6786 lines
169 KiB
C
6786 lines
169 KiB
C
/*
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* pgbench.c
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*
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* A simple benchmark program for PostgreSQL
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* Originally written by Tatsuo Ishii and enhanced by many contributors.
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*
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* src/bin/pgbench/pgbench.c
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* Copyright (c) 2000-2020, PostgreSQL Global Development Group
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* ALL RIGHTS RESERVED;
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*
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* Permission to use, copy, modify, and distribute this software and its
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* documentation for any purpose, without fee, and without a written agreement
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* is hereby granted, provided that the above copyright notice and this
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* paragraph and the following two paragraphs appear in all copies.
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*
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* IN NO EVENT SHALL THE AUTHOR OR DISTRIBUTORS BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
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* LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
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* DOCUMENTATION, EVEN IF THE AUTHOR OR DISTRIBUTORS HAVE BEEN ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* THE AUTHOR AND DISTRIBUTORS SPECIFICALLY DISCLAIMS ANY WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE AUTHOR AND DISTRIBUTORS HAS NO OBLIGATIONS TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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*/
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#ifdef WIN32
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#define FD_SETSIZE 1024 /* must set before winsock2.h is included */
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#endif
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#include "postgres_fe.h"
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#include <ctype.h>
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#include <float.h>
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#include <limits.h>
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#include <math.h>
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#include <signal.h>
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#include <time.h>
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#include <sys/time.h>
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#ifdef HAVE_SYS_RESOURCE_H
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#include <sys/resource.h> /* for getrlimit */
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#endif
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/* For testing, PGBENCH_USE_SELECT can be defined to force use of that code */
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#if defined(HAVE_PPOLL) && !defined(PGBENCH_USE_SELECT)
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#define POLL_USING_PPOLL
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#ifdef HAVE_POLL_H
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#include <poll.h>
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#endif
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#else /* no ppoll(), so use select() */
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#define POLL_USING_SELECT
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif
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#endif
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#include "common/int.h"
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#include "common/logging.h"
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#include "fe_utils/cancel.h"
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#include "fe_utils/conditional.h"
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#include "getopt_long.h"
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#include "libpq-fe.h"
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#include "pgbench.h"
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#include "portability/instr_time.h"
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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#define ERRCODE_UNDEFINED_TABLE "42P01"
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/*
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* Hashing constants
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*/
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#define FNV_PRIME UINT64CONST(0x100000001b3)
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#define FNV_OFFSET_BASIS UINT64CONST(0xcbf29ce484222325)
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#define MM2_MUL UINT64CONST(0xc6a4a7935bd1e995)
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#define MM2_MUL_TIMES_8 UINT64CONST(0x35253c9ade8f4ca8)
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#define MM2_ROT 47
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/*
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* Multi-platform socket set implementations
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*/
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#ifdef POLL_USING_PPOLL
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#define SOCKET_WAIT_METHOD "ppoll"
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typedef struct socket_set
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{
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int maxfds; /* allocated length of pollfds[] array */
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int curfds; /* number currently in use */
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struct pollfd pollfds[FLEXIBLE_ARRAY_MEMBER];
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} socket_set;
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#endif /* POLL_USING_PPOLL */
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#ifdef POLL_USING_SELECT
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#define SOCKET_WAIT_METHOD "select"
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typedef struct socket_set
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{
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int maxfd; /* largest FD currently set in fds */
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fd_set fds;
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} socket_set;
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#endif /* POLL_USING_SELECT */
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/*
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* Multi-platform pthread implementations
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*/
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#ifdef WIN32
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/* Use native win32 threads on Windows */
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typedef struct win32_pthread *pthread_t;
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typedef int pthread_attr_t;
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static int pthread_create(pthread_t *thread, pthread_attr_t *attr, void *(*start_routine) (void *), void *arg);
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static int pthread_join(pthread_t th, void **thread_return);
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#elif defined(ENABLE_THREAD_SAFETY)
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/* Use platform-dependent pthread capability */
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#include <pthread.h>
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#else
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/* No threads implementation, use none (-j 1) */
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#define pthread_t void *
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#endif
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/********************************************************************
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* some configurable parameters */
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#define DEFAULT_INIT_STEPS "dtgvp" /* default -I setting */
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#define ALL_INIT_STEPS "dtgGvpf" /* all possible steps */
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#define LOG_STEP_SECONDS 5 /* seconds between log messages */
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#define DEFAULT_NXACTS 10 /* default nxacts */
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#define MIN_GAUSSIAN_PARAM 2.0 /* minimum parameter for gauss */
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#define MIN_ZIPFIAN_PARAM 1.001 /* minimum parameter for zipfian */
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#define MAX_ZIPFIAN_PARAM 1000.0 /* maximum parameter for zipfian */
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int nxacts = 0; /* number of transactions per client */
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int duration = 0; /* duration in seconds */
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int64 end_time = 0; /* when to stop in micro seconds, under -T */
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/*
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* scaling factor. for example, scale = 10 will make 1000000 tuples in
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* pgbench_accounts table.
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*/
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int scale = 1;
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/*
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* fillfactor. for example, fillfactor = 90 will use only 90 percent
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* space during inserts and leave 10 percent free.
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*/
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int fillfactor = 100;
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/*
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* use unlogged tables?
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*/
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bool unlogged_tables = false;
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/*
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* log sampling rate (1.0 = log everything, 0.0 = option not given)
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*/
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double sample_rate = 0.0;
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/*
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* When threads are throttled to a given rate limit, this is the target delay
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* to reach that rate in usec. 0 is the default and means no throttling.
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*/
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double throttle_delay = 0;
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/*
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* Transactions which take longer than this limit (in usec) are counted as
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* late, and reported as such, although they are completed anyway. When
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* throttling is enabled, execution time slots that are more than this late
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* are skipped altogether, and counted separately.
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*/
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int64 latency_limit = 0;
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/*
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* tablespace selection
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*/
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char *tablespace = NULL;
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char *index_tablespace = NULL;
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/*
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* Number of "pgbench_accounts" partitions. 0 is the default and means no
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* partitioning.
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*/
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static int partitions = 0;
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/* partitioning strategy for "pgbench_accounts" */
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typedef enum
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{
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PART_NONE, /* no partitioning */
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PART_RANGE, /* range partitioning */
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PART_HASH /* hash partitioning */
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} partition_method_t;
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static partition_method_t partition_method = PART_NONE;
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static const char *PARTITION_METHOD[] = {"none", "range", "hash"};
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/* random seed used to initialize base_random_sequence */
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int64 random_seed = -1;
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/*
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* end of configurable parameters
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*********************************************************************/
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#define nbranches 1 /* Makes little sense to change this. Change
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* -s instead */
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#define ntellers 10
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#define naccounts 100000
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/*
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* The scale factor at/beyond which 32bit integers are incapable of storing
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* 64bit values.
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*
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* Although the actual threshold is 21474, we use 20000 because it is easier to
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* document and remember, and isn't that far away from the real threshold.
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*/
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#define SCALE_32BIT_THRESHOLD 20000
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bool use_log; /* log transaction latencies to a file */
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bool use_quiet; /* quiet logging onto stderr */
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int agg_interval; /* log aggregates instead of individual
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* transactions */
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bool per_script_stats = false; /* whether to collect stats per script */
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int progress = 0; /* thread progress report every this seconds */
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bool progress_timestamp = false; /* progress report with Unix time */
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int nclients = 1; /* number of clients */
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int nthreads = 1; /* number of threads */
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bool is_connect; /* establish connection for each transaction */
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bool report_per_command; /* report per-command latencies */
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int main_pid; /* main process id used in log filename */
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char *pghost = "";
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char *pgport = "";
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char *login = NULL;
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char *dbName;
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char *logfile_prefix = NULL;
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const char *progname;
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#define WSEP '@' /* weight separator */
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volatile bool timer_exceeded = false; /* flag from signal handler */
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/*
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* Variable definitions.
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*
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* If a variable only has a string value, "svalue" is that value, and value is
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* "not set". If the value is known, "value" contains the value (in any
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* variant).
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*
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* In this case "svalue" contains the string equivalent of the value, if we've
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* had occasion to compute that, or NULL if we haven't.
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*/
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typedef struct
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{
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char *name; /* variable's name */
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char *svalue; /* its value in string form, if known */
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PgBenchValue value; /* actual variable's value */
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} Variable;
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#define MAX_SCRIPTS 128 /* max number of SQL scripts allowed */
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#define SHELL_COMMAND_SIZE 256 /* maximum size allowed for shell command */
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/*
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* Simple data structure to keep stats about something.
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*
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* XXX probably the first value should be kept and used as an offset for
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* better numerical stability...
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*/
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typedef struct SimpleStats
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{
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int64 count; /* how many values were encountered */
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double min; /* the minimum seen */
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double max; /* the maximum seen */
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double sum; /* sum of values */
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double sum2; /* sum of squared values */
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} SimpleStats;
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/*
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* Data structure to hold various statistics: per-thread and per-script stats
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* are maintained and merged together.
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*/
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typedef struct StatsData
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{
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time_t start_time; /* interval start time, for aggregates */
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int64 cnt; /* number of transactions, including skipped */
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int64 skipped; /* number of transactions skipped under --rate
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* and --latency-limit */
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SimpleStats latency;
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SimpleStats lag;
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} StatsData;
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/*
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* Struct to keep random state.
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*/
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typedef struct RandomState
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{
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unsigned short xseed[3];
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} RandomState;
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/* Various random sequences are initialized from this one. */
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static RandomState base_random_sequence;
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/*
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* Connection state machine states.
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*/
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typedef enum
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{
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/*
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* The client must first choose a script to execute. Once chosen, it can
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* either be throttled (state CSTATE_PREPARE_THROTTLE under --rate), start
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* right away (state CSTATE_START_TX) or not start at all if the timer was
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* exceeded (state CSTATE_FINISHED).
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*/
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CSTATE_CHOOSE_SCRIPT,
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/*
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* CSTATE_START_TX performs start-of-transaction processing. Establishes
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* a new connection for the transaction in --connect mode, records the
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* transaction start time, and proceed to the first command.
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*
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* Note: once a script is started, it will either error or run till its
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* end, where it may be interrupted. It is not interrupted while running,
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* so pgbench --time is to be understood as tx are allowed to start in
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* that time, and will finish when their work is completed.
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*/
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CSTATE_START_TX,
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/*
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* In CSTATE_PREPARE_THROTTLE state, we calculate when to begin the next
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* transaction, and advance to CSTATE_THROTTLE. CSTATE_THROTTLE state
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* sleeps until that moment, then advances to CSTATE_START_TX, or
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* CSTATE_FINISHED if the next transaction would start beyond the end of
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* the run.
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*/
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CSTATE_PREPARE_THROTTLE,
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CSTATE_THROTTLE,
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/*
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* We loop through these states, to process each command in the script:
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*
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* CSTATE_START_COMMAND starts the execution of a command. On a SQL
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* command, the command is sent to the server, and we move to
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* CSTATE_WAIT_RESULT state. On a \sleep meta-command, the timer is set,
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* and we enter the CSTATE_SLEEP state to wait for it to expire. Other
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* meta-commands are executed immediately. If the command about to start
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* is actually beyond the end of the script, advance to CSTATE_END_TX.
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*
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* CSTATE_WAIT_RESULT waits until we get a result set back from the server
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* for the current command.
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*
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* CSTATE_SLEEP waits until the end of \sleep.
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*
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* CSTATE_END_COMMAND records the end-of-command timestamp, increments the
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* command counter, and loops back to CSTATE_START_COMMAND state.
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*
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* CSTATE_SKIP_COMMAND is used by conditional branches which are not
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* executed. It quickly skip commands that do not need any evaluation.
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* This state can move forward several commands, till there is something
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* to do or the end of the script.
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*/
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CSTATE_START_COMMAND,
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CSTATE_WAIT_RESULT,
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CSTATE_SLEEP,
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CSTATE_END_COMMAND,
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CSTATE_SKIP_COMMAND,
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/*
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* CSTATE_END_TX performs end-of-transaction processing. It calculates
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* latency, and logs the transaction. In --connect mode, it closes the
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* current connection.
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*
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* Then either starts over in CSTATE_CHOOSE_SCRIPT, or enters
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* CSTATE_FINISHED if we have no more work to do.
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*/
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CSTATE_END_TX,
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/*
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* Final states. CSTATE_ABORTED means that the script execution was
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* aborted because a command failed, CSTATE_FINISHED means success.
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*/
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CSTATE_ABORTED,
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CSTATE_FINISHED
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} ConnectionStateEnum;
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/*
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* Connection state.
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*/
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typedef struct
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{
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PGconn *con; /* connection handle to DB */
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int id; /* client No. */
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ConnectionStateEnum state; /* state machine's current state. */
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ConditionalStack cstack; /* enclosing conditionals state */
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/*
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* Separate randomness for each client. This is used for random functions
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* PGBENCH_RANDOM_* during the execution of the script.
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*/
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RandomState cs_func_rs;
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int use_file; /* index in sql_script for this client */
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int command; /* command number in script */
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/* client variables */
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Variable *variables; /* array of variable definitions */
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int nvariables; /* number of variables */
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bool vars_sorted; /* are variables sorted by name? */
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/* various times about current transaction */
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int64 txn_scheduled; /* scheduled start time of transaction (usec) */
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int64 sleep_until; /* scheduled start time of next cmd (usec) */
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instr_time txn_begin; /* used for measuring schedule lag times */
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instr_time stmt_begin; /* used for measuring statement latencies */
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bool prepared[MAX_SCRIPTS]; /* whether client prepared the script */
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/* per client collected stats */
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int64 cnt; /* client transaction count, for -t */
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int ecnt; /* error count */
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} CState;
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/*
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* Thread state
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*/
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typedef struct
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{
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int tid; /* thread id */
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pthread_t thread; /* thread handle */
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CState *state; /* array of CState */
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int nstate; /* length of state[] */
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/*
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* Separate randomness for each thread. Each thread option uses its own
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* random state to make all of them independent of each other and
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* therefore deterministic at the thread level.
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*/
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RandomState ts_choose_rs; /* random state for selecting a script */
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RandomState ts_throttle_rs; /* random state for transaction throttling */
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RandomState ts_sample_rs; /* random state for log sampling */
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int64 throttle_trigger; /* previous/next throttling (us) */
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FILE *logfile; /* where to log, or NULL */
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/* per thread collected stats */
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instr_time start_time; /* thread start time */
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instr_time conn_time;
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StatsData stats;
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int64 latency_late; /* executed but late transactions */
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} TState;
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#define INVALID_THREAD ((pthread_t) 0)
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/*
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* queries read from files
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*/
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#define SQL_COMMAND 1
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#define META_COMMAND 2
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/*
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* max number of backslash command arguments or SQL variables,
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* including the command or SQL statement itself
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*/
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#define MAX_ARGS 256
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|
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typedef enum MetaCommand
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{
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META_NONE, /* not a known meta-command */
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META_SET, /* \set */
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META_SETSHELL, /* \setshell */
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META_SHELL, /* \shell */
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META_SLEEP, /* \sleep */
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META_GSET, /* \gset */
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META_IF, /* \if */
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META_ELIF, /* \elif */
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META_ELSE, /* \else */
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META_ENDIF /* \endif */
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} MetaCommand;
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|
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typedef enum QueryMode
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{
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QUERY_SIMPLE, /* simple query */
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QUERY_EXTENDED, /* extended query */
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QUERY_PREPARED, /* extended query with prepared statements */
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NUM_QUERYMODE
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} QueryMode;
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static QueryMode querymode = QUERY_SIMPLE;
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static const char *QUERYMODE[] = {"simple", "extended", "prepared"};
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|
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/*
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* struct Command represents one command in a script.
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*
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* lines The raw, possibly multi-line command text. Variable substitution
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* not applied.
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* first_line A short, single-line extract of 'lines', for error reporting.
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* type SQL_COMMAND or META_COMMAND
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* meta The type of meta-command, or META_NONE if command is SQL
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* argc Number of arguments of the command, 0 if not yet processed.
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* argv Command arguments, the first of which is the command or SQL
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* string itself. For SQL commands, after post-processing
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* argv[0] is the same as 'lines' with variables substituted.
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* varprefix SQL commands terminated with \gset have this set
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* to a non NULL value. If nonempty, it's used to prefix the
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* variable name that receives the value.
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* expr Parsed expression, if needed.
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* stats Time spent in this command.
|
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*/
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|
typedef struct Command
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{
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PQExpBufferData lines;
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char *first_line;
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int type;
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MetaCommand meta;
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int argc;
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char *argv[MAX_ARGS];
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char *varprefix;
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|
PgBenchExpr *expr;
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SimpleStats stats;
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} Command;
|
|
|
|
typedef struct ParsedScript
|
|
{
|
|
const char *desc; /* script descriptor (eg, file name) */
|
|
int weight; /* selection weight */
|
|
Command **commands; /* NULL-terminated array of Commands */
|
|
StatsData stats; /* total time spent in script */
|
|
} ParsedScript;
|
|
|
|
static ParsedScript sql_script[MAX_SCRIPTS]; /* SQL script files */
|
|
static int num_scripts; /* number of scripts in sql_script[] */
|
|
static int64 total_weight = 0;
|
|
|
|
/* Builtin test scripts */
|
|
typedef struct BuiltinScript
|
|
{
|
|
const char *name; /* very short name for -b ... */
|
|
const char *desc; /* short description */
|
|
const char *script; /* actual pgbench script */
|
|
} BuiltinScript;
|
|
|
|
static const BuiltinScript builtin_script[] =
|
|
{
|
|
{
|
|
"tpcb-like",
|
|
"<builtin: TPC-B (sort of)>",
|
|
"\\set aid random(1, " CppAsString2(naccounts) " * :scale)\n"
|
|
"\\set bid random(1, " CppAsString2(nbranches) " * :scale)\n"
|
|
"\\set tid random(1, " CppAsString2(ntellers) " * :scale)\n"
|
|
"\\set delta random(-5000, 5000)\n"
|
|
"BEGIN;\n"
|
|
"UPDATE pgbench_accounts SET abalance = abalance + :delta WHERE aid = :aid;\n"
|
|
"SELECT abalance FROM pgbench_accounts WHERE aid = :aid;\n"
|
|
"UPDATE pgbench_tellers SET tbalance = tbalance + :delta WHERE tid = :tid;\n"
|
|
"UPDATE pgbench_branches SET bbalance = bbalance + :delta WHERE bid = :bid;\n"
|
|
"INSERT INTO pgbench_history (tid, bid, aid, delta, mtime) VALUES (:tid, :bid, :aid, :delta, CURRENT_TIMESTAMP);\n"
|
|
"END;\n"
|
|
},
|
|
{
|
|
"simple-update",
|
|
"<builtin: simple update>",
|
|
"\\set aid random(1, " CppAsString2(naccounts) " * :scale)\n"
|
|
"\\set bid random(1, " CppAsString2(nbranches) " * :scale)\n"
|
|
"\\set tid random(1, " CppAsString2(ntellers) " * :scale)\n"
|
|
"\\set delta random(-5000, 5000)\n"
|
|
"BEGIN;\n"
|
|
"UPDATE pgbench_accounts SET abalance = abalance + :delta WHERE aid = :aid;\n"
|
|
"SELECT abalance FROM pgbench_accounts WHERE aid = :aid;\n"
|
|
"INSERT INTO pgbench_history (tid, bid, aid, delta, mtime) VALUES (:tid, :bid, :aid, :delta, CURRENT_TIMESTAMP);\n"
|
|
"END;\n"
|
|
},
|
|
{
|
|
"select-only",
|
|
"<builtin: select only>",
|
|
"\\set aid random(1, " CppAsString2(naccounts) " * :scale)\n"
|
|
"SELECT abalance FROM pgbench_accounts WHERE aid = :aid;\n"
|
|
}
|
|
};
|
|
|
|
|
|
/* Function prototypes */
|
|
static void setNullValue(PgBenchValue *pv);
|
|
static void setBoolValue(PgBenchValue *pv, bool bval);
|
|
static void setIntValue(PgBenchValue *pv, int64 ival);
|
|
static void setDoubleValue(PgBenchValue *pv, double dval);
|
|
static bool evaluateExpr(CState *st, PgBenchExpr *expr,
|
|
PgBenchValue *retval);
|
|
static ConnectionStateEnum executeMetaCommand(CState *st, instr_time *now);
|
|
static void doLog(TState *thread, CState *st,
|
|
StatsData *agg, bool skipped, double latency, double lag);
|
|
static void processXactStats(TState *thread, CState *st, instr_time *now,
|
|
bool skipped, StatsData *agg);
|
|
static void append_fillfactor(char *opts, int len);
|
|
static void addScript(ParsedScript script);
|
|
static void *threadRun(void *arg);
|
|
static void finishCon(CState *st);
|
|
static void setalarm(int seconds);
|
|
static socket_set *alloc_socket_set(int count);
|
|
static void free_socket_set(socket_set *sa);
|
|
static void clear_socket_set(socket_set *sa);
|
|
static void add_socket_to_set(socket_set *sa, int fd, int idx);
|
|
static int wait_on_socket_set(socket_set *sa, int64 usecs);
|
|
static bool socket_has_input(socket_set *sa, int fd, int idx);
|
|
|
|
|
|
/* callback functions for our flex lexer */
|
|
static const PsqlScanCallbacks pgbench_callbacks = {
|
|
NULL, /* don't need get_variable functionality */
|
|
};
|
|
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
printf("%s is a benchmarking tool for PostgreSQL.\n\n"
|
|
"Usage:\n"
|
|
" %s [OPTION]... [DBNAME]\n"
|
|
"\nInitialization options:\n"
|
|
" -i, --initialize invokes initialization mode\n"
|
|
" -I, --init-steps=[" ALL_INIT_STEPS "]+ (default \"" DEFAULT_INIT_STEPS "\")\n"
|
|
" run selected initialization steps\n"
|
|
" -F, --fillfactor=NUM set fill factor\n"
|
|
" -n, --no-vacuum do not run VACUUM during initialization\n"
|
|
" -q, --quiet quiet logging (one message each 5 seconds)\n"
|
|
" -s, --scale=NUM scaling factor\n"
|
|
" --foreign-keys create foreign key constraints between tables\n"
|
|
" --index-tablespace=TABLESPACE\n"
|
|
" create indexes in the specified tablespace\n"
|
|
" --partitions=NUM partition pgbench_accounts in NUM parts (default: 0)\n"
|
|
" --partition-method=(range|hash)\n"
|
|
" partition pgbench_accounts with this method (default: range)\n"
|
|
" --tablespace=TABLESPACE create tables in the specified tablespace\n"
|
|
" --unlogged-tables create tables as unlogged tables\n"
|
|
"\nOptions to select what to run:\n"
|
|
" -b, --builtin=NAME[@W] add builtin script NAME weighted at W (default: 1)\n"
|
|
" (use \"-b list\" to list available scripts)\n"
|
|
" -f, --file=FILENAME[@W] add script FILENAME weighted at W (default: 1)\n"
|
|
" -N, --skip-some-updates skip updates of pgbench_tellers and pgbench_branches\n"
|
|
" (same as \"-b simple-update\")\n"
|
|
" -S, --select-only perform SELECT-only transactions\n"
|
|
" (same as \"-b select-only\")\n"
|
|
"\nBenchmarking options:\n"
|
|
" -c, --client=NUM number of concurrent database clients (default: 1)\n"
|
|
" -C, --connect establish new connection for each transaction\n"
|
|
" -D, --define=VARNAME=VALUE\n"
|
|
" define variable for use by custom script\n"
|
|
" -j, --jobs=NUM number of threads (default: 1)\n"
|
|
" -l, --log write transaction times to log file\n"
|
|
" -L, --latency-limit=NUM count transactions lasting more than NUM ms as late\n"
|
|
" -M, --protocol=simple|extended|prepared\n"
|
|
" protocol for submitting queries (default: simple)\n"
|
|
" -n, --no-vacuum do not run VACUUM before tests\n"
|
|
" -P, --progress=NUM show thread progress report every NUM seconds\n"
|
|
" -r, --report-latencies report average latency per command\n"
|
|
" -R, --rate=NUM target rate in transactions per second\n"
|
|
" -s, --scale=NUM report this scale factor in output\n"
|
|
" -t, --transactions=NUM number of transactions each client runs (default: 10)\n"
|
|
" -T, --time=NUM duration of benchmark test in seconds\n"
|
|
" -v, --vacuum-all vacuum all four standard tables before tests\n"
|
|
" --aggregate-interval=NUM aggregate data over NUM seconds\n"
|
|
" --log-prefix=PREFIX prefix for transaction time log file\n"
|
|
" (default: \"pgbench_log\")\n"
|
|
" --progress-timestamp use Unix epoch timestamps for progress\n"
|
|
" --random-seed=SEED set random seed (\"time\", \"rand\", integer)\n"
|
|
" --sampling-rate=NUM fraction of transactions to log (e.g., 0.01 for 1%%)\n"
|
|
" --show-script=NAME show builtin script code, then exit\n"
|
|
"\nCommon options:\n"
|
|
" -d, --debug print debugging output\n"
|
|
" -h, --host=HOSTNAME database server host or socket directory\n"
|
|
" -p, --port=PORT database server port number\n"
|
|
" -U, --username=USERNAME connect as specified database user\n"
|
|
" -V, --version output version information, then exit\n"
|
|
" -?, --help show this help, then exit\n"
|
|
"\n"
|
|
"Report bugs to <%s>.\n",
|
|
progname, progname, PACKAGE_BUGREPORT);
|
|
}
|
|
|
|
/* return whether str matches "^\s*[-+]?[0-9]+$" */
|
|
static bool
|
|
is_an_int(const char *str)
|
|
{
|
|
const char *ptr = str;
|
|
|
|
/* skip leading spaces; cast is consistent with strtoint64 */
|
|
while (*ptr && isspace((unsigned char) *ptr))
|
|
ptr++;
|
|
|
|
/* skip sign */
|
|
if (*ptr == '+' || *ptr == '-')
|
|
ptr++;
|
|
|
|
/* at least one digit */
|
|
if (*ptr && !isdigit((unsigned char) *ptr))
|
|
return false;
|
|
|
|
/* eat all digits */
|
|
while (*ptr && isdigit((unsigned char) *ptr))
|
|
ptr++;
|
|
|
|
/* must have reached end of string */
|
|
return *ptr == '\0';
|
|
}
|
|
|
|
|
|
/*
|
|
* strtoint64 -- convert a string to 64-bit integer
|
|
*
|
|
* This function is a slightly modified version of scanint8() from
|
|
* src/backend/utils/adt/int8.c.
|
|
*
|
|
* The function returns whether the conversion worked, and if so
|
|
* "*result" is set to the result.
|
|
*
|
|
* If not errorOK, an error message is also printed out on errors.
|
|
*/
|
|
bool
|
|
strtoint64(const char *str, bool errorOK, int64 *result)
|
|
{
|
|
const char *ptr = str;
|
|
int64 tmp = 0;
|
|
bool neg = false;
|
|
|
|
/*
|
|
* Do our own scan, rather than relying on sscanf which might be broken
|
|
* for long long.
|
|
*
|
|
* As INT64_MIN can't be stored as a positive 64 bit integer, accumulate
|
|
* value as a negative number.
|
|
*/
|
|
|
|
/* skip leading spaces */
|
|
while (*ptr && isspace((unsigned char) *ptr))
|
|
ptr++;
|
|
|
|
/* handle sign */
|
|
if (*ptr == '-')
|
|
{
|
|
ptr++;
|
|
neg = true;
|
|
}
|
|
else if (*ptr == '+')
|
|
ptr++;
|
|
|
|
/* require at least one digit */
|
|
if (unlikely(!isdigit((unsigned char) *ptr)))
|
|
goto invalid_syntax;
|
|
|
|
/* process digits */
|
|
while (*ptr && isdigit((unsigned char) *ptr))
|
|
{
|
|
int8 digit = (*ptr++ - '0');
|
|
|
|
if (unlikely(pg_mul_s64_overflow(tmp, 10, &tmp)) ||
|
|
unlikely(pg_sub_s64_overflow(tmp, digit, &tmp)))
|
|
goto out_of_range;
|
|
}
|
|
|
|
/* allow trailing whitespace, but not other trailing chars */
|
|
while (*ptr != '\0' && isspace((unsigned char) *ptr))
|
|
ptr++;
|
|
|
|
if (unlikely(*ptr != '\0'))
|
|
goto invalid_syntax;
|
|
|
|
if (!neg)
|
|
{
|
|
if (unlikely(tmp == PG_INT64_MIN))
|
|
goto out_of_range;
|
|
tmp = -tmp;
|
|
}
|
|
|
|
*result = tmp;
|
|
return true;
|
|
|
|
out_of_range:
|
|
if (!errorOK)
|
|
pg_log_error("value \"%s\" is out of range for type bigint", str);
|
|
return false;
|
|
|
|
invalid_syntax:
|
|
if (!errorOK)
|
|
pg_log_error("invalid input syntax for type bigint: \"%s\"", str);
|
|
return false;
|
|
}
|
|
|
|
/* convert string to double, detecting overflows/underflows */
|
|
bool
|
|
strtodouble(const char *str, bool errorOK, double *dv)
|
|
{
|
|
char *end;
|
|
|
|
errno = 0;
|
|
*dv = strtod(str, &end);
|
|
|
|
if (unlikely(errno != 0))
|
|
{
|
|
if (!errorOK)
|
|
pg_log_error("value \"%s\" is out of range for type double", str);
|
|
return false;
|
|
}
|
|
|
|
if (unlikely(end == str || *end != '\0'))
|
|
{
|
|
if (!errorOK)
|
|
pg_log_error("invalid input syntax for type double: \"%s\"", str);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* Initialize a random state struct.
|
|
*
|
|
* We derive the seed from base_random_sequence, which must be set up already.
|
|
*/
|
|
static void
|
|
initRandomState(RandomState *random_state)
|
|
{
|
|
random_state->xseed[0] = (unsigned short)
|
|
(pg_jrand48(base_random_sequence.xseed) & 0xFFFF);
|
|
random_state->xseed[1] = (unsigned short)
|
|
(pg_jrand48(base_random_sequence.xseed) & 0xFFFF);
|
|
random_state->xseed[2] = (unsigned short)
|
|
(pg_jrand48(base_random_sequence.xseed) & 0xFFFF);
|
|
}
|
|
|
|
/*
|
|
* Random number generator: uniform distribution from min to max inclusive.
|
|
*
|
|
* Although the limits are expressed as int64, you can't generate the full
|
|
* int64 range in one call, because the difference of the limits mustn't
|
|
* overflow int64. In practice it's unwise to ask for more than an int32
|
|
* range, because of the limited precision of pg_erand48().
|
|
*/
|
|
static int64
|
|
getrand(RandomState *random_state, int64 min, int64 max)
|
|
{
|
|
/*
|
|
* Odd coding is so that min and max have approximately the same chance of
|
|
* being selected as do numbers between them.
|
|
*
|
|
* pg_erand48() is thread-safe and concurrent, which is why we use it
|
|
* rather than random(), which in glibc is non-reentrant, and therefore
|
|
* protected by a mutex, and therefore a bottleneck on machines with many
|
|
* CPUs.
|
|
*/
|
|
return min + (int64) ((max - min + 1) * pg_erand48(random_state->xseed));
|
|
}
|
|
|
|
/*
|
|
* random number generator: exponential distribution from min to max inclusive.
|
|
* the parameter is so that the density of probability for the last cut-off max
|
|
* value is exp(-parameter).
|
|
*/
|
|
static int64
|
|
getExponentialRand(RandomState *random_state, int64 min, int64 max,
|
|
double parameter)
|
|
{
|
|
double cut,
|
|
uniform,
|
|
rand;
|
|
|
|
/* abort if wrong parameter, but must really be checked beforehand */
|
|
Assert(parameter > 0.0);
|
|
cut = exp(-parameter);
|
|
/* erand in [0, 1), uniform in (0, 1] */
|
|
uniform = 1.0 - pg_erand48(random_state->xseed);
|
|
|
|
/*
|
|
* inner expression in (cut, 1] (if parameter > 0), rand in [0, 1)
|
|
*/
|
|
Assert((1.0 - cut) != 0.0);
|
|
rand = -log(cut + (1.0 - cut) * uniform) / parameter;
|
|
/* return int64 random number within between min and max */
|
|
return min + (int64) ((max - min + 1) * rand);
|
|
}
|
|
|
|
/* random number generator: gaussian distribution from min to max inclusive */
|
|
static int64
|
|
getGaussianRand(RandomState *random_state, int64 min, int64 max,
|
|
double parameter)
|
|
{
|
|
double stdev;
|
|
double rand;
|
|
|
|
/* abort if parameter is too low, but must really be checked beforehand */
|
|
Assert(parameter >= MIN_GAUSSIAN_PARAM);
|
|
|
|
/*
|
|
* Get user specified random number from this loop, with -parameter <
|
|
* stdev <= parameter
|
|
*
|
|
* This loop is executed until the number is in the expected range.
|
|
*
|
|
* As the minimum parameter is 2.0, the probability of looping is low:
|
|
* sqrt(-2 ln(r)) <= 2 => r >= e^{-2} ~ 0.135, then when taking the
|
|
* average sinus multiplier as 2/pi, we have a 8.6% looping probability in
|
|
* the worst case. For a parameter value of 5.0, the looping probability
|
|
* is about e^{-5} * 2 / pi ~ 0.43%.
|
|
*/
|
|
do
|
|
{
|
|
/*
|
|
* pg_erand48 generates [0,1), but for the basic version of the
|
|
* Box-Muller transform the two uniformly distributed random numbers
|
|
* are expected in (0, 1] (see
|
|
* https://en.wikipedia.org/wiki/Box-Muller_transform)
|
|
*/
|
|
double rand1 = 1.0 - pg_erand48(random_state->xseed);
|
|
double rand2 = 1.0 - pg_erand48(random_state->xseed);
|
|
|
|
/* Box-Muller basic form transform */
|
|
double var_sqrt = sqrt(-2.0 * log(rand1));
|
|
|
|
stdev = var_sqrt * sin(2.0 * M_PI * rand2);
|
|
|
|
/*
|
|
* we may try with cos, but there may be a bias induced if the
|
|
* previous value fails the test. To be on the safe side, let us try
|
|
* over.
|
|
*/
|
|
}
|
|
while (stdev < -parameter || stdev >= parameter);
|
|
|
|
/* stdev is in [-parameter, parameter), normalization to [0,1) */
|
|
rand = (stdev + parameter) / (parameter * 2.0);
|
|
|
|
/* return int64 random number within between min and max */
|
|
return min + (int64) ((max - min + 1) * rand);
|
|
}
|
|
|
|
/*
|
|
* random number generator: generate a value, such that the series of values
|
|
* will approximate a Poisson distribution centered on the given value.
|
|
*
|
|
* Individual results are rounded to integers, though the center value need
|
|
* not be one.
|
|
*/
|
|
static int64
|
|
getPoissonRand(RandomState *random_state, double center)
|
|
{
|
|
/*
|
|
* Use inverse transform sampling to generate a value > 0, such that the
|
|
* expected (i.e. average) value is the given argument.
|
|
*/
|
|
double uniform;
|
|
|
|
/* erand in [0, 1), uniform in (0, 1] */
|
|
uniform = 1.0 - pg_erand48(random_state->xseed);
|
|
|
|
return (int64) (-log(uniform) * center + 0.5);
|
|
}
|
|
|
|
/*
|
|
* Computing zipfian using rejection method, based on
|
|
* "Non-Uniform Random Variate Generation",
|
|
* Luc Devroye, p. 550-551, Springer 1986.
|
|
*
|
|
* This works for s > 1.0, but may perform badly for s very close to 1.0.
|
|
*/
|
|
static int64
|
|
computeIterativeZipfian(RandomState *random_state, int64 n, double s)
|
|
{
|
|
double b = pow(2.0, s - 1.0);
|
|
double x,
|
|
t,
|
|
u,
|
|
v;
|
|
|
|
/* Ensure n is sane */
|
|
if (n <= 1)
|
|
return 1;
|
|
|
|
while (true)
|
|
{
|
|
/* random variates */
|
|
u = pg_erand48(random_state->xseed);
|
|
v = pg_erand48(random_state->xseed);
|
|
|
|
x = floor(pow(u, -1.0 / (s - 1.0)));
|
|
|
|
t = pow(1.0 + 1.0 / x, s - 1.0);
|
|
/* reject if too large or out of bound */
|
|
if (v * x * (t - 1.0) / (b - 1.0) <= t / b && x <= n)
|
|
break;
|
|
}
|
|
return (int64) x;
|
|
}
|
|
|
|
/* random number generator: zipfian distribution from min to max inclusive */
|
|
static int64
|
|
getZipfianRand(RandomState *random_state, int64 min, int64 max, double s)
|
|
{
|
|
int64 n = max - min + 1;
|
|
|
|
/* abort if parameter is invalid */
|
|
Assert(MIN_ZIPFIAN_PARAM <= s && s <= MAX_ZIPFIAN_PARAM);
|
|
|
|
return min - 1 + computeIterativeZipfian(random_state, n, s);
|
|
}
|
|
|
|
/*
|
|
* FNV-1a hash function
|
|
*/
|
|
static int64
|
|
getHashFnv1a(int64 val, uint64 seed)
|
|
{
|
|
int64 result;
|
|
int i;
|
|
|
|
result = FNV_OFFSET_BASIS ^ seed;
|
|
for (i = 0; i < 8; ++i)
|
|
{
|
|
int32 octet = val & 0xff;
|
|
|
|
val = val >> 8;
|
|
result = result ^ octet;
|
|
result = result * FNV_PRIME;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* Murmur2 hash function
|
|
*
|
|
* Based on original work of Austin Appleby
|
|
* https://github.com/aappleby/smhasher/blob/master/src/MurmurHash2.cpp
|
|
*/
|
|
static int64
|
|
getHashMurmur2(int64 val, uint64 seed)
|
|
{
|
|
uint64 result = seed ^ MM2_MUL_TIMES_8; /* sizeof(int64) */
|
|
uint64 k = (uint64) val;
|
|
|
|
k *= MM2_MUL;
|
|
k ^= k >> MM2_ROT;
|
|
k *= MM2_MUL;
|
|
|
|
result ^= k;
|
|
result *= MM2_MUL;
|
|
|
|
result ^= result >> MM2_ROT;
|
|
result *= MM2_MUL;
|
|
result ^= result >> MM2_ROT;
|
|
|
|
return (int64) result;
|
|
}
|
|
|
|
/*
|
|
* Initialize the given SimpleStats struct to all zeroes
|
|
*/
|
|
static void
|
|
initSimpleStats(SimpleStats *ss)
|
|
{
|
|
memset(ss, 0, sizeof(SimpleStats));
|
|
}
|
|
|
|
/*
|
|
* Accumulate one value into a SimpleStats struct.
|
|
*/
|
|
static void
|
|
addToSimpleStats(SimpleStats *ss, double val)
|
|
{
|
|
if (ss->count == 0 || val < ss->min)
|
|
ss->min = val;
|
|
if (ss->count == 0 || val > ss->max)
|
|
ss->max = val;
|
|
ss->count++;
|
|
ss->sum += val;
|
|
ss->sum2 += val * val;
|
|
}
|
|
|
|
/*
|
|
* Merge two SimpleStats objects
|
|
*/
|
|
static void
|
|
mergeSimpleStats(SimpleStats *acc, SimpleStats *ss)
|
|
{
|
|
if (acc->count == 0 || ss->min < acc->min)
|
|
acc->min = ss->min;
|
|
if (acc->count == 0 || ss->max > acc->max)
|
|
acc->max = ss->max;
|
|
acc->count += ss->count;
|
|
acc->sum += ss->sum;
|
|
acc->sum2 += ss->sum2;
|
|
}
|
|
|
|
/*
|
|
* Initialize a StatsData struct to mostly zeroes, with its start time set to
|
|
* the given value.
|
|
*/
|
|
static void
|
|
initStats(StatsData *sd, time_t start_time)
|
|
{
|
|
sd->start_time = start_time;
|
|
sd->cnt = 0;
|
|
sd->skipped = 0;
|
|
initSimpleStats(&sd->latency);
|
|
initSimpleStats(&sd->lag);
|
|
}
|
|
|
|
/*
|
|
* Accumulate one additional item into the given stats object.
|
|
*/
|
|
static void
|
|
accumStats(StatsData *stats, bool skipped, double lat, double lag)
|
|
{
|
|
stats->cnt++;
|
|
|
|
if (skipped)
|
|
{
|
|
/* no latency to record on skipped transactions */
|
|
stats->skipped++;
|
|
}
|
|
else
|
|
{
|
|
addToSimpleStats(&stats->latency, lat);
|
|
|
|
/* and possibly the same for schedule lag */
|
|
if (throttle_delay)
|
|
addToSimpleStats(&stats->lag, lag);
|
|
}
|
|
}
|
|
|
|
/* call PQexec() and exit() on failure */
|
|
static void
|
|
executeStatement(PGconn *con, const char *sql)
|
|
{
|
|
PGresult *res;
|
|
|
|
res = PQexec(con, sql);
|
|
if (PQresultStatus(res) != PGRES_COMMAND_OK)
|
|
{
|
|
pg_log_fatal("query failed: %s", PQerrorMessage(con));
|
|
pg_log_info("query was: %s", sql);
|
|
exit(1);
|
|
}
|
|
PQclear(res);
|
|
}
|
|
|
|
/* call PQexec() and complain, but without exiting, on failure */
|
|
static void
|
|
tryExecuteStatement(PGconn *con, const char *sql)
|
|
{
|
|
PGresult *res;
|
|
|
|
res = PQexec(con, sql);
|
|
if (PQresultStatus(res) != PGRES_COMMAND_OK)
|
|
{
|
|
pg_log_error("%s", PQerrorMessage(con));
|
|
pg_log_info("(ignoring this error and continuing anyway)");
|
|
}
|
|
PQclear(res);
|
|
}
|
|
|
|
/* set up a connection to the backend */
|
|
static PGconn *
|
|
doConnect(void)
|
|
{
|
|
PGconn *conn;
|
|
bool new_pass;
|
|
static bool have_password = false;
|
|
static char password[100];
|
|
|
|
/*
|
|
* Start the connection. Loop until we have a password if requested by
|
|
* backend.
|
|
*/
|
|
do
|
|
{
|
|
#define PARAMS_ARRAY_SIZE 7
|
|
|
|
const char *keywords[PARAMS_ARRAY_SIZE];
|
|
const char *values[PARAMS_ARRAY_SIZE];
|
|
|
|
keywords[0] = "host";
|
|
values[0] = pghost;
|
|
keywords[1] = "port";
|
|
values[1] = pgport;
|
|
keywords[2] = "user";
|
|
values[2] = login;
|
|
keywords[3] = "password";
|
|
values[3] = have_password ? password : NULL;
|
|
keywords[4] = "dbname";
|
|
values[4] = dbName;
|
|
keywords[5] = "fallback_application_name";
|
|
values[5] = progname;
|
|
keywords[6] = NULL;
|
|
values[6] = NULL;
|
|
|
|
new_pass = false;
|
|
|
|
conn = PQconnectdbParams(keywords, values, true);
|
|
|
|
if (!conn)
|
|
{
|
|
pg_log_error("connection to database \"%s\" failed", dbName);
|
|
return NULL;
|
|
}
|
|
|
|
if (PQstatus(conn) == CONNECTION_BAD &&
|
|
PQconnectionNeedsPassword(conn) &&
|
|
!have_password)
|
|
{
|
|
PQfinish(conn);
|
|
simple_prompt("Password: ", password, sizeof(password), false);
|
|
have_password = true;
|
|
new_pass = true;
|
|
}
|
|
} while (new_pass);
|
|
|
|
/* check to see that the backend connection was successfully made */
|
|
if (PQstatus(conn) == CONNECTION_BAD)
|
|
{
|
|
pg_log_error("connection to database \"%s\" failed: %s",
|
|
dbName, PQerrorMessage(conn));
|
|
PQfinish(conn);
|
|
return NULL;
|
|
}
|
|
|
|
return conn;
|
|
}
|
|
|
|
/* qsort comparator for Variable array */
|
|
static int
|
|
compareVariableNames(const void *v1, const void *v2)
|
|
{
|
|
return strcmp(((const Variable *) v1)->name,
|
|
((const Variable *) v2)->name);
|
|
}
|
|
|
|
/* Locate a variable by name; returns NULL if unknown */
|
|
static Variable *
|
|
lookupVariable(CState *st, char *name)
|
|
{
|
|
Variable key;
|
|
|
|
/* On some versions of Solaris, bsearch of zero items dumps core */
|
|
if (st->nvariables <= 0)
|
|
return NULL;
|
|
|
|
/* Sort if we have to */
|
|
if (!st->vars_sorted)
|
|
{
|
|
qsort((void *) st->variables, st->nvariables, sizeof(Variable),
|
|
compareVariableNames);
|
|
st->vars_sorted = true;
|
|
}
|
|
|
|
/* Now we can search */
|
|
key.name = name;
|
|
return (Variable *) bsearch((void *) &key,
|
|
(void *) st->variables,
|
|
st->nvariables,
|
|
sizeof(Variable),
|
|
compareVariableNames);
|
|
}
|
|
|
|
/* Get the value of a variable, in string form; returns NULL if unknown */
|
|
static char *
|
|
getVariable(CState *st, char *name)
|
|
{
|
|
Variable *var;
|
|
char stringform[64];
|
|
|
|
var = lookupVariable(st, name);
|
|
if (var == NULL)
|
|
return NULL; /* not found */
|
|
|
|
if (var->svalue)
|
|
return var->svalue; /* we have it in string form */
|
|
|
|
/* We need to produce a string equivalent of the value */
|
|
Assert(var->value.type != PGBT_NO_VALUE);
|
|
if (var->value.type == PGBT_NULL)
|
|
snprintf(stringform, sizeof(stringform), "NULL");
|
|
else if (var->value.type == PGBT_BOOLEAN)
|
|
snprintf(stringform, sizeof(stringform),
|
|
"%s", var->value.u.bval ? "true" : "false");
|
|
else if (var->value.type == PGBT_INT)
|
|
snprintf(stringform, sizeof(stringform),
|
|
INT64_FORMAT, var->value.u.ival);
|
|
else if (var->value.type == PGBT_DOUBLE)
|
|
snprintf(stringform, sizeof(stringform),
|
|
"%.*g", DBL_DIG, var->value.u.dval);
|
|
else /* internal error, unexpected type */
|
|
Assert(0);
|
|
var->svalue = pg_strdup(stringform);
|
|
return var->svalue;
|
|
}
|
|
|
|
/* Try to convert variable to a value; return false on failure */
|
|
static bool
|
|
makeVariableValue(Variable *var)
|
|
{
|
|
size_t slen;
|
|
|
|
if (var->value.type != PGBT_NO_VALUE)
|
|
return true; /* no work */
|
|
|
|
slen = strlen(var->svalue);
|
|
|
|
if (slen == 0)
|
|
/* what should it do on ""? */
|
|
return false;
|
|
|
|
if (pg_strcasecmp(var->svalue, "null") == 0)
|
|
{
|
|
setNullValue(&var->value);
|
|
}
|
|
|
|
/*
|
|
* accept prefixes such as y, ye, n, no... but not for "o". 0/1 are
|
|
* recognized later as an int, which is converted to bool if needed.
|
|
*/
|
|
else if (pg_strncasecmp(var->svalue, "true", slen) == 0 ||
|
|
pg_strncasecmp(var->svalue, "yes", slen) == 0 ||
|
|
pg_strcasecmp(var->svalue, "on") == 0)
|
|
{
|
|
setBoolValue(&var->value, true);
|
|
}
|
|
else if (pg_strncasecmp(var->svalue, "false", slen) == 0 ||
|
|
pg_strncasecmp(var->svalue, "no", slen) == 0 ||
|
|
pg_strcasecmp(var->svalue, "off") == 0 ||
|
|
pg_strcasecmp(var->svalue, "of") == 0)
|
|
{
|
|
setBoolValue(&var->value, false);
|
|
}
|
|
else if (is_an_int(var->svalue))
|
|
{
|
|
/* if it looks like an int, it must be an int without overflow */
|
|
int64 iv;
|
|
|
|
if (!strtoint64(var->svalue, false, &iv))
|
|
return false;
|
|
|
|
setIntValue(&var->value, iv);
|
|
}
|
|
else /* type should be double */
|
|
{
|
|
double dv;
|
|
|
|
if (!strtodouble(var->svalue, true, &dv))
|
|
{
|
|
pg_log_error("malformed variable \"%s\" value: \"%s\"",
|
|
var->name, var->svalue);
|
|
return false;
|
|
}
|
|
setDoubleValue(&var->value, dv);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* Check whether a variable's name is allowed.
|
|
*
|
|
* We allow any non-ASCII character, as well as ASCII letters, digits, and
|
|
* underscore.
|
|
*
|
|
* Keep this in sync with the definitions of variable name characters in
|
|
* "src/fe_utils/psqlscan.l", "src/bin/psql/psqlscanslash.l" and
|
|
* "src/bin/pgbench/exprscan.l". Also see parseVariable(), below.
|
|
*
|
|
* Note: this static function is copied from "src/bin/psql/variables.c"
|
|
*/
|
|
static bool
|
|
valid_variable_name(const char *name)
|
|
{
|
|
const unsigned char *ptr = (const unsigned char *) name;
|
|
|
|
/* Mustn't be zero-length */
|
|
if (*ptr == '\0')
|
|
return false;
|
|
|
|
while (*ptr)
|
|
{
|
|
if (IS_HIGHBIT_SET(*ptr) ||
|
|
strchr("ABCDEFGHIJKLMNOPQRSTUVWXYZ" "abcdefghijklmnopqrstuvwxyz"
|
|
"_0123456789", *ptr) != NULL)
|
|
ptr++;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* Lookup a variable by name, creating it if need be.
|
|
* Caller is expected to assign a value to the variable.
|
|
* Returns NULL on failure (bad name).
|
|
*/
|
|
static Variable *
|
|
lookupCreateVariable(CState *st, const char *context, char *name)
|
|
{
|
|
Variable *var;
|
|
|
|
var = lookupVariable(st, name);
|
|
if (var == NULL)
|
|
{
|
|
Variable *newvars;
|
|
|
|
/*
|
|
* Check for the name only when declaring a new variable to avoid
|
|
* overhead.
|
|
*/
|
|
if (!valid_variable_name(name))
|
|
{
|
|
pg_log_error("%s: invalid variable name: \"%s\"", context, name);
|
|
return NULL;
|
|
}
|
|
|
|
/* Create variable at the end of the array */
|
|
if (st->variables)
|
|
newvars = (Variable *) pg_realloc(st->variables,
|
|
(st->nvariables + 1) * sizeof(Variable));
|
|
else
|
|
newvars = (Variable *) pg_malloc(sizeof(Variable));
|
|
|
|
st->variables = newvars;
|
|
|
|
var = &newvars[st->nvariables];
|
|
|
|
var->name = pg_strdup(name);
|
|
var->svalue = NULL;
|
|
/* caller is expected to initialize remaining fields */
|
|
|
|
st->nvariables++;
|
|
/* we don't re-sort the array till we have to */
|
|
st->vars_sorted = false;
|
|
}
|
|
|
|
return var;
|
|
}
|
|
|
|
/* Assign a string value to a variable, creating it if need be */
|
|
/* Returns false on failure (bad name) */
|
|
static bool
|
|
putVariable(CState *st, const char *context, char *name, const char *value)
|
|
{
|
|
Variable *var;
|
|
char *val;
|
|
|
|
var = lookupCreateVariable(st, context, name);
|
|
if (!var)
|
|
return false;
|
|
|
|
/* dup then free, in case value is pointing at this variable */
|
|
val = pg_strdup(value);
|
|
|
|
if (var->svalue)
|
|
free(var->svalue);
|
|
var->svalue = val;
|
|
var->value.type = PGBT_NO_VALUE;
|
|
|
|
return true;
|
|
}
|
|
|
|
/* Assign a value to a variable, creating it if need be */
|
|
/* Returns false on failure (bad name) */
|
|
static bool
|
|
putVariableValue(CState *st, const char *context, char *name,
|
|
const PgBenchValue *value)
|
|
{
|
|
Variable *var;
|
|
|
|
var = lookupCreateVariable(st, context, name);
|
|
if (!var)
|
|
return false;
|
|
|
|
if (var->svalue)
|
|
free(var->svalue);
|
|
var->svalue = NULL;
|
|
var->value = *value;
|
|
|
|
return true;
|
|
}
|
|
|
|
/* Assign an integer value to a variable, creating it if need be */
|
|
/* Returns false on failure (bad name) */
|
|
static bool
|
|
putVariableInt(CState *st, const char *context, char *name, int64 value)
|
|
{
|
|
PgBenchValue val;
|
|
|
|
setIntValue(&val, value);
|
|
return putVariableValue(st, context, name, &val);
|
|
}
|
|
|
|
/*
|
|
* Parse a possible variable reference (:varname).
|
|
*
|
|
* "sql" points at a colon. If what follows it looks like a valid
|
|
* variable name, return a malloc'd string containing the variable name,
|
|
* and set *eaten to the number of characters consumed.
|
|
* Otherwise, return NULL.
|
|
*/
|
|
static char *
|
|
parseVariable(const char *sql, int *eaten)
|
|
{
|
|
int i = 0;
|
|
char *name;
|
|
|
|
do
|
|
{
|
|
i++;
|
|
} while (IS_HIGHBIT_SET(sql[i]) ||
|
|
strchr("ABCDEFGHIJKLMNOPQRSTUVWXYZ" "abcdefghijklmnopqrstuvwxyz"
|
|
"_0123456789", sql[i]) != NULL);
|
|
if (i == 1)
|
|
return NULL; /* no valid variable name chars */
|
|
|
|
name = pg_malloc(i);
|
|
memcpy(name, &sql[1], i - 1);
|
|
name[i - 1] = '\0';
|
|
|
|
*eaten = i;
|
|
return name;
|
|
}
|
|
|
|
static char *
|
|
replaceVariable(char **sql, char *param, int len, char *value)
|
|
{
|
|
int valueln = strlen(value);
|
|
|
|
if (valueln > len)
|
|
{
|
|
size_t offset = param - *sql;
|
|
|
|
*sql = pg_realloc(*sql, strlen(*sql) - len + valueln + 1);
|
|
param = *sql + offset;
|
|
}
|
|
|
|
if (valueln != len)
|
|
memmove(param + valueln, param + len, strlen(param + len) + 1);
|
|
memcpy(param, value, valueln);
|
|
|
|
return param + valueln;
|
|
}
|
|
|
|
static char *
|
|
assignVariables(CState *st, char *sql)
|
|
{
|
|
char *p,
|
|
*name,
|
|
*val;
|
|
|
|
p = sql;
|
|
while ((p = strchr(p, ':')) != NULL)
|
|
{
|
|
int eaten;
|
|
|
|
name = parseVariable(p, &eaten);
|
|
if (name == NULL)
|
|
{
|
|
while (*p == ':')
|
|
{
|
|
p++;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
val = getVariable(st, name);
|
|
free(name);
|
|
if (val == NULL)
|
|
{
|
|
p++;
|
|
continue;
|
|
}
|
|
|
|
p = replaceVariable(&sql, p, eaten, val);
|
|
}
|
|
|
|
return sql;
|
|
}
|
|
|
|
static void
|
|
getQueryParams(CState *st, const Command *command, const char **params)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < command->argc - 1; i++)
|
|
params[i] = getVariable(st, command->argv[i + 1]);
|
|
}
|
|
|
|
static char *
|
|
valueTypeName(PgBenchValue *pval)
|
|
{
|
|
if (pval->type == PGBT_NO_VALUE)
|
|
return "none";
|
|
else if (pval->type == PGBT_NULL)
|
|
return "null";
|
|
else if (pval->type == PGBT_INT)
|
|
return "int";
|
|
else if (pval->type == PGBT_DOUBLE)
|
|
return "double";
|
|
else if (pval->type == PGBT_BOOLEAN)
|
|
return "boolean";
|
|
else
|
|
{
|
|
/* internal error, should never get there */
|
|
Assert(false);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* get a value as a boolean, or tell if there is a problem */
|
|
static bool
|
|
coerceToBool(PgBenchValue *pval, bool *bval)
|
|
{
|
|
if (pval->type == PGBT_BOOLEAN)
|
|
{
|
|
*bval = pval->u.bval;
|
|
return true;
|
|
}
|
|
else /* NULL, INT or DOUBLE */
|
|
{
|
|
pg_log_error("cannot coerce %s to boolean", valueTypeName(pval));
|
|
*bval = false; /* suppress uninitialized-variable warnings */
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Return true or false from an expression for conditional purposes.
|
|
* Non zero numerical values are true, zero and NULL are false.
|
|
*/
|
|
static bool
|
|
valueTruth(PgBenchValue *pval)
|
|
{
|
|
switch (pval->type)
|
|
{
|
|
case PGBT_NULL:
|
|
return false;
|
|
case PGBT_BOOLEAN:
|
|
return pval->u.bval;
|
|
case PGBT_INT:
|
|
return pval->u.ival != 0;
|
|
case PGBT_DOUBLE:
|
|
return pval->u.dval != 0.0;
|
|
default:
|
|
/* internal error, unexpected type */
|
|
Assert(0);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* get a value as an int, tell if there is a problem */
|
|
static bool
|
|
coerceToInt(PgBenchValue *pval, int64 *ival)
|
|
{
|
|
if (pval->type == PGBT_INT)
|
|
{
|
|
*ival = pval->u.ival;
|
|
return true;
|
|
}
|
|
else if (pval->type == PGBT_DOUBLE)
|
|
{
|
|
double dval = rint(pval->u.dval);
|
|
|
|
if (isnan(dval) || !FLOAT8_FITS_IN_INT64(dval))
|
|
{
|
|
pg_log_error("double to int overflow for %f", dval);
|
|
return false;
|
|
}
|
|
*ival = (int64) dval;
|
|
return true;
|
|
}
|
|
else /* BOOLEAN or NULL */
|
|
{
|
|
pg_log_error("cannot coerce %s to int", valueTypeName(pval));
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* get a value as a double, or tell if there is a problem */
|
|
static bool
|
|
coerceToDouble(PgBenchValue *pval, double *dval)
|
|
{
|
|
if (pval->type == PGBT_DOUBLE)
|
|
{
|
|
*dval = pval->u.dval;
|
|
return true;
|
|
}
|
|
else if (pval->type == PGBT_INT)
|
|
{
|
|
*dval = (double) pval->u.ival;
|
|
return true;
|
|
}
|
|
else /* BOOLEAN or NULL */
|
|
{
|
|
pg_log_error("cannot coerce %s to double", valueTypeName(pval));
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* assign a null value */
|
|
static void
|
|
setNullValue(PgBenchValue *pv)
|
|
{
|
|
pv->type = PGBT_NULL;
|
|
pv->u.ival = 0;
|
|
}
|
|
|
|
/* assign a boolean value */
|
|
static void
|
|
setBoolValue(PgBenchValue *pv, bool bval)
|
|
{
|
|
pv->type = PGBT_BOOLEAN;
|
|
pv->u.bval = bval;
|
|
}
|
|
|
|
/* assign an integer value */
|
|
static void
|
|
setIntValue(PgBenchValue *pv, int64 ival)
|
|
{
|
|
pv->type = PGBT_INT;
|
|
pv->u.ival = ival;
|
|
}
|
|
|
|
/* assign a double value */
|
|
static void
|
|
setDoubleValue(PgBenchValue *pv, double dval)
|
|
{
|
|
pv->type = PGBT_DOUBLE;
|
|
pv->u.dval = dval;
|
|
}
|
|
|
|
static bool
|
|
isLazyFunc(PgBenchFunction func)
|
|
{
|
|
return func == PGBENCH_AND || func == PGBENCH_OR || func == PGBENCH_CASE;
|
|
}
|
|
|
|
/* lazy evaluation of some functions */
|
|
static bool
|
|
evalLazyFunc(CState *st,
|
|
PgBenchFunction func, PgBenchExprLink *args, PgBenchValue *retval)
|
|
{
|
|
PgBenchValue a1,
|
|
a2;
|
|
bool ba1,
|
|
ba2;
|
|
|
|
Assert(isLazyFunc(func) && args != NULL && args->next != NULL);
|
|
|
|
/* args points to first condition */
|
|
if (!evaluateExpr(st, args->expr, &a1))
|
|
return false;
|
|
|
|
/* second condition for AND/OR and corresponding branch for CASE */
|
|
args = args->next;
|
|
|
|
switch (func)
|
|
{
|
|
case PGBENCH_AND:
|
|
if (a1.type == PGBT_NULL)
|
|
{
|
|
setNullValue(retval);
|
|
return true;
|
|
}
|
|
|
|
if (!coerceToBool(&a1, &ba1))
|
|
return false;
|
|
|
|
if (!ba1)
|
|
{
|
|
setBoolValue(retval, false);
|
|
return true;
|
|
}
|
|
|
|
if (!evaluateExpr(st, args->expr, &a2))
|
|
return false;
|
|
|
|
if (a2.type == PGBT_NULL)
|
|
{
|
|
setNullValue(retval);
|
|
return true;
|
|
}
|
|
else if (!coerceToBool(&a2, &ba2))
|
|
return false;
|
|
else
|
|
{
|
|
setBoolValue(retval, ba2);
|
|
return true;
|
|
}
|
|
|
|
return true;
|
|
|
|
case PGBENCH_OR:
|
|
|
|
if (a1.type == PGBT_NULL)
|
|
{
|
|
setNullValue(retval);
|
|
return true;
|
|
}
|
|
|
|
if (!coerceToBool(&a1, &ba1))
|
|
return false;
|
|
|
|
if (ba1)
|
|
{
|
|
setBoolValue(retval, true);
|
|
return true;
|
|
}
|
|
|
|
if (!evaluateExpr(st, args->expr, &a2))
|
|
return false;
|
|
|
|
if (a2.type == PGBT_NULL)
|
|
{
|
|
setNullValue(retval);
|
|
return true;
|
|
}
|
|
else if (!coerceToBool(&a2, &ba2))
|
|
return false;
|
|
else
|
|
{
|
|
setBoolValue(retval, ba2);
|
|
return true;
|
|
}
|
|
|
|
case PGBENCH_CASE:
|
|
/* when true, execute branch */
|
|
if (valueTruth(&a1))
|
|
return evaluateExpr(st, args->expr, retval);
|
|
|
|
/* now args contains next condition or final else expression */
|
|
args = args->next;
|
|
|
|
/* final else case? */
|
|
if (args->next == NULL)
|
|
return evaluateExpr(st, args->expr, retval);
|
|
|
|
/* no, another when, proceed */
|
|
return evalLazyFunc(st, PGBENCH_CASE, args, retval);
|
|
|
|
default:
|
|
/* internal error, cannot get here */
|
|
Assert(0);
|
|
break;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/* maximum number of function arguments */
|
|
#define MAX_FARGS 16
|
|
|
|
/*
|
|
* Recursive evaluation of standard functions,
|
|
* which do not require lazy evaluation.
|
|
*/
|
|
static bool
|
|
evalStandardFunc(CState *st,
|
|
PgBenchFunction func, PgBenchExprLink *args,
|
|
PgBenchValue *retval)
|
|
{
|
|
/* evaluate all function arguments */
|
|
int nargs = 0;
|
|
PgBenchValue vargs[MAX_FARGS];
|
|
PgBenchExprLink *l = args;
|
|
bool has_null = false;
|
|
|
|
for (nargs = 0; nargs < MAX_FARGS && l != NULL; nargs++, l = l->next)
|
|
{
|
|
if (!evaluateExpr(st, l->expr, &vargs[nargs]))
|
|
return false;
|
|
has_null |= vargs[nargs].type == PGBT_NULL;
|
|
}
|
|
|
|
if (l != NULL)
|
|
{
|
|
pg_log_error("too many function arguments, maximum is %d", MAX_FARGS);
|
|
return false;
|
|
}
|
|
|
|
/* NULL arguments */
|
|
if (has_null && func != PGBENCH_IS && func != PGBENCH_DEBUG)
|
|
{
|
|
setNullValue(retval);
|
|
return true;
|
|
}
|
|
|
|
/* then evaluate function */
|
|
switch (func)
|
|
{
|
|
/* overloaded operators */
|
|
case PGBENCH_ADD:
|
|
case PGBENCH_SUB:
|
|
case PGBENCH_MUL:
|
|
case PGBENCH_DIV:
|
|
case PGBENCH_MOD:
|
|
case PGBENCH_EQ:
|
|
case PGBENCH_NE:
|
|
case PGBENCH_LE:
|
|
case PGBENCH_LT:
|
|
{
|
|
PgBenchValue *lval = &vargs[0],
|
|
*rval = &vargs[1];
|
|
|
|
Assert(nargs == 2);
|
|
|
|
/* overloaded type management, double if some double */
|
|
if ((lval->type == PGBT_DOUBLE ||
|
|
rval->type == PGBT_DOUBLE) && func != PGBENCH_MOD)
|
|
{
|
|
double ld,
|
|
rd;
|
|
|
|
if (!coerceToDouble(lval, &ld) ||
|
|
!coerceToDouble(rval, &rd))
|
|
return false;
|
|
|
|
switch (func)
|
|
{
|
|
case PGBENCH_ADD:
|
|
setDoubleValue(retval, ld + rd);
|
|
return true;
|
|
|
|
case PGBENCH_SUB:
|
|
setDoubleValue(retval, ld - rd);
|
|
return true;
|
|
|
|
case PGBENCH_MUL:
|
|
setDoubleValue(retval, ld * rd);
|
|
return true;
|
|
|
|
case PGBENCH_DIV:
|
|
setDoubleValue(retval, ld / rd);
|
|
return true;
|
|
|
|
case PGBENCH_EQ:
|
|
setBoolValue(retval, ld == rd);
|
|
return true;
|
|
|
|
case PGBENCH_NE:
|
|
setBoolValue(retval, ld != rd);
|
|
return true;
|
|
|
|
case PGBENCH_LE:
|
|
setBoolValue(retval, ld <= rd);
|
|
return true;
|
|
|
|
case PGBENCH_LT:
|
|
setBoolValue(retval, ld < rd);
|
|
return true;
|
|
|
|
default:
|
|
/* cannot get here */
|
|
Assert(0);
|
|
}
|
|
}
|
|
else /* we have integer operands, or % */
|
|
{
|
|
int64 li,
|
|
ri,
|
|
res;
|
|
|
|
if (!coerceToInt(lval, &li) ||
|
|
!coerceToInt(rval, &ri))
|
|
return false;
|
|
|
|
switch (func)
|
|
{
|
|
case PGBENCH_ADD:
|
|
if (pg_add_s64_overflow(li, ri, &res))
|
|
{
|
|
pg_log_error("bigint add out of range");
|
|
return false;
|
|
}
|
|
setIntValue(retval, res);
|
|
return true;
|
|
|
|
case PGBENCH_SUB:
|
|
if (pg_sub_s64_overflow(li, ri, &res))
|
|
{
|
|
pg_log_error("bigint sub out of range");
|
|
return false;
|
|
}
|
|
setIntValue(retval, res);
|
|
return true;
|
|
|
|
case PGBENCH_MUL:
|
|
if (pg_mul_s64_overflow(li, ri, &res))
|
|
{
|
|
pg_log_error("bigint mul out of range");
|
|
return false;
|
|
}
|
|
setIntValue(retval, res);
|
|
return true;
|
|
|
|
case PGBENCH_EQ:
|
|
setBoolValue(retval, li == ri);
|
|
return true;
|
|
|
|
case PGBENCH_NE:
|
|
setBoolValue(retval, li != ri);
|
|
return true;
|
|
|
|
case PGBENCH_LE:
|
|
setBoolValue(retval, li <= ri);
|
|
return true;
|
|
|
|
case PGBENCH_LT:
|
|
setBoolValue(retval, li < ri);
|
|
return true;
|
|
|
|
case PGBENCH_DIV:
|
|
case PGBENCH_MOD:
|
|
if (ri == 0)
|
|
{
|
|
pg_log_error("division by zero");
|
|
return false;
|
|
}
|
|
/* special handling of -1 divisor */
|
|
if (ri == -1)
|
|
{
|
|
if (func == PGBENCH_DIV)
|
|
{
|
|
/* overflow check (needed for INT64_MIN) */
|
|
if (li == PG_INT64_MIN)
|
|
{
|
|
pg_log_error("bigint div out of range");
|
|
return false;
|
|
}
|
|
else
|
|
setIntValue(retval, -li);
|
|
}
|
|
else
|
|
setIntValue(retval, 0);
|
|
return true;
|
|
}
|
|
/* else divisor is not -1 */
|
|
if (func == PGBENCH_DIV)
|
|
setIntValue(retval, li / ri);
|
|
else /* func == PGBENCH_MOD */
|
|
setIntValue(retval, li % ri);
|
|
|
|
return true;
|
|
|
|
default:
|
|
/* cannot get here */
|
|
Assert(0);
|
|
}
|
|
}
|
|
|
|
Assert(0);
|
|
return false; /* NOTREACHED */
|
|
}
|
|
|
|
/* integer bitwise operators */
|
|
case PGBENCH_BITAND:
|
|
case PGBENCH_BITOR:
|
|
case PGBENCH_BITXOR:
|
|
case PGBENCH_LSHIFT:
|
|
case PGBENCH_RSHIFT:
|
|
{
|
|
int64 li,
|
|
ri;
|
|
|
|
if (!coerceToInt(&vargs[0], &li) || !coerceToInt(&vargs[1], &ri))
|
|
return false;
|
|
|
|
if (func == PGBENCH_BITAND)
|
|
setIntValue(retval, li & ri);
|
|
else if (func == PGBENCH_BITOR)
|
|
setIntValue(retval, li | ri);
|
|
else if (func == PGBENCH_BITXOR)
|
|
setIntValue(retval, li ^ ri);
|
|
else if (func == PGBENCH_LSHIFT)
|
|
setIntValue(retval, li << ri);
|
|
else if (func == PGBENCH_RSHIFT)
|
|
setIntValue(retval, li >> ri);
|
|
else /* cannot get here */
|
|
Assert(0);
|
|
|
|
return true;
|
|
}
|
|
|
|
/* logical operators */
|
|
case PGBENCH_NOT:
|
|
{
|
|
bool b;
|
|
|
|
if (!coerceToBool(&vargs[0], &b))
|
|
return false;
|
|
|
|
setBoolValue(retval, !b);
|
|
return true;
|
|
}
|
|
|
|
/* no arguments */
|
|
case PGBENCH_PI:
|
|
setDoubleValue(retval, M_PI);
|
|
return true;
|
|
|
|
/* 1 overloaded argument */
|
|
case PGBENCH_ABS:
|
|
{
|
|
PgBenchValue *varg = &vargs[0];
|
|
|
|
Assert(nargs == 1);
|
|
|
|
if (varg->type == PGBT_INT)
|
|
{
|
|
int64 i = varg->u.ival;
|
|
|
|
setIntValue(retval, i < 0 ? -i : i);
|
|
}
|
|
else
|
|
{
|
|
double d = varg->u.dval;
|
|
|
|
Assert(varg->type == PGBT_DOUBLE);
|
|
setDoubleValue(retval, d < 0.0 ? -d : d);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
case PGBENCH_DEBUG:
|
|
{
|
|
PgBenchValue *varg = &vargs[0];
|
|
|
|
Assert(nargs == 1);
|
|
|
|
fprintf(stderr, "debug(script=%d,command=%d): ",
|
|
st->use_file, st->command + 1);
|
|
|
|
if (varg->type == PGBT_NULL)
|
|
fprintf(stderr, "null\n");
|
|
else if (varg->type == PGBT_BOOLEAN)
|
|
fprintf(stderr, "boolean %s\n", varg->u.bval ? "true" : "false");
|
|
else if (varg->type == PGBT_INT)
|
|
fprintf(stderr, "int " INT64_FORMAT "\n", varg->u.ival);
|
|
else if (varg->type == PGBT_DOUBLE)
|
|
fprintf(stderr, "double %.*g\n", DBL_DIG, varg->u.dval);
|
|
else /* internal error, unexpected type */
|
|
Assert(0);
|
|
|
|
*retval = *varg;
|
|
|
|
return true;
|
|
}
|
|
|
|
/* 1 double argument */
|
|
case PGBENCH_DOUBLE:
|
|
case PGBENCH_SQRT:
|
|
case PGBENCH_LN:
|
|
case PGBENCH_EXP:
|
|
{
|
|
double dval;
|
|
|
|
Assert(nargs == 1);
|
|
|
|
if (!coerceToDouble(&vargs[0], &dval))
|
|
return false;
|
|
|
|
if (func == PGBENCH_SQRT)
|
|
dval = sqrt(dval);
|
|
else if (func == PGBENCH_LN)
|
|
dval = log(dval);
|
|
else if (func == PGBENCH_EXP)
|
|
dval = exp(dval);
|
|
/* else is cast: do nothing */
|
|
|
|
setDoubleValue(retval, dval);
|
|
return true;
|
|
}
|
|
|
|
/* 1 int argument */
|
|
case PGBENCH_INT:
|
|
{
|
|
int64 ival;
|
|
|
|
Assert(nargs == 1);
|
|
|
|
if (!coerceToInt(&vargs[0], &ival))
|
|
return false;
|
|
|
|
setIntValue(retval, ival);
|
|
return true;
|
|
}
|
|
|
|
/* variable number of arguments */
|
|
case PGBENCH_LEAST:
|
|
case PGBENCH_GREATEST:
|
|
{
|
|
bool havedouble;
|
|
int i;
|
|
|
|
Assert(nargs >= 1);
|
|
|
|
/* need double result if any input is double */
|
|
havedouble = false;
|
|
for (i = 0; i < nargs; i++)
|
|
{
|
|
if (vargs[i].type == PGBT_DOUBLE)
|
|
{
|
|
havedouble = true;
|
|
break;
|
|
}
|
|
}
|
|
if (havedouble)
|
|
{
|
|
double extremum;
|
|
|
|
if (!coerceToDouble(&vargs[0], &extremum))
|
|
return false;
|
|
for (i = 1; i < nargs; i++)
|
|
{
|
|
double dval;
|
|
|
|
if (!coerceToDouble(&vargs[i], &dval))
|
|
return false;
|
|
if (func == PGBENCH_LEAST)
|
|
extremum = Min(extremum, dval);
|
|
else
|
|
extremum = Max(extremum, dval);
|
|
}
|
|
setDoubleValue(retval, extremum);
|
|
}
|
|
else
|
|
{
|
|
int64 extremum;
|
|
|
|
if (!coerceToInt(&vargs[0], &extremum))
|
|
return false;
|
|
for (i = 1; i < nargs; i++)
|
|
{
|
|
int64 ival;
|
|
|
|
if (!coerceToInt(&vargs[i], &ival))
|
|
return false;
|
|
if (func == PGBENCH_LEAST)
|
|
extremum = Min(extremum, ival);
|
|
else
|
|
extremum = Max(extremum, ival);
|
|
}
|
|
setIntValue(retval, extremum);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/* random functions */
|
|
case PGBENCH_RANDOM:
|
|
case PGBENCH_RANDOM_EXPONENTIAL:
|
|
case PGBENCH_RANDOM_GAUSSIAN:
|
|
case PGBENCH_RANDOM_ZIPFIAN:
|
|
{
|
|
int64 imin,
|
|
imax;
|
|
|
|
Assert(nargs >= 2);
|
|
|
|
if (!coerceToInt(&vargs[0], &imin) ||
|
|
!coerceToInt(&vargs[1], &imax))
|
|
return false;
|
|
|
|
/* check random range */
|
|
if (imin > imax)
|
|
{
|
|
pg_log_error("empty range given to random");
|
|
return false;
|
|
}
|
|
else if (imax - imin < 0 || (imax - imin) + 1 < 0)
|
|
{
|
|
/* prevent int overflows in random functions */
|
|
pg_log_error("random range is too large");
|
|
return false;
|
|
}
|
|
|
|
if (func == PGBENCH_RANDOM)
|
|
{
|
|
Assert(nargs == 2);
|
|
setIntValue(retval, getrand(&st->cs_func_rs, imin, imax));
|
|
}
|
|
else /* gaussian & exponential */
|
|
{
|
|
double param;
|
|
|
|
Assert(nargs == 3);
|
|
|
|
if (!coerceToDouble(&vargs[2], ¶m))
|
|
return false;
|
|
|
|
if (func == PGBENCH_RANDOM_GAUSSIAN)
|
|
{
|
|
if (param < MIN_GAUSSIAN_PARAM)
|
|
{
|
|
pg_log_error("gaussian parameter must be at least %f (not %f)",
|
|
MIN_GAUSSIAN_PARAM, param);
|
|
return false;
|
|
}
|
|
|
|
setIntValue(retval,
|
|
getGaussianRand(&st->cs_func_rs,
|
|
imin, imax, param));
|
|
}
|
|
else if (func == PGBENCH_RANDOM_ZIPFIAN)
|
|
{
|
|
if (param < MIN_ZIPFIAN_PARAM || param > MAX_ZIPFIAN_PARAM)
|
|
{
|
|
pg_log_error("zipfian parameter must be in range [%.3f, %.0f] (not %f)",
|
|
MIN_ZIPFIAN_PARAM, MAX_ZIPFIAN_PARAM, param);
|
|
return false;
|
|
}
|
|
|
|
setIntValue(retval,
|
|
getZipfianRand(&st->cs_func_rs, imin, imax, param));
|
|
}
|
|
else /* exponential */
|
|
{
|
|
if (param <= 0.0)
|
|
{
|
|
pg_log_error("exponential parameter must be greater than zero (not %f)",
|
|
param);
|
|
return false;
|
|
}
|
|
|
|
setIntValue(retval,
|
|
getExponentialRand(&st->cs_func_rs,
|
|
imin, imax, param));
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
case PGBENCH_POW:
|
|
{
|
|
PgBenchValue *lval = &vargs[0];
|
|
PgBenchValue *rval = &vargs[1];
|
|
double ld,
|
|
rd;
|
|
|
|
Assert(nargs == 2);
|
|
|
|
if (!coerceToDouble(lval, &ld) ||
|
|
!coerceToDouble(rval, &rd))
|
|
return false;
|
|
|
|
setDoubleValue(retval, pow(ld, rd));
|
|
|
|
return true;
|
|
}
|
|
|
|
case PGBENCH_IS:
|
|
{
|
|
Assert(nargs == 2);
|
|
|
|
/*
|
|
* note: this simple implementation is more permissive than
|
|
* SQL
|
|
*/
|
|
setBoolValue(retval,
|
|
vargs[0].type == vargs[1].type &&
|
|
vargs[0].u.bval == vargs[1].u.bval);
|
|
return true;
|
|
}
|
|
|
|
/* hashing */
|
|
case PGBENCH_HASH_FNV1A:
|
|
case PGBENCH_HASH_MURMUR2:
|
|
{
|
|
int64 val,
|
|
seed;
|
|
|
|
Assert(nargs == 2);
|
|
|
|
if (!coerceToInt(&vargs[0], &val) ||
|
|
!coerceToInt(&vargs[1], &seed))
|
|
return false;
|
|
|
|
if (func == PGBENCH_HASH_MURMUR2)
|
|
setIntValue(retval, getHashMurmur2(val, seed));
|
|
else if (func == PGBENCH_HASH_FNV1A)
|
|
setIntValue(retval, getHashFnv1a(val, seed));
|
|
else
|
|
/* cannot get here */
|
|
Assert(0);
|
|
|
|
return true;
|
|
}
|
|
|
|
default:
|
|
/* cannot get here */
|
|
Assert(0);
|
|
/* dead code to avoid a compiler warning */
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* evaluate some function */
|
|
static bool
|
|
evalFunc(CState *st,
|
|
PgBenchFunction func, PgBenchExprLink *args, PgBenchValue *retval)
|
|
{
|
|
if (isLazyFunc(func))
|
|
return evalLazyFunc(st, func, args, retval);
|
|
else
|
|
return evalStandardFunc(st, func, args, retval);
|
|
}
|
|
|
|
/*
|
|
* Recursive evaluation of an expression in a pgbench script
|
|
* using the current state of variables.
|
|
* Returns whether the evaluation was ok,
|
|
* the value itself is returned through the retval pointer.
|
|
*/
|
|
static bool
|
|
evaluateExpr(CState *st, PgBenchExpr *expr, PgBenchValue *retval)
|
|
{
|
|
switch (expr->etype)
|
|
{
|
|
case ENODE_CONSTANT:
|
|
{
|
|
*retval = expr->u.constant;
|
|
return true;
|
|
}
|
|
|
|
case ENODE_VARIABLE:
|
|
{
|
|
Variable *var;
|
|
|
|
if ((var = lookupVariable(st, expr->u.variable.varname)) == NULL)
|
|
{
|
|
pg_log_error("undefined variable \"%s\"", expr->u.variable.varname);
|
|
return false;
|
|
}
|
|
|
|
if (!makeVariableValue(var))
|
|
return false;
|
|
|
|
*retval = var->value;
|
|
return true;
|
|
}
|
|
|
|
case ENODE_FUNCTION:
|
|
return evalFunc(st,
|
|
expr->u.function.function,
|
|
expr->u.function.args,
|
|
retval);
|
|
|
|
default:
|
|
/* internal error which should never occur */
|
|
pg_log_fatal("unexpected enode type in evaluation: %d", expr->etype);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Convert command name to meta-command enum identifier
|
|
*/
|
|
static MetaCommand
|
|
getMetaCommand(const char *cmd)
|
|
{
|
|
MetaCommand mc;
|
|
|
|
if (cmd == NULL)
|
|
mc = META_NONE;
|
|
else if (pg_strcasecmp(cmd, "set") == 0)
|
|
mc = META_SET;
|
|
else if (pg_strcasecmp(cmd, "setshell") == 0)
|
|
mc = META_SETSHELL;
|
|
else if (pg_strcasecmp(cmd, "shell") == 0)
|
|
mc = META_SHELL;
|
|
else if (pg_strcasecmp(cmd, "sleep") == 0)
|
|
mc = META_SLEEP;
|
|
else if (pg_strcasecmp(cmd, "if") == 0)
|
|
mc = META_IF;
|
|
else if (pg_strcasecmp(cmd, "elif") == 0)
|
|
mc = META_ELIF;
|
|
else if (pg_strcasecmp(cmd, "else") == 0)
|
|
mc = META_ELSE;
|
|
else if (pg_strcasecmp(cmd, "endif") == 0)
|
|
mc = META_ENDIF;
|
|
else if (pg_strcasecmp(cmd, "gset") == 0)
|
|
mc = META_GSET;
|
|
else
|
|
mc = META_NONE;
|
|
return mc;
|
|
}
|
|
|
|
/*
|
|
* Run a shell command. The result is assigned to the variable if not NULL.
|
|
* Return true if succeeded, or false on error.
|
|
*/
|
|
static bool
|
|
runShellCommand(CState *st, char *variable, char **argv, int argc)
|
|
{
|
|
char command[SHELL_COMMAND_SIZE];
|
|
int i,
|
|
len = 0;
|
|
FILE *fp;
|
|
char res[64];
|
|
char *endptr;
|
|
int retval;
|
|
|
|
/*----------
|
|
* Join arguments with whitespace separators. Arguments starting with
|
|
* exactly one colon are treated as variables:
|
|
* name - append a string "name"
|
|
* :var - append a variable named 'var'
|
|
* ::name - append a string ":name"
|
|
*----------
|
|
*/
|
|
for (i = 0; i < argc; i++)
|
|
{
|
|
char *arg;
|
|
int arglen;
|
|
|
|
if (argv[i][0] != ':')
|
|
{
|
|
arg = argv[i]; /* a string literal */
|
|
}
|
|
else if (argv[i][1] == ':')
|
|
{
|
|
arg = argv[i] + 1; /* a string literal starting with colons */
|
|
}
|
|
else if ((arg = getVariable(st, argv[i] + 1)) == NULL)
|
|
{
|
|
pg_log_error("%s: undefined variable \"%s\"", argv[0], argv[i]);
|
|
return false;
|
|
}
|
|
|
|
arglen = strlen(arg);
|
|
if (len + arglen + (i > 0 ? 1 : 0) >= SHELL_COMMAND_SIZE - 1)
|
|
{
|
|
pg_log_error("%s: shell command is too long", argv[0]);
|
|
return false;
|
|
}
|
|
|
|
if (i > 0)
|
|
command[len++] = ' ';
|
|
memcpy(command + len, arg, arglen);
|
|
len += arglen;
|
|
}
|
|
|
|
command[len] = '\0';
|
|
|
|
/* Fast path for non-assignment case */
|
|
if (variable == NULL)
|
|
{
|
|
if (system(command))
|
|
{
|
|
if (!timer_exceeded)
|
|
pg_log_error("%s: could not launch shell command", argv[0]);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/* Execute the command with pipe and read the standard output. */
|
|
if ((fp = popen(command, "r")) == NULL)
|
|
{
|
|
pg_log_error("%s: could not launch shell command", argv[0]);
|
|
return false;
|
|
}
|
|
if (fgets(res, sizeof(res), fp) == NULL)
|
|
{
|
|
if (!timer_exceeded)
|
|
pg_log_error("%s: could not read result of shell command", argv[0]);
|
|
(void) pclose(fp);
|
|
return false;
|
|
}
|
|
if (pclose(fp) < 0)
|
|
{
|
|
pg_log_error("%s: could not close shell command", argv[0]);
|
|
return false;
|
|
}
|
|
|
|
/* Check whether the result is an integer and assign it to the variable */
|
|
retval = (int) strtol(res, &endptr, 10);
|
|
while (*endptr != '\0' && isspace((unsigned char) *endptr))
|
|
endptr++;
|
|
if (*res == '\0' || *endptr != '\0')
|
|
{
|
|
pg_log_error("%s: shell command must return an integer (not \"%s\")", argv[0], res);
|
|
return false;
|
|
}
|
|
if (!putVariableInt(st, "setshell", variable, retval))
|
|
return false;
|
|
|
|
pg_log_debug("%s: shell parameter name: \"%s\", value: \"%s\"", argv[0], argv[1], res);
|
|
|
|
return true;
|
|
}
|
|
|
|
#define MAX_PREPARE_NAME 32
|
|
static void
|
|
preparedStatementName(char *buffer, int file, int state)
|
|
{
|
|
sprintf(buffer, "P%d_%d", file, state);
|
|
}
|
|
|
|
static void
|
|
commandFailed(CState *st, const char *cmd, const char *message)
|
|
{
|
|
pg_log_error("client %d aborted in command %d (%s) of script %d; %s",
|
|
st->id, st->command, cmd, st->use_file, message);
|
|
}
|
|
|
|
/* return a script number with a weighted choice. */
|
|
static int
|
|
chooseScript(TState *thread)
|
|
{
|
|
int i = 0;
|
|
int64 w;
|
|
|
|
if (num_scripts == 1)
|
|
return 0;
|
|
|
|
w = getrand(&thread->ts_choose_rs, 0, total_weight - 1);
|
|
do
|
|
{
|
|
w -= sql_script[i++].weight;
|
|
} while (w >= 0);
|
|
|
|
return i - 1;
|
|
}
|
|
|
|
/* Send a SQL command, using the chosen querymode */
|
|
static bool
|
|
sendCommand(CState *st, Command *command)
|
|
{
|
|
int r;
|
|
|
|
if (querymode == QUERY_SIMPLE)
|
|
{
|
|
char *sql;
|
|
|
|
sql = pg_strdup(command->argv[0]);
|
|
sql = assignVariables(st, sql);
|
|
|
|
pg_log_debug("client %d sending %s", st->id, sql);
|
|
r = PQsendQuery(st->con, sql);
|
|
free(sql);
|
|
}
|
|
else if (querymode == QUERY_EXTENDED)
|
|
{
|
|
const char *sql = command->argv[0];
|
|
const char *params[MAX_ARGS];
|
|
|
|
getQueryParams(st, command, params);
|
|
|
|
pg_log_debug("client %d sending %s", st->id, sql);
|
|
r = PQsendQueryParams(st->con, sql, command->argc - 1,
|
|
NULL, params, NULL, NULL, 0);
|
|
}
|
|
else if (querymode == QUERY_PREPARED)
|
|
{
|
|
char name[MAX_PREPARE_NAME];
|
|
const char *params[MAX_ARGS];
|
|
|
|
if (!st->prepared[st->use_file])
|
|
{
|
|
int j;
|
|
Command **commands = sql_script[st->use_file].commands;
|
|
|
|
for (j = 0; commands[j] != NULL; j++)
|
|
{
|
|
PGresult *res;
|
|
char name[MAX_PREPARE_NAME];
|
|
|
|
if (commands[j]->type != SQL_COMMAND)
|
|
continue;
|
|
preparedStatementName(name, st->use_file, j);
|
|
res = PQprepare(st->con, name,
|
|
commands[j]->argv[0], commands[j]->argc - 1, NULL);
|
|
if (PQresultStatus(res) != PGRES_COMMAND_OK)
|
|
pg_log_error("%s", PQerrorMessage(st->con));
|
|
PQclear(res);
|
|
}
|
|
st->prepared[st->use_file] = true;
|
|
}
|
|
|
|
getQueryParams(st, command, params);
|
|
preparedStatementName(name, st->use_file, st->command);
|
|
|
|
pg_log_debug("client %d sending %s", st->id, name);
|
|
r = PQsendQueryPrepared(st->con, name, command->argc - 1,
|
|
params, NULL, NULL, 0);
|
|
}
|
|
else /* unknown sql mode */
|
|
r = 0;
|
|
|
|
if (r == 0)
|
|
{
|
|
pg_log_debug("client %d could not send %s", st->id, command->argv[0]);
|
|
st->ecnt++;
|
|
return false;
|
|
}
|
|
else
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* Process query response from the backend.
|
|
*
|
|
* If varprefix is not NULL, it's the variable name prefix where to store
|
|
* the results of the *last* command.
|
|
*
|
|
* Returns true if everything is A-OK, false if any error occurs.
|
|
*/
|
|
static bool
|
|
readCommandResponse(CState *st, char *varprefix)
|
|
{
|
|
PGresult *res;
|
|
PGresult *next_res;
|
|
int qrynum = 0;
|
|
|
|
res = PQgetResult(st->con);
|
|
|
|
while (res != NULL)
|
|
{
|
|
bool is_last;
|
|
|
|
/* peek at the next result to know whether the current is last */
|
|
next_res = PQgetResult(st->con);
|
|
is_last = (next_res == NULL);
|
|
|
|
switch (PQresultStatus(res))
|
|
{
|
|
case PGRES_COMMAND_OK: /* non-SELECT commands */
|
|
case PGRES_EMPTY_QUERY: /* may be used for testing no-op overhead */
|
|
if (is_last && varprefix != NULL)
|
|
{
|
|
pg_log_error("client %d script %d command %d query %d: expected one row, got %d",
|
|
st->id, st->use_file, st->command, qrynum, 0);
|
|
goto error;
|
|
}
|
|
break;
|
|
|
|
case PGRES_TUPLES_OK:
|
|
if (is_last && varprefix != NULL)
|
|
{
|
|
if (PQntuples(res) != 1)
|
|
{
|
|
pg_log_error("client %d script %d command %d query %d: expected one row, got %d",
|
|
st->id, st->use_file, st->command, qrynum, PQntuples(res));
|
|
goto error;
|
|
}
|
|
|
|
/* store results into variables */
|
|
for (int fld = 0; fld < PQnfields(res); fld++)
|
|
{
|
|
char *varname = PQfname(res, fld);
|
|
|
|
/* allocate varname only if necessary, freed below */
|
|
if (*varprefix != '\0')
|
|
varname = psprintf("%s%s", varprefix, varname);
|
|
|
|
/* store result as a string */
|
|
if (!putVariable(st, "gset", varname,
|
|
PQgetvalue(res, 0, fld)))
|
|
{
|
|
/* internal error */
|
|
pg_log_error("client %d script %d command %d query %d: error storing into variable %s",
|
|
st->id, st->use_file, st->command, qrynum, varname);
|
|
goto error;
|
|
}
|
|
|
|
if (*varprefix != '\0')
|
|
pg_free(varname);
|
|
}
|
|
}
|
|
/* otherwise the result is simply thrown away by PQclear below */
|
|
break;
|
|
|
|
default:
|
|
/* anything else is unexpected */
|
|
pg_log_error("client %d script %d aborted in command %d query %d: %s",
|
|
st->id, st->use_file, st->command, qrynum,
|
|
PQerrorMessage(st->con));
|
|
goto error;
|
|
}
|
|
|
|
PQclear(res);
|
|
qrynum++;
|
|
res = next_res;
|
|
}
|
|
|
|
if (qrynum == 0)
|
|
{
|
|
pg_log_error("client %d command %d: no results", st->id, st->command);
|
|
st->ecnt++;
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
|
|
error:
|
|
st->ecnt++;
|
|
PQclear(res);
|
|
PQclear(next_res);
|
|
do
|
|
{
|
|
res = PQgetResult(st->con);
|
|
PQclear(res);
|
|
} while (res);
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Parse the argument to a \sleep command, and return the requested amount
|
|
* of delay, in microseconds. Returns true on success, false on error.
|
|
*/
|
|
static bool
|
|
evaluateSleep(CState *st, int argc, char **argv, int *usecs)
|
|
{
|
|
char *var;
|
|
int usec;
|
|
|
|
if (*argv[1] == ':')
|
|
{
|
|
if ((var = getVariable(st, argv[1] + 1)) == NULL)
|
|
{
|
|
pg_log_error("%s: undefined variable \"%s\"", argv[0], argv[1] + 1);
|
|
return false;
|
|
}
|
|
usec = atoi(var);
|
|
}
|
|
else
|
|
usec = atoi(argv[1]);
|
|
|
|
if (argc > 2)
|
|
{
|
|
if (pg_strcasecmp(argv[2], "ms") == 0)
|
|
usec *= 1000;
|
|
else if (pg_strcasecmp(argv[2], "s") == 0)
|
|
usec *= 1000000;
|
|
}
|
|
else
|
|
usec *= 1000000;
|
|
|
|
*usecs = usec;
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* Advance the state machine of a connection.
|
|
*/
|
|
static void
|
|
advanceConnectionState(TState *thread, CState *st, StatsData *agg)
|
|
{
|
|
instr_time now;
|
|
|
|
/*
|
|
* gettimeofday() isn't free, so we get the current timestamp lazily the
|
|
* first time it's needed, and reuse the same value throughout this
|
|
* function after that. This also ensures that e.g. the calculated
|
|
* latency reported in the log file and in the totals are the same. Zero
|
|
* means "not set yet". Reset "now" when we execute shell commands or
|
|
* expressions, which might take a non-negligible amount of time, though.
|
|
*/
|
|
INSTR_TIME_SET_ZERO(now);
|
|
|
|
/*
|
|
* Loop in the state machine, until we have to wait for a result from the
|
|
* server or have to sleep for throttling or \sleep.
|
|
*
|
|
* Note: In the switch-statement below, 'break' will loop back here,
|
|
* meaning "continue in the state machine". Return is used to return to
|
|
* the caller, giving the thread the opportunity to advance another
|
|
* client.
|
|
*/
|
|
for (;;)
|
|
{
|
|
Command *command;
|
|
|
|
switch (st->state)
|
|
{
|
|
/* Select transaction (script) to run. */
|
|
case CSTATE_CHOOSE_SCRIPT:
|
|
st->use_file = chooseScript(thread);
|
|
Assert(conditional_stack_empty(st->cstack));
|
|
|
|
pg_log_debug("client %d executing script \"%s\"",
|
|
st->id, sql_script[st->use_file].desc);
|
|
|
|
/*
|
|
* If time is over, we're done; otherwise, get ready to start
|
|
* a new transaction, or to get throttled if that's requested.
|
|
*/
|
|
st->state = timer_exceeded ? CSTATE_FINISHED :
|
|
throttle_delay > 0 ? CSTATE_PREPARE_THROTTLE : CSTATE_START_TX;
|
|
break;
|
|
|
|
/* Start new transaction (script) */
|
|
case CSTATE_START_TX:
|
|
|
|
/* establish connection if needed, i.e. under --connect */
|
|
if (st->con == NULL)
|
|
{
|
|
instr_time start;
|
|
|
|
INSTR_TIME_SET_CURRENT_LAZY(now);
|
|
start = now;
|
|
if ((st->con = doConnect()) == NULL)
|
|
{
|
|
pg_log_error("client %d aborted while establishing connection", st->id);
|
|
st->state = CSTATE_ABORTED;
|
|
break;
|
|
}
|
|
INSTR_TIME_SET_CURRENT(now);
|
|
INSTR_TIME_ACCUM_DIFF(thread->conn_time, now, start);
|
|
|
|
/* Reset session-local state */
|
|
memset(st->prepared, 0, sizeof(st->prepared));
|
|
}
|
|
|
|
/* record transaction start time */
|
|
INSTR_TIME_SET_CURRENT_LAZY(now);
|
|
st->txn_begin = now;
|
|
|
|
/*
|
|
* When not throttling, this is also the transaction's
|
|
* scheduled start time.
|
|
*/
|
|
if (!throttle_delay)
|
|
st->txn_scheduled = INSTR_TIME_GET_MICROSEC(now);
|
|
|
|
/* Begin with the first command */
|
|
st->state = CSTATE_START_COMMAND;
|
|
st->command = 0;
|
|
break;
|
|
|
|
/*
|
|
* Handle throttling once per transaction by sleeping.
|
|
*/
|
|
case CSTATE_PREPARE_THROTTLE:
|
|
|
|
/*
|
|
* Generate a delay such that the series of delays will
|
|
* approximate a Poisson distribution centered on the
|
|
* throttle_delay time.
|
|
*
|
|
* If transactions are too slow or a given wait is shorter
|
|
* than a transaction, the next transaction will start right
|
|
* away.
|
|
*/
|
|
Assert(throttle_delay > 0);
|
|
|
|
thread->throttle_trigger +=
|
|
getPoissonRand(&thread->ts_throttle_rs, throttle_delay);
|
|
st->txn_scheduled = thread->throttle_trigger;
|
|
|
|
/*
|
|
* If --latency-limit is used, and this slot is already late
|
|
* so that the transaction will miss the latency limit even if
|
|
* it completed immediately, skip this time slot and schedule
|
|
* to continue running on the next slot that isn't late yet.
|
|
* But don't iterate beyond the -t limit, if one is given.
|
|
*/
|
|
if (latency_limit)
|
|
{
|
|
int64 now_us;
|
|
|
|
INSTR_TIME_SET_CURRENT_LAZY(now);
|
|
now_us = INSTR_TIME_GET_MICROSEC(now);
|
|
|
|
while (thread->throttle_trigger < now_us - latency_limit &&
|
|
(nxacts <= 0 || st->cnt < nxacts))
|
|
{
|
|
processXactStats(thread, st, &now, true, agg);
|
|
/* next rendez-vous */
|
|
thread->throttle_trigger +=
|
|
getPoissonRand(&thread->ts_throttle_rs, throttle_delay);
|
|
st->txn_scheduled = thread->throttle_trigger;
|
|
}
|
|
|
|
/*
|
|
* stop client if -t was exceeded in the previous skip
|
|
* loop
|
|
*/
|
|
if (nxacts > 0 && st->cnt >= nxacts)
|
|
{
|
|
st->state = CSTATE_FINISHED;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* stop client if next transaction is beyond pgbench end of
|
|
* execution; otherwise, throttle it.
|
|
*/
|
|
st->state = end_time > 0 && st->txn_scheduled > end_time ?
|
|
CSTATE_FINISHED : CSTATE_THROTTLE;
|
|
break;
|
|
|
|
/*
|
|
* Wait until it's time to start next transaction.
|
|
*/
|
|
case CSTATE_THROTTLE:
|
|
INSTR_TIME_SET_CURRENT_LAZY(now);
|
|
|
|
if (INSTR_TIME_GET_MICROSEC(now) < st->txn_scheduled)
|
|
return; /* still sleeping, nothing to do here */
|
|
|
|
/* done sleeping, but don't start transaction if we're done */
|
|
st->state = timer_exceeded ? CSTATE_FINISHED : CSTATE_START_TX;
|
|
break;
|
|
|
|
/*
|
|
* Send a command to server (or execute a meta-command)
|
|
*/
|
|
case CSTATE_START_COMMAND:
|
|
command = sql_script[st->use_file].commands[st->command];
|
|
|
|
/* Transition to script end processing if done */
|
|
if (command == NULL)
|
|
{
|
|
st->state = CSTATE_END_TX;
|
|
break;
|
|
}
|
|
|
|
/* record begin time of next command, and initiate it */
|
|
if (report_per_command)
|
|
{
|
|
INSTR_TIME_SET_CURRENT_LAZY(now);
|
|
st->stmt_begin = now;
|
|
}
|
|
|
|
/* Execute the command */
|
|
if (command->type == SQL_COMMAND)
|
|
{
|
|
if (!sendCommand(st, command))
|
|
{
|
|
commandFailed(st, "SQL", "SQL command send failed");
|
|
st->state = CSTATE_ABORTED;
|
|
}
|
|
else
|
|
st->state = CSTATE_WAIT_RESULT;
|
|
}
|
|
else if (command->type == META_COMMAND)
|
|
{
|
|
/*-----
|
|
* Possible state changes when executing meta commands:
|
|
* - on errors CSTATE_ABORTED
|
|
* - on sleep CSTATE_SLEEP
|
|
* - else CSTATE_END_COMMAND
|
|
*/
|
|
st->state = executeMetaCommand(st, &now);
|
|
}
|
|
|
|
/*
|
|
* We're now waiting for an SQL command to complete, or
|
|
* finished processing a metacommand, or need to sleep, or
|
|
* something bad happened.
|
|
*/
|
|
Assert(st->state == CSTATE_WAIT_RESULT ||
|
|
st->state == CSTATE_END_COMMAND ||
|
|
st->state == CSTATE_SLEEP ||
|
|
st->state == CSTATE_ABORTED);
|
|
break;
|
|
|
|
/*
|
|
* non executed conditional branch
|
|
*/
|
|
case CSTATE_SKIP_COMMAND:
|
|
Assert(!conditional_active(st->cstack));
|
|
/* quickly skip commands until something to do... */
|
|
while (true)
|
|
{
|
|
Command *command;
|
|
|
|
command = sql_script[st->use_file].commands[st->command];
|
|
|
|
/* cannot reach end of script in that state */
|
|
Assert(command != NULL);
|
|
|
|
/*
|
|
* if this is conditional related, update conditional
|
|
* state
|
|
*/
|
|
if (command->type == META_COMMAND &&
|
|
(command->meta == META_IF ||
|
|
command->meta == META_ELIF ||
|
|
command->meta == META_ELSE ||
|
|
command->meta == META_ENDIF))
|
|
{
|
|
switch (conditional_stack_peek(st->cstack))
|
|
{
|
|
case IFSTATE_FALSE:
|
|
if (command->meta == META_IF ||
|
|
command->meta == META_ELIF)
|
|
{
|
|
/* we must evaluate the condition */
|
|
st->state = CSTATE_START_COMMAND;
|
|
}
|
|
else if (command->meta == META_ELSE)
|
|
{
|
|
/* we must execute next command */
|
|
conditional_stack_poke(st->cstack,
|
|
IFSTATE_ELSE_TRUE);
|
|
st->state = CSTATE_START_COMMAND;
|
|
st->command++;
|
|
}
|
|
else if (command->meta == META_ENDIF)
|
|
{
|
|
Assert(!conditional_stack_empty(st->cstack));
|
|
conditional_stack_pop(st->cstack);
|
|
if (conditional_active(st->cstack))
|
|
st->state = CSTATE_START_COMMAND;
|
|
|
|
/*
|
|
* else state remains in
|
|
* CSTATE_SKIP_COMMAND
|
|
*/
|
|
st->command++;
|
|
}
|
|
break;
|
|
|
|
case IFSTATE_IGNORED:
|
|
case IFSTATE_ELSE_FALSE:
|
|
if (command->meta == META_IF)
|
|
conditional_stack_push(st->cstack,
|
|
IFSTATE_IGNORED);
|
|
else if (command->meta == META_ENDIF)
|
|
{
|
|
Assert(!conditional_stack_empty(st->cstack));
|
|
conditional_stack_pop(st->cstack);
|
|
if (conditional_active(st->cstack))
|
|
st->state = CSTATE_START_COMMAND;
|
|
}
|
|
/* could detect "else" & "elif" after "else" */
|
|
st->command++;
|
|
break;
|
|
|
|
case IFSTATE_NONE:
|
|
case IFSTATE_TRUE:
|
|
case IFSTATE_ELSE_TRUE:
|
|
default:
|
|
|
|
/*
|
|
* inconsistent if inactive, unreachable dead
|
|
* code
|
|
*/
|
|
Assert(false);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* skip and consider next */
|
|
st->command++;
|
|
}
|
|
|
|
if (st->state != CSTATE_SKIP_COMMAND)
|
|
/* out of quick skip command loop */
|
|
break;
|
|
}
|
|
break;
|
|
|
|
/*
|
|
* Wait for the current SQL command to complete
|
|
*/
|
|
case CSTATE_WAIT_RESULT:
|
|
pg_log_debug("client %d receiving", st->id);
|
|
if (!PQconsumeInput(st->con))
|
|
{
|
|
/* there's something wrong */
|
|
commandFailed(st, "SQL", "perhaps the backend died while processing");
|
|
st->state = CSTATE_ABORTED;
|
|
break;
|
|
}
|
|
if (PQisBusy(st->con))
|
|
return; /* don't have the whole result yet */
|
|
|
|
/* store or discard the query results */
|
|
if (readCommandResponse(st, sql_script[st->use_file].commands[st->command]->varprefix))
|
|
st->state = CSTATE_END_COMMAND;
|
|
else
|
|
st->state = CSTATE_ABORTED;
|
|
break;
|
|
|
|
/*
|
|
* Wait until sleep is done. This state is entered after a
|
|
* \sleep metacommand. The behavior is similar to
|
|
* CSTATE_THROTTLE, but proceeds to CSTATE_START_COMMAND
|
|
* instead of CSTATE_START_TX.
|
|
*/
|
|
case CSTATE_SLEEP:
|
|
INSTR_TIME_SET_CURRENT_LAZY(now);
|
|
if (INSTR_TIME_GET_MICROSEC(now) < st->sleep_until)
|
|
return; /* still sleeping, nothing to do here */
|
|
/* Else done sleeping. */
|
|
st->state = CSTATE_END_COMMAND;
|
|
break;
|
|
|
|
/*
|
|
* End of command: record stats and proceed to next command.
|
|
*/
|
|
case CSTATE_END_COMMAND:
|
|
|
|
/*
|
|
* command completed: accumulate per-command execution times
|
|
* in thread-local data structure, if per-command latencies
|
|
* are requested.
|
|
*/
|
|
if (report_per_command)
|
|
{
|
|
Command *command;
|
|
|
|
INSTR_TIME_SET_CURRENT_LAZY(now);
|
|
|
|
command = sql_script[st->use_file].commands[st->command];
|
|
/* XXX could use a mutex here, but we choose not to */
|
|
addToSimpleStats(&command->stats,
|
|
INSTR_TIME_GET_DOUBLE(now) -
|
|
INSTR_TIME_GET_DOUBLE(st->stmt_begin));
|
|
}
|
|
|
|
/* Go ahead with next command, to be executed or skipped */
|
|
st->command++;
|
|
st->state = conditional_active(st->cstack) ?
|
|
CSTATE_START_COMMAND : CSTATE_SKIP_COMMAND;
|
|
break;
|
|
|
|
/*
|
|
* End of transaction (end of script, really).
|
|
*/
|
|
case CSTATE_END_TX:
|
|
|
|
/* transaction finished: calculate latency and do log */
|
|
processXactStats(thread, st, &now, false, agg);
|
|
|
|
/*
|
|
* missing \endif... cannot happen if CheckConditional was
|
|
* okay
|
|
*/
|
|
Assert(conditional_stack_empty(st->cstack));
|
|
|
|
if (is_connect)
|
|
{
|
|
finishCon(st);
|
|
INSTR_TIME_SET_ZERO(now);
|
|
}
|
|
|
|
if ((st->cnt >= nxacts && duration <= 0) || timer_exceeded)
|
|
{
|
|
/* script completed */
|
|
st->state = CSTATE_FINISHED;
|
|
break;
|
|
}
|
|
|
|
/* next transaction (script) */
|
|
st->state = CSTATE_CHOOSE_SCRIPT;
|
|
|
|
/*
|
|
* Ensure that we always return on this point, so as to avoid
|
|
* an infinite loop if the script only contains meta commands.
|
|
*/
|
|
return;
|
|
|
|
/*
|
|
* Final states. Close the connection if it's still open.
|
|
*/
|
|
case CSTATE_ABORTED:
|
|
case CSTATE_FINISHED:
|
|
finishCon(st);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Subroutine for advanceConnectionState -- initiate or execute the current
|
|
* meta command, and return the next state to set.
|
|
*
|
|
* *now is updated to the current time, unless the command is expected to
|
|
* take no time to execute.
|
|
*/
|
|
static ConnectionStateEnum
|
|
executeMetaCommand(CState *st, instr_time *now)
|
|
{
|
|
Command *command = sql_script[st->use_file].commands[st->command];
|
|
int argc;
|
|
char **argv;
|
|
|
|
Assert(command != NULL && command->type == META_COMMAND);
|
|
|
|
argc = command->argc;
|
|
argv = command->argv;
|
|
|
|
if (unlikely(__pg_log_level <= PG_LOG_DEBUG))
|
|
{
|
|
PQExpBufferData buf;
|
|
|
|
initPQExpBuffer(&buf);
|
|
|
|
printfPQExpBuffer(&buf, "client %d executing \\%s", st->id, argv[0]);
|
|
for (int i = 1; i < argc; i++)
|
|
appendPQExpBuffer(&buf, " %s", argv[i]);
|
|
|
|
pg_log_debug("%s", buf.data);
|
|
|
|
termPQExpBuffer(&buf);
|
|
}
|
|
|
|
if (command->meta == META_SLEEP)
|
|
{
|
|
int usec;
|
|
|
|
/*
|
|
* A \sleep doesn't execute anything, we just get the delay from the
|
|
* argument, and enter the CSTATE_SLEEP state. (The per-command
|
|
* latency will be recorded in CSTATE_SLEEP state, not here, after the
|
|
* delay has elapsed.)
|
|
*/
|
|
if (!evaluateSleep(st, argc, argv, &usec))
|
|
{
|
|
commandFailed(st, "sleep", "execution of meta-command failed");
|
|
return CSTATE_ABORTED;
|
|
}
|
|
|
|
INSTR_TIME_SET_CURRENT_LAZY(*now);
|
|
st->sleep_until = INSTR_TIME_GET_MICROSEC(*now) + usec;
|
|
return CSTATE_SLEEP;
|
|
}
|
|
else if (command->meta == META_SET)
|
|
{
|
|
PgBenchExpr *expr = command->expr;
|
|
PgBenchValue result;
|
|
|
|
if (!evaluateExpr(st, expr, &result))
|
|
{
|
|
commandFailed(st, argv[0], "evaluation of meta-command failed");
|
|
return CSTATE_ABORTED;
|
|
}
|
|
|
|
if (!putVariableValue(st, argv[0], argv[1], &result))
|
|
{
|
|
commandFailed(st, "set", "assignment of meta-command failed");
|
|
return CSTATE_ABORTED;
|
|
}
|
|
}
|
|
else if (command->meta == META_IF)
|
|
{
|
|
/* backslash commands with an expression to evaluate */
|
|
PgBenchExpr *expr = command->expr;
|
|
PgBenchValue result;
|
|
bool cond;
|
|
|
|
if (!evaluateExpr(st, expr, &result))
|
|
{
|
|
commandFailed(st, argv[0], "evaluation of meta-command failed");
|
|
return CSTATE_ABORTED;
|
|
}
|
|
|
|
cond = valueTruth(&result);
|
|
conditional_stack_push(st->cstack, cond ? IFSTATE_TRUE : IFSTATE_FALSE);
|
|
}
|
|
else if (command->meta == META_ELIF)
|
|
{
|
|
/* backslash commands with an expression to evaluate */
|
|
PgBenchExpr *expr = command->expr;
|
|
PgBenchValue result;
|
|
bool cond;
|
|
|
|
if (conditional_stack_peek(st->cstack) == IFSTATE_TRUE)
|
|
{
|
|
/* elif after executed block, skip eval and wait for endif. */
|
|
conditional_stack_poke(st->cstack, IFSTATE_IGNORED);
|
|
return CSTATE_END_COMMAND;
|
|
}
|
|
|
|
if (!evaluateExpr(st, expr, &result))
|
|
{
|
|
commandFailed(st, argv[0], "evaluation of meta-command failed");
|
|
return CSTATE_ABORTED;
|
|
}
|
|
|
|
cond = valueTruth(&result);
|
|
Assert(conditional_stack_peek(st->cstack) == IFSTATE_FALSE);
|
|
conditional_stack_poke(st->cstack, cond ? IFSTATE_TRUE : IFSTATE_FALSE);
|
|
}
|
|
else if (command->meta == META_ELSE)
|
|
{
|
|
switch (conditional_stack_peek(st->cstack))
|
|
{
|
|
case IFSTATE_TRUE:
|
|
conditional_stack_poke(st->cstack, IFSTATE_ELSE_FALSE);
|
|
break;
|
|
case IFSTATE_FALSE: /* inconsistent if active */
|
|
case IFSTATE_IGNORED: /* inconsistent if active */
|
|
case IFSTATE_NONE: /* else without if */
|
|
case IFSTATE_ELSE_TRUE: /* else after else */
|
|
case IFSTATE_ELSE_FALSE: /* else after else */
|
|
default:
|
|
/* dead code if conditional check is ok */
|
|
Assert(false);
|
|
}
|
|
}
|
|
else if (command->meta == META_ENDIF)
|
|
{
|
|
Assert(!conditional_stack_empty(st->cstack));
|
|
conditional_stack_pop(st->cstack);
|
|
}
|
|
else if (command->meta == META_SETSHELL)
|
|
{
|
|
if (!runShellCommand(st, argv[1], argv + 2, argc - 2))
|
|
{
|
|
commandFailed(st, "setshell", "execution of meta-command failed");
|
|
return CSTATE_ABORTED;
|
|
}
|
|
}
|
|
else if (command->meta == META_SHELL)
|
|
{
|
|
if (!runShellCommand(st, NULL, argv + 1, argc - 1))
|
|
{
|
|
commandFailed(st, "shell", "execution of meta-command failed");
|
|
return CSTATE_ABORTED;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* executing the expression or shell command might have taken a
|
|
* non-negligible amount of time, so reset 'now'
|
|
*/
|
|
INSTR_TIME_SET_ZERO(*now);
|
|
|
|
return CSTATE_END_COMMAND;
|
|
}
|
|
|
|
/*
|
|
* Print log entry after completing one transaction.
|
|
*
|
|
* We print Unix-epoch timestamps in the log, so that entries can be
|
|
* correlated against other logs. On some platforms this could be obtained
|
|
* from the instr_time reading the caller has, but rather than get entangled
|
|
* with that, we just eat the cost of an extra syscall in all cases.
|
|
*/
|
|
static void
|
|
doLog(TState *thread, CState *st,
|
|
StatsData *agg, bool skipped, double latency, double lag)
|
|
{
|
|
FILE *logfile = thread->logfile;
|
|
|
|
Assert(use_log);
|
|
|
|
/*
|
|
* Skip the log entry if sampling is enabled and this row doesn't belong
|
|
* to the random sample.
|
|
*/
|
|
if (sample_rate != 0.0 &&
|
|
pg_erand48(thread->ts_sample_rs.xseed) > sample_rate)
|
|
return;
|
|
|
|
/* should we aggregate the results or not? */
|
|
if (agg_interval > 0)
|
|
{
|
|
/*
|
|
* Loop until we reach the interval of the current moment, and print
|
|
* any empty intervals in between (this may happen with very low tps,
|
|
* e.g. --rate=0.1).
|
|
*/
|
|
time_t now = time(NULL);
|
|
|
|
while (agg->start_time + agg_interval <= now)
|
|
{
|
|
/* print aggregated report to logfile */
|
|
fprintf(logfile, "%ld " INT64_FORMAT " %.0f %.0f %.0f %.0f",
|
|
(long) agg->start_time,
|
|
agg->cnt,
|
|
agg->latency.sum,
|
|
agg->latency.sum2,
|
|
agg->latency.min,
|
|
agg->latency.max);
|
|
if (throttle_delay)
|
|
{
|
|
fprintf(logfile, " %.0f %.0f %.0f %.0f",
|
|
agg->lag.sum,
|
|
agg->lag.sum2,
|
|
agg->lag.min,
|
|
agg->lag.max);
|
|
if (latency_limit)
|
|
fprintf(logfile, " " INT64_FORMAT, agg->skipped);
|
|
}
|
|
fputc('\n', logfile);
|
|
|
|
/* reset data and move to next interval */
|
|
initStats(agg, agg->start_time + agg_interval);
|
|
}
|
|
|
|
/* accumulate the current transaction */
|
|
accumStats(agg, skipped, latency, lag);
|
|
}
|
|
else
|
|
{
|
|
/* no, print raw transactions */
|
|
struct timeval tv;
|
|
|
|
gettimeofday(&tv, NULL);
|
|
if (skipped)
|
|
fprintf(logfile, "%d " INT64_FORMAT " skipped %d %ld %ld",
|
|
st->id, st->cnt, st->use_file,
|
|
(long) tv.tv_sec, (long) tv.tv_usec);
|
|
else
|
|
fprintf(logfile, "%d " INT64_FORMAT " %.0f %d %ld %ld",
|
|
st->id, st->cnt, latency, st->use_file,
|
|
(long) tv.tv_sec, (long) tv.tv_usec);
|
|
if (throttle_delay)
|
|
fprintf(logfile, " %.0f", lag);
|
|
fputc('\n', logfile);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Accumulate and report statistics at end of a transaction.
|
|
*
|
|
* (This is also called when a transaction is late and thus skipped.
|
|
* Note that even skipped transactions are counted in the "cnt" fields.)
|
|
*/
|
|
static void
|
|
processXactStats(TState *thread, CState *st, instr_time *now,
|
|
bool skipped, StatsData *agg)
|
|
{
|
|
double latency = 0.0,
|
|
lag = 0.0;
|
|
bool thread_details = progress || throttle_delay || latency_limit,
|
|
detailed = thread_details || use_log || per_script_stats;
|
|
|
|
if (detailed && !skipped)
|
|
{
|
|
INSTR_TIME_SET_CURRENT_LAZY(*now);
|
|
|
|
/* compute latency & lag */
|
|
latency = INSTR_TIME_GET_MICROSEC(*now) - st->txn_scheduled;
|
|
lag = INSTR_TIME_GET_MICROSEC(st->txn_begin) - st->txn_scheduled;
|
|
}
|
|
|
|
if (thread_details)
|
|
{
|
|
/* keep detailed thread stats */
|
|
accumStats(&thread->stats, skipped, latency, lag);
|
|
|
|
/* count transactions over the latency limit, if needed */
|
|
if (latency_limit && latency > latency_limit)
|
|
thread->latency_late++;
|
|
}
|
|
else
|
|
{
|
|
/* no detailed stats, just count */
|
|
thread->stats.cnt++;
|
|
}
|
|
|
|
/* client stat is just counting */
|
|
st->cnt++;
|
|
|
|
if (use_log)
|
|
doLog(thread, st, agg, skipped, latency, lag);
|
|
|
|
/* XXX could use a mutex here, but we choose not to */
|
|
if (per_script_stats)
|
|
accumStats(&sql_script[st->use_file].stats, skipped, latency, lag);
|
|
}
|
|
|
|
|
|
/* discard connections */
|
|
static void
|
|
disconnect_all(CState *state, int length)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < length; i++)
|
|
finishCon(&state[i]);
|
|
}
|
|
|
|
/*
|
|
* Remove old pgbench tables, if any exist
|
|
*/
|
|
static void
|
|
initDropTables(PGconn *con)
|
|
{
|
|
fprintf(stderr, "dropping old tables...\n");
|
|
|
|
/*
|
|
* We drop all the tables in one command, so that whether there are
|
|
* foreign key dependencies or not doesn't matter.
|
|
*/
|
|
executeStatement(con, "drop table if exists "
|
|
"pgbench_accounts, "
|
|
"pgbench_branches, "
|
|
"pgbench_history, "
|
|
"pgbench_tellers");
|
|
}
|
|
|
|
/*
|
|
* Create "pgbench_accounts" partitions if needed.
|
|
*
|
|
* This is the larger table of pgbench default tpc-b like schema
|
|
* with a known size, so we choose to partition it.
|
|
*/
|
|
static void
|
|
createPartitions(PGconn *con)
|
|
{
|
|
char ff[64];
|
|
|
|
ff[0] = '\0';
|
|
|
|
/*
|
|
* Per ddlinfo in initCreateTables, fillfactor is needed on table
|
|
* pgbench_accounts.
|
|
*/
|
|
append_fillfactor(ff, sizeof(ff));
|
|
|
|
/* we must have to create some partitions */
|
|
Assert(partitions > 0);
|
|
|
|
fprintf(stderr, "creating %d partitions...\n", partitions);
|
|
|
|
for (int p = 1; p <= partitions; p++)
|
|
{
|
|
char query[256];
|
|
|
|
if (partition_method == PART_RANGE)
|
|
{
|
|
int64 part_size = (naccounts * (int64) scale + partitions - 1) / partitions;
|
|
char minvalue[32],
|
|
maxvalue[32];
|
|
|
|
/*
|
|
* For RANGE, we use open-ended partitions at the beginning and
|
|
* end to allow any valid value for the primary key. Although the
|
|
* actual minimum and maximum values can be derived from the
|
|
* scale, it is more generic and the performance is better.
|
|
*/
|
|
if (p == 1)
|
|
sprintf(minvalue, "minvalue");
|
|
else
|
|
sprintf(minvalue, INT64_FORMAT, (p - 1) * part_size + 1);
|
|
|
|
if (p < partitions)
|
|
sprintf(maxvalue, INT64_FORMAT, p * part_size + 1);
|
|
else
|
|
sprintf(maxvalue, "maxvalue");
|
|
|
|
snprintf(query, sizeof(query),
|
|
"create%s table pgbench_accounts_%d\n"
|
|
" partition of pgbench_accounts\n"
|
|
" for values from (%s) to (%s)%s\n",
|
|
unlogged_tables ? " unlogged" : "", p,
|
|
minvalue, maxvalue, ff);
|
|
}
|
|
else if (partition_method == PART_HASH)
|
|
snprintf(query, sizeof(query),
|
|
"create%s table pgbench_accounts_%d\n"
|
|
" partition of pgbench_accounts\n"
|
|
" for values with (modulus %d, remainder %d)%s\n",
|
|
unlogged_tables ? " unlogged" : "", p,
|
|
partitions, p - 1, ff);
|
|
else /* cannot get there */
|
|
Assert(0);
|
|
|
|
executeStatement(con, query);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Create pgbench's standard tables
|
|
*/
|
|
static void
|
|
initCreateTables(PGconn *con)
|
|
{
|
|
/*
|
|
* Note: TPC-B requires at least 100 bytes per row, and the "filler"
|
|
* fields in these table declarations were intended to comply with that.
|
|
* The pgbench_accounts table complies with that because the "filler"
|
|
* column is set to blank-padded empty string. But for all other tables
|
|
* the columns default to NULL and so don't actually take any space. We
|
|
* could fix that by giving them non-null default values. However, that
|
|
* would completely break comparability of pgbench results with prior
|
|
* versions. Since pgbench has never pretended to be fully TPC-B compliant
|
|
* anyway, we stick with the historical behavior.
|
|
*/
|
|
struct ddlinfo
|
|
{
|
|
const char *table; /* table name */
|
|
const char *smcols; /* column decls if accountIDs are 32 bits */
|
|
const char *bigcols; /* column decls if accountIDs are 64 bits */
|
|
int declare_fillfactor;
|
|
};
|
|
static const struct ddlinfo DDLs[] = {
|
|
{
|
|
"pgbench_history",
|
|
"tid int,bid int,aid int,delta int,mtime timestamp,filler char(22)",
|
|
"tid int,bid int,aid bigint,delta int,mtime timestamp,filler char(22)",
|
|
0
|
|
},
|
|
{
|
|
"pgbench_tellers",
|
|
"tid int not null,bid int,tbalance int,filler char(84)",
|
|
"tid int not null,bid int,tbalance int,filler char(84)",
|
|
1
|
|
},
|
|
{
|
|
"pgbench_accounts",
|
|
"aid int not null,bid int,abalance int,filler char(84)",
|
|
"aid bigint not null,bid int,abalance int,filler char(84)",
|
|
1
|
|
},
|
|
{
|
|
"pgbench_branches",
|
|
"bid int not null,bbalance int,filler char(88)",
|
|
"bid int not null,bbalance int,filler char(88)",
|
|
1
|
|
}
|
|
};
|
|
int i;
|
|
|
|
fprintf(stderr, "creating tables...\n");
|
|
|
|
for (i = 0; i < lengthof(DDLs); i++)
|
|
{
|
|
char opts[256];
|
|
char buffer[256];
|
|
const struct ddlinfo *ddl = &DDLs[i];
|
|
const char *cols;
|
|
|
|
/* Construct new create table statement. */
|
|
opts[0] = '\0';
|
|
|
|
/* Partition pgbench_accounts table */
|
|
if (partition_method != PART_NONE && strcmp(ddl->table, "pgbench_accounts") == 0)
|
|
snprintf(opts + strlen(opts), sizeof(opts) - strlen(opts),
|
|
" partition by %s (aid)", PARTITION_METHOD[partition_method]);
|
|
else if (ddl->declare_fillfactor)
|
|
/* fillfactor is only expected on actual tables */
|
|
append_fillfactor(opts, sizeof(opts));
|
|
|
|
if (tablespace != NULL)
|
|
{
|
|
char *escape_tablespace;
|
|
|
|
escape_tablespace = PQescapeIdentifier(con, tablespace,
|
|
strlen(tablespace));
|
|
snprintf(opts + strlen(opts), sizeof(opts) - strlen(opts),
|
|
" tablespace %s", escape_tablespace);
|
|
PQfreemem(escape_tablespace);
|
|
}
|
|
|
|
cols = (scale >= SCALE_32BIT_THRESHOLD) ? ddl->bigcols : ddl->smcols;
|
|
|
|
snprintf(buffer, sizeof(buffer), "create%s table %s(%s)%s",
|
|
unlogged_tables ? " unlogged" : "",
|
|
ddl->table, cols, opts);
|
|
|
|
executeStatement(con, buffer);
|
|
}
|
|
|
|
if (partition_method != PART_NONE)
|
|
createPartitions(con);
|
|
}
|
|
|
|
/*
|
|
* add fillfactor percent option.
|
|
*
|
|
* XXX - As default is 100, it could be removed in this case.
|
|
*/
|
|
static void
|
|
append_fillfactor(char *opts, int len)
|
|
{
|
|
snprintf(opts + strlen(opts), len - strlen(opts),
|
|
" with (fillfactor=%d)", fillfactor);
|
|
}
|
|
|
|
/*
|
|
* Truncate away any old data, in one command in case there are foreign keys
|
|
*/
|
|
static void
|
|
initTruncateTables(PGconn *con)
|
|
{
|
|
executeStatement(con, "truncate table "
|
|
"pgbench_accounts, "
|
|
"pgbench_branches, "
|
|
"pgbench_history, "
|
|
"pgbench_tellers");
|
|
}
|
|
|
|
/*
|
|
* Fill the standard tables with some data generated and sent from the client
|
|
*/
|
|
static void
|
|
initGenerateDataClientSide(PGconn *con)
|
|
{
|
|
char sql[256];
|
|
PGresult *res;
|
|
int i;
|
|
int64 k;
|
|
|
|
/* used to track elapsed time and estimate of the remaining time */
|
|
instr_time start,
|
|
diff;
|
|
double elapsed_sec,
|
|
remaining_sec;
|
|
int log_interval = 1;
|
|
|
|
/* Stay on the same line if reporting to a terminal */
|
|
char eol = isatty(fileno(stderr)) ? '\r' : '\n';
|
|
|
|
fprintf(stderr, "generating data (client-side)...\n");
|
|
|
|
/*
|
|
* we do all of this in one transaction to enable the backend's
|
|
* data-loading optimizations
|
|
*/
|
|
executeStatement(con, "begin");
|
|
|
|
/* truncate away any old data */
|
|
initTruncateTables(con);
|
|
|
|
/*
|
|
* fill branches, tellers, accounts in that order in case foreign keys
|
|
* already exist
|
|
*/
|
|
for (i = 0; i < nbranches * scale; i++)
|
|
{
|
|
/* "filler" column defaults to NULL */
|
|
snprintf(sql, sizeof(sql),
|
|
"insert into pgbench_branches(bid,bbalance) values(%d,0)",
|
|
i + 1);
|
|
executeStatement(con, sql);
|
|
}
|
|
|
|
for (i = 0; i < ntellers * scale; i++)
|
|
{
|
|
/* "filler" column defaults to NULL */
|
|
snprintf(sql, sizeof(sql),
|
|
"insert into pgbench_tellers(tid,bid,tbalance) values (%d,%d,0)",
|
|
i + 1, i / ntellers + 1);
|
|
executeStatement(con, sql);
|
|
}
|
|
|
|
/*
|
|
* accounts is big enough to be worth using COPY and tracking runtime
|
|
*/
|
|
res = PQexec(con, "copy pgbench_accounts from stdin");
|
|
if (PQresultStatus(res) != PGRES_COPY_IN)
|
|
{
|
|
pg_log_fatal("unexpected copy in result: %s", PQerrorMessage(con));
|
|
exit(1);
|
|
}
|
|
PQclear(res);
|
|
|
|
INSTR_TIME_SET_CURRENT(start);
|
|
|
|
for (k = 0; k < (int64) naccounts * scale; k++)
|
|
{
|
|
int64 j = k + 1;
|
|
|
|
/* "filler" column defaults to blank padded empty string */
|
|
snprintf(sql, sizeof(sql),
|
|
INT64_FORMAT "\t" INT64_FORMAT "\t%d\t\n",
|
|
j, k / naccounts + 1, 0);
|
|
if (PQputline(con, sql))
|
|
{
|
|
pg_log_fatal("PQputline failed");
|
|
exit(1);
|
|
}
|
|
|
|
if (CancelRequested)
|
|
break;
|
|
|
|
/*
|
|
* If we want to stick with the original logging, print a message each
|
|
* 100k inserted rows.
|
|
*/
|
|
if ((!use_quiet) && (j % 100000 == 0))
|
|
{
|
|
INSTR_TIME_SET_CURRENT(diff);
|
|
INSTR_TIME_SUBTRACT(diff, start);
|
|
|
|
elapsed_sec = INSTR_TIME_GET_DOUBLE(diff);
|
|
remaining_sec = ((double) scale * naccounts - j) * elapsed_sec / j;
|
|
|
|
fprintf(stderr, INT64_FORMAT " of " INT64_FORMAT " tuples (%d%%) done (elapsed %.2f s, remaining %.2f s)%c",
|
|
j, (int64) naccounts * scale,
|
|
(int) (((int64) j * 100) / (naccounts * (int64) scale)),
|
|
elapsed_sec, remaining_sec, eol);
|
|
}
|
|
/* let's not call the timing for each row, but only each 100 rows */
|
|
else if (use_quiet && (j % 100 == 0))
|
|
{
|
|
INSTR_TIME_SET_CURRENT(diff);
|
|
INSTR_TIME_SUBTRACT(diff, start);
|
|
|
|
elapsed_sec = INSTR_TIME_GET_DOUBLE(diff);
|
|
remaining_sec = ((double) scale * naccounts - j) * elapsed_sec / j;
|
|
|
|
/* have we reached the next interval (or end)? */
|
|
if ((j == scale * naccounts) || (elapsed_sec >= log_interval * LOG_STEP_SECONDS))
|
|
{
|
|
fprintf(stderr, INT64_FORMAT " of " INT64_FORMAT " tuples (%d%%) done (elapsed %.2f s, remaining %.2f s)%c",
|
|
j, (int64) naccounts * scale,
|
|
(int) (((int64) j * 100) / (naccounts * (int64) scale)), elapsed_sec, remaining_sec, eol);
|
|
|
|
/* skip to the next interval */
|
|
log_interval = (int) ceil(elapsed_sec / LOG_STEP_SECONDS);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (eol != '\n')
|
|
fputc('\n', stderr); /* Need to move to next line */
|
|
|
|
if (PQputline(con, "\\.\n"))
|
|
{
|
|
pg_log_fatal("very last PQputline failed");
|
|
exit(1);
|
|
}
|
|
if (PQendcopy(con))
|
|
{
|
|
pg_log_fatal("PQendcopy failed");
|
|
exit(1);
|
|
}
|
|
|
|
executeStatement(con, "commit");
|
|
}
|
|
|
|
/*
|
|
* Fill the standard tables with some data generated on the server
|
|
*
|
|
* As already the case with the client-side data generation, the filler
|
|
* column defaults to NULL in pgbench_branches and pgbench_tellers,
|
|
* and is a blank-padded string in pgbench_accounts.
|
|
*/
|
|
static void
|
|
initGenerateDataServerSide(PGconn *con)
|
|
{
|
|
char sql[256];
|
|
|
|
fprintf(stderr, "generating data (server-side)...\n");
|
|
|
|
/*
|
|
* we do all of this in one transaction to enable the backend's
|
|
* data-loading optimizations
|
|
*/
|
|
executeStatement(con, "begin");
|
|
|
|
/* truncate away any old data */
|
|
initTruncateTables(con);
|
|
|
|
snprintf(sql, sizeof(sql),
|
|
"insert into pgbench_branches(bid,bbalance) "
|
|
"select bid, 0 "
|
|
"from generate_series(1, %d) as bid", nbranches * scale);
|
|
executeStatement(con, sql);
|
|
|
|
snprintf(sql, sizeof(sql),
|
|
"insert into pgbench_tellers(tid,bid,tbalance) "
|
|
"select tid, (tid - 1) / %d + 1, 0 "
|
|
"from generate_series(1, %d) as tid", ntellers, ntellers * scale);
|
|
executeStatement(con, sql);
|
|
|
|
snprintf(sql, sizeof(sql),
|
|
"insert into pgbench_accounts(aid,bid,abalance,filler) "
|
|
"select aid, (aid - 1) / %d + 1, 0, '' "
|
|
"from generate_series(1, "INT64_FORMAT") as aid",
|
|
naccounts, (int64) naccounts * scale);
|
|
executeStatement(con, sql);
|
|
|
|
executeStatement(con, "commit");
|
|
}
|
|
|
|
/*
|
|
* Invoke vacuum on the standard tables
|
|
*/
|
|
static void
|
|
initVacuum(PGconn *con)
|
|
{
|
|
fprintf(stderr, "vacuuming...\n");
|
|
executeStatement(con, "vacuum analyze pgbench_branches");
|
|
executeStatement(con, "vacuum analyze pgbench_tellers");
|
|
executeStatement(con, "vacuum analyze pgbench_accounts");
|
|
executeStatement(con, "vacuum analyze pgbench_history");
|
|
}
|
|
|
|
/*
|
|
* Create primary keys on the standard tables
|
|
*/
|
|
static void
|
|
initCreatePKeys(PGconn *con)
|
|
{
|
|
static const char *const DDLINDEXes[] = {
|
|
"alter table pgbench_branches add primary key (bid)",
|
|
"alter table pgbench_tellers add primary key (tid)",
|
|
"alter table pgbench_accounts add primary key (aid)"
|
|
};
|
|
int i;
|
|
|
|
fprintf(stderr, "creating primary keys...\n");
|
|
for (i = 0; i < lengthof(DDLINDEXes); i++)
|
|
{
|
|
char buffer[256];
|
|
|
|
strlcpy(buffer, DDLINDEXes[i], sizeof(buffer));
|
|
|
|
if (index_tablespace != NULL)
|
|
{
|
|
char *escape_tablespace;
|
|
|
|
escape_tablespace = PQescapeIdentifier(con, index_tablespace,
|
|
strlen(index_tablespace));
|
|
snprintf(buffer + strlen(buffer), sizeof(buffer) - strlen(buffer),
|
|
" using index tablespace %s", escape_tablespace);
|
|
PQfreemem(escape_tablespace);
|
|
}
|
|
|
|
executeStatement(con, buffer);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Create foreign key constraints between the standard tables
|
|
*/
|
|
static void
|
|
initCreateFKeys(PGconn *con)
|
|
{
|
|
static const char *const DDLKEYs[] = {
|
|
"alter table pgbench_tellers add constraint pgbench_tellers_bid_fkey foreign key (bid) references pgbench_branches",
|
|
"alter table pgbench_accounts add constraint pgbench_accounts_bid_fkey foreign key (bid) references pgbench_branches",
|
|
"alter table pgbench_history add constraint pgbench_history_bid_fkey foreign key (bid) references pgbench_branches",
|
|
"alter table pgbench_history add constraint pgbench_history_tid_fkey foreign key (tid) references pgbench_tellers",
|
|
"alter table pgbench_history add constraint pgbench_history_aid_fkey foreign key (aid) references pgbench_accounts"
|
|
};
|
|
int i;
|
|
|
|
fprintf(stderr, "creating foreign keys...\n");
|
|
for (i = 0; i < lengthof(DDLKEYs); i++)
|
|
{
|
|
executeStatement(con, DDLKEYs[i]);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Validate an initialization-steps string
|
|
*
|
|
* (We could just leave it to runInitSteps() to fail if there are wrong
|
|
* characters, but since initialization can take awhile, it seems friendlier
|
|
* to check during option parsing.)
|
|
*/
|
|
static void
|
|
checkInitSteps(const char *initialize_steps)
|
|
{
|
|
if (initialize_steps[0] == '\0')
|
|
{
|
|
pg_log_fatal("no initialization steps specified");
|
|
exit(1);
|
|
}
|
|
|
|
for (const char *step = initialize_steps; *step != '\0'; step++)
|
|
{
|
|
if (strchr(ALL_INIT_STEPS " ", *step) == NULL)
|
|
{
|
|
pg_log_fatal("unrecognized initialization step \"%c\"", *step);
|
|
pg_log_info("Allowed step characters are: \"" ALL_INIT_STEPS "\".");
|
|
exit(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Invoke each initialization step in the given string
|
|
*/
|
|
static void
|
|
runInitSteps(const char *initialize_steps)
|
|
{
|
|
PQExpBufferData stats;
|
|
PGconn *con;
|
|
const char *step;
|
|
double run_time = 0.0;
|
|
bool first = true;
|
|
|
|
initPQExpBuffer(&stats);
|
|
|
|
if ((con = doConnect()) == NULL)
|
|
exit(1);
|
|
|
|
setup_cancel_handler(NULL);
|
|
SetCancelConn(con);
|
|
|
|
for (step = initialize_steps; *step != '\0'; step++)
|
|
{
|
|
instr_time start;
|
|
char *op = NULL;
|
|
|
|
INSTR_TIME_SET_CURRENT(start);
|
|
|
|
switch (*step)
|
|
{
|
|
case 'd':
|
|
op = "drop tables";
|
|
initDropTables(con);
|
|
break;
|
|
case 't':
|
|
op = "create tables";
|
|
initCreateTables(con);
|
|
break;
|
|
case 'g':
|
|
op = "client-side generate";
|
|
initGenerateDataClientSide(con);
|
|
break;
|
|
case 'G':
|
|
op = "server-side generate";
|
|
initGenerateDataServerSide(con);
|
|
break;
|
|
case 'v':
|
|
op = "vacuum";
|
|
initVacuum(con);
|
|
break;
|
|
case 'p':
|
|
op = "primary keys";
|
|
initCreatePKeys(con);
|
|
break;
|
|
case 'f':
|
|
op = "foreign keys";
|
|
initCreateFKeys(con);
|
|
break;
|
|
case ' ':
|
|
break; /* ignore */
|
|
default:
|
|
pg_log_fatal("unrecognized initialization step \"%c\"", *step);
|
|
PQfinish(con);
|
|
exit(1);
|
|
}
|
|
|
|
if (op != NULL)
|
|
{
|
|
instr_time diff;
|
|
double elapsed_sec;
|
|
|
|
INSTR_TIME_SET_CURRENT(diff);
|
|
INSTR_TIME_SUBTRACT(diff, start);
|
|
elapsed_sec = INSTR_TIME_GET_DOUBLE(diff);
|
|
|
|
if (!first)
|
|
appendPQExpBufferStr(&stats, ", ");
|
|
else
|
|
first = false;
|
|
|
|
appendPQExpBuffer(&stats, "%s %.2f s", op, elapsed_sec);
|
|
|
|
run_time += elapsed_sec;
|
|
}
|
|
}
|
|
|
|
fprintf(stderr, "done in %.2f s (%s).\n", run_time, stats.data);
|
|
ResetCancelConn();
|
|
PQfinish(con);
|
|
termPQExpBuffer(&stats);
|
|
}
|
|
|
|
/*
|
|
* Extract pgbench table informations into global variables scale,
|
|
* partition_method and partitions.
|
|
*/
|
|
static void
|
|
GetTableInfo(PGconn *con, bool scale_given)
|
|
{
|
|
PGresult *res;
|
|
|
|
/*
|
|
* get the scaling factor that should be same as count(*) from
|
|
* pgbench_branches if this is not a custom query
|
|
*/
|
|
res = PQexec(con, "select count(*) from pgbench_branches");
|
|
if (PQresultStatus(res) != PGRES_TUPLES_OK)
|
|
{
|
|
char *sqlState = PQresultErrorField(res, PG_DIAG_SQLSTATE);
|
|
|
|
pg_log_fatal("could not count number of branches: %s", PQerrorMessage(con));
|
|
|
|
if (sqlState && strcmp(sqlState, ERRCODE_UNDEFINED_TABLE) == 0)
|
|
pg_log_info("Perhaps you need to do initialization (\"pgbench -i\") in database \"%s\"",
|
|
PQdb(con));
|
|
|
|
exit(1);
|
|
}
|
|
scale = atoi(PQgetvalue(res, 0, 0));
|
|
if (scale < 0)
|
|
{
|
|
pg_log_fatal("invalid count(*) from pgbench_branches: \"%s\"",
|
|
PQgetvalue(res, 0, 0));
|
|
exit(1);
|
|
}
|
|
PQclear(res);
|
|
|
|
/* warn if we override user-given -s switch */
|
|
if (scale_given)
|
|
pg_log_warning("scale option ignored, using count from pgbench_branches table (%d)",
|
|
scale);
|
|
|
|
/*
|
|
* Get the partition information for the first "pgbench_accounts" table
|
|
* found in search_path.
|
|
*
|
|
* The result is empty if no "pgbench_accounts" is found.
|
|
*
|
|
* Otherwise, it always returns one row even if the table is not
|
|
* partitioned (in which case the partition strategy is NULL).
|
|
*
|
|
* The number of partitions can be 0 even for partitioned tables, if no
|
|
* partition is attached.
|
|
*
|
|
* We assume no partitioning on any failure, so as to avoid failing on an
|
|
* old version without "pg_partitioned_table".
|
|
*/
|
|
res = PQexec(con,
|
|
"select o.n, p.partstrat, pg_catalog.count(i.inhparent) "
|
|
"from pg_catalog.pg_class as c "
|
|
"join pg_catalog.pg_namespace as n on (n.oid = c.relnamespace) "
|
|
"cross join lateral (select pg_catalog.array_position(pg_catalog.current_schemas(true), n.nspname)) as o(n) "
|
|
"left join pg_catalog.pg_partitioned_table as p on (p.partrelid = c.oid) "
|
|
"left join pg_catalog.pg_inherits as i on (c.oid = i.inhparent) "
|
|
"where c.relname = 'pgbench_accounts' and o.n is not null "
|
|
"group by 1, 2 "
|
|
"order by 1 asc "
|
|
"limit 1");
|
|
|
|
if (PQresultStatus(res) != PGRES_TUPLES_OK)
|
|
{
|
|
/* probably an older version, coldly assume no partitioning */
|
|
partition_method = PART_NONE;
|
|
partitions = 0;
|
|
}
|
|
else if (PQntuples(res) == 0)
|
|
{
|
|
/*
|
|
* This case is unlikely as pgbench already found "pgbench_branches"
|
|
* above to compute the scale.
|
|
*/
|
|
pg_log_fatal("no pgbench_accounts table found in search_path");
|
|
pg_log_info("Perhaps you need to do initialization (\"pgbench -i\") in database \"%s\".", PQdb(con));
|
|
exit(1);
|
|
}
|
|
else /* PQntupes(res) == 1 */
|
|
{
|
|
/* normal case, extract partition information */
|
|
if (PQgetisnull(res, 0, 1))
|
|
partition_method = PART_NONE;
|
|
else
|
|
{
|
|
char *ps = PQgetvalue(res, 0, 1);
|
|
|
|
/* column must be there */
|
|
Assert(ps != NULL);
|
|
|
|
if (strcmp(ps, "r") == 0)
|
|
partition_method = PART_RANGE;
|
|
else if (strcmp(ps, "h") == 0)
|
|
partition_method = PART_HASH;
|
|
else
|
|
{
|
|
/* possibly a newer version with new partition method */
|
|
pg_log_fatal("unexpected partition method: \"%s\"", ps);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
partitions = atoi(PQgetvalue(res, 0, 2));
|
|
}
|
|
|
|
PQclear(res);
|
|
}
|
|
|
|
/*
|
|
* Replace :param with $n throughout the command's SQL text, which
|
|
* is a modifiable string in cmd->lines.
|
|
*/
|
|
static bool
|
|
parseQuery(Command *cmd)
|
|
{
|
|
char *sql,
|
|
*p;
|
|
|
|
cmd->argc = 1;
|
|
|
|
p = sql = pg_strdup(cmd->lines.data);
|
|
while ((p = strchr(p, ':')) != NULL)
|
|
{
|
|
char var[13];
|
|
char *name;
|
|
int eaten;
|
|
|
|
name = parseVariable(p, &eaten);
|
|
if (name == NULL)
|
|
{
|
|
while (*p == ':')
|
|
{
|
|
p++;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* cmd->argv[0] is the SQL statement itself, so the max number of
|
|
* arguments is one less than MAX_ARGS
|
|
*/
|
|
if (cmd->argc >= MAX_ARGS)
|
|
{
|
|
pg_log_error("statement has too many arguments (maximum is %d): %s",
|
|
MAX_ARGS - 1, cmd->lines.data);
|
|
pg_free(name);
|
|
return false;
|
|
}
|
|
|
|
sprintf(var, "$%d", cmd->argc);
|
|
p = replaceVariable(&sql, p, eaten, var);
|
|
|
|
cmd->argv[cmd->argc] = name;
|
|
cmd->argc++;
|
|
}
|
|
|
|
Assert(cmd->argv[0] == NULL);
|
|
cmd->argv[0] = sql;
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* syntax error while parsing a script (in practice, while parsing a
|
|
* backslash command, because we don't detect syntax errors in SQL)
|
|
*
|
|
* source: source of script (filename or builtin-script ID)
|
|
* lineno: line number within script (count from 1)
|
|
* line: whole line of backslash command, if available
|
|
* command: backslash command name, if available
|
|
* msg: the actual error message
|
|
* more: optional extra message
|
|
* column: zero-based column number, or -1 if unknown
|
|
*/
|
|
void
|
|
syntax_error(const char *source, int lineno,
|
|
const char *line, const char *command,
|
|
const char *msg, const char *more, int column)
|
|
{
|
|
PQExpBufferData buf;
|
|
|
|
initPQExpBuffer(&buf);
|
|
|
|
printfPQExpBuffer(&buf, "%s:%d: %s", source, lineno, msg);
|
|
if (more != NULL)
|
|
appendPQExpBuffer(&buf, " (%s)", more);
|
|
if (column >= 0 && line == NULL)
|
|
appendPQExpBuffer(&buf, " at column %d", column + 1);
|
|
if (command != NULL)
|
|
appendPQExpBuffer(&buf, " in command \"%s\"", command);
|
|
|
|
pg_log_fatal("%s", buf.data);
|
|
|
|
termPQExpBuffer(&buf);
|
|
|
|
if (line != NULL)
|
|
{
|
|
fprintf(stderr, "%s\n", line);
|
|
if (column >= 0)
|
|
fprintf(stderr, "%*c error found here\n", column+1, '^');
|
|
}
|
|
|
|
exit(1);
|
|
}
|
|
|
|
/*
|
|
* Return a pointer to the start of the SQL command, after skipping over
|
|
* whitespace and "--" comments.
|
|
* If the end of the string is reached, return NULL.
|
|
*/
|
|
static char *
|
|
skip_sql_comments(char *sql_command)
|
|
{
|
|
char *p = sql_command;
|
|
|
|
/* Skip any leading whitespace, as well as "--" style comments */
|
|
for (;;)
|
|
{
|
|
if (isspace((unsigned char) *p))
|
|
p++;
|
|
else if (strncmp(p, "--", 2) == 0)
|
|
{
|
|
p = strchr(p, '\n');
|
|
if (p == NULL)
|
|
return NULL;
|
|
p++;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
|
|
/* NULL if there's nothing but whitespace and comments */
|
|
if (*p == '\0')
|
|
return NULL;
|
|
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* Parse a SQL command; return a Command struct, or NULL if it's a comment
|
|
*
|
|
* On entry, psqlscan.l has collected the command into "buf", so we don't
|
|
* really need to do much here except check for comments and set up a Command
|
|
* struct.
|
|
*/
|
|
static Command *
|
|
create_sql_command(PQExpBuffer buf, const char *source)
|
|
{
|
|
Command *my_command;
|
|
char *p = skip_sql_comments(buf->data);
|
|
|
|
if (p == NULL)
|
|
return NULL;
|
|
|
|
/* Allocate and initialize Command structure */
|
|
my_command = (Command *) pg_malloc(sizeof(Command));
|
|
initPQExpBuffer(&my_command->lines);
|
|
appendPQExpBufferStr(&my_command->lines, p);
|
|
my_command->first_line = NULL; /* this is set later */
|
|
my_command->type = SQL_COMMAND;
|
|
my_command->meta = META_NONE;
|
|
my_command->argc = 0;
|
|
memset(my_command->argv, 0, sizeof(my_command->argv));
|
|
my_command->varprefix = NULL; /* allocated later, if needed */
|
|
my_command->expr = NULL;
|
|
initSimpleStats(&my_command->stats);
|
|
|
|
return my_command;
|
|
}
|
|
|
|
/* Free a Command structure and associated data */
|
|
static void
|
|
free_command(Command *command)
|
|
{
|
|
termPQExpBuffer(&command->lines);
|
|
if (command->first_line)
|
|
pg_free(command->first_line);
|
|
for (int i = 0; i < command->argc; i++)
|
|
pg_free(command->argv[i]);
|
|
if (command->varprefix)
|
|
pg_free(command->varprefix);
|
|
|
|
/*
|
|
* It should also free expr recursively, but this is currently not needed
|
|
* as only gset commands (which do not have an expression) are freed.
|
|
*/
|
|
pg_free(command);
|
|
}
|
|
|
|
/*
|
|
* Once an SQL command is fully parsed, possibly by accumulating several
|
|
* parts, complete other fields of the Command structure.
|
|
*/
|
|
static void
|
|
postprocess_sql_command(Command *my_command)
|
|
{
|
|
char buffer[128];
|
|
|
|
Assert(my_command->type == SQL_COMMAND);
|
|
|
|
/* Save the first line for error display. */
|
|
strlcpy(buffer, my_command->lines.data, sizeof(buffer));
|
|
buffer[strcspn(buffer, "\n\r")] = '\0';
|
|
my_command->first_line = pg_strdup(buffer);
|
|
|
|
/* parse query if necessary */
|
|
switch (querymode)
|
|
{
|
|
case QUERY_SIMPLE:
|
|
my_command->argv[0] = my_command->lines.data;
|
|
my_command->argc++;
|
|
break;
|
|
case QUERY_EXTENDED:
|
|
case QUERY_PREPARED:
|
|
if (!parseQuery(my_command))
|
|
exit(1);
|
|
break;
|
|
default:
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Parse a backslash command; return a Command struct, or NULL if comment
|
|
*
|
|
* At call, we have scanned only the initial backslash.
|
|
*/
|
|
static Command *
|
|
process_backslash_command(PsqlScanState sstate, const char *source)
|
|
{
|
|
Command *my_command;
|
|
PQExpBufferData word_buf;
|
|
int word_offset;
|
|
int offsets[MAX_ARGS]; /* offsets of argument words */
|
|
int start_offset;
|
|
int lineno;
|
|
int j;
|
|
|
|
initPQExpBuffer(&word_buf);
|
|
|
|
/* Remember location of the backslash */
|
|
start_offset = expr_scanner_offset(sstate) - 1;
|
|
lineno = expr_scanner_get_lineno(sstate, start_offset);
|
|
|
|
/* Collect first word of command */
|
|
if (!expr_lex_one_word(sstate, &word_buf, &word_offset))
|
|
{
|
|
termPQExpBuffer(&word_buf);
|
|
return NULL;
|
|
}
|
|
|
|
/* Allocate and initialize Command structure */
|
|
my_command = (Command *) pg_malloc0(sizeof(Command));
|
|
my_command->type = META_COMMAND;
|
|
my_command->argc = 0;
|
|
initSimpleStats(&my_command->stats);
|
|
|
|
/* Save first word (command name) */
|
|
j = 0;
|
|
offsets[j] = word_offset;
|
|
my_command->argv[j++] = pg_strdup(word_buf.data);
|
|
my_command->argc++;
|
|
|
|
/* ... and convert it to enum form */
|
|
my_command->meta = getMetaCommand(my_command->argv[0]);
|
|
|
|
if (my_command->meta == META_SET ||
|
|
my_command->meta == META_IF ||
|
|
my_command->meta == META_ELIF)
|
|
{
|
|
yyscan_t yyscanner;
|
|
|
|
/* For \set, collect var name */
|
|
if (my_command->meta == META_SET)
|
|
{
|
|
if (!expr_lex_one_word(sstate, &word_buf, &word_offset))
|
|
syntax_error(source, lineno, my_command->first_line, my_command->argv[0],
|
|
"missing argument", NULL, -1);
|
|
|
|
offsets[j] = word_offset;
|
|
my_command->argv[j++] = pg_strdup(word_buf.data);
|
|
my_command->argc++;
|
|
}
|
|
|
|
/* then for all parse the expression */
|
|
yyscanner = expr_scanner_init(sstate, source, lineno, start_offset,
|
|
my_command->argv[0]);
|
|
|
|
if (expr_yyparse(yyscanner) != 0)
|
|
{
|
|
/* dead code: exit done from syntax_error called by yyerror */
|
|
exit(1);
|
|
}
|
|
|
|
my_command->expr = expr_parse_result;
|
|
|
|
/* Save line, trimming any trailing newline */
|
|
my_command->first_line =
|
|
expr_scanner_get_substring(sstate,
|
|
start_offset,
|
|
expr_scanner_offset(sstate),
|
|
true);
|
|
|
|
expr_scanner_finish(yyscanner);
|
|
|
|
termPQExpBuffer(&word_buf);
|
|
|
|
return my_command;
|
|
}
|
|
|
|
/* For all other commands, collect remaining words. */
|
|
while (expr_lex_one_word(sstate, &word_buf, &word_offset))
|
|
{
|
|
/*
|
|
* my_command->argv[0] is the command itself, so the max number of
|
|
* arguments is one less than MAX_ARGS
|
|
*/
|
|
if (j >= MAX_ARGS)
|
|
syntax_error(source, lineno, my_command->first_line, my_command->argv[0],
|
|
"too many arguments", NULL, -1);
|
|
|
|
offsets[j] = word_offset;
|
|
my_command->argv[j++] = pg_strdup(word_buf.data);
|
|
my_command->argc++;
|
|
}
|
|
|
|
/* Save line, trimming any trailing newline */
|
|
my_command->first_line =
|
|
expr_scanner_get_substring(sstate,
|
|
start_offset,
|
|
expr_scanner_offset(sstate),
|
|
true);
|
|
|
|
if (my_command->meta == META_SLEEP)
|
|
{
|
|
if (my_command->argc < 2)
|
|
syntax_error(source, lineno, my_command->first_line, my_command->argv[0],
|
|
"missing argument", NULL, -1);
|
|
|
|
if (my_command->argc > 3)
|
|
syntax_error(source, lineno, my_command->first_line, my_command->argv[0],
|
|
"too many arguments", NULL,
|
|
offsets[3] - start_offset);
|
|
|
|
/*
|
|
* Split argument into number and unit to allow "sleep 1ms" etc. We
|
|
* don't have to terminate the number argument with null because it
|
|
* will be parsed with atoi, which ignores trailing non-digit
|
|
* characters.
|
|
*/
|
|
if (my_command->argc == 2 && my_command->argv[1][0] != ':')
|
|
{
|
|
char *c = my_command->argv[1];
|
|
|
|
while (isdigit((unsigned char) *c))
|
|
c++;
|
|
if (*c)
|
|
{
|
|
my_command->argv[2] = c;
|
|
offsets[2] = offsets[1] + (c - my_command->argv[1]);
|
|
my_command->argc = 3;
|
|
}
|
|
}
|
|
|
|
if (my_command->argc == 3)
|
|
{
|
|
if (pg_strcasecmp(my_command->argv[2], "us") != 0 &&
|
|
pg_strcasecmp(my_command->argv[2], "ms") != 0 &&
|
|
pg_strcasecmp(my_command->argv[2], "s") != 0)
|
|
syntax_error(source, lineno, my_command->first_line, my_command->argv[0],
|
|
"unrecognized time unit, must be us, ms or s",
|
|
my_command->argv[2], offsets[2] - start_offset);
|
|
}
|
|
}
|
|
else if (my_command->meta == META_SETSHELL)
|
|
{
|
|
if (my_command->argc < 3)
|
|
syntax_error(source, lineno, my_command->first_line, my_command->argv[0],
|
|
"missing argument", NULL, -1);
|
|
}
|
|
else if (my_command->meta == META_SHELL)
|
|
{
|
|
if (my_command->argc < 2)
|
|
syntax_error(source, lineno, my_command->first_line, my_command->argv[0],
|
|
"missing command", NULL, -1);
|
|
}
|
|
else if (my_command->meta == META_ELSE || my_command->meta == META_ENDIF)
|
|
{
|
|
if (my_command->argc != 1)
|
|
syntax_error(source, lineno, my_command->first_line, my_command->argv[0],
|
|
"unexpected argument", NULL, -1);
|
|
}
|
|
else if (my_command->meta == META_GSET)
|
|
{
|
|
if (my_command->argc > 2)
|
|
syntax_error(source, lineno, my_command->first_line, my_command->argv[0],
|
|
"too many arguments", NULL, -1);
|
|
}
|
|
else
|
|
{
|
|
/* my_command->meta == META_NONE */
|
|
syntax_error(source, lineno, my_command->first_line, my_command->argv[0],
|
|
"invalid command", NULL, -1);
|
|
}
|
|
|
|
termPQExpBuffer(&word_buf);
|
|
|
|
return my_command;
|
|
}
|
|
|
|
static void
|
|
ConditionError(const char *desc, int cmdn, const char *msg)
|
|
{
|
|
pg_log_fatal("condition error in script \"%s\" command %d: %s",
|
|
desc, cmdn, msg);
|
|
exit(1);
|
|
}
|
|
|
|
/*
|
|
* Partial evaluation of conditionals before recording and running the script.
|
|
*/
|
|
static void
|
|
CheckConditional(ParsedScript ps)
|
|
{
|
|
/* statically check conditional structure */
|
|
ConditionalStack cs = conditional_stack_create();
|
|
int i;
|
|
|
|
for (i = 0; ps.commands[i] != NULL; i++)
|
|
{
|
|
Command *cmd = ps.commands[i];
|
|
|
|
if (cmd->type == META_COMMAND)
|
|
{
|
|
switch (cmd->meta)
|
|
{
|
|
case META_IF:
|
|
conditional_stack_push(cs, IFSTATE_FALSE);
|
|
break;
|
|
case META_ELIF:
|
|
if (conditional_stack_empty(cs))
|
|
ConditionError(ps.desc, i + 1, "\\elif without matching \\if");
|
|
if (conditional_stack_peek(cs) == IFSTATE_ELSE_FALSE)
|
|
ConditionError(ps.desc, i + 1, "\\elif after \\else");
|
|
break;
|
|
case META_ELSE:
|
|
if (conditional_stack_empty(cs))
|
|
ConditionError(ps.desc, i + 1, "\\else without matching \\if");
|
|
if (conditional_stack_peek(cs) == IFSTATE_ELSE_FALSE)
|
|
ConditionError(ps.desc, i + 1, "\\else after \\else");
|
|
conditional_stack_poke(cs, IFSTATE_ELSE_FALSE);
|
|
break;
|
|
case META_ENDIF:
|
|
if (!conditional_stack_pop(cs))
|
|
ConditionError(ps.desc, i + 1, "\\endif without matching \\if");
|
|
break;
|
|
default:
|
|
/* ignore anything else... */
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (!conditional_stack_empty(cs))
|
|
ConditionError(ps.desc, i + 1, "\\if without matching \\endif");
|
|
conditional_stack_destroy(cs);
|
|
}
|
|
|
|
/*
|
|
* Parse a script (either the contents of a file, or a built-in script)
|
|
* and add it to the list of scripts.
|
|
*/
|
|
static void
|
|
ParseScript(const char *script, const char *desc, int weight)
|
|
{
|
|
ParsedScript ps;
|
|
PsqlScanState sstate;
|
|
PQExpBufferData line_buf;
|
|
int alloc_num;
|
|
int index;
|
|
int lineno;
|
|
int start_offset;
|
|
|
|
#define COMMANDS_ALLOC_NUM 128
|
|
alloc_num = COMMANDS_ALLOC_NUM;
|
|
|
|
/* Initialize all fields of ps */
|
|
ps.desc = desc;
|
|
ps.weight = weight;
|
|
ps.commands = (Command **) pg_malloc(sizeof(Command *) * alloc_num);
|
|
initStats(&ps.stats, 0);
|
|
|
|
/* Prepare to parse script */
|
|
sstate = psql_scan_create(&pgbench_callbacks);
|
|
|
|
/*
|
|
* Ideally, we'd scan scripts using the encoding and stdstrings settings
|
|
* we get from a DB connection. However, without major rearrangement of
|
|
* pgbench's argument parsing, we can't have a DB connection at the time
|
|
* we parse scripts. Using SQL_ASCII (encoding 0) should work well enough
|
|
* with any backend-safe encoding, though conceivably we could be fooled
|
|
* if a script file uses a client-only encoding. We also assume that
|
|
* stdstrings should be true, which is a bit riskier.
|
|
*/
|
|
psql_scan_setup(sstate, script, strlen(script), 0, true);
|
|
start_offset = expr_scanner_offset(sstate) - 1;
|
|
|
|
initPQExpBuffer(&line_buf);
|
|
|
|
index = 0;
|
|
|
|
for (;;)
|
|
{
|
|
PsqlScanResult sr;
|
|
promptStatus_t prompt;
|
|
Command *command = NULL;
|
|
|
|
resetPQExpBuffer(&line_buf);
|
|
lineno = expr_scanner_get_lineno(sstate, start_offset);
|
|
|
|
sr = psql_scan(sstate, &line_buf, &prompt);
|
|
|
|
/* If we collected a new SQL command, process that */
|
|
command = create_sql_command(&line_buf, desc);
|
|
|
|
/* store new command */
|
|
if (command)
|
|
ps.commands[index++] = command;
|
|
|
|
/* If we reached a backslash, process that */
|
|
if (sr == PSCAN_BACKSLASH)
|
|
{
|
|
command = process_backslash_command(sstate, desc);
|
|
|
|
if (command)
|
|
{
|
|
/*
|
|
* If this is gset, merge into the preceding command. (We
|
|
* don't use a command slot in this case).
|
|
*/
|
|
if (command->meta == META_GSET)
|
|
{
|
|
Command *cmd;
|
|
|
|
if (index == 0)
|
|
syntax_error(desc, lineno, NULL, NULL,
|
|
"\\gset must follow a SQL command",
|
|
NULL, -1);
|
|
|
|
cmd = ps.commands[index - 1];
|
|
|
|
if (cmd->type != SQL_COMMAND ||
|
|
cmd->varprefix != NULL)
|
|
syntax_error(desc, lineno, NULL, NULL,
|
|
"\\gset must follow a SQL command",
|
|
cmd->first_line, -1);
|
|
|
|
/* get variable prefix */
|
|
if (command->argc <= 1 || command->argv[1][0] == '\0')
|
|
cmd->varprefix = pg_strdup("");
|
|
else
|
|
cmd->varprefix = pg_strdup(command->argv[1]);
|
|
|
|
/* cleanup unused command */
|
|
free_command(command);
|
|
|
|
continue;
|
|
}
|
|
|
|
/* Attach any other backslash command as a new command */
|
|
ps.commands[index++] = command;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Since we used a command slot, allocate more if needed. Note we
|
|
* always allocate one more in order to accommodate the NULL
|
|
* terminator below.
|
|
*/
|
|
if (index >= alloc_num)
|
|
{
|
|
alloc_num += COMMANDS_ALLOC_NUM;
|
|
ps.commands = (Command **)
|
|
pg_realloc(ps.commands, sizeof(Command *) * alloc_num);
|
|
}
|
|
|
|
/* Done if we reached EOF */
|
|
if (sr == PSCAN_INCOMPLETE || sr == PSCAN_EOL)
|
|
break;
|
|
}
|
|
|
|
ps.commands[index] = NULL;
|
|
|
|
addScript(ps);
|
|
|
|
termPQExpBuffer(&line_buf);
|
|
psql_scan_finish(sstate);
|
|
psql_scan_destroy(sstate);
|
|
}
|
|
|
|
/*
|
|
* Read the entire contents of file fd, and return it in a malloc'd buffer.
|
|
*
|
|
* The buffer will typically be larger than necessary, but we don't care
|
|
* in this program, because we'll free it as soon as we've parsed the script.
|
|
*/
|
|
static char *
|
|
read_file_contents(FILE *fd)
|
|
{
|
|
char *buf;
|
|
size_t buflen = BUFSIZ;
|
|
size_t used = 0;
|
|
|
|
buf = (char *) pg_malloc(buflen);
|
|
|
|
for (;;)
|
|
{
|
|
size_t nread;
|
|
|
|
nread = fread(buf + used, 1, BUFSIZ, fd);
|
|
used += nread;
|
|
/* If fread() read less than requested, must be EOF or error */
|
|
if (nread < BUFSIZ)
|
|
break;
|
|
/* Enlarge buf so we can read some more */
|
|
buflen += BUFSIZ;
|
|
buf = (char *) pg_realloc(buf, buflen);
|
|
}
|
|
/* There is surely room for a terminator */
|
|
buf[used] = '\0';
|
|
|
|
return buf;
|
|
}
|
|
|
|
/*
|
|
* Given a file name, read it and add its script to the list.
|
|
* "-" means to read stdin.
|
|
* NB: filename must be storage that won't disappear.
|
|
*/
|
|
static void
|
|
process_file(const char *filename, int weight)
|
|
{
|
|
FILE *fd;
|
|
char *buf;
|
|
|
|
/* Slurp the file contents into "buf" */
|
|
if (strcmp(filename, "-") == 0)
|
|
fd = stdin;
|
|
else if ((fd = fopen(filename, "r")) == NULL)
|
|
{
|
|
pg_log_fatal("could not open file \"%s\": %m", filename);
|
|
exit(1);
|
|
}
|
|
|
|
buf = read_file_contents(fd);
|
|
|
|
if (ferror(fd))
|
|
{
|
|
pg_log_fatal("could not read file \"%s\": %m", filename);
|
|
exit(1);
|
|
}
|
|
|
|
if (fd != stdin)
|
|
fclose(fd);
|
|
|
|
ParseScript(buf, filename, weight);
|
|
|
|
free(buf);
|
|
}
|
|
|
|
/* Parse the given builtin script and add it to the list. */
|
|
static void
|
|
process_builtin(const BuiltinScript *bi, int weight)
|
|
{
|
|
ParseScript(bi->script, bi->desc, weight);
|
|
}
|
|
|
|
/* show available builtin scripts */
|
|
static void
|
|
listAvailableScripts(void)
|
|
{
|
|
int i;
|
|
|
|
fprintf(stderr, "Available builtin scripts:\n");
|
|
for (i = 0; i < lengthof(builtin_script); i++)
|
|
fprintf(stderr, " %13s: %s\n", builtin_script[i].name, builtin_script[i].desc);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
/* return builtin script "name" if unambiguous, fails if not found */
|
|
static const BuiltinScript *
|
|
findBuiltin(const char *name)
|
|
{
|
|
int i,
|
|
found = 0,
|
|
len = strlen(name);
|
|
const BuiltinScript *result = NULL;
|
|
|
|
for (i = 0; i < lengthof(builtin_script); i++)
|
|
{
|
|
if (strncmp(builtin_script[i].name, name, len) == 0)
|
|
{
|
|
result = &builtin_script[i];
|
|
found++;
|
|
}
|
|
}
|
|
|
|
/* ok, unambiguous result */
|
|
if (found == 1)
|
|
return result;
|
|
|
|
/* error cases */
|
|
if (found == 0)
|
|
pg_log_fatal("no builtin script found for name \"%s\"", name);
|
|
else /* found > 1 */
|
|
pg_log_fatal("ambiguous builtin name: %d builtin scripts found for prefix \"%s\"", found, name);
|
|
|
|
listAvailableScripts();
|
|
exit(1);
|
|
}
|
|
|
|
/*
|
|
* Determine the weight specification from a script option (-b, -f), if any,
|
|
* and return it as an integer (1 is returned if there's no weight). The
|
|
* script name is returned in *script as a malloc'd string.
|
|
*/
|
|
static int
|
|
parseScriptWeight(const char *option, char **script)
|
|
{
|
|
char *sep;
|
|
int weight;
|
|
|
|
if ((sep = strrchr(option, WSEP)))
|
|
{
|
|
int namelen = sep - option;
|
|
long wtmp;
|
|
char *badp;
|
|
|
|
/* generate the script name */
|
|
*script = pg_malloc(namelen + 1);
|
|
strncpy(*script, option, namelen);
|
|
(*script)[namelen] = '\0';
|
|
|
|
/* process digits of the weight spec */
|
|
errno = 0;
|
|
wtmp = strtol(sep + 1, &badp, 10);
|
|
if (errno != 0 || badp == sep + 1 || *badp != '\0')
|
|
{
|
|
pg_log_fatal("invalid weight specification: %s", sep);
|
|
exit(1);
|
|
}
|
|
if (wtmp > INT_MAX || wtmp < 0)
|
|
{
|
|
pg_log_fatal("weight specification out of range (0 .. %u): " INT64_FORMAT,
|
|
INT_MAX, (int64) wtmp);
|
|
exit(1);
|
|
}
|
|
weight = wtmp;
|
|
}
|
|
else
|
|
{
|
|
*script = pg_strdup(option);
|
|
weight = 1;
|
|
}
|
|
|
|
return weight;
|
|
}
|
|
|
|
/* append a script to the list of scripts to process */
|
|
static void
|
|
addScript(ParsedScript script)
|
|
{
|
|
if (script.commands == NULL || script.commands[0] == NULL)
|
|
{
|
|
pg_log_fatal("empty command list for script \"%s\"", script.desc);
|
|
exit(1);
|
|
}
|
|
|
|
if (num_scripts >= MAX_SCRIPTS)
|
|
{
|
|
pg_log_fatal("at most %d SQL scripts are allowed", MAX_SCRIPTS);
|
|
exit(1);
|
|
}
|
|
|
|
CheckConditional(script);
|
|
|
|
sql_script[num_scripts] = script;
|
|
num_scripts++;
|
|
}
|
|
|
|
/*
|
|
* Print progress report.
|
|
*
|
|
* On entry, *last and *last_report contain the statistics and time of last
|
|
* progress report. On exit, they are updated with the new stats.
|
|
*/
|
|
static void
|
|
printProgressReport(TState *threads, int64 test_start, int64 now,
|
|
StatsData *last, int64 *last_report)
|
|
{
|
|
/* generate and show report */
|
|
int64 run = now - *last_report,
|
|
ntx;
|
|
double tps,
|
|
total_run,
|
|
latency,
|
|
sqlat,
|
|
lag,
|
|
stdev;
|
|
char tbuf[315];
|
|
StatsData cur;
|
|
|
|
/*
|
|
* Add up the statistics of all threads.
|
|
*
|
|
* XXX: No locking. There is no guarantee that we get an atomic snapshot
|
|
* of the transaction count and latencies, so these figures can well be
|
|
* off by a small amount. The progress report's purpose is to give a
|
|
* quick overview of how the test is going, so that shouldn't matter too
|
|
* much. (If a read from a 64-bit integer is not atomic, you might get a
|
|
* "torn" read and completely bogus latencies though!)
|
|
*/
|
|
initStats(&cur, 0);
|
|
for (int i = 0; i < nthreads; i++)
|
|
{
|
|
mergeSimpleStats(&cur.latency, &threads[i].stats.latency);
|
|
mergeSimpleStats(&cur.lag, &threads[i].stats.lag);
|
|
cur.cnt += threads[i].stats.cnt;
|
|
cur.skipped += threads[i].stats.skipped;
|
|
}
|
|
|
|
/* we count only actually executed transactions */
|
|
ntx = (cur.cnt - cur.skipped) - (last->cnt - last->skipped);
|
|
total_run = (now - test_start) / 1000000.0;
|
|
tps = 1000000.0 * ntx / run;
|
|
if (ntx > 0)
|
|
{
|
|
latency = 0.001 * (cur.latency.sum - last->latency.sum) / ntx;
|
|
sqlat = 1.0 * (cur.latency.sum2 - last->latency.sum2) / ntx;
|
|
stdev = 0.001 * sqrt(sqlat - 1000000.0 * latency * latency);
|
|
lag = 0.001 * (cur.lag.sum - last->lag.sum) / ntx;
|
|
}
|
|
else
|
|
{
|
|
latency = sqlat = stdev = lag = 0;
|
|
}
|
|
|
|
if (progress_timestamp)
|
|
{
|
|
/*
|
|
* On some platforms the current system timestamp is available in
|
|
* now_time, but rather than get entangled with that, we just eat the
|
|
* cost of an extra syscall in all cases.
|
|
*/
|
|
struct timeval tv;
|
|
|
|
gettimeofday(&tv, NULL);
|
|
snprintf(tbuf, sizeof(tbuf), "%ld.%03ld s",
|
|
(long) tv.tv_sec, (long) (tv.tv_usec / 1000));
|
|
}
|
|
else
|
|
{
|
|
/* round seconds are expected, but the thread may be late */
|
|
snprintf(tbuf, sizeof(tbuf), "%.1f s", total_run);
|
|
}
|
|
|
|
fprintf(stderr,
|
|
"progress: %s, %.1f tps, lat %.3f ms stddev %.3f",
|
|
tbuf, tps, latency, stdev);
|
|
|
|
if (throttle_delay)
|
|
{
|
|
fprintf(stderr, ", lag %.3f ms", lag);
|
|
if (latency_limit)
|
|
fprintf(stderr, ", " INT64_FORMAT " skipped",
|
|
cur.skipped - last->skipped);
|
|
}
|
|
fprintf(stderr, "\n");
|
|
|
|
*last = cur;
|
|
*last_report = now;
|
|
}
|
|
|
|
static void
|
|
printSimpleStats(const char *prefix, SimpleStats *ss)
|
|
{
|
|
if (ss->count > 0)
|
|
{
|
|
double latency = ss->sum / ss->count;
|
|
double stddev = sqrt(ss->sum2 / ss->count - latency * latency);
|
|
|
|
printf("%s average = %.3f ms\n", prefix, 0.001 * latency);
|
|
printf("%s stddev = %.3f ms\n", prefix, 0.001 * stddev);
|
|
}
|
|
}
|
|
|
|
/* print out results */
|
|
static void
|
|
printResults(StatsData *total, instr_time total_time,
|
|
instr_time conn_total_time, int64 latency_late)
|
|
{
|
|
double time_include,
|
|
tps_include,
|
|
tps_exclude;
|
|
int64 ntx = total->cnt - total->skipped;
|
|
|
|
time_include = INSTR_TIME_GET_DOUBLE(total_time);
|
|
|
|
/* tps is about actually executed transactions */
|
|
tps_include = ntx / time_include;
|
|
tps_exclude = ntx /
|
|
(time_include - (INSTR_TIME_GET_DOUBLE(conn_total_time) / nclients));
|
|
|
|
/* Report test parameters. */
|
|
printf("transaction type: %s\n",
|
|
num_scripts == 1 ? sql_script[0].desc : "multiple scripts");
|
|
printf("scaling factor: %d\n", scale);
|
|
/* only print partitioning information if some partitioning was detected */
|
|
if (partition_method != PART_NONE)
|
|
printf("partition method: %s\npartitions: %d\n",
|
|
PARTITION_METHOD[partition_method], partitions);
|
|
printf("query mode: %s\n", QUERYMODE[querymode]);
|
|
printf("number of clients: %d\n", nclients);
|
|
printf("number of threads: %d\n", nthreads);
|
|
if (duration <= 0)
|
|
{
|
|
printf("number of transactions per client: %d\n", nxacts);
|
|
printf("number of transactions actually processed: " INT64_FORMAT "/%d\n",
|
|
ntx, nxacts * nclients);
|
|
}
|
|
else
|
|
{
|
|
printf("duration: %d s\n", duration);
|
|
printf("number of transactions actually processed: " INT64_FORMAT "\n",
|
|
ntx);
|
|
}
|
|
|
|
/* Remaining stats are nonsensical if we failed to execute any xacts */
|
|
if (total->cnt <= 0)
|
|
return;
|
|
|
|
if (throttle_delay && latency_limit)
|
|
printf("number of transactions skipped: " INT64_FORMAT " (%.3f %%)\n",
|
|
total->skipped,
|
|
100.0 * total->skipped / total->cnt);
|
|
|
|
if (latency_limit)
|
|
printf("number of transactions above the %.1f ms latency limit: " INT64_FORMAT "/" INT64_FORMAT " (%.3f %%)\n",
|
|
latency_limit / 1000.0, latency_late, ntx,
|
|
(ntx > 0) ? 100.0 * latency_late / ntx : 0.0);
|
|
|
|
if (throttle_delay || progress || latency_limit)
|
|
printSimpleStats("latency", &total->latency);
|
|
else
|
|
{
|
|
/* no measurement, show average latency computed from run time */
|
|
printf("latency average = %.3f ms\n",
|
|
1000.0 * time_include * nclients / total->cnt);
|
|
}
|
|
|
|
if (throttle_delay)
|
|
{
|
|
/*
|
|
* Report average transaction lag under rate limit throttling. This
|
|
* is the delay between scheduled and actual start times for the
|
|
* transaction. The measured lag may be caused by thread/client load,
|
|
* the database load, or the Poisson throttling process.
|
|
*/
|
|
printf("rate limit schedule lag: avg %.3f (max %.3f) ms\n",
|
|
0.001 * total->lag.sum / total->cnt, 0.001 * total->lag.max);
|
|
}
|
|
|
|
printf("tps = %f (including connections establishing)\n", tps_include);
|
|
printf("tps = %f (excluding connections establishing)\n", tps_exclude);
|
|
|
|
/* Report per-script/command statistics */
|
|
if (per_script_stats || report_per_command)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < num_scripts; i++)
|
|
{
|
|
if (per_script_stats)
|
|
{
|
|
StatsData *sstats = &sql_script[i].stats;
|
|
|
|
printf("SQL script %d: %s\n"
|
|
" - weight: %d (targets %.1f%% of total)\n"
|
|
" - " INT64_FORMAT " transactions (%.1f%% of total, tps = %f)\n",
|
|
i + 1, sql_script[i].desc,
|
|
sql_script[i].weight,
|
|
100.0 * sql_script[i].weight / total_weight,
|
|
sstats->cnt,
|
|
100.0 * sstats->cnt / total->cnt,
|
|
(sstats->cnt - sstats->skipped) / time_include);
|
|
|
|
if (throttle_delay && latency_limit && sstats->cnt > 0)
|
|
printf(" - number of transactions skipped: " INT64_FORMAT " (%.3f%%)\n",
|
|
sstats->skipped,
|
|
100.0 * sstats->skipped / sstats->cnt);
|
|
|
|
printSimpleStats(" - latency", &sstats->latency);
|
|
}
|
|
|
|
/* Report per-command latencies */
|
|
if (report_per_command)
|
|
{
|
|
Command **commands;
|
|
|
|
if (per_script_stats)
|
|
printf(" - statement latencies in milliseconds:\n");
|
|
else
|
|
printf("statement latencies in milliseconds:\n");
|
|
|
|
for (commands = sql_script[i].commands;
|
|
*commands != NULL;
|
|
commands++)
|
|
{
|
|
SimpleStats *cstats = &(*commands)->stats;
|
|
|
|
printf(" %11.3f %s\n",
|
|
(cstats->count > 0) ?
|
|
1000.0 * cstats->sum / cstats->count : 0.0,
|
|
(*commands)->first_line);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Set up a random seed according to seed parameter (NULL means default),
|
|
* and initialize base_random_sequence for use in initializing other sequences.
|
|
*/
|
|
static bool
|
|
set_random_seed(const char *seed)
|
|
{
|
|
uint64 iseed;
|
|
|
|
if (seed == NULL || strcmp(seed, "time") == 0)
|
|
{
|
|
/* rely on current time */
|
|
instr_time now;
|
|
|
|
INSTR_TIME_SET_CURRENT(now);
|
|
iseed = (uint64) INSTR_TIME_GET_MICROSEC(now);
|
|
}
|
|
else if (strcmp(seed, "rand") == 0)
|
|
{
|
|
/* use some "strong" random source */
|
|
if (!pg_strong_random(&iseed, sizeof(iseed)))
|
|
{
|
|
pg_log_error("could not generate random seed");
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* parse unsigned-int seed value */
|
|
unsigned long ulseed;
|
|
char garbage;
|
|
|
|
/* Don't try to use UINT64_FORMAT here; it might not work for sscanf */
|
|
if (sscanf(seed, "%lu%c", &ulseed, &garbage) != 1)
|
|
{
|
|
pg_log_error("unrecognized random seed option \"%s\"", seed);
|
|
pg_log_info("Expecting an unsigned integer, \"time\" or \"rand\"");
|
|
return false;
|
|
}
|
|
iseed = (uint64) ulseed;
|
|
}
|
|
|
|
if (seed != NULL)
|
|
pg_log_info("setting random seed to " UINT64_FORMAT, iseed);
|
|
random_seed = iseed;
|
|
|
|
/* Fill base_random_sequence with low-order bits of seed */
|
|
base_random_sequence.xseed[0] = iseed & 0xFFFF;
|
|
base_random_sequence.xseed[1] = (iseed >> 16) & 0xFFFF;
|
|
base_random_sequence.xseed[2] = (iseed >> 32) & 0xFFFF;
|
|
|
|
return true;
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
static struct option long_options[] = {
|
|
/* systematic long/short named options */
|
|
{"builtin", required_argument, NULL, 'b'},
|
|
{"client", required_argument, NULL, 'c'},
|
|
{"connect", no_argument, NULL, 'C'},
|
|
{"debug", no_argument, NULL, 'd'},
|
|
{"define", required_argument, NULL, 'D'},
|
|
{"file", required_argument, NULL, 'f'},
|
|
{"fillfactor", required_argument, NULL, 'F'},
|
|
{"host", required_argument, NULL, 'h'},
|
|
{"initialize", no_argument, NULL, 'i'},
|
|
{"init-steps", required_argument, NULL, 'I'},
|
|
{"jobs", required_argument, NULL, 'j'},
|
|
{"log", no_argument, NULL, 'l'},
|
|
{"latency-limit", required_argument, NULL, 'L'},
|
|
{"no-vacuum", no_argument, NULL, 'n'},
|
|
{"port", required_argument, NULL, 'p'},
|
|
{"progress", required_argument, NULL, 'P'},
|
|
{"protocol", required_argument, NULL, 'M'},
|
|
{"quiet", no_argument, NULL, 'q'},
|
|
{"report-latencies", no_argument, NULL, 'r'},
|
|
{"rate", required_argument, NULL, 'R'},
|
|
{"scale", required_argument, NULL, 's'},
|
|
{"select-only", no_argument, NULL, 'S'},
|
|
{"skip-some-updates", no_argument, NULL, 'N'},
|
|
{"time", required_argument, NULL, 'T'},
|
|
{"transactions", required_argument, NULL, 't'},
|
|
{"username", required_argument, NULL, 'U'},
|
|
{"vacuum-all", no_argument, NULL, 'v'},
|
|
/* long-named only options */
|
|
{"unlogged-tables", no_argument, NULL, 1},
|
|
{"tablespace", required_argument, NULL, 2},
|
|
{"index-tablespace", required_argument, NULL, 3},
|
|
{"sampling-rate", required_argument, NULL, 4},
|
|
{"aggregate-interval", required_argument, NULL, 5},
|
|
{"progress-timestamp", no_argument, NULL, 6},
|
|
{"log-prefix", required_argument, NULL, 7},
|
|
{"foreign-keys", no_argument, NULL, 8},
|
|
{"random-seed", required_argument, NULL, 9},
|
|
{"show-script", required_argument, NULL, 10},
|
|
{"partitions", required_argument, NULL, 11},
|
|
{"partition-method", required_argument, NULL, 12},
|
|
{NULL, 0, NULL, 0}
|
|
};
|
|
|
|
int c;
|
|
bool is_init_mode = false; /* initialize mode? */
|
|
char *initialize_steps = NULL;
|
|
bool foreign_keys = false;
|
|
bool is_no_vacuum = false;
|
|
bool do_vacuum_accounts = false; /* vacuum accounts table? */
|
|
int optindex;
|
|
bool scale_given = false;
|
|
|
|
bool benchmarking_option_set = false;
|
|
bool initialization_option_set = false;
|
|
bool internal_script_used = false;
|
|
|
|
CState *state; /* status of clients */
|
|
TState *threads; /* array of thread */
|
|
|
|
instr_time start_time; /* start up time */
|
|
instr_time total_time;
|
|
instr_time conn_total_time;
|
|
int64 latency_late = 0;
|
|
StatsData stats;
|
|
int weight;
|
|
|
|
int i;
|
|
int nclients_dealt;
|
|
|
|
#ifdef HAVE_GETRLIMIT
|
|
struct rlimit rlim;
|
|
#endif
|
|
|
|
PGconn *con;
|
|
char *env;
|
|
|
|
int exit_code = 0;
|
|
|
|
pg_logging_init(argv[0]);
|
|
progname = get_progname(argv[0]);
|
|
|
|
if (argc > 1)
|
|
{
|
|
if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
|
|
{
|
|
usage();
|
|
exit(0);
|
|
}
|
|
if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
|
|
{
|
|
puts("pgbench (PostgreSQL) " PG_VERSION);
|
|
exit(0);
|
|
}
|
|
}
|
|
|
|
if ((env = getenv("PGHOST")) != NULL && *env != '\0')
|
|
pghost = env;
|
|
if ((env = getenv("PGPORT")) != NULL && *env != '\0')
|
|
pgport = env;
|
|
else if ((env = getenv("PGUSER")) != NULL && *env != '\0')
|
|
login = env;
|
|
|
|
state = (CState *) pg_malloc0(sizeof(CState));
|
|
|
|
/* set random seed early, because it may be used while parsing scripts. */
|
|
if (!set_random_seed(getenv("PGBENCH_RANDOM_SEED")))
|
|
{
|
|
pg_log_fatal("error while setting random seed from PGBENCH_RANDOM_SEED environment variable");
|
|
exit(1);
|
|
}
|
|
|
|
while ((c = getopt_long(argc, argv, "iI:h:nvp:dqb:SNc:j:Crs:t:T:U:lf:D:F:M:P:R:L:", long_options, &optindex)) != -1)
|
|
{
|
|
char *script;
|
|
|
|
switch (c)
|
|
{
|
|
case 'i':
|
|
is_init_mode = true;
|
|
break;
|
|
case 'I':
|
|
if (initialize_steps)
|
|
pg_free(initialize_steps);
|
|
initialize_steps = pg_strdup(optarg);
|
|
checkInitSteps(initialize_steps);
|
|
initialization_option_set = true;
|
|
break;
|
|
case 'h':
|
|
pghost = pg_strdup(optarg);
|
|
break;
|
|
case 'n':
|
|
is_no_vacuum = true;
|
|
break;
|
|
case 'v':
|
|
benchmarking_option_set = true;
|
|
do_vacuum_accounts = true;
|
|
break;
|
|
case 'p':
|
|
pgport = pg_strdup(optarg);
|
|
break;
|
|
case 'd':
|
|
pg_logging_set_level(PG_LOG_DEBUG);
|
|
break;
|
|
case 'c':
|
|
benchmarking_option_set = true;
|
|
nclients = atoi(optarg);
|
|
if (nclients <= 0)
|
|
{
|
|
pg_log_fatal("invalid number of clients: \"%s\"", optarg);
|
|
exit(1);
|
|
}
|
|
#ifdef HAVE_GETRLIMIT
|
|
#ifdef RLIMIT_NOFILE /* most platforms use RLIMIT_NOFILE */
|
|
if (getrlimit(RLIMIT_NOFILE, &rlim) == -1)
|
|
#else /* but BSD doesn't ... */
|
|
if (getrlimit(RLIMIT_OFILE, &rlim) == -1)
|
|
#endif /* RLIMIT_NOFILE */
|
|
{
|
|
pg_log_fatal("getrlimit failed: %m");
|
|
exit(1);
|
|
}
|
|
if (rlim.rlim_cur < nclients + 3)
|
|
{
|
|
pg_log_fatal("need at least %d open files, but system limit is %ld",
|
|
nclients + 3, (long) rlim.rlim_cur);
|
|
pg_log_info("Reduce number of clients, or use limit/ulimit to increase the system limit.");
|
|
exit(1);
|
|
}
|
|
#endif /* HAVE_GETRLIMIT */
|
|
break;
|
|
case 'j': /* jobs */
|
|
benchmarking_option_set = true;
|
|
nthreads = atoi(optarg);
|
|
if (nthreads <= 0)
|
|
{
|
|
pg_log_fatal("invalid number of threads: \"%s\"", optarg);
|
|
exit(1);
|
|
}
|
|
#ifndef ENABLE_THREAD_SAFETY
|
|
if (nthreads != 1)
|
|
{
|
|
pg_log_fatal("threads are not supported on this platform; use -j1");
|
|
exit(1);
|
|
}
|
|
#endif /* !ENABLE_THREAD_SAFETY */
|
|
break;
|
|
case 'C':
|
|
benchmarking_option_set = true;
|
|
is_connect = true;
|
|
break;
|
|
case 'r':
|
|
benchmarking_option_set = true;
|
|
report_per_command = true;
|
|
break;
|
|
case 's':
|
|
scale_given = true;
|
|
scale = atoi(optarg);
|
|
if (scale <= 0)
|
|
{
|
|
pg_log_fatal("invalid scaling factor: \"%s\"", optarg);
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 't':
|
|
benchmarking_option_set = true;
|
|
nxacts = atoi(optarg);
|
|
if (nxacts <= 0)
|
|
{
|
|
pg_log_fatal("invalid number of transactions: \"%s\"", optarg);
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 'T':
|
|
benchmarking_option_set = true;
|
|
duration = atoi(optarg);
|
|
if (duration <= 0)
|
|
{
|
|
pg_log_fatal("invalid duration: \"%s\"", optarg);
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 'U':
|
|
login = pg_strdup(optarg);
|
|
break;
|
|
case 'l':
|
|
benchmarking_option_set = true;
|
|
use_log = true;
|
|
break;
|
|
case 'q':
|
|
initialization_option_set = true;
|
|
use_quiet = true;
|
|
break;
|
|
case 'b':
|
|
if (strcmp(optarg, "list") == 0)
|
|
{
|
|
listAvailableScripts();
|
|
exit(0);
|
|
}
|
|
weight = parseScriptWeight(optarg, &script);
|
|
process_builtin(findBuiltin(script), weight);
|
|
benchmarking_option_set = true;
|
|
internal_script_used = true;
|
|
break;
|
|
case 'S':
|
|
process_builtin(findBuiltin("select-only"), 1);
|
|
benchmarking_option_set = true;
|
|
internal_script_used = true;
|
|
break;
|
|
case 'N':
|
|
process_builtin(findBuiltin("simple-update"), 1);
|
|
benchmarking_option_set = true;
|
|
internal_script_used = true;
|
|
break;
|
|
case 'f':
|
|
weight = parseScriptWeight(optarg, &script);
|
|
process_file(script, weight);
|
|
benchmarking_option_set = true;
|
|
break;
|
|
case 'D':
|
|
{
|
|
char *p;
|
|
|
|
benchmarking_option_set = true;
|
|
|
|
if ((p = strchr(optarg, '=')) == NULL || p == optarg || *(p + 1) == '\0')
|
|
{
|
|
pg_log_fatal("invalid variable definition: \"%s\"", optarg);
|
|
exit(1);
|
|
}
|
|
|
|
*p++ = '\0';
|
|
if (!putVariable(&state[0], "option", optarg, p))
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 'F':
|
|
initialization_option_set = true;
|
|
fillfactor = atoi(optarg);
|
|
if (fillfactor < 10 || fillfactor > 100)
|
|
{
|
|
pg_log_fatal("invalid fillfactor: \"%s\"", optarg);
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 'M':
|
|
benchmarking_option_set = true;
|
|
for (querymode = 0; querymode < NUM_QUERYMODE; querymode++)
|
|
if (strcmp(optarg, QUERYMODE[querymode]) == 0)
|
|
break;
|
|
if (querymode >= NUM_QUERYMODE)
|
|
{
|
|
pg_log_fatal("invalid query mode (-M): \"%s\"", optarg);
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 'P':
|
|
benchmarking_option_set = true;
|
|
progress = atoi(optarg);
|
|
if (progress <= 0)
|
|
{
|
|
pg_log_fatal("invalid thread progress delay: \"%s\"", optarg);
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 'R':
|
|
{
|
|
/* get a double from the beginning of option value */
|
|
double throttle_value = atof(optarg);
|
|
|
|
benchmarking_option_set = true;
|
|
|
|
if (throttle_value <= 0.0)
|
|
{
|
|
pg_log_fatal("invalid rate limit: \"%s\"", optarg);
|
|
exit(1);
|
|
}
|
|
/* Invert rate limit into per-transaction delay in usec */
|
|
throttle_delay = 1000000.0 / throttle_value;
|
|
}
|
|
break;
|
|
case 'L':
|
|
{
|
|
double limit_ms = atof(optarg);
|
|
|
|
if (limit_ms <= 0.0)
|
|
{
|
|
pg_log_fatal("invalid latency limit: \"%s\"", optarg);
|
|
exit(1);
|
|
}
|
|
benchmarking_option_set = true;
|
|
latency_limit = (int64) (limit_ms * 1000);
|
|
}
|
|
break;
|
|
case 1: /* unlogged-tables */
|
|
initialization_option_set = true;
|
|
unlogged_tables = true;
|
|
break;
|
|
case 2: /* tablespace */
|
|
initialization_option_set = true;
|
|
tablespace = pg_strdup(optarg);
|
|
break;
|
|
case 3: /* index-tablespace */
|
|
initialization_option_set = true;
|
|
index_tablespace = pg_strdup(optarg);
|
|
break;
|
|
case 4: /* sampling-rate */
|
|
benchmarking_option_set = true;
|
|
sample_rate = atof(optarg);
|
|
if (sample_rate <= 0.0 || sample_rate > 1.0)
|
|
{
|
|
pg_log_fatal("invalid sampling rate: \"%s\"", optarg);
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 5: /* aggregate-interval */
|
|
benchmarking_option_set = true;
|
|
agg_interval = atoi(optarg);
|
|
if (agg_interval <= 0)
|
|
{
|
|
pg_log_fatal("invalid number of seconds for aggregation: \"%s\"", optarg);
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 6: /* progress-timestamp */
|
|
progress_timestamp = true;
|
|
benchmarking_option_set = true;
|
|
break;
|
|
case 7: /* log-prefix */
|
|
benchmarking_option_set = true;
|
|
logfile_prefix = pg_strdup(optarg);
|
|
break;
|
|
case 8: /* foreign-keys */
|
|
initialization_option_set = true;
|
|
foreign_keys = true;
|
|
break;
|
|
case 9: /* random-seed */
|
|
benchmarking_option_set = true;
|
|
if (!set_random_seed(optarg))
|
|
{
|
|
pg_log_fatal("error while setting random seed from --random-seed option");
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 10: /* list */
|
|
{
|
|
const BuiltinScript *s = findBuiltin(optarg);
|
|
|
|
fprintf(stderr, "-- %s: %s\n%s\n", s->name, s->desc, s->script);
|
|
exit(0);
|
|
}
|
|
break;
|
|
case 11: /* partitions */
|
|
initialization_option_set = true;
|
|
partitions = atoi(optarg);
|
|
if (partitions < 0)
|
|
{
|
|
pg_log_fatal("invalid number of partitions: \"%s\"", optarg);
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 12: /* partition-method */
|
|
initialization_option_set = true;
|
|
if (pg_strcasecmp(optarg, "range") == 0)
|
|
partition_method = PART_RANGE;
|
|
else if (pg_strcasecmp(optarg, "hash") == 0)
|
|
partition_method = PART_HASH;
|
|
else
|
|
{
|
|
pg_log_fatal("invalid partition method, expecting \"range\" or \"hash\", got: \"%s\"",
|
|
optarg);
|
|
exit(1);
|
|
}
|
|
break;
|
|
default:
|
|
fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
|
|
exit(1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* set default script if none */
|
|
if (num_scripts == 0 && !is_init_mode)
|
|
{
|
|
process_builtin(findBuiltin("tpcb-like"), 1);
|
|
benchmarking_option_set = true;
|
|
internal_script_used = true;
|
|
}
|
|
|
|
/* complete SQL command initialization and compute total weight */
|
|
for (i = 0; i < num_scripts; i++)
|
|
{
|
|
Command **commands = sql_script[i].commands;
|
|
|
|
for (int j = 0; commands[j] != NULL; j++)
|
|
if (commands[j]->type == SQL_COMMAND)
|
|
postprocess_sql_command(commands[j]);
|
|
|
|
/* cannot overflow: weight is 32b, total_weight 64b */
|
|
total_weight += sql_script[i].weight;
|
|
}
|
|
|
|
if (total_weight == 0 && !is_init_mode)
|
|
{
|
|
pg_log_fatal("total script weight must not be zero");
|
|
exit(1);
|
|
}
|
|
|
|
/* show per script stats if several scripts are used */
|
|
if (num_scripts > 1)
|
|
per_script_stats = true;
|
|
|
|
/*
|
|
* Don't need more threads than there are clients. (This is not merely an
|
|
* optimization; throttle_delay is calculated incorrectly below if some
|
|
* threads have no clients assigned to them.)
|
|
*/
|
|
if (nthreads > nclients)
|
|
nthreads = nclients;
|
|
|
|
/*
|
|
* Convert throttle_delay to a per-thread delay time. Note that this
|
|
* might be a fractional number of usec, but that's OK, since it's just
|
|
* the center of a Poisson distribution of delays.
|
|
*/
|
|
throttle_delay *= nthreads;
|
|
|
|
if (argc > optind)
|
|
dbName = argv[optind++];
|
|
else
|
|
{
|
|
if ((env = getenv("PGDATABASE")) != NULL && *env != '\0')
|
|
dbName = env;
|
|
else if (login != NULL && *login != '\0')
|
|
dbName = login;
|
|
else
|
|
dbName = "";
|
|
}
|
|
|
|
if (optind < argc)
|
|
{
|
|
pg_log_fatal("too many command-line arguments (first is \"%s\")",
|
|
argv[optind]);
|
|
fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
|
|
exit(1);
|
|
}
|
|
|
|
if (is_init_mode)
|
|
{
|
|
if (benchmarking_option_set)
|
|
{
|
|
pg_log_fatal("some of the specified options cannot be used in initialization (-i) mode");
|
|
exit(1);
|
|
}
|
|
|
|
if (partitions == 0 && partition_method != PART_NONE)
|
|
{
|
|
pg_log_fatal("--partition-method requires greater than zero --partitions");
|
|
exit(1);
|
|
}
|
|
|
|
/* set default method */
|
|
if (partitions > 0 && partition_method == PART_NONE)
|
|
partition_method = PART_RANGE;
|
|
|
|
if (initialize_steps == NULL)
|
|
initialize_steps = pg_strdup(DEFAULT_INIT_STEPS);
|
|
|
|
if (is_no_vacuum)
|
|
{
|
|
/* Remove any vacuum step in initialize_steps */
|
|
char *p;
|
|
|
|
while ((p = strchr(initialize_steps, 'v')) != NULL)
|
|
*p = ' ';
|
|
}
|
|
|
|
if (foreign_keys)
|
|
{
|
|
/* Add 'f' to end of initialize_steps, if not already there */
|
|
if (strchr(initialize_steps, 'f') == NULL)
|
|
{
|
|
initialize_steps = (char *)
|
|
pg_realloc(initialize_steps,
|
|
strlen(initialize_steps) + 2);
|
|
strcat(initialize_steps, "f");
|
|
}
|
|
}
|
|
|
|
runInitSteps(initialize_steps);
|
|
exit(0);
|
|
}
|
|
else
|
|
{
|
|
if (initialization_option_set)
|
|
{
|
|
pg_log_fatal("some of the specified options cannot be used in benchmarking mode");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
if (nxacts > 0 && duration > 0)
|
|
{
|
|
pg_log_fatal("specify either a number of transactions (-t) or a duration (-T), not both");
|
|
exit(1);
|
|
}
|
|
|
|
/* Use DEFAULT_NXACTS if neither nxacts nor duration is specified. */
|
|
if (nxacts <= 0 && duration <= 0)
|
|
nxacts = DEFAULT_NXACTS;
|
|
|
|
/* --sampling-rate may be used only with -l */
|
|
if (sample_rate > 0.0 && !use_log)
|
|
{
|
|
pg_log_fatal("log sampling (--sampling-rate) is allowed only when logging transactions (-l)");
|
|
exit(1);
|
|
}
|
|
|
|
/* --sampling-rate may not be used with --aggregate-interval */
|
|
if (sample_rate > 0.0 && agg_interval > 0)
|
|
{
|
|
pg_log_fatal("log sampling (--sampling-rate) and aggregation (--aggregate-interval) cannot be used at the same time");
|
|
exit(1);
|
|
}
|
|
|
|
if (agg_interval > 0 && !use_log)
|
|
{
|
|
pg_log_fatal("log aggregation is allowed only when actually logging transactions");
|
|
exit(1);
|
|
}
|
|
|
|
if (!use_log && logfile_prefix)
|
|
{
|
|
pg_log_fatal("log file prefix (--log-prefix) is allowed only when logging transactions (-l)");
|
|
exit(1);
|
|
}
|
|
|
|
if (duration > 0 && agg_interval > duration)
|
|
{
|
|
pg_log_fatal("number of seconds for aggregation (%d) must not be higher than test duration (%d)", agg_interval, duration);
|
|
exit(1);
|
|
}
|
|
|
|
if (duration > 0 && agg_interval > 0 && duration % agg_interval != 0)
|
|
{
|
|
pg_log_fatal("duration (%d) must be a multiple of aggregation interval (%d)", duration, agg_interval);
|
|
exit(1);
|
|
}
|
|
|
|
if (progress_timestamp && progress == 0)
|
|
{
|
|
pg_log_fatal("--progress-timestamp is allowed only under --progress");
|
|
exit(1);
|
|
}
|
|
|
|
/*
|
|
* save main process id in the global variable because process id will be
|
|
* changed after fork.
|
|
*/
|
|
main_pid = (int) getpid();
|
|
|
|
if (nclients > 1)
|
|
{
|
|
state = (CState *) pg_realloc(state, sizeof(CState) * nclients);
|
|
memset(state + 1, 0, sizeof(CState) * (nclients - 1));
|
|
|
|
/* copy any -D switch values to all clients */
|
|
for (i = 1; i < nclients; i++)
|
|
{
|
|
int j;
|
|
|
|
state[i].id = i;
|
|
for (j = 0; j < state[0].nvariables; j++)
|
|
{
|
|
Variable *var = &state[0].variables[j];
|
|
|
|
if (var->value.type != PGBT_NO_VALUE)
|
|
{
|
|
if (!putVariableValue(&state[i], "startup",
|
|
var->name, &var->value))
|
|
exit(1);
|
|
}
|
|
else
|
|
{
|
|
if (!putVariable(&state[i], "startup",
|
|
var->name, var->svalue))
|
|
exit(1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* other CState initializations */
|
|
for (i = 0; i < nclients; i++)
|
|
{
|
|
state[i].cstack = conditional_stack_create();
|
|
initRandomState(&state[i].cs_func_rs);
|
|
}
|
|
|
|
pg_log_debug("pghost: %s pgport: %s nclients: %d %s: %d dbName: %s",
|
|
pghost, pgport, nclients,
|
|
duration <= 0 ? "nxacts" : "duration",
|
|
duration <= 0 ? nxacts : duration, dbName);
|
|
|
|
/* opening connection... */
|
|
con = doConnect();
|
|
if (con == NULL)
|
|
exit(1);
|
|
|
|
if (PQstatus(con) == CONNECTION_BAD)
|
|
{
|
|
pg_log_fatal("connection to database \"%s\" failed: %s",
|
|
dbName, PQerrorMessage(con));
|
|
exit(1);
|
|
}
|
|
|
|
if (internal_script_used)
|
|
GetTableInfo(con, scale_given);
|
|
|
|
/*
|
|
* :scale variables normally get -s or database scale, but don't override
|
|
* an explicit -D switch
|
|
*/
|
|
if (lookupVariable(&state[0], "scale") == NULL)
|
|
{
|
|
for (i = 0; i < nclients; i++)
|
|
{
|
|
if (!putVariableInt(&state[i], "startup", "scale", scale))
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Define a :client_id variable that is unique per connection. But don't
|
|
* override an explicit -D switch.
|
|
*/
|
|
if (lookupVariable(&state[0], "client_id") == NULL)
|
|
{
|
|
for (i = 0; i < nclients; i++)
|
|
if (!putVariableInt(&state[i], "startup", "client_id", i))
|
|
exit(1);
|
|
}
|
|
|
|
/* set default seed for hash functions */
|
|
if (lookupVariable(&state[0], "default_seed") == NULL)
|
|
{
|
|
uint64 seed =
|
|
((uint64) pg_jrand48(base_random_sequence.xseed) & 0xFFFFFFFF) |
|
|
(((uint64) pg_jrand48(base_random_sequence.xseed) & 0xFFFFFFFF) << 32);
|
|
|
|
for (i = 0; i < nclients; i++)
|
|
if (!putVariableInt(&state[i], "startup", "default_seed", (int64) seed))
|
|
exit(1);
|
|
}
|
|
|
|
/* set random seed unless overwritten */
|
|
if (lookupVariable(&state[0], "random_seed") == NULL)
|
|
{
|
|
for (i = 0; i < nclients; i++)
|
|
if (!putVariableInt(&state[i], "startup", "random_seed", random_seed))
|
|
exit(1);
|
|
}
|
|
|
|
if (!is_no_vacuum)
|
|
{
|
|
fprintf(stderr, "starting vacuum...");
|
|
tryExecuteStatement(con, "vacuum pgbench_branches");
|
|
tryExecuteStatement(con, "vacuum pgbench_tellers");
|
|
tryExecuteStatement(con, "truncate pgbench_history");
|
|
fprintf(stderr, "end.\n");
|
|
|
|
if (do_vacuum_accounts)
|
|
{
|
|
fprintf(stderr, "starting vacuum pgbench_accounts...");
|
|
tryExecuteStatement(con, "vacuum analyze pgbench_accounts");
|
|
fprintf(stderr, "end.\n");
|
|
}
|
|
}
|
|
PQfinish(con);
|
|
|
|
/* set up thread data structures */
|
|
threads = (TState *) pg_malloc(sizeof(TState) * nthreads);
|
|
nclients_dealt = 0;
|
|
|
|
for (i = 0; i < nthreads; i++)
|
|
{
|
|
TState *thread = &threads[i];
|
|
|
|
thread->tid = i;
|
|
thread->state = &state[nclients_dealt];
|
|
thread->nstate =
|
|
(nclients - nclients_dealt + nthreads - i - 1) / (nthreads - i);
|
|
initRandomState(&thread->ts_choose_rs);
|
|
initRandomState(&thread->ts_throttle_rs);
|
|
initRandomState(&thread->ts_sample_rs);
|
|
thread->logfile = NULL; /* filled in later */
|
|
thread->latency_late = 0;
|
|
initStats(&thread->stats, 0);
|
|
|
|
nclients_dealt += thread->nstate;
|
|
}
|
|
|
|
/* all clients must be assigned to a thread */
|
|
Assert(nclients_dealt == nclients);
|
|
|
|
/* get start up time */
|
|
INSTR_TIME_SET_CURRENT(start_time);
|
|
|
|
/* set alarm if duration is specified. */
|
|
if (duration > 0)
|
|
setalarm(duration);
|
|
|
|
/* start threads */
|
|
#ifdef ENABLE_THREAD_SAFETY
|
|
for (i = 0; i < nthreads; i++)
|
|
{
|
|
TState *thread = &threads[i];
|
|
|
|
INSTR_TIME_SET_CURRENT(thread->start_time);
|
|
|
|
/* compute when to stop */
|
|
if (duration > 0)
|
|
end_time = INSTR_TIME_GET_MICROSEC(thread->start_time) +
|
|
(int64) 1000000 * duration;
|
|
|
|
/* the first thread (i = 0) is executed by main thread */
|
|
if (i > 0)
|
|
{
|
|
int err = pthread_create(&thread->thread, NULL, threadRun, thread);
|
|
|
|
if (err != 0 || thread->thread == INVALID_THREAD)
|
|
{
|
|
pg_log_fatal("could not create thread: %m");
|
|
exit(1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
thread->thread = INVALID_THREAD;
|
|
}
|
|
}
|
|
#else
|
|
INSTR_TIME_SET_CURRENT(threads[0].start_time);
|
|
/* compute when to stop */
|
|
if (duration > 0)
|
|
end_time = INSTR_TIME_GET_MICROSEC(threads[0].start_time) +
|
|
(int64) 1000000 * duration;
|
|
threads[0].thread = INVALID_THREAD;
|
|
#endif /* ENABLE_THREAD_SAFETY */
|
|
|
|
/* wait for threads and accumulate results */
|
|
initStats(&stats, 0);
|
|
INSTR_TIME_SET_ZERO(conn_total_time);
|
|
for (i = 0; i < nthreads; i++)
|
|
{
|
|
TState *thread = &threads[i];
|
|
|
|
#ifdef ENABLE_THREAD_SAFETY
|
|
if (threads[i].thread == INVALID_THREAD)
|
|
/* actually run this thread directly in the main thread */
|
|
(void) threadRun(thread);
|
|
else
|
|
/* wait of other threads. should check that 0 is returned? */
|
|
pthread_join(thread->thread, NULL);
|
|
#else
|
|
(void) threadRun(thread);
|
|
#endif /* ENABLE_THREAD_SAFETY */
|
|
|
|
for (int j = 0; j < thread->nstate; j++)
|
|
if (thread->state[j].state == CSTATE_ABORTED)
|
|
exit_code = 2;
|
|
|
|
/* aggregate thread level stats */
|
|
mergeSimpleStats(&stats.latency, &thread->stats.latency);
|
|
mergeSimpleStats(&stats.lag, &thread->stats.lag);
|
|
stats.cnt += thread->stats.cnt;
|
|
stats.skipped += thread->stats.skipped;
|
|
latency_late += thread->latency_late;
|
|
INSTR_TIME_ADD(conn_total_time, thread->conn_time);
|
|
}
|
|
disconnect_all(state, nclients);
|
|
|
|
/*
|
|
* XXX We compute results as though every client of every thread started
|
|
* and finished at the same time. That model can diverge noticeably from
|
|
* reality for a short benchmark run involving relatively many threads.
|
|
* The first thread may process notably many transactions before the last
|
|
* thread begins. Improving the model alone would bring limited benefit,
|
|
* because performance during those periods of partial thread count can
|
|
* easily exceed steady state performance. This is one of the many ways
|
|
* short runs convey deceptive performance figures.
|
|
*/
|
|
INSTR_TIME_SET_CURRENT(total_time);
|
|
INSTR_TIME_SUBTRACT(total_time, start_time);
|
|
printResults(&stats, total_time, conn_total_time, latency_late);
|
|
|
|
if (exit_code != 0)
|
|
pg_log_fatal("Run was aborted; the above results are incomplete.");
|
|
|
|
return exit_code;
|
|
}
|
|
|
|
static void *
|
|
threadRun(void *arg)
|
|
{
|
|
TState *thread = (TState *) arg;
|
|
CState *state = thread->state;
|
|
instr_time start,
|
|
end;
|
|
int nstate = thread->nstate;
|
|
int remains = nstate; /* number of remaining clients */
|
|
socket_set *sockets = alloc_socket_set(nstate);
|
|
int i;
|
|
|
|
/* for reporting progress: */
|
|
int64 thread_start = INSTR_TIME_GET_MICROSEC(thread->start_time);
|
|
int64 last_report = thread_start;
|
|
int64 next_report = last_report + (int64) progress * 1000000;
|
|
StatsData last,
|
|
aggs;
|
|
|
|
/*
|
|
* Initialize throttling rate target for all of the thread's clients. It
|
|
* might be a little more accurate to reset thread->start_time here too.
|
|
* The possible drift seems too small relative to typical throttle delay
|
|
* times to worry about it.
|
|
*/
|
|
INSTR_TIME_SET_CURRENT(start);
|
|
thread->throttle_trigger = INSTR_TIME_GET_MICROSEC(start);
|
|
|
|
INSTR_TIME_SET_ZERO(thread->conn_time);
|
|
|
|
initStats(&aggs, time(NULL));
|
|
last = aggs;
|
|
|
|
/* open log file if requested */
|
|
if (use_log)
|
|
{
|
|
char logpath[MAXPGPATH];
|
|
char *prefix = logfile_prefix ? logfile_prefix : "pgbench_log";
|
|
|
|
if (thread->tid == 0)
|
|
snprintf(logpath, sizeof(logpath), "%s.%d", prefix, main_pid);
|
|
else
|
|
snprintf(logpath, sizeof(logpath), "%s.%d.%d", prefix, main_pid, thread->tid);
|
|
|
|
thread->logfile = fopen(logpath, "w");
|
|
|
|
if (thread->logfile == NULL)
|
|
{
|
|
pg_log_fatal("could not open logfile \"%s\": %m", logpath);
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
if (!is_connect)
|
|
{
|
|
/* make connections to the database before starting */
|
|
for (i = 0; i < nstate; i++)
|
|
{
|
|
if ((state[i].con = doConnect()) == NULL)
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/* time after thread and connections set up */
|
|
INSTR_TIME_SET_CURRENT(thread->conn_time);
|
|
INSTR_TIME_SUBTRACT(thread->conn_time, thread->start_time);
|
|
|
|
/* explicitly initialize the state machines */
|
|
for (i = 0; i < nstate; i++)
|
|
{
|
|
state[i].state = CSTATE_CHOOSE_SCRIPT;
|
|
}
|
|
|
|
/* loop till all clients have terminated */
|
|
while (remains > 0)
|
|
{
|
|
int nsocks; /* number of sockets to be waited for */
|
|
int64 min_usec;
|
|
int64 now_usec = 0; /* set this only if needed */
|
|
|
|
/*
|
|
* identify which client sockets should be checked for input, and
|
|
* compute the nearest time (if any) at which we need to wake up.
|
|
*/
|
|
clear_socket_set(sockets);
|
|
nsocks = 0;
|
|
min_usec = PG_INT64_MAX;
|
|
for (i = 0; i < nstate; i++)
|
|
{
|
|
CState *st = &state[i];
|
|
|
|
if (st->state == CSTATE_SLEEP || st->state == CSTATE_THROTTLE)
|
|
{
|
|
/* a nap from the script, or under throttling */
|
|
int64 this_usec;
|
|
|
|
/* get current time if needed */
|
|
if (now_usec == 0)
|
|
{
|
|
instr_time now;
|
|
|
|
INSTR_TIME_SET_CURRENT(now);
|
|
now_usec = INSTR_TIME_GET_MICROSEC(now);
|
|
}
|
|
|
|
/* min_usec should be the minimum delay across all clients */
|
|
this_usec = (st->state == CSTATE_SLEEP ?
|
|
st->sleep_until : st->txn_scheduled) - now_usec;
|
|
if (min_usec > this_usec)
|
|
min_usec = this_usec;
|
|
}
|
|
else if (st->state == CSTATE_WAIT_RESULT)
|
|
{
|
|
/*
|
|
* waiting for result from server - nothing to do unless the
|
|
* socket is readable
|
|
*/
|
|
int sock = PQsocket(st->con);
|
|
|
|
if (sock < 0)
|
|
{
|
|
pg_log_error("invalid socket: %s", PQerrorMessage(st->con));
|
|
goto done;
|
|
}
|
|
|
|
add_socket_to_set(sockets, sock, nsocks++);
|
|
}
|
|
else if (st->state != CSTATE_ABORTED &&
|
|
st->state != CSTATE_FINISHED)
|
|
{
|
|
/*
|
|
* This client thread is ready to do something, so we don't
|
|
* want to wait. No need to examine additional clients.
|
|
*/
|
|
min_usec = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* also wake up to print the next progress report on time */
|
|
if (progress && min_usec > 0 && thread->tid == 0)
|
|
{
|
|
/* get current time if needed */
|
|
if (now_usec == 0)
|
|
{
|
|
instr_time now;
|
|
|
|
INSTR_TIME_SET_CURRENT(now);
|
|
now_usec = INSTR_TIME_GET_MICROSEC(now);
|
|
}
|
|
|
|
if (now_usec >= next_report)
|
|
min_usec = 0;
|
|
else if ((next_report - now_usec) < min_usec)
|
|
min_usec = next_report - now_usec;
|
|
}
|
|
|
|
/*
|
|
* If no clients are ready to execute actions, sleep until we receive
|
|
* data on some client socket or the timeout (if any) elapses.
|
|
*/
|
|
if (min_usec > 0)
|
|
{
|
|
int rc = 0;
|
|
|
|
if (min_usec != PG_INT64_MAX)
|
|
{
|
|
if (nsocks > 0)
|
|
{
|
|
rc = wait_on_socket_set(sockets, min_usec);
|
|
}
|
|
else /* nothing active, simple sleep */
|
|
{
|
|
pg_usleep(min_usec);
|
|
}
|
|
}
|
|
else /* no explicit delay, wait without timeout */
|
|
{
|
|
rc = wait_on_socket_set(sockets, 0);
|
|
}
|
|
|
|
if (rc < 0)
|
|
{
|
|
if (errno == EINTR)
|
|
{
|
|
/* On EINTR, go back to top of loop */
|
|
continue;
|
|
}
|
|
/* must be something wrong */
|
|
pg_log_fatal("%s() failed: %m", SOCKET_WAIT_METHOD);
|
|
goto done;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* min_usec <= 0, i.e. something needs to be executed now */
|
|
|
|
/* If we didn't wait, don't try to read any data */
|
|
clear_socket_set(sockets);
|
|
}
|
|
|
|
/* ok, advance the state machine of each connection */
|
|
nsocks = 0;
|
|
for (i = 0; i < nstate; i++)
|
|
{
|
|
CState *st = &state[i];
|
|
|
|
if (st->state == CSTATE_WAIT_RESULT)
|
|
{
|
|
/* don't call advanceConnectionState unless data is available */
|
|
int sock = PQsocket(st->con);
|
|
|
|
if (sock < 0)
|
|
{
|
|
pg_log_error("invalid socket: %s", PQerrorMessage(st->con));
|
|
goto done;
|
|
}
|
|
|
|
if (!socket_has_input(sockets, sock, nsocks++))
|
|
continue;
|
|
}
|
|
else if (st->state == CSTATE_FINISHED ||
|
|
st->state == CSTATE_ABORTED)
|
|
{
|
|
/* this client is done, no need to consider it anymore */
|
|
continue;
|
|
}
|
|
|
|
advanceConnectionState(thread, st, &aggs);
|
|
|
|
/*
|
|
* If advanceConnectionState changed client to finished state,
|
|
* that's one less client that remains.
|
|
*/
|
|
if (st->state == CSTATE_FINISHED || st->state == CSTATE_ABORTED)
|
|
remains--;
|
|
}
|
|
|
|
/* progress report is made by thread 0 for all threads */
|
|
if (progress && thread->tid == 0)
|
|
{
|
|
instr_time now_time;
|
|
int64 now;
|
|
|
|
INSTR_TIME_SET_CURRENT(now_time);
|
|
now = INSTR_TIME_GET_MICROSEC(now_time);
|
|
if (now >= next_report)
|
|
{
|
|
/*
|
|
* Horrible hack: this relies on the thread pointer we are
|
|
* passed to be equivalent to threads[0], that is the first
|
|
* entry of the threads array. That is why this MUST be done
|
|
* by thread 0 and not any other.
|
|
*/
|
|
printProgressReport(thread, thread_start, now,
|
|
&last, &last_report);
|
|
|
|
/*
|
|
* Ensure that the next report is in the future, in case
|
|
* pgbench/postgres got stuck somewhere.
|
|
*/
|
|
do
|
|
{
|
|
next_report += (int64) progress * 1000000;
|
|
} while (now >= next_report);
|
|
}
|
|
}
|
|
}
|
|
|
|
done:
|
|
INSTR_TIME_SET_CURRENT(start);
|
|
disconnect_all(state, nstate);
|
|
INSTR_TIME_SET_CURRENT(end);
|
|
INSTR_TIME_ACCUM_DIFF(thread->conn_time, end, start);
|
|
if (thread->logfile)
|
|
{
|
|
if (agg_interval > 0)
|
|
{
|
|
/* log aggregated but not yet reported transactions */
|
|
doLog(thread, state, &aggs, false, 0, 0);
|
|
}
|
|
fclose(thread->logfile);
|
|
thread->logfile = NULL;
|
|
}
|
|
free_socket_set(sockets);
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
finishCon(CState *st)
|
|
{
|
|
if (st->con != NULL)
|
|
{
|
|
PQfinish(st->con);
|
|
st->con = NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Support for duration option: set timer_exceeded after so many seconds.
|
|
*/
|
|
|
|
#ifndef WIN32
|
|
|
|
static void
|
|
handle_sig_alarm(SIGNAL_ARGS)
|
|
{
|
|
timer_exceeded = true;
|
|
}
|
|
|
|
static void
|
|
setalarm(int seconds)
|
|
{
|
|
pqsignal(SIGALRM, handle_sig_alarm);
|
|
alarm(seconds);
|
|
}
|
|
|
|
#else /* WIN32 */
|
|
|
|
static VOID CALLBACK
|
|
win32_timer_callback(PVOID lpParameter, BOOLEAN TimerOrWaitFired)
|
|
{
|
|
timer_exceeded = true;
|
|
}
|
|
|
|
static void
|
|
setalarm(int seconds)
|
|
{
|
|
HANDLE queue;
|
|
HANDLE timer;
|
|
|
|
/* This function will be called at most once, so we can cheat a bit. */
|
|
queue = CreateTimerQueue();
|
|
if (seconds > ((DWORD) -1) / 1000 ||
|
|
!CreateTimerQueueTimer(&timer, queue,
|
|
win32_timer_callback, NULL, seconds * 1000, 0,
|
|
WT_EXECUTEINTIMERTHREAD | WT_EXECUTEONLYONCE))
|
|
{
|
|
pg_log_fatal("failed to set timer");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
#endif /* WIN32 */
|
|
|
|
|
|
/*
|
|
* These functions provide an abstraction layer that hides the syscall
|
|
* we use to wait for input on a set of sockets.
|
|
*
|
|
* Currently there are two implementations, based on ppoll(2) and select(2).
|
|
* ppoll() is preferred where available due to its typically higher ceiling
|
|
* on the number of usable sockets. We do not use the more-widely-available
|
|
* poll(2) because it only offers millisecond timeout resolution, which could
|
|
* be problematic with high --rate settings.
|
|
*
|
|
* Function APIs:
|
|
*
|
|
* alloc_socket_set: allocate an empty socket set with room for up to
|
|
* "count" sockets.
|
|
*
|
|
* free_socket_set: deallocate a socket set.
|
|
*
|
|
* clear_socket_set: reset a socket set to empty.
|
|
*
|
|
* add_socket_to_set: add socket with indicated FD to slot "idx" in the
|
|
* socket set. Slots must be filled in order, starting with 0.
|
|
*
|
|
* wait_on_socket_set: wait for input on any socket in set, or for timeout
|
|
* to expire. timeout is measured in microseconds; 0 means wait forever.
|
|
* Returns result code of underlying syscall (>=0 if OK, else see errno).
|
|
*
|
|
* socket_has_input: after waiting, call this to see if given socket has
|
|
* input. fd and idx parameters should match some previous call to
|
|
* add_socket_to_set.
|
|
*
|
|
* Note that wait_on_socket_set destructively modifies the state of the
|
|
* socket set. After checking for input, caller must apply clear_socket_set
|
|
* and add_socket_to_set again before waiting again.
|
|
*/
|
|
|
|
#ifdef POLL_USING_PPOLL
|
|
|
|
static socket_set *
|
|
alloc_socket_set(int count)
|
|
{
|
|
socket_set *sa;
|
|
|
|
sa = (socket_set *) pg_malloc0(offsetof(socket_set, pollfds) +
|
|
sizeof(struct pollfd) * count);
|
|
sa->maxfds = count;
|
|
sa->curfds = 0;
|
|
return sa;
|
|
}
|
|
|
|
static void
|
|
free_socket_set(socket_set *sa)
|
|
{
|
|
pg_free(sa);
|
|
}
|
|
|
|
static void
|
|
clear_socket_set(socket_set *sa)
|
|
{
|
|
sa->curfds = 0;
|
|
}
|
|
|
|
static void
|
|
add_socket_to_set(socket_set *sa, int fd, int idx)
|
|
{
|
|
Assert(idx < sa->maxfds && idx == sa->curfds);
|
|
sa->pollfds[idx].fd = fd;
|
|
sa->pollfds[idx].events = POLLIN;
|
|
sa->pollfds[idx].revents = 0;
|
|
sa->curfds++;
|
|
}
|
|
|
|
static int
|
|
wait_on_socket_set(socket_set *sa, int64 usecs)
|
|
{
|
|
if (usecs > 0)
|
|
{
|
|
struct timespec timeout;
|
|
|
|
timeout.tv_sec = usecs / 1000000;
|
|
timeout.tv_nsec = (usecs % 1000000) * 1000;
|
|
return ppoll(sa->pollfds, sa->curfds, &timeout, NULL);
|
|
}
|
|
else
|
|
{
|
|
return ppoll(sa->pollfds, sa->curfds, NULL, NULL);
|
|
}
|
|
}
|
|
|
|
static bool
|
|
socket_has_input(socket_set *sa, int fd, int idx)
|
|
{
|
|
/*
|
|
* In some cases, threadRun will apply clear_socket_set and then try to
|
|
* apply socket_has_input anyway with arguments that it used before that,
|
|
* or might've used before that except that it exited its setup loop
|
|
* early. Hence, if the socket set is empty, silently return false
|
|
* regardless of the parameters. If it's not empty, we can Assert that
|
|
* the parameters match a previous call.
|
|
*/
|
|
if (sa->curfds == 0)
|
|
return false;
|
|
|
|
Assert(idx < sa->curfds && sa->pollfds[idx].fd == fd);
|
|
return (sa->pollfds[idx].revents & POLLIN) != 0;
|
|
}
|
|
|
|
#endif /* POLL_USING_PPOLL */
|
|
|
|
#ifdef POLL_USING_SELECT
|
|
|
|
static socket_set *
|
|
alloc_socket_set(int count)
|
|
{
|
|
return (socket_set *) pg_malloc0(sizeof(socket_set));
|
|
}
|
|
|
|
static void
|
|
free_socket_set(socket_set *sa)
|
|
{
|
|
pg_free(sa);
|
|
}
|
|
|
|
static void
|
|
clear_socket_set(socket_set *sa)
|
|
{
|
|
FD_ZERO(&sa->fds);
|
|
sa->maxfd = -1;
|
|
}
|
|
|
|
static void
|
|
add_socket_to_set(socket_set *sa, int fd, int idx)
|
|
{
|
|
if (fd < 0 || fd >= FD_SETSIZE)
|
|
{
|
|
/*
|
|
* Doing a hard exit here is a bit grotty, but it doesn't seem worth
|
|
* complicating the API to make it less grotty.
|
|
*/
|
|
pg_log_fatal("too many client connections for select()");
|
|
exit(1);
|
|
}
|
|
FD_SET(fd, &sa->fds);
|
|
if (fd > sa->maxfd)
|
|
sa->maxfd = fd;
|
|
}
|
|
|
|
static int
|
|
wait_on_socket_set(socket_set *sa, int64 usecs)
|
|
{
|
|
if (usecs > 0)
|
|
{
|
|
struct timeval timeout;
|
|
|
|
timeout.tv_sec = usecs / 1000000;
|
|
timeout.tv_usec = usecs % 1000000;
|
|
return select(sa->maxfd + 1, &sa->fds, NULL, NULL, &timeout);
|
|
}
|
|
else
|
|
{
|
|
return select(sa->maxfd + 1, &sa->fds, NULL, NULL, NULL);
|
|
}
|
|
}
|
|
|
|
static bool
|
|
socket_has_input(socket_set *sa, int fd, int idx)
|
|
{
|
|
return (FD_ISSET(fd, &sa->fds) != 0);
|
|
}
|
|
|
|
#endif /* POLL_USING_SELECT */
|
|
|
|
|
|
/* partial pthread implementation for Windows */
|
|
|
|
#ifdef WIN32
|
|
|
|
typedef struct win32_pthread
|
|
{
|
|
HANDLE handle;
|
|
void *(*routine) (void *);
|
|
void *arg;
|
|
void *result;
|
|
} win32_pthread;
|
|
|
|
static unsigned __stdcall
|
|
win32_pthread_run(void *arg)
|
|
{
|
|
win32_pthread *th = (win32_pthread *) arg;
|
|
|
|
th->result = th->routine(th->arg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
pthread_create(pthread_t *thread,
|
|
pthread_attr_t *attr,
|
|
void *(*start_routine) (void *),
|
|
void *arg)
|
|
{
|
|
int save_errno;
|
|
win32_pthread *th;
|
|
|
|
th = (win32_pthread *) pg_malloc(sizeof(win32_pthread));
|
|
th->routine = start_routine;
|
|
th->arg = arg;
|
|
th->result = NULL;
|
|
|
|
th->handle = (HANDLE) _beginthreadex(NULL, 0, win32_pthread_run, th, 0, NULL);
|
|
if (th->handle == NULL)
|
|
{
|
|
save_errno = errno;
|
|
free(th);
|
|
return save_errno;
|
|
}
|
|
|
|
*thread = th;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
pthread_join(pthread_t th, void **thread_return)
|
|
{
|
|
if (th == NULL || th->handle == NULL)
|
|
return errno = EINVAL;
|
|
|
|
if (WaitForSingleObject(th->handle, INFINITE) != WAIT_OBJECT_0)
|
|
{
|
|
_dosmaperr(GetLastError());
|
|
return errno;
|
|
}
|
|
|
|
if (thread_return)
|
|
*thread_return = th->result;
|
|
|
|
CloseHandle(th->handle);
|
|
free(th);
|
|
return 0;
|
|
}
|
|
|
|
#endif /* WIN32 */
|