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redis/src/redis-benchmark.c

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/* Redis benchmark utility.
*
* Copyright (c) 2009-Present, Redis Ltd.
* All rights reserved.
*
* Licensed under your choice of the Redis Source Available License 2.0
* (RSALv2) or the Server Side Public License v1 (SSPLv1).
*/
#include "fmacros.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <time.h>
#include <sys/time.h>
#include <signal.h>
#include <assert.h>
#include <math.h>
#include <pthread.h>
#include <sdscompat.h> /* Use hiredis' sds compat header that maps sds calls to their hi_ variants */
#include <sds.h> /* Use hiredis sds. */
#include "ae.h"
#include <hiredis.h>
#ifdef USE_OPENSSL
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <hiredis_ssl.h>
#endif
#include "adlist.h"
#include "dict.h"
#include "zmalloc.h"
#include "atomicvar.h"
#include "crc16_slottable.h"
#include "hdr_histogram.h"
#include "cli_common.h"
#include "mt19937-64.h"
#define UNUSED(V) ((void) V)
#define RANDPTR_INITIAL_SIZE 8
#define DEFAULT_LATENCY_PRECISION 3
#define MAX_LATENCY_PRECISION 4
#define MAX_THREADS 500
#define CLUSTER_SLOTS 16384
#define CONFIG_LATENCY_HISTOGRAM_MIN_VALUE 10L /* >= 10 usecs */
#define CONFIG_LATENCY_HISTOGRAM_MAX_VALUE 3000000L /* <= 3 secs(us precision) */
#define CONFIG_LATENCY_HISTOGRAM_INSTANT_MAX_VALUE 3000000L /* <= 3 secs(us precision) */
#define SHOW_THROUGHPUT_INTERVAL 250 /* 250ms */
#define CLIENT_GET_EVENTLOOP(c) \
(c->thread_id >= 0 ? config.threads[c->thread_id]->el : config.el)
struct benchmarkThread;
struct clusterNode;
struct redisConfig;
static struct config {
aeEventLoop *el;
cliConnInfo conn_info;
const char *hostsocket;
int tls;
struct cliSSLconfig sslconfig;
int numclients;
redisAtomic int liveclients;
int requests;
redisAtomic int requests_issued;
redisAtomic int requests_finished;
redisAtomic int previous_requests_finished;
int last_printed_bytes;
long long previous_tick;
int keysize;
int datasize;
int randomkeys;
int randomkeys_keyspacelen;
int keepalive;
int pipeline;
long long start;
long long totlatency;
const char *title;
list *clients;
int quiet;
int csv;
int loop;
int idlemode;
sds input_dbnumstr;
char *tests;
int stdinarg; /* get last arg from stdin. (-x option) */
int precision;
int num_threads;
struct benchmarkThread **threads;
int cluster_mode;
int cluster_node_count;
struct clusterNode **cluster_nodes;
struct redisConfig *redis_config;
struct hdr_histogram* latency_histogram;
struct hdr_histogram* current_sec_latency_histogram;
redisAtomic int is_fetching_slots;
redisAtomic int is_updating_slots;
redisAtomic int slots_last_update;
int enable_tracking;
pthread_mutex_t liveclients_mutex;
pthread_mutex_t is_updating_slots_mutex;
int resp3; /* use RESP3 */
} config;
typedef struct _client {
redisContext *context;
sds obuf;
char **randptr; /* Pointers to :rand: strings inside the command buf */
size_t randlen; /* Number of pointers in client->randptr */
size_t randfree; /* Number of unused pointers in client->randptr */
char **stagptr; /* Pointers to slot hashtags (cluster mode only) */
size_t staglen; /* Number of pointers in client->stagptr */
size_t stagfree; /* Number of unused pointers in client->stagptr */
size_t written; /* Bytes of 'obuf' already written */
long long start; /* Start time of a request */
long long latency; /* Request latency */
int pending; /* Number of pending requests (replies to consume) */
int prefix_pending; /* If non-zero, number of pending prefix commands. Commands
such as auth and select are prefixed to the pipeline of
benchmark commands and discarded after the first send. */
int prefixlen; /* Size in bytes of the pending prefix commands */
int thread_id;
struct clusterNode *cluster_node;
int slots_last_update;
} *client;
/* Threads. */
typedef struct benchmarkThread {
int index;
pthread_t thread;
aeEventLoop *el;
} benchmarkThread;
/* Cluster. */
typedef struct clusterNode {
char *ip;
int port;
sds name;
int flags;
sds replicate; /* Master ID if node is a slave */
int *slots;
int slots_count;
int *updated_slots; /* Used by updateClusterSlotsConfiguration */
int updated_slots_count; /* Used by updateClusterSlotsConfiguration */
int replicas_count;
sds *migrating; /* An array of sds where even strings are slots and odd
* strings are the destination node IDs. */
sds *importing; /* An array of sds where even strings are slots and odd
* strings are the source node IDs. */
int migrating_count; /* Length of the migrating array (migrating slots*2) */
int importing_count; /* Length of the importing array (importing slots*2) */
struct redisConfig *redis_config;
} clusterNode;
typedef struct redisConfig {
sds save;
sds appendonly;
} redisConfig;
/* Prototypes */
static void writeHandler(aeEventLoop *el, int fd, void *privdata, int mask);
static void createMissingClients(client c);
static benchmarkThread *createBenchmarkThread(int index);
static void freeBenchmarkThread(benchmarkThread *thread);
static void freeBenchmarkThreads(void);
static void *execBenchmarkThread(void *ptr);
static clusterNode *createClusterNode(char *ip, int port);
static redisConfig *getRedisConfig(const char *ip, int port,
const char *hostsocket);
static redisContext *getRedisContext(const char *ip, int port,
const char *hostsocket);
static void freeRedisConfig(redisConfig *cfg);
static int fetchClusterSlotsConfiguration(client c);
static void updateClusterSlotsConfiguration(void);
int showThroughput(struct aeEventLoop *eventLoop, long long id,
void *clientData);
/* Dict callbacks */
static uint64_t dictSdsHash(const void *key);
static int dictSdsKeyCompare(dict *d, const void *key1, const void *key2);
/* Implementation */
static long long ustime(void) {
struct timeval tv;
long long ust;
gettimeofday(&tv, NULL);
ust = ((long long)tv.tv_sec)*1000000;
ust += tv.tv_usec;
return ust;
}
static long long mstime(void) {
return ustime()/1000;
}
static uint64_t dictSdsHash(const void *key) {
return dictGenHashFunction((unsigned char*)key, sdslen((char*)key));
}
static int dictSdsKeyCompare(dict *d, const void *key1, const void *key2)
{
int l1,l2;
UNUSED(d);
l1 = sdslen((sds)key1);
l2 = sdslen((sds)key2);
if (l1 != l2) return 0;
return memcmp(key1, key2, l1) == 0;
}
static redisContext *getRedisContext(const char *ip, int port,
const char *hostsocket)
{
redisContext *ctx = NULL;
redisReply *reply = NULL;
if (hostsocket == NULL)
ctx = redisConnect(ip, port);
else
ctx = redisConnectUnix(hostsocket);
if (ctx == NULL || ctx->err) {
fprintf(stderr,"Could not connect to Redis at ");
char *err = (ctx != NULL ? ctx->errstr : "");
if (hostsocket == NULL)
fprintf(stderr,"%s:%d: %s\n",ip,port,err);
else
fprintf(stderr,"%s: %s\n",hostsocket,err);
goto cleanup;
}
if (config.tls==1) {
const char *err = NULL;
if (cliSecureConnection(ctx, config.sslconfig, &err) == REDIS_ERR && err) {
fprintf(stderr, "Could not negotiate a TLS connection: %s\n", err);
goto cleanup;
}
}
if (config.conn_info.auth == NULL)
return ctx;
if (config.conn_info.user == NULL)
reply = redisCommand(ctx,"AUTH %s", config.conn_info.auth);
else
reply = redisCommand(ctx,"AUTH %s %s", config.conn_info.user, config.conn_info.auth);
if (reply != NULL) {
if (reply->type == REDIS_REPLY_ERROR) {
if (hostsocket == NULL)
fprintf(stderr, "Node %s:%d replied with error:\n%s\n", ip, port, reply->str);
else
fprintf(stderr, "Node %s replied with error:\n%s\n", hostsocket, reply->str);
freeReplyObject(reply);
redisFree(ctx);
exit(1);
}
freeReplyObject(reply);
return ctx;
}
fprintf(stderr, "ERROR: failed to fetch reply from ");
if (hostsocket == NULL)
fprintf(stderr, "%s:%d\n", ip, port);
else
fprintf(stderr, "%s\n", hostsocket);
cleanup:
freeReplyObject(reply);
redisFree(ctx);
return NULL;
}
static redisConfig *getRedisConfig(const char *ip, int port,
const char *hostsocket)
{
redisConfig *cfg = zcalloc(sizeof(*cfg));
if (!cfg) return NULL;
redisContext *c = NULL;
redisReply *reply = NULL, *sub_reply = NULL;
c = getRedisContext(ip, port, hostsocket);
if (c == NULL) {
freeRedisConfig(cfg);
exit(1);
}
redisAppendCommand(c, "CONFIG GET %s", "save");
redisAppendCommand(c, "CONFIG GET %s", "appendonly");
int abort_test = 0;
int i = 0;
void *r = NULL;
for (; i < 2; i++) {
int res = redisGetReply(c, &r);
if (reply) freeReplyObject(reply);
reply = res == REDIS_OK ? ((redisReply *) r) : NULL;
if (res != REDIS_OK || !r) goto fail;
if (reply->type == REDIS_REPLY_ERROR) {
goto fail;
}
if (reply->type != REDIS_REPLY_ARRAY || reply->elements < 2) goto fail;
sub_reply = reply->element[1];
char *value = sub_reply->str;
if (!value) value = "";
switch (i) {
case 0: cfg->save = sdsnew(value); break;
case 1: cfg->appendonly = sdsnew(value); break;
}
}
freeReplyObject(reply);
redisFree(c);
return cfg;
fail:
if (reply && reply->type == REDIS_REPLY_ERROR &&
!strncmp(reply->str,"NOAUTH",6)) {
if (hostsocket == NULL)
fprintf(stderr, "Node %s:%d replied with error:\n%s\n", ip, port, reply->str);
else
fprintf(stderr, "Node %s replied with error:\n%s\n", hostsocket, reply->str);
abort_test = 1;
}
freeReplyObject(reply);
redisFree(c);
freeRedisConfig(cfg);
if (abort_test) exit(1);
return NULL;
}
static void freeRedisConfig(redisConfig *cfg) {
if (cfg->save) sdsfree(cfg->save);
if (cfg->appendonly) sdsfree(cfg->appendonly);
zfree(cfg);
}
static void freeClient(client c) {
aeEventLoop *el = CLIENT_GET_EVENTLOOP(c);
listNode *ln;
aeDeleteFileEvent(el,c->context->fd,AE_WRITABLE);
aeDeleteFileEvent(el,c->context->fd,AE_READABLE);
if (c->thread_id >= 0) {
int requests_finished = 0;
atomicGet(config.requests_finished, requests_finished);
if (requests_finished >= config.requests) {
aeStop(el);
}
}
redisFree(c->context);
sdsfree(c->obuf);
zfree(c->randptr);
zfree(c->stagptr);
zfree(c);
if (config.num_threads) pthread_mutex_lock(&(config.liveclients_mutex));
config.liveclients--;
ln = listSearchKey(config.clients,c);
assert(ln != NULL);
listDelNode(config.clients,ln);
if (config.num_threads) pthread_mutex_unlock(&(config.liveclients_mutex));
}
static void freeAllClients(void) {
listNode *ln = config.clients->head, *next;
while(ln) {
next = ln->next;
freeClient(ln->value);
ln = next;
}
}
static void resetClient(client c) {
aeEventLoop *el = CLIENT_GET_EVENTLOOP(c);
aeDeleteFileEvent(el,c->context->fd,AE_WRITABLE);
aeDeleteFileEvent(el,c->context->fd,AE_READABLE);
aeCreateFileEvent(el,c->context->fd,AE_WRITABLE,writeHandler,c);
c->written = 0;
c->pending = config.pipeline;
}
static void randomizeClientKey(client c) {
size_t i;
for (i = 0; i < c->randlen; i++) {
char *p = c->randptr[i]+11;
size_t r = 0;
if (config.randomkeys_keyspacelen != 0)
r = random() % config.randomkeys_keyspacelen;
size_t j;
for (j = 0; j < 12; j++) {
*p = '0'+r%10;
r/=10;
p--;
}
}
}
static void setClusterKeyHashTag(client c) {
assert(c->thread_id >= 0);
clusterNode *node = c->cluster_node;
assert(node);
int is_updating_slots = 0;
atomicGet(config.is_updating_slots, is_updating_slots);
/* If updateClusterSlotsConfiguration is updating the slots array,
* call updateClusterSlotsConfiguration is order to block the thread
* since the mutex is locked. When the slots will be updated by the
* thread that's actually performing the update, the execution of
* updateClusterSlotsConfiguration won't actually do anything, since
* the updated_slots_count array will be already NULL. */
if (is_updating_slots) updateClusterSlotsConfiguration();
int slot = node->slots[rand() % node->slots_count];
const char *tag = crc16_slot_table[slot];
int taglen = strlen(tag);
size_t i;
for (i = 0; i < c->staglen; i++) {
char *p = c->stagptr[i] + 1;
p[0] = tag[0];
p[1] = (taglen >= 2 ? tag[1] : '}');
p[2] = (taglen == 3 ? tag[2] : '}');
}
}
static void clientDone(client c) {
int requests_finished = 0;
atomicGet(config.requests_finished, requests_finished);
if (requests_finished >= config.requests) {
freeClient(c);
if (!config.num_threads && config.el) aeStop(config.el);
return;
}
if (config.keepalive) {
resetClient(c);
} else {
if (config.num_threads) pthread_mutex_lock(&(config.liveclients_mutex));
config.liveclients--;
createMissingClients(c);
config.liveclients++;
if (config.num_threads)
pthread_mutex_unlock(&(config.liveclients_mutex));
freeClient(c);
}
}
static void readHandler(aeEventLoop *el, int fd, void *privdata, int mask) {
client c = privdata;
void *reply = NULL;
UNUSED(el);
UNUSED(fd);
UNUSED(mask);
/* Calculate latency only for the first read event. This means that the
* server already sent the reply and we need to parse it. Parsing overhead
* is not part of the latency, so calculate it only once, here. */
if (c->latency < 0) c->latency = ustime()-(c->start);
if (redisBufferRead(c->context) != REDIS_OK) {
fprintf(stderr,"Error: %s\n",c->context->errstr);
exit(1);
} else {
while(c->pending) {
if (redisGetReply(c->context,&reply) != REDIS_OK) {
fprintf(stderr,"Error: %s\n",c->context->errstr);
exit(1);
}
if (reply != NULL) {
if (reply == (void*)REDIS_REPLY_ERROR) {
fprintf(stderr,"Unexpected error reply, exiting...\n");
exit(1);
}
redisReply *r = reply;
if (r->type == REDIS_REPLY_ERROR) {
/* Try to update slots configuration if reply error is
* MOVED/ASK/CLUSTERDOWN and the key(s) used by the command
* contain(s) the slot hash tag.
* If the error is not topology-update related then we
* immediately exit to avoid false results. */
if (c->cluster_node && c->staglen) {
int fetch_slots = 0, do_wait = 0;
if (!strncmp(r->str,"MOVED",5) || !strncmp(r->str,"ASK",3))
fetch_slots = 1;
else if (!strncmp(r->str,"CLUSTERDOWN",11)) {
/* Usually the cluster is able to recover itself after
* a CLUSTERDOWN error, so try to sleep one second
* before requesting the new configuration. */
fetch_slots = 1;
do_wait = 1;
fprintf(stderr, "Error from server %s:%d: %s.\n",
c->cluster_node->ip,
c->cluster_node->port,
r->str);
}
if (do_wait) sleep(1);
if (fetch_slots && !fetchClusterSlotsConfiguration(c))
exit(1);
} else {
if (c->cluster_node) {
fprintf(stderr, "Error from server %s:%d: %s\n",
c->cluster_node->ip,
c->cluster_node->port,
r->str);
} else fprintf(stderr, "Error from server: %s\n", r->str);
exit(1);
}
}
freeReplyObject(reply);
/* This is an OK for prefix commands such as auth and select.*/
if (c->prefix_pending > 0) {
c->prefix_pending--;
c->pending--;
/* Discard prefix commands on first response.*/
if (c->prefixlen > 0) {
size_t j;
sdsrange(c->obuf, c->prefixlen, -1);
/* We also need to fix the pointers to the strings
* we need to randomize. */
for (j = 0; j < c->randlen; j++)
c->randptr[j] -= c->prefixlen;
/* Fix the pointers to the slot hash tags */
for (j = 0; j < c->staglen; j++)
c->stagptr[j] -= c->prefixlen;
c->prefixlen = 0;
}
continue;
}
int requests_finished = 0;
atomicGetIncr(config.requests_finished, requests_finished, 1);
if (requests_finished < config.requests){
if (config.num_threads == 0) {
hdr_record_value(
config.latency_histogram, // Histogram to record to
(long)c->latency<=CONFIG_LATENCY_HISTOGRAM_MAX_VALUE ? (long)c->latency : CONFIG_LATENCY_HISTOGRAM_MAX_VALUE); // Value to record
hdr_record_value(
config.current_sec_latency_histogram, // Histogram to record to
(long)c->latency<=CONFIG_LATENCY_HISTOGRAM_INSTANT_MAX_VALUE ? (long)c->latency : CONFIG_LATENCY_HISTOGRAM_INSTANT_MAX_VALUE); // Value to record
} else {
hdr_record_value_atomic(
config.latency_histogram, // Histogram to record to
(long)c->latency<=CONFIG_LATENCY_HISTOGRAM_MAX_VALUE ? (long)c->latency : CONFIG_LATENCY_HISTOGRAM_MAX_VALUE); // Value to record
hdr_record_value_atomic(
config.current_sec_latency_histogram, // Histogram to record to
(long)c->latency<=CONFIG_LATENCY_HISTOGRAM_INSTANT_MAX_VALUE ? (long)c->latency : CONFIG_LATENCY_HISTOGRAM_INSTANT_MAX_VALUE); // Value to record
}
}
c->pending--;
if (c->pending == 0) {
clientDone(c);
break;
}
} else {
break;
}
}
}
}
static void writeHandler(aeEventLoop *el, int fd, void *privdata, int mask) {
client c = privdata;
UNUSED(el);
UNUSED(fd);
UNUSED(mask);
/* Initialize request when nothing was written. */
if (c->written == 0) {
/* Enforce upper bound to number of requests. */
int requests_issued = 0;
atomicGetIncr(config.requests_issued, requests_issued, config.pipeline);
if (requests_issued >= config.requests) {
return;
}
/* Really initialize: randomize keys and set start time. */
if (config.randomkeys) randomizeClientKey(c);
if (config.cluster_mode && c->staglen > 0) setClusterKeyHashTag(c);
atomicGet(config.slots_last_update, c->slots_last_update);
c->start = ustime();
c->latency = -1;
}
const ssize_t buflen = sdslen(c->obuf);
const ssize_t writeLen = buflen-c->written;
if (writeLen > 0) {
void *ptr = c->obuf+c->written;
while(1) {
/* Optimistically try to write before checking if the file descriptor
* is actually writable. At worst we get EAGAIN. */
const ssize_t nwritten = cliWriteConn(c->context,ptr,writeLen);
if (nwritten != writeLen) {
if (nwritten == -1 && errno != EAGAIN) {
if (errno != EPIPE)
fprintf(stderr, "Error writing to the server: %s\n", strerror(errno));
freeClient(c);
return;
} else if (nwritten > 0) {
c->written += nwritten;
return;
}
} else {
aeDeleteFileEvent(el,c->context->fd,AE_WRITABLE);
aeCreateFileEvent(el,c->context->fd,AE_READABLE,readHandler,c);
return;
}
}
}
}
/* Create a benchmark client, configured to send the command passed as 'cmd' of
* 'len' bytes.
*
* The command is copied N times in the client output buffer (that is reused
* again and again to send the request to the server) accordingly to the configured
* pipeline size.
*
* Also an initial SELECT command is prepended in order to make sure the right
* database is selected, if needed. The initial SELECT will be discarded as soon
* as the first reply is received.
*
* To create a client from scratch, the 'from' pointer is set to NULL. If instead
* we want to create a client using another client as reference, the 'from' pointer
* points to the client to use as reference. In such a case the following
* information is take from the 'from' client:
*
* 1) The command line to use.
* 2) The offsets of the __rand_int__ elements inside the command line, used
* for arguments randomization.
*
* Even when cloning another client, prefix commands are applied if needed.*/
static client createClient(char *cmd, size_t len, client from, int thread_id) {
int j;
int is_cluster_client = (config.cluster_mode && thread_id >= 0);
client c = zmalloc(sizeof(struct _client));
const char *ip = NULL;
int port = 0;
c->cluster_node = NULL;
if (config.hostsocket == NULL || is_cluster_client) {
if (!is_cluster_client) {
ip = config.conn_info.hostip;
port = config.conn_info.hostport;
} else {
int node_idx = 0;
if (config.num_threads < config.cluster_node_count)
node_idx = config.liveclients % config.cluster_node_count;
else
node_idx = thread_id % config.cluster_node_count;
clusterNode *node = config.cluster_nodes[node_idx];
assert(node != NULL);
ip = (const char *) node->ip;
port = node->port;
c->cluster_node = node;
}
c->context = redisConnectNonBlock(ip,port);
} else {
c->context = redisConnectUnixNonBlock(config.hostsocket);
}
if (c->context->err) {
fprintf(stderr,"Could not connect to Redis at ");
if (config.hostsocket == NULL || is_cluster_client)
fprintf(stderr,"%s:%d: %s\n",ip,port,c->context->errstr);
else
fprintf(stderr,"%s: %s\n",config.hostsocket,c->context->errstr);
exit(1);
}
if (config.tls==1) {
const char *err = NULL;
if (cliSecureConnection(c->context, config.sslconfig, &err) == REDIS_ERR && err) {
fprintf(stderr, "Could not negotiate a TLS connection: %s\n", err);
exit(1);
}
}
c->thread_id = thread_id;
/* Suppress hiredis cleanup of unused buffers for max speed. */
c->context->reader->maxbuf = 0;
/* Build the request buffer:
* Queue N requests accordingly to the pipeline size, or simply clone
* the example client buffer. */
c->obuf = sdsempty();
/* Prefix the request buffer with AUTH and/or SELECT commands, if applicable.
* These commands are discarded after the first response, so if the client is
* reused the commands will not be used again. */
c->prefix_pending = 0;
if (config.conn_info.auth) {
char *buf = NULL;
int len;
if (config.conn_info.user == NULL)
len = redisFormatCommand(&buf, "AUTH %s", config.conn_info.auth);
else
len = redisFormatCommand(&buf, "AUTH %s %s",
config.conn_info.user, config.conn_info.auth);
c->obuf = sdscatlen(c->obuf, buf, len);
free(buf);
c->prefix_pending++;
}
if (config.enable_tracking) {
char *buf = NULL;
int len = redisFormatCommand(&buf, "CLIENT TRACKING on");
c->obuf = sdscatlen(c->obuf, buf, len);
free(buf);
c->prefix_pending++;
}
/* If a DB number different than zero is selected, prefix our request
* buffer with the SELECT command, that will be discarded the first
* time the replies are received, so if the client is reused the
* SELECT command will not be used again. */
if (config.conn_info.input_dbnum != 0 && !is_cluster_client) {
c->obuf = sdscatprintf(c->obuf,"*2\r\n$6\r\nSELECT\r\n$%d\r\n%s\r\n",
(int)sdslen(config.input_dbnumstr),config.input_dbnumstr);
c->prefix_pending++;
}
if (config.resp3) {
char *buf = NULL;
int len = redisFormatCommand(&buf, "HELLO 3");
c->obuf = sdscatlen(c->obuf, buf, len);
free(buf);
c->prefix_pending++;
}
c->prefixlen = sdslen(c->obuf);
/* Append the request itself. */
if (from) {
c->obuf = sdscatlen(c->obuf,
from->obuf+from->prefixlen,
sdslen(from->obuf)-from->prefixlen);
} else {
for (j = 0; j < config.pipeline; j++)
c->obuf = sdscatlen(c->obuf,cmd,len);
}
c->written = 0;
c->pending = config.pipeline+c->prefix_pending;
c->randptr = NULL;
c->randlen = 0;
c->stagptr = NULL;
c->staglen = 0;
/* Find substrings in the output buffer that need to be randomized. */
if (config.randomkeys) {
if (from) {
c->randlen = from->randlen;
c->randfree = 0;
c->randptr = zmalloc(sizeof(char*)*c->randlen);
/* copy the offsets. */
for (j = 0; j < (int)c->randlen; j++) {
c->randptr[j] = c->obuf + (from->randptr[j]-from->obuf);
/* Adjust for the different select prefix length. */
c->randptr[j] += c->prefixlen - from->prefixlen;
}
} else {
char *p = c->obuf;
c->randlen = 0;
c->randfree = RANDPTR_INITIAL_SIZE;
c->randptr = zmalloc(sizeof(char*)*c->randfree);
while ((p = strstr(p,"__rand_int__")) != NULL) {
if (c->randfree == 0) {
c->randptr = zrealloc(c->randptr,sizeof(char*)*c->randlen*2);
c->randfree += c->randlen;
}
c->randptr[c->randlen++] = p;
c->randfree--;
p += 12; /* 12 is strlen("__rand_int__). */
}
}
}
/* If cluster mode is enabled, set slot hashtags pointers. */
if (config.cluster_mode) {
if (from) {
c->staglen = from->staglen;
c->stagfree = 0;
c->stagptr = zmalloc(sizeof(char*)*c->staglen);
/* copy the offsets. */
for (j = 0; j < (int)c->staglen; j++) {
c->stagptr[j] = c->obuf + (from->stagptr[j]-from->obuf);
/* Adjust for the different select prefix length. */
c->stagptr[j] += c->prefixlen - from->prefixlen;
}
} else {
char *p = c->obuf;
c->staglen = 0;
c->stagfree = RANDPTR_INITIAL_SIZE;
c->stagptr = zmalloc(sizeof(char*)*c->stagfree);
while ((p = strstr(p,"{tag}")) != NULL) {
if (c->stagfree == 0) {
c->stagptr = zrealloc(c->stagptr,
sizeof(char*) * c->staglen*2);
c->stagfree += c->staglen;
}
c->stagptr[c->staglen++] = p;
c->stagfree--;
p += 5; /* 5 is strlen("{tag}"). */
}
}
}
aeEventLoop *el = NULL;
if (thread_id < 0) el = config.el;
else {
benchmarkThread *thread = config.threads[thread_id];
el = thread->el;
}
if (config.idlemode == 0)
aeCreateFileEvent(el,c->context->fd,AE_WRITABLE,writeHandler,c);
else
/* In idle mode, clients still need to register readHandler for catching errors */
aeCreateFileEvent(el,c->context->fd,AE_READABLE,readHandler,c);
listAddNodeTail(config.clients,c);
atomicIncr(config.liveclients, 1);
atomicGet(config.slots_last_update, c->slots_last_update);
return c;
}
static void createMissingClients(client c) {
int n = 0;
while(config.liveclients < config.numclients) {
int thread_id = -1;
if (config.num_threads)
thread_id = config.liveclients % config.num_threads;
createClient(NULL,0,c,thread_id);
/* Listen backlog is quite limited on most systems */
if (++n > 64) {
usleep(50000);
n = 0;
}
}
}
static void showLatencyReport(void) {
const float reqpersec = (float)config.requests_finished/((float)config.totlatency/1000.0f);
const float p0 = ((float) hdr_min(config.latency_histogram))/1000.0f;
const float p50 = hdr_value_at_percentile(config.latency_histogram, 50.0 )/1000.0f;
const float p95 = hdr_value_at_percentile(config.latency_histogram, 95.0 )/1000.0f;
const float p99 = hdr_value_at_percentile(config.latency_histogram, 99.0 )/1000.0f;
const float p100 = ((float) hdr_max(config.latency_histogram))/1000.0f;
const float avg = hdr_mean(config.latency_histogram)/1000.0f;
if (!config.quiet && !config.csv) {
printf("%*s\r", config.last_printed_bytes, " "); // ensure there is a clean line
printf("====== %s ======\n", config.title);
printf(" %d requests completed in %.2f seconds\n", config.requests_finished,
(float)config.totlatency/1000);
printf(" %d parallel clients\n", config.numclients);
printf(" %d bytes payload\n", config.datasize);
printf(" keep alive: %d\n", config.keepalive);
if (config.cluster_mode) {
printf(" cluster mode: yes (%d masters)\n",
config.cluster_node_count);
int m ;
for (m = 0; m < config.cluster_node_count; m++) {
clusterNode *node = config.cluster_nodes[m];
redisConfig *cfg = node->redis_config;
if (cfg == NULL) continue;
printf(" node [%d] configuration:\n",m );
printf(" save: %s\n",
sdslen(cfg->save) ? cfg->save : "NONE");
printf(" appendonly: %s\n", cfg->appendonly);
}
} else {
if (config.redis_config) {
printf(" host configuration \"save\": %s\n",
config.redis_config->save);
printf(" host configuration \"appendonly\": %s\n",
config.redis_config->appendonly);
}
}
printf(" multi-thread: %s\n", (config.num_threads ? "yes" : "no"));
if (config.num_threads)
printf(" threads: %d\n", config.num_threads);
printf("\n");
printf("Latency by percentile distribution:\n");
struct hdr_iter iter;
long long previous_cumulative_count = -1;
const long long total_count = config.latency_histogram->total_count;
hdr_iter_percentile_init(&iter, config.latency_histogram, 1);
struct hdr_iter_percentiles *percentiles = &iter.specifics.percentiles;
while (hdr_iter_next(&iter))
{
const double value = iter.highest_equivalent_value / 1000.0f;
const double percentile = percentiles->percentile;
const long long cumulative_count = iter.cumulative_count;
if( previous_cumulative_count != cumulative_count || cumulative_count == total_count ){
printf("%3.3f%% <= %.3f milliseconds (cumulative count %lld)\n", percentile, value, cumulative_count);
}
previous_cumulative_count = cumulative_count;
}
printf("\n");
printf("Cumulative distribution of latencies:\n");
previous_cumulative_count = -1;
hdr_iter_linear_init(&iter, config.latency_histogram, 100);
while (hdr_iter_next(&iter))
{
const double value = iter.highest_equivalent_value / 1000.0f;
const long long cumulative_count = iter.cumulative_count;
const double percentile = ((double)cumulative_count/(double)total_count)*100.0;
if( previous_cumulative_count != cumulative_count || cumulative_count == total_count ){
printf("%3.3f%% <= %.3f milliseconds (cumulative count %lld)\n", percentile, value, cumulative_count);
}
/* After the 2 milliseconds latency to have percentages split
* by decimals will just add a lot of noise to the output. */
if(iter.highest_equivalent_value > 2000){
hdr_iter_linear_set_value_units_per_bucket(&iter,1000);
}
previous_cumulative_count = cumulative_count;
}
printf("\n");
printf("Summary:\n");
printf(" throughput summary: %.2f requests per second\n", reqpersec);
printf(" latency summary (msec):\n");
printf(" %9s %9s %9s %9s %9s %9s\n", "avg", "min", "p50", "p95", "p99", "max");
printf(" %9.3f %9.3f %9.3f %9.3f %9.3f %9.3f\n", avg, p0, p50, p95, p99, p100);
} else if (config.csv) {
printf("\"%s\",\"%.2f\",\"%.3f\",\"%.3f\",\"%.3f\",\"%.3f\",\"%.3f\",\"%.3f\"\n", config.title, reqpersec, avg, p0, p50, p95, p99, p100);
} else {
printf("%*s\r", config.last_printed_bytes, " "); // ensure there is a clean line
printf("%s: %.2f requests per second, p50=%.3f msec\n", config.title, reqpersec, p50);
}
}
static void initBenchmarkThreads(void) {
int i;
if (config.threads) freeBenchmarkThreads();
config.threads = zmalloc(config.num_threads * sizeof(benchmarkThread*));
for (i = 0; i < config.num_threads; i++) {
benchmarkThread *thread = createBenchmarkThread(i);
config.threads[i] = thread;
}
}
static void startBenchmarkThreads(void) {
int i;
for (i = 0; i < config.num_threads; i++) {
benchmarkThread *t = config.threads[i];
if (pthread_create(&(t->thread), NULL, execBenchmarkThread, t)){
fprintf(stderr, "FATAL: Failed to start thread %d.\n", i);
exit(1);
}
}
for (i = 0; i < config.num_threads; i++)
pthread_join(config.threads[i]->thread, NULL);
}
static void benchmark(const char *title, char *cmd, int len) {
client c;
config.title = title;
config.requests_issued = 0;
config.requests_finished = 0;
config.previous_requests_finished = 0;
config.last_printed_bytes = 0;
hdr_init(
CONFIG_LATENCY_HISTOGRAM_MIN_VALUE, // Minimum value
CONFIG_LATENCY_HISTOGRAM_MAX_VALUE, // Maximum value
config.precision, // Number of significant figures
&config.latency_histogram); // Pointer to initialise
hdr_init(
CONFIG_LATENCY_HISTOGRAM_MIN_VALUE, // Minimum value
CONFIG_LATENCY_HISTOGRAM_INSTANT_MAX_VALUE, // Maximum value
config.precision, // Number of significant figures
&config.current_sec_latency_histogram); // Pointer to initialise
if (config.num_threads) initBenchmarkThreads();
int thread_id = config.num_threads > 0 ? 0 : -1;
c = createClient(cmd,len,NULL,thread_id);
createMissingClients(c);
config.start = mstime();
if (!config.num_threads) aeMain(config.el);
else startBenchmarkThreads();
config.totlatency = mstime()-config.start;
showLatencyReport();
freeAllClients();
if (config.threads) freeBenchmarkThreads();
if (config.current_sec_latency_histogram) hdr_close(config.current_sec_latency_histogram);
if (config.latency_histogram) hdr_close(config.latency_histogram);
}
/* Thread functions. */
static benchmarkThread *createBenchmarkThread(int index) {
benchmarkThread *thread = zmalloc(sizeof(*thread));
if (thread == NULL) return NULL;
thread->index = index;
thread->el = aeCreateEventLoop(1024*10);
aeCreateTimeEvent(thread->el,1,showThroughput,(void *)thread,NULL);
return thread;
}
static void freeBenchmarkThread(benchmarkThread *thread) {
if (thread->el) aeDeleteEventLoop(thread->el);
zfree(thread);
}
static void freeBenchmarkThreads(void) {
int i = 0;
for (; i < config.num_threads; i++) {
benchmarkThread *thread = config.threads[i];
if (thread) freeBenchmarkThread(thread);
}
zfree(config.threads);
config.threads = NULL;
}
static void *execBenchmarkThread(void *ptr) {
benchmarkThread *thread = (benchmarkThread *) ptr;
aeMain(thread->el);
return NULL;
}
/* Cluster helper functions. */
static clusterNode *createClusterNode(char *ip, int port) {
clusterNode *node = zmalloc(sizeof(*node));
if (!node) return NULL;
node->ip = ip;
node->port = port;
node->name = NULL;
node->flags = 0;
node->replicate = NULL;
node->replicas_count = 0;
node->slots = zmalloc(CLUSTER_SLOTS * sizeof(int));
node->slots_count = 0;
node->updated_slots = NULL;
node->updated_slots_count = 0;
node->migrating = NULL;
node->importing = NULL;
node->migrating_count = 0;
node->importing_count = 0;
node->redis_config = NULL;
return node;
}
static void freeClusterNode(clusterNode *node) {
int i;
if (node->name) sdsfree(node->name);
if (node->replicate) sdsfree(node->replicate);
if (node->migrating != NULL) {
for (i = 0; i < node->migrating_count; i++) sdsfree(node->migrating[i]);
zfree(node->migrating);
}
if (node->importing != NULL) {
for (i = 0; i < node->importing_count; i++) sdsfree(node->importing[i]);
zfree(node->importing);
}
/* If the node is not the reference node, that uses the address from
* config.conn_info.hostip and config.conn_info.hostport, then the node ip has been
* allocated by fetchClusterConfiguration, so it must be freed. */
if (node->ip && strcmp(node->ip, config.conn_info.hostip) != 0) sdsfree(node->ip);
if (node->redis_config != NULL) freeRedisConfig(node->redis_config);
zfree(node->slots);
zfree(node);
}
static void freeClusterNodes(void) {
int i = 0;
for (; i < config.cluster_node_count; i++) {
clusterNode *n = config.cluster_nodes[i];
if (n) freeClusterNode(n);
}
zfree(config.cluster_nodes);
config.cluster_nodes = NULL;
}
static clusterNode **addClusterNode(clusterNode *node) {
int count = config.cluster_node_count + 1;
config.cluster_nodes = zrealloc(config.cluster_nodes,
count * sizeof(*node));
if (!config.cluster_nodes) return NULL;
config.cluster_nodes[config.cluster_node_count++] = node;
return config.cluster_nodes;
}
/* TODO: This should be refactored to use CLUSTER SLOTS, the migrating/importing
* information is anyway not used.
*/
static int fetchClusterConfiguration(void) {
int success = 1;
redisContext *ctx = NULL;
redisReply *reply = NULL;
ctx = getRedisContext(config.conn_info.hostip, config.conn_info.hostport, config.hostsocket);
if (ctx == NULL) {
exit(1);
}
clusterNode *firstNode = createClusterNode((char *) config.conn_info.hostip,
config.conn_info.hostport);
if (!firstNode) {success = 0; goto cleanup;}
reply = redisCommand(ctx, "CLUSTER NODES");
success = (reply != NULL);
if (!success) goto cleanup;
success = (reply->type != REDIS_REPLY_ERROR);
if (!success) {
if (config.hostsocket == NULL) {
fprintf(stderr, "Cluster node %s:%d replied with error:\n%s\n",
config.conn_info.hostip, config.conn_info.hostport, reply->str);
} else {
fprintf(stderr, "Cluster node %s replied with error:\n%s\n",
config.hostsocket, reply->str);
}
goto cleanup;
}
char *lines = reply->str, *p, *line;
while ((p = strstr(lines, "\n")) != NULL) {
*p = '\0';
line = lines;
lines = p + 1;
char *name = NULL, *addr = NULL, *flags = NULL, *master_id = NULL;
int i = 0;
while ((p = strchr(line, ' ')) != NULL) {
*p = '\0';
char *token = line;
line = p + 1;
switch(i++){
case 0: name = token; break;
case 1: addr = token; break;
case 2: flags = token; break;
case 3: master_id = token; break;
}
if (i == 8) break; // Slots
}
if (!flags) {
fprintf(stderr, "Invalid CLUSTER NODES reply: missing flags.\n");
success = 0;
goto cleanup;
}
int myself = (strstr(flags, "myself") != NULL);
int is_replica = (strstr(flags, "slave") != NULL ||
(master_id != NULL && master_id[0] != '-'));
if (is_replica) continue;
if (addr == NULL) {
fprintf(stderr, "Invalid CLUSTER NODES reply: missing addr.\n");
success = 0;
goto cleanup;
}
clusterNode *node = NULL;
char *ip = NULL;
int port = 0;
char *paddr = strrchr(addr, ':');
if (paddr != NULL) {
*paddr = '\0';
ip = addr;
addr = paddr + 1;
/* If internal bus is specified, then just drop it. */
if ((paddr = strchr(addr, '@')) != NULL) *paddr = '\0';
port = atoi(addr);
}
if (myself) {
node = firstNode;
if (ip != NULL && strcmp(node->ip, ip) != 0) {
node->ip = sdsnew(ip);
node->port = port;
}
} else {
node = createClusterNode(sdsnew(ip), port);
}
if (node == NULL) {
success = 0;
goto cleanup;
}
if (name != NULL) node->name = sdsnew(name);
if (i == 8) {
int remaining = strlen(line);
while (remaining > 0) {
p = strchr(line, ' ');
if (p == NULL) p = line + remaining;
remaining -= (p - line);
char *slotsdef = line;
*p = '\0';
if (remaining) {
line = p + 1;
remaining--;
} else line = p;
char *dash = NULL;
if (slotsdef[0] == '[') {
slotsdef++;
if ((p = strstr(slotsdef, "->-"))) { // Migrating
*p = '\0';
p += 3;
char *closing_bracket = strchr(p, ']');
if (closing_bracket) *closing_bracket = '\0';
sds slot = sdsnew(slotsdef);
sds dst = sdsnew(p);
node->migrating_count += 2;
node->migrating =
zrealloc(node->migrating,
(node->migrating_count * sizeof(sds)));
node->migrating[node->migrating_count - 2] =
slot;
node->migrating[node->migrating_count - 1] =
dst;
} else if ((p = strstr(slotsdef, "-<-"))) {//Importing
*p = '\0';
p += 3;
char *closing_bracket = strchr(p, ']');
if (closing_bracket) *closing_bracket = '\0';
sds slot = sdsnew(slotsdef);
sds src = sdsnew(p);
node->importing_count += 2;
node->importing = zrealloc(node->importing,
(node->importing_count * sizeof(sds)));
node->importing[node->importing_count - 2] =
slot;
node->importing[node->importing_count - 1] =
src;
}
} else if ((dash = strchr(slotsdef, '-')) != NULL) {
p = dash;
int start, stop;
*p = '\0';
start = atoi(slotsdef);
stop = atoi(p + 1);
while (start <= stop) {
int slot = start++;
node->slots[node->slots_count++] = slot;
}
} else if (p > slotsdef) {
int slot = atoi(slotsdef);
node->slots[node->slots_count++] = slot;
}
}
}
if (node->slots_count == 0) {
fprintf(stderr,
"WARNING: Master node %s:%d has no slots, skipping...\n",
node->ip, node->port);
continue;
}
if (!addClusterNode(node)) {
success = 0;
goto cleanup;
}
}
cleanup:
if (ctx) redisFree(ctx);
if (!success) {
if (config.cluster_nodes) freeClusterNodes();
}
if (reply) freeReplyObject(reply);
return success;
}
/* Request the current cluster slots configuration by calling CLUSTER SLOTS
* and atomically update the slots after a successful reply. */
static int fetchClusterSlotsConfiguration(client c) {
UNUSED(c);
int success = 1, is_fetching_slots = 0, last_update = 0;
size_t i;
atomicGet(config.slots_last_update, last_update);
if (c->slots_last_update < last_update) {
c->slots_last_update = last_update;
return -1;
}
redisReply *reply = NULL;
atomicGetIncr(config.is_fetching_slots, is_fetching_slots, 1);
if (is_fetching_slots) return -1; //TODO: use other codes || errno ?
atomicSet(config.is_fetching_slots, 1);
fprintf(stderr,
"WARNING: Cluster slots configuration changed, fetching new one...\n");
const char *errmsg = "Failed to update cluster slots configuration";
static dictType dtype = {
dictSdsHash, /* hash function */
NULL, /* key dup */
NULL, /* val dup */
dictSdsKeyCompare, /* key compare */
NULL, /* key destructor */
NULL, /* val destructor */
NULL /* allow to expand */
};
/* printf("[%d] fetchClusterSlotsConfiguration\n", c->thread_id); */
dict *masters = dictCreate(&dtype);
redisContext *ctx = NULL;
for (i = 0; i < (size_t) config.cluster_node_count; i++) {
clusterNode *node = config.cluster_nodes[i];
assert(node->ip != NULL);
assert(node->name != NULL);
assert(node->port);
/* Use first node as entry point to connect to. */
if (ctx == NULL) {
ctx = getRedisContext(node->ip, node->port, NULL);
if (!ctx) {
success = 0;
goto cleanup;
}
}
if (node->updated_slots != NULL)
zfree(node->updated_slots);
node->updated_slots = NULL;
node->updated_slots_count = 0;
dictReplace(masters, node->name, node) ;
}
reply = redisCommand(ctx, "CLUSTER SLOTS");
if (reply == NULL || reply->type == REDIS_REPLY_ERROR) {
success = 0;
if (reply)
fprintf(stderr,"%s\nCLUSTER SLOTS ERROR: %s\n",errmsg,reply->str);
goto cleanup;
}
assert(reply->type == REDIS_REPLY_ARRAY);
for (i = 0; i < reply->elements; i++) {
redisReply *r = reply->element[i];
assert(r->type == REDIS_REPLY_ARRAY);
assert(r->elements >= 3);
int from, to, slot;
from = r->element[0]->integer;
to = r->element[1]->integer;
redisReply *nr = r->element[2];
assert(nr->type == REDIS_REPLY_ARRAY && nr->elements >= 3);
assert(nr->element[2]->str != NULL);
sds name = sdsnew(nr->element[2]->str);
dictEntry *entry = dictFind(masters, name);
if (entry == NULL) {
success = 0;
fprintf(stderr, "%s: could not find node with ID %s in current "
"configuration.\n", errmsg, name);
if (name) sdsfree(name);
goto cleanup;
}
sdsfree(name);
clusterNode *node = dictGetVal(entry);
if (node->updated_slots == NULL)
node->updated_slots = zcalloc(CLUSTER_SLOTS * sizeof(int));
for (slot = from; slot <= to; slot++)
node->updated_slots[node->updated_slots_count++] = slot;
}
updateClusterSlotsConfiguration();
cleanup:
freeReplyObject(reply);
redisFree(ctx);
dictRelease(masters);
atomicSet(config.is_fetching_slots, 0);
return success;
}
/* Atomically update the new slots configuration. */
static void updateClusterSlotsConfiguration(void) {
pthread_mutex_lock(&config.is_updating_slots_mutex);
atomicSet(config.is_updating_slots, 1);
int i;
for (i = 0; i < config.cluster_node_count; i++) {
clusterNode *node = config.cluster_nodes[i];
if (node->updated_slots != NULL) {
int *oldslots = node->slots;
node->slots = node->updated_slots;
node->slots_count = node->updated_slots_count;
node->updated_slots = NULL;
node->updated_slots_count = 0;
zfree(oldslots);
}
}
atomicSet(config.is_updating_slots, 0);
atomicIncr(config.slots_last_update, 1);
pthread_mutex_unlock(&config.is_updating_slots_mutex);
}
/* Generate random data for redis benchmark. See #7196. */
static void genBenchmarkRandomData(char *data, int count) {
static uint32_t state = 1234;
int i = 0;
while (count--) {
state = (state*1103515245+12345);
data[i++] = '0'+((state>>16)&63);
}
}
/* Returns number of consumed options. */
int parseOptions(int argc, char **argv) {
int i;
int lastarg;
int exit_status = 1;
char *tls_usage;
for (i = 1; i < argc; i++) {
lastarg = (i == (argc-1));
if (!strcmp(argv[i],"-c")) {
if (lastarg) goto invalid;
config.numclients = atoi(argv[++i]);
} else if (!strcmp(argv[i],"-v") || !strcmp(argv[i], "--version")) {
sds version = cliVersion();
printf("redis-benchmark %s\n", version);
sdsfree(version);
exit(0);
} else if (!strcmp(argv[i],"-n")) {
if (lastarg) goto invalid;
config.requests = atoi(argv[++i]);
} else if (!strcmp(argv[i],"-k")) {
if (lastarg) goto invalid;
config.keepalive = atoi(argv[++i]);
} else if (!strcmp(argv[i],"-h")) {
if (lastarg) goto invalid;
sdsfree(config.conn_info.hostip);
config.conn_info.hostip = sdsnew(argv[++i]);
} else if (!strcmp(argv[i],"-p")) {
if (lastarg) goto invalid;
config.conn_info.hostport = atoi(argv[++i]);
if (config.conn_info.hostport < 0 || config.conn_info.hostport > 65535) {
fprintf(stderr, "Invalid server port.\n");
exit(1);
}
} else if (!strcmp(argv[i],"-s")) {
if (lastarg) goto invalid;
config.hostsocket = strdup(argv[++i]);
} else if (!strcmp(argv[i],"-x")) {
config.stdinarg = 1;
} else if (!strcmp(argv[i],"-a") ) {
if (lastarg) goto invalid;
config.conn_info.auth = sdsnew(argv[++i]);
} else if (!strcmp(argv[i],"--user")) {
if (lastarg) goto invalid;
config.conn_info.user = sdsnew(argv[++i]);
} else if (!strcmp(argv[i],"-u") && !lastarg) {
parseRedisUri(argv[++i],"redis-benchmark",&config.conn_info,&config.tls);
if (config.conn_info.hostport < 0 || config.conn_info.hostport > 65535) {
fprintf(stderr, "Invalid server port.\n");
exit(1);
}
config.input_dbnumstr = sdsfromlonglong(config.conn_info.input_dbnum);
} else if (!strcmp(argv[i],"-3")) {
config.resp3 = 1;
} else if (!strcmp(argv[i],"-d")) {
if (lastarg) goto invalid;
config.datasize = atoi(argv[++i]);
if (config.datasize < 1) config.datasize=1;
if (config.datasize > 1024*1024*1024) config.datasize = 1024*1024*1024;
} else if (!strcmp(argv[i],"-P")) {
if (lastarg) goto invalid;
config.pipeline = atoi(argv[++i]);
if (config.pipeline <= 0) config.pipeline=1;
} else if (!strcmp(argv[i],"-r")) {
if (lastarg) goto invalid;
const char *next = argv[++i], *p = next;
if (*p == '-') {
p++;
if (*p < '0' || *p > '9') goto invalid;
}
config.randomkeys = 1;
config.randomkeys_keyspacelen = atoi(next);
if (config.randomkeys_keyspacelen < 0)
config.randomkeys_keyspacelen = 0;
} else if (!strcmp(argv[i],"-q")) {
config.quiet = 1;
} else if (!strcmp(argv[i],"--csv")) {
config.csv = 1;
} else if (!strcmp(argv[i],"-l")) {
config.loop = 1;
} else if (!strcmp(argv[i],"-I")) {
config.idlemode = 1;
} else if (!strcmp(argv[i],"-e")) {
fprintf(stderr,
"WARNING: -e option has no effect. "
"We now immediately exit on error to avoid false results.\n");
} else if (!strcmp(argv[i],"--seed")) {
if (lastarg) goto invalid;
int rand_seed = atoi(argv[++i]);
srandom(rand_seed);
init_genrand64(rand_seed);
} else if (!strcmp(argv[i],"-t")) {
if (lastarg) goto invalid;
/* We get the list of tests to run as a string in the form
* get,set,lrange,...,test_N. Then we add a comma before and
* after the string in order to make sure that searching
* for ",testname," will always get a match if the test is
* enabled. */
config.tests = sdsnew(",");
config.tests = sdscat(config.tests,(char*)argv[++i]);
config.tests = sdscat(config.tests,",");
sdstolower(config.tests);
} else if (!strcmp(argv[i],"--dbnum")) {
if (lastarg) goto invalid;
config.conn_info.input_dbnum = atoi(argv[++i]);
config.input_dbnumstr = sdsfromlonglong(config.conn_info.input_dbnum);
} else if (!strcmp(argv[i],"--precision")) {
if (lastarg) goto invalid;
config.precision = atoi(argv[++i]);
if (config.precision < 0) config.precision = DEFAULT_LATENCY_PRECISION;
if (config.precision > MAX_LATENCY_PRECISION) config.precision = MAX_LATENCY_PRECISION;
} else if (!strcmp(argv[i],"--threads")) {
if (lastarg) goto invalid;
config.num_threads = atoi(argv[++i]);
if (config.num_threads > MAX_THREADS) {
fprintf(stderr,
"WARNING: Too many threads, limiting threads to %d.\n",
MAX_THREADS);
config.num_threads = MAX_THREADS;
} else if (config.num_threads < 0) config.num_threads = 0;
} else if (!strcmp(argv[i],"--cluster")) {
config.cluster_mode = 1;
} else if (!strcmp(argv[i],"--enable-tracking")) {
config.enable_tracking = 1;
} else if (!strcmp(argv[i],"--help")) {
exit_status = 0;
goto usage;
#ifdef USE_OPENSSL
} else if (!strcmp(argv[i],"--tls")) {
config.tls = 1;
} else if (!strcmp(argv[i],"--sni")) {
if (lastarg) goto invalid;
config.sslconfig.sni = strdup(argv[++i]);
} else if (!strcmp(argv[i],"--cacertdir")) {
if (lastarg) goto invalid;
config.sslconfig.cacertdir = strdup(argv[++i]);
} else if (!strcmp(argv[i],"--cacert")) {
if (lastarg) goto invalid;
config.sslconfig.cacert = strdup(argv[++i]);
} else if (!strcmp(argv[i],"--insecure")) {
config.sslconfig.skip_cert_verify = 1;
} else if (!strcmp(argv[i],"--cert")) {
if (lastarg) goto invalid;
config.sslconfig.cert = strdup(argv[++i]);
} else if (!strcmp(argv[i],"--key")) {
if (lastarg) goto invalid;
config.sslconfig.key = strdup(argv[++i]);
} else if (!strcmp(argv[i],"--tls-ciphers")) {
if (lastarg) goto invalid;
config.sslconfig.ciphers = strdup(argv[++i]);
#ifdef TLS1_3_VERSION
} else if (!strcmp(argv[i],"--tls-ciphersuites")) {
if (lastarg) goto invalid;
config.sslconfig.ciphersuites = strdup(argv[++i]);
#endif
#endif
} else {
/* Assume the user meant to provide an option when the arg starts
* with a dash. We're done otherwise and should use the remainder
* as the command and arguments for running the benchmark. */
if (argv[i][0] == '-') goto invalid;
return i;
}
}
return i;
invalid:
printf("Invalid option \"%s\" or option argument missing\n\n",argv[i]);
usage:
tls_usage =
#ifdef USE_OPENSSL
" --tls Establish a secure TLS connection.\n"
" --sni <host> Server name indication for TLS.\n"
" --cacert <file> CA Certificate file to verify with.\n"
" --cacertdir <dir> Directory where trusted CA certificates are stored.\n"
" If neither cacert nor cacertdir are specified, the default\n"
" system-wide trusted root certs configuration will apply.\n"
" --insecure Allow insecure TLS connection by skipping cert validation.\n"
" --cert <file> Client certificate to authenticate with.\n"
" --key <file> Private key file to authenticate with.\n"
" --tls-ciphers <list> Sets the list of preferred ciphers (TLSv1.2 and below)\n"
" in order of preference from highest to lowest separated by colon (\":\").\n"
" See the ciphers(1ssl) manpage for more information about the syntax of this string.\n"
#ifdef TLS1_3_VERSION
" --tls-ciphersuites <list> Sets the list of preferred ciphersuites (TLSv1.3)\n"
" in order of preference from highest to lowest separated by colon (\":\").\n"
" See the ciphers(1ssl) manpage for more information about the syntax of this string,\n"
" and specifically for TLSv1.3 ciphersuites.\n"
#endif
#endif
"";
printf(
"%s%s%s", /* Split to avoid strings longer than 4095 (-Woverlength-strings). */
"Usage: redis-benchmark [OPTIONS] [COMMAND ARGS...]\n\n"
"Options:\n"
" -h <hostname> Server hostname (default 127.0.0.1)\n"
" -p <port> Server port (default 6379)\n"
" -s <socket> Server socket (overrides host and port)\n"
" -a <password> Password for Redis Auth\n"
" --user <username> Used to send ACL style 'AUTH username pass'. Needs -a.\n"
" -u <uri> Server URI on format redis://user:password@host:port/dbnum\n"
" User, password and dbnum are optional. For authentication\n"
" without a username, use username 'default'. For TLS, use\n"
" the scheme 'rediss'.\n"
" -c <clients> Number of parallel connections (default 50).\n"
" Note: If --cluster is used then number of clients has to be\n"
" the same or higher than the number of nodes.\n"
" -n <requests> Total number of requests (default 100000)\n"
" -d <size> Data size of SET/GET value in bytes (default 3)\n"
" --dbnum <db> SELECT the specified db number (default 0)\n"
" -3 Start session in RESP3 protocol mode.\n"
" --threads <num> Enable multi-thread mode.\n"
" --cluster Enable cluster mode.\n"
" If the command is supplied on the command line in cluster\n"
" mode, the key must contain \"{tag}\". Otherwise, the\n"
" command will not be sent to the right cluster node.\n"
" --enable-tracking Send CLIENT TRACKING on before starting benchmark.\n"
" -k <boolean> 1=keep alive 0=reconnect (default 1)\n"
" -r <keyspacelen> Use random keys for SET/GET/INCR, random values for SADD,\n"
" random members and scores for ZADD.\n"
" Using this option the benchmark will expand the string\n"
" __rand_int__ inside an argument with a 12 digits number in\n"
" the specified range from 0 to keyspacelen-1. The\n"
" substitution changes every time a command is executed.\n"
" Default tests use this to hit random keys in the specified\n"
" range.\n"
" Note: If -r is omitted, all commands in a benchmark will\n"
" use the same key.\n"
" -P <numreq> Pipeline <numreq> requests. Default 1 (no pipeline).\n"
" -q Quiet. Just show query/sec values\n"
" --precision Number of decimal places to display in latency output (default 0)\n"
" --csv Output in CSV format\n"
" -l Loop. Run the tests forever\n"
" -t <tests> Only run the comma separated list of tests. The test\n"
" names are the same as the ones produced as output.\n"
" The -t option is ignored if a specific command is supplied\n"
" on the command line.\n"
" -I Idle mode. Just open N idle connections and wait.\n"
" -x Read last argument from STDIN.\n"
" --seed <num> Set the seed for random number generator. Default seed is based on time.\n",
tls_usage,
" --help Output this help and exit.\n"
" --version Output version and exit.\n\n"
"Examples:\n\n"
" Run the benchmark with the default configuration against 127.0.0.1:6379:\n"
" $ redis-benchmark\n\n"
" Use 20 parallel clients, for a total of 100k requests, against 192.168.1.1:\n"
" $ redis-benchmark -h 192.168.1.1 -p 6379 -n 100000 -c 20\n\n"
" Fill 127.0.0.1:6379 with about 1 million keys only using the SET test:\n"
" $ redis-benchmark -t set -n 1000000 -r 100000000\n\n"
" Benchmark 127.0.0.1:6379 for a few commands producing CSV output:\n"
" $ redis-benchmark -t ping,set,get -n 100000 --csv\n\n"
" Benchmark a specific command line:\n"
" $ redis-benchmark -r 10000 -n 10000 eval 'return redis.call(\"ping\")' 0\n\n"
" Fill a list with 10000 random elements:\n"
" $ redis-benchmark -r 10000 -n 10000 lpush mylist __rand_int__\n\n"
" On user specified command lines __rand_int__ is replaced with a random integer\n"
" with a range of values selected by the -r option.\n"
);
exit(exit_status);
}
int showThroughput(struct aeEventLoop *eventLoop, long long id, void *clientData) {
UNUSED(eventLoop);
UNUSED(id);
benchmarkThread *thread = (benchmarkThread *)clientData;
int liveclients = 0;
int requests_finished = 0;
int previous_requests_finished = 0;
long long current_tick = mstime();
atomicGet(config.liveclients, liveclients);
atomicGet(config.requests_finished, requests_finished);
atomicGet(config.previous_requests_finished, previous_requests_finished);
if (liveclients == 0 && requests_finished != config.requests) {
fprintf(stderr,"All clients disconnected... aborting.\n");
exit(1);
}
if (config.num_threads && requests_finished >= config.requests) {
aeStop(eventLoop);
return AE_NOMORE;
}
if (config.csv) return SHOW_THROUGHPUT_INTERVAL;
/* only first thread output throughput */
if (thread != NULL && thread->index != 0) {
return SHOW_THROUGHPUT_INTERVAL;
}
if (config.idlemode == 1) {
printf("clients: %d\r", config.liveclients);
fflush(stdout);
return SHOW_THROUGHPUT_INTERVAL;
}
const float dt = (float)(current_tick-config.start)/1000.0;
const float rps = (float)requests_finished/dt;
const float instantaneous_dt = (float)(current_tick-config.previous_tick)/1000.0;
const float instantaneous_rps = (float)(requests_finished-previous_requests_finished)/instantaneous_dt;
config.previous_tick = current_tick;
atomicSet(config.previous_requests_finished,requests_finished);
printf("%*s\r", config.last_printed_bytes, " "); /* ensure there is a clean line */
int printed_bytes = printf("%s: rps=%.1f (overall: %.1f) avg_msec=%.3f (overall: %.3f)\r", config.title, instantaneous_rps, rps, hdr_mean(config.current_sec_latency_histogram)/1000.0f, hdr_mean(config.latency_histogram)/1000.0f);
config.last_printed_bytes = printed_bytes;
hdr_reset(config.current_sec_latency_histogram);
fflush(stdout);
return SHOW_THROUGHPUT_INTERVAL;
}
/* Return true if the named test was selected using the -t command line
* switch, or if all the tests are selected (no -t passed by user). */
int test_is_selected(const char *name) {
char buf[256];
int l = strlen(name);
if (config.tests == NULL) return 1;
buf[0] = ',';
memcpy(buf+1,name,l);
buf[l+1] = ',';
buf[l+2] = '\0';
return strstr(config.tests,buf) != NULL;
}
int main(int argc, char **argv) {
int i;
char *data, *cmd, *tag;
int len;
client c;
srandom(time(NULL) ^ getpid());
init_genrand64(ustime() ^ getpid());
signal(SIGHUP, SIG_IGN);
signal(SIGPIPE, SIG_IGN);
memset(&config.sslconfig, 0, sizeof(config.sslconfig));
config.numclients = 50;
config.requests = 100000;
config.liveclients = 0;
config.el = aeCreateEventLoop(1024*10);
aeCreateTimeEvent(config.el,1,showThroughput,NULL,NULL);
config.keepalive = 1;
config.datasize = 3;
config.pipeline = 1;
config.randomkeys = 0;
config.randomkeys_keyspacelen = 0;
config.quiet = 0;
config.csv = 0;
config.loop = 0;
config.idlemode = 0;
config.clients = listCreate();
config.conn_info.hostip = sdsnew("127.0.0.1");
config.conn_info.hostport = 6379;
config.hostsocket = NULL;
config.tests = NULL;
config.conn_info.input_dbnum = 0;
config.stdinarg = 0;
config.conn_info.auth = NULL;
config.precision = DEFAULT_LATENCY_PRECISION;
config.num_threads = 0;
config.threads = NULL;
config.cluster_mode = 0;
config.cluster_node_count = 0;
config.cluster_nodes = NULL;
config.redis_config = NULL;
config.is_fetching_slots = 0;
config.is_updating_slots = 0;
config.slots_last_update = 0;
config.enable_tracking = 0;
config.resp3 = 0;
i = parseOptions(argc,argv);
argc -= i;
argv += i;
tag = "";
#ifdef USE_OPENSSL
if (config.tls) {
cliSecureInit();
}
#endif
if (config.cluster_mode) {
// We only include the slot placeholder {tag} if cluster mode is enabled
tag = ":{tag}";
/* Fetch cluster configuration. */
if (!fetchClusterConfiguration() || !config.cluster_nodes) {
if (!config.hostsocket) {
fprintf(stderr, "Failed to fetch cluster configuration from "
"%s:%d\n", config.conn_info.hostip, config.conn_info.hostport);
} else {
fprintf(stderr, "Failed to fetch cluster configuration from "
"%s\n", config.hostsocket);
}
exit(1);
}
if (config.cluster_node_count <= 1) {
fprintf(stderr, "Invalid cluster: %d node(s).\n",
config.cluster_node_count);
exit(1);
}
printf("Cluster has %d master nodes:\n\n", config.cluster_node_count);
int i = 0;
for (; i < config.cluster_node_count; i++) {
clusterNode *node = config.cluster_nodes[i];
if (!node) {
fprintf(stderr, "Invalid cluster node #%d\n", i);
exit(1);
}
printf("Master %d: ", i);
if (node->name) printf("%s ", node->name);
printf("%s:%d\n", node->ip, node->port);
node->redis_config = getRedisConfig(node->ip, node->port, NULL);
if (node->redis_config == NULL) {
fprintf(stderr, "WARNING: Could not fetch node CONFIG %s:%d\n",
node->ip, node->port);
}
}
printf("\n");
/* Automatically set thread number to node count if not specified
* by the user. */
if (config.num_threads == 0)
config.num_threads = config.cluster_node_count;
} else {
config.redis_config =
getRedisConfig(config.conn_info.hostip, config.conn_info.hostport, config.hostsocket);
if (config.redis_config == NULL) {
fprintf(stderr, "WARNING: Could not fetch server CONFIG\n");
}
}
if (config.num_threads > 0) {
pthread_mutex_init(&(config.liveclients_mutex), NULL);
pthread_mutex_init(&(config.is_updating_slots_mutex), NULL);
}
if (config.keepalive == 0) {
fprintf(stderr,
"WARNING: Keepalive disabled. You probably need "
"'echo 1 > /proc/sys/net/ipv4/tcp_tw_reuse' for Linux and "
"'sudo sysctl -w net.inet.tcp.msl=1000' for Mac OS X in order "
"to use a lot of clients/requests\n");
}
if (argc > 0 && config.tests != NULL) {
fprintf(stderr, "WARNING: Option -t is ignored.\n");
}
if (config.idlemode) {
printf("Creating %d idle connections and waiting forever (Ctrl+C when done)\n", config.numclients);
int thread_id = -1, use_threads = (config.num_threads > 0);
if (use_threads) {
thread_id = 0;
initBenchmarkThreads();
}
c = createClient("",0,NULL,thread_id); /* will never receive a reply */
createMissingClients(c);
if (use_threads) startBenchmarkThreads();
else aeMain(config.el);
/* and will wait for every */
}
if(config.csv){
printf("\"test\",\"rps\",\"avg_latency_ms\",\"min_latency_ms\",\"p50_latency_ms\",\"p95_latency_ms\",\"p99_latency_ms\",\"max_latency_ms\"\n");
}
/* Run benchmark with command in the remainder of the arguments. */
if (argc) {
sds title = sdsnew(argv[0]);
for (i = 1; i < argc; i++) {
title = sdscatlen(title, " ", 1);
title = sdscatlen(title, (char*)argv[i], strlen(argv[i]));
}
sds *sds_args = getSdsArrayFromArgv(argc, argv, 0);
if (!sds_args) {
fprintf(stderr, "Invalid quoted string\n");
return 1;
}
if (config.stdinarg) {
sds_args = sds_realloc(sds_args,(argc + 1) * sizeof(sds));
sds_args[argc] = readArgFromStdin();
argc++;
}
/* Setup argument length */
size_t *argvlen = zmalloc(argc*sizeof(size_t));
for (i = 0; i < argc; i++)
argvlen[i] = sdslen(sds_args[i]);
do {
len = redisFormatCommandArgv(&cmd,argc,(const char**)sds_args,argvlen);
// adjust the datasize to the parsed command
config.datasize = len;
benchmark(title,cmd,len);
free(cmd);
} while(config.loop);
sdsfreesplitres(sds_args, argc);
sdsfree(title);
if (config.redis_config != NULL) freeRedisConfig(config.redis_config);
zfree(argvlen);
return 0;
}
/* Run default benchmark suite. */
data = zmalloc(config.datasize+1);
do {
genBenchmarkRandomData(data, config.datasize);
data[config.datasize] = '\0';
if (test_is_selected("ping_inline") || test_is_selected("ping"))
benchmark("PING_INLINE","PING\r\n",6);
if (test_is_selected("ping_mbulk") || test_is_selected("ping")) {
len = redisFormatCommand(&cmd,"PING");
benchmark("PING_MBULK",cmd,len);
free(cmd);
}
if (test_is_selected("set")) {
len = redisFormatCommand(&cmd,"SET key%s:__rand_int__ %s",tag,data);
benchmark("SET",cmd,len);
free(cmd);
}
if (test_is_selected("get")) {
len = redisFormatCommand(&cmd,"GET key%s:__rand_int__",tag);
benchmark("GET",cmd,len);
free(cmd);
}
if (test_is_selected("incr")) {
len = redisFormatCommand(&cmd,"INCR counter%s:__rand_int__",tag);
benchmark("INCR",cmd,len);
free(cmd);
}
if (test_is_selected("lpush")) {
len = redisFormatCommand(&cmd,"LPUSH mylist%s %s",tag,data);
benchmark("LPUSH",cmd,len);
free(cmd);
}
if (test_is_selected("rpush")) {
len = redisFormatCommand(&cmd,"RPUSH mylist%s %s",tag,data);
benchmark("RPUSH",cmd,len);
free(cmd);
}
if (test_is_selected("lpop")) {
len = redisFormatCommand(&cmd,"LPOP mylist%s",tag);
benchmark("LPOP",cmd,len);
free(cmd);
}
if (test_is_selected("rpop")) {
len = redisFormatCommand(&cmd,"RPOP mylist%s",tag);
benchmark("RPOP",cmd,len);
free(cmd);
}
if (test_is_selected("sadd")) {
len = redisFormatCommand(&cmd,
"SADD myset%s element:__rand_int__",tag);
benchmark("SADD",cmd,len);
free(cmd);
}
if (test_is_selected("hset")) {
len = redisFormatCommand(&cmd,
"HSET myhash%s element:__rand_int__ %s",tag,data);
benchmark("HSET",cmd,len);
free(cmd);
}
if (test_is_selected("spop")) {
len = redisFormatCommand(&cmd,"SPOP myset%s",tag);
benchmark("SPOP",cmd,len);
free(cmd);
}
if (test_is_selected("zadd")) {
char *score = "0";
if (config.randomkeys) score = "__rand_int__";
len = redisFormatCommand(&cmd,
"ZADD myzset%s %s element:__rand_int__",tag,score);
benchmark("ZADD",cmd,len);
free(cmd);
}
if (test_is_selected("zpopmin")) {
len = redisFormatCommand(&cmd,"ZPOPMIN myzset%s",tag);
benchmark("ZPOPMIN",cmd,len);
free(cmd);
}
if (test_is_selected("lrange") ||
test_is_selected("lrange_100") ||
test_is_selected("lrange_300") ||
test_is_selected("lrange_500") ||
test_is_selected("lrange_600"))
{
len = redisFormatCommand(&cmd,"LPUSH mylist%s %s",tag,data);
benchmark("LPUSH (needed to benchmark LRANGE)",cmd,len);
free(cmd);
}
if (test_is_selected("lrange") || test_is_selected("lrange_100")) {
len = redisFormatCommand(&cmd,"LRANGE mylist%s 0 99",tag);
benchmark("LRANGE_100 (first 100 elements)",cmd,len);
free(cmd);
}
if (test_is_selected("lrange") || test_is_selected("lrange_300")) {
len = redisFormatCommand(&cmd,"LRANGE mylist%s 0 299",tag);
benchmark("LRANGE_300 (first 300 elements)",cmd,len);
free(cmd);
}
if (test_is_selected("lrange") || test_is_selected("lrange_500")) {
len = redisFormatCommand(&cmd,"LRANGE mylist%s 0 499",tag);
benchmark("LRANGE_500 (first 500 elements)",cmd,len);
free(cmd);
}
if (test_is_selected("lrange") || test_is_selected("lrange_600")) {
len = redisFormatCommand(&cmd,"LRANGE mylist%s 0 599",tag);
benchmark("LRANGE_600 (first 600 elements)",cmd,len);
free(cmd);
}
if (test_is_selected("mset")) {
const char *cmd_argv[21];
cmd_argv[0] = "MSET";
sds key_placeholder = sdscatprintf(sdsnew(""),"key%s:__rand_int__",tag);
for (i = 1; i < 21; i += 2) {
cmd_argv[i] = key_placeholder;
cmd_argv[i+1] = data;
}
len = redisFormatCommandArgv(&cmd,21,cmd_argv,NULL);
benchmark("MSET (10 keys)",cmd,len);
free(cmd);
sdsfree(key_placeholder);
}
if (test_is_selected("xadd")) {
len = redisFormatCommand(&cmd,"XADD mystream%s * myfield %s", tag, data);
benchmark("XADD",cmd,len);
free(cmd);
}
if (!config.csv) printf("\n");
} while(config.loop);
zfree(data);
freeCliConnInfo(config.conn_info);
if (config.redis_config != NULL) freeRedisConfig(config.redis_config);
return 0;
}
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