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redis/benchmark.c

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/* Redis benchmark utility.
*
* Copyright (c) 2006-2009, Salvatore Sanfilippo <antirez at gmail dot com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Redis nor the names of its contributors may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <sys/time.h>
#include <signal.h>
#include <assert.h>
#include "ae.h"
#include "anet.h"
#include "sds.h"
#include "adlist.h"
#include "zmalloc.h"
#define REPLY_INT 0
#define REPLY_RETCODE 1
#define REPLY_BULK 2
#define CLIENT_CONNECTING 0
#define CLIENT_SENDQUERY 1
#define CLIENT_READREPLY 2
#define MAX_LATENCY 5000
#define REDIS_NOTUSED(V) ((void) V)
static struct config {
int numclients;
int requests;
int liveclients;
int donerequests;
int keysize;
int datasize;
int randomkeys;
int randomkeys_keyspacelen;
aeEventLoop *el;
char *hostip;
int hostport;
int keepalive;
long long start;
long long totlatency;
int *latency;
list *clients;
int quiet;
int loop;
} config;
typedef struct _client {
int state;
int fd;
sds obuf;
sds ibuf;
int readlen; /* readlen == -1 means read a single line */
unsigned int written; /* bytes of 'obuf' already written */
int replytype;
long long start; /* start time in milliseconds */
} *client;
/* Prototypes */
static void writeHandler(aeEventLoop *el, int fd, void *privdata, int mask);
static void createMissingClients(client c);
/* Implementation */
static long long mstime(void) {
struct timeval tv;
long long mst;
gettimeofday(&tv, NULL);
mst = ((long)tv.tv_sec)*1000;
mst += tv.tv_usec/1000;
return mst;
}
static void freeClient(client c) {
listNode *ln;
aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
aeDeleteFileEvent(config.el,c->fd,AE_READABLE);
sdsfree(c->ibuf);
sdsfree(c->obuf);
close(c->fd);
zfree(c);
config.liveclients--;
ln = listSearchKey(config.clients,c);
assert(ln != NULL);
listDelNode(config.clients,ln);
}
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) {
aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
aeDeleteFileEvent(config.el,c->fd,AE_READABLE);
aeCreateFileEvent(config.el,c->fd, AE_WRITABLE,writeHandler,c,NULL);
sdsfree(c->ibuf);
c->ibuf = sdsempty();
c->readlen = (c->replytype == REPLY_BULK) ? -1 : 0;
c->written = 0;
c->state = CLIENT_SENDQUERY;
c->start = mstime();
}
static void randomizeClientKey(client c) {
char *p;
char buf[32];
long r;
p = strstr(c->obuf, "_rand");
if (!p) return;
p += 5;
r = random() % config.randomkeys_keyspacelen;
sprintf(buf,"%ld",r);
memcpy(p,buf,strlen(buf));
}
static void clientDone(client c) {
long long latency;
config.donerequests ++;
latency = mstime() - c->start;
if (latency > MAX_LATENCY) latency = MAX_LATENCY;
config.latency[latency]++;
if (config.donerequests == config.requests) {
freeClient(c);
aeStop(config.el);
return;
}
if (config.keepalive) {
resetClient(c);
if (config.randomkeys) randomizeClientKey(c);
} else {
config.liveclients--;
createMissingClients(c);
config.liveclients++;
freeClient(c);
}
}
static void readHandler(aeEventLoop *el, int fd, void *privdata, int mask)
{
char buf[1024];
int nread;
client c = privdata;
REDIS_NOTUSED(el);
REDIS_NOTUSED(fd);
REDIS_NOTUSED(mask);
nread = read(c->fd, buf, 1024);
if (nread == -1) {
fprintf(stderr, "Reading from socket: %s\n", strerror(errno));
freeClient(c);
return;
}
if (nread == 0) {
fprintf(stderr, "EOF from client\n");
freeClient(c);
return;
}
c->ibuf = sdscatlen(c->ibuf,buf,nread);
if (c->replytype == REPLY_INT ||
c->replytype == REPLY_RETCODE ||
(c->replytype == REPLY_BULK && c->readlen == -1)) {
char *p;
if ((p = strchr(c->ibuf,'\n')) != NULL) {
if (c->replytype == REPLY_BULK) {
*p = '\0';
*(p-1) = '\0';
c->readlen = atoi(c->ibuf+1)+2;
if (c->readlen-2 == -1) {
clientDone(c);
return;
}
c->ibuf = sdsrange(c->ibuf,(p-c->ibuf)+1,-1);
} else {
c->ibuf = sdstrim(c->ibuf,"\r\n");
clientDone(c);
return;
}
}
}
/* bulk read */
if ((unsigned)c->readlen == sdslen(c->ibuf))
clientDone(c);
}
static void writeHandler(aeEventLoop *el, int fd, void *privdata, int mask)
{
client c = privdata;
REDIS_NOTUSED(el);
REDIS_NOTUSED(fd);
REDIS_NOTUSED(mask);
if (c->state == CLIENT_CONNECTING) {
c->state = CLIENT_SENDQUERY;
c->start = mstime();
}
if (sdslen(c->obuf) > c->written) {
void *ptr = c->obuf+c->written;
int len = sdslen(c->obuf) - c->written;
int nwritten = write(c->fd, ptr, len);
if (nwritten == -1) {
fprintf(stderr, "Writing to socket: %s\n", strerror(errno));
freeClient(c);
return;
}
c->written += nwritten;
if (sdslen(c->obuf) == c->written) {
aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
aeCreateFileEvent(config.el,c->fd,AE_READABLE,readHandler,c,NULL);
c->state = CLIENT_READREPLY;
}
}
}
static client createClient(void) {
client c = zmalloc(sizeof(struct _client));
char err[ANET_ERR_LEN];
c->fd = anetTcpNonBlockConnect(err,config.hostip,config.hostport);
if (c->fd == ANET_ERR) {
zfree(c);
fprintf(stderr,"Connect: %s\n",err);
return NULL;
}
anetTcpNoDelay(NULL,c->fd);
c->obuf = sdsempty();
c->ibuf = sdsempty();
c->readlen = 0;
c->written = 0;
c->state = CLIENT_CONNECTING;
aeCreateFileEvent(config.el, c->fd, AE_WRITABLE, writeHandler, c, NULL);
config.liveclients++;
listAddNodeTail(config.clients,c);
return c;
}
static void createMissingClients(client c) {
while(config.liveclients < config.numclients) {
client new = createClient();
if (!new) continue;
sdsfree(new->obuf);
new->obuf = sdsdup(c->obuf);
if (config.randomkeys) randomizeClientKey(c);
new->replytype = c->replytype;
if (c->replytype == REPLY_BULK)
new->readlen = -1;
}
}
static void showLatencyReport(char *title) {
int j, seen = 0;
float perc, reqpersec;
reqpersec = (float)config.donerequests/((float)config.totlatency/1000);
if (!config.quiet) {
printf("====== %s ======\n", title);
printf(" %d requests completed in %.2f seconds\n", config.donerequests,
(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);
printf("\n");
for (j = 0; j <= MAX_LATENCY; j++) {
if (config.latency[j]) {
seen += config.latency[j];
perc = ((float)seen*100)/config.donerequests;
printf("%.2f%% <= %d milliseconds\n", perc, j);
}
}
printf("%.2f requests per second\n\n", reqpersec);
} else {
printf("%s: %.2f requests per second\n", title, reqpersec);
}
}
static void prepareForBenchmark(void)
{
memset(config.latency,0,sizeof(int)*(MAX_LATENCY+1));
config.start = mstime();
config.donerequests = 0;
}
static void endBenchmark(char *title) {
config.totlatency = mstime()-config.start;
showLatencyReport(title);
freeAllClients();
}
void parseOptions(int argc, char **argv) {
int i;
for (i = 1; i < argc; i++) {
int lastarg = i==argc-1;
if (!strcmp(argv[i],"-c") && !lastarg) {
config.numclients = atoi(argv[i+1]);
i++;
} else if (!strcmp(argv[i],"-n") && !lastarg) {
config.requests = atoi(argv[i+1]);
i++;
} else if (!strcmp(argv[i],"-k") && !lastarg) {
config.keepalive = atoi(argv[i+1]);
i++;
} else if (!strcmp(argv[i],"-h") && !lastarg) {
char *ip = zmalloc(32);
if (anetResolve(NULL,argv[i+1],ip) == ANET_ERR) {
printf("Can't resolve %s\n", argv[i]);
exit(1);
}
config.hostip = ip;
i++;
} else if (!strcmp(argv[i],"-p") && !lastarg) {
config.hostport = atoi(argv[i+1]);
i++;
} else if (!strcmp(argv[i],"-d") && !lastarg) {
config.datasize = atoi(argv[i+1]);
i++;
if (config.datasize < 1) config.datasize=1;
if (config.datasize > 1024*1024) config.datasize = 1024*1024;
} else if (!strcmp(argv[i],"-r") && !lastarg) {
config.randomkeys = 1;
config.randomkeys_keyspacelen = atoi(argv[i+1]);
if (config.randomkeys_keyspacelen < 0)
config.randomkeys_keyspacelen = 0;
i++;
} else if (!strcmp(argv[i],"-q")) {
config.quiet = 1;
} else if (!strcmp(argv[i],"-l")) {
config.loop = 1;
} else {
printf("Wrong option '%s' or option argument missing\n\n",argv[i]);
printf("Usage: redis-benchmark [-h <host>] [-p <port>] [-c <clients>] [-n <requests]> [-k <boolean>]\n\n");
printf(" -h <hostname> Server hostname (default 127.0.0.1)\n");
printf(" -p <hostname> Server port (default 6379)\n");
printf(" -c <clients> Number of parallel connections (default 50)\n");
printf(" -n <requests> Total number of requests (default 10000)\n");
printf(" -d <size> Data size of SET/GET value in bytes (default 2)\n");
printf(" -k <boolean> 1=keep alive 0=reconnect (default 1)\n");
printf(" -r <keyspacelen> Use random keys for SET/GET/INCR\n");
printf(" Using this option the benchmark will get/set keys\n");
printf(" in the form mykey_rand000000012456 instead of constant\n");
printf(" keys, the <keyspacelen> argument determines the max\n");
printf(" number of values for the random number. For instance\n");
printf(" if set to 10 only rand000000000000 - rand000000000009\n");
printf(" range will be allowed.\n");
printf(" -q Quiet. Just show query/sec values\n");
printf(" -l Loop. Run the tests forever\n");
exit(1);
}
}
}
int main(int argc, char **argv) {
client c;
signal(SIGHUP, SIG_IGN);
signal(SIGPIPE, SIG_IGN);
config.numclients = 50;
config.requests = 10000;
config.liveclients = 0;
config.el = aeCreateEventLoop();
config.keepalive = 1;
config.donerequests = 0;
config.datasize = 3;
config.randomkeys = 0;
config.randomkeys_keyspacelen = 0;
config.quiet = 0;
config.loop = 0;
config.latency = NULL;
config.clients = listCreate();
config.latency = zmalloc(sizeof(int)*(MAX_LATENCY+1));
config.hostip = "127.0.0.1";
config.hostport = 6379;
parseOptions(argc,argv);
if (config.keepalive == 0) {
printf("WARNING: keepalive disabled, you probably need 'echo 1 > /proc/sys/net/ipv4/tcp_tw_reuse' in order to use a lot of clients/requests\n");
}
do {
prepareForBenchmark();
c = createClient();
if (!c) exit(1);
c->obuf = sdscat(c->obuf,"PING\r\n");
c->replytype = REPLY_RETCODE;
createMissingClients(c);
aeMain(config.el);
endBenchmark("PING");
prepareForBenchmark();
c = createClient();
if (!c) exit(1);
c->obuf = sdscatprintf(c->obuf,"SET foo_rand000000000000 %d\r\n",config.datasize);
{
char *data = zmalloc(config.datasize+2);
memset(data,'x',config.datasize);
data[config.datasize] = '\r';
data[config.datasize+1] = '\n';
c->obuf = sdscatlen(c->obuf,data,config.datasize+2);
}
c->replytype = REPLY_RETCODE;
createMissingClients(c);
aeMain(config.el);
endBenchmark("SET");
prepareForBenchmark();
c = createClient();
if (!c) exit(1);
c->obuf = sdscat(c->obuf,"GET foo_rand000000000000\r\n");
c->replytype = REPLY_BULK;
c->readlen = -1;
createMissingClients(c);
aeMain(config.el);
endBenchmark("GET");
prepareForBenchmark();
c = createClient();
if (!c) exit(1);
c->obuf = sdscat(c->obuf,"INCR counter_rand000000000000\r\n");
c->replytype = REPLY_INT;
createMissingClients(c);
aeMain(config.el);
endBenchmark("INCR");
prepareForBenchmark();
c = createClient();
if (!c) exit(1);
c->obuf = sdscat(c->obuf,"LPUSH mylist 3\r\nbar\r\n");
c->replytype = REPLY_INT;
createMissingClients(c);
aeMain(config.el);
endBenchmark("LPUSH");
prepareForBenchmark();
c = createClient();
if (!c) exit(1);
c->obuf = sdscat(c->obuf,"LPOP mylist\r\n");
c->replytype = REPLY_BULK;
c->readlen = -1;
createMissingClients(c);
aeMain(config.el);
endBenchmark("LPOP");
printf("\n");
} while(config.loop);
return 0;
}
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