benchmark.c

   1 /* Redis benchmark utility.
   2  *
   3  * Copyright (c) 2006-2009, Salvatore Sanfilippo <antirez at gmail dot com>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  *   * Redistributions of source code must retain the above copyright notice,
  10  *     this list of conditions and the following disclaimer.
  11  *   * Redistributions in binary form must reproduce the above copyright
  12  *     notice, this list of conditions and the following disclaimer in the
  13  *     documentation and/or other materials provided with the distribution.
  14  *   * Neither the name of Redis nor the names of its contributors may be used
  15  *     to endorse or promote products derived from this software without
  16  *     specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #include "fmacros.h"
  32
  33 #include <stdio.h>
  34 #include <string.h>
  35 #include <stdlib.h>
  36 #include <unistd.h>
  37 #include <errno.h>
  38 #include <sys/time.h>
  39 #include <signal.h>
  40 #include <assert.h>
  41
  42 #include "ae.h"
  43 #include "anet.h"
  44 #include "sds.h"
  45 #include "adlist.h"
  46 #include "zmalloc.h"
  47
  48 #define REPLY_INT 0
  49 #define REPLY_RETCODE 1
  50 #define REPLY_BULK 2
  51
  52 #define CLIENT_CONNECTING 0
  53 #define CLIENT_SENDQUERY 1
  54 #define CLIENT_READREPLY 2
  55
  56 #define MAX_LATENCY 5000
  57
  58 #define REDIS_NOTUSED(V) ((void) V)
  59
  60 static struct config {
  61     int numclients;
  62     int requests;
  63     int liveclients;
  64     int donerequests;
  65     int keysize;
  66     int datasize;
  67     int randomkeys;
  68     int randomkeys_keyspacelen;
  69     aeEventLoop *el;
  70     char *hostip;
  71     int hostport;
  72     int keepalive;
  73     long long start;
  74     long long totlatency;
  75     int *latency;
  76     list *clients;
  77     int quiet;
  78     int loop;
  79 } config;
  80
  81 typedef struct _client {
  82     int state;
  83     int fd;
  84     sds obuf;
  85     sds ibuf;
  86     int readlen;        /* readlen == -1 means read a single line */
  87     unsigned int written;        /* bytes of 'obuf' already written */
  88     int replytype;
  89     long long start;    /* start time in milliseconds */
  90 } *client;
  91
  92 /* Prototypes */
  93 static void writeHandler(aeEventLoop *el, int fd, void *privdata, int mask);
  94 static void createMissingClients(client c);
  95
  96 /* Implementation */
  97 static long long mstime(void) {
  98     struct timeval tv;
  99     long long mst;
 100
 101     gettimeofday(&tv, NULL);
 102     mst = ((long)tv.tv_sec)*1000;
 103     mst += tv.tv_usec/1000;
 104     return mst;
 105 }
 106
 107 static void freeClient(client c) {
 108     listNode *ln;
 109
 110     aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
 111     aeDeleteFileEvent(config.el,c->fd,AE_READABLE);
 112     sdsfree(c->ibuf);
 113     sdsfree(c->obuf);
 114     close(c->fd);
 115     zfree(c);
 116     config.liveclients--;
 117     ln = listSearchKey(config.clients,c);
 118     assert(ln != NULL);
 119     listDelNode(config.clients,ln);
 120 }
 121
 122 static void freeAllClients(void) {
 123     listNode *ln = config.clients->head, *next;
 124
 125     while(ln) {
 126         next = ln->next;
 127         freeClient(ln->value);
 128         ln = next;
 129     }
 130 }
 131
 132 static void resetClient(client c) {
 133     aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
 134     aeDeleteFileEvent(config.el,c->fd,AE_READABLE);
 135     aeCreateFileEvent(config.el,c->fd, AE_WRITABLE,writeHandler,c,NULL);
 136     sdsfree(c->ibuf);
 137     c->ibuf = sdsempty();
 138     c->readlen = (c->replytype == REPLY_BULK) ? -1 : 0;
 139     c->written = 0;
 140     c->state = CLIENT_SENDQUERY;
 141     c->start = mstime();
 142     createMissingClients(c);
 143 }
 144
 145 static void randomizeClientKey(client c) {
 146     char *p;
 147     char buf[32];
 148     long r;
 149
 150     p = strstr(c->obuf, "_rand");
 151     if (!p) return;
 152     p += 5;
 153     r = random() % config.randomkeys_keyspacelen;
 154     sprintf(buf,"%ld",r);
 155     memcpy(p,buf,strlen(buf));
 156 }
 157
 158 static void clientDone(client c) {
 159     long long latency;
 160     config.donerequests ++;
 161     latency = mstime() - c->start;
 162     if (latency > MAX_LATENCY) latency = MAX_LATENCY;
 163     config.latency[latency]++;
 164
 165     if (config.donerequests == config.requests) {
 166         freeClient(c);
 167         aeStop(config.el);
 168         return;
 169     }
 170     if (config.keepalive) {
 171         resetClient(c);
 172         if (config.randomkeys) randomizeClientKey(c);
 173     } else {
 174         config.liveclients--;
 175         createMissingClients(c);
 176         config.liveclients++;
 177         freeClient(c);
 178     }
 179 }
 180
 181 static void readHandler(aeEventLoop *el, int fd, void *privdata, int mask)
 182 {
 183     char buf[1024];
 184     int nread;
 185     client c = privdata;
 186     REDIS_NOTUSED(el);
 187     REDIS_NOTUSED(fd);
 188     REDIS_NOTUSED(mask);
 189
 190     nread = read(c->fd, buf, 1024);
 191     if (nread == -1) {
 192         fprintf(stderr, "Reading from socket: %s\n", strerror(errno));
 193         freeClient(c);
 194         return;
 195     }
 196     if (nread == 0) {
 197         fprintf(stderr, "EOF from client\n");
 198         freeClient(c);
 199         return;
 200     }
 201     c->ibuf = sdscatlen(c->ibuf,buf,nread);
 202
 203     if (c->replytype == REPLY_INT ||
 204         c->replytype == REPLY_RETCODE ||
 205         (c->replytype == REPLY_BULK && c->readlen == -1)) {
 206         char *p;
 207
 208         if ((p = strchr(c->ibuf,'\n')) != NULL) {
 209             if (c->replytype == REPLY_BULK) {
 210                 *p = '\0';
 211                 *(p-1) = '\0';
 212                 c->readlen = atoi(c->ibuf+1)+2;
 213                 if (c->readlen-2 == -1) {
 214                     clientDone(c);
 215                     return;
 216                 }
 217                 c->ibuf = sdsrange(c->ibuf,(p-c->ibuf)+1,-1);
 218             } else {
 219                 c->ibuf = sdstrim(c->ibuf,"\r\n");
 220                 clientDone(c);
 221                 return;
 222             }
 223         }
 224     }
 225     /* bulk read */
 226     if ((unsigned)c->readlen == sdslen(c->ibuf))
 227         clientDone(c);
 228 }
 229
 230 static void writeHandler(aeEventLoop *el, int fd, void *privdata, int mask)
 231 {
 232     client c = privdata;
 233     REDIS_NOTUSED(el);
 234     REDIS_NOTUSED(fd);
 235     REDIS_NOTUSED(mask);
 236
 237     if (c->state == CLIENT_CONNECTING) {
 238         c->state = CLIENT_SENDQUERY;
 239         c->start = mstime();
 240     }
 241     if (sdslen(c->obuf) > c->written) {
 242         void *ptr = c->obuf+c->written;
 243         int len = sdslen(c->obuf) - c->written;
 244         int nwritten = write(c->fd, ptr, len);
 245         if (nwritten == -1) {
 246             fprintf(stderr, "Writing to socket: %s\n", strerror(errno));
 247             freeClient(c);
 248             return;
 249         }
 250         c->written += nwritten;
 251         if (sdslen(c->obuf) == c->written) {
 252             aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
 253             aeCreateFileEvent(config.el,c->fd,AE_READABLE,readHandler,c,NULL);
 254             c->state = CLIENT_READREPLY;
 255         }
 256     }
 257 }
 258
 259 static client createClient(void) {
 260     client c = zmalloc(sizeof(struct _client));
 261     char err[ANET_ERR_LEN];
 262
 263     c->fd = anetTcpNonBlockConnect(err,config.hostip,config.hostport);
 264     if (c->fd == ANET_ERR) {
 265         zfree(c);
 266         fprintf(stderr,"Connect: %s\n",err);
 267         return NULL;
 268     }
 269     anetTcpNoDelay(NULL,c->fd);
 270     c->obuf = sdsempty();
 271     c->ibuf = sdsempty();
 272     c->readlen = 0;
 273     c->written = 0;
 274     c->state = CLIENT_CONNECTING;
 275     aeCreateFileEvent(config.el, c->fd, AE_WRITABLE, writeHandler, c, NULL);
 276     config.liveclients++;
 277     listAddNodeTail(config.clients,c);
 278     return c;
 279 }
 280
 281 static void createMissingClients(client c) {
 282     while(config.liveclients < config.numclients) {
 283         client new = createClient();
 284         if (!new) continue;
 285         sdsfree(new->obuf);
 286         new->obuf = sdsdup(c->obuf);
 287         if (config.randomkeys) randomizeClientKey(c);
 288         new->replytype = c->replytype;
 289         if (c->replytype == REPLY_BULK)
 290             new->readlen = -1;
 291     }
 292 }
 293
 294 static void showLatencyReport(char *title) {
 295     int j, seen = 0;
 296     float perc, reqpersec;
 297
 298     reqpersec = (float)config.donerequests/((float)config.totlatency/1000);
 299     if (!config.quiet) {
 300         printf("====== %s ======\n", title);
 301         printf("  %d requests completed in %.2f seconds\n", config.donerequests,
 302             (float)config.totlatency/1000);
 303         printf("  %d parallel clients\n", config.numclients);
 304         printf("  %d bytes payload\n", config.datasize);
 305         printf("  keep alive: %d\n", config.keepalive);
 306         printf("\n");
 307         for (j = 0; j <= MAX_LATENCY; j++) {
 308             if (config.latency[j]) {
 309                 seen += config.latency[j];
 310                 perc = ((float)seen*100)/config.donerequests;
 311                 printf("%.2f%% <= %d milliseconds\n", perc, j);
 312             }
 313         }
 314         printf("%.2f requests per second\n\n", reqpersec);
 315     } else {
 316         printf("%s: %.2f requests per second\n", title, reqpersec);
 317     }
 318 }
 319
 320 static void prepareForBenchmark(void)
 321 {
 322     memset(config.latency,0,sizeof(int)*(MAX_LATENCY+1));
 323     config.start = mstime();
 324     config.donerequests = 0;
 325 }
 326
 327 static void endBenchmark(char *title) {
 328     config.totlatency = mstime()-config.start;
 329     showLatencyReport(title);
 330     freeAllClients();
 331 }
 332
 333 void parseOptions(int argc, char **argv) {
 334     int i;
 335
 336     for (i = 1; i < argc; i++) {
 337         int lastarg = i==argc-1;
 338
 339         if (!strcmp(argv[i],"-c") && !lastarg) {
 340             config.numclients = atoi(argv[i+1]);
 341             i++;
 342         } else if (!strcmp(argv[i],"-n") && !lastarg) {
 343             config.requests = atoi(argv[i+1]);
 344             i++;
 345         } else if (!strcmp(argv[i],"-k") && !lastarg) {
 346             config.keepalive = atoi(argv[i+1]);
 347             i++;
 348         } else if (!strcmp(argv[i],"-h") && !lastarg) {
 349             char *ip = zmalloc(32);
 350             if (anetResolve(NULL,argv[i+1],ip) == ANET_ERR) {
 351                 printf("Can't resolve %s\n", argv[i]);
 352                 exit(1);
 353             }
 354             config.hostip = ip;
 355             i++;
 356         } else if (!strcmp(argv[i],"-p") && !lastarg) {
 357             config.hostport = atoi(argv[i+1]);
 358             i++;
 359         } else if (!strcmp(argv[i],"-d") && !lastarg) {
 360             config.datasize = atoi(argv[i+1]);
 361             i++;
 362             if (config.datasize < 1) config.datasize=1;
 363             if (config.datasize > 1024*1024) config.datasize = 1024*1024;
 364         } else if (!strcmp(argv[i],"-r") && !lastarg) {
 365             config.randomkeys = 1;
 366             config.randomkeys_keyspacelen = atoi(argv[i+1]);
 367             if (config.randomkeys_keyspacelen < 0)
 368                 config.randomkeys_keyspacelen = 0;
 369             i++;
 370         } else if (!strcmp(argv[i],"-q")) {
 371             config.quiet = 1;
 372         } else if (!strcmp(argv[i],"-l")) {
 373             config.loop = 1;
 374         } else {
 375             printf("Wrong option '%s' or option argument missing\n\n",argv[i]);
 376             printf("Usage: redis-benchmark [-h <host>] [-p <port>] [-c <clients>] [-n <requests]> [-k <boolean>]\n\n");
 377             printf(" -h <hostname>      Server hostname (default 127.0.0.1)\n");
 378             printf(" -p <hostname>      Server port (default 6379)\n");
 379             printf(" -c <clients>       Number of parallel connections (default 50)\n");
 380             printf(" -n <requests>      Total number of requests (default 10000)\n");
 381             printf(" -d <size>          Data size of SET/GET value in bytes (default 2)\n");
 382             printf(" -k <boolean>       1=keep alive 0=reconnect (default 1)\n");
 383             printf(" -r <keyspacelen>   Use random keys for SET/GET/INCR\n");
 384             printf("  Using this option the benchmark will get/set keys\n");
 385             printf("  in the form mykey_rand000000012456 instead of constant\n");
 386             printf("  keys, the <keyspacelen> argument determines the max\n");
 387             printf("  number of values for the random number. For instance\n");
 388             printf("  if set to 10 only rand000000000000 - rand000000000009\n");
 389             printf("  range will be allowed.\n");
 390             printf(" -q                 Quiet. Just show query/sec values\n");
 391             printf(" -l                 Loop. Run the tests forever\n");
 392             exit(1);
 393         }
 394     }
 395 }
 396
 397 int main(int argc, char **argv) {
 398     client c;
 399
 400     signal(SIGHUP, SIG_IGN);
 401     signal(SIGPIPE, SIG_IGN);
 402
 403     config.numclients = 50;
 404     config.requests = 10000;
 405     config.liveclients = 0;
 406     config.el = aeCreateEventLoop();
 407     config.keepalive = 1;
 408     config.donerequests = 0;
 409     config.datasize = 3;
 410     config.randomkeys = 0;
 411     config.randomkeys_keyspacelen = 0;
 412     config.quiet = 0;
 413     config.loop = 0;
 414     config.latency = NULL;
 415     config.clients = listCreate();
 416     config.latency = zmalloc(sizeof(int)*(MAX_LATENCY+1));
 417
 418     config.hostip = "127.0.0.1";
 419     config.hostport = 6379;
 420
 421     parseOptions(argc,argv);
 422
 423     if (config.keepalive == 0) {
 424         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");
 425     }
 426
 427     do {
 428         prepareForBenchmark();
 429         c = createClient();
 430         if (!c) exit(1);
 431         c->obuf = sdscat(c->obuf,"PING\r\n");
 432         c->replytype = REPLY_RETCODE;
 433         createMissingClients(c);
 434         aeMain(config.el);
 435         endBenchmark("PING");
 436
 437         prepareForBenchmark();
 438         c = createClient();
 439         if (!c) exit(1);
 440         c->obuf = sdscatprintf(c->obuf,"SET foo_rand000000000000 %d\r\n",config.datasize);
 441         {
 442             char *data = zmalloc(config.datasize+2);
 443             memset(data,'x',config.datasize);
 444             data[config.datasize] = '\r';
 445             data[config.datasize+1] = '\n';
 446             c->obuf = sdscatlen(c->obuf,data,config.datasize+2);
 447         }
 448         c->replytype = REPLY_RETCODE;
 449         createMissingClients(c);
 450         aeMain(config.el);
 451         endBenchmark("SET");
 452
 453         prepareForBenchmark();
 454         c = createClient();
 455         if (!c) exit(1);
 456         c->obuf = sdscat(c->obuf,"GET foo_rand000000000000\r\n");
 457         c->replytype = REPLY_BULK;
 458         c->readlen = -1;
 459         createMissingClients(c);
 460         aeMain(config.el);
 461         endBenchmark("GET");
 462
 463         prepareForBenchmark();
 464         c = createClient();
 465         if (!c) exit(1);
 466         c->obuf = sdscat(c->obuf,"INCR counter_rand000000000000\r\n");
 467         c->replytype = REPLY_INT;
 468         createMissingClients(c);
 469         aeMain(config.el);
 470         endBenchmark("INCR");
 471
 472         prepareForBenchmark();
 473         c = createClient();
 474         if (!c) exit(1);
 475         c->obuf = sdscat(c->obuf,"LPUSH mylist 3\r\nbar\r\n");
 476         c->replytype = REPLY_INT;
 477         createMissingClients(c);
 478         aeMain(config.el);
 479         endBenchmark("LPUSH");
 480
 481         prepareForBenchmark();
 482         c = createClient();
 483         if (!c) exit(1);
 484         c->obuf = sdscat(c->obuf,"LPOP mylist\r\n");
 485         c->replytype = REPLY_BULK;
 486         c->readlen = -1;
 487         createMissingClients(c);
 488         aeMain(config.el);
 489         endBenchmark("LPOP");
 490
 491         printf("\n");
 492     } while(config.loop);
 493
 494     return 0;
 495 }