src/redis-benchmark.c

   1 /* Redis benchmark utility.
   2  *
   3  * Copyright (c) 2009-2010, 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 #define REPLY_MBULK 3
  52
  53 #define CLIENT_CONNECTING 0
  54 #define CLIENT_SENDQUERY 1
  55 #define CLIENT_READREPLY 2
  56
  57 #define MAX_LATENCY 5000
  58
  59 #define REDIS_NOTUSED(V) ((void) V)
  60
  61 static struct config {
  62     int debug;
  63     int numclients;
  64     int requests;
  65     int liveclients;
  66     int donerequests;
  67     int keysize;
  68     int datasize;
  69     int randomkeys;
  70     int randomkeys_keyspacelen;
  71     aeEventLoop *el;
  72     char *hostip;
  73     int hostport;
  74     char *hostsocket;
  75     int keepalive;
  76     long long start;
  77     long long totlatency;
  78     int *latency;
  79     char *title;
  80     list *clients;
  81     int quiet;
  82     int loop;
  83     int idlemode;
  84 } config;
  85
  86 typedef struct _client {
  87     int state;
  88     int fd;
  89     sds obuf;
  90     sds ibuf;
  91     int mbulk;          /* Number of elements in an mbulk reply */
  92     int readlen;        /* readlen == -1 means read a single line */
  93     int totreceived;
  94     unsigned int written;        /* bytes of 'obuf' already written */
  95     int replytype;
  96     long long start;    /* start time in milliseconds */
  97 } *client;
  98
  99 /* Prototypes */
 100 static void writeHandler(aeEventLoop *el, int fd, void *privdata, int mask);
 101 static void createMissingClients(client c);
 102
 103 /* Implementation */
 104 static long long mstime(void) {
 105     struct timeval tv;
 106     long long mst;
 107
 108     gettimeofday(&tv, NULL);
 109     mst = ((long)tv.tv_sec)*1000;
 110     mst += tv.tv_usec/1000;
 111     return mst;
 112 }
 113
 114 static void freeClient(client c) {
 115     listNode *ln;
 116
 117     aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
 118     aeDeleteFileEvent(config.el,c->fd,AE_READABLE);
 119     sdsfree(c->ibuf);
 120     sdsfree(c->obuf);
 121     close(c->fd);
 122     zfree(c);
 123     config.liveclients--;
 124     ln = listSearchKey(config.clients,c);
 125     assert(ln != NULL);
 126     listDelNode(config.clients,ln);
 127 }
 128
 129 static void freeAllClients(void) {
 130     listNode *ln = config.clients->head, *next;
 131
 132     while(ln) {
 133         next = ln->next;
 134         freeClient(ln->value);
 135         ln = next;
 136     }
 137 }
 138
 139 static void resetClient(client c) {
 140     aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
 141     aeDeleteFileEvent(config.el,c->fd,AE_READABLE);
 142     aeCreateFileEvent(config.el,c->fd, AE_WRITABLE,writeHandler,c);
 143     sdsfree(c->ibuf);
 144     c->ibuf = sdsempty();
 145     c->readlen = (c->replytype == REPLY_BULK ||
 146                   c->replytype == REPLY_MBULK) ? -1 : 0;
 147     c->mbulk = -1;
 148     c->written = 0;
 149     c->totreceived = 0;
 150     c->state = CLIENT_SENDQUERY;
 151     c->start = mstime();
 152     createMissingClients(c);
 153 }
 154
 155 static void randomizeClientKey(client c) {
 156     char *p;
 157     char buf[32];
 158     long r;
 159
 160     p = strstr(c->obuf, "_rand");
 161     if (!p) return;
 162     p += 5;
 163     r = random() % config.randomkeys_keyspacelen;
 164     sprintf(buf,"%ld",r);
 165     memcpy(p,buf,strlen(buf));
 166 }
 167
 168 static void prepareClientForReply(client c, int type) {
 169     if (type == REPLY_BULK) {
 170         c->replytype = REPLY_BULK;
 171         c->readlen = -1;
 172     } else if (type == REPLY_MBULK) {
 173         c->replytype = REPLY_MBULK;
 174         c->readlen = -1;
 175         c->mbulk = -1;
 176     } else {
 177         c->replytype = type;
 178         c->readlen = 0;
 179     }
 180 }
 181
 182 static void clientDone(client c) {
 183     static int last_tot_received = 1;
 184
 185     long long latency;
 186     config.donerequests ++;
 187     latency = mstime() - c->start;
 188     if (latency > MAX_LATENCY) latency = MAX_LATENCY;
 189     config.latency[latency]++;
 190
 191     if (config.debug && last_tot_received != c->totreceived) {
 192         printf("Tot bytes received: %d\n", c->totreceived);
 193         last_tot_received = c->totreceived;
 194     }
 195     if (config.donerequests == config.requests) {
 196         freeClient(c);
 197         aeStop(config.el);
 198         return;
 199     }
 200     if (config.keepalive) {
 201         resetClient(c);
 202         if (config.randomkeys) randomizeClientKey(c);
 203     } else {
 204         config.liveclients--;
 205         createMissingClients(c);
 206         config.liveclients++;
 207         freeClient(c);
 208     }
 209 }
 210
 211 /* Read a length from the buffer pointed to by *p, store the length in *len,
 212  * and return the number of bytes that the cursor advanced. */
 213 static int readLen(char *p, int *len) {
 214     char *tail = strstr(p,"\r\n");
 215     if (tail == NULL)
 216         return 0;
 217     *tail = '\0';
 218     *len = atoi(p+1);
 219     return tail+2-p;
 220 }
 221
 222 static void readHandler(aeEventLoop *el, int fd, void *privdata, int mask)
 223 {
 224     char buf[1024], *p;
 225     int nread, pos=0, len=0;
 226     client c = privdata;
 227     REDIS_NOTUSED(el);
 228     REDIS_NOTUSED(fd);
 229     REDIS_NOTUSED(mask);
 230
 231     nread = read(c->fd,buf,sizeof(buf));
 232     if (nread == -1) {
 233         fprintf(stderr, "Reading from socket: %s\n", strerror(errno));
 234         freeClient(c);
 235         return;
 236     }
 237     if (nread == 0) {
 238         fprintf(stderr, "EOF from client\n");
 239         freeClient(c);
 240         return;
 241     }
 242     c->totreceived += nread;
 243     c->ibuf = sdscatlen(c->ibuf,buf,nread);
 244     len = sdslen(c->ibuf);
 245
 246     if (c->replytype == REPLY_INT ||
 247         c->replytype == REPLY_RETCODE)
 248     {
 249         /* Check if the first line is complete. This is everything we need
 250          * when waiting for an integer or status code reply.*/
 251         if ((p = strstr(c->ibuf,"\r\n")) != NULL)
 252             goto done;
 253     } else if (c->replytype == REPLY_BULK) {
 254         int advance = 0;
 255         if (c->readlen < 0) {
 256             advance = readLen(c->ibuf+pos,&c->readlen);
 257             if (advance) {
 258                 pos += advance;
 259                 if (c->readlen == -1) {
 260                     goto done;
 261                 } else {
 262                     /* include the trailing \r\n */
 263                     c->readlen += 2;
 264                 }
 265             } else {
 266                 goto skip;
 267             }
 268         }
 269
 270         int canconsume;
 271         if (c->readlen > 0) {
 272             canconsume = c->readlen > (len-pos) ? (len-pos) : c->readlen;
 273             c->readlen -= canconsume;
 274             pos += canconsume;
 275         }
 276
 277         if (c->readlen == 0)
 278             goto done;
 279     } else if (c->replytype == REPLY_MBULK) {
 280         int advance = 0;
 281         if (c->mbulk == -1) {
 282             advance = readLen(c->ibuf+pos,&c->mbulk);
 283             if (advance) {
 284                 pos += advance;
 285                 if (c->mbulk == -1)
 286                     goto done;
 287             } else {
 288                 goto skip;
 289             }
 290         }
 291
 292         int canconsume;
 293         while(c->mbulk > 0 && pos < len) {
 294             if (c->readlen > 0) {
 295                 canconsume = c->readlen > (len-pos) ? (len-pos) : c->readlen;
 296                 c->readlen -= canconsume;
 297                 pos += canconsume;
 298                 if (c->readlen == 0)
 299                     c->mbulk--;
 300             } else {
 301                 advance = readLen(c->ibuf+pos,&c->readlen);
 302                 if (advance) {
 303                     pos += advance;
 304                     if (c->readlen == -1) {
 305                         c->mbulk--;
 306                         continue;
 307                     } else {
 308                         /* include the trailing \r\n */
 309                         c->readlen += 2;
 310                     }
 311                 } else {
 312                     goto skip;
 313                 }
 314             }
 315         }
 316
 317         if (c->mbulk == 0)
 318             goto done;
 319     }
 320
 321 skip:
 322     c->ibuf = sdsrange(c->ibuf,pos,-1);
 323     return;
 324 done:
 325     clientDone(c);
 326     return;
 327 }
 328
 329 static void writeHandler(aeEventLoop *el, int fd, void *privdata, int mask)
 330 {
 331     client c = privdata;
 332     REDIS_NOTUSED(el);
 333     REDIS_NOTUSED(fd);
 334     REDIS_NOTUSED(mask);
 335
 336     if (c->state == CLIENT_CONNECTING) {
 337         c->state = CLIENT_SENDQUERY;
 338         c->start = mstime();
 339     }
 340     if (sdslen(c->obuf) > c->written) {
 341         void *ptr = c->obuf+c->written;
 342         int len = sdslen(c->obuf) - c->written;
 343         int nwritten = write(c->fd, ptr, len);
 344         if (nwritten == -1) {
 345             if (errno != EPIPE)
 346                 fprintf(stderr, "Writing to socket: %s\n", strerror(errno));
 347             freeClient(c);
 348             return;
 349         }
 350         c->written += nwritten;
 351         if (sdslen(c->obuf) == c->written) {
 352             aeDeleteFileEvent(config.el,c->fd,AE_WRITABLE);
 353             aeCreateFileEvent(config.el,c->fd,AE_READABLE,readHandler,c);
 354             c->state = CLIENT_READREPLY;
 355         }
 356     }
 357 }
 358
 359 static client createClient(void) {
 360     client c = zmalloc(sizeof(struct _client));
 361     char err[ANET_ERR_LEN];
 362
 363     if (config.hostsocket == NULL)
 364         c->fd = anetTcpNonBlockConnect(err,config.hostip,config.hostport);
 365     else
 366         c->fd = anetUnixNonBlockConnect(err,config.hostsocket);
 367
 368     if (c->fd == ANET_ERR) {
 369         zfree(c);
 370         fprintf(stderr,"Connect: %s\n",err);
 371         return NULL;
 372     }
 373     anetTcpNoDelay(NULL,c->fd);
 374     c->obuf = sdsempty();
 375     c->ibuf = sdsempty();
 376     c->mbulk = -1;
 377     c->readlen = 0;
 378     c->written = 0;
 379     c->totreceived = 0;
 380     c->state = CLIENT_CONNECTING;
 381     aeCreateFileEvent(config.el, c->fd, AE_WRITABLE, writeHandler, c);
 382     config.liveclients++;
 383     listAddNodeTail(config.clients,c);
 384     return c;
 385 }
 386
 387 static void createMissingClients(client c) {
 388     while(config.liveclients < config.numclients) {
 389         client new = createClient();
 390         if (!new) continue;
 391         sdsfree(new->obuf);
 392         new->obuf = sdsdup(c->obuf);
 393         if (config.randomkeys) randomizeClientKey(c);
 394         prepareClientForReply(new,c->replytype);
 395     }
 396 }
 397
 398 static void showLatencyReport(void) {
 399     int j, seen = 0;
 400     float perc, reqpersec;
 401
 402     reqpersec = (float)config.donerequests/((float)config.totlatency/1000);
 403     if (!config.quiet) {
 404         printf("====== %s ======\n", config.title);
 405         printf("  %d requests completed in %.2f seconds\n", config.donerequests,
 406             (float)config.totlatency/1000);
 407         printf("  %d parallel clients\n", config.numclients);
 408         printf("  %d bytes payload\n", config.datasize);
 409         printf("  keep alive: %d\n", config.keepalive);
 410         printf("\n");
 411         for (j = 0; j <= MAX_LATENCY; j++) {
 412             if (config.latency[j]) {
 413                 seen += config.latency[j];
 414                 perc = ((float)seen*100)/config.donerequests;
 415                 printf("%.2f%% <= %d milliseconds\n", perc, j);
 416             }
 417         }
 418         printf("%.2f requests per second\n\n", reqpersec);
 419     } else {
 420         printf("%s: %.2f requests per second\n", config.title, reqpersec);
 421     }
 422 }
 423
 424 static void prepareForBenchmark(char *title) {
 425     memset(config.latency,0,sizeof(int)*(MAX_LATENCY+1));
 426     config.title = title;
 427     config.start = mstime();
 428     config.donerequests = 0;
 429 }
 430
 431 static void endBenchmark(void) {
 432     config.totlatency = mstime()-config.start;
 433     showLatencyReport();
 434     freeAllClients();
 435 }
 436
 437 void parseOptions(int argc, char **argv) {
 438     int i;
 439
 440     for (i = 1; i < argc; i++) {
 441         int lastarg = i==argc-1;
 442
 443         if (!strcmp(argv[i],"-c") && !lastarg) {
 444             config.numclients = atoi(argv[i+1]);
 445             i++;
 446         } else if (!strcmp(argv[i],"-n") && !lastarg) {
 447             config.requests = atoi(argv[i+1]);
 448             i++;
 449         } else if (!strcmp(argv[i],"-k") && !lastarg) {
 450             config.keepalive = atoi(argv[i+1]);
 451             i++;
 452         } else if (!strcmp(argv[i],"-h") && !lastarg) {
 453             char *ip = zmalloc(32);
 454             if (anetResolve(NULL,argv[i+1],ip) == ANET_ERR) {
 455                 printf("Can't resolve %s\n", argv[i]);
 456                 exit(1);
 457             }
 458             config.hostip = ip;
 459             i++;
 460         } else if (!strcmp(argv[i],"-p") && !lastarg) {
 461             config.hostport = atoi(argv[i+1]);
 462             i++;
 463         } else if (!strcmp(argv[i],"-s") && !lastarg) {
 464             config.hostsocket = argv[i+1];
 465             i++;
 466         } else if (!strcmp(argv[i],"-d") && !lastarg) {
 467             config.datasize = atoi(argv[i+1]);
 468             i++;
 469             if (config.datasize < 1) config.datasize=1;
 470             if (config.datasize > 1024*1024) config.datasize = 1024*1024;
 471         } else if (!strcmp(argv[i],"-r") && !lastarg) {
 472             config.randomkeys = 1;
 473             config.randomkeys_keyspacelen = atoi(argv[i+1]);
 474             if (config.randomkeys_keyspacelen < 0)
 475                 config.randomkeys_keyspacelen = 0;
 476             i++;
 477         } else if (!strcmp(argv[i],"-q")) {
 478             config.quiet = 1;
 479         } else if (!strcmp(argv[i],"-l")) {
 480             config.loop = 1;
 481         } else if (!strcmp(argv[i],"-D")) {
 482             config.debug = 1;
 483         } else if (!strcmp(argv[i],"-I")) {
 484             config.idlemode = 1;
 485         } else {
 486             printf("Wrong option '%s' or option argument missing\n\n",argv[i]);
 487             printf("Usage: redis-benchmark [-h <host>] [-p <port>] [-c <clients>] [-n <requests]> [-k <boolean>]\n\n");
 488             printf(" -h <hostname>      Server hostname (default 127.0.0.1)\n");
 489             printf(" -p <port>          Server port (default 6379)\n");
 490             printf(" -s <socket>        Server socket (overrides host and port)\n");
 491             printf(" -c <clients>       Number of parallel connections (default 50)\n");
 492             printf(" -n <requests>      Total number of requests (default 10000)\n");
 493             printf(" -d <size>          Data size of SET/GET value in bytes (default 2)\n");
 494             printf(" -k <boolean>       1=keep alive 0=reconnect (default 1)\n");
 495             printf(" -r <keyspacelen>   Use random keys for SET/GET/INCR, random values for SADD\n");
 496             printf("  Using this option the benchmark will get/set keys\n");
 497             printf("  in the form mykey_rand000000012456 instead of constant\n");
 498             printf("  keys, the <keyspacelen> argument determines the max\n");
 499             printf("  number of values for the random number. For instance\n");
 500             printf("  if set to 10 only rand000000000000 - rand000000000009\n");
 501             printf("  range will be allowed.\n");
 502             printf(" -q                 Quiet. Just show query/sec values\n");
 503             printf(" -l                 Loop. Run the tests forever\n");
 504             printf(" -I                 Idle mode. Just open N idle connections and wait.\n");
 505             printf(" -D                 Debug mode. more verbose.\n");
 506             exit(1);
 507         }
 508     }
 509 }
 510
 511 int showThroughput(struct aeEventLoop *eventLoop, long long id, void *clientData) {
 512     REDIS_NOTUSED(eventLoop);
 513     REDIS_NOTUSED(id);
 514     REDIS_NOTUSED(clientData);
 515
 516     float dt = (float)(mstime()-config.start)/1000.0;
 517     float rps = (float)config.donerequests/dt;
 518     printf("%s: %.2f\r", config.title, rps);
 519     fflush(stdout);
 520     return 250; /* every 250ms */
 521 }
 522
 523 int main(int argc, char **argv) {
 524     client c;
 525
 526     signal(SIGHUP, SIG_IGN);
 527     signal(SIGPIPE, SIG_IGN);
 528
 529     config.debug = 0;
 530     config.numclients = 50;
 531     config.requests = 10000;
 532     config.liveclients = 0;
 533     config.el = aeCreateEventLoop();
 534     aeCreateTimeEvent(config.el,1,showThroughput,NULL,NULL);
 535     config.keepalive = 1;
 536     config.donerequests = 0;
 537     config.datasize = 3;
 538     config.randomkeys = 0;
 539     config.randomkeys_keyspacelen = 0;
 540     config.quiet = 0;
 541     config.loop = 0;
 542     config.idlemode = 0;
 543     config.latency = NULL;
 544     config.clients = listCreate();
 545     config.latency = zmalloc(sizeof(int)*(MAX_LATENCY+1));
 546
 547     config.hostip = "127.0.0.1";
 548     config.hostport = 6379;
 549     config.hostsocket = NULL;
 550
 551     parseOptions(argc,argv);
 552
 553     if (config.keepalive == 0) {
 554         printf("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");
 555     }
 556
 557     if (config.idlemode) {
 558         printf("Creating %d idle connections and waiting forever (Ctrl+C when done)\n", config.numclients);
 559         prepareForBenchmark("IDLE");
 560         c = createClient();
 561         if (!c) exit(1);
 562         c->obuf = sdsempty();
 563         prepareClientForReply(c,REPLY_RETCODE); /* will never receive it */
 564         createMissingClients(c);
 565         aeMain(config.el);
 566         /* and will wait for every */
 567     }
 568
 569     do {
 570         prepareForBenchmark("PING");
 571         c = createClient();
 572         if (!c) exit(1);
 573         c->obuf = sdscat(c->obuf,"PING\r\n");
 574         prepareClientForReply(c,REPLY_RETCODE);
 575         createMissingClients(c);
 576         aeMain(config.el);
 577         endBenchmark();
 578
 579         prepareForBenchmark("PING (multi bulk)");
 580         c = createClient();
 581         if (!c) exit(1);
 582         c->obuf = sdscat(c->obuf,"*1\r\n$4\r\nPING\r\n");
 583         prepareClientForReply(c,REPLY_RETCODE);
 584         createMissingClients(c);
 585         aeMain(config.el);
 586         endBenchmark();
 587
 588         prepareForBenchmark("MSET (10 keys, multi bulk)");
 589         c = createClient();
 590         if (!c) exit(1);
 591         c->obuf = sdscatprintf(c->obuf,"*%d\r\n$4\r\nMSET\r\n", 11);
 592         {
 593             int i;
 594             char *data = zmalloc(config.datasize+2);
 595             memset(data,'x',config.datasize);
 596             for (i = 0; i < 10; i++) {
 597                 c->obuf = sdscatprintf(c->obuf,"$%d\r\n%s\r\n",config.datasize,data);
 598             }
 599             zfree(data);
 600         }
 601         prepareClientForReply(c,REPLY_RETCODE);
 602         createMissingClients(c);
 603         aeMain(config.el);
 604         endBenchmark();
 605
 606         prepareForBenchmark("SET");
 607         c = createClient();
 608         if (!c) exit(1);
 609         c->obuf = sdscat(c->obuf,"SET foo_rand000000000000 ");
 610         {
 611             char *data = zmalloc(config.datasize+2);
 612             memset(data,'x',config.datasize);
 613             data[config.datasize] = '\r';
 614             data[config.datasize+1] = '\n';
 615             c->obuf = sdscatlen(c->obuf,data,config.datasize+2);
 616         }
 617         prepareClientForReply(c,REPLY_RETCODE);
 618         createMissingClients(c);
 619         aeMain(config.el);
 620         endBenchmark();
 621
 622         prepareForBenchmark("GET");
 623         c = createClient();
 624         if (!c) exit(1);
 625         c->obuf = sdscat(c->obuf,"GET foo_rand000000000000\r\n");
 626         prepareClientForReply(c,REPLY_BULK);
 627         createMissingClients(c);
 628         aeMain(config.el);
 629         endBenchmark();
 630
 631         prepareForBenchmark("INCR");
 632         c = createClient();
 633         if (!c) exit(1);
 634         c->obuf = sdscat(c->obuf,"INCR counter_rand000000000000\r\n");
 635         prepareClientForReply(c,REPLY_INT);
 636         createMissingClients(c);
 637         aeMain(config.el);
 638         endBenchmark();
 639
 640         prepareForBenchmark("LPUSH");
 641         c = createClient();
 642         if (!c) exit(1);
 643         c->obuf = sdscat(c->obuf,"LPUSH mylist bar\r\n");
 644         prepareClientForReply(c,REPLY_INT);
 645         createMissingClients(c);
 646         aeMain(config.el);
 647         endBenchmark();
 648
 649         prepareForBenchmark("LPOP");
 650         c = createClient();
 651         if (!c) exit(1);
 652         c->obuf = sdscat(c->obuf,"LPOP mylist\r\n");
 653         prepareClientForReply(c,REPLY_BULK);
 654         createMissingClients(c);
 655         aeMain(config.el);
 656         endBenchmark();
 657
 658         prepareForBenchmark("SADD");
 659         c = createClient();
 660         if (!c) exit(1);
 661         c->obuf = sdscat(c->obuf,"SADD myset counter_rand000000000000\r\n");
 662         prepareClientForReply(c,REPLY_RETCODE);
 663         createMissingClients(c);
 664         aeMain(config.el);
 665         endBenchmark();
 666
 667         prepareForBenchmark("SPOP");
 668         c = createClient();
 669         if (!c) exit(1);
 670         c->obuf = sdscat(c->obuf,"SPOP myset\r\n");
 671         prepareClientForReply(c,REPLY_BULK);
 672         createMissingClients(c);
 673         aeMain(config.el);
 674         endBenchmark();
 675
 676         prepareForBenchmark("LPUSH (again, in order to bench LRANGE)");
 677         c = createClient();
 678         if (!c) exit(1);
 679         c->obuf = sdscat(c->obuf,"LPUSH mylist bar\r\n");
 680         prepareClientForReply(c,REPLY_RETCODE);
 681         createMissingClients(c);
 682         aeMain(config.el);
 683         endBenchmark();
 684
 685         prepareForBenchmark("LRANGE (first 100 elements)");
 686         c = createClient();
 687         if (!c) exit(1);
 688         c->obuf = sdscat(c->obuf,"LRANGE mylist 0 99\r\n");
 689         prepareClientForReply(c,REPLY_MBULK);
 690         createMissingClients(c);
 691         aeMain(config.el);
 692         endBenchmark();
 693
 694         prepareForBenchmark("LRANGE (first 300 elements)");
 695         c = createClient();
 696         if (!c) exit(1);
 697         c->obuf = sdscat(c->obuf,"LRANGE mylist 0 299\r\n");
 698         prepareClientForReply(c,REPLY_MBULK);
 699         createMissingClients(c);
 700         aeMain(config.el);
 701         endBenchmark();
 702
 703         prepareForBenchmark("LRANGE (first 450 elements)");
 704         c = createClient();
 705         if (!c) exit(1);
 706         c->obuf = sdscat(c->obuf,"LRANGE mylist 0 449\r\n");
 707         prepareClientForReply(c,REPLY_MBULK);
 708         createMissingClients(c);
 709         aeMain(config.el);
 710         endBenchmark();
 711
 712         prepareForBenchmark("LRANGE (first 600 elements)");
 713         c = createClient();
 714         if (!c) exit(1);
 715         c->obuf = sdscat(c->obuf,"LRANGE mylist 0 599\r\n");
 716         prepareClientForReply(c,REPLY_MBULK);
 717         createMissingClients(c);
 718         aeMain(config.el);
 719         endBenchmark();
 720
 721         printf("\n");
 722     } while(config.loop);
 723
 724     return 0;
 725 }