src/redis-benchmark.c

   1 /* Redis benchmark utility.
   2  *
   3  * Copyright (c) 2009-2012, 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 <time.h>
  39 #include <sys/time.h>
  40 #include <signal.h>
  41 #include <assert.h>
  42
  43 #include "ae.h"
  44 #include "hiredis.h"
  45 #include "sds.h"
  46 #include "adlist.h"
  47 #include "zmalloc.h"
  48
  49 #define REDIS_NOTUSED(V) ((void) V)
  50
  51 static struct config {
  52     aeEventLoop *el;
  53     const char *hostip;
  54     int hostport;
  55     const char *hostsocket;
  56     int numclients;
  57     int liveclients;
  58     int requests;
  59     int requests_issued;
  60     int requests_finished;
  61     int keysize;
  62     int datasize;
  63     int randomkeys;
  64     int randomkeys_keyspacelen;
  65     int keepalive;
  66     int pipeline;
  67     long long start;
  68     long long totlatency;
  69     long long *latency;
  70     const char *title;
  71     list *clients;
  72     int quiet;
  73     int csv;
  74     int loop;
  75     int idlemode;
  76     char *tests;
  77 } config;
  78
  79 typedef struct _client {
  80     redisContext *context;
  81     sds obuf;
  82     char *randptr[32]; /* needed for MSET against 10 keys */
  83     size_t randlen;
  84     unsigned int written; /* bytes of 'obuf' already written */
  85     long long start; /* start time of a request */
  86     long long latency; /* request latency */
  87     int pending;    /* Number of pending requests (sent but no reply received) */
  88 } *client;
  89
  90 /* Prototypes */
  91 static void writeHandler(aeEventLoop *el, int fd, void *privdata, int mask);
  92 static void createMissingClients(client c);
  93
  94 /* Implementation */
  95 static long long ustime(void) {
  96     struct timeval tv;
  97     long long ust;
  98
  99     gettimeofday(&tv, NULL);
 100     ust = ((long)tv.tv_sec)*1000000;
 101     ust += tv.tv_usec;
 102     return ust;
 103 }
 104
 105 static long long mstime(void) {
 106     struct timeval tv;
 107     long long mst;
 108
 109     gettimeofday(&tv, NULL);
 110     mst = ((long)tv.tv_sec)*1000;
 111     mst += tv.tv_usec/1000;
 112     return mst;
 113 }
 114
 115 static void freeClient(client c) {
 116     listNode *ln;
 117     aeDeleteFileEvent(config.el,c->context->fd,AE_WRITABLE);
 118     aeDeleteFileEvent(config.el,c->context->fd,AE_READABLE);
 119     redisFree(c->context);
 120     sdsfree(c->obuf);
 121     zfree(c);
 122     config.liveclients--;
 123     ln = listSearchKey(config.clients,c);
 124     assert(ln != NULL);
 125     listDelNode(config.clients,ln);
 126 }
 127
 128 static void freeAllClients(void) {
 129     listNode *ln = config.clients->head, *next;
 130
 131     while(ln) {
 132         next = ln->next;
 133         freeClient(ln->value);
 134         ln = next;
 135     }
 136 }
 137
 138 static void resetClient(client c) {
 139     aeDeleteFileEvent(config.el,c->context->fd,AE_WRITABLE);
 140     aeDeleteFileEvent(config.el,c->context->fd,AE_READABLE);
 141     aeCreateFileEvent(config.el,c->context->fd,AE_WRITABLE,writeHandler,c);
 142     c->written = 0;
 143     c->pending = config.pipeline;
 144 }
 145
 146 static void randomizeClientKey(client c) {
 147     char buf[32];
 148     size_t i, r;
 149
 150     for (i = 0; i < c->randlen; i++) {
 151         r = random() % config.randomkeys_keyspacelen;
 152         snprintf(buf,sizeof(buf),"%012zu",r);
 153         memcpy(c->randptr[i],buf,12);
 154     }
 155 }
 156
 157 static void clientDone(client c) {
 158     if (config.requests_finished == config.requests) {
 159         freeClient(c);
 160         aeStop(config.el);
 161         return;
 162     }
 163     if (config.keepalive) {
 164         resetClient(c);
 165     } else {
 166         config.liveclients--;
 167         createMissingClients(c);
 168         config.liveclients++;
 169         freeClient(c);
 170     }
 171 }
 172
 173 static void readHandler(aeEventLoop *el, int fd, void *privdata, int mask) {
 174     client c = privdata;
 175     void *reply = NULL;
 176     REDIS_NOTUSED(el);
 177     REDIS_NOTUSED(fd);
 178     REDIS_NOTUSED(mask);
 179
 180     /* Calculate latency only for the first read event. This means that the
 181      * server already sent the reply and we need to parse it. Parsing overhead
 182      * is not part of the latency, so calculate it only once, here. */
 183     if (c->latency < 0) c->latency = ustime()-(c->start);
 184
 185     if (redisBufferRead(c->context) != REDIS_OK) {
 186         fprintf(stderr,"Error: %s\n",c->context->errstr);
 187         exit(1);
 188     } else {
 189         while(c->pending) {
 190             if (redisGetReply(c->context,&reply) != REDIS_OK) {
 191                 fprintf(stderr,"Error: %s\n",c->context->errstr);
 192                 exit(1);
 193             }
 194             if (reply != NULL) {
 195                 if (reply == (void*)REDIS_REPLY_ERROR) {
 196                     fprintf(stderr,"Unexpected error reply, exiting...\n");
 197                     exit(1);
 198                 }
 199
 200                 freeReplyObject(reply);
 201
 202                 if (config.requests_finished < config.requests)
 203                     config.latency[config.requests_finished++] = c->latency;
 204                 c->pending--;
 205                 if (c->pending == 0) {
 206                     clientDone(c);
 207                     break;
 208                 }
 209             } else {
 210                 break;
 211             }
 212         }
 213     }
 214 }
 215
 216 static void writeHandler(aeEventLoop *el, int fd, void *privdata, int mask) {
 217     client c = privdata;
 218     REDIS_NOTUSED(el);
 219     REDIS_NOTUSED(fd);
 220     REDIS_NOTUSED(mask);
 221
 222     /* Initialize request when nothing was written. */
 223     if (c->written == 0) {
 224         /* Enforce upper bound to number of requests. */
 225         if (config.requests_issued++ >= config.requests) {
 226             freeClient(c);
 227             return;
 228         }
 229
 230         /* Really initialize: randomize keys and set start time. */
 231         if (config.randomkeys) randomizeClientKey(c);
 232         c->start = ustime();
 233         c->latency = -1;
 234     }
 235
 236     if (sdslen(c->obuf) > c->written) {
 237         void *ptr = c->obuf+c->written;
 238         int nwritten = write(c->context->fd,ptr,sdslen(c->obuf)-c->written);
 239         if (nwritten == -1) {
 240             if (errno != EPIPE)
 241                 fprintf(stderr, "Writing to socket: %s\n", strerror(errno));
 242             freeClient(c);
 243             return;
 244         }
 245         c->written += nwritten;
 246         if (sdslen(c->obuf) == c->written) {
 247             aeDeleteFileEvent(config.el,c->context->fd,AE_WRITABLE);
 248             aeCreateFileEvent(config.el,c->context->fd,AE_READABLE,readHandler,c);
 249         }
 250     }
 251 }
 252
 253 static client createClient(char *cmd, size_t len) {
 254     int j;
 255     client c = zmalloc(sizeof(struct _client));
 256
 257     if (config.hostsocket == NULL) {
 258         c->context = redisConnectNonBlock(config.hostip,config.hostport);
 259     } else {
 260         c->context = redisConnectUnixNonBlock(config.hostsocket);
 261     }
 262     if (c->context->err) {
 263         fprintf(stderr,"Could not connect to Redis at ");
 264         if (config.hostsocket == NULL)
 265             fprintf(stderr,"%s:%d: %s\n",config.hostip,config.hostport,c->context->errstr);
 266         else
 267             fprintf(stderr,"%s: %s\n",config.hostsocket,c->context->errstr);
 268         exit(1);
 269     }
 270     /* Suppress hiredis cleanup of unused buffers for max speed. */
 271     c->context->reader->maxbuf = 0;
 272     /* Queue N requests accordingly to the pipeline size. */
 273     c->obuf = sdsempty();
 274     for (j = 0; j < config.pipeline; j++)
 275         c->obuf = sdscatlen(c->obuf,cmd,len);
 276     c->randlen = 0;
 277     c->written = 0;
 278     c->pending = config.pipeline;
 279
 280     /* Find substrings in the output buffer that need to be randomized. */
 281     if (config.randomkeys) {
 282         char *p = c->obuf;
 283         while ((p = strstr(p,":rand:")) != NULL) {
 284             assert(c->randlen < (signed)(sizeof(c->randptr)/sizeof(char*)));
 285             c->randptr[c->randlen++] = p+6;
 286             p += 6;
 287         }
 288     }
 289
 290 /*    redisSetReplyObjectFunctions(c->context,NULL); */
 291     aeCreateFileEvent(config.el,c->context->fd,AE_WRITABLE,writeHandler,c);
 292     listAddNodeTail(config.clients,c);
 293     config.liveclients++;
 294     return c;
 295 }
 296
 297 static void createMissingClients(client c) {
 298     int n = 0;
 299
 300     while(config.liveclients < config.numclients) {
 301         createClient(c->obuf,sdslen(c->obuf)/config.pipeline);
 302
 303         /* Listen backlog is quite limited on most systems */
 304         if (++n > 64) {
 305             usleep(50000);
 306             n = 0;
 307         }
 308     }
 309 }
 310
 311 static int compareLatency(const void *a, const void *b) {
 312     return (*(long long*)a)-(*(long long*)b);
 313 }
 314
 315 static void showLatencyReport(void) {
 316     int i, curlat = 0;
 317     float perc, reqpersec;
 318
 319     reqpersec = (float)config.requests_finished/((float)config.totlatency/1000);
 320     if (!config.quiet && !config.csv) {
 321         printf("====== %s ======\n", config.title);
 322         printf("  %d requests completed in %.2f seconds\n", config.requests_finished,
 323             (float)config.totlatency/1000);
 324         printf("  %d parallel clients\n", config.numclients);
 325         printf("  %d bytes payload\n", config.datasize);
 326         printf("  keep alive: %d\n", config.keepalive);
 327         printf("\n");
 328
 329         qsort(config.latency,config.requests,sizeof(long long),compareLatency);
 330         for (i = 0; i < config.requests; i++) {
 331             if (config.latency[i]/1000 != curlat || i == (config.requests-1)) {
 332                 curlat = config.latency[i]/1000;
 333                 perc = ((float)(i+1)*100)/config.requests;
 334                 printf("%.2f%% <= %d milliseconds\n", perc, curlat);
 335             }
 336         }
 337         printf("%.2f requests per second\n\n", reqpersec);
 338     } else if (config.csv) {
 339         printf("\"%s\",\"%.2f\"\n", config.title, reqpersec);
 340     } else {
 341         printf("%s: %.2f requests per second\n", config.title, reqpersec);
 342     }
 343 }
 344
 345 static void benchmark(char *title, char *cmd, int len) {
 346     client c;
 347
 348     config.title = title;
 349     config.requests_issued = 0;
 350     config.requests_finished = 0;
 351
 352     c = createClient(cmd,len);
 353     createMissingClients(c);
 354
 355     config.start = mstime();
 356     aeMain(config.el);
 357     config.totlatency = mstime()-config.start;
 358
 359     showLatencyReport();
 360     freeAllClients();
 361 }
 362
 363 /* Returns number of consumed options. */
 364 int parseOptions(int argc, const char **argv) {
 365     int i;
 366     int lastarg;
 367     int exit_status = 1;
 368
 369     for (i = 1; i < argc; i++) {
 370         lastarg = (i == (argc-1));
 371
 372         if (!strcmp(argv[i],"-c")) {
 373             if (lastarg) goto invalid;
 374             config.numclients = atoi(argv[++i]);
 375         } else if (!strcmp(argv[i],"-n")) {
 376             if (lastarg) goto invalid;
 377             config.requests = atoi(argv[++i]);
 378         } else if (!strcmp(argv[i],"-k")) {
 379             if (lastarg) goto invalid;
 380             config.keepalive = atoi(argv[++i]);
 381         } else if (!strcmp(argv[i],"-h")) {
 382             if (lastarg) goto invalid;
 383             config.hostip = strdup(argv[++i]);
 384         } else if (!strcmp(argv[i],"-p")) {
 385             if (lastarg) goto invalid;
 386             config.hostport = atoi(argv[++i]);
 387         } else if (!strcmp(argv[i],"-s")) {
 388             if (lastarg) goto invalid;
 389             config.hostsocket = strdup(argv[++i]);
 390         } else if (!strcmp(argv[i],"-d")) {
 391             if (lastarg) goto invalid;
 392             config.datasize = atoi(argv[++i]);
 393             if (config.datasize < 1) config.datasize=1;
 394             if (config.datasize > 1024*1024*1024) config.datasize = 1024*1024*1024;
 395         } else if (!strcmp(argv[i],"-P")) {
 396             if (lastarg) goto invalid;
 397             config.pipeline = atoi(argv[++i]);
 398             if (config.pipeline <= 0) config.pipeline=1;
 399         } else if (!strcmp(argv[i],"-r")) {
 400             if (lastarg) goto invalid;
 401             config.randomkeys = 1;
 402             config.randomkeys_keyspacelen = atoi(argv[++i]);
 403             if (config.randomkeys_keyspacelen < 0)
 404                 config.randomkeys_keyspacelen = 0;
 405         } else if (!strcmp(argv[i],"-q")) {
 406             config.quiet = 1;
 407         } else if (!strcmp(argv[i],"--csv")) {
 408             config.csv = 1;
 409         } else if (!strcmp(argv[i],"-l")) {
 410             config.loop = 1;
 411         } else if (!strcmp(argv[i],"-I")) {
 412             config.idlemode = 1;
 413         } else if (!strcmp(argv[i],"-t")) {
 414             if (lastarg) goto invalid;
 415             /* We get the list of tests to run as a string in the form
 416              * get,set,lrange,...,test_N. Then we add a comma before and
 417              * after the string in order to make sure that searching
 418              * for ",testname," will always get a match if the test is
 419              * enabled. */
 420             config.tests = sdsnew(",");
 421             config.tests = sdscat(config.tests,(char*)argv[++i]);
 422             config.tests = sdscat(config.tests,",");
 423             sdstolower(config.tests);
 424         } else if (!strcmp(argv[i],"--help")) {
 425             exit_status = 0;
 426             goto usage;
 427         } else {
 428             /* Assume the user meant to provide an option when the arg starts
 429              * with a dash. We're done otherwise and should use the remainder
 430              * as the command and arguments for running the benchmark. */
 431             if (argv[i][0] == '-') goto invalid;
 432             return i;
 433         }
 434     }
 435
 436     return i;
 437
 438 invalid:
 439     printf("Invalid option \"%s\" or option argument missing\n\n",argv[i]);
 440
 441 usage:
 442     printf(
 443 "Usage: redis-benchmark [-h <host>] [-p <port>] [-c <clients>] [-n <requests]> [-k <boolean>]\n\n"
 444 " -h <hostname>      Server hostname (default 127.0.0.1)\n"
 445 " -p <port>          Server port (default 6379)\n"
 446 " -s <socket>        Server socket (overrides host and port)\n"
 447 " -c <clients>       Number of parallel connections (default 50)\n"
 448 " -n <requests>      Total number of requests (default 10000)\n"
 449 " -d <size>          Data size of SET/GET value in bytes (default 2)\n"
 450 " -k <boolean>       1=keep alive 0=reconnect (default 1)\n"
 451 " -r <keyspacelen>   Use random keys for SET/GET/INCR, random values for SADD\n"
 452 "  Using this option the benchmark will get/set keys\n"
 453 "  in the form mykey_rand:000000012456 instead of constant\n"
 454 "  keys, the <keyspacelen> argument determines the max\n"
 455 "  number of values for the random number. For instance\n"
 456 "  if set to 10 only rand:000000000000 - rand:000000000009\n"
 457 "  range will be allowed.\n"
 458 " -P <numreq>        Pipeline <numreq> requests. Default 1 (no pipeline).\n"
 459 " -q                 Quiet. Just show query/sec values\n"
 460 " --csv              Output in CSV format\n"
 461 " -l                 Loop. Run the tests forever\n"
 462 " -t <tests>         Only run the comma separated list of tests. The test\n"
 463 "                    names are the same as the ones produced as output.\n"
 464 " -I                 Idle mode. Just open N idle connections and wait.\n\n"
 465 "Examples:\n\n"
 466 " Run the benchmark with the default configuration against 127.0.0.1:6379:\n"
 467 "   $ redis-benchmark\n\n"
 468 " Use 20 parallel clients, for a total of 100k requests, against 192.168.1.1:\n"
 469 "   $ redis-benchmark -h 192.168.1.1 -p 6379 -n 100000 -c 20\n\n"
 470 " Fill 127.0.0.1:6379 with about 1 million keys only using the SET test:\n"
 471 "   $ redis-benchmark -t set -n 1000000 -r 100000000\n\n"
 472 " Benchmark 127.0.0.1:6379 for a few commands producing CSV output:\n"
 473 "   $ redis-benchmark -t ping,set,get -n 100000 --csv\n\n"
 474 " Fill a list with 10000 random elements:\n"
 475 "   $ redis-benchmark -r 10000 -n 10000 lpush mylist ele:rand:000000000000\n\n"
 476     );
 477     exit(exit_status);
 478 }
 479
 480 int showThroughput(struct aeEventLoop *eventLoop, long long id, void *clientData) {
 481     REDIS_NOTUSED(eventLoop);
 482     REDIS_NOTUSED(id);
 483     REDIS_NOTUSED(clientData);
 484
 485     if (config.csv) return 250;
 486     float dt = (float)(mstime()-config.start)/1000.0;
 487     float rps = (float)config.requests_finished/dt;
 488     printf("%s: %.2f\r", config.title, rps);
 489     fflush(stdout);
 490     return 250; /* every 250ms */
 491 }
 492
 493 /* Return true if the named test was selected using the -t command line
 494  * switch, or if all the tests are selected (no -t passed by user). */
 495 int test_is_selected(char *name) {
 496     char buf[256];
 497     int l = strlen(name);
 498
 499     if (config.tests == NULL) return 1;
 500     buf[0] = ',';
 501     memcpy(buf+1,name,l);
 502     buf[l+1] = ',';
 503     buf[l+2] = '\0';
 504     return strstr(config.tests,buf) != NULL;
 505 }
 506
 507 int main(int argc, const char **argv) {
 508     int i;
 509     char *data, *cmd;
 510     int len;
 511
 512     client c;
 513
 514     srandom(time(NULL));
 515     signal(SIGHUP, SIG_IGN);
 516     signal(SIGPIPE, SIG_IGN);
 517
 518     config.numclients = 50;
 519     config.requests = 10000;
 520     config.liveclients = 0;
 521     config.el = aeCreateEventLoop(1024*10);
 522     aeCreateTimeEvent(config.el,1,showThroughput,NULL,NULL);
 523     config.keepalive = 1;
 524     config.datasize = 3;
 525     config.pipeline = 1;
 526     config.randomkeys = 0;
 527     config.randomkeys_keyspacelen = 0;
 528     config.quiet = 0;
 529     config.csv = 0;
 530     config.loop = 0;
 531     config.idlemode = 0;
 532     config.latency = NULL;
 533     config.clients = listCreate();
 534     config.hostip = "127.0.0.1";
 535     config.hostport = 6379;
 536     config.hostsocket = NULL;
 537     config.tests = NULL;
 538
 539     i = parseOptions(argc,argv);
 540     argc -= i;
 541     argv += i;
 542
 543     config.latency = zmalloc(sizeof(long long)*config.requests);
 544
 545     if (config.keepalive == 0) {
 546         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");
 547     }
 548
 549     if (config.idlemode) {
 550         printf("Creating %d idle connections and waiting forever (Ctrl+C when done)\n", config.numclients);
 551         c = createClient("",0); /* will never receive a reply */
 552         createMissingClients(c);
 553         aeMain(config.el);
 554         /* and will wait for every */
 555     }
 556
 557     /* Run benchmark with command in the remainder of the arguments. */
 558     if (argc) {
 559         sds title = sdsnew(argv[0]);
 560         for (i = 1; i < argc; i++) {
 561             title = sdscatlen(title, " ", 1);
 562             title = sdscatlen(title, (char*)argv[i], strlen(argv[i]));
 563         }
 564
 565         do {
 566             len = redisFormatCommandArgv(&cmd,argc,argv,NULL);
 567             benchmark(title,cmd,len);
 568             free(cmd);
 569         } while(config.loop);
 570
 571         return 0;
 572     }
 573
 574     /* Run default benchmark suite. */
 575     do {
 576         data = zmalloc(config.datasize+1);
 577         memset(data,'x',config.datasize);
 578         data[config.datasize] = '\0';
 579
 580         if (test_is_selected("ping_inline") || test_is_selected("ping"))
 581             benchmark("PING_INLINE","PING\r\n",6);
 582
 583         if (test_is_selected("ping_mbulk") || test_is_selected("ping")) {
 584             len = redisFormatCommand(&cmd,"PING");
 585             benchmark("PING_BULK",cmd,len);
 586             free(cmd);
 587         }
 588
 589         if (test_is_selected("set")) {
 590             len = redisFormatCommand(&cmd,"SET foo:rand:000000000000 %s",data);
 591             benchmark("SET",cmd,len);
 592             free(cmd);
 593         }
 594
 595         if (test_is_selected("get")) {
 596             len = redisFormatCommand(&cmd,"GET foo:rand:000000000000");
 597             benchmark("GET",cmd,len);
 598             free(cmd);
 599         }
 600
 601         if (test_is_selected("incr")) {
 602             len = redisFormatCommand(&cmd,"INCR counter:rand:000000000000");
 603             benchmark("INCR",cmd,len);
 604             free(cmd);
 605         }
 606
 607         if (test_is_selected("lpush")) {
 608             len = redisFormatCommand(&cmd,"LPUSH mylist %s",data);
 609             benchmark("LPUSH",cmd,len);
 610             free(cmd);
 611         }
 612
 613         if (test_is_selected("lpop")) {
 614             len = redisFormatCommand(&cmd,"LPOP mylist");
 615             benchmark("LPOP",cmd,len);
 616             free(cmd);
 617         }
 618
 619         if (test_is_selected("sadd")) {
 620             len = redisFormatCommand(&cmd,
 621                 "SADD myset counter:rand:000000000000");
 622             benchmark("SADD",cmd,len);
 623             free(cmd);
 624         }
 625
 626         if (test_is_selected("spop")) {
 627             len = redisFormatCommand(&cmd,"SPOP myset");
 628             benchmark("SPOP",cmd,len);
 629             free(cmd);
 630         }
 631
 632         if (test_is_selected("lrange") ||
 633             test_is_selected("lrange_100") ||
 634             test_is_selected("lrange_300") ||
 635             test_is_selected("lrange_500") ||
 636             test_is_selected("lrange_600"))
 637         {
 638             len = redisFormatCommand(&cmd,"LPUSH mylist %s",data);
 639             benchmark("LPUSH (needed to benchmark LRANGE)",cmd,len);
 640             free(cmd);
 641         }
 642
 643         if (test_is_selected("lrange") || test_is_selected("lrange_100")) {
 644             len = redisFormatCommand(&cmd,"LRANGE mylist 0 99");
 645             benchmark("LRANGE_100 (first 100 elements)",cmd,len);
 646             free(cmd);
 647         }
 648
 649         if (test_is_selected("lrange") || test_is_selected("lrange_300")) {
 650             len = redisFormatCommand(&cmd,"LRANGE mylist 0 299");
 651             benchmark("LRANGE_300 (first 300 elements)",cmd,len);
 652             free(cmd);
 653         }
 654
 655         if (test_is_selected("lrange") || test_is_selected("lrange_500")) {
 656             len = redisFormatCommand(&cmd,"LRANGE mylist 0 449");
 657             benchmark("LRANGE_500 (first 450 elements)",cmd,len);
 658             free(cmd);
 659         }
 660
 661         if (test_is_selected("lrange") || test_is_selected("lrange_600")) {
 662             len = redisFormatCommand(&cmd,"LRANGE mylist 0 599");
 663             benchmark("LRANGE_600 (first 600 elements)",cmd,len);
 664             free(cmd);
 665         }
 666
 667         if (test_is_selected("mset")) {
 668             const char *argv[21];
 669             argv[0] = "MSET";
 670             for (i = 1; i < 21; i += 2) {
 671                 argv[i] = "foo:rand:000000000000";
 672                 argv[i+1] = data;
 673             }
 674             len = redisFormatCommandArgv(&cmd,21,argv,NULL);
 675             benchmark("MSET (10 keys)",cmd,len);
 676             free(cmd);
 677         }
 678
 679         if (!config.csv) printf("\n");
 680     } while(config.loop);
 681
 682     return 0;
 683 }