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