git.m6w6.name Git - m6w6/libmemcached/blob - clients/memslap.cc

   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  Libmemcached library
   4  *
   5  *  Copyright (C) 2011 Data Differential, http://datadifferential.com/
   6  *  Copyright (C) 2006-2009 Brian Aker All rights reserved.
   7  *
   8  *  Redistribution and use in source and binary forms, with or without
   9  *  modification, are permitted provided that the following conditions are
  10  *  met:
  11  *
  12  *      * Redistributions of source code must retain the above copyright
  13  *  notice, this list of conditions and the following disclaimer.
  14  *
  15  *      * Redistributions in binary form must reproduce the above
  16  *  copyright notice, this list of conditions and the following disclaimer
  17  *  in the documentation and/or other materials provided with the
  18  *  distribution.
  19  *
  20  *      * The names of its contributors may not be used to endorse or
  21  *  promote products derived from this software without specific prior
  22  *  written permission.
  23  *
  24  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  25  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  26  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  27  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  28  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  29  *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  30  *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  31  *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  32  *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  33  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  34  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  *
  36  */
  37
  38
  39 #include <config.h>
  40
  41 #include <cassert>
  42 #include <cstdio>
  43 #include <cstdlib>
  44 #include <cstring>
  45 #include <fcntl.h>
  46 #include <getopt.h>
  47 #include <memory>
  48 #include <pthread.h>
  49 #include <sys/mman.h>
  50 #include <sys/stat.h>
  51 #include <sys/time.h>
  52 #include <sys/types.h>
  53 #include <sys/types.h>
  54 #include <unistd.h>
  55
  56 #include <libmemcached/memcached.h>
  57
  58 #include "client_options.h"
  59 #include "utilities.h"
  60 #include "generator.h"
  61 #include "execute.h"
  62
  63 #define DEFAULT_INITIAL_LOAD 10000
  64 #define DEFAULT_EXECUTE_NUMBER 10000
  65 #define DEFAULT_CONCURRENCY 1
  66
  67 #define PROGRAM_NAME "memslap"
  68 #define PROGRAM_DESCRIPTION "Generates a load against a memcached custer of servers."
  69
  70 /* Global Thread counter */
  71 volatile unsigned int master_wakeup;
  72 pthread_mutex_t sleeper_mutex;
  73 pthread_cond_t sleep_threshhold;
  74
  75 /* Types */
  76 enum test_t {
  77   SET_TEST,
  78   GET_TEST,
  79   MGET_TEST
  80 };
  81
  82 struct thread_context_st {
  83   unsigned int key_count;
  84   pairs_st *initial_pairs;
  85   unsigned int initial_number;
  86   pairs_st *execute_pairs;
  87   unsigned int execute_number;
  88   char **keys;
  89   size_t *key_lengths;
  90   test_t test;
  91   memcached_st *memc;
  92   const memcached_st* root;
  93
  94   thread_context_st(const memcached_st* memc_arg, test_t test_arg) :
  95     key_count(0),
  96     initial_pairs(NULL),
  97     initial_number(0),
  98     execute_pairs(NULL),
  99     execute_number(0),
 100     keys(0),
 101     key_lengths(NULL),
 102     test(test_arg),
 103     memc(NULL),
 104     root(memc_arg)
 105   {
 106   }
 107
 108   void init()
 109   {
 110     memc= memcached_clone(NULL, root);
 111   }
 112
 113   ~thread_context_st()
 114   {
 115     if (execute_pairs)
 116     {
 117       pairs_free(execute_pairs);
 118     }
 119     memcached_free(memc);
 120   }
 121 };
 122
 123 struct conclusions_st {
 124   long int load_time;
 125   long int read_time;
 126   unsigned int rows_loaded;
 127   unsigned int rows_read;
 128
 129   conclusions_st() :
 130     load_time(0),
 131     read_time(0),
 132     rows_loaded(0),
 133     rows_read()
 134   { }
 135 };
 136
 137 /* Prototypes */
 138 void options_parse(int argc, char *argv[]);
 139 void conclusions_print(conclusions_st *conclusion);
 140 void scheduler(memcached_server_st *servers, conclusions_st *conclusion);
 141 pairs_st *load_create_data(memcached_st *memc, unsigned int number_of,
 142                            unsigned int *actual_loaded);
 143 void flush_all(memcached_st *memc);
 144
 145 static bool opt_binary= 0;
 146 static int opt_verbose= 0;
 147 static int opt_flush= 0;
 148 static int opt_non_blocking_io= 0;
 149 static int opt_tcp_nodelay= 0;
 150 static unsigned int opt_execute_number= 0;
 151 static unsigned int opt_createial_load= 0;
 152 static unsigned int opt_concurrency= 0;
 153 static int opt_displayflag= 0;
 154 static char *opt_servers= NULL;
 155 static int opt_udp_io= 0;
 156 test_t opt_test= SET_TEST;
 157
 158 extern "C" {
 159
 160 static void *run_task(void *p)
 161 {
 162   thread_context_st *context= (thread_context_st *)p;
 163
 164   context->init();
 165
 166   pthread_mutex_lock(&sleeper_mutex);
 167   while (master_wakeup)
 168   {
 169     pthread_cond_wait(&sleep_threshhold, &sleeper_mutex);
 170   }
 171   pthread_mutex_unlock(&sleeper_mutex);
 172
 173   /* Do Stuff */
 174   switch (context->test)
 175   {
 176   case SET_TEST:
 177     assert(context->execute_pairs);
 178     execute_set(context->memc, context->execute_pairs, context->execute_number);
 179     break;
 180
 181   case GET_TEST:
 182     execute_get(context->memc, context->initial_pairs, context->initial_number);
 183     break;
 184
 185   case MGET_TEST:
 186     execute_mget(context->memc, (const char*const*)context->keys, context->key_lengths, context->initial_number);
 187     break;
 188   }
 189
 190   delete context;
 191
 192   pthread_exit(0);
 193 }
 194
 195 }
 196
 197
 198 int main(int argc, char *argv[])
 199 {
 200   conclusions_st conclusion;
 201
 202   srandom((unsigned int)time(NULL));
 203   options_parse(argc, argv);
 204
 205   if (opt_servers == NULL)
 206   {
 207     char *temp;
 208
 209     if ((temp= getenv("MEMCACHED_SERVERS")))
 210     {
 211       opt_servers= strdup(temp);
 212     }
 213     else
 214     {
 215       fprintf(stderr, "No Servers provided\n");
 216       return EXIT_FAILURE;
 217     }
 218   }
 219
 220   memcached_server_st *servers= memcached_servers_parse(opt_servers);
 221
 222   pthread_mutex_init(&sleeper_mutex, NULL);
 223   pthread_cond_init(&sleep_threshhold, NULL);
 224
 225   scheduler(servers, &conclusion);
 226
 227   free(opt_servers);
 228
 229   (void)pthread_mutex_destroy(&sleeper_mutex);
 230   (void)pthread_cond_destroy(&sleep_threshhold);
 231   conclusions_print(&conclusion);
 232   memcached_server_list_free(servers);
 233
 234   return EXIT_SUCCESS;
 235 }
 236
 237 void scheduler(memcached_server_st *servers, conclusions_st *conclusion)
 238 {
 239   unsigned int actual_loaded= 0; /* Fix warning */
 240
 241   struct timeval start_time, end_time;
 242   pairs_st *pairs= NULL;
 243
 244   memcached_st *memc= memcached_create(NULL);
 245
 246   /* We need to set udp behavior before adding servers to the client */
 247   if (opt_udp_io)
 248   {
 249     memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_USE_UDP,
 250                            (uint64_t)opt_udp_io);
 251     for (uint32_t x= 0; x < memcached_server_list_count(servers); x++ )
 252     {
 253       servers[x].type= MEMCACHED_CONNECTION_UDP;
 254     }
 255   }
 256   memcached_server_push(memc, servers);
 257
 258   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
 259                          (uint64_t)opt_binary);
 260
 261   if (opt_flush)
 262     flush_all(memc);
 263
 264   if (opt_createial_load)
 265     pairs= load_create_data(memc, opt_createial_load, &actual_loaded);
 266
 267   char **keys= static_cast<char **>(calloc(actual_loaded, sizeof(char*)));
 268   size_t *key_lengths= static_cast<size_t *>(calloc(actual_loaded, sizeof(size_t)));
 269
 270   if (keys == NULL or key_lengths == NULL)
 271   {
 272     free(keys);
 273     free(key_lengths);
 274     keys= NULL;
 275     key_lengths= NULL;
 276   }
 277   else
 278   {
 279     for (uint32_t x= 0; x < actual_loaded; ++x)
 280     {
 281       keys[x]= pairs[x].key;
 282       key_lengths[x]= pairs[x].key_length;
 283     }
 284   }
 285
 286   /* We set this after we have loaded */
 287   {
 288     if (opt_non_blocking_io)
 289       memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_NO_BLOCK, 1);
 290
 291     if (opt_tcp_nodelay)
 292       memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_TCP_NODELAY, 1);
 293   }
 294
 295   pthread_mutex_lock(&sleeper_mutex);
 296   master_wakeup= 1;
 297   pthread_mutex_unlock(&sleeper_mutex);
 298
 299   pthread_t *threads= new  (std::nothrow) pthread_t[opt_concurrency];
 300
 301   if (not threads)
 302   {
 303     exit(EXIT_FAILURE);
 304   }
 305
 306   for (uint32_t x= 0; x < opt_concurrency; x++)
 307   {
 308     thread_context_st *context= new thread_context_st(memc, opt_test);
 309     context->test= opt_test;
 310
 311     context->initial_pairs= pairs;
 312     context->initial_number= actual_loaded;
 313     context->keys= keys;
 314     context->key_lengths= key_lengths;
 315
 316     if (opt_test == SET_TEST)
 317     {
 318       context->execute_pairs= pairs_generate(opt_execute_number, 400);
 319       context->execute_number= opt_execute_number;
 320     }
 321
 322     /* now you create the thread */
 323     if (pthread_create(threads +x, NULL, run_task, (void *)context) != 0)
 324     {
 325       fprintf(stderr,"Could not create thread\n");
 326       exit(1);
 327     }
 328   }
 329
 330   pthread_mutex_lock(&sleeper_mutex);
 331   master_wakeup= 0;
 332   pthread_mutex_unlock(&sleeper_mutex);
 333   pthread_cond_broadcast(&sleep_threshhold);
 334   gettimeofday(&start_time, NULL);
 335
 336   for (uint32_t x= 0; x < opt_concurrency; x++)
 337   {
 338     void *retval;
 339     pthread_join(threads[x], &retval);
 340   }
 341   delete [] threads;
 342
 343   gettimeofday(&end_time, NULL);
 344
 345   conclusion->load_time= timedif(end_time, start_time);
 346   conclusion->read_time= timedif(end_time, start_time);
 347   free(keys);
 348   free(key_lengths);
 349   pairs_free(pairs);
 350   memcached_free(memc);
 351 }
 352
 353 void options_parse(int argc, char *argv[])
 354 {
 355   memcached_programs_help_st help_options[]=
 356   {
 357     {0},
 358   };
 359
 360   static struct option long_options[]=
 361     {
 362       {(OPTIONSTRING)"concurrency", required_argument, NULL, OPT_SLAP_CONCURRENCY},
 363       {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 364       {(OPTIONSTRING)"quiet", no_argument, NULL, OPT_QUIET},
 365       {(OPTIONSTRING)"execute-number", required_argument, NULL, OPT_SLAP_EXECUTE_NUMBER},
 366       {(OPTIONSTRING)"flag", no_argument, &opt_displayflag, OPT_FLAG},
 367       {(OPTIONSTRING)"flush", no_argument, &opt_flush, OPT_FLUSH},
 368       {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 369       {(OPTIONSTRING)"initial-load", required_argument, NULL, OPT_SLAP_INITIAL_LOAD}, /* Number to load initially */
 370       {(OPTIONSTRING)"non-blocking", no_argument, &opt_non_blocking_io, OPT_SLAP_NON_BLOCK},
 371       {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 372       {(OPTIONSTRING)"tcp-nodelay", no_argument, &opt_tcp_nodelay, OPT_SLAP_TCP_NODELAY},
 373       {(OPTIONSTRING)"test", required_argument, NULL, OPT_SLAP_TEST},
 374       {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 375       {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 376       {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 377       {(OPTIONSTRING)"udp", no_argument, NULL, OPT_UDP},
 378       {0, 0, 0, 0},
 379     };
 380
 381   bool opt_help= false;
 382   bool opt_version= false;
 383   int option_index= 0;
 384   while (1)
 385   {
 386     int option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 387
 388     if (option_rv == -1) break;
 389
 390     switch (option_rv)
 391     {
 392     case 0:
 393       break;
 394
 395     case OPT_UDP:
 396       if (opt_test == GET_TEST)
 397       {
 398         fprintf(stderr, "You can not run a get test in UDP mode. UDP mode "
 399                   "does not currently support get ops.\n");
 400         exit(1);
 401       }
 402       opt_udp_io= 1;
 403       break;
 404
 405     case OPT_BINARY:
 406       opt_binary= true;
 407       break;
 408
 409     case OPT_VERBOSE: /* --verbose or -v */
 410       opt_verbose= OPT_VERBOSE;
 411       break;
 412
 413     case OPT_DEBUG: /* --debug or -d */
 414       opt_verbose = OPT_DEBUG;
 415       break;
 416
 417     case OPT_VERSION: /* --version or -V */
 418       opt_version= true;
 419       break;
 420
 421     case OPT_HELP: /* --help or -h */
 422       opt_help= true;
 423       break;
 424
 425     case OPT_SERVERS: /* --servers or -s */
 426       opt_servers= strdup(optarg);
 427       break;
 428
 429     case OPT_SLAP_TEST:
 430       if (strcmp(optarg, "get") == 0)
 431       {
 432         if (opt_udp_io == 1)
 433         {
 434           fprintf(stderr, "You can not run a get test in UDP mode. UDP mode "
 435                   "does not currently support get ops.\n");
 436           exit(EXIT_FAILURE);
 437         }
 438         opt_test= GET_TEST ;
 439       }
 440       else if (strcmp(optarg, "set") == 0)
 441       {
 442         opt_test= SET_TEST;
 443       }
 444       else if (strcmp(optarg, "mget") == 0)
 445       {
 446         opt_test= MGET_TEST;
 447       }
 448       else
 449       {
 450         fprintf(stderr, "Your test, %s, is not a known test\n", optarg);
 451         exit(EXIT_FAILURE);
 452       }
 453       break;
 454
 455     case OPT_SLAP_CONCURRENCY:
 456       opt_concurrency= (unsigned int)strtoul(optarg, (char **)NULL, 10);
 457       break;
 458
 459     case OPT_SLAP_EXECUTE_NUMBER:
 460       opt_execute_number= (unsigned int)strtoul(optarg, (char **)NULL, 10);
 461       break;
 462
 463     case OPT_SLAP_INITIAL_LOAD:
 464       opt_createial_load= (unsigned int)strtoul(optarg, (char **)NULL, 10);
 465       break;
 466
 467     case OPT_QUIET:
 468       close_stdio();
 469       break;
 470
 471
 472     case '?':
 473       /* getopt_long already printed an error message. */
 474       exit(EXIT_FAILURE);
 475
 476     default:
 477       abort();
 478     }
 479   }
 480
 481   if (opt_version)
 482   {
 483     version_command(PROGRAM_NAME);
 484     exit(EXIT_SUCCESS);
 485   }
 486
 487   if (opt_help)
 488   {
 489     help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 490     exit(EXIT_SUCCESS);
 491   }
 492
 493   if ((opt_test == GET_TEST or opt_test == MGET_TEST) and opt_createial_load == 0)
 494     opt_createial_load= DEFAULT_INITIAL_LOAD;
 495
 496   if (opt_execute_number == 0)
 497     opt_execute_number= DEFAULT_EXECUTE_NUMBER;
 498
 499   if (opt_concurrency == 0)
 500     opt_concurrency= DEFAULT_CONCURRENCY;
 501 }
 502
 503 void conclusions_print(conclusions_st *conclusion)
 504 {
 505   printf("\tThreads connecting to servers %u\n", opt_concurrency);
 506 #ifdef NOT_FINISHED
 507   printf("\tLoaded %u rows\n", conclusion->rows_loaded);
 508   printf("\tRead %u rows\n", conclusion->rows_read);
 509 #endif
 510   if (opt_test == SET_TEST)
 511     printf("\tTook %ld.%03ld seconds to load data\n", conclusion->load_time / 1000,
 512            conclusion->load_time % 1000);
 513   else
 514     printf("\tTook %ld.%03ld seconds to read data\n", conclusion->read_time / 1000,
 515            conclusion->read_time % 1000);
 516 }
 517
 518 void flush_all(memcached_st *memc)
 519 {
 520   memcached_flush(memc, 0);
 521 }
 522
 523 pairs_st *load_create_data(memcached_st *memc, unsigned int number_of,
 524                            unsigned int *actual_loaded)
 525 {
 526   memcached_st *memc_clone= memcached_clone(NULL, memc);
 527   /* We always used non-blocking IO for load since it is faster */
 528   memcached_behavior_set(memc_clone, MEMCACHED_BEHAVIOR_NO_BLOCK, 0);
 529
 530   pairs_st *pairs= pairs_generate(number_of, 400);
 531   *actual_loaded= execute_set(memc_clone, pairs, number_of);
 532
 533   memcached_free(memc_clone);
 534
 535   return pairs;
 536 }