git.m6w6.name Git - awesomized/libmemcached/blob - clients/memslap.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <sys/types.h>
   5 #include <sys/stat.h>
   6 #include <sys/types.h>
   7 #include <sys/mman.h>
   8 #include <fcntl.h>
   9 #include <assert.h>
  10 #include <sys/time.h>
  11 #include <getopt.h>
  12 #include <pthread.h>
  13
  14 #include <libmemcached/memcached.h>
  15
  16 #include "client_options.h"
  17 #include "utilities.h"
  18 #include "generator.h"
  19 #include "execute.h"
  20
  21 #define DEFAULT_INITIAL_LOAD 10000
  22 #define DEFAULT_EXECUTE_NUMBER 10000
  23 #define DEFAULT_CONCURRENCY 1
  24
  25 #define PROGRAM_NAME "memslap"
  26 #define PROGRAM_DESCRIPTION "Generates a load against a memcached custer of servers."
  27
  28 /* Global Thread counter */
  29 volatile unsigned int thread_counter;
  30 pthread_mutex_t counter_mutex;
  31 pthread_cond_t count_threshhold;
  32 volatile unsigned int master_wakeup;
  33 pthread_mutex_t sleeper_mutex;
  34 pthread_cond_t sleep_threshhold;
  35
  36 void *run_task(void *p);
  37
  38 /* Types */
  39 typedef struct conclusions_st conclusions_st;
  40 typedef struct thread_context_st thread_context_st;
  41 typedef enum {
  42   SET_TEST,
  43   GET_TEST,
  44 } test_type;
  45
  46 struct thread_context_st {
  47   unsigned int key_count;
  48   pairs_st *initial_pairs;
  49   unsigned int initial_number;
  50   pairs_st *execute_pairs;
  51   unsigned int execute_number;
  52   test_type test;
  53   memcached_st *memc;
  54 };
  55
  56 struct conclusions_st {
  57   long int load_time;
  58   long int read_time;
  59   unsigned int rows_loaded;
  60   unsigned int rows_read;
  61 };
  62
  63 /* Prototypes */
  64 void options_parse(int argc, char *argv[]);
  65 void conclusions_print(conclusions_st *conclusion);
  66 void scheduler(memcached_server_st *servers, conclusions_st *conclusion);
  67 pairs_st *load_create_data(memcached_st *memc, unsigned int number_of,
  68                            unsigned int *actual_loaded);
  69 void flush_all(memcached_st *memc);
  70
  71 static int opt_verbose= 0;
  72 static int opt_flush= 0;
  73 static int opt_non_blocking_io= 0;
  74 static int opt_tcp_nodelay= 0;
  75 static unsigned int opt_execute_number= 0;
  76 static unsigned int opt_createial_load= 0;
  77 static unsigned int opt_concurrency= 0;
  78 static int opt_displayflag= 0;
  79 static char *opt_servers= NULL;
  80 test_type opt_test= SET_TEST;
  81
  82 int main(int argc, char *argv[])
  83 {
  84   conclusions_st conclusion;
  85   memcached_server_st *servers;
  86
  87   memset(&conclusion, 0, sizeof(conclusions_st));
  88
  89   srandom(time(NULL));
  90   options_parse(argc, argv);
  91
  92   if (!opt_servers)
  93   {
  94     char *temp;
  95
  96     if ((temp= getenv("MEMCACHED_SERVERS")))
  97       opt_servers= strdup(temp);
  98     else
  99     {
 100       fprintf(stderr, "No Servers provided\n");
 101       exit(1);
 102     }
 103   }
 104
 105   servers= memcached_servers_parse(opt_servers);
 106
 107   pthread_mutex_init(&counter_mutex, NULL);
 108   pthread_cond_init(&count_threshhold, NULL);
 109   pthread_mutex_init(&sleeper_mutex, NULL);
 110   pthread_cond_init(&sleep_threshhold, NULL);
 111
 112   scheduler(servers, &conclusion);
 113
 114   free(opt_servers);
 115
 116   (void)pthread_mutex_destroy(&counter_mutex);
 117   (void)pthread_cond_destroy(&count_threshhold);
 118   (void)pthread_mutex_destroy(&sleeper_mutex);
 119   (void)pthread_cond_destroy(&sleep_threshhold);
 120   conclusions_print(&conclusion);
 121   memcached_server_list_free(servers);
 122
 123   return 0;
 124 }
 125
 126 void scheduler(memcached_server_st *servers, conclusions_st *conclusion)
 127 {
 128   unsigned int x;
 129   unsigned int actual_loaded= 0; /* Fix warning */
 130   memcached_st *memc;
 131
 132   struct timeval start_time, end_time;
 133   pthread_t mainthread;            /* Thread descriptor */
 134   pthread_attr_t attr;          /* Thread attributes */
 135   pairs_st *pairs= NULL;
 136
 137   pthread_attr_init(&attr);
 138   pthread_attr_setdetachstate(&attr,
 139                               PTHREAD_CREATE_DETACHED);
 140
 141   memc= memcached_create(NULL);
 142   memcached_server_push(memc, servers);
 143
 144   if (opt_flush)
 145     flush_all(memc);
 146   if (opt_createial_load)
 147     pairs= load_create_data(memc, opt_createial_load, &actual_loaded);
 148
 149   /* We set this after we have loaded */
 150   {
 151     if (opt_non_blocking_io)
 152       memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_NO_BLOCK, 1);
 153     if (opt_tcp_nodelay)
 154       memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_TCP_NODELAY, 1);
 155   }
 156
 157
 158   pthread_mutex_lock(&counter_mutex);
 159   thread_counter= 0;
 160
 161   pthread_mutex_lock(&sleeper_mutex);
 162   master_wakeup= 1;
 163   pthread_mutex_unlock(&sleeper_mutex);
 164
 165   for (x= 0; x < opt_concurrency; x++)
 166   {
 167     thread_context_st *context;
 168     context= (thread_context_st *)malloc(sizeof(thread_context_st));
 169     memset(context, 0, sizeof(thread_context_st));
 170
 171     context->memc= memcached_clone(NULL, memc);
 172     context->test= opt_test;
 173
 174     context->initial_pairs= pairs;
 175     context->initial_number= actual_loaded;
 176
 177     if (opt_test == SET_TEST)
 178     {
 179       context->execute_pairs= pairs_generate(opt_execute_number, 400);
 180       context->execute_number= opt_execute_number;
 181     }
 182
 183     /* now you create the thread */
 184     if (pthread_create(&mainthread, &attr, run_task,
 185                        (void *)context) != 0)
 186     {
 187       fprintf(stderr,"Could not create thread\n");
 188       exit(1);
 189     }
 190     thread_counter++;
 191   }
 192
 193   pthread_mutex_unlock(&counter_mutex);
 194   pthread_attr_destroy(&attr);
 195
 196   pthread_mutex_lock(&sleeper_mutex);
 197   master_wakeup= 0;
 198   pthread_mutex_unlock(&sleeper_mutex);
 199   pthread_cond_broadcast(&sleep_threshhold);
 200
 201   gettimeofday(&start_time, NULL);
 202   /*
 203     We loop until we know that all children have cleaned up.
 204   */
 205   pthread_mutex_lock(&counter_mutex);
 206   while (thread_counter)
 207   {
 208     struct timespec abstime;
 209
 210     memset(&abstime, 0, sizeof(struct timespec));
 211     abstime.tv_sec= 1;
 212
 213     pthread_cond_timedwait(&count_threshhold, &counter_mutex, &abstime);
 214   }
 215   pthread_mutex_unlock(&counter_mutex);
 216
 217   gettimeofday(&end_time, NULL);
 218
 219   conclusion->load_time= timedif(end_time, start_time);
 220   conclusion->read_time= timedif(end_time, start_time);
 221   pairs_free(pairs);
 222 }
 223
 224 void options_parse(int argc, char *argv[])
 225 {
 226   memcached_programs_help_st help_options[]=
 227   {
 228     {0},
 229   };
 230
 231   static struct option long_options[]=
 232     {
 233       {"concurrency", required_argument, NULL, OPT_SLAP_CONCURRENCY},
 234       {"debug", no_argument, &opt_verbose, OPT_DEBUG},
 235       {"execute-number", required_argument, NULL, OPT_SLAP_EXECUTE_NUMBER},
 236       {"flag", no_argument, &opt_displayflag, OPT_FLAG},
 237       {"flush", no_argument, &opt_flush, OPT_FLUSH},
 238       {"help", no_argument, NULL, OPT_HELP},
 239       {"initial-load", required_argument, NULL, OPT_SLAP_INITIAL_LOAD}, /* Number to load initially */
 240       {"non-blocking", no_argument, &opt_non_blocking_io, OPT_SLAP_NON_BLOCK},
 241       {"servers", required_argument, NULL, OPT_SERVERS},
 242       {"tcp-nodelay", no_argument, &opt_tcp_nodelay, OPT_SLAP_TCP_NODELAY},
 243       {"test", required_argument, NULL, OPT_SLAP_TEST},
 244       {"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 245       {"version", no_argument, NULL, OPT_VERSION},
 246       {0, 0, 0, 0},
 247     };
 248
 249   int option_index= 0;
 250   int option_rv;
 251
 252   while (1)
 253   {
 254     option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 255     if (option_rv == -1) break;
 256     switch (option_rv)
 257     {
 258     case 0:
 259       break;
 260     case OPT_VERBOSE: /* --verbose or -v */
 261       opt_verbose = OPT_VERBOSE;
 262       break;
 263     case OPT_DEBUG: /* --debug or -d */
 264       opt_verbose = OPT_DEBUG;
 265       break;
 266     case OPT_VERSION: /* --version or -V */
 267       version_command(PROGRAM_NAME);
 268       break;
 269     case OPT_HELP: /* --help or -h */
 270       help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 271       break;
 272     case OPT_SERVERS: /* --servers or -s */
 273       opt_servers= strdup(optarg);
 274       break;
 275     case OPT_SLAP_TEST:
 276       if (!strcmp(optarg, "get"))
 277         opt_test= GET_TEST ;
 278       else if (!strcmp(optarg, "set"))
 279         opt_test= SET_TEST;
 280       else
 281       {
 282         fprintf(stderr, "Your test, %s, is not a known test\n", optarg);
 283         exit(1);
 284       }
 285       break;
 286     case OPT_SLAP_CONCURRENCY:
 287       opt_concurrency= strtol(optarg, (char **)NULL, 10);
 288     case OPT_SLAP_EXECUTE_NUMBER:
 289       opt_execute_number= strtol(optarg, (char **)NULL, 10);
 290       break;
 291     case OPT_SLAP_INITIAL_LOAD:
 292       opt_createial_load= strtol(optarg, (char **)NULL, 10);
 293       break;
 294     case '?':
 295       /* getopt_long already printed an error message. */
 296       exit(1);
 297     default:
 298       abort();
 299     }
 300   }
 301
 302   if (opt_test == GET_TEST && opt_createial_load == 0)
 303     opt_createial_load= DEFAULT_INITIAL_LOAD;
 304
 305   if (opt_execute_number == 0)
 306     opt_execute_number= DEFAULT_EXECUTE_NUMBER;
 307
 308   if (opt_concurrency == 0)
 309     opt_concurrency= DEFAULT_CONCURRENCY;
 310 }
 311
 312 void conclusions_print(conclusions_st *conclusion)
 313 {
 314   printf("\tThreads connecting to servers %u\n", opt_concurrency);
 315 #ifdef NOT_FINISHED
 316   printf("\tLoaded %u rows\n", conclusion->rows_loaded);
 317   printf("\tRead %u rows\n", conclusion->rows_read);
 318 #endif
 319   if (opt_test == SET_TEST)
 320     printf("\tTook %ld.%03ld seconds to load data\n", conclusion->load_time / 1000,
 321            conclusion->load_time % 1000);
 322   else
 323     printf("\tTook %ld.%03ld seconds to read data\n", conclusion->read_time / 1000,
 324            conclusion->read_time % 1000);
 325 }
 326
 327 void *run_task(void *p)
 328 {
 329   thread_context_st *context= (thread_context_st *)p;
 330   memcached_st *memc;
 331
 332   memc= context->memc;
 333
 334   pthread_mutex_lock(&sleeper_mutex);
 335   while (master_wakeup)
 336   {
 337     pthread_cond_wait(&sleep_threshhold, &sleeper_mutex);
 338   }
 339   pthread_mutex_unlock(&sleeper_mutex);
 340
 341   /* Do Stuff */
 342   switch (context->test)
 343   {
 344   case SET_TEST:
 345     execute_set(memc, context->execute_pairs, context->execute_number);
 346     break;
 347   case GET_TEST:
 348     execute_get(memc, context->initial_pairs, context->initial_number);
 349     break;
 350   }
 351
 352   memcached_free(memc);
 353
 354   if (context->execute_pairs)
 355     pairs_free(context->execute_pairs);
 356   free(context);
 357
 358   pthread_mutex_lock(&counter_mutex);
 359   thread_counter--;
 360   pthread_cond_signal(&count_threshhold);
 361   pthread_mutex_unlock(&counter_mutex);
 362
 363   return NULL;
 364 }
 365
 366 void flush_all(memcached_st *memc)
 367 {
 368   memcached_flush(memc, 0);
 369 }
 370
 371 pairs_st *load_create_data(memcached_st *memc, unsigned int number_of,
 372                            unsigned int *actual_loaded)
 373 {
 374   memcached_st *clone;
 375   pairs_st *pairs;
 376
 377   clone= memcached_clone(NULL, memc);
 378   /* We always used non-blocking IO for load since it is faster */
 379   memcached_behavior_set(clone, MEMCACHED_BEHAVIOR_NO_BLOCK, 0);
 380
 381   pairs= pairs_generate(number_of, 400);
 382   *actual_loaded= execute_set(clone, pairs, number_of);
 383
 384   memcached_free(clone);
 385
 386   return pairs;
 387 }