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 <sys/time.h>
  10 #include <getopt.h>
  11 #include <pthread.h>
  12
  13 #include <libmemcached/memcached.h>
  14
  15 #include "client_options.h"
  16 #include "utilities.h"
  17 #include "generator.h"
  18 #include "execute.h"
  19
  20 #define DEFAULT_INITIAL_LOAD 10000
  21 #define DEFAULT_EXECUTE_NUMBER 10000
  22 #define DEFAULT_CONCURRENCY 1
  23
  24 #define PROGRAM_NAME "memslap"
  25 #define PROGRAM_DESCRIPTION "Generates a load against a memcached custer of servers."
  26
  27 /* Global Thread counter */
  28 volatile unsigned int thread_counter;
  29 pthread_mutex_t counter_mutex;
  30 pthread_cond_t count_threshhold;
  31 volatile unsigned int master_wakeup;
  32 pthread_mutex_t sleeper_mutex;
  33 pthread_cond_t sleep_threshhold;
  34
  35 void *run_task(void *p);
  36
  37 /* Types */
  38 typedef struct conclusions_st conclusions_st;
  39 typedef struct thread_context_st thread_context_st;
  40 typedef enum {
  41   SET_TEST,
  42   GET_TEST,
  43 } test_type;
  44
  45 struct thread_context_st {
  46   unsigned int key_count;
  47   pairs_st *initial_pairs;
  48   unsigned int initial_number;
  49   pairs_st *execute_pairs;
  50   unsigned int execute_number;
  51   test_type test;
  52   memcached_st *memc;
  53 };
  54
  55 struct conclusions_st {
  56   long int load_time;
  57   long int read_time;
  58   unsigned int rows_loaded;
  59   unsigned int rows_read;
  60 };
  61
  62 /* Prototypes */
  63 void options_parse(int argc, char *argv[]);
  64 void conclusions_print(conclusions_st *conclusion);
  65 void scheduler(memcached_server_st *servers, conclusions_st *conclusion);
  66 pairs_st *load_create_data(memcached_st *memc, unsigned int number_of,
  67                            unsigned int *actual_loaded);
  68 void flush_all(memcached_st *memc);
  69
  70 static int opt_verbose= 0;
  71 static int opt_flush= 0;
  72 static int opt_non_blocking_io= 0;
  73 static int opt_tcp_nodelay= 0;
  74 static unsigned int opt_execute_number= 0;
  75 static unsigned int opt_createial_load= 0;
  76 static unsigned int opt_concurrency= 0;
  77 static int opt_displayflag= 0;
  78 static char *opt_servers= NULL;
  79 test_type opt_test= SET_TEST;
  80
  81 int main(int argc, char *argv[])
  82 {
  83   conclusions_st conclusion;
  84   memcached_server_st *servers;
  85
  86   memset(&conclusion, 0, sizeof(conclusions_st));
  87
  88   srandom(time(NULL));
  89   options_parse(argc, argv);
  90
  91   if (!opt_servers)
  92   {
  93     char *temp;
  94
  95     if ((temp= getenv("MEMCACHED_SERVERS")))
  96       opt_servers= strdup(temp);
  97     else
  98     {
  99       fprintf(stderr, "No Servers provided\n");
 100       exit(1);
 101     }
 102   }
 103
 104   servers= memcached_servers_parse(opt_servers);
 105
 106   pthread_mutex_init(&counter_mutex, NULL);
 107   pthread_cond_init(&count_threshhold, NULL);
 108   pthread_mutex_init(&sleeper_mutex, NULL);
 109   pthread_cond_init(&sleep_threshhold, NULL);
 110
 111   scheduler(servers, &conclusion);
 112
 113   free(opt_servers);
 114
 115   (void)pthread_mutex_destroy(&counter_mutex);
 116   (void)pthread_cond_destroy(&count_threshhold);
 117   (void)pthread_mutex_destroy(&sleeper_mutex);
 118   (void)pthread_cond_destroy(&sleep_threshhold);
 119   conclusions_print(&conclusion);
 120   memcached_server_list_free(servers);
 121
 122   return 0;
 123 }
 124
 125 void scheduler(memcached_server_st *servers, conclusions_st *conclusion)
 126 {
 127   unsigned int x;
 128   unsigned int actual_loaded= 0; /* Fix warning */
 129   memcached_st *memc;
 130
 131   struct timeval start_time, end_time;
 132   pthread_t mainthread;            /* Thread descriptor */
 133   pthread_attr_t attr;          /* Thread attributes */
 134   pairs_st *pairs= NULL;
 135
 136   pthread_attr_init(&attr);
 137   pthread_attr_setdetachstate(&attr,
 138                               PTHREAD_CREATE_DETACHED);
 139
 140   memc= memcached_create(NULL);
 141   memcached_server_push(memc, servers);
 142
 143   if (opt_flush)
 144     flush_all(memc);
 145   if (opt_createial_load)
 146     pairs= load_create_data(memc, opt_createial_load, &actual_loaded);
 147
 148   /* We set this after we have loaded */
 149   {
 150     if (opt_non_blocking_io)
 151       memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_NO_BLOCK, 1);
 152     if (opt_tcp_nodelay)
 153       memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_TCP_NODELAY, 1);
 154   }
 155
 156
 157   pthread_mutex_lock(&counter_mutex);
 158   thread_counter= 0;
 159
 160   pthread_mutex_lock(&sleeper_mutex);
 161   master_wakeup= 1;
 162   pthread_mutex_unlock(&sleeper_mutex);
 163
 164   for (x= 0; x < opt_concurrency; x++)
 165   {
 166     thread_context_st *context;
 167     context= (thread_context_st *)malloc(sizeof(thread_context_st));
 168     memset(context, 0, sizeof(thread_context_st));
 169
 170     context->memc= memcached_clone(NULL, memc);
 171     context->test= opt_test;
 172
 173     context->initial_pairs= pairs;
 174     context->initial_number= actual_loaded;
 175
 176     if (opt_test == SET_TEST)
 177     {
 178       context->execute_pairs= pairs_generate(opt_execute_number, 400);
 179       context->execute_number= opt_execute_number;
 180     }
 181
 182     /* now you create the thread */
 183     if (pthread_create(&mainthread, &attr, run_task,
 184                        (void *)context) != 0)
 185     {
 186       fprintf(stderr,"Could not create thread\n");
 187       exit(1);
 188     }
 189     thread_counter++;
 190   }
 191
 192   pthread_mutex_unlock(&counter_mutex);
 193   pthread_attr_destroy(&attr);
 194
 195   pthread_mutex_lock(&sleeper_mutex);
 196   master_wakeup= 0;
 197   pthread_mutex_unlock(&sleeper_mutex);
 198   pthread_cond_broadcast(&sleep_threshhold);
 199
 200   gettimeofday(&start_time, NULL);
 201   /*
 202     We loop until we know that all children have cleaned up.
 203   */
 204   pthread_mutex_lock(&counter_mutex);
 205   while (thread_counter)
 206   {
 207     struct timespec abstime;
 208
 209     memset(&abstime, 0, sizeof(struct timespec));
 210     abstime.tv_sec= 1;
 211
 212     pthread_cond_timedwait(&count_threshhold, &counter_mutex, &abstime);
 213   }
 214   pthread_mutex_unlock(&counter_mutex);
 215
 216   gettimeofday(&end_time, NULL);
 217
 218   conclusion->load_time= timedif(end_time, start_time);
 219   conclusion->read_time= timedif(end_time, start_time);
 220   pairs_free(pairs);
 221   memcached_free(memc);
 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
 357   free(context);
 358
 359   pthread_mutex_lock(&counter_mutex);
 360   thread_counter--;
 361   pthread_cond_signal(&count_threshhold);
 362   pthread_mutex_unlock(&counter_mutex);
 363
 364   return NULL;
 365 }
 366
 367 void flush_all(memcached_st *memc)
 368 {
 369   memcached_flush(memc, 0);
 370 }
 371
 372 pairs_st *load_create_data(memcached_st *memc, unsigned int number_of,
 373                            unsigned int *actual_loaded)
 374 {
 375   memcached_st *clone;
 376   pairs_st *pairs;
 377
 378   clone= memcached_clone(NULL, memc);
 379   /* We always used non-blocking IO for load since it is faster */
 380   memcached_behavior_set(clone, MEMCACHED_BEHAVIOR_NO_BLOCK, 0);
 381
 382   pairs= pairs_generate(number_of, 400);
 383   *actual_loaded= execute_set(clone, pairs, number_of);
 384
 385   memcached_free(clone);
 386
 387   return pairs;
 388 }