git.m6w6.name Git - awesomized/libmemcached/blob - src/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 <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 unsigned int thread_counter;
  30 pthread_mutex_t counter_mutex;
  31 pthread_cond_t count_threshhold;
  32 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_server_st *servers;
  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_server_st *servers, unsigned int number_of,
  68                             unsigned int *actual_loaded);
  69 void flush_all(memcached_server_st *servers);
  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       exit(1);
 100   }
 101
 102   servers= memcached_servers_parse(opt_servers);
 103
 104   pthread_mutex_init(&counter_mutex, NULL);
 105   pthread_cond_init(&count_threshhold, NULL);
 106   pthread_mutex_init(&sleeper_mutex, NULL);
 107   pthread_cond_init(&sleep_threshhold, NULL);
 108
 109   scheduler(servers, &conclusion);
 110
 111   free(opt_servers);
 112
 113   (void)pthread_mutex_destroy(&counter_mutex);
 114   (void)pthread_cond_destroy(&count_threshhold);
 115   (void)pthread_mutex_destroy(&sleeper_mutex);
 116   (void)pthread_cond_destroy(&sleep_threshhold);
 117   conclusions_print(&conclusion);
 118   memcached_server_list_free(servers);
 119
 120   return 0;
 121 }
 122
 123 void scheduler(memcached_server_st *servers, conclusions_st *conclusion)
 124 {
 125   unsigned int x;
 126   unsigned int actual_loaded;
 127
 128   struct timeval start_time, end_time;
 129   pthread_t mainthread;            /* Thread descriptor */
 130   pthread_attr_t attr;          /* Thread attributes */
 131   pairs_st *pairs= NULL;
 132
 133   pthread_attr_init(&attr);
 134   pthread_attr_setdetachstate(&attr,
 135                               PTHREAD_CREATE_DETACHED);
 136
 137   if (opt_flush)
 138     flush_all(servers);
 139   if (opt_createial_load)
 140     pairs= load_create_data(servers, opt_createial_load, &actual_loaded);
 141
 142   pthread_mutex_lock(&counter_mutex);
 143   thread_counter= 0;
 144
 145   pthread_mutex_lock(&sleeper_mutex);
 146   master_wakeup= 1;
 147   pthread_mutex_unlock(&sleeper_mutex);
 148
 149   for (x= 0; x < opt_concurrency; x++)
 150   {
 151     thread_context_st *context;
 152     context= (thread_context_st *)malloc(sizeof(thread_context_st));
 153     memset(context, 0, sizeof(thread_context_st));
 154
 155     context->servers= servers;
 156     context->test= opt_test;
 157
 158     context->initial_pairs= pairs;
 159     context->initial_number= actual_loaded;
 160
 161     if (opt_test == SET_TEST)
 162     {
 163       context->execute_pairs= pairs_generate(opt_execute_number);
 164       context->execute_number= opt_execute_number;
 165     }
 166
 167     /* now you create the thread */
 168     if (pthread_create(&mainthread, &attr, run_task,
 169                        (void *)context) != 0)
 170     {
 171       fprintf(stderr,"Could not create thread\n");
 172       exit(1);
 173     }
 174     thread_counter++;
 175   }
 176
 177   pthread_mutex_unlock(&counter_mutex);
 178   pthread_attr_destroy(&attr);
 179
 180   pthread_mutex_lock(&sleeper_mutex);
 181   master_wakeup= 0;
 182   pthread_mutex_unlock(&sleeper_mutex);
 183   pthread_cond_broadcast(&sleep_threshhold);
 184
 185   gettimeofday(&start_time, NULL);
 186   /*
 187     We loop until we know that all children have cleaned up.
 188   */
 189   pthread_mutex_lock(&counter_mutex);
 190   while (thread_counter)
 191   {
 192     struct timespec abstime;
 193
 194     memset(&abstime, 0, sizeof(struct timespec));
 195     abstime.tv_sec= 1;
 196
 197     pthread_cond_timedwait(&count_threshhold, &counter_mutex, &abstime);
 198   }
 199   pthread_mutex_unlock(&counter_mutex);
 200
 201   gettimeofday(&end_time, NULL);
 202
 203   conclusion->load_time= timedif(end_time, start_time);
 204   conclusion->read_time= timedif(end_time, start_time);
 205   pairs_free(pairs);
 206 }
 207
 208 void options_parse(int argc, char *argv[])
 209 {
 210   memcached_programs_help_st help_options[]=
 211   {
 212     {0},
 213   };
 214
 215   static struct option long_options[]=
 216     {
 217       {"concurrency", required_argument, NULL, OPT_SLAP_CONCURRENCY},
 218       {"debug", no_argument, &opt_verbose, OPT_DEBUG},
 219       {"execute-number", required_argument, NULL, OPT_SLAP_EXECUTE_NUMBER},
 220       {"flag", no_argument, &opt_displayflag, OPT_FLAG},
 221       {"flush", no_argument, &opt_flush, OPT_FLUSH},
 222       {"help", no_argument, NULL, OPT_HELP},
 223       {"initial-load", required_argument, NULL, OPT_SLAP_INITIAL_LOAD}, /* Number to load initially */
 224       {"non-blocking", no_argument, &opt_non_blocking_io, OPT_SLAP_NON_BLOCK},
 225       {"servers", required_argument, NULL, OPT_SERVERS},
 226       {"tcp-nodelay", no_argument, &opt_tcp_nodelay, OPT_SLAP_TCP_NODELAY},
 227       {"test", required_argument, NULL, OPT_SLAP_TEST},
 228       {"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 229       {"version", no_argument, NULL, OPT_VERSION},
 230       {0, 0, 0, 0},
 231     };
 232
 233   int option_index= 0;
 234   int option_rv;
 235
 236   while (1)
 237   {
 238     option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 239     if (option_rv == -1) break;
 240     switch (option_rv)
 241     {
 242     case 0:
 243       break;
 244     case OPT_VERBOSE: /* --verbose or -v */
 245       opt_verbose = OPT_VERBOSE;
 246       break;
 247     case OPT_DEBUG: /* --debug or -d */
 248       opt_verbose = OPT_DEBUG;
 249       break;
 250     case OPT_VERSION: /* --version or -V */
 251       version_command(PROGRAM_NAME);
 252       break;
 253     case OPT_HELP: /* --help or -h */
 254       help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 255       break;
 256     case OPT_SERVERS: /* --servers or -s */
 257       opt_servers= strdup(optarg);
 258       break;
 259     case OPT_SLAP_TEST:
 260       if (!strcmp(optarg, "get"))
 261         opt_test= GET_TEST ;
 262       else if (!strcmp(optarg, "set"))
 263         opt_test= SET_TEST;
 264       else
 265       {
 266         fprintf(stderr, "Your test, %s, is not a known test\n", optarg);
 267         exit(1);
 268       }
 269       break;
 270     case OPT_SLAP_CONCURRENCY:
 271       opt_concurrency= strtol(optarg, (char **)NULL, 10);
 272     case OPT_SLAP_EXECUTE_NUMBER:
 273       opt_execute_number= strtol(optarg, (char **)NULL, 10);
 274       break;
 275     case OPT_SLAP_INITIAL_LOAD:
 276       opt_createial_load= strtol(optarg, (char **)NULL, 10);
 277       break;
 278     case '?':
 279       /* getopt_long already printed an error message. */
 280       exit(1);
 281     default:
 282       abort();
 283     }
 284   }
 285
 286   if (opt_test == GET_TEST && opt_createial_load == 0)
 287     opt_createial_load= DEFAULT_INITIAL_LOAD;
 288
 289   if (opt_execute_number == 0)
 290     opt_execute_number= DEFAULT_EXECUTE_NUMBER;
 291
 292   if (opt_concurrency == 0)
 293     opt_concurrency= DEFAULT_CONCURRENCY;
 294 }
 295
 296 void conclusions_print(conclusions_st *conclusion)
 297 {
 298   printf("\tThreads connecting to servers %u\n", opt_concurrency);
 299 #ifdef NOT_FINISHED
 300   printf("\tLoaded %u rows\n", conclusion->rows_loaded);
 301   printf("\tRead %u rows\n", conclusion->rows_read);
 302 #endif
 303   if (opt_test == SET_TEST)
 304     printf("\tTook %ld.%03ld seconds to load data\n", conclusion->load_time / 1000,
 305            conclusion->load_time % 1000);
 306   else
 307     printf("\tTook %ld.%03ld seconds to read data\n", conclusion->read_time / 1000,
 308            conclusion->read_time % 1000);
 309 }
 310
 311 void *run_task(void *p)
 312 {
 313   thread_context_st *context= (thread_context_st *)p;
 314   memcached_st *memc;
 315   unsigned int value= 1;
 316
 317   memc= memcached_create(NULL);
 318   WATCHPOINT_ASSERT(memc);
 319   if (opt_non_blocking_io)
 320     memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_NO_BLOCK, &value);
 321   if (opt_tcp_nodelay)
 322     memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_TCP_NODELAY, &value);
 323
 324   memcached_server_push(memc, context->servers);
 325
 326   pthread_mutex_lock(&sleeper_mutex);
 327   while (master_wakeup)
 328   {
 329     pthread_cond_wait(&sleep_threshhold, &sleeper_mutex);
 330   }
 331   pthread_mutex_unlock(&sleeper_mutex);
 332
 333   /* Do Stuff */
 334   switch (context->test)
 335   {
 336   case SET_TEST:
 337     execute_set(memc, context->execute_pairs, context->execute_number);
 338     break;
 339   case GET_TEST:
 340     execute_get(memc, context->initial_pairs, context->initial_number);
 341     break;
 342   }
 343
 344   memcached_free(memc);
 345
 346   if (context->execute_pairs)
 347     pairs_free(context->execute_pairs);
 348   free(context);
 349
 350   pthread_mutex_lock(&counter_mutex);
 351   thread_counter--;
 352   pthread_cond_signal(&count_threshhold);
 353   pthread_mutex_unlock(&counter_mutex);
 354
 355   return NULL;
 356 }
 357
 358 void flush_all(memcached_server_st *servers)
 359 {
 360   memcached_st *memc;
 361
 362   memc= memcached_create(NULL);
 363
 364   memcached_server_push(memc, servers);
 365
 366   memcached_flush(memc, 0);
 367
 368   memcached_free(memc);
 369 }
 370
 371 pairs_st *load_create_data(memcached_server_st *servers, unsigned int number_of,
 372                             unsigned int *actual_loaded)
 373 {
 374   memcached_st *memc;
 375   pairs_st *pairs;
 376
 377   memc= memcached_create(NULL);
 378   /* We always used non-blocking IO for load since it is faster */
 379   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_NO_BLOCK, NULL );
 380   memcached_server_push(memc, servers);
 381
 382   pairs= pairs_generate(number_of);
 383   *actual_loaded= execute_set(memc, pairs, number_of);
 384
 385   memcached_free(memc);
 386
 387   return pairs;
 388 }