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

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