1 /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
5 * Copyright (C) 2011 Data Differential, http://datadifferential.com/
6 * Copyright (C) 2006-2009 Brian Aker All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are
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13 * notice, this list of conditions and the following disclaimer.
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
20 * * The names of its contributors may not be used to endorse or
21 * promote products derived from this software without specific prior
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
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34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
52 #include <sys/types.h>
53 #include <sys/types.h>
55 #include <libmemcached/memcached.h>
57 #include "client_options.h"
58 #include "utilities.h"
59 #include "generator.h"
62 #define DEFAULT_INITIAL_LOAD 10000
63 #define DEFAULT_EXECUTE_NUMBER 10000
64 #define DEFAULT_CONCURRENCY 1
66 #define PROGRAM_NAME "memslap"
67 #define PROGRAM_DESCRIPTION "Generates a load against a memcached custer of servers."
69 /* Global Thread counter */
70 volatile unsigned int master_wakeup
;
71 pthread_mutex_t sleeper_mutex
;
72 pthread_cond_t sleep_threshhold
;
81 struct thread_context_st
{
82 unsigned int key_count
;
83 pairs_st
*initial_pairs
;
84 unsigned int initial_number
;
85 pairs_st
*execute_pairs
;
86 unsigned int execute_number
;
91 const memcached_st
* root
;
93 thread_context_st(const memcached_st
* memc_arg
, test_t test_arg
) :
109 memc
= memcached_clone(NULL
, root
);
116 pairs_free(execute_pairs
);
118 memcached_free(memc
);
122 struct conclusions_st
{
125 unsigned int rows_loaded
;
126 unsigned int rows_read
;
137 void options_parse(int argc
, char *argv
[]);
138 void conclusions_print(conclusions_st
*conclusion
);
139 void scheduler(memcached_server_st
*servers
, conclusions_st
*conclusion
);
140 pairs_st
*load_create_data(memcached_st
*memc
, unsigned int number_of
,
141 unsigned int *actual_loaded
);
142 void flush_all(memcached_st
*memc
);
144 static int opt_binary
= 0;
145 static int opt_verbose
= 0;
146 static int opt_flush
= 0;
147 static int opt_non_blocking_io
= 0;
148 static int opt_tcp_nodelay
= 0;
149 static unsigned int opt_execute_number
= 0;
150 static unsigned int opt_createial_load
= 0;
151 static unsigned int opt_concurrency
= 0;
152 static int opt_displayflag
= 0;
153 static char *opt_servers
= NULL
;
154 static int opt_udp_io
= 0;
155 test_t opt_test
= SET_TEST
;
159 static void *run_task(void *p
)
161 thread_context_st
*context
= (thread_context_st
*)p
;
165 pthread_mutex_lock(&sleeper_mutex
);
166 while (master_wakeup
)
168 pthread_cond_wait(&sleep_threshhold
, &sleeper_mutex
);
170 pthread_mutex_unlock(&sleeper_mutex
);
173 switch (context
->test
)
176 assert(context
->execute_pairs
);
177 execute_set(context
->memc
, context
->execute_pairs
, context
->execute_number
);
181 execute_get(context
->memc
, context
->initial_pairs
, context
->initial_number
);
185 execute_mget(context
->memc
, (const char*const*)context
->keys
, context
->key_lengths
, context
->initial_number
);
197 int main(int argc
, char *argv
[])
199 conclusions_st conclusion
;
201 srandom((unsigned int)time(NULL
));
202 options_parse(argc
, argv
);
204 if (opt_servers
== NULL
)
208 if ((temp
= getenv("MEMCACHED_SERVERS")))
210 opt_servers
= strdup(temp
);
214 fprintf(stderr
, "No Servers provided\n");
219 memcached_server_st
*servers
= memcached_servers_parse(opt_servers
);
221 pthread_mutex_init(&sleeper_mutex
, NULL
);
222 pthread_cond_init(&sleep_threshhold
, NULL
);
224 scheduler(servers
, &conclusion
);
228 (void)pthread_mutex_destroy(&sleeper_mutex
);
229 (void)pthread_cond_destroy(&sleep_threshhold
);
230 conclusions_print(&conclusion
);
231 memcached_server_list_free(servers
);
236 void scheduler(memcached_server_st
*servers
, conclusions_st
*conclusion
)
238 unsigned int actual_loaded
= 0; /* Fix warning */
240 struct timeval start_time
, end_time
;
241 pairs_st
*pairs
= NULL
;
243 memcached_st
*memc
= memcached_create(NULL
);
245 /* We need to set udp behavior before adding servers to the client */
248 memcached_behavior_set(memc
, MEMCACHED_BEHAVIOR_USE_UDP
,
249 (uint64_t)opt_udp_io
);
250 for (uint32_t x
= 0; x
< memcached_server_list_count(servers
); x
++ )
252 servers
[x
].type
= MEMCACHED_CONNECTION_UDP
;
255 memcached_server_push(memc
, servers
);
257 memcached_behavior_set(memc
, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL
,
258 (uint64_t)opt_binary
);
263 if (opt_createial_load
)
264 pairs
= load_create_data(memc
, opt_createial_load
, &actual_loaded
);
266 char **keys
= static_cast<char **>(calloc(actual_loaded
, sizeof(char*)));
267 size_t *key_lengths
= static_cast<size_t *>(calloc(actual_loaded
, sizeof(size_t)));
269 if (keys
== NULL
or key_lengths
== NULL
)
278 for (uint32_t x
= 0; x
< actual_loaded
; ++x
)
280 keys
[x
]= pairs
[x
].key
;
281 key_lengths
[x
]= pairs
[x
].key_length
;
285 /* We set this after we have loaded */
287 if (opt_non_blocking_io
)
288 memcached_behavior_set(memc
, MEMCACHED_BEHAVIOR_NO_BLOCK
, 1);
291 memcached_behavior_set(memc
, MEMCACHED_BEHAVIOR_TCP_NODELAY
, 1);
294 pthread_mutex_lock(&sleeper_mutex
);
296 pthread_mutex_unlock(&sleeper_mutex
);
298 pthread_t
*threads
= new (std::nothrow
) pthread_t
[opt_concurrency
];
305 for (uint32_t x
= 0; x
< opt_concurrency
; x
++)
307 thread_context_st
*context
= new thread_context_st(memc
, opt_test
);
308 context
->test
= opt_test
;
310 context
->initial_pairs
= pairs
;
311 context
->initial_number
= actual_loaded
;
313 context
->key_lengths
= key_lengths
;
315 if (opt_test
== SET_TEST
)
317 context
->execute_pairs
= pairs_generate(opt_execute_number
, 400);
318 context
->execute_number
= opt_execute_number
;
321 /* now you create the thread */
322 if (pthread_create(threads
+x
, NULL
, run_task
, (void *)context
) != 0)
324 fprintf(stderr
,"Could not create thread\n");
329 pthread_mutex_lock(&sleeper_mutex
);
331 pthread_mutex_unlock(&sleeper_mutex
);
332 pthread_cond_broadcast(&sleep_threshhold
);
333 gettimeofday(&start_time
, NULL
);
335 for (uint32_t x
= 0; x
< opt_concurrency
; x
++)
338 pthread_join(threads
[x
], &retval
);
342 gettimeofday(&end_time
, NULL
);
344 conclusion
->load_time
= timedif(end_time
, start_time
);
345 conclusion
->read_time
= timedif(end_time
, start_time
);
349 memcached_free(memc
);
352 void options_parse(int argc
, char *argv
[])
354 memcached_programs_help_st help_options
[]=
359 static struct option long_options
[]=
361 {(OPTIONSTRING
)"concurrency", required_argument
, NULL
, OPT_SLAP_CONCURRENCY
},
362 {(OPTIONSTRING
)"debug", no_argument
, &opt_verbose
, OPT_DEBUG
},
363 {(OPTIONSTRING
)"execute-number", required_argument
, NULL
, OPT_SLAP_EXECUTE_NUMBER
},
364 {(OPTIONSTRING
)"flag", no_argument
, &opt_displayflag
, OPT_FLAG
},
365 {(OPTIONSTRING
)"flush", no_argument
, &opt_flush
, OPT_FLUSH
},
366 {(OPTIONSTRING
)"help", no_argument
, NULL
, OPT_HELP
},
367 {(OPTIONSTRING
)"initial-load", required_argument
, NULL
, OPT_SLAP_INITIAL_LOAD
}, /* Number to load initially */
368 {(OPTIONSTRING
)"non-blocking", no_argument
, &opt_non_blocking_io
, OPT_SLAP_NON_BLOCK
},
369 {(OPTIONSTRING
)"servers", required_argument
, NULL
, OPT_SERVERS
},
370 {(OPTIONSTRING
)"tcp-nodelay", no_argument
, &opt_tcp_nodelay
, OPT_SLAP_TCP_NODELAY
},
371 {(OPTIONSTRING
)"test", required_argument
, NULL
, OPT_SLAP_TEST
},
372 {(OPTIONSTRING
)"verbose", no_argument
, &opt_verbose
, OPT_VERBOSE
},
373 {(OPTIONSTRING
)"version", no_argument
, NULL
, OPT_VERSION
},
374 {(OPTIONSTRING
)"binary", no_argument
, NULL
, OPT_BINARY
},
375 {(OPTIONSTRING
)"udp", no_argument
, NULL
, OPT_UDP
},
384 option_rv
= getopt_long(argc
, argv
, "Vhvds:", long_options
, &option_index
);
385 if (option_rv
== -1) break;
392 if (opt_test
== GET_TEST
)
394 fprintf(stderr
, "You can not run a get test in UDP mode. UDP mode "
395 "does not currently support get ops.\n");
405 case OPT_VERBOSE
: /* --verbose or -v */
406 opt_verbose
= OPT_VERBOSE
;
409 case OPT_DEBUG
: /* --debug or -d */
410 opt_verbose
= OPT_DEBUG
;
413 case OPT_VERSION
: /* --version or -V */
414 version_command(PROGRAM_NAME
);
417 case OPT_HELP
: /* --help or -h */
418 help_command(PROGRAM_NAME
, PROGRAM_DESCRIPTION
, long_options
, help_options
);
421 case OPT_SERVERS
: /* --servers or -s */
422 opt_servers
= strdup(optarg
);
426 if (!strcmp(optarg
, "get"))
430 fprintf(stderr
, "You can not run a get test in UDP mode. UDP mode "
431 "does not currently support get ops.\n");
436 else if (!strcmp(optarg
, "set"))
440 else if (!strcmp(optarg
, "mget"))
446 fprintf(stderr
, "Your test, %s, is not a known test\n", optarg
);
451 case OPT_SLAP_CONCURRENCY
:
452 opt_concurrency
= (unsigned int)strtoul(optarg
, (char **)NULL
, 10);
455 case OPT_SLAP_EXECUTE_NUMBER
:
456 opt_execute_number
= (unsigned int)strtoul(optarg
, (char **)NULL
, 10);
459 case OPT_SLAP_INITIAL_LOAD
:
460 opt_createial_load
= (unsigned int)strtoul(optarg
, (char **)NULL
, 10);
464 /* getopt_long already printed an error message. */
472 if ((opt_test
== GET_TEST
or opt_test
== MGET_TEST
) && opt_createial_load
== 0)
473 opt_createial_load
= DEFAULT_INITIAL_LOAD
;
475 if (opt_execute_number
== 0)
476 opt_execute_number
= DEFAULT_EXECUTE_NUMBER
;
478 if (opt_concurrency
== 0)
479 opt_concurrency
= DEFAULT_CONCURRENCY
;
482 void conclusions_print(conclusions_st
*conclusion
)
484 printf("\tThreads connecting to servers %u\n", opt_concurrency
);
486 printf("\tLoaded %u rows\n", conclusion
->rows_loaded
);
487 printf("\tRead %u rows\n", conclusion
->rows_read
);
489 if (opt_test
== SET_TEST
)
490 printf("\tTook %ld.%03ld seconds to load data\n", conclusion
->load_time
/ 1000,
491 conclusion
->load_time
% 1000);
493 printf("\tTook %ld.%03ld seconds to read data\n", conclusion
->read_time
/ 1000,
494 conclusion
->read_time
% 1000);
497 void flush_all(memcached_st
*memc
)
499 memcached_flush(memc
, 0);
502 pairs_st
*load_create_data(memcached_st
*memc
, unsigned int number_of
,
503 unsigned int *actual_loaded
)
505 memcached_st
*memc_clone
= memcached_clone(NULL
, memc
);
506 /* We always used non-blocking IO for load since it is faster */
507 memcached_behavior_set(memc_clone
, MEMCACHED_BEHAVIOR_NO_BLOCK
, 0);
509 pairs_st
*pairs
= pairs_generate(number_of
, 400);
510 *actual_loaded
= execute_set(memc_clone
, pairs
, number_of
);
512 memcached_free(memc_clone
);