12 #include <memcached.h>
14 #include "client_options.h"
15 #include "utilities.h"
16 #include "generator.h"
19 #define DEFAULT_INITIAL_LOAD 10000
20 #define DEFAULT_EXECUTE_NUMBER 10000
21 #define DEFAULT_CONCURRENCY 1
23 #define PROGRAM_NAME "memslap"
24 #define PROGRAM_DESCRIPTION "Generates a load against a memcached custer of servers."
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
;
34 void *run_task(void *p
);
37 typedef struct conclusions_st conclusions_st
;
38 typedef struct thread_context_st thread_context_st
;
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
;
51 memcached_server_st
*servers
;
54 struct conclusions_st
{
57 unsigned int rows_loaded
;
58 unsigned int rows_read
;
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_create_data(memcached_server_st
*servers
, unsigned int number_of
,
66 unsigned int *actual_loaded
);
67 void flush_all(memcached_server_st
*servers
);
69 static int opt_verbose
= 0;
70 static int opt_flush
= 0;
71 static int opt_non_blocking_io
= 0;
72 static int opt_tcp_nodelay
= 0;
73 static unsigned int opt_execute_number
= 0;
74 static unsigned int opt_createial_load
= 0;
75 static unsigned int opt_concurrency
= 0;
76 static int opt_displayflag
= 0;
77 static char *opt_servers
= NULL
;
78 test_type opt_test
= SET_TEST
;
80 int main(int argc
, char *argv
[])
82 conclusions_st conclusion
;
83 memcached_server_st
*servers
;
85 memset(&conclusion
, 0, sizeof(conclusions_st
));
88 options_parse(argc
, argv
);
93 servers
= parse_opt_servers(opt_servers
);
95 pthread_mutex_init(&counter_mutex
, NULL
);
96 pthread_cond_init(&count_threshhold
, NULL
);
97 pthread_mutex_init(&sleeper_mutex
, NULL
);
98 pthread_cond_init(&sleep_threshhold
, NULL
);
100 scheduler(servers
, &conclusion
);
104 (void)pthread_mutex_destroy(&counter_mutex
);
105 (void)pthread_cond_destroy(&count_threshhold
);
106 (void)pthread_mutex_destroy(&sleeper_mutex
);
107 (void)pthread_cond_destroy(&sleep_threshhold
);
108 conclusions_print(&conclusion
);
109 memcached_server_list_free(servers
);
114 void scheduler(memcached_server_st
*servers
, conclusions_st
*conclusion
)
117 unsigned int actual_loaded
;
119 struct timeval start_time
, end_time
;
120 pthread_t mainthread
; /* Thread descriptor */
121 pthread_attr_t attr
; /* Thread attributes */
122 pairs_st
*pairs
= NULL
;
124 pthread_attr_init(&attr
);
125 pthread_attr_setdetachstate(&attr
,
126 PTHREAD_CREATE_DETACHED
);
130 if (opt_createial_load
)
131 pairs
= load_create_data(servers
, opt_createial_load
, &actual_loaded
);
133 pthread_mutex_lock(&counter_mutex
);
136 pthread_mutex_lock(&sleeper_mutex
);
138 pthread_mutex_unlock(&sleeper_mutex
);
140 for (x
= 0; x
< opt_concurrency
; x
++)
142 thread_context_st
*context
;
143 context
= (thread_context_st
*)malloc(sizeof(thread_context_st
));
145 context
->servers
= servers
;
146 context
->test
= opt_test
;
148 context
->initial_pairs
= pairs
;
149 context
->initial_number
= actual_loaded
;
151 if (opt_test
== SET_TEST
)
153 context
->execute_pairs
= pairs_generate(opt_execute_number
);
154 context
->execute_number
= opt_execute_number
;
157 /* now you create the thread */
158 if (pthread_create(&mainthread
, &attr
, run_task
,
159 (void *)context
) != 0)
161 fprintf(stderr
,"Could not create thread\n");
167 pthread_mutex_unlock(&counter_mutex
);
168 pthread_attr_destroy(&attr
);
170 pthread_mutex_lock(&sleeper_mutex
);
172 pthread_mutex_unlock(&sleeper_mutex
);
173 pthread_cond_broadcast(&sleep_threshhold
);
175 gettimeofday(&start_time
, NULL
);
177 We loop until we know that all children have cleaned up.
179 pthread_mutex_lock(&counter_mutex
);
180 while (thread_counter
)
182 struct timespec abstime
;
184 memset(&abstime
, 0, sizeof(struct timespec
));
187 pthread_cond_timedwait(&count_threshhold
, &counter_mutex
, &abstime
);
189 pthread_mutex_unlock(&counter_mutex
);
191 gettimeofday(&end_time
, NULL
);
193 conclusion
->load_time
= timedif(end_time
, start_time
);
194 conclusion
->read_time
= timedif(end_time
, start_time
);
198 void options_parse(int argc
, char *argv
[])
200 memcached_programs_help_st help_options
[]=
205 static struct option long_options
[]=
207 {"concurrency", required_argument
, NULL
, OPT_SLAP_CONCURRENCY
},
208 {"debug", no_argument
, &opt_verbose
, OPT_DEBUG
},
209 {"execute-number", required_argument
, NULL
, OPT_SLAP_EXECUTE_NUMBER
},
210 {"flag", no_argument
, &opt_displayflag
, OPT_FLAG
},
211 {"flush", no_argument
, &opt_flush
, OPT_FLUSH
},
212 {"help", no_argument
, NULL
, OPT_HELP
},
213 {"initial-load", required_argument
, NULL
, OPT_SLAP_INITIAL_LOAD
}, /* Number to load initially */
214 {"non-blocking", no_argument
, &opt_non_blocking_io
, OPT_SLAP_NON_BLOCK
},
215 {"servers", required_argument
, NULL
, OPT_SERVERS
},
216 {"tcp-nodelay", no_argument
, &opt_tcp_nodelay
, OPT_SLAP_TCP_NODELAY
},
217 {"test", required_argument
, NULL
, OPT_SLAP_TEST
},
218 {"verbose", no_argument
, &opt_verbose
, OPT_VERBOSE
},
219 {"version", no_argument
, NULL
, OPT_VERSION
},
228 option_rv
= getopt_long(argc
, argv
, "Vhvds:", long_options
, &option_index
);
229 if (option_rv
== -1) break;
234 case OPT_VERBOSE
: /* --verbose or -v */
235 opt_verbose
= OPT_VERBOSE
;
237 case OPT_DEBUG
: /* --debug or -d */
238 opt_verbose
= OPT_DEBUG
;
240 case OPT_VERSION
: /* --version or -V */
241 version_command(PROGRAM_NAME
);
243 case OPT_HELP
: /* --help or -h */
244 help_command(PROGRAM_NAME
, PROGRAM_DESCRIPTION
, long_options
, help_options
);
246 case OPT_SERVERS
: /* --servers or -s */
247 opt_servers
= strdup(optarg
);
250 if (!strcmp(optarg
, "get"))
252 else if (!strcmp(optarg
, "set"))
256 fprintf(stderr
, "Your test, %s, is not a known test\n", optarg
);
260 case OPT_SLAP_CONCURRENCY
:
261 opt_concurrency
= strtol(optarg
, (char **)NULL
, 10);
262 case OPT_SLAP_EXECUTE_NUMBER
:
263 opt_execute_number
= strtol(optarg
, (char **)NULL
, 10);
265 case OPT_SLAP_INITIAL_LOAD
:
266 opt_createial_load
= strtol(optarg
, (char **)NULL
, 10);
269 /* getopt_long already printed an error message. */
276 if (opt_test
== GET_TEST
&& opt_createial_load
== 0)
277 opt_createial_load
= DEFAULT_INITIAL_LOAD
;
279 if (opt_execute_number
== 0)
280 opt_execute_number
= DEFAULT_EXECUTE_NUMBER
;
282 if (opt_concurrency
== 0)
283 opt_concurrency
= DEFAULT_CONCURRENCY
;
286 void conclusions_print(conclusions_st
*conclusion
)
288 printf("\tThreads connecting to servers %u\n", opt_concurrency
);
290 printf("\tLoaded %u rows\n", conclusion
->rows_loaded
);
291 printf("\tRead %u rows\n", conclusion
->rows_read
);
293 if (opt_test
== SET_TEST
)
294 printf("\tTook %ld.%03ld seconds to load data\n", conclusion
->load_time
/ 1000,
295 conclusion
->load_time
% 1000);
297 printf("\tTook %ld.%03ld seconds to read data\n", conclusion
->read_time
/ 1000,
298 conclusion
->read_time
% 1000);
301 void *run_task(void *p
)
303 thread_context_st
*context
= (thread_context_st
*)p
;
306 memc
= memcached_create(NULL
);
307 if (opt_non_blocking_io
)
308 memcached_behavior_set(memc
, MEMCACHED_BEHAVIOR_NO_BLOCK
, NULL
);
310 memcached_behavior_set(memc
, MEMCACHED_BEHAVIOR_TCP_NODELAY
, NULL
);
312 memcached_server_push(memc
, context
->servers
);
314 pthread_mutex_lock(&sleeper_mutex
);
315 while (master_wakeup
)
317 pthread_cond_wait(&sleep_threshhold
, &sleeper_mutex
);
319 pthread_mutex_unlock(&sleeper_mutex
);
322 switch (context
->test
)
325 execute_set(memc
, context
->execute_pairs
, context
->execute_number
);
328 execute_get(memc
, context
->initial_pairs
, context
->initial_number
);
332 pthread_mutex_lock(&counter_mutex
);
334 pthread_cond_signal(&count_threshhold
);
335 pthread_mutex_unlock(&counter_mutex
);
336 memcached_free(memc
);
338 if (context
->execute_pairs
)
339 pairs_free(context
->execute_pairs
);
345 void flush_all(memcached_server_st
*servers
)
349 memc
= memcached_create(NULL
);
351 memcached_server_push(memc
, servers
);
353 memcached_flush(memc
, 0);
355 memcached_free(memc
);
358 pairs_st
*load_create_data(memcached_server_st
*servers
, unsigned int number_of
,
359 unsigned int *actual_loaded
)
364 memc
= memcached_create(NULL
);
365 /* We always used non-blocking IO for load since it is faster */
366 memcached_behavior_set(memc
, MEMCACHED_BEHAVIOR_NO_BLOCK
, NULL
);
367 memcached_server_push(memc
, servers
);
369 pairs
= pairs_generate(number_of
);
370 *actual_loaded
= execute_set(memc
, pairs
, number_of
);
372 memcached_free(memc
);