14 #include <memcached.h>
16 #include "client_options.h"
17 #include "utilities.h"
18 #include "generator.h"
21 #define DEFAULT_INITIAL_LOAD 10000
22 #define DEFAULT_EXECUTE_NUMBER 10000
23 #define DEFAULT_CONCURRENCY 1
25 #define PROGRAM_NAME "memslap"
26 #define PROGRAM_DESCRIPTION "Generates a load against a memcached custer of servers."
28 /* Global Thread counter */
29 volatile unsigned int thread_counter
;
30 pthread_mutex_t counter_mutex
;
31 pthread_cond_t count_threshhold
;
32 volatile unsigned int master_wakeup
;
33 pthread_mutex_t sleeper_mutex
;
34 pthread_cond_t sleep_threshhold
;
36 void *run_task(void *p
);
39 typedef struct conclusions_st conclusions_st
;
40 typedef struct thread_context_st thread_context_st
;
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
;
56 struct conclusions_st
{
59 unsigned int rows_loaded
;
60 unsigned int rows_read
;
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_st
*memc
, unsigned int number_of
,
68 unsigned int *actual_loaded
);
69 void flush_all(memcached_st
*memc
);
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
;
82 int main(int argc
, char *argv
[])
84 conclusions_st conclusion
;
85 memcached_server_st
*servers
;
87 memset(&conclusion
, 0, sizeof(conclusions_st
));
90 options_parse(argc
, argv
);
96 if ((temp
= getenv("MEMCACHED_SERVERS")))
97 opt_servers
= strdup(temp
);
102 servers
= memcached_servers_parse(opt_servers
);
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
);
109 scheduler(servers
, &conclusion
);
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
);
123 void scheduler(memcached_server_st
*servers
, conclusions_st
*conclusion
)
126 unsigned int actual_loaded
= 0; /* Fix warning */
129 struct timeval start_time
, end_time
;
130 pthread_t mainthread
; /* Thread descriptor */
131 pthread_attr_t attr
; /* Thread attributes */
132 pairs_st
*pairs
= NULL
;
134 pthread_attr_init(&attr
);
135 pthread_attr_setdetachstate(&attr
,
136 PTHREAD_CREATE_DETACHED
);
138 memc
= memcached_create(NULL
);
139 memcached_server_push(memc
, servers
);
143 if (opt_createial_load
)
144 pairs
= load_create_data(memc
, opt_createial_load
, &actual_loaded
);
146 /* We set this after we have loaded */
148 unsigned int value
= 1;
149 if (opt_non_blocking_io
)
150 memcached_behavior_set(memc
, MEMCACHED_BEHAVIOR_NO_BLOCK
, &value
);
152 memcached_behavior_set(memc
, MEMCACHED_BEHAVIOR_TCP_NODELAY
, &value
);
156 pthread_mutex_lock(&counter_mutex
);
159 pthread_mutex_lock(&sleeper_mutex
);
161 pthread_mutex_unlock(&sleeper_mutex
);
163 for (x
= 0; x
< opt_concurrency
; x
++)
165 thread_context_st
*context
;
166 context
= (thread_context_st
*)malloc(sizeof(thread_context_st
));
167 memset(context
, 0, sizeof(thread_context_st
));
169 context
->memc
= memcached_clone(NULL
, memc
);
170 context
->test
= opt_test
;
172 context
->initial_pairs
= pairs
;
173 context
->initial_number
= actual_loaded
;
175 if (opt_test
== SET_TEST
)
177 context
->execute_pairs
= pairs_generate(opt_execute_number
, 400);
178 context
->execute_number
= opt_execute_number
;
181 /* now you create the thread */
182 if (pthread_create(&mainthread
, &attr
, run_task
,
183 (void *)context
) != 0)
185 fprintf(stderr
,"Could not create thread\n");
191 pthread_mutex_unlock(&counter_mutex
);
192 pthread_attr_destroy(&attr
);
194 pthread_mutex_lock(&sleeper_mutex
);
196 pthread_mutex_unlock(&sleeper_mutex
);
197 pthread_cond_broadcast(&sleep_threshhold
);
199 gettimeofday(&start_time
, NULL
);
201 We loop until we know that all children have cleaned up.
203 pthread_mutex_lock(&counter_mutex
);
204 while (thread_counter
)
206 struct timespec abstime
;
208 memset(&abstime
, 0, sizeof(struct timespec
));
211 pthread_cond_timedwait(&count_threshhold
, &counter_mutex
, &abstime
);
213 pthread_mutex_unlock(&counter_mutex
);
215 gettimeofday(&end_time
, NULL
);
217 conclusion
->load_time
= timedif(end_time
, start_time
);
218 conclusion
->read_time
= timedif(end_time
, start_time
);
222 void options_parse(int argc
, char *argv
[])
224 memcached_programs_help_st help_options
[]=
229 static struct option long_options
[]=
231 {"concurrency", required_argument
, NULL
, OPT_SLAP_CONCURRENCY
},
232 {"debug", no_argument
, &opt_verbose
, OPT_DEBUG
},
233 {"execute-number", required_argument
, NULL
, OPT_SLAP_EXECUTE_NUMBER
},
234 {"flag", no_argument
, &opt_displayflag
, OPT_FLAG
},
235 {"flush", no_argument
, &opt_flush
, OPT_FLUSH
},
236 {"help", no_argument
, NULL
, OPT_HELP
},
237 {"initial-load", required_argument
, NULL
, OPT_SLAP_INITIAL_LOAD
}, /* Number to load initially */
238 {"non-blocking", no_argument
, &opt_non_blocking_io
, OPT_SLAP_NON_BLOCK
},
239 {"servers", required_argument
, NULL
, OPT_SERVERS
},
240 {"tcp-nodelay", no_argument
, &opt_tcp_nodelay
, OPT_SLAP_TCP_NODELAY
},
241 {"test", required_argument
, NULL
, OPT_SLAP_TEST
},
242 {"verbose", no_argument
, &opt_verbose
, OPT_VERBOSE
},
243 {"version", no_argument
, NULL
, OPT_VERSION
},
252 option_rv
= getopt_long(argc
, argv
, "Vhvds:", long_options
, &option_index
);
253 if (option_rv
== -1) break;
258 case OPT_VERBOSE
: /* --verbose or -v */
259 opt_verbose
= OPT_VERBOSE
;
261 case OPT_DEBUG
: /* --debug or -d */
262 opt_verbose
= OPT_DEBUG
;
264 case OPT_VERSION
: /* --version or -V */
265 version_command(PROGRAM_NAME
);
267 case OPT_HELP
: /* --help or -h */
268 help_command(PROGRAM_NAME
, PROGRAM_DESCRIPTION
, long_options
, help_options
);
270 case OPT_SERVERS
: /* --servers or -s */
271 opt_servers
= strdup(optarg
);
274 if (!strcmp(optarg
, "get"))
276 else if (!strcmp(optarg
, "set"))
280 fprintf(stderr
, "Your test, %s, is not a known test\n", optarg
);
284 case OPT_SLAP_CONCURRENCY
:
285 opt_concurrency
= strtol(optarg
, (char **)NULL
, 10);
286 case OPT_SLAP_EXECUTE_NUMBER
:
287 opt_execute_number
= strtol(optarg
, (char **)NULL
, 10);
289 case OPT_SLAP_INITIAL_LOAD
:
290 opt_createial_load
= strtol(optarg
, (char **)NULL
, 10);
293 /* getopt_long already printed an error message. */
300 if (opt_test
== GET_TEST
&& opt_createial_load
== 0)
301 opt_createial_load
= DEFAULT_INITIAL_LOAD
;
303 if (opt_execute_number
== 0)
304 opt_execute_number
= DEFAULT_EXECUTE_NUMBER
;
306 if (opt_concurrency
== 0)
307 opt_concurrency
= DEFAULT_CONCURRENCY
;
310 void conclusions_print(conclusions_st
*conclusion
)
312 printf("\tThreads connecting to servers %u\n", opt_concurrency
);
314 printf("\tLoaded %u rows\n", conclusion
->rows_loaded
);
315 printf("\tRead %u rows\n", conclusion
->rows_read
);
317 if (opt_test
== SET_TEST
)
318 printf("\tTook %ld.%03ld seconds to load data\n", conclusion
->load_time
/ 1000,
319 conclusion
->load_time
% 1000);
321 printf("\tTook %ld.%03ld seconds to read data\n", conclusion
->read_time
/ 1000,
322 conclusion
->read_time
% 1000);
325 void *run_task(void *p
)
327 thread_context_st
*context
= (thread_context_st
*)p
;
332 pthread_mutex_lock(&sleeper_mutex
);
333 while (master_wakeup
)
335 pthread_cond_wait(&sleep_threshhold
, &sleeper_mutex
);
337 pthread_mutex_unlock(&sleeper_mutex
);
340 switch (context
->test
)
343 execute_set(memc
, context
->execute_pairs
, context
->execute_number
);
346 execute_get(memc
, context
->initial_pairs
, context
->initial_number
);
350 memcached_free(memc
);
352 if (context
->execute_pairs
)
353 pairs_free(context
->execute_pairs
);
356 pthread_mutex_lock(&counter_mutex
);
358 pthread_cond_signal(&count_threshhold
);
359 pthread_mutex_unlock(&counter_mutex
);
364 void flush_all(memcached_st
*memc
)
366 memcached_flush(memc
, 0);
369 pairs_st
*load_create_data(memcached_st
*memc
, unsigned int number_of
,
370 unsigned int *actual_loaded
)
375 clone
= memcached_clone(NULL
, memc
);
376 /* We always used non-blocking IO for load since it is faster */
377 memcached_behavior_set(clone
, MEMCACHED_BEHAVIOR_NO_BLOCK
, NULL
);
379 pairs
= pairs_generate(number_of
, 400);
380 *actual_loaded
= execute_set(clone
, pairs
, number_of
);
382 memcached_free(clone
);