1 #include "libmemcached/common.h"
15 #include <libmemcached/memcached.h>
17 #include "client_options.h"
18 #include "utilities.h"
19 #include "generator.h"
22 #define DEFAULT_INITIAL_LOAD 10000
23 #define DEFAULT_EXECUTE_NUMBER 10000
24 #define DEFAULT_CONCURRENCY 1
26 #define PROGRAM_NAME "memslap"
27 #define PROGRAM_DESCRIPTION "Generates a load against a memcached custer of servers."
29 /* Global Thread counter */
30 volatile unsigned int thread_counter
;
31 pthread_mutex_t counter_mutex
;
32 pthread_cond_t count_threshhold
;
33 volatile unsigned int master_wakeup
;
34 pthread_mutex_t sleeper_mutex
;
35 pthread_cond_t sleep_threshhold
;
37 void *run_task(void *p
);
40 typedef struct conclusions_st conclusions_st
;
41 typedef struct thread_context_st thread_context_st
;
47 struct thread_context_st
{
48 unsigned int key_count
;
49 pairs_st
*initial_pairs
;
50 unsigned int initial_number
;
51 pairs_st
*execute_pairs
;
52 unsigned int execute_number
;
57 struct conclusions_st
{
60 unsigned int rows_loaded
;
61 unsigned int rows_read
;
65 void options_parse(int argc
, char *argv
[]);
66 void conclusions_print(conclusions_st
*conclusion
);
67 void scheduler(memcached_server_st
*servers
, conclusions_st
*conclusion
);
68 pairs_st
*load_create_data(memcached_st
*memc
, unsigned int number_of
,
69 unsigned int *actual_loaded
);
70 void flush_all(memcached_st
*memc
);
72 static int opt_binary
= 0;
73 static int opt_verbose
= 0;
74 static int opt_flush
= 0;
75 static int opt_non_blocking_io
= 0;
76 static int opt_tcp_nodelay
= 0;
77 static unsigned int opt_execute_number
= 0;
78 static unsigned int opt_createial_load
= 0;
79 static unsigned int opt_concurrency
= 0;
80 static int opt_displayflag
= 0;
81 static char *opt_servers
= NULL
;
82 static int opt_udp_io
= 0;
83 test_type opt_test
= SET_TEST
;
85 int main(int argc
, char *argv
[])
87 conclusions_st conclusion
;
88 memcached_server_st
*servers
;
90 memset(&conclusion
, 0, sizeof(conclusions_st
));
93 options_parse(argc
, argv
);
99 if ((temp
= getenv("MEMCACHED_SERVERS")))
100 opt_servers
= strdup(temp
);
103 fprintf(stderr
, "No Servers provided\n");
108 servers
= memcached_servers_parse(opt_servers
);
110 pthread_mutex_init(&counter_mutex
, NULL
);
111 pthread_cond_init(&count_threshhold
, NULL
);
112 pthread_mutex_init(&sleeper_mutex
, NULL
);
113 pthread_cond_init(&sleep_threshhold
, NULL
);
115 scheduler(servers
, &conclusion
);
119 (void)pthread_mutex_destroy(&counter_mutex
);
120 (void)pthread_cond_destroy(&count_threshhold
);
121 (void)pthread_mutex_destroy(&sleeper_mutex
);
122 (void)pthread_cond_destroy(&sleep_threshhold
);
123 conclusions_print(&conclusion
);
124 memcached_server_list_free(servers
);
129 void scheduler(memcached_server_st
*servers
, conclusions_st
*conclusion
)
132 unsigned int actual_loaded
= 0; /* Fix warning */
135 struct timeval start_time
, end_time
;
136 pthread_t mainthread
; /* Thread descriptor */
137 pthread_attr_t attr
; /* Thread attributes */
138 pairs_st
*pairs
= NULL
;
140 pthread_attr_init(&attr
);
141 pthread_attr_setdetachstate(&attr
,
142 PTHREAD_CREATE_DETACHED
);
144 memc
= memcached_create(NULL
);
146 /* We need to set udp behavior before adding servers to the client */
149 memcached_behavior_set(memc
, MEMCACHED_BEHAVIOR_USE_UDP
, opt_udp_io
);
151 for(x
= 0; x
< servers
[0].count
; x
++ )
152 servers
[x
].type
= MEMCACHED_CONNECTION_UDP
;
154 memcached_server_push(memc
, servers
);
156 memcached_behavior_set(memc
, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL
, opt_binary
);
160 if (opt_createial_load
)
161 pairs
= load_create_data(memc
, opt_createial_load
, &actual_loaded
);
163 /* We set this after we have loaded */
165 if (opt_non_blocking_io
)
166 memcached_behavior_set(memc
, MEMCACHED_BEHAVIOR_NO_BLOCK
, 1);
168 memcached_behavior_set(memc
, MEMCACHED_BEHAVIOR_TCP_NODELAY
, 1);
172 pthread_mutex_lock(&counter_mutex
);
175 pthread_mutex_lock(&sleeper_mutex
);
177 pthread_mutex_unlock(&sleeper_mutex
);
179 for (x
= 0; x
< opt_concurrency
; x
++)
181 thread_context_st
*context
;
182 context
= (thread_context_st
*)calloc(1, sizeof(thread_context_st
));
184 context
->memc
= memcached_clone(NULL
, memc
);
185 context
->test
= opt_test
;
187 context
->initial_pairs
= pairs
;
188 context
->initial_number
= actual_loaded
;
190 if (opt_test
== SET_TEST
)
192 context
->execute_pairs
= pairs_generate(opt_execute_number
, 400);
193 context
->execute_number
= opt_execute_number
;
196 /* now you create the thread */
197 if (pthread_create(&mainthread
, &attr
, run_task
,
198 (void *)context
) != 0)
200 fprintf(stderr
,"Could not create thread\n");
206 pthread_mutex_unlock(&counter_mutex
);
207 pthread_attr_destroy(&attr
);
209 pthread_mutex_lock(&sleeper_mutex
);
211 pthread_mutex_unlock(&sleeper_mutex
);
212 pthread_cond_broadcast(&sleep_threshhold
);
214 gettimeofday(&start_time
, NULL
);
216 We loop until we know that all children have cleaned up.
218 pthread_mutex_lock(&counter_mutex
);
219 while (thread_counter
)
220 pthread_cond_wait(&count_threshhold
, &counter_mutex
);
221 pthread_mutex_unlock(&counter_mutex
);
223 gettimeofday(&end_time
, NULL
);
225 conclusion
->load_time
= timedif(end_time
, start_time
);
226 conclusion
->read_time
= timedif(end_time
, start_time
);
228 memcached_free(memc
);
231 void options_parse(int argc
, char *argv
[])
233 memcached_programs_help_st help_options
[]=
238 static struct option long_options
[]=
240 {"concurrency", required_argument
, NULL
, OPT_SLAP_CONCURRENCY
},
241 {"debug", no_argument
, &opt_verbose
, OPT_DEBUG
},
242 {"execute-number", required_argument
, NULL
, OPT_SLAP_EXECUTE_NUMBER
},
243 {"flag", no_argument
, &opt_displayflag
, OPT_FLAG
},
244 {"flush", no_argument
, &opt_flush
, OPT_FLUSH
},
245 {"help", no_argument
, NULL
, OPT_HELP
},
246 {"initial-load", required_argument
, NULL
, OPT_SLAP_INITIAL_LOAD
}, /* Number to load initially */
247 {"non-blocking", no_argument
, &opt_non_blocking_io
, OPT_SLAP_NON_BLOCK
},
248 {"servers", required_argument
, NULL
, OPT_SERVERS
},
249 {"tcp-nodelay", no_argument
, &opt_tcp_nodelay
, OPT_SLAP_TCP_NODELAY
},
250 {"test", required_argument
, NULL
, OPT_SLAP_TEST
},
251 {"verbose", no_argument
, &opt_verbose
, OPT_VERBOSE
},
252 {"version", no_argument
, NULL
, OPT_VERSION
},
253 {"binary", no_argument
, NULL
, OPT_BINARY
},
254 {"udp", no_argument
, NULL
, OPT_UDP
},
263 option_rv
= getopt_long(argc
, argv
, "Vhvds:", long_options
, &option_index
);
264 if (option_rv
== -1) break;
270 if (opt_test
== GET_TEST
)
272 fprintf(stderr
, "You can not run a get test in UDP mode. UDP mode "
273 "does not currently support get ops.\n");
281 case OPT_VERBOSE
: /* --verbose or -v */
282 opt_verbose
= OPT_VERBOSE
;
284 case OPT_DEBUG
: /* --debug or -d */
285 opt_verbose
= OPT_DEBUG
;
287 case OPT_VERSION
: /* --version or -V */
288 version_command(PROGRAM_NAME
);
290 case OPT_HELP
: /* --help or -h */
291 help_command(PROGRAM_NAME
, PROGRAM_DESCRIPTION
, long_options
, help_options
);
293 case OPT_SERVERS
: /* --servers or -s */
294 opt_servers
= strdup(optarg
);
297 if (!strcmp(optarg
, "get"))
301 fprintf(stderr
, "You can not run a get test in UDP mode. UDP mode "
302 "does not currently support get ops.\n");
307 else if (!strcmp(optarg
, "set"))
311 fprintf(stderr
, "Your test, %s, is not a known test\n", optarg
);
315 case OPT_SLAP_CONCURRENCY
:
316 opt_concurrency
= strtol(optarg
, (char **)NULL
, 10);
318 case OPT_SLAP_EXECUTE_NUMBER
:
319 opt_execute_number
= strtol(optarg
, (char **)NULL
, 10);
321 case OPT_SLAP_INITIAL_LOAD
:
322 opt_createial_load
= strtol(optarg
, (char **)NULL
, 10);
325 /* getopt_long already printed an error message. */
332 if (opt_test
== GET_TEST
&& opt_createial_load
== 0)
333 opt_createial_load
= DEFAULT_INITIAL_LOAD
;
335 if (opt_execute_number
== 0)
336 opt_execute_number
= DEFAULT_EXECUTE_NUMBER
;
338 if (opt_concurrency
== 0)
339 opt_concurrency
= DEFAULT_CONCURRENCY
;
342 void conclusions_print(conclusions_st
*conclusion
)
344 printf("\tThreads connecting to servers %u\n", opt_concurrency
);
346 printf("\tLoaded %u rows\n", conclusion
->rows_loaded
);
347 printf("\tRead %u rows\n", conclusion
->rows_read
);
349 if (opt_test
== SET_TEST
)
350 printf("\tTook %ld.%03ld seconds to load data\n", conclusion
->load_time
/ 1000,
351 conclusion
->load_time
% 1000);
353 printf("\tTook %ld.%03ld seconds to read data\n", conclusion
->read_time
/ 1000,
354 conclusion
->read_time
% 1000);
357 void *run_task(void *p
)
359 thread_context_st
*context
= (thread_context_st
*)p
;
364 pthread_mutex_lock(&sleeper_mutex
);
365 while (master_wakeup
)
367 pthread_cond_wait(&sleep_threshhold
, &sleeper_mutex
);
369 pthread_mutex_unlock(&sleeper_mutex
);
372 switch (context
->test
)
375 assert(context
->execute_pairs
);
376 execute_set(memc
, context
->execute_pairs
, context
->execute_number
);
379 execute_get(memc
, context
->initial_pairs
, context
->initial_number
);
383 memcached_free(memc
);
385 if (context
->execute_pairs
)
386 pairs_free(context
->execute_pairs
);
390 pthread_mutex_lock(&counter_mutex
);
392 pthread_cond_signal(&count_threshhold
);
393 pthread_mutex_unlock(&counter_mutex
);
398 void flush_all(memcached_st
*memc
)
400 memcached_flush(memc
, 0);
403 pairs_st
*load_create_data(memcached_st
*memc
, unsigned int number_of
,
404 unsigned int *actual_loaded
)
409 clone
= memcached_clone(NULL
, memc
);
410 /* We always used non-blocking IO for load since it is faster */
411 memcached_behavior_set(clone
, MEMCACHED_BEHAVIOR_NO_BLOCK
, 0);
413 pairs
= pairs_generate(number_of
, 400);
414 *actual_loaded
= execute_set(clone
, pairs
, number_of
);
416 memcached_free(clone
);