Commit | Line | Data |
---|---|---|
a5eb5ffc MD |
1 | /* |
2 | * test_urcu_wfs.c | |
3 | * | |
4 | * Userspace RCU library - example RCU-based lock-free stack | |
5 | * | |
6 | * Copyright February 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
7 | * Copyright February 2010 - Paolo Bonzini <pbonzini@redhat.com> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License along | |
20 | * with this program; if not, write to the Free Software Foundation, Inc., | |
21 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
22 | */ | |
23 | ||
24 | #define _GNU_SOURCE | |
25 | #include "../config.h" | |
26 | #include <stdio.h> | |
27 | #include <pthread.h> | |
28 | #include <stdlib.h> | |
29 | #include <stdint.h> | |
30 | #include <stdbool.h> | |
31 | #include <string.h> | |
32 | #include <sys/types.h> | |
33 | #include <sys/wait.h> | |
34 | #include <unistd.h> | |
35 | #include <stdio.h> | |
36 | #include <assert.h> | |
a5eb5ffc MD |
37 | #include <errno.h> |
38 | ||
39 | #include <urcu/arch.h> | |
bd252a04 | 40 | #include <urcu/tls-compat.h> |
96a0c0cd | 41 | #include <urcu/uatomic.h> |
2953b501 | 42 | #include "cpuset.h" |
a5eb5ffc | 43 | |
65fcc7e9 MD |
44 | #ifdef __linux__ |
45 | #include <syscall.h> | |
46 | #endif | |
47 | ||
a5eb5ffc MD |
48 | /* hardcoded number of CPUs */ |
49 | #define NR_CPUS 16384 | |
50 | ||
51 | #if defined(_syscall0) | |
52 | _syscall0(pid_t, gettid) | |
53 | #elif defined(__NR_gettid) | |
54 | static inline pid_t gettid(void) | |
55 | { | |
56 | return syscall(__NR_gettid); | |
57 | } | |
58 | #else | |
59 | #warning "use pid as tid" | |
60 | static inline pid_t gettid(void) | |
61 | { | |
62 | return getpid(); | |
63 | } | |
64 | #endif | |
65 | ||
66 | #ifndef DYNAMIC_LINK_TEST | |
67 | #define _LGPL_SOURCE | |
68 | #endif | |
cb3f3d6b | 69 | #include <urcu/wfstack.h> |
a5eb5ffc | 70 | |
69328034 MD |
71 | /* |
72 | * External synchronization used. | |
73 | */ | |
74 | enum test_sync { | |
75 | TEST_SYNC_NONE = 0, | |
76 | TEST_SYNC_MUTEX, | |
77 | }; | |
78 | ||
79 | static enum test_sync test_sync; | |
80 | ||
0ee400bd MD |
81 | static int test_force_sync; |
82 | ||
d05e9936 | 83 | static volatile int test_go, test_stop_enqueue, test_stop_dequeue; |
a5eb5ffc MD |
84 | |
85 | static unsigned long rduration; | |
86 | ||
87 | static unsigned long duration; | |
88 | ||
89 | /* read-side C.S. duration, in loops */ | |
90 | static unsigned long wdelay; | |
91 | ||
ab0aacbe | 92 | static inline void loop_sleep(unsigned long loops) |
a5eb5ffc | 93 | { |
ab0aacbe | 94 | while (loops-- != 0) |
06f22bdb | 95 | caa_cpu_relax(); |
a5eb5ffc MD |
96 | } |
97 | ||
98 | static int verbose_mode; | |
99 | ||
d05e9936 MD |
100 | static int test_pop, test_pop_all, test_wait_empty; |
101 | static int test_enqueue_stopped; | |
69328034 | 102 | |
a5eb5ffc MD |
103 | #define printf_verbose(fmt, args...) \ |
104 | do { \ | |
105 | if (verbose_mode) \ | |
69328034 | 106 | printf(fmt, ## args); \ |
a5eb5ffc MD |
107 | } while (0) |
108 | ||
109 | static unsigned int cpu_affinities[NR_CPUS]; | |
110 | static unsigned int next_aff = 0; | |
111 | static int use_affinity = 0; | |
112 | ||
113 | pthread_mutex_t affinity_mutex = PTHREAD_MUTEX_INITIALIZER; | |
114 | ||
a5eb5ffc MD |
115 | static void set_affinity(void) |
116 | { | |
95bc7fb9 | 117 | #if HAVE_SCHED_SETAFFINITY |
a5eb5ffc | 118 | cpu_set_t mask; |
95bc7fb9 MD |
119 | int cpu, ret; |
120 | #endif /* HAVE_SCHED_SETAFFINITY */ | |
a5eb5ffc MD |
121 | |
122 | if (!use_affinity) | |
123 | return; | |
124 | ||
125 | #if HAVE_SCHED_SETAFFINITY | |
126 | ret = pthread_mutex_lock(&affinity_mutex); | |
127 | if (ret) { | |
128 | perror("Error in pthread mutex lock"); | |
129 | exit(-1); | |
130 | } | |
131 | cpu = cpu_affinities[next_aff++]; | |
132 | ret = pthread_mutex_unlock(&affinity_mutex); | |
133 | if (ret) { | |
134 | perror("Error in pthread mutex unlock"); | |
135 | exit(-1); | |
136 | } | |
137 | ||
138 | CPU_ZERO(&mask); | |
139 | CPU_SET(cpu, &mask); | |
140 | #if SCHED_SETAFFINITY_ARGS == 2 | |
141 | sched_setaffinity(0, &mask); | |
142 | #else | |
143 | sched_setaffinity(0, sizeof(mask), &mask); | |
144 | #endif | |
145 | #endif /* HAVE_SCHED_SETAFFINITY */ | |
146 | } | |
147 | ||
148 | /* | |
149 | * returns 0 if test should end. | |
150 | */ | |
151 | static int test_duration_dequeue(void) | |
152 | { | |
d05e9936 | 153 | return !test_stop_dequeue; |
a5eb5ffc MD |
154 | } |
155 | ||
156 | static int test_duration_enqueue(void) | |
157 | { | |
d05e9936 | 158 | return !test_stop_enqueue; |
a5eb5ffc MD |
159 | } |
160 | ||
bd252a04 MD |
161 | static DEFINE_URCU_TLS(unsigned long long, nr_dequeues); |
162 | static DEFINE_URCU_TLS(unsigned long long, nr_enqueues); | |
a5eb5ffc | 163 | |
bd252a04 MD |
164 | static DEFINE_URCU_TLS(unsigned long long, nr_successful_dequeues); |
165 | static DEFINE_URCU_TLS(unsigned long long, nr_successful_enqueues); | |
d05e9936 MD |
166 | static DEFINE_URCU_TLS(unsigned long long, nr_empty_dest_enqueues); |
167 | static DEFINE_URCU_TLS(unsigned long long, nr_pop_all); | |
a5eb5ffc MD |
168 | |
169 | static unsigned int nr_enqueuers; | |
170 | static unsigned int nr_dequeuers; | |
171 | ||
16aa9ee8 | 172 | static struct cds_wfs_stack s; |
a5eb5ffc | 173 | |
98fbc848 | 174 | static void *thr_enqueuer(void *_count) |
a5eb5ffc MD |
175 | { |
176 | unsigned long long *count = _count; | |
d05e9936 | 177 | bool was_nonempty; |
a5eb5ffc MD |
178 | |
179 | printf_verbose("thread_begin %s, thread id : %lx, tid %lu\n", | |
6ff854ac MD |
180 | "enqueuer", (unsigned long) pthread_self(), |
181 | (unsigned long) gettid()); | |
a5eb5ffc MD |
182 | |
183 | set_affinity(); | |
184 | ||
a5eb5ffc MD |
185 | while (!test_go) |
186 | { | |
187 | } | |
5481ddb3 | 188 | cmm_smp_mb(); |
a5eb5ffc MD |
189 | |
190 | for (;;) { | |
16aa9ee8 | 191 | struct cds_wfs_node *node = malloc(sizeof(*node)); |
a5eb5ffc MD |
192 | if (!node) |
193 | goto fail; | |
16aa9ee8 | 194 | cds_wfs_node_init(node); |
d05e9936 | 195 | was_nonempty = cds_wfs_push(&s, node); |
bd252a04 | 196 | URCU_TLS(nr_successful_enqueues)++; |
d05e9936 MD |
197 | if (!was_nonempty) |
198 | URCU_TLS(nr_empty_dest_enqueues)++; | |
a5eb5ffc | 199 | |
a0b7f7ea | 200 | if (caa_unlikely(wdelay)) |
a5eb5ffc MD |
201 | loop_sleep(wdelay); |
202 | fail: | |
bd252a04 | 203 | URCU_TLS(nr_enqueues)++; |
a0b7f7ea | 204 | if (caa_unlikely(!test_duration_enqueue())) |
a5eb5ffc MD |
205 | break; |
206 | } | |
207 | ||
d05e9936 | 208 | uatomic_inc(&test_enqueue_stopped); |
bd252a04 MD |
209 | count[0] = URCU_TLS(nr_enqueues); |
210 | count[1] = URCU_TLS(nr_successful_enqueues); | |
d05e9936 | 211 | count[2] = URCU_TLS(nr_empty_dest_enqueues); |
a5eb5ffc | 212 | printf_verbose("enqueuer thread_end, thread id : %lx, tid %lu, " |
d05e9936 MD |
213 | "enqueues %llu successful_enqueues %llu, " |
214 | "empty_dest_enqueues %llu\n", | |
6ff854ac MD |
215 | pthread_self(), |
216 | (unsigned long) gettid(), | |
d05e9936 MD |
217 | URCU_TLS(nr_enqueues), |
218 | URCU_TLS(nr_successful_enqueues), | |
219 | URCU_TLS(nr_empty_dest_enqueues)); | |
a5eb5ffc MD |
220 | return ((void*)1); |
221 | ||
222 | } | |
223 | ||
69328034 MD |
224 | static void do_test_pop(enum test_sync sync) |
225 | { | |
226 | struct cds_wfs_node *node; | |
227 | ||
228 | if (sync == TEST_SYNC_MUTEX) | |
229 | cds_wfs_pop_lock(&s); | |
230 | node = __cds_wfs_pop_blocking(&s); | |
231 | if (sync == TEST_SYNC_MUTEX) | |
232 | cds_wfs_pop_unlock(&s); | |
233 | ||
234 | if (node) { | |
235 | free(node); | |
236 | URCU_TLS(nr_successful_dequeues)++; | |
237 | } | |
238 | URCU_TLS(nr_dequeues)++; | |
239 | } | |
240 | ||
241 | static void do_test_pop_all(enum test_sync sync) | |
242 | { | |
243 | struct cds_wfs_head *head; | |
244 | struct cds_wfs_node *node, *n; | |
245 | ||
246 | if (sync == TEST_SYNC_MUTEX) | |
247 | cds_wfs_pop_lock(&s); | |
248 | head = __cds_wfs_pop_all(&s); | |
249 | if (sync == TEST_SYNC_MUTEX) | |
250 | cds_wfs_pop_unlock(&s); | |
251 | ||
d05e9936 | 252 | /* Check if empty */ |
c7ba06ba | 253 | if (cds_wfs_first(head) == NULL) |
d05e9936 MD |
254 | return; |
255 | ||
256 | URCU_TLS(nr_pop_all)++; | |
257 | ||
69328034 MD |
258 | cds_wfs_for_each_blocking_safe(head, node, n) { |
259 | free(node); | |
260 | URCU_TLS(nr_successful_dequeues)++; | |
261 | URCU_TLS(nr_dequeues)++; | |
262 | } | |
263 | } | |
264 | ||
98fbc848 | 265 | static void *thr_dequeuer(void *_count) |
a5eb5ffc MD |
266 | { |
267 | unsigned long long *count = _count; | |
69328034 | 268 | unsigned int counter; |
a5eb5ffc MD |
269 | |
270 | printf_verbose("thread_begin %s, thread id : %lx, tid %lu\n", | |
6ff854ac MD |
271 | "dequeuer", (unsigned long) pthread_self(), |
272 | (unsigned long) gettid()); | |
a5eb5ffc MD |
273 | |
274 | set_affinity(); | |
275 | ||
a5eb5ffc MD |
276 | while (!test_go) |
277 | { | |
278 | } | |
5481ddb3 | 279 | cmm_smp_mb(); |
a5eb5ffc | 280 | |
69328034 | 281 | assert(test_pop || test_pop_all); |
a5eb5ffc | 282 | |
69328034 MD |
283 | for (;;) { |
284 | if (test_pop && test_pop_all) { | |
285 | if (counter & 1) | |
286 | do_test_pop(test_sync); | |
287 | else | |
288 | do_test_pop_all(test_sync); | |
289 | counter++; | |
290 | } else { | |
291 | if (test_pop) | |
292 | do_test_pop(test_sync); | |
293 | else | |
294 | do_test_pop_all(test_sync); | |
a5eb5ffc MD |
295 | } |
296 | ||
a0b7f7ea | 297 | if (caa_unlikely(!test_duration_dequeue())) |
a5eb5ffc | 298 | break; |
a0b7f7ea | 299 | if (caa_unlikely(rduration)) |
a5eb5ffc MD |
300 | loop_sleep(rduration); |
301 | } | |
302 | ||
a5eb5ffc | 303 | printf_verbose("dequeuer thread_end, thread id : %lx, tid %lu, " |
d05e9936 MD |
304 | "dequeues %llu, successful_dequeues %llu " |
305 | "pop_all %llu\n", | |
6ff854ac MD |
306 | pthread_self(), |
307 | (unsigned long) gettid(), | |
d05e9936 MD |
308 | URCU_TLS(nr_dequeues), URCU_TLS(nr_successful_dequeues), |
309 | URCU_TLS(nr_pop_all)); | |
bd252a04 MD |
310 | count[0] = URCU_TLS(nr_dequeues); |
311 | count[1] = URCU_TLS(nr_successful_dequeues); | |
d05e9936 | 312 | count[2] = URCU_TLS(nr_pop_all); |
a5eb5ffc MD |
313 | return ((void*)2); |
314 | } | |
315 | ||
98fbc848 | 316 | static void test_end(struct cds_wfs_stack *s, unsigned long long *nr_dequeues) |
a5eb5ffc | 317 | { |
16aa9ee8 | 318 | struct cds_wfs_node *node; |
a5eb5ffc MD |
319 | |
320 | do { | |
16aa9ee8 | 321 | node = cds_wfs_pop_blocking(s); |
a5eb5ffc MD |
322 | if (node) { |
323 | free(node); | |
324 | (*nr_dequeues)++; | |
325 | } | |
326 | } while (node); | |
327 | } | |
328 | ||
98fbc848 | 329 | static void show_usage(int argc, char **argv) |
a5eb5ffc MD |
330 | { |
331 | printf("Usage : %s nr_dequeuers nr_enqueuers duration (s)", argv[0]); | |
332 | printf(" [-d delay] (enqueuer period (in loops))"); | |
333 | printf(" [-c duration] (dequeuer period (in loops))"); | |
334 | printf(" [-v] (verbose output)"); | |
335 | printf(" [-a cpu#] [-a cpu#]... (affinity)"); | |
69328034 MD |
336 | printf(" [-p] (test pop)"); |
337 | printf(" [-P] (test pop_all, enabled by default)"); | |
338 | printf(" [-M] (use mutex external synchronization)"); | |
339 | printf(" Note: default: no external synchronization used."); | |
0ee400bd | 340 | printf(" [-f] (force user-provided synchronization)"); |
d05e9936 | 341 | printf(" [-w] Wait for dequeuer to empty stack"); |
a5eb5ffc MD |
342 | printf("\n"); |
343 | } | |
344 | ||
345 | int main(int argc, char **argv) | |
346 | { | |
347 | int err; | |
348 | pthread_t *tid_enqueuer, *tid_dequeuer; | |
349 | void *tret; | |
350 | unsigned long long *count_enqueuer, *count_dequeuer; | |
351 | unsigned long long tot_enqueues = 0, tot_dequeues = 0; | |
352 | unsigned long long tot_successful_enqueues = 0, | |
d05e9936 MD |
353 | tot_successful_dequeues = 0, |
354 | tot_empty_dest_enqueues = 0, | |
355 | tot_pop_all = 0; | |
a5eb5ffc | 356 | unsigned long long end_dequeues = 0; |
d05e9936 | 357 | int i, a, retval = 0; |
a5eb5ffc MD |
358 | |
359 | if (argc < 4) { | |
360 | show_usage(argc, argv); | |
361 | return -1; | |
362 | } | |
363 | ||
364 | err = sscanf(argv[1], "%u", &nr_dequeuers); | |
365 | if (err != 1) { | |
366 | show_usage(argc, argv); | |
367 | return -1; | |
368 | } | |
369 | ||
370 | err = sscanf(argv[2], "%u", &nr_enqueuers); | |
371 | if (err != 1) { | |
372 | show_usage(argc, argv); | |
373 | return -1; | |
374 | } | |
375 | ||
376 | err = sscanf(argv[3], "%lu", &duration); | |
377 | if (err != 1) { | |
378 | show_usage(argc, argv); | |
379 | return -1; | |
380 | } | |
381 | ||
382 | for (i = 4; i < argc; i++) { | |
383 | if (argv[i][0] != '-') | |
384 | continue; | |
385 | switch (argv[i][1]) { | |
386 | case 'a': | |
387 | if (argc < i + 2) { | |
388 | show_usage(argc, argv); | |
389 | return -1; | |
390 | } | |
391 | a = atoi(argv[++i]); | |
392 | cpu_affinities[next_aff++] = a; | |
393 | use_affinity = 1; | |
394 | printf_verbose("Adding CPU %d affinity\n", a); | |
395 | break; | |
396 | case 'c': | |
397 | if (argc < i + 2) { | |
398 | show_usage(argc, argv); | |
399 | return -1; | |
400 | } | |
401 | rduration = atol(argv[++i]); | |
402 | break; | |
403 | case 'd': | |
404 | if (argc < i + 2) { | |
405 | show_usage(argc, argv); | |
406 | return -1; | |
407 | } | |
408 | wdelay = atol(argv[++i]); | |
409 | break; | |
410 | case 'v': | |
411 | verbose_mode = 1; | |
412 | break; | |
69328034 MD |
413 | case 'p': |
414 | test_pop = 1; | |
415 | break; | |
416 | case 'P': | |
417 | test_pop_all = 1; | |
418 | break; | |
419 | case 'M': | |
420 | test_sync = TEST_SYNC_MUTEX; | |
421 | break; | |
d05e9936 MD |
422 | case 'w': |
423 | test_wait_empty = 1; | |
424 | break; | |
0ee400bd MD |
425 | case 'f': |
426 | test_force_sync = 1; | |
427 | break; | |
a5eb5ffc MD |
428 | } |
429 | } | |
430 | ||
69328034 MD |
431 | /* activate pop_all test by default */ |
432 | if (!test_pop && !test_pop_all) | |
433 | test_pop_all = 1; | |
434 | ||
0ee400bd MD |
435 | if (test_sync == TEST_SYNC_NONE && nr_dequeuers > 1 && test_pop) { |
436 | if (test_force_sync) { | |
437 | fprintf(stderr, "[WARNING] Using pop concurrently " | |
438 | "with other pop or pop_all without external " | |
439 | "synchronization. Expect run-time failure.\n"); | |
440 | } else { | |
441 | printf("Enforcing mutex synchronization\n"); | |
442 | test_sync = TEST_SYNC_MUTEX; | |
443 | } | |
444 | } | |
445 | ||
a5eb5ffc MD |
446 | printf_verbose("running test for %lu seconds, %u enqueuers, " |
447 | "%u dequeuers.\n", | |
448 | duration, nr_enqueuers, nr_dequeuers); | |
69328034 MD |
449 | if (test_pop) |
450 | printf_verbose("pop test activated.\n"); | |
451 | if (test_pop_all) | |
452 | printf_verbose("pop_all test activated.\n"); | |
98fbc848 MD |
453 | if (test_sync == TEST_SYNC_MUTEX) |
454 | printf_verbose("External sync: mutex.\n"); | |
455 | else | |
456 | printf_verbose("External sync: none.\n"); | |
d05e9936 MD |
457 | if (test_wait_empty) |
458 | printf_verbose("Wait for dequeuers to empty stack.\n"); | |
a5eb5ffc MD |
459 | printf_verbose("Writer delay : %lu loops.\n", rduration); |
460 | printf_verbose("Reader duration : %lu loops.\n", wdelay); | |
461 | printf_verbose("thread %-6s, thread id : %lx, tid %lu\n", | |
6ff854ac MD |
462 | "main", (unsigned long) pthread_self(), |
463 | (unsigned long) gettid()); | |
a5eb5ffc MD |
464 | |
465 | tid_enqueuer = malloc(sizeof(*tid_enqueuer) * nr_enqueuers); | |
466 | tid_dequeuer = malloc(sizeof(*tid_dequeuer) * nr_dequeuers); | |
d05e9936 MD |
467 | count_enqueuer = malloc(3 * sizeof(*count_enqueuer) * nr_enqueuers); |
468 | count_dequeuer = malloc(3 * sizeof(*count_dequeuer) * nr_dequeuers); | |
16aa9ee8 | 469 | cds_wfs_init(&s); |
a5eb5ffc MD |
470 | |
471 | next_aff = 0; | |
472 | ||
473 | for (i = 0; i < nr_enqueuers; i++) { | |
474 | err = pthread_create(&tid_enqueuer[i], NULL, thr_enqueuer, | |
d05e9936 | 475 | &count_enqueuer[3 * i]); |
a5eb5ffc MD |
476 | if (err != 0) |
477 | exit(1); | |
478 | } | |
479 | for (i = 0; i < nr_dequeuers; i++) { | |
480 | err = pthread_create(&tid_dequeuer[i], NULL, thr_dequeuer, | |
d05e9936 | 481 | &count_dequeuer[3 * i]); |
a5eb5ffc MD |
482 | if (err != 0) |
483 | exit(1); | |
484 | } | |
485 | ||
5481ddb3 | 486 | cmm_smp_mb(); |
a5eb5ffc MD |
487 | |
488 | test_go = 1; | |
489 | ||
490 | for (i = 0; i < duration; i++) { | |
491 | sleep(1); | |
492 | if (verbose_mode) | |
493 | write (1, ".", 1); | |
494 | } | |
495 | ||
d05e9936 MD |
496 | test_stop_enqueue = 1; |
497 | ||
498 | if (test_wait_empty) { | |
499 | while (nr_enqueuers != uatomic_read(&test_enqueue_stopped)) { | |
500 | sleep(1); | |
501 | } | |
502 | while (!cds_wfs_empty(&s)) { | |
503 | sleep(1); | |
504 | } | |
505 | } | |
506 | ||
507 | test_stop_dequeue = 1; | |
a5eb5ffc MD |
508 | |
509 | for (i = 0; i < nr_enqueuers; i++) { | |
510 | err = pthread_join(tid_enqueuer[i], &tret); | |
511 | if (err != 0) | |
512 | exit(1); | |
d05e9936 MD |
513 | tot_enqueues += count_enqueuer[3 * i]; |
514 | tot_successful_enqueues += count_enqueuer[3 * i + 1]; | |
515 | tot_empty_dest_enqueues += count_enqueuer[3 * i + 2]; | |
a5eb5ffc MD |
516 | } |
517 | for (i = 0; i < nr_dequeuers; i++) { | |
518 | err = pthread_join(tid_dequeuer[i], &tret); | |
519 | if (err != 0) | |
520 | exit(1); | |
d05e9936 MD |
521 | tot_dequeues += count_dequeuer[3 * i]; |
522 | tot_successful_dequeues += count_dequeuer[3 * i + 1]; | |
523 | tot_pop_all += count_dequeuer[3 * i + 2]; | |
a5eb5ffc MD |
524 | } |
525 | ||
526 | test_end(&s, &end_dequeues); | |
527 | ||
528 | printf_verbose("total number of enqueues : %llu, dequeues %llu\n", | |
529 | tot_enqueues, tot_dequeues); | |
530 | printf_verbose("total number of successful enqueues : %llu, " | |
d05e9936 MD |
531 | "enqueues to empty dest : %llu, " |
532 | "successful dequeues %llu, " | |
533 | "pop_all : %llu\n", | |
534 | tot_successful_enqueues, | |
535 | tot_empty_dest_enqueues, | |
536 | tot_successful_dequeues, | |
537 | tot_pop_all); | |
a5eb5ffc MD |
538 | printf("SUMMARY %-25s testdur %4lu nr_enqueuers %3u wdelay %6lu " |
539 | "nr_dequeuers %3u " | |
540 | "rdur %6lu nr_enqueues %12llu nr_dequeues %12llu " | |
d05e9936 MD |
541 | "successful enqueues %12llu enqueues to empty dest %12llu " |
542 | "successful dequeues %12llu pop_all %12llu " | |
a5eb5ffc MD |
543 | "end_dequeues %llu nr_ops %12llu\n", |
544 | argv[0], duration, nr_enqueuers, wdelay, | |
545 | nr_dequeuers, rduration, tot_enqueues, tot_dequeues, | |
546 | tot_successful_enqueues, | |
d05e9936 MD |
547 | tot_empty_dest_enqueues, |
548 | tot_successful_dequeues, tot_pop_all, end_dequeues, | |
a5eb5ffc | 549 | tot_enqueues + tot_dequeues); |
d05e9936 | 550 | if (tot_successful_enqueues != tot_successful_dequeues + end_dequeues) { |
a5eb5ffc MD |
551 | printf("WARNING! Discrepancy between nr succ. enqueues %llu vs " |
552 | "succ. dequeues + end dequeues %llu.\n", | |
553 | tot_successful_enqueues, | |
554 | tot_successful_dequeues + end_dequeues); | |
d05e9936 MD |
555 | retval = 1; |
556 | } | |
557 | /* | |
558 | * If only using pop_all to dequeue, the enqueuer should see | |
559 | * exactly as many empty queues than the number of non-empty | |
560 | * stacks dequeued. | |
561 | */ | |
562 | if (test_wait_empty && test_pop_all && !test_pop | |
563 | && tot_empty_dest_enqueues != tot_pop_all) { | |
564 | printf("WARNING! Discrepancy between empty enqueue (%llu) and " | |
565 | "number of non-empty pop_all (%llu)\n", | |
566 | tot_empty_dest_enqueues, | |
567 | tot_pop_all); | |
568 | retval = 1; | |
569 | } | |
a5eb5ffc MD |
570 | free(count_enqueuer); |
571 | free(count_dequeuer); | |
572 | free(tid_enqueuer); | |
573 | free(tid_dequeuer); | |
d05e9936 | 574 | return retval; |
a5eb5ffc | 575 | } |