Commit | Line | Data |
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8a953620 MD |
1 | /* |
2 | * rcutorture.h: simple user-level performance/stress test of RCU. | |
3 | * | |
4 | * Usage: | |
5 | * ./rcu <nreaders> rperf [ <cpustride> ] | |
6 | * Run a read-side performance test with the specified | |
7 | * number of readers spaced by <cpustride>. | |
8 | * Thus "./rcu 16 rperf 2" would run 16 readers on even-numbered | |
9 | * CPUs from 0 to 30. | |
10 | * ./rcu <nupdaters> uperf [ <cpustride> ] | |
11 | * Run an update-side performance test with the specified | |
12 | * number of updaters and specified CPU spacing. | |
13 | * ./rcu <nreaders> perf [ <cpustride> ] | |
14 | * Run a combined read/update performance test with the specified | |
15 | * number of readers and one updater and specified CPU spacing. | |
16 | * The readers run on the low-numbered CPUs and the updater | |
17 | * of the highest-numbered CPU. | |
18 | * | |
19 | * The above tests produce output as follows: | |
20 | * | |
21 | * n_reads: 46008000 n_updates: 146026 nreaders: 2 nupdaters: 1 duration: 1 | |
22 | * ns/read: 43.4707 ns/update: 6848.1 | |
23 | * | |
24 | * The first line lists the total number of RCU reads and updates executed | |
25 | * during the test, the number of reader threads, the number of updater | |
26 | * threads, and the duration of the test in seconds. The second line | |
27 | * lists the average duration of each type of operation in nanoseconds, | |
28 | * or "nan" if the corresponding type of operation was not performed. | |
29 | * | |
30 | * ./rcu <nreaders> stress | |
31 | * Run a stress test with the specified number of readers and | |
32 | * one updater. None of the threads are affinitied to any | |
33 | * particular CPU. | |
34 | * | |
35 | * This test produces output as follows: | |
36 | * | |
37 | * n_reads: 114633217 n_updates: 3903415 n_mberror: 0 | |
38 | * rcu_stress_count: 114618391 14826 0 0 0 0 0 0 0 0 0 | |
39 | * | |
40 | * The first line lists the number of RCU read and update operations | |
41 | * executed, followed by the number of memory-ordering violations | |
42 | * (which will be zero in a correct RCU implementation). The second | |
43 | * line lists the number of readers observing progressively more stale | |
44 | * data. A correct RCU implementation will have all but the first two | |
45 | * numbers non-zero. | |
46 | * | |
47 | * This program is free software; you can redistribute it and/or modify | |
48 | * it under the terms of the GNU General Public License as published by | |
49 | * the Free Software Foundation; either version 2 of the License, or | |
50 | * (at your option) any later version. | |
51 | * | |
52 | * This program is distributed in the hope that it will be useful, | |
53 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
54 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
55 | * GNU General Public License for more details. | |
56 | * | |
57 | * You should have received a copy of the GNU General Public License | |
58 | * along with this program; if not, write to the Free Software | |
3282a76b | 59 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
8a953620 MD |
60 | * |
61 | * Copyright (c) 2008 Paul E. McKenney, IBM Corporation. | |
62 | */ | |
63 | ||
64 | /* | |
65 | * Test variables. | |
66 | */ | |
67 | ||
b57aee66 | 68 | #include <stdlib.h> |
ad460058 MD |
69 | #include "tap.h" |
70 | ||
71 | #define NR_TESTS 1 | |
b57aee66 | 72 | |
8a953620 MD |
73 | DEFINE_PER_THREAD(long long, n_reads_pt); |
74 | DEFINE_PER_THREAD(long long, n_updates_pt); | |
75 | ||
76 | long long n_reads = 0LL; | |
77 | long n_updates = 0L; | |
6ee91d83 | 78 | int nthreadsrunning; |
8a953620 MD |
79 | char argsbuf[64]; |
80 | ||
81 | #define GOFLAG_INIT 0 | |
82 | #define GOFLAG_RUN 1 | |
83 | #define GOFLAG_STOP 2 | |
84 | ||
4967f005 PB |
85 | volatile int goflag __attribute__((__aligned__(CAA_CACHE_LINE_SIZE))) |
86 | = GOFLAG_INIT; | |
8a953620 MD |
87 | |
88 | #define RCU_READ_RUN 1000 | |
89 | ||
90 | //MD | |
91 | #define RCU_READ_NESTABLE | |
92 | ||
93 | #ifdef RCU_READ_NESTABLE | |
94 | #define rcu_read_lock_nest() rcu_read_lock() | |
95 | #define rcu_read_unlock_nest() rcu_read_unlock() | |
96 | #else /* #ifdef RCU_READ_NESTABLE */ | |
97 | #define rcu_read_lock_nest() | |
98 | #define rcu_read_unlock_nest() | |
99 | #endif /* #else #ifdef RCU_READ_NESTABLE */ | |
100 | ||
1a43bbd8 MD |
101 | #ifdef TORTURE_QSBR |
102 | #define mark_rcu_quiescent_state rcu_quiescent_state | |
103 | #define put_thread_offline rcu_thread_offline | |
104 | #define put_thread_online rcu_thread_online | |
105 | #endif | |
106 | ||
8a953620 MD |
107 | #ifndef mark_rcu_quiescent_state |
108 | #define mark_rcu_quiescent_state() do ; while (0) | |
109 | #endif /* #ifdef mark_rcu_quiescent_state */ | |
110 | ||
111 | #ifndef put_thread_offline | |
112 | #define put_thread_offline() do ; while (0) | |
113 | #define put_thread_online() do ; while (0) | |
114 | #define put_thread_online_delay() do ; while (0) | |
115 | #else /* #ifndef put_thread_offline */ | |
116 | #define put_thread_online_delay() synchronize_rcu() | |
117 | #endif /* #else #ifndef put_thread_offline */ | |
118 | ||
119 | /* | |
120 | * Performance test. | |
121 | */ | |
122 | ||
123 | void *rcu_read_perf_test(void *arg) | |
124 | { | |
7106ddf8 | 125 | struct call_rcu_data *crdp; |
8a953620 MD |
126 | int i; |
127 | int me = (long)arg; | |
8a953620 MD |
128 | long long n_reads_local = 0; |
129 | ||
121a5d44 | 130 | rcu_register_thread(); |
8a953620 | 131 | run_on(me); |
ec4e58a3 | 132 | uatomic_inc(&nthreadsrunning); |
3bf02b5b | 133 | put_thread_offline(); |
8a953620 | 134 | while (goflag == GOFLAG_INIT) |
775aff2e | 135 | (void) poll(NULL, 0, 1); |
3bf02b5b | 136 | put_thread_online(); |
8a953620 MD |
137 | while (goflag == GOFLAG_RUN) { |
138 | for (i = 0; i < RCU_READ_RUN; i++) { | |
139 | rcu_read_lock(); | |
140 | /* rcu_read_lock_nest(); */ | |
141 | /* rcu_read_unlock_nest(); */ | |
142 | rcu_read_unlock(); | |
143 | } | |
144 | n_reads_local += RCU_READ_RUN; | |
145 | mark_rcu_quiescent_state(); | |
146 | } | |
147 | __get_thread_var(n_reads_pt) += n_reads_local; | |
148 | put_thread_offline(); | |
7106ddf8 PM |
149 | crdp = get_thread_call_rcu_data(); |
150 | set_thread_call_rcu_data(NULL); | |
151 | call_rcu_data_free(crdp); | |
121a5d44 | 152 | rcu_unregister_thread(); |
8a953620 MD |
153 | |
154 | return (NULL); | |
155 | } | |
156 | ||
157 | void *rcu_update_perf_test(void *arg) | |
158 | { | |
159 | long long n_updates_local = 0; | |
160 | ||
b57aee66 PM |
161 | if ((random() & 0xf00) == 0) { |
162 | struct call_rcu_data *crdp; | |
163 | ||
c1d2c60b | 164 | crdp = create_call_rcu_data(0, -1); |
b57aee66 | 165 | if (crdp != NULL) { |
ad460058 | 166 | diag("Using per-thread call_rcu() worker."); |
b57aee66 PM |
167 | set_thread_call_rcu_data(crdp); |
168 | } | |
169 | } | |
ec4e58a3 | 170 | uatomic_inc(&nthreadsrunning); |
8a953620 | 171 | while (goflag == GOFLAG_INIT) |
775aff2e | 172 | (void) poll(NULL, 0, 1); |
8a953620 MD |
173 | while (goflag == GOFLAG_RUN) { |
174 | synchronize_rcu(); | |
175 | n_updates_local++; | |
176 | } | |
177 | __get_thread_var(n_updates_pt) += n_updates_local; | |
b0b31506 | 178 | return NULL; |
8a953620 MD |
179 | } |
180 | ||
181 | void perftestinit(void) | |
182 | { | |
183 | init_per_thread(n_reads_pt, 0LL); | |
184 | init_per_thread(n_updates_pt, 0LL); | |
ec4e58a3 | 185 | uatomic_set(&nthreadsrunning, 0); |
8a953620 MD |
186 | } |
187 | ||
ad460058 | 188 | int perftestrun(int nthreads, int nreaders, int nupdaters) |
8a953620 MD |
189 | { |
190 | int t; | |
191 | int duration = 1; | |
192 | ||
5481ddb3 | 193 | cmm_smp_mb(); |
ec4e58a3 | 194 | while (uatomic_read(&nthreadsrunning) < nthreads) |
775aff2e | 195 | (void) poll(NULL, 0, 1); |
8a953620 | 196 | goflag = GOFLAG_RUN; |
5481ddb3 | 197 | cmm_smp_mb(); |
8a953620 | 198 | sleep(duration); |
5481ddb3 | 199 | cmm_smp_mb(); |
8a953620 | 200 | goflag = GOFLAG_STOP; |
5481ddb3 | 201 | cmm_smp_mb(); |
8a953620 MD |
202 | wait_all_threads(); |
203 | for_each_thread(t) { | |
204 | n_reads += per_thread(n_reads_pt, t); | |
205 | n_updates += per_thread(n_updates_pt, t); | |
206 | } | |
ad460058 | 207 | diag("n_reads: %lld n_updates: %ld nreaders: %d nupdaters: %d duration: %d", |
8a953620 | 208 | n_reads, n_updates, nreaders, nupdaters, duration); |
ad460058 | 209 | diag("ns/read: %g ns/update: %g", |
8a953620 MD |
210 | ((duration * 1000*1000*1000.*(double)nreaders) / |
211 | (double)n_reads), | |
212 | ((duration * 1000*1000*1000.*(double)nupdaters) / | |
213 | (double)n_updates)); | |
7106ddf8 | 214 | if (get_cpu_call_rcu_data(0)) { |
ad460058 | 215 | diag("Deallocating per-CPU call_rcu threads.\n"); |
7106ddf8 PM |
216 | free_all_cpu_call_rcu_data(); |
217 | } | |
ad460058 | 218 | return 0; |
8a953620 MD |
219 | } |
220 | ||
ad460058 | 221 | int perftest(int nreaders, int cpustride) |
8a953620 MD |
222 | { |
223 | int i; | |
224 | long arg; | |
225 | ||
226 | perftestinit(); | |
227 | for (i = 0; i < nreaders; i++) { | |
228 | arg = (long)(i * cpustride); | |
229 | create_thread(rcu_read_perf_test, (void *)arg); | |
230 | } | |
231 | arg = (long)(i * cpustride); | |
232 | create_thread(rcu_update_perf_test, (void *)arg); | |
ad460058 | 233 | return perftestrun(i + 1, nreaders, 1); |
8a953620 MD |
234 | } |
235 | ||
ad460058 | 236 | int rperftest(int nreaders, int cpustride) |
8a953620 MD |
237 | { |
238 | int i; | |
239 | long arg; | |
240 | ||
241 | perftestinit(); | |
242 | init_per_thread(n_reads_pt, 0LL); | |
243 | for (i = 0; i < nreaders; i++) { | |
244 | arg = (long)(i * cpustride); | |
245 | create_thread(rcu_read_perf_test, (void *)arg); | |
246 | } | |
ad460058 | 247 | return perftestrun(i, nreaders, 0); |
8a953620 MD |
248 | } |
249 | ||
ad460058 | 250 | int uperftest(int nupdaters, int cpustride) |
8a953620 MD |
251 | { |
252 | int i; | |
253 | long arg; | |
254 | ||
255 | perftestinit(); | |
256 | init_per_thread(n_reads_pt, 0LL); | |
257 | for (i = 0; i < nupdaters; i++) { | |
258 | arg = (long)(i * cpustride); | |
259 | create_thread(rcu_update_perf_test, (void *)arg); | |
260 | } | |
ad460058 | 261 | return perftestrun(i, 0, nupdaters); |
8a953620 MD |
262 | } |
263 | ||
264 | /* | |
265 | * Stress test. | |
266 | */ | |
267 | ||
268 | #define RCU_STRESS_PIPE_LEN 10 | |
269 | ||
270 | struct rcu_stress { | |
271 | int pipe_count; | |
272 | int mbtest; | |
273 | }; | |
274 | ||
b0b31506 | 275 | struct rcu_stress rcu_stress_array[RCU_STRESS_PIPE_LEN] = { { 0 } }; |
8a953620 MD |
276 | struct rcu_stress *rcu_stress_current; |
277 | int rcu_stress_idx = 0; | |
278 | ||
279 | int n_mberror = 0; | |
280 | DEFINE_PER_THREAD(long long [RCU_STRESS_PIPE_LEN + 1], rcu_stress_count); | |
281 | ||
282 | int garbage = 0; | |
283 | ||
284 | void *rcu_read_stress_test(void *arg) | |
285 | { | |
286 | int i; | |
287 | int itercnt = 0; | |
288 | struct rcu_stress *p; | |
289 | int pc; | |
290 | ||
121a5d44 | 291 | rcu_register_thread(); |
3bf02b5b | 292 | put_thread_offline(); |
8a953620 | 293 | while (goflag == GOFLAG_INIT) |
775aff2e | 294 | (void) poll(NULL, 0, 1); |
3bf02b5b | 295 | put_thread_online(); |
8a953620 MD |
296 | while (goflag == GOFLAG_RUN) { |
297 | rcu_read_lock(); | |
298 | p = rcu_dereference(rcu_stress_current); | |
299 | if (p->mbtest == 0) | |
300 | n_mberror++; | |
301 | rcu_read_lock_nest(); | |
302 | for (i = 0; i < 100; i++) | |
303 | garbage++; | |
304 | rcu_read_unlock_nest(); | |
305 | pc = p->pipe_count; | |
306 | rcu_read_unlock(); | |
307 | if ((pc > RCU_STRESS_PIPE_LEN) || (pc < 0)) | |
308 | pc = RCU_STRESS_PIPE_LEN; | |
309 | __get_thread_var(rcu_stress_count)[pc]++; | |
310 | __get_thread_var(n_reads_pt)++; | |
311 | mark_rcu_quiescent_state(); | |
312 | if ((++itercnt % 0x1000) == 0) { | |
313 | put_thread_offline(); | |
314 | put_thread_online_delay(); | |
315 | put_thread_online(); | |
316 | } | |
317 | } | |
318 | put_thread_offline(); | |
121a5d44 | 319 | rcu_unregister_thread(); |
8a953620 MD |
320 | |
321 | return (NULL); | |
322 | } | |
323 | ||
b57aee66 PM |
324 | static pthread_mutex_t call_rcu_test_mutex = PTHREAD_MUTEX_INITIALIZER; |
325 | static pthread_cond_t call_rcu_test_cond = PTHREAD_COND_INITIALIZER; | |
326 | ||
327 | void rcu_update_stress_test_rcu(struct rcu_head *head) | |
328 | { | |
ad460058 MD |
329 | int ret; |
330 | ||
331 | ret = pthread_mutex_lock(&call_rcu_test_mutex); | |
332 | if (ret) { | |
333 | errno = ret; | |
334 | diag("pthread_mutex_lock: %s", | |
335 | strerror(errno)); | |
336 | abort(); | |
b57aee66 | 337 | } |
ad460058 MD |
338 | ret = pthread_cond_signal(&call_rcu_test_cond); |
339 | if (ret) { | |
340 | errno = ret; | |
341 | diag("pthread_cond_signal: %s", | |
342 | strerror(errno)); | |
343 | abort(); | |
b57aee66 | 344 | } |
ad460058 MD |
345 | ret = pthread_mutex_unlock(&call_rcu_test_mutex); |
346 | if (ret) { | |
347 | errno = ret; | |
348 | diag("pthread_mutex_unlock: %s", | |
349 | strerror(errno)); | |
350 | abort(); | |
b57aee66 PM |
351 | } |
352 | } | |
353 | ||
8a953620 MD |
354 | void *rcu_update_stress_test(void *arg) |
355 | { | |
356 | int i; | |
357 | struct rcu_stress *p; | |
b57aee66 | 358 | struct rcu_head rh; |
8a953620 MD |
359 | |
360 | while (goflag == GOFLAG_INIT) | |
775aff2e | 361 | (void) poll(NULL, 0, 1); |
8a953620 MD |
362 | while (goflag == GOFLAG_RUN) { |
363 | i = rcu_stress_idx + 1; | |
364 | if (i >= RCU_STRESS_PIPE_LEN) | |
365 | i = 0; | |
366 | p = &rcu_stress_array[i]; | |
367 | p->mbtest = 0; | |
5481ddb3 | 368 | cmm_smp_mb(); |
8a953620 MD |
369 | p->pipe_count = 0; |
370 | p->mbtest = 1; | |
371 | rcu_assign_pointer(rcu_stress_current, p); | |
372 | rcu_stress_idx = i; | |
373 | for (i = 0; i < RCU_STRESS_PIPE_LEN; i++) | |
374 | if (i != rcu_stress_idx) | |
375 | rcu_stress_array[i].pipe_count++; | |
b57aee66 PM |
376 | if (n_updates & 0x1) |
377 | synchronize_rcu(); | |
378 | else { | |
ad460058 MD |
379 | int ret; |
380 | ||
381 | ret = pthread_mutex_lock(&call_rcu_test_mutex); | |
382 | if (ret) { | |
383 | errno = ret; | |
384 | diag("pthread_mutex_lock: %s", | |
385 | strerror(errno)); | |
386 | abort(); | |
b57aee66 PM |
387 | } |
388 | call_rcu(&rh, rcu_update_stress_test_rcu); | |
ad460058 MD |
389 | ret = pthread_cond_wait(&call_rcu_test_cond, |
390 | &call_rcu_test_mutex); | |
391 | if (ret) { | |
392 | errno = ret; | |
393 | diag("pthread_cond_signal: %s", | |
394 | strerror(errno)); | |
395 | abort(); | |
b57aee66 | 396 | } |
ad460058 MD |
397 | ret = pthread_mutex_unlock(&call_rcu_test_mutex); |
398 | if (ret) { | |
399 | errno = ret; | |
400 | diag("pthread_mutex_unlock: %s", | |
401 | strerror(errno)); | |
402 | abort(); | |
b57aee66 PM |
403 | } |
404 | } | |
8a953620 MD |
405 | n_updates++; |
406 | } | |
b0b31506 | 407 | return NULL; |
8a953620 MD |
408 | } |
409 | ||
410 | void *rcu_fake_update_stress_test(void *arg) | |
411 | { | |
b57aee66 PM |
412 | if ((random() & 0xf00) == 0) { |
413 | struct call_rcu_data *crdp; | |
414 | ||
c1d2c60b | 415 | crdp = create_call_rcu_data(0, -1); |
b57aee66 | 416 | if (crdp != NULL) { |
ad460058 | 417 | diag("Using per-thread call_rcu() worker."); |
b57aee66 PM |
418 | set_thread_call_rcu_data(crdp); |
419 | } | |
420 | } | |
8a953620 | 421 | while (goflag == GOFLAG_INIT) |
775aff2e | 422 | (void) poll(NULL, 0, 1); |
8a953620 MD |
423 | while (goflag == GOFLAG_RUN) { |
424 | synchronize_rcu(); | |
775aff2e | 425 | (void) poll(NULL, 0, 1); |
8a953620 | 426 | } |
b0b31506 | 427 | return NULL; |
8a953620 MD |
428 | } |
429 | ||
ad460058 | 430 | int stresstest(int nreaders) |
8a953620 MD |
431 | { |
432 | int i; | |
433 | int t; | |
434 | long long *p; | |
435 | long long sum; | |
436 | ||
437 | init_per_thread(n_reads_pt, 0LL); | |
438 | for_each_thread(t) { | |
439 | p = &per_thread(rcu_stress_count,t)[0]; | |
440 | for (i = 0; i <= RCU_STRESS_PIPE_LEN; i++) | |
441 | p[i] = 0LL; | |
442 | } | |
443 | rcu_stress_current = &rcu_stress_array[0]; | |
444 | rcu_stress_current->pipe_count = 0; | |
445 | rcu_stress_current->mbtest = 1; | |
446 | for (i = 0; i < nreaders; i++) | |
447 | create_thread(rcu_read_stress_test, NULL); | |
448 | create_thread(rcu_update_stress_test, NULL); | |
449 | for (i = 0; i < 5; i++) | |
450 | create_thread(rcu_fake_update_stress_test, NULL); | |
5481ddb3 | 451 | cmm_smp_mb(); |
8a953620 | 452 | goflag = GOFLAG_RUN; |
5481ddb3 | 453 | cmm_smp_mb(); |
8a953620 | 454 | sleep(10); |
5481ddb3 | 455 | cmm_smp_mb(); |
8a953620 | 456 | goflag = GOFLAG_STOP; |
5481ddb3 | 457 | cmm_smp_mb(); |
8a953620 MD |
458 | wait_all_threads(); |
459 | for_each_thread(t) | |
460 | n_reads += per_thread(n_reads_pt, t); | |
ad460058 | 461 | diag("n_reads: %lld n_updates: %ld n_mberror: %d", |
8a953620 | 462 | n_reads, n_updates, n_mberror); |
ad460058 MD |
463 | rdiag_start(); |
464 | rdiag("rcu_stress_count:"); | |
8a953620 MD |
465 | for (i = 0; i <= RCU_STRESS_PIPE_LEN; i++) { |
466 | sum = 0LL; | |
467 | for_each_thread(t) { | |
468 | sum += per_thread(rcu_stress_count, t)[i]; | |
469 | } | |
ad460058 | 470 | rdiag(" %lld", sum); |
8a953620 | 471 | } |
ad460058 | 472 | rdiag_end(); |
7106ddf8 | 473 | if (get_cpu_call_rcu_data(0)) { |
ad460058 | 474 | diag("Deallocating per-CPU call_rcu threads."); |
7106ddf8 PM |
475 | free_all_cpu_call_rcu_data(); |
476 | } | |
ad460058 MD |
477 | if (!n_mberror) |
478 | return 0; | |
479 | else | |
480 | return -1; | |
8a953620 MD |
481 | } |
482 | ||
483 | /* | |
484 | * Mainprogram. | |
485 | */ | |
486 | ||
487 | void usage(int argc, char *argv[]) | |
488 | { | |
ad460058 | 489 | diag("Usage: %s [nreaders [ perf | rperf | uperf | stress ] ]\n", argv[0]); |
8a953620 MD |
490 | exit(-1); |
491 | } | |
492 | ||
493 | int main(int argc, char *argv[]) | |
494 | { | |
495 | int nreaders = 1; | |
496 | int cpustride = 1; | |
497 | ||
ad460058 MD |
498 | plan_tests(NR_TESTS); |
499 | ||
8a953620 MD |
500 | smp_init(); |
501 | //rcu_init(); | |
b57aee66 PM |
502 | srandom(time(NULL)); |
503 | if (random() & 0x100) { | |
ad460058 | 504 | diag("Allocating per-CPU call_rcu threads."); |
b57aee66 | 505 | if (create_all_cpu_call_rcu_data(0)) |
ad460058 MD |
506 | diag("create_all_cpu_call_rcu_data: %s", |
507 | strerror(errno)); | |
b57aee66 | 508 | } |
8a953620 | 509 | |
9b171f46 MD |
510 | #ifdef DEBUG_YIELD |
511 | yield_active |= YIELD_READ; | |
512 | yield_active |= YIELD_WRITE; | |
513 | #endif | |
514 | ||
8a953620 MD |
515 | if (argc > 1) { |
516 | nreaders = strtoul(argv[1], NULL, 0); | |
ad460058 MD |
517 | if (argc == 2) { |
518 | ok(!perftest(nreaders, cpustride), | |
519 | "perftest readers: %d, stride: %d", | |
520 | nreaders, cpustride); | |
521 | goto end; | |
522 | } | |
8a953620 MD |
523 | if (argc > 3) |
524 | cpustride = strtoul(argv[3], NULL, 0); | |
525 | if (strcmp(argv[2], "perf") == 0) | |
ad460058 MD |
526 | ok(!perftest(nreaders, cpustride), |
527 | "perftest readers: %d, stride: %d", | |
528 | nreaders, cpustride); | |
8a953620 | 529 | else if (strcmp(argv[2], "rperf") == 0) |
ad460058 MD |
530 | ok(!rperftest(nreaders, cpustride), |
531 | "rperftest readers: %d, stride: %d", | |
532 | nreaders, cpustride); | |
8a953620 | 533 | else if (strcmp(argv[2], "uperf") == 0) |
ad460058 MD |
534 | ok(!uperftest(nreaders, cpustride), |
535 | "uperftest readers: %d, stride: %d", | |
536 | nreaders, cpustride); | |
8a953620 | 537 | else if (strcmp(argv[2], "stress") == 0) |
ad460058 MD |
538 | ok(!stresstest(nreaders), |
539 | "stresstest readers: %d, stride: %d", | |
540 | nreaders, cpustride); | |
541 | else | |
542 | usage(argc, argv); | |
543 | } else { | |
544 | ok(!perftest(nreaders, cpustride), | |
545 | "perftest readers: %d, stride: %d", | |
546 | nreaders, cpustride); | |
8a953620 | 547 | } |
ad460058 MD |
548 | end: |
549 | return exit_status(); | |
8a953620 | 550 | } |