Commit | Line | Data |
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ebac4655 JA |
1 | /* |
2 | * fio - the flexible io tester | |
3 | * | |
4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> | |
aae22ca7 | 5 | * Copyright (C) 2006 Jens Axboe <axboe@kernel.dk> |
ebac4655 | 6 | * |
8e9fe637 JA |
7 | * The license below covers all files distributed with fio unless otherwise |
8 | * noted in the file itself. | |
9 | * | |
ebac4655 | 10 | * This program is free software; you can redistribute it and/or modify |
8e9fe637 JA |
11 | * it under the terms of the GNU General Public License version 2 as |
12 | * published by the Free Software Foundation. | |
ebac4655 JA |
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 | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | * | |
23 | */ | |
ebac4655 JA |
24 | #include <unistd.h> |
25 | #include <fcntl.h> | |
26 | #include <string.h> | |
ebac4655 JA |
27 | #include <signal.h> |
28 | #include <time.h> | |
dbe1125e | 29 | #include <locale.h> |
36167d82 | 30 | #include <assert.h> |
ebac4655 JA |
31 | #include <sys/stat.h> |
32 | #include <sys/wait.h> | |
33 | #include <sys/ipc.h> | |
34 | #include <sys/shm.h> | |
ebac4655 JA |
35 | #include <sys/mman.h> |
36 | ||
37 | #include "fio.h" | |
38 | #include "os.h" | |
39 | ||
29d610e1 JA |
40 | static unsigned long page_mask; |
41 | #define ALIGN(buf) \ | |
42 | (char *) (((unsigned long) (buf) + page_mask) & ~page_mask) | |
ebac4655 JA |
43 | |
44 | int groupid = 0; | |
45 | int thread_number = 0; | |
ebac4655 | 46 | int shm_id = 0; |
53cdc686 | 47 | int temp_stall_ts; |
ebac4655 | 48 | |
bbfd6b00 | 49 | static volatile int startup_sem; |
6ce15a32 | 50 | static volatile int fio_abort; |
437c9b71 | 51 | static int exit_value; |
ebac4655 | 52 | |
bb3884d8 JA |
53 | struct io_log *agg_io_log[2]; |
54 | ||
ebac4655 | 55 | #define TERMINATE_ALL (-1) |
75154845 | 56 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 | 57 | |
6ce15a32 JA |
58 | static inline void td_set_runstate(struct thread_data *td, int runstate) |
59 | { | |
60 | td->runstate = runstate; | |
61 | } | |
62 | ||
390c40e2 | 63 | static void terminate_threads(int group_id) |
ebac4655 | 64 | { |
34572e28 | 65 | struct thread_data *td; |
ebac4655 JA |
66 | int i; |
67 | ||
34572e28 | 68 | for_each_td(td, i) { |
ebac4655 | 69 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
c1302d44 JA |
70 | /* |
71 | * if the thread is running, just let it exit | |
72 | */ | |
73 | if (td->runstate < TD_RUNNING) | |
74 | kill(td->pid, SIGQUIT); | |
ebac4655 JA |
75 | td->terminate = 1; |
76 | td->start_delay = 0; | |
77 | } | |
78 | } | |
79 | } | |
80 | ||
81 | static void sig_handler(int sig) | |
82 | { | |
83 | switch (sig) { | |
84 | case SIGALRM: | |
85 | update_io_ticks(); | |
86 | disk_util_timer_arm(); | |
87 | print_thread_status(); | |
88 | break; | |
89 | default: | |
6ce15a32 | 90 | printf("\nfio: terminating on signal %d\n", sig); |
ebac4655 | 91 | fflush(stdout); |
390c40e2 | 92 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
93 | break; |
94 | } | |
95 | } | |
96 | ||
906c8d75 JA |
97 | /* |
98 | * Check if we are above the minimum rate given. | |
99 | */ | |
ebac4655 JA |
100 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
101 | { | |
0904200b | 102 | unsigned long long bytes = 0; |
ebac4655 JA |
103 | unsigned long spent; |
104 | unsigned long rate; | |
ebac4655 | 105 | |
780bf1a1 JA |
106 | /* |
107 | * No minimum rate set, always ok | |
108 | */ | |
109 | if (!td->ratemin) | |
110 | return 0; | |
111 | ||
ebac4655 JA |
112 | /* |
113 | * allow a 2 second settle period in the beginning | |
114 | */ | |
115 | if (mtime_since(&td->start, now) < 2000) | |
116 | return 0; | |
117 | ||
0904200b JA |
118 | if (td_read(td)) |
119 | bytes += td->this_io_bytes[DDIR_READ]; | |
120 | if (td_write(td)) | |
121 | bytes += td->this_io_bytes[DDIR_WRITE]; | |
122 | ||
ebac4655 JA |
123 | /* |
124 | * if rate blocks is set, sample is running | |
125 | */ | |
126 | if (td->rate_bytes) { | |
127 | spent = mtime_since(&td->lastrate, now); | |
128 | if (spent < td->ratecycle) | |
129 | return 0; | |
130 | ||
413dd459 JA |
131 | if (bytes < td->rate_bytes) { |
132 | fprintf(f_out, "%s: min rate %u not met\n", td->name, td->ratemin); | |
ebac4655 | 133 | return 1; |
413dd459 JA |
134 | } else { |
135 | rate = (bytes - td->rate_bytes) / spent; | |
136 | if (rate < td->ratemin || bytes < td->rate_bytes) { | |
137 | fprintf(f_out, "%s: min rate %u not met, got %luKiB/sec\n", td->name, td->ratemin, rate); | |
138 | return 1; | |
139 | } | |
ebac4655 JA |
140 | } |
141 | } | |
142 | ||
0904200b | 143 | td->rate_bytes = bytes; |
ebac4655 JA |
144 | memcpy(&td->lastrate, now, sizeof(*now)); |
145 | return 0; | |
146 | } | |
147 | ||
148 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
149 | { | |
150 | if (!td->timeout) | |
151 | return 0; | |
152 | if (mtime_since(&td->epoch, t) >= td->timeout * 1000) | |
153 | return 1; | |
154 | ||
155 | return 0; | |
156 | } | |
157 | ||
906c8d75 JA |
158 | /* |
159 | * When job exits, we can cancel the in-flight IO if we are using async | |
160 | * io. Attempt to do so. | |
161 | */ | |
ebac4655 JA |
162 | static void cleanup_pending_aio(struct thread_data *td) |
163 | { | |
ebac4655 | 164 | struct list_head *entry, *n; |
ebac4655 JA |
165 | struct io_u *io_u; |
166 | int r; | |
167 | ||
168 | /* | |
169 | * get immediately available events, if any | |
170 | */ | |
d7762cf8 | 171 | r = io_u_queued_complete(td, 0); |
b2fdda43 JA |
172 | if (r < 0) |
173 | return; | |
ebac4655 JA |
174 | |
175 | /* | |
176 | * now cancel remaining active events | |
177 | */ | |
2866c82d | 178 | if (td->io_ops->cancel) { |
ebac4655 JA |
179 | list_for_each_safe(entry, n, &td->io_u_busylist) { |
180 | io_u = list_entry(entry, struct io_u, list); | |
181 | ||
0c6e7517 JA |
182 | /* |
183 | * if the io_u isn't in flight, then that generally | |
184 | * means someone leaked an io_u. complain but fix | |
185 | * it up, so we don't stall here. | |
186 | */ | |
187 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
188 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 189 | put_io_u(td, io_u); |
0c6e7517 JA |
190 | } else { |
191 | r = td->io_ops->cancel(td, io_u); | |
192 | if (!r) | |
193 | put_io_u(td, io_u); | |
194 | } | |
ebac4655 JA |
195 | } |
196 | } | |
197 | ||
97601024 | 198 | if (td->cur_depth) |
d7762cf8 | 199 | r = io_u_queued_complete(td, td->cur_depth); |
ebac4655 JA |
200 | } |
201 | ||
858a3d47 JA |
202 | /* |
203 | * Helper to handle the final sync of a file. Works just like the normal | |
204 | * io path, just does everything sync. | |
205 | */ | |
206 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
207 | { | |
208 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
209 | int ret; |
210 | ||
211 | if (!io_u) | |
212 | return 1; | |
213 | ||
214 | io_u->ddir = DDIR_SYNC; | |
215 | io_u->file = f; | |
216 | ||
217 | if (td_io_prep(td, io_u)) { | |
218 | put_io_u(td, io_u); | |
219 | return 1; | |
220 | } | |
221 | ||
755200a3 | 222 | requeue: |
858a3d47 | 223 | ret = td_io_queue(td, io_u); |
36167d82 | 224 | if (ret < 0) { |
e1161c32 | 225 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 226 | put_io_u(td, io_u); |
858a3d47 | 227 | return 1; |
36167d82 | 228 | } else if (ret == FIO_Q_QUEUED) { |
d7762cf8 | 229 | if (io_u_queued_complete(td, 1) < 0) |
36167d82 | 230 | return 1; |
36167d82 JA |
231 | } else if (ret == FIO_Q_COMPLETED) { |
232 | if (io_u->error) { | |
e1161c32 | 233 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
234 | return 1; |
235 | } | |
858a3d47 | 236 | |
d7762cf8 | 237 | if (io_u_sync_complete(td, io_u) < 0) |
b2fdda43 | 238 | return 1; |
755200a3 JA |
239 | } else if (ret == FIO_Q_BUSY) { |
240 | if (td_io_commit(td)) | |
241 | return 1; | |
242 | goto requeue; | |
858a3d47 JA |
243 | } |
244 | ||
245 | return 0; | |
246 | } | |
247 | ||
906c8d75 | 248 | /* |
34403fb1 | 249 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
250 | * reads the blocks back in, and checks the crc/md5 of the data. |
251 | */ | |
1e97cce9 | 252 | static void do_verify(struct thread_data *td) |
ebac4655 | 253 | { |
53cdc686 | 254 | struct fio_file *f; |
36167d82 | 255 | struct io_u *io_u; |
3af6ef39 | 256 | int ret, i, min_events; |
e5b401d4 JA |
257 | |
258 | /* | |
259 | * sync io first and invalidate cache, to make sure we really | |
260 | * read from disk. | |
261 | */ | |
262 | for_each_file(td, f, i) { | |
b2fdda43 JA |
263 | if (fio_io_sync(td, f)) |
264 | break; | |
265 | if (file_invalidate_cache(td, f)) | |
266 | break; | |
e5b401d4 | 267 | } |
ebac4655 | 268 | |
b2fdda43 JA |
269 | if (td->error) |
270 | return; | |
271 | ||
ebac4655 JA |
272 | td_set_runstate(td, TD_VERIFYING); |
273 | ||
36167d82 JA |
274 | io_u = NULL; |
275 | while (!td->terminate) { | |
5451792e JA |
276 | int ret2; |
277 | ||
ebac4655 JA |
278 | io_u = __get_io_u(td); |
279 | if (!io_u) | |
280 | break; | |
281 | ||
069c2918 JA |
282 | if (runtime_exceeded(td, &io_u->start_time)) { |
283 | put_io_u(td, io_u); | |
02bcaa8c | 284 | break; |
069c2918 | 285 | } |
02bcaa8c | 286 | |
069c2918 JA |
287 | if (get_next_verify(td, io_u)) { |
288 | put_io_u(td, io_u); | |
ebac4655 | 289 | break; |
069c2918 | 290 | } |
ebac4655 | 291 | |
069c2918 JA |
292 | if (td_io_prep(td, io_u)) { |
293 | put_io_u(td, io_u); | |
53cdc686 | 294 | break; |
069c2918 | 295 | } |
d7762cf8 JA |
296 | |
297 | io_u->end_io = verify_io_u; | |
53cdc686 | 298 | |
11786802 | 299 | ret = td_io_queue(td, io_u); |
36167d82 JA |
300 | switch (ret) { |
301 | case FIO_Q_COMPLETED: | |
302 | if (io_u->error) | |
22819ec2 | 303 | ret = -io_u->error; |
5451792e | 304 | else if (io_u->xfer_buflen != io_u->resid && io_u->resid) { |
36167d82 | 305 | int bytes = io_u->xfer_buflen - io_u->resid; |
ebac4655 | 306 | |
36167d82 JA |
307 | io_u->xfer_buflen = io_u->resid; |
308 | io_u->xfer_buf += bytes; | |
11786802 JA |
309 | requeue_io_u(td, &io_u); |
310 | } else { | |
311 | ret = io_u_sync_complete(td, io_u); | |
312 | if (ret < 0) | |
313 | break; | |
36167d82 | 314 | } |
36167d82 JA |
315 | continue; |
316 | case FIO_Q_QUEUED: | |
317 | break; | |
755200a3 JA |
318 | case FIO_Q_BUSY: |
319 | requeue_io_u(td, &io_u); | |
5451792e JA |
320 | ret2 = td_io_commit(td); |
321 | if (ret2 < 0) | |
322 | ret = ret2; | |
755200a3 | 323 | break; |
36167d82 JA |
324 | default: |
325 | assert(ret < 0); | |
e1161c32 | 326 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
327 | break; |
328 | } | |
329 | ||
99784632 | 330 | if (ret < 0 || td->error) |
3af6ef39 JA |
331 | break; |
332 | ||
ebac4655 | 333 | /* |
3af6ef39 JA |
334 | * if we can queue more, do so. but check if there are |
335 | * completed io_u's first. | |
ebac4655 | 336 | */ |
97601024 | 337 | min_events = 0; |
e916b390 | 338 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
3af6ef39 | 339 | min_events = 1; |
3af6ef39 | 340 | |
e916b390 JA |
341 | if (td->cur_depth > td->iodepth_low) |
342 | min_events = td->cur_depth - td->iodepth_low; | |
343 | } | |
344 | ||
3af6ef39 JA |
345 | /* |
346 | * Reap required number of io units, if any, and do the | |
347 | * verification on them through the callback handler | |
348 | */ | |
d7762cf8 | 349 | if (io_u_queued_complete(td, min_events) < 0) |
ebac4655 | 350 | break; |
36167d82 | 351 | } |
ebac4655 | 352 | |
c01c0395 JA |
353 | if (!td->error) { |
354 | min_events = td->cur_depth; | |
355 | ||
356 | if (min_events) | |
357 | ret = io_u_queued_complete(td, min_events); | |
358 | } else | |
ebac4655 JA |
359 | cleanup_pending_aio(td); |
360 | ||
361 | td_set_runstate(td, TD_RUNNING); | |
362 | } | |
363 | ||
b990b5c0 JA |
364 | /* |
365 | * Not really an io thread, all it does is burn CPU cycles in the specified | |
366 | * manner. | |
367 | */ | |
368 | static void do_cpuio(struct thread_data *td) | |
369 | { | |
370 | struct timeval e; | |
371 | int split = 100 / td->cpuload; | |
372 | int i = 0; | |
373 | ||
374 | while (!td->terminate) { | |
02bcaa8c | 375 | fio_gettime(&e, NULL); |
b990b5c0 JA |
376 | |
377 | if (runtime_exceeded(td, &e)) | |
378 | break; | |
379 | ||
380 | if (!(i % split)) | |
381 | __usec_sleep(10000); | |
382 | else | |
383 | usec_sleep(td, 10000); | |
384 | ||
385 | i++; | |
386 | } | |
387 | } | |
388 | ||
32cd46a0 | 389 | /* |
906c8d75 | 390 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
391 | * and reaps them, checking for rate and errors along the way. |
392 | */ | |
ebac4655 JA |
393 | static void do_io(struct thread_data *td) |
394 | { | |
02bcaa8c | 395 | struct timeval s; |
ebac4655 | 396 | unsigned long usec; |
84585003 | 397 | int i, ret = 0; |
ebac4655 | 398 | |
5853e5a8 JA |
399 | td_set_runstate(td, TD_RUNNING); |
400 | ||
3951414d | 401 | while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->io_size) { |
97601024 JA |
402 | struct timeval comp_time; |
403 | long bytes_done = 0; | |
84585003 | 404 | int min_evts = 0; |
ebac4655 | 405 | struct io_u *io_u; |
5451792e | 406 | int ret2; |
ebac4655 JA |
407 | |
408 | if (td->terminate) | |
409 | break; | |
410 | ||
3d7c391d | 411 | io_u = get_io_u(td); |
ebac4655 JA |
412 | if (!io_u) |
413 | break; | |
414 | ||
415 | memcpy(&s, &io_u->start_time, sizeof(s)); | |
97601024 JA |
416 | |
417 | if (runtime_exceeded(td, &s)) { | |
418 | put_io_u(td, io_u); | |
419 | break; | |
420 | } | |
36167d82 | 421 | |
11786802 | 422 | ret = td_io_queue(td, io_u); |
36167d82 JA |
423 | switch (ret) { |
424 | case FIO_Q_COMPLETED: | |
5451792e JA |
425 | if (io_u->error) |
426 | ret = -io_u->error; | |
427 | else if (io_u->xfer_buflen != io_u->resid && io_u->resid) { | |
36167d82 JA |
428 | int bytes = io_u->xfer_buflen - io_u->resid; |
429 | ||
cec6b55d | 430 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 431 | io_u->xfer_buf += bytes; |
11786802 JA |
432 | requeue_io_u(td, &io_u); |
433 | } else { | |
434 | fio_gettime(&comp_time, NULL); | |
435 | bytes_done = io_u_sync_complete(td, io_u); | |
436 | if (bytes_done < 0) | |
437 | ret = bytes_done; | |
cec6b55d | 438 | } |
36167d82 JA |
439 | break; |
440 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
441 | /* |
442 | * if the engine doesn't have a commit hook, | |
443 | * the io_u is really queued. if it does have such | |
444 | * a hook, it has to call io_u_queued() itself. | |
445 | */ | |
446 | if (td->io_ops->commit == NULL) | |
447 | io_u_queued(td, io_u); | |
36167d82 | 448 | break; |
755200a3 JA |
449 | case FIO_Q_BUSY: |
450 | requeue_io_u(td, &io_u); | |
5451792e JA |
451 | ret2 = td_io_commit(td); |
452 | if (ret2 < 0) | |
453 | ret = ret2; | |
755200a3 | 454 | break; |
36167d82 JA |
455 | default: |
456 | assert(ret < 0); | |
457 | put_io_u(td, io_u); | |
458 | break; | |
ebac4655 JA |
459 | } |
460 | ||
99784632 | 461 | if (ret < 0 || td->error) |
36167d82 JA |
462 | break; |
463 | ||
97601024 JA |
464 | /* |
465 | * See if we need to complete some commands | |
466 | */ | |
755200a3 | 467 | if (ret == FIO_Q_QUEUED || ret == FIO_Q_BUSY) { |
97601024 | 468 | min_evts = 0; |
e916b390 | 469 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
36167d82 | 470 | min_evts = 1; |
ebac4655 | 471 | |
e916b390 JA |
472 | if (td->cur_depth > td->iodepth_low) |
473 | min_evts = td->cur_depth - td->iodepth_low; | |
474 | } | |
475 | ||
97601024 | 476 | fio_gettime(&comp_time, NULL); |
d7762cf8 | 477 | bytes_done = io_u_queued_complete(td, min_evts); |
97601024 | 478 | if (bytes_done < 0) |
36167d82 | 479 | break; |
ebac4655 JA |
480 | } |
481 | ||
97601024 JA |
482 | if (!bytes_done) |
483 | continue; | |
484 | ||
ebac4655 JA |
485 | /* |
486 | * the rate is batched for now, it should work for batches | |
487 | * of completions except the very first one which may look | |
488 | * a little bursty | |
489 | */ | |
97601024 | 490 | usec = utime_since(&s, &comp_time); |
ebac4655 | 491 | |
413dd459 | 492 | rate_throttle(td, usec, bytes_done); |
ebac4655 | 493 | |
97601024 | 494 | if (check_min_rate(td, &comp_time)) { |
98aa62d8 | 495 | if (exitall_on_terminate) |
390c40e2 | 496 | terminate_threads(td->groupid); |
e1161c32 | 497 | td_verror(td, ENODATA, "check_min_rate"); |
ebac4655 JA |
498 | break; |
499 | } | |
500 | ||
9c1f7434 JA |
501 | if (td->thinktime) { |
502 | unsigned long long b; | |
503 | ||
504 | b = td->io_blocks[0] + td->io_blocks[1]; | |
48097d5c JA |
505 | if (!(b % td->thinktime_blocks)) { |
506 | int left; | |
507 | ||
508 | if (td->thinktime_spin) | |
509 | __usec_sleep(td->thinktime_spin); | |
510 | ||
511 | left = td->thinktime - td->thinktime_spin; | |
512 | if (left) | |
513 | usec_sleep(td, left); | |
514 | } | |
9c1f7434 | 515 | } |
ebac4655 JA |
516 | } |
517 | ||
4d2413c6 | 518 | if (!td->error) { |
3d7c391d JA |
519 | struct fio_file *f; |
520 | ||
c01c0395 JA |
521 | i = td->cur_depth; |
522 | if (i) | |
523 | ret = io_u_queued_complete(td, i); | |
ebac4655 | 524 | |
84585003 JA |
525 | if (should_fsync(td) && td->end_fsync) { |
526 | td_set_runstate(td, TD_FSYNCING); | |
527 | for_each_file(td, f, i) | |
858a3d47 | 528 | fio_io_sync(td, f); |
84585003 | 529 | } |
c01c0395 JA |
530 | } else |
531 | cleanup_pending_aio(td); | |
ebac4655 JA |
532 | } |
533 | ||
ebac4655 JA |
534 | static void cleanup_io_u(struct thread_data *td) |
535 | { | |
536 | struct list_head *entry, *n; | |
537 | struct io_u *io_u; | |
538 | ||
539 | list_for_each_safe(entry, n, &td->io_u_freelist) { | |
540 | io_u = list_entry(entry, struct io_u, list); | |
541 | ||
542 | list_del(&io_u->list); | |
543 | free(io_u); | |
544 | } | |
545 | ||
2f9ade3c | 546 | free_io_mem(td); |
ebac4655 JA |
547 | } |
548 | ||
6b9cea23 JA |
549 | /* |
550 | * "randomly" fill the buffer contents | |
551 | */ | |
66eeb296 | 552 | static void fill_rand_buf(struct io_u *io_u, int max_bs) |
6b9cea23 | 553 | { |
66eeb296 | 554 | int *ptr = io_u->buf; |
6b9cea23 JA |
555 | |
556 | while ((void *) ptr - io_u->buf < max_bs) { | |
557 | *ptr = rand() * 0x9e370001; | |
558 | ptr++; | |
559 | } | |
560 | } | |
561 | ||
ebac4655 JA |
562 | static int init_io_u(struct thread_data *td) |
563 | { | |
564 | struct io_u *io_u; | |
a00735e6 | 565 | unsigned int max_bs; |
ebac4655 JA |
566 | int i, max_units; |
567 | char *p; | |
568 | ||
2866c82d | 569 | if (td->io_ops->flags & FIO_CPUIO) |
b990b5c0 JA |
570 | return 0; |
571 | ||
2866c82d | 572 | if (td->io_ops->flags & FIO_SYNCIO) |
ebac4655 JA |
573 | max_units = 1; |
574 | else | |
575 | max_units = td->iodepth; | |
576 | ||
a00735e6 | 577 | max_bs = max(td->max_bs[DDIR_READ], td->max_bs[DDIR_WRITE]); |
74b025b0 JA |
578 | td->orig_buffer_size = max_bs * max_units; |
579 | ||
d0bdaf49 | 580 | if (td->mem_type == MEM_SHMHUGE || td->mem_type == MEM_MMAPHUGE) |
56bb17f2 | 581 | td->orig_buffer_size = (td->orig_buffer_size + td->hugepage_size - 1) & ~(td->hugepage_size - 1); |
74b025b0 | 582 | else |
29d610e1 | 583 | td->orig_buffer_size += page_mask; |
ebac4655 | 584 | |
2f9ade3c JA |
585 | if (allocate_io_mem(td)) |
586 | return 1; | |
ebac4655 | 587 | |
ebac4655 JA |
588 | p = ALIGN(td->orig_buffer); |
589 | for (i = 0; i < max_units; i++) { | |
590 | io_u = malloc(sizeof(*io_u)); | |
591 | memset(io_u, 0, sizeof(*io_u)); | |
592 | INIT_LIST_HEAD(&io_u->list); | |
593 | ||
a00735e6 | 594 | io_u->buf = p + max_bs * i; |
6b9cea23 | 595 | if (td_write(td) || td_rw(td)) |
a00735e6 | 596 | fill_rand_buf(io_u, max_bs); |
6b9cea23 | 597 | |
b1ff3403 | 598 | io_u->index = i; |
0c6e7517 | 599 | io_u->flags = IO_U_F_FREE; |
ebac4655 JA |
600 | list_add(&io_u->list, &td->io_u_freelist); |
601 | } | |
602 | ||
433afcb4 JA |
603 | io_u_init_timeout(); |
604 | ||
ebac4655 JA |
605 | return 0; |
606 | } | |
607 | ||
da86774e JA |
608 | static int switch_ioscheduler(struct thread_data *td) |
609 | { | |
610 | char tmp[256], tmp2[128]; | |
611 | FILE *f; | |
612 | int ret; | |
613 | ||
f48b467c JA |
614 | if (td->io_ops->flags & FIO_CPUIO) |
615 | return 0; | |
616 | ||
da86774e JA |
617 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
618 | ||
619 | f = fopen(tmp, "r+"); | |
620 | if (!f) { | |
e1161c32 | 621 | td_verror(td, errno, "fopen"); |
da86774e JA |
622 | return 1; |
623 | } | |
624 | ||
625 | /* | |
626 | * Set io scheduler. | |
627 | */ | |
628 | ret = fwrite(td->ioscheduler, strlen(td->ioscheduler), 1, f); | |
629 | if (ferror(f) || ret != 1) { | |
e1161c32 | 630 | td_verror(td, errno, "fwrite"); |
da86774e JA |
631 | fclose(f); |
632 | return 1; | |
633 | } | |
634 | ||
635 | rewind(f); | |
636 | ||
637 | /* | |
638 | * Read back and check that the selected scheduler is now the default. | |
639 | */ | |
640 | ret = fread(tmp, 1, sizeof(tmp), f); | |
641 | if (ferror(f) || ret < 0) { | |
e1161c32 | 642 | td_verror(td, errno, "fread"); |
da86774e JA |
643 | fclose(f); |
644 | return 1; | |
645 | } | |
646 | ||
647 | sprintf(tmp2, "[%s]", td->ioscheduler); | |
648 | if (!strstr(tmp, tmp2)) { | |
3b70d7e5 | 649 | log_err("fio: io scheduler %s not found\n", td->ioscheduler); |
e1161c32 | 650 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
651 | fclose(f); |
652 | return 1; | |
653 | } | |
654 | ||
655 | fclose(f); | |
656 | return 0; | |
657 | } | |
658 | ||
ebac4655 JA |
659 | static void clear_io_state(struct thread_data *td) |
660 | { | |
53cdc686 JA |
661 | struct fio_file *f; |
662 | int i; | |
ebac4655 | 663 | |
756867bd | 664 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 665 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 666 | td->zone_bytes = 0; |
ebac4655 | 667 | |
c1324df1 JA |
668 | td->last_was_sync = 0; |
669 | ||
53cdc686 | 670 | for_each_file(td, f, i) { |
c1324df1 JA |
671 | f->last_completed_pos = 0; |
672 | ||
53cdc686 JA |
673 | f->last_pos = 0; |
674 | if (td->io_ops->flags & FIO_SYNCIO) | |
675 | lseek(f->fd, SEEK_SET, 0); | |
676 | ||
677 | if (f->file_map) | |
678 | memset(f->file_map, 0, f->num_maps * sizeof(long)); | |
679 | } | |
ebac4655 JA |
680 | } |
681 | ||
906c8d75 JA |
682 | /* |
683 | * Entry point for the thread based jobs. The process based jobs end up | |
684 | * here as well, after a little setup. | |
685 | */ | |
ebac4655 JA |
686 | static void *thread_main(void *data) |
687 | { | |
69008999 | 688 | unsigned long long runtime[2]; |
ebac4655 | 689 | struct thread_data *td = data; |
ebac4655 JA |
690 | |
691 | if (!td->use_thread) | |
692 | setsid(); | |
693 | ||
694 | td->pid = getpid(); | |
695 | ||
aea47d44 JA |
696 | INIT_LIST_HEAD(&td->io_u_freelist); |
697 | INIT_LIST_HEAD(&td->io_u_busylist); | |
755200a3 | 698 | INIT_LIST_HEAD(&td->io_u_requeues); |
aea47d44 JA |
699 | INIT_LIST_HEAD(&td->io_hist_list); |
700 | INIT_LIST_HEAD(&td->io_log_list); | |
701 | ||
ebac4655 JA |
702 | if (init_io_u(td)) |
703 | goto err; | |
704 | ||
705 | if (fio_setaffinity(td) == -1) { | |
e1161c32 | 706 | td_verror(td, errno, "cpu_set_affinity"); |
ebac4655 JA |
707 | goto err; |
708 | } | |
709 | ||
aea47d44 JA |
710 | if (init_iolog(td)) |
711 | goto err; | |
712 | ||
ebac4655 JA |
713 | if (td->ioprio) { |
714 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { | |
e1161c32 | 715 | td_verror(td, errno, "ioprio_set"); |
ebac4655 JA |
716 | goto err; |
717 | } | |
718 | } | |
719 | ||
1056eaad | 720 | if (nice(td->nice) == -1) { |
e1161c32 | 721 | td_verror(td, errno, "nice"); |
b6f4d880 JA |
722 | goto err; |
723 | } | |
724 | ||
75154845 JA |
725 | if (init_random_state(td)) |
726 | goto err; | |
727 | ||
56f9498d JA |
728 | if (td->ioscheduler && switch_ioscheduler(td)) |
729 | goto err; | |
da86774e | 730 | |
75154845 | 731 | td_set_runstate(td, TD_INITIALIZED); |
bbfd6b00 JA |
732 | fio_sem_up(&startup_sem); |
733 | fio_sem_down(&td->mutex); | |
ebac4655 | 734 | |
53cdc686 | 735 | if (!td->create_serialize && setup_files(td)) |
ebac4655 JA |
736 | goto err; |
737 | ||
7d6c5283 JA |
738 | if (td_io_init(td)) |
739 | goto err; | |
740 | ||
b5af8293 JA |
741 | if (open_files(td)) |
742 | goto err; | |
743 | ||
69cfd7e0 JA |
744 | if (td->exec_prerun) { |
745 | if (system(td->exec_prerun) < 0) | |
746 | goto err; | |
747 | } | |
4e0ba8af | 748 | |
69008999 | 749 | fio_gettime(&td->epoch, NULL); |
433afcb4 | 750 | memcpy(&td->timeout_end, &td->epoch, sizeof(td->epoch)); |
756867bd | 751 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 JA |
752 | |
753 | runtime[0] = runtime[1] = 0; | |
ebac4655 | 754 | while (td->loops--) { |
02bcaa8c | 755 | fio_gettime(&td->start, NULL); |
756867bd | 756 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
ebac4655 JA |
757 | |
758 | if (td->ratemin) | |
756867bd | 759 | memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate)); |
ebac4655 JA |
760 | |
761 | clear_io_state(td); | |
762 | prune_io_piece_log(td); | |
763 | ||
2866c82d | 764 | if (td->io_ops->flags & FIO_CPUIO) |
b990b5c0 JA |
765 | do_cpuio(td); |
766 | else | |
767 | do_io(td); | |
ebac4655 | 768 | |
413dd459 JA |
769 | if (td_read(td) && td->io_bytes[DDIR_READ]) |
770 | runtime[DDIR_READ] += utime_since_now(&td->start); | |
771 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) | |
772 | runtime[DDIR_WRITE] += utime_since_now(&td->start); | |
773 | ||
ebac4655 JA |
774 | if (td->error || td->terminate) |
775 | break; | |
776 | ||
777 | if (td->verify == VERIFY_NONE) | |
778 | continue; | |
779 | ||
780 | clear_io_state(td); | |
02bcaa8c | 781 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
782 | |
783 | do_verify(td); | |
784 | ||
69008999 | 785 | runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
786 | |
787 | if (td->error || td->terminate) | |
788 | break; | |
789 | } | |
790 | ||
36dff966 | 791 | update_rusage_stat(td); |
756867bd JA |
792 | td->ts.runtime[0] = runtime[0] / 1000; |
793 | td->ts.runtime[1] = runtime[1] / 1000; | |
794 | td->ts.total_run_time = mtime_since_now(&td->epoch); | |
795 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
796 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
797 | ||
798 | if (td->ts.bw_log) | |
799 | finish_log(td, td->ts.bw_log, "bw"); | |
800 | if (td->ts.slat_log) | |
801 | finish_log(td, td->ts.slat_log, "slat"); | |
802 | if (td->ts.clat_log) | |
803 | finish_log(td, td->ts.clat_log, "clat"); | |
076efc7c | 804 | if (td->write_iolog_file) |
843a7413 | 805 | write_iolog_close(td); |
69cfd7e0 JA |
806 | if (td->exec_postrun) { |
807 | if (system(td->exec_postrun) < 0) | |
808 | log_err("fio: postrun %s failed\n", td->exec_postrun); | |
809 | } | |
ebac4655 JA |
810 | |
811 | if (exitall_on_terminate) | |
390c40e2 | 812 | terminate_threads(td->groupid); |
ebac4655 JA |
813 | |
814 | err: | |
5bf13a5a JA |
815 | if (td->error) |
816 | printf("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
53cdc686 | 817 | close_files(td); |
2866c82d | 818 | close_ioengine(td); |
ebac4655 | 819 | cleanup_io_u(td); |
ebac4655 | 820 | td_set_runstate(td, TD_EXITED); |
43d76807 | 821 | return (void *) (unsigned long) td->error; |
ebac4655 JA |
822 | } |
823 | ||
906c8d75 JA |
824 | /* |
825 | * We cannot pass the td data into a forked process, so attach the td and | |
826 | * pass it to the thread worker. | |
827 | */ | |
a6418147 | 828 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
829 | { |
830 | struct thread_data *td; | |
a6418147 | 831 | void *data, *ret; |
ebac4655 JA |
832 | |
833 | data = shmat(shmid, NULL, 0); | |
834 | if (data == (void *) -1) { | |
a6418147 JA |
835 | int __err = errno; |
836 | ||
ebac4655 | 837 | perror("shmat"); |
a6418147 | 838 | return __err; |
ebac4655 JA |
839 | } |
840 | ||
841 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 842 | ret = thread_main(td); |
ebac4655 | 843 | shmdt(data); |
43d76807 | 844 | return (int) (unsigned long) ret; |
ebac4655 JA |
845 | } |
846 | ||
906c8d75 JA |
847 | /* |
848 | * Run over the job map and reap the threads that have exited, if any. | |
849 | */ | |
ebac4655 JA |
850 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
851 | { | |
34572e28 | 852 | struct thread_data *td; |
fab6aa71 | 853 | int i, cputhreads, pending, status, ret; |
ebac4655 JA |
854 | |
855 | /* | |
856 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
857 | */ | |
4d2413c6 | 858 | pending = cputhreads = 0; |
34572e28 | 859 | for_each_td(td, i) { |
3707f45b | 860 | int flags = 0; |
a2f77c9f | 861 | |
84585003 JA |
862 | /* |
863 | * ->io_ops is NULL for a thread that has closed its | |
864 | * io engine | |
865 | */ | |
866 | if (td->io_ops && td->io_ops->flags & FIO_CPUIO) | |
b990b5c0 JA |
867 | cputhreads++; |
868 | ||
a2f77c9f JA |
869 | if (!td->pid || td->runstate == TD_REAPED) |
870 | continue; | |
3707f45b JA |
871 | if (td->use_thread) { |
872 | if (td->runstate == TD_EXITED) { | |
873 | td_set_runstate(td, TD_REAPED); | |
874 | goto reaped; | |
875 | } | |
876 | continue; | |
877 | } | |
a2f77c9f JA |
878 | |
879 | flags = WNOHANG; | |
880 | if (td->runstate == TD_EXITED) | |
881 | flags = 0; | |
882 | ||
883 | /* | |
884 | * check if someone quit or got killed in an unusual way | |
885 | */ | |
886 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 887 | if (ret < 0) { |
a2f77c9f JA |
888 | if (errno == ECHILD) { |
889 | log_err("fio: pid=%d disappeared %d\n", td->pid, td->runstate); | |
890 | td_set_runstate(td, TD_REAPED); | |
891 | goto reaped; | |
892 | } | |
893 | perror("waitpid"); | |
894 | } else if (ret == td->pid) { | |
895 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
896 | int sig = WTERMSIG(status); |
897 | ||
d9244941 JA |
898 | if (sig != SIGQUIT) |
899 | log_err("fio: pid=%d, got signal=%d\n", td->pid, sig); | |
fab6aa71 JA |
900 | td_set_runstate(td, TD_REAPED); |
901 | goto reaped; | |
902 | } | |
a2f77c9f JA |
903 | if (WIFEXITED(status)) { |
904 | if (WEXITSTATUS(status) && !td->error) | |
905 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 906 | |
a2f77c9f JA |
907 | td_set_runstate(td, TD_REAPED); |
908 | goto reaped; | |
a6418147 JA |
909 | } |
910 | } | |
ebac4655 | 911 | |
a2f77c9f JA |
912 | /* |
913 | * thread is not dead, continue | |
914 | */ | |
915 | continue; | |
fab6aa71 | 916 | reaped: |
3707f45b JA |
917 | if (td->use_thread) { |
918 | long ret; | |
919 | ||
920 | if (pthread_join(td->thread, (void *) &ret)) | |
921 | perror("pthread_join"); | |
922 | } | |
923 | ||
ebac4655 JA |
924 | (*nr_running)--; |
925 | (*m_rate) -= td->ratemin; | |
926 | (*t_rate) -= td->rate; | |
a2f77c9f JA |
927 | |
928 | if (td->error) | |
929 | exit_value++; | |
ebac4655 | 930 | } |
b990b5c0 | 931 | |
4d2413c6 | 932 | if (*nr_running == cputhreads && !pending) |
390c40e2 | 933 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
934 | } |
935 | ||
906c8d75 JA |
936 | /* |
937 | * Main function for kicking off and reaping jobs, as needed. | |
938 | */ | |
ebac4655 JA |
939 | static void run_threads(void) |
940 | { | |
ebac4655 JA |
941 | struct thread_data *td; |
942 | unsigned long spent; | |
943 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 944 | |
2f9ade3c JA |
945 | if (fio_pin_memory()) |
946 | return; | |
ebac4655 | 947 | |
c6ae0a5b JA |
948 | if (!terse_output) { |
949 | printf("Starting %d thread%s\n", thread_number, thread_number > 1 ? "s" : ""); | |
950 | fflush(stdout); | |
951 | } | |
c04f7ec3 | 952 | |
4efa970e JA |
953 | signal(SIGINT, sig_handler); |
954 | signal(SIGALRM, sig_handler); | |
955 | ||
ebac4655 JA |
956 | todo = thread_number; |
957 | nr_running = 0; | |
958 | nr_started = 0; | |
959 | m_rate = t_rate = 0; | |
960 | ||
34572e28 | 961 | for_each_td(td, i) { |
263e529f | 962 | print_status_init(td->thread_number - 1); |
ebac4655 | 963 | |
380cf265 JA |
964 | if (!td->create_serialize) { |
965 | init_disk_util(td); | |
ebac4655 | 966 | continue; |
380cf265 | 967 | } |
ebac4655 JA |
968 | |
969 | /* | |
970 | * do file setup here so it happens sequentially, | |
971 | * we don't want X number of threads getting their | |
972 | * client data interspersed on disk | |
973 | */ | |
53cdc686 | 974 | if (setup_files(td)) { |
5bf13a5a JA |
975 | exit_value++; |
976 | if (td->error) | |
977 | log_err("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
ebac4655 JA |
978 | td_set_runstate(td, TD_REAPED); |
979 | todo--; | |
980 | } | |
380cf265 JA |
981 | |
982 | init_disk_util(td); | |
ebac4655 JA |
983 | } |
984 | ||
a2f77c9f JA |
985 | set_genesis_time(); |
986 | ||
ebac4655 | 987 | while (todo) { |
75154845 JA |
988 | struct thread_data *map[MAX_JOBS]; |
989 | struct timeval this_start; | |
990 | int this_jobs = 0, left; | |
991 | ||
ebac4655 JA |
992 | /* |
993 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
994 | */ | |
34572e28 | 995 | for_each_td(td, i) { |
ebac4655 JA |
996 | if (td->runstate != TD_NOT_CREATED) |
997 | continue; | |
998 | ||
999 | /* | |
1000 | * never got a chance to start, killed by other | |
1001 | * thread for some reason | |
1002 | */ | |
1003 | if (td->terminate) { | |
1004 | todo--; | |
1005 | continue; | |
1006 | } | |
1007 | ||
1008 | if (td->start_delay) { | |
263e529f | 1009 | spent = mtime_since_genesis(); |
ebac4655 JA |
1010 | |
1011 | if (td->start_delay * 1000 > spent) | |
1012 | continue; | |
1013 | } | |
1014 | ||
1015 | if (td->stonewall && (nr_started || nr_running)) | |
1016 | break; | |
1017 | ||
75154845 JA |
1018 | /* |
1019 | * Set state to created. Thread will transition | |
1020 | * to TD_INITIALIZED when it's done setting up. | |
1021 | */ | |
ebac4655 | 1022 | td_set_runstate(td, TD_CREATED); |
75154845 | 1023 | map[this_jobs++] = td; |
bbfd6b00 | 1024 | fio_sem_init(&startup_sem, 1); |
ebac4655 JA |
1025 | nr_started++; |
1026 | ||
1027 | if (td->use_thread) { | |
1028 | if (pthread_create(&td->thread, NULL, thread_main, td)) { | |
1029 | perror("thread_create"); | |
1030 | nr_started--; | |
1031 | } | |
1032 | } else { | |
1033 | if (fork()) | |
bbfd6b00 | 1034 | fio_sem_down(&startup_sem); |
ebac4655 | 1035 | else { |
a6418147 JA |
1036 | int ret = fork_main(shm_id, i); |
1037 | ||
1038 | exit(ret); | |
ebac4655 JA |
1039 | } |
1040 | } | |
1041 | } | |
1042 | ||
1043 | /* | |
75154845 JA |
1044 | * Wait for the started threads to transition to |
1045 | * TD_INITIALIZED. | |
ebac4655 | 1046 | */ |
02bcaa8c | 1047 | fio_gettime(&this_start, NULL); |
75154845 | 1048 | left = this_jobs; |
6ce15a32 | 1049 | while (left && !fio_abort) { |
75154845 JA |
1050 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1051 | break; | |
1052 | ||
1053 | usleep(100000); | |
1054 | ||
1055 | for (i = 0; i < this_jobs; i++) { | |
1056 | td = map[i]; | |
1057 | if (!td) | |
1058 | continue; | |
b6f4d880 | 1059 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1060 | map[i] = NULL; |
1061 | left--; | |
b6f4d880 JA |
1062 | } else if (td->runstate >= TD_EXITED) { |
1063 | map[i] = NULL; | |
1064 | left--; | |
1065 | todo--; | |
1066 | nr_running++; /* work-around... */ | |
75154845 JA |
1067 | } |
1068 | } | |
1069 | } | |
1070 | ||
1071 | if (left) { | |
3b70d7e5 | 1072 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1073 | for (i = 0; i < this_jobs; i++) { |
1074 | td = map[i]; | |
1075 | if (!td) | |
1076 | continue; | |
1077 | kill(td->pid, SIGTERM); | |
1078 | } | |
1079 | break; | |
1080 | } | |
1081 | ||
1082 | /* | |
b6f4d880 | 1083 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1084 | */ |
34572e28 | 1085 | for_each_td(td, i) { |
75154845 | 1086 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1087 | continue; |
1088 | ||
1089 | td_set_runstate(td, TD_RUNNING); | |
1090 | nr_running++; | |
1091 | nr_started--; | |
1092 | m_rate += td->ratemin; | |
1093 | t_rate += td->rate; | |
75154845 | 1094 | todo--; |
bbfd6b00 | 1095 | fio_sem_up(&td->mutex); |
ebac4655 JA |
1096 | } |
1097 | ||
1098 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1099 | ||
1100 | if (todo) | |
1101 | usleep(100000); | |
1102 | } | |
1103 | ||
1104 | while (nr_running) { | |
1105 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1106 | usleep(10000); | |
1107 | } | |
1108 | ||
1109 | update_io_ticks(); | |
2f9ade3c | 1110 | fio_unpin_memory(); |
ebac4655 JA |
1111 | } |
1112 | ||
ebac4655 JA |
1113 | int main(int argc, char *argv[]) |
1114 | { | |
29d610e1 JA |
1115 | long ps; |
1116 | ||
dbe1125e JA |
1117 | /* |
1118 | * We need locale for number printing, if it isn't set then just | |
1119 | * go with the US format. | |
1120 | */ | |
1121 | if (!getenv("LC_NUMERIC")) | |
1122 | setlocale(LC_NUMERIC, "en_US"); | |
1123 | ||
ebac4655 JA |
1124 | if (parse_options(argc, argv)) |
1125 | return 1; | |
1126 | ||
1127 | if (!thread_number) { | |
3b70d7e5 | 1128 | log_err("Nothing to do\n"); |
ebac4655 JA |
1129 | return 1; |
1130 | } | |
1131 | ||
29d610e1 JA |
1132 | ps = sysconf(_SC_PAGESIZE); |
1133 | if (ps < 0) { | |
1134 | log_err("Failed to get page size\n"); | |
1135 | return 1; | |
1136 | } | |
1137 | ||
1138 | page_mask = ps - 1; | |
1139 | ||
bb3884d8 JA |
1140 | if (write_bw_log) { |
1141 | setup_log(&agg_io_log[DDIR_READ]); | |
1142 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1143 | } | |
1144 | ||
a2f77c9f JA |
1145 | set_genesis_time(); |
1146 | ||
ebac4655 JA |
1147 | disk_util_timer_arm(); |
1148 | ||
1149 | run_threads(); | |
6ce15a32 | 1150 | |
bb3884d8 | 1151 | if (!fio_abort) { |
6ce15a32 | 1152 | show_run_stats(); |
bb3884d8 JA |
1153 | if (write_bw_log) { |
1154 | __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log"); | |
1155 | __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log"); | |
1156 | } | |
1157 | } | |
ebac4655 | 1158 | |
437c9b71 | 1159 | return exit_value; |
ebac4655 | 1160 | } |