Commit | Line | Data |
---|---|---|
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; | |
9cedf167 JA |
46 | int nr_process = 0; |
47 | int nr_thread = 0; | |
ebac4655 | 48 | int shm_id = 0; |
53cdc686 | 49 | int temp_stall_ts; |
ebac4655 | 50 | |
07739b57 | 51 | static struct fio_sem *startup_sem; |
6ce15a32 | 52 | static volatile int fio_abort; |
437c9b71 | 53 | static int exit_value; |
ebac4655 | 54 | |
bb3884d8 JA |
55 | struct io_log *agg_io_log[2]; |
56 | ||
ebac4655 | 57 | #define TERMINATE_ALL (-1) |
75154845 | 58 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 | 59 | |
6ce15a32 JA |
60 | static inline void td_set_runstate(struct thread_data *td, int runstate) |
61 | { | |
62 | td->runstate = runstate; | |
63 | } | |
64 | ||
390c40e2 | 65 | static void terminate_threads(int group_id) |
ebac4655 | 66 | { |
34572e28 | 67 | struct thread_data *td; |
ebac4655 JA |
68 | int i; |
69 | ||
34572e28 | 70 | for_each_td(td, i) { |
ebac4655 | 71 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
c1302d44 JA |
72 | /* |
73 | * if the thread is running, just let it exit | |
74 | */ | |
75 | if (td->runstate < TD_RUNNING) | |
76 | kill(td->pid, SIGQUIT); | |
ebac4655 JA |
77 | td->terminate = 1; |
78 | td->start_delay = 0; | |
79 | } | |
80 | } | |
81 | } | |
82 | ||
83 | static void sig_handler(int sig) | |
84 | { | |
85 | switch (sig) { | |
86 | case SIGALRM: | |
87 | update_io_ticks(); | |
88 | disk_util_timer_arm(); | |
89 | print_thread_status(); | |
90 | break; | |
91 | default: | |
6ce15a32 | 92 | printf("\nfio: terminating on signal %d\n", sig); |
ebac4655 | 93 | fflush(stdout); |
390c40e2 | 94 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
95 | break; |
96 | } | |
97 | } | |
98 | ||
906c8d75 JA |
99 | /* |
100 | * Check if we are above the minimum rate given. | |
101 | */ | |
ebac4655 JA |
102 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
103 | { | |
0904200b | 104 | unsigned long long bytes = 0; |
ebac4655 JA |
105 | unsigned long spent; |
106 | unsigned long rate; | |
ebac4655 | 107 | |
780bf1a1 JA |
108 | /* |
109 | * No minimum rate set, always ok | |
110 | */ | |
111 | if (!td->ratemin) | |
112 | return 0; | |
113 | ||
ebac4655 JA |
114 | /* |
115 | * allow a 2 second settle period in the beginning | |
116 | */ | |
117 | if (mtime_since(&td->start, now) < 2000) | |
118 | return 0; | |
119 | ||
0904200b JA |
120 | if (td_read(td)) |
121 | bytes += td->this_io_bytes[DDIR_READ]; | |
122 | if (td_write(td)) | |
123 | bytes += td->this_io_bytes[DDIR_WRITE]; | |
124 | ||
ebac4655 JA |
125 | /* |
126 | * if rate blocks is set, sample is running | |
127 | */ | |
128 | if (td->rate_bytes) { | |
129 | spent = mtime_since(&td->lastrate, now); | |
130 | if (spent < td->ratecycle) | |
131 | return 0; | |
132 | ||
413dd459 JA |
133 | if (bytes < td->rate_bytes) { |
134 | fprintf(f_out, "%s: min rate %u not met\n", td->name, td->ratemin); | |
ebac4655 | 135 | return 1; |
413dd459 JA |
136 | } else { |
137 | rate = (bytes - td->rate_bytes) / spent; | |
138 | if (rate < td->ratemin || bytes < td->rate_bytes) { | |
139 | fprintf(f_out, "%s: min rate %u not met, got %luKiB/sec\n", td->name, td->ratemin, rate); | |
140 | return 1; | |
141 | } | |
ebac4655 JA |
142 | } |
143 | } | |
144 | ||
0904200b | 145 | td->rate_bytes = bytes; |
ebac4655 JA |
146 | memcpy(&td->lastrate, now, sizeof(*now)); |
147 | return 0; | |
148 | } | |
149 | ||
150 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
151 | { | |
152 | if (!td->timeout) | |
153 | return 0; | |
154 | if (mtime_since(&td->epoch, t) >= td->timeout * 1000) | |
155 | return 1; | |
156 | ||
157 | return 0; | |
158 | } | |
159 | ||
906c8d75 JA |
160 | /* |
161 | * When job exits, we can cancel the in-flight IO if we are using async | |
162 | * io. Attempt to do so. | |
163 | */ | |
ebac4655 JA |
164 | static void cleanup_pending_aio(struct thread_data *td) |
165 | { | |
ebac4655 | 166 | struct list_head *entry, *n; |
ebac4655 JA |
167 | struct io_u *io_u; |
168 | int r; | |
169 | ||
170 | /* | |
171 | * get immediately available events, if any | |
172 | */ | |
d7762cf8 | 173 | r = io_u_queued_complete(td, 0); |
b2fdda43 JA |
174 | if (r < 0) |
175 | return; | |
ebac4655 JA |
176 | |
177 | /* | |
178 | * now cancel remaining active events | |
179 | */ | |
2866c82d | 180 | if (td->io_ops->cancel) { |
ebac4655 JA |
181 | list_for_each_safe(entry, n, &td->io_u_busylist) { |
182 | io_u = list_entry(entry, struct io_u, list); | |
183 | ||
0c6e7517 JA |
184 | /* |
185 | * if the io_u isn't in flight, then that generally | |
186 | * means someone leaked an io_u. complain but fix | |
187 | * it up, so we don't stall here. | |
188 | */ | |
189 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
190 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 191 | put_io_u(td, io_u); |
0c6e7517 JA |
192 | } else { |
193 | r = td->io_ops->cancel(td, io_u); | |
194 | if (!r) | |
195 | put_io_u(td, io_u); | |
196 | } | |
ebac4655 JA |
197 | } |
198 | } | |
199 | ||
97601024 | 200 | if (td->cur_depth) |
d7762cf8 | 201 | r = io_u_queued_complete(td, td->cur_depth); |
ebac4655 JA |
202 | } |
203 | ||
858a3d47 JA |
204 | /* |
205 | * Helper to handle the final sync of a file. Works just like the normal | |
206 | * io path, just does everything sync. | |
207 | */ | |
208 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
209 | { | |
210 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
211 | int ret; |
212 | ||
213 | if (!io_u) | |
214 | return 1; | |
215 | ||
216 | io_u->ddir = DDIR_SYNC; | |
217 | io_u->file = f; | |
218 | ||
219 | if (td_io_prep(td, io_u)) { | |
220 | put_io_u(td, io_u); | |
221 | return 1; | |
222 | } | |
223 | ||
755200a3 | 224 | requeue: |
858a3d47 | 225 | ret = td_io_queue(td, io_u); |
36167d82 | 226 | if (ret < 0) { |
e1161c32 | 227 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 228 | put_io_u(td, io_u); |
858a3d47 | 229 | return 1; |
36167d82 | 230 | } else if (ret == FIO_Q_QUEUED) { |
d7762cf8 | 231 | if (io_u_queued_complete(td, 1) < 0) |
36167d82 | 232 | return 1; |
36167d82 JA |
233 | } else if (ret == FIO_Q_COMPLETED) { |
234 | if (io_u->error) { | |
e1161c32 | 235 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
236 | return 1; |
237 | } | |
858a3d47 | 238 | |
d7762cf8 | 239 | if (io_u_sync_complete(td, io_u) < 0) |
b2fdda43 | 240 | return 1; |
755200a3 JA |
241 | } else if (ret == FIO_Q_BUSY) { |
242 | if (td_io_commit(td)) | |
243 | return 1; | |
244 | goto requeue; | |
858a3d47 JA |
245 | } |
246 | ||
247 | return 0; | |
248 | } | |
249 | ||
906c8d75 | 250 | /* |
34403fb1 | 251 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
252 | * reads the blocks back in, and checks the crc/md5 of the data. |
253 | */ | |
1e97cce9 | 254 | static void do_verify(struct thread_data *td) |
ebac4655 | 255 | { |
53cdc686 | 256 | struct fio_file *f; |
36167d82 | 257 | struct io_u *io_u; |
af52b345 JA |
258 | int ret, min_events; |
259 | unsigned int i; | |
e5b401d4 JA |
260 | |
261 | /* | |
262 | * sync io first and invalidate cache, to make sure we really | |
263 | * read from disk. | |
264 | */ | |
265 | for_each_file(td, f, i) { | |
b2fdda43 JA |
266 | if (fio_io_sync(td, f)) |
267 | break; | |
268 | if (file_invalidate_cache(td, f)) | |
269 | break; | |
e5b401d4 | 270 | } |
ebac4655 | 271 | |
b2fdda43 JA |
272 | if (td->error) |
273 | return; | |
274 | ||
ebac4655 JA |
275 | td_set_runstate(td, TD_VERIFYING); |
276 | ||
36167d82 JA |
277 | io_u = NULL; |
278 | while (!td->terminate) { | |
5451792e JA |
279 | int ret2; |
280 | ||
ebac4655 JA |
281 | io_u = __get_io_u(td); |
282 | if (!io_u) | |
283 | break; | |
284 | ||
069c2918 JA |
285 | if (runtime_exceeded(td, &io_u->start_time)) { |
286 | put_io_u(td, io_u); | |
02bcaa8c | 287 | break; |
069c2918 | 288 | } |
02bcaa8c | 289 | |
069c2918 JA |
290 | if (get_next_verify(td, io_u)) { |
291 | put_io_u(td, io_u); | |
ebac4655 | 292 | break; |
069c2918 | 293 | } |
ebac4655 | 294 | |
069c2918 JA |
295 | if (td_io_prep(td, io_u)) { |
296 | put_io_u(td, io_u); | |
53cdc686 | 297 | break; |
069c2918 | 298 | } |
d7762cf8 JA |
299 | |
300 | io_u->end_io = verify_io_u; | |
53cdc686 | 301 | |
11786802 | 302 | ret = td_io_queue(td, io_u); |
36167d82 JA |
303 | switch (ret) { |
304 | case FIO_Q_COMPLETED: | |
305 | if (io_u->error) | |
22819ec2 | 306 | ret = -io_u->error; |
9e9d164e | 307 | else if (io_u->resid) { |
36167d82 | 308 | int bytes = io_u->xfer_buflen - io_u->resid; |
ebac4655 | 309 | |
9e9d164e JA |
310 | /* |
311 | * zero read, fail | |
312 | */ | |
313 | if (!bytes) { | |
314 | td_verror(td, ENODATA, "full resid"); | |
315 | put_io_u(td, io_u); | |
316 | break; | |
317 | } | |
36167d82 JA |
318 | io_u->xfer_buflen = io_u->resid; |
319 | io_u->xfer_buf += bytes; | |
11786802 JA |
320 | requeue_io_u(td, &io_u); |
321 | } else { | |
322 | ret = io_u_sync_complete(td, io_u); | |
323 | if (ret < 0) | |
324 | break; | |
36167d82 | 325 | } |
36167d82 JA |
326 | continue; |
327 | case FIO_Q_QUEUED: | |
328 | break; | |
755200a3 JA |
329 | case FIO_Q_BUSY: |
330 | requeue_io_u(td, &io_u); | |
5451792e JA |
331 | ret2 = td_io_commit(td); |
332 | if (ret2 < 0) | |
333 | ret = ret2; | |
755200a3 | 334 | break; |
36167d82 JA |
335 | default: |
336 | assert(ret < 0); | |
e1161c32 | 337 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
338 | break; |
339 | } | |
340 | ||
99784632 | 341 | if (ret < 0 || td->error) |
3af6ef39 JA |
342 | break; |
343 | ||
ebac4655 | 344 | /* |
3af6ef39 JA |
345 | * if we can queue more, do so. but check if there are |
346 | * completed io_u's first. | |
ebac4655 | 347 | */ |
97601024 | 348 | min_events = 0; |
e916b390 | 349 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
3af6ef39 | 350 | min_events = 1; |
3af6ef39 | 351 | |
e916b390 JA |
352 | if (td->cur_depth > td->iodepth_low) |
353 | min_events = td->cur_depth - td->iodepth_low; | |
354 | } | |
355 | ||
3af6ef39 JA |
356 | /* |
357 | * Reap required number of io units, if any, and do the | |
358 | * verification on them through the callback handler | |
359 | */ | |
d7762cf8 | 360 | if (io_u_queued_complete(td, min_events) < 0) |
ebac4655 | 361 | break; |
36167d82 | 362 | } |
ebac4655 | 363 | |
c01c0395 JA |
364 | if (!td->error) { |
365 | min_events = td->cur_depth; | |
366 | ||
367 | if (min_events) | |
368 | ret = io_u_queued_complete(td, min_events); | |
369 | } else | |
ebac4655 JA |
370 | cleanup_pending_aio(td); |
371 | ||
372 | td_set_runstate(td, TD_RUNNING); | |
373 | } | |
374 | ||
32cd46a0 | 375 | /* |
906c8d75 | 376 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
377 | * and reaps them, checking for rate and errors along the way. |
378 | */ | |
ebac4655 JA |
379 | static void do_io(struct thread_data *td) |
380 | { | |
02bcaa8c | 381 | struct timeval s; |
ebac4655 | 382 | unsigned long usec; |
af52b345 JA |
383 | unsigned int i; |
384 | int ret = 0; | |
ebac4655 | 385 | |
5853e5a8 JA |
386 | td_set_runstate(td, TD_RUNNING); |
387 | ||
3951414d | 388 | while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->io_size) { |
97601024 JA |
389 | struct timeval comp_time; |
390 | long bytes_done = 0; | |
84585003 | 391 | int min_evts = 0; |
ebac4655 | 392 | struct io_u *io_u; |
5451792e | 393 | int ret2; |
ebac4655 JA |
394 | |
395 | if (td->terminate) | |
396 | break; | |
397 | ||
3d7c391d | 398 | io_u = get_io_u(td); |
ebac4655 JA |
399 | if (!io_u) |
400 | break; | |
401 | ||
402 | memcpy(&s, &io_u->start_time, sizeof(s)); | |
97601024 JA |
403 | |
404 | if (runtime_exceeded(td, &s)) { | |
405 | put_io_u(td, io_u); | |
406 | break; | |
407 | } | |
36167d82 | 408 | |
11786802 | 409 | ret = td_io_queue(td, io_u); |
36167d82 JA |
410 | switch (ret) { |
411 | case FIO_Q_COMPLETED: | |
5451792e JA |
412 | if (io_u->error) |
413 | ret = -io_u->error; | |
9e9d164e | 414 | else if (io_u->resid) { |
36167d82 JA |
415 | int bytes = io_u->xfer_buflen - io_u->resid; |
416 | ||
9e9d164e JA |
417 | /* |
418 | * zero read, fail | |
419 | */ | |
420 | if (!bytes) { | |
421 | td_verror(td, ENODATA, "full resid"); | |
422 | put_io_u(td, io_u); | |
423 | break; | |
424 | } | |
425 | ||
cec6b55d | 426 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 427 | io_u->xfer_buf += bytes; |
11786802 JA |
428 | requeue_io_u(td, &io_u); |
429 | } else { | |
430 | fio_gettime(&comp_time, NULL); | |
431 | bytes_done = io_u_sync_complete(td, io_u); | |
432 | if (bytes_done < 0) | |
433 | ret = bytes_done; | |
cec6b55d | 434 | } |
36167d82 JA |
435 | break; |
436 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
437 | /* |
438 | * if the engine doesn't have a commit hook, | |
439 | * the io_u is really queued. if it does have such | |
440 | * a hook, it has to call io_u_queued() itself. | |
441 | */ | |
442 | if (td->io_ops->commit == NULL) | |
443 | io_u_queued(td, io_u); | |
36167d82 | 444 | break; |
755200a3 JA |
445 | case FIO_Q_BUSY: |
446 | requeue_io_u(td, &io_u); | |
5451792e JA |
447 | ret2 = td_io_commit(td); |
448 | if (ret2 < 0) | |
449 | ret = ret2; | |
755200a3 | 450 | break; |
36167d82 JA |
451 | default: |
452 | assert(ret < 0); | |
453 | put_io_u(td, io_u); | |
454 | break; | |
ebac4655 JA |
455 | } |
456 | ||
99784632 | 457 | if (ret < 0 || td->error) |
36167d82 JA |
458 | break; |
459 | ||
97601024 JA |
460 | /* |
461 | * See if we need to complete some commands | |
462 | */ | |
755200a3 | 463 | if (ret == FIO_Q_QUEUED || ret == FIO_Q_BUSY) { |
97601024 | 464 | min_evts = 0; |
e916b390 | 465 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
36167d82 | 466 | min_evts = 1; |
ebac4655 | 467 | |
e916b390 JA |
468 | if (td->cur_depth > td->iodepth_low) |
469 | min_evts = td->cur_depth - td->iodepth_low; | |
470 | } | |
471 | ||
97601024 | 472 | fio_gettime(&comp_time, NULL); |
d7762cf8 | 473 | bytes_done = io_u_queued_complete(td, min_evts); |
97601024 | 474 | if (bytes_done < 0) |
36167d82 | 475 | break; |
ebac4655 JA |
476 | } |
477 | ||
97601024 JA |
478 | if (!bytes_done) |
479 | continue; | |
480 | ||
ebac4655 JA |
481 | /* |
482 | * the rate is batched for now, it should work for batches | |
483 | * of completions except the very first one which may look | |
484 | * a little bursty | |
485 | */ | |
97601024 | 486 | usec = utime_since(&s, &comp_time); |
ebac4655 | 487 | |
413dd459 | 488 | rate_throttle(td, usec, bytes_done); |
ebac4655 | 489 | |
97601024 | 490 | if (check_min_rate(td, &comp_time)) { |
98aa62d8 | 491 | if (exitall_on_terminate) |
390c40e2 | 492 | terminate_threads(td->groupid); |
e1161c32 | 493 | td_verror(td, ENODATA, "check_min_rate"); |
ebac4655 JA |
494 | break; |
495 | } | |
496 | ||
9c1f7434 JA |
497 | if (td->thinktime) { |
498 | unsigned long long b; | |
499 | ||
500 | b = td->io_blocks[0] + td->io_blocks[1]; | |
48097d5c JA |
501 | if (!(b % td->thinktime_blocks)) { |
502 | int left; | |
503 | ||
504 | if (td->thinktime_spin) | |
505 | __usec_sleep(td->thinktime_spin); | |
506 | ||
507 | left = td->thinktime - td->thinktime_spin; | |
508 | if (left) | |
509 | usec_sleep(td, left); | |
510 | } | |
9c1f7434 | 511 | } |
ebac4655 JA |
512 | } |
513 | ||
4d2413c6 | 514 | if (!td->error) { |
3d7c391d JA |
515 | struct fio_file *f; |
516 | ||
c01c0395 JA |
517 | i = td->cur_depth; |
518 | if (i) | |
519 | ret = io_u_queued_complete(td, i); | |
ebac4655 | 520 | |
84585003 JA |
521 | if (should_fsync(td) && td->end_fsync) { |
522 | td_set_runstate(td, TD_FSYNCING); | |
523 | for_each_file(td, f, i) | |
858a3d47 | 524 | fio_io_sync(td, f); |
84585003 | 525 | } |
c01c0395 JA |
526 | } else |
527 | cleanup_pending_aio(td); | |
ebac4655 JA |
528 | } |
529 | ||
ebac4655 JA |
530 | static void cleanup_io_u(struct thread_data *td) |
531 | { | |
532 | struct list_head *entry, *n; | |
533 | struct io_u *io_u; | |
534 | ||
535 | list_for_each_safe(entry, n, &td->io_u_freelist) { | |
536 | io_u = list_entry(entry, struct io_u, list); | |
537 | ||
538 | list_del(&io_u->list); | |
539 | free(io_u); | |
540 | } | |
541 | ||
2f9ade3c | 542 | free_io_mem(td); |
ebac4655 JA |
543 | } |
544 | ||
6b9cea23 JA |
545 | /* |
546 | * "randomly" fill the buffer contents | |
547 | */ | |
66eeb296 | 548 | static void fill_rand_buf(struct io_u *io_u, int max_bs) |
6b9cea23 | 549 | { |
66eeb296 | 550 | int *ptr = io_u->buf; |
6b9cea23 JA |
551 | |
552 | while ((void *) ptr - io_u->buf < max_bs) { | |
553 | *ptr = rand() * 0x9e370001; | |
554 | ptr++; | |
555 | } | |
556 | } | |
557 | ||
ebac4655 JA |
558 | static int init_io_u(struct thread_data *td) |
559 | { | |
560 | struct io_u *io_u; | |
a00735e6 | 561 | unsigned int max_bs; |
ebac4655 JA |
562 | int i, max_units; |
563 | char *p; | |
564 | ||
2866c82d | 565 | if (td->io_ops->flags & FIO_SYNCIO) |
ebac4655 JA |
566 | max_units = 1; |
567 | else | |
568 | max_units = td->iodepth; | |
569 | ||
a00735e6 | 570 | max_bs = max(td->max_bs[DDIR_READ], td->max_bs[DDIR_WRITE]); |
74b025b0 JA |
571 | td->orig_buffer_size = max_bs * max_units; |
572 | ||
d0bdaf49 | 573 | if (td->mem_type == MEM_SHMHUGE || td->mem_type == MEM_MMAPHUGE) |
56bb17f2 | 574 | td->orig_buffer_size = (td->orig_buffer_size + td->hugepage_size - 1) & ~(td->hugepage_size - 1); |
74b025b0 | 575 | else |
29d610e1 | 576 | td->orig_buffer_size += page_mask; |
ebac4655 | 577 | |
2f9ade3c JA |
578 | if (allocate_io_mem(td)) |
579 | return 1; | |
ebac4655 | 580 | |
ebac4655 JA |
581 | p = ALIGN(td->orig_buffer); |
582 | for (i = 0; i < max_units; i++) { | |
583 | io_u = malloc(sizeof(*io_u)); | |
584 | memset(io_u, 0, sizeof(*io_u)); | |
585 | INIT_LIST_HEAD(&io_u->list); | |
586 | ||
a00735e6 | 587 | io_u->buf = p + max_bs * i; |
6b9cea23 | 588 | if (td_write(td) || td_rw(td)) |
a00735e6 | 589 | fill_rand_buf(io_u, max_bs); |
6b9cea23 | 590 | |
b1ff3403 | 591 | io_u->index = i; |
0c6e7517 | 592 | io_u->flags = IO_U_F_FREE; |
ebac4655 JA |
593 | list_add(&io_u->list, &td->io_u_freelist); |
594 | } | |
595 | ||
433afcb4 JA |
596 | io_u_init_timeout(); |
597 | ||
ebac4655 JA |
598 | return 0; |
599 | } | |
600 | ||
da86774e JA |
601 | static int switch_ioscheduler(struct thread_data *td) |
602 | { | |
603 | char tmp[256], tmp2[128]; | |
604 | FILE *f; | |
605 | int ret; | |
606 | ||
ba0fbe10 | 607 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
608 | return 0; |
609 | ||
da86774e JA |
610 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
611 | ||
612 | f = fopen(tmp, "r+"); | |
613 | if (!f) { | |
e1161c32 | 614 | td_verror(td, errno, "fopen"); |
da86774e JA |
615 | return 1; |
616 | } | |
617 | ||
618 | /* | |
619 | * Set io scheduler. | |
620 | */ | |
621 | ret = fwrite(td->ioscheduler, strlen(td->ioscheduler), 1, f); | |
622 | if (ferror(f) || ret != 1) { | |
e1161c32 | 623 | td_verror(td, errno, "fwrite"); |
da86774e JA |
624 | fclose(f); |
625 | return 1; | |
626 | } | |
627 | ||
628 | rewind(f); | |
629 | ||
630 | /* | |
631 | * Read back and check that the selected scheduler is now the default. | |
632 | */ | |
633 | ret = fread(tmp, 1, sizeof(tmp), f); | |
634 | if (ferror(f) || ret < 0) { | |
e1161c32 | 635 | td_verror(td, errno, "fread"); |
da86774e JA |
636 | fclose(f); |
637 | return 1; | |
638 | } | |
639 | ||
640 | sprintf(tmp2, "[%s]", td->ioscheduler); | |
641 | if (!strstr(tmp, tmp2)) { | |
3b70d7e5 | 642 | log_err("fio: io scheduler %s not found\n", td->ioscheduler); |
e1161c32 | 643 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
644 | fclose(f); |
645 | return 1; | |
646 | } | |
647 | ||
648 | fclose(f); | |
649 | return 0; | |
650 | } | |
651 | ||
a978ba68 | 652 | static int clear_io_state(struct thread_data *td) |
ebac4655 | 653 | { |
53cdc686 | 654 | struct fio_file *f; |
af52b345 JA |
655 | unsigned int i; |
656 | int ret; | |
ebac4655 | 657 | |
756867bd | 658 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 659 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 660 | td->zone_bytes = 0; |
d7d3b49b | 661 | td->rate_bytes = 0; |
ebac4655 | 662 | |
c1324df1 JA |
663 | td->last_was_sync = 0; |
664 | ||
a978ba68 JA |
665 | for_each_file(td, f, i) |
666 | td_io_close_file(td, f); | |
53cdc686 | 667 | |
a978ba68 JA |
668 | ret = 0; |
669 | for_each_file(td, f, i) { | |
670 | ret = td_io_open_file(td, f); | |
671 | if (ret) | |
672 | break; | |
53cdc686 | 673 | } |
a978ba68 JA |
674 | |
675 | return ret; | |
ebac4655 JA |
676 | } |
677 | ||
906c8d75 JA |
678 | /* |
679 | * Entry point for the thread based jobs. The process based jobs end up | |
680 | * here as well, after a little setup. | |
681 | */ | |
ebac4655 JA |
682 | static void *thread_main(void *data) |
683 | { | |
69008999 | 684 | unsigned long long runtime[2]; |
ebac4655 | 685 | struct thread_data *td = data; |
a978ba68 | 686 | int clear_state; |
ebac4655 JA |
687 | |
688 | if (!td->use_thread) | |
689 | setsid(); | |
690 | ||
691 | td->pid = getpid(); | |
692 | ||
aea47d44 JA |
693 | INIT_LIST_HEAD(&td->io_u_freelist); |
694 | INIT_LIST_HEAD(&td->io_u_busylist); | |
755200a3 | 695 | INIT_LIST_HEAD(&td->io_u_requeues); |
aea47d44 JA |
696 | INIT_LIST_HEAD(&td->io_hist_list); |
697 | INIT_LIST_HEAD(&td->io_log_list); | |
698 | ||
ebac4655 | 699 | if (init_io_u(td)) |
bda4fd9e | 700 | goto err_sem; |
ebac4655 JA |
701 | |
702 | if (fio_setaffinity(td) == -1) { | |
e1161c32 | 703 | td_verror(td, errno, "cpu_set_affinity"); |
bda4fd9e | 704 | goto err_sem; |
ebac4655 JA |
705 | } |
706 | ||
aea47d44 | 707 | if (init_iolog(td)) |
bda4fd9e | 708 | goto err_sem; |
aea47d44 | 709 | |
ebac4655 JA |
710 | if (td->ioprio) { |
711 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { | |
e1161c32 | 712 | td_verror(td, errno, "ioprio_set"); |
bda4fd9e | 713 | goto err_sem; |
ebac4655 JA |
714 | } |
715 | } | |
716 | ||
1056eaad | 717 | if (nice(td->nice) == -1) { |
e1161c32 | 718 | td_verror(td, errno, "nice"); |
bda4fd9e | 719 | goto err_sem; |
b6f4d880 JA |
720 | } |
721 | ||
75154845 | 722 | if (init_random_state(td)) |
bda4fd9e | 723 | goto err_sem; |
75154845 | 724 | |
56f9498d | 725 | if (td->ioscheduler && switch_ioscheduler(td)) |
bda4fd9e | 726 | goto err_sem; |
da86774e | 727 | |
75154845 | 728 | td_set_runstate(td, TD_INITIALIZED); |
07739b57 JA |
729 | fio_sem_up(startup_sem); |
730 | fio_sem_down(td->mutex); | |
ebac4655 | 731 | |
37f56873 JA |
732 | /* |
733 | * the ->mutex semaphore is now no longer used, close it to avoid | |
734 | * eating a file descriptor | |
735 | */ | |
736 | fio_sem_remove(td->mutex); | |
737 | ||
53cdc686 | 738 | if (!td->create_serialize && setup_files(td)) |
ebac4655 JA |
739 | goto err; |
740 | ||
7d6c5283 JA |
741 | if (td_io_init(td)) |
742 | goto err; | |
743 | ||
b5af8293 JA |
744 | if (open_files(td)) |
745 | goto err; | |
746 | ||
69cfd7e0 JA |
747 | if (td->exec_prerun) { |
748 | if (system(td->exec_prerun) < 0) | |
749 | goto err; | |
750 | } | |
4e0ba8af | 751 | |
69008999 | 752 | fio_gettime(&td->epoch, NULL); |
433afcb4 | 753 | memcpy(&td->timeout_end, &td->epoch, sizeof(td->epoch)); |
756867bd | 754 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 JA |
755 | |
756 | runtime[0] = runtime[1] = 0; | |
a978ba68 | 757 | clear_state = 0; |
ebac4655 | 758 | while (td->loops--) { |
02bcaa8c | 759 | fio_gettime(&td->start, NULL); |
756867bd | 760 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
ebac4655 JA |
761 | |
762 | if (td->ratemin) | |
756867bd | 763 | memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate)); |
ebac4655 | 764 | |
a978ba68 JA |
765 | if (clear_state && clear_io_state(td)) |
766 | break; | |
767 | ||
ebac4655 JA |
768 | prune_io_piece_log(td); |
769 | ||
ba0fbe10 | 770 | do_io(td); |
ebac4655 | 771 | |
a978ba68 JA |
772 | clear_state = 1; |
773 | ||
413dd459 JA |
774 | if (td_read(td) && td->io_bytes[DDIR_READ]) |
775 | runtime[DDIR_READ] += utime_since_now(&td->start); | |
776 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) | |
777 | runtime[DDIR_WRITE] += utime_since_now(&td->start); | |
778 | ||
ebac4655 JA |
779 | if (td->error || td->terminate) |
780 | break; | |
781 | ||
782 | if (td->verify == VERIFY_NONE) | |
783 | continue; | |
784 | ||
a978ba68 JA |
785 | if (clear_io_state(td)) |
786 | break; | |
787 | ||
02bcaa8c | 788 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
789 | |
790 | do_verify(td); | |
791 | ||
69008999 | 792 | runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
793 | |
794 | if (td->error || td->terminate) | |
795 | break; | |
796 | } | |
797 | ||
36dff966 | 798 | update_rusage_stat(td); |
756867bd JA |
799 | td->ts.runtime[0] = runtime[0] / 1000; |
800 | td->ts.runtime[1] = runtime[1] / 1000; | |
801 | td->ts.total_run_time = mtime_since_now(&td->epoch); | |
802 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
803 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
804 | ||
805 | if (td->ts.bw_log) | |
806 | finish_log(td, td->ts.bw_log, "bw"); | |
807 | if (td->ts.slat_log) | |
808 | finish_log(td, td->ts.slat_log, "slat"); | |
809 | if (td->ts.clat_log) | |
810 | finish_log(td, td->ts.clat_log, "clat"); | |
076efc7c | 811 | if (td->write_iolog_file) |
843a7413 | 812 | write_iolog_close(td); |
69cfd7e0 JA |
813 | if (td->exec_postrun) { |
814 | if (system(td->exec_postrun) < 0) | |
815 | log_err("fio: postrun %s failed\n", td->exec_postrun); | |
816 | } | |
ebac4655 JA |
817 | |
818 | if (exitall_on_terminate) | |
390c40e2 | 819 | terminate_threads(td->groupid); |
ebac4655 JA |
820 | |
821 | err: | |
5bf13a5a JA |
822 | if (td->error) |
823 | printf("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
53cdc686 | 824 | close_files(td); |
2866c82d | 825 | close_ioengine(td); |
ebac4655 | 826 | cleanup_io_u(td); |
ebac4655 | 827 | td_set_runstate(td, TD_EXITED); |
43d76807 | 828 | return (void *) (unsigned long) td->error; |
bda4fd9e JA |
829 | err_sem: |
830 | fio_sem_up(startup_sem); | |
831 | goto err; | |
ebac4655 JA |
832 | } |
833 | ||
906c8d75 JA |
834 | /* |
835 | * We cannot pass the td data into a forked process, so attach the td and | |
836 | * pass it to the thread worker. | |
837 | */ | |
a6418147 | 838 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
839 | { |
840 | struct thread_data *td; | |
a6418147 | 841 | void *data, *ret; |
ebac4655 JA |
842 | |
843 | data = shmat(shmid, NULL, 0); | |
844 | if (data == (void *) -1) { | |
a6418147 JA |
845 | int __err = errno; |
846 | ||
ebac4655 | 847 | perror("shmat"); |
a6418147 | 848 | return __err; |
ebac4655 JA |
849 | } |
850 | ||
851 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 852 | ret = thread_main(td); |
ebac4655 | 853 | shmdt(data); |
43d76807 | 854 | return (int) (unsigned long) ret; |
ebac4655 JA |
855 | } |
856 | ||
906c8d75 JA |
857 | /* |
858 | * Run over the job map and reap the threads that have exited, if any. | |
859 | */ | |
ebac4655 JA |
860 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
861 | { | |
34572e28 | 862 | struct thread_data *td; |
fab6aa71 | 863 | int i, cputhreads, pending, status, ret; |
ebac4655 JA |
864 | |
865 | /* | |
866 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
867 | */ | |
4d2413c6 | 868 | pending = cputhreads = 0; |
34572e28 | 869 | for_each_td(td, i) { |
3707f45b | 870 | int flags = 0; |
a2f77c9f | 871 | |
84585003 JA |
872 | /* |
873 | * ->io_ops is NULL for a thread that has closed its | |
874 | * io engine | |
875 | */ | |
ba0fbe10 | 876 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 JA |
877 | cputhreads++; |
878 | ||
a2f77c9f JA |
879 | if (!td->pid || td->runstate == TD_REAPED) |
880 | continue; | |
3707f45b JA |
881 | if (td->use_thread) { |
882 | if (td->runstate == TD_EXITED) { | |
883 | td_set_runstate(td, TD_REAPED); | |
884 | goto reaped; | |
885 | } | |
886 | continue; | |
887 | } | |
a2f77c9f JA |
888 | |
889 | flags = WNOHANG; | |
890 | if (td->runstate == TD_EXITED) | |
891 | flags = 0; | |
892 | ||
893 | /* | |
894 | * check if someone quit or got killed in an unusual way | |
895 | */ | |
896 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 897 | if (ret < 0) { |
a2f77c9f JA |
898 | if (errno == ECHILD) { |
899 | log_err("fio: pid=%d disappeared %d\n", td->pid, td->runstate); | |
900 | td_set_runstate(td, TD_REAPED); | |
901 | goto reaped; | |
902 | } | |
903 | perror("waitpid"); | |
904 | } else if (ret == td->pid) { | |
905 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
906 | int sig = WTERMSIG(status); |
907 | ||
d9244941 JA |
908 | if (sig != SIGQUIT) |
909 | log_err("fio: pid=%d, got signal=%d\n", td->pid, sig); | |
fab6aa71 JA |
910 | td_set_runstate(td, TD_REAPED); |
911 | goto reaped; | |
912 | } | |
a2f77c9f JA |
913 | if (WIFEXITED(status)) { |
914 | if (WEXITSTATUS(status) && !td->error) | |
915 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 916 | |
a2f77c9f JA |
917 | td_set_runstate(td, TD_REAPED); |
918 | goto reaped; | |
a6418147 JA |
919 | } |
920 | } | |
ebac4655 | 921 | |
a2f77c9f JA |
922 | /* |
923 | * thread is not dead, continue | |
924 | */ | |
925 | continue; | |
fab6aa71 | 926 | reaped: |
3707f45b JA |
927 | if (td->use_thread) { |
928 | long ret; | |
929 | ||
930 | if (pthread_join(td->thread, (void *) &ret)) | |
931 | perror("pthread_join"); | |
932 | } | |
933 | ||
ebac4655 JA |
934 | (*nr_running)--; |
935 | (*m_rate) -= td->ratemin; | |
936 | (*t_rate) -= td->rate; | |
a2f77c9f JA |
937 | |
938 | if (td->error) | |
939 | exit_value++; | |
ebac4655 | 940 | } |
b990b5c0 | 941 | |
4d2413c6 | 942 | if (*nr_running == cputhreads && !pending) |
390c40e2 | 943 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
944 | } |
945 | ||
906c8d75 JA |
946 | /* |
947 | * Main function for kicking off and reaping jobs, as needed. | |
948 | */ | |
ebac4655 JA |
949 | static void run_threads(void) |
950 | { | |
ebac4655 JA |
951 | struct thread_data *td; |
952 | unsigned long spent; | |
953 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 954 | |
2f9ade3c JA |
955 | if (fio_pin_memory()) |
956 | return; | |
ebac4655 | 957 | |
c6ae0a5b | 958 | if (!terse_output) { |
9cedf167 JA |
959 | printf("Starting "); |
960 | if (nr_thread) | |
961 | printf("%d thread%s", nr_thread, nr_thread > 1 ? "s" : ""); | |
962 | if (nr_process) { | |
963 | if (nr_thread) | |
964 | printf(" and "); | |
965 | printf("%d process%s", nr_process, nr_process > 1 ? "es" : ""); | |
966 | } | |
967 | printf("\n"); | |
c6ae0a5b JA |
968 | fflush(stdout); |
969 | } | |
c04f7ec3 | 970 | |
4efa970e JA |
971 | signal(SIGINT, sig_handler); |
972 | signal(SIGALRM, sig_handler); | |
973 | ||
ebac4655 JA |
974 | todo = thread_number; |
975 | nr_running = 0; | |
976 | nr_started = 0; | |
977 | m_rate = t_rate = 0; | |
978 | ||
34572e28 | 979 | for_each_td(td, i) { |
263e529f | 980 | print_status_init(td->thread_number - 1); |
ebac4655 | 981 | |
380cf265 JA |
982 | if (!td->create_serialize) { |
983 | init_disk_util(td); | |
ebac4655 | 984 | continue; |
380cf265 | 985 | } |
ebac4655 JA |
986 | |
987 | /* | |
988 | * do file setup here so it happens sequentially, | |
989 | * we don't want X number of threads getting their | |
990 | * client data interspersed on disk | |
991 | */ | |
53cdc686 | 992 | if (setup_files(td)) { |
5bf13a5a JA |
993 | exit_value++; |
994 | if (td->error) | |
995 | log_err("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
ebac4655 JA |
996 | td_set_runstate(td, TD_REAPED); |
997 | todo--; | |
998 | } | |
380cf265 JA |
999 | |
1000 | init_disk_util(td); | |
ebac4655 JA |
1001 | } |
1002 | ||
a2f77c9f JA |
1003 | set_genesis_time(); |
1004 | ||
ebac4655 | 1005 | while (todo) { |
75154845 JA |
1006 | struct thread_data *map[MAX_JOBS]; |
1007 | struct timeval this_start; | |
1008 | int this_jobs = 0, left; | |
1009 | ||
ebac4655 JA |
1010 | /* |
1011 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1012 | */ | |
34572e28 | 1013 | for_each_td(td, i) { |
ebac4655 JA |
1014 | if (td->runstate != TD_NOT_CREATED) |
1015 | continue; | |
1016 | ||
1017 | /* | |
1018 | * never got a chance to start, killed by other | |
1019 | * thread for some reason | |
1020 | */ | |
1021 | if (td->terminate) { | |
1022 | todo--; | |
1023 | continue; | |
1024 | } | |
1025 | ||
1026 | if (td->start_delay) { | |
263e529f | 1027 | spent = mtime_since_genesis(); |
ebac4655 JA |
1028 | |
1029 | if (td->start_delay * 1000 > spent) | |
1030 | continue; | |
1031 | } | |
1032 | ||
1033 | if (td->stonewall && (nr_started || nr_running)) | |
1034 | break; | |
1035 | ||
75154845 JA |
1036 | /* |
1037 | * Set state to created. Thread will transition | |
1038 | * to TD_INITIALIZED when it's done setting up. | |
1039 | */ | |
ebac4655 | 1040 | td_set_runstate(td, TD_CREATED); |
75154845 | 1041 | map[this_jobs++] = td; |
ebac4655 JA |
1042 | nr_started++; |
1043 | ||
1044 | if (td->use_thread) { | |
1045 | if (pthread_create(&td->thread, NULL, thread_main, td)) { | |
1046 | perror("thread_create"); | |
1047 | nr_started--; | |
c8bb6faf | 1048 | break; |
ebac4655 JA |
1049 | } |
1050 | } else { | |
07739b57 | 1051 | if (!fork()) { |
a6418147 JA |
1052 | int ret = fork_main(shm_id, i); |
1053 | ||
1054 | exit(ret); | |
ebac4655 JA |
1055 | } |
1056 | } | |
07739b57 | 1057 | fio_sem_down(startup_sem); |
ebac4655 JA |
1058 | } |
1059 | ||
1060 | /* | |
75154845 JA |
1061 | * Wait for the started threads to transition to |
1062 | * TD_INITIALIZED. | |
ebac4655 | 1063 | */ |
02bcaa8c | 1064 | fio_gettime(&this_start, NULL); |
75154845 | 1065 | left = this_jobs; |
6ce15a32 | 1066 | while (left && !fio_abort) { |
75154845 JA |
1067 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1068 | break; | |
1069 | ||
1070 | usleep(100000); | |
1071 | ||
1072 | for (i = 0; i < this_jobs; i++) { | |
1073 | td = map[i]; | |
1074 | if (!td) | |
1075 | continue; | |
b6f4d880 | 1076 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1077 | map[i] = NULL; |
1078 | left--; | |
b6f4d880 JA |
1079 | } else if (td->runstate >= TD_EXITED) { |
1080 | map[i] = NULL; | |
1081 | left--; | |
1082 | todo--; | |
1083 | nr_running++; /* work-around... */ | |
75154845 JA |
1084 | } |
1085 | } | |
1086 | } | |
1087 | ||
1088 | if (left) { | |
3b70d7e5 | 1089 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1090 | for (i = 0; i < this_jobs; i++) { |
1091 | td = map[i]; | |
1092 | if (!td) | |
1093 | continue; | |
1094 | kill(td->pid, SIGTERM); | |
1095 | } | |
1096 | break; | |
1097 | } | |
1098 | ||
1099 | /* | |
b6f4d880 | 1100 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1101 | */ |
34572e28 | 1102 | for_each_td(td, i) { |
75154845 | 1103 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1104 | continue; |
1105 | ||
1106 | td_set_runstate(td, TD_RUNNING); | |
1107 | nr_running++; | |
1108 | nr_started--; | |
1109 | m_rate += td->ratemin; | |
1110 | t_rate += td->rate; | |
75154845 | 1111 | todo--; |
07739b57 | 1112 | fio_sem_up(td->mutex); |
ebac4655 JA |
1113 | } |
1114 | ||
1115 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1116 | ||
1117 | if (todo) | |
1118 | usleep(100000); | |
1119 | } | |
1120 | ||
1121 | while (nr_running) { | |
1122 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1123 | usleep(10000); | |
1124 | } | |
1125 | ||
1126 | update_io_ticks(); | |
2f9ade3c | 1127 | fio_unpin_memory(); |
ebac4655 JA |
1128 | } |
1129 | ||
ebac4655 JA |
1130 | int main(int argc, char *argv[]) |
1131 | { | |
29d610e1 JA |
1132 | long ps; |
1133 | ||
dbe1125e JA |
1134 | /* |
1135 | * We need locale for number printing, if it isn't set then just | |
1136 | * go with the US format. | |
1137 | */ | |
1138 | if (!getenv("LC_NUMERIC")) | |
1139 | setlocale(LC_NUMERIC, "en_US"); | |
1140 | ||
ebac4655 JA |
1141 | if (parse_options(argc, argv)) |
1142 | return 1; | |
1143 | ||
1144 | if (!thread_number) { | |
3b70d7e5 | 1145 | log_err("Nothing to do\n"); |
ebac4655 JA |
1146 | return 1; |
1147 | } | |
1148 | ||
29d610e1 JA |
1149 | ps = sysconf(_SC_PAGESIZE); |
1150 | if (ps < 0) { | |
1151 | log_err("Failed to get page size\n"); | |
1152 | return 1; | |
1153 | } | |
1154 | ||
1155 | page_mask = ps - 1; | |
1156 | ||
bb3884d8 JA |
1157 | if (write_bw_log) { |
1158 | setup_log(&agg_io_log[DDIR_READ]); | |
1159 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1160 | } | |
1161 | ||
07739b57 JA |
1162 | startup_sem = fio_sem_init(0); |
1163 | ||
a2f77c9f JA |
1164 | set_genesis_time(); |
1165 | ||
ebac4655 JA |
1166 | disk_util_timer_arm(); |
1167 | ||
1168 | run_threads(); | |
6ce15a32 | 1169 | |
bb3884d8 | 1170 | if (!fio_abort) { |
6ce15a32 | 1171 | show_run_stats(); |
bb3884d8 JA |
1172 | if (write_bw_log) { |
1173 | __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log"); | |
1174 | __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log"); | |
1175 | } | |
1176 | } | |
ebac4655 | 1177 | |
07739b57 | 1178 | fio_sem_remove(startup_sem); |
437c9b71 | 1179 | return exit_value; |
ebac4655 | 1180 | } |