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 | |
07739b57 | 49 | static struct fio_sem *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; |
9e9d164e | 304 | else if (io_u->resid) { |
36167d82 | 305 | int bytes = io_u->xfer_buflen - io_u->resid; |
ebac4655 | 306 | |
9e9d164e JA |
307 | /* |
308 | * zero read, fail | |
309 | */ | |
310 | if (!bytes) { | |
311 | td_verror(td, ENODATA, "full resid"); | |
312 | put_io_u(td, io_u); | |
313 | break; | |
314 | } | |
36167d82 JA |
315 | io_u->xfer_buflen = io_u->resid; |
316 | io_u->xfer_buf += bytes; | |
11786802 JA |
317 | requeue_io_u(td, &io_u); |
318 | } else { | |
319 | ret = io_u_sync_complete(td, io_u); | |
320 | if (ret < 0) | |
321 | break; | |
36167d82 | 322 | } |
36167d82 JA |
323 | continue; |
324 | case FIO_Q_QUEUED: | |
325 | break; | |
755200a3 JA |
326 | case FIO_Q_BUSY: |
327 | requeue_io_u(td, &io_u); | |
5451792e JA |
328 | ret2 = td_io_commit(td); |
329 | if (ret2 < 0) | |
330 | ret = ret2; | |
755200a3 | 331 | break; |
36167d82 JA |
332 | default: |
333 | assert(ret < 0); | |
e1161c32 | 334 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
335 | break; |
336 | } | |
337 | ||
99784632 | 338 | if (ret < 0 || td->error) |
3af6ef39 JA |
339 | break; |
340 | ||
ebac4655 | 341 | /* |
3af6ef39 JA |
342 | * if we can queue more, do so. but check if there are |
343 | * completed io_u's first. | |
ebac4655 | 344 | */ |
97601024 | 345 | min_events = 0; |
e916b390 | 346 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
3af6ef39 | 347 | min_events = 1; |
3af6ef39 | 348 | |
e916b390 JA |
349 | if (td->cur_depth > td->iodepth_low) |
350 | min_events = td->cur_depth - td->iodepth_low; | |
351 | } | |
352 | ||
3af6ef39 JA |
353 | /* |
354 | * Reap required number of io units, if any, and do the | |
355 | * verification on them through the callback handler | |
356 | */ | |
d7762cf8 | 357 | if (io_u_queued_complete(td, min_events) < 0) |
ebac4655 | 358 | break; |
36167d82 | 359 | } |
ebac4655 | 360 | |
c01c0395 JA |
361 | if (!td->error) { |
362 | min_events = td->cur_depth; | |
363 | ||
364 | if (min_events) | |
365 | ret = io_u_queued_complete(td, min_events); | |
366 | } else | |
ebac4655 JA |
367 | cleanup_pending_aio(td); |
368 | ||
369 | td_set_runstate(td, TD_RUNNING); | |
370 | } | |
371 | ||
32cd46a0 | 372 | /* |
906c8d75 | 373 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
374 | * and reaps them, checking for rate and errors along the way. |
375 | */ | |
ebac4655 JA |
376 | static void do_io(struct thread_data *td) |
377 | { | |
02bcaa8c | 378 | struct timeval s; |
ebac4655 | 379 | unsigned long usec; |
84585003 | 380 | int i, ret = 0; |
ebac4655 | 381 | |
5853e5a8 JA |
382 | td_set_runstate(td, TD_RUNNING); |
383 | ||
3951414d | 384 | while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->io_size) { |
97601024 JA |
385 | struct timeval comp_time; |
386 | long bytes_done = 0; | |
84585003 | 387 | int min_evts = 0; |
ebac4655 | 388 | struct io_u *io_u; |
5451792e | 389 | int ret2; |
ebac4655 JA |
390 | |
391 | if (td->terminate) | |
392 | break; | |
393 | ||
3d7c391d | 394 | io_u = get_io_u(td); |
ebac4655 JA |
395 | if (!io_u) |
396 | break; | |
397 | ||
398 | memcpy(&s, &io_u->start_time, sizeof(s)); | |
97601024 JA |
399 | |
400 | if (runtime_exceeded(td, &s)) { | |
401 | put_io_u(td, io_u); | |
402 | break; | |
403 | } | |
36167d82 | 404 | |
11786802 | 405 | ret = td_io_queue(td, io_u); |
36167d82 JA |
406 | switch (ret) { |
407 | case FIO_Q_COMPLETED: | |
5451792e JA |
408 | if (io_u->error) |
409 | ret = -io_u->error; | |
9e9d164e | 410 | else if (io_u->resid) { |
36167d82 JA |
411 | int bytes = io_u->xfer_buflen - io_u->resid; |
412 | ||
9e9d164e JA |
413 | /* |
414 | * zero read, fail | |
415 | */ | |
416 | if (!bytes) { | |
417 | td_verror(td, ENODATA, "full resid"); | |
418 | put_io_u(td, io_u); | |
419 | break; | |
420 | } | |
421 | ||
cec6b55d | 422 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 423 | io_u->xfer_buf += bytes; |
11786802 JA |
424 | requeue_io_u(td, &io_u); |
425 | } else { | |
426 | fio_gettime(&comp_time, NULL); | |
427 | bytes_done = io_u_sync_complete(td, io_u); | |
428 | if (bytes_done < 0) | |
429 | ret = bytes_done; | |
cec6b55d | 430 | } |
36167d82 JA |
431 | break; |
432 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
433 | /* |
434 | * if the engine doesn't have a commit hook, | |
435 | * the io_u is really queued. if it does have such | |
436 | * a hook, it has to call io_u_queued() itself. | |
437 | */ | |
438 | if (td->io_ops->commit == NULL) | |
439 | io_u_queued(td, io_u); | |
36167d82 | 440 | break; |
755200a3 JA |
441 | case FIO_Q_BUSY: |
442 | requeue_io_u(td, &io_u); | |
5451792e JA |
443 | ret2 = td_io_commit(td); |
444 | if (ret2 < 0) | |
445 | ret = ret2; | |
755200a3 | 446 | break; |
36167d82 JA |
447 | default: |
448 | assert(ret < 0); | |
449 | put_io_u(td, io_u); | |
450 | break; | |
ebac4655 JA |
451 | } |
452 | ||
99784632 | 453 | if (ret < 0 || td->error) |
36167d82 JA |
454 | break; |
455 | ||
97601024 JA |
456 | /* |
457 | * See if we need to complete some commands | |
458 | */ | |
755200a3 | 459 | if (ret == FIO_Q_QUEUED || ret == FIO_Q_BUSY) { |
97601024 | 460 | min_evts = 0; |
e916b390 | 461 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
36167d82 | 462 | min_evts = 1; |
ebac4655 | 463 | |
e916b390 JA |
464 | if (td->cur_depth > td->iodepth_low) |
465 | min_evts = td->cur_depth - td->iodepth_low; | |
466 | } | |
467 | ||
97601024 | 468 | fio_gettime(&comp_time, NULL); |
d7762cf8 | 469 | bytes_done = io_u_queued_complete(td, min_evts); |
97601024 | 470 | if (bytes_done < 0) |
36167d82 | 471 | break; |
ebac4655 JA |
472 | } |
473 | ||
97601024 JA |
474 | if (!bytes_done) |
475 | continue; | |
476 | ||
ebac4655 JA |
477 | /* |
478 | * the rate is batched for now, it should work for batches | |
479 | * of completions except the very first one which may look | |
480 | * a little bursty | |
481 | */ | |
97601024 | 482 | usec = utime_since(&s, &comp_time); |
ebac4655 | 483 | |
413dd459 | 484 | rate_throttle(td, usec, bytes_done); |
ebac4655 | 485 | |
97601024 | 486 | if (check_min_rate(td, &comp_time)) { |
98aa62d8 | 487 | if (exitall_on_terminate) |
390c40e2 | 488 | terminate_threads(td->groupid); |
e1161c32 | 489 | td_verror(td, ENODATA, "check_min_rate"); |
ebac4655 JA |
490 | break; |
491 | } | |
492 | ||
9c1f7434 JA |
493 | if (td->thinktime) { |
494 | unsigned long long b; | |
495 | ||
496 | b = td->io_blocks[0] + td->io_blocks[1]; | |
48097d5c JA |
497 | if (!(b % td->thinktime_blocks)) { |
498 | int left; | |
499 | ||
500 | if (td->thinktime_spin) | |
501 | __usec_sleep(td->thinktime_spin); | |
502 | ||
503 | left = td->thinktime - td->thinktime_spin; | |
504 | if (left) | |
505 | usec_sleep(td, left); | |
506 | } | |
9c1f7434 | 507 | } |
ebac4655 JA |
508 | } |
509 | ||
4d2413c6 | 510 | if (!td->error) { |
3d7c391d JA |
511 | struct fio_file *f; |
512 | ||
c01c0395 JA |
513 | i = td->cur_depth; |
514 | if (i) | |
515 | ret = io_u_queued_complete(td, i); | |
ebac4655 | 516 | |
84585003 JA |
517 | if (should_fsync(td) && td->end_fsync) { |
518 | td_set_runstate(td, TD_FSYNCING); | |
519 | for_each_file(td, f, i) | |
858a3d47 | 520 | fio_io_sync(td, f); |
84585003 | 521 | } |
c01c0395 JA |
522 | } else |
523 | cleanup_pending_aio(td); | |
ebac4655 JA |
524 | } |
525 | ||
ebac4655 JA |
526 | static void cleanup_io_u(struct thread_data *td) |
527 | { | |
528 | struct list_head *entry, *n; | |
529 | struct io_u *io_u; | |
530 | ||
531 | list_for_each_safe(entry, n, &td->io_u_freelist) { | |
532 | io_u = list_entry(entry, struct io_u, list); | |
533 | ||
534 | list_del(&io_u->list); | |
535 | free(io_u); | |
536 | } | |
537 | ||
2f9ade3c | 538 | free_io_mem(td); |
ebac4655 JA |
539 | } |
540 | ||
6b9cea23 JA |
541 | /* |
542 | * "randomly" fill the buffer contents | |
543 | */ | |
66eeb296 | 544 | static void fill_rand_buf(struct io_u *io_u, int max_bs) |
6b9cea23 | 545 | { |
66eeb296 | 546 | int *ptr = io_u->buf; |
6b9cea23 JA |
547 | |
548 | while ((void *) ptr - io_u->buf < max_bs) { | |
549 | *ptr = rand() * 0x9e370001; | |
550 | ptr++; | |
551 | } | |
552 | } | |
553 | ||
ebac4655 JA |
554 | static int init_io_u(struct thread_data *td) |
555 | { | |
556 | struct io_u *io_u; | |
a00735e6 | 557 | unsigned int max_bs; |
ebac4655 JA |
558 | int i, max_units; |
559 | char *p; | |
560 | ||
2866c82d | 561 | if (td->io_ops->flags & FIO_SYNCIO) |
ebac4655 JA |
562 | max_units = 1; |
563 | else | |
564 | max_units = td->iodepth; | |
565 | ||
a00735e6 | 566 | max_bs = max(td->max_bs[DDIR_READ], td->max_bs[DDIR_WRITE]); |
74b025b0 JA |
567 | td->orig_buffer_size = max_bs * max_units; |
568 | ||
d0bdaf49 | 569 | if (td->mem_type == MEM_SHMHUGE || td->mem_type == MEM_MMAPHUGE) |
56bb17f2 | 570 | td->orig_buffer_size = (td->orig_buffer_size + td->hugepage_size - 1) & ~(td->hugepage_size - 1); |
74b025b0 | 571 | else |
29d610e1 | 572 | td->orig_buffer_size += page_mask; |
ebac4655 | 573 | |
2f9ade3c JA |
574 | if (allocate_io_mem(td)) |
575 | return 1; | |
ebac4655 | 576 | |
ebac4655 JA |
577 | p = ALIGN(td->orig_buffer); |
578 | for (i = 0; i < max_units; i++) { | |
579 | io_u = malloc(sizeof(*io_u)); | |
580 | memset(io_u, 0, sizeof(*io_u)); | |
581 | INIT_LIST_HEAD(&io_u->list); | |
582 | ||
a00735e6 | 583 | io_u->buf = p + max_bs * i; |
6b9cea23 | 584 | if (td_write(td) || td_rw(td)) |
a00735e6 | 585 | fill_rand_buf(io_u, max_bs); |
6b9cea23 | 586 | |
b1ff3403 | 587 | io_u->index = i; |
0c6e7517 | 588 | io_u->flags = IO_U_F_FREE; |
ebac4655 JA |
589 | list_add(&io_u->list, &td->io_u_freelist); |
590 | } | |
591 | ||
433afcb4 JA |
592 | io_u_init_timeout(); |
593 | ||
ebac4655 JA |
594 | return 0; |
595 | } | |
596 | ||
da86774e JA |
597 | static int switch_ioscheduler(struct thread_data *td) |
598 | { | |
599 | char tmp[256], tmp2[128]; | |
600 | FILE *f; | |
601 | int ret; | |
602 | ||
ba0fbe10 | 603 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
604 | return 0; |
605 | ||
da86774e JA |
606 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
607 | ||
608 | f = fopen(tmp, "r+"); | |
609 | if (!f) { | |
e1161c32 | 610 | td_verror(td, errno, "fopen"); |
da86774e JA |
611 | return 1; |
612 | } | |
613 | ||
614 | /* | |
615 | * Set io scheduler. | |
616 | */ | |
617 | ret = fwrite(td->ioscheduler, strlen(td->ioscheduler), 1, f); | |
618 | if (ferror(f) || ret != 1) { | |
e1161c32 | 619 | td_verror(td, errno, "fwrite"); |
da86774e JA |
620 | fclose(f); |
621 | return 1; | |
622 | } | |
623 | ||
624 | rewind(f); | |
625 | ||
626 | /* | |
627 | * Read back and check that the selected scheduler is now the default. | |
628 | */ | |
629 | ret = fread(tmp, 1, sizeof(tmp), f); | |
630 | if (ferror(f) || ret < 0) { | |
e1161c32 | 631 | td_verror(td, errno, "fread"); |
da86774e JA |
632 | fclose(f); |
633 | return 1; | |
634 | } | |
635 | ||
636 | sprintf(tmp2, "[%s]", td->ioscheduler); | |
637 | if (!strstr(tmp, tmp2)) { | |
3b70d7e5 | 638 | log_err("fio: io scheduler %s not found\n", td->ioscheduler); |
e1161c32 | 639 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
640 | fclose(f); |
641 | return 1; | |
642 | } | |
643 | ||
644 | fclose(f); | |
645 | return 0; | |
646 | } | |
647 | ||
a978ba68 | 648 | static int clear_io_state(struct thread_data *td) |
ebac4655 | 649 | { |
53cdc686 | 650 | struct fio_file *f; |
a978ba68 | 651 | int i, ret; |
ebac4655 | 652 | |
756867bd | 653 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 654 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 655 | td->zone_bytes = 0; |
d7d3b49b | 656 | td->rate_bytes = 0; |
ebac4655 | 657 | |
c1324df1 JA |
658 | td->last_was_sync = 0; |
659 | ||
a978ba68 JA |
660 | for_each_file(td, f, i) |
661 | td_io_close_file(td, f); | |
53cdc686 | 662 | |
a978ba68 JA |
663 | ret = 0; |
664 | for_each_file(td, f, i) { | |
665 | ret = td_io_open_file(td, f); | |
666 | if (ret) | |
667 | break; | |
53cdc686 | 668 | } |
a978ba68 JA |
669 | |
670 | return ret; | |
ebac4655 JA |
671 | } |
672 | ||
906c8d75 JA |
673 | /* |
674 | * Entry point for the thread based jobs. The process based jobs end up | |
675 | * here as well, after a little setup. | |
676 | */ | |
ebac4655 JA |
677 | static void *thread_main(void *data) |
678 | { | |
69008999 | 679 | unsigned long long runtime[2]; |
ebac4655 | 680 | struct thread_data *td = data; |
a978ba68 | 681 | int clear_state; |
ebac4655 JA |
682 | |
683 | if (!td->use_thread) | |
684 | setsid(); | |
685 | ||
686 | td->pid = getpid(); | |
687 | ||
aea47d44 JA |
688 | INIT_LIST_HEAD(&td->io_u_freelist); |
689 | INIT_LIST_HEAD(&td->io_u_busylist); | |
755200a3 | 690 | INIT_LIST_HEAD(&td->io_u_requeues); |
aea47d44 JA |
691 | INIT_LIST_HEAD(&td->io_hist_list); |
692 | INIT_LIST_HEAD(&td->io_log_list); | |
693 | ||
ebac4655 JA |
694 | if (init_io_u(td)) |
695 | goto err; | |
696 | ||
697 | if (fio_setaffinity(td) == -1) { | |
e1161c32 | 698 | td_verror(td, errno, "cpu_set_affinity"); |
ebac4655 JA |
699 | goto err; |
700 | } | |
701 | ||
aea47d44 JA |
702 | if (init_iolog(td)) |
703 | goto err; | |
704 | ||
ebac4655 JA |
705 | if (td->ioprio) { |
706 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { | |
e1161c32 | 707 | td_verror(td, errno, "ioprio_set"); |
ebac4655 JA |
708 | goto err; |
709 | } | |
710 | } | |
711 | ||
1056eaad | 712 | if (nice(td->nice) == -1) { |
e1161c32 | 713 | td_verror(td, errno, "nice"); |
b6f4d880 JA |
714 | goto err; |
715 | } | |
716 | ||
75154845 JA |
717 | if (init_random_state(td)) |
718 | goto err; | |
719 | ||
56f9498d JA |
720 | if (td->ioscheduler && switch_ioscheduler(td)) |
721 | goto err; | |
da86774e | 722 | |
75154845 | 723 | td_set_runstate(td, TD_INITIALIZED); |
07739b57 JA |
724 | fio_sem_up(startup_sem); |
725 | fio_sem_down(td->mutex); | |
ebac4655 | 726 | |
37f56873 JA |
727 | /* |
728 | * the ->mutex semaphore is now no longer used, close it to avoid | |
729 | * eating a file descriptor | |
730 | */ | |
731 | fio_sem_remove(td->mutex); | |
732 | ||
53cdc686 | 733 | if (!td->create_serialize && setup_files(td)) |
ebac4655 JA |
734 | goto err; |
735 | ||
7d6c5283 JA |
736 | if (td_io_init(td)) |
737 | goto err; | |
738 | ||
b5af8293 JA |
739 | if (open_files(td)) |
740 | goto err; | |
741 | ||
69cfd7e0 JA |
742 | if (td->exec_prerun) { |
743 | if (system(td->exec_prerun) < 0) | |
744 | goto err; | |
745 | } | |
4e0ba8af | 746 | |
69008999 | 747 | fio_gettime(&td->epoch, NULL); |
433afcb4 | 748 | memcpy(&td->timeout_end, &td->epoch, sizeof(td->epoch)); |
756867bd | 749 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 JA |
750 | |
751 | runtime[0] = runtime[1] = 0; | |
a978ba68 | 752 | clear_state = 0; |
ebac4655 | 753 | while (td->loops--) { |
02bcaa8c | 754 | fio_gettime(&td->start, NULL); |
756867bd | 755 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
ebac4655 JA |
756 | |
757 | if (td->ratemin) | |
756867bd | 758 | memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate)); |
ebac4655 | 759 | |
a978ba68 JA |
760 | if (clear_state && clear_io_state(td)) |
761 | break; | |
762 | ||
ebac4655 JA |
763 | prune_io_piece_log(td); |
764 | ||
ba0fbe10 | 765 | do_io(td); |
ebac4655 | 766 | |
a978ba68 JA |
767 | clear_state = 1; |
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 | ||
a978ba68 JA |
780 | if (clear_io_state(td)) |
781 | break; | |
782 | ||
02bcaa8c | 783 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
784 | |
785 | do_verify(td); | |
786 | ||
69008999 | 787 | runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
788 | |
789 | if (td->error || td->terminate) | |
790 | break; | |
791 | } | |
792 | ||
36dff966 | 793 | update_rusage_stat(td); |
756867bd JA |
794 | td->ts.runtime[0] = runtime[0] / 1000; |
795 | td->ts.runtime[1] = runtime[1] / 1000; | |
796 | td->ts.total_run_time = mtime_since_now(&td->epoch); | |
797 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
798 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
799 | ||
800 | if (td->ts.bw_log) | |
801 | finish_log(td, td->ts.bw_log, "bw"); | |
802 | if (td->ts.slat_log) | |
803 | finish_log(td, td->ts.slat_log, "slat"); | |
804 | if (td->ts.clat_log) | |
805 | finish_log(td, td->ts.clat_log, "clat"); | |
076efc7c | 806 | if (td->write_iolog_file) |
843a7413 | 807 | write_iolog_close(td); |
69cfd7e0 JA |
808 | if (td->exec_postrun) { |
809 | if (system(td->exec_postrun) < 0) | |
810 | log_err("fio: postrun %s failed\n", td->exec_postrun); | |
811 | } | |
ebac4655 JA |
812 | |
813 | if (exitall_on_terminate) | |
390c40e2 | 814 | terminate_threads(td->groupid); |
ebac4655 JA |
815 | |
816 | err: | |
5bf13a5a JA |
817 | if (td->error) |
818 | printf("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
53cdc686 | 819 | close_files(td); |
2866c82d | 820 | close_ioengine(td); |
ebac4655 | 821 | cleanup_io_u(td); |
ebac4655 | 822 | td_set_runstate(td, TD_EXITED); |
43d76807 | 823 | return (void *) (unsigned long) td->error; |
ebac4655 JA |
824 | } |
825 | ||
906c8d75 JA |
826 | /* |
827 | * We cannot pass the td data into a forked process, so attach the td and | |
828 | * pass it to the thread worker. | |
829 | */ | |
a6418147 | 830 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
831 | { |
832 | struct thread_data *td; | |
a6418147 | 833 | void *data, *ret; |
ebac4655 JA |
834 | |
835 | data = shmat(shmid, NULL, 0); | |
836 | if (data == (void *) -1) { | |
a6418147 JA |
837 | int __err = errno; |
838 | ||
ebac4655 | 839 | perror("shmat"); |
a6418147 | 840 | return __err; |
ebac4655 JA |
841 | } |
842 | ||
843 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 844 | ret = thread_main(td); |
ebac4655 | 845 | shmdt(data); |
43d76807 | 846 | return (int) (unsigned long) ret; |
ebac4655 JA |
847 | } |
848 | ||
906c8d75 JA |
849 | /* |
850 | * Run over the job map and reap the threads that have exited, if any. | |
851 | */ | |
ebac4655 JA |
852 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
853 | { | |
34572e28 | 854 | struct thread_data *td; |
fab6aa71 | 855 | int i, cputhreads, pending, status, ret; |
ebac4655 JA |
856 | |
857 | /* | |
858 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
859 | */ | |
4d2413c6 | 860 | pending = cputhreads = 0; |
34572e28 | 861 | for_each_td(td, i) { |
3707f45b | 862 | int flags = 0; |
a2f77c9f | 863 | |
84585003 JA |
864 | /* |
865 | * ->io_ops is NULL for a thread that has closed its | |
866 | * io engine | |
867 | */ | |
ba0fbe10 | 868 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 JA |
869 | cputhreads++; |
870 | ||
a2f77c9f JA |
871 | if (!td->pid || td->runstate == TD_REAPED) |
872 | continue; | |
3707f45b JA |
873 | if (td->use_thread) { |
874 | if (td->runstate == TD_EXITED) { | |
875 | td_set_runstate(td, TD_REAPED); | |
876 | goto reaped; | |
877 | } | |
878 | continue; | |
879 | } | |
a2f77c9f JA |
880 | |
881 | flags = WNOHANG; | |
882 | if (td->runstate == TD_EXITED) | |
883 | flags = 0; | |
884 | ||
885 | /* | |
886 | * check if someone quit or got killed in an unusual way | |
887 | */ | |
888 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 889 | if (ret < 0) { |
a2f77c9f JA |
890 | if (errno == ECHILD) { |
891 | log_err("fio: pid=%d disappeared %d\n", td->pid, td->runstate); | |
892 | td_set_runstate(td, TD_REAPED); | |
893 | goto reaped; | |
894 | } | |
895 | perror("waitpid"); | |
896 | } else if (ret == td->pid) { | |
897 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
898 | int sig = WTERMSIG(status); |
899 | ||
d9244941 JA |
900 | if (sig != SIGQUIT) |
901 | log_err("fio: pid=%d, got signal=%d\n", td->pid, sig); | |
fab6aa71 JA |
902 | td_set_runstate(td, TD_REAPED); |
903 | goto reaped; | |
904 | } | |
a2f77c9f JA |
905 | if (WIFEXITED(status)) { |
906 | if (WEXITSTATUS(status) && !td->error) | |
907 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 908 | |
a2f77c9f JA |
909 | td_set_runstate(td, TD_REAPED); |
910 | goto reaped; | |
a6418147 JA |
911 | } |
912 | } | |
ebac4655 | 913 | |
a2f77c9f JA |
914 | /* |
915 | * thread is not dead, continue | |
916 | */ | |
917 | continue; | |
fab6aa71 | 918 | reaped: |
3707f45b JA |
919 | if (td->use_thread) { |
920 | long ret; | |
921 | ||
922 | if (pthread_join(td->thread, (void *) &ret)) | |
923 | perror("pthread_join"); | |
924 | } | |
925 | ||
ebac4655 JA |
926 | (*nr_running)--; |
927 | (*m_rate) -= td->ratemin; | |
928 | (*t_rate) -= td->rate; | |
a2f77c9f JA |
929 | |
930 | if (td->error) | |
931 | exit_value++; | |
ebac4655 | 932 | } |
b990b5c0 | 933 | |
4d2413c6 | 934 | if (*nr_running == cputhreads && !pending) |
390c40e2 | 935 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
936 | } |
937 | ||
906c8d75 JA |
938 | /* |
939 | * Main function for kicking off and reaping jobs, as needed. | |
940 | */ | |
ebac4655 JA |
941 | static void run_threads(void) |
942 | { | |
ebac4655 JA |
943 | struct thread_data *td; |
944 | unsigned long spent; | |
945 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 946 | |
2f9ade3c JA |
947 | if (fio_pin_memory()) |
948 | return; | |
ebac4655 | 949 | |
c6ae0a5b JA |
950 | if (!terse_output) { |
951 | printf("Starting %d thread%s\n", thread_number, thread_number > 1 ? "s" : ""); | |
952 | fflush(stdout); | |
953 | } | |
c04f7ec3 | 954 | |
4efa970e JA |
955 | signal(SIGINT, sig_handler); |
956 | signal(SIGALRM, sig_handler); | |
957 | ||
ebac4655 JA |
958 | todo = thread_number; |
959 | nr_running = 0; | |
960 | nr_started = 0; | |
961 | m_rate = t_rate = 0; | |
962 | ||
34572e28 | 963 | for_each_td(td, i) { |
263e529f | 964 | print_status_init(td->thread_number - 1); |
ebac4655 | 965 | |
380cf265 JA |
966 | if (!td->create_serialize) { |
967 | init_disk_util(td); | |
ebac4655 | 968 | continue; |
380cf265 | 969 | } |
ebac4655 JA |
970 | |
971 | /* | |
972 | * do file setup here so it happens sequentially, | |
973 | * we don't want X number of threads getting their | |
974 | * client data interspersed on disk | |
975 | */ | |
53cdc686 | 976 | if (setup_files(td)) { |
5bf13a5a JA |
977 | exit_value++; |
978 | if (td->error) | |
979 | log_err("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
ebac4655 JA |
980 | td_set_runstate(td, TD_REAPED); |
981 | todo--; | |
982 | } | |
380cf265 JA |
983 | |
984 | init_disk_util(td); | |
ebac4655 JA |
985 | } |
986 | ||
a2f77c9f JA |
987 | set_genesis_time(); |
988 | ||
ebac4655 | 989 | while (todo) { |
75154845 JA |
990 | struct thread_data *map[MAX_JOBS]; |
991 | struct timeval this_start; | |
992 | int this_jobs = 0, left; | |
993 | ||
ebac4655 JA |
994 | /* |
995 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
996 | */ | |
34572e28 | 997 | for_each_td(td, i) { |
ebac4655 JA |
998 | if (td->runstate != TD_NOT_CREATED) |
999 | continue; | |
1000 | ||
1001 | /* | |
1002 | * never got a chance to start, killed by other | |
1003 | * thread for some reason | |
1004 | */ | |
1005 | if (td->terminate) { | |
1006 | todo--; | |
1007 | continue; | |
1008 | } | |
1009 | ||
1010 | if (td->start_delay) { | |
263e529f | 1011 | spent = mtime_since_genesis(); |
ebac4655 JA |
1012 | |
1013 | if (td->start_delay * 1000 > spent) | |
1014 | continue; | |
1015 | } | |
1016 | ||
1017 | if (td->stonewall && (nr_started || nr_running)) | |
1018 | break; | |
1019 | ||
75154845 JA |
1020 | /* |
1021 | * Set state to created. Thread will transition | |
1022 | * to TD_INITIALIZED when it's done setting up. | |
1023 | */ | |
ebac4655 | 1024 | td_set_runstate(td, TD_CREATED); |
75154845 | 1025 | map[this_jobs++] = td; |
ebac4655 JA |
1026 | nr_started++; |
1027 | ||
1028 | if (td->use_thread) { | |
1029 | if (pthread_create(&td->thread, NULL, thread_main, td)) { | |
1030 | perror("thread_create"); | |
1031 | nr_started--; | |
c8bb6faf | 1032 | break; |
ebac4655 JA |
1033 | } |
1034 | } else { | |
07739b57 | 1035 | if (!fork()) { |
a6418147 JA |
1036 | int ret = fork_main(shm_id, i); |
1037 | ||
1038 | exit(ret); | |
ebac4655 JA |
1039 | } |
1040 | } | |
07739b57 | 1041 | fio_sem_down(startup_sem); |
ebac4655 JA |
1042 | } |
1043 | ||
1044 | /* | |
75154845 JA |
1045 | * Wait for the started threads to transition to |
1046 | * TD_INITIALIZED. | |
ebac4655 | 1047 | */ |
02bcaa8c | 1048 | fio_gettime(&this_start, NULL); |
75154845 | 1049 | left = this_jobs; |
6ce15a32 | 1050 | while (left && !fio_abort) { |
75154845 JA |
1051 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1052 | break; | |
1053 | ||
1054 | usleep(100000); | |
1055 | ||
1056 | for (i = 0; i < this_jobs; i++) { | |
1057 | td = map[i]; | |
1058 | if (!td) | |
1059 | continue; | |
b6f4d880 | 1060 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1061 | map[i] = NULL; |
1062 | left--; | |
b6f4d880 JA |
1063 | } else if (td->runstate >= TD_EXITED) { |
1064 | map[i] = NULL; | |
1065 | left--; | |
1066 | todo--; | |
1067 | nr_running++; /* work-around... */ | |
75154845 JA |
1068 | } |
1069 | } | |
1070 | } | |
1071 | ||
1072 | if (left) { | |
3b70d7e5 | 1073 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1074 | for (i = 0; i < this_jobs; i++) { |
1075 | td = map[i]; | |
1076 | if (!td) | |
1077 | continue; | |
1078 | kill(td->pid, SIGTERM); | |
1079 | } | |
1080 | break; | |
1081 | } | |
1082 | ||
1083 | /* | |
b6f4d880 | 1084 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1085 | */ |
34572e28 | 1086 | for_each_td(td, i) { |
75154845 | 1087 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1088 | continue; |
1089 | ||
1090 | td_set_runstate(td, TD_RUNNING); | |
1091 | nr_running++; | |
1092 | nr_started--; | |
1093 | m_rate += td->ratemin; | |
1094 | t_rate += td->rate; | |
75154845 | 1095 | todo--; |
07739b57 | 1096 | fio_sem_up(td->mutex); |
ebac4655 JA |
1097 | } |
1098 | ||
1099 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1100 | ||
1101 | if (todo) | |
1102 | usleep(100000); | |
1103 | } | |
1104 | ||
1105 | while (nr_running) { | |
1106 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1107 | usleep(10000); | |
1108 | } | |
1109 | ||
1110 | update_io_ticks(); | |
2f9ade3c | 1111 | fio_unpin_memory(); |
ebac4655 JA |
1112 | } |
1113 | ||
ebac4655 JA |
1114 | int main(int argc, char *argv[]) |
1115 | { | |
29d610e1 JA |
1116 | long ps; |
1117 | ||
dbe1125e JA |
1118 | /* |
1119 | * We need locale for number printing, if it isn't set then just | |
1120 | * go with the US format. | |
1121 | */ | |
1122 | if (!getenv("LC_NUMERIC")) | |
1123 | setlocale(LC_NUMERIC, "en_US"); | |
1124 | ||
ebac4655 JA |
1125 | if (parse_options(argc, argv)) |
1126 | return 1; | |
1127 | ||
1128 | if (!thread_number) { | |
3b70d7e5 | 1129 | log_err("Nothing to do\n"); |
ebac4655 JA |
1130 | return 1; |
1131 | } | |
1132 | ||
29d610e1 JA |
1133 | ps = sysconf(_SC_PAGESIZE); |
1134 | if (ps < 0) { | |
1135 | log_err("Failed to get page size\n"); | |
1136 | return 1; | |
1137 | } | |
1138 | ||
1139 | page_mask = ps - 1; | |
1140 | ||
bb3884d8 JA |
1141 | if (write_bw_log) { |
1142 | setup_log(&agg_io_log[DDIR_READ]); | |
1143 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1144 | } | |
1145 | ||
07739b57 JA |
1146 | startup_sem = fio_sem_init(0); |
1147 | ||
a2f77c9f JA |
1148 | set_genesis_time(); |
1149 | ||
ebac4655 JA |
1150 | disk_util_timer_arm(); |
1151 | ||
1152 | run_threads(); | |
6ce15a32 | 1153 | |
bb3884d8 | 1154 | if (!fio_abort) { |
6ce15a32 | 1155 | show_run_stats(); |
bb3884d8 JA |
1156 | if (write_bw_log) { |
1157 | __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log"); | |
1158 | __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log"); | |
1159 | } | |
1160 | } | |
ebac4655 | 1161 | |
07739b57 | 1162 | fio_sem_remove(startup_sem); |
437c9b71 | 1163 | return exit_value; |
ebac4655 | 1164 | } |