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 | ||
63 | static void terminate_threads(int group_id, int forced_kill) | |
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) { |
d9244941 | 70 | kill(td->pid, SIGQUIT); |
ebac4655 JA |
71 | td->terminate = 1; |
72 | td->start_delay = 0; | |
6ce15a32 JA |
73 | if (forced_kill) |
74 | td_set_runstate(td, TD_EXITED); | |
ebac4655 JA |
75 | } |
76 | } | |
77 | } | |
78 | ||
79 | static void sig_handler(int sig) | |
80 | { | |
81 | switch (sig) { | |
82 | case SIGALRM: | |
83 | update_io_ticks(); | |
84 | disk_util_timer_arm(); | |
85 | print_thread_status(); | |
86 | break; | |
87 | default: | |
6ce15a32 | 88 | printf("\nfio: terminating on signal %d\n", sig); |
ebac4655 | 89 | fflush(stdout); |
6ce15a32 | 90 | terminate_threads(TERMINATE_ALL, 0); |
ebac4655 JA |
91 | break; |
92 | } | |
93 | } | |
94 | ||
906c8d75 JA |
95 | /* |
96 | * Check if we are above the minimum rate given. | |
97 | */ | |
ebac4655 JA |
98 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
99 | { | |
0904200b | 100 | unsigned long long bytes = 0; |
ebac4655 JA |
101 | unsigned long spent; |
102 | unsigned long rate; | |
ebac4655 | 103 | |
780bf1a1 JA |
104 | /* |
105 | * No minimum rate set, always ok | |
106 | */ | |
107 | if (!td->ratemin) | |
108 | return 0; | |
109 | ||
ebac4655 JA |
110 | /* |
111 | * allow a 2 second settle period in the beginning | |
112 | */ | |
113 | if (mtime_since(&td->start, now) < 2000) | |
114 | return 0; | |
115 | ||
0904200b JA |
116 | if (td_read(td)) |
117 | bytes += td->this_io_bytes[DDIR_READ]; | |
118 | if (td_write(td)) | |
119 | bytes += td->this_io_bytes[DDIR_WRITE]; | |
120 | ||
ebac4655 JA |
121 | /* |
122 | * if rate blocks is set, sample is running | |
123 | */ | |
124 | if (td->rate_bytes) { | |
125 | spent = mtime_since(&td->lastrate, now); | |
126 | if (spent < td->ratecycle) | |
127 | return 0; | |
128 | ||
413dd459 JA |
129 | if (bytes < td->rate_bytes) { |
130 | fprintf(f_out, "%s: min rate %u not met\n", td->name, td->ratemin); | |
ebac4655 | 131 | return 1; |
413dd459 JA |
132 | } else { |
133 | rate = (bytes - td->rate_bytes) / spent; | |
134 | if (rate < td->ratemin || bytes < td->rate_bytes) { | |
135 | fprintf(f_out, "%s: min rate %u not met, got %luKiB/sec\n", td->name, td->ratemin, rate); | |
136 | return 1; | |
137 | } | |
ebac4655 JA |
138 | } |
139 | } | |
140 | ||
0904200b | 141 | td->rate_bytes = bytes; |
ebac4655 JA |
142 | memcpy(&td->lastrate, now, sizeof(*now)); |
143 | return 0; | |
144 | } | |
145 | ||
146 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
147 | { | |
148 | if (!td->timeout) | |
149 | return 0; | |
150 | if (mtime_since(&td->epoch, t) >= td->timeout * 1000) | |
151 | return 1; | |
152 | ||
153 | return 0; | |
154 | } | |
155 | ||
906c8d75 JA |
156 | /* |
157 | * When job exits, we can cancel the in-flight IO if we are using async | |
158 | * io. Attempt to do so. | |
159 | */ | |
ebac4655 JA |
160 | static void cleanup_pending_aio(struct thread_data *td) |
161 | { | |
ebac4655 | 162 | struct list_head *entry, *n; |
ebac4655 JA |
163 | struct io_u *io_u; |
164 | int r; | |
165 | ||
166 | /* | |
167 | * get immediately available events, if any | |
168 | */ | |
d7762cf8 | 169 | r = io_u_queued_complete(td, 0); |
b2fdda43 JA |
170 | if (r < 0) |
171 | return; | |
ebac4655 JA |
172 | |
173 | /* | |
174 | * now cancel remaining active events | |
175 | */ | |
2866c82d | 176 | if (td->io_ops->cancel) { |
ebac4655 JA |
177 | list_for_each_safe(entry, n, &td->io_u_busylist) { |
178 | io_u = list_entry(entry, struct io_u, list); | |
179 | ||
0c6e7517 JA |
180 | /* |
181 | * if the io_u isn't in flight, then that generally | |
182 | * means someone leaked an io_u. complain but fix | |
183 | * it up, so we don't stall here. | |
184 | */ | |
185 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
186 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 187 | put_io_u(td, io_u); |
0c6e7517 JA |
188 | } else { |
189 | r = td->io_ops->cancel(td, io_u); | |
190 | if (!r) | |
191 | put_io_u(td, io_u); | |
192 | } | |
ebac4655 JA |
193 | } |
194 | } | |
195 | ||
97601024 | 196 | if (td->cur_depth) |
d7762cf8 | 197 | r = io_u_queued_complete(td, td->cur_depth); |
ebac4655 JA |
198 | } |
199 | ||
858a3d47 JA |
200 | /* |
201 | * Helper to handle the final sync of a file. Works just like the normal | |
202 | * io path, just does everything sync. | |
203 | */ | |
204 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
205 | { | |
206 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
207 | int ret; |
208 | ||
209 | if (!io_u) | |
210 | return 1; | |
211 | ||
212 | io_u->ddir = DDIR_SYNC; | |
213 | io_u->file = f; | |
214 | ||
215 | if (td_io_prep(td, io_u)) { | |
216 | put_io_u(td, io_u); | |
217 | return 1; | |
218 | } | |
219 | ||
755200a3 | 220 | requeue: |
858a3d47 | 221 | ret = td_io_queue(td, io_u); |
36167d82 | 222 | if (ret < 0) { |
e1161c32 | 223 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 224 | put_io_u(td, io_u); |
858a3d47 | 225 | return 1; |
36167d82 | 226 | } else if (ret == FIO_Q_QUEUED) { |
d7762cf8 | 227 | if (io_u_queued_complete(td, 1) < 0) |
36167d82 | 228 | return 1; |
36167d82 JA |
229 | } else if (ret == FIO_Q_COMPLETED) { |
230 | if (io_u->error) { | |
e1161c32 | 231 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
232 | return 1; |
233 | } | |
858a3d47 | 234 | |
d7762cf8 | 235 | if (io_u_sync_complete(td, io_u) < 0) |
b2fdda43 | 236 | return 1; |
755200a3 JA |
237 | } else if (ret == FIO_Q_BUSY) { |
238 | if (td_io_commit(td)) | |
239 | return 1; | |
240 | goto requeue; | |
858a3d47 JA |
241 | } |
242 | ||
243 | return 0; | |
244 | } | |
245 | ||
906c8d75 | 246 | /* |
34403fb1 | 247 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
248 | * reads the blocks back in, and checks the crc/md5 of the data. |
249 | */ | |
1e97cce9 | 250 | static void do_verify(struct thread_data *td) |
ebac4655 | 251 | { |
53cdc686 | 252 | struct fio_file *f; |
36167d82 | 253 | struct io_u *io_u; |
3af6ef39 | 254 | int ret, i, min_events; |
e5b401d4 JA |
255 | |
256 | /* | |
257 | * sync io first and invalidate cache, to make sure we really | |
258 | * read from disk. | |
259 | */ | |
260 | for_each_file(td, f, i) { | |
b2fdda43 JA |
261 | if (fio_io_sync(td, f)) |
262 | break; | |
263 | if (file_invalidate_cache(td, f)) | |
264 | break; | |
e5b401d4 | 265 | } |
ebac4655 | 266 | |
b2fdda43 JA |
267 | if (td->error) |
268 | return; | |
269 | ||
ebac4655 JA |
270 | td_set_runstate(td, TD_VERIFYING); |
271 | ||
36167d82 JA |
272 | io_u = NULL; |
273 | while (!td->terminate) { | |
5451792e JA |
274 | int ret2; |
275 | ||
ebac4655 JA |
276 | io_u = __get_io_u(td); |
277 | if (!io_u) | |
278 | break; | |
279 | ||
069c2918 JA |
280 | if (runtime_exceeded(td, &io_u->start_time)) { |
281 | put_io_u(td, io_u); | |
02bcaa8c | 282 | break; |
069c2918 | 283 | } |
02bcaa8c | 284 | |
069c2918 JA |
285 | if (get_next_verify(td, io_u)) { |
286 | put_io_u(td, io_u); | |
ebac4655 | 287 | break; |
069c2918 | 288 | } |
ebac4655 | 289 | |
069c2918 JA |
290 | if (td_io_prep(td, io_u)) { |
291 | put_io_u(td, io_u); | |
53cdc686 | 292 | break; |
069c2918 | 293 | } |
d7762cf8 JA |
294 | |
295 | io_u->end_io = verify_io_u; | |
36167d82 JA |
296 | requeue: |
297 | ret = td_io_queue(td, io_u); | |
53cdc686 | 298 | |
36167d82 JA |
299 | switch (ret) { |
300 | case FIO_Q_COMPLETED: | |
301 | if (io_u->error) | |
22819ec2 | 302 | ret = -io_u->error; |
5451792e | 303 | else if (io_u->xfer_buflen != io_u->resid && io_u->resid) { |
36167d82 | 304 | int bytes = io_u->xfer_buflen - io_u->resid; |
ebac4655 | 305 | |
36167d82 JA |
306 | io_u->xfer_buflen = io_u->resid; |
307 | io_u->xfer_buf += bytes; | |
308 | goto requeue; | |
309 | } | |
d7762cf8 | 310 | ret = io_u_sync_complete(td, io_u); |
49db69aa | 311 | if (ret < 0) |
36167d82 | 312 | break; |
36167d82 JA |
313 | continue; |
314 | case FIO_Q_QUEUED: | |
315 | break; | |
755200a3 JA |
316 | case FIO_Q_BUSY: |
317 | requeue_io_u(td, &io_u); | |
5451792e JA |
318 | ret2 = td_io_commit(td); |
319 | if (ret2 < 0) | |
320 | ret = ret2; | |
755200a3 | 321 | break; |
36167d82 JA |
322 | default: |
323 | assert(ret < 0); | |
e1161c32 | 324 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
325 | break; |
326 | } | |
327 | ||
99784632 | 328 | if (ret < 0 || td->error) |
3af6ef39 JA |
329 | break; |
330 | ||
ebac4655 | 331 | /* |
3af6ef39 JA |
332 | * if we can queue more, do so. but check if there are |
333 | * completed io_u's first. | |
ebac4655 | 334 | */ |
97601024 | 335 | min_events = 0; |
e916b390 | 336 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
3af6ef39 | 337 | min_events = 1; |
3af6ef39 | 338 | |
e916b390 JA |
339 | if (td->cur_depth > td->iodepth_low) |
340 | min_events = td->cur_depth - td->iodepth_low; | |
341 | } | |
342 | ||
3af6ef39 JA |
343 | /* |
344 | * Reap required number of io units, if any, and do the | |
345 | * verification on them through the callback handler | |
346 | */ | |
d7762cf8 | 347 | if (io_u_queued_complete(td, min_events) < 0) |
ebac4655 | 348 | break; |
36167d82 | 349 | } |
ebac4655 | 350 | |
c01c0395 JA |
351 | if (!td->error) { |
352 | min_events = td->cur_depth; | |
353 | ||
354 | if (min_events) | |
355 | ret = io_u_queued_complete(td, min_events); | |
356 | } else | |
ebac4655 JA |
357 | cleanup_pending_aio(td); |
358 | ||
359 | td_set_runstate(td, TD_RUNNING); | |
360 | } | |
361 | ||
b990b5c0 JA |
362 | /* |
363 | * Not really an io thread, all it does is burn CPU cycles in the specified | |
364 | * manner. | |
365 | */ | |
366 | static void do_cpuio(struct thread_data *td) | |
367 | { | |
368 | struct timeval e; | |
369 | int split = 100 / td->cpuload; | |
370 | int i = 0; | |
371 | ||
372 | while (!td->terminate) { | |
02bcaa8c | 373 | fio_gettime(&e, NULL); |
b990b5c0 JA |
374 | |
375 | if (runtime_exceeded(td, &e)) | |
376 | break; | |
377 | ||
378 | if (!(i % split)) | |
379 | __usec_sleep(10000); | |
380 | else | |
381 | usec_sleep(td, 10000); | |
382 | ||
383 | i++; | |
384 | } | |
385 | } | |
386 | ||
32cd46a0 | 387 | /* |
906c8d75 | 388 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
389 | * and reaps them, checking for rate and errors along the way. |
390 | */ | |
ebac4655 JA |
391 | static void do_io(struct thread_data *td) |
392 | { | |
02bcaa8c | 393 | struct timeval s; |
ebac4655 | 394 | unsigned long usec; |
84585003 | 395 | int i, ret = 0; |
ebac4655 | 396 | |
5853e5a8 JA |
397 | td_set_runstate(td, TD_RUNNING); |
398 | ||
3951414d | 399 | while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->io_size) { |
97601024 JA |
400 | struct timeval comp_time; |
401 | long bytes_done = 0; | |
84585003 | 402 | int min_evts = 0; |
ebac4655 | 403 | struct io_u *io_u; |
5451792e | 404 | int ret2; |
ebac4655 JA |
405 | |
406 | if (td->terminate) | |
407 | break; | |
408 | ||
3d7c391d | 409 | io_u = get_io_u(td); |
ebac4655 JA |
410 | if (!io_u) |
411 | break; | |
412 | ||
413 | memcpy(&s, &io_u->start_time, sizeof(s)); | |
97601024 JA |
414 | |
415 | if (runtime_exceeded(td, &s)) { | |
416 | put_io_u(td, io_u); | |
417 | break; | |
418 | } | |
cec6b55d | 419 | requeue: |
45bee283 | 420 | ret = td_io_queue(td, io_u); |
36167d82 JA |
421 | |
422 | switch (ret) { | |
423 | case FIO_Q_COMPLETED: | |
5451792e JA |
424 | if (io_u->error) |
425 | ret = -io_u->error; | |
426 | else if (io_u->xfer_buflen != io_u->resid && io_u->resid) { | |
36167d82 JA |
427 | int bytes = io_u->xfer_buflen - io_u->resid; |
428 | ||
cec6b55d | 429 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 430 | io_u->xfer_buf += bytes; |
cec6b55d | 431 | goto requeue; |
cec6b55d | 432 | } |
97601024 | 433 | fio_gettime(&comp_time, NULL); |
d7762cf8 | 434 | bytes_done = io_u_sync_complete(td, io_u); |
99784632 JA |
435 | if (bytes_done < 0) |
436 | ret = bytes_done; | |
36167d82 JA |
437 | break; |
438 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
439 | /* |
440 | * if the engine doesn't have a commit hook, | |
441 | * the io_u is really queued. if it does have such | |
442 | * a hook, it has to call io_u_queued() itself. | |
443 | */ | |
444 | if (td->io_ops->commit == NULL) | |
445 | io_u_queued(td, io_u); | |
36167d82 | 446 | break; |
755200a3 JA |
447 | case FIO_Q_BUSY: |
448 | requeue_io_u(td, &io_u); | |
5451792e JA |
449 | ret2 = td_io_commit(td); |
450 | if (ret2 < 0) | |
451 | ret = ret2; | |
755200a3 | 452 | break; |
36167d82 JA |
453 | default: |
454 | assert(ret < 0); | |
455 | put_io_u(td, io_u); | |
456 | break; | |
ebac4655 JA |
457 | } |
458 | ||
99784632 | 459 | if (ret < 0 || td->error) |
36167d82 JA |
460 | break; |
461 | ||
97601024 JA |
462 | /* |
463 | * See if we need to complete some commands | |
464 | */ | |
755200a3 | 465 | if (ret == FIO_Q_QUEUED || ret == FIO_Q_BUSY) { |
97601024 | 466 | min_evts = 0; |
e916b390 | 467 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
36167d82 | 468 | min_evts = 1; |
ebac4655 | 469 | |
e916b390 JA |
470 | if (td->cur_depth > td->iodepth_low) |
471 | min_evts = td->cur_depth - td->iodepth_low; | |
472 | } | |
473 | ||
97601024 | 474 | fio_gettime(&comp_time, NULL); |
d7762cf8 | 475 | bytes_done = io_u_queued_complete(td, min_evts); |
97601024 | 476 | if (bytes_done < 0) |
36167d82 | 477 | break; |
ebac4655 JA |
478 | } |
479 | ||
97601024 JA |
480 | if (!bytes_done) |
481 | continue; | |
482 | ||
ebac4655 JA |
483 | /* |
484 | * the rate is batched for now, it should work for batches | |
485 | * of completions except the very first one which may look | |
486 | * a little bursty | |
487 | */ | |
97601024 | 488 | usec = utime_since(&s, &comp_time); |
ebac4655 | 489 | |
413dd459 | 490 | rate_throttle(td, usec, bytes_done); |
ebac4655 | 491 | |
97601024 | 492 | if (check_min_rate(td, &comp_time)) { |
98aa62d8 | 493 | if (exitall_on_terminate) |
6ce15a32 | 494 | terminate_threads(td->groupid, 0); |
e1161c32 | 495 | td_verror(td, ENODATA, "check_min_rate"); |
ebac4655 JA |
496 | break; |
497 | } | |
498 | ||
9c1f7434 JA |
499 | if (td->thinktime) { |
500 | unsigned long long b; | |
501 | ||
502 | b = td->io_blocks[0] + td->io_blocks[1]; | |
48097d5c JA |
503 | if (!(b % td->thinktime_blocks)) { |
504 | int left; | |
505 | ||
506 | if (td->thinktime_spin) | |
507 | __usec_sleep(td->thinktime_spin); | |
508 | ||
509 | left = td->thinktime - td->thinktime_spin; | |
510 | if (left) | |
511 | usec_sleep(td, left); | |
512 | } | |
9c1f7434 | 513 | } |
ebac4655 JA |
514 | } |
515 | ||
4d2413c6 | 516 | if (!td->error) { |
3d7c391d JA |
517 | struct fio_file *f; |
518 | ||
c01c0395 JA |
519 | i = td->cur_depth; |
520 | if (i) | |
521 | ret = io_u_queued_complete(td, i); | |
ebac4655 | 522 | |
84585003 JA |
523 | if (should_fsync(td) && td->end_fsync) { |
524 | td_set_runstate(td, TD_FSYNCING); | |
525 | for_each_file(td, f, i) | |
858a3d47 | 526 | fio_io_sync(td, f); |
84585003 | 527 | } |
c01c0395 JA |
528 | } else |
529 | cleanup_pending_aio(td); | |
ebac4655 JA |
530 | } |
531 | ||
ebac4655 JA |
532 | static void cleanup_io_u(struct thread_data *td) |
533 | { | |
534 | struct list_head *entry, *n; | |
535 | struct io_u *io_u; | |
536 | ||
537 | list_for_each_safe(entry, n, &td->io_u_freelist) { | |
538 | io_u = list_entry(entry, struct io_u, list); | |
539 | ||
540 | list_del(&io_u->list); | |
541 | free(io_u); | |
542 | } | |
543 | ||
2f9ade3c | 544 | free_io_mem(td); |
ebac4655 JA |
545 | } |
546 | ||
6b9cea23 JA |
547 | /* |
548 | * "randomly" fill the buffer contents | |
549 | */ | |
66eeb296 | 550 | static void fill_rand_buf(struct io_u *io_u, int max_bs) |
6b9cea23 | 551 | { |
66eeb296 | 552 | int *ptr = io_u->buf; |
6b9cea23 JA |
553 | |
554 | while ((void *) ptr - io_u->buf < max_bs) { | |
555 | *ptr = rand() * 0x9e370001; | |
556 | ptr++; | |
557 | } | |
558 | } | |
559 | ||
ebac4655 JA |
560 | static int init_io_u(struct thread_data *td) |
561 | { | |
562 | struct io_u *io_u; | |
a00735e6 | 563 | unsigned int max_bs; |
ebac4655 JA |
564 | int i, max_units; |
565 | char *p; | |
566 | ||
2866c82d | 567 | if (td->io_ops->flags & FIO_CPUIO) |
b990b5c0 JA |
568 | return 0; |
569 | ||
2866c82d | 570 | if (td->io_ops->flags & FIO_SYNCIO) |
ebac4655 JA |
571 | max_units = 1; |
572 | else | |
573 | max_units = td->iodepth; | |
574 | ||
a00735e6 | 575 | max_bs = max(td->max_bs[DDIR_READ], td->max_bs[DDIR_WRITE]); |
74b025b0 JA |
576 | td->orig_buffer_size = max_bs * max_units; |
577 | ||
d0bdaf49 | 578 | if (td->mem_type == MEM_SHMHUGE || td->mem_type == MEM_MMAPHUGE) |
56bb17f2 | 579 | td->orig_buffer_size = (td->orig_buffer_size + td->hugepage_size - 1) & ~(td->hugepage_size - 1); |
74b025b0 | 580 | else |
29d610e1 | 581 | td->orig_buffer_size += page_mask; |
ebac4655 | 582 | |
2f9ade3c JA |
583 | if (allocate_io_mem(td)) |
584 | return 1; | |
ebac4655 | 585 | |
ebac4655 JA |
586 | p = ALIGN(td->orig_buffer); |
587 | for (i = 0; i < max_units; i++) { | |
588 | io_u = malloc(sizeof(*io_u)); | |
589 | memset(io_u, 0, sizeof(*io_u)); | |
590 | INIT_LIST_HEAD(&io_u->list); | |
591 | ||
a00735e6 | 592 | io_u->buf = p + max_bs * i; |
6b9cea23 | 593 | if (td_write(td) || td_rw(td)) |
a00735e6 | 594 | fill_rand_buf(io_u, max_bs); |
6b9cea23 | 595 | |
b1ff3403 | 596 | io_u->index = i; |
0c6e7517 | 597 | io_u->flags = IO_U_F_FREE; |
ebac4655 JA |
598 | list_add(&io_u->list, &td->io_u_freelist); |
599 | } | |
600 | ||
433afcb4 JA |
601 | io_u_init_timeout(); |
602 | ||
ebac4655 JA |
603 | return 0; |
604 | } | |
605 | ||
da86774e JA |
606 | static int switch_ioscheduler(struct thread_data *td) |
607 | { | |
608 | char tmp[256], tmp2[128]; | |
609 | FILE *f; | |
610 | int ret; | |
611 | ||
f48b467c JA |
612 | if (td->io_ops->flags & FIO_CPUIO) |
613 | return 0; | |
614 | ||
da86774e JA |
615 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
616 | ||
617 | f = fopen(tmp, "r+"); | |
618 | if (!f) { | |
e1161c32 | 619 | td_verror(td, errno, "fopen"); |
da86774e JA |
620 | return 1; |
621 | } | |
622 | ||
623 | /* | |
624 | * Set io scheduler. | |
625 | */ | |
626 | ret = fwrite(td->ioscheduler, strlen(td->ioscheduler), 1, f); | |
627 | if (ferror(f) || ret != 1) { | |
e1161c32 | 628 | td_verror(td, errno, "fwrite"); |
da86774e JA |
629 | fclose(f); |
630 | return 1; | |
631 | } | |
632 | ||
633 | rewind(f); | |
634 | ||
635 | /* | |
636 | * Read back and check that the selected scheduler is now the default. | |
637 | */ | |
638 | ret = fread(tmp, 1, sizeof(tmp), f); | |
639 | if (ferror(f) || ret < 0) { | |
e1161c32 | 640 | td_verror(td, errno, "fread"); |
da86774e JA |
641 | fclose(f); |
642 | return 1; | |
643 | } | |
644 | ||
645 | sprintf(tmp2, "[%s]", td->ioscheduler); | |
646 | if (!strstr(tmp, tmp2)) { | |
3b70d7e5 | 647 | log_err("fio: io scheduler %s not found\n", td->ioscheduler); |
e1161c32 | 648 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
649 | fclose(f); |
650 | return 1; | |
651 | } | |
652 | ||
653 | fclose(f); | |
654 | return 0; | |
655 | } | |
656 | ||
ebac4655 JA |
657 | static void clear_io_state(struct thread_data *td) |
658 | { | |
53cdc686 JA |
659 | struct fio_file *f; |
660 | int i; | |
ebac4655 | 661 | |
079ad09b | 662 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 663 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 664 | td->zone_bytes = 0; |
ebac4655 | 665 | |
c1324df1 JA |
666 | td->last_was_sync = 0; |
667 | ||
53cdc686 | 668 | for_each_file(td, f, i) { |
c1324df1 JA |
669 | f->last_completed_pos = 0; |
670 | ||
53cdc686 JA |
671 | f->last_pos = 0; |
672 | if (td->io_ops->flags & FIO_SYNCIO) | |
673 | lseek(f->fd, SEEK_SET, 0); | |
674 | ||
675 | if (f->file_map) | |
676 | memset(f->file_map, 0, f->num_maps * sizeof(long)); | |
677 | } | |
ebac4655 JA |
678 | } |
679 | ||
906c8d75 JA |
680 | /* |
681 | * Entry point for the thread based jobs. The process based jobs end up | |
682 | * here as well, after a little setup. | |
683 | */ | |
ebac4655 JA |
684 | static void *thread_main(void *data) |
685 | { | |
69008999 | 686 | unsigned long long runtime[2]; |
ebac4655 | 687 | struct thread_data *td = data; |
ebac4655 JA |
688 | |
689 | if (!td->use_thread) | |
690 | setsid(); | |
691 | ||
692 | td->pid = getpid(); | |
693 | ||
aea47d44 JA |
694 | INIT_LIST_HEAD(&td->io_u_freelist); |
695 | INIT_LIST_HEAD(&td->io_u_busylist); | |
755200a3 | 696 | INIT_LIST_HEAD(&td->io_u_requeues); |
aea47d44 JA |
697 | INIT_LIST_HEAD(&td->io_hist_list); |
698 | INIT_LIST_HEAD(&td->io_log_list); | |
699 | ||
ebac4655 JA |
700 | if (init_io_u(td)) |
701 | goto err; | |
702 | ||
703 | if (fio_setaffinity(td) == -1) { | |
e1161c32 | 704 | td_verror(td, errno, "cpu_set_affinity"); |
ebac4655 JA |
705 | goto err; |
706 | } | |
707 | ||
aea47d44 JA |
708 | if (init_iolog(td)) |
709 | goto err; | |
710 | ||
ebac4655 JA |
711 | if (td->ioprio) { |
712 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { | |
e1161c32 | 713 | td_verror(td, errno, "ioprio_set"); |
ebac4655 JA |
714 | goto err; |
715 | } | |
716 | } | |
717 | ||
1056eaad | 718 | if (nice(td->nice) == -1) { |
e1161c32 | 719 | td_verror(td, errno, "nice"); |
b6f4d880 JA |
720 | goto err; |
721 | } | |
722 | ||
75154845 JA |
723 | if (init_random_state(td)) |
724 | goto err; | |
725 | ||
56f9498d JA |
726 | if (td->ioscheduler && switch_ioscheduler(td)) |
727 | goto err; | |
da86774e | 728 | |
75154845 | 729 | td_set_runstate(td, TD_INITIALIZED); |
bbfd6b00 JA |
730 | fio_sem_up(&startup_sem); |
731 | fio_sem_down(&td->mutex); | |
ebac4655 | 732 | |
53cdc686 | 733 | if (!td->create_serialize && setup_files(td)) |
ebac4655 | 734 | goto err; |
21972cde JA |
735 | if (open_files(td)) |
736 | goto err; | |
ebac4655 | 737 | |
7d6c5283 JA |
738 | /* |
739 | * Do this late, as some IO engines would like to have the | |
740 | * files setup prior to initializing structures. | |
741 | */ | |
742 | if (td_io_init(td)) | |
743 | goto err; | |
744 | ||
69cfd7e0 JA |
745 | if (td->exec_prerun) { |
746 | if (system(td->exec_prerun) < 0) | |
747 | goto err; | |
748 | } | |
4e0ba8af | 749 | |
69008999 | 750 | fio_gettime(&td->epoch, NULL); |
433afcb4 | 751 | memcpy(&td->timeout_end, &td->epoch, sizeof(td->epoch)); |
079ad09b | 752 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 JA |
753 | |
754 | runtime[0] = runtime[1] = 0; | |
ebac4655 | 755 | while (td->loops--) { |
02bcaa8c | 756 | fio_gettime(&td->start, NULL); |
079ad09b | 757 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
ebac4655 JA |
758 | |
759 | if (td->ratemin) | |
079ad09b | 760 | memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate)); |
ebac4655 JA |
761 | |
762 | clear_io_state(td); | |
763 | prune_io_piece_log(td); | |
764 | ||
2866c82d | 765 | if (td->io_ops->flags & FIO_CPUIO) |
b990b5c0 JA |
766 | do_cpuio(td); |
767 | else | |
768 | do_io(td); | |
ebac4655 | 769 | |
413dd459 JA |
770 | if (td_read(td) && td->io_bytes[DDIR_READ]) |
771 | runtime[DDIR_READ] += utime_since_now(&td->start); | |
772 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) | |
773 | runtime[DDIR_WRITE] += utime_since_now(&td->start); | |
774 | ||
ebac4655 JA |
775 | if (td->error || td->terminate) |
776 | break; | |
777 | ||
778 | if (td->verify == VERIFY_NONE) | |
779 | continue; | |
780 | ||
781 | clear_io_state(td); | |
02bcaa8c | 782 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
783 | |
784 | do_verify(td); | |
785 | ||
69008999 | 786 | runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
787 | |
788 | if (td->error || td->terminate) | |
789 | break; | |
790 | } | |
791 | ||
36dff966 | 792 | update_rusage_stat(td); |
69008999 JA |
793 | fio_gettime(&td->end_time, NULL); |
794 | td->runtime[0] = runtime[0] / 1000; | |
795 | td->runtime[1] = runtime[1] / 1000; | |
796 | ||
079ad09b JA |
797 | if (td->ts.bw_log) |
798 | finish_log(td, td->ts.bw_log, "bw"); | |
799 | if (td->ts.slat_log) | |
800 | finish_log(td, td->ts.slat_log, "slat"); | |
801 | if (td->ts.clat_log) | |
802 | finish_log(td, td->ts.clat_log, "clat"); | |
076efc7c | 803 | if (td->write_iolog_file) |
843a7413 | 804 | write_iolog_close(td); |
69cfd7e0 JA |
805 | if (td->exec_postrun) { |
806 | if (system(td->exec_postrun) < 0) | |
807 | log_err("fio: postrun %s failed\n", td->exec_postrun); | |
808 | } | |
ebac4655 JA |
809 | |
810 | if (exitall_on_terminate) | |
6ce15a32 | 811 | terminate_threads(td->groupid, 0); |
ebac4655 JA |
812 | |
813 | err: | |
5bf13a5a JA |
814 | if (td->error) |
815 | printf("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
53cdc686 | 816 | close_files(td); |
2866c82d | 817 | close_ioengine(td); |
ebac4655 | 818 | cleanup_io_u(td); |
ebac4655 | 819 | td_set_runstate(td, TD_EXITED); |
43d76807 | 820 | return (void *) (unsigned long) td->error; |
ebac4655 JA |
821 | } |
822 | ||
906c8d75 JA |
823 | /* |
824 | * We cannot pass the td data into a forked process, so attach the td and | |
825 | * pass it to the thread worker. | |
826 | */ | |
a6418147 | 827 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
828 | { |
829 | struct thread_data *td; | |
a6418147 | 830 | void *data, *ret; |
ebac4655 JA |
831 | |
832 | data = shmat(shmid, NULL, 0); | |
833 | if (data == (void *) -1) { | |
a6418147 JA |
834 | int __err = errno; |
835 | ||
ebac4655 | 836 | perror("shmat"); |
a6418147 | 837 | return __err; |
ebac4655 JA |
838 | } |
839 | ||
840 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 841 | ret = thread_main(td); |
ebac4655 | 842 | shmdt(data); |
43d76807 | 843 | return (int) (unsigned long) ret; |
ebac4655 JA |
844 | } |
845 | ||
906c8d75 JA |
846 | /* |
847 | * Run over the job map and reap the threads that have exited, if any. | |
848 | */ | |
ebac4655 JA |
849 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
850 | { | |
34572e28 | 851 | struct thread_data *td; |
fab6aa71 | 852 | int i, cputhreads, pending, status, ret; |
ebac4655 JA |
853 | |
854 | /* | |
855 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
856 | */ | |
4d2413c6 | 857 | pending = cputhreads = 0; |
34572e28 | 858 | for_each_td(td, i) { |
3707f45b | 859 | int flags = 0; |
a2f77c9f | 860 | |
84585003 JA |
861 | /* |
862 | * ->io_ops is NULL for a thread that has closed its | |
863 | * io engine | |
864 | */ | |
865 | if (td->io_ops && td->io_ops->flags & FIO_CPUIO) | |
b990b5c0 JA |
866 | cputhreads++; |
867 | ||
a2f77c9f JA |
868 | if (!td->pid || td->runstate == TD_REAPED) |
869 | continue; | |
3707f45b JA |
870 | if (td->use_thread) { |
871 | if (td->runstate == TD_EXITED) { | |
872 | td_set_runstate(td, TD_REAPED); | |
873 | goto reaped; | |
874 | } | |
875 | continue; | |
876 | } | |
a2f77c9f JA |
877 | |
878 | flags = WNOHANG; | |
879 | if (td->runstate == TD_EXITED) | |
880 | flags = 0; | |
881 | ||
882 | /* | |
883 | * check if someone quit or got killed in an unusual way | |
884 | */ | |
885 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 886 | if (ret < 0) { |
a2f77c9f JA |
887 | if (errno == ECHILD) { |
888 | log_err("fio: pid=%d disappeared %d\n", td->pid, td->runstate); | |
889 | td_set_runstate(td, TD_REAPED); | |
890 | goto reaped; | |
891 | } | |
892 | perror("waitpid"); | |
893 | } else if (ret == td->pid) { | |
894 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
895 | int sig = WTERMSIG(status); |
896 | ||
d9244941 JA |
897 | if (sig != SIGQUIT) |
898 | log_err("fio: pid=%d, got signal=%d\n", td->pid, sig); | |
fab6aa71 JA |
899 | td_set_runstate(td, TD_REAPED); |
900 | goto reaped; | |
901 | } | |
a2f77c9f JA |
902 | if (WIFEXITED(status)) { |
903 | if (WEXITSTATUS(status) && !td->error) | |
904 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 905 | |
a2f77c9f JA |
906 | td_set_runstate(td, TD_REAPED); |
907 | goto reaped; | |
a6418147 JA |
908 | } |
909 | } | |
ebac4655 | 910 | |
a2f77c9f JA |
911 | /* |
912 | * thread is not dead, continue | |
913 | */ | |
914 | continue; | |
fab6aa71 | 915 | reaped: |
3707f45b JA |
916 | if (td->use_thread) { |
917 | long ret; | |
918 | ||
919 | if (pthread_join(td->thread, (void *) &ret)) | |
920 | perror("pthread_join"); | |
921 | } | |
922 | ||
ebac4655 JA |
923 | (*nr_running)--; |
924 | (*m_rate) -= td->ratemin; | |
925 | (*t_rate) -= td->rate; | |
a2f77c9f JA |
926 | |
927 | if (td->error) | |
928 | exit_value++; | |
ebac4655 | 929 | } |
b990b5c0 | 930 | |
4d2413c6 | 931 | if (*nr_running == cputhreads && !pending) |
6ce15a32 | 932 | terminate_threads(TERMINATE_ALL, 0); |
ebac4655 JA |
933 | } |
934 | ||
906c8d75 JA |
935 | /* |
936 | * Main function for kicking off and reaping jobs, as needed. | |
937 | */ | |
ebac4655 JA |
938 | static void run_threads(void) |
939 | { | |
ebac4655 JA |
940 | struct thread_data *td; |
941 | unsigned long spent; | |
942 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 943 | |
2f9ade3c JA |
944 | if (fio_pin_memory()) |
945 | return; | |
ebac4655 | 946 | |
c6ae0a5b JA |
947 | if (!terse_output) { |
948 | printf("Starting %d thread%s\n", thread_number, thread_number > 1 ? "s" : ""); | |
949 | fflush(stdout); | |
950 | } | |
c04f7ec3 | 951 | |
4efa970e JA |
952 | signal(SIGINT, sig_handler); |
953 | signal(SIGALRM, sig_handler); | |
954 | ||
ebac4655 JA |
955 | todo = thread_number; |
956 | nr_running = 0; | |
957 | nr_started = 0; | |
958 | m_rate = t_rate = 0; | |
959 | ||
34572e28 | 960 | for_each_td(td, i) { |
263e529f | 961 | print_status_init(td->thread_number - 1); |
ebac4655 | 962 | |
380cf265 JA |
963 | if (!td->create_serialize) { |
964 | init_disk_util(td); | |
ebac4655 | 965 | continue; |
380cf265 | 966 | } |
ebac4655 JA |
967 | |
968 | /* | |
969 | * do file setup here so it happens sequentially, | |
970 | * we don't want X number of threads getting their | |
971 | * client data interspersed on disk | |
972 | */ | |
53cdc686 | 973 | if (setup_files(td)) { |
5bf13a5a JA |
974 | exit_value++; |
975 | if (td->error) | |
976 | log_err("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
ebac4655 JA |
977 | td_set_runstate(td, TD_REAPED); |
978 | todo--; | |
979 | } | |
380cf265 JA |
980 | |
981 | init_disk_util(td); | |
ebac4655 JA |
982 | } |
983 | ||
a2f77c9f JA |
984 | set_genesis_time(); |
985 | ||
ebac4655 | 986 | while (todo) { |
75154845 JA |
987 | struct thread_data *map[MAX_JOBS]; |
988 | struct timeval this_start; | |
989 | int this_jobs = 0, left; | |
990 | ||
ebac4655 JA |
991 | /* |
992 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
993 | */ | |
34572e28 | 994 | for_each_td(td, i) { |
ebac4655 JA |
995 | if (td->runstate != TD_NOT_CREATED) |
996 | continue; | |
997 | ||
998 | /* | |
999 | * never got a chance to start, killed by other | |
1000 | * thread for some reason | |
1001 | */ | |
1002 | if (td->terminate) { | |
1003 | todo--; | |
1004 | continue; | |
1005 | } | |
1006 | ||
1007 | if (td->start_delay) { | |
263e529f | 1008 | spent = mtime_since_genesis(); |
ebac4655 JA |
1009 | |
1010 | if (td->start_delay * 1000 > spent) | |
1011 | continue; | |
1012 | } | |
1013 | ||
1014 | if (td->stonewall && (nr_started || nr_running)) | |
1015 | break; | |
1016 | ||
75154845 JA |
1017 | /* |
1018 | * Set state to created. Thread will transition | |
1019 | * to TD_INITIALIZED when it's done setting up. | |
1020 | */ | |
ebac4655 | 1021 | td_set_runstate(td, TD_CREATED); |
75154845 | 1022 | map[this_jobs++] = td; |
bbfd6b00 | 1023 | fio_sem_init(&startup_sem, 1); |
ebac4655 JA |
1024 | nr_started++; |
1025 | ||
1026 | if (td->use_thread) { | |
1027 | if (pthread_create(&td->thread, NULL, thread_main, td)) { | |
1028 | perror("thread_create"); | |
1029 | nr_started--; | |
1030 | } | |
1031 | } else { | |
1032 | if (fork()) | |
bbfd6b00 | 1033 | fio_sem_down(&startup_sem); |
ebac4655 | 1034 | else { |
a6418147 JA |
1035 | int ret = fork_main(shm_id, i); |
1036 | ||
1037 | exit(ret); | |
ebac4655 JA |
1038 | } |
1039 | } | |
1040 | } | |
1041 | ||
1042 | /* | |
75154845 JA |
1043 | * Wait for the started threads to transition to |
1044 | * TD_INITIALIZED. | |
ebac4655 | 1045 | */ |
02bcaa8c | 1046 | fio_gettime(&this_start, NULL); |
75154845 | 1047 | left = this_jobs; |
6ce15a32 | 1048 | while (left && !fio_abort) { |
75154845 JA |
1049 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1050 | break; | |
1051 | ||
1052 | usleep(100000); | |
1053 | ||
1054 | for (i = 0; i < this_jobs; i++) { | |
1055 | td = map[i]; | |
1056 | if (!td) | |
1057 | continue; | |
b6f4d880 | 1058 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1059 | map[i] = NULL; |
1060 | left--; | |
b6f4d880 JA |
1061 | } else if (td->runstate >= TD_EXITED) { |
1062 | map[i] = NULL; | |
1063 | left--; | |
1064 | todo--; | |
1065 | nr_running++; /* work-around... */ | |
75154845 JA |
1066 | } |
1067 | } | |
1068 | } | |
1069 | ||
1070 | if (left) { | |
3b70d7e5 | 1071 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1072 | for (i = 0; i < this_jobs; i++) { |
1073 | td = map[i]; | |
1074 | if (!td) | |
1075 | continue; | |
1076 | kill(td->pid, SIGTERM); | |
1077 | } | |
1078 | break; | |
1079 | } | |
1080 | ||
1081 | /* | |
b6f4d880 | 1082 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1083 | */ |
34572e28 | 1084 | for_each_td(td, i) { |
75154845 | 1085 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1086 | continue; |
1087 | ||
1088 | td_set_runstate(td, TD_RUNNING); | |
1089 | nr_running++; | |
1090 | nr_started--; | |
1091 | m_rate += td->ratemin; | |
1092 | t_rate += td->rate; | |
75154845 | 1093 | todo--; |
bbfd6b00 | 1094 | fio_sem_up(&td->mutex); |
ebac4655 JA |
1095 | } |
1096 | ||
1097 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1098 | ||
1099 | if (todo) | |
1100 | usleep(100000); | |
1101 | } | |
1102 | ||
1103 | while (nr_running) { | |
1104 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1105 | usleep(10000); | |
1106 | } | |
1107 | ||
1108 | update_io_ticks(); | |
2f9ade3c | 1109 | fio_unpin_memory(); |
ebac4655 JA |
1110 | } |
1111 | ||
ebac4655 JA |
1112 | int main(int argc, char *argv[]) |
1113 | { | |
29d610e1 JA |
1114 | long ps; |
1115 | ||
dbe1125e JA |
1116 | /* |
1117 | * We need locale for number printing, if it isn't set then just | |
1118 | * go with the US format. | |
1119 | */ | |
1120 | if (!getenv("LC_NUMERIC")) | |
1121 | setlocale(LC_NUMERIC, "en_US"); | |
1122 | ||
ebac4655 JA |
1123 | if (parse_options(argc, argv)) |
1124 | return 1; | |
1125 | ||
1126 | if (!thread_number) { | |
3b70d7e5 | 1127 | log_err("Nothing to do\n"); |
ebac4655 JA |
1128 | return 1; |
1129 | } | |
1130 | ||
29d610e1 JA |
1131 | ps = sysconf(_SC_PAGESIZE); |
1132 | if (ps < 0) { | |
1133 | log_err("Failed to get page size\n"); | |
1134 | return 1; | |
1135 | } | |
1136 | ||
1137 | page_mask = ps - 1; | |
1138 | ||
bb3884d8 JA |
1139 | if (write_bw_log) { |
1140 | setup_log(&agg_io_log[DDIR_READ]); | |
1141 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1142 | } | |
1143 | ||
a2f77c9f JA |
1144 | set_genesis_time(); |
1145 | ||
ebac4655 JA |
1146 | disk_util_timer_arm(); |
1147 | ||
1148 | run_threads(); | |
6ce15a32 | 1149 | |
bb3884d8 | 1150 | if (!fio_abort) { |
6ce15a32 | 1151 | show_run_stats(); |
bb3884d8 JA |
1152 | if (write_bw_log) { |
1153 | __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log"); | |
1154 | __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log"); | |
1155 | } | |
1156 | } | |
ebac4655 | 1157 | |
437c9b71 | 1158 | return exit_value; |
ebac4655 | 1159 | } |