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; | |
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) { | |
3d7b485f JA |
266 | if (!(f->flags & FIO_FILE_OPEN)) |
267 | continue; | |
b2fdda43 JA |
268 | if (fio_io_sync(td, f)) |
269 | break; | |
270 | if (file_invalidate_cache(td, f)) | |
271 | break; | |
e5b401d4 | 272 | } |
ebac4655 | 273 | |
b2fdda43 JA |
274 | if (td->error) |
275 | return; | |
276 | ||
ebac4655 JA |
277 | td_set_runstate(td, TD_VERIFYING); |
278 | ||
36167d82 JA |
279 | io_u = NULL; |
280 | while (!td->terminate) { | |
5451792e JA |
281 | int ret2; |
282 | ||
ebac4655 JA |
283 | io_u = __get_io_u(td); |
284 | if (!io_u) | |
285 | break; | |
286 | ||
069c2918 JA |
287 | if (runtime_exceeded(td, &io_u->start_time)) { |
288 | put_io_u(td, io_u); | |
02bcaa8c | 289 | break; |
069c2918 | 290 | } |
02bcaa8c | 291 | |
069c2918 JA |
292 | if (get_next_verify(td, io_u)) { |
293 | put_io_u(td, io_u); | |
ebac4655 | 294 | break; |
069c2918 | 295 | } |
ebac4655 | 296 | |
069c2918 JA |
297 | if (td_io_prep(td, io_u)) { |
298 | put_io_u(td, io_u); | |
53cdc686 | 299 | break; |
069c2918 | 300 | } |
d7762cf8 JA |
301 | |
302 | io_u->end_io = verify_io_u; | |
53cdc686 | 303 | |
11786802 | 304 | ret = td_io_queue(td, io_u); |
36167d82 JA |
305 | switch (ret) { |
306 | case FIO_Q_COMPLETED: | |
307 | if (io_u->error) | |
22819ec2 | 308 | ret = -io_u->error; |
9e9d164e | 309 | else if (io_u->resid) { |
36167d82 | 310 | int bytes = io_u->xfer_buflen - io_u->resid; |
ebac4655 | 311 | |
9e9d164e JA |
312 | /* |
313 | * zero read, fail | |
314 | */ | |
315 | if (!bytes) { | |
316 | td_verror(td, ENODATA, "full resid"); | |
317 | put_io_u(td, io_u); | |
318 | break; | |
319 | } | |
36167d82 JA |
320 | io_u->xfer_buflen = io_u->resid; |
321 | io_u->xfer_buf += bytes; | |
11786802 JA |
322 | requeue_io_u(td, &io_u); |
323 | } else { | |
324 | ret = io_u_sync_complete(td, io_u); | |
325 | if (ret < 0) | |
326 | break; | |
36167d82 | 327 | } |
36167d82 JA |
328 | continue; |
329 | case FIO_Q_QUEUED: | |
330 | break; | |
755200a3 JA |
331 | case FIO_Q_BUSY: |
332 | requeue_io_u(td, &io_u); | |
5451792e JA |
333 | ret2 = td_io_commit(td); |
334 | if (ret2 < 0) | |
335 | ret = ret2; | |
755200a3 | 336 | break; |
36167d82 JA |
337 | default: |
338 | assert(ret < 0); | |
e1161c32 | 339 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
340 | break; |
341 | } | |
342 | ||
99784632 | 343 | if (ret < 0 || td->error) |
3af6ef39 JA |
344 | break; |
345 | ||
ebac4655 | 346 | /* |
3af6ef39 JA |
347 | * if we can queue more, do so. but check if there are |
348 | * completed io_u's first. | |
ebac4655 | 349 | */ |
97601024 | 350 | min_events = 0; |
e916b390 | 351 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
3af6ef39 | 352 | min_events = 1; |
3af6ef39 | 353 | |
e916b390 JA |
354 | if (td->cur_depth > td->iodepth_low) |
355 | min_events = td->cur_depth - td->iodepth_low; | |
356 | } | |
357 | ||
3af6ef39 JA |
358 | /* |
359 | * Reap required number of io units, if any, and do the | |
360 | * verification on them through the callback handler | |
361 | */ | |
d7762cf8 | 362 | if (io_u_queued_complete(td, min_events) < 0) |
ebac4655 | 363 | break; |
36167d82 | 364 | } |
ebac4655 | 365 | |
c01c0395 JA |
366 | if (!td->error) { |
367 | min_events = td->cur_depth; | |
368 | ||
369 | if (min_events) | |
370 | ret = io_u_queued_complete(td, min_events); | |
371 | } else | |
ebac4655 JA |
372 | cleanup_pending_aio(td); |
373 | ||
374 | td_set_runstate(td, TD_RUNNING); | |
375 | } | |
376 | ||
32cd46a0 | 377 | /* |
906c8d75 | 378 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
379 | * and reaps them, checking for rate and errors along the way. |
380 | */ | |
ebac4655 JA |
381 | static void do_io(struct thread_data *td) |
382 | { | |
02bcaa8c | 383 | struct timeval s; |
ebac4655 | 384 | unsigned long usec; |
af52b345 JA |
385 | unsigned int i; |
386 | int ret = 0; | |
ebac4655 | 387 | |
5853e5a8 JA |
388 | td_set_runstate(td, TD_RUNNING); |
389 | ||
3951414d | 390 | while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->io_size) { |
97601024 JA |
391 | struct timeval comp_time; |
392 | long bytes_done = 0; | |
84585003 | 393 | int min_evts = 0; |
ebac4655 | 394 | struct io_u *io_u; |
5451792e | 395 | int ret2; |
ebac4655 JA |
396 | |
397 | if (td->terminate) | |
398 | break; | |
399 | ||
3d7c391d | 400 | io_u = get_io_u(td); |
ebac4655 JA |
401 | if (!io_u) |
402 | break; | |
403 | ||
404 | memcpy(&s, &io_u->start_time, sizeof(s)); | |
97601024 JA |
405 | |
406 | if (runtime_exceeded(td, &s)) { | |
407 | put_io_u(td, io_u); | |
408 | break; | |
409 | } | |
36167d82 | 410 | |
11786802 | 411 | ret = td_io_queue(td, io_u); |
36167d82 JA |
412 | switch (ret) { |
413 | case FIO_Q_COMPLETED: | |
5451792e JA |
414 | if (io_u->error) |
415 | ret = -io_u->error; | |
9e9d164e | 416 | else if (io_u->resid) { |
36167d82 JA |
417 | int bytes = io_u->xfer_buflen - io_u->resid; |
418 | ||
9e9d164e JA |
419 | /* |
420 | * zero read, fail | |
421 | */ | |
422 | if (!bytes) { | |
423 | td_verror(td, ENODATA, "full resid"); | |
424 | put_io_u(td, io_u); | |
425 | break; | |
426 | } | |
427 | ||
cec6b55d | 428 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 429 | io_u->xfer_buf += bytes; |
11786802 JA |
430 | requeue_io_u(td, &io_u); |
431 | } else { | |
432 | fio_gettime(&comp_time, NULL); | |
433 | bytes_done = io_u_sync_complete(td, io_u); | |
434 | if (bytes_done < 0) | |
435 | ret = bytes_done; | |
cec6b55d | 436 | } |
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) |
390c40e2 | 494 | terminate_threads(td->groupid); |
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); | |
3d7b485f JA |
525 | |
526 | for_each_file(td, f, i) { | |
527 | if (!(f->flags & FIO_FILE_OPEN)) | |
528 | continue; | |
858a3d47 | 529 | fio_io_sync(td, f); |
3d7b485f | 530 | } |
84585003 | 531 | } |
c01c0395 JA |
532 | } else |
533 | cleanup_pending_aio(td); | |
ebac4655 JA |
534 | } |
535 | ||
ebac4655 JA |
536 | static void cleanup_io_u(struct thread_data *td) |
537 | { | |
538 | struct list_head *entry, *n; | |
539 | struct io_u *io_u; | |
540 | ||
541 | list_for_each_safe(entry, n, &td->io_u_freelist) { | |
542 | io_u = list_entry(entry, struct io_u, list); | |
543 | ||
544 | list_del(&io_u->list); | |
545 | free(io_u); | |
546 | } | |
547 | ||
2f9ade3c | 548 | free_io_mem(td); |
ebac4655 JA |
549 | } |
550 | ||
6b9cea23 JA |
551 | /* |
552 | * "randomly" fill the buffer contents | |
553 | */ | |
66eeb296 | 554 | static void fill_rand_buf(struct io_u *io_u, int max_bs) |
6b9cea23 | 555 | { |
66eeb296 | 556 | int *ptr = io_u->buf; |
6b9cea23 JA |
557 | |
558 | while ((void *) ptr - io_u->buf < max_bs) { | |
559 | *ptr = rand() * 0x9e370001; | |
560 | ptr++; | |
561 | } | |
562 | } | |
563 | ||
ebac4655 JA |
564 | static int init_io_u(struct thread_data *td) |
565 | { | |
566 | struct io_u *io_u; | |
a00735e6 | 567 | unsigned int max_bs; |
ebac4655 JA |
568 | int i, max_units; |
569 | char *p; | |
570 | ||
2866c82d | 571 | if (td->io_ops->flags & FIO_SYNCIO) |
ebac4655 JA |
572 | max_units = 1; |
573 | else | |
574 | max_units = td->iodepth; | |
575 | ||
a00735e6 | 576 | max_bs = max(td->max_bs[DDIR_READ], td->max_bs[DDIR_WRITE]); |
74b025b0 JA |
577 | td->orig_buffer_size = max_bs * max_units; |
578 | ||
d0bdaf49 | 579 | if (td->mem_type == MEM_SHMHUGE || td->mem_type == MEM_MMAPHUGE) |
56bb17f2 | 580 | td->orig_buffer_size = (td->orig_buffer_size + td->hugepage_size - 1) & ~(td->hugepage_size - 1); |
74b025b0 | 581 | else |
29d610e1 | 582 | td->orig_buffer_size += page_mask; |
ebac4655 | 583 | |
2f9ade3c JA |
584 | if (allocate_io_mem(td)) |
585 | return 1; | |
ebac4655 | 586 | |
ebac4655 JA |
587 | p = ALIGN(td->orig_buffer); |
588 | for (i = 0; i < max_units; i++) { | |
589 | io_u = malloc(sizeof(*io_u)); | |
590 | memset(io_u, 0, sizeof(*io_u)); | |
591 | INIT_LIST_HEAD(&io_u->list); | |
592 | ||
a00735e6 | 593 | io_u->buf = p + max_bs * i; |
6b9cea23 | 594 | if (td_write(td) || td_rw(td)) |
a00735e6 | 595 | fill_rand_buf(io_u, max_bs); |
6b9cea23 | 596 | |
b1ff3403 | 597 | io_u->index = i; |
0c6e7517 | 598 | io_u->flags = IO_U_F_FREE; |
ebac4655 JA |
599 | list_add(&io_u->list, &td->io_u_freelist); |
600 | } | |
601 | ||
433afcb4 JA |
602 | io_u_init_timeout(); |
603 | ||
ebac4655 JA |
604 | return 0; |
605 | } | |
606 | ||
da86774e JA |
607 | static int switch_ioscheduler(struct thread_data *td) |
608 | { | |
609 | char tmp[256], tmp2[128]; | |
610 | FILE *f; | |
611 | int ret; | |
612 | ||
ba0fbe10 | 613 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
614 | return 0; |
615 | ||
da86774e JA |
616 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
617 | ||
618 | f = fopen(tmp, "r+"); | |
619 | if (!f) { | |
e1161c32 | 620 | td_verror(td, errno, "fopen"); |
da86774e JA |
621 | return 1; |
622 | } | |
623 | ||
624 | /* | |
625 | * Set io scheduler. | |
626 | */ | |
627 | ret = fwrite(td->ioscheduler, strlen(td->ioscheduler), 1, f); | |
628 | if (ferror(f) || ret != 1) { | |
e1161c32 | 629 | td_verror(td, errno, "fwrite"); |
da86774e JA |
630 | fclose(f); |
631 | return 1; | |
632 | } | |
633 | ||
634 | rewind(f); | |
635 | ||
636 | /* | |
637 | * Read back and check that the selected scheduler is now the default. | |
638 | */ | |
639 | ret = fread(tmp, 1, sizeof(tmp), f); | |
640 | if (ferror(f) || ret < 0) { | |
e1161c32 | 641 | td_verror(td, errno, "fread"); |
da86774e JA |
642 | fclose(f); |
643 | return 1; | |
644 | } | |
645 | ||
646 | sprintf(tmp2, "[%s]", td->ioscheduler); | |
647 | if (!strstr(tmp, tmp2)) { | |
3b70d7e5 | 648 | log_err("fio: io scheduler %s not found\n", td->ioscheduler); |
e1161c32 | 649 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
650 | fclose(f); |
651 | return 1; | |
652 | } | |
653 | ||
654 | fclose(f); | |
655 | return 0; | |
656 | } | |
657 | ||
a978ba68 | 658 | static int clear_io_state(struct thread_data *td) |
ebac4655 | 659 | { |
53cdc686 | 660 | struct fio_file *f; |
af52b345 JA |
661 | unsigned int i; |
662 | int ret; | |
ebac4655 | 663 | |
756867bd | 664 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 665 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 666 | td->zone_bytes = 0; |
d7d3b49b | 667 | td->rate_bytes = 0; |
ebac4655 | 668 | |
c1324df1 JA |
669 | td->last_was_sync = 0; |
670 | ||
a978ba68 JA |
671 | for_each_file(td, f, i) |
672 | td_io_close_file(td, f); | |
53cdc686 | 673 | |
a978ba68 JA |
674 | ret = 0; |
675 | for_each_file(td, f, i) { | |
676 | ret = td_io_open_file(td, f); | |
677 | if (ret) | |
678 | break; | |
53cdc686 | 679 | } |
a978ba68 JA |
680 | |
681 | return ret; | |
ebac4655 JA |
682 | } |
683 | ||
906c8d75 JA |
684 | /* |
685 | * Entry point for the thread based jobs. The process based jobs end up | |
686 | * here as well, after a little setup. | |
687 | */ | |
ebac4655 JA |
688 | static void *thread_main(void *data) |
689 | { | |
69008999 | 690 | unsigned long long runtime[2]; |
ebac4655 | 691 | struct thread_data *td = data; |
a978ba68 | 692 | int clear_state; |
ebac4655 JA |
693 | |
694 | if (!td->use_thread) | |
695 | setsid(); | |
696 | ||
697 | td->pid = getpid(); | |
698 | ||
aea47d44 JA |
699 | INIT_LIST_HEAD(&td->io_u_freelist); |
700 | INIT_LIST_HEAD(&td->io_u_busylist); | |
755200a3 | 701 | INIT_LIST_HEAD(&td->io_u_requeues); |
aea47d44 JA |
702 | INIT_LIST_HEAD(&td->io_hist_list); |
703 | INIT_LIST_HEAD(&td->io_log_list); | |
704 | ||
ebac4655 | 705 | if (init_io_u(td)) |
bda4fd9e | 706 | goto err_sem; |
ebac4655 JA |
707 | |
708 | if (fio_setaffinity(td) == -1) { | |
e1161c32 | 709 | td_verror(td, errno, "cpu_set_affinity"); |
bda4fd9e | 710 | goto err_sem; |
ebac4655 JA |
711 | } |
712 | ||
aea47d44 | 713 | if (init_iolog(td)) |
bda4fd9e | 714 | goto err_sem; |
aea47d44 | 715 | |
ebac4655 JA |
716 | if (td->ioprio) { |
717 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { | |
e1161c32 | 718 | td_verror(td, errno, "ioprio_set"); |
bda4fd9e | 719 | goto err_sem; |
ebac4655 JA |
720 | } |
721 | } | |
722 | ||
1056eaad | 723 | if (nice(td->nice) == -1) { |
e1161c32 | 724 | td_verror(td, errno, "nice"); |
bda4fd9e | 725 | goto err_sem; |
b6f4d880 JA |
726 | } |
727 | ||
75154845 | 728 | if (init_random_state(td)) |
bda4fd9e | 729 | goto err_sem; |
75154845 | 730 | |
56f9498d | 731 | if (td->ioscheduler && switch_ioscheduler(td)) |
bda4fd9e | 732 | goto err_sem; |
da86774e | 733 | |
75154845 | 734 | td_set_runstate(td, TD_INITIALIZED); |
07739b57 JA |
735 | fio_sem_up(startup_sem); |
736 | fio_sem_down(td->mutex); | |
ebac4655 | 737 | |
37f56873 JA |
738 | /* |
739 | * the ->mutex semaphore is now no longer used, close it to avoid | |
740 | * eating a file descriptor | |
741 | */ | |
742 | fio_sem_remove(td->mutex); | |
743 | ||
53cdc686 | 744 | if (!td->create_serialize && setup_files(td)) |
ebac4655 JA |
745 | goto err; |
746 | ||
7d6c5283 JA |
747 | if (td_io_init(td)) |
748 | goto err; | |
749 | ||
b5af8293 JA |
750 | if (open_files(td)) |
751 | goto err; | |
752 | ||
69cfd7e0 JA |
753 | if (td->exec_prerun) { |
754 | if (system(td->exec_prerun) < 0) | |
755 | goto err; | |
756 | } | |
4e0ba8af | 757 | |
69008999 | 758 | fio_gettime(&td->epoch, NULL); |
433afcb4 | 759 | memcpy(&td->timeout_end, &td->epoch, sizeof(td->epoch)); |
756867bd | 760 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 JA |
761 | |
762 | runtime[0] = runtime[1] = 0; | |
a978ba68 | 763 | clear_state = 0; |
ebac4655 | 764 | while (td->loops--) { |
02bcaa8c | 765 | fio_gettime(&td->start, NULL); |
756867bd | 766 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
ebac4655 JA |
767 | |
768 | if (td->ratemin) | |
756867bd | 769 | memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate)); |
ebac4655 | 770 | |
a978ba68 JA |
771 | if (clear_state && clear_io_state(td)) |
772 | break; | |
773 | ||
ebac4655 JA |
774 | prune_io_piece_log(td); |
775 | ||
ba0fbe10 | 776 | do_io(td); |
ebac4655 | 777 | |
a978ba68 JA |
778 | clear_state = 1; |
779 | ||
413dd459 JA |
780 | if (td_read(td) && td->io_bytes[DDIR_READ]) |
781 | runtime[DDIR_READ] += utime_since_now(&td->start); | |
782 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) | |
783 | runtime[DDIR_WRITE] += utime_since_now(&td->start); | |
784 | ||
ebac4655 JA |
785 | if (td->error || td->terminate) |
786 | break; | |
787 | ||
788 | if (td->verify == VERIFY_NONE) | |
789 | continue; | |
790 | ||
a978ba68 JA |
791 | if (clear_io_state(td)) |
792 | break; | |
793 | ||
02bcaa8c | 794 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
795 | |
796 | do_verify(td); | |
797 | ||
69008999 | 798 | runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
799 | |
800 | if (td->error || td->terminate) | |
801 | break; | |
802 | } | |
803 | ||
36dff966 | 804 | update_rusage_stat(td); |
756867bd JA |
805 | td->ts.runtime[0] = runtime[0] / 1000; |
806 | td->ts.runtime[1] = runtime[1] / 1000; | |
807 | td->ts.total_run_time = mtime_since_now(&td->epoch); | |
808 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
809 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
810 | ||
811 | if (td->ts.bw_log) | |
812 | finish_log(td, td->ts.bw_log, "bw"); | |
813 | if (td->ts.slat_log) | |
814 | finish_log(td, td->ts.slat_log, "slat"); | |
815 | if (td->ts.clat_log) | |
816 | finish_log(td, td->ts.clat_log, "clat"); | |
076efc7c | 817 | if (td->write_iolog_file) |
843a7413 | 818 | write_iolog_close(td); |
69cfd7e0 JA |
819 | if (td->exec_postrun) { |
820 | if (system(td->exec_postrun) < 0) | |
821 | log_err("fio: postrun %s failed\n", td->exec_postrun); | |
822 | } | |
ebac4655 JA |
823 | |
824 | if (exitall_on_terminate) | |
390c40e2 | 825 | terminate_threads(td->groupid); |
ebac4655 JA |
826 | |
827 | err: | |
5bf13a5a JA |
828 | if (td->error) |
829 | printf("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
53cdc686 | 830 | close_files(td); |
2866c82d | 831 | close_ioengine(td); |
ebac4655 | 832 | cleanup_io_u(td); |
ebac4655 | 833 | td_set_runstate(td, TD_EXITED); |
43d76807 | 834 | return (void *) (unsigned long) td->error; |
bda4fd9e JA |
835 | err_sem: |
836 | fio_sem_up(startup_sem); | |
837 | goto err; | |
ebac4655 JA |
838 | } |
839 | ||
906c8d75 JA |
840 | /* |
841 | * We cannot pass the td data into a forked process, so attach the td and | |
842 | * pass it to the thread worker. | |
843 | */ | |
a6418147 | 844 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
845 | { |
846 | struct thread_data *td; | |
a6418147 | 847 | void *data, *ret; |
ebac4655 JA |
848 | |
849 | data = shmat(shmid, NULL, 0); | |
850 | if (data == (void *) -1) { | |
a6418147 JA |
851 | int __err = errno; |
852 | ||
ebac4655 | 853 | perror("shmat"); |
a6418147 | 854 | return __err; |
ebac4655 JA |
855 | } |
856 | ||
857 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 858 | ret = thread_main(td); |
ebac4655 | 859 | shmdt(data); |
43d76807 | 860 | return (int) (unsigned long) ret; |
ebac4655 JA |
861 | } |
862 | ||
906c8d75 JA |
863 | /* |
864 | * Run over the job map and reap the threads that have exited, if any. | |
865 | */ | |
ebac4655 JA |
866 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
867 | { | |
34572e28 | 868 | struct thread_data *td; |
fab6aa71 | 869 | int i, cputhreads, pending, status, ret; |
ebac4655 JA |
870 | |
871 | /* | |
872 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
873 | */ | |
4d2413c6 | 874 | pending = cputhreads = 0; |
34572e28 | 875 | for_each_td(td, i) { |
3707f45b | 876 | int flags = 0; |
a2f77c9f | 877 | |
84585003 JA |
878 | /* |
879 | * ->io_ops is NULL for a thread that has closed its | |
880 | * io engine | |
881 | */ | |
ba0fbe10 | 882 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 JA |
883 | cputhreads++; |
884 | ||
a2f77c9f JA |
885 | if (!td->pid || td->runstate == TD_REAPED) |
886 | continue; | |
3707f45b JA |
887 | if (td->use_thread) { |
888 | if (td->runstate == TD_EXITED) { | |
889 | td_set_runstate(td, TD_REAPED); | |
890 | goto reaped; | |
891 | } | |
892 | continue; | |
893 | } | |
a2f77c9f JA |
894 | |
895 | flags = WNOHANG; | |
896 | if (td->runstate == TD_EXITED) | |
897 | flags = 0; | |
898 | ||
899 | /* | |
900 | * check if someone quit or got killed in an unusual way | |
901 | */ | |
902 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 903 | if (ret < 0) { |
a2f77c9f JA |
904 | if (errno == ECHILD) { |
905 | log_err("fio: pid=%d disappeared %d\n", td->pid, td->runstate); | |
906 | td_set_runstate(td, TD_REAPED); | |
907 | goto reaped; | |
908 | } | |
909 | perror("waitpid"); | |
910 | } else if (ret == td->pid) { | |
911 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
912 | int sig = WTERMSIG(status); |
913 | ||
d9244941 JA |
914 | if (sig != SIGQUIT) |
915 | log_err("fio: pid=%d, got signal=%d\n", td->pid, sig); | |
fab6aa71 JA |
916 | td_set_runstate(td, TD_REAPED); |
917 | goto reaped; | |
918 | } | |
a2f77c9f JA |
919 | if (WIFEXITED(status)) { |
920 | if (WEXITSTATUS(status) && !td->error) | |
921 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 922 | |
a2f77c9f JA |
923 | td_set_runstate(td, TD_REAPED); |
924 | goto reaped; | |
a6418147 JA |
925 | } |
926 | } | |
ebac4655 | 927 | |
a2f77c9f JA |
928 | /* |
929 | * thread is not dead, continue | |
930 | */ | |
931 | continue; | |
fab6aa71 | 932 | reaped: |
3707f45b JA |
933 | if (td->use_thread) { |
934 | long ret; | |
935 | ||
936 | if (pthread_join(td->thread, (void *) &ret)) | |
937 | perror("pthread_join"); | |
938 | } | |
939 | ||
ebac4655 JA |
940 | (*nr_running)--; |
941 | (*m_rate) -= td->ratemin; | |
942 | (*t_rate) -= td->rate; | |
a2f77c9f JA |
943 | |
944 | if (td->error) | |
945 | exit_value++; | |
ebac4655 | 946 | } |
b990b5c0 | 947 | |
4d2413c6 | 948 | if (*nr_running == cputhreads && !pending) |
390c40e2 | 949 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
950 | } |
951 | ||
906c8d75 JA |
952 | /* |
953 | * Main function for kicking off and reaping jobs, as needed. | |
954 | */ | |
ebac4655 JA |
955 | static void run_threads(void) |
956 | { | |
ebac4655 JA |
957 | struct thread_data *td; |
958 | unsigned long spent; | |
959 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 960 | |
2f9ade3c JA |
961 | if (fio_pin_memory()) |
962 | return; | |
ebac4655 | 963 | |
c6ae0a5b | 964 | if (!terse_output) { |
9cedf167 JA |
965 | printf("Starting "); |
966 | if (nr_thread) | |
967 | printf("%d thread%s", nr_thread, nr_thread > 1 ? "s" : ""); | |
968 | if (nr_process) { | |
969 | if (nr_thread) | |
970 | printf(" and "); | |
971 | printf("%d process%s", nr_process, nr_process > 1 ? "es" : ""); | |
972 | } | |
973 | printf("\n"); | |
c6ae0a5b JA |
974 | fflush(stdout); |
975 | } | |
c04f7ec3 | 976 | |
4efa970e JA |
977 | signal(SIGINT, sig_handler); |
978 | signal(SIGALRM, sig_handler); | |
979 | ||
ebac4655 JA |
980 | todo = thread_number; |
981 | nr_running = 0; | |
982 | nr_started = 0; | |
983 | m_rate = t_rate = 0; | |
984 | ||
34572e28 | 985 | for_each_td(td, i) { |
263e529f | 986 | print_status_init(td->thread_number - 1); |
ebac4655 | 987 | |
380cf265 JA |
988 | if (!td->create_serialize) { |
989 | init_disk_util(td); | |
ebac4655 | 990 | continue; |
380cf265 | 991 | } |
ebac4655 JA |
992 | |
993 | /* | |
994 | * do file setup here so it happens sequentially, | |
995 | * we don't want X number of threads getting their | |
996 | * client data interspersed on disk | |
997 | */ | |
53cdc686 | 998 | if (setup_files(td)) { |
5bf13a5a JA |
999 | exit_value++; |
1000 | if (td->error) | |
1001 | log_err("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
ebac4655 JA |
1002 | td_set_runstate(td, TD_REAPED); |
1003 | todo--; | |
1004 | } | |
380cf265 JA |
1005 | |
1006 | init_disk_util(td); | |
ebac4655 JA |
1007 | } |
1008 | ||
a2f77c9f JA |
1009 | set_genesis_time(); |
1010 | ||
ebac4655 | 1011 | while (todo) { |
75154845 JA |
1012 | struct thread_data *map[MAX_JOBS]; |
1013 | struct timeval this_start; | |
1014 | int this_jobs = 0, left; | |
1015 | ||
ebac4655 JA |
1016 | /* |
1017 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1018 | */ | |
34572e28 | 1019 | for_each_td(td, i) { |
ebac4655 JA |
1020 | if (td->runstate != TD_NOT_CREATED) |
1021 | continue; | |
1022 | ||
1023 | /* | |
1024 | * never got a chance to start, killed by other | |
1025 | * thread for some reason | |
1026 | */ | |
1027 | if (td->terminate) { | |
1028 | todo--; | |
1029 | continue; | |
1030 | } | |
1031 | ||
1032 | if (td->start_delay) { | |
263e529f | 1033 | spent = mtime_since_genesis(); |
ebac4655 JA |
1034 | |
1035 | if (td->start_delay * 1000 > spent) | |
1036 | continue; | |
1037 | } | |
1038 | ||
1039 | if (td->stonewall && (nr_started || nr_running)) | |
1040 | break; | |
1041 | ||
75154845 JA |
1042 | /* |
1043 | * Set state to created. Thread will transition | |
1044 | * to TD_INITIALIZED when it's done setting up. | |
1045 | */ | |
ebac4655 | 1046 | td_set_runstate(td, TD_CREATED); |
75154845 | 1047 | map[this_jobs++] = td; |
ebac4655 JA |
1048 | nr_started++; |
1049 | ||
1050 | if (td->use_thread) { | |
1051 | if (pthread_create(&td->thread, NULL, thread_main, td)) { | |
1052 | perror("thread_create"); | |
1053 | nr_started--; | |
c8bb6faf | 1054 | break; |
ebac4655 JA |
1055 | } |
1056 | } else { | |
07739b57 | 1057 | if (!fork()) { |
a6418147 JA |
1058 | int ret = fork_main(shm_id, i); |
1059 | ||
1060 | exit(ret); | |
ebac4655 JA |
1061 | } |
1062 | } | |
07739b57 | 1063 | fio_sem_down(startup_sem); |
ebac4655 JA |
1064 | } |
1065 | ||
1066 | /* | |
75154845 JA |
1067 | * Wait for the started threads to transition to |
1068 | * TD_INITIALIZED. | |
ebac4655 | 1069 | */ |
02bcaa8c | 1070 | fio_gettime(&this_start, NULL); |
75154845 | 1071 | left = this_jobs; |
6ce15a32 | 1072 | while (left && !fio_abort) { |
75154845 JA |
1073 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1074 | break; | |
1075 | ||
1076 | usleep(100000); | |
1077 | ||
1078 | for (i = 0; i < this_jobs; i++) { | |
1079 | td = map[i]; | |
1080 | if (!td) | |
1081 | continue; | |
b6f4d880 | 1082 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1083 | map[i] = NULL; |
1084 | left--; | |
b6f4d880 JA |
1085 | } else if (td->runstate >= TD_EXITED) { |
1086 | map[i] = NULL; | |
1087 | left--; | |
1088 | todo--; | |
1089 | nr_running++; /* work-around... */ | |
75154845 JA |
1090 | } |
1091 | } | |
1092 | } | |
1093 | ||
1094 | if (left) { | |
3b70d7e5 | 1095 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1096 | for (i = 0; i < this_jobs; i++) { |
1097 | td = map[i]; | |
1098 | if (!td) | |
1099 | continue; | |
1100 | kill(td->pid, SIGTERM); | |
1101 | } | |
1102 | break; | |
1103 | } | |
1104 | ||
1105 | /* | |
b6f4d880 | 1106 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1107 | */ |
34572e28 | 1108 | for_each_td(td, i) { |
75154845 | 1109 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1110 | continue; |
1111 | ||
1112 | td_set_runstate(td, TD_RUNNING); | |
1113 | nr_running++; | |
1114 | nr_started--; | |
1115 | m_rate += td->ratemin; | |
1116 | t_rate += td->rate; | |
75154845 | 1117 | todo--; |
07739b57 | 1118 | fio_sem_up(td->mutex); |
ebac4655 JA |
1119 | } |
1120 | ||
1121 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1122 | ||
1123 | if (todo) | |
1124 | usleep(100000); | |
1125 | } | |
1126 | ||
1127 | while (nr_running) { | |
1128 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1129 | usleep(10000); | |
1130 | } | |
1131 | ||
1132 | update_io_ticks(); | |
2f9ade3c | 1133 | fio_unpin_memory(); |
ebac4655 JA |
1134 | } |
1135 | ||
ebac4655 JA |
1136 | int main(int argc, char *argv[]) |
1137 | { | |
29d610e1 JA |
1138 | long ps; |
1139 | ||
dbe1125e JA |
1140 | /* |
1141 | * We need locale for number printing, if it isn't set then just | |
1142 | * go with the US format. | |
1143 | */ | |
1144 | if (!getenv("LC_NUMERIC")) | |
1145 | setlocale(LC_NUMERIC, "en_US"); | |
1146 | ||
ebac4655 JA |
1147 | if (parse_options(argc, argv)) |
1148 | return 1; | |
1149 | ||
1150 | if (!thread_number) { | |
3b70d7e5 | 1151 | log_err("Nothing to do\n"); |
ebac4655 JA |
1152 | return 1; |
1153 | } | |
1154 | ||
29d610e1 JA |
1155 | ps = sysconf(_SC_PAGESIZE); |
1156 | if (ps < 0) { | |
1157 | log_err("Failed to get page size\n"); | |
1158 | return 1; | |
1159 | } | |
1160 | ||
1161 | page_mask = ps - 1; | |
1162 | ||
bb3884d8 JA |
1163 | if (write_bw_log) { |
1164 | setup_log(&agg_io_log[DDIR_READ]); | |
1165 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1166 | } | |
1167 | ||
07739b57 JA |
1168 | startup_sem = fio_sem_init(0); |
1169 | ||
a2f77c9f JA |
1170 | set_genesis_time(); |
1171 | ||
ebac4655 JA |
1172 | disk_util_timer_arm(); |
1173 | ||
1174 | run_threads(); | |
6ce15a32 | 1175 | |
bb3884d8 | 1176 | if (!fio_abort) { |
6ce15a32 | 1177 | show_run_stats(); |
bb3884d8 JA |
1178 | if (write_bw_log) { |
1179 | __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log"); | |
1180 | __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log"); | |
1181 | } | |
1182 | } | |
ebac4655 | 1183 | |
07739b57 | 1184 | fio_sem_remove(startup_sem); |
437c9b71 | 1185 | return exit_value; |
ebac4655 | 1186 | } |