Commit | Line | Data |
---|---|---|
ebac4655 JA |
1 | /* |
2 | * fio - the flexible io tester | |
3 | * | |
4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> | |
aae22ca7 | 5 | * Copyright (C) 2006 Jens Axboe <axboe@kernel.dk> |
ebac4655 | 6 | * |
8e9fe637 JA |
7 | * The license below covers all files distributed with fio unless otherwise |
8 | * noted in the file itself. | |
9 | * | |
ebac4655 | 10 | * This program is free software; you can redistribute it and/or modify |
8e9fe637 JA |
11 | * it under the terms of the GNU General Public License version 2 as |
12 | * published by the Free Software Foundation. | |
ebac4655 JA |
13 | * |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | * | |
23 | */ | |
ebac4655 JA |
24 | #include <unistd.h> |
25 | #include <fcntl.h> | |
26 | #include <string.h> | |
ebac4655 JA |
27 | #include <signal.h> |
28 | #include <time.h> | |
dbe1125e | 29 | #include <locale.h> |
36167d82 | 30 | #include <assert.h> |
ebac4655 JA |
31 | #include <sys/stat.h> |
32 | #include <sys/wait.h> | |
33 | #include <sys/ipc.h> | |
34 | #include <sys/shm.h> | |
ebac4655 JA |
35 | #include <sys/mman.h> |
36 | ||
37 | #include "fio.h" | |
210f43b3 | 38 | #include "hash.h" |
ebac4655 | 39 | |
cfc99db7 JA |
40 | unsigned long page_mask; |
41 | unsigned long page_size; | |
29d610e1 JA |
42 | #define ALIGN(buf) \ |
43 | (char *) (((unsigned long) (buf) + page_mask) & ~page_mask) | |
ebac4655 JA |
44 | |
45 | int groupid = 0; | |
46 | int thread_number = 0; | |
9cedf167 JA |
47 | int nr_process = 0; |
48 | int nr_thread = 0; | |
ebac4655 | 49 | int shm_id = 0; |
53cdc686 | 50 | int temp_stall_ts; |
ebac4655 | 51 | |
07739b57 | 52 | static struct fio_sem *startup_sem; |
6ce15a32 | 53 | static volatile int fio_abort; |
437c9b71 | 54 | static int exit_value; |
ebac4655 | 55 | |
bb3884d8 JA |
56 | struct io_log *agg_io_log[2]; |
57 | ||
ebac4655 | 58 | #define TERMINATE_ALL (-1) |
75154845 | 59 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 | 60 | |
6ce15a32 JA |
61 | static inline void td_set_runstate(struct thread_data *td, int runstate) |
62 | { | |
63 | td->runstate = runstate; | |
64 | } | |
65 | ||
390c40e2 | 66 | static void terminate_threads(int group_id) |
ebac4655 | 67 | { |
34572e28 | 68 | struct thread_data *td; |
ebac4655 JA |
69 | int i; |
70 | ||
34572e28 | 71 | for_each_td(td, i) { |
ebac4655 | 72 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
7a93ab19 JA |
73 | /* |
74 | * if the thread is running, just let it exit | |
75 | */ | |
76 | if (td->runstate < TD_RUNNING) | |
c1302d44 | 77 | kill(td->pid, SIGQUIT); |
ebac4655 | 78 | td->terminate = 1; |
2dc1bbeb | 79 | td->o.start_delay = 0; |
ebac4655 JA |
80 | } |
81 | } | |
82 | } | |
83 | ||
84 | static void sig_handler(int sig) | |
85 | { | |
86 | switch (sig) { | |
87 | case SIGALRM: | |
88 | update_io_ticks(); | |
89 | disk_util_timer_arm(); | |
90 | print_thread_status(); | |
91 | break; | |
92 | default: | |
6ce15a32 | 93 | printf("\nfio: terminating on signal %d\n", sig); |
ebac4655 | 94 | fflush(stdout); |
390c40e2 | 95 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
96 | break; |
97 | } | |
98 | } | |
99 | ||
906c8d75 JA |
100 | /* |
101 | * Check if we are above the minimum rate given. | |
102 | */ | |
ebac4655 JA |
103 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
104 | { | |
0904200b | 105 | unsigned long long bytes = 0; |
4e991c23 | 106 | unsigned long iops = 0; |
ebac4655 JA |
107 | unsigned long spent; |
108 | unsigned long rate; | |
ebac4655 | 109 | |
780bf1a1 JA |
110 | /* |
111 | * No minimum rate set, always ok | |
112 | */ | |
2dc1bbeb | 113 | if (!td->o.ratemin && !td->o.rate_iops_min) |
780bf1a1 JA |
114 | return 0; |
115 | ||
ebac4655 JA |
116 | /* |
117 | * allow a 2 second settle period in the beginning | |
118 | */ | |
119 | if (mtime_since(&td->start, now) < 2000) | |
120 | return 0; | |
121 | ||
4e991c23 JA |
122 | if (td_read(td)) { |
123 | iops += td->io_blocks[DDIR_READ]; | |
0904200b | 124 | bytes += td->this_io_bytes[DDIR_READ]; |
4e991c23 JA |
125 | } |
126 | if (td_write(td)) { | |
127 | iops += td->io_blocks[DDIR_WRITE]; | |
0904200b | 128 | bytes += td->this_io_bytes[DDIR_WRITE]; |
4e991c23 | 129 | } |
0904200b | 130 | |
ebac4655 JA |
131 | /* |
132 | * if rate blocks is set, sample is running | |
133 | */ | |
4e991c23 | 134 | if (td->rate_bytes || td->rate_blocks) { |
ebac4655 | 135 | spent = mtime_since(&td->lastrate, now); |
2dc1bbeb | 136 | if (spent < td->o.ratecycle) |
ebac4655 JA |
137 | return 0; |
138 | ||
2dc1bbeb | 139 | if (td->o.rate) { |
4e991c23 JA |
140 | /* |
141 | * check bandwidth specified rate | |
142 | */ | |
143 | if (bytes < td->rate_bytes) { | |
2dc1bbeb | 144 | log_err("%s: min rate %u not met\n", td->o.name, td->o.ratemin); |
4e991c23 JA |
145 | return 1; |
146 | } else { | |
147 | rate = (bytes - td->rate_bytes) / spent; | |
2dc1bbeb JA |
148 | if (rate < td->o.ratemin || bytes < td->rate_bytes) { |
149 | log_err("%s: min rate %u not met, got %luKiB/sec\n", td->o.name, td->o.ratemin, rate); | |
4e991c23 JA |
150 | return 1; |
151 | } | |
152 | } | |
413dd459 | 153 | } else { |
4e991c23 JA |
154 | /* |
155 | * checks iops specified rate | |
156 | */ | |
2dc1bbeb JA |
157 | if (iops < td->o.rate_iops) { |
158 | log_err("%s: min iops rate %u not met\n", td->o.name, td->o.rate_iops); | |
413dd459 | 159 | return 1; |
4e991c23 JA |
160 | } else { |
161 | rate = (iops - td->rate_blocks) / spent; | |
2dc1bbeb JA |
162 | if (rate < td->o.rate_iops_min || iops < td->rate_blocks) { |
163 | log_err("%s: min iops rate %u not met, got %lu\n", td->o.name, td->o.rate_iops_min, rate); | |
4e991c23 | 164 | } |
413dd459 | 165 | } |
ebac4655 JA |
166 | } |
167 | } | |
168 | ||
0904200b | 169 | td->rate_bytes = bytes; |
4e991c23 | 170 | td->rate_blocks = iops; |
ebac4655 JA |
171 | memcpy(&td->lastrate, now, sizeof(*now)); |
172 | return 0; | |
173 | } | |
174 | ||
175 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
176 | { | |
2dc1bbeb | 177 | if (!td->o.timeout) |
ebac4655 | 178 | return 0; |
2dc1bbeb | 179 | if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) |
ebac4655 JA |
180 | return 1; |
181 | ||
182 | return 0; | |
183 | } | |
184 | ||
906c8d75 JA |
185 | /* |
186 | * When job exits, we can cancel the in-flight IO if we are using async | |
187 | * io. Attempt to do so. | |
188 | */ | |
ebac4655 JA |
189 | static void cleanup_pending_aio(struct thread_data *td) |
190 | { | |
ebac4655 | 191 | struct list_head *entry, *n; |
ebac4655 JA |
192 | struct io_u *io_u; |
193 | int r; | |
194 | ||
195 | /* | |
196 | * get immediately available events, if any | |
197 | */ | |
d7762cf8 | 198 | r = io_u_queued_complete(td, 0); |
b2fdda43 JA |
199 | if (r < 0) |
200 | return; | |
ebac4655 JA |
201 | |
202 | /* | |
203 | * now cancel remaining active events | |
204 | */ | |
2866c82d | 205 | if (td->io_ops->cancel) { |
ebac4655 JA |
206 | list_for_each_safe(entry, n, &td->io_u_busylist) { |
207 | io_u = list_entry(entry, struct io_u, list); | |
208 | ||
0c6e7517 JA |
209 | /* |
210 | * if the io_u isn't in flight, then that generally | |
211 | * means someone leaked an io_u. complain but fix | |
212 | * it up, so we don't stall here. | |
213 | */ | |
214 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
215 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 216 | put_io_u(td, io_u); |
0c6e7517 JA |
217 | } else { |
218 | r = td->io_ops->cancel(td, io_u); | |
219 | if (!r) | |
220 | put_io_u(td, io_u); | |
221 | } | |
ebac4655 JA |
222 | } |
223 | } | |
224 | ||
97601024 | 225 | if (td->cur_depth) |
d7762cf8 | 226 | r = io_u_queued_complete(td, td->cur_depth); |
ebac4655 JA |
227 | } |
228 | ||
858a3d47 JA |
229 | /* |
230 | * Helper to handle the final sync of a file. Works just like the normal | |
231 | * io path, just does everything sync. | |
232 | */ | |
233 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
234 | { | |
235 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
236 | int ret; |
237 | ||
238 | if (!io_u) | |
239 | return 1; | |
240 | ||
241 | io_u->ddir = DDIR_SYNC; | |
242 | io_u->file = f; | |
243 | ||
244 | if (td_io_prep(td, io_u)) { | |
245 | put_io_u(td, io_u); | |
246 | return 1; | |
247 | } | |
248 | ||
755200a3 | 249 | requeue: |
858a3d47 | 250 | ret = td_io_queue(td, io_u); |
36167d82 | 251 | if (ret < 0) { |
e1161c32 | 252 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 253 | put_io_u(td, io_u); |
858a3d47 | 254 | return 1; |
36167d82 | 255 | } else if (ret == FIO_Q_QUEUED) { |
d7762cf8 | 256 | if (io_u_queued_complete(td, 1) < 0) |
36167d82 | 257 | return 1; |
36167d82 JA |
258 | } else if (ret == FIO_Q_COMPLETED) { |
259 | if (io_u->error) { | |
e1161c32 | 260 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
261 | return 1; |
262 | } | |
858a3d47 | 263 | |
d7762cf8 | 264 | if (io_u_sync_complete(td, io_u) < 0) |
b2fdda43 | 265 | return 1; |
755200a3 JA |
266 | } else if (ret == FIO_Q_BUSY) { |
267 | if (td_io_commit(td)) | |
268 | return 1; | |
269 | goto requeue; | |
858a3d47 JA |
270 | } |
271 | ||
272 | return 0; | |
273 | } | |
274 | ||
906c8d75 | 275 | /* |
34403fb1 | 276 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
277 | * reads the blocks back in, and checks the crc/md5 of the data. |
278 | */ | |
1e97cce9 | 279 | static void do_verify(struct thread_data *td) |
ebac4655 | 280 | { |
53cdc686 | 281 | struct fio_file *f; |
36167d82 | 282 | struct io_u *io_u; |
af52b345 JA |
283 | int ret, min_events; |
284 | unsigned int i; | |
e5b401d4 JA |
285 | |
286 | /* | |
287 | * sync io first and invalidate cache, to make sure we really | |
288 | * read from disk. | |
289 | */ | |
290 | for_each_file(td, f, i) { | |
3d7b485f JA |
291 | if (!(f->flags & FIO_FILE_OPEN)) |
292 | continue; | |
b2fdda43 JA |
293 | if (fio_io_sync(td, f)) |
294 | break; | |
295 | if (file_invalidate_cache(td, f)) | |
296 | break; | |
e5b401d4 | 297 | } |
ebac4655 | 298 | |
b2fdda43 JA |
299 | if (td->error) |
300 | return; | |
301 | ||
ebac4655 JA |
302 | td_set_runstate(td, TD_VERIFYING); |
303 | ||
36167d82 JA |
304 | io_u = NULL; |
305 | while (!td->terminate) { | |
5451792e JA |
306 | int ret2; |
307 | ||
ebac4655 JA |
308 | io_u = __get_io_u(td); |
309 | if (!io_u) | |
310 | break; | |
311 | ||
069c2918 JA |
312 | if (runtime_exceeded(td, &io_u->start_time)) { |
313 | put_io_u(td, io_u); | |
90a87d4b | 314 | td->terminate = 1; |
02bcaa8c | 315 | break; |
069c2918 | 316 | } |
02bcaa8c | 317 | |
069c2918 JA |
318 | if (get_next_verify(td, io_u)) { |
319 | put_io_u(td, io_u); | |
ebac4655 | 320 | break; |
069c2918 | 321 | } |
ebac4655 | 322 | |
069c2918 JA |
323 | if (td_io_prep(td, io_u)) { |
324 | put_io_u(td, io_u); | |
53cdc686 | 325 | break; |
069c2918 | 326 | } |
d7762cf8 JA |
327 | |
328 | io_u->end_io = verify_io_u; | |
53cdc686 | 329 | |
11786802 | 330 | ret = td_io_queue(td, io_u); |
36167d82 JA |
331 | switch (ret) { |
332 | case FIO_Q_COMPLETED: | |
333 | if (io_u->error) | |
22819ec2 | 334 | ret = -io_u->error; |
9e9d164e | 335 | else if (io_u->resid) { |
36167d82 | 336 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 337 | struct fio_file *f = io_u->file; |
ebac4655 | 338 | |
9e9d164e JA |
339 | /* |
340 | * zero read, fail | |
341 | */ | |
342 | if (!bytes) { | |
343 | td_verror(td, ENODATA, "full resid"); | |
344 | put_io_u(td, io_u); | |
345 | break; | |
346 | } | |
8400d9b2 | 347 | |
36167d82 JA |
348 | io_u->xfer_buflen = io_u->resid; |
349 | io_u->xfer_buf += bytes; | |
8400d9b2 | 350 | io_u->offset += bytes; |
d460eb31 | 351 | f->last_completed_pos = io_u->offset; |
8400d9b2 | 352 | |
30061b97 JA |
353 | td->ts.short_io_u[io_u->ddir]++; |
354 | ||
d460eb31 | 355 | if (io_u->offset == f->real_file_size) |
8400d9b2 JA |
356 | goto sync_done; |
357 | ||
11786802 JA |
358 | requeue_io_u(td, &io_u); |
359 | } else { | |
8400d9b2 | 360 | sync_done: |
11786802 JA |
361 | ret = io_u_sync_complete(td, io_u); |
362 | if (ret < 0) | |
363 | break; | |
36167d82 | 364 | } |
36167d82 JA |
365 | continue; |
366 | case FIO_Q_QUEUED: | |
367 | break; | |
755200a3 JA |
368 | case FIO_Q_BUSY: |
369 | requeue_io_u(td, &io_u); | |
5451792e JA |
370 | ret2 = td_io_commit(td); |
371 | if (ret2 < 0) | |
372 | ret = ret2; | |
755200a3 | 373 | break; |
36167d82 JA |
374 | default: |
375 | assert(ret < 0); | |
e1161c32 | 376 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
377 | break; |
378 | } | |
379 | ||
99784632 | 380 | if (ret < 0 || td->error) |
3af6ef39 JA |
381 | break; |
382 | ||
ebac4655 | 383 | /* |
3af6ef39 JA |
384 | * if we can queue more, do so. but check if there are |
385 | * completed io_u's first. | |
ebac4655 | 386 | */ |
97601024 | 387 | min_events = 0; |
e916b390 | 388 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
3af6ef39 | 389 | min_events = 1; |
3af6ef39 | 390 | |
2dc1bbeb JA |
391 | if (td->cur_depth > td->o.iodepth_low) |
392 | min_events = td->cur_depth - td->o.iodepth_low; | |
e916b390 JA |
393 | } |
394 | ||
3af6ef39 JA |
395 | /* |
396 | * Reap required number of io units, if any, and do the | |
397 | * verification on them through the callback handler | |
398 | */ | |
d7762cf8 | 399 | if (io_u_queued_complete(td, min_events) < 0) |
ebac4655 | 400 | break; |
36167d82 | 401 | } |
ebac4655 | 402 | |
c01c0395 JA |
403 | if (!td->error) { |
404 | min_events = td->cur_depth; | |
405 | ||
406 | if (min_events) | |
407 | ret = io_u_queued_complete(td, min_events); | |
408 | } else | |
ebac4655 JA |
409 | cleanup_pending_aio(td); |
410 | ||
411 | td_set_runstate(td, TD_RUNNING); | |
412 | } | |
413 | ||
32cd46a0 | 414 | /* |
906c8d75 | 415 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
416 | * and reaps them, checking for rate and errors along the way. |
417 | */ | |
ebac4655 JA |
418 | static void do_io(struct thread_data *td) |
419 | { | |
02bcaa8c | 420 | struct timeval s; |
ebac4655 | 421 | unsigned long usec; |
af52b345 JA |
422 | unsigned int i; |
423 | int ret = 0; | |
ebac4655 | 424 | |
5853e5a8 JA |
425 | td_set_runstate(td, TD_RUNNING); |
426 | ||
7bb48f84 | 427 | while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) { |
97601024 JA |
428 | struct timeval comp_time; |
429 | long bytes_done = 0; | |
84585003 | 430 | int min_evts = 0; |
ebac4655 | 431 | struct io_u *io_u; |
5451792e | 432 | int ret2; |
ebac4655 JA |
433 | |
434 | if (td->terminate) | |
435 | break; | |
436 | ||
3d7c391d | 437 | io_u = get_io_u(td); |
ebac4655 JA |
438 | if (!io_u) |
439 | break; | |
440 | ||
441 | memcpy(&s, &io_u->start_time, sizeof(s)); | |
97601024 JA |
442 | |
443 | if (runtime_exceeded(td, &s)) { | |
444 | put_io_u(td, io_u); | |
90a87d4b | 445 | td->terminate = 1; |
97601024 JA |
446 | break; |
447 | } | |
36167d82 | 448 | |
11786802 | 449 | ret = td_io_queue(td, io_u); |
36167d82 JA |
450 | switch (ret) { |
451 | case FIO_Q_COMPLETED: | |
5451792e JA |
452 | if (io_u->error) |
453 | ret = -io_u->error; | |
9e9d164e | 454 | else if (io_u->resid) { |
36167d82 | 455 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 456 | struct fio_file *f = io_u->file; |
36167d82 | 457 | |
9e9d164e JA |
458 | /* |
459 | * zero read, fail | |
460 | */ | |
461 | if (!bytes) { | |
462 | td_verror(td, ENODATA, "full resid"); | |
463 | put_io_u(td, io_u); | |
464 | break; | |
465 | } | |
466 | ||
cec6b55d | 467 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 468 | io_u->xfer_buf += bytes; |
5a7c5680 | 469 | io_u->offset += bytes; |
d460eb31 | 470 | f->last_completed_pos = io_u->offset; |
5a7c5680 | 471 | |
30061b97 JA |
472 | td->ts.short_io_u[io_u->ddir]++; |
473 | ||
d460eb31 | 474 | if (io_u->offset == f->real_file_size) |
5a7c5680 JA |
475 | goto sync_done; |
476 | ||
11786802 JA |
477 | requeue_io_u(td, &io_u); |
478 | } else { | |
5a7c5680 | 479 | sync_done: |
11786802 JA |
480 | fio_gettime(&comp_time, NULL); |
481 | bytes_done = io_u_sync_complete(td, io_u); | |
482 | if (bytes_done < 0) | |
483 | ret = bytes_done; | |
cec6b55d | 484 | } |
36167d82 JA |
485 | break; |
486 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
487 | /* |
488 | * if the engine doesn't have a commit hook, | |
489 | * the io_u is really queued. if it does have such | |
490 | * a hook, it has to call io_u_queued() itself. | |
491 | */ | |
492 | if (td->io_ops->commit == NULL) | |
493 | io_u_queued(td, io_u); | |
36167d82 | 494 | break; |
755200a3 JA |
495 | case FIO_Q_BUSY: |
496 | requeue_io_u(td, &io_u); | |
5451792e JA |
497 | ret2 = td_io_commit(td); |
498 | if (ret2 < 0) | |
499 | ret = ret2; | |
755200a3 | 500 | break; |
36167d82 JA |
501 | default: |
502 | assert(ret < 0); | |
503 | put_io_u(td, io_u); | |
504 | break; | |
ebac4655 JA |
505 | } |
506 | ||
99784632 | 507 | if (ret < 0 || td->error) |
36167d82 JA |
508 | break; |
509 | ||
97601024 JA |
510 | /* |
511 | * See if we need to complete some commands | |
512 | */ | |
755200a3 | 513 | if (ret == FIO_Q_QUEUED || ret == FIO_Q_BUSY) { |
97601024 | 514 | min_evts = 0; |
e916b390 | 515 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
36167d82 | 516 | min_evts = 1; |
ebac4655 | 517 | |
2dc1bbeb JA |
518 | if (td->cur_depth > td->o.iodepth_low) |
519 | min_evts = td->cur_depth - td->o.iodepth_low; | |
e916b390 JA |
520 | } |
521 | ||
97601024 | 522 | fio_gettime(&comp_time, NULL); |
d7762cf8 | 523 | bytes_done = io_u_queued_complete(td, min_evts); |
97601024 | 524 | if (bytes_done < 0) |
36167d82 | 525 | break; |
ebac4655 JA |
526 | } |
527 | ||
97601024 JA |
528 | if (!bytes_done) |
529 | continue; | |
530 | ||
ebac4655 JA |
531 | /* |
532 | * the rate is batched for now, it should work for batches | |
533 | * of completions except the very first one which may look | |
534 | * a little bursty | |
535 | */ | |
97601024 | 536 | usec = utime_since(&s, &comp_time); |
ebac4655 | 537 | |
413dd459 | 538 | rate_throttle(td, usec, bytes_done); |
ebac4655 | 539 | |
97601024 | 540 | if (check_min_rate(td, &comp_time)) { |
98aa62d8 | 541 | if (exitall_on_terminate) |
390c40e2 | 542 | terminate_threads(td->groupid); |
e1161c32 | 543 | td_verror(td, ENODATA, "check_min_rate"); |
ebac4655 JA |
544 | break; |
545 | } | |
546 | ||
2dc1bbeb | 547 | if (td->o.thinktime) { |
9c1f7434 JA |
548 | unsigned long long b; |
549 | ||
550 | b = td->io_blocks[0] + td->io_blocks[1]; | |
2dc1bbeb | 551 | if (!(b % td->o.thinktime_blocks)) { |
48097d5c JA |
552 | int left; |
553 | ||
2dc1bbeb JA |
554 | if (td->o.thinktime_spin) |
555 | __usec_sleep(td->o.thinktime_spin); | |
48097d5c | 556 | |
2dc1bbeb | 557 | left = td->o.thinktime - td->o.thinktime_spin; |
48097d5c JA |
558 | if (left) |
559 | usec_sleep(td, left); | |
560 | } | |
9c1f7434 | 561 | } |
ebac4655 JA |
562 | } |
563 | ||
4d2413c6 | 564 | if (!td->error) { |
3d7c391d JA |
565 | struct fio_file *f; |
566 | ||
c01c0395 JA |
567 | i = td->cur_depth; |
568 | if (i) | |
569 | ret = io_u_queued_complete(td, i); | |
ebac4655 | 570 | |
2dc1bbeb | 571 | if (should_fsync(td) && td->o.end_fsync) { |
84585003 | 572 | td_set_runstate(td, TD_FSYNCING); |
3d7b485f JA |
573 | |
574 | for_each_file(td, f, i) { | |
575 | if (!(f->flags & FIO_FILE_OPEN)) | |
576 | continue; | |
858a3d47 | 577 | fio_io_sync(td, f); |
3d7b485f | 578 | } |
84585003 | 579 | } |
c01c0395 JA |
580 | } else |
581 | cleanup_pending_aio(td); | |
ebac4655 JA |
582 | } |
583 | ||
ebac4655 JA |
584 | static void cleanup_io_u(struct thread_data *td) |
585 | { | |
586 | struct list_head *entry, *n; | |
587 | struct io_u *io_u; | |
588 | ||
589 | list_for_each_safe(entry, n, &td->io_u_freelist) { | |
590 | io_u = list_entry(entry, struct io_u, list); | |
591 | ||
592 | list_del(&io_u->list); | |
593 | free(io_u); | |
594 | } | |
595 | ||
2f9ade3c | 596 | free_io_mem(td); |
ebac4655 JA |
597 | } |
598 | ||
6b9cea23 JA |
599 | /* |
600 | * "randomly" fill the buffer contents | |
601 | */ | |
e9459e5a | 602 | static void fill_io_buf(struct thread_data *td, struct io_u *io_u, int max_bs) |
6b9cea23 | 603 | { |
210f43b3 | 604 | long *ptr = io_u->buf; |
6b9cea23 | 605 | |
e9459e5a JA |
606 | if (!td->o.zero_buffers) { |
607 | while ((void *) ptr - io_u->buf < max_bs) { | |
210f43b3 | 608 | *ptr = rand() * GOLDEN_RATIO_PRIME; |
e9459e5a JA |
609 | ptr++; |
610 | } | |
611 | } else | |
612 | memset(ptr, 0, max_bs); | |
6b9cea23 JA |
613 | } |
614 | ||
ebac4655 JA |
615 | static int init_io_u(struct thread_data *td) |
616 | { | |
2b4ce34f | 617 | unsigned long long buf_size; |
ebac4655 | 618 | struct io_u *io_u; |
a00735e6 | 619 | unsigned int max_bs; |
ebac4655 JA |
620 | int i, max_units; |
621 | char *p; | |
622 | ||
2866c82d | 623 | if (td->io_ops->flags & FIO_SYNCIO) |
ebac4655 JA |
624 | max_units = 1; |
625 | else | |
2dc1bbeb | 626 | max_units = td->o.iodepth; |
ebac4655 | 627 | |
2dc1bbeb | 628 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
2b4ce34f JA |
629 | buf_size = (unsigned long long) max_bs * (unsigned long long) max_units; |
630 | buf_size += page_mask; | |
631 | if (buf_size != (size_t) buf_size) { | |
632 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
633 | return 1; | |
634 | } | |
635 | ||
636 | td->orig_buffer_size = buf_size; | |
74b025b0 | 637 | |
2dc1bbeb JA |
638 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) |
639 | td->orig_buffer_size = (td->orig_buffer_size + td->o.hugepage_size - 1) & ~(td->o.hugepage_size - 1); | |
4afbf66f JA |
640 | else if (td->orig_buffer_size & page_mask) |
641 | td->orig_buffer_size = (td->orig_buffer_size + page_mask) & ~page_mask; | |
ebac4655 | 642 | |
2f9ade3c JA |
643 | if (allocate_io_mem(td)) |
644 | return 1; | |
ebac4655 | 645 | |
ebac4655 JA |
646 | p = ALIGN(td->orig_buffer); |
647 | for (i = 0; i < max_units; i++) { | |
648 | io_u = malloc(sizeof(*io_u)); | |
649 | memset(io_u, 0, sizeof(*io_u)); | |
650 | INIT_LIST_HEAD(&io_u->list); | |
651 | ||
a00735e6 | 652 | io_u->buf = p + max_bs * i; |
e9459e5a | 653 | |
660a1cb5 | 654 | if (td_write(td)) |
e9459e5a | 655 | fill_io_buf(td, io_u, max_bs); |
6b9cea23 | 656 | |
b1ff3403 | 657 | io_u->index = i; |
0c6e7517 | 658 | io_u->flags = IO_U_F_FREE; |
ebac4655 JA |
659 | list_add(&io_u->list, &td->io_u_freelist); |
660 | } | |
661 | ||
433afcb4 JA |
662 | io_u_init_timeout(); |
663 | ||
ebac4655 JA |
664 | return 0; |
665 | } | |
666 | ||
da86774e JA |
667 | static int switch_ioscheduler(struct thread_data *td) |
668 | { | |
669 | char tmp[256], tmp2[128]; | |
670 | FILE *f; | |
671 | int ret; | |
672 | ||
ba0fbe10 | 673 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
674 | return 0; |
675 | ||
da86774e JA |
676 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
677 | ||
678 | f = fopen(tmp, "r+"); | |
679 | if (!f) { | |
cbf5c1d7 JA |
680 | if (errno == ENOENT) { |
681 | log_err("fio: os or kernel doesn't support IO scheduler switching\n"); | |
682 | return 0; | |
683 | } | |
684 | td_verror(td, errno, "fopen iosched"); | |
da86774e JA |
685 | return 1; |
686 | } | |
687 | ||
688 | /* | |
689 | * Set io scheduler. | |
690 | */ | |
2dc1bbeb | 691 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); |
da86774e | 692 | if (ferror(f) || ret != 1) { |
e1161c32 | 693 | td_verror(td, errno, "fwrite"); |
da86774e JA |
694 | fclose(f); |
695 | return 1; | |
696 | } | |
697 | ||
698 | rewind(f); | |
699 | ||
700 | /* | |
701 | * Read back and check that the selected scheduler is now the default. | |
702 | */ | |
703 | ret = fread(tmp, 1, sizeof(tmp), f); | |
704 | if (ferror(f) || ret < 0) { | |
e1161c32 | 705 | td_verror(td, errno, "fread"); |
da86774e JA |
706 | fclose(f); |
707 | return 1; | |
708 | } | |
709 | ||
2dc1bbeb | 710 | sprintf(tmp2, "[%s]", td->o.ioscheduler); |
da86774e | 711 | if (!strstr(tmp, tmp2)) { |
2dc1bbeb | 712 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); |
e1161c32 | 713 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
714 | fclose(f); |
715 | return 1; | |
716 | } | |
717 | ||
718 | fclose(f); | |
719 | return 0; | |
720 | } | |
721 | ||
a978ba68 | 722 | static int clear_io_state(struct thread_data *td) |
ebac4655 | 723 | { |
53cdc686 | 724 | struct fio_file *f; |
af52b345 JA |
725 | unsigned int i; |
726 | int ret; | |
ebac4655 | 727 | |
756867bd | 728 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 729 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 730 | td->zone_bytes = 0; |
d7d3b49b | 731 | td->rate_bytes = 0; |
4e991c23 | 732 | td->rate_blocks = 0; |
38d77cae | 733 | td->rw_end_set[0] = td->rw_end_set[1] = 0; |
ebac4655 | 734 | |
c1324df1 JA |
735 | td->last_was_sync = 0; |
736 | ||
a978ba68 JA |
737 | for_each_file(td, f, i) |
738 | td_io_close_file(td, f); | |
53cdc686 | 739 | |
a978ba68 JA |
740 | ret = 0; |
741 | for_each_file(td, f, i) { | |
742 | ret = td_io_open_file(td, f); | |
743 | if (ret) | |
744 | break; | |
53cdc686 | 745 | } |
a978ba68 JA |
746 | |
747 | return ret; | |
ebac4655 JA |
748 | } |
749 | ||
906c8d75 JA |
750 | /* |
751 | * Entry point for the thread based jobs. The process based jobs end up | |
752 | * here as well, after a little setup. | |
753 | */ | |
ebac4655 JA |
754 | static void *thread_main(void *data) |
755 | { | |
69008999 | 756 | unsigned long long runtime[2]; |
ebac4655 | 757 | struct thread_data *td = data; |
38d77cae | 758 | unsigned long elapsed; |
a978ba68 | 759 | int clear_state; |
ebac4655 | 760 | |
2dc1bbeb | 761 | if (!td->o.use_thread) |
ebac4655 JA |
762 | setsid(); |
763 | ||
764 | td->pid = getpid(); | |
765 | ||
aea47d44 JA |
766 | INIT_LIST_HEAD(&td->io_u_freelist); |
767 | INIT_LIST_HEAD(&td->io_u_busylist); | |
755200a3 | 768 | INIT_LIST_HEAD(&td->io_u_requeues); |
aea47d44 | 769 | INIT_LIST_HEAD(&td->io_log_list); |
8de8f047 | 770 | INIT_LIST_HEAD(&td->io_hist_list); |
bb5d7d0b | 771 | td->io_hist_tree = RB_ROOT; |
aea47d44 | 772 | |
ebac4655 | 773 | if (init_io_u(td)) |
bda4fd9e | 774 | goto err_sem; |
ebac4655 JA |
775 | |
776 | if (fio_setaffinity(td) == -1) { | |
e1161c32 | 777 | td_verror(td, errno, "cpu_set_affinity"); |
bda4fd9e | 778 | goto err_sem; |
ebac4655 JA |
779 | } |
780 | ||
aea47d44 | 781 | if (init_iolog(td)) |
bda4fd9e | 782 | goto err_sem; |
aea47d44 | 783 | |
ebac4655 JA |
784 | if (td->ioprio) { |
785 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { | |
e1161c32 | 786 | td_verror(td, errno, "ioprio_set"); |
bda4fd9e | 787 | goto err_sem; |
ebac4655 JA |
788 | } |
789 | } | |
790 | ||
2dc1bbeb | 791 | if (nice(td->o.nice) == -1) { |
e1161c32 | 792 | td_verror(td, errno, "nice"); |
bda4fd9e | 793 | goto err_sem; |
b6f4d880 JA |
794 | } |
795 | ||
2dc1bbeb | 796 | if (td->o.ioscheduler && switch_ioscheduler(td)) |
bda4fd9e | 797 | goto err_sem; |
da86774e | 798 | |
75154845 | 799 | td_set_runstate(td, TD_INITIALIZED); |
07739b57 JA |
800 | fio_sem_up(startup_sem); |
801 | fio_sem_down(td->mutex); | |
ebac4655 | 802 | |
37f56873 JA |
803 | /* |
804 | * the ->mutex semaphore is now no longer used, close it to avoid | |
805 | * eating a file descriptor | |
806 | */ | |
807 | fio_sem_remove(td->mutex); | |
808 | ||
2dc1bbeb | 809 | if (!td->o.create_serialize && setup_files(td)) |
ebac4655 JA |
810 | goto err; |
811 | ||
7d6c5283 JA |
812 | if (td_io_init(td)) |
813 | goto err; | |
814 | ||
b5af8293 JA |
815 | if (open_files(td)) |
816 | goto err; | |
817 | ||
68727076 JA |
818 | if (init_random_map(td)) |
819 | goto err; | |
820 | ||
2dc1bbeb JA |
821 | if (td->o.exec_prerun) { |
822 | if (system(td->o.exec_prerun) < 0) | |
69cfd7e0 JA |
823 | goto err; |
824 | } | |
4e0ba8af | 825 | |
69008999 | 826 | fio_gettime(&td->epoch, NULL); |
433afcb4 | 827 | memcpy(&td->timeout_end, &td->epoch, sizeof(td->epoch)); |
756867bd | 828 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 JA |
829 | |
830 | runtime[0] = runtime[1] = 0; | |
a978ba68 | 831 | clear_state = 0; |
cf4464ca | 832 | while (td->o.time_based || td->o.loops--) { |
02bcaa8c | 833 | fio_gettime(&td->start, NULL); |
756867bd | 834 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
ebac4655 | 835 | |
2dc1bbeb | 836 | if (td->o.ratemin) |
756867bd | 837 | memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate)); |
ebac4655 | 838 | |
a978ba68 JA |
839 | if (clear_state && clear_io_state(td)) |
840 | break; | |
841 | ||
ebac4655 JA |
842 | prune_io_piece_log(td); |
843 | ||
ba0fbe10 | 844 | do_io(td); |
ebac4655 | 845 | |
a978ba68 JA |
846 | clear_state = 1; |
847 | ||
38d77cae JA |
848 | if (td_read(td) && td->io_bytes[DDIR_READ]) { |
849 | if (td->rw_end_set[DDIR_READ]) | |
850 | elapsed = utime_since(&td->start, &td->rw_end[DDIR_READ]); | |
851 | else | |
852 | elapsed = utime_since_now(&td->start); | |
853 | ||
854 | runtime[DDIR_READ] += elapsed; | |
855 | } | |
856 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { | |
857 | if (td->rw_end_set[DDIR_WRITE]) | |
858 | elapsed = utime_since(&td->start, &td->rw_end[DDIR_WRITE]); | |
859 | else | |
860 | elapsed = utime_since_now(&td->start); | |
861 | ||
862 | runtime[DDIR_WRITE] += elapsed; | |
863 | } | |
413dd459 | 864 | |
ebac4655 JA |
865 | if (td->error || td->terminate) |
866 | break; | |
867 | ||
2dc1bbeb | 868 | if (td->o.verify == VERIFY_NONE) |
ebac4655 JA |
869 | continue; |
870 | ||
a978ba68 JA |
871 | if (clear_io_state(td)) |
872 | break; | |
873 | ||
02bcaa8c | 874 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
875 | |
876 | do_verify(td); | |
877 | ||
69008999 | 878 | runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
879 | |
880 | if (td->error || td->terminate) | |
881 | break; | |
882 | } | |
883 | ||
36dff966 | 884 | update_rusage_stat(td); |
756867bd JA |
885 | td->ts.runtime[0] = runtime[0] / 1000; |
886 | td->ts.runtime[1] = runtime[1] / 1000; | |
887 | td->ts.total_run_time = mtime_since_now(&td->epoch); | |
888 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
889 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
890 | ||
891 | if (td->ts.bw_log) | |
892 | finish_log(td, td->ts.bw_log, "bw"); | |
893 | if (td->ts.slat_log) | |
894 | finish_log(td, td->ts.slat_log, "slat"); | |
895 | if (td->ts.clat_log) | |
896 | finish_log(td, td->ts.clat_log, "clat"); | |
2dc1bbeb | 897 | if (td->o.write_iolog_file) |
843a7413 | 898 | write_iolog_close(td); |
2dc1bbeb JA |
899 | if (td->o.exec_postrun) { |
900 | if (system(td->o.exec_postrun) < 0) | |
901 | log_err("fio: postrun %s failed\n", td->o.exec_postrun); | |
69cfd7e0 | 902 | } |
ebac4655 JA |
903 | |
904 | if (exitall_on_terminate) | |
390c40e2 | 905 | terminate_threads(td->groupid); |
ebac4655 JA |
906 | |
907 | err: | |
5bf13a5a JA |
908 | if (td->error) |
909 | printf("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
53cdc686 | 910 | close_files(td); |
2866c82d | 911 | close_ioengine(td); |
ebac4655 | 912 | cleanup_io_u(td); |
d23bb327 | 913 | options_mem_free(td); |
ebac4655 | 914 | td_set_runstate(td, TD_EXITED); |
43d76807 | 915 | return (void *) (unsigned long) td->error; |
bda4fd9e JA |
916 | err_sem: |
917 | fio_sem_up(startup_sem); | |
918 | goto err; | |
ebac4655 JA |
919 | } |
920 | ||
906c8d75 JA |
921 | /* |
922 | * We cannot pass the td data into a forked process, so attach the td and | |
923 | * pass it to the thread worker. | |
924 | */ | |
a6418147 | 925 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
926 | { |
927 | struct thread_data *td; | |
a6418147 | 928 | void *data, *ret; |
ebac4655 JA |
929 | |
930 | data = shmat(shmid, NULL, 0); | |
931 | if (data == (void *) -1) { | |
a6418147 JA |
932 | int __err = errno; |
933 | ||
ebac4655 | 934 | perror("shmat"); |
a6418147 | 935 | return __err; |
ebac4655 JA |
936 | } |
937 | ||
938 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 939 | ret = thread_main(td); |
ebac4655 | 940 | shmdt(data); |
43d76807 | 941 | return (int) (unsigned long) ret; |
ebac4655 JA |
942 | } |
943 | ||
906c8d75 JA |
944 | /* |
945 | * Run over the job map and reap the threads that have exited, if any. | |
946 | */ | |
ebac4655 JA |
947 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
948 | { | |
34572e28 | 949 | struct thread_data *td; |
fab6aa71 | 950 | int i, cputhreads, pending, status, ret; |
ebac4655 JA |
951 | |
952 | /* | |
953 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
954 | */ | |
4d2413c6 | 955 | pending = cputhreads = 0; |
34572e28 | 956 | for_each_td(td, i) { |
3707f45b | 957 | int flags = 0; |
a2f77c9f | 958 | |
84585003 JA |
959 | /* |
960 | * ->io_ops is NULL for a thread that has closed its | |
961 | * io engine | |
962 | */ | |
ba0fbe10 | 963 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 JA |
964 | cputhreads++; |
965 | ||
a2f77c9f JA |
966 | if (!td->pid || td->runstate == TD_REAPED) |
967 | continue; | |
2dc1bbeb | 968 | if (td->o.use_thread) { |
3707f45b JA |
969 | if (td->runstate == TD_EXITED) { |
970 | td_set_runstate(td, TD_REAPED); | |
971 | goto reaped; | |
972 | } | |
973 | continue; | |
974 | } | |
a2f77c9f JA |
975 | |
976 | flags = WNOHANG; | |
977 | if (td->runstate == TD_EXITED) | |
978 | flags = 0; | |
979 | ||
980 | /* | |
981 | * check if someone quit or got killed in an unusual way | |
982 | */ | |
983 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 984 | if (ret < 0) { |
a2f77c9f JA |
985 | if (errno == ECHILD) { |
986 | log_err("fio: pid=%d disappeared %d\n", td->pid, td->runstate); | |
987 | td_set_runstate(td, TD_REAPED); | |
988 | goto reaped; | |
989 | } | |
990 | perror("waitpid"); | |
991 | } else if (ret == td->pid) { | |
992 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
993 | int sig = WTERMSIG(status); |
994 | ||
d9244941 JA |
995 | if (sig != SIGQUIT) |
996 | log_err("fio: pid=%d, got signal=%d\n", td->pid, sig); | |
fab6aa71 JA |
997 | td_set_runstate(td, TD_REAPED); |
998 | goto reaped; | |
999 | } | |
a2f77c9f JA |
1000 | if (WIFEXITED(status)) { |
1001 | if (WEXITSTATUS(status) && !td->error) | |
1002 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 1003 | |
a2f77c9f JA |
1004 | td_set_runstate(td, TD_REAPED); |
1005 | goto reaped; | |
a6418147 JA |
1006 | } |
1007 | } | |
ebac4655 | 1008 | |
a2f77c9f JA |
1009 | /* |
1010 | * thread is not dead, continue | |
1011 | */ | |
e48676ba | 1012 | pending++; |
a2f77c9f | 1013 | continue; |
fab6aa71 | 1014 | reaped: |
2dc1bbeb | 1015 | if (td->o.use_thread) { |
3707f45b JA |
1016 | long ret; |
1017 | ||
1018 | if (pthread_join(td->thread, (void *) &ret)) | |
1019 | perror("pthread_join"); | |
1020 | } | |
1021 | ||
ebac4655 | 1022 | (*nr_running)--; |
2dc1bbeb JA |
1023 | (*m_rate) -= td->o.ratemin; |
1024 | (*t_rate) -= td->o.rate; | |
e48676ba | 1025 | pending--; |
a2f77c9f JA |
1026 | |
1027 | if (td->error) | |
1028 | exit_value++; | |
ebac4655 | 1029 | } |
b990b5c0 | 1030 | |
4d2413c6 | 1031 | if (*nr_running == cputhreads && !pending) |
390c40e2 | 1032 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
1033 | } |
1034 | ||
906c8d75 JA |
1035 | /* |
1036 | * Main function for kicking off and reaping jobs, as needed. | |
1037 | */ | |
ebac4655 JA |
1038 | static void run_threads(void) |
1039 | { | |
ebac4655 JA |
1040 | struct thread_data *td; |
1041 | unsigned long spent; | |
1042 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 1043 | |
2f9ade3c JA |
1044 | if (fio_pin_memory()) |
1045 | return; | |
ebac4655 | 1046 | |
c6ae0a5b | 1047 | if (!terse_output) { |
9cedf167 JA |
1048 | printf("Starting "); |
1049 | if (nr_thread) | |
1050 | printf("%d thread%s", nr_thread, nr_thread > 1 ? "s" : ""); | |
1051 | if (nr_process) { | |
1052 | if (nr_thread) | |
1053 | printf(" and "); | |
1054 | printf("%d process%s", nr_process, nr_process > 1 ? "es" : ""); | |
1055 | } | |
1056 | printf("\n"); | |
c6ae0a5b JA |
1057 | fflush(stdout); |
1058 | } | |
c04f7ec3 | 1059 | |
4efa970e JA |
1060 | signal(SIGINT, sig_handler); |
1061 | signal(SIGALRM, sig_handler); | |
1062 | ||
ebac4655 JA |
1063 | todo = thread_number; |
1064 | nr_running = 0; | |
1065 | nr_started = 0; | |
1066 | m_rate = t_rate = 0; | |
1067 | ||
34572e28 | 1068 | for_each_td(td, i) { |
263e529f | 1069 | print_status_init(td->thread_number - 1); |
ebac4655 | 1070 | |
2dc1bbeb | 1071 | if (!td->o.create_serialize) { |
380cf265 | 1072 | init_disk_util(td); |
ebac4655 | 1073 | continue; |
380cf265 | 1074 | } |
ebac4655 JA |
1075 | |
1076 | /* | |
1077 | * do file setup here so it happens sequentially, | |
1078 | * we don't want X number of threads getting their | |
1079 | * client data interspersed on disk | |
1080 | */ | |
53cdc686 | 1081 | if (setup_files(td)) { |
5bf13a5a JA |
1082 | exit_value++; |
1083 | if (td->error) | |
1084 | log_err("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
ebac4655 JA |
1085 | td_set_runstate(td, TD_REAPED); |
1086 | todo--; | |
1087 | } | |
380cf265 JA |
1088 | |
1089 | init_disk_util(td); | |
ebac4655 JA |
1090 | } |
1091 | ||
a2f77c9f JA |
1092 | set_genesis_time(); |
1093 | ||
ebac4655 | 1094 | while (todo) { |
75154845 JA |
1095 | struct thread_data *map[MAX_JOBS]; |
1096 | struct timeval this_start; | |
1097 | int this_jobs = 0, left; | |
1098 | ||
ebac4655 JA |
1099 | /* |
1100 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1101 | */ | |
34572e28 | 1102 | for_each_td(td, i) { |
ebac4655 JA |
1103 | if (td->runstate != TD_NOT_CREATED) |
1104 | continue; | |
1105 | ||
1106 | /* | |
1107 | * never got a chance to start, killed by other | |
1108 | * thread for some reason | |
1109 | */ | |
1110 | if (td->terminate) { | |
1111 | todo--; | |
1112 | continue; | |
1113 | } | |
1114 | ||
2dc1bbeb | 1115 | if (td->o.start_delay) { |
263e529f | 1116 | spent = mtime_since_genesis(); |
ebac4655 | 1117 | |
2dc1bbeb | 1118 | if (td->o.start_delay * 1000 > spent) |
ebac4655 JA |
1119 | continue; |
1120 | } | |
1121 | ||
2dc1bbeb | 1122 | if (td->o.stonewall && (nr_started || nr_running)) |
ebac4655 JA |
1123 | break; |
1124 | ||
75154845 JA |
1125 | /* |
1126 | * Set state to created. Thread will transition | |
1127 | * to TD_INITIALIZED when it's done setting up. | |
1128 | */ | |
ebac4655 | 1129 | td_set_runstate(td, TD_CREATED); |
75154845 | 1130 | map[this_jobs++] = td; |
ebac4655 JA |
1131 | nr_started++; |
1132 | ||
2dc1bbeb | 1133 | if (td->o.use_thread) { |
ebac4655 JA |
1134 | if (pthread_create(&td->thread, NULL, thread_main, td)) { |
1135 | perror("thread_create"); | |
1136 | nr_started--; | |
c8bb6faf | 1137 | break; |
ebac4655 JA |
1138 | } |
1139 | } else { | |
07739b57 | 1140 | if (!fork()) { |
a6418147 JA |
1141 | int ret = fork_main(shm_id, i); |
1142 | ||
1143 | exit(ret); | |
ebac4655 JA |
1144 | } |
1145 | } | |
07739b57 | 1146 | fio_sem_down(startup_sem); |
ebac4655 JA |
1147 | } |
1148 | ||
1149 | /* | |
75154845 JA |
1150 | * Wait for the started threads to transition to |
1151 | * TD_INITIALIZED. | |
ebac4655 | 1152 | */ |
02bcaa8c | 1153 | fio_gettime(&this_start, NULL); |
75154845 | 1154 | left = this_jobs; |
6ce15a32 | 1155 | while (left && !fio_abort) { |
75154845 JA |
1156 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1157 | break; | |
1158 | ||
1159 | usleep(100000); | |
1160 | ||
1161 | for (i = 0; i < this_jobs; i++) { | |
1162 | td = map[i]; | |
1163 | if (!td) | |
1164 | continue; | |
b6f4d880 | 1165 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1166 | map[i] = NULL; |
1167 | left--; | |
b6f4d880 JA |
1168 | } else if (td->runstate >= TD_EXITED) { |
1169 | map[i] = NULL; | |
1170 | left--; | |
1171 | todo--; | |
1172 | nr_running++; /* work-around... */ | |
75154845 JA |
1173 | } |
1174 | } | |
1175 | } | |
1176 | ||
1177 | if (left) { | |
3b70d7e5 | 1178 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1179 | for (i = 0; i < this_jobs; i++) { |
1180 | td = map[i]; | |
1181 | if (!td) | |
1182 | continue; | |
1183 | kill(td->pid, SIGTERM); | |
1184 | } | |
1185 | break; | |
1186 | } | |
1187 | ||
1188 | /* | |
b6f4d880 | 1189 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1190 | */ |
34572e28 | 1191 | for_each_td(td, i) { |
75154845 | 1192 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1193 | continue; |
1194 | ||
1195 | td_set_runstate(td, TD_RUNNING); | |
1196 | nr_running++; | |
1197 | nr_started--; | |
2dc1bbeb JA |
1198 | m_rate += td->o.ratemin; |
1199 | t_rate += td->o.rate; | |
75154845 | 1200 | todo--; |
07739b57 | 1201 | fio_sem_up(td->mutex); |
ebac4655 JA |
1202 | } |
1203 | ||
1204 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1205 | ||
1206 | if (todo) | |
1207 | usleep(100000); | |
1208 | } | |
1209 | ||
1210 | while (nr_running) { | |
1211 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1212 | usleep(10000); | |
1213 | } | |
1214 | ||
1215 | update_io_ticks(); | |
2f9ade3c | 1216 | fio_unpin_memory(); |
ebac4655 JA |
1217 | } |
1218 | ||
ebac4655 JA |
1219 | int main(int argc, char *argv[]) |
1220 | { | |
29d610e1 JA |
1221 | long ps; |
1222 | ||
dbe1125e JA |
1223 | /* |
1224 | * We need locale for number printing, if it isn't set then just | |
1225 | * go with the US format. | |
1226 | */ | |
1227 | if (!getenv("LC_NUMERIC")) | |
1228 | setlocale(LC_NUMERIC, "en_US"); | |
1229 | ||
ebac4655 JA |
1230 | if (parse_options(argc, argv)) |
1231 | return 1; | |
1232 | ||
4b472fa3 JA |
1233 | if (!thread_number) |
1234 | return 0; | |
ebac4655 | 1235 | |
29d610e1 JA |
1236 | ps = sysconf(_SC_PAGESIZE); |
1237 | if (ps < 0) { | |
1238 | log_err("Failed to get page size\n"); | |
1239 | return 1; | |
1240 | } | |
1241 | ||
cfc99db7 | 1242 | page_size = ps; |
29d610e1 JA |
1243 | page_mask = ps - 1; |
1244 | ||
bb3884d8 JA |
1245 | if (write_bw_log) { |
1246 | setup_log(&agg_io_log[DDIR_READ]); | |
1247 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1248 | } | |
1249 | ||
07739b57 JA |
1250 | startup_sem = fio_sem_init(0); |
1251 | ||
a2f77c9f JA |
1252 | set_genesis_time(); |
1253 | ||
ebac4655 JA |
1254 | disk_util_timer_arm(); |
1255 | ||
1256 | run_threads(); | |
6ce15a32 | 1257 | |
bb3884d8 | 1258 | if (!fio_abort) { |
6ce15a32 | 1259 | show_run_stats(); |
bb3884d8 JA |
1260 | if (write_bw_log) { |
1261 | __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log"); | |
1262 | __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log"); | |
1263 | } | |
1264 | } | |
ebac4655 | 1265 | |
07739b57 | 1266 | fio_sem_remove(startup_sem); |
437c9b71 | 1267 | return exit_value; |
ebac4655 | 1268 | } |