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" |
2e5cdb11 | 39 | #include "smalloc.h" |
ebac4655 | 40 | |
cfc99db7 JA |
41 | unsigned long page_mask; |
42 | unsigned long page_size; | |
29d610e1 JA |
43 | #define ALIGN(buf) \ |
44 | (char *) (((unsigned long) (buf) + page_mask) & ~page_mask) | |
ebac4655 JA |
45 | |
46 | int groupid = 0; | |
47 | int thread_number = 0; | |
9cedf167 JA |
48 | int nr_process = 0; |
49 | int nr_thread = 0; | |
ebac4655 | 50 | int shm_id = 0; |
53cdc686 | 51 | int temp_stall_ts; |
ebac4655 | 52 | |
cdd18ad8 | 53 | static struct fio_mutex *startup_mutex; |
6ce15a32 | 54 | static volatile int fio_abort; |
437c9b71 | 55 | static int exit_value; |
ebac4655 | 56 | |
bb3884d8 JA |
57 | struct io_log *agg_io_log[2]; |
58 | ||
ebac4655 | 59 | #define TERMINATE_ALL (-1) |
75154845 | 60 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 | 61 | |
6ce15a32 JA |
62 | static inline void td_set_runstate(struct thread_data *td, int runstate) |
63 | { | |
d8fab1b6 JA |
64 | if (td->runstate == runstate) |
65 | return; | |
66 | ||
bd6f78b2 JA |
67 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", td->pid, td->runstate, |
68 | runstate); | |
6ce15a32 JA |
69 | td->runstate = runstate; |
70 | } | |
71 | ||
390c40e2 | 72 | static void terminate_threads(int group_id) |
ebac4655 | 73 | { |
34572e28 | 74 | struct thread_data *td; |
ebac4655 JA |
75 | int i; |
76 | ||
34572e28 | 77 | for_each_td(td, i) { |
ebac4655 | 78 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
ee56ad50 | 79 | dprint(FD_PROCESS, "setting terminate on %d\n",td->pid); |
ad830ed7 JA |
80 | |
81 | td->terminate = 1; | |
82 | td->o.start_delay = 0; | |
83 | ||
7a93ab19 JA |
84 | /* |
85 | * if the thread is running, just let it exit | |
86 | */ | |
87 | if (td->runstate < TD_RUNNING) | |
c1302d44 | 88 | kill(td->pid, SIGQUIT); |
f63f7f3b JA |
89 | else { |
90 | struct ioengine_ops *ops = td->io_ops; | |
91 | ||
92 | if (ops && (ops->flags & FIO_SIGQUIT)) | |
93 | kill(td->pid, SIGQUIT); | |
94 | } | |
ebac4655 JA |
95 | } |
96 | } | |
97 | } | |
98 | ||
99 | static void sig_handler(int sig) | |
100 | { | |
101 | switch (sig) { | |
102 | case SIGALRM: | |
103 | update_io_ticks(); | |
104 | disk_util_timer_arm(); | |
105 | print_thread_status(); | |
106 | break; | |
107 | default: | |
6ce15a32 | 108 | printf("\nfio: terminating on signal %d\n", sig); |
ebac4655 | 109 | fflush(stdout); |
390c40e2 | 110 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
111 | break; |
112 | } | |
113 | } | |
114 | ||
906c8d75 JA |
115 | /* |
116 | * Check if we are above the minimum rate given. | |
117 | */ | |
ebac4655 JA |
118 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
119 | { | |
0904200b | 120 | unsigned long long bytes = 0; |
4e991c23 | 121 | unsigned long iops = 0; |
ebac4655 JA |
122 | unsigned long spent; |
123 | unsigned long rate; | |
ebac4655 | 124 | |
780bf1a1 JA |
125 | /* |
126 | * No minimum rate set, always ok | |
127 | */ | |
2dc1bbeb | 128 | if (!td->o.ratemin && !td->o.rate_iops_min) |
780bf1a1 JA |
129 | return 0; |
130 | ||
ebac4655 JA |
131 | /* |
132 | * allow a 2 second settle period in the beginning | |
133 | */ | |
134 | if (mtime_since(&td->start, now) < 2000) | |
135 | return 0; | |
136 | ||
4e991c23 JA |
137 | if (td_read(td)) { |
138 | iops += td->io_blocks[DDIR_READ]; | |
0904200b | 139 | bytes += td->this_io_bytes[DDIR_READ]; |
4e991c23 JA |
140 | } |
141 | if (td_write(td)) { | |
142 | iops += td->io_blocks[DDIR_WRITE]; | |
0904200b | 143 | bytes += td->this_io_bytes[DDIR_WRITE]; |
4e991c23 | 144 | } |
0904200b | 145 | |
ebac4655 JA |
146 | /* |
147 | * if rate blocks is set, sample is running | |
148 | */ | |
4e991c23 | 149 | if (td->rate_bytes || td->rate_blocks) { |
ebac4655 | 150 | spent = mtime_since(&td->lastrate, now); |
2dc1bbeb | 151 | if (spent < td->o.ratecycle) |
ebac4655 JA |
152 | return 0; |
153 | ||
2dc1bbeb | 154 | if (td->o.rate) { |
4e991c23 JA |
155 | /* |
156 | * check bandwidth specified rate | |
157 | */ | |
158 | if (bytes < td->rate_bytes) { | |
2dc1bbeb | 159 | log_err("%s: min rate %u not met\n", td->o.name, td->o.ratemin); |
4e991c23 JA |
160 | return 1; |
161 | } else { | |
162 | rate = (bytes - td->rate_bytes) / spent; | |
2dc1bbeb JA |
163 | if (rate < td->o.ratemin || bytes < td->rate_bytes) { |
164 | log_err("%s: min rate %u not met, got %luKiB/sec\n", td->o.name, td->o.ratemin, rate); | |
4e991c23 JA |
165 | return 1; |
166 | } | |
167 | } | |
413dd459 | 168 | } else { |
4e991c23 JA |
169 | /* |
170 | * checks iops specified rate | |
171 | */ | |
2dc1bbeb JA |
172 | if (iops < td->o.rate_iops) { |
173 | log_err("%s: min iops rate %u not met\n", td->o.name, td->o.rate_iops); | |
413dd459 | 174 | return 1; |
4e991c23 JA |
175 | } else { |
176 | rate = (iops - td->rate_blocks) / spent; | |
2dc1bbeb JA |
177 | if (rate < td->o.rate_iops_min || iops < td->rate_blocks) { |
178 | log_err("%s: min iops rate %u not met, got %lu\n", td->o.name, td->o.rate_iops_min, rate); | |
4e991c23 | 179 | } |
413dd459 | 180 | } |
ebac4655 JA |
181 | } |
182 | } | |
183 | ||
0904200b | 184 | td->rate_bytes = bytes; |
4e991c23 | 185 | td->rate_blocks = iops; |
ebac4655 JA |
186 | memcpy(&td->lastrate, now, sizeof(*now)); |
187 | return 0; | |
188 | } | |
189 | ||
190 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
191 | { | |
2dc1bbeb | 192 | if (!td->o.timeout) |
ebac4655 | 193 | return 0; |
2dc1bbeb | 194 | if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) |
ebac4655 JA |
195 | return 1; |
196 | ||
197 | return 0; | |
198 | } | |
199 | ||
906c8d75 JA |
200 | /* |
201 | * When job exits, we can cancel the in-flight IO if we are using async | |
202 | * io. Attempt to do so. | |
203 | */ | |
ebac4655 JA |
204 | static void cleanup_pending_aio(struct thread_data *td) |
205 | { | |
ebac4655 | 206 | struct list_head *entry, *n; |
ebac4655 JA |
207 | struct io_u *io_u; |
208 | int r; | |
209 | ||
210 | /* | |
211 | * get immediately available events, if any | |
212 | */ | |
d7762cf8 | 213 | r = io_u_queued_complete(td, 0); |
b2fdda43 JA |
214 | if (r < 0) |
215 | return; | |
ebac4655 JA |
216 | |
217 | /* | |
218 | * now cancel remaining active events | |
219 | */ | |
2866c82d | 220 | if (td->io_ops->cancel) { |
ebac4655 JA |
221 | list_for_each_safe(entry, n, &td->io_u_busylist) { |
222 | io_u = list_entry(entry, struct io_u, list); | |
223 | ||
0c6e7517 JA |
224 | /* |
225 | * if the io_u isn't in flight, then that generally | |
226 | * means someone leaked an io_u. complain but fix | |
227 | * it up, so we don't stall here. | |
228 | */ | |
229 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
230 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 231 | put_io_u(td, io_u); |
0c6e7517 JA |
232 | } else { |
233 | r = td->io_ops->cancel(td, io_u); | |
234 | if (!r) | |
235 | put_io_u(td, io_u); | |
236 | } | |
ebac4655 JA |
237 | } |
238 | } | |
239 | ||
97601024 | 240 | if (td->cur_depth) |
d7762cf8 | 241 | r = io_u_queued_complete(td, td->cur_depth); |
ebac4655 JA |
242 | } |
243 | ||
858a3d47 JA |
244 | /* |
245 | * Helper to handle the final sync of a file. Works just like the normal | |
246 | * io path, just does everything sync. | |
247 | */ | |
248 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
249 | { | |
250 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
251 | int ret; |
252 | ||
253 | if (!io_u) | |
254 | return 1; | |
255 | ||
256 | io_u->ddir = DDIR_SYNC; | |
257 | io_u->file = f; | |
258 | ||
259 | if (td_io_prep(td, io_u)) { | |
260 | put_io_u(td, io_u); | |
261 | return 1; | |
262 | } | |
263 | ||
755200a3 | 264 | requeue: |
858a3d47 | 265 | ret = td_io_queue(td, io_u); |
36167d82 | 266 | if (ret < 0) { |
e1161c32 | 267 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 268 | put_io_u(td, io_u); |
858a3d47 | 269 | return 1; |
36167d82 | 270 | } else if (ret == FIO_Q_QUEUED) { |
d7762cf8 | 271 | if (io_u_queued_complete(td, 1) < 0) |
36167d82 | 272 | return 1; |
36167d82 JA |
273 | } else if (ret == FIO_Q_COMPLETED) { |
274 | if (io_u->error) { | |
e1161c32 | 275 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
276 | return 1; |
277 | } | |
858a3d47 | 278 | |
d7762cf8 | 279 | if (io_u_sync_complete(td, io_u) < 0) |
b2fdda43 | 280 | return 1; |
755200a3 JA |
281 | } else if (ret == FIO_Q_BUSY) { |
282 | if (td_io_commit(td)) | |
283 | return 1; | |
284 | goto requeue; | |
858a3d47 JA |
285 | } |
286 | ||
287 | return 0; | |
288 | } | |
289 | ||
906c8d75 | 290 | /* |
34403fb1 | 291 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
292 | * reads the blocks back in, and checks the crc/md5 of the data. |
293 | */ | |
1e97cce9 | 294 | static void do_verify(struct thread_data *td) |
ebac4655 | 295 | { |
53cdc686 | 296 | struct fio_file *f; |
36167d82 | 297 | struct io_u *io_u; |
af52b345 JA |
298 | int ret, min_events; |
299 | unsigned int i; | |
e5b401d4 JA |
300 | |
301 | /* | |
302 | * sync io first and invalidate cache, to make sure we really | |
303 | * read from disk. | |
304 | */ | |
305 | for_each_file(td, f, i) { | |
3d7b485f JA |
306 | if (!(f->flags & FIO_FILE_OPEN)) |
307 | continue; | |
b2fdda43 JA |
308 | if (fio_io_sync(td, f)) |
309 | break; | |
310 | if (file_invalidate_cache(td, f)) | |
311 | break; | |
e5b401d4 | 312 | } |
ebac4655 | 313 | |
b2fdda43 JA |
314 | if (td->error) |
315 | return; | |
316 | ||
ebac4655 JA |
317 | td_set_runstate(td, TD_VERIFYING); |
318 | ||
36167d82 JA |
319 | io_u = NULL; |
320 | while (!td->terminate) { | |
5451792e JA |
321 | int ret2; |
322 | ||
ebac4655 JA |
323 | io_u = __get_io_u(td); |
324 | if (!io_u) | |
325 | break; | |
326 | ||
069c2918 JA |
327 | if (runtime_exceeded(td, &io_u->start_time)) { |
328 | put_io_u(td, io_u); | |
90a87d4b | 329 | td->terminate = 1; |
02bcaa8c | 330 | break; |
069c2918 | 331 | } |
02bcaa8c | 332 | |
069c2918 JA |
333 | if (get_next_verify(td, io_u)) { |
334 | put_io_u(td, io_u); | |
ebac4655 | 335 | break; |
069c2918 | 336 | } |
ebac4655 | 337 | |
069c2918 JA |
338 | if (td_io_prep(td, io_u)) { |
339 | put_io_u(td, io_u); | |
53cdc686 | 340 | break; |
069c2918 | 341 | } |
d7762cf8 JA |
342 | |
343 | io_u->end_io = verify_io_u; | |
53cdc686 | 344 | |
11786802 | 345 | ret = td_io_queue(td, io_u); |
36167d82 JA |
346 | switch (ret) { |
347 | case FIO_Q_COMPLETED: | |
348 | if (io_u->error) | |
22819ec2 | 349 | ret = -io_u->error; |
9e9d164e | 350 | else if (io_u->resid) { |
36167d82 | 351 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 352 | struct fio_file *f = io_u->file; |
ebac4655 | 353 | |
9e9d164e JA |
354 | /* |
355 | * zero read, fail | |
356 | */ | |
357 | if (!bytes) { | |
358 | td_verror(td, ENODATA, "full resid"); | |
359 | put_io_u(td, io_u); | |
360 | break; | |
361 | } | |
8400d9b2 | 362 | |
36167d82 JA |
363 | io_u->xfer_buflen = io_u->resid; |
364 | io_u->xfer_buf += bytes; | |
8400d9b2 JA |
365 | io_u->offset += bytes; |
366 | ||
30061b97 JA |
367 | td->ts.short_io_u[io_u->ddir]++; |
368 | ||
d460eb31 | 369 | if (io_u->offset == f->real_file_size) |
8400d9b2 JA |
370 | goto sync_done; |
371 | ||
11786802 JA |
372 | requeue_io_u(td, &io_u); |
373 | } else { | |
8400d9b2 | 374 | sync_done: |
11786802 JA |
375 | ret = io_u_sync_complete(td, io_u); |
376 | if (ret < 0) | |
377 | break; | |
36167d82 | 378 | } |
36167d82 JA |
379 | continue; |
380 | case FIO_Q_QUEUED: | |
381 | break; | |
755200a3 JA |
382 | case FIO_Q_BUSY: |
383 | requeue_io_u(td, &io_u); | |
5451792e JA |
384 | ret2 = td_io_commit(td); |
385 | if (ret2 < 0) | |
386 | ret = ret2; | |
755200a3 | 387 | break; |
36167d82 JA |
388 | default: |
389 | assert(ret < 0); | |
e1161c32 | 390 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
391 | break; |
392 | } | |
393 | ||
99784632 | 394 | if (ret < 0 || td->error) |
3af6ef39 JA |
395 | break; |
396 | ||
ebac4655 | 397 | /* |
3af6ef39 JA |
398 | * if we can queue more, do so. but check if there are |
399 | * completed io_u's first. | |
ebac4655 | 400 | */ |
97601024 | 401 | min_events = 0; |
e916b390 | 402 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
3af6ef39 | 403 | min_events = 1; |
3af6ef39 | 404 | |
2dc1bbeb JA |
405 | if (td->cur_depth > td->o.iodepth_low) |
406 | min_events = td->cur_depth - td->o.iodepth_low; | |
e916b390 JA |
407 | } |
408 | ||
3af6ef39 JA |
409 | /* |
410 | * Reap required number of io units, if any, and do the | |
411 | * verification on them through the callback handler | |
412 | */ | |
d7762cf8 | 413 | if (io_u_queued_complete(td, min_events) < 0) |
ebac4655 | 414 | break; |
36167d82 | 415 | } |
ebac4655 | 416 | |
c01c0395 JA |
417 | if (!td->error) { |
418 | min_events = td->cur_depth; | |
419 | ||
420 | if (min_events) | |
421 | ret = io_u_queued_complete(td, min_events); | |
422 | } else | |
ebac4655 JA |
423 | cleanup_pending_aio(td); |
424 | ||
425 | td_set_runstate(td, TD_RUNNING); | |
426 | } | |
427 | ||
32cd46a0 | 428 | /* |
906c8d75 | 429 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
430 | * and reaps them, checking for rate and errors along the way. |
431 | */ | |
ebac4655 JA |
432 | static void do_io(struct thread_data *td) |
433 | { | |
02bcaa8c | 434 | struct timeval s; |
ebac4655 | 435 | unsigned long usec; |
af52b345 JA |
436 | unsigned int i; |
437 | int ret = 0; | |
ebac4655 | 438 | |
5853e5a8 JA |
439 | td_set_runstate(td, TD_RUNNING); |
440 | ||
7bb48f84 | 441 | while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) { |
97601024 JA |
442 | struct timeval comp_time; |
443 | long bytes_done = 0; | |
84585003 | 444 | int min_evts = 0; |
ebac4655 | 445 | struct io_u *io_u; |
5451792e | 446 | int ret2; |
ebac4655 JA |
447 | |
448 | if (td->terminate) | |
449 | break; | |
450 | ||
3d7c391d | 451 | io_u = get_io_u(td); |
ebac4655 JA |
452 | if (!io_u) |
453 | break; | |
454 | ||
455 | memcpy(&s, &io_u->start_time, sizeof(s)); | |
97601024 JA |
456 | |
457 | if (runtime_exceeded(td, &s)) { | |
458 | put_io_u(td, io_u); | |
90a87d4b | 459 | td->terminate = 1; |
97601024 JA |
460 | break; |
461 | } | |
36167d82 | 462 | |
b67740d3 JA |
463 | /* |
464 | * Add verification end_io handler, if asked to verify | |
465 | * a previously written file. | |
466 | */ | |
cc3fc855 | 467 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ) { |
b67740d3 | 468 | io_u->end_io = verify_io_u; |
d8fab1b6 JA |
469 | td_set_runstate(td, TD_VERIFYING); |
470 | } else | |
471 | td_set_runstate(td, TD_RUNNING); | |
b67740d3 | 472 | |
11786802 | 473 | ret = td_io_queue(td, io_u); |
36167d82 JA |
474 | switch (ret) { |
475 | case FIO_Q_COMPLETED: | |
5451792e JA |
476 | if (io_u->error) |
477 | ret = -io_u->error; | |
9e9d164e | 478 | else if (io_u->resid) { |
36167d82 | 479 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 480 | struct fio_file *f = io_u->file; |
36167d82 | 481 | |
9e9d164e JA |
482 | /* |
483 | * zero read, fail | |
484 | */ | |
485 | if (!bytes) { | |
486 | td_verror(td, ENODATA, "full resid"); | |
487 | put_io_u(td, io_u); | |
488 | break; | |
489 | } | |
490 | ||
cec6b55d | 491 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 492 | io_u->xfer_buf += bytes; |
5a7c5680 JA |
493 | io_u->offset += bytes; |
494 | ||
30061b97 JA |
495 | td->ts.short_io_u[io_u->ddir]++; |
496 | ||
d460eb31 | 497 | if (io_u->offset == f->real_file_size) |
5a7c5680 JA |
498 | goto sync_done; |
499 | ||
11786802 JA |
500 | requeue_io_u(td, &io_u); |
501 | } else { | |
5a7c5680 | 502 | sync_done: |
11786802 JA |
503 | fio_gettime(&comp_time, NULL); |
504 | bytes_done = io_u_sync_complete(td, io_u); | |
505 | if (bytes_done < 0) | |
506 | ret = bytes_done; | |
cec6b55d | 507 | } |
36167d82 JA |
508 | break; |
509 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
510 | /* |
511 | * if the engine doesn't have a commit hook, | |
512 | * the io_u is really queued. if it does have such | |
513 | * a hook, it has to call io_u_queued() itself. | |
514 | */ | |
515 | if (td->io_ops->commit == NULL) | |
516 | io_u_queued(td, io_u); | |
36167d82 | 517 | break; |
755200a3 JA |
518 | case FIO_Q_BUSY: |
519 | requeue_io_u(td, &io_u); | |
5451792e JA |
520 | ret2 = td_io_commit(td); |
521 | if (ret2 < 0) | |
522 | ret = ret2; | |
755200a3 | 523 | break; |
36167d82 JA |
524 | default: |
525 | assert(ret < 0); | |
526 | put_io_u(td, io_u); | |
527 | break; | |
ebac4655 JA |
528 | } |
529 | ||
99784632 | 530 | if (ret < 0 || td->error) |
36167d82 JA |
531 | break; |
532 | ||
97601024 JA |
533 | /* |
534 | * See if we need to complete some commands | |
535 | */ | |
755200a3 | 536 | if (ret == FIO_Q_QUEUED || ret == FIO_Q_BUSY) { |
97601024 | 537 | min_evts = 0; |
e916b390 | 538 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
36167d82 | 539 | min_evts = 1; |
ebac4655 | 540 | |
2dc1bbeb JA |
541 | if (td->cur_depth > td->o.iodepth_low) |
542 | min_evts = td->cur_depth - td->o.iodepth_low; | |
e916b390 JA |
543 | } |
544 | ||
97601024 | 545 | fio_gettime(&comp_time, NULL); |
d7762cf8 | 546 | bytes_done = io_u_queued_complete(td, min_evts); |
97601024 | 547 | if (bytes_done < 0) |
36167d82 | 548 | break; |
ebac4655 JA |
549 | } |
550 | ||
97601024 JA |
551 | if (!bytes_done) |
552 | continue; | |
553 | ||
ebac4655 JA |
554 | /* |
555 | * the rate is batched for now, it should work for batches | |
556 | * of completions except the very first one which may look | |
557 | * a little bursty | |
558 | */ | |
97601024 | 559 | usec = utime_since(&s, &comp_time); |
ebac4655 | 560 | |
413dd459 | 561 | rate_throttle(td, usec, bytes_done); |
ebac4655 | 562 | |
97601024 | 563 | if (check_min_rate(td, &comp_time)) { |
98aa62d8 | 564 | if (exitall_on_terminate) |
390c40e2 | 565 | terminate_threads(td->groupid); |
e1161c32 | 566 | td_verror(td, ENODATA, "check_min_rate"); |
ebac4655 JA |
567 | break; |
568 | } | |
569 | ||
2dc1bbeb | 570 | if (td->o.thinktime) { |
9c1f7434 JA |
571 | unsigned long long b; |
572 | ||
573 | b = td->io_blocks[0] + td->io_blocks[1]; | |
2dc1bbeb | 574 | if (!(b % td->o.thinktime_blocks)) { |
48097d5c JA |
575 | int left; |
576 | ||
2dc1bbeb JA |
577 | if (td->o.thinktime_spin) |
578 | __usec_sleep(td->o.thinktime_spin); | |
48097d5c | 579 | |
2dc1bbeb | 580 | left = td->o.thinktime - td->o.thinktime_spin; |
48097d5c JA |
581 | if (left) |
582 | usec_sleep(td, left); | |
583 | } | |
9c1f7434 | 584 | } |
ebac4655 JA |
585 | } |
586 | ||
aa31f1f1 SL |
587 | if (td->o.fill_device && td->error == ENOSPC) { |
588 | td->error = 0; | |
589 | td->terminate = 1; | |
590 | } | |
4d2413c6 | 591 | if (!td->error) { |
3d7c391d JA |
592 | struct fio_file *f; |
593 | ||
c01c0395 JA |
594 | i = td->cur_depth; |
595 | if (i) | |
596 | ret = io_u_queued_complete(td, i); | |
ebac4655 | 597 | |
2dc1bbeb | 598 | if (should_fsync(td) && td->o.end_fsync) { |
84585003 | 599 | td_set_runstate(td, TD_FSYNCING); |
3d7b485f JA |
600 | |
601 | for_each_file(td, f, i) { | |
602 | if (!(f->flags & FIO_FILE_OPEN)) | |
603 | continue; | |
858a3d47 | 604 | fio_io_sync(td, f); |
3d7b485f | 605 | } |
84585003 | 606 | } |
c01c0395 JA |
607 | } else |
608 | cleanup_pending_aio(td); | |
2ba1c290 JA |
609 | |
610 | /* | |
611 | * stop job if we failed doing any IO | |
612 | */ | |
613 | if ((td->this_io_bytes[0] + td->this_io_bytes[1]) == 0) | |
614 | td->done = 1; | |
ebac4655 JA |
615 | } |
616 | ||
ebac4655 JA |
617 | static void cleanup_io_u(struct thread_data *td) |
618 | { | |
619 | struct list_head *entry, *n; | |
620 | struct io_u *io_u; | |
621 | ||
622 | list_for_each_safe(entry, n, &td->io_u_freelist) { | |
623 | io_u = list_entry(entry, struct io_u, list); | |
624 | ||
625 | list_del(&io_u->list); | |
626 | free(io_u); | |
627 | } | |
628 | ||
2f9ade3c | 629 | free_io_mem(td); |
ebac4655 JA |
630 | } |
631 | ||
6b9cea23 JA |
632 | /* |
633 | * "randomly" fill the buffer contents | |
634 | */ | |
e9459e5a | 635 | static void fill_io_buf(struct thread_data *td, struct io_u *io_u, int max_bs) |
6b9cea23 | 636 | { |
210f43b3 | 637 | long *ptr = io_u->buf; |
6b9cea23 | 638 | |
e9459e5a JA |
639 | if (!td->o.zero_buffers) { |
640 | while ((void *) ptr - io_u->buf < max_bs) { | |
210f43b3 | 641 | *ptr = rand() * GOLDEN_RATIO_PRIME; |
e9459e5a JA |
642 | ptr++; |
643 | } | |
644 | } else | |
645 | memset(ptr, 0, max_bs); | |
6b9cea23 JA |
646 | } |
647 | ||
ebac4655 JA |
648 | static int init_io_u(struct thread_data *td) |
649 | { | |
650 | struct io_u *io_u; | |
a00735e6 | 651 | unsigned int max_bs; |
ebac4655 JA |
652 | int i, max_units; |
653 | char *p; | |
654 | ||
1e3c09af | 655 | max_units = td->o.iodepth; |
2dc1bbeb | 656 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
c3990645 | 657 | td->orig_buffer_size = (unsigned long long) max_bs * (unsigned long long) max_units; |
74b025b0 | 658 | |
2dc1bbeb JA |
659 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) |
660 | td->orig_buffer_size = (td->orig_buffer_size + td->o.hugepage_size - 1) & ~(td->o.hugepage_size - 1); | |
ebac4655 | 661 | |
c3990645 JA |
662 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { |
663 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
664 | return 1; | |
665 | } | |
666 | ||
2f9ade3c JA |
667 | if (allocate_io_mem(td)) |
668 | return 1; | |
ebac4655 | 669 | |
b3f378e9 JA |
670 | if (td->o.odirect) |
671 | p = ALIGN(td->orig_buffer); | |
672 | else | |
673 | p = td->orig_buffer; | |
674 | ||
ebac4655 | 675 | for (i = 0; i < max_units; i++) { |
db1cd90b JA |
676 | if (td->terminate) |
677 | return 1; | |
ebac4655 JA |
678 | io_u = malloc(sizeof(*io_u)); |
679 | memset(io_u, 0, sizeof(*io_u)); | |
680 | INIT_LIST_HEAD(&io_u->list); | |
681 | ||
b4c5e1ac JA |
682 | if (!(td->io_ops->flags & FIO_NOIO)) { |
683 | io_u->buf = p + max_bs * i; | |
e9459e5a | 684 | |
b4c5e1ac JA |
685 | if (td_write(td)) |
686 | fill_io_buf(td, io_u, max_bs); | |
687 | } | |
6b9cea23 | 688 | |
b1ff3403 | 689 | io_u->index = i; |
0c6e7517 | 690 | io_u->flags = IO_U_F_FREE; |
ebac4655 JA |
691 | list_add(&io_u->list, &td->io_u_freelist); |
692 | } | |
693 | ||
433afcb4 JA |
694 | io_u_init_timeout(); |
695 | ||
ebac4655 JA |
696 | return 0; |
697 | } | |
698 | ||
da86774e JA |
699 | static int switch_ioscheduler(struct thread_data *td) |
700 | { | |
701 | char tmp[256], tmp2[128]; | |
702 | FILE *f; | |
703 | int ret; | |
704 | ||
ba0fbe10 | 705 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
706 | return 0; |
707 | ||
da86774e JA |
708 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
709 | ||
710 | f = fopen(tmp, "r+"); | |
711 | if (!f) { | |
cbf5c1d7 JA |
712 | if (errno == ENOENT) { |
713 | log_err("fio: os or kernel doesn't support IO scheduler switching\n"); | |
714 | return 0; | |
715 | } | |
716 | td_verror(td, errno, "fopen iosched"); | |
da86774e JA |
717 | return 1; |
718 | } | |
719 | ||
720 | /* | |
721 | * Set io scheduler. | |
722 | */ | |
2dc1bbeb | 723 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); |
da86774e | 724 | if (ferror(f) || ret != 1) { |
e1161c32 | 725 | td_verror(td, errno, "fwrite"); |
da86774e JA |
726 | fclose(f); |
727 | return 1; | |
728 | } | |
729 | ||
730 | rewind(f); | |
731 | ||
732 | /* | |
733 | * Read back and check that the selected scheduler is now the default. | |
734 | */ | |
735 | ret = fread(tmp, 1, sizeof(tmp), f); | |
736 | if (ferror(f) || ret < 0) { | |
e1161c32 | 737 | td_verror(td, errno, "fread"); |
da86774e JA |
738 | fclose(f); |
739 | return 1; | |
740 | } | |
741 | ||
2dc1bbeb | 742 | sprintf(tmp2, "[%s]", td->o.ioscheduler); |
da86774e | 743 | if (!strstr(tmp, tmp2)) { |
2dc1bbeb | 744 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); |
e1161c32 | 745 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
746 | fclose(f); |
747 | return 1; | |
748 | } | |
749 | ||
750 | fclose(f); | |
751 | return 0; | |
752 | } | |
753 | ||
492158cf JA |
754 | static int keep_running(struct thread_data *td) |
755 | { | |
756 | unsigned long long io_done; | |
757 | ||
20e354ef JA |
758 | if (td->done) |
759 | return 0; | |
492158cf JA |
760 | if (td->o.time_based) |
761 | return 1; | |
762 | if (td->o.loops) { | |
763 | td->o.loops--; | |
764 | return 1; | |
765 | } | |
766 | ||
48f5abd3 | 767 | io_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE] + td->io_skip_bytes; |
492158cf JA |
768 | if (io_done < td->o.size) |
769 | return 1; | |
770 | ||
771 | return 0; | |
772 | } | |
773 | ||
a978ba68 | 774 | static int clear_io_state(struct thread_data *td) |
ebac4655 | 775 | { |
53cdc686 | 776 | struct fio_file *f; |
af52b345 JA |
777 | unsigned int i; |
778 | int ret; | |
ebac4655 | 779 | |
756867bd | 780 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 781 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 782 | td->zone_bytes = 0; |
d7d3b49b | 783 | td->rate_bytes = 0; |
4e991c23 | 784 | td->rate_blocks = 0; |
38d77cae | 785 | td->rw_end_set[0] = td->rw_end_set[1] = 0; |
ebac4655 | 786 | |
c1324df1 JA |
787 | td->last_was_sync = 0; |
788 | ||
2ba1c290 JA |
789 | /* |
790 | * reset file done count if we are to start over | |
791 | */ | |
792 | if (td->o.time_based || td->o.loops) | |
48f5abd3 | 793 | td->nr_done_files = 0; |
281f9b63 | 794 | |
24ffd2c2 | 795 | close_files(td); |
53cdc686 | 796 | |
a978ba68 JA |
797 | ret = 0; |
798 | for_each_file(td, f, i) { | |
281f9b63 | 799 | f->flags &= ~FIO_FILE_DONE; |
a978ba68 JA |
800 | ret = td_io_open_file(td, f); |
801 | if (ret) | |
802 | break; | |
53cdc686 | 803 | } |
a978ba68 JA |
804 | |
805 | return ret; | |
ebac4655 JA |
806 | } |
807 | ||
906c8d75 JA |
808 | /* |
809 | * Entry point for the thread based jobs. The process based jobs end up | |
810 | * here as well, after a little setup. | |
811 | */ | |
ebac4655 JA |
812 | static void *thread_main(void *data) |
813 | { | |
10927316 | 814 | unsigned long long runtime[2], elapsed; |
ebac4655 | 815 | struct thread_data *td = data; |
a978ba68 | 816 | int clear_state; |
ebac4655 | 817 | |
2dc1bbeb | 818 | if (!td->o.use_thread) |
ebac4655 JA |
819 | setsid(); |
820 | ||
821 | td->pid = getpid(); | |
822 | ||
ee56ad50 JA |
823 | dprint(FD_PROCESS, "jobs pid=%d started\n", td->pid); |
824 | ||
aea47d44 JA |
825 | INIT_LIST_HEAD(&td->io_u_freelist); |
826 | INIT_LIST_HEAD(&td->io_u_busylist); | |
755200a3 | 827 | INIT_LIST_HEAD(&td->io_u_requeues); |
aea47d44 | 828 | INIT_LIST_HEAD(&td->io_log_list); |
8de8f047 | 829 | INIT_LIST_HEAD(&td->io_hist_list); |
bb5d7d0b | 830 | td->io_hist_tree = RB_ROOT; |
aea47d44 | 831 | |
db1cd90b | 832 | td_set_runstate(td, TD_INITIALIZED); |
cdd18ad8 JA |
833 | fio_mutex_up(startup_mutex); |
834 | fio_mutex_down(td->mutex); | |
db1cd90b JA |
835 | |
836 | /* | |
cdd18ad8 | 837 | * the ->mutex mutex is now no longer used, close it to avoid |
db1cd90b JA |
838 | * eating a file descriptor |
839 | */ | |
cdd18ad8 | 840 | fio_mutex_remove(td->mutex); |
db1cd90b | 841 | |
d84f8d49 JA |
842 | /* |
843 | * May alter parameters that init_io_u() will use, so we need to | |
844 | * do this first. | |
845 | */ | |
846 | if (init_iolog(td)) | |
847 | goto err; | |
848 | ||
ebac4655 | 849 | if (init_io_u(td)) |
db1cd90b | 850 | goto err; |
ebac4655 | 851 | |
375b2695 | 852 | if (td->o.cpumask_set && fio_setaffinity(td) == -1) { |
e1161c32 | 853 | td_verror(td, errno, "cpu_set_affinity"); |
db1cd90b | 854 | goto err; |
ebac4655 JA |
855 | } |
856 | ||
ac684785 | 857 | if (td->ioprio_set) { |
ebac4655 | 858 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
e1161c32 | 859 | td_verror(td, errno, "ioprio_set"); |
db1cd90b | 860 | goto err; |
ebac4655 JA |
861 | } |
862 | } | |
863 | ||
2dc1bbeb | 864 | if (nice(td->o.nice) == -1) { |
e1161c32 | 865 | td_verror(td, errno, "nice"); |
db1cd90b | 866 | goto err; |
b6f4d880 JA |
867 | } |
868 | ||
2dc1bbeb | 869 | if (td->o.ioscheduler && switch_ioscheduler(td)) |
db1cd90b | 870 | goto err; |
37f56873 | 871 | |
2dc1bbeb | 872 | if (!td->o.create_serialize && setup_files(td)) |
ebac4655 JA |
873 | goto err; |
874 | ||
7d6c5283 JA |
875 | if (td_io_init(td)) |
876 | goto err; | |
877 | ||
b5af8293 JA |
878 | if (open_files(td)) |
879 | goto err; | |
880 | ||
68727076 JA |
881 | if (init_random_map(td)) |
882 | goto err; | |
883 | ||
2dc1bbeb JA |
884 | if (td->o.exec_prerun) { |
885 | if (system(td->o.exec_prerun) < 0) | |
69cfd7e0 JA |
886 | goto err; |
887 | } | |
4e0ba8af | 888 | |
69008999 | 889 | fio_gettime(&td->epoch, NULL); |
433afcb4 | 890 | memcpy(&td->timeout_end, &td->epoch, sizeof(td->epoch)); |
756867bd | 891 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 JA |
892 | |
893 | runtime[0] = runtime[1] = 0; | |
a978ba68 | 894 | clear_state = 0; |
492158cf | 895 | while (keep_running(td)) { |
02bcaa8c | 896 | fio_gettime(&td->start, NULL); |
756867bd | 897 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
ebac4655 | 898 | |
2dc1bbeb | 899 | if (td->o.ratemin) |
756867bd | 900 | memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate)); |
ebac4655 | 901 | |
a978ba68 JA |
902 | if (clear_state && clear_io_state(td)) |
903 | break; | |
904 | ||
ebac4655 JA |
905 | prune_io_piece_log(td); |
906 | ||
ba0fbe10 | 907 | do_io(td); |
ebac4655 | 908 | |
a978ba68 JA |
909 | clear_state = 1; |
910 | ||
38d77cae JA |
911 | if (td_read(td) && td->io_bytes[DDIR_READ]) { |
912 | if (td->rw_end_set[DDIR_READ]) | |
913 | elapsed = utime_since(&td->start, &td->rw_end[DDIR_READ]); | |
914 | else | |
915 | elapsed = utime_since_now(&td->start); | |
916 | ||
917 | runtime[DDIR_READ] += elapsed; | |
918 | } | |
919 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { | |
920 | if (td->rw_end_set[DDIR_WRITE]) | |
921 | elapsed = utime_since(&td->start, &td->rw_end[DDIR_WRITE]); | |
922 | else | |
923 | elapsed = utime_since_now(&td->start); | |
924 | ||
925 | runtime[DDIR_WRITE] += elapsed; | |
926 | } | |
413dd459 | 927 | |
ebac4655 JA |
928 | if (td->error || td->terminate) |
929 | break; | |
930 | ||
e84c73a8 SL |
931 | if (!td->o.do_verify || |
932 | td->o.verify == VERIFY_NONE || | |
b67740d3 | 933 | (td->io_ops->flags & FIO_UNIDIR)) |
ebac4655 JA |
934 | continue; |
935 | ||
a978ba68 JA |
936 | if (clear_io_state(td)) |
937 | break; | |
938 | ||
02bcaa8c | 939 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
940 | |
941 | do_verify(td); | |
942 | ||
69008999 | 943 | runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
944 | |
945 | if (td->error || td->terminate) | |
946 | break; | |
947 | } | |
948 | ||
36dff966 | 949 | update_rusage_stat(td); |
47f0cc48 YHJT |
950 | td->ts.runtime[0] = (runtime[0] + 999) / 1000; |
951 | td->ts.runtime[1] = (runtime[1] + 999) / 1000; | |
756867bd JA |
952 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
953 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
954 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
955 | ||
956 | if (td->ts.bw_log) | |
957 | finish_log(td, td->ts.bw_log, "bw"); | |
958 | if (td->ts.slat_log) | |
959 | finish_log(td, td->ts.slat_log, "slat"); | |
960 | if (td->ts.clat_log) | |
961 | finish_log(td, td->ts.clat_log, "clat"); | |
2dc1bbeb JA |
962 | if (td->o.exec_postrun) { |
963 | if (system(td->o.exec_postrun) < 0) | |
964 | log_err("fio: postrun %s failed\n", td->o.exec_postrun); | |
69cfd7e0 | 965 | } |
ebac4655 JA |
966 | |
967 | if (exitall_on_terminate) | |
390c40e2 | 968 | terminate_threads(td->groupid); |
ebac4655 JA |
969 | |
970 | err: | |
5bf13a5a JA |
971 | if (td->error) |
972 | printf("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
24ffd2c2 | 973 | close_and_free_files(td); |
2866c82d | 974 | close_ioengine(td); |
ebac4655 | 975 | cleanup_io_u(td); |
f29b25a3 JA |
976 | |
977 | /* | |
978 | * do this very late, it will log file closing as well | |
979 | */ | |
980 | if (td->o.write_iolog_file) | |
981 | write_iolog_close(td); | |
982 | ||
d23bb327 | 983 | options_mem_free(td); |
ebac4655 | 984 | td_set_runstate(td, TD_EXITED); |
43d76807 | 985 | return (void *) (unsigned long) td->error; |
ebac4655 JA |
986 | } |
987 | ||
906c8d75 JA |
988 | /* |
989 | * We cannot pass the td data into a forked process, so attach the td and | |
990 | * pass it to the thread worker. | |
991 | */ | |
a6418147 | 992 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
993 | { |
994 | struct thread_data *td; | |
a6418147 | 995 | void *data, *ret; |
ebac4655 JA |
996 | |
997 | data = shmat(shmid, NULL, 0); | |
998 | if (data == (void *) -1) { | |
a6418147 JA |
999 | int __err = errno; |
1000 | ||
ebac4655 | 1001 | perror("shmat"); |
a6418147 | 1002 | return __err; |
ebac4655 JA |
1003 | } |
1004 | ||
1005 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 1006 | ret = thread_main(td); |
ebac4655 | 1007 | shmdt(data); |
43d76807 | 1008 | return (int) (unsigned long) ret; |
ebac4655 JA |
1009 | } |
1010 | ||
906c8d75 JA |
1011 | /* |
1012 | * Run over the job map and reap the threads that have exited, if any. | |
1013 | */ | |
ebac4655 JA |
1014 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
1015 | { | |
34572e28 | 1016 | struct thread_data *td; |
1f809d15 | 1017 | int i, cputhreads, realthreads, pending, status, ret; |
ebac4655 JA |
1018 | |
1019 | /* | |
1020 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1021 | */ | |
1f809d15 | 1022 | realthreads = pending = cputhreads = 0; |
34572e28 | 1023 | for_each_td(td, i) { |
3707f45b | 1024 | int flags = 0; |
a2f77c9f | 1025 | |
84585003 JA |
1026 | /* |
1027 | * ->io_ops is NULL for a thread that has closed its | |
1028 | * io engine | |
1029 | */ | |
ba0fbe10 | 1030 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 | 1031 | cputhreads++; |
1f809d15 JA |
1032 | else |
1033 | realthreads++; | |
b990b5c0 | 1034 | |
a1dedc1f AC |
1035 | if (!td->pid) { |
1036 | pending++; | |
1037 | continue; | |
1038 | } | |
1039 | if (td->runstate == TD_REAPED) | |
a2f77c9f | 1040 | continue; |
2dc1bbeb | 1041 | if (td->o.use_thread) { |
3707f45b JA |
1042 | if (td->runstate == TD_EXITED) { |
1043 | td_set_runstate(td, TD_REAPED); | |
1044 | goto reaped; | |
1045 | } | |
1046 | continue; | |
1047 | } | |
a2f77c9f JA |
1048 | |
1049 | flags = WNOHANG; | |
1050 | if (td->runstate == TD_EXITED) | |
1051 | flags = 0; | |
1052 | ||
1053 | /* | |
1054 | * check if someone quit or got killed in an unusual way | |
1055 | */ | |
1056 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 1057 | if (ret < 0) { |
a2f77c9f JA |
1058 | if (errno == ECHILD) { |
1059 | log_err("fio: pid=%d disappeared %d\n", td->pid, td->runstate); | |
1060 | td_set_runstate(td, TD_REAPED); | |
1061 | goto reaped; | |
1062 | } | |
1063 | perror("waitpid"); | |
1064 | } else if (ret == td->pid) { | |
1065 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
1066 | int sig = WTERMSIG(status); |
1067 | ||
d9244941 JA |
1068 | if (sig != SIGQUIT) |
1069 | log_err("fio: pid=%d, got signal=%d\n", td->pid, sig); | |
fab6aa71 JA |
1070 | td_set_runstate(td, TD_REAPED); |
1071 | goto reaped; | |
1072 | } | |
a2f77c9f JA |
1073 | if (WIFEXITED(status)) { |
1074 | if (WEXITSTATUS(status) && !td->error) | |
1075 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 1076 | |
a2f77c9f JA |
1077 | td_set_runstate(td, TD_REAPED); |
1078 | goto reaped; | |
a6418147 JA |
1079 | } |
1080 | } | |
ebac4655 | 1081 | |
a2f77c9f JA |
1082 | /* |
1083 | * thread is not dead, continue | |
1084 | */ | |
e48676ba | 1085 | pending++; |
a2f77c9f | 1086 | continue; |
fab6aa71 | 1087 | reaped: |
2dc1bbeb | 1088 | if (td->o.use_thread) { |
3707f45b JA |
1089 | long ret; |
1090 | ||
ee56ad50 JA |
1091 | dprint(FD_PROCESS, "joining tread %d\n", td->pid); |
1092 | if (pthread_join(td->thread, (void *) &ret)) { | |
1093 | dprint(FD_PROCESS, "join failed %ld\n", ret); | |
3707f45b | 1094 | perror("pthread_join"); |
ee56ad50 | 1095 | } |
3707f45b JA |
1096 | } |
1097 | ||
ebac4655 | 1098 | (*nr_running)--; |
2dc1bbeb JA |
1099 | (*m_rate) -= td->o.ratemin; |
1100 | (*t_rate) -= td->o.rate; | |
e48676ba | 1101 | pending--; |
a2f77c9f JA |
1102 | |
1103 | if (td->error) | |
1104 | exit_value++; | |
ebac4655 | 1105 | } |
b990b5c0 | 1106 | |
1f809d15 | 1107 | if (*nr_running == cputhreads && !pending && realthreads) |
390c40e2 | 1108 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
1109 | } |
1110 | ||
906c8d75 JA |
1111 | /* |
1112 | * Main function for kicking off and reaping jobs, as needed. | |
1113 | */ | |
ebac4655 JA |
1114 | static void run_threads(void) |
1115 | { | |
ebac4655 JA |
1116 | struct thread_data *td; |
1117 | unsigned long spent; | |
1118 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 1119 | |
2f9ade3c JA |
1120 | if (fio_pin_memory()) |
1121 | return; | |
ebac4655 | 1122 | |
c6ae0a5b | 1123 | if (!terse_output) { |
9cedf167 JA |
1124 | printf("Starting "); |
1125 | if (nr_thread) | |
1126 | printf("%d thread%s", nr_thread, nr_thread > 1 ? "s" : ""); | |
1127 | if (nr_process) { | |
1128 | if (nr_thread) | |
1129 | printf(" and "); | |
1130 | printf("%d process%s", nr_process, nr_process > 1 ? "es" : ""); | |
1131 | } | |
1132 | printf("\n"); | |
c6ae0a5b JA |
1133 | fflush(stdout); |
1134 | } | |
c04f7ec3 | 1135 | |
4efa970e JA |
1136 | signal(SIGINT, sig_handler); |
1137 | signal(SIGALRM, sig_handler); | |
1138 | ||
ebac4655 JA |
1139 | todo = thread_number; |
1140 | nr_running = 0; | |
1141 | nr_started = 0; | |
1142 | m_rate = t_rate = 0; | |
1143 | ||
34572e28 | 1144 | for_each_td(td, i) { |
263e529f | 1145 | print_status_init(td->thread_number - 1); |
ebac4655 | 1146 | |
2dc1bbeb | 1147 | if (!td->o.create_serialize) { |
380cf265 | 1148 | init_disk_util(td); |
ebac4655 | 1149 | continue; |
380cf265 | 1150 | } |
ebac4655 JA |
1151 | |
1152 | /* | |
1153 | * do file setup here so it happens sequentially, | |
1154 | * we don't want X number of threads getting their | |
1155 | * client data interspersed on disk | |
1156 | */ | |
53cdc686 | 1157 | if (setup_files(td)) { |
5bf13a5a JA |
1158 | exit_value++; |
1159 | if (td->error) | |
1160 | log_err("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
ebac4655 JA |
1161 | td_set_runstate(td, TD_REAPED); |
1162 | todo--; | |
c69e8875 JA |
1163 | } else { |
1164 | struct fio_file *f; | |
1165 | unsigned int i; | |
1166 | ||
1167 | /* | |
1168 | * for sharing to work, each job must always open | |
1169 | * its own files. so close them, if we opened them | |
1170 | * for creation | |
1171 | */ | |
1172 | for_each_file(td, f, i) | |
1173 | td_io_close_file(td, f); | |
1174 | } | |
380cf265 JA |
1175 | |
1176 | init_disk_util(td); | |
ebac4655 JA |
1177 | } |
1178 | ||
a2f77c9f JA |
1179 | set_genesis_time(); |
1180 | ||
ebac4655 | 1181 | while (todo) { |
75154845 JA |
1182 | struct thread_data *map[MAX_JOBS]; |
1183 | struct timeval this_start; | |
1184 | int this_jobs = 0, left; | |
1185 | ||
ebac4655 JA |
1186 | /* |
1187 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1188 | */ | |
34572e28 | 1189 | for_each_td(td, i) { |
ebac4655 JA |
1190 | if (td->runstate != TD_NOT_CREATED) |
1191 | continue; | |
1192 | ||
1193 | /* | |
1194 | * never got a chance to start, killed by other | |
1195 | * thread for some reason | |
1196 | */ | |
1197 | if (td->terminate) { | |
1198 | todo--; | |
1199 | continue; | |
1200 | } | |
1201 | ||
2dc1bbeb | 1202 | if (td->o.start_delay) { |
263e529f | 1203 | spent = mtime_since_genesis(); |
ebac4655 | 1204 | |
2dc1bbeb | 1205 | if (td->o.start_delay * 1000 > spent) |
ebac4655 JA |
1206 | continue; |
1207 | } | |
1208 | ||
2dc1bbeb | 1209 | if (td->o.stonewall && (nr_started || nr_running)) |
ebac4655 JA |
1210 | break; |
1211 | ||
75154845 JA |
1212 | /* |
1213 | * Set state to created. Thread will transition | |
1214 | * to TD_INITIALIZED when it's done setting up. | |
1215 | */ | |
ebac4655 | 1216 | td_set_runstate(td, TD_CREATED); |
75154845 | 1217 | map[this_jobs++] = td; |
ebac4655 JA |
1218 | nr_started++; |
1219 | ||
2dc1bbeb | 1220 | if (td->o.use_thread) { |
ee56ad50 | 1221 | dprint(FD_PROCESS, "will pthread_create\n"); |
ebac4655 JA |
1222 | if (pthread_create(&td->thread, NULL, thread_main, td)) { |
1223 | perror("thread_create"); | |
1224 | nr_started--; | |
c8bb6faf | 1225 | break; |
ebac4655 JA |
1226 | } |
1227 | } else { | |
ee56ad50 | 1228 | dprint(FD_PROCESS, "will fork\n"); |
07739b57 | 1229 | if (!fork()) { |
a6418147 JA |
1230 | int ret = fork_main(shm_id, i); |
1231 | ||
1232 | exit(ret); | |
ebac4655 JA |
1233 | } |
1234 | } | |
cdd18ad8 | 1235 | fio_mutex_down(startup_mutex); |
ebac4655 JA |
1236 | } |
1237 | ||
1238 | /* | |
75154845 JA |
1239 | * Wait for the started threads to transition to |
1240 | * TD_INITIALIZED. | |
ebac4655 | 1241 | */ |
02bcaa8c | 1242 | fio_gettime(&this_start, NULL); |
75154845 | 1243 | left = this_jobs; |
6ce15a32 | 1244 | while (left && !fio_abort) { |
75154845 JA |
1245 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1246 | break; | |
1247 | ||
1248 | usleep(100000); | |
1249 | ||
1250 | for (i = 0; i < this_jobs; i++) { | |
1251 | td = map[i]; | |
1252 | if (!td) | |
1253 | continue; | |
b6f4d880 | 1254 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1255 | map[i] = NULL; |
1256 | left--; | |
b6f4d880 JA |
1257 | } else if (td->runstate >= TD_EXITED) { |
1258 | map[i] = NULL; | |
1259 | left--; | |
1260 | todo--; | |
1261 | nr_running++; /* work-around... */ | |
75154845 JA |
1262 | } |
1263 | } | |
1264 | } | |
1265 | ||
1266 | if (left) { | |
3b70d7e5 | 1267 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1268 | for (i = 0; i < this_jobs; i++) { |
1269 | td = map[i]; | |
1270 | if (!td) | |
1271 | continue; | |
1272 | kill(td->pid, SIGTERM); | |
1273 | } | |
1274 | break; | |
1275 | } | |
1276 | ||
1277 | /* | |
b6f4d880 | 1278 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1279 | */ |
34572e28 | 1280 | for_each_td(td, i) { |
75154845 | 1281 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1282 | continue; |
1283 | ||
1284 | td_set_runstate(td, TD_RUNNING); | |
1285 | nr_running++; | |
1286 | nr_started--; | |
2dc1bbeb JA |
1287 | m_rate += td->o.ratemin; |
1288 | t_rate += td->o.rate; | |
75154845 | 1289 | todo--; |
cdd18ad8 | 1290 | fio_mutex_up(td->mutex); |
ebac4655 JA |
1291 | } |
1292 | ||
1293 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1294 | ||
1295 | if (todo) | |
1296 | usleep(100000); | |
1297 | } | |
1298 | ||
1299 | while (nr_running) { | |
1300 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1301 | usleep(10000); | |
1302 | } | |
1303 | ||
1304 | update_io_ticks(); | |
2f9ade3c | 1305 | fio_unpin_memory(); |
ebac4655 JA |
1306 | } |
1307 | ||
ebac4655 JA |
1308 | int main(int argc, char *argv[]) |
1309 | { | |
29d610e1 JA |
1310 | long ps; |
1311 | ||
2e5cdb11 JA |
1312 | sinit(); |
1313 | ||
dbe1125e JA |
1314 | /* |
1315 | * We need locale for number printing, if it isn't set then just | |
1316 | * go with the US format. | |
1317 | */ | |
1318 | if (!getenv("LC_NUMERIC")) | |
1319 | setlocale(LC_NUMERIC, "en_US"); | |
1320 | ||
ebac4655 JA |
1321 | if (parse_options(argc, argv)) |
1322 | return 1; | |
1323 | ||
4b472fa3 JA |
1324 | if (!thread_number) |
1325 | return 0; | |
ebac4655 | 1326 | |
29d610e1 JA |
1327 | ps = sysconf(_SC_PAGESIZE); |
1328 | if (ps < 0) { | |
1329 | log_err("Failed to get page size\n"); | |
1330 | return 1; | |
1331 | } | |
1332 | ||
cfc99db7 | 1333 | page_size = ps; |
29d610e1 JA |
1334 | page_mask = ps - 1; |
1335 | ||
bb3884d8 JA |
1336 | if (write_bw_log) { |
1337 | setup_log(&agg_io_log[DDIR_READ]); | |
1338 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1339 | } | |
1340 | ||
cdd18ad8 | 1341 | startup_mutex = fio_mutex_init(0); |
07739b57 | 1342 | |
a2f77c9f JA |
1343 | set_genesis_time(); |
1344 | ||
ebac4655 JA |
1345 | disk_util_timer_arm(); |
1346 | ||
1347 | run_threads(); | |
6ce15a32 | 1348 | |
bb3884d8 | 1349 | if (!fio_abort) { |
6ce15a32 | 1350 | show_run_stats(); |
bb3884d8 JA |
1351 | if (write_bw_log) { |
1352 | __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log"); | |
1353 | __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log"); | |
1354 | } | |
1355 | } | |
ebac4655 | 1356 | |
cdd18ad8 | 1357 | fio_mutex_remove(startup_mutex); |
437c9b71 | 1358 | return exit_value; |
ebac4655 | 1359 | } |