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; |
d3eeeabc | 52 | unsigned long done_secs = 0; |
ebac4655 | 53 | |
cdd18ad8 | 54 | static struct fio_mutex *startup_mutex; |
6ce15a32 | 55 | static volatile int fio_abort; |
437c9b71 | 56 | static int exit_value; |
ccb0fa24 | 57 | static struct itimerval itimer; |
be4ecfdf | 58 | static pthread_t gtod_thread; |
ebac4655 | 59 | |
bb3884d8 JA |
60 | struct io_log *agg_io_log[2]; |
61 | ||
ebac4655 | 62 | #define TERMINATE_ALL (-1) |
75154845 | 63 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 | 64 | |
b29ee5b3 | 65 | void td_set_runstate(struct thread_data *td, int runstate) |
6ce15a32 | 66 | { |
d8fab1b6 JA |
67 | if (td->runstate == runstate) |
68 | return; | |
69 | ||
5921e80c JA |
70 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, |
71 | td->runstate, runstate); | |
6ce15a32 JA |
72 | td->runstate = runstate; |
73 | } | |
74 | ||
390c40e2 | 75 | static void terminate_threads(int group_id) |
ebac4655 | 76 | { |
34572e28 | 77 | struct thread_data *td; |
ebac4655 JA |
78 | int i; |
79 | ||
6f88bcb0 JA |
80 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); |
81 | ||
34572e28 | 82 | for_each_td(td, i) { |
ebac4655 | 83 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
6f88bcb0 | 84 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", |
5921e80c | 85 | td->o.name, (int) td->pid); |
ad830ed7 JA |
86 | td->terminate = 1; |
87 | td->o.start_delay = 0; | |
88 | ||
7a93ab19 JA |
89 | /* |
90 | * if the thread is running, just let it exit | |
91 | */ | |
92 | if (td->runstate < TD_RUNNING) | |
c1302d44 | 93 | kill(td->pid, SIGQUIT); |
f63f7f3b JA |
94 | else { |
95 | struct ioengine_ops *ops = td->io_ops; | |
96 | ||
97 | if (ops && (ops->flags & FIO_SIGQUIT)) | |
98 | kill(td->pid, SIGQUIT); | |
99 | } | |
ebac4655 JA |
100 | } |
101 | } | |
102 | } | |
103 | ||
ccb0fa24 JA |
104 | static void status_timer_arm(void) |
105 | { | |
106 | itimer.it_value.tv_sec = 0; | |
107 | itimer.it_value.tv_usec = DISK_UTIL_MSEC * 1000; | |
108 | setitimer(ITIMER_REAL, &itimer, NULL); | |
109 | } | |
110 | ||
02444ad1 | 111 | static void sig_alrm(int fio_unused sig) |
ebac4655 | 112 | { |
697a606c | 113 | if (threads) { |
5ec10eaa | 114 | update_io_ticks(); |
5ec10eaa | 115 | print_thread_status(); |
ccb0fa24 | 116 | status_timer_arm(); |
697a606c JA |
117 | } |
118 | } | |
119 | ||
5f8f9726 JA |
120 | /* |
121 | * Happens on thread runs with ctrl-c, ignore our own SIGQUIT | |
122 | */ | |
123 | static void sig_quit(int sig) | |
124 | { | |
125 | } | |
126 | ||
697a606c JA |
127 | static void sig_int(int sig) |
128 | { | |
129 | if (threads) { | |
5ec10eaa JA |
130 | printf("\nfio: terminating on signal %d\n", sig); |
131 | fflush(stdout); | |
132 | terminate_threads(TERMINATE_ALL); | |
ebac4655 JA |
133 | } |
134 | } | |
135 | ||
02444ad1 | 136 | static void sig_ill(int fio_unused sig) |
de79c915 JA |
137 | { |
138 | if (!threads) | |
139 | return; | |
140 | ||
141 | log_err("fio: illegal instruction. your cpu does not support " | |
142 | "the sse4.2 instruction for crc32c\n"); | |
143 | terminate_threads(TERMINATE_ALL); | |
144 | exit(4); | |
145 | } | |
146 | ||
697a606c JA |
147 | static void set_sig_handlers(void) |
148 | { | |
149 | struct sigaction act; | |
150 | ||
151 | memset(&act, 0, sizeof(act)); | |
152 | act.sa_handler = sig_alrm; | |
153 | act.sa_flags = SA_RESTART; | |
154 | sigaction(SIGALRM, &act, NULL); | |
155 | ||
156 | memset(&act, 0, sizeof(act)); | |
157 | act.sa_handler = sig_int; | |
158 | act.sa_flags = SA_RESTART; | |
159 | sigaction(SIGINT, &act, NULL); | |
de79c915 JA |
160 | |
161 | memset(&act, 0, sizeof(act)); | |
162 | act.sa_handler = sig_ill; | |
163 | act.sa_flags = SA_RESTART; | |
164 | sigaction(SIGILL, &act, NULL); | |
5f8f9726 JA |
165 | |
166 | memset(&act, 0, sizeof(act)); | |
167 | act.sa_handler = sig_quit; | |
168 | act.sa_flags = SA_RESTART; | |
169 | sigaction(SIGQUIT, &act, NULL); | |
697a606c JA |
170 | } |
171 | ||
993bf48b JA |
172 | static inline int should_check_rate(struct thread_data *td) |
173 | { | |
174 | /* | |
175 | * No minimum rate set, always ok | |
176 | */ | |
177 | if (!td->o.ratemin && !td->o.rate_iops_min) | |
178 | return 0; | |
179 | ||
180 | return 1; | |
181 | } | |
182 | ||
906c8d75 JA |
183 | /* |
184 | * Check if we are above the minimum rate given. | |
185 | */ | |
ebac4655 JA |
186 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
187 | { | |
0904200b | 188 | unsigned long long bytes = 0; |
4e991c23 | 189 | unsigned long iops = 0; |
ebac4655 JA |
190 | unsigned long spent; |
191 | unsigned long rate; | |
ebac4655 JA |
192 | |
193 | /* | |
194 | * allow a 2 second settle period in the beginning | |
195 | */ | |
196 | if (mtime_since(&td->start, now) < 2000) | |
197 | return 0; | |
198 | ||
4e991c23 JA |
199 | if (td_read(td)) { |
200 | iops += td->io_blocks[DDIR_READ]; | |
0904200b | 201 | bytes += td->this_io_bytes[DDIR_READ]; |
4e991c23 JA |
202 | } |
203 | if (td_write(td)) { | |
204 | iops += td->io_blocks[DDIR_WRITE]; | |
0904200b | 205 | bytes += td->this_io_bytes[DDIR_WRITE]; |
4e991c23 | 206 | } |
0904200b | 207 | |
ebac4655 JA |
208 | /* |
209 | * if rate blocks is set, sample is running | |
210 | */ | |
4e991c23 | 211 | if (td->rate_bytes || td->rate_blocks) { |
ebac4655 | 212 | spent = mtime_since(&td->lastrate, now); |
2dc1bbeb | 213 | if (spent < td->o.ratecycle) |
ebac4655 JA |
214 | return 0; |
215 | ||
2dc1bbeb | 216 | if (td->o.rate) { |
4e991c23 JA |
217 | /* |
218 | * check bandwidth specified rate | |
219 | */ | |
220 | if (bytes < td->rate_bytes) { | |
5ec10eaa JA |
221 | log_err("%s: min rate %u not met\n", td->o.name, |
222 | td->o.ratemin); | |
4e991c23 JA |
223 | return 1; |
224 | } else { | |
225 | rate = (bytes - td->rate_bytes) / spent; | |
5ec10eaa JA |
226 | if (rate < td->o.ratemin || |
227 | bytes < td->rate_bytes) { | |
228 | log_err("%s: min rate %u not met, got" | |
229 | " %luKiB/sec\n", td->o.name, | |
230 | td->o.ratemin, rate); | |
4e991c23 JA |
231 | return 1; |
232 | } | |
233 | } | |
413dd459 | 234 | } else { |
4e991c23 JA |
235 | /* |
236 | * checks iops specified rate | |
237 | */ | |
2dc1bbeb | 238 | if (iops < td->o.rate_iops) { |
5ec10eaa JA |
239 | log_err("%s: min iops rate %u not met\n", |
240 | td->o.name, td->o.rate_iops); | |
413dd459 | 241 | return 1; |
4e991c23 JA |
242 | } else { |
243 | rate = (iops - td->rate_blocks) / spent; | |
5ec10eaa JA |
244 | if (rate < td->o.rate_iops_min || |
245 | iops < td->rate_blocks) { | |
246 | log_err("%s: min iops rate %u not met," | |
247 | " got %lu\n", td->o.name, | |
248 | td->o.rate_iops_min, | |
249 | rate); | |
4e991c23 | 250 | } |
413dd459 | 251 | } |
ebac4655 JA |
252 | } |
253 | } | |
254 | ||
0904200b | 255 | td->rate_bytes = bytes; |
4e991c23 | 256 | td->rate_blocks = iops; |
ebac4655 JA |
257 | memcpy(&td->lastrate, now, sizeof(*now)); |
258 | return 0; | |
259 | } | |
260 | ||
261 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
262 | { | |
2dc1bbeb | 263 | if (!td->o.timeout) |
ebac4655 | 264 | return 0; |
2dc1bbeb | 265 | if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) |
ebac4655 JA |
266 | return 1; |
267 | ||
268 | return 0; | |
269 | } | |
270 | ||
906c8d75 JA |
271 | /* |
272 | * When job exits, we can cancel the in-flight IO if we are using async | |
273 | * io. Attempt to do so. | |
274 | */ | |
ebac4655 JA |
275 | static void cleanup_pending_aio(struct thread_data *td) |
276 | { | |
01743ee1 | 277 | struct flist_head *entry, *n; |
ebac4655 JA |
278 | struct io_u *io_u; |
279 | int r; | |
280 | ||
281 | /* | |
282 | * get immediately available events, if any | |
283 | */ | |
d7762cf8 | 284 | r = io_u_queued_complete(td, 0); |
b2fdda43 JA |
285 | if (r < 0) |
286 | return; | |
ebac4655 JA |
287 | |
288 | /* | |
289 | * now cancel remaining active events | |
290 | */ | |
2866c82d | 291 | if (td->io_ops->cancel) { |
01743ee1 JA |
292 | flist_for_each_safe(entry, n, &td->io_u_busylist) { |
293 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 294 | |
0c6e7517 JA |
295 | /* |
296 | * if the io_u isn't in flight, then that generally | |
297 | * means someone leaked an io_u. complain but fix | |
298 | * it up, so we don't stall here. | |
299 | */ | |
300 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
301 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 302 | put_io_u(td, io_u); |
0c6e7517 JA |
303 | } else { |
304 | r = td->io_ops->cancel(td, io_u); | |
305 | if (!r) | |
306 | put_io_u(td, io_u); | |
307 | } | |
ebac4655 JA |
308 | } |
309 | } | |
310 | ||
97601024 | 311 | if (td->cur_depth) |
d7762cf8 | 312 | r = io_u_queued_complete(td, td->cur_depth); |
ebac4655 JA |
313 | } |
314 | ||
858a3d47 JA |
315 | /* |
316 | * Helper to handle the final sync of a file. Works just like the normal | |
317 | * io path, just does everything sync. | |
318 | */ | |
319 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
320 | { | |
321 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
322 | int ret; |
323 | ||
324 | if (!io_u) | |
325 | return 1; | |
326 | ||
327 | io_u->ddir = DDIR_SYNC; | |
328 | io_u->file = f; | |
329 | ||
330 | if (td_io_prep(td, io_u)) { | |
331 | put_io_u(td, io_u); | |
332 | return 1; | |
333 | } | |
334 | ||
755200a3 | 335 | requeue: |
858a3d47 | 336 | ret = td_io_queue(td, io_u); |
36167d82 | 337 | if (ret < 0) { |
e1161c32 | 338 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 339 | put_io_u(td, io_u); |
858a3d47 | 340 | return 1; |
36167d82 | 341 | } else if (ret == FIO_Q_QUEUED) { |
d7762cf8 | 342 | if (io_u_queued_complete(td, 1) < 0) |
36167d82 | 343 | return 1; |
36167d82 JA |
344 | } else if (ret == FIO_Q_COMPLETED) { |
345 | if (io_u->error) { | |
e1161c32 | 346 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
347 | return 1; |
348 | } | |
858a3d47 | 349 | |
d7762cf8 | 350 | if (io_u_sync_complete(td, io_u) < 0) |
b2fdda43 | 351 | return 1; |
755200a3 JA |
352 | } else if (ret == FIO_Q_BUSY) { |
353 | if (td_io_commit(td)) | |
354 | return 1; | |
355 | goto requeue; | |
858a3d47 JA |
356 | } |
357 | ||
358 | return 0; | |
359 | } | |
360 | ||
993bf48b JA |
361 | static inline void update_tv_cache(struct thread_data *td) |
362 | { | |
363 | if ((++td->tv_cache_nr & td->tv_cache_mask) == td->tv_cache_mask) | |
364 | fio_gettime(&td->tv_cache, NULL); | |
365 | } | |
366 | ||
906c8d75 | 367 | /* |
34403fb1 | 368 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
369 | * reads the blocks back in, and checks the crc/md5 of the data. |
370 | */ | |
1e97cce9 | 371 | static void do_verify(struct thread_data *td) |
ebac4655 | 372 | { |
53cdc686 | 373 | struct fio_file *f; |
36167d82 | 374 | struct io_u *io_u; |
af52b345 JA |
375 | int ret, min_events; |
376 | unsigned int i; | |
e5b401d4 JA |
377 | |
378 | /* | |
379 | * sync io first and invalidate cache, to make sure we really | |
380 | * read from disk. | |
381 | */ | |
382 | for_each_file(td, f, i) { | |
3d7b485f JA |
383 | if (!(f->flags & FIO_FILE_OPEN)) |
384 | continue; | |
b2fdda43 JA |
385 | if (fio_io_sync(td, f)) |
386 | break; | |
387 | if (file_invalidate_cache(td, f)) | |
388 | break; | |
e5b401d4 | 389 | } |
ebac4655 | 390 | |
b2fdda43 JA |
391 | if (td->error) |
392 | return; | |
393 | ||
ebac4655 JA |
394 | td_set_runstate(td, TD_VERIFYING); |
395 | ||
36167d82 JA |
396 | io_u = NULL; |
397 | while (!td->terminate) { | |
4950421a | 398 | int ret2, full; |
5451792e | 399 | |
ebac4655 JA |
400 | io_u = __get_io_u(td); |
401 | if (!io_u) | |
402 | break; | |
403 | ||
993bf48b JA |
404 | update_tv_cache(td); |
405 | ||
406 | if (runtime_exceeded(td, &td->tv_cache)) { | |
069c2918 | 407 | put_io_u(td, io_u); |
90a87d4b | 408 | td->terminate = 1; |
02bcaa8c | 409 | break; |
069c2918 | 410 | } |
02bcaa8c | 411 | |
069c2918 JA |
412 | if (get_next_verify(td, io_u)) { |
413 | put_io_u(td, io_u); | |
ebac4655 | 414 | break; |
069c2918 | 415 | } |
ebac4655 | 416 | |
069c2918 JA |
417 | if (td_io_prep(td, io_u)) { |
418 | put_io_u(td, io_u); | |
53cdc686 | 419 | break; |
069c2918 | 420 | } |
d7762cf8 JA |
421 | |
422 | io_u->end_io = verify_io_u; | |
53cdc686 | 423 | |
11786802 | 424 | ret = td_io_queue(td, io_u); |
36167d82 JA |
425 | switch (ret) { |
426 | case FIO_Q_COMPLETED: | |
427 | if (io_u->error) | |
22819ec2 | 428 | ret = -io_u->error; |
9e9d164e | 429 | else if (io_u->resid) { |
36167d82 | 430 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 431 | struct fio_file *f = io_u->file; |
ebac4655 | 432 | |
9e9d164e JA |
433 | /* |
434 | * zero read, fail | |
435 | */ | |
436 | if (!bytes) { | |
41d9f0fd | 437 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
438 | put_io_u(td, io_u); |
439 | break; | |
440 | } | |
8400d9b2 | 441 | |
36167d82 JA |
442 | io_u->xfer_buflen = io_u->resid; |
443 | io_u->xfer_buf += bytes; | |
8400d9b2 JA |
444 | io_u->offset += bytes; |
445 | ||
30061b97 JA |
446 | td->ts.short_io_u[io_u->ddir]++; |
447 | ||
d460eb31 | 448 | if (io_u->offset == f->real_file_size) |
8400d9b2 JA |
449 | goto sync_done; |
450 | ||
11786802 JA |
451 | requeue_io_u(td, &io_u); |
452 | } else { | |
8400d9b2 | 453 | sync_done: |
11786802 JA |
454 | ret = io_u_sync_complete(td, io_u); |
455 | if (ret < 0) | |
456 | break; | |
36167d82 | 457 | } |
36167d82 JA |
458 | continue; |
459 | case FIO_Q_QUEUED: | |
460 | break; | |
755200a3 JA |
461 | case FIO_Q_BUSY: |
462 | requeue_io_u(td, &io_u); | |
5451792e JA |
463 | ret2 = td_io_commit(td); |
464 | if (ret2 < 0) | |
465 | ret = ret2; | |
755200a3 | 466 | break; |
36167d82 JA |
467 | default: |
468 | assert(ret < 0); | |
e1161c32 | 469 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
470 | break; |
471 | } | |
472 | ||
99784632 | 473 | if (ret < 0 || td->error) |
3af6ef39 JA |
474 | break; |
475 | ||
ebac4655 | 476 | /* |
3af6ef39 JA |
477 | * if we can queue more, do so. but check if there are |
478 | * completed io_u's first. | |
ebac4655 | 479 | */ |
4950421a JA |
480 | full = queue_full(td) || ret == FIO_Q_BUSY; |
481 | if (full || !td->o.iodepth_batch_complete) { | |
482 | min_events = td->o.iodepth_batch_complete; | |
483 | if (full && !min_events) | |
838bc709 | 484 | min_events = 1; |
e916b390 | 485 | |
4950421a JA |
486 | do { |
487 | /* | |
488 | * Reap required number of io units, if any, | |
489 | * and do the verification on them through | |
490 | * the callback handler | |
491 | */ | |
492 | if (io_u_queued_complete(td, min_events) < 0) { | |
493 | ret = -1; | |
494 | break; | |
495 | } | |
496 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
497 | } | |
498 | if (ret < 0) | |
ebac4655 | 499 | break; |
36167d82 | 500 | } |
ebac4655 | 501 | |
c01c0395 JA |
502 | if (!td->error) { |
503 | min_events = td->cur_depth; | |
504 | ||
505 | if (min_events) | |
506 | ret = io_u_queued_complete(td, min_events); | |
507 | } else | |
ebac4655 JA |
508 | cleanup_pending_aio(td); |
509 | ||
510 | td_set_runstate(td, TD_RUNNING); | |
511 | } | |
512 | ||
32cd46a0 | 513 | /* |
906c8d75 | 514 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
515 | * and reaps them, checking for rate and errors along the way. |
516 | */ | |
ebac4655 JA |
517 | static void do_io(struct thread_data *td) |
518 | { | |
ebac4655 | 519 | unsigned long usec; |
af52b345 JA |
520 | unsigned int i; |
521 | int ret = 0; | |
ebac4655 | 522 | |
b29ee5b3 JA |
523 | if (in_ramp_time(td)) |
524 | td_set_runstate(td, TD_RAMP); | |
525 | else | |
526 | td_set_runstate(td, TD_RUNNING); | |
5853e5a8 | 527 | |
7bb48f84 | 528 | while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) { |
97601024 JA |
529 | struct timeval comp_time; |
530 | long bytes_done = 0; | |
84585003 | 531 | int min_evts = 0; |
ebac4655 | 532 | struct io_u *io_u; |
4950421a | 533 | int ret2, full; |
ebac4655 JA |
534 | |
535 | if (td->terminate) | |
536 | break; | |
537 | ||
3d7c391d | 538 | io_u = get_io_u(td); |
ebac4655 JA |
539 | if (!io_u) |
540 | break; | |
541 | ||
993bf48b | 542 | update_tv_cache(td); |
97601024 | 543 | |
993bf48b | 544 | if (runtime_exceeded(td, &td->tv_cache)) { |
97601024 | 545 | put_io_u(td, io_u); |
90a87d4b | 546 | td->terminate = 1; |
97601024 JA |
547 | break; |
548 | } | |
36167d82 | 549 | |
b67740d3 JA |
550 | /* |
551 | * Add verification end_io handler, if asked to verify | |
552 | * a previously written file. | |
553 | */ | |
cc3fc855 | 554 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ) { |
b67740d3 | 555 | io_u->end_io = verify_io_u; |
d8fab1b6 | 556 | td_set_runstate(td, TD_VERIFYING); |
b29ee5b3 JA |
557 | } else if (in_ramp_time(td)) |
558 | td_set_runstate(td, TD_RAMP); | |
559 | else | |
d8fab1b6 | 560 | td_set_runstate(td, TD_RUNNING); |
b67740d3 | 561 | |
11786802 | 562 | ret = td_io_queue(td, io_u); |
36167d82 JA |
563 | switch (ret) { |
564 | case FIO_Q_COMPLETED: | |
5451792e JA |
565 | if (io_u->error) |
566 | ret = -io_u->error; | |
9e9d164e | 567 | else if (io_u->resid) { |
36167d82 | 568 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 569 | struct fio_file *f = io_u->file; |
36167d82 | 570 | |
9e9d164e JA |
571 | /* |
572 | * zero read, fail | |
573 | */ | |
574 | if (!bytes) { | |
41d9f0fd | 575 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
576 | put_io_u(td, io_u); |
577 | break; | |
578 | } | |
579 | ||
cec6b55d | 580 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 581 | io_u->xfer_buf += bytes; |
5a7c5680 JA |
582 | io_u->offset += bytes; |
583 | ||
30061b97 JA |
584 | td->ts.short_io_u[io_u->ddir]++; |
585 | ||
d460eb31 | 586 | if (io_u->offset == f->real_file_size) |
5a7c5680 JA |
587 | goto sync_done; |
588 | ||
11786802 JA |
589 | requeue_io_u(td, &io_u); |
590 | } else { | |
5a7c5680 | 591 | sync_done: |
993bf48b JA |
592 | if (should_check_rate(td)) |
593 | fio_gettime(&comp_time, NULL); | |
594 | ||
11786802 JA |
595 | bytes_done = io_u_sync_complete(td, io_u); |
596 | if (bytes_done < 0) | |
597 | ret = bytes_done; | |
cec6b55d | 598 | } |
36167d82 JA |
599 | break; |
600 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
601 | /* |
602 | * if the engine doesn't have a commit hook, | |
603 | * the io_u is really queued. if it does have such | |
604 | * a hook, it has to call io_u_queued() itself. | |
605 | */ | |
606 | if (td->io_ops->commit == NULL) | |
607 | io_u_queued(td, io_u); | |
36167d82 | 608 | break; |
755200a3 JA |
609 | case FIO_Q_BUSY: |
610 | requeue_io_u(td, &io_u); | |
5451792e JA |
611 | ret2 = td_io_commit(td); |
612 | if (ret2 < 0) | |
613 | ret = ret2; | |
755200a3 | 614 | break; |
36167d82 JA |
615 | default: |
616 | assert(ret < 0); | |
617 | put_io_u(td, io_u); | |
618 | break; | |
ebac4655 JA |
619 | } |
620 | ||
99784632 | 621 | if (ret < 0 || td->error) |
36167d82 JA |
622 | break; |
623 | ||
97601024 JA |
624 | /* |
625 | * See if we need to complete some commands | |
626 | */ | |
4950421a JA |
627 | full = queue_full(td) || ret == FIO_Q_BUSY; |
628 | if (full || !td->o.iodepth_batch_complete) { | |
629 | min_evts = td->o.iodepth_batch_complete; | |
630 | if (full && !min_evts) | |
36167d82 | 631 | min_evts = 1; |
4950421a | 632 | |
993bf48b JA |
633 | if (should_check_rate(td)) |
634 | fio_gettime(&comp_time, NULL); | |
4950421a JA |
635 | |
636 | do { | |
637 | ret = io_u_queued_complete(td, min_evts); | |
638 | if (ret <= 0) | |
639 | break; | |
640 | ||
641 | bytes_done += ret; | |
642 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
ebac4655 JA |
643 | } |
644 | ||
4950421a JA |
645 | if (ret < 0) |
646 | break; | |
97601024 JA |
647 | if (!bytes_done) |
648 | continue; | |
649 | ||
ebac4655 JA |
650 | /* |
651 | * the rate is batched for now, it should work for batches | |
652 | * of completions except the very first one which may look | |
653 | * a little bursty | |
654 | */ | |
993bf48b JA |
655 | if (!in_ramp_time(td) && should_check_rate(td)) { |
656 | usec = utime_since(&td->tv_cache, &comp_time); | |
ebac4655 | 657 | |
721938ae | 658 | rate_throttle(td, usec, bytes_done); |
ebac4655 | 659 | |
721938ae JA |
660 | if (check_min_rate(td, &comp_time)) { |
661 | if (exitall_on_terminate) | |
662 | terminate_threads(td->groupid); | |
663 | td_verror(td, EIO, "check_min_rate"); | |
664 | break; | |
665 | } | |
ebac4655 JA |
666 | } |
667 | ||
2dc1bbeb | 668 | if (td->o.thinktime) { |
9c1f7434 JA |
669 | unsigned long long b; |
670 | ||
671 | b = td->io_blocks[0] + td->io_blocks[1]; | |
2dc1bbeb | 672 | if (!(b % td->o.thinktime_blocks)) { |
48097d5c JA |
673 | int left; |
674 | ||
2dc1bbeb JA |
675 | if (td->o.thinktime_spin) |
676 | __usec_sleep(td->o.thinktime_spin); | |
48097d5c | 677 | |
2dc1bbeb | 678 | left = td->o.thinktime - td->o.thinktime_spin; |
48097d5c JA |
679 | if (left) |
680 | usec_sleep(td, left); | |
681 | } | |
9c1f7434 | 682 | } |
ebac4655 JA |
683 | } |
684 | ||
aa31f1f1 SL |
685 | if (td->o.fill_device && td->error == ENOSPC) { |
686 | td->error = 0; | |
687 | td->terminate = 1; | |
688 | } | |
4d2413c6 | 689 | if (!td->error) { |
3d7c391d JA |
690 | struct fio_file *f; |
691 | ||
c01c0395 JA |
692 | i = td->cur_depth; |
693 | if (i) | |
694 | ret = io_u_queued_complete(td, i); | |
ebac4655 | 695 | |
2dc1bbeb | 696 | if (should_fsync(td) && td->o.end_fsync) { |
84585003 | 697 | td_set_runstate(td, TD_FSYNCING); |
3d7b485f JA |
698 | |
699 | for_each_file(td, f, i) { | |
700 | if (!(f->flags & FIO_FILE_OPEN)) | |
701 | continue; | |
858a3d47 | 702 | fio_io_sync(td, f); |
3d7b485f | 703 | } |
84585003 | 704 | } |
c01c0395 JA |
705 | } else |
706 | cleanup_pending_aio(td); | |
2ba1c290 JA |
707 | |
708 | /* | |
709 | * stop job if we failed doing any IO | |
710 | */ | |
711 | if ((td->this_io_bytes[0] + td->this_io_bytes[1]) == 0) | |
712 | td->done = 1; | |
ebac4655 JA |
713 | } |
714 | ||
ebac4655 JA |
715 | static void cleanup_io_u(struct thread_data *td) |
716 | { | |
01743ee1 | 717 | struct flist_head *entry, *n; |
ebac4655 JA |
718 | struct io_u *io_u; |
719 | ||
01743ee1 JA |
720 | flist_for_each_safe(entry, n, &td->io_u_freelist) { |
721 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 722 | |
01743ee1 | 723 | flist_del(&io_u->list); |
ebac4655 JA |
724 | free(io_u); |
725 | } | |
726 | ||
2f9ade3c | 727 | free_io_mem(td); |
ebac4655 JA |
728 | } |
729 | ||
730 | static int init_io_u(struct thread_data *td) | |
731 | { | |
732 | struct io_u *io_u; | |
a00735e6 | 733 | unsigned int max_bs; |
ebac4655 JA |
734 | int i, max_units; |
735 | char *p; | |
736 | ||
1e3c09af | 737 | max_units = td->o.iodepth; |
2dc1bbeb | 738 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
5ec10eaa JA |
739 | td->orig_buffer_size = (unsigned long long) max_bs |
740 | * (unsigned long long) max_units; | |
741 | ||
742 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { | |
743 | unsigned long bs; | |
74b025b0 | 744 | |
5ec10eaa JA |
745 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; |
746 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); | |
747 | } | |
ebac4655 | 748 | |
c3990645 JA |
749 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { |
750 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
751 | return 1; | |
752 | } | |
753 | ||
2f9ade3c JA |
754 | if (allocate_io_mem(td)) |
755 | return 1; | |
ebac4655 | 756 | |
b3f378e9 JA |
757 | if (td->o.odirect) |
758 | p = ALIGN(td->orig_buffer); | |
759 | else | |
760 | p = td->orig_buffer; | |
761 | ||
ebac4655 | 762 | for (i = 0; i < max_units; i++) { |
db1cd90b JA |
763 | if (td->terminate) |
764 | return 1; | |
ebac4655 JA |
765 | io_u = malloc(sizeof(*io_u)); |
766 | memset(io_u, 0, sizeof(*io_u)); | |
01743ee1 | 767 | INIT_FLIST_HEAD(&io_u->list); |
ebac4655 | 768 | |
b4c5e1ac JA |
769 | if (!(td->io_ops->flags & FIO_NOIO)) { |
770 | io_u->buf = p + max_bs * i; | |
e9459e5a | 771 | |
5973cafb JA |
772 | if (td_write(td) && !td->o.refill_buffers) |
773 | io_u_fill_buffer(td, io_u, max_bs); | |
b4c5e1ac | 774 | } |
6b9cea23 | 775 | |
b1ff3403 | 776 | io_u->index = i; |
0c6e7517 | 777 | io_u->flags = IO_U_F_FREE; |
01743ee1 | 778 | flist_add(&io_u->list, &td->io_u_freelist); |
ebac4655 JA |
779 | } |
780 | ||
781 | return 0; | |
782 | } | |
783 | ||
da86774e JA |
784 | static int switch_ioscheduler(struct thread_data *td) |
785 | { | |
786 | char tmp[256], tmp2[128]; | |
787 | FILE *f; | |
788 | int ret; | |
789 | ||
ba0fbe10 | 790 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
791 | return 0; |
792 | ||
da86774e JA |
793 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
794 | ||
795 | f = fopen(tmp, "r+"); | |
796 | if (!f) { | |
cbf5c1d7 | 797 | if (errno == ENOENT) { |
5ec10eaa JA |
798 | log_err("fio: os or kernel doesn't support IO scheduler" |
799 | " switching\n"); | |
cbf5c1d7 JA |
800 | return 0; |
801 | } | |
802 | td_verror(td, errno, "fopen iosched"); | |
da86774e JA |
803 | return 1; |
804 | } | |
805 | ||
806 | /* | |
807 | * Set io scheduler. | |
808 | */ | |
2dc1bbeb | 809 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); |
da86774e | 810 | if (ferror(f) || ret != 1) { |
e1161c32 | 811 | td_verror(td, errno, "fwrite"); |
da86774e JA |
812 | fclose(f); |
813 | return 1; | |
814 | } | |
815 | ||
816 | rewind(f); | |
817 | ||
818 | /* | |
819 | * Read back and check that the selected scheduler is now the default. | |
820 | */ | |
821 | ret = fread(tmp, 1, sizeof(tmp), f); | |
822 | if (ferror(f) || ret < 0) { | |
e1161c32 | 823 | td_verror(td, errno, "fread"); |
da86774e JA |
824 | fclose(f); |
825 | return 1; | |
826 | } | |
827 | ||
2dc1bbeb | 828 | sprintf(tmp2, "[%s]", td->o.ioscheduler); |
da86774e | 829 | if (!strstr(tmp, tmp2)) { |
2dc1bbeb | 830 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); |
e1161c32 | 831 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
832 | fclose(f); |
833 | return 1; | |
834 | } | |
835 | ||
836 | fclose(f); | |
837 | return 0; | |
838 | } | |
839 | ||
492158cf JA |
840 | static int keep_running(struct thread_data *td) |
841 | { | |
842 | unsigned long long io_done; | |
843 | ||
20e354ef JA |
844 | if (td->done) |
845 | return 0; | |
492158cf JA |
846 | if (td->o.time_based) |
847 | return 1; | |
848 | if (td->o.loops) { | |
849 | td->o.loops--; | |
850 | return 1; | |
851 | } | |
852 | ||
5ec10eaa JA |
853 | io_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE] |
854 | + td->io_skip_bytes; | |
492158cf JA |
855 | if (io_done < td->o.size) |
856 | return 1; | |
857 | ||
858 | return 0; | |
859 | } | |
860 | ||
b29ee5b3 | 861 | static void reset_io_counters(struct thread_data *td) |
ebac4655 | 862 | { |
756867bd | 863 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 864 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 865 | td->zone_bytes = 0; |
d7d3b49b | 866 | td->rate_bytes = 0; |
4e991c23 | 867 | td->rate_blocks = 0; |
38d77cae | 868 | td->rw_end_set[0] = td->rw_end_set[1] = 0; |
ebac4655 | 869 | |
c1324df1 JA |
870 | td->last_was_sync = 0; |
871 | ||
2ba1c290 JA |
872 | /* |
873 | * reset file done count if we are to start over | |
874 | */ | |
875 | if (td->o.time_based || td->o.loops) | |
48f5abd3 | 876 | td->nr_done_files = 0; |
b29ee5b3 JA |
877 | } |
878 | ||
879 | void reset_all_stats(struct thread_data *td) | |
880 | { | |
881 | struct timeval tv; | |
882 | int i; | |
883 | ||
884 | reset_io_counters(td); | |
885 | ||
886 | for (i = 0; i < 2; i++) { | |
887 | td->io_bytes[i] = 0; | |
888 | td->io_blocks[i] = 0; | |
889 | td->io_issues[i] = 0; | |
890 | td->ts.total_io_u[i] = 0; | |
891 | } | |
892 | ||
893 | fio_gettime(&tv, NULL); | |
894 | memcpy(&td->epoch, &tv, sizeof(tv)); | |
895 | memcpy(&td->start, &tv, sizeof(tv)); | |
896 | } | |
897 | ||
898 | static int clear_io_state(struct thread_data *td) | |
899 | { | |
900 | struct fio_file *f; | |
901 | unsigned int i; | |
902 | int ret; | |
903 | ||
904 | reset_io_counters(td); | |
281f9b63 | 905 | |
24ffd2c2 | 906 | close_files(td); |
53cdc686 | 907 | |
a978ba68 JA |
908 | ret = 0; |
909 | for_each_file(td, f, i) { | |
281f9b63 | 910 | f->flags &= ~FIO_FILE_DONE; |
a978ba68 JA |
911 | ret = td_io_open_file(td, f); |
912 | if (ret) | |
913 | break; | |
53cdc686 | 914 | } |
a978ba68 JA |
915 | |
916 | return ret; | |
ebac4655 JA |
917 | } |
918 | ||
906c8d75 JA |
919 | /* |
920 | * Entry point for the thread based jobs. The process based jobs end up | |
921 | * here as well, after a little setup. | |
922 | */ | |
ebac4655 JA |
923 | static void *thread_main(void *data) |
924 | { | |
10927316 | 925 | unsigned long long runtime[2], elapsed; |
ebac4655 | 926 | struct thread_data *td = data; |
a978ba68 | 927 | int clear_state; |
ebac4655 | 928 | |
2dc1bbeb | 929 | if (!td->o.use_thread) |
ebac4655 JA |
930 | setsid(); |
931 | ||
932 | td->pid = getpid(); | |
933 | ||
5921e80c | 934 | dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); |
ee56ad50 | 935 | |
01743ee1 JA |
936 | INIT_FLIST_HEAD(&td->io_u_freelist); |
937 | INIT_FLIST_HEAD(&td->io_u_busylist); | |
938 | INIT_FLIST_HEAD(&td->io_u_requeues); | |
939 | INIT_FLIST_HEAD(&td->io_log_list); | |
940 | INIT_FLIST_HEAD(&td->io_hist_list); | |
bb5d7d0b | 941 | td->io_hist_tree = RB_ROOT; |
aea47d44 | 942 | |
db1cd90b | 943 | td_set_runstate(td, TD_INITIALIZED); |
cdd18ad8 JA |
944 | fio_mutex_up(startup_mutex); |
945 | fio_mutex_down(td->mutex); | |
db1cd90b JA |
946 | |
947 | /* | |
cdd18ad8 | 948 | * the ->mutex mutex is now no longer used, close it to avoid |
db1cd90b JA |
949 | * eating a file descriptor |
950 | */ | |
cdd18ad8 | 951 | fio_mutex_remove(td->mutex); |
db1cd90b | 952 | |
d84f8d49 JA |
953 | /* |
954 | * May alter parameters that init_io_u() will use, so we need to | |
955 | * do this first. | |
956 | */ | |
957 | if (init_iolog(td)) | |
958 | goto err; | |
959 | ||
ebac4655 | 960 | if (init_io_u(td)) |
db1cd90b | 961 | goto err; |
ebac4655 | 962 | |
375b2695 | 963 | if (td->o.cpumask_set && fio_setaffinity(td) == -1) { |
e1161c32 | 964 | td_verror(td, errno, "cpu_set_affinity"); |
db1cd90b | 965 | goto err; |
ebac4655 JA |
966 | } |
967 | ||
be4ecfdf JA |
968 | if (td->o.gtod_cpu) { |
969 | if (fio_getaffinity(td->pid, &td->o.cpumask) == -1) { | |
970 | td_verror(td, errno, "cpu_get_affinity"); | |
971 | goto err; | |
972 | } | |
973 | fio_cpu_clear(&td->o.cpumask, td->o.gtod_cpu); | |
974 | if (fio_setaffinity(td) == -1) { | |
975 | td_verror(td, errno, "cpu_set_affinity"); | |
976 | goto err; | |
977 | } | |
978 | } | |
979 | ||
ac684785 | 980 | if (td->ioprio_set) { |
ebac4655 | 981 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
e1161c32 | 982 | td_verror(td, errno, "ioprio_set"); |
db1cd90b | 983 | goto err; |
ebac4655 JA |
984 | } |
985 | } | |
986 | ||
2dc1bbeb | 987 | if (nice(td->o.nice) == -1) { |
e1161c32 | 988 | td_verror(td, errno, "nice"); |
db1cd90b | 989 | goto err; |
b6f4d880 JA |
990 | } |
991 | ||
2dc1bbeb | 992 | if (td->o.ioscheduler && switch_ioscheduler(td)) |
db1cd90b | 993 | goto err; |
37f56873 | 994 | |
2dc1bbeb | 995 | if (!td->o.create_serialize && setup_files(td)) |
ebac4655 JA |
996 | goto err; |
997 | ||
7d6c5283 JA |
998 | if (td_io_init(td)) |
999 | goto err; | |
1000 | ||
b5af8293 JA |
1001 | if (open_files(td)) |
1002 | goto err; | |
1003 | ||
68727076 JA |
1004 | if (init_random_map(td)) |
1005 | goto err; | |
1006 | ||
2dc1bbeb JA |
1007 | if (td->o.exec_prerun) { |
1008 | if (system(td->o.exec_prerun) < 0) | |
69cfd7e0 JA |
1009 | goto err; |
1010 | } | |
4e0ba8af | 1011 | |
69008999 | 1012 | fio_gettime(&td->epoch, NULL); |
756867bd | 1013 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 JA |
1014 | |
1015 | runtime[0] = runtime[1] = 0; | |
a978ba68 | 1016 | clear_state = 0; |
492158cf | 1017 | while (keep_running(td)) { |
02bcaa8c | 1018 | fio_gettime(&td->start, NULL); |
756867bd | 1019 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
993bf48b | 1020 | memcpy(&td->tv_cache, &td->start, sizeof(td->start)); |
ebac4655 | 1021 | |
2dc1bbeb | 1022 | if (td->o.ratemin) |
5ec10eaa JA |
1023 | memcpy(&td->lastrate, &td->ts.stat_sample_time, |
1024 | sizeof(td->lastrate)); | |
ebac4655 | 1025 | |
a978ba68 JA |
1026 | if (clear_state && clear_io_state(td)) |
1027 | break; | |
1028 | ||
ebac4655 JA |
1029 | prune_io_piece_log(td); |
1030 | ||
ba0fbe10 | 1031 | do_io(td); |
ebac4655 | 1032 | |
a978ba68 JA |
1033 | clear_state = 1; |
1034 | ||
38d77cae JA |
1035 | if (td_read(td) && td->io_bytes[DDIR_READ]) { |
1036 | if (td->rw_end_set[DDIR_READ]) | |
5ec10eaa JA |
1037 | elapsed = utime_since(&td->start, |
1038 | &td->rw_end[DDIR_READ]); | |
38d77cae JA |
1039 | else |
1040 | elapsed = utime_since_now(&td->start); | |
1041 | ||
1042 | runtime[DDIR_READ] += elapsed; | |
1043 | } | |
1044 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { | |
1045 | if (td->rw_end_set[DDIR_WRITE]) | |
5ec10eaa JA |
1046 | elapsed = utime_since(&td->start, |
1047 | &td->rw_end[DDIR_WRITE]); | |
38d77cae JA |
1048 | else |
1049 | elapsed = utime_since_now(&td->start); | |
1050 | ||
1051 | runtime[DDIR_WRITE] += elapsed; | |
1052 | } | |
5ec10eaa | 1053 | |
ebac4655 JA |
1054 | if (td->error || td->terminate) |
1055 | break; | |
1056 | ||
e84c73a8 SL |
1057 | if (!td->o.do_verify || |
1058 | td->o.verify == VERIFY_NONE || | |
b67740d3 | 1059 | (td->io_ops->flags & FIO_UNIDIR)) |
ebac4655 JA |
1060 | continue; |
1061 | ||
a978ba68 JA |
1062 | if (clear_io_state(td)) |
1063 | break; | |
1064 | ||
02bcaa8c | 1065 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
1066 | |
1067 | do_verify(td); | |
1068 | ||
69008999 | 1069 | runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
1070 | |
1071 | if (td->error || td->terminate) | |
1072 | break; | |
1073 | } | |
1074 | ||
36dff966 | 1075 | update_rusage_stat(td); |
47f0cc48 YHJT |
1076 | td->ts.runtime[0] = (runtime[0] + 999) / 1000; |
1077 | td->ts.runtime[1] = (runtime[1] + 999) / 1000; | |
756867bd JA |
1078 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
1079 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
1080 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
1081 | ||
e3cedca7 JA |
1082 | if (td->ts.bw_log) { |
1083 | if (td->o.bw_log_file) | |
1084 | finish_log_named(td, td->ts.bw_log, td->o.bw_log_file, "bw"); | |
1085 | else | |
1086 | finish_log(td, td->ts.bw_log, "bw"); | |
1087 | } | |
1088 | if (td->ts.slat_log) { | |
1089 | if (td->o.lat_log_file) | |
1090 | finish_log_named(td, td->ts.slat_log, td->o.lat_log_file, "clat"); | |
1091 | else | |
1092 | finish_log(td, td->ts.slat_log, "slat"); | |
1093 | } | |
1094 | if (td->ts.clat_log) { | |
1095 | if (td->o.lat_log_file) | |
1096 | finish_log_named(td, td->ts.clat_log, td->o.lat_log_file, "clat"); | |
1097 | else | |
1098 | finish_log(td, td->ts.clat_log, "clat"); | |
1099 | } | |
2dc1bbeb JA |
1100 | if (td->o.exec_postrun) { |
1101 | if (system(td->o.exec_postrun) < 0) | |
1102 | log_err("fio: postrun %s failed\n", td->o.exec_postrun); | |
69cfd7e0 | 1103 | } |
ebac4655 JA |
1104 | |
1105 | if (exitall_on_terminate) | |
390c40e2 | 1106 | terminate_threads(td->groupid); |
ebac4655 JA |
1107 | |
1108 | err: | |
5bf13a5a | 1109 | if (td->error) |
5921e80c | 1110 | printf("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, |
5ec10eaa | 1111 | td->verror); |
24ffd2c2 | 1112 | close_and_free_files(td); |
2866c82d | 1113 | close_ioengine(td); |
ebac4655 | 1114 | cleanup_io_u(td); |
f29b25a3 JA |
1115 | |
1116 | /* | |
1117 | * do this very late, it will log file closing as well | |
1118 | */ | |
1119 | if (td->o.write_iolog_file) | |
1120 | write_iolog_close(td); | |
1121 | ||
d23bb327 | 1122 | options_mem_free(td); |
ebac4655 | 1123 | td_set_runstate(td, TD_EXITED); |
43d76807 | 1124 | return (void *) (unsigned long) td->error; |
ebac4655 JA |
1125 | } |
1126 | ||
906c8d75 JA |
1127 | /* |
1128 | * We cannot pass the td data into a forked process, so attach the td and | |
1129 | * pass it to the thread worker. | |
1130 | */ | |
a6418147 | 1131 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
1132 | { |
1133 | struct thread_data *td; | |
a6418147 | 1134 | void *data, *ret; |
ebac4655 JA |
1135 | |
1136 | data = shmat(shmid, NULL, 0); | |
1137 | if (data == (void *) -1) { | |
a6418147 JA |
1138 | int __err = errno; |
1139 | ||
ebac4655 | 1140 | perror("shmat"); |
a6418147 | 1141 | return __err; |
ebac4655 JA |
1142 | } |
1143 | ||
1144 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 1145 | ret = thread_main(td); |
ebac4655 | 1146 | shmdt(data); |
43d76807 | 1147 | return (int) (unsigned long) ret; |
ebac4655 JA |
1148 | } |
1149 | ||
906c8d75 JA |
1150 | /* |
1151 | * Run over the job map and reap the threads that have exited, if any. | |
1152 | */ | |
ebac4655 JA |
1153 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
1154 | { | |
34572e28 | 1155 | struct thread_data *td; |
1f809d15 | 1156 | int i, cputhreads, realthreads, pending, status, ret; |
ebac4655 JA |
1157 | |
1158 | /* | |
1159 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1160 | */ | |
1f809d15 | 1161 | realthreads = pending = cputhreads = 0; |
34572e28 | 1162 | for_each_td(td, i) { |
3707f45b | 1163 | int flags = 0; |
a2f77c9f | 1164 | |
84585003 JA |
1165 | /* |
1166 | * ->io_ops is NULL for a thread that has closed its | |
1167 | * io engine | |
1168 | */ | |
ba0fbe10 | 1169 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 | 1170 | cputhreads++; |
1f809d15 JA |
1171 | else |
1172 | realthreads++; | |
b990b5c0 | 1173 | |
a1dedc1f AC |
1174 | if (!td->pid) { |
1175 | pending++; | |
1176 | continue; | |
1177 | } | |
1178 | if (td->runstate == TD_REAPED) | |
a2f77c9f | 1179 | continue; |
2dc1bbeb | 1180 | if (td->o.use_thread) { |
3707f45b JA |
1181 | if (td->runstate == TD_EXITED) { |
1182 | td_set_runstate(td, TD_REAPED); | |
1183 | goto reaped; | |
1184 | } | |
1185 | continue; | |
1186 | } | |
a2f77c9f JA |
1187 | |
1188 | flags = WNOHANG; | |
1189 | if (td->runstate == TD_EXITED) | |
1190 | flags = 0; | |
1191 | ||
1192 | /* | |
1193 | * check if someone quit or got killed in an unusual way | |
1194 | */ | |
1195 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 1196 | if (ret < 0) { |
a2f77c9f | 1197 | if (errno == ECHILD) { |
5921e80c JA |
1198 | log_err("fio: pid=%d disappeared %d\n", |
1199 | (int) td->pid, td->runstate); | |
a2f77c9f JA |
1200 | td_set_runstate(td, TD_REAPED); |
1201 | goto reaped; | |
1202 | } | |
1203 | perror("waitpid"); | |
1204 | } else if (ret == td->pid) { | |
1205 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
1206 | int sig = WTERMSIG(status); |
1207 | ||
d9244941 | 1208 | if (sig != SIGQUIT) |
5ec10eaa | 1209 | log_err("fio: pid=%d, got signal=%d\n", |
5921e80c | 1210 | (int) td->pid, sig); |
fab6aa71 JA |
1211 | td_set_runstate(td, TD_REAPED); |
1212 | goto reaped; | |
1213 | } | |
a2f77c9f JA |
1214 | if (WIFEXITED(status)) { |
1215 | if (WEXITSTATUS(status) && !td->error) | |
1216 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 1217 | |
a2f77c9f JA |
1218 | td_set_runstate(td, TD_REAPED); |
1219 | goto reaped; | |
a6418147 JA |
1220 | } |
1221 | } | |
ebac4655 | 1222 | |
a2f77c9f JA |
1223 | /* |
1224 | * thread is not dead, continue | |
1225 | */ | |
e48676ba | 1226 | pending++; |
a2f77c9f | 1227 | continue; |
fab6aa71 | 1228 | reaped: |
ebac4655 | 1229 | (*nr_running)--; |
2dc1bbeb JA |
1230 | (*m_rate) -= td->o.ratemin; |
1231 | (*t_rate) -= td->o.rate; | |
6f88bcb0 JA |
1232 | if (!td->pid) |
1233 | pending--; | |
a2f77c9f JA |
1234 | |
1235 | if (td->error) | |
1236 | exit_value++; | |
d3eeeabc JA |
1237 | |
1238 | done_secs += mtime_since_now(&td->epoch) / 1000; | |
ebac4655 | 1239 | } |
b990b5c0 | 1240 | |
1f809d15 | 1241 | if (*nr_running == cputhreads && !pending && realthreads) |
390c40e2 | 1242 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
1243 | } |
1244 | ||
be4ecfdf JA |
1245 | static void *gtod_thread_main(void *data) |
1246 | { | |
1247 | fio_mutex_up(startup_mutex); | |
1248 | ||
1249 | /* | |
1250 | * As long as we have jobs around, update the clock. It would be nice | |
1251 | * to have some way of NOT hammering that CPU with gettimeofday(), | |
1252 | * but I'm not sure what to use outside of a simple CPU nop to relax | |
1253 | * it - we don't want to lose precision. | |
1254 | */ | |
1255 | while (threads) { | |
1256 | fio_gtod_update(); | |
1257 | nop; | |
1258 | } | |
1259 | ||
1260 | return NULL; | |
1261 | } | |
1262 | ||
1263 | static int fio_start_gtod_thread(void) | |
1264 | { | |
1265 | if (pthread_create(>od_thread, NULL, gtod_thread_main, NULL)) { | |
1266 | perror("Can't create gtod thread"); | |
1267 | return 1; | |
1268 | } | |
1269 | if (pthread_detach(gtod_thread) < 0) { | |
1270 | perror("Can't detatch gtod thread"); | |
1271 | return 1; | |
1272 | } | |
1273 | ||
1274 | fio_mutex_down(startup_mutex); | |
1275 | return 0; | |
1276 | } | |
1277 | ||
906c8d75 JA |
1278 | /* |
1279 | * Main function for kicking off and reaping jobs, as needed. | |
1280 | */ | |
ebac4655 JA |
1281 | static void run_threads(void) |
1282 | { | |
ebac4655 JA |
1283 | struct thread_data *td; |
1284 | unsigned long spent; | |
1285 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 1286 | |
2f9ade3c JA |
1287 | if (fio_pin_memory()) |
1288 | return; | |
ebac4655 | 1289 | |
be4ecfdf JA |
1290 | if (fio_gtod_offload && fio_start_gtod_thread()) |
1291 | return; | |
1292 | ||
c6ae0a5b | 1293 | if (!terse_output) { |
9cedf167 JA |
1294 | printf("Starting "); |
1295 | if (nr_thread) | |
5ec10eaa JA |
1296 | printf("%d thread%s", nr_thread, |
1297 | nr_thread > 1 ? "s" : ""); | |
9cedf167 JA |
1298 | if (nr_process) { |
1299 | if (nr_thread) | |
1300 | printf(" and "); | |
5ec10eaa JA |
1301 | printf("%d process%s", nr_process, |
1302 | nr_process > 1 ? "es" : ""); | |
9cedf167 JA |
1303 | } |
1304 | printf("\n"); | |
c6ae0a5b JA |
1305 | fflush(stdout); |
1306 | } | |
c04f7ec3 | 1307 | |
697a606c | 1308 | set_sig_handlers(); |
4efa970e | 1309 | |
ebac4655 JA |
1310 | todo = thread_number; |
1311 | nr_running = 0; | |
1312 | nr_started = 0; | |
1313 | m_rate = t_rate = 0; | |
1314 | ||
34572e28 | 1315 | for_each_td(td, i) { |
263e529f | 1316 | print_status_init(td->thread_number - 1); |
ebac4655 | 1317 | |
2dc1bbeb | 1318 | if (!td->o.create_serialize) { |
380cf265 | 1319 | init_disk_util(td); |
ebac4655 | 1320 | continue; |
380cf265 | 1321 | } |
ebac4655 JA |
1322 | |
1323 | /* | |
1324 | * do file setup here so it happens sequentially, | |
1325 | * we don't want X number of threads getting their | |
1326 | * client data interspersed on disk | |
1327 | */ | |
53cdc686 | 1328 | if (setup_files(td)) { |
5bf13a5a JA |
1329 | exit_value++; |
1330 | if (td->error) | |
5921e80c JA |
1331 | log_err("fio: pid=%d, err=%d/%s\n", |
1332 | (int) td->pid, td->error, td->verror); | |
ebac4655 JA |
1333 | td_set_runstate(td, TD_REAPED); |
1334 | todo--; | |
c69e8875 JA |
1335 | } else { |
1336 | struct fio_file *f; | |
1337 | unsigned int i; | |
1338 | ||
1339 | /* | |
1340 | * for sharing to work, each job must always open | |
1341 | * its own files. so close them, if we opened them | |
1342 | * for creation | |
1343 | */ | |
1344 | for_each_file(td, f, i) | |
1345 | td_io_close_file(td, f); | |
5ec10eaa | 1346 | } |
380cf265 JA |
1347 | |
1348 | init_disk_util(td); | |
ebac4655 JA |
1349 | } |
1350 | ||
a2f77c9f JA |
1351 | set_genesis_time(); |
1352 | ||
ebac4655 | 1353 | while (todo) { |
75154845 JA |
1354 | struct thread_data *map[MAX_JOBS]; |
1355 | struct timeval this_start; | |
1356 | int this_jobs = 0, left; | |
1357 | ||
ebac4655 JA |
1358 | /* |
1359 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1360 | */ | |
34572e28 | 1361 | for_each_td(td, i) { |
ebac4655 JA |
1362 | if (td->runstate != TD_NOT_CREATED) |
1363 | continue; | |
1364 | ||
1365 | /* | |
1366 | * never got a chance to start, killed by other | |
1367 | * thread for some reason | |
1368 | */ | |
1369 | if (td->terminate) { | |
1370 | todo--; | |
1371 | continue; | |
1372 | } | |
1373 | ||
2dc1bbeb | 1374 | if (td->o.start_delay) { |
263e529f | 1375 | spent = mtime_since_genesis(); |
ebac4655 | 1376 | |
2dc1bbeb | 1377 | if (td->o.start_delay * 1000 > spent) |
ebac4655 JA |
1378 | continue; |
1379 | } | |
1380 | ||
6f88bcb0 JA |
1381 | if (td->o.stonewall && (nr_started || nr_running)) { |
1382 | dprint(FD_PROCESS, "%s: stonewall wait\n", | |
1383 | td->o.name); | |
ebac4655 | 1384 | break; |
6f88bcb0 | 1385 | } |
ebac4655 | 1386 | |
75154845 JA |
1387 | /* |
1388 | * Set state to created. Thread will transition | |
1389 | * to TD_INITIALIZED when it's done setting up. | |
1390 | */ | |
ebac4655 | 1391 | td_set_runstate(td, TD_CREATED); |
75154845 | 1392 | map[this_jobs++] = td; |
ebac4655 JA |
1393 | nr_started++; |
1394 | ||
2dc1bbeb | 1395 | if (td->o.use_thread) { |
ee56ad50 | 1396 | dprint(FD_PROCESS, "will pthread_create\n"); |
5ec10eaa JA |
1397 | if (pthread_create(&td->thread, NULL, |
1398 | thread_main, td)) { | |
f4705a73 | 1399 | perror("pthread_create"); |
ebac4655 | 1400 | nr_started--; |
c8bb6faf | 1401 | break; |
ebac4655 | 1402 | } |
f4705a73 JA |
1403 | if (pthread_detach(td->thread) < 0) |
1404 | perror("pthread_detach"); | |
ebac4655 | 1405 | } else { |
5e1d306e | 1406 | pid_t pid; |
ee56ad50 | 1407 | dprint(FD_PROCESS, "will fork\n"); |
5e1d306e JA |
1408 | pid = fork(); |
1409 | if (!pid) { | |
a6418147 JA |
1410 | int ret = fork_main(shm_id, i); |
1411 | ||
5e1d306e JA |
1412 | _exit(ret); |
1413 | } else if (i == fio_debug_jobno) | |
1414 | *fio_debug_jobp = pid; | |
ebac4655 | 1415 | } |
cdd18ad8 | 1416 | fio_mutex_down(startup_mutex); |
ebac4655 JA |
1417 | } |
1418 | ||
1419 | /* | |
75154845 JA |
1420 | * Wait for the started threads to transition to |
1421 | * TD_INITIALIZED. | |
ebac4655 | 1422 | */ |
02bcaa8c | 1423 | fio_gettime(&this_start, NULL); |
75154845 | 1424 | left = this_jobs; |
6ce15a32 | 1425 | while (left && !fio_abort) { |
75154845 JA |
1426 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1427 | break; | |
1428 | ||
1429 | usleep(100000); | |
1430 | ||
1431 | for (i = 0; i < this_jobs; i++) { | |
1432 | td = map[i]; | |
1433 | if (!td) | |
1434 | continue; | |
b6f4d880 | 1435 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1436 | map[i] = NULL; |
1437 | left--; | |
b6f4d880 JA |
1438 | } else if (td->runstate >= TD_EXITED) { |
1439 | map[i] = NULL; | |
1440 | left--; | |
1441 | todo--; | |
1442 | nr_running++; /* work-around... */ | |
75154845 JA |
1443 | } |
1444 | } | |
1445 | } | |
1446 | ||
1447 | if (left) { | |
3b70d7e5 | 1448 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1449 | for (i = 0; i < this_jobs; i++) { |
1450 | td = map[i]; | |
1451 | if (!td) | |
1452 | continue; | |
1453 | kill(td->pid, SIGTERM); | |
1454 | } | |
1455 | break; | |
1456 | } | |
1457 | ||
1458 | /* | |
b6f4d880 | 1459 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1460 | */ |
34572e28 | 1461 | for_each_td(td, i) { |
75154845 | 1462 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1463 | continue; |
1464 | ||
b29ee5b3 JA |
1465 | if (in_ramp_time(td)) |
1466 | td_set_runstate(td, TD_RAMP); | |
1467 | else | |
1468 | td_set_runstate(td, TD_RUNNING); | |
ebac4655 JA |
1469 | nr_running++; |
1470 | nr_started--; | |
2dc1bbeb JA |
1471 | m_rate += td->o.ratemin; |
1472 | t_rate += td->o.rate; | |
75154845 | 1473 | todo--; |
cdd18ad8 | 1474 | fio_mutex_up(td->mutex); |
ebac4655 JA |
1475 | } |
1476 | ||
1477 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1478 | ||
1479 | if (todo) | |
1480 | usleep(100000); | |
1481 | } | |
1482 | ||
1483 | while (nr_running) { | |
1484 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1485 | usleep(10000); | |
1486 | } | |
1487 | ||
1488 | update_io_ticks(); | |
2f9ade3c | 1489 | fio_unpin_memory(); |
ebac4655 JA |
1490 | } |
1491 | ||
ebac4655 JA |
1492 | int main(int argc, char *argv[]) |
1493 | { | |
29d610e1 JA |
1494 | long ps; |
1495 | ||
2e5cdb11 JA |
1496 | sinit(); |
1497 | ||
dbe1125e JA |
1498 | /* |
1499 | * We need locale for number printing, if it isn't set then just | |
1500 | * go with the US format. | |
1501 | */ | |
1502 | if (!getenv("LC_NUMERIC")) | |
1503 | setlocale(LC_NUMERIC, "en_US"); | |
1504 | ||
ebac4655 JA |
1505 | if (parse_options(argc, argv)) |
1506 | return 1; | |
1507 | ||
4b472fa3 JA |
1508 | if (!thread_number) |
1509 | return 0; | |
ebac4655 | 1510 | |
29d610e1 JA |
1511 | ps = sysconf(_SC_PAGESIZE); |
1512 | if (ps < 0) { | |
1513 | log_err("Failed to get page size\n"); | |
1514 | return 1; | |
1515 | } | |
1516 | ||
cfc99db7 | 1517 | page_size = ps; |
29d610e1 JA |
1518 | page_mask = ps - 1; |
1519 | ||
bb3884d8 JA |
1520 | if (write_bw_log) { |
1521 | setup_log(&agg_io_log[DDIR_READ]); | |
1522 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1523 | } | |
1524 | ||
cdd18ad8 | 1525 | startup_mutex = fio_mutex_init(0); |
07739b57 | 1526 | |
a2f77c9f JA |
1527 | set_genesis_time(); |
1528 | ||
ccb0fa24 | 1529 | status_timer_arm(); |
ebac4655 JA |
1530 | |
1531 | run_threads(); | |
6ce15a32 | 1532 | |
bb3884d8 | 1533 | if (!fio_abort) { |
6ce15a32 | 1534 | show_run_stats(); |
bb3884d8 | 1535 | if (write_bw_log) { |
5ec10eaa JA |
1536 | __finish_log(agg_io_log[DDIR_READ], "agg-read_bw.log"); |
1537 | __finish_log(agg_io_log[DDIR_WRITE], | |
1538 | "agg-write_bw.log"); | |
bb3884d8 JA |
1539 | } |
1540 | } | |
ebac4655 | 1541 | |
cdd18ad8 | 1542 | fio_mutex_remove(startup_mutex); |
437c9b71 | 1543 | return exit_value; |
ebac4655 | 1544 | } |