Commit | Line | Data |
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2e1df07d JA |
1 | /* |
2 | * fio - the flexible io tester | |
3 | * | |
4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> | |
5 | * Copyright (C) 2006-2012 Jens Axboe <axboe@kernel.dk> | |
6 | * | |
7 | * The license below covers all files distributed with fio unless otherwise | |
8 | * noted in the file itself. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
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 | */ | |
24 | #include <unistd.h> | |
25 | #include <fcntl.h> | |
26 | #include <string.h> | |
27 | #include <limits.h> | |
28 | #include <signal.h> | |
29 | #include <time.h> | |
30 | #include <locale.h> | |
31 | #include <assert.h> | |
32 | #include <time.h> | |
e43606c2 | 33 | #include <inttypes.h> |
2e1df07d JA |
34 | #include <sys/stat.h> |
35 | #include <sys/wait.h> | |
36 | #include <sys/ipc.h> | |
ec5c6b12 | 37 | #ifndef FIO_NO_HAVE_SHM_H |
2e1df07d | 38 | #include <sys/shm.h> |
ec5c6b12 | 39 | #endif |
2e1df07d JA |
40 | #include <sys/mman.h> |
41 | ||
42 | #include "fio.h" | |
43 | #include "hash.h" | |
44 | #include "smalloc.h" | |
45 | #include "verify.h" | |
46 | #include "trim.h" | |
47 | #include "diskutil.h" | |
48 | #include "cgroup.h" | |
49 | #include "profile.h" | |
50 | #include "lib/rand.h" | |
51 | #include "memalign.h" | |
52 | #include "server.h" | |
44404c5a | 53 | #include "lib/getrusage.h" |
f2a2ce0e | 54 | #include "idletime.h" |
2e1df07d JA |
55 | |
56 | static pthread_t disk_util_thread; | |
9ec7779f | 57 | static struct fio_mutex *disk_thread_mutex; |
2e1df07d JA |
58 | static struct fio_mutex *startup_mutex; |
59 | static struct fio_mutex *writeout_mutex; | |
60 | static struct flist_head *cgroup_list; | |
61 | static char *cgroup_mnt; | |
62 | static int exit_value; | |
63 | static volatile int fio_abort; | |
64 | ||
6eaf09d6 | 65 | struct io_log *agg_io_log[DDIR_RWDIR_CNT]; |
2e1df07d | 66 | |
a3efc919 JA |
67 | int groupid = 0; |
68 | unsigned int thread_number = 0; | |
108fea77 | 69 | unsigned int stat_number = 0; |
a3efc919 JA |
70 | unsigned int nr_process = 0; |
71 | unsigned int nr_thread = 0; | |
72 | int shm_id = 0; | |
73 | int temp_stall_ts; | |
74 | unsigned long done_secs = 0; | |
27357187 | 75 | volatile int disk_util_exit = 0; |
a3efc919 | 76 | |
2e1df07d | 77 | #define PAGE_ALIGN(buf) \ |
e43606c2 | 78 | (char *) (((uintptr_t) (buf) + page_mask) & ~page_mask) |
2e1df07d JA |
79 | |
80 | #define JOB_START_TIMEOUT (5 * 1000) | |
81 | ||
82 | static void sig_int(int sig) | |
83 | { | |
84 | if (threads) { | |
85 | if (is_backend) | |
86 | fio_server_got_signal(sig); | |
87 | else { | |
88 | log_info("\nfio: terminating on signal %d\n", sig); | |
89 | fflush(stdout); | |
90 | exit_value = 128; | |
91 | } | |
92 | ||
93 | fio_terminate_threads(TERMINATE_ALL); | |
94 | } | |
95 | } | |
96 | ||
4c6d91e8 JA |
97 | static void sig_show_status(int sig) |
98 | { | |
99 | show_running_run_stats(); | |
100 | } | |
101 | ||
2e1df07d JA |
102 | static void set_sig_handlers(void) |
103 | { | |
104 | struct sigaction act; | |
105 | ||
106 | memset(&act, 0, sizeof(act)); | |
107 | act.sa_handler = sig_int; | |
108 | act.sa_flags = SA_RESTART; | |
109 | sigaction(SIGINT, &act, NULL); | |
110 | ||
111 | memset(&act, 0, sizeof(act)); | |
112 | act.sa_handler = sig_int; | |
113 | act.sa_flags = SA_RESTART; | |
114 | sigaction(SIGTERM, &act, NULL); | |
115 | ||
2f694507 BC |
116 | /* Windows uses SIGBREAK as a quit signal from other applications */ |
117 | #ifdef WIN32 | |
118 | memset(&act, 0, sizeof(act)); | |
119 | act.sa_handler = sig_int; | |
120 | act.sa_flags = SA_RESTART; | |
121 | sigaction(SIGBREAK, &act, NULL); | |
122 | #endif | |
123 | ||
4c6d91e8 JA |
124 | memset(&act, 0, sizeof(act)); |
125 | act.sa_handler = sig_show_status; | |
126 | act.sa_flags = SA_RESTART; | |
127 | sigaction(SIGUSR1, &act, NULL); | |
128 | ||
2e1df07d JA |
129 | if (is_backend) { |
130 | memset(&act, 0, sizeof(act)); | |
131 | act.sa_handler = sig_int; | |
132 | act.sa_flags = SA_RESTART; | |
133 | sigaction(SIGPIPE, &act, NULL); | |
134 | } | |
135 | } | |
136 | ||
137 | /* | |
138 | * Check if we are above the minimum rate given. | |
139 | */ | |
140 | static int __check_min_rate(struct thread_data *td, struct timeval *now, | |
141 | enum fio_ddir ddir) | |
142 | { | |
143 | unsigned long long bytes = 0; | |
144 | unsigned long iops = 0; | |
145 | unsigned long spent; | |
146 | unsigned long rate; | |
147 | unsigned int ratemin = 0; | |
148 | unsigned int rate_iops = 0; | |
149 | unsigned int rate_iops_min = 0; | |
150 | ||
151 | assert(ddir_rw(ddir)); | |
152 | ||
153 | if (!td->o.ratemin[ddir] && !td->o.rate_iops_min[ddir]) | |
154 | return 0; | |
155 | ||
156 | /* | |
157 | * allow a 2 second settle period in the beginning | |
158 | */ | |
159 | if (mtime_since(&td->start, now) < 2000) | |
160 | return 0; | |
161 | ||
162 | iops += td->this_io_blocks[ddir]; | |
163 | bytes += td->this_io_bytes[ddir]; | |
164 | ratemin += td->o.ratemin[ddir]; | |
165 | rate_iops += td->o.rate_iops[ddir]; | |
166 | rate_iops_min += td->o.rate_iops_min[ddir]; | |
167 | ||
168 | /* | |
169 | * if rate blocks is set, sample is running | |
170 | */ | |
171 | if (td->rate_bytes[ddir] || td->rate_blocks[ddir]) { | |
172 | spent = mtime_since(&td->lastrate[ddir], now); | |
173 | if (spent < td->o.ratecycle) | |
174 | return 0; | |
175 | ||
176 | if (td->o.rate[ddir]) { | |
177 | /* | |
178 | * check bandwidth specified rate | |
179 | */ | |
180 | if (bytes < td->rate_bytes[ddir]) { | |
181 | log_err("%s: min rate %u not met\n", td->o.name, | |
182 | ratemin); | |
183 | return 1; | |
184 | } else { | |
185 | rate = ((bytes - td->rate_bytes[ddir]) * 1000) / spent; | |
186 | if (rate < ratemin || | |
187 | bytes < td->rate_bytes[ddir]) { | |
188 | log_err("%s: min rate %u not met, got" | |
189 | " %luKB/sec\n", td->o.name, | |
190 | ratemin, rate); | |
191 | return 1; | |
192 | } | |
193 | } | |
194 | } else { | |
195 | /* | |
196 | * checks iops specified rate | |
197 | */ | |
198 | if (iops < rate_iops) { | |
199 | log_err("%s: min iops rate %u not met\n", | |
200 | td->o.name, rate_iops); | |
201 | return 1; | |
202 | } else { | |
203 | rate = ((iops - td->rate_blocks[ddir]) * 1000) / spent; | |
204 | if (rate < rate_iops_min || | |
205 | iops < td->rate_blocks[ddir]) { | |
206 | log_err("%s: min iops rate %u not met," | |
207 | " got %lu\n", td->o.name, | |
208 | rate_iops_min, rate); | |
209 | } | |
210 | } | |
211 | } | |
212 | } | |
213 | ||
214 | td->rate_bytes[ddir] = bytes; | |
215 | td->rate_blocks[ddir] = iops; | |
216 | memcpy(&td->lastrate[ddir], now, sizeof(*now)); | |
217 | return 0; | |
218 | } | |
219 | ||
220 | static int check_min_rate(struct thread_data *td, struct timeval *now, | |
100f49f1 | 221 | uint64_t *bytes_done) |
2e1df07d JA |
222 | { |
223 | int ret = 0; | |
224 | ||
6eaf09d6 SL |
225 | if (bytes_done[DDIR_READ]) |
226 | ret |= __check_min_rate(td, now, DDIR_READ); | |
227 | if (bytes_done[DDIR_WRITE]) | |
228 | ret |= __check_min_rate(td, now, DDIR_WRITE); | |
229 | if (bytes_done[DDIR_TRIM]) | |
230 | ret |= __check_min_rate(td, now, DDIR_TRIM); | |
2e1df07d JA |
231 | |
232 | return ret; | |
233 | } | |
234 | ||
235 | /* | |
236 | * When job exits, we can cancel the in-flight IO if we are using async | |
237 | * io. Attempt to do so. | |
238 | */ | |
239 | static void cleanup_pending_aio(struct thread_data *td) | |
240 | { | |
241 | struct flist_head *entry, *n; | |
242 | struct io_u *io_u; | |
243 | int r; | |
244 | ||
245 | /* | |
246 | * get immediately available events, if any | |
247 | */ | |
248 | r = io_u_queued_complete(td, 0, NULL); | |
249 | if (r < 0) | |
250 | return; | |
251 | ||
252 | /* | |
253 | * now cancel remaining active events | |
254 | */ | |
255 | if (td->io_ops->cancel) { | |
256 | flist_for_each_safe(entry, n, &td->io_u_busylist) { | |
257 | io_u = flist_entry(entry, struct io_u, list); | |
258 | ||
259 | /* | |
260 | * if the io_u isn't in flight, then that generally | |
261 | * means someone leaked an io_u. complain but fix | |
262 | * it up, so we don't stall here. | |
263 | */ | |
264 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
265 | log_err("fio: non-busy IO on busy list\n"); | |
266 | put_io_u(td, io_u); | |
267 | } else { | |
268 | r = td->io_ops->cancel(td, io_u); | |
269 | if (!r) | |
270 | put_io_u(td, io_u); | |
271 | } | |
272 | } | |
273 | } | |
274 | ||
275 | if (td->cur_depth) | |
276 | r = io_u_queued_complete(td, td->cur_depth, NULL); | |
277 | } | |
278 | ||
279 | /* | |
280 | * Helper to handle the final sync of a file. Works just like the normal | |
281 | * io path, just does everything sync. | |
282 | */ | |
283 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
284 | { | |
285 | struct io_u *io_u = __get_io_u(td); | |
286 | int ret; | |
287 | ||
288 | if (!io_u) | |
289 | return 1; | |
290 | ||
291 | io_u->ddir = DDIR_SYNC; | |
292 | io_u->file = f; | |
293 | ||
294 | if (td_io_prep(td, io_u)) { | |
295 | put_io_u(td, io_u); | |
296 | return 1; | |
297 | } | |
298 | ||
299 | requeue: | |
300 | ret = td_io_queue(td, io_u); | |
301 | if (ret < 0) { | |
302 | td_verror(td, io_u->error, "td_io_queue"); | |
303 | put_io_u(td, io_u); | |
304 | return 1; | |
305 | } else if (ret == FIO_Q_QUEUED) { | |
306 | if (io_u_queued_complete(td, 1, NULL) < 0) | |
307 | return 1; | |
308 | } else if (ret == FIO_Q_COMPLETED) { | |
309 | if (io_u->error) { | |
310 | td_verror(td, io_u->error, "td_io_queue"); | |
311 | return 1; | |
312 | } | |
313 | ||
314 | if (io_u_sync_complete(td, io_u, NULL) < 0) | |
315 | return 1; | |
316 | } else if (ret == FIO_Q_BUSY) { | |
317 | if (td_io_commit(td)) | |
318 | return 1; | |
319 | goto requeue; | |
320 | } | |
321 | ||
322 | return 0; | |
323 | } | |
a3efc919 | 324 | |
2e1df07d JA |
325 | static inline void __update_tv_cache(struct thread_data *td) |
326 | { | |
327 | fio_gettime(&td->tv_cache, NULL); | |
328 | } | |
329 | ||
330 | static inline void update_tv_cache(struct thread_data *td) | |
331 | { | |
332 | if ((++td->tv_cache_nr & td->tv_cache_mask) == td->tv_cache_mask) | |
333 | __update_tv_cache(td); | |
334 | } | |
335 | ||
336 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
337 | { | |
338 | if (in_ramp_time(td)) | |
339 | return 0; | |
340 | if (!td->o.timeout) | |
341 | return 0; | |
342 | if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) | |
343 | return 1; | |
344 | ||
345 | return 0; | |
346 | } | |
347 | ||
348 | static int break_on_this_error(struct thread_data *td, enum fio_ddir ddir, | |
349 | int *retptr) | |
350 | { | |
351 | int ret = *retptr; | |
352 | ||
353 | if (ret < 0 || td->error) { | |
8b28bd41 DM |
354 | int err = td->error; |
355 | enum error_type_bit eb; | |
2e1df07d JA |
356 | |
357 | if (ret < 0) | |
358 | err = -ret; | |
2e1df07d | 359 | |
8b28bd41 DM |
360 | eb = td_error_type(ddir, err); |
361 | if (!(td->o.continue_on_error & (1 << eb))) | |
2e1df07d JA |
362 | return 1; |
363 | ||
8b28bd41 | 364 | if (td_non_fatal_error(td, eb, err)) { |
2e1df07d JA |
365 | /* |
366 | * Continue with the I/Os in case of | |
367 | * a non fatal error. | |
368 | */ | |
369 | update_error_count(td, err); | |
370 | td_clear_error(td); | |
371 | *retptr = 0; | |
372 | return 0; | |
373 | } else if (td->o.fill_device && err == ENOSPC) { | |
374 | /* | |
375 | * We expect to hit this error if | |
376 | * fill_device option is set. | |
377 | */ | |
378 | td_clear_error(td); | |
379 | td->terminate = 1; | |
380 | return 1; | |
381 | } else { | |
382 | /* | |
383 | * Stop the I/O in case of a fatal | |
384 | * error. | |
385 | */ | |
386 | update_error_count(td, err); | |
387 | return 1; | |
388 | } | |
389 | } | |
390 | ||
391 | return 0; | |
392 | } | |
393 | ||
2e1df07d JA |
394 | /* |
395 | * The main verify engine. Runs over the writes we previously submitted, | |
396 | * reads the blocks back in, and checks the crc/md5 of the data. | |
397 | */ | |
100f49f1 | 398 | static void do_verify(struct thread_data *td, uint64_t verify_bytes) |
2e1df07d | 399 | { |
100f49f1 | 400 | uint64_t bytes_done[DDIR_RWDIR_CNT] = { 0, 0, 0 }; |
2e1df07d JA |
401 | struct fio_file *f; |
402 | struct io_u *io_u; | |
403 | int ret, min_events; | |
404 | unsigned int i; | |
405 | ||
406 | dprint(FD_VERIFY, "starting loop\n"); | |
407 | ||
408 | /* | |
409 | * sync io first and invalidate cache, to make sure we really | |
410 | * read from disk. | |
411 | */ | |
412 | for_each_file(td, f, i) { | |
413 | if (!fio_file_open(f)) | |
414 | continue; | |
415 | if (fio_io_sync(td, f)) | |
416 | break; | |
417 | if (file_invalidate_cache(td, f)) | |
418 | break; | |
419 | } | |
420 | ||
421 | if (td->error) | |
422 | return; | |
423 | ||
424 | td_set_runstate(td, TD_VERIFYING); | |
425 | ||
426 | io_u = NULL; | |
427 | while (!td->terminate) { | |
fbccf46c | 428 | enum fio_ddir ddir; |
2e1df07d JA |
429 | int ret2, full; |
430 | ||
431 | update_tv_cache(td); | |
432 | ||
433 | if (runtime_exceeded(td, &td->tv_cache)) { | |
434 | __update_tv_cache(td); | |
435 | if (runtime_exceeded(td, &td->tv_cache)) { | |
436 | td->terminate = 1; | |
437 | break; | |
438 | } | |
439 | } | |
440 | ||
9e684a49 DE |
441 | if (flow_threshold_exceeded(td)) |
442 | continue; | |
443 | ||
44cbc6da JA |
444 | if (!td->o.experimental_verify) { |
445 | io_u = __get_io_u(td); | |
446 | if (!io_u) | |
447 | break; | |
2e1df07d | 448 | |
44cbc6da JA |
449 | if (get_next_verify(td, io_u)) { |
450 | put_io_u(td, io_u); | |
451 | break; | |
452 | } | |
2e1df07d | 453 | |
44cbc6da JA |
454 | if (td_io_prep(td, io_u)) { |
455 | put_io_u(td, io_u); | |
456 | break; | |
457 | } | |
458 | } else { | |
100f49f1 JA |
459 | if (ddir_rw_sum(bytes_done) + td->o.rw_min_bs > verify_bytes) |
460 | break; | |
461 | ||
bcd5abfa JA |
462 | while ((io_u = get_io_u(td)) != NULL) { |
463 | /* | |
464 | * We are only interested in the places where | |
465 | * we wrote or trimmed IOs. Turn those into | |
466 | * reads for verification purposes. | |
467 | */ | |
468 | if (io_u->ddir == DDIR_READ) { | |
469 | /* | |
470 | * Pretend we issued it for rwmix | |
471 | * accounting | |
472 | */ | |
473 | td->io_issues[DDIR_READ]++; | |
474 | put_io_u(td, io_u); | |
475 | continue; | |
476 | } else if (io_u->ddir == DDIR_TRIM) { | |
477 | io_u->ddir = DDIR_READ; | |
478 | io_u->flags |= IO_U_F_TRIMMED; | |
479 | break; | |
480 | } else if (io_u->ddir == DDIR_WRITE) { | |
481 | io_u->ddir = DDIR_READ; | |
482 | break; | |
483 | } else { | |
484 | put_io_u(td, io_u); | |
485 | continue; | |
486 | } | |
487 | } | |
44cbc6da | 488 | |
bcd5abfa | 489 | if (!io_u) |
44cbc6da | 490 | break; |
2e1df07d JA |
491 | } |
492 | ||
493 | if (td->o.verify_async) | |
494 | io_u->end_io = verify_io_u_async; | |
495 | else | |
496 | io_u->end_io = verify_io_u; | |
497 | ||
fbccf46c JA |
498 | ddir = io_u->ddir; |
499 | ||
2e1df07d JA |
500 | ret = td_io_queue(td, io_u); |
501 | switch (ret) { | |
502 | case FIO_Q_COMPLETED: | |
503 | if (io_u->error) { | |
504 | ret = -io_u->error; | |
505 | clear_io_u(td, io_u); | |
506 | } else if (io_u->resid) { | |
507 | int bytes = io_u->xfer_buflen - io_u->resid; | |
508 | ||
509 | /* | |
510 | * zero read, fail | |
511 | */ | |
512 | if (!bytes) { | |
513 | td_verror(td, EIO, "full resid"); | |
514 | put_io_u(td, io_u); | |
515 | break; | |
516 | } | |
517 | ||
518 | io_u->xfer_buflen = io_u->resid; | |
519 | io_u->xfer_buf += bytes; | |
520 | io_u->offset += bytes; | |
521 | ||
522 | if (ddir_rw(io_u->ddir)) | |
523 | td->ts.short_io_u[io_u->ddir]++; | |
524 | ||
525 | f = io_u->file; | |
526 | if (io_u->offset == f->real_file_size) | |
527 | goto sync_done; | |
528 | ||
529 | requeue_io_u(td, &io_u); | |
530 | } else { | |
531 | sync_done: | |
100f49f1 | 532 | ret = io_u_sync_complete(td, io_u, bytes_done); |
2e1df07d JA |
533 | if (ret < 0) |
534 | break; | |
535 | } | |
536 | continue; | |
537 | case FIO_Q_QUEUED: | |
538 | break; | |
539 | case FIO_Q_BUSY: | |
540 | requeue_io_u(td, &io_u); | |
541 | ret2 = td_io_commit(td); | |
542 | if (ret2 < 0) | |
543 | ret = ret2; | |
544 | break; | |
545 | default: | |
546 | assert(ret < 0); | |
547 | td_verror(td, -ret, "td_io_queue"); | |
548 | break; | |
549 | } | |
550 | ||
fbccf46c | 551 | if (break_on_this_error(td, ddir, &ret)) |
2e1df07d JA |
552 | break; |
553 | ||
554 | /* | |
555 | * if we can queue more, do so. but check if there are | |
556 | * completed io_u's first. Note that we can get BUSY even | |
557 | * without IO queued, if the system is resource starved. | |
558 | */ | |
559 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); | |
560 | if (full || !td->o.iodepth_batch_complete) { | |
561 | min_events = min(td->o.iodepth_batch_complete, | |
562 | td->cur_depth); | |
8a74b56d JA |
563 | /* |
564 | * if the queue is full, we MUST reap at least 1 event | |
565 | */ | |
566 | if (full && !min_events) | |
2e1df07d JA |
567 | min_events = 1; |
568 | ||
569 | do { | |
570 | /* | |
571 | * Reap required number of io units, if any, | |
572 | * and do the verification on them through | |
573 | * the callback handler | |
574 | */ | |
100f49f1 | 575 | if (io_u_queued_complete(td, min_events, bytes_done) < 0) { |
2e1df07d JA |
576 | ret = -1; |
577 | break; | |
578 | } | |
579 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
580 | } | |
581 | if (ret < 0) | |
582 | break; | |
583 | } | |
584 | ||
585 | if (!td->error) { | |
586 | min_events = td->cur_depth; | |
587 | ||
588 | if (min_events) | |
589 | ret = io_u_queued_complete(td, min_events, NULL); | |
590 | } else | |
591 | cleanup_pending_aio(td); | |
592 | ||
593 | td_set_runstate(td, TD_RUNNING); | |
594 | ||
595 | dprint(FD_VERIFY, "exiting loop\n"); | |
596 | } | |
597 | ||
f7078f7b JA |
598 | static int io_bytes_exceeded(struct thread_data *td) |
599 | { | |
600 | unsigned long long bytes; | |
601 | ||
602 | if (td_rw(td)) | |
6eaf09d6 | 603 | bytes = td->this_io_bytes[DDIR_READ] + td->this_io_bytes[DDIR_WRITE]; |
f7078f7b | 604 | else if (td_write(td)) |
6eaf09d6 SL |
605 | bytes = td->this_io_bytes[DDIR_WRITE]; |
606 | else if (td_read(td)) | |
607 | bytes = td->this_io_bytes[DDIR_READ]; | |
f7078f7b | 608 | else |
6eaf09d6 | 609 | bytes = td->this_io_bytes[DDIR_TRIM]; |
f7078f7b JA |
610 | |
611 | return bytes >= td->o.size; | |
612 | } | |
613 | ||
2e1df07d JA |
614 | /* |
615 | * Main IO worker function. It retrieves io_u's to process and queues | |
616 | * and reaps them, checking for rate and errors along the way. | |
100f49f1 JA |
617 | * |
618 | * Returns number of bytes written and trimmed. | |
2e1df07d | 619 | */ |
100f49f1 | 620 | static uint64_t do_io(struct thread_data *td) |
2e1df07d | 621 | { |
100f49f1 | 622 | uint64_t bytes_done[DDIR_RWDIR_CNT] = { 0, 0, 0 }; |
2e1df07d JA |
623 | unsigned int i; |
624 | int ret = 0; | |
625 | ||
626 | if (in_ramp_time(td)) | |
627 | td_set_runstate(td, TD_RAMP); | |
628 | else | |
629 | td_set_runstate(td, TD_RUNNING); | |
630 | ||
f7078f7b | 631 | while ((td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || |
c04e4661 DE |
632 | (!flist_empty(&td->trim_list)) || !io_bytes_exceeded(td) || |
633 | td->o.time_based) { | |
2e1df07d | 634 | struct timeval comp_time; |
2e1df07d JA |
635 | int min_evts = 0; |
636 | struct io_u *io_u; | |
637 | int ret2, full; | |
638 | enum fio_ddir ddir; | |
639 | ||
7d7803fa | 640 | if (td->terminate || td->done) |
2e1df07d JA |
641 | break; |
642 | ||
643 | update_tv_cache(td); | |
644 | ||
645 | if (runtime_exceeded(td, &td->tv_cache)) { | |
646 | __update_tv_cache(td); | |
647 | if (runtime_exceeded(td, &td->tv_cache)) { | |
648 | td->terminate = 1; | |
649 | break; | |
650 | } | |
651 | } | |
652 | ||
9e684a49 DE |
653 | if (flow_threshold_exceeded(td)) |
654 | continue; | |
655 | ||
2e1df07d JA |
656 | io_u = get_io_u(td); |
657 | if (!io_u) | |
658 | break; | |
659 | ||
660 | ddir = io_u->ddir; | |
661 | ||
662 | /* | |
82af2a7c JA |
663 | * Add verification end_io handler if: |
664 | * - Asked to verify (!td_rw(td)) | |
665 | * - Or the io_u is from our verify list (mixed write/ver) | |
2e1df07d JA |
666 | */ |
667 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ && | |
82af2a7c | 668 | ((io_u->flags & IO_U_F_VER_LIST) || !td_rw(td))) { |
2e1df07d JA |
669 | if (td->o.verify_async) |
670 | io_u->end_io = verify_io_u_async; | |
671 | else | |
672 | io_u->end_io = verify_io_u; | |
673 | td_set_runstate(td, TD_VERIFYING); | |
674 | } else if (in_ramp_time(td)) | |
675 | td_set_runstate(td, TD_RAMP); | |
676 | else | |
677 | td_set_runstate(td, TD_RUNNING); | |
678 | ||
679 | ret = td_io_queue(td, io_u); | |
680 | switch (ret) { | |
681 | case FIO_Q_COMPLETED: | |
682 | if (io_u->error) { | |
683 | ret = -io_u->error; | |
684 | clear_io_u(td, io_u); | |
685 | } else if (io_u->resid) { | |
686 | int bytes = io_u->xfer_buflen - io_u->resid; | |
687 | struct fio_file *f = io_u->file; | |
688 | ||
689 | /* | |
690 | * zero read, fail | |
691 | */ | |
692 | if (!bytes) { | |
693 | td_verror(td, EIO, "full resid"); | |
694 | put_io_u(td, io_u); | |
695 | break; | |
696 | } | |
697 | ||
698 | io_u->xfer_buflen = io_u->resid; | |
699 | io_u->xfer_buf += bytes; | |
700 | io_u->offset += bytes; | |
701 | ||
702 | if (ddir_rw(io_u->ddir)) | |
703 | td->ts.short_io_u[io_u->ddir]++; | |
704 | ||
705 | if (io_u->offset == f->real_file_size) | |
706 | goto sync_done; | |
707 | ||
708 | requeue_io_u(td, &io_u); | |
709 | } else { | |
710 | sync_done: | |
6eaf09d6 SL |
711 | if (__should_check_rate(td, DDIR_READ) || |
712 | __should_check_rate(td, DDIR_WRITE) || | |
713 | __should_check_rate(td, DDIR_TRIM)) | |
2e1df07d JA |
714 | fio_gettime(&comp_time, NULL); |
715 | ||
716 | ret = io_u_sync_complete(td, io_u, bytes_done); | |
717 | if (ret < 0) | |
718 | break; | |
719 | } | |
720 | break; | |
721 | case FIO_Q_QUEUED: | |
722 | /* | |
723 | * if the engine doesn't have a commit hook, | |
724 | * the io_u is really queued. if it does have such | |
725 | * a hook, it has to call io_u_queued() itself. | |
726 | */ | |
727 | if (td->io_ops->commit == NULL) | |
728 | io_u_queued(td, io_u); | |
729 | break; | |
730 | case FIO_Q_BUSY: | |
731 | requeue_io_u(td, &io_u); | |
732 | ret2 = td_io_commit(td); | |
733 | if (ret2 < 0) | |
734 | ret = ret2; | |
735 | break; | |
736 | default: | |
737 | assert(ret < 0); | |
738 | put_io_u(td, io_u); | |
739 | break; | |
740 | } | |
741 | ||
742 | if (break_on_this_error(td, ddir, &ret)) | |
743 | break; | |
744 | ||
745 | /* | |
746 | * See if we need to complete some commands. Note that we | |
747 | * can get BUSY even without IO queued, if the system is | |
748 | * resource starved. | |
749 | */ | |
750 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); | |
751 | if (full || !td->o.iodepth_batch_complete) { | |
752 | min_evts = min(td->o.iodepth_batch_complete, | |
753 | td->cur_depth); | |
8a74b56d JA |
754 | /* |
755 | * if the queue is full, we MUST reap at least 1 event | |
756 | */ | |
757 | if (full && !min_evts) | |
2e1df07d JA |
758 | min_evts = 1; |
759 | ||
6eaf09d6 SL |
760 | if (__should_check_rate(td, DDIR_READ) || |
761 | __should_check_rate(td, DDIR_WRITE) || | |
762 | __should_check_rate(td, DDIR_TRIM)) | |
2e1df07d JA |
763 | fio_gettime(&comp_time, NULL); |
764 | ||
765 | do { | |
766 | ret = io_u_queued_complete(td, min_evts, bytes_done); | |
767 | if (ret < 0) | |
768 | break; | |
769 | ||
770 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
771 | } | |
772 | ||
773 | if (ret < 0) | |
774 | break; | |
d5abee06 | 775 | if (!ddir_rw_sum(bytes_done) && !(td->io_ops->flags & FIO_NOIO)) |
2e1df07d JA |
776 | continue; |
777 | ||
778 | if (!in_ramp_time(td) && should_check_rate(td, bytes_done)) { | |
779 | if (check_min_rate(td, &comp_time, bytes_done)) { | |
780 | if (exitall_on_terminate) | |
781 | fio_terminate_threads(td->groupid); | |
782 | td_verror(td, EIO, "check_min_rate"); | |
783 | break; | |
784 | } | |
785 | } | |
786 | ||
787 | if (td->o.thinktime) { | |
788 | unsigned long long b; | |
789 | ||
342f4be4 | 790 | b = ddir_rw_sum(td->io_blocks); |
2e1df07d JA |
791 | if (!(b % td->o.thinktime_blocks)) { |
792 | int left; | |
793 | ||
794 | if (td->o.thinktime_spin) | |
795 | usec_spin(td->o.thinktime_spin); | |
796 | ||
797 | left = td->o.thinktime - td->o.thinktime_spin; | |
798 | if (left) | |
799 | usec_sleep(td, left); | |
800 | } | |
801 | } | |
802 | } | |
803 | ||
804 | if (td->trim_entries) | |
805 | log_err("fio: %d trim entries leaked?\n", td->trim_entries); | |
806 | ||
807 | if (td->o.fill_device && td->error == ENOSPC) { | |
808 | td->error = 0; | |
809 | td->terminate = 1; | |
810 | } | |
811 | if (!td->error) { | |
812 | struct fio_file *f; | |
813 | ||
814 | i = td->cur_depth; | |
815 | if (i) { | |
5bd5f71a | 816 | ret = io_u_queued_complete(td, i, bytes_done); |
2e1df07d JA |
817 | if (td->o.fill_device && td->error == ENOSPC) |
818 | td->error = 0; | |
819 | } | |
820 | ||
821 | if (should_fsync(td) && td->o.end_fsync) { | |
822 | td_set_runstate(td, TD_FSYNCING); | |
823 | ||
824 | for_each_file(td, f, i) { | |
825 | if (!fio_file_open(f)) | |
826 | continue; | |
827 | fio_io_sync(td, f); | |
828 | } | |
829 | } | |
830 | } else | |
831 | cleanup_pending_aio(td); | |
832 | ||
833 | /* | |
834 | * stop job if we failed doing any IO | |
835 | */ | |
342f4be4 | 836 | if (!ddir_rw_sum(td->this_io_bytes)) |
2e1df07d | 837 | td->done = 1; |
100f49f1 JA |
838 | |
839 | return bytes_done[DDIR_WRITE] + bytes_done[DDIR_TRIM]; | |
2e1df07d JA |
840 | } |
841 | ||
842 | static void cleanup_io_u(struct thread_data *td) | |
843 | { | |
844 | struct flist_head *entry, *n; | |
845 | struct io_u *io_u; | |
846 | ||
847 | flist_for_each_safe(entry, n, &td->io_u_freelist) { | |
848 | io_u = flist_entry(entry, struct io_u, list); | |
849 | ||
850 | flist_del(&io_u->list); | |
c73ed246 JA |
851 | |
852 | if (td->io_ops->io_u_free) | |
853 | td->io_ops->io_u_free(td, io_u); | |
854 | ||
2e1df07d JA |
855 | fio_memfree(io_u, sizeof(*io_u)); |
856 | } | |
857 | ||
858 | free_io_mem(td); | |
859 | } | |
860 | ||
861 | static int init_io_u(struct thread_data *td) | |
862 | { | |
863 | struct io_u *io_u; | |
9c42684e | 864 | unsigned int max_bs, min_write; |
2e1df07d | 865 | int cl_align, i, max_units; |
59d8d0f5 | 866 | int data_xfer = 1; |
2e1df07d JA |
867 | char *p; |
868 | ||
869 | max_units = td->o.iodepth; | |
870 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); | |
6eaf09d6 | 871 | max_bs = max(td->o.max_bs[DDIR_TRIM], max_bs); |
9c42684e | 872 | min_write = td->o.min_bs[DDIR_WRITE]; |
2e1df07d JA |
873 | td->orig_buffer_size = (unsigned long long) max_bs |
874 | * (unsigned long long) max_units; | |
875 | ||
88045e04 | 876 | if ((td->io_ops->flags & FIO_NOIO) || !(td_read(td) || td_write(td))) |
59d8d0f5 JA |
877 | data_xfer = 0; |
878 | ||
2e1df07d JA |
879 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { |
880 | unsigned long bs; | |
881 | ||
882 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; | |
883 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); | |
884 | } | |
885 | ||
886 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { | |
887 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
888 | return 1; | |
889 | } | |
890 | ||
59d8d0f5 | 891 | if (data_xfer && allocate_io_mem(td)) |
2e1df07d JA |
892 | return 1; |
893 | ||
894 | if (td->o.odirect || td->o.mem_align || | |
895 | (td->io_ops->flags & FIO_RAWIO)) | |
896 | p = PAGE_ALIGN(td->orig_buffer) + td->o.mem_align; | |
897 | else | |
898 | p = td->orig_buffer; | |
899 | ||
900 | cl_align = os_cache_line_size(); | |
901 | ||
902 | for (i = 0; i < max_units; i++) { | |
903 | void *ptr; | |
904 | ||
905 | if (td->terminate) | |
906 | return 1; | |
907 | ||
908 | ptr = fio_memalign(cl_align, sizeof(*io_u)); | |
909 | if (!ptr) { | |
910 | log_err("fio: unable to allocate aligned memory\n"); | |
911 | break; | |
912 | } | |
913 | ||
914 | io_u = ptr; | |
915 | memset(io_u, 0, sizeof(*io_u)); | |
916 | INIT_FLIST_HEAD(&io_u->list); | |
917 | dprint(FD_MEM, "io_u alloc %p, index %u\n", io_u, i); | |
918 | ||
59d8d0f5 | 919 | if (data_xfer) { |
2e1df07d JA |
920 | io_u->buf = p; |
921 | dprint(FD_MEM, "io_u %p, mem %p\n", io_u, io_u->buf); | |
922 | ||
923 | if (td_write(td)) | |
9c42684e | 924 | io_u_fill_buffer(td, io_u, min_write, max_bs); |
2e1df07d JA |
925 | if (td_write(td) && td->o.verify_pattern_bytes) { |
926 | /* | |
927 | * Fill the buffer with the pattern if we are | |
928 | * going to be doing writes. | |
929 | */ | |
930 | fill_pattern(td, io_u->buf, max_bs, io_u, 0, 0); | |
931 | } | |
932 | } | |
933 | ||
934 | io_u->index = i; | |
935 | io_u->flags = IO_U_F_FREE; | |
936 | flist_add(&io_u->list, &td->io_u_freelist); | |
c73ed246 JA |
937 | |
938 | if (td->io_ops->io_u_init) { | |
939 | int ret = td->io_ops->io_u_init(td, io_u); | |
940 | ||
941 | if (ret) { | |
942 | log_err("fio: failed to init engine data: %d\n", ret); | |
943 | return 1; | |
944 | } | |
945 | } | |
946 | ||
2e1df07d JA |
947 | p += max_bs; |
948 | } | |
949 | ||
950 | return 0; | |
951 | } | |
952 | ||
953 | static int switch_ioscheduler(struct thread_data *td) | |
954 | { | |
955 | char tmp[256], tmp2[128]; | |
956 | FILE *f; | |
957 | int ret; | |
958 | ||
959 | if (td->io_ops->flags & FIO_DISKLESSIO) | |
960 | return 0; | |
961 | ||
962 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); | |
963 | ||
964 | f = fopen(tmp, "r+"); | |
965 | if (!f) { | |
966 | if (errno == ENOENT) { | |
967 | log_err("fio: os or kernel doesn't support IO scheduler" | |
968 | " switching\n"); | |
969 | return 0; | |
970 | } | |
971 | td_verror(td, errno, "fopen iosched"); | |
972 | return 1; | |
973 | } | |
974 | ||
975 | /* | |
976 | * Set io scheduler. | |
977 | */ | |
978 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); | |
979 | if (ferror(f) || ret != 1) { | |
980 | td_verror(td, errno, "fwrite"); | |
981 | fclose(f); | |
982 | return 1; | |
983 | } | |
984 | ||
985 | rewind(f); | |
986 | ||
987 | /* | |
988 | * Read back and check that the selected scheduler is now the default. | |
989 | */ | |
990 | ret = fread(tmp, 1, sizeof(tmp), f); | |
991 | if (ferror(f) || ret < 0) { | |
992 | td_verror(td, errno, "fread"); | |
993 | fclose(f); | |
994 | return 1; | |
995 | } | |
996 | ||
997 | sprintf(tmp2, "[%s]", td->o.ioscheduler); | |
998 | if (!strstr(tmp, tmp2)) { | |
999 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); | |
1000 | td_verror(td, EINVAL, "iosched_switch"); | |
1001 | fclose(f); | |
1002 | return 1; | |
1003 | } | |
1004 | ||
1005 | fclose(f); | |
1006 | return 0; | |
1007 | } | |
1008 | ||
1009 | static int keep_running(struct thread_data *td) | |
1010 | { | |
2e1df07d JA |
1011 | if (td->done) |
1012 | return 0; | |
1013 | if (td->o.time_based) | |
1014 | return 1; | |
1015 | if (td->o.loops) { | |
1016 | td->o.loops--; | |
1017 | return 1; | |
1018 | } | |
1019 | ||
5bd5f71a JA |
1020 | if (ddir_rw_sum(td->io_bytes) < td->o.size) { |
1021 | uint64_t diff; | |
1022 | ||
1023 | /* | |
1024 | * If the difference is less than the minimum IO size, we | |
1025 | * are done. | |
1026 | */ | |
1027 | diff = td->o.size - ddir_rw_sum(td->io_bytes); | |
1028 | if (diff < td->o.rw_min_bs) | |
1029 | return 0; | |
1030 | ||
2e1df07d | 1031 | return 1; |
5bd5f71a | 1032 | } |
2e1df07d JA |
1033 | |
1034 | return 0; | |
1035 | } | |
1036 | ||
1037 | static int exec_string(const char *string) | |
1038 | { | |
1039 | int ret, newlen = strlen(string) + 1 + 8; | |
1040 | char *str; | |
1041 | ||
1042 | str = malloc(newlen); | |
1043 | sprintf(str, "sh -c %s", string); | |
1044 | ||
1045 | ret = system(str); | |
1046 | if (ret == -1) | |
1047 | log_err("fio: exec of cmd <%s> failed\n", str); | |
1048 | ||
1049 | free(str); | |
1050 | return ret; | |
1051 | } | |
1052 | ||
1053 | /* | |
1054 | * Entry point for the thread based jobs. The process based jobs end up | |
1055 | * here as well, after a little setup. | |
1056 | */ | |
1057 | static void *thread_main(void *data) | |
1058 | { | |
1059 | unsigned long long elapsed; | |
1060 | struct thread_data *td = data; | |
1061 | pthread_condattr_t attr; | |
1062 | int clear_state; | |
1063 | ||
1064 | if (!td->o.use_thread) { | |
1065 | setsid(); | |
1066 | td->pid = getpid(); | |
1067 | } else | |
1068 | td->pid = gettid(); | |
1069 | ||
5d879392 JA |
1070 | fio_local_clock_init(td->o.use_thread); |
1071 | ||
2e1df07d JA |
1072 | dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); |
1073 | ||
1074 | INIT_FLIST_HEAD(&td->io_u_freelist); | |
1075 | INIT_FLIST_HEAD(&td->io_u_busylist); | |
1076 | INIT_FLIST_HEAD(&td->io_u_requeues); | |
1077 | INIT_FLIST_HEAD(&td->io_log_list); | |
1078 | INIT_FLIST_HEAD(&td->io_hist_list); | |
1079 | INIT_FLIST_HEAD(&td->verify_list); | |
1080 | INIT_FLIST_HEAD(&td->trim_list); | |
1ae83d45 | 1081 | INIT_FLIST_HEAD(&td->next_rand_list); |
2e1df07d JA |
1082 | pthread_mutex_init(&td->io_u_lock, NULL); |
1083 | td->io_hist_tree = RB_ROOT; | |
1084 | ||
1085 | pthread_condattr_init(&attr); | |
1086 | pthread_cond_init(&td->verify_cond, &attr); | |
1087 | pthread_cond_init(&td->free_cond, &attr); | |
1088 | ||
1089 | td_set_runstate(td, TD_INITIALIZED); | |
1090 | dprint(FD_MUTEX, "up startup_mutex\n"); | |
1091 | fio_mutex_up(startup_mutex); | |
1092 | dprint(FD_MUTEX, "wait on td->mutex\n"); | |
1093 | fio_mutex_down(td->mutex); | |
1094 | dprint(FD_MUTEX, "done waiting on td->mutex\n"); | |
1095 | ||
1096 | /* | |
1097 | * the ->mutex mutex is now no longer used, close it to avoid | |
1098 | * eating a file descriptor | |
1099 | */ | |
1100 | fio_mutex_remove(td->mutex); | |
1101 | ||
1102 | /* | |
1103 | * A new gid requires privilege, so we need to do this before setting | |
1104 | * the uid. | |
1105 | */ | |
1106 | if (td->o.gid != -1U && setgid(td->o.gid)) { | |
1107 | td_verror(td, errno, "setgid"); | |
1108 | goto err; | |
1109 | } | |
1110 | if (td->o.uid != -1U && setuid(td->o.uid)) { | |
1111 | td_verror(td, errno, "setuid"); | |
1112 | goto err; | |
1113 | } | |
1114 | ||
1115 | /* | |
1116 | * If we have a gettimeofday() thread, make sure we exclude that | |
1117 | * thread from this job | |
1118 | */ | |
1119 | if (td->o.gtod_cpu) | |
1120 | fio_cpu_clear(&td->o.cpumask, td->o.gtod_cpu); | |
1121 | ||
1122 | /* | |
1123 | * Set affinity first, in case it has an impact on the memory | |
1124 | * allocations. | |
1125 | */ | |
1126 | if (td->o.cpumask_set && fio_setaffinity(td->pid, td->o.cpumask) == -1) { | |
1127 | td_verror(td, errno, "cpu_set_affinity"); | |
1128 | goto err; | |
1129 | } | |
1130 | ||
67bf9823 | 1131 | #ifdef CONFIG_LIBNUMA |
d0b937ed YR |
1132 | /* numa node setup */ |
1133 | if (td->o.numa_cpumask_set || td->o.numa_memmask_set) { | |
1134 | int ret; | |
1135 | ||
1136 | if (numa_available() < 0) { | |
1137 | td_verror(td, errno, "Does not support NUMA API\n"); | |
1138 | goto err; | |
1139 | } | |
1140 | ||
1141 | if (td->o.numa_cpumask_set) { | |
1142 | ret = numa_run_on_node_mask(td->o.numa_cpunodesmask); | |
1143 | if (ret == -1) { | |
1144 | td_verror(td, errno, \ | |
1145 | "numa_run_on_node_mask failed\n"); | |
1146 | goto err; | |
1147 | } | |
1148 | } | |
1149 | ||
1150 | if (td->o.numa_memmask_set) { | |
1151 | ||
1152 | switch (td->o.numa_mem_mode) { | |
1153 | case MPOL_INTERLEAVE: | |
1154 | numa_set_interleave_mask(td->o.numa_memnodesmask); | |
1155 | break; | |
1156 | case MPOL_BIND: | |
1157 | numa_set_membind(td->o.numa_memnodesmask); | |
1158 | break; | |
1159 | case MPOL_LOCAL: | |
1160 | numa_set_localalloc(); | |
1161 | break; | |
1162 | case MPOL_PREFERRED: | |
1163 | numa_set_preferred(td->o.numa_mem_prefer_node); | |
1164 | break; | |
1165 | case MPOL_DEFAULT: | |
1166 | default: | |
1167 | break; | |
1168 | } | |
1169 | ||
1170 | } | |
1171 | } | |
1172 | #endif | |
1173 | ||
2e1df07d JA |
1174 | /* |
1175 | * May alter parameters that init_io_u() will use, so we need to | |
1176 | * do this first. | |
1177 | */ | |
1178 | if (init_iolog(td)) | |
1179 | goto err; | |
1180 | ||
1181 | if (init_io_u(td)) | |
1182 | goto err; | |
1183 | ||
1184 | if (td->o.verify_async && verify_async_init(td)) | |
1185 | goto err; | |
1186 | ||
1187 | if (td->ioprio_set) { | |
1188 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { | |
1189 | td_verror(td, errno, "ioprio_set"); | |
1190 | goto err; | |
1191 | } | |
1192 | } | |
1193 | ||
5d89ff79 | 1194 | if (td->o.cgroup && cgroup_setup(td, cgroup_list, &cgroup_mnt)) |
2e1df07d JA |
1195 | goto err; |
1196 | ||
649c10c5 BC |
1197 | errno = 0; |
1198 | if (nice(td->o.nice) == -1 && errno != 0) { | |
2e1df07d JA |
1199 | td_verror(td, errno, "nice"); |
1200 | goto err; | |
1201 | } | |
1202 | ||
1203 | if (td->o.ioscheduler && switch_ioscheduler(td)) | |
1204 | goto err; | |
1205 | ||
1206 | if (!td->o.create_serialize && setup_files(td)) | |
1207 | goto err; | |
1208 | ||
1209 | if (td_io_init(td)) | |
1210 | goto err; | |
1211 | ||
1212 | if (init_random_map(td)) | |
1213 | goto err; | |
1214 | ||
1215 | if (td->o.exec_prerun) { | |
1216 | if (exec_string(td->o.exec_prerun)) | |
1217 | goto err; | |
1218 | } | |
1219 | ||
1220 | if (td->o.pre_read) { | |
1221 | if (pre_read_files(td) < 0) | |
1222 | goto err; | |
1223 | } | |
1224 | ||
1225 | fio_gettime(&td->epoch, NULL); | |
44404c5a | 1226 | fio_getrusage(&td->ru_start); |
2e1df07d JA |
1227 | clear_state = 0; |
1228 | while (keep_running(td)) { | |
100f49f1 JA |
1229 | uint64_t verify_bytes; |
1230 | ||
2e1df07d JA |
1231 | fio_gettime(&td->start, NULL); |
1232 | memcpy(&td->bw_sample_time, &td->start, sizeof(td->start)); | |
1233 | memcpy(&td->iops_sample_time, &td->start, sizeof(td->start)); | |
1234 | memcpy(&td->tv_cache, &td->start, sizeof(td->start)); | |
1235 | ||
6eaf09d6 SL |
1236 | if (td->o.ratemin[DDIR_READ] || td->o.ratemin[DDIR_WRITE] || |
1237 | td->o.ratemin[DDIR_TRIM]) { | |
1238 | memcpy(&td->lastrate[DDIR_READ], &td->bw_sample_time, | |
2e1df07d | 1239 | sizeof(td->bw_sample_time)); |
6eaf09d6 SL |
1240 | memcpy(&td->lastrate[DDIR_WRITE], &td->bw_sample_time, |
1241 | sizeof(td->bw_sample_time)); | |
1242 | memcpy(&td->lastrate[DDIR_TRIM], &td->bw_sample_time, | |
2e1df07d JA |
1243 | sizeof(td->bw_sample_time)); |
1244 | } | |
1245 | ||
1246 | if (clear_state) | |
1247 | clear_io_state(td); | |
1248 | ||
1249 | prune_io_piece_log(td); | |
1250 | ||
100f49f1 | 1251 | verify_bytes = do_io(td); |
2e1df07d JA |
1252 | |
1253 | clear_state = 1; | |
1254 | ||
1255 | if (td_read(td) && td->io_bytes[DDIR_READ]) { | |
1256 | elapsed = utime_since_now(&td->start); | |
1257 | td->ts.runtime[DDIR_READ] += elapsed; | |
1258 | } | |
1259 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { | |
1260 | elapsed = utime_since_now(&td->start); | |
1261 | td->ts.runtime[DDIR_WRITE] += elapsed; | |
1262 | } | |
6eaf09d6 SL |
1263 | if (td_trim(td) && td->io_bytes[DDIR_TRIM]) { |
1264 | elapsed = utime_since_now(&td->start); | |
1265 | td->ts.runtime[DDIR_TRIM] += elapsed; | |
1266 | } | |
2e1df07d JA |
1267 | |
1268 | if (td->error || td->terminate) | |
1269 | break; | |
1270 | ||
1271 | if (!td->o.do_verify || | |
1272 | td->o.verify == VERIFY_NONE || | |
1273 | (td->io_ops->flags & FIO_UNIDIR)) | |
1274 | continue; | |
1275 | ||
1276 | clear_io_state(td); | |
1277 | ||
1278 | fio_gettime(&td->start, NULL); | |
1279 | ||
100f49f1 | 1280 | do_verify(td, verify_bytes); |
2e1df07d JA |
1281 | |
1282 | td->ts.runtime[DDIR_READ] += utime_since_now(&td->start); | |
1283 | ||
1284 | if (td->error || td->terminate) | |
1285 | break; | |
1286 | } | |
1287 | ||
1288 | update_rusage_stat(td); | |
6eaf09d6 SL |
1289 | td->ts.runtime[DDIR_READ] = (td->ts.runtime[DDIR_READ] + 999) / 1000; |
1290 | td->ts.runtime[DDIR_WRITE] = (td->ts.runtime[DDIR_WRITE] + 999) / 1000; | |
1291 | td->ts.runtime[DDIR_TRIM] = (td->ts.runtime[DDIR_TRIM] + 999) / 1000; | |
2e1df07d | 1292 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
6eaf09d6 SL |
1293 | td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ]; |
1294 | td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE]; | |
1295 | td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM]; | |
2e1df07d JA |
1296 | |
1297 | fio_mutex_down(writeout_mutex); | |
1298 | if (td->bw_log) { | |
1299 | if (td->o.bw_log_file) { | |
1300 | finish_log_named(td, td->bw_log, | |
1301 | td->o.bw_log_file, "bw"); | |
1302 | } else | |
1303 | finish_log(td, td->bw_log, "bw"); | |
1304 | } | |
1305 | if (td->lat_log) { | |
1306 | if (td->o.lat_log_file) { | |
1307 | finish_log_named(td, td->lat_log, | |
1308 | td->o.lat_log_file, "lat"); | |
1309 | } else | |
1310 | finish_log(td, td->lat_log, "lat"); | |
1311 | } | |
1312 | if (td->slat_log) { | |
1313 | if (td->o.lat_log_file) { | |
1314 | finish_log_named(td, td->slat_log, | |
1315 | td->o.lat_log_file, "slat"); | |
1316 | } else | |
1317 | finish_log(td, td->slat_log, "slat"); | |
1318 | } | |
1319 | if (td->clat_log) { | |
1320 | if (td->o.lat_log_file) { | |
1321 | finish_log_named(td, td->clat_log, | |
1322 | td->o.lat_log_file, "clat"); | |
1323 | } else | |
1324 | finish_log(td, td->clat_log, "clat"); | |
1325 | } | |
1326 | if (td->iops_log) { | |
1327 | if (td->o.iops_log_file) { | |
1328 | finish_log_named(td, td->iops_log, | |
1329 | td->o.iops_log_file, "iops"); | |
1330 | } else | |
1331 | finish_log(td, td->iops_log, "iops"); | |
1332 | } | |
1333 | ||
1334 | fio_mutex_up(writeout_mutex); | |
1335 | if (td->o.exec_postrun) | |
1336 | exec_string(td->o.exec_postrun); | |
1337 | ||
1338 | if (exitall_on_terminate) | |
1339 | fio_terminate_threads(td->groupid); | |
1340 | ||
1341 | err: | |
1342 | if (td->error) | |
1343 | log_info("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, | |
1344 | td->verror); | |
1345 | ||
1346 | if (td->o.verify_async) | |
1347 | verify_async_exit(td); | |
1348 | ||
1349 | close_and_free_files(td); | |
2e1df07d | 1350 | cleanup_io_u(td); |
32dbca2c | 1351 | close_ioengine(td); |
2e1df07d JA |
1352 | cgroup_shutdown(td, &cgroup_mnt); |
1353 | ||
1354 | if (td->o.cpumask_set) { | |
1355 | int ret = fio_cpuset_exit(&td->o.cpumask); | |
1356 | ||
1357 | td_verror(td, ret, "fio_cpuset_exit"); | |
1358 | } | |
1359 | ||
1360 | /* | |
1361 | * do this very late, it will log file closing as well | |
1362 | */ | |
1363 | if (td->o.write_iolog_file) | |
1364 | write_iolog_close(td); | |
1365 | ||
1366 | td_set_runstate(td, TD_EXITED); | |
e43606c2 | 1367 | return (void *) (uintptr_t) td->error; |
2e1df07d JA |
1368 | } |
1369 | ||
1370 | ||
1371 | /* | |
1372 | * We cannot pass the td data into a forked process, so attach the td and | |
1373 | * pass it to the thread worker. | |
1374 | */ | |
1375 | static int fork_main(int shmid, int offset) | |
1376 | { | |
1377 | struct thread_data *td; | |
1378 | void *data, *ret; | |
1379 | ||
1380 | #ifndef __hpux | |
1381 | data = shmat(shmid, NULL, 0); | |
1382 | if (data == (void *) -1) { | |
1383 | int __err = errno; | |
1384 | ||
1385 | perror("shmat"); | |
1386 | return __err; | |
1387 | } | |
1388 | #else | |
1389 | /* | |
1390 | * HP-UX inherits shm mappings? | |
1391 | */ | |
1392 | data = threads; | |
1393 | #endif | |
1394 | ||
1395 | td = data + offset * sizeof(struct thread_data); | |
1396 | ret = thread_main(td); | |
1397 | shmdt(data); | |
e43606c2 | 1398 | return (int) (uintptr_t) ret; |
2e1df07d JA |
1399 | } |
1400 | ||
1401 | /* | |
1402 | * Run over the job map and reap the threads that have exited, if any. | |
1403 | */ | |
1404 | static void reap_threads(unsigned int *nr_running, unsigned int *t_rate, | |
1405 | unsigned int *m_rate) | |
1406 | { | |
1407 | struct thread_data *td; | |
1408 | unsigned int cputhreads, realthreads, pending; | |
1409 | int i, status, ret; | |
1410 | ||
1411 | /* | |
1412 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1413 | */ | |
1414 | realthreads = pending = cputhreads = 0; | |
1415 | for_each_td(td, i) { | |
1416 | int flags = 0; | |
1417 | ||
1418 | /* | |
1419 | * ->io_ops is NULL for a thread that has closed its | |
1420 | * io engine | |
1421 | */ | |
1422 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) | |
1423 | cputhreads++; | |
1424 | else | |
1425 | realthreads++; | |
1426 | ||
1427 | if (!td->pid) { | |
1428 | pending++; | |
1429 | continue; | |
1430 | } | |
1431 | if (td->runstate == TD_REAPED) | |
1432 | continue; | |
1433 | if (td->o.use_thread) { | |
1434 | if (td->runstate == TD_EXITED) { | |
1435 | td_set_runstate(td, TD_REAPED); | |
1436 | goto reaped; | |
1437 | } | |
1438 | continue; | |
1439 | } | |
1440 | ||
1441 | flags = WNOHANG; | |
1442 | if (td->runstate == TD_EXITED) | |
1443 | flags = 0; | |
1444 | ||
1445 | /* | |
1446 | * check if someone quit or got killed in an unusual way | |
1447 | */ | |
1448 | ret = waitpid(td->pid, &status, flags); | |
1449 | if (ret < 0) { | |
1450 | if (errno == ECHILD) { | |
1451 | log_err("fio: pid=%d disappeared %d\n", | |
1452 | (int) td->pid, td->runstate); | |
a5e371a6 | 1453 | td->sig = ECHILD; |
2e1df07d JA |
1454 | td_set_runstate(td, TD_REAPED); |
1455 | goto reaped; | |
1456 | } | |
1457 | perror("waitpid"); | |
1458 | } else if (ret == td->pid) { | |
1459 | if (WIFSIGNALED(status)) { | |
1460 | int sig = WTERMSIG(status); | |
1461 | ||
36d80bc7 | 1462 | if (sig != SIGTERM && sig != SIGUSR2) |
2e1df07d JA |
1463 | log_err("fio: pid=%d, got signal=%d\n", |
1464 | (int) td->pid, sig); | |
a5e371a6 | 1465 | td->sig = sig; |
2e1df07d JA |
1466 | td_set_runstate(td, TD_REAPED); |
1467 | goto reaped; | |
1468 | } | |
1469 | if (WIFEXITED(status)) { | |
1470 | if (WEXITSTATUS(status) && !td->error) | |
1471 | td->error = WEXITSTATUS(status); | |
1472 | ||
1473 | td_set_runstate(td, TD_REAPED); | |
1474 | goto reaped; | |
1475 | } | |
1476 | } | |
1477 | ||
1478 | /* | |
1479 | * thread is not dead, continue | |
1480 | */ | |
1481 | pending++; | |
1482 | continue; | |
1483 | reaped: | |
1484 | (*nr_running)--; | |
342f4be4 JA |
1485 | (*m_rate) -= ddir_rw_sum(td->o.ratemin); |
1486 | (*t_rate) -= ddir_rw_sum(td->o.rate); | |
2e1df07d JA |
1487 | if (!td->pid) |
1488 | pending--; | |
1489 | ||
1490 | if (td->error) | |
1491 | exit_value++; | |
1492 | ||
1493 | done_secs += mtime_since_now(&td->epoch) / 1000; | |
1494 | } | |
1495 | ||
1496 | if (*nr_running == cputhreads && !pending && realthreads) | |
1497 | fio_terminate_threads(TERMINATE_ALL); | |
1498 | } | |
1499 | ||
2e1df07d JA |
1500 | /* |
1501 | * Main function for kicking off and reaping jobs, as needed. | |
1502 | */ | |
1503 | static void run_threads(void) | |
1504 | { | |
1505 | struct thread_data *td; | |
1506 | unsigned long spent; | |
1507 | unsigned int i, todo, nr_running, m_rate, t_rate, nr_started; | |
1508 | ||
1509 | if (fio_pin_memory()) | |
1510 | return; | |
1511 | ||
1512 | if (fio_gtod_offload && fio_start_gtod_thread()) | |
1513 | return; | |
f2a2ce0e HL |
1514 | |
1515 | fio_idle_prof_init(); | |
2e1df07d JA |
1516 | |
1517 | set_sig_handlers(); | |
1518 | ||
f3afa57e | 1519 | if (output_format == FIO_OUTPUT_NORMAL) { |
2e1df07d JA |
1520 | log_info("Starting "); |
1521 | if (nr_thread) | |
1522 | log_info("%d thread%s", nr_thread, | |
1523 | nr_thread > 1 ? "s" : ""); | |
1524 | if (nr_process) { | |
1525 | if (nr_thread) | |
1526 | log_info(" and "); | |
1527 | log_info("%d process%s", nr_process, | |
1528 | nr_process > 1 ? "es" : ""); | |
1529 | } | |
1530 | log_info("\n"); | |
1531 | fflush(stdout); | |
1532 | } | |
1533 | ||
1534 | todo = thread_number; | |
1535 | nr_running = 0; | |
1536 | nr_started = 0; | |
1537 | m_rate = t_rate = 0; | |
1538 | ||
1539 | for_each_td(td, i) { | |
1540 | print_status_init(td->thread_number - 1); | |
1541 | ||
1542 | if (!td->o.create_serialize) | |
1543 | continue; | |
1544 | ||
1545 | /* | |
1546 | * do file setup here so it happens sequentially, | |
1547 | * we don't want X number of threads getting their | |
1548 | * client data interspersed on disk | |
1549 | */ | |
1550 | if (setup_files(td)) { | |
1551 | exit_value++; | |
1552 | if (td->error) | |
1553 | log_err("fio: pid=%d, err=%d/%s\n", | |
1554 | (int) td->pid, td->error, td->verror); | |
1555 | td_set_runstate(td, TD_REAPED); | |
1556 | todo--; | |
1557 | } else { | |
1558 | struct fio_file *f; | |
1559 | unsigned int j; | |
1560 | ||
1561 | /* | |
1562 | * for sharing to work, each job must always open | |
1563 | * its own files. so close them, if we opened them | |
1564 | * for creation | |
1565 | */ | |
1566 | for_each_file(td, f, j) { | |
1567 | if (fio_file_open(f)) | |
1568 | td_io_close_file(td, f); | |
1569 | } | |
1570 | } | |
1571 | } | |
1572 | ||
f2a2ce0e HL |
1573 | /* start idle threads before io threads start to run */ |
1574 | fio_idle_prof_start(); | |
1575 | ||
2e1df07d JA |
1576 | set_genesis_time(); |
1577 | ||
1578 | while (todo) { | |
1579 | struct thread_data *map[REAL_MAX_JOBS]; | |
1580 | struct timeval this_start; | |
1581 | int this_jobs = 0, left; | |
1582 | ||
1583 | /* | |
1584 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1585 | */ | |
1586 | for_each_td(td, i) { | |
1587 | if (td->runstate != TD_NOT_CREATED) | |
1588 | continue; | |
1589 | ||
1590 | /* | |
1591 | * never got a chance to start, killed by other | |
1592 | * thread for some reason | |
1593 | */ | |
1594 | if (td->terminate) { | |
1595 | todo--; | |
1596 | continue; | |
1597 | } | |
1598 | ||
1599 | if (td->o.start_delay) { | |
1600 | spent = mtime_since_genesis(); | |
1601 | ||
1602 | if (td->o.start_delay * 1000 > spent) | |
1603 | continue; | |
1604 | } | |
1605 | ||
1606 | if (td->o.stonewall && (nr_started || nr_running)) { | |
1607 | dprint(FD_PROCESS, "%s: stonewall wait\n", | |
1608 | td->o.name); | |
1609 | break; | |
1610 | } | |
1611 | ||
1612 | init_disk_util(td); | |
1613 | ||
1614 | /* | |
1615 | * Set state to created. Thread will transition | |
1616 | * to TD_INITIALIZED when it's done setting up. | |
1617 | */ | |
1618 | td_set_runstate(td, TD_CREATED); | |
1619 | map[this_jobs++] = td; | |
1620 | nr_started++; | |
1621 | ||
1622 | if (td->o.use_thread) { | |
1623 | int ret; | |
1624 | ||
1625 | dprint(FD_PROCESS, "will pthread_create\n"); | |
1626 | ret = pthread_create(&td->thread, NULL, | |
1627 | thread_main, td); | |
1628 | if (ret) { | |
1629 | log_err("pthread_create: %s\n", | |
1630 | strerror(ret)); | |
1631 | nr_started--; | |
1632 | break; | |
1633 | } | |
1634 | ret = pthread_detach(td->thread); | |
1635 | if (ret) | |
1636 | log_err("pthread_detach: %s", | |
1637 | strerror(ret)); | |
1638 | } else { | |
1639 | pid_t pid; | |
1640 | dprint(FD_PROCESS, "will fork\n"); | |
1641 | pid = fork(); | |
1642 | if (!pid) { | |
1643 | int ret = fork_main(shm_id, i); | |
1644 | ||
1645 | _exit(ret); | |
1646 | } else if (i == fio_debug_jobno) | |
1647 | *fio_debug_jobp = pid; | |
1648 | } | |
1649 | dprint(FD_MUTEX, "wait on startup_mutex\n"); | |
1650 | if (fio_mutex_down_timeout(startup_mutex, 10)) { | |
1651 | log_err("fio: job startup hung? exiting.\n"); | |
1652 | fio_terminate_threads(TERMINATE_ALL); | |
1653 | fio_abort = 1; | |
1654 | nr_started--; | |
1655 | break; | |
1656 | } | |
1657 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); | |
1658 | } | |
1659 | ||
1660 | /* | |
1661 | * Wait for the started threads to transition to | |
1662 | * TD_INITIALIZED. | |
1663 | */ | |
1664 | fio_gettime(&this_start, NULL); | |
1665 | left = this_jobs; | |
1666 | while (left && !fio_abort) { | |
1667 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) | |
1668 | break; | |
1669 | ||
1670 | usleep(100000); | |
1671 | ||
1672 | for (i = 0; i < this_jobs; i++) { | |
1673 | td = map[i]; | |
1674 | if (!td) | |
1675 | continue; | |
1676 | if (td->runstate == TD_INITIALIZED) { | |
1677 | map[i] = NULL; | |
1678 | left--; | |
1679 | } else if (td->runstate >= TD_EXITED) { | |
1680 | map[i] = NULL; | |
1681 | left--; | |
1682 | todo--; | |
1683 | nr_running++; /* work-around... */ | |
1684 | } | |
1685 | } | |
1686 | } | |
1687 | ||
1688 | if (left) { | |
4e87c37a JA |
1689 | log_err("fio: %d job%s failed to start\n", left, |
1690 | left > 1 ? "s" : ""); | |
2e1df07d JA |
1691 | for (i = 0; i < this_jobs; i++) { |
1692 | td = map[i]; | |
1693 | if (!td) | |
1694 | continue; | |
1695 | kill(td->pid, SIGTERM); | |
1696 | } | |
1697 | break; | |
1698 | } | |
1699 | ||
1700 | /* | |
1701 | * start created threads (TD_INITIALIZED -> TD_RUNNING). | |
1702 | */ | |
1703 | for_each_td(td, i) { | |
1704 | if (td->runstate != TD_INITIALIZED) | |
1705 | continue; | |
1706 | ||
1707 | if (in_ramp_time(td)) | |
1708 | td_set_runstate(td, TD_RAMP); | |
1709 | else | |
1710 | td_set_runstate(td, TD_RUNNING); | |
1711 | nr_running++; | |
1712 | nr_started--; | |
342f4be4 JA |
1713 | m_rate += ddir_rw_sum(td->o.ratemin); |
1714 | t_rate += ddir_rw_sum(td->o.rate); | |
2e1df07d JA |
1715 | todo--; |
1716 | fio_mutex_up(td->mutex); | |
1717 | } | |
1718 | ||
1719 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1720 | ||
1721 | if (todo) { | |
1722 | if (is_backend) | |
1723 | fio_server_idle_loop(); | |
1724 | else | |
1725 | usleep(100000); | |
1726 | } | |
1727 | } | |
1728 | ||
1729 | while (nr_running) { | |
1730 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1731 | ||
1732 | if (is_backend) | |
1733 | fio_server_idle_loop(); | |
1734 | else | |
1735 | usleep(10000); | |
1736 | } | |
1737 | ||
f2a2ce0e HL |
1738 | fio_idle_prof_stop(); |
1739 | ||
2e1df07d JA |
1740 | update_io_ticks(); |
1741 | fio_unpin_memory(); | |
1742 | } | |
1743 | ||
9ec7779f JA |
1744 | void wait_for_disk_thread_exit(void) |
1745 | { | |
1746 | fio_mutex_down(disk_thread_mutex); | |
1747 | } | |
1748 | ||
27357187 JA |
1749 | static void free_disk_util(void) |
1750 | { | |
1751 | disk_util_start_exit(); | |
1752 | wait_for_disk_thread_exit(); | |
1753 | disk_util_prune_entries(); | |
1754 | } | |
1755 | ||
2e1df07d JA |
1756 | static void *disk_thread_main(void *data) |
1757 | { | |
9ec7779f JA |
1758 | int ret = 0; |
1759 | ||
2e1df07d JA |
1760 | fio_mutex_up(startup_mutex); |
1761 | ||
9ec7779f | 1762 | while (threads && !ret) { |
2e1df07d JA |
1763 | usleep(DISK_UTIL_MSEC * 1000); |
1764 | if (!threads) | |
1765 | break; | |
9ec7779f | 1766 | ret = update_io_ticks(); |
2e1df07d JA |
1767 | |
1768 | if (!is_backend) | |
1769 | print_thread_status(); | |
1770 | } | |
1771 | ||
9ec7779f | 1772 | fio_mutex_up(disk_thread_mutex); |
2e1df07d JA |
1773 | return NULL; |
1774 | } | |
1775 | ||
1776 | static int create_disk_util_thread(void) | |
1777 | { | |
1778 | int ret; | |
1779 | ||
9ec7779f JA |
1780 | setup_disk_util(); |
1781 | ||
521da527 | 1782 | disk_thread_mutex = fio_mutex_init(FIO_MUTEX_LOCKED); |
9ec7779f | 1783 | |
2e1df07d JA |
1784 | ret = pthread_create(&disk_util_thread, NULL, disk_thread_main, NULL); |
1785 | if (ret) { | |
9ec7779f | 1786 | fio_mutex_remove(disk_thread_mutex); |
2e1df07d JA |
1787 | log_err("Can't create disk util thread: %s\n", strerror(ret)); |
1788 | return 1; | |
1789 | } | |
1790 | ||
1791 | ret = pthread_detach(disk_util_thread); | |
1792 | if (ret) { | |
9ec7779f | 1793 | fio_mutex_remove(disk_thread_mutex); |
2e1df07d JA |
1794 | log_err("Can't detatch disk util thread: %s\n", strerror(ret)); |
1795 | return 1; | |
1796 | } | |
1797 | ||
1798 | dprint(FD_MUTEX, "wait on startup_mutex\n"); | |
1799 | fio_mutex_down(startup_mutex); | |
1800 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); | |
1801 | return 0; | |
1802 | } | |
1803 | ||
2e1df07d JA |
1804 | int fio_backend(void) |
1805 | { | |
1806 | struct thread_data *td; | |
1807 | int i; | |
1808 | ||
1809 | if (exec_profile) { | |
1810 | if (load_profile(exec_profile)) | |
1811 | return 1; | |
1812 | free(exec_profile); | |
1813 | exec_profile = NULL; | |
1814 | } | |
1815 | if (!thread_number) | |
1816 | return 0; | |
1817 | ||
1818 | if (write_bw_log) { | |
1819 | setup_log(&agg_io_log[DDIR_READ], 0); | |
1820 | setup_log(&agg_io_log[DDIR_WRITE], 0); | |
6eaf09d6 | 1821 | setup_log(&agg_io_log[DDIR_TRIM], 0); |
2e1df07d JA |
1822 | } |
1823 | ||
521da527 | 1824 | startup_mutex = fio_mutex_init(FIO_MUTEX_LOCKED); |
2e1df07d JA |
1825 | if (startup_mutex == NULL) |
1826 | return 1; | |
521da527 | 1827 | writeout_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED); |
2e1df07d JA |
1828 | if (writeout_mutex == NULL) |
1829 | return 1; | |
1830 | ||
1831 | set_genesis_time(); | |
1832 | create_disk_util_thread(); | |
1833 | ||
1834 | cgroup_list = smalloc(sizeof(*cgroup_list)); | |
1835 | INIT_FLIST_HEAD(cgroup_list); | |
1836 | ||
1837 | run_threads(); | |
1838 | ||
1839 | if (!fio_abort) { | |
1840 | show_run_stats(); | |
1841 | if (write_bw_log) { | |
1842 | __finish_log(agg_io_log[DDIR_READ], "agg-read_bw.log"); | |
1843 | __finish_log(agg_io_log[DDIR_WRITE], | |
1844 | "agg-write_bw.log"); | |
6eaf09d6 SL |
1845 | __finish_log(agg_io_log[DDIR_TRIM], |
1846 | "agg-write_bw.log"); | |
2e1df07d JA |
1847 | } |
1848 | } | |
1849 | ||
1850 | for_each_td(td, i) | |
1851 | fio_options_free(td); | |
1852 | ||
a462baef | 1853 | free_disk_util(); |
2e1df07d JA |
1854 | cgroup_kill(cgroup_list); |
1855 | sfree(cgroup_list); | |
1856 | sfree(cgroup_mnt); | |
1857 | ||
1858 | fio_mutex_remove(startup_mutex); | |
1859 | fio_mutex_remove(writeout_mutex); | |
9ec7779f | 1860 | fio_mutex_remove(disk_thread_mutex); |
2e1df07d JA |
1861 | return exit_value; |
1862 | } |