Commit | Line | Data |
---|---|---|
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> | |
2e1df07d | 37 | #include <sys/mman.h> |
ff6bb260 | 38 | #include <math.h> |
2e1df07d JA |
39 | |
40 | #include "fio.h" | |
a5e0ee11 O |
41 | #ifndef FIO_NO_HAVE_SHM_H |
42 | #include <sys/shm.h> | |
43 | #endif | |
2e1df07d JA |
44 | #include "hash.h" |
45 | #include "smalloc.h" | |
46 | #include "verify.h" | |
47 | #include "trim.h" | |
48 | #include "diskutil.h" | |
49 | #include "cgroup.h" | |
50 | #include "profile.h" | |
51 | #include "lib/rand.h" | |
f7690c4a | 52 | #include "lib/memalign.h" |
2e1df07d | 53 | #include "server.h" |
44404c5a | 54 | #include "lib/getrusage.h" |
f2a2ce0e | 55 | #include "idletime.h" |
002fe734 | 56 | #include "err.h" |
a9da8ab2 | 57 | #include "workqueue.h" |
e81ecca3 | 58 | #include "lib/mountcheck.h" |
40511301 | 59 | #include "rate-submit.h" |
a39fb9ea | 60 | #include "helper_thread.h" |
2e1df07d | 61 | |
2e1df07d | 62 | static struct fio_mutex *startup_mutex; |
2e1df07d JA |
63 | static struct flist_head *cgroup_list; |
64 | static char *cgroup_mnt; | |
65 | static int exit_value; | |
66 | static volatile int fio_abort; | |
3a5f6bde JA |
67 | static unsigned int nr_process = 0; |
68 | static unsigned int nr_thread = 0; | |
2e1df07d | 69 | |
6eaf09d6 | 70 | struct io_log *agg_io_log[DDIR_RWDIR_CNT]; |
2e1df07d | 71 | |
a3efc919 JA |
72 | int groupid = 0; |
73 | unsigned int thread_number = 0; | |
108fea77 | 74 | unsigned int stat_number = 0; |
a3efc919 JA |
75 | int shm_id = 0; |
76 | int temp_stall_ts; | |
77 | unsigned long done_secs = 0; | |
a47591e4 | 78 | |
2e1df07d | 79 | #define PAGE_ALIGN(buf) \ |
e43606c2 | 80 | (char *) (((uintptr_t) (buf) + page_mask) & ~page_mask) |
2e1df07d JA |
81 | |
82 | #define JOB_START_TIMEOUT (5 * 1000) | |
83 | ||
84 | static void sig_int(int sig) | |
85 | { | |
86 | if (threads) { | |
87 | if (is_backend) | |
88 | fio_server_got_signal(sig); | |
89 | else { | |
90 | log_info("\nfio: terminating on signal %d\n", sig); | |
e411c301 | 91 | log_info_flush(); |
2e1df07d JA |
92 | exit_value = 128; |
93 | } | |
94 | ||
95 | fio_terminate_threads(TERMINATE_ALL); | |
96 | } | |
97 | } | |
98 | ||
d2235e56 | 99 | void sig_show_status(int sig) |
4c6d91e8 JA |
100 | { |
101 | show_running_run_stats(); | |
102 | } | |
103 | ||
2e1df07d JA |
104 | static void set_sig_handlers(void) |
105 | { | |
106 | struct sigaction act; | |
107 | ||
108 | memset(&act, 0, sizeof(act)); | |
109 | act.sa_handler = sig_int; | |
110 | act.sa_flags = SA_RESTART; | |
111 | sigaction(SIGINT, &act, NULL); | |
112 | ||
113 | memset(&act, 0, sizeof(act)); | |
114 | act.sa_handler = sig_int; | |
115 | act.sa_flags = SA_RESTART; | |
116 | sigaction(SIGTERM, &act, NULL); | |
117 | ||
2f694507 BC |
118 | /* Windows uses SIGBREAK as a quit signal from other applications */ |
119 | #ifdef WIN32 | |
120 | memset(&act, 0, sizeof(act)); | |
121 | act.sa_handler = sig_int; | |
122 | act.sa_flags = SA_RESTART; | |
123 | sigaction(SIGBREAK, &act, NULL); | |
124 | #endif | |
125 | ||
4c6d91e8 JA |
126 | memset(&act, 0, sizeof(act)); |
127 | act.sa_handler = sig_show_status; | |
128 | act.sa_flags = SA_RESTART; | |
129 | sigaction(SIGUSR1, &act, NULL); | |
130 | ||
2e1df07d JA |
131 | if (is_backend) { |
132 | memset(&act, 0, sizeof(act)); | |
133 | act.sa_handler = sig_int; | |
134 | act.sa_flags = SA_RESTART; | |
135 | sigaction(SIGPIPE, &act, NULL); | |
136 | } | |
137 | } | |
138 | ||
139 | /* | |
140 | * Check if we are above the minimum rate given. | |
141 | */ | |
e39c0676 JA |
142 | static bool __check_min_rate(struct thread_data *td, struct timeval *now, |
143 | enum fio_ddir ddir) | |
2e1df07d JA |
144 | { |
145 | unsigned long long bytes = 0; | |
146 | unsigned long iops = 0; | |
147 | unsigned long spent; | |
148 | unsigned long rate; | |
149 | unsigned int ratemin = 0; | |
150 | unsigned int rate_iops = 0; | |
151 | unsigned int rate_iops_min = 0; | |
152 | ||
153 | assert(ddir_rw(ddir)); | |
154 | ||
155 | if (!td->o.ratemin[ddir] && !td->o.rate_iops_min[ddir]) | |
e39c0676 | 156 | return false; |
2e1df07d JA |
157 | |
158 | /* | |
159 | * allow a 2 second settle period in the beginning | |
160 | */ | |
161 | if (mtime_since(&td->start, now) < 2000) | |
e39c0676 | 162 | return false; |
2e1df07d JA |
163 | |
164 | iops += td->this_io_blocks[ddir]; | |
165 | bytes += td->this_io_bytes[ddir]; | |
166 | ratemin += td->o.ratemin[ddir]; | |
167 | rate_iops += td->o.rate_iops[ddir]; | |
168 | rate_iops_min += td->o.rate_iops_min[ddir]; | |
169 | ||
170 | /* | |
171 | * if rate blocks is set, sample is running | |
172 | */ | |
173 | if (td->rate_bytes[ddir] || td->rate_blocks[ddir]) { | |
174 | spent = mtime_since(&td->lastrate[ddir], now); | |
175 | if (spent < td->o.ratecycle) | |
e39c0676 | 176 | return false; |
2e1df07d | 177 | |
20e37e4a | 178 | if (td->o.rate[ddir] || td->o.ratemin[ddir]) { |
2e1df07d JA |
179 | /* |
180 | * check bandwidth specified rate | |
181 | */ | |
182 | if (bytes < td->rate_bytes[ddir]) { | |
183 | log_err("%s: min rate %u not met\n", td->o.name, | |
184 | ratemin); | |
e39c0676 | 185 | return true; |
2e1df07d | 186 | } else { |
49cba9b3 JA |
187 | if (spent) |
188 | rate = ((bytes - td->rate_bytes[ddir]) * 1000) / spent; | |
189 | else | |
190 | rate = 0; | |
191 | ||
2e1df07d JA |
192 | if (rate < ratemin || |
193 | bytes < td->rate_bytes[ddir]) { | |
194 | log_err("%s: min rate %u not met, got" | |
195 | " %luKB/sec\n", td->o.name, | |
196 | ratemin, rate); | |
e39c0676 | 197 | return true; |
2e1df07d JA |
198 | } |
199 | } | |
200 | } else { | |
201 | /* | |
202 | * checks iops specified rate | |
203 | */ | |
204 | if (iops < rate_iops) { | |
205 | log_err("%s: min iops rate %u not met\n", | |
206 | td->o.name, rate_iops); | |
e39c0676 | 207 | return true; |
2e1df07d | 208 | } else { |
4c707a3b JA |
209 | if (spent) |
210 | rate = ((iops - td->rate_blocks[ddir]) * 1000) / spent; | |
211 | else | |
212 | rate = 0; | |
213 | ||
2e1df07d JA |
214 | if (rate < rate_iops_min || |
215 | iops < td->rate_blocks[ddir]) { | |
216 | log_err("%s: min iops rate %u not met," | |
217 | " got %lu\n", td->o.name, | |
218 | rate_iops_min, rate); | |
e39c0676 | 219 | return true; |
2e1df07d JA |
220 | } |
221 | } | |
222 | } | |
223 | } | |
224 | ||
225 | td->rate_bytes[ddir] = bytes; | |
226 | td->rate_blocks[ddir] = iops; | |
227 | memcpy(&td->lastrate[ddir], now, sizeof(*now)); | |
e39c0676 | 228 | return false; |
2e1df07d JA |
229 | } |
230 | ||
e39c0676 | 231 | static bool check_min_rate(struct thread_data *td, struct timeval *now) |
2e1df07d | 232 | { |
e39c0676 | 233 | bool ret = false; |
2e1df07d | 234 | |
55312f9f | 235 | if (td->bytes_done[DDIR_READ]) |
6eaf09d6 | 236 | ret |= __check_min_rate(td, now, DDIR_READ); |
55312f9f | 237 | if (td->bytes_done[DDIR_WRITE]) |
6eaf09d6 | 238 | ret |= __check_min_rate(td, now, DDIR_WRITE); |
55312f9f | 239 | if (td->bytes_done[DDIR_TRIM]) |
6eaf09d6 | 240 | ret |= __check_min_rate(td, now, DDIR_TRIM); |
2e1df07d JA |
241 | |
242 | return ret; | |
243 | } | |
244 | ||
245 | /* | |
246 | * When job exits, we can cancel the in-flight IO if we are using async | |
247 | * io. Attempt to do so. | |
248 | */ | |
249 | static void cleanup_pending_aio(struct thread_data *td) | |
250 | { | |
2e1df07d JA |
251 | int r; |
252 | ||
253 | /* | |
254 | * get immediately available events, if any | |
255 | */ | |
55312f9f | 256 | r = io_u_queued_complete(td, 0); |
2e1df07d JA |
257 | if (r < 0) |
258 | return; | |
259 | ||
260 | /* | |
261 | * now cancel remaining active events | |
262 | */ | |
263 | if (td->io_ops->cancel) { | |
2ae0b204 JA |
264 | struct io_u *io_u; |
265 | int i; | |
2e1df07d | 266 | |
2ae0b204 JA |
267 | io_u_qiter(&td->io_u_all, io_u, i) { |
268 | if (io_u->flags & IO_U_F_FLIGHT) { | |
2e1df07d JA |
269 | r = td->io_ops->cancel(td, io_u); |
270 | if (!r) | |
271 | put_io_u(td, io_u); | |
272 | } | |
273 | } | |
274 | } | |
275 | ||
276 | if (td->cur_depth) | |
55312f9f | 277 | r = io_u_queued_complete(td, td->cur_depth); |
2e1df07d JA |
278 | } |
279 | ||
280 | /* | |
281 | * Helper to handle the final sync of a file. Works just like the normal | |
282 | * io path, just does everything sync. | |
283 | */ | |
e39c0676 | 284 | static bool fio_io_sync(struct thread_data *td, struct fio_file *f) |
2e1df07d JA |
285 | { |
286 | struct io_u *io_u = __get_io_u(td); | |
287 | int ret; | |
288 | ||
289 | if (!io_u) | |
e39c0676 | 290 | return true; |
2e1df07d JA |
291 | |
292 | io_u->ddir = DDIR_SYNC; | |
293 | io_u->file = f; | |
294 | ||
295 | if (td_io_prep(td, io_u)) { | |
296 | put_io_u(td, io_u); | |
e39c0676 | 297 | return true; |
2e1df07d JA |
298 | } |
299 | ||
300 | requeue: | |
301 | ret = td_io_queue(td, io_u); | |
302 | if (ret < 0) { | |
303 | td_verror(td, io_u->error, "td_io_queue"); | |
304 | put_io_u(td, io_u); | |
e39c0676 | 305 | return true; |
2e1df07d | 306 | } else if (ret == FIO_Q_QUEUED) { |
42ff945c JA |
307 | if (td_io_commit(td)) |
308 | return true; | |
55312f9f | 309 | if (io_u_queued_complete(td, 1) < 0) |
e39c0676 | 310 | return true; |
2e1df07d JA |
311 | } else if (ret == FIO_Q_COMPLETED) { |
312 | if (io_u->error) { | |
313 | td_verror(td, io_u->error, "td_io_queue"); | |
e39c0676 | 314 | return true; |
2e1df07d JA |
315 | } |
316 | ||
55312f9f | 317 | if (io_u_sync_complete(td, io_u) < 0) |
e39c0676 | 318 | return true; |
2e1df07d JA |
319 | } else if (ret == FIO_Q_BUSY) { |
320 | if (td_io_commit(td)) | |
e39c0676 | 321 | return true; |
2e1df07d JA |
322 | goto requeue; |
323 | } | |
324 | ||
e39c0676 | 325 | return false; |
2e1df07d | 326 | } |
a3efc919 | 327 | |
61ee0f86 JA |
328 | static int fio_file_fsync(struct thread_data *td, struct fio_file *f) |
329 | { | |
330 | int ret; | |
331 | ||
332 | if (fio_file_open(f)) | |
333 | return fio_io_sync(td, f); | |
334 | ||
335 | if (td_io_open_file(td, f)) | |
336 | return 1; | |
337 | ||
338 | ret = fio_io_sync(td, f); | |
339 | td_io_close_file(td, f); | |
340 | return ret; | |
341 | } | |
342 | ||
2e1df07d JA |
343 | static inline void __update_tv_cache(struct thread_data *td) |
344 | { | |
345 | fio_gettime(&td->tv_cache, NULL); | |
346 | } | |
347 | ||
348 | static inline void update_tv_cache(struct thread_data *td) | |
349 | { | |
350 | if ((++td->tv_cache_nr & td->tv_cache_mask) == td->tv_cache_mask) | |
351 | __update_tv_cache(td); | |
352 | } | |
353 | ||
e39c0676 | 354 | static inline bool runtime_exceeded(struct thread_data *td, struct timeval *t) |
2e1df07d JA |
355 | { |
356 | if (in_ramp_time(td)) | |
e39c0676 | 357 | return false; |
2e1df07d | 358 | if (!td->o.timeout) |
e39c0676 | 359 | return false; |
0de5b26f | 360 | if (utime_since(&td->epoch, t) >= td->o.timeout) |
e39c0676 | 361 | return true; |
2e1df07d | 362 | |
e39c0676 | 363 | return false; |
2e1df07d JA |
364 | } |
365 | ||
95603b74 BF |
366 | /* |
367 | * We need to update the runtime consistently in ms, but keep a running | |
368 | * tally of the current elapsed time in microseconds for sub millisecond | |
369 | * updates. | |
370 | */ | |
371 | static inline void update_runtime(struct thread_data *td, | |
372 | unsigned long long *elapsed_us, | |
373 | const enum fio_ddir ddir) | |
374 | { | |
d5c8ea29 JA |
375 | if (ddir == DDIR_WRITE && td_write(td) && td->o.verify_only) |
376 | return; | |
377 | ||
95603b74 BF |
378 | td->ts.runtime[ddir] -= (elapsed_us[ddir] + 999) / 1000; |
379 | elapsed_us[ddir] += utime_since_now(&td->start); | |
380 | td->ts.runtime[ddir] += (elapsed_us[ddir] + 999) / 1000; | |
381 | } | |
382 | ||
e39c0676 JA |
383 | static bool break_on_this_error(struct thread_data *td, enum fio_ddir ddir, |
384 | int *retptr) | |
2e1df07d JA |
385 | { |
386 | int ret = *retptr; | |
387 | ||
388 | if (ret < 0 || td->error) { | |
8b28bd41 DM |
389 | int err = td->error; |
390 | enum error_type_bit eb; | |
2e1df07d JA |
391 | |
392 | if (ret < 0) | |
393 | err = -ret; | |
2e1df07d | 394 | |
8b28bd41 DM |
395 | eb = td_error_type(ddir, err); |
396 | if (!(td->o.continue_on_error & (1 << eb))) | |
e39c0676 | 397 | return true; |
2e1df07d | 398 | |
8b28bd41 | 399 | if (td_non_fatal_error(td, eb, err)) { |
2e1df07d JA |
400 | /* |
401 | * Continue with the I/Os in case of | |
402 | * a non fatal error. | |
403 | */ | |
404 | update_error_count(td, err); | |
405 | td_clear_error(td); | |
406 | *retptr = 0; | |
e39c0676 | 407 | return false; |
2e1df07d JA |
408 | } else if (td->o.fill_device && err == ENOSPC) { |
409 | /* | |
410 | * We expect to hit this error if | |
411 | * fill_device option is set. | |
412 | */ | |
413 | td_clear_error(td); | |
ebea2133 | 414 | fio_mark_td_terminate(td); |
e39c0676 | 415 | return true; |
2e1df07d JA |
416 | } else { |
417 | /* | |
418 | * Stop the I/O in case of a fatal | |
419 | * error. | |
420 | */ | |
421 | update_error_count(td, err); | |
e39c0676 | 422 | return true; |
2e1df07d JA |
423 | } |
424 | } | |
425 | ||
e39c0676 | 426 | return false; |
2e1df07d JA |
427 | } |
428 | ||
c97f1ad6 JA |
429 | static void check_update_rusage(struct thread_data *td) |
430 | { | |
431 | if (td->update_rusage) { | |
432 | td->update_rusage = 0; | |
433 | update_rusage_stat(td); | |
434 | fio_mutex_up(td->rusage_sem); | |
435 | } | |
436 | } | |
437 | ||
55312f9f | 438 | static int wait_for_completions(struct thread_data *td, struct timeval *time) |
69fea81e JA |
439 | { |
440 | const int full = queue_full(td); | |
441 | int min_evts = 0; | |
442 | int ret; | |
443 | ||
1fed2080 JA |
444 | if (td->flags & TD_F_REGROW_LOGS) { |
445 | ret = io_u_quiesce(td); | |
446 | regrow_logs(td); | |
447 | return ret; | |
448 | } | |
449 | ||
69fea81e JA |
450 | /* |
451 | * if the queue is full, we MUST reap at least 1 event | |
452 | */ | |
82407585 | 453 | min_evts = min(td->o.iodepth_batch_complete_min, td->cur_depth); |
4b157ac6 | 454 | if ((full && !min_evts) || !td->o.iodepth_batch_complete_min) |
69fea81e JA |
455 | min_evts = 1; |
456 | ||
66b6c5ef | 457 | if (time && (__should_check_rate(td, DDIR_READ) || |
69fea81e JA |
458 | __should_check_rate(td, DDIR_WRITE) || |
459 | __should_check_rate(td, DDIR_TRIM))) | |
460 | fio_gettime(time, NULL); | |
461 | ||
462 | do { | |
55312f9f | 463 | ret = io_u_queued_complete(td, min_evts); |
69fea81e JA |
464 | if (ret < 0) |
465 | break; | |
466 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
467 | ||
468 | return ret; | |
469 | } | |
470 | ||
e9d512d8 JA |
471 | int io_queue_event(struct thread_data *td, struct io_u *io_u, int *ret, |
472 | enum fio_ddir ddir, uint64_t *bytes_issued, int from_verify, | |
473 | struct timeval *comp_time) | |
474 | { | |
475 | int ret2; | |
476 | ||
477 | switch (*ret) { | |
478 | case FIO_Q_COMPLETED: | |
479 | if (io_u->error) { | |
480 | *ret = -io_u->error; | |
481 | clear_io_u(td, io_u); | |
482 | } else if (io_u->resid) { | |
483 | int bytes = io_u->xfer_buflen - io_u->resid; | |
484 | struct fio_file *f = io_u->file; | |
485 | ||
486 | if (bytes_issued) | |
487 | *bytes_issued += bytes; | |
488 | ||
489 | if (!from_verify) | |
490 | trim_io_piece(td, io_u); | |
491 | ||
492 | /* | |
493 | * zero read, fail | |
494 | */ | |
495 | if (!bytes) { | |
496 | if (!from_verify) | |
497 | unlog_io_piece(td, io_u); | |
498 | td_verror(td, EIO, "full resid"); | |
499 | put_io_u(td, io_u); | |
500 | break; | |
501 | } | |
502 | ||
503 | io_u->xfer_buflen = io_u->resid; | |
504 | io_u->xfer_buf += bytes; | |
505 | io_u->offset += bytes; | |
506 | ||
507 | if (ddir_rw(io_u->ddir)) | |
508 | td->ts.short_io_u[io_u->ddir]++; | |
509 | ||
510 | f = io_u->file; | |
511 | if (io_u->offset == f->real_file_size) | |
512 | goto sync_done; | |
513 | ||
514 | requeue_io_u(td, &io_u); | |
515 | } else { | |
516 | sync_done: | |
517 | if (comp_time && (__should_check_rate(td, DDIR_READ) || | |
518 | __should_check_rate(td, DDIR_WRITE) || | |
519 | __should_check_rate(td, DDIR_TRIM))) | |
520 | fio_gettime(comp_time, NULL); | |
521 | ||
522 | *ret = io_u_sync_complete(td, io_u); | |
523 | if (*ret < 0) | |
524 | break; | |
525 | } | |
a0e3e5a6 | 526 | |
cf2c8d52 JA |
527 | if (td->flags & TD_F_REGROW_LOGS) |
528 | regrow_logs(td); | |
529 | ||
a0e3e5a6 EW |
530 | /* |
531 | * when doing I/O (not when verifying), | |
532 | * check for any errors that are to be ignored | |
533 | */ | |
534 | if (!from_verify) | |
535 | break; | |
536 | ||
e9d512d8 JA |
537 | return 0; |
538 | case FIO_Q_QUEUED: | |
539 | /* | |
540 | * if the engine doesn't have a commit hook, | |
541 | * the io_u is really queued. if it does have such | |
542 | * a hook, it has to call io_u_queued() itself. | |
543 | */ | |
544 | if (td->io_ops->commit == NULL) | |
545 | io_u_queued(td, io_u); | |
546 | if (bytes_issued) | |
547 | *bytes_issued += io_u->xfer_buflen; | |
548 | break; | |
549 | case FIO_Q_BUSY: | |
550 | if (!from_verify) | |
551 | unlog_io_piece(td, io_u); | |
552 | requeue_io_u(td, &io_u); | |
553 | ret2 = td_io_commit(td); | |
554 | if (ret2 < 0) | |
555 | *ret = ret2; | |
556 | break; | |
557 | default: | |
b0775325 | 558 | assert(*ret < 0); |
e9d512d8 JA |
559 | td_verror(td, -(*ret), "td_io_queue"); |
560 | break; | |
561 | } | |
562 | ||
563 | if (break_on_this_error(td, ddir, ret)) | |
564 | return 1; | |
565 | ||
566 | return 0; | |
567 | } | |
568 | ||
e39c0676 | 569 | static inline bool io_in_polling(struct thread_data *td) |
82407585 RP |
570 | { |
571 | return !td->o.iodepth_batch_complete_min && | |
572 | !td->o.iodepth_batch_complete_max; | |
573 | } | |
39c1c323 | 574 | /* |
575 | * Unlinks files from thread data fio_file structure | |
576 | */ | |
577 | static int unlink_all_files(struct thread_data *td) | |
578 | { | |
579 | struct fio_file *f; | |
580 | unsigned int i; | |
581 | int ret = 0; | |
582 | ||
583 | for_each_file(td, f, i) { | |
584 | if (f->filetype != FIO_TYPE_FILE) | |
585 | continue; | |
586 | ret = td_io_unlink_file(td, f); | |
587 | if (ret) | |
588 | break; | |
589 | } | |
590 | ||
591 | if (ret) | |
592 | td_verror(td, ret, "unlink_all_files"); | |
593 | ||
594 | return ret; | |
595 | } | |
82407585 | 596 | |
2e1df07d JA |
597 | /* |
598 | * The main verify engine. Runs over the writes we previously submitted, | |
599 | * reads the blocks back in, and checks the crc/md5 of the data. | |
600 | */ | |
100f49f1 | 601 | static void do_verify(struct thread_data *td, uint64_t verify_bytes) |
2e1df07d JA |
602 | { |
603 | struct fio_file *f; | |
604 | struct io_u *io_u; | |
605 | int ret, min_events; | |
606 | unsigned int i; | |
607 | ||
608 | dprint(FD_VERIFY, "starting loop\n"); | |
609 | ||
610 | /* | |
611 | * sync io first and invalidate cache, to make sure we really | |
612 | * read from disk. | |
613 | */ | |
614 | for_each_file(td, f, i) { | |
615 | if (!fio_file_open(f)) | |
616 | continue; | |
617 | if (fio_io_sync(td, f)) | |
618 | break; | |
619 | if (file_invalidate_cache(td, f)) | |
620 | break; | |
621 | } | |
622 | ||
c97f1ad6 JA |
623 | check_update_rusage(td); |
624 | ||
2e1df07d JA |
625 | if (td->error) |
626 | return; | |
627 | ||
8f380de2 CJ |
628 | /* |
629 | * verify_state needs to be reset before verification | |
630 | * proceeds so that expected random seeds match actual | |
631 | * random seeds in headers. The main loop will reset | |
632 | * all random number generators if randrepeat is set. | |
633 | */ | |
634 | if (!td->o.rand_repeatable) | |
635 | td_fill_verify_state_seed(td); | |
636 | ||
2e1df07d JA |
637 | td_set_runstate(td, TD_VERIFYING); |
638 | ||
639 | io_u = NULL; | |
640 | while (!td->terminate) { | |
fbccf46c | 641 | enum fio_ddir ddir; |
e9d512d8 | 642 | int full; |
2e1df07d JA |
643 | |
644 | update_tv_cache(td); | |
c97f1ad6 | 645 | check_update_rusage(td); |
2e1df07d JA |
646 | |
647 | if (runtime_exceeded(td, &td->tv_cache)) { | |
648 | __update_tv_cache(td); | |
649 | if (runtime_exceeded(td, &td->tv_cache)) { | |
ebea2133 | 650 | fio_mark_td_terminate(td); |
2e1df07d JA |
651 | break; |
652 | } | |
653 | } | |
654 | ||
9e684a49 DE |
655 | if (flow_threshold_exceeded(td)) |
656 | continue; | |
657 | ||
44cbc6da JA |
658 | if (!td->o.experimental_verify) { |
659 | io_u = __get_io_u(td); | |
660 | if (!io_u) | |
661 | break; | |
2e1df07d | 662 | |
44cbc6da JA |
663 | if (get_next_verify(td, io_u)) { |
664 | put_io_u(td, io_u); | |
665 | break; | |
666 | } | |
2e1df07d | 667 | |
44cbc6da JA |
668 | if (td_io_prep(td, io_u)) { |
669 | put_io_u(td, io_u); | |
670 | break; | |
671 | } | |
672 | } else { | |
55312f9f | 673 | if (ddir_rw_sum(td->bytes_done) + td->o.rw_min_bs > verify_bytes) |
100f49f1 JA |
674 | break; |
675 | ||
bcd5abfa | 676 | while ((io_u = get_io_u(td)) != NULL) { |
059b61f2 | 677 | if (IS_ERR_OR_NULL(io_u)) { |
002fe734 JA |
678 | io_u = NULL; |
679 | ret = FIO_Q_BUSY; | |
680 | goto reap; | |
681 | } | |
682 | ||
bcd5abfa JA |
683 | /* |
684 | * We are only interested in the places where | |
685 | * we wrote or trimmed IOs. Turn those into | |
686 | * reads for verification purposes. | |
687 | */ | |
688 | if (io_u->ddir == DDIR_READ) { | |
689 | /* | |
690 | * Pretend we issued it for rwmix | |
691 | * accounting | |
692 | */ | |
693 | td->io_issues[DDIR_READ]++; | |
694 | put_io_u(td, io_u); | |
695 | continue; | |
696 | } else if (io_u->ddir == DDIR_TRIM) { | |
697 | io_u->ddir = DDIR_READ; | |
1651e431 | 698 | io_u_set(td, io_u, IO_U_F_TRIMMED); |
bcd5abfa JA |
699 | break; |
700 | } else if (io_u->ddir == DDIR_WRITE) { | |
701 | io_u->ddir = DDIR_READ; | |
702 | break; | |
703 | } else { | |
704 | put_io_u(td, io_u); | |
705 | continue; | |
706 | } | |
707 | } | |
44cbc6da | 708 | |
bcd5abfa | 709 | if (!io_u) |
44cbc6da | 710 | break; |
2e1df07d JA |
711 | } |
712 | ||
ca09be4b JA |
713 | if (verify_state_should_stop(td, io_u)) { |
714 | put_io_u(td, io_u); | |
715 | break; | |
716 | } | |
717 | ||
2e1df07d JA |
718 | if (td->o.verify_async) |
719 | io_u->end_io = verify_io_u_async; | |
720 | else | |
721 | io_u->end_io = verify_io_u; | |
722 | ||
fbccf46c | 723 | ddir = io_u->ddir; |
10adc4a7 GG |
724 | if (!td->o.disable_slat) |
725 | fio_gettime(&io_u->start_time, NULL); | |
fbccf46c | 726 | |
2e1df07d | 727 | ret = td_io_queue(td, io_u); |
2e1df07d | 728 | |
e9d512d8 | 729 | if (io_queue_event(td, io_u, &ret, ddir, NULL, 1, NULL)) |
2e1df07d JA |
730 | break; |
731 | ||
732 | /* | |
733 | * if we can queue more, do so. but check if there are | |
734 | * completed io_u's first. Note that we can get BUSY even | |
735 | * without IO queued, if the system is resource starved. | |
736 | */ | |
002fe734 | 737 | reap: |
2e1df07d | 738 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); |
82407585 | 739 | if (full || io_in_polling(td)) |
55312f9f | 740 | ret = wait_for_completions(td, NULL); |
2e1df07d | 741 | |
2e1df07d JA |
742 | if (ret < 0) |
743 | break; | |
744 | } | |
745 | ||
c97f1ad6 JA |
746 | check_update_rusage(td); |
747 | ||
2e1df07d JA |
748 | if (!td->error) { |
749 | min_events = td->cur_depth; | |
750 | ||
751 | if (min_events) | |
55312f9f | 752 | ret = io_u_queued_complete(td, min_events); |
2e1df07d JA |
753 | } else |
754 | cleanup_pending_aio(td); | |
755 | ||
756 | td_set_runstate(td, TD_RUNNING); | |
757 | ||
758 | dprint(FD_VERIFY, "exiting loop\n"); | |
759 | } | |
760 | ||
e39c0676 | 761 | static bool exceeds_number_ios(struct thread_data *td) |
3939fe85 JA |
762 | { |
763 | unsigned long long number_ios; | |
764 | ||
765 | if (!td->o.number_ios) | |
e39c0676 | 766 | return false; |
3939fe85 | 767 | |
cf8a46a7 | 768 | number_ios = ddir_rw_sum(td->io_blocks); |
3939fe85 JA |
769 | number_ios += td->io_u_queued + td->io_u_in_flight; |
770 | ||
cf8a46a7 | 771 | return number_ios >= (td->o.number_ios * td->loops); |
3939fe85 JA |
772 | } |
773 | ||
926098e0 | 774 | static bool io_bytes_exceeded(struct thread_data *td, uint64_t *this_bytes) |
f7078f7b | 775 | { |
77731b29 | 776 | unsigned long long bytes, limit; |
f7078f7b JA |
777 | |
778 | if (td_rw(td)) | |
926098e0 | 779 | bytes = this_bytes[DDIR_READ] + this_bytes[DDIR_WRITE]; |
f7078f7b | 780 | else if (td_write(td)) |
926098e0 | 781 | bytes = this_bytes[DDIR_WRITE]; |
6eaf09d6 | 782 | else if (td_read(td)) |
926098e0 | 783 | bytes = this_bytes[DDIR_READ]; |
f7078f7b | 784 | else |
926098e0 | 785 | bytes = this_bytes[DDIR_TRIM]; |
f7078f7b | 786 | |
77731b29 JA |
787 | if (td->o.io_limit) |
788 | limit = td->o.io_limit; | |
789 | else | |
790 | limit = td->o.size; | |
791 | ||
cf8a46a7 | 792 | limit *= td->loops; |
77731b29 | 793 | return bytes >= limit || exceeds_number_ios(td); |
f7078f7b JA |
794 | } |
795 | ||
926098e0 | 796 | static bool io_issue_bytes_exceeded(struct thread_data *td) |
e28dd2cf | 797 | { |
926098e0 JA |
798 | return io_bytes_exceeded(td, td->io_issue_bytes); |
799 | } | |
e28dd2cf | 800 | |
926098e0 JA |
801 | static bool io_complete_bytes_exceeded(struct thread_data *td) |
802 | { | |
803 | return io_bytes_exceeded(td, td->this_io_bytes); | |
e28dd2cf JE |
804 | } |
805 | ||
50a8ce86 D |
806 | /* |
807 | * used to calculate the next io time for rate control | |
808 | * | |
809 | */ | |
810 | static long long usec_for_io(struct thread_data *td, enum fio_ddir ddir) | |
811 | { | |
ff6bb260 | 812 | uint64_t secs, remainder, bps, bytes, iops; |
50a8ce86 D |
813 | |
814 | assert(!(td->flags & TD_F_CHILD)); | |
815 | bytes = td->rate_io_issue_bytes[ddir]; | |
816 | bps = td->rate_bps[ddir]; | |
ff6bb260 | 817 | |
6de65959 | 818 | if (td->o.rate_process == RATE_PROCESS_POISSON) { |
a77d139b | 819 | uint64_t val; |
ff6bb260 | 820 | iops = bps / td->o.bs[ddir]; |
a77d139b JA |
821 | val = (int64_t) (1000000 / iops) * |
822 | -logf(__rand_0_1(&td->poisson_state)); | |
823 | if (val) { | |
824 | dprint(FD_RATE, "poisson rate iops=%llu\n", | |
825 | (unsigned long long) 1000000 / val); | |
826 | } | |
827 | td->last_usec += val; | |
ff6bb260 SL |
828 | return td->last_usec; |
829 | } else if (bps) { | |
50a8ce86 D |
830 | secs = bytes / bps; |
831 | remainder = bytes % bps; | |
832 | return remainder * 1000000 / bps + secs * 1000000; | |
e7b24047 JA |
833 | } |
834 | ||
835 | return 0; | |
50a8ce86 D |
836 | } |
837 | ||
2e1df07d JA |
838 | /* |
839 | * Main IO worker function. It retrieves io_u's to process and queues | |
840 | * and reaps them, checking for rate and errors along the way. | |
100f49f1 JA |
841 | * |
842 | * Returns number of bytes written and trimmed. | |
2e1df07d | 843 | */ |
95b03be0 | 844 | static void do_io(struct thread_data *td, uint64_t *bytes_done) |
2e1df07d JA |
845 | { |
846 | unsigned int i; | |
847 | int ret = 0; | |
c2703bf3 | 848 | uint64_t total_bytes, bytes_issued = 0; |
70c68076 | 849 | |
95b03be0 JA |
850 | for (i = 0; i < DDIR_RWDIR_CNT; i++) |
851 | bytes_done[i] = td->bytes_done[i]; | |
2e1df07d JA |
852 | |
853 | if (in_ramp_time(td)) | |
854 | td_set_runstate(td, TD_RAMP); | |
855 | else | |
856 | td_set_runstate(td, TD_RUNNING); | |
857 | ||
3e260a46 JA |
858 | lat_target_init(td); |
859 | ||
1e564979 JE |
860 | total_bytes = td->o.size; |
861 | /* | |
862 | * Allow random overwrite workloads to write up to io_limit | |
863 | * before starting verification phase as 'size' doesn't apply. | |
864 | */ | |
865 | if (td_write(td) && td_random(td) && td->o.norandommap) | |
866 | total_bytes = max(total_bytes, (uint64_t) td->o.io_limit); | |
78a6469c JA |
867 | /* |
868 | * If verify_backlog is enabled, we'll run the verify in this | |
869 | * handler as well. For that case, we may need up to twice the | |
870 | * amount of bytes. | |
871 | */ | |
78a6469c JA |
872 | if (td->o.verify != VERIFY_NONE && |
873 | (td_write(td) && td->o.verify_backlog)) | |
c2703bf3 JA |
874 | total_bytes += td->o.size; |
875 | ||
82a90686 | 876 | /* In trimwrite mode, each byte is trimmed and then written, so |
0e4dd95c | 877 | * allow total_bytes to be twice as big */ |
82a90686 | 878 | if (td_trimwrite(td)) |
0e4dd95c DE |
879 | total_bytes += td->total_io_size; |
880 | ||
f7078f7b | 881 | while ((td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || |
e28dd2cf | 882 | (!flist_empty(&td->trim_list)) || !io_issue_bytes_exceeded(td) || |
c04e4661 | 883 | td->o.time_based) { |
2e1df07d | 884 | struct timeval comp_time; |
2e1df07d | 885 | struct io_u *io_u; |
e9d512d8 | 886 | int full; |
2e1df07d JA |
887 | enum fio_ddir ddir; |
888 | ||
c97f1ad6 JA |
889 | check_update_rusage(td); |
890 | ||
7d7803fa | 891 | if (td->terminate || td->done) |
2e1df07d JA |
892 | break; |
893 | ||
894 | update_tv_cache(td); | |
895 | ||
896 | if (runtime_exceeded(td, &td->tv_cache)) { | |
897 | __update_tv_cache(td); | |
898 | if (runtime_exceeded(td, &td->tv_cache)) { | |
ebea2133 | 899 | fio_mark_td_terminate(td); |
2e1df07d JA |
900 | break; |
901 | } | |
902 | } | |
903 | ||
9e684a49 DE |
904 | if (flow_threshold_exceeded(td)) |
905 | continue; | |
906 | ||
f1a32461 JA |
907 | /* |
908 | * Break if we exceeded the bytes. The exception is time | |
909 | * based runs, but we still need to break out of the loop | |
910 | * for those to run verification, if enabled. | |
911 | */ | |
912 | if (bytes_issued >= total_bytes && | |
913 | (!td->o.time_based || | |
914 | (td->o.time_based && td->o.verify != VERIFY_NONE))) | |
20876c53 JC |
915 | break; |
916 | ||
2e1df07d | 917 | io_u = get_io_u(td); |
002fe734 JA |
918 | if (IS_ERR_OR_NULL(io_u)) { |
919 | int err = PTR_ERR(io_u); | |
920 | ||
921 | io_u = NULL; | |
922 | if (err == -EBUSY) { | |
923 | ret = FIO_Q_BUSY; | |
924 | goto reap; | |
925 | } | |
3e260a46 JA |
926 | if (td->o.latency_target) |
927 | goto reap; | |
2e1df07d | 928 | break; |
3e260a46 | 929 | } |
2e1df07d JA |
930 | |
931 | ddir = io_u->ddir; | |
932 | ||
933 | /* | |
82af2a7c JA |
934 | * Add verification end_io handler if: |
935 | * - Asked to verify (!td_rw(td)) | |
936 | * - Or the io_u is from our verify list (mixed write/ver) | |
2e1df07d JA |
937 | */ |
938 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ && | |
82af2a7c | 939 | ((io_u->flags & IO_U_F_VER_LIST) || !td_rw(td))) { |
c4b6117b PV |
940 | |
941 | if (!td->o.verify_pattern_bytes) { | |
d6b72507 | 942 | io_u->rand_seed = __rand(&td->verify_state); |
c4b6117b | 943 | if (sizeof(int) != sizeof(long *)) |
d6b72507 | 944 | io_u->rand_seed *= __rand(&td->verify_state); |
c4b6117b PV |
945 | } |
946 | ||
ca09be4b JA |
947 | if (verify_state_should_stop(td, io_u)) { |
948 | put_io_u(td, io_u); | |
949 | break; | |
950 | } | |
951 | ||
2e1df07d JA |
952 | if (td->o.verify_async) |
953 | io_u->end_io = verify_io_u_async; | |
954 | else | |
955 | io_u->end_io = verify_io_u; | |
956 | td_set_runstate(td, TD_VERIFYING); | |
957 | } else if (in_ramp_time(td)) | |
958 | td_set_runstate(td, TD_RAMP); | |
959 | else | |
960 | td_set_runstate(td, TD_RUNNING); | |
961 | ||
9a50c5c5 | 962 | /* |
f9401285 JA |
963 | * Always log IO before it's issued, so we know the specific |
964 | * order of it. The logged unit will track when the IO has | |
965 | * completed. | |
9a50c5c5 | 966 | */ |
c4b6117b PV |
967 | if (td_write(td) && io_u->ddir == DDIR_WRITE && |
968 | td->o.do_verify && | |
969 | td->o.verify != VERIFY_NONE && | |
f9401285 | 970 | !td->o.experimental_verify) |
c4b6117b PV |
971 | log_io_piece(td, io_u); |
972 | ||
a9da8ab2 | 973 | if (td->o.io_submit_mode == IO_MODE_OFFLOAD) { |
0c5df5f9 JA |
974 | const unsigned long blen = io_u->xfer_buflen; |
975 | const enum fio_ddir ddir = acct_ddir(io_u); | |
976 | ||
a9da8ab2 JA |
977 | if (td->error) |
978 | break; | |
0c5df5f9 | 979 | |
26de50cf JA |
980 | workqueue_enqueue(&td->io_wq, &io_u->work); |
981 | ret = FIO_Q_QUEUED; | |
50a8ce86 | 982 | |
26de50cf | 983 | if (ddir_rw(ddir)) { |
0c5df5f9 JA |
984 | td->io_issues[ddir]++; |
985 | td->io_issue_bytes[ddir] += blen; | |
986 | td->rate_io_issue_bytes[ddir] += blen; | |
987 | } | |
988 | ||
50a8ce86 D |
989 | if (should_check_rate(td)) |
990 | td->rate_next_io_time[ddir] = usec_for_io(td, ddir); | |
991 | ||
a9da8ab2 JA |
992 | } else { |
993 | ret = td_io_queue(td, io_u); | |
2e1df07d | 994 | |
50a8ce86 D |
995 | if (should_check_rate(td)) |
996 | td->rate_next_io_time[ddir] = usec_for_io(td, ddir); | |
997 | ||
fd727d9d | 998 | if (io_queue_event(td, io_u, &ret, ddir, &bytes_issued, 0, &comp_time)) |
a9da8ab2 | 999 | break; |
2e1df07d | 1000 | |
a9da8ab2 JA |
1001 | /* |
1002 | * See if we need to complete some commands. Note that | |
1003 | * we can get BUSY even without IO queued, if the | |
1004 | * system is resource starved. | |
1005 | */ | |
3e260a46 | 1006 | reap: |
a9da8ab2 JA |
1007 | full = queue_full(td) || |
1008 | (ret == FIO_Q_BUSY && td->cur_depth); | |
82407585 | 1009 | if (full || io_in_polling(td)) |
a9da8ab2 JA |
1010 | ret = wait_for_completions(td, &comp_time); |
1011 | } | |
2e1df07d JA |
1012 | if (ret < 0) |
1013 | break; | |
55312f9f | 1014 | if (!ddir_rw_sum(td->bytes_done) && |
9b87f09b | 1015 | !td_ioengine_flagged(td, FIO_NOIO)) |
2e1df07d JA |
1016 | continue; |
1017 | ||
55312f9f JA |
1018 | if (!in_ramp_time(td) && should_check_rate(td)) { |
1019 | if (check_min_rate(td, &comp_time)) { | |
f9cafb12 | 1020 | if (exitall_on_terminate || td->o.exitall_error) |
2e1df07d JA |
1021 | fio_terminate_threads(td->groupid); |
1022 | td_verror(td, EIO, "check_min_rate"); | |
1023 | break; | |
1024 | } | |
1025 | } | |
3e260a46 JA |
1026 | if (!in_ramp_time(td) && td->o.latency_target) |
1027 | lat_target_check(td); | |
e155cb64 | 1028 | |
2e1df07d JA |
1029 | if (td->o.thinktime) { |
1030 | unsigned long long b; | |
1031 | ||
342f4be4 | 1032 | b = ddir_rw_sum(td->io_blocks); |
2e1df07d JA |
1033 | if (!(b % td->o.thinktime_blocks)) { |
1034 | int left; | |
1035 | ||
002e7183 JA |
1036 | io_u_quiesce(td); |
1037 | ||
2e1df07d JA |
1038 | if (td->o.thinktime_spin) |
1039 | usec_spin(td->o.thinktime_spin); | |
1040 | ||
1041 | left = td->o.thinktime - td->o.thinktime_spin; | |
1042 | if (left) | |
1043 | usec_sleep(td, left); | |
1044 | } | |
1045 | } | |
1046 | } | |
1047 | ||
c97f1ad6 JA |
1048 | check_update_rusage(td); |
1049 | ||
2e1df07d | 1050 | if (td->trim_entries) |
4e0a8fa2 | 1051 | log_err("fio: %lu trim entries leaked?\n", td->trim_entries); |
2e1df07d JA |
1052 | |
1053 | if (td->o.fill_device && td->error == ENOSPC) { | |
1054 | td->error = 0; | |
ebea2133 | 1055 | fio_mark_td_terminate(td); |
2e1df07d JA |
1056 | } |
1057 | if (!td->error) { | |
1058 | struct fio_file *f; | |
1059 | ||
a9da8ab2 JA |
1060 | if (td->o.io_submit_mode == IO_MODE_OFFLOAD) { |
1061 | workqueue_flush(&td->io_wq); | |
1062 | i = 0; | |
1063 | } else | |
1064 | i = td->cur_depth; | |
1065 | ||
2e1df07d | 1066 | if (i) { |
55312f9f | 1067 | ret = io_u_queued_complete(td, i); |
2e1df07d JA |
1068 | if (td->o.fill_device && td->error == ENOSPC) |
1069 | td->error = 0; | |
1070 | } | |
1071 | ||
1072 | if (should_fsync(td) && td->o.end_fsync) { | |
1073 | td_set_runstate(td, TD_FSYNCING); | |
1074 | ||
1075 | for_each_file(td, f, i) { | |
61ee0f86 | 1076 | if (!fio_file_fsync(td, f)) |
2e1df07d | 1077 | continue; |
61ee0f86 JA |
1078 | |
1079 | log_err("fio: end_fsync failed for file %s\n", | |
1080 | f->file_name); | |
2e1df07d JA |
1081 | } |
1082 | } | |
1083 | } else | |
1084 | cleanup_pending_aio(td); | |
1085 | ||
1086 | /* | |
1087 | * stop job if we failed doing any IO | |
1088 | */ | |
342f4be4 | 1089 | if (!ddir_rw_sum(td->this_io_bytes)) |
2e1df07d | 1090 | td->done = 1; |
100f49f1 | 1091 | |
95b03be0 JA |
1092 | for (i = 0; i < DDIR_RWDIR_CNT; i++) |
1093 | bytes_done[i] = td->bytes_done[i] - bytes_done[i]; | |
2e1df07d JA |
1094 | } |
1095 | ||
94a6e1bb JA |
1096 | static void free_file_completion_logging(struct thread_data *td) |
1097 | { | |
1098 | struct fio_file *f; | |
1099 | unsigned int i; | |
1100 | ||
1101 | for_each_file(td, f, i) { | |
1102 | if (!f->last_write_comp) | |
1103 | break; | |
1104 | sfree(f->last_write_comp); | |
1105 | } | |
1106 | } | |
1107 | ||
1108 | static int init_file_completion_logging(struct thread_data *td, | |
1109 | unsigned int depth) | |
1110 | { | |
1111 | struct fio_file *f; | |
1112 | unsigned int i; | |
1113 | ||
1114 | if (td->o.verify == VERIFY_NONE || !td->o.verify_state_save) | |
1115 | return 0; | |
1116 | ||
1117 | for_each_file(td, f, i) { | |
1118 | f->last_write_comp = scalloc(depth, sizeof(uint64_t)); | |
1119 | if (!f->last_write_comp) | |
1120 | goto cleanup; | |
1121 | } | |
1122 | ||
1123 | return 0; | |
1124 | ||
1125 | cleanup: | |
1126 | free_file_completion_logging(td); | |
1127 | log_err("fio: failed to alloc write comp data\n"); | |
1128 | return 1; | |
1129 | } | |
1130 | ||
2e1df07d JA |
1131 | static void cleanup_io_u(struct thread_data *td) |
1132 | { | |
2e1df07d JA |
1133 | struct io_u *io_u; |
1134 | ||
2ae0b204 | 1135 | while ((io_u = io_u_qpop(&td->io_u_freelist)) != NULL) { |
c73ed246 JA |
1136 | |
1137 | if (td->io_ops->io_u_free) | |
1138 | td->io_ops->io_u_free(td, io_u); | |
1139 | ||
2e1df07d JA |
1140 | fio_memfree(io_u, sizeof(*io_u)); |
1141 | } | |
1142 | ||
1143 | free_io_mem(td); | |
2ae0b204 JA |
1144 | |
1145 | io_u_rexit(&td->io_u_requeues); | |
1146 | io_u_qexit(&td->io_u_freelist); | |
1147 | io_u_qexit(&td->io_u_all); | |
ca09be4b | 1148 | |
94a6e1bb | 1149 | free_file_completion_logging(td); |
2e1df07d JA |
1150 | } |
1151 | ||
1152 | static int init_io_u(struct thread_data *td) | |
1153 | { | |
1154 | struct io_u *io_u; | |
9c42684e | 1155 | unsigned int max_bs, min_write; |
2e1df07d | 1156 | int cl_align, i, max_units; |
2ae0b204 | 1157 | int data_xfer = 1, err; |
2e1df07d JA |
1158 | char *p; |
1159 | ||
1160 | max_units = td->o.iodepth; | |
74f4b020 | 1161 | max_bs = td_max_bs(td); |
9c42684e | 1162 | min_write = td->o.min_bs[DDIR_WRITE]; |
2e1df07d JA |
1163 | td->orig_buffer_size = (unsigned long long) max_bs |
1164 | * (unsigned long long) max_units; | |
1165 | ||
9b87f09b | 1166 | if (td_ioengine_flagged(td, FIO_NOIO) || !(td_read(td) || td_write(td))) |
59d8d0f5 JA |
1167 | data_xfer = 0; |
1168 | ||
2ae0b204 JA |
1169 | err = 0; |
1170 | err += io_u_rinit(&td->io_u_requeues, td->o.iodepth); | |
1171 | err += io_u_qinit(&td->io_u_freelist, td->o.iodepth); | |
1172 | err += io_u_qinit(&td->io_u_all, td->o.iodepth); | |
1173 | ||
1174 | if (err) { | |
1175 | log_err("fio: failed setting up IO queues\n"); | |
1176 | return 1; | |
1177 | } | |
1178 | ||
fd8a09b8 | 1179 | /* |
1180 | * if we may later need to do address alignment, then add any | |
1181 | * possible adjustment here so that we don't cause a buffer | |
1182 | * overflow later. this adjustment may be too much if we get | |
1183 | * lucky and the allocator gives us an aligned address. | |
1184 | */ | |
d01612f3 | 1185 | if (td->o.odirect || td->o.mem_align || td->o.oatomic || |
9b87f09b | 1186 | td_ioengine_flagged(td, FIO_RAWIO)) |
fd8a09b8 | 1187 | td->orig_buffer_size += page_mask + td->o.mem_align; |
1188 | ||
2e1df07d JA |
1189 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { |
1190 | unsigned long bs; | |
1191 | ||
1192 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; | |
1193 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); | |
1194 | } | |
1195 | ||
1196 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { | |
1197 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
1198 | return 1; | |
1199 | } | |
1200 | ||
59d8d0f5 | 1201 | if (data_xfer && allocate_io_mem(td)) |
2e1df07d JA |
1202 | return 1; |
1203 | ||
d01612f3 | 1204 | if (td->o.odirect || td->o.mem_align || td->o.oatomic || |
9b87f09b | 1205 | td_ioengine_flagged(td, FIO_RAWIO)) |
2e1df07d JA |
1206 | p = PAGE_ALIGN(td->orig_buffer) + td->o.mem_align; |
1207 | else | |
1208 | p = td->orig_buffer; | |
1209 | ||
1210 | cl_align = os_cache_line_size(); | |
1211 | ||
1212 | for (i = 0; i < max_units; i++) { | |
1213 | void *ptr; | |
1214 | ||
1215 | if (td->terminate) | |
1216 | return 1; | |
1217 | ||
1218 | ptr = fio_memalign(cl_align, sizeof(*io_u)); | |
1219 | if (!ptr) { | |
1220 | log_err("fio: unable to allocate aligned memory\n"); | |
1221 | break; | |
1222 | } | |
1223 | ||
1224 | io_u = ptr; | |
1225 | memset(io_u, 0, sizeof(*io_u)); | |
2ae0b204 | 1226 | INIT_FLIST_HEAD(&io_u->verify_list); |
2e1df07d JA |
1227 | dprint(FD_MEM, "io_u alloc %p, index %u\n", io_u, i); |
1228 | ||
59d8d0f5 | 1229 | if (data_xfer) { |
2e1df07d JA |
1230 | io_u->buf = p; |
1231 | dprint(FD_MEM, "io_u %p, mem %p\n", io_u, io_u->buf); | |
1232 | ||
1233 | if (td_write(td)) | |
9c42684e | 1234 | io_u_fill_buffer(td, io_u, min_write, max_bs); |
2e1df07d JA |
1235 | if (td_write(td) && td->o.verify_pattern_bytes) { |
1236 | /* | |
1237 | * Fill the buffer with the pattern if we are | |
1238 | * going to be doing writes. | |
1239 | */ | |
ce35b1ec | 1240 | fill_verify_pattern(td, io_u->buf, max_bs, io_u, 0, 0); |
2e1df07d JA |
1241 | } |
1242 | } | |
1243 | ||
1244 | io_u->index = i; | |
1245 | io_u->flags = IO_U_F_FREE; | |
2ae0b204 JA |
1246 | io_u_qpush(&td->io_u_freelist, io_u); |
1247 | ||
1248 | /* | |
1249 | * io_u never leaves this stack, used for iteration of all | |
1250 | * io_u buffers. | |
1251 | */ | |
1252 | io_u_qpush(&td->io_u_all, io_u); | |
c73ed246 JA |
1253 | |
1254 | if (td->io_ops->io_u_init) { | |
1255 | int ret = td->io_ops->io_u_init(td, io_u); | |
1256 | ||
1257 | if (ret) { | |
1258 | log_err("fio: failed to init engine data: %d\n", ret); | |
1259 | return 1; | |
1260 | } | |
1261 | } | |
1262 | ||
2e1df07d JA |
1263 | p += max_bs; |
1264 | } | |
1265 | ||
94a6e1bb JA |
1266 | if (init_file_completion_logging(td, max_units)) |
1267 | return 1; | |
ca09be4b | 1268 | |
2e1df07d JA |
1269 | return 0; |
1270 | } | |
1271 | ||
1272 | static int switch_ioscheduler(struct thread_data *td) | |
1273 | { | |
db815fb3 | 1274 | #ifdef FIO_HAVE_IOSCHED_SWITCH |
2e1df07d JA |
1275 | char tmp[256], tmp2[128]; |
1276 | FILE *f; | |
1277 | int ret; | |
1278 | ||
9b87f09b | 1279 | if (td_ioengine_flagged(td, FIO_DISKLESSIO)) |
2e1df07d JA |
1280 | return 0; |
1281 | ||
1282 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); | |
1283 | ||
1284 | f = fopen(tmp, "r+"); | |
1285 | if (!f) { | |
1286 | if (errno == ENOENT) { | |
1287 | log_err("fio: os or kernel doesn't support IO scheduler" | |
1288 | " switching\n"); | |
1289 | return 0; | |
1290 | } | |
1291 | td_verror(td, errno, "fopen iosched"); | |
1292 | return 1; | |
1293 | } | |
1294 | ||
1295 | /* | |
1296 | * Set io scheduler. | |
1297 | */ | |
1298 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); | |
1299 | if (ferror(f) || ret != 1) { | |
1300 | td_verror(td, errno, "fwrite"); | |
1301 | fclose(f); | |
1302 | return 1; | |
1303 | } | |
1304 | ||
1305 | rewind(f); | |
1306 | ||
1307 | /* | |
1308 | * Read back and check that the selected scheduler is now the default. | |
1309 | */ | |
b44b9e45 | 1310 | memset(tmp, 0, sizeof(tmp)); |
49c6f33d | 1311 | ret = fread(tmp, sizeof(tmp), 1, f); |
2e1df07d JA |
1312 | if (ferror(f) || ret < 0) { |
1313 | td_verror(td, errno, "fread"); | |
1314 | fclose(f); | |
1315 | return 1; | |
1316 | } | |
b44b9e45 TK |
1317 | /* |
1318 | * either a list of io schedulers or "none\n" is expected. | |
1319 | */ | |
1320 | tmp[strlen(tmp) - 1] = '\0'; | |
49c6f33d | 1321 | |
67f28a8c TK |
1322 | /* |
1323 | * Write to "none" entry doesn't fail, so check the result here. | |
1324 | */ | |
1325 | if (!strcmp(tmp, "none")) { | |
1326 | log_err("fio: io scheduler is not tunable\n"); | |
1327 | fclose(f); | |
1328 | return 0; | |
1329 | } | |
2e1df07d JA |
1330 | |
1331 | sprintf(tmp2, "[%s]", td->o.ioscheduler); | |
1332 | if (!strstr(tmp, tmp2)) { | |
1333 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); | |
1334 | td_verror(td, EINVAL, "iosched_switch"); | |
1335 | fclose(f); | |
1336 | return 1; | |
1337 | } | |
1338 | ||
1339 | fclose(f); | |
1340 | return 0; | |
db815fb3 TK |
1341 | #else |
1342 | return 0; | |
1343 | #endif | |
2e1df07d JA |
1344 | } |
1345 | ||
e39c0676 | 1346 | static bool keep_running(struct thread_data *td) |
2e1df07d | 1347 | { |
77731b29 JA |
1348 | unsigned long long limit; |
1349 | ||
2e1df07d | 1350 | if (td->done) |
e39c0676 | 1351 | return false; |
2e1df07d | 1352 | if (td->o.time_based) |
e39c0676 | 1353 | return true; |
2e1df07d JA |
1354 | if (td->o.loops) { |
1355 | td->o.loops--; | |
e39c0676 | 1356 | return true; |
2e1df07d | 1357 | } |
3939fe85 | 1358 | if (exceeds_number_ios(td)) |
e39c0676 | 1359 | return false; |
26251d8d | 1360 | |
77731b29 JA |
1361 | if (td->o.io_limit) |
1362 | limit = td->o.io_limit; | |
1363 | else | |
1364 | limit = td->o.size; | |
1365 | ||
1366 | if (limit != -1ULL && ddir_rw_sum(td->io_bytes) < limit) { | |
5bd5f71a JA |
1367 | uint64_t diff; |
1368 | ||
1369 | /* | |
1370 | * If the difference is less than the minimum IO size, we | |
1371 | * are done. | |
1372 | */ | |
77731b29 | 1373 | diff = limit - ddir_rw_sum(td->io_bytes); |
74f4b020 | 1374 | if (diff < td_max_bs(td)) |
e39c0676 | 1375 | return false; |
5bd5f71a | 1376 | |
543e2e9d | 1377 | if (fio_files_done(td) && !td->o.io_limit) |
e39c0676 | 1378 | return false; |
002fe734 | 1379 | |
e39c0676 | 1380 | return true; |
5bd5f71a | 1381 | } |
2e1df07d | 1382 | |
e39c0676 | 1383 | return false; |
2e1df07d JA |
1384 | } |
1385 | ||
ce486495 | 1386 | static int exec_string(struct thread_options *o, const char *string, const char *mode) |
2e1df07d | 1387 | { |
6c9ce469 | 1388 | size_t newlen = strlen(string) + strlen(o->name) + strlen(mode) + 9 + 1; |
f491a907 | 1389 | int ret; |
2e1df07d JA |
1390 | char *str; |
1391 | ||
1392 | str = malloc(newlen); | |
ce486495 | 1393 | sprintf(str, "%s &> %s.%s.txt", string, o->name, mode); |
2e1df07d | 1394 | |
ce486495 | 1395 | log_info("%s : Saving output of %s in %s.%s.txt\n",o->name, mode, o->name, mode); |
2e1df07d JA |
1396 | ret = system(str); |
1397 | if (ret == -1) | |
1398 | log_err("fio: exec of cmd <%s> failed\n", str); | |
1399 | ||
1400 | free(str); | |
1401 | return ret; | |
1402 | } | |
1403 | ||
62167762 JC |
1404 | /* |
1405 | * Dry run to compute correct state of numberio for verification. | |
1406 | */ | |
1407 | static uint64_t do_dry_run(struct thread_data *td) | |
1408 | { | |
62167762 JC |
1409 | td_set_runstate(td, TD_RUNNING); |
1410 | ||
1411 | while ((td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || | |
e28dd2cf | 1412 | (!flist_empty(&td->trim_list)) || !io_complete_bytes_exceeded(td)) { |
62167762 JC |
1413 | struct io_u *io_u; |
1414 | int ret; | |
1415 | ||
1416 | if (td->terminate || td->done) | |
1417 | break; | |
1418 | ||
1419 | io_u = get_io_u(td); | |
99955d3d | 1420 | if (IS_ERR_OR_NULL(io_u)) |
62167762 JC |
1421 | break; |
1422 | ||
1651e431 | 1423 | io_u_set(td, io_u, IO_U_F_FLIGHT); |
62167762 JC |
1424 | io_u->error = 0; |
1425 | io_u->resid = 0; | |
1426 | if (ddir_rw(acct_ddir(io_u))) | |
1427 | td->io_issues[acct_ddir(io_u)]++; | |
1428 | if (ddir_rw(io_u->ddir)) { | |
1429 | io_u_mark_depth(td, 1); | |
1430 | td->ts.total_io_u[io_u->ddir]++; | |
1431 | } | |
1432 | ||
2e63e96b PV |
1433 | if (td_write(td) && io_u->ddir == DDIR_WRITE && |
1434 | td->o.do_verify && | |
1435 | td->o.verify != VERIFY_NONE && | |
1436 | !td->o.experimental_verify) | |
1437 | log_io_piece(td, io_u); | |
1438 | ||
55312f9f | 1439 | ret = io_u_sync_complete(td, io_u); |
62167762 JC |
1440 | (void) ret; |
1441 | } | |
1442 | ||
55312f9f | 1443 | return td->bytes_done[DDIR_WRITE] + td->bytes_done[DDIR_TRIM]; |
62167762 JC |
1444 | } |
1445 | ||
24660963 JA |
1446 | struct fork_data { |
1447 | struct thread_data *td; | |
1448 | struct sk_out *sk_out; | |
1449 | }; | |
1450 | ||
2e1df07d JA |
1451 | /* |
1452 | * Entry point for the thread based jobs. The process based jobs end up | |
1453 | * here as well, after a little setup. | |
1454 | */ | |
1455 | static void *thread_main(void *data) | |
1456 | { | |
24660963 | 1457 | struct fork_data *fd = data; |
95603b74 | 1458 | unsigned long long elapsed_us[DDIR_RWDIR_CNT] = { 0, }; |
24660963 | 1459 | struct thread_data *td = fd->td; |
4896473e | 1460 | struct thread_options *o = &td->o; |
24660963 | 1461 | struct sk_out *sk_out = fd->sk_out; |
ca0122d8 | 1462 | int deadlock_loop_cnt; |
2e1df07d | 1463 | int clear_state; |
28727df7 | 1464 | int ret; |
2e1df07d | 1465 | |
24660963 JA |
1466 | sk_out_assign(sk_out); |
1467 | free(fd); | |
1468 | ||
4896473e | 1469 | if (!o->use_thread) { |
2e1df07d JA |
1470 | setsid(); |
1471 | td->pid = getpid(); | |
1472 | } else | |
1473 | td->pid = gettid(); | |
1474 | ||
4896473e | 1475 | fio_local_clock_init(o->use_thread); |
5d879392 | 1476 | |
2e1df07d JA |
1477 | dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); |
1478 | ||
122c7725 JA |
1479 | if (is_backend) |
1480 | fio_server_send_start(td); | |
1481 | ||
2e1df07d JA |
1482 | INIT_FLIST_HEAD(&td->io_log_list); |
1483 | INIT_FLIST_HEAD(&td->io_hist_list); | |
1484 | INIT_FLIST_HEAD(&td->verify_list); | |
1485 | INIT_FLIST_HEAD(&td->trim_list); | |
1ae83d45 | 1486 | INIT_FLIST_HEAD(&td->next_rand_list); |
2e1df07d JA |
1487 | td->io_hist_tree = RB_ROOT; |
1488 | ||
34febb23 | 1489 | ret = mutex_cond_init_pshared(&td->io_u_lock, &td->free_cond); |
f9e5b5ee | 1490 | if (ret) { |
34febb23 | 1491 | td_verror(td, ret, "mutex_cond_init_pshared"); |
f9e5b5ee JK |
1492 | goto err; |
1493 | } | |
34febb23 | 1494 | ret = cond_init_pshared(&td->verify_cond); |
f9e5b5ee | 1495 | if (ret) { |
34febb23 | 1496 | td_verror(td, ret, "mutex_cond_pshared"); |
f9e5b5ee JK |
1497 | goto err; |
1498 | } | |
2e1df07d JA |
1499 | |
1500 | td_set_runstate(td, TD_INITIALIZED); | |
1501 | dprint(FD_MUTEX, "up startup_mutex\n"); | |
1502 | fio_mutex_up(startup_mutex); | |
1503 | dprint(FD_MUTEX, "wait on td->mutex\n"); | |
1504 | fio_mutex_down(td->mutex); | |
1505 | dprint(FD_MUTEX, "done waiting on td->mutex\n"); | |
1506 | ||
2e1df07d JA |
1507 | /* |
1508 | * A new gid requires privilege, so we need to do this before setting | |
1509 | * the uid. | |
1510 | */ | |
4896473e | 1511 | if (o->gid != -1U && setgid(o->gid)) { |
2e1df07d JA |
1512 | td_verror(td, errno, "setgid"); |
1513 | goto err; | |
1514 | } | |
4896473e | 1515 | if (o->uid != -1U && setuid(o->uid)) { |
2e1df07d JA |
1516 | td_verror(td, errno, "setuid"); |
1517 | goto err; | |
1518 | } | |
1519 | ||
2354d810 JA |
1520 | /* |
1521 | * Do this early, we don't want the compress threads to be limited | |
1522 | * to the same CPUs as the IO workers. So do this before we set | |
1523 | * any potential CPU affinity | |
1524 | */ | |
1525 | if (iolog_compress_init(td, sk_out)) | |
1526 | goto err; | |
1527 | ||
2e1df07d JA |
1528 | /* |
1529 | * If we have a gettimeofday() thread, make sure we exclude that | |
1530 | * thread from this job | |
1531 | */ | |
4896473e JA |
1532 | if (o->gtod_cpu) |
1533 | fio_cpu_clear(&o->cpumask, o->gtod_cpu); | |
2e1df07d JA |
1534 | |
1535 | /* | |
1536 | * Set affinity first, in case it has an impact on the memory | |
1537 | * allocations. | |
1538 | */ | |
b2a9e649 | 1539 | if (fio_option_is_set(o, cpumask)) { |
c2acfbac | 1540 | if (o->cpus_allowed_policy == FIO_CPUS_SPLIT) { |
30cb4c65 | 1541 | ret = fio_cpus_split(&o->cpumask, td->thread_number - 1); |
c2acfbac JA |
1542 | if (!ret) { |
1543 | log_err("fio: no CPUs set\n"); | |
1544 | log_err("fio: Try increasing number of available CPUs\n"); | |
1545 | td_verror(td, EINVAL, "cpus_split"); | |
1546 | goto err; | |
1547 | } | |
1548 | } | |
28727df7 JA |
1549 | ret = fio_setaffinity(td->pid, o->cpumask); |
1550 | if (ret == -1) { | |
4896473e JA |
1551 | td_verror(td, errno, "cpu_set_affinity"); |
1552 | goto err; | |
1553 | } | |
2e1df07d JA |
1554 | } |
1555 | ||
67bf9823 | 1556 | #ifdef CONFIG_LIBNUMA |
d0b937ed | 1557 | /* numa node setup */ |
b2a9e649 JA |
1558 | if (fio_option_is_set(o, numa_cpunodes) || |
1559 | fio_option_is_set(o, numa_memnodes)) { | |
43522848 | 1560 | struct bitmask *mask; |
d0b937ed YR |
1561 | |
1562 | if (numa_available() < 0) { | |
1563 | td_verror(td, errno, "Does not support NUMA API\n"); | |
1564 | goto err; | |
1565 | } | |
1566 | ||
b2a9e649 | 1567 | if (fio_option_is_set(o, numa_cpunodes)) { |
43522848 DG |
1568 | mask = numa_parse_nodestring(o->numa_cpunodes); |
1569 | ret = numa_run_on_node_mask(mask); | |
1570 | numa_free_nodemask(mask); | |
d0b937ed YR |
1571 | if (ret == -1) { |
1572 | td_verror(td, errno, \ | |
1573 | "numa_run_on_node_mask failed\n"); | |
1574 | goto err; | |
1575 | } | |
1576 | } | |
1577 | ||
b2a9e649 | 1578 | if (fio_option_is_set(o, numa_memnodes)) { |
43522848 DG |
1579 | mask = NULL; |
1580 | if (o->numa_memnodes) | |
1581 | mask = numa_parse_nodestring(o->numa_memnodes); | |
1582 | ||
4896473e | 1583 | switch (o->numa_mem_mode) { |
d0b937ed | 1584 | case MPOL_INTERLEAVE: |
43522848 | 1585 | numa_set_interleave_mask(mask); |
d0b937ed YR |
1586 | break; |
1587 | case MPOL_BIND: | |
43522848 | 1588 | numa_set_membind(mask); |
d0b937ed YR |
1589 | break; |
1590 | case MPOL_LOCAL: | |
1591 | numa_set_localalloc(); | |
1592 | break; | |
1593 | case MPOL_PREFERRED: | |
4896473e | 1594 | numa_set_preferred(o->numa_mem_prefer_node); |
d0b937ed YR |
1595 | break; |
1596 | case MPOL_DEFAULT: | |
1597 | default: | |
1598 | break; | |
1599 | } | |
1600 | ||
43522848 DG |
1601 | if (mask) |
1602 | numa_free_nodemask(mask); | |
1603 | ||
d0b937ed YR |
1604 | } |
1605 | } | |
1606 | #endif | |
1607 | ||
9a3f1100 JA |
1608 | if (fio_pin_memory(td)) |
1609 | goto err; | |
1610 | ||
2e1df07d JA |
1611 | /* |
1612 | * May alter parameters that init_io_u() will use, so we need to | |
1613 | * do this first. | |
1614 | */ | |
1615 | if (init_iolog(td)) | |
1616 | goto err; | |
1617 | ||
1618 | if (init_io_u(td)) | |
1619 | goto err; | |
1620 | ||
4896473e | 1621 | if (o->verify_async && verify_async_init(td)) |
2e1df07d JA |
1622 | goto err; |
1623 | ||
27d74836 JA |
1624 | if (fio_option_is_set(o, ioprio) || |
1625 | fio_option_is_set(o, ioprio_class)) { | |
28727df7 JA |
1626 | ret = ioprio_set(IOPRIO_WHO_PROCESS, 0, o->ioprio_class, o->ioprio); |
1627 | if (ret == -1) { | |
2e1df07d JA |
1628 | td_verror(td, errno, "ioprio_set"); |
1629 | goto err; | |
1630 | } | |
1631 | } | |
1632 | ||
4896473e | 1633 | if (o->cgroup && cgroup_setup(td, cgroup_list, &cgroup_mnt)) |
2e1df07d JA |
1634 | goto err; |
1635 | ||
649c10c5 | 1636 | errno = 0; |
4896473e | 1637 | if (nice(o->nice) == -1 && errno != 0) { |
2e1df07d JA |
1638 | td_verror(td, errno, "nice"); |
1639 | goto err; | |
1640 | } | |
1641 | ||
4896473e | 1642 | if (o->ioscheduler && switch_ioscheduler(td)) |
2e1df07d JA |
1643 | goto err; |
1644 | ||
4896473e | 1645 | if (!o->create_serialize && setup_files(td)) |
2e1df07d JA |
1646 | goto err; |
1647 | ||
1648 | if (td_io_init(td)) | |
1649 | goto err; | |
1650 | ||
1651 | if (init_random_map(td)) | |
1652 | goto err; | |
1653 | ||
ce486495 | 1654 | if (o->exec_prerun && exec_string(o, o->exec_prerun, (const char *)"prerun")) |
4896473e | 1655 | goto err; |
2e1df07d | 1656 | |
4896473e | 1657 | if (o->pre_read) { |
2e1df07d JA |
1658 | if (pre_read_files(td) < 0) |
1659 | goto err; | |
1660 | } | |
1661 | ||
dc5bfbb2 JA |
1662 | fio_verify_init(td); |
1663 | ||
24660963 | 1664 | if (rate_submit_init(td, sk_out)) |
a9da8ab2 JA |
1665 | goto err; |
1666 | ||
3aea75b1 | 1667 | set_epoch_time(td, o->log_unix_epoch); |
44404c5a | 1668 | fio_getrusage(&td->ru_start); |
ac28d905 JA |
1669 | memcpy(&td->bw_sample_time, &td->epoch, sizeof(td->epoch)); |
1670 | memcpy(&td->iops_sample_time, &td->epoch, sizeof(td->epoch)); | |
1671 | ||
1672 | if (o->ratemin[DDIR_READ] || o->ratemin[DDIR_WRITE] || | |
1673 | o->ratemin[DDIR_TRIM]) { | |
1674 | memcpy(&td->lastrate[DDIR_READ], &td->bw_sample_time, | |
1675 | sizeof(td->bw_sample_time)); | |
1676 | memcpy(&td->lastrate[DDIR_WRITE], &td->bw_sample_time, | |
1677 | sizeof(td->bw_sample_time)); | |
1678 | memcpy(&td->lastrate[DDIR_TRIM], &td->bw_sample_time, | |
1679 | sizeof(td->bw_sample_time)); | |
1680 | } | |
1681 | ||
2e1df07d JA |
1682 | clear_state = 0; |
1683 | while (keep_running(td)) { | |
100f49f1 JA |
1684 | uint64_t verify_bytes; |
1685 | ||
2e1df07d | 1686 | fio_gettime(&td->start, NULL); |
2e1df07d JA |
1687 | memcpy(&td->tv_cache, &td->start, sizeof(td->start)); |
1688 | ||
39c1c323 | 1689 | if (clear_state) { |
ac28d905 | 1690 | clear_io_state(td, 0); |
2e1df07d | 1691 | |
39c1c323 | 1692 | if (o->unlink_each_loop && unlink_all_files(td)) |
1693 | break; | |
1694 | } | |
1695 | ||
2e1df07d JA |
1696 | prune_io_piece_log(td); |
1697 | ||
62167762 JC |
1698 | if (td->o.verify_only && (td_write(td) || td_rw(td))) |
1699 | verify_bytes = do_dry_run(td); | |
095196b1 | 1700 | else { |
95b03be0 JA |
1701 | uint64_t bytes_done[DDIR_RWDIR_CNT]; |
1702 | ||
1703 | do_io(td, bytes_done); | |
1704 | ||
1705 | if (!ddir_rw_sum(bytes_done)) { | |
095196b1 | 1706 | fio_mark_td_terminate(td); |
95b03be0 JA |
1707 | verify_bytes = 0; |
1708 | } else { | |
1709 | verify_bytes = bytes_done[DDIR_WRITE] + | |
1710 | bytes_done[DDIR_TRIM]; | |
1711 | } | |
095196b1 | 1712 | } |
2e1df07d | 1713 | |
49f0b8e0 JA |
1714 | /* |
1715 | * If we took too long to shut down, the main thread could | |
1716 | * already consider us reaped/exited. If that happens, break | |
1717 | * out and clean up. | |
1718 | */ | |
1719 | if (td->runstate >= TD_EXITED) | |
1720 | break; | |
1721 | ||
2e1df07d JA |
1722 | clear_state = 1; |
1723 | ||
40c666c8 JA |
1724 | /* |
1725 | * Make sure we've successfully updated the rusage stats | |
1726 | * before waiting on the stat mutex. Otherwise we could have | |
1727 | * the stat thread holding stat mutex and waiting for | |
1728 | * the rusage_sem, which would never get upped because | |
1729 | * this thread is waiting for the stat mutex. | |
1730 | */ | |
ca0122d8 | 1731 | deadlock_loop_cnt = 0; |
39d13e67 JA |
1732 | do { |
1733 | check_update_rusage(td); | |
1734 | if (!fio_mutex_down_trylock(stat_mutex)) | |
1735 | break; | |
1736 | usleep(1000); | |
ca0122d8 TT |
1737 | if (deadlock_loop_cnt++ > 5000) { |
1738 | log_err("fio seems to be stuck grabbing stat_mutex, forcibly exiting\n"); | |
43f248c4 | 1739 | td->error = EDEADLK; |
ca0122d8 TT |
1740 | goto err; |
1741 | } | |
39d13e67 | 1742 | } while (1); |
40c666c8 | 1743 | |
95603b74 BF |
1744 | if (td_read(td) && td->io_bytes[DDIR_READ]) |
1745 | update_runtime(td, elapsed_us, DDIR_READ); | |
1746 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) | |
1747 | update_runtime(td, elapsed_us, DDIR_WRITE); | |
1748 | if (td_trim(td) && td->io_bytes[DDIR_TRIM]) | |
1749 | update_runtime(td, elapsed_us, DDIR_TRIM); | |
e5437a07 VT |
1750 | fio_gettime(&td->start, NULL); |
1751 | fio_mutex_up(stat_mutex); | |
2e1df07d JA |
1752 | |
1753 | if (td->error || td->terminate) | |
1754 | break; | |
1755 | ||
4896473e JA |
1756 | if (!o->do_verify || |
1757 | o->verify == VERIFY_NONE || | |
9b87f09b | 1758 | td_ioengine_flagged(td, FIO_UNIDIR)) |
2e1df07d JA |
1759 | continue; |
1760 | ||
ac28d905 | 1761 | clear_io_state(td, 0); |
2e1df07d JA |
1762 | |
1763 | fio_gettime(&td->start, NULL); | |
1764 | ||
100f49f1 | 1765 | do_verify(td, verify_bytes); |
2e1df07d | 1766 | |
40c666c8 JA |
1767 | /* |
1768 | * See comment further up for why this is done here. | |
1769 | */ | |
1770 | check_update_rusage(td); | |
1771 | ||
e5437a07 | 1772 | fio_mutex_down(stat_mutex); |
95603b74 | 1773 | update_runtime(td, elapsed_us, DDIR_READ); |
e5437a07 VT |
1774 | fio_gettime(&td->start, NULL); |
1775 | fio_mutex_up(stat_mutex); | |
2e1df07d JA |
1776 | |
1777 | if (td->error || td->terminate) | |
1778 | break; | |
1779 | } | |
1780 | ||
2cea0b4c JA |
1781 | td_set_runstate(td, TD_FINISHING); |
1782 | ||
2e1df07d | 1783 | update_rusage_stat(td); |
2e1df07d | 1784 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
6eaf09d6 SL |
1785 | td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ]; |
1786 | td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE]; | |
1787 | td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM]; | |
2e1df07d | 1788 | |
ca09be4b | 1789 | if (td->o.verify_state_save && !(td->flags & TD_F_VSTATE_SAVED) && |
d264264a JA |
1790 | (td->o.verify != VERIFY_NONE && td_write(td))) |
1791 | verify_save_state(td->thread_number); | |
ca09be4b | 1792 | |
9a3f1100 JA |
1793 | fio_unpin_memory(td); |
1794 | ||
a47591e4 | 1795 | td_writeout_logs(td, true); |
2e1df07d | 1796 | |
155f2f02 | 1797 | iolog_compress_exit(td); |
103b174e | 1798 | rate_submit_exit(td); |
aee2ab67 | 1799 | |
4896473e | 1800 | if (o->exec_postrun) |
ce486495 | 1801 | exec_string(o, o->exec_postrun, (const char *)"postrun"); |
2e1df07d | 1802 | |
f9cafb12 | 1803 | if (exitall_on_terminate || (o->exitall_error && td->error)) |
2e1df07d JA |
1804 | fio_terminate_threads(td->groupid); |
1805 | ||
1806 | err: | |
1807 | if (td->error) | |
1808 | log_info("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, | |
1809 | td->verror); | |
1810 | ||
4896473e | 1811 | if (o->verify_async) |
2e1df07d JA |
1812 | verify_async_exit(td); |
1813 | ||
1814 | close_and_free_files(td); | |
2e1df07d | 1815 | cleanup_io_u(td); |
32dbca2c | 1816 | close_ioengine(td); |
2e1df07d | 1817 | cgroup_shutdown(td, &cgroup_mnt); |
ca09be4b | 1818 | verify_free_state(td); |
2e1df07d | 1819 | |
7c4d0fb7 JA |
1820 | if (td->zone_state_index) { |
1821 | int i; | |
1822 | ||
1823 | for (i = 0; i < DDIR_RWDIR_CNT; i++) | |
1824 | free(td->zone_state_index[i]); | |
1825 | free(td->zone_state_index); | |
1826 | td->zone_state_index = NULL; | |
1827 | } | |
1828 | ||
b2a9e649 | 1829 | if (fio_option_is_set(o, cpumask)) { |
8a1db9a1 JA |
1830 | ret = fio_cpuset_exit(&o->cpumask); |
1831 | if (ret) | |
1832 | td_verror(td, ret, "fio_cpuset_exit"); | |
2e1df07d JA |
1833 | } |
1834 | ||
1835 | /* | |
1836 | * do this very late, it will log file closing as well | |
1837 | */ | |
4896473e | 1838 | if (o->write_iolog_file) |
2e1df07d JA |
1839 | write_iolog_close(td); |
1840 | ||
ea66e04f JA |
1841 | fio_mutex_remove(td->mutex); |
1842 | td->mutex = NULL; | |
1843 | ||
2e1df07d | 1844 | td_set_runstate(td, TD_EXITED); |
fda2cfac JA |
1845 | |
1846 | /* | |
1847 | * Do this last after setting our runstate to exited, so we | |
1848 | * know that the stat thread is signaled. | |
1849 | */ | |
1850 | check_update_rusage(td); | |
1851 | ||
24660963 | 1852 | sk_out_drop(); |
e43606c2 | 1853 | return (void *) (uintptr_t) td->error; |
2e1df07d JA |
1854 | } |
1855 | ||
cba5460c JA |
1856 | static void dump_td_info(struct thread_data *td) |
1857 | { | |
a507505d JA |
1858 | log_err("fio: job '%s' (state=%d) hasn't exited in %lu seconds, it " |
1859 | "appears to be stuck. Doing forceful exit of this job.\n", | |
1860 | td->o.name, td->runstate, | |
cba5460c JA |
1861 | (unsigned long) time_since_now(&td->terminate_time)); |
1862 | } | |
1863 | ||
2e1df07d JA |
1864 | /* |
1865 | * Run over the job map and reap the threads that have exited, if any. | |
1866 | */ | |
1867 | static void reap_threads(unsigned int *nr_running, unsigned int *t_rate, | |
1868 | unsigned int *m_rate) | |
1869 | { | |
1870 | struct thread_data *td; | |
1871 | unsigned int cputhreads, realthreads, pending; | |
1872 | int i, status, ret; | |
1873 | ||
1874 | /* | |
1875 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1876 | */ | |
1877 | realthreads = pending = cputhreads = 0; | |
1878 | for_each_td(td, i) { | |
1879 | int flags = 0; | |
1880 | ||
1881 | /* | |
1882 | * ->io_ops is NULL for a thread that has closed its | |
1883 | * io engine | |
1884 | */ | |
1885 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) | |
1886 | cputhreads++; | |
1887 | else | |
1888 | realthreads++; | |
1889 | ||
1890 | if (!td->pid) { | |
1891 | pending++; | |
1892 | continue; | |
1893 | } | |
1894 | if (td->runstate == TD_REAPED) | |
1895 | continue; | |
1896 | if (td->o.use_thread) { | |
1897 | if (td->runstate == TD_EXITED) { | |
1898 | td_set_runstate(td, TD_REAPED); | |
1899 | goto reaped; | |
1900 | } | |
1901 | continue; | |
1902 | } | |
1903 | ||
1904 | flags = WNOHANG; | |
1905 | if (td->runstate == TD_EXITED) | |
1906 | flags = 0; | |
1907 | ||
1908 | /* | |
1909 | * check if someone quit or got killed in an unusual way | |
1910 | */ | |
1911 | ret = waitpid(td->pid, &status, flags); | |
1912 | if (ret < 0) { | |
1913 | if (errno == ECHILD) { | |
1914 | log_err("fio: pid=%d disappeared %d\n", | |
1915 | (int) td->pid, td->runstate); | |
a5e371a6 | 1916 | td->sig = ECHILD; |
2e1df07d JA |
1917 | td_set_runstate(td, TD_REAPED); |
1918 | goto reaped; | |
1919 | } | |
1920 | perror("waitpid"); | |
1921 | } else if (ret == td->pid) { | |
1922 | if (WIFSIGNALED(status)) { | |
1923 | int sig = WTERMSIG(status); | |
1924 | ||
36d80bc7 | 1925 | if (sig != SIGTERM && sig != SIGUSR2) |
2e1df07d JA |
1926 | log_err("fio: pid=%d, got signal=%d\n", |
1927 | (int) td->pid, sig); | |
a5e371a6 | 1928 | td->sig = sig; |
2e1df07d JA |
1929 | td_set_runstate(td, TD_REAPED); |
1930 | goto reaped; | |
1931 | } | |
1932 | if (WIFEXITED(status)) { | |
1933 | if (WEXITSTATUS(status) && !td->error) | |
1934 | td->error = WEXITSTATUS(status); | |
1935 | ||
1936 | td_set_runstate(td, TD_REAPED); | |
1937 | goto reaped; | |
1938 | } | |
1939 | } | |
1940 | ||
cba5460c JA |
1941 | /* |
1942 | * If the job is stuck, do a forceful timeout of it and | |
1943 | * move on. | |
1944 | */ | |
1945 | if (td->terminate && | |
2c45a4ac | 1946 | td->runstate < TD_FSYNCING && |
cba5460c JA |
1947 | time_since_now(&td->terminate_time) >= FIO_REAP_TIMEOUT) { |
1948 | dump_td_info(td); | |
1949 | td_set_runstate(td, TD_REAPED); | |
1950 | goto reaped; | |
1951 | } | |
1952 | ||
2e1df07d JA |
1953 | /* |
1954 | * thread is not dead, continue | |
1955 | */ | |
1956 | pending++; | |
1957 | continue; | |
1958 | reaped: | |
1959 | (*nr_running)--; | |
342f4be4 JA |
1960 | (*m_rate) -= ddir_rw_sum(td->o.ratemin); |
1961 | (*t_rate) -= ddir_rw_sum(td->o.rate); | |
2e1df07d JA |
1962 | if (!td->pid) |
1963 | pending--; | |
1964 | ||
1965 | if (td->error) | |
1966 | exit_value++; | |
1967 | ||
1968 | done_secs += mtime_since_now(&td->epoch) / 1000; | |
4a88752a | 1969 | profile_td_exit(td); |
2e1df07d JA |
1970 | } |
1971 | ||
1972 | if (*nr_running == cputhreads && !pending && realthreads) | |
1973 | fio_terminate_threads(TERMINATE_ALL); | |
1974 | } | |
1975 | ||
e39c0676 | 1976 | static bool __check_trigger_file(void) |
ca09be4b JA |
1977 | { |
1978 | struct stat sb; | |
1979 | ||
1980 | if (!trigger_file) | |
e39c0676 | 1981 | return false; |
ca09be4b JA |
1982 | |
1983 | if (stat(trigger_file, &sb)) | |
e39c0676 | 1984 | return false; |
ca09be4b JA |
1985 | |
1986 | if (unlink(trigger_file) < 0) | |
1987 | log_err("fio: failed to unlink %s: %s\n", trigger_file, | |
1988 | strerror(errno)); | |
1989 | ||
e39c0676 | 1990 | return true; |
ca09be4b JA |
1991 | } |
1992 | ||
e39c0676 | 1993 | static bool trigger_timedout(void) |
ca09be4b JA |
1994 | { |
1995 | if (trigger_timeout) | |
1996 | return time_since_genesis() >= trigger_timeout; | |
1997 | ||
e39c0676 | 1998 | return false; |
ca09be4b JA |
1999 | } |
2000 | ||
2001 | void exec_trigger(const char *cmd) | |
2002 | { | |
2003 | int ret; | |
2004 | ||
2005 | if (!cmd) | |
2006 | return; | |
2007 | ||
2008 | ret = system(cmd); | |
2009 | if (ret == -1) | |
2010 | log_err("fio: failed executing %s trigger\n", cmd); | |
2011 | } | |
2012 | ||
2013 | void check_trigger_file(void) | |
2014 | { | |
2015 | if (__check_trigger_file() || trigger_timedout()) { | |
796fb3ce JA |
2016 | if (nr_clients) |
2017 | fio_clients_send_trigger(trigger_remote_cmd); | |
2018 | else { | |
d264264a | 2019 | verify_save_state(IO_LIST_ALL); |
ca09be4b JA |
2020 | fio_terminate_threads(TERMINATE_ALL); |
2021 | exec_trigger(trigger_cmd); | |
2022 | } | |
2023 | } | |
2024 | } | |
2025 | ||
2026 | static int fio_verify_load_state(struct thread_data *td) | |
2027 | { | |
2028 | int ret; | |
2029 | ||
2030 | if (!td->o.verify_state) | |
2031 | return 0; | |
2032 | ||
2033 | if (is_backend) { | |
2034 | void *data; | |
2035 | ||
2036 | ret = fio_server_get_verify_state(td->o.name, | |
94a6e1bb | 2037 | td->thread_number - 1, &data); |
ca09be4b | 2038 | if (!ret) |
94a6e1bb | 2039 | verify_assign_state(td, data); |
ca09be4b JA |
2040 | } else |
2041 | ret = verify_load_state(td, "local"); | |
2042 | ||
2043 | return ret; | |
2044 | } | |
2045 | ||
06464907 JA |
2046 | static void do_usleep(unsigned int usecs) |
2047 | { | |
2048 | check_for_running_stats(); | |
ca09be4b | 2049 | check_trigger_file(); |
06464907 JA |
2050 | usleep(usecs); |
2051 | } | |
2052 | ||
e39c0676 | 2053 | static bool check_mount_writes(struct thread_data *td) |
e81ecca3 JA |
2054 | { |
2055 | struct fio_file *f; | |
2056 | unsigned int i; | |
2057 | ||
2058 | if (!td_write(td) || td->o.allow_mounted_write) | |
e39c0676 | 2059 | return false; |
e81ecca3 JA |
2060 | |
2061 | for_each_file(td, f, i) { | |
2062 | if (f->filetype != FIO_TYPE_BD) | |
2063 | continue; | |
2064 | if (device_is_mounted(f->file_name)) | |
2065 | goto mounted; | |
2066 | } | |
2067 | ||
e39c0676 | 2068 | return false; |
e81ecca3 JA |
2069 | mounted: |
2070 | log_err("fio: %s appears mounted, and 'allow_mounted_write' isn't set. Aborting.", f->file_name); | |
e39c0676 | 2071 | return true; |
e81ecca3 JA |
2072 | } |
2073 | ||
9cc8cb91 AK |
2074 | static bool waitee_running(struct thread_data *me) |
2075 | { | |
2076 | const char *waitee = me->o.wait_for; | |
2077 | const char *self = me->o.name; | |
2078 | struct thread_data *td; | |
2079 | int i; | |
2080 | ||
2081 | if (!waitee) | |
2082 | return false; | |
2083 | ||
2084 | for_each_td(td, i) { | |
2085 | if (!strcmp(td->o.name, self) || strcmp(td->o.name, waitee)) | |
2086 | continue; | |
2087 | ||
2088 | if (td->runstate < TD_EXITED) { | |
2089 | dprint(FD_PROCESS, "%s fenced by %s(%s)\n", | |
2090 | self, td->o.name, | |
2091 | runstate_to_name(td->runstate)); | |
2092 | return true; | |
2093 | } | |
2094 | } | |
2095 | ||
2096 | dprint(FD_PROCESS, "%s: %s completed, can run\n", self, waitee); | |
2097 | return false; | |
2098 | } | |
2099 | ||
2e1df07d JA |
2100 | /* |
2101 | * Main function for kicking off and reaping jobs, as needed. | |
2102 | */ | |
24660963 | 2103 | static void run_threads(struct sk_out *sk_out) |
2e1df07d JA |
2104 | { |
2105 | struct thread_data *td; | |
2e1df07d | 2106 | unsigned int i, todo, nr_running, m_rate, t_rate, nr_started; |
0de5b26f | 2107 | uint64_t spent; |
2e1df07d | 2108 | |
2e1df07d JA |
2109 | if (fio_gtod_offload && fio_start_gtod_thread()) |
2110 | return; | |
334185e9 | 2111 | |
f2a2ce0e | 2112 | fio_idle_prof_init(); |
2e1df07d JA |
2113 | |
2114 | set_sig_handlers(); | |
2115 | ||
3a5f6bde JA |
2116 | nr_thread = nr_process = 0; |
2117 | for_each_td(td, i) { | |
e81ecca3 JA |
2118 | if (check_mount_writes(td)) |
2119 | return; | |
3a5f6bde JA |
2120 | if (td->o.use_thread) |
2121 | nr_thread++; | |
2122 | else | |
2123 | nr_process++; | |
2124 | } | |
2125 | ||
01cfefcc | 2126 | if (output_format & FIO_OUTPUT_NORMAL) { |
2e1df07d JA |
2127 | log_info("Starting "); |
2128 | if (nr_thread) | |
2129 | log_info("%d thread%s", nr_thread, | |
2130 | nr_thread > 1 ? "s" : ""); | |
2131 | if (nr_process) { | |
2132 | if (nr_thread) | |
2133 | log_info(" and "); | |
2134 | log_info("%d process%s", nr_process, | |
2135 | nr_process > 1 ? "es" : ""); | |
2136 | } | |
2137 | log_info("\n"); | |
e411c301 | 2138 | log_info_flush(); |
2e1df07d JA |
2139 | } |
2140 | ||
2141 | todo = thread_number; | |
2142 | nr_running = 0; | |
2143 | nr_started = 0; | |
2144 | m_rate = t_rate = 0; | |
2145 | ||
2146 | for_each_td(td, i) { | |
2147 | print_status_init(td->thread_number - 1); | |
2148 | ||
2149 | if (!td->o.create_serialize) | |
2150 | continue; | |
2151 | ||
ca09be4b JA |
2152 | if (fio_verify_load_state(td)) |
2153 | goto reap; | |
2154 | ||
2e1df07d JA |
2155 | /* |
2156 | * do file setup here so it happens sequentially, | |
2157 | * we don't want X number of threads getting their | |
2158 | * client data interspersed on disk | |
2159 | */ | |
2160 | if (setup_files(td)) { | |
ca09be4b | 2161 | reap: |
2e1df07d JA |
2162 | exit_value++; |
2163 | if (td->error) | |
2164 | log_err("fio: pid=%d, err=%d/%s\n", | |
2165 | (int) td->pid, td->error, td->verror); | |
2166 | td_set_runstate(td, TD_REAPED); | |
2167 | todo--; | |
2168 | } else { | |
2169 | struct fio_file *f; | |
2170 | unsigned int j; | |
2171 | ||
2172 | /* | |
2173 | * for sharing to work, each job must always open | |
2174 | * its own files. so close them, if we opened them | |
2175 | * for creation | |
2176 | */ | |
2177 | for_each_file(td, f, j) { | |
2178 | if (fio_file_open(f)) | |
2179 | td_io_close_file(td, f); | |
2180 | } | |
2181 | } | |
2182 | } | |
2183 | ||
f2a2ce0e HL |
2184 | /* start idle threads before io threads start to run */ |
2185 | fio_idle_prof_start(); | |
2186 | ||
2e1df07d JA |
2187 | set_genesis_time(); |
2188 | ||
2189 | while (todo) { | |
2190 | struct thread_data *map[REAL_MAX_JOBS]; | |
2191 | struct timeval this_start; | |
2192 | int this_jobs = 0, left; | |
ce8b6139 | 2193 | struct fork_data *fd; |
2e1df07d JA |
2194 | |
2195 | /* | |
2196 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
2197 | */ | |
2198 | for_each_td(td, i) { | |
2199 | if (td->runstate != TD_NOT_CREATED) | |
2200 | continue; | |
2201 | ||
2202 | /* | |
2203 | * never got a chance to start, killed by other | |
2204 | * thread for some reason | |
2205 | */ | |
2206 | if (td->terminate) { | |
2207 | todo--; | |
2208 | continue; | |
2209 | } | |
2210 | ||
2211 | if (td->o.start_delay) { | |
0de5b26f | 2212 | spent = utime_since_genesis(); |
2e1df07d | 2213 | |
74454ce4 | 2214 | if (td->o.start_delay > spent) |
2e1df07d JA |
2215 | continue; |
2216 | } | |
2217 | ||
2218 | if (td->o.stonewall && (nr_started || nr_running)) { | |
2219 | dprint(FD_PROCESS, "%s: stonewall wait\n", | |
2220 | td->o.name); | |
2221 | break; | |
2222 | } | |
2223 | ||
9cc8cb91 AK |
2224 | if (waitee_running(td)) { |
2225 | dprint(FD_PROCESS, "%s: waiting for %s\n", | |
2226 | td->o.name, td->o.wait_for); | |
5c74fc76 | 2227 | continue; |
9cc8cb91 AK |
2228 | } |
2229 | ||
2e1df07d JA |
2230 | init_disk_util(td); |
2231 | ||
c97f1ad6 JA |
2232 | td->rusage_sem = fio_mutex_init(FIO_MUTEX_LOCKED); |
2233 | td->update_rusage = 0; | |
2234 | ||
2e1df07d JA |
2235 | /* |
2236 | * Set state to created. Thread will transition | |
2237 | * to TD_INITIALIZED when it's done setting up. | |
2238 | */ | |
2239 | td_set_runstate(td, TD_CREATED); | |
2240 | map[this_jobs++] = td; | |
2241 | nr_started++; | |
2242 | ||
ce8b6139 JA |
2243 | fd = calloc(1, sizeof(*fd)); |
2244 | fd->td = td; | |
2245 | fd->sk_out = sk_out; | |
2246 | ||
2e1df07d JA |
2247 | if (td->o.use_thread) { |
2248 | int ret; | |
2249 | ||
2250 | dprint(FD_PROCESS, "will pthread_create\n"); | |
2251 | ret = pthread_create(&td->thread, NULL, | |
24660963 | 2252 | thread_main, fd); |
2e1df07d JA |
2253 | if (ret) { |
2254 | log_err("pthread_create: %s\n", | |
2255 | strerror(ret)); | |
24660963 | 2256 | free(fd); |
2e1df07d JA |
2257 | nr_started--; |
2258 | break; | |
2259 | } | |
2260 | ret = pthread_detach(td->thread); | |
2261 | if (ret) | |
2262 | log_err("pthread_detach: %s", | |
2263 | strerror(ret)); | |
2264 | } else { | |
2265 | pid_t pid; | |
2266 | dprint(FD_PROCESS, "will fork\n"); | |
2267 | pid = fork(); | |
2268 | if (!pid) { | |
ce8b6139 | 2269 | int ret; |
2e1df07d | 2270 | |
ce8b6139 | 2271 | ret = (int)(uintptr_t)thread_main(fd); |
2e1df07d JA |
2272 | _exit(ret); |
2273 | } else if (i == fio_debug_jobno) | |
2274 | *fio_debug_jobp = pid; | |
2275 | } | |
2276 | dprint(FD_MUTEX, "wait on startup_mutex\n"); | |
09400a60 | 2277 | if (fio_mutex_down_timeout(startup_mutex, 10000)) { |
2e1df07d JA |
2278 | log_err("fio: job startup hung? exiting.\n"); |
2279 | fio_terminate_threads(TERMINATE_ALL); | |
2280 | fio_abort = 1; | |
2281 | nr_started--; | |
2282 | break; | |
2283 | } | |
2284 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); | |
2285 | } | |
2286 | ||
2287 | /* | |
2288 | * Wait for the started threads to transition to | |
2289 | * TD_INITIALIZED. | |
2290 | */ | |
2291 | fio_gettime(&this_start, NULL); | |
2292 | left = this_jobs; | |
2293 | while (left && !fio_abort) { | |
2294 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) | |
2295 | break; | |
2296 | ||
06464907 | 2297 | do_usleep(100000); |
2e1df07d JA |
2298 | |
2299 | for (i = 0; i < this_jobs; i++) { | |
2300 | td = map[i]; | |
2301 | if (!td) | |
2302 | continue; | |
2303 | if (td->runstate == TD_INITIALIZED) { | |
2304 | map[i] = NULL; | |
2305 | left--; | |
2306 | } else if (td->runstate >= TD_EXITED) { | |
2307 | map[i] = NULL; | |
2308 | left--; | |
2309 | todo--; | |
2310 | nr_running++; /* work-around... */ | |
2311 | } | |
2312 | } | |
2313 | } | |
2314 | ||
2315 | if (left) { | |
4e87c37a JA |
2316 | log_err("fio: %d job%s failed to start\n", left, |
2317 | left > 1 ? "s" : ""); | |
2e1df07d JA |
2318 | for (i = 0; i < this_jobs; i++) { |
2319 | td = map[i]; | |
2320 | if (!td) | |
2321 | continue; | |
2322 | kill(td->pid, SIGTERM); | |
2323 | } | |
2324 | break; | |
2325 | } | |
2326 | ||
2327 | /* | |
2328 | * start created threads (TD_INITIALIZED -> TD_RUNNING). | |
2329 | */ | |
2330 | for_each_td(td, i) { | |
2331 | if (td->runstate != TD_INITIALIZED) | |
2332 | continue; | |
2333 | ||
2334 | if (in_ramp_time(td)) | |
2335 | td_set_runstate(td, TD_RAMP); | |
2336 | else | |
2337 | td_set_runstate(td, TD_RUNNING); | |
2338 | nr_running++; | |
2339 | nr_started--; | |
342f4be4 JA |
2340 | m_rate += ddir_rw_sum(td->o.ratemin); |
2341 | t_rate += ddir_rw_sum(td->o.rate); | |
2e1df07d JA |
2342 | todo--; |
2343 | fio_mutex_up(td->mutex); | |
2344 | } | |
2345 | ||
2346 | reap_threads(&nr_running, &t_rate, &m_rate); | |
2347 | ||
122c7725 | 2348 | if (todo) |
06464907 | 2349 | do_usleep(100000); |
2e1df07d JA |
2350 | } |
2351 | ||
2352 | while (nr_running) { | |
2353 | reap_threads(&nr_running, &t_rate, &m_rate); | |
06464907 | 2354 | do_usleep(10000); |
2e1df07d JA |
2355 | } |
2356 | ||
f2a2ce0e HL |
2357 | fio_idle_prof_stop(); |
2358 | ||
2e1df07d | 2359 | update_io_ticks(); |
2e1df07d JA |
2360 | } |
2361 | ||
27357187 JA |
2362 | static void free_disk_util(void) |
2363 | { | |
27357187 | 2364 | disk_util_prune_entries(); |
a39fb9ea | 2365 | helper_thread_destroy(); |
2e1df07d JA |
2366 | } |
2367 | ||
24660963 | 2368 | int fio_backend(struct sk_out *sk_out) |
2e1df07d JA |
2369 | { |
2370 | struct thread_data *td; | |
2371 | int i; | |
2372 | ||
2373 | if (exec_profile) { | |
2374 | if (load_profile(exec_profile)) | |
2375 | return 1; | |
2376 | free(exec_profile); | |
2377 | exec_profile = NULL; | |
2378 | } | |
2379 | if (!thread_number) | |
2380 | return 0; | |
2381 | ||
2382 | if (write_bw_log) { | |
aee2ab67 JA |
2383 | struct log_params p = { |
2384 | .log_type = IO_LOG_TYPE_BW, | |
2385 | }; | |
2386 | ||
2387 | setup_log(&agg_io_log[DDIR_READ], &p, "agg-read_bw.log"); | |
2388 | setup_log(&agg_io_log[DDIR_WRITE], &p, "agg-write_bw.log"); | |
2389 | setup_log(&agg_io_log[DDIR_TRIM], &p, "agg-trim_bw.log"); | |
2e1df07d JA |
2390 | } |
2391 | ||
521da527 | 2392 | startup_mutex = fio_mutex_init(FIO_MUTEX_LOCKED); |
2e1df07d JA |
2393 | if (startup_mutex == NULL) |
2394 | return 1; | |
2e1df07d JA |
2395 | |
2396 | set_genesis_time(); | |
cef9175e | 2397 | stat_init(); |
a39fb9ea | 2398 | helper_thread_create(startup_mutex, sk_out); |
2e1df07d JA |
2399 | |
2400 | cgroup_list = smalloc(sizeof(*cgroup_list)); | |
2401 | INIT_FLIST_HEAD(cgroup_list); | |
2402 | ||
24660963 | 2403 | run_threads(sk_out); |
2e1df07d | 2404 | |
a39fb9ea | 2405 | helper_thread_exit(); |
8aab824f | 2406 | |
2e1df07d | 2407 | if (!fio_abort) { |
83f7b64e | 2408 | __show_run_stats(); |
2e1df07d | 2409 | if (write_bw_log) { |
cb7e0ace JA |
2410 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
2411 | struct io_log *log = agg_io_log[i]; | |
2412 | ||
60a25727 | 2413 | flush_log(log, false); |
518dac09 | 2414 | free_log(log); |
cb7e0ace | 2415 | } |
2e1df07d JA |
2416 | } |
2417 | } | |
2418 | ||
fda2cfac | 2419 | for_each_td(td, i) { |
2e1df07d | 2420 | fio_options_free(td); |
8049adc1 JA |
2421 | if (td->rusage_sem) { |
2422 | fio_mutex_remove(td->rusage_sem); | |
2423 | td->rusage_sem = NULL; | |
2424 | } | |
fda2cfac | 2425 | } |
2e1df07d | 2426 | |
a462baef | 2427 | free_disk_util(); |
2e1df07d JA |
2428 | cgroup_kill(cgroup_list); |
2429 | sfree(cgroup_list); | |
2430 | sfree(cgroup_mnt); | |
2431 | ||
2432 | fio_mutex_remove(startup_mutex); | |
cef9175e | 2433 | stat_exit(); |
2e1df07d JA |
2434 | return exit_value; |
2435 | } |