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> | |
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 | } | |
574 | ||
2e1df07d JA |
575 | /* |
576 | * The main verify engine. Runs over the writes we previously submitted, | |
577 | * reads the blocks back in, and checks the crc/md5 of the data. | |
578 | */ | |
100f49f1 | 579 | static void do_verify(struct thread_data *td, uint64_t verify_bytes) |
2e1df07d JA |
580 | { |
581 | struct fio_file *f; | |
582 | struct io_u *io_u; | |
583 | int ret, min_events; | |
584 | unsigned int i; | |
585 | ||
586 | dprint(FD_VERIFY, "starting loop\n"); | |
587 | ||
588 | /* | |
589 | * sync io first and invalidate cache, to make sure we really | |
590 | * read from disk. | |
591 | */ | |
592 | for_each_file(td, f, i) { | |
593 | if (!fio_file_open(f)) | |
594 | continue; | |
595 | if (fio_io_sync(td, f)) | |
596 | break; | |
597 | if (file_invalidate_cache(td, f)) | |
598 | break; | |
599 | } | |
600 | ||
c97f1ad6 JA |
601 | check_update_rusage(td); |
602 | ||
2e1df07d JA |
603 | if (td->error) |
604 | return; | |
605 | ||
606 | td_set_runstate(td, TD_VERIFYING); | |
607 | ||
608 | io_u = NULL; | |
609 | while (!td->terminate) { | |
fbccf46c | 610 | enum fio_ddir ddir; |
e9d512d8 | 611 | int full; |
2e1df07d JA |
612 | |
613 | update_tv_cache(td); | |
c97f1ad6 | 614 | check_update_rusage(td); |
2e1df07d JA |
615 | |
616 | if (runtime_exceeded(td, &td->tv_cache)) { | |
617 | __update_tv_cache(td); | |
618 | if (runtime_exceeded(td, &td->tv_cache)) { | |
ebea2133 | 619 | fio_mark_td_terminate(td); |
2e1df07d JA |
620 | break; |
621 | } | |
622 | } | |
623 | ||
9e684a49 DE |
624 | if (flow_threshold_exceeded(td)) |
625 | continue; | |
626 | ||
44cbc6da JA |
627 | if (!td->o.experimental_verify) { |
628 | io_u = __get_io_u(td); | |
629 | if (!io_u) | |
630 | break; | |
2e1df07d | 631 | |
44cbc6da JA |
632 | if (get_next_verify(td, io_u)) { |
633 | put_io_u(td, io_u); | |
634 | break; | |
635 | } | |
2e1df07d | 636 | |
44cbc6da JA |
637 | if (td_io_prep(td, io_u)) { |
638 | put_io_u(td, io_u); | |
639 | break; | |
640 | } | |
641 | } else { | |
55312f9f | 642 | if (ddir_rw_sum(td->bytes_done) + td->o.rw_min_bs > verify_bytes) |
100f49f1 JA |
643 | break; |
644 | ||
bcd5abfa | 645 | while ((io_u = get_io_u(td)) != NULL) { |
002fe734 JA |
646 | if (IS_ERR(io_u)) { |
647 | io_u = NULL; | |
648 | ret = FIO_Q_BUSY; | |
649 | goto reap; | |
650 | } | |
651 | ||
bcd5abfa JA |
652 | /* |
653 | * We are only interested in the places where | |
654 | * we wrote or trimmed IOs. Turn those into | |
655 | * reads for verification purposes. | |
656 | */ | |
657 | if (io_u->ddir == DDIR_READ) { | |
658 | /* | |
659 | * Pretend we issued it for rwmix | |
660 | * accounting | |
661 | */ | |
662 | td->io_issues[DDIR_READ]++; | |
663 | put_io_u(td, io_u); | |
664 | continue; | |
665 | } else if (io_u->ddir == DDIR_TRIM) { | |
666 | io_u->ddir = DDIR_READ; | |
a9da8ab2 | 667 | io_u_set(io_u, IO_U_F_TRIMMED); |
bcd5abfa JA |
668 | break; |
669 | } else if (io_u->ddir == DDIR_WRITE) { | |
670 | io_u->ddir = DDIR_READ; | |
671 | break; | |
672 | } else { | |
673 | put_io_u(td, io_u); | |
674 | continue; | |
675 | } | |
676 | } | |
44cbc6da | 677 | |
bcd5abfa | 678 | if (!io_u) |
44cbc6da | 679 | break; |
2e1df07d JA |
680 | } |
681 | ||
ca09be4b JA |
682 | if (verify_state_should_stop(td, io_u)) { |
683 | put_io_u(td, io_u); | |
684 | break; | |
685 | } | |
686 | ||
2e1df07d JA |
687 | if (td->o.verify_async) |
688 | io_u->end_io = verify_io_u_async; | |
689 | else | |
690 | io_u->end_io = verify_io_u; | |
691 | ||
fbccf46c | 692 | ddir = io_u->ddir; |
10adc4a7 GG |
693 | if (!td->o.disable_slat) |
694 | fio_gettime(&io_u->start_time, NULL); | |
fbccf46c | 695 | |
2e1df07d | 696 | ret = td_io_queue(td, io_u); |
2e1df07d | 697 | |
e9d512d8 | 698 | if (io_queue_event(td, io_u, &ret, ddir, NULL, 1, NULL)) |
2e1df07d JA |
699 | break; |
700 | ||
701 | /* | |
702 | * if we can queue more, do so. but check if there are | |
703 | * completed io_u's first. Note that we can get BUSY even | |
704 | * without IO queued, if the system is resource starved. | |
705 | */ | |
002fe734 | 706 | reap: |
2e1df07d | 707 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); |
82407585 | 708 | if (full || io_in_polling(td)) |
55312f9f | 709 | ret = wait_for_completions(td, NULL); |
2e1df07d | 710 | |
2e1df07d JA |
711 | if (ret < 0) |
712 | break; | |
713 | } | |
714 | ||
c97f1ad6 JA |
715 | check_update_rusage(td); |
716 | ||
2e1df07d JA |
717 | if (!td->error) { |
718 | min_events = td->cur_depth; | |
719 | ||
720 | if (min_events) | |
55312f9f | 721 | ret = io_u_queued_complete(td, min_events); |
2e1df07d JA |
722 | } else |
723 | cleanup_pending_aio(td); | |
724 | ||
725 | td_set_runstate(td, TD_RUNNING); | |
726 | ||
727 | dprint(FD_VERIFY, "exiting loop\n"); | |
728 | } | |
729 | ||
e39c0676 | 730 | static bool exceeds_number_ios(struct thread_data *td) |
3939fe85 JA |
731 | { |
732 | unsigned long long number_ios; | |
733 | ||
734 | if (!td->o.number_ios) | |
e39c0676 | 735 | return false; |
3939fe85 | 736 | |
cf8a46a7 | 737 | number_ios = ddir_rw_sum(td->io_blocks); |
3939fe85 JA |
738 | number_ios += td->io_u_queued + td->io_u_in_flight; |
739 | ||
cf8a46a7 | 740 | return number_ios >= (td->o.number_ios * td->loops); |
3939fe85 JA |
741 | } |
742 | ||
e39c0676 | 743 | static bool io_issue_bytes_exceeded(struct thread_data *td) |
f7078f7b | 744 | { |
77731b29 | 745 | unsigned long long bytes, limit; |
f7078f7b JA |
746 | |
747 | if (td_rw(td)) | |
74d6277f | 748 | bytes = td->io_issue_bytes[DDIR_READ] + td->io_issue_bytes[DDIR_WRITE]; |
f7078f7b | 749 | else if (td_write(td)) |
74d6277f | 750 | bytes = td->io_issue_bytes[DDIR_WRITE]; |
6eaf09d6 | 751 | else if (td_read(td)) |
74d6277f | 752 | bytes = td->io_issue_bytes[DDIR_READ]; |
f7078f7b | 753 | else |
74d6277f | 754 | bytes = td->io_issue_bytes[DDIR_TRIM]; |
f7078f7b | 755 | |
77731b29 JA |
756 | if (td->o.io_limit) |
757 | limit = td->o.io_limit; | |
758 | else | |
759 | limit = td->o.size; | |
760 | ||
cf8a46a7 | 761 | limit *= td->loops; |
77731b29 | 762 | return bytes >= limit || exceeds_number_ios(td); |
f7078f7b JA |
763 | } |
764 | ||
e39c0676 | 765 | static bool io_complete_bytes_exceeded(struct thread_data *td) |
e28dd2cf JE |
766 | { |
767 | unsigned long long bytes, limit; | |
768 | ||
769 | if (td_rw(td)) | |
770 | bytes = td->this_io_bytes[DDIR_READ] + td->this_io_bytes[DDIR_WRITE]; | |
771 | else if (td_write(td)) | |
772 | bytes = td->this_io_bytes[DDIR_WRITE]; | |
773 | else if (td_read(td)) | |
774 | bytes = td->this_io_bytes[DDIR_READ]; | |
775 | else | |
776 | bytes = td->this_io_bytes[DDIR_TRIM]; | |
777 | ||
778 | if (td->o.io_limit) | |
779 | limit = td->o.io_limit; | |
780 | else | |
781 | limit = td->o.size; | |
782 | ||
cf8a46a7 | 783 | limit *= td->loops; |
e28dd2cf JE |
784 | return bytes >= limit || exceeds_number_ios(td); |
785 | } | |
786 | ||
50a8ce86 D |
787 | /* |
788 | * used to calculate the next io time for rate control | |
789 | * | |
790 | */ | |
791 | static long long usec_for_io(struct thread_data *td, enum fio_ddir ddir) | |
792 | { | |
ff6bb260 | 793 | uint64_t secs, remainder, bps, bytes, iops; |
50a8ce86 D |
794 | |
795 | assert(!(td->flags & TD_F_CHILD)); | |
796 | bytes = td->rate_io_issue_bytes[ddir]; | |
797 | bps = td->rate_bps[ddir]; | |
ff6bb260 | 798 | |
6de65959 | 799 | if (td->o.rate_process == RATE_PROCESS_POISSON) { |
a77d139b | 800 | uint64_t val; |
ff6bb260 | 801 | iops = bps / td->o.bs[ddir]; |
a77d139b JA |
802 | val = (int64_t) (1000000 / iops) * |
803 | -logf(__rand_0_1(&td->poisson_state)); | |
804 | if (val) { | |
805 | dprint(FD_RATE, "poisson rate iops=%llu\n", | |
806 | (unsigned long long) 1000000 / val); | |
807 | } | |
808 | td->last_usec += val; | |
ff6bb260 SL |
809 | return td->last_usec; |
810 | } else if (bps) { | |
50a8ce86 D |
811 | secs = bytes / bps; |
812 | remainder = bytes % bps; | |
813 | return remainder * 1000000 / bps + secs * 1000000; | |
e7b24047 JA |
814 | } |
815 | ||
816 | return 0; | |
50a8ce86 D |
817 | } |
818 | ||
2e1df07d JA |
819 | /* |
820 | * Main IO worker function. It retrieves io_u's to process and queues | |
821 | * and reaps them, checking for rate and errors along the way. | |
100f49f1 JA |
822 | * |
823 | * Returns number of bytes written and trimmed. | |
2e1df07d | 824 | */ |
95b03be0 | 825 | static void do_io(struct thread_data *td, uint64_t *bytes_done) |
2e1df07d JA |
826 | { |
827 | unsigned int i; | |
828 | int ret = 0; | |
c2703bf3 | 829 | uint64_t total_bytes, bytes_issued = 0; |
70c68076 | 830 | |
95b03be0 JA |
831 | for (i = 0; i < DDIR_RWDIR_CNT; i++) |
832 | bytes_done[i] = td->bytes_done[i]; | |
2e1df07d JA |
833 | |
834 | if (in_ramp_time(td)) | |
835 | td_set_runstate(td, TD_RAMP); | |
836 | else | |
837 | td_set_runstate(td, TD_RUNNING); | |
838 | ||
3e260a46 JA |
839 | lat_target_init(td); |
840 | ||
1e564979 JE |
841 | total_bytes = td->o.size; |
842 | /* | |
843 | * Allow random overwrite workloads to write up to io_limit | |
844 | * before starting verification phase as 'size' doesn't apply. | |
845 | */ | |
846 | if (td_write(td) && td_random(td) && td->o.norandommap) | |
847 | total_bytes = max(total_bytes, (uint64_t) td->o.io_limit); | |
78a6469c JA |
848 | /* |
849 | * If verify_backlog is enabled, we'll run the verify in this | |
850 | * handler as well. For that case, we may need up to twice the | |
851 | * amount of bytes. | |
852 | */ | |
78a6469c JA |
853 | if (td->o.verify != VERIFY_NONE && |
854 | (td_write(td) && td->o.verify_backlog)) | |
c2703bf3 JA |
855 | total_bytes += td->o.size; |
856 | ||
82a90686 | 857 | /* In trimwrite mode, each byte is trimmed and then written, so |
0e4dd95c | 858 | * allow total_bytes to be twice as big */ |
82a90686 | 859 | if (td_trimwrite(td)) |
0e4dd95c DE |
860 | total_bytes += td->total_io_size; |
861 | ||
f7078f7b | 862 | while ((td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || |
e28dd2cf | 863 | (!flist_empty(&td->trim_list)) || !io_issue_bytes_exceeded(td) || |
c04e4661 | 864 | td->o.time_based) { |
2e1df07d | 865 | struct timeval comp_time; |
2e1df07d | 866 | struct io_u *io_u; |
e9d512d8 | 867 | int full; |
2e1df07d JA |
868 | enum fio_ddir ddir; |
869 | ||
c97f1ad6 JA |
870 | check_update_rusage(td); |
871 | ||
7d7803fa | 872 | if (td->terminate || td->done) |
2e1df07d JA |
873 | break; |
874 | ||
875 | update_tv_cache(td); | |
876 | ||
877 | if (runtime_exceeded(td, &td->tv_cache)) { | |
878 | __update_tv_cache(td); | |
879 | if (runtime_exceeded(td, &td->tv_cache)) { | |
ebea2133 | 880 | fio_mark_td_terminate(td); |
2e1df07d JA |
881 | break; |
882 | } | |
883 | } | |
884 | ||
9e684a49 DE |
885 | if (flow_threshold_exceeded(td)) |
886 | continue; | |
887 | ||
f1a32461 JA |
888 | /* |
889 | * Break if we exceeded the bytes. The exception is time | |
890 | * based runs, but we still need to break out of the loop | |
891 | * for those to run verification, if enabled. | |
892 | */ | |
893 | if (bytes_issued >= total_bytes && | |
894 | (!td->o.time_based || | |
895 | (td->o.time_based && td->o.verify != VERIFY_NONE))) | |
20876c53 JC |
896 | break; |
897 | ||
2e1df07d | 898 | io_u = get_io_u(td); |
002fe734 JA |
899 | if (IS_ERR_OR_NULL(io_u)) { |
900 | int err = PTR_ERR(io_u); | |
901 | ||
902 | io_u = NULL; | |
903 | if (err == -EBUSY) { | |
904 | ret = FIO_Q_BUSY; | |
905 | goto reap; | |
906 | } | |
3e260a46 JA |
907 | if (td->o.latency_target) |
908 | goto reap; | |
2e1df07d | 909 | break; |
3e260a46 | 910 | } |
2e1df07d JA |
911 | |
912 | ddir = io_u->ddir; | |
913 | ||
914 | /* | |
82af2a7c JA |
915 | * Add verification end_io handler if: |
916 | * - Asked to verify (!td_rw(td)) | |
917 | * - Or the io_u is from our verify list (mixed write/ver) | |
2e1df07d JA |
918 | */ |
919 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ && | |
82af2a7c | 920 | ((io_u->flags & IO_U_F_VER_LIST) || !td_rw(td))) { |
c4b6117b PV |
921 | |
922 | if (!td->o.verify_pattern_bytes) { | |
d6b72507 | 923 | io_u->rand_seed = __rand(&td->verify_state); |
c4b6117b | 924 | if (sizeof(int) != sizeof(long *)) |
d6b72507 | 925 | io_u->rand_seed *= __rand(&td->verify_state); |
c4b6117b PV |
926 | } |
927 | ||
ca09be4b JA |
928 | if (verify_state_should_stop(td, io_u)) { |
929 | put_io_u(td, io_u); | |
930 | break; | |
931 | } | |
932 | ||
2e1df07d JA |
933 | if (td->o.verify_async) |
934 | io_u->end_io = verify_io_u_async; | |
935 | else | |
936 | io_u->end_io = verify_io_u; | |
937 | td_set_runstate(td, TD_VERIFYING); | |
938 | } else if (in_ramp_time(td)) | |
939 | td_set_runstate(td, TD_RAMP); | |
940 | else | |
941 | td_set_runstate(td, TD_RUNNING); | |
942 | ||
9a50c5c5 | 943 | /* |
f9401285 JA |
944 | * Always log IO before it's issued, so we know the specific |
945 | * order of it. The logged unit will track when the IO has | |
946 | * completed. | |
9a50c5c5 | 947 | */ |
c4b6117b PV |
948 | if (td_write(td) && io_u->ddir == DDIR_WRITE && |
949 | td->o.do_verify && | |
950 | td->o.verify != VERIFY_NONE && | |
f9401285 | 951 | !td->o.experimental_verify) |
c4b6117b PV |
952 | log_io_piece(td, io_u); |
953 | ||
a9da8ab2 | 954 | if (td->o.io_submit_mode == IO_MODE_OFFLOAD) { |
0c5df5f9 JA |
955 | const unsigned long blen = io_u->xfer_buflen; |
956 | const enum fio_ddir ddir = acct_ddir(io_u); | |
957 | ||
a9da8ab2 JA |
958 | if (td->error) |
959 | break; | |
0c5df5f9 | 960 | |
26de50cf JA |
961 | workqueue_enqueue(&td->io_wq, &io_u->work); |
962 | ret = FIO_Q_QUEUED; | |
50a8ce86 | 963 | |
26de50cf | 964 | if (ddir_rw(ddir)) { |
0c5df5f9 JA |
965 | td->io_issues[ddir]++; |
966 | td->io_issue_bytes[ddir] += blen; | |
967 | td->rate_io_issue_bytes[ddir] += blen; | |
968 | } | |
969 | ||
50a8ce86 D |
970 | if (should_check_rate(td)) |
971 | td->rate_next_io_time[ddir] = usec_for_io(td, ddir); | |
972 | ||
a9da8ab2 JA |
973 | } else { |
974 | ret = td_io_queue(td, io_u); | |
2e1df07d | 975 | |
50a8ce86 D |
976 | if (should_check_rate(td)) |
977 | td->rate_next_io_time[ddir] = usec_for_io(td, ddir); | |
978 | ||
fd727d9d | 979 | if (io_queue_event(td, io_u, &ret, ddir, &bytes_issued, 0, &comp_time)) |
a9da8ab2 | 980 | break; |
2e1df07d | 981 | |
a9da8ab2 JA |
982 | /* |
983 | * See if we need to complete some commands. Note that | |
984 | * we can get BUSY even without IO queued, if the | |
985 | * system is resource starved. | |
986 | */ | |
3e260a46 | 987 | reap: |
a9da8ab2 JA |
988 | full = queue_full(td) || |
989 | (ret == FIO_Q_BUSY && td->cur_depth); | |
82407585 | 990 | if (full || io_in_polling(td)) |
a9da8ab2 JA |
991 | ret = wait_for_completions(td, &comp_time); |
992 | } | |
2e1df07d JA |
993 | if (ret < 0) |
994 | break; | |
55312f9f JA |
995 | if (!ddir_rw_sum(td->bytes_done) && |
996 | !(td->io_ops->flags & FIO_NOIO)) | |
2e1df07d JA |
997 | continue; |
998 | ||
55312f9f JA |
999 | if (!in_ramp_time(td) && should_check_rate(td)) { |
1000 | if (check_min_rate(td, &comp_time)) { | |
f9cafb12 | 1001 | if (exitall_on_terminate || td->o.exitall_error) |
2e1df07d JA |
1002 | fio_terminate_threads(td->groupid); |
1003 | td_verror(td, EIO, "check_min_rate"); | |
1004 | break; | |
1005 | } | |
1006 | } | |
3e260a46 JA |
1007 | if (!in_ramp_time(td) && td->o.latency_target) |
1008 | lat_target_check(td); | |
e155cb64 | 1009 | |
2e1df07d JA |
1010 | if (td->o.thinktime) { |
1011 | unsigned long long b; | |
1012 | ||
342f4be4 | 1013 | b = ddir_rw_sum(td->io_blocks); |
2e1df07d JA |
1014 | if (!(b % td->o.thinktime_blocks)) { |
1015 | int left; | |
1016 | ||
002e7183 JA |
1017 | io_u_quiesce(td); |
1018 | ||
2e1df07d JA |
1019 | if (td->o.thinktime_spin) |
1020 | usec_spin(td->o.thinktime_spin); | |
1021 | ||
1022 | left = td->o.thinktime - td->o.thinktime_spin; | |
1023 | if (left) | |
1024 | usec_sleep(td, left); | |
1025 | } | |
1026 | } | |
1027 | } | |
1028 | ||
c97f1ad6 JA |
1029 | check_update_rusage(td); |
1030 | ||
2e1df07d | 1031 | if (td->trim_entries) |
4e0a8fa2 | 1032 | log_err("fio: %lu trim entries leaked?\n", td->trim_entries); |
2e1df07d JA |
1033 | |
1034 | if (td->o.fill_device && td->error == ENOSPC) { | |
1035 | td->error = 0; | |
ebea2133 | 1036 | fio_mark_td_terminate(td); |
2e1df07d JA |
1037 | } |
1038 | if (!td->error) { | |
1039 | struct fio_file *f; | |
1040 | ||
a9da8ab2 JA |
1041 | if (td->o.io_submit_mode == IO_MODE_OFFLOAD) { |
1042 | workqueue_flush(&td->io_wq); | |
1043 | i = 0; | |
1044 | } else | |
1045 | i = td->cur_depth; | |
1046 | ||
2e1df07d | 1047 | if (i) { |
55312f9f | 1048 | ret = io_u_queued_complete(td, i); |
2e1df07d JA |
1049 | if (td->o.fill_device && td->error == ENOSPC) |
1050 | td->error = 0; | |
1051 | } | |
1052 | ||
1053 | if (should_fsync(td) && td->o.end_fsync) { | |
1054 | td_set_runstate(td, TD_FSYNCING); | |
1055 | ||
1056 | for_each_file(td, f, i) { | |
61ee0f86 | 1057 | if (!fio_file_fsync(td, f)) |
2e1df07d | 1058 | continue; |
61ee0f86 JA |
1059 | |
1060 | log_err("fio: end_fsync failed for file %s\n", | |
1061 | f->file_name); | |
2e1df07d JA |
1062 | } |
1063 | } | |
1064 | } else | |
1065 | cleanup_pending_aio(td); | |
1066 | ||
1067 | /* | |
1068 | * stop job if we failed doing any IO | |
1069 | */ | |
342f4be4 | 1070 | if (!ddir_rw_sum(td->this_io_bytes)) |
2e1df07d | 1071 | td->done = 1; |
100f49f1 | 1072 | |
95b03be0 JA |
1073 | for (i = 0; i < DDIR_RWDIR_CNT; i++) |
1074 | bytes_done[i] = td->bytes_done[i] - bytes_done[i]; | |
2e1df07d JA |
1075 | } |
1076 | ||
94a6e1bb JA |
1077 | static void free_file_completion_logging(struct thread_data *td) |
1078 | { | |
1079 | struct fio_file *f; | |
1080 | unsigned int i; | |
1081 | ||
1082 | for_each_file(td, f, i) { | |
1083 | if (!f->last_write_comp) | |
1084 | break; | |
1085 | sfree(f->last_write_comp); | |
1086 | } | |
1087 | } | |
1088 | ||
1089 | static int init_file_completion_logging(struct thread_data *td, | |
1090 | unsigned int depth) | |
1091 | { | |
1092 | struct fio_file *f; | |
1093 | unsigned int i; | |
1094 | ||
1095 | if (td->o.verify == VERIFY_NONE || !td->o.verify_state_save) | |
1096 | return 0; | |
1097 | ||
1098 | for_each_file(td, f, i) { | |
1099 | f->last_write_comp = scalloc(depth, sizeof(uint64_t)); | |
1100 | if (!f->last_write_comp) | |
1101 | goto cleanup; | |
1102 | } | |
1103 | ||
1104 | return 0; | |
1105 | ||
1106 | cleanup: | |
1107 | free_file_completion_logging(td); | |
1108 | log_err("fio: failed to alloc write comp data\n"); | |
1109 | return 1; | |
1110 | } | |
1111 | ||
2e1df07d JA |
1112 | static void cleanup_io_u(struct thread_data *td) |
1113 | { | |
2e1df07d JA |
1114 | struct io_u *io_u; |
1115 | ||
2ae0b204 | 1116 | while ((io_u = io_u_qpop(&td->io_u_freelist)) != NULL) { |
c73ed246 JA |
1117 | |
1118 | if (td->io_ops->io_u_free) | |
1119 | td->io_ops->io_u_free(td, io_u); | |
1120 | ||
2e1df07d JA |
1121 | fio_memfree(io_u, sizeof(*io_u)); |
1122 | } | |
1123 | ||
1124 | free_io_mem(td); | |
2ae0b204 JA |
1125 | |
1126 | io_u_rexit(&td->io_u_requeues); | |
1127 | io_u_qexit(&td->io_u_freelist); | |
1128 | io_u_qexit(&td->io_u_all); | |
ca09be4b | 1129 | |
94a6e1bb | 1130 | free_file_completion_logging(td); |
2e1df07d JA |
1131 | } |
1132 | ||
1133 | static int init_io_u(struct thread_data *td) | |
1134 | { | |
1135 | struct io_u *io_u; | |
9c42684e | 1136 | unsigned int max_bs, min_write; |
2e1df07d | 1137 | int cl_align, i, max_units; |
2ae0b204 | 1138 | int data_xfer = 1, err; |
2e1df07d JA |
1139 | char *p; |
1140 | ||
1141 | max_units = td->o.iodepth; | |
74f4b020 | 1142 | max_bs = td_max_bs(td); |
9c42684e | 1143 | min_write = td->o.min_bs[DDIR_WRITE]; |
2e1df07d JA |
1144 | td->orig_buffer_size = (unsigned long long) max_bs |
1145 | * (unsigned long long) max_units; | |
1146 | ||
88045e04 | 1147 | if ((td->io_ops->flags & FIO_NOIO) || !(td_read(td) || td_write(td))) |
59d8d0f5 JA |
1148 | data_xfer = 0; |
1149 | ||
2ae0b204 JA |
1150 | err = 0; |
1151 | err += io_u_rinit(&td->io_u_requeues, td->o.iodepth); | |
1152 | err += io_u_qinit(&td->io_u_freelist, td->o.iodepth); | |
1153 | err += io_u_qinit(&td->io_u_all, td->o.iodepth); | |
1154 | ||
1155 | if (err) { | |
1156 | log_err("fio: failed setting up IO queues\n"); | |
1157 | return 1; | |
1158 | } | |
1159 | ||
fd8a09b8 | 1160 | /* |
1161 | * if we may later need to do address alignment, then add any | |
1162 | * possible adjustment here so that we don't cause a buffer | |
1163 | * overflow later. this adjustment may be too much if we get | |
1164 | * lucky and the allocator gives us an aligned address. | |
1165 | */ | |
d01612f3 CM |
1166 | if (td->o.odirect || td->o.mem_align || td->o.oatomic || |
1167 | (td->io_ops->flags & FIO_RAWIO)) | |
fd8a09b8 | 1168 | td->orig_buffer_size += page_mask + td->o.mem_align; |
1169 | ||
2e1df07d JA |
1170 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { |
1171 | unsigned long bs; | |
1172 | ||
1173 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; | |
1174 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); | |
1175 | } | |
1176 | ||
1177 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { | |
1178 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
1179 | return 1; | |
1180 | } | |
1181 | ||
59d8d0f5 | 1182 | if (data_xfer && allocate_io_mem(td)) |
2e1df07d JA |
1183 | return 1; |
1184 | ||
d01612f3 | 1185 | if (td->o.odirect || td->o.mem_align || td->o.oatomic || |
2e1df07d JA |
1186 | (td->io_ops->flags & FIO_RAWIO)) |
1187 | p = PAGE_ALIGN(td->orig_buffer) + td->o.mem_align; | |
1188 | else | |
1189 | p = td->orig_buffer; | |
1190 | ||
1191 | cl_align = os_cache_line_size(); | |
1192 | ||
1193 | for (i = 0; i < max_units; i++) { | |
1194 | void *ptr; | |
1195 | ||
1196 | if (td->terminate) | |
1197 | return 1; | |
1198 | ||
1199 | ptr = fio_memalign(cl_align, sizeof(*io_u)); | |
1200 | if (!ptr) { | |
1201 | log_err("fio: unable to allocate aligned memory\n"); | |
1202 | break; | |
1203 | } | |
1204 | ||
1205 | io_u = ptr; | |
1206 | memset(io_u, 0, sizeof(*io_u)); | |
2ae0b204 | 1207 | INIT_FLIST_HEAD(&io_u->verify_list); |
2e1df07d JA |
1208 | dprint(FD_MEM, "io_u alloc %p, index %u\n", io_u, i); |
1209 | ||
59d8d0f5 | 1210 | if (data_xfer) { |
2e1df07d JA |
1211 | io_u->buf = p; |
1212 | dprint(FD_MEM, "io_u %p, mem %p\n", io_u, io_u->buf); | |
1213 | ||
1214 | if (td_write(td)) | |
9c42684e | 1215 | io_u_fill_buffer(td, io_u, min_write, max_bs); |
2e1df07d JA |
1216 | if (td_write(td) && td->o.verify_pattern_bytes) { |
1217 | /* | |
1218 | * Fill the buffer with the pattern if we are | |
1219 | * going to be doing writes. | |
1220 | */ | |
ce35b1ec | 1221 | fill_verify_pattern(td, io_u->buf, max_bs, io_u, 0, 0); |
2e1df07d JA |
1222 | } |
1223 | } | |
1224 | ||
1225 | io_u->index = i; | |
1226 | io_u->flags = IO_U_F_FREE; | |
2ae0b204 JA |
1227 | io_u_qpush(&td->io_u_freelist, io_u); |
1228 | ||
1229 | /* | |
1230 | * io_u never leaves this stack, used for iteration of all | |
1231 | * io_u buffers. | |
1232 | */ | |
1233 | io_u_qpush(&td->io_u_all, io_u); | |
c73ed246 JA |
1234 | |
1235 | if (td->io_ops->io_u_init) { | |
1236 | int ret = td->io_ops->io_u_init(td, io_u); | |
1237 | ||
1238 | if (ret) { | |
1239 | log_err("fio: failed to init engine data: %d\n", ret); | |
1240 | return 1; | |
1241 | } | |
1242 | } | |
1243 | ||
2e1df07d JA |
1244 | p += max_bs; |
1245 | } | |
1246 | ||
94a6e1bb JA |
1247 | if (init_file_completion_logging(td, max_units)) |
1248 | return 1; | |
ca09be4b | 1249 | |
2e1df07d JA |
1250 | return 0; |
1251 | } | |
1252 | ||
1253 | static int switch_ioscheduler(struct thread_data *td) | |
1254 | { | |
1255 | char tmp[256], tmp2[128]; | |
1256 | FILE *f; | |
1257 | int ret; | |
1258 | ||
1259 | if (td->io_ops->flags & FIO_DISKLESSIO) | |
1260 | return 0; | |
1261 | ||
1262 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); | |
1263 | ||
1264 | f = fopen(tmp, "r+"); | |
1265 | if (!f) { | |
1266 | if (errno == ENOENT) { | |
1267 | log_err("fio: os or kernel doesn't support IO scheduler" | |
1268 | " switching\n"); | |
1269 | return 0; | |
1270 | } | |
1271 | td_verror(td, errno, "fopen iosched"); | |
1272 | return 1; | |
1273 | } | |
1274 | ||
1275 | /* | |
1276 | * Set io scheduler. | |
1277 | */ | |
1278 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); | |
1279 | if (ferror(f) || ret != 1) { | |
1280 | td_verror(td, errno, "fwrite"); | |
1281 | fclose(f); | |
1282 | return 1; | |
1283 | } | |
1284 | ||
1285 | rewind(f); | |
1286 | ||
1287 | /* | |
1288 | * Read back and check that the selected scheduler is now the default. | |
1289 | */ | |
b44b9e45 | 1290 | memset(tmp, 0, sizeof(tmp)); |
49c6f33d | 1291 | ret = fread(tmp, sizeof(tmp), 1, f); |
2e1df07d JA |
1292 | if (ferror(f) || ret < 0) { |
1293 | td_verror(td, errno, "fread"); | |
1294 | fclose(f); | |
1295 | return 1; | |
1296 | } | |
b44b9e45 TK |
1297 | /* |
1298 | * either a list of io schedulers or "none\n" is expected. | |
1299 | */ | |
1300 | tmp[strlen(tmp) - 1] = '\0'; | |
49c6f33d | 1301 | |
2e1df07d JA |
1302 | |
1303 | sprintf(tmp2, "[%s]", td->o.ioscheduler); | |
1304 | if (!strstr(tmp, tmp2)) { | |
1305 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); | |
1306 | td_verror(td, EINVAL, "iosched_switch"); | |
1307 | fclose(f); | |
1308 | return 1; | |
1309 | } | |
1310 | ||
1311 | fclose(f); | |
1312 | return 0; | |
1313 | } | |
1314 | ||
e39c0676 | 1315 | static bool keep_running(struct thread_data *td) |
2e1df07d | 1316 | { |
77731b29 JA |
1317 | unsigned long long limit; |
1318 | ||
2e1df07d | 1319 | if (td->done) |
e39c0676 | 1320 | return false; |
2e1df07d | 1321 | if (td->o.time_based) |
e39c0676 | 1322 | return true; |
2e1df07d JA |
1323 | if (td->o.loops) { |
1324 | td->o.loops--; | |
e39c0676 | 1325 | return true; |
2e1df07d | 1326 | } |
3939fe85 | 1327 | if (exceeds_number_ios(td)) |
e39c0676 | 1328 | return false; |
26251d8d | 1329 | |
77731b29 JA |
1330 | if (td->o.io_limit) |
1331 | limit = td->o.io_limit; | |
1332 | else | |
1333 | limit = td->o.size; | |
1334 | ||
1335 | if (limit != -1ULL && ddir_rw_sum(td->io_bytes) < limit) { | |
5bd5f71a JA |
1336 | uint64_t diff; |
1337 | ||
1338 | /* | |
1339 | * If the difference is less than the minimum IO size, we | |
1340 | * are done. | |
1341 | */ | |
77731b29 | 1342 | diff = limit - ddir_rw_sum(td->io_bytes); |
74f4b020 | 1343 | if (diff < td_max_bs(td)) |
e39c0676 | 1344 | return false; |
5bd5f71a | 1345 | |
543e2e9d | 1346 | if (fio_files_done(td) && !td->o.io_limit) |
e39c0676 | 1347 | return false; |
002fe734 | 1348 | |
e39c0676 | 1349 | return true; |
5bd5f71a | 1350 | } |
2e1df07d | 1351 | |
e39c0676 | 1352 | return false; |
2e1df07d JA |
1353 | } |
1354 | ||
ce486495 | 1355 | static int exec_string(struct thread_options *o, const char *string, const char *mode) |
2e1df07d | 1356 | { |
6c9ce469 | 1357 | size_t newlen = strlen(string) + strlen(o->name) + strlen(mode) + 9 + 1; |
f491a907 | 1358 | int ret; |
2e1df07d JA |
1359 | char *str; |
1360 | ||
1361 | str = malloc(newlen); | |
ce486495 | 1362 | sprintf(str, "%s &> %s.%s.txt", string, o->name, mode); |
2e1df07d | 1363 | |
ce486495 | 1364 | log_info("%s : Saving output of %s in %s.%s.txt\n",o->name, mode, o->name, mode); |
2e1df07d JA |
1365 | ret = system(str); |
1366 | if (ret == -1) | |
1367 | log_err("fio: exec of cmd <%s> failed\n", str); | |
1368 | ||
1369 | free(str); | |
1370 | return ret; | |
1371 | } | |
1372 | ||
62167762 JC |
1373 | /* |
1374 | * Dry run to compute correct state of numberio for verification. | |
1375 | */ | |
1376 | static uint64_t do_dry_run(struct thread_data *td) | |
1377 | { | |
62167762 JC |
1378 | td_set_runstate(td, TD_RUNNING); |
1379 | ||
1380 | while ((td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || | |
e28dd2cf | 1381 | (!flist_empty(&td->trim_list)) || !io_complete_bytes_exceeded(td)) { |
62167762 JC |
1382 | struct io_u *io_u; |
1383 | int ret; | |
1384 | ||
1385 | if (td->terminate || td->done) | |
1386 | break; | |
1387 | ||
1388 | io_u = get_io_u(td); | |
1389 | if (!io_u) | |
1390 | break; | |
1391 | ||
a9da8ab2 | 1392 | io_u_set(io_u, IO_U_F_FLIGHT); |
62167762 JC |
1393 | io_u->error = 0; |
1394 | io_u->resid = 0; | |
1395 | if (ddir_rw(acct_ddir(io_u))) | |
1396 | td->io_issues[acct_ddir(io_u)]++; | |
1397 | if (ddir_rw(io_u->ddir)) { | |
1398 | io_u_mark_depth(td, 1); | |
1399 | td->ts.total_io_u[io_u->ddir]++; | |
1400 | } | |
1401 | ||
2e63e96b PV |
1402 | if (td_write(td) && io_u->ddir == DDIR_WRITE && |
1403 | td->o.do_verify && | |
1404 | td->o.verify != VERIFY_NONE && | |
1405 | !td->o.experimental_verify) | |
1406 | log_io_piece(td, io_u); | |
1407 | ||
55312f9f | 1408 | ret = io_u_sync_complete(td, io_u); |
62167762 JC |
1409 | (void) ret; |
1410 | } | |
1411 | ||
55312f9f | 1412 | return td->bytes_done[DDIR_WRITE] + td->bytes_done[DDIR_TRIM]; |
62167762 JC |
1413 | } |
1414 | ||
24660963 JA |
1415 | struct fork_data { |
1416 | struct thread_data *td; | |
1417 | struct sk_out *sk_out; | |
1418 | }; | |
1419 | ||
2e1df07d JA |
1420 | /* |
1421 | * Entry point for the thread based jobs. The process based jobs end up | |
1422 | * here as well, after a little setup. | |
1423 | */ | |
1424 | static void *thread_main(void *data) | |
1425 | { | |
24660963 | 1426 | struct fork_data *fd = data; |
95603b74 | 1427 | unsigned long long elapsed_us[DDIR_RWDIR_CNT] = { 0, }; |
24660963 | 1428 | struct thread_data *td = fd->td; |
4896473e | 1429 | struct thread_options *o = &td->o; |
24660963 | 1430 | struct sk_out *sk_out = fd->sk_out; |
2e1df07d | 1431 | int clear_state; |
28727df7 | 1432 | int ret; |
2e1df07d | 1433 | |
24660963 JA |
1434 | sk_out_assign(sk_out); |
1435 | free(fd); | |
1436 | ||
4896473e | 1437 | if (!o->use_thread) { |
2e1df07d JA |
1438 | setsid(); |
1439 | td->pid = getpid(); | |
1440 | } else | |
1441 | td->pid = gettid(); | |
1442 | ||
4896473e | 1443 | fio_local_clock_init(o->use_thread); |
5d879392 | 1444 | |
2e1df07d JA |
1445 | dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); |
1446 | ||
122c7725 JA |
1447 | if (is_backend) |
1448 | fio_server_send_start(td); | |
1449 | ||
2e1df07d JA |
1450 | INIT_FLIST_HEAD(&td->io_log_list); |
1451 | INIT_FLIST_HEAD(&td->io_hist_list); | |
1452 | INIT_FLIST_HEAD(&td->verify_list); | |
1453 | INIT_FLIST_HEAD(&td->trim_list); | |
1ae83d45 | 1454 | INIT_FLIST_HEAD(&td->next_rand_list); |
2e1df07d JA |
1455 | td->io_hist_tree = RB_ROOT; |
1456 | ||
34febb23 | 1457 | ret = mutex_cond_init_pshared(&td->io_u_lock, &td->free_cond); |
f9e5b5ee | 1458 | if (ret) { |
34febb23 | 1459 | td_verror(td, ret, "mutex_cond_init_pshared"); |
f9e5b5ee JK |
1460 | goto err; |
1461 | } | |
34febb23 | 1462 | ret = cond_init_pshared(&td->verify_cond); |
f9e5b5ee | 1463 | if (ret) { |
34febb23 | 1464 | td_verror(td, ret, "mutex_cond_pshared"); |
f9e5b5ee JK |
1465 | goto err; |
1466 | } | |
2e1df07d JA |
1467 | |
1468 | td_set_runstate(td, TD_INITIALIZED); | |
1469 | dprint(FD_MUTEX, "up startup_mutex\n"); | |
1470 | fio_mutex_up(startup_mutex); | |
1471 | dprint(FD_MUTEX, "wait on td->mutex\n"); | |
1472 | fio_mutex_down(td->mutex); | |
1473 | dprint(FD_MUTEX, "done waiting on td->mutex\n"); | |
1474 | ||
2e1df07d JA |
1475 | /* |
1476 | * A new gid requires privilege, so we need to do this before setting | |
1477 | * the uid. | |
1478 | */ | |
4896473e | 1479 | if (o->gid != -1U && setgid(o->gid)) { |
2e1df07d JA |
1480 | td_verror(td, errno, "setgid"); |
1481 | goto err; | |
1482 | } | |
4896473e | 1483 | if (o->uid != -1U && setuid(o->uid)) { |
2e1df07d JA |
1484 | td_verror(td, errno, "setuid"); |
1485 | goto err; | |
1486 | } | |
1487 | ||
2354d810 JA |
1488 | /* |
1489 | * Do this early, we don't want the compress threads to be limited | |
1490 | * to the same CPUs as the IO workers. So do this before we set | |
1491 | * any potential CPU affinity | |
1492 | */ | |
1493 | if (iolog_compress_init(td, sk_out)) | |
1494 | goto err; | |
1495 | ||
2e1df07d JA |
1496 | /* |
1497 | * If we have a gettimeofday() thread, make sure we exclude that | |
1498 | * thread from this job | |
1499 | */ | |
4896473e JA |
1500 | if (o->gtod_cpu) |
1501 | fio_cpu_clear(&o->cpumask, o->gtod_cpu); | |
2e1df07d JA |
1502 | |
1503 | /* | |
1504 | * Set affinity first, in case it has an impact on the memory | |
1505 | * allocations. | |
1506 | */ | |
b2a9e649 | 1507 | if (fio_option_is_set(o, cpumask)) { |
c2acfbac | 1508 | if (o->cpus_allowed_policy == FIO_CPUS_SPLIT) { |
30cb4c65 | 1509 | ret = fio_cpus_split(&o->cpumask, td->thread_number - 1); |
c2acfbac JA |
1510 | if (!ret) { |
1511 | log_err("fio: no CPUs set\n"); | |
1512 | log_err("fio: Try increasing number of available CPUs\n"); | |
1513 | td_verror(td, EINVAL, "cpus_split"); | |
1514 | goto err; | |
1515 | } | |
1516 | } | |
28727df7 JA |
1517 | ret = fio_setaffinity(td->pid, o->cpumask); |
1518 | if (ret == -1) { | |
4896473e JA |
1519 | td_verror(td, errno, "cpu_set_affinity"); |
1520 | goto err; | |
1521 | } | |
2e1df07d JA |
1522 | } |
1523 | ||
67bf9823 | 1524 | #ifdef CONFIG_LIBNUMA |
d0b937ed | 1525 | /* numa node setup */ |
b2a9e649 JA |
1526 | if (fio_option_is_set(o, numa_cpunodes) || |
1527 | fio_option_is_set(o, numa_memnodes)) { | |
43522848 | 1528 | struct bitmask *mask; |
d0b937ed YR |
1529 | |
1530 | if (numa_available() < 0) { | |
1531 | td_verror(td, errno, "Does not support NUMA API\n"); | |
1532 | goto err; | |
1533 | } | |
1534 | ||
b2a9e649 | 1535 | if (fio_option_is_set(o, numa_cpunodes)) { |
43522848 DG |
1536 | mask = numa_parse_nodestring(o->numa_cpunodes); |
1537 | ret = numa_run_on_node_mask(mask); | |
1538 | numa_free_nodemask(mask); | |
d0b937ed YR |
1539 | if (ret == -1) { |
1540 | td_verror(td, errno, \ | |
1541 | "numa_run_on_node_mask failed\n"); | |
1542 | goto err; | |
1543 | } | |
1544 | } | |
1545 | ||
b2a9e649 | 1546 | if (fio_option_is_set(o, numa_memnodes)) { |
43522848 DG |
1547 | mask = NULL; |
1548 | if (o->numa_memnodes) | |
1549 | mask = numa_parse_nodestring(o->numa_memnodes); | |
1550 | ||
4896473e | 1551 | switch (o->numa_mem_mode) { |
d0b937ed | 1552 | case MPOL_INTERLEAVE: |
43522848 | 1553 | numa_set_interleave_mask(mask); |
d0b937ed YR |
1554 | break; |
1555 | case MPOL_BIND: | |
43522848 | 1556 | numa_set_membind(mask); |
d0b937ed YR |
1557 | break; |
1558 | case MPOL_LOCAL: | |
1559 | numa_set_localalloc(); | |
1560 | break; | |
1561 | case MPOL_PREFERRED: | |
4896473e | 1562 | numa_set_preferred(o->numa_mem_prefer_node); |
d0b937ed YR |
1563 | break; |
1564 | case MPOL_DEFAULT: | |
1565 | default: | |
1566 | break; | |
1567 | } | |
1568 | ||
43522848 DG |
1569 | if (mask) |
1570 | numa_free_nodemask(mask); | |
1571 | ||
d0b937ed YR |
1572 | } |
1573 | } | |
1574 | #endif | |
1575 | ||
9a3f1100 JA |
1576 | if (fio_pin_memory(td)) |
1577 | goto err; | |
1578 | ||
2e1df07d JA |
1579 | /* |
1580 | * May alter parameters that init_io_u() will use, so we need to | |
1581 | * do this first. | |
1582 | */ | |
1583 | if (init_iolog(td)) | |
1584 | goto err; | |
1585 | ||
1586 | if (init_io_u(td)) | |
1587 | goto err; | |
1588 | ||
4896473e | 1589 | if (o->verify_async && verify_async_init(td)) |
2e1df07d JA |
1590 | goto err; |
1591 | ||
27d74836 JA |
1592 | if (fio_option_is_set(o, ioprio) || |
1593 | fio_option_is_set(o, ioprio_class)) { | |
28727df7 JA |
1594 | ret = ioprio_set(IOPRIO_WHO_PROCESS, 0, o->ioprio_class, o->ioprio); |
1595 | if (ret == -1) { | |
2e1df07d JA |
1596 | td_verror(td, errno, "ioprio_set"); |
1597 | goto err; | |
1598 | } | |
1599 | } | |
1600 | ||
4896473e | 1601 | if (o->cgroup && cgroup_setup(td, cgroup_list, &cgroup_mnt)) |
2e1df07d JA |
1602 | goto err; |
1603 | ||
649c10c5 | 1604 | errno = 0; |
4896473e | 1605 | if (nice(o->nice) == -1 && errno != 0) { |
2e1df07d JA |
1606 | td_verror(td, errno, "nice"); |
1607 | goto err; | |
1608 | } | |
1609 | ||
4896473e | 1610 | if (o->ioscheduler && switch_ioscheduler(td)) |
2e1df07d JA |
1611 | goto err; |
1612 | ||
4896473e | 1613 | if (!o->create_serialize && setup_files(td)) |
2e1df07d JA |
1614 | goto err; |
1615 | ||
1616 | if (td_io_init(td)) | |
1617 | goto err; | |
1618 | ||
1619 | if (init_random_map(td)) | |
1620 | goto err; | |
1621 | ||
ce486495 | 1622 | if (o->exec_prerun && exec_string(o, o->exec_prerun, (const char *)"prerun")) |
4896473e | 1623 | goto err; |
2e1df07d | 1624 | |
4896473e | 1625 | if (o->pre_read) { |
2e1df07d JA |
1626 | if (pre_read_files(td) < 0) |
1627 | goto err; | |
1628 | } | |
1629 | ||
dc5bfbb2 JA |
1630 | fio_verify_init(td); |
1631 | ||
24660963 | 1632 | if (rate_submit_init(td, sk_out)) |
a9da8ab2 JA |
1633 | goto err; |
1634 | ||
2e1df07d | 1635 | fio_gettime(&td->epoch, NULL); |
44404c5a | 1636 | fio_getrusage(&td->ru_start); |
ac28d905 JA |
1637 | memcpy(&td->bw_sample_time, &td->epoch, sizeof(td->epoch)); |
1638 | memcpy(&td->iops_sample_time, &td->epoch, sizeof(td->epoch)); | |
1639 | ||
1640 | if (o->ratemin[DDIR_READ] || o->ratemin[DDIR_WRITE] || | |
1641 | o->ratemin[DDIR_TRIM]) { | |
1642 | memcpy(&td->lastrate[DDIR_READ], &td->bw_sample_time, | |
1643 | sizeof(td->bw_sample_time)); | |
1644 | memcpy(&td->lastrate[DDIR_WRITE], &td->bw_sample_time, | |
1645 | sizeof(td->bw_sample_time)); | |
1646 | memcpy(&td->lastrate[DDIR_TRIM], &td->bw_sample_time, | |
1647 | sizeof(td->bw_sample_time)); | |
1648 | } | |
1649 | ||
2e1df07d JA |
1650 | clear_state = 0; |
1651 | while (keep_running(td)) { | |
100f49f1 JA |
1652 | uint64_t verify_bytes; |
1653 | ||
2e1df07d | 1654 | fio_gettime(&td->start, NULL); |
2e1df07d JA |
1655 | memcpy(&td->tv_cache, &td->start, sizeof(td->start)); |
1656 | ||
2e1df07d | 1657 | if (clear_state) |
ac28d905 | 1658 | clear_io_state(td, 0); |
2e1df07d JA |
1659 | |
1660 | prune_io_piece_log(td); | |
1661 | ||
62167762 JC |
1662 | if (td->o.verify_only && (td_write(td) || td_rw(td))) |
1663 | verify_bytes = do_dry_run(td); | |
095196b1 | 1664 | else { |
95b03be0 JA |
1665 | uint64_t bytes_done[DDIR_RWDIR_CNT]; |
1666 | ||
1667 | do_io(td, bytes_done); | |
1668 | ||
1669 | if (!ddir_rw_sum(bytes_done)) { | |
095196b1 | 1670 | fio_mark_td_terminate(td); |
95b03be0 JA |
1671 | verify_bytes = 0; |
1672 | } else { | |
1673 | verify_bytes = bytes_done[DDIR_WRITE] + | |
1674 | bytes_done[DDIR_TRIM]; | |
1675 | } | |
095196b1 | 1676 | } |
2e1df07d JA |
1677 | |
1678 | clear_state = 1; | |
1679 | ||
40c666c8 JA |
1680 | /* |
1681 | * Make sure we've successfully updated the rusage stats | |
1682 | * before waiting on the stat mutex. Otherwise we could have | |
1683 | * the stat thread holding stat mutex and waiting for | |
1684 | * the rusage_sem, which would never get upped because | |
1685 | * this thread is waiting for the stat mutex. | |
1686 | */ | |
1687 | check_update_rusage(td); | |
1688 | ||
e5437a07 | 1689 | fio_mutex_down(stat_mutex); |
95603b74 BF |
1690 | if (td_read(td) && td->io_bytes[DDIR_READ]) |
1691 | update_runtime(td, elapsed_us, DDIR_READ); | |
1692 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) | |
1693 | update_runtime(td, elapsed_us, DDIR_WRITE); | |
1694 | if (td_trim(td) && td->io_bytes[DDIR_TRIM]) | |
1695 | update_runtime(td, elapsed_us, DDIR_TRIM); | |
e5437a07 VT |
1696 | fio_gettime(&td->start, NULL); |
1697 | fio_mutex_up(stat_mutex); | |
2e1df07d JA |
1698 | |
1699 | if (td->error || td->terminate) | |
1700 | break; | |
1701 | ||
4896473e JA |
1702 | if (!o->do_verify || |
1703 | o->verify == VERIFY_NONE || | |
2e1df07d JA |
1704 | (td->io_ops->flags & FIO_UNIDIR)) |
1705 | continue; | |
1706 | ||
ac28d905 | 1707 | clear_io_state(td, 0); |
2e1df07d JA |
1708 | |
1709 | fio_gettime(&td->start, NULL); | |
1710 | ||
100f49f1 | 1711 | do_verify(td, verify_bytes); |
2e1df07d | 1712 | |
40c666c8 JA |
1713 | /* |
1714 | * See comment further up for why this is done here. | |
1715 | */ | |
1716 | check_update_rusage(td); | |
1717 | ||
e5437a07 | 1718 | fio_mutex_down(stat_mutex); |
95603b74 | 1719 | update_runtime(td, elapsed_us, DDIR_READ); |
e5437a07 VT |
1720 | fio_gettime(&td->start, NULL); |
1721 | fio_mutex_up(stat_mutex); | |
2e1df07d JA |
1722 | |
1723 | if (td->error || td->terminate) | |
1724 | break; | |
1725 | } | |
1726 | ||
2cea0b4c JA |
1727 | td_set_runstate(td, TD_FINISHING); |
1728 | ||
2e1df07d | 1729 | update_rusage_stat(td); |
2e1df07d | 1730 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
6eaf09d6 SL |
1731 | td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ]; |
1732 | td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE]; | |
1733 | td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM]; | |
2e1df07d | 1734 | |
ca09be4b | 1735 | if (td->o.verify_state_save && !(td->flags & TD_F_VSTATE_SAVED) && |
d264264a JA |
1736 | (td->o.verify != VERIFY_NONE && td_write(td))) |
1737 | verify_save_state(td->thread_number); | |
ca09be4b | 1738 | |
9a3f1100 JA |
1739 | fio_unpin_memory(td); |
1740 | ||
a47591e4 | 1741 | td_writeout_logs(td, true); |
2e1df07d | 1742 | |
155f2f02 | 1743 | iolog_compress_exit(td); |
103b174e | 1744 | rate_submit_exit(td); |
aee2ab67 | 1745 | |
4896473e | 1746 | if (o->exec_postrun) |
ce486495 | 1747 | exec_string(o, o->exec_postrun, (const char *)"postrun"); |
2e1df07d | 1748 | |
f9cafb12 | 1749 | if (exitall_on_terminate || (o->exitall_error && td->error)) |
2e1df07d JA |
1750 | fio_terminate_threads(td->groupid); |
1751 | ||
1752 | err: | |
1753 | if (td->error) | |
1754 | log_info("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, | |
1755 | td->verror); | |
1756 | ||
4896473e | 1757 | if (o->verify_async) |
2e1df07d JA |
1758 | verify_async_exit(td); |
1759 | ||
1760 | close_and_free_files(td); | |
2e1df07d | 1761 | cleanup_io_u(td); |
32dbca2c | 1762 | close_ioengine(td); |
2e1df07d | 1763 | cgroup_shutdown(td, &cgroup_mnt); |
ca09be4b | 1764 | verify_free_state(td); |
2e1df07d | 1765 | |
7c4d0fb7 JA |
1766 | if (td->zone_state_index) { |
1767 | int i; | |
1768 | ||
1769 | for (i = 0; i < DDIR_RWDIR_CNT; i++) | |
1770 | free(td->zone_state_index[i]); | |
1771 | free(td->zone_state_index); | |
1772 | td->zone_state_index = NULL; | |
1773 | } | |
1774 | ||
b2a9e649 | 1775 | if (fio_option_is_set(o, cpumask)) { |
8a1db9a1 JA |
1776 | ret = fio_cpuset_exit(&o->cpumask); |
1777 | if (ret) | |
1778 | td_verror(td, ret, "fio_cpuset_exit"); | |
2e1df07d JA |
1779 | } |
1780 | ||
1781 | /* | |
1782 | * do this very late, it will log file closing as well | |
1783 | */ | |
4896473e | 1784 | if (o->write_iolog_file) |
2e1df07d JA |
1785 | write_iolog_close(td); |
1786 | ||
ea66e04f JA |
1787 | fio_mutex_remove(td->mutex); |
1788 | td->mutex = NULL; | |
1789 | ||
2e1df07d | 1790 | td_set_runstate(td, TD_EXITED); |
fda2cfac JA |
1791 | |
1792 | /* | |
1793 | * Do this last after setting our runstate to exited, so we | |
1794 | * know that the stat thread is signaled. | |
1795 | */ | |
1796 | check_update_rusage(td); | |
1797 | ||
24660963 | 1798 | sk_out_drop(); |
e43606c2 | 1799 | return (void *) (uintptr_t) td->error; |
2e1df07d JA |
1800 | } |
1801 | ||
cba5460c JA |
1802 | static void dump_td_info(struct thread_data *td) |
1803 | { | |
a507505d JA |
1804 | log_err("fio: job '%s' (state=%d) hasn't exited in %lu seconds, it " |
1805 | "appears to be stuck. Doing forceful exit of this job.\n", | |
1806 | td->o.name, td->runstate, | |
cba5460c JA |
1807 | (unsigned long) time_since_now(&td->terminate_time)); |
1808 | } | |
1809 | ||
2e1df07d JA |
1810 | /* |
1811 | * Run over the job map and reap the threads that have exited, if any. | |
1812 | */ | |
1813 | static void reap_threads(unsigned int *nr_running, unsigned int *t_rate, | |
1814 | unsigned int *m_rate) | |
1815 | { | |
1816 | struct thread_data *td; | |
1817 | unsigned int cputhreads, realthreads, pending; | |
1818 | int i, status, ret; | |
1819 | ||
1820 | /* | |
1821 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1822 | */ | |
1823 | realthreads = pending = cputhreads = 0; | |
1824 | for_each_td(td, i) { | |
1825 | int flags = 0; | |
1826 | ||
1827 | /* | |
1828 | * ->io_ops is NULL for a thread that has closed its | |
1829 | * io engine | |
1830 | */ | |
1831 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) | |
1832 | cputhreads++; | |
1833 | else | |
1834 | realthreads++; | |
1835 | ||
1836 | if (!td->pid) { | |
1837 | pending++; | |
1838 | continue; | |
1839 | } | |
1840 | if (td->runstate == TD_REAPED) | |
1841 | continue; | |
1842 | if (td->o.use_thread) { | |
1843 | if (td->runstate == TD_EXITED) { | |
1844 | td_set_runstate(td, TD_REAPED); | |
1845 | goto reaped; | |
1846 | } | |
1847 | continue; | |
1848 | } | |
1849 | ||
1850 | flags = WNOHANG; | |
1851 | if (td->runstate == TD_EXITED) | |
1852 | flags = 0; | |
1853 | ||
1854 | /* | |
1855 | * check if someone quit or got killed in an unusual way | |
1856 | */ | |
1857 | ret = waitpid(td->pid, &status, flags); | |
1858 | if (ret < 0) { | |
1859 | if (errno == ECHILD) { | |
1860 | log_err("fio: pid=%d disappeared %d\n", | |
1861 | (int) td->pid, td->runstate); | |
a5e371a6 | 1862 | td->sig = ECHILD; |
2e1df07d JA |
1863 | td_set_runstate(td, TD_REAPED); |
1864 | goto reaped; | |
1865 | } | |
1866 | perror("waitpid"); | |
1867 | } else if (ret == td->pid) { | |
1868 | if (WIFSIGNALED(status)) { | |
1869 | int sig = WTERMSIG(status); | |
1870 | ||
36d80bc7 | 1871 | if (sig != SIGTERM && sig != SIGUSR2) |
2e1df07d JA |
1872 | log_err("fio: pid=%d, got signal=%d\n", |
1873 | (int) td->pid, sig); | |
a5e371a6 | 1874 | td->sig = sig; |
2e1df07d JA |
1875 | td_set_runstate(td, TD_REAPED); |
1876 | goto reaped; | |
1877 | } | |
1878 | if (WIFEXITED(status)) { | |
1879 | if (WEXITSTATUS(status) && !td->error) | |
1880 | td->error = WEXITSTATUS(status); | |
1881 | ||
1882 | td_set_runstate(td, TD_REAPED); | |
1883 | goto reaped; | |
1884 | } | |
1885 | } | |
1886 | ||
cba5460c JA |
1887 | /* |
1888 | * If the job is stuck, do a forceful timeout of it and | |
1889 | * move on. | |
1890 | */ | |
1891 | if (td->terminate && | |
2c45a4ac | 1892 | td->runstate < TD_FSYNCING && |
cba5460c JA |
1893 | time_since_now(&td->terminate_time) >= FIO_REAP_TIMEOUT) { |
1894 | dump_td_info(td); | |
1895 | td_set_runstate(td, TD_REAPED); | |
1896 | goto reaped; | |
1897 | } | |
1898 | ||
2e1df07d JA |
1899 | /* |
1900 | * thread is not dead, continue | |
1901 | */ | |
1902 | pending++; | |
1903 | continue; | |
1904 | reaped: | |
1905 | (*nr_running)--; | |
342f4be4 JA |
1906 | (*m_rate) -= ddir_rw_sum(td->o.ratemin); |
1907 | (*t_rate) -= ddir_rw_sum(td->o.rate); | |
2e1df07d JA |
1908 | if (!td->pid) |
1909 | pending--; | |
1910 | ||
1911 | if (td->error) | |
1912 | exit_value++; | |
1913 | ||
1914 | done_secs += mtime_since_now(&td->epoch) / 1000; | |
4a88752a | 1915 | profile_td_exit(td); |
2e1df07d JA |
1916 | } |
1917 | ||
1918 | if (*nr_running == cputhreads && !pending && realthreads) | |
1919 | fio_terminate_threads(TERMINATE_ALL); | |
1920 | } | |
1921 | ||
e39c0676 | 1922 | static bool __check_trigger_file(void) |
ca09be4b JA |
1923 | { |
1924 | struct stat sb; | |
1925 | ||
1926 | if (!trigger_file) | |
e39c0676 | 1927 | return false; |
ca09be4b JA |
1928 | |
1929 | if (stat(trigger_file, &sb)) | |
e39c0676 | 1930 | return false; |
ca09be4b JA |
1931 | |
1932 | if (unlink(trigger_file) < 0) | |
1933 | log_err("fio: failed to unlink %s: %s\n", trigger_file, | |
1934 | strerror(errno)); | |
1935 | ||
e39c0676 | 1936 | return true; |
ca09be4b JA |
1937 | } |
1938 | ||
e39c0676 | 1939 | static bool trigger_timedout(void) |
ca09be4b JA |
1940 | { |
1941 | if (trigger_timeout) | |
1942 | return time_since_genesis() >= trigger_timeout; | |
1943 | ||
e39c0676 | 1944 | return false; |
ca09be4b JA |
1945 | } |
1946 | ||
1947 | void exec_trigger(const char *cmd) | |
1948 | { | |
1949 | int ret; | |
1950 | ||
1951 | if (!cmd) | |
1952 | return; | |
1953 | ||
1954 | ret = system(cmd); | |
1955 | if (ret == -1) | |
1956 | log_err("fio: failed executing %s trigger\n", cmd); | |
1957 | } | |
1958 | ||
1959 | void check_trigger_file(void) | |
1960 | { | |
1961 | if (__check_trigger_file() || trigger_timedout()) { | |
796fb3ce JA |
1962 | if (nr_clients) |
1963 | fio_clients_send_trigger(trigger_remote_cmd); | |
1964 | else { | |
d264264a | 1965 | verify_save_state(IO_LIST_ALL); |
ca09be4b JA |
1966 | fio_terminate_threads(TERMINATE_ALL); |
1967 | exec_trigger(trigger_cmd); | |
1968 | } | |
1969 | } | |
1970 | } | |
1971 | ||
1972 | static int fio_verify_load_state(struct thread_data *td) | |
1973 | { | |
1974 | int ret; | |
1975 | ||
1976 | if (!td->o.verify_state) | |
1977 | return 0; | |
1978 | ||
1979 | if (is_backend) { | |
1980 | void *data; | |
1981 | ||
1982 | ret = fio_server_get_verify_state(td->o.name, | |
94a6e1bb | 1983 | td->thread_number - 1, &data); |
ca09be4b | 1984 | if (!ret) |
94a6e1bb | 1985 | verify_assign_state(td, data); |
ca09be4b JA |
1986 | } else |
1987 | ret = verify_load_state(td, "local"); | |
1988 | ||
1989 | return ret; | |
1990 | } | |
1991 | ||
06464907 JA |
1992 | static void do_usleep(unsigned int usecs) |
1993 | { | |
1994 | check_for_running_stats(); | |
ca09be4b | 1995 | check_trigger_file(); |
06464907 JA |
1996 | usleep(usecs); |
1997 | } | |
1998 | ||
e39c0676 | 1999 | static bool check_mount_writes(struct thread_data *td) |
e81ecca3 JA |
2000 | { |
2001 | struct fio_file *f; | |
2002 | unsigned int i; | |
2003 | ||
2004 | if (!td_write(td) || td->o.allow_mounted_write) | |
e39c0676 | 2005 | return false; |
e81ecca3 JA |
2006 | |
2007 | for_each_file(td, f, i) { | |
2008 | if (f->filetype != FIO_TYPE_BD) | |
2009 | continue; | |
2010 | if (device_is_mounted(f->file_name)) | |
2011 | goto mounted; | |
2012 | } | |
2013 | ||
e39c0676 | 2014 | return false; |
e81ecca3 JA |
2015 | mounted: |
2016 | log_err("fio: %s appears mounted, and 'allow_mounted_write' isn't set. Aborting.", f->file_name); | |
e39c0676 | 2017 | return true; |
e81ecca3 JA |
2018 | } |
2019 | ||
9cc8cb91 AK |
2020 | static bool waitee_running(struct thread_data *me) |
2021 | { | |
2022 | const char *waitee = me->o.wait_for; | |
2023 | const char *self = me->o.name; | |
2024 | struct thread_data *td; | |
2025 | int i; | |
2026 | ||
2027 | if (!waitee) | |
2028 | return false; | |
2029 | ||
2030 | for_each_td(td, i) { | |
2031 | if (!strcmp(td->o.name, self) || strcmp(td->o.name, waitee)) | |
2032 | continue; | |
2033 | ||
2034 | if (td->runstate < TD_EXITED) { | |
2035 | dprint(FD_PROCESS, "%s fenced by %s(%s)\n", | |
2036 | self, td->o.name, | |
2037 | runstate_to_name(td->runstate)); | |
2038 | return true; | |
2039 | } | |
2040 | } | |
2041 | ||
2042 | dprint(FD_PROCESS, "%s: %s completed, can run\n", self, waitee); | |
2043 | return false; | |
2044 | } | |
2045 | ||
2e1df07d JA |
2046 | /* |
2047 | * Main function for kicking off and reaping jobs, as needed. | |
2048 | */ | |
24660963 | 2049 | static void run_threads(struct sk_out *sk_out) |
2e1df07d JA |
2050 | { |
2051 | struct thread_data *td; | |
2e1df07d | 2052 | unsigned int i, todo, nr_running, m_rate, t_rate, nr_started; |
0de5b26f | 2053 | uint64_t spent; |
2e1df07d | 2054 | |
2e1df07d JA |
2055 | if (fio_gtod_offload && fio_start_gtod_thread()) |
2056 | return; | |
334185e9 | 2057 | |
f2a2ce0e | 2058 | fio_idle_prof_init(); |
2e1df07d JA |
2059 | |
2060 | set_sig_handlers(); | |
2061 | ||
3a5f6bde JA |
2062 | nr_thread = nr_process = 0; |
2063 | for_each_td(td, i) { | |
e81ecca3 JA |
2064 | if (check_mount_writes(td)) |
2065 | return; | |
3a5f6bde JA |
2066 | if (td->o.use_thread) |
2067 | nr_thread++; | |
2068 | else | |
2069 | nr_process++; | |
2070 | } | |
2071 | ||
01cfefcc | 2072 | if (output_format & FIO_OUTPUT_NORMAL) { |
2e1df07d JA |
2073 | log_info("Starting "); |
2074 | if (nr_thread) | |
2075 | log_info("%d thread%s", nr_thread, | |
2076 | nr_thread > 1 ? "s" : ""); | |
2077 | if (nr_process) { | |
2078 | if (nr_thread) | |
2079 | log_info(" and "); | |
2080 | log_info("%d process%s", nr_process, | |
2081 | nr_process > 1 ? "es" : ""); | |
2082 | } | |
2083 | log_info("\n"); | |
e411c301 | 2084 | log_info_flush(); |
2e1df07d JA |
2085 | } |
2086 | ||
2087 | todo = thread_number; | |
2088 | nr_running = 0; | |
2089 | nr_started = 0; | |
2090 | m_rate = t_rate = 0; | |
2091 | ||
2092 | for_each_td(td, i) { | |
2093 | print_status_init(td->thread_number - 1); | |
2094 | ||
2095 | if (!td->o.create_serialize) | |
2096 | continue; | |
2097 | ||
ca09be4b JA |
2098 | if (fio_verify_load_state(td)) |
2099 | goto reap; | |
2100 | ||
2e1df07d JA |
2101 | /* |
2102 | * do file setup here so it happens sequentially, | |
2103 | * we don't want X number of threads getting their | |
2104 | * client data interspersed on disk | |
2105 | */ | |
2106 | if (setup_files(td)) { | |
ca09be4b | 2107 | reap: |
2e1df07d JA |
2108 | exit_value++; |
2109 | if (td->error) | |
2110 | log_err("fio: pid=%d, err=%d/%s\n", | |
2111 | (int) td->pid, td->error, td->verror); | |
2112 | td_set_runstate(td, TD_REAPED); | |
2113 | todo--; | |
2114 | } else { | |
2115 | struct fio_file *f; | |
2116 | unsigned int j; | |
2117 | ||
2118 | /* | |
2119 | * for sharing to work, each job must always open | |
2120 | * its own files. so close them, if we opened them | |
2121 | * for creation | |
2122 | */ | |
2123 | for_each_file(td, f, j) { | |
2124 | if (fio_file_open(f)) | |
2125 | td_io_close_file(td, f); | |
2126 | } | |
2127 | } | |
2128 | } | |
2129 | ||
f2a2ce0e HL |
2130 | /* start idle threads before io threads start to run */ |
2131 | fio_idle_prof_start(); | |
2132 | ||
2e1df07d JA |
2133 | set_genesis_time(); |
2134 | ||
2135 | while (todo) { | |
2136 | struct thread_data *map[REAL_MAX_JOBS]; | |
2137 | struct timeval this_start; | |
2138 | int this_jobs = 0, left; | |
d7982dd0 | 2139 | struct fork_data *fd; |
2e1df07d JA |
2140 | |
2141 | /* | |
2142 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
2143 | */ | |
2144 | for_each_td(td, i) { | |
2145 | if (td->runstate != TD_NOT_CREATED) | |
2146 | continue; | |
2147 | ||
2148 | /* | |
2149 | * never got a chance to start, killed by other | |
2150 | * thread for some reason | |
2151 | */ | |
2152 | if (td->terminate) { | |
2153 | todo--; | |
2154 | continue; | |
2155 | } | |
2156 | ||
2157 | if (td->o.start_delay) { | |
0de5b26f | 2158 | spent = utime_since_genesis(); |
2e1df07d | 2159 | |
74454ce4 | 2160 | if (td->o.start_delay > spent) |
2e1df07d JA |
2161 | continue; |
2162 | } | |
2163 | ||
2164 | if (td->o.stonewall && (nr_started || nr_running)) { | |
2165 | dprint(FD_PROCESS, "%s: stonewall wait\n", | |
2166 | td->o.name); | |
2167 | break; | |
2168 | } | |
2169 | ||
9cc8cb91 AK |
2170 | if (waitee_running(td)) { |
2171 | dprint(FD_PROCESS, "%s: waiting for %s\n", | |
2172 | td->o.name, td->o.wait_for); | |
5c74fc76 | 2173 | continue; |
9cc8cb91 AK |
2174 | } |
2175 | ||
2e1df07d JA |
2176 | init_disk_util(td); |
2177 | ||
c97f1ad6 JA |
2178 | td->rusage_sem = fio_mutex_init(FIO_MUTEX_LOCKED); |
2179 | td->update_rusage = 0; | |
2180 | ||
2e1df07d JA |
2181 | /* |
2182 | * Set state to created. Thread will transition | |
2183 | * to TD_INITIALIZED when it's done setting up. | |
2184 | */ | |
2185 | td_set_runstate(td, TD_CREATED); | |
2186 | map[this_jobs++] = td; | |
2187 | nr_started++; | |
2188 | ||
d7982dd0 JK |
2189 | fd = calloc(1, sizeof(*fd)); |
2190 | fd->td = td; | |
2191 | fd->sk_out = sk_out; | |
2192 | ||
2e1df07d JA |
2193 | if (td->o.use_thread) { |
2194 | int ret; | |
2195 | ||
2196 | dprint(FD_PROCESS, "will pthread_create\n"); | |
2197 | ret = pthread_create(&td->thread, NULL, | |
24660963 | 2198 | thread_main, fd); |
2e1df07d JA |
2199 | if (ret) { |
2200 | log_err("pthread_create: %s\n", | |
2201 | strerror(ret)); | |
24660963 | 2202 | free(fd); |
2e1df07d JA |
2203 | nr_started--; |
2204 | break; | |
2205 | } | |
2206 | ret = pthread_detach(td->thread); | |
2207 | if (ret) | |
2208 | log_err("pthread_detach: %s", | |
2209 | strerror(ret)); | |
2210 | } else { | |
2211 | pid_t pid; | |
2212 | dprint(FD_PROCESS, "will fork\n"); | |
2213 | pid = fork(); | |
2214 | if (!pid) { | |
d7982dd0 | 2215 | int ret; |
2e1df07d | 2216 | |
d7982dd0 | 2217 | ret = (int)(uintptr_t)thread_main(fd); |
2e1df07d JA |
2218 | _exit(ret); |
2219 | } else if (i == fio_debug_jobno) | |
2220 | *fio_debug_jobp = pid; | |
2221 | } | |
2222 | dprint(FD_MUTEX, "wait on startup_mutex\n"); | |
09400a60 | 2223 | if (fio_mutex_down_timeout(startup_mutex, 10000)) { |
2e1df07d JA |
2224 | log_err("fio: job startup hung? exiting.\n"); |
2225 | fio_terminate_threads(TERMINATE_ALL); | |
2226 | fio_abort = 1; | |
2227 | nr_started--; | |
2228 | break; | |
2229 | } | |
2230 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); | |
2231 | } | |
2232 | ||
2233 | /* | |
2234 | * Wait for the started threads to transition to | |
2235 | * TD_INITIALIZED. | |
2236 | */ | |
2237 | fio_gettime(&this_start, NULL); | |
2238 | left = this_jobs; | |
2239 | while (left && !fio_abort) { | |
2240 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) | |
2241 | break; | |
2242 | ||
06464907 | 2243 | do_usleep(100000); |
2e1df07d JA |
2244 | |
2245 | for (i = 0; i < this_jobs; i++) { | |
2246 | td = map[i]; | |
2247 | if (!td) | |
2248 | continue; | |
2249 | if (td->runstate == TD_INITIALIZED) { | |
2250 | map[i] = NULL; | |
2251 | left--; | |
2252 | } else if (td->runstate >= TD_EXITED) { | |
2253 | map[i] = NULL; | |
2254 | left--; | |
2255 | todo--; | |
2256 | nr_running++; /* work-around... */ | |
2257 | } | |
2258 | } | |
2259 | } | |
2260 | ||
2261 | if (left) { | |
4e87c37a JA |
2262 | log_err("fio: %d job%s failed to start\n", left, |
2263 | left > 1 ? "s" : ""); | |
2e1df07d JA |
2264 | for (i = 0; i < this_jobs; i++) { |
2265 | td = map[i]; | |
2266 | if (!td) | |
2267 | continue; | |
2268 | kill(td->pid, SIGTERM); | |
2269 | } | |
2270 | break; | |
2271 | } | |
2272 | ||
2273 | /* | |
2274 | * start created threads (TD_INITIALIZED -> TD_RUNNING). | |
2275 | */ | |
2276 | for_each_td(td, i) { | |
2277 | if (td->runstate != TD_INITIALIZED) | |
2278 | continue; | |
2279 | ||
2280 | if (in_ramp_time(td)) | |
2281 | td_set_runstate(td, TD_RAMP); | |
2282 | else | |
2283 | td_set_runstate(td, TD_RUNNING); | |
2284 | nr_running++; | |
2285 | nr_started--; | |
342f4be4 JA |
2286 | m_rate += ddir_rw_sum(td->o.ratemin); |
2287 | t_rate += ddir_rw_sum(td->o.rate); | |
2e1df07d JA |
2288 | todo--; |
2289 | fio_mutex_up(td->mutex); | |
2290 | } | |
2291 | ||
2292 | reap_threads(&nr_running, &t_rate, &m_rate); | |
2293 | ||
122c7725 | 2294 | if (todo) |
06464907 | 2295 | do_usleep(100000); |
2e1df07d JA |
2296 | } |
2297 | ||
2298 | while (nr_running) { | |
2299 | reap_threads(&nr_running, &t_rate, &m_rate); | |
06464907 | 2300 | do_usleep(10000); |
2e1df07d JA |
2301 | } |
2302 | ||
f2a2ce0e HL |
2303 | fio_idle_prof_stop(); |
2304 | ||
2e1df07d | 2305 | update_io_ticks(); |
2e1df07d JA |
2306 | } |
2307 | ||
27357187 JA |
2308 | static void free_disk_util(void) |
2309 | { | |
27357187 | 2310 | disk_util_prune_entries(); |
a39fb9ea | 2311 | helper_thread_destroy(); |
2e1df07d JA |
2312 | } |
2313 | ||
24660963 | 2314 | int fio_backend(struct sk_out *sk_out) |
2e1df07d JA |
2315 | { |
2316 | struct thread_data *td; | |
2317 | int i; | |
2318 | ||
2319 | if (exec_profile) { | |
2320 | if (load_profile(exec_profile)) | |
2321 | return 1; | |
2322 | free(exec_profile); | |
2323 | exec_profile = NULL; | |
2324 | } | |
2325 | if (!thread_number) | |
2326 | return 0; | |
2327 | ||
2328 | if (write_bw_log) { | |
aee2ab67 JA |
2329 | struct log_params p = { |
2330 | .log_type = IO_LOG_TYPE_BW, | |
2331 | }; | |
2332 | ||
2333 | setup_log(&agg_io_log[DDIR_READ], &p, "agg-read_bw.log"); | |
2334 | setup_log(&agg_io_log[DDIR_WRITE], &p, "agg-write_bw.log"); | |
2335 | setup_log(&agg_io_log[DDIR_TRIM], &p, "agg-trim_bw.log"); | |
2e1df07d JA |
2336 | } |
2337 | ||
521da527 | 2338 | startup_mutex = fio_mutex_init(FIO_MUTEX_LOCKED); |
2e1df07d JA |
2339 | if (startup_mutex == NULL) |
2340 | return 1; | |
2e1df07d JA |
2341 | |
2342 | set_genesis_time(); | |
cef9175e | 2343 | stat_init(); |
a39fb9ea | 2344 | helper_thread_create(startup_mutex, sk_out); |
2e1df07d JA |
2345 | |
2346 | cgroup_list = smalloc(sizeof(*cgroup_list)); | |
2347 | INIT_FLIST_HEAD(cgroup_list); | |
2348 | ||
24660963 | 2349 | run_threads(sk_out); |
2e1df07d | 2350 | |
a39fb9ea | 2351 | helper_thread_exit(); |
8aab824f | 2352 | |
2e1df07d | 2353 | if (!fio_abort) { |
83f7b64e | 2354 | __show_run_stats(); |
2e1df07d | 2355 | if (write_bw_log) { |
cb7e0ace JA |
2356 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
2357 | struct io_log *log = agg_io_log[i]; | |
2358 | ||
3a5db920 | 2359 | flush_log(log, 0); |
518dac09 | 2360 | free_log(log); |
cb7e0ace | 2361 | } |
2e1df07d JA |
2362 | } |
2363 | } | |
2364 | ||
fda2cfac | 2365 | for_each_td(td, i) { |
2e1df07d | 2366 | fio_options_free(td); |
8049adc1 JA |
2367 | if (td->rusage_sem) { |
2368 | fio_mutex_remove(td->rusage_sem); | |
2369 | td->rusage_sem = NULL; | |
2370 | } | |
fda2cfac | 2371 | } |
2e1df07d | 2372 | |
a462baef | 2373 | free_disk_util(); |
2e1df07d JA |
2374 | cgroup_kill(cgroup_list); |
2375 | sfree(cgroup_list); | |
2376 | sfree(cgroup_mnt); | |
2377 | ||
2378 | fio_mutex_remove(startup_mutex); | |
cef9175e | 2379 | stat_exit(); |
2e1df07d JA |
2380 | return exit_value; |
2381 | } |