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 JA |
37 | #include <sys/mman.h> |
38 | ||
39 | #include "fio.h" | |
a5e0ee11 O |
40 | #ifndef FIO_NO_HAVE_SHM_H |
41 | #include <sys/shm.h> | |
42 | #endif | |
2e1df07d JA |
43 | #include "hash.h" |
44 | #include "smalloc.h" | |
45 | #include "verify.h" | |
46 | #include "trim.h" | |
47 | #include "diskutil.h" | |
48 | #include "cgroup.h" | |
49 | #include "profile.h" | |
50 | #include "lib/rand.h" | |
51 | #include "memalign.h" | |
52 | #include "server.h" | |
44404c5a | 53 | #include "lib/getrusage.h" |
f2a2ce0e | 54 | #include "idletime.h" |
002fe734 | 55 | #include "err.h" |
2e1df07d JA |
56 | |
57 | static pthread_t disk_util_thread; | |
9ec7779f | 58 | static struct fio_mutex *disk_thread_mutex; |
2e1df07d | 59 | static struct fio_mutex *startup_mutex; |
2e1df07d JA |
60 | static struct flist_head *cgroup_list; |
61 | static char *cgroup_mnt; | |
62 | static int exit_value; | |
63 | static volatile int fio_abort; | |
3a5f6bde JA |
64 | static unsigned int nr_process = 0; |
65 | static unsigned int nr_thread = 0; | |
2e1df07d | 66 | |
6eaf09d6 | 67 | struct io_log *agg_io_log[DDIR_RWDIR_CNT]; |
2e1df07d | 68 | |
a3efc919 JA |
69 | int groupid = 0; |
70 | unsigned int thread_number = 0; | |
108fea77 | 71 | unsigned int stat_number = 0; |
a3efc919 JA |
72 | int shm_id = 0; |
73 | int temp_stall_ts; | |
74 | unsigned long done_secs = 0; | |
27357187 | 75 | volatile int disk_util_exit = 0; |
a3efc919 | 76 | |
2e1df07d | 77 | #define PAGE_ALIGN(buf) \ |
e43606c2 | 78 | (char *) (((uintptr_t) (buf) + page_mask) & ~page_mask) |
2e1df07d JA |
79 | |
80 | #define JOB_START_TIMEOUT (5 * 1000) | |
81 | ||
82 | static void sig_int(int sig) | |
83 | { | |
84 | if (threads) { | |
85 | if (is_backend) | |
86 | fio_server_got_signal(sig); | |
87 | else { | |
88 | log_info("\nfio: terminating on signal %d\n", sig); | |
89 | fflush(stdout); | |
90 | exit_value = 128; | |
91 | } | |
92 | ||
93 | fio_terminate_threads(TERMINATE_ALL); | |
94 | } | |
95 | } | |
96 | ||
4c6d91e8 JA |
97 | static void sig_show_status(int sig) |
98 | { | |
99 | show_running_run_stats(); | |
100 | } | |
101 | ||
2e1df07d JA |
102 | static void set_sig_handlers(void) |
103 | { | |
104 | struct sigaction act; | |
105 | ||
106 | memset(&act, 0, sizeof(act)); | |
107 | act.sa_handler = sig_int; | |
108 | act.sa_flags = SA_RESTART; | |
109 | sigaction(SIGINT, &act, NULL); | |
110 | ||
111 | memset(&act, 0, sizeof(act)); | |
112 | act.sa_handler = sig_int; | |
113 | act.sa_flags = SA_RESTART; | |
114 | sigaction(SIGTERM, &act, NULL); | |
115 | ||
2f694507 BC |
116 | /* Windows uses SIGBREAK as a quit signal from other applications */ |
117 | #ifdef WIN32 | |
118 | memset(&act, 0, sizeof(act)); | |
119 | act.sa_handler = sig_int; | |
120 | act.sa_flags = SA_RESTART; | |
121 | sigaction(SIGBREAK, &act, NULL); | |
122 | #endif | |
123 | ||
4c6d91e8 JA |
124 | memset(&act, 0, sizeof(act)); |
125 | act.sa_handler = sig_show_status; | |
126 | act.sa_flags = SA_RESTART; | |
127 | sigaction(SIGUSR1, &act, NULL); | |
128 | ||
2e1df07d JA |
129 | if (is_backend) { |
130 | memset(&act, 0, sizeof(act)); | |
131 | act.sa_handler = sig_int; | |
132 | act.sa_flags = SA_RESTART; | |
133 | sigaction(SIGPIPE, &act, NULL); | |
134 | } | |
135 | } | |
136 | ||
137 | /* | |
138 | * Check if we are above the minimum rate given. | |
139 | */ | |
140 | static int __check_min_rate(struct thread_data *td, struct timeval *now, | |
141 | enum fio_ddir ddir) | |
142 | { | |
143 | unsigned long long bytes = 0; | |
144 | unsigned long iops = 0; | |
145 | unsigned long spent; | |
146 | unsigned long rate; | |
147 | unsigned int ratemin = 0; | |
148 | unsigned int rate_iops = 0; | |
149 | unsigned int rate_iops_min = 0; | |
150 | ||
151 | assert(ddir_rw(ddir)); | |
152 | ||
153 | if (!td->o.ratemin[ddir] && !td->o.rate_iops_min[ddir]) | |
154 | return 0; | |
155 | ||
156 | /* | |
157 | * allow a 2 second settle period in the beginning | |
158 | */ | |
159 | if (mtime_since(&td->start, now) < 2000) | |
160 | return 0; | |
161 | ||
162 | iops += td->this_io_blocks[ddir]; | |
163 | bytes += td->this_io_bytes[ddir]; | |
164 | ratemin += td->o.ratemin[ddir]; | |
165 | rate_iops += td->o.rate_iops[ddir]; | |
166 | rate_iops_min += td->o.rate_iops_min[ddir]; | |
167 | ||
168 | /* | |
169 | * if rate blocks is set, sample is running | |
170 | */ | |
171 | if (td->rate_bytes[ddir] || td->rate_blocks[ddir]) { | |
172 | spent = mtime_since(&td->lastrate[ddir], now); | |
173 | if (spent < td->o.ratecycle) | |
174 | return 0; | |
175 | ||
176 | if (td->o.rate[ddir]) { | |
177 | /* | |
178 | * check bandwidth specified rate | |
179 | */ | |
180 | if (bytes < td->rate_bytes[ddir]) { | |
181 | log_err("%s: min rate %u not met\n", td->o.name, | |
182 | ratemin); | |
183 | return 1; | |
184 | } else { | |
49cba9b3 JA |
185 | if (spent) |
186 | rate = ((bytes - td->rate_bytes[ddir]) * 1000) / spent; | |
187 | else | |
188 | rate = 0; | |
189 | ||
2e1df07d JA |
190 | if (rate < ratemin || |
191 | bytes < td->rate_bytes[ddir]) { | |
192 | log_err("%s: min rate %u not met, got" | |
193 | " %luKB/sec\n", td->o.name, | |
194 | ratemin, rate); | |
195 | return 1; | |
196 | } | |
197 | } | |
198 | } else { | |
199 | /* | |
200 | * checks iops specified rate | |
201 | */ | |
202 | if (iops < rate_iops) { | |
203 | log_err("%s: min iops rate %u not met\n", | |
204 | td->o.name, rate_iops); | |
205 | return 1; | |
206 | } else { | |
4c707a3b JA |
207 | if (spent) |
208 | rate = ((iops - td->rate_blocks[ddir]) * 1000) / spent; | |
209 | else | |
210 | rate = 0; | |
211 | ||
2e1df07d JA |
212 | if (rate < rate_iops_min || |
213 | iops < td->rate_blocks[ddir]) { | |
214 | log_err("%s: min iops rate %u not met," | |
215 | " got %lu\n", td->o.name, | |
216 | rate_iops_min, rate); | |
217 | } | |
218 | } | |
219 | } | |
220 | } | |
221 | ||
222 | td->rate_bytes[ddir] = bytes; | |
223 | td->rate_blocks[ddir] = iops; | |
224 | memcpy(&td->lastrate[ddir], now, sizeof(*now)); | |
225 | return 0; | |
226 | } | |
227 | ||
228 | static int check_min_rate(struct thread_data *td, struct timeval *now, | |
100f49f1 | 229 | uint64_t *bytes_done) |
2e1df07d JA |
230 | { |
231 | int ret = 0; | |
232 | ||
6eaf09d6 SL |
233 | if (bytes_done[DDIR_READ]) |
234 | ret |= __check_min_rate(td, now, DDIR_READ); | |
235 | if (bytes_done[DDIR_WRITE]) | |
236 | ret |= __check_min_rate(td, now, DDIR_WRITE); | |
237 | if (bytes_done[DDIR_TRIM]) | |
238 | ret |= __check_min_rate(td, now, DDIR_TRIM); | |
2e1df07d JA |
239 | |
240 | return ret; | |
241 | } | |
242 | ||
243 | /* | |
244 | * When job exits, we can cancel the in-flight IO if we are using async | |
245 | * io. Attempt to do so. | |
246 | */ | |
247 | static void cleanup_pending_aio(struct thread_data *td) | |
248 | { | |
2e1df07d JA |
249 | int r; |
250 | ||
251 | /* | |
252 | * get immediately available events, if any | |
253 | */ | |
254 | r = io_u_queued_complete(td, 0, NULL); | |
255 | if (r < 0) | |
256 | return; | |
257 | ||
258 | /* | |
259 | * now cancel remaining active events | |
260 | */ | |
261 | if (td->io_ops->cancel) { | |
2ae0b204 JA |
262 | struct io_u *io_u; |
263 | int i; | |
2e1df07d | 264 | |
2ae0b204 JA |
265 | io_u_qiter(&td->io_u_all, io_u, i) { |
266 | if (io_u->flags & IO_U_F_FLIGHT) { | |
2e1df07d JA |
267 | r = td->io_ops->cancel(td, io_u); |
268 | if (!r) | |
269 | put_io_u(td, io_u); | |
270 | } | |
271 | } | |
272 | } | |
273 | ||
274 | if (td->cur_depth) | |
275 | r = io_u_queued_complete(td, td->cur_depth, NULL); | |
276 | } | |
277 | ||
278 | /* | |
279 | * Helper to handle the final sync of a file. Works just like the normal | |
280 | * io path, just does everything sync. | |
281 | */ | |
282 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
283 | { | |
284 | struct io_u *io_u = __get_io_u(td); | |
285 | int ret; | |
286 | ||
287 | if (!io_u) | |
288 | return 1; | |
289 | ||
290 | io_u->ddir = DDIR_SYNC; | |
291 | io_u->file = f; | |
292 | ||
293 | if (td_io_prep(td, io_u)) { | |
294 | put_io_u(td, io_u); | |
295 | return 1; | |
296 | } | |
297 | ||
298 | requeue: | |
299 | ret = td_io_queue(td, io_u); | |
300 | if (ret < 0) { | |
301 | td_verror(td, io_u->error, "td_io_queue"); | |
302 | put_io_u(td, io_u); | |
303 | return 1; | |
304 | } else if (ret == FIO_Q_QUEUED) { | |
305 | if (io_u_queued_complete(td, 1, NULL) < 0) | |
306 | return 1; | |
307 | } else if (ret == FIO_Q_COMPLETED) { | |
308 | if (io_u->error) { | |
309 | td_verror(td, io_u->error, "td_io_queue"); | |
310 | return 1; | |
311 | } | |
312 | ||
313 | if (io_u_sync_complete(td, io_u, NULL) < 0) | |
314 | return 1; | |
315 | } else if (ret == FIO_Q_BUSY) { | |
316 | if (td_io_commit(td)) | |
317 | return 1; | |
318 | goto requeue; | |
319 | } | |
320 | ||
321 | return 0; | |
322 | } | |
a3efc919 | 323 | |
61ee0f86 JA |
324 | static int fio_file_fsync(struct thread_data *td, struct fio_file *f) |
325 | { | |
326 | int ret; | |
327 | ||
328 | if (fio_file_open(f)) | |
329 | return fio_io_sync(td, f); | |
330 | ||
331 | if (td_io_open_file(td, f)) | |
332 | return 1; | |
333 | ||
334 | ret = fio_io_sync(td, f); | |
335 | td_io_close_file(td, f); | |
336 | return ret; | |
337 | } | |
338 | ||
2e1df07d JA |
339 | static inline void __update_tv_cache(struct thread_data *td) |
340 | { | |
341 | fio_gettime(&td->tv_cache, NULL); | |
342 | } | |
343 | ||
344 | static inline void update_tv_cache(struct thread_data *td) | |
345 | { | |
346 | if ((++td->tv_cache_nr & td->tv_cache_mask) == td->tv_cache_mask) | |
347 | __update_tv_cache(td); | |
348 | } | |
349 | ||
350 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
351 | { | |
352 | if (in_ramp_time(td)) | |
353 | return 0; | |
354 | if (!td->o.timeout) | |
355 | return 0; | |
0de5b26f | 356 | if (utime_since(&td->epoch, t) >= td->o.timeout) |
2e1df07d JA |
357 | return 1; |
358 | ||
359 | return 0; | |
360 | } | |
361 | ||
362 | static int break_on_this_error(struct thread_data *td, enum fio_ddir ddir, | |
363 | int *retptr) | |
364 | { | |
365 | int ret = *retptr; | |
366 | ||
367 | if (ret < 0 || td->error) { | |
8b28bd41 DM |
368 | int err = td->error; |
369 | enum error_type_bit eb; | |
2e1df07d JA |
370 | |
371 | if (ret < 0) | |
372 | err = -ret; | |
2e1df07d | 373 | |
8b28bd41 DM |
374 | eb = td_error_type(ddir, err); |
375 | if (!(td->o.continue_on_error & (1 << eb))) | |
2e1df07d JA |
376 | return 1; |
377 | ||
8b28bd41 | 378 | if (td_non_fatal_error(td, eb, err)) { |
2e1df07d JA |
379 | /* |
380 | * Continue with the I/Os in case of | |
381 | * a non fatal error. | |
382 | */ | |
383 | update_error_count(td, err); | |
384 | td_clear_error(td); | |
385 | *retptr = 0; | |
386 | return 0; | |
387 | } else if (td->o.fill_device && err == ENOSPC) { | |
388 | /* | |
389 | * We expect to hit this error if | |
390 | * fill_device option is set. | |
391 | */ | |
392 | td_clear_error(td); | |
393 | td->terminate = 1; | |
394 | return 1; | |
395 | } else { | |
396 | /* | |
397 | * Stop the I/O in case of a fatal | |
398 | * error. | |
399 | */ | |
400 | update_error_count(td, err); | |
401 | return 1; | |
402 | } | |
403 | } | |
404 | ||
405 | return 0; | |
406 | } | |
407 | ||
c97f1ad6 JA |
408 | static void check_update_rusage(struct thread_data *td) |
409 | { | |
410 | if (td->update_rusage) { | |
411 | td->update_rusage = 0; | |
412 | update_rusage_stat(td); | |
413 | fio_mutex_up(td->rusage_sem); | |
414 | } | |
415 | } | |
416 | ||
2e1df07d JA |
417 | /* |
418 | * The main verify engine. Runs over the writes we previously submitted, | |
419 | * reads the blocks back in, and checks the crc/md5 of the data. | |
420 | */ | |
100f49f1 | 421 | static void do_verify(struct thread_data *td, uint64_t verify_bytes) |
2e1df07d | 422 | { |
100f49f1 | 423 | uint64_t bytes_done[DDIR_RWDIR_CNT] = { 0, 0, 0 }; |
2e1df07d JA |
424 | struct fio_file *f; |
425 | struct io_u *io_u; | |
426 | int ret, min_events; | |
427 | unsigned int i; | |
428 | ||
429 | dprint(FD_VERIFY, "starting loop\n"); | |
430 | ||
431 | /* | |
432 | * sync io first and invalidate cache, to make sure we really | |
433 | * read from disk. | |
434 | */ | |
435 | for_each_file(td, f, i) { | |
436 | if (!fio_file_open(f)) | |
437 | continue; | |
438 | if (fio_io_sync(td, f)) | |
439 | break; | |
440 | if (file_invalidate_cache(td, f)) | |
441 | break; | |
442 | } | |
443 | ||
c97f1ad6 JA |
444 | check_update_rusage(td); |
445 | ||
2e1df07d JA |
446 | if (td->error) |
447 | return; | |
448 | ||
449 | td_set_runstate(td, TD_VERIFYING); | |
450 | ||
451 | io_u = NULL; | |
452 | while (!td->terminate) { | |
fbccf46c | 453 | enum fio_ddir ddir; |
2e1df07d JA |
454 | int ret2, full; |
455 | ||
456 | update_tv_cache(td); | |
c97f1ad6 | 457 | check_update_rusage(td); |
2e1df07d JA |
458 | |
459 | if (runtime_exceeded(td, &td->tv_cache)) { | |
460 | __update_tv_cache(td); | |
461 | if (runtime_exceeded(td, &td->tv_cache)) { | |
462 | td->terminate = 1; | |
463 | break; | |
464 | } | |
465 | } | |
466 | ||
9e684a49 DE |
467 | if (flow_threshold_exceeded(td)) |
468 | continue; | |
469 | ||
44cbc6da JA |
470 | if (!td->o.experimental_verify) { |
471 | io_u = __get_io_u(td); | |
472 | if (!io_u) | |
473 | break; | |
2e1df07d | 474 | |
44cbc6da JA |
475 | if (get_next_verify(td, io_u)) { |
476 | put_io_u(td, io_u); | |
477 | break; | |
478 | } | |
2e1df07d | 479 | |
44cbc6da JA |
480 | if (td_io_prep(td, io_u)) { |
481 | put_io_u(td, io_u); | |
482 | break; | |
483 | } | |
484 | } else { | |
100f49f1 JA |
485 | if (ddir_rw_sum(bytes_done) + td->o.rw_min_bs > verify_bytes) |
486 | break; | |
487 | ||
bcd5abfa | 488 | while ((io_u = get_io_u(td)) != NULL) { |
002fe734 JA |
489 | if (IS_ERR(io_u)) { |
490 | io_u = NULL; | |
491 | ret = FIO_Q_BUSY; | |
492 | goto reap; | |
493 | } | |
494 | ||
bcd5abfa JA |
495 | /* |
496 | * We are only interested in the places where | |
497 | * we wrote or trimmed IOs. Turn those into | |
498 | * reads for verification purposes. | |
499 | */ | |
500 | if (io_u->ddir == DDIR_READ) { | |
501 | /* | |
502 | * Pretend we issued it for rwmix | |
503 | * accounting | |
504 | */ | |
505 | td->io_issues[DDIR_READ]++; | |
506 | put_io_u(td, io_u); | |
507 | continue; | |
508 | } else if (io_u->ddir == DDIR_TRIM) { | |
509 | io_u->ddir = DDIR_READ; | |
510 | io_u->flags |= IO_U_F_TRIMMED; | |
511 | break; | |
512 | } else if (io_u->ddir == DDIR_WRITE) { | |
513 | io_u->ddir = DDIR_READ; | |
514 | break; | |
515 | } else { | |
516 | put_io_u(td, io_u); | |
517 | continue; | |
518 | } | |
519 | } | |
44cbc6da | 520 | |
bcd5abfa | 521 | if (!io_u) |
44cbc6da | 522 | break; |
2e1df07d JA |
523 | } |
524 | ||
525 | if (td->o.verify_async) | |
526 | io_u->end_io = verify_io_u_async; | |
527 | else | |
528 | io_u->end_io = verify_io_u; | |
529 | ||
fbccf46c JA |
530 | ddir = io_u->ddir; |
531 | ||
2e1df07d JA |
532 | ret = td_io_queue(td, io_u); |
533 | switch (ret) { | |
534 | case FIO_Q_COMPLETED: | |
535 | if (io_u->error) { | |
536 | ret = -io_u->error; | |
537 | clear_io_u(td, io_u); | |
538 | } else if (io_u->resid) { | |
539 | int bytes = io_u->xfer_buflen - io_u->resid; | |
540 | ||
541 | /* | |
542 | * zero read, fail | |
543 | */ | |
544 | if (!bytes) { | |
545 | td_verror(td, EIO, "full resid"); | |
546 | put_io_u(td, io_u); | |
547 | break; | |
548 | } | |
549 | ||
550 | io_u->xfer_buflen = io_u->resid; | |
551 | io_u->xfer_buf += bytes; | |
552 | io_u->offset += bytes; | |
553 | ||
554 | if (ddir_rw(io_u->ddir)) | |
555 | td->ts.short_io_u[io_u->ddir]++; | |
556 | ||
557 | f = io_u->file; | |
558 | if (io_u->offset == f->real_file_size) | |
559 | goto sync_done; | |
560 | ||
561 | requeue_io_u(td, &io_u); | |
562 | } else { | |
563 | sync_done: | |
100f49f1 | 564 | ret = io_u_sync_complete(td, io_u, bytes_done); |
2e1df07d JA |
565 | if (ret < 0) |
566 | break; | |
567 | } | |
568 | continue; | |
569 | case FIO_Q_QUEUED: | |
570 | break; | |
571 | case FIO_Q_BUSY: | |
572 | requeue_io_u(td, &io_u); | |
573 | ret2 = td_io_commit(td); | |
574 | if (ret2 < 0) | |
575 | ret = ret2; | |
576 | break; | |
577 | default: | |
578 | assert(ret < 0); | |
579 | td_verror(td, -ret, "td_io_queue"); | |
580 | break; | |
581 | } | |
582 | ||
fbccf46c | 583 | if (break_on_this_error(td, ddir, &ret)) |
2e1df07d JA |
584 | break; |
585 | ||
586 | /* | |
587 | * if we can queue more, do so. but check if there are | |
588 | * completed io_u's first. Note that we can get BUSY even | |
589 | * without IO queued, if the system is resource starved. | |
590 | */ | |
002fe734 | 591 | reap: |
2e1df07d JA |
592 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); |
593 | if (full || !td->o.iodepth_batch_complete) { | |
594 | min_events = min(td->o.iodepth_batch_complete, | |
595 | td->cur_depth); | |
8a74b56d JA |
596 | /* |
597 | * if the queue is full, we MUST reap at least 1 event | |
598 | */ | |
599 | if (full && !min_events) | |
2e1df07d JA |
600 | min_events = 1; |
601 | ||
602 | do { | |
603 | /* | |
604 | * Reap required number of io units, if any, | |
605 | * and do the verification on them through | |
606 | * the callback handler | |
607 | */ | |
100f49f1 | 608 | if (io_u_queued_complete(td, min_events, bytes_done) < 0) { |
2e1df07d JA |
609 | ret = -1; |
610 | break; | |
611 | } | |
612 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
613 | } | |
614 | if (ret < 0) | |
615 | break; | |
616 | } | |
617 | ||
c97f1ad6 JA |
618 | check_update_rusage(td); |
619 | ||
2e1df07d JA |
620 | if (!td->error) { |
621 | min_events = td->cur_depth; | |
622 | ||
623 | if (min_events) | |
624 | ret = io_u_queued_complete(td, min_events, NULL); | |
625 | } else | |
626 | cleanup_pending_aio(td); | |
627 | ||
628 | td_set_runstate(td, TD_RUNNING); | |
629 | ||
630 | dprint(FD_VERIFY, "exiting loop\n"); | |
631 | } | |
632 | ||
3939fe85 JA |
633 | static unsigned int exceeds_number_ios(struct thread_data *td) |
634 | { | |
635 | unsigned long long number_ios; | |
636 | ||
637 | if (!td->o.number_ios) | |
638 | return 0; | |
639 | ||
640 | number_ios = ddir_rw_sum(td->this_io_blocks); | |
641 | number_ios += td->io_u_queued + td->io_u_in_flight; | |
642 | ||
643 | return number_ios >= td->o.number_ios; | |
644 | } | |
645 | ||
f7078f7b JA |
646 | static int io_bytes_exceeded(struct thread_data *td) |
647 | { | |
77731b29 | 648 | unsigned long long bytes, limit; |
f7078f7b JA |
649 | |
650 | if (td_rw(td)) | |
6eaf09d6 | 651 | bytes = td->this_io_bytes[DDIR_READ] + td->this_io_bytes[DDIR_WRITE]; |
f7078f7b | 652 | else if (td_write(td)) |
6eaf09d6 SL |
653 | bytes = td->this_io_bytes[DDIR_WRITE]; |
654 | else if (td_read(td)) | |
655 | bytes = td->this_io_bytes[DDIR_READ]; | |
f7078f7b | 656 | else |
6eaf09d6 | 657 | bytes = td->this_io_bytes[DDIR_TRIM]; |
f7078f7b | 658 | |
77731b29 JA |
659 | if (td->o.io_limit) |
660 | limit = td->o.io_limit; | |
661 | else | |
662 | limit = td->o.size; | |
663 | ||
664 | return bytes >= limit || exceeds_number_ios(td); | |
f7078f7b JA |
665 | } |
666 | ||
2e1df07d JA |
667 | /* |
668 | * Main IO worker function. It retrieves io_u's to process and queues | |
669 | * and reaps them, checking for rate and errors along the way. | |
100f49f1 JA |
670 | * |
671 | * Returns number of bytes written and trimmed. | |
2e1df07d | 672 | */ |
100f49f1 | 673 | static uint64_t do_io(struct thread_data *td) |
2e1df07d | 674 | { |
100f49f1 | 675 | uint64_t bytes_done[DDIR_RWDIR_CNT] = { 0, 0, 0 }; |
2e1df07d JA |
676 | unsigned int i; |
677 | int ret = 0; | |
c2703bf3 | 678 | uint64_t total_bytes, bytes_issued = 0; |
2e1df07d JA |
679 | |
680 | if (in_ramp_time(td)) | |
681 | td_set_runstate(td, TD_RAMP); | |
682 | else | |
683 | td_set_runstate(td, TD_RUNNING); | |
684 | ||
3e260a46 JA |
685 | lat_target_init(td); |
686 | ||
78a6469c JA |
687 | /* |
688 | * If verify_backlog is enabled, we'll run the verify in this | |
689 | * handler as well. For that case, we may need up to twice the | |
690 | * amount of bytes. | |
691 | */ | |
c2703bf3 | 692 | total_bytes = td->o.size; |
78a6469c JA |
693 | if (td->o.verify != VERIFY_NONE && |
694 | (td_write(td) && td->o.verify_backlog)) | |
c2703bf3 JA |
695 | total_bytes += td->o.size; |
696 | ||
f7078f7b | 697 | while ((td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || |
c04e4661 DE |
698 | (!flist_empty(&td->trim_list)) || !io_bytes_exceeded(td) || |
699 | td->o.time_based) { | |
2e1df07d | 700 | struct timeval comp_time; |
2e1df07d JA |
701 | int min_evts = 0; |
702 | struct io_u *io_u; | |
703 | int ret2, full; | |
704 | enum fio_ddir ddir; | |
705 | ||
c97f1ad6 JA |
706 | check_update_rusage(td); |
707 | ||
7d7803fa | 708 | if (td->terminate || td->done) |
2e1df07d JA |
709 | break; |
710 | ||
711 | update_tv_cache(td); | |
712 | ||
713 | if (runtime_exceeded(td, &td->tv_cache)) { | |
714 | __update_tv_cache(td); | |
715 | if (runtime_exceeded(td, &td->tv_cache)) { | |
716 | td->terminate = 1; | |
717 | break; | |
718 | } | |
719 | } | |
720 | ||
9e684a49 DE |
721 | if (flow_threshold_exceeded(td)) |
722 | continue; | |
723 | ||
c2703bf3 | 724 | if (bytes_issued >= total_bytes) |
20876c53 JC |
725 | break; |
726 | ||
2e1df07d | 727 | io_u = get_io_u(td); |
002fe734 JA |
728 | if (IS_ERR_OR_NULL(io_u)) { |
729 | int err = PTR_ERR(io_u); | |
730 | ||
731 | io_u = NULL; | |
732 | if (err == -EBUSY) { | |
733 | ret = FIO_Q_BUSY; | |
734 | goto reap; | |
735 | } | |
3e260a46 JA |
736 | if (td->o.latency_target) |
737 | goto reap; | |
2e1df07d | 738 | break; |
3e260a46 | 739 | } |
2e1df07d JA |
740 | |
741 | ddir = io_u->ddir; | |
742 | ||
743 | /* | |
82af2a7c JA |
744 | * Add verification end_io handler if: |
745 | * - Asked to verify (!td_rw(td)) | |
746 | * - Or the io_u is from our verify list (mixed write/ver) | |
2e1df07d JA |
747 | */ |
748 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ && | |
82af2a7c | 749 | ((io_u->flags & IO_U_F_VER_LIST) || !td_rw(td))) { |
c4b6117b PV |
750 | |
751 | if (!td->o.verify_pattern_bytes) { | |
752 | io_u->rand_seed = __rand(&td->__verify_state); | |
753 | if (sizeof(int) != sizeof(long *)) | |
754 | io_u->rand_seed *= __rand(&td->__verify_state); | |
755 | } | |
756 | ||
2e1df07d JA |
757 | if (td->o.verify_async) |
758 | io_u->end_io = verify_io_u_async; | |
759 | else | |
760 | io_u->end_io = verify_io_u; | |
761 | td_set_runstate(td, TD_VERIFYING); | |
762 | } else if (in_ramp_time(td)) | |
763 | td_set_runstate(td, TD_RAMP); | |
764 | else | |
765 | td_set_runstate(td, TD_RUNNING); | |
766 | ||
9a50c5c5 | 767 | /* |
f9401285 JA |
768 | * Always log IO before it's issued, so we know the specific |
769 | * order of it. The logged unit will track when the IO has | |
770 | * completed. | |
9a50c5c5 | 771 | */ |
c4b6117b PV |
772 | if (td_write(td) && io_u->ddir == DDIR_WRITE && |
773 | td->o.do_verify && | |
774 | td->o.verify != VERIFY_NONE && | |
f9401285 | 775 | !td->o.experimental_verify) |
c4b6117b PV |
776 | log_io_piece(td, io_u); |
777 | ||
2e1df07d JA |
778 | ret = td_io_queue(td, io_u); |
779 | switch (ret) { | |
780 | case FIO_Q_COMPLETED: | |
781 | if (io_u->error) { | |
782 | ret = -io_u->error; | |
783 | clear_io_u(td, io_u); | |
784 | } else if (io_u->resid) { | |
785 | int bytes = io_u->xfer_buflen - io_u->resid; | |
786 | struct fio_file *f = io_u->file; | |
787 | ||
20876c53 | 788 | bytes_issued += bytes; |
2e1df07d JA |
789 | /* |
790 | * zero read, fail | |
791 | */ | |
792 | if (!bytes) { | |
793 | td_verror(td, EIO, "full resid"); | |
794 | put_io_u(td, io_u); | |
795 | break; | |
796 | } | |
797 | ||
798 | io_u->xfer_buflen = io_u->resid; | |
799 | io_u->xfer_buf += bytes; | |
800 | io_u->offset += bytes; | |
801 | ||
802 | if (ddir_rw(io_u->ddir)) | |
803 | td->ts.short_io_u[io_u->ddir]++; | |
804 | ||
805 | if (io_u->offset == f->real_file_size) | |
806 | goto sync_done; | |
807 | ||
808 | requeue_io_u(td, &io_u); | |
809 | } else { | |
810 | sync_done: | |
6eaf09d6 SL |
811 | if (__should_check_rate(td, DDIR_READ) || |
812 | __should_check_rate(td, DDIR_WRITE) || | |
813 | __should_check_rate(td, DDIR_TRIM)) | |
2e1df07d JA |
814 | fio_gettime(&comp_time, NULL); |
815 | ||
816 | ret = io_u_sync_complete(td, io_u, bytes_done); | |
817 | if (ret < 0) | |
818 | break; | |
20876c53 | 819 | bytes_issued += io_u->xfer_buflen; |
2e1df07d JA |
820 | } |
821 | break; | |
822 | case FIO_Q_QUEUED: | |
823 | /* | |
824 | * if the engine doesn't have a commit hook, | |
825 | * the io_u is really queued. if it does have such | |
826 | * a hook, it has to call io_u_queued() itself. | |
827 | */ | |
828 | if (td->io_ops->commit == NULL) | |
829 | io_u_queued(td, io_u); | |
20876c53 | 830 | bytes_issued += io_u->xfer_buflen; |
2e1df07d JA |
831 | break; |
832 | case FIO_Q_BUSY: | |
833 | requeue_io_u(td, &io_u); | |
834 | ret2 = td_io_commit(td); | |
835 | if (ret2 < 0) | |
836 | ret = ret2; | |
837 | break; | |
838 | default: | |
839 | assert(ret < 0); | |
840 | put_io_u(td, io_u); | |
841 | break; | |
842 | } | |
843 | ||
844 | if (break_on_this_error(td, ddir, &ret)) | |
845 | break; | |
846 | ||
847 | /* | |
848 | * See if we need to complete some commands. Note that we | |
849 | * can get BUSY even without IO queued, if the system is | |
850 | * resource starved. | |
851 | */ | |
3e260a46 | 852 | reap: |
2e1df07d JA |
853 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); |
854 | if (full || !td->o.iodepth_batch_complete) { | |
855 | min_evts = min(td->o.iodepth_batch_complete, | |
856 | td->cur_depth); | |
8a74b56d JA |
857 | /* |
858 | * if the queue is full, we MUST reap at least 1 event | |
859 | */ | |
860 | if (full && !min_evts) | |
2e1df07d JA |
861 | min_evts = 1; |
862 | ||
6eaf09d6 SL |
863 | if (__should_check_rate(td, DDIR_READ) || |
864 | __should_check_rate(td, DDIR_WRITE) || | |
865 | __should_check_rate(td, DDIR_TRIM)) | |
2e1df07d JA |
866 | fio_gettime(&comp_time, NULL); |
867 | ||
868 | do { | |
869 | ret = io_u_queued_complete(td, min_evts, bytes_done); | |
870 | if (ret < 0) | |
871 | break; | |
872 | ||
873 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
874 | } | |
875 | ||
876 | if (ret < 0) | |
877 | break; | |
d5abee06 | 878 | if (!ddir_rw_sum(bytes_done) && !(td->io_ops->flags & FIO_NOIO)) |
2e1df07d JA |
879 | continue; |
880 | ||
881 | if (!in_ramp_time(td) && should_check_rate(td, bytes_done)) { | |
882 | if (check_min_rate(td, &comp_time, bytes_done)) { | |
883 | if (exitall_on_terminate) | |
884 | fio_terminate_threads(td->groupid); | |
885 | td_verror(td, EIO, "check_min_rate"); | |
886 | break; | |
887 | } | |
888 | } | |
3e260a46 JA |
889 | if (!in_ramp_time(td) && td->o.latency_target) |
890 | lat_target_check(td); | |
2e1df07d JA |
891 | |
892 | if (td->o.thinktime) { | |
893 | unsigned long long b; | |
894 | ||
342f4be4 | 895 | b = ddir_rw_sum(td->io_blocks); |
2e1df07d JA |
896 | if (!(b % td->o.thinktime_blocks)) { |
897 | int left; | |
898 | ||
002e7183 JA |
899 | io_u_quiesce(td); |
900 | ||
2e1df07d JA |
901 | if (td->o.thinktime_spin) |
902 | usec_spin(td->o.thinktime_spin); | |
903 | ||
904 | left = td->o.thinktime - td->o.thinktime_spin; | |
905 | if (left) | |
906 | usec_sleep(td, left); | |
907 | } | |
908 | } | |
909 | } | |
910 | ||
c97f1ad6 JA |
911 | check_update_rusage(td); |
912 | ||
2e1df07d | 913 | if (td->trim_entries) |
4e0a8fa2 | 914 | log_err("fio: %lu trim entries leaked?\n", td->trim_entries); |
2e1df07d JA |
915 | |
916 | if (td->o.fill_device && td->error == ENOSPC) { | |
917 | td->error = 0; | |
918 | td->terminate = 1; | |
919 | } | |
920 | if (!td->error) { | |
921 | struct fio_file *f; | |
922 | ||
923 | i = td->cur_depth; | |
924 | if (i) { | |
5bd5f71a | 925 | ret = io_u_queued_complete(td, i, bytes_done); |
2e1df07d JA |
926 | if (td->o.fill_device && td->error == ENOSPC) |
927 | td->error = 0; | |
928 | } | |
929 | ||
930 | if (should_fsync(td) && td->o.end_fsync) { | |
931 | td_set_runstate(td, TD_FSYNCING); | |
932 | ||
933 | for_each_file(td, f, i) { | |
61ee0f86 | 934 | if (!fio_file_fsync(td, f)) |
2e1df07d | 935 | continue; |
61ee0f86 JA |
936 | |
937 | log_err("fio: end_fsync failed for file %s\n", | |
938 | f->file_name); | |
2e1df07d JA |
939 | } |
940 | } | |
941 | } else | |
942 | cleanup_pending_aio(td); | |
943 | ||
944 | /* | |
945 | * stop job if we failed doing any IO | |
946 | */ | |
342f4be4 | 947 | if (!ddir_rw_sum(td->this_io_bytes)) |
2e1df07d | 948 | td->done = 1; |
100f49f1 JA |
949 | |
950 | return bytes_done[DDIR_WRITE] + bytes_done[DDIR_TRIM]; | |
2e1df07d JA |
951 | } |
952 | ||
953 | static void cleanup_io_u(struct thread_data *td) | |
954 | { | |
2e1df07d JA |
955 | struct io_u *io_u; |
956 | ||
2ae0b204 | 957 | while ((io_u = io_u_qpop(&td->io_u_freelist)) != NULL) { |
c73ed246 JA |
958 | |
959 | if (td->io_ops->io_u_free) | |
960 | td->io_ops->io_u_free(td, io_u); | |
961 | ||
2e1df07d JA |
962 | fio_memfree(io_u, sizeof(*io_u)); |
963 | } | |
964 | ||
965 | free_io_mem(td); | |
2ae0b204 JA |
966 | |
967 | io_u_rexit(&td->io_u_requeues); | |
968 | io_u_qexit(&td->io_u_freelist); | |
969 | io_u_qexit(&td->io_u_all); | |
2e1df07d JA |
970 | } |
971 | ||
972 | static int init_io_u(struct thread_data *td) | |
973 | { | |
974 | struct io_u *io_u; | |
9c42684e | 975 | unsigned int max_bs, min_write; |
2e1df07d | 976 | int cl_align, i, max_units; |
2ae0b204 | 977 | int data_xfer = 1, err; |
2e1df07d JA |
978 | char *p; |
979 | ||
980 | max_units = td->o.iodepth; | |
74f4b020 | 981 | max_bs = td_max_bs(td); |
9c42684e | 982 | min_write = td->o.min_bs[DDIR_WRITE]; |
2e1df07d JA |
983 | td->orig_buffer_size = (unsigned long long) max_bs |
984 | * (unsigned long long) max_units; | |
985 | ||
88045e04 | 986 | if ((td->io_ops->flags & FIO_NOIO) || !(td_read(td) || td_write(td))) |
59d8d0f5 JA |
987 | data_xfer = 0; |
988 | ||
2ae0b204 JA |
989 | err = 0; |
990 | err += io_u_rinit(&td->io_u_requeues, td->o.iodepth); | |
991 | err += io_u_qinit(&td->io_u_freelist, td->o.iodepth); | |
992 | err += io_u_qinit(&td->io_u_all, td->o.iodepth); | |
993 | ||
994 | if (err) { | |
995 | log_err("fio: failed setting up IO queues\n"); | |
996 | return 1; | |
997 | } | |
998 | ||
fd8a09b8 | 999 | /* |
1000 | * if we may later need to do address alignment, then add any | |
1001 | * possible adjustment here so that we don't cause a buffer | |
1002 | * overflow later. this adjustment may be too much if we get | |
1003 | * lucky and the allocator gives us an aligned address. | |
1004 | */ | |
d01612f3 CM |
1005 | if (td->o.odirect || td->o.mem_align || td->o.oatomic || |
1006 | (td->io_ops->flags & FIO_RAWIO)) | |
fd8a09b8 | 1007 | td->orig_buffer_size += page_mask + td->o.mem_align; |
1008 | ||
2e1df07d JA |
1009 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { |
1010 | unsigned long bs; | |
1011 | ||
1012 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; | |
1013 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); | |
1014 | } | |
1015 | ||
1016 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { | |
1017 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
1018 | return 1; | |
1019 | } | |
1020 | ||
59d8d0f5 | 1021 | if (data_xfer && allocate_io_mem(td)) |
2e1df07d JA |
1022 | return 1; |
1023 | ||
d01612f3 | 1024 | if (td->o.odirect || td->o.mem_align || td->o.oatomic || |
2e1df07d JA |
1025 | (td->io_ops->flags & FIO_RAWIO)) |
1026 | p = PAGE_ALIGN(td->orig_buffer) + td->o.mem_align; | |
1027 | else | |
1028 | p = td->orig_buffer; | |
1029 | ||
1030 | cl_align = os_cache_line_size(); | |
1031 | ||
1032 | for (i = 0; i < max_units; i++) { | |
1033 | void *ptr; | |
1034 | ||
1035 | if (td->terminate) | |
1036 | return 1; | |
1037 | ||
1038 | ptr = fio_memalign(cl_align, sizeof(*io_u)); | |
1039 | if (!ptr) { | |
1040 | log_err("fio: unable to allocate aligned memory\n"); | |
1041 | break; | |
1042 | } | |
1043 | ||
1044 | io_u = ptr; | |
1045 | memset(io_u, 0, sizeof(*io_u)); | |
2ae0b204 | 1046 | INIT_FLIST_HEAD(&io_u->verify_list); |
2e1df07d JA |
1047 | dprint(FD_MEM, "io_u alloc %p, index %u\n", io_u, i); |
1048 | ||
59d8d0f5 | 1049 | if (data_xfer) { |
2e1df07d JA |
1050 | io_u->buf = p; |
1051 | dprint(FD_MEM, "io_u %p, mem %p\n", io_u, io_u->buf); | |
1052 | ||
1053 | if (td_write(td)) | |
9c42684e | 1054 | io_u_fill_buffer(td, io_u, min_write, max_bs); |
2e1df07d JA |
1055 | if (td_write(td) && td->o.verify_pattern_bytes) { |
1056 | /* | |
1057 | * Fill the buffer with the pattern if we are | |
1058 | * going to be doing writes. | |
1059 | */ | |
ce35b1ec | 1060 | fill_verify_pattern(td, io_u->buf, max_bs, io_u, 0, 0); |
2e1df07d JA |
1061 | } |
1062 | } | |
1063 | ||
1064 | io_u->index = i; | |
1065 | io_u->flags = IO_U_F_FREE; | |
2ae0b204 JA |
1066 | io_u_qpush(&td->io_u_freelist, io_u); |
1067 | ||
1068 | /* | |
1069 | * io_u never leaves this stack, used for iteration of all | |
1070 | * io_u buffers. | |
1071 | */ | |
1072 | io_u_qpush(&td->io_u_all, io_u); | |
c73ed246 JA |
1073 | |
1074 | if (td->io_ops->io_u_init) { | |
1075 | int ret = td->io_ops->io_u_init(td, io_u); | |
1076 | ||
1077 | if (ret) { | |
1078 | log_err("fio: failed to init engine data: %d\n", ret); | |
1079 | return 1; | |
1080 | } | |
1081 | } | |
1082 | ||
2e1df07d JA |
1083 | p += max_bs; |
1084 | } | |
1085 | ||
1086 | return 0; | |
1087 | } | |
1088 | ||
1089 | static int switch_ioscheduler(struct thread_data *td) | |
1090 | { | |
1091 | char tmp[256], tmp2[128]; | |
1092 | FILE *f; | |
1093 | int ret; | |
1094 | ||
1095 | if (td->io_ops->flags & FIO_DISKLESSIO) | |
1096 | return 0; | |
1097 | ||
1098 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); | |
1099 | ||
1100 | f = fopen(tmp, "r+"); | |
1101 | if (!f) { | |
1102 | if (errno == ENOENT) { | |
1103 | log_err("fio: os or kernel doesn't support IO scheduler" | |
1104 | " switching\n"); | |
1105 | return 0; | |
1106 | } | |
1107 | td_verror(td, errno, "fopen iosched"); | |
1108 | return 1; | |
1109 | } | |
1110 | ||
1111 | /* | |
1112 | * Set io scheduler. | |
1113 | */ | |
1114 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); | |
1115 | if (ferror(f) || ret != 1) { | |
1116 | td_verror(td, errno, "fwrite"); | |
1117 | fclose(f); | |
1118 | return 1; | |
1119 | } | |
1120 | ||
1121 | rewind(f); | |
1122 | ||
1123 | /* | |
1124 | * Read back and check that the selected scheduler is now the default. | |
1125 | */ | |
49c6f33d | 1126 | ret = fread(tmp, sizeof(tmp), 1, f); |
2e1df07d JA |
1127 | if (ferror(f) || ret < 0) { |
1128 | td_verror(td, errno, "fread"); | |
1129 | fclose(f); | |
1130 | return 1; | |
1131 | } | |
49c6f33d JA |
1132 | tmp[sizeof(tmp) - 1] = '\0'; |
1133 | ||
2e1df07d JA |
1134 | |
1135 | sprintf(tmp2, "[%s]", td->o.ioscheduler); | |
1136 | if (!strstr(tmp, tmp2)) { | |
1137 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); | |
1138 | td_verror(td, EINVAL, "iosched_switch"); | |
1139 | fclose(f); | |
1140 | return 1; | |
1141 | } | |
1142 | ||
1143 | fclose(f); | |
1144 | return 0; | |
1145 | } | |
1146 | ||
1147 | static int keep_running(struct thread_data *td) | |
1148 | { | |
77731b29 JA |
1149 | unsigned long long limit; |
1150 | ||
2e1df07d JA |
1151 | if (td->done) |
1152 | return 0; | |
1153 | if (td->o.time_based) | |
1154 | return 1; | |
1155 | if (td->o.loops) { | |
1156 | td->o.loops--; | |
1157 | return 1; | |
1158 | } | |
3939fe85 JA |
1159 | if (exceeds_number_ios(td)) |
1160 | return 0; | |
26251d8d | 1161 | |
77731b29 JA |
1162 | if (td->o.io_limit) |
1163 | limit = td->o.io_limit; | |
1164 | else | |
1165 | limit = td->o.size; | |
1166 | ||
1167 | if (limit != -1ULL && ddir_rw_sum(td->io_bytes) < limit) { | |
5bd5f71a JA |
1168 | uint64_t diff; |
1169 | ||
1170 | /* | |
1171 | * If the difference is less than the minimum IO size, we | |
1172 | * are done. | |
1173 | */ | |
77731b29 | 1174 | diff = limit - ddir_rw_sum(td->io_bytes); |
74f4b020 | 1175 | if (diff < td_max_bs(td)) |
5bd5f71a JA |
1176 | return 0; |
1177 | ||
002fe734 JA |
1178 | if (fio_files_done(td)) |
1179 | return 0; | |
1180 | ||
2e1df07d | 1181 | return 1; |
5bd5f71a | 1182 | } |
2e1df07d JA |
1183 | |
1184 | return 0; | |
1185 | } | |
1186 | ||
ce486495 | 1187 | static int exec_string(struct thread_options *o, const char *string, const char *mode) |
2e1df07d | 1188 | { |
ce486495 | 1189 | int ret, newlen = strlen(string) + strlen(o->name) + strlen(mode) + 9 + 1; |
2e1df07d JA |
1190 | char *str; |
1191 | ||
1192 | str = malloc(newlen); | |
ce486495 | 1193 | sprintf(str, "%s &> %s.%s.txt", string, o->name, mode); |
2e1df07d | 1194 | |
ce486495 | 1195 | log_info("%s : Saving output of %s in %s.%s.txt\n",o->name, mode, o->name, mode); |
2e1df07d JA |
1196 | ret = system(str); |
1197 | if (ret == -1) | |
1198 | log_err("fio: exec of cmd <%s> failed\n", str); | |
1199 | ||
1200 | free(str); | |
1201 | return ret; | |
1202 | } | |
1203 | ||
62167762 JC |
1204 | /* |
1205 | * Dry run to compute correct state of numberio for verification. | |
1206 | */ | |
1207 | static uint64_t do_dry_run(struct thread_data *td) | |
1208 | { | |
1209 | uint64_t bytes_done[DDIR_RWDIR_CNT] = { 0, 0, 0 }; | |
1210 | ||
1211 | td_set_runstate(td, TD_RUNNING); | |
1212 | ||
1213 | while ((td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || | |
1214 | (!flist_empty(&td->trim_list)) || !io_bytes_exceeded(td)) { | |
1215 | struct io_u *io_u; | |
1216 | int ret; | |
1217 | ||
1218 | if (td->terminate || td->done) | |
1219 | break; | |
1220 | ||
1221 | io_u = get_io_u(td); | |
1222 | if (!io_u) | |
1223 | break; | |
1224 | ||
1225 | io_u->flags |= IO_U_F_FLIGHT; | |
1226 | io_u->error = 0; | |
1227 | io_u->resid = 0; | |
1228 | if (ddir_rw(acct_ddir(io_u))) | |
1229 | td->io_issues[acct_ddir(io_u)]++; | |
1230 | if (ddir_rw(io_u->ddir)) { | |
1231 | io_u_mark_depth(td, 1); | |
1232 | td->ts.total_io_u[io_u->ddir]++; | |
1233 | } | |
1234 | ||
2e63e96b PV |
1235 | if (td_write(td) && io_u->ddir == DDIR_WRITE && |
1236 | td->o.do_verify && | |
1237 | td->o.verify != VERIFY_NONE && | |
1238 | !td->o.experimental_verify) | |
1239 | log_io_piece(td, io_u); | |
1240 | ||
62167762 JC |
1241 | ret = io_u_sync_complete(td, io_u, bytes_done); |
1242 | (void) ret; | |
1243 | } | |
1244 | ||
1245 | return bytes_done[DDIR_WRITE] + bytes_done[DDIR_TRIM]; | |
1246 | } | |
1247 | ||
2e1df07d JA |
1248 | /* |
1249 | * Entry point for the thread based jobs. The process based jobs end up | |
1250 | * here as well, after a little setup. | |
1251 | */ | |
1252 | static void *thread_main(void *data) | |
1253 | { | |
1254 | unsigned long long elapsed; | |
1255 | struct thread_data *td = data; | |
4896473e | 1256 | struct thread_options *o = &td->o; |
2e1df07d JA |
1257 | pthread_condattr_t attr; |
1258 | int clear_state; | |
28727df7 | 1259 | int ret; |
2e1df07d | 1260 | |
4896473e | 1261 | if (!o->use_thread) { |
2e1df07d JA |
1262 | setsid(); |
1263 | td->pid = getpid(); | |
1264 | } else | |
1265 | td->pid = gettid(); | |
1266 | ||
334185e9 BC |
1267 | /* |
1268 | * fio_time_init() may not have been called yet if running as a server | |
1269 | */ | |
1270 | fio_time_init(); | |
1271 | ||
4896473e | 1272 | fio_local_clock_init(o->use_thread); |
5d879392 | 1273 | |
2e1df07d JA |
1274 | dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); |
1275 | ||
122c7725 JA |
1276 | if (is_backend) |
1277 | fio_server_send_start(td); | |
1278 | ||
2e1df07d JA |
1279 | INIT_FLIST_HEAD(&td->io_log_list); |
1280 | INIT_FLIST_HEAD(&td->io_hist_list); | |
1281 | INIT_FLIST_HEAD(&td->verify_list); | |
1282 | INIT_FLIST_HEAD(&td->trim_list); | |
1ae83d45 | 1283 | INIT_FLIST_HEAD(&td->next_rand_list); |
2e1df07d JA |
1284 | pthread_mutex_init(&td->io_u_lock, NULL); |
1285 | td->io_hist_tree = RB_ROOT; | |
1286 | ||
1287 | pthread_condattr_init(&attr); | |
1288 | pthread_cond_init(&td->verify_cond, &attr); | |
1289 | pthread_cond_init(&td->free_cond, &attr); | |
1290 | ||
1291 | td_set_runstate(td, TD_INITIALIZED); | |
1292 | dprint(FD_MUTEX, "up startup_mutex\n"); | |
1293 | fio_mutex_up(startup_mutex); | |
1294 | dprint(FD_MUTEX, "wait on td->mutex\n"); | |
1295 | fio_mutex_down(td->mutex); | |
1296 | dprint(FD_MUTEX, "done waiting on td->mutex\n"); | |
1297 | ||
2e1df07d JA |
1298 | /* |
1299 | * A new gid requires privilege, so we need to do this before setting | |
1300 | * the uid. | |
1301 | */ | |
4896473e | 1302 | if (o->gid != -1U && setgid(o->gid)) { |
2e1df07d JA |
1303 | td_verror(td, errno, "setgid"); |
1304 | goto err; | |
1305 | } | |
4896473e | 1306 | if (o->uid != -1U && setuid(o->uid)) { |
2e1df07d JA |
1307 | td_verror(td, errno, "setuid"); |
1308 | goto err; | |
1309 | } | |
1310 | ||
1311 | /* | |
1312 | * If we have a gettimeofday() thread, make sure we exclude that | |
1313 | * thread from this job | |
1314 | */ | |
4896473e JA |
1315 | if (o->gtod_cpu) |
1316 | fio_cpu_clear(&o->cpumask, o->gtod_cpu); | |
2e1df07d JA |
1317 | |
1318 | /* | |
1319 | * Set affinity first, in case it has an impact on the memory | |
1320 | * allocations. | |
1321 | */ | |
4896473e | 1322 | if (o->cpumask_set) { |
c2acfbac | 1323 | if (o->cpus_allowed_policy == FIO_CPUS_SPLIT) { |
30cb4c65 | 1324 | ret = fio_cpus_split(&o->cpumask, td->thread_number - 1); |
c2acfbac JA |
1325 | if (!ret) { |
1326 | log_err("fio: no CPUs set\n"); | |
1327 | log_err("fio: Try increasing number of available CPUs\n"); | |
1328 | td_verror(td, EINVAL, "cpus_split"); | |
1329 | goto err; | |
1330 | } | |
1331 | } | |
28727df7 JA |
1332 | ret = fio_setaffinity(td->pid, o->cpumask); |
1333 | if (ret == -1) { | |
4896473e JA |
1334 | td_verror(td, errno, "cpu_set_affinity"); |
1335 | goto err; | |
1336 | } | |
2e1df07d JA |
1337 | } |
1338 | ||
67bf9823 | 1339 | #ifdef CONFIG_LIBNUMA |
d0b937ed | 1340 | /* numa node setup */ |
4896473e | 1341 | if (o->numa_cpumask_set || o->numa_memmask_set) { |
d0b937ed YR |
1342 | int ret; |
1343 | ||
1344 | if (numa_available() < 0) { | |
1345 | td_verror(td, errno, "Does not support NUMA API\n"); | |
1346 | goto err; | |
1347 | } | |
1348 | ||
4896473e JA |
1349 | if (o->numa_cpumask_set) { |
1350 | ret = numa_run_on_node_mask(o->numa_cpunodesmask); | |
d0b937ed YR |
1351 | if (ret == -1) { |
1352 | td_verror(td, errno, \ | |
1353 | "numa_run_on_node_mask failed\n"); | |
1354 | goto err; | |
1355 | } | |
1356 | } | |
1357 | ||
4896473e | 1358 | if (o->numa_memmask_set) { |
d0b937ed | 1359 | |
4896473e | 1360 | switch (o->numa_mem_mode) { |
d0b937ed | 1361 | case MPOL_INTERLEAVE: |
4896473e | 1362 | numa_set_interleave_mask(o->numa_memnodesmask); |
d0b937ed YR |
1363 | break; |
1364 | case MPOL_BIND: | |
4896473e | 1365 | numa_set_membind(o->numa_memnodesmask); |
d0b937ed YR |
1366 | break; |
1367 | case MPOL_LOCAL: | |
1368 | numa_set_localalloc(); | |
1369 | break; | |
1370 | case MPOL_PREFERRED: | |
4896473e | 1371 | numa_set_preferred(o->numa_mem_prefer_node); |
d0b937ed YR |
1372 | break; |
1373 | case MPOL_DEFAULT: | |
1374 | default: | |
1375 | break; | |
1376 | } | |
1377 | ||
1378 | } | |
1379 | } | |
1380 | #endif | |
1381 | ||
9a3f1100 JA |
1382 | if (fio_pin_memory(td)) |
1383 | goto err; | |
1384 | ||
2e1df07d JA |
1385 | /* |
1386 | * May alter parameters that init_io_u() will use, so we need to | |
1387 | * do this first. | |
1388 | */ | |
1389 | if (init_iolog(td)) | |
1390 | goto err; | |
1391 | ||
1392 | if (init_io_u(td)) | |
1393 | goto err; | |
1394 | ||
4896473e | 1395 | if (o->verify_async && verify_async_init(td)) |
2e1df07d JA |
1396 | goto err; |
1397 | ||
28727df7 JA |
1398 | if (o->ioprio) { |
1399 | ret = ioprio_set(IOPRIO_WHO_PROCESS, 0, o->ioprio_class, o->ioprio); | |
1400 | if (ret == -1) { | |
2e1df07d JA |
1401 | td_verror(td, errno, "ioprio_set"); |
1402 | goto err; | |
1403 | } | |
1404 | } | |
1405 | ||
4896473e | 1406 | if (o->cgroup && cgroup_setup(td, cgroup_list, &cgroup_mnt)) |
2e1df07d JA |
1407 | goto err; |
1408 | ||
649c10c5 | 1409 | errno = 0; |
4896473e | 1410 | if (nice(o->nice) == -1 && errno != 0) { |
2e1df07d JA |
1411 | td_verror(td, errno, "nice"); |
1412 | goto err; | |
1413 | } | |
1414 | ||
4896473e | 1415 | if (o->ioscheduler && switch_ioscheduler(td)) |
2e1df07d JA |
1416 | goto err; |
1417 | ||
4896473e | 1418 | if (!o->create_serialize && setup_files(td)) |
2e1df07d JA |
1419 | goto err; |
1420 | ||
1421 | if (td_io_init(td)) | |
1422 | goto err; | |
1423 | ||
1424 | if (init_random_map(td)) | |
1425 | goto err; | |
1426 | ||
ce486495 | 1427 | if (o->exec_prerun && exec_string(o, o->exec_prerun, (const char *)"prerun")) |
4896473e | 1428 | goto err; |
2e1df07d | 1429 | |
4896473e | 1430 | if (o->pre_read) { |
2e1df07d JA |
1431 | if (pre_read_files(td) < 0) |
1432 | goto err; | |
1433 | } | |
1434 | ||
dc5bfbb2 JA |
1435 | fio_verify_init(td); |
1436 | ||
2e1df07d | 1437 | fio_gettime(&td->epoch, NULL); |
44404c5a | 1438 | fio_getrusage(&td->ru_start); |
2e1df07d JA |
1439 | clear_state = 0; |
1440 | while (keep_running(td)) { | |
100f49f1 JA |
1441 | uint64_t verify_bytes; |
1442 | ||
2e1df07d JA |
1443 | fio_gettime(&td->start, NULL); |
1444 | memcpy(&td->bw_sample_time, &td->start, sizeof(td->start)); | |
1445 | memcpy(&td->iops_sample_time, &td->start, sizeof(td->start)); | |
1446 | memcpy(&td->tv_cache, &td->start, sizeof(td->start)); | |
1447 | ||
4896473e JA |
1448 | if (o->ratemin[DDIR_READ] || o->ratemin[DDIR_WRITE] || |
1449 | o->ratemin[DDIR_TRIM]) { | |
6eaf09d6 | 1450 | memcpy(&td->lastrate[DDIR_READ], &td->bw_sample_time, |
2e1df07d | 1451 | sizeof(td->bw_sample_time)); |
6eaf09d6 SL |
1452 | memcpy(&td->lastrate[DDIR_WRITE], &td->bw_sample_time, |
1453 | sizeof(td->bw_sample_time)); | |
1454 | memcpy(&td->lastrate[DDIR_TRIM], &td->bw_sample_time, | |
2e1df07d JA |
1455 | sizeof(td->bw_sample_time)); |
1456 | } | |
1457 | ||
1458 | if (clear_state) | |
1459 | clear_io_state(td); | |
1460 | ||
1461 | prune_io_piece_log(td); | |
1462 | ||
62167762 JC |
1463 | if (td->o.verify_only && (td_write(td) || td_rw(td))) |
1464 | verify_bytes = do_dry_run(td); | |
1465 | else | |
1466 | verify_bytes = do_io(td); | |
2e1df07d JA |
1467 | |
1468 | clear_state = 1; | |
1469 | ||
1470 | if (td_read(td) && td->io_bytes[DDIR_READ]) { | |
1471 | elapsed = utime_since_now(&td->start); | |
1472 | td->ts.runtime[DDIR_READ] += elapsed; | |
1473 | } | |
1474 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { | |
1475 | elapsed = utime_since_now(&td->start); | |
1476 | td->ts.runtime[DDIR_WRITE] += elapsed; | |
1477 | } | |
6eaf09d6 SL |
1478 | if (td_trim(td) && td->io_bytes[DDIR_TRIM]) { |
1479 | elapsed = utime_since_now(&td->start); | |
1480 | td->ts.runtime[DDIR_TRIM] += elapsed; | |
1481 | } | |
2e1df07d JA |
1482 | |
1483 | if (td->error || td->terminate) | |
1484 | break; | |
1485 | ||
4896473e JA |
1486 | if (!o->do_verify || |
1487 | o->verify == VERIFY_NONE || | |
2e1df07d JA |
1488 | (td->io_ops->flags & FIO_UNIDIR)) |
1489 | continue; | |
1490 | ||
1491 | clear_io_state(td); | |
1492 | ||
1493 | fio_gettime(&td->start, NULL); | |
1494 | ||
100f49f1 | 1495 | do_verify(td, verify_bytes); |
2e1df07d JA |
1496 | |
1497 | td->ts.runtime[DDIR_READ] += utime_since_now(&td->start); | |
1498 | ||
1499 | if (td->error || td->terminate) | |
1500 | break; | |
1501 | } | |
1502 | ||
1503 | update_rusage_stat(td); | |
6eaf09d6 SL |
1504 | td->ts.runtime[DDIR_READ] = (td->ts.runtime[DDIR_READ] + 999) / 1000; |
1505 | td->ts.runtime[DDIR_WRITE] = (td->ts.runtime[DDIR_WRITE] + 999) / 1000; | |
1506 | td->ts.runtime[DDIR_TRIM] = (td->ts.runtime[DDIR_TRIM] + 999) / 1000; | |
2e1df07d | 1507 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
6eaf09d6 SL |
1508 | td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ]; |
1509 | td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE]; | |
1510 | td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM]; | |
2e1df07d | 1511 | |
9a3f1100 JA |
1512 | fio_unpin_memory(td); |
1513 | ||
905e3d4f | 1514 | fio_writeout_logs(td); |
2e1df07d | 1515 | |
4896473e | 1516 | if (o->exec_postrun) |
ce486495 | 1517 | exec_string(o, o->exec_postrun, (const char *)"postrun"); |
2e1df07d JA |
1518 | |
1519 | if (exitall_on_terminate) | |
1520 | fio_terminate_threads(td->groupid); | |
1521 | ||
1522 | err: | |
1523 | if (td->error) | |
1524 | log_info("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, | |
1525 | td->verror); | |
1526 | ||
4896473e | 1527 | if (o->verify_async) |
2e1df07d JA |
1528 | verify_async_exit(td); |
1529 | ||
1530 | close_and_free_files(td); | |
2e1df07d | 1531 | cleanup_io_u(td); |
32dbca2c | 1532 | close_ioengine(td); |
2e1df07d JA |
1533 | cgroup_shutdown(td, &cgroup_mnt); |
1534 | ||
4896473e JA |
1535 | if (o->cpumask_set) { |
1536 | int ret = fio_cpuset_exit(&o->cpumask); | |
2e1df07d JA |
1537 | |
1538 | td_verror(td, ret, "fio_cpuset_exit"); | |
1539 | } | |
1540 | ||
1541 | /* | |
1542 | * do this very late, it will log file closing as well | |
1543 | */ | |
4896473e | 1544 | if (o->write_iolog_file) |
2e1df07d JA |
1545 | write_iolog_close(td); |
1546 | ||
c97f1ad6 JA |
1547 | fio_mutex_remove(td->rusage_sem); |
1548 | td->rusage_sem = NULL; | |
1549 | ||
ea66e04f JA |
1550 | fio_mutex_remove(td->mutex); |
1551 | td->mutex = NULL; | |
1552 | ||
2e1df07d | 1553 | td_set_runstate(td, TD_EXITED); |
e43606c2 | 1554 | return (void *) (uintptr_t) td->error; |
2e1df07d JA |
1555 | } |
1556 | ||
1557 | ||
1558 | /* | |
1559 | * We cannot pass the td data into a forked process, so attach the td and | |
1560 | * pass it to the thread worker. | |
1561 | */ | |
1562 | static int fork_main(int shmid, int offset) | |
1563 | { | |
1564 | struct thread_data *td; | |
1565 | void *data, *ret; | |
1566 | ||
1567 | #ifndef __hpux | |
1568 | data = shmat(shmid, NULL, 0); | |
1569 | if (data == (void *) -1) { | |
1570 | int __err = errno; | |
1571 | ||
1572 | perror("shmat"); | |
1573 | return __err; | |
1574 | } | |
1575 | #else | |
1576 | /* | |
1577 | * HP-UX inherits shm mappings? | |
1578 | */ | |
1579 | data = threads; | |
1580 | #endif | |
1581 | ||
1582 | td = data + offset * sizeof(struct thread_data); | |
1583 | ret = thread_main(td); | |
1584 | shmdt(data); | |
e43606c2 | 1585 | return (int) (uintptr_t) ret; |
2e1df07d JA |
1586 | } |
1587 | ||
1588 | /* | |
1589 | * Run over the job map and reap the threads that have exited, if any. | |
1590 | */ | |
1591 | static void reap_threads(unsigned int *nr_running, unsigned int *t_rate, | |
1592 | unsigned int *m_rate) | |
1593 | { | |
1594 | struct thread_data *td; | |
1595 | unsigned int cputhreads, realthreads, pending; | |
1596 | int i, status, ret; | |
1597 | ||
1598 | /* | |
1599 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1600 | */ | |
1601 | realthreads = pending = cputhreads = 0; | |
1602 | for_each_td(td, i) { | |
1603 | int flags = 0; | |
1604 | ||
1605 | /* | |
1606 | * ->io_ops is NULL for a thread that has closed its | |
1607 | * io engine | |
1608 | */ | |
1609 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) | |
1610 | cputhreads++; | |
1611 | else | |
1612 | realthreads++; | |
1613 | ||
1614 | if (!td->pid) { | |
1615 | pending++; | |
1616 | continue; | |
1617 | } | |
1618 | if (td->runstate == TD_REAPED) | |
1619 | continue; | |
1620 | if (td->o.use_thread) { | |
1621 | if (td->runstate == TD_EXITED) { | |
1622 | td_set_runstate(td, TD_REAPED); | |
1623 | goto reaped; | |
1624 | } | |
1625 | continue; | |
1626 | } | |
1627 | ||
1628 | flags = WNOHANG; | |
1629 | if (td->runstate == TD_EXITED) | |
1630 | flags = 0; | |
1631 | ||
1632 | /* | |
1633 | * check if someone quit or got killed in an unusual way | |
1634 | */ | |
1635 | ret = waitpid(td->pid, &status, flags); | |
1636 | if (ret < 0) { | |
1637 | if (errno == ECHILD) { | |
1638 | log_err("fio: pid=%d disappeared %d\n", | |
1639 | (int) td->pid, td->runstate); | |
a5e371a6 | 1640 | td->sig = ECHILD; |
2e1df07d JA |
1641 | td_set_runstate(td, TD_REAPED); |
1642 | goto reaped; | |
1643 | } | |
1644 | perror("waitpid"); | |
1645 | } else if (ret == td->pid) { | |
1646 | if (WIFSIGNALED(status)) { | |
1647 | int sig = WTERMSIG(status); | |
1648 | ||
36d80bc7 | 1649 | if (sig != SIGTERM && sig != SIGUSR2) |
2e1df07d JA |
1650 | log_err("fio: pid=%d, got signal=%d\n", |
1651 | (int) td->pid, sig); | |
a5e371a6 | 1652 | td->sig = sig; |
2e1df07d JA |
1653 | td_set_runstate(td, TD_REAPED); |
1654 | goto reaped; | |
1655 | } | |
1656 | if (WIFEXITED(status)) { | |
1657 | if (WEXITSTATUS(status) && !td->error) | |
1658 | td->error = WEXITSTATUS(status); | |
1659 | ||
1660 | td_set_runstate(td, TD_REAPED); | |
1661 | goto reaped; | |
1662 | } | |
1663 | } | |
1664 | ||
1665 | /* | |
1666 | * thread is not dead, continue | |
1667 | */ | |
1668 | pending++; | |
1669 | continue; | |
1670 | reaped: | |
1671 | (*nr_running)--; | |
342f4be4 JA |
1672 | (*m_rate) -= ddir_rw_sum(td->o.ratemin); |
1673 | (*t_rate) -= ddir_rw_sum(td->o.rate); | |
2e1df07d JA |
1674 | if (!td->pid) |
1675 | pending--; | |
1676 | ||
1677 | if (td->error) | |
1678 | exit_value++; | |
1679 | ||
1680 | done_secs += mtime_since_now(&td->epoch) / 1000; | |
4a88752a | 1681 | profile_td_exit(td); |
2e1df07d JA |
1682 | } |
1683 | ||
1684 | if (*nr_running == cputhreads && !pending && realthreads) | |
1685 | fio_terminate_threads(TERMINATE_ALL); | |
1686 | } | |
1687 | ||
06464907 JA |
1688 | static void do_usleep(unsigned int usecs) |
1689 | { | |
1690 | check_for_running_stats(); | |
1691 | usleep(usecs); | |
1692 | } | |
1693 | ||
2e1df07d JA |
1694 | /* |
1695 | * Main function for kicking off and reaping jobs, as needed. | |
1696 | */ | |
1697 | static void run_threads(void) | |
1698 | { | |
1699 | struct thread_data *td; | |
2e1df07d | 1700 | unsigned int i, todo, nr_running, m_rate, t_rate, nr_started; |
0de5b26f | 1701 | uint64_t spent; |
2e1df07d | 1702 | |
2e1df07d JA |
1703 | if (fio_gtod_offload && fio_start_gtod_thread()) |
1704 | return; | |
334185e9 | 1705 | |
f2a2ce0e | 1706 | fio_idle_prof_init(); |
2e1df07d JA |
1707 | |
1708 | set_sig_handlers(); | |
1709 | ||
3a5f6bde JA |
1710 | nr_thread = nr_process = 0; |
1711 | for_each_td(td, i) { | |
1712 | if (td->o.use_thread) | |
1713 | nr_thread++; | |
1714 | else | |
1715 | nr_process++; | |
1716 | } | |
1717 | ||
f3afa57e | 1718 | if (output_format == FIO_OUTPUT_NORMAL) { |
2e1df07d JA |
1719 | log_info("Starting "); |
1720 | if (nr_thread) | |
1721 | log_info("%d thread%s", nr_thread, | |
1722 | nr_thread > 1 ? "s" : ""); | |
1723 | if (nr_process) { | |
1724 | if (nr_thread) | |
1725 | log_info(" and "); | |
1726 | log_info("%d process%s", nr_process, | |
1727 | nr_process > 1 ? "es" : ""); | |
1728 | } | |
1729 | log_info("\n"); | |
1730 | fflush(stdout); | |
1731 | } | |
1732 | ||
1733 | todo = thread_number; | |
1734 | nr_running = 0; | |
1735 | nr_started = 0; | |
1736 | m_rate = t_rate = 0; | |
1737 | ||
1738 | for_each_td(td, i) { | |
1739 | print_status_init(td->thread_number - 1); | |
1740 | ||
1741 | if (!td->o.create_serialize) | |
1742 | continue; | |
1743 | ||
1744 | /* | |
1745 | * do file setup here so it happens sequentially, | |
1746 | * we don't want X number of threads getting their | |
1747 | * client data interspersed on disk | |
1748 | */ | |
1749 | if (setup_files(td)) { | |
1750 | exit_value++; | |
1751 | if (td->error) | |
1752 | log_err("fio: pid=%d, err=%d/%s\n", | |
1753 | (int) td->pid, td->error, td->verror); | |
1754 | td_set_runstate(td, TD_REAPED); | |
1755 | todo--; | |
1756 | } else { | |
1757 | struct fio_file *f; | |
1758 | unsigned int j; | |
1759 | ||
1760 | /* | |
1761 | * for sharing to work, each job must always open | |
1762 | * its own files. so close them, if we opened them | |
1763 | * for creation | |
1764 | */ | |
1765 | for_each_file(td, f, j) { | |
1766 | if (fio_file_open(f)) | |
1767 | td_io_close_file(td, f); | |
1768 | } | |
1769 | } | |
1770 | } | |
1771 | ||
f2a2ce0e HL |
1772 | /* start idle threads before io threads start to run */ |
1773 | fio_idle_prof_start(); | |
1774 | ||
2e1df07d JA |
1775 | set_genesis_time(); |
1776 | ||
1777 | while (todo) { | |
1778 | struct thread_data *map[REAL_MAX_JOBS]; | |
1779 | struct timeval this_start; | |
1780 | int this_jobs = 0, left; | |
1781 | ||
1782 | /* | |
1783 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1784 | */ | |
1785 | for_each_td(td, i) { | |
1786 | if (td->runstate != TD_NOT_CREATED) | |
1787 | continue; | |
1788 | ||
1789 | /* | |
1790 | * never got a chance to start, killed by other | |
1791 | * thread for some reason | |
1792 | */ | |
1793 | if (td->terminate) { | |
1794 | todo--; | |
1795 | continue; | |
1796 | } | |
1797 | ||
1798 | if (td->o.start_delay) { | |
0de5b26f | 1799 | spent = utime_since_genesis(); |
2e1df07d | 1800 | |
74454ce4 | 1801 | if (td->o.start_delay > spent) |
2e1df07d JA |
1802 | continue; |
1803 | } | |
1804 | ||
1805 | if (td->o.stonewall && (nr_started || nr_running)) { | |
1806 | dprint(FD_PROCESS, "%s: stonewall wait\n", | |
1807 | td->o.name); | |
1808 | break; | |
1809 | } | |
1810 | ||
1811 | init_disk_util(td); | |
1812 | ||
c97f1ad6 JA |
1813 | td->rusage_sem = fio_mutex_init(FIO_MUTEX_LOCKED); |
1814 | td->update_rusage = 0; | |
1815 | ||
2e1df07d JA |
1816 | /* |
1817 | * Set state to created. Thread will transition | |
1818 | * to TD_INITIALIZED when it's done setting up. | |
1819 | */ | |
1820 | td_set_runstate(td, TD_CREATED); | |
1821 | map[this_jobs++] = td; | |
1822 | nr_started++; | |
1823 | ||
1824 | if (td->o.use_thread) { | |
1825 | int ret; | |
1826 | ||
1827 | dprint(FD_PROCESS, "will pthread_create\n"); | |
1828 | ret = pthread_create(&td->thread, NULL, | |
1829 | thread_main, td); | |
1830 | if (ret) { | |
1831 | log_err("pthread_create: %s\n", | |
1832 | strerror(ret)); | |
1833 | nr_started--; | |
1834 | break; | |
1835 | } | |
1836 | ret = pthread_detach(td->thread); | |
1837 | if (ret) | |
1838 | log_err("pthread_detach: %s", | |
1839 | strerror(ret)); | |
1840 | } else { | |
1841 | pid_t pid; | |
1842 | dprint(FD_PROCESS, "will fork\n"); | |
1843 | pid = fork(); | |
1844 | if (!pid) { | |
1845 | int ret = fork_main(shm_id, i); | |
1846 | ||
1847 | _exit(ret); | |
1848 | } else if (i == fio_debug_jobno) | |
1849 | *fio_debug_jobp = pid; | |
1850 | } | |
1851 | dprint(FD_MUTEX, "wait on startup_mutex\n"); | |
1852 | if (fio_mutex_down_timeout(startup_mutex, 10)) { | |
1853 | log_err("fio: job startup hung? exiting.\n"); | |
1854 | fio_terminate_threads(TERMINATE_ALL); | |
1855 | fio_abort = 1; | |
1856 | nr_started--; | |
1857 | break; | |
1858 | } | |
1859 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); | |
1860 | } | |
1861 | ||
1862 | /* | |
1863 | * Wait for the started threads to transition to | |
1864 | * TD_INITIALIZED. | |
1865 | */ | |
1866 | fio_gettime(&this_start, NULL); | |
1867 | left = this_jobs; | |
1868 | while (left && !fio_abort) { | |
1869 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) | |
1870 | break; | |
1871 | ||
06464907 | 1872 | do_usleep(100000); |
2e1df07d JA |
1873 | |
1874 | for (i = 0; i < this_jobs; i++) { | |
1875 | td = map[i]; | |
1876 | if (!td) | |
1877 | continue; | |
1878 | if (td->runstate == TD_INITIALIZED) { | |
1879 | map[i] = NULL; | |
1880 | left--; | |
1881 | } else if (td->runstate >= TD_EXITED) { | |
1882 | map[i] = NULL; | |
1883 | left--; | |
1884 | todo--; | |
1885 | nr_running++; /* work-around... */ | |
1886 | } | |
1887 | } | |
1888 | } | |
1889 | ||
1890 | if (left) { | |
4e87c37a JA |
1891 | log_err("fio: %d job%s failed to start\n", left, |
1892 | left > 1 ? "s" : ""); | |
2e1df07d JA |
1893 | for (i = 0; i < this_jobs; i++) { |
1894 | td = map[i]; | |
1895 | if (!td) | |
1896 | continue; | |
1897 | kill(td->pid, SIGTERM); | |
1898 | } | |
1899 | break; | |
1900 | } | |
1901 | ||
1902 | /* | |
1903 | * start created threads (TD_INITIALIZED -> TD_RUNNING). | |
1904 | */ | |
1905 | for_each_td(td, i) { | |
1906 | if (td->runstate != TD_INITIALIZED) | |
1907 | continue; | |
1908 | ||
1909 | if (in_ramp_time(td)) | |
1910 | td_set_runstate(td, TD_RAMP); | |
1911 | else | |
1912 | td_set_runstate(td, TD_RUNNING); | |
1913 | nr_running++; | |
1914 | nr_started--; | |
342f4be4 JA |
1915 | m_rate += ddir_rw_sum(td->o.ratemin); |
1916 | t_rate += ddir_rw_sum(td->o.rate); | |
2e1df07d JA |
1917 | todo--; |
1918 | fio_mutex_up(td->mutex); | |
1919 | } | |
1920 | ||
1921 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1922 | ||
122c7725 | 1923 | if (todo) |
06464907 | 1924 | do_usleep(100000); |
2e1df07d JA |
1925 | } |
1926 | ||
1927 | while (nr_running) { | |
1928 | reap_threads(&nr_running, &t_rate, &m_rate); | |
06464907 | 1929 | do_usleep(10000); |
2e1df07d JA |
1930 | } |
1931 | ||
f2a2ce0e HL |
1932 | fio_idle_prof_stop(); |
1933 | ||
2e1df07d | 1934 | update_io_ticks(); |
2e1df07d JA |
1935 | } |
1936 | ||
9ec7779f JA |
1937 | void wait_for_disk_thread_exit(void) |
1938 | { | |
1939 | fio_mutex_down(disk_thread_mutex); | |
1940 | } | |
1941 | ||
27357187 JA |
1942 | static void free_disk_util(void) |
1943 | { | |
1944 | disk_util_start_exit(); | |
1945 | wait_for_disk_thread_exit(); | |
1946 | disk_util_prune_entries(); | |
1947 | } | |
1948 | ||
2e1df07d JA |
1949 | static void *disk_thread_main(void *data) |
1950 | { | |
9ec7779f JA |
1951 | int ret = 0; |
1952 | ||
2e1df07d JA |
1953 | fio_mutex_up(startup_mutex); |
1954 | ||
9ec7779f | 1955 | while (threads && !ret) { |
2e1df07d JA |
1956 | usleep(DISK_UTIL_MSEC * 1000); |
1957 | if (!threads) | |
1958 | break; | |
9ec7779f | 1959 | ret = update_io_ticks(); |
2e1df07d JA |
1960 | |
1961 | if (!is_backend) | |
1962 | print_thread_status(); | |
1963 | } | |
1964 | ||
9ec7779f | 1965 | fio_mutex_up(disk_thread_mutex); |
2e1df07d JA |
1966 | return NULL; |
1967 | } | |
1968 | ||
1969 | static int create_disk_util_thread(void) | |
1970 | { | |
1971 | int ret; | |
1972 | ||
9ec7779f JA |
1973 | setup_disk_util(); |
1974 | ||
521da527 | 1975 | disk_thread_mutex = fio_mutex_init(FIO_MUTEX_LOCKED); |
9ec7779f | 1976 | |
2e1df07d JA |
1977 | ret = pthread_create(&disk_util_thread, NULL, disk_thread_main, NULL); |
1978 | if (ret) { | |
9ec7779f | 1979 | fio_mutex_remove(disk_thread_mutex); |
2e1df07d JA |
1980 | log_err("Can't create disk util thread: %s\n", strerror(ret)); |
1981 | return 1; | |
1982 | } | |
1983 | ||
1984 | ret = pthread_detach(disk_util_thread); | |
1985 | if (ret) { | |
9ec7779f | 1986 | fio_mutex_remove(disk_thread_mutex); |
2e1df07d JA |
1987 | log_err("Can't detatch disk util thread: %s\n", strerror(ret)); |
1988 | return 1; | |
1989 | } | |
1990 | ||
1991 | dprint(FD_MUTEX, "wait on startup_mutex\n"); | |
1992 | fio_mutex_down(startup_mutex); | |
1993 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); | |
1994 | return 0; | |
1995 | } | |
1996 | ||
2e1df07d JA |
1997 | int fio_backend(void) |
1998 | { | |
1999 | struct thread_data *td; | |
2000 | int i; | |
2001 | ||
2002 | if (exec_profile) { | |
2003 | if (load_profile(exec_profile)) | |
2004 | return 1; | |
2005 | free(exec_profile); | |
2006 | exec_profile = NULL; | |
2007 | } | |
2008 | if (!thread_number) | |
2009 | return 0; | |
2010 | ||
2011 | if (write_bw_log) { | |
5a812f9b JA |
2012 | setup_log(&agg_io_log[DDIR_READ], 0, IO_LOG_TYPE_BW); |
2013 | setup_log(&agg_io_log[DDIR_WRITE], 0, IO_LOG_TYPE_BW); | |
2014 | setup_log(&agg_io_log[DDIR_TRIM], 0, IO_LOG_TYPE_BW); | |
2e1df07d JA |
2015 | } |
2016 | ||
521da527 | 2017 | startup_mutex = fio_mutex_init(FIO_MUTEX_LOCKED); |
2e1df07d JA |
2018 | if (startup_mutex == NULL) |
2019 | return 1; | |
2e1df07d JA |
2020 | |
2021 | set_genesis_time(); | |
cef9175e | 2022 | stat_init(); |
2e1df07d JA |
2023 | create_disk_util_thread(); |
2024 | ||
2025 | cgroup_list = smalloc(sizeof(*cgroup_list)); | |
2026 | INIT_FLIST_HEAD(cgroup_list); | |
2027 | ||
2028 | run_threads(); | |
2029 | ||
2030 | if (!fio_abort) { | |
2031 | show_run_stats(); | |
2032 | if (write_bw_log) { | |
2033 | __finish_log(agg_io_log[DDIR_READ], "agg-read_bw.log"); | |
2034 | __finish_log(agg_io_log[DDIR_WRITE], | |
2035 | "agg-write_bw.log"); | |
6eaf09d6 SL |
2036 | __finish_log(agg_io_log[DDIR_TRIM], |
2037 | "agg-write_bw.log"); | |
2e1df07d JA |
2038 | } |
2039 | } | |
2040 | ||
2041 | for_each_td(td, i) | |
2042 | fio_options_free(td); | |
2043 | ||
a462baef | 2044 | free_disk_util(); |
2e1df07d JA |
2045 | cgroup_kill(cgroup_list); |
2046 | sfree(cgroup_list); | |
2047 | sfree(cgroup_mnt); | |
2048 | ||
2049 | fio_mutex_remove(startup_mutex); | |
9ec7779f | 2050 | fio_mutex_remove(disk_thread_mutex); |
cef9175e | 2051 | stat_exit(); |
2e1df07d JA |
2052 | return exit_value; |
2053 | } |