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 { | |
207 | rate = ((iops - td->rate_blocks[ddir]) * 1000) / spent; | |
208 | if (rate < rate_iops_min || | |
209 | iops < td->rate_blocks[ddir]) { | |
210 | log_err("%s: min iops rate %u not met," | |
211 | " got %lu\n", td->o.name, | |
212 | rate_iops_min, rate); | |
213 | } | |
214 | } | |
215 | } | |
216 | } | |
217 | ||
218 | td->rate_bytes[ddir] = bytes; | |
219 | td->rate_blocks[ddir] = iops; | |
220 | memcpy(&td->lastrate[ddir], now, sizeof(*now)); | |
221 | return 0; | |
222 | } | |
223 | ||
224 | static int check_min_rate(struct thread_data *td, struct timeval *now, | |
100f49f1 | 225 | uint64_t *bytes_done) |
2e1df07d JA |
226 | { |
227 | int ret = 0; | |
228 | ||
6eaf09d6 SL |
229 | if (bytes_done[DDIR_READ]) |
230 | ret |= __check_min_rate(td, now, DDIR_READ); | |
231 | if (bytes_done[DDIR_WRITE]) | |
232 | ret |= __check_min_rate(td, now, DDIR_WRITE); | |
233 | if (bytes_done[DDIR_TRIM]) | |
234 | ret |= __check_min_rate(td, now, DDIR_TRIM); | |
2e1df07d JA |
235 | |
236 | return ret; | |
237 | } | |
238 | ||
239 | /* | |
240 | * When job exits, we can cancel the in-flight IO if we are using async | |
241 | * io. Attempt to do so. | |
242 | */ | |
243 | static void cleanup_pending_aio(struct thread_data *td) | |
244 | { | |
2e1df07d JA |
245 | int r; |
246 | ||
247 | /* | |
248 | * get immediately available events, if any | |
249 | */ | |
250 | r = io_u_queued_complete(td, 0, NULL); | |
251 | if (r < 0) | |
252 | return; | |
253 | ||
254 | /* | |
255 | * now cancel remaining active events | |
256 | */ | |
257 | if (td->io_ops->cancel) { | |
2ae0b204 JA |
258 | struct io_u *io_u; |
259 | int i; | |
2e1df07d | 260 | |
2ae0b204 JA |
261 | io_u_qiter(&td->io_u_all, io_u, i) { |
262 | if (io_u->flags & IO_U_F_FLIGHT) { | |
2e1df07d JA |
263 | r = td->io_ops->cancel(td, io_u); |
264 | if (!r) | |
265 | put_io_u(td, io_u); | |
266 | } | |
267 | } | |
268 | } | |
269 | ||
270 | if (td->cur_depth) | |
271 | r = io_u_queued_complete(td, td->cur_depth, NULL); | |
272 | } | |
273 | ||
274 | /* | |
275 | * Helper to handle the final sync of a file. Works just like the normal | |
276 | * io path, just does everything sync. | |
277 | */ | |
278 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
279 | { | |
280 | struct io_u *io_u = __get_io_u(td); | |
281 | int ret; | |
282 | ||
283 | if (!io_u) | |
284 | return 1; | |
285 | ||
286 | io_u->ddir = DDIR_SYNC; | |
287 | io_u->file = f; | |
288 | ||
289 | if (td_io_prep(td, io_u)) { | |
290 | put_io_u(td, io_u); | |
291 | return 1; | |
292 | } | |
293 | ||
294 | requeue: | |
295 | ret = td_io_queue(td, io_u); | |
296 | if (ret < 0) { | |
297 | td_verror(td, io_u->error, "td_io_queue"); | |
298 | put_io_u(td, io_u); | |
299 | return 1; | |
300 | } else if (ret == FIO_Q_QUEUED) { | |
301 | if (io_u_queued_complete(td, 1, NULL) < 0) | |
302 | return 1; | |
303 | } else if (ret == FIO_Q_COMPLETED) { | |
304 | if (io_u->error) { | |
305 | td_verror(td, io_u->error, "td_io_queue"); | |
306 | return 1; | |
307 | } | |
308 | ||
309 | if (io_u_sync_complete(td, io_u, NULL) < 0) | |
310 | return 1; | |
311 | } else if (ret == FIO_Q_BUSY) { | |
312 | if (td_io_commit(td)) | |
313 | return 1; | |
314 | goto requeue; | |
315 | } | |
316 | ||
317 | return 0; | |
318 | } | |
a3efc919 | 319 | |
61ee0f86 JA |
320 | static int fio_file_fsync(struct thread_data *td, struct fio_file *f) |
321 | { | |
322 | int ret; | |
323 | ||
324 | if (fio_file_open(f)) | |
325 | return fio_io_sync(td, f); | |
326 | ||
327 | if (td_io_open_file(td, f)) | |
328 | return 1; | |
329 | ||
330 | ret = fio_io_sync(td, f); | |
331 | td_io_close_file(td, f); | |
332 | return ret; | |
333 | } | |
334 | ||
2e1df07d JA |
335 | static inline void __update_tv_cache(struct thread_data *td) |
336 | { | |
337 | fio_gettime(&td->tv_cache, NULL); | |
338 | } | |
339 | ||
340 | static inline void update_tv_cache(struct thread_data *td) | |
341 | { | |
342 | if ((++td->tv_cache_nr & td->tv_cache_mask) == td->tv_cache_mask) | |
343 | __update_tv_cache(td); | |
344 | } | |
345 | ||
346 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
347 | { | |
348 | if (in_ramp_time(td)) | |
349 | return 0; | |
350 | if (!td->o.timeout) | |
351 | return 0; | |
0de5b26f | 352 | if (utime_since(&td->epoch, t) >= td->o.timeout) |
2e1df07d JA |
353 | return 1; |
354 | ||
355 | return 0; | |
356 | } | |
357 | ||
358 | static int break_on_this_error(struct thread_data *td, enum fio_ddir ddir, | |
359 | int *retptr) | |
360 | { | |
361 | int ret = *retptr; | |
362 | ||
363 | if (ret < 0 || td->error) { | |
8b28bd41 DM |
364 | int err = td->error; |
365 | enum error_type_bit eb; | |
2e1df07d JA |
366 | |
367 | if (ret < 0) | |
368 | err = -ret; | |
2e1df07d | 369 | |
8b28bd41 DM |
370 | eb = td_error_type(ddir, err); |
371 | if (!(td->o.continue_on_error & (1 << eb))) | |
2e1df07d JA |
372 | return 1; |
373 | ||
8b28bd41 | 374 | if (td_non_fatal_error(td, eb, err)) { |
2e1df07d JA |
375 | /* |
376 | * Continue with the I/Os in case of | |
377 | * a non fatal error. | |
378 | */ | |
379 | update_error_count(td, err); | |
380 | td_clear_error(td); | |
381 | *retptr = 0; | |
382 | return 0; | |
383 | } else if (td->o.fill_device && err == ENOSPC) { | |
384 | /* | |
385 | * We expect to hit this error if | |
386 | * fill_device option is set. | |
387 | */ | |
388 | td_clear_error(td); | |
389 | td->terminate = 1; | |
390 | return 1; | |
391 | } else { | |
392 | /* | |
393 | * Stop the I/O in case of a fatal | |
394 | * error. | |
395 | */ | |
396 | update_error_count(td, err); | |
397 | return 1; | |
398 | } | |
399 | } | |
400 | ||
401 | return 0; | |
402 | } | |
403 | ||
c97f1ad6 JA |
404 | static void check_update_rusage(struct thread_data *td) |
405 | { | |
406 | if (td->update_rusage) { | |
407 | td->update_rusage = 0; | |
408 | update_rusage_stat(td); | |
409 | fio_mutex_up(td->rusage_sem); | |
410 | } | |
411 | } | |
412 | ||
2e1df07d JA |
413 | /* |
414 | * The main verify engine. Runs over the writes we previously submitted, | |
415 | * reads the blocks back in, and checks the crc/md5 of the data. | |
416 | */ | |
100f49f1 | 417 | static void do_verify(struct thread_data *td, uint64_t verify_bytes) |
2e1df07d | 418 | { |
100f49f1 | 419 | uint64_t bytes_done[DDIR_RWDIR_CNT] = { 0, 0, 0 }; |
2e1df07d JA |
420 | struct fio_file *f; |
421 | struct io_u *io_u; | |
422 | int ret, min_events; | |
423 | unsigned int i; | |
424 | ||
425 | dprint(FD_VERIFY, "starting loop\n"); | |
426 | ||
427 | /* | |
428 | * sync io first and invalidate cache, to make sure we really | |
429 | * read from disk. | |
430 | */ | |
431 | for_each_file(td, f, i) { | |
432 | if (!fio_file_open(f)) | |
433 | continue; | |
434 | if (fio_io_sync(td, f)) | |
435 | break; | |
436 | if (file_invalidate_cache(td, f)) | |
437 | break; | |
438 | } | |
439 | ||
c97f1ad6 JA |
440 | check_update_rusage(td); |
441 | ||
2e1df07d JA |
442 | if (td->error) |
443 | return; | |
444 | ||
445 | td_set_runstate(td, TD_VERIFYING); | |
446 | ||
447 | io_u = NULL; | |
448 | while (!td->terminate) { | |
fbccf46c | 449 | enum fio_ddir ddir; |
2e1df07d JA |
450 | int ret2, full; |
451 | ||
452 | update_tv_cache(td); | |
c97f1ad6 | 453 | check_update_rusage(td); |
2e1df07d JA |
454 | |
455 | if (runtime_exceeded(td, &td->tv_cache)) { | |
456 | __update_tv_cache(td); | |
457 | if (runtime_exceeded(td, &td->tv_cache)) { | |
458 | td->terminate = 1; | |
459 | break; | |
460 | } | |
461 | } | |
462 | ||
9e684a49 DE |
463 | if (flow_threshold_exceeded(td)) |
464 | continue; | |
465 | ||
44cbc6da JA |
466 | if (!td->o.experimental_verify) { |
467 | io_u = __get_io_u(td); | |
468 | if (!io_u) | |
469 | break; | |
2e1df07d | 470 | |
44cbc6da JA |
471 | if (get_next_verify(td, io_u)) { |
472 | put_io_u(td, io_u); | |
473 | break; | |
474 | } | |
2e1df07d | 475 | |
44cbc6da JA |
476 | if (td_io_prep(td, io_u)) { |
477 | put_io_u(td, io_u); | |
478 | break; | |
479 | } | |
480 | } else { | |
100f49f1 JA |
481 | if (ddir_rw_sum(bytes_done) + td->o.rw_min_bs > verify_bytes) |
482 | break; | |
483 | ||
bcd5abfa | 484 | while ((io_u = get_io_u(td)) != NULL) { |
002fe734 JA |
485 | if (IS_ERR(io_u)) { |
486 | io_u = NULL; | |
487 | ret = FIO_Q_BUSY; | |
488 | goto reap; | |
489 | } | |
490 | ||
bcd5abfa JA |
491 | /* |
492 | * We are only interested in the places where | |
493 | * we wrote or trimmed IOs. Turn those into | |
494 | * reads for verification purposes. | |
495 | */ | |
496 | if (io_u->ddir == DDIR_READ) { | |
497 | /* | |
498 | * Pretend we issued it for rwmix | |
499 | * accounting | |
500 | */ | |
501 | td->io_issues[DDIR_READ]++; | |
502 | put_io_u(td, io_u); | |
503 | continue; | |
504 | } else if (io_u->ddir == DDIR_TRIM) { | |
505 | io_u->ddir = DDIR_READ; | |
506 | io_u->flags |= IO_U_F_TRIMMED; | |
507 | break; | |
508 | } else if (io_u->ddir == DDIR_WRITE) { | |
509 | io_u->ddir = DDIR_READ; | |
510 | break; | |
511 | } else { | |
512 | put_io_u(td, io_u); | |
513 | continue; | |
514 | } | |
515 | } | |
44cbc6da | 516 | |
bcd5abfa | 517 | if (!io_u) |
44cbc6da | 518 | break; |
2e1df07d JA |
519 | } |
520 | ||
521 | if (td->o.verify_async) | |
522 | io_u->end_io = verify_io_u_async; | |
523 | else | |
524 | io_u->end_io = verify_io_u; | |
525 | ||
fbccf46c JA |
526 | ddir = io_u->ddir; |
527 | ||
2e1df07d JA |
528 | ret = td_io_queue(td, io_u); |
529 | switch (ret) { | |
530 | case FIO_Q_COMPLETED: | |
531 | if (io_u->error) { | |
532 | ret = -io_u->error; | |
533 | clear_io_u(td, io_u); | |
534 | } else if (io_u->resid) { | |
535 | int bytes = io_u->xfer_buflen - io_u->resid; | |
536 | ||
537 | /* | |
538 | * zero read, fail | |
539 | */ | |
540 | if (!bytes) { | |
541 | td_verror(td, EIO, "full resid"); | |
542 | put_io_u(td, io_u); | |
543 | break; | |
544 | } | |
545 | ||
546 | io_u->xfer_buflen = io_u->resid; | |
547 | io_u->xfer_buf += bytes; | |
548 | io_u->offset += bytes; | |
549 | ||
550 | if (ddir_rw(io_u->ddir)) | |
551 | td->ts.short_io_u[io_u->ddir]++; | |
552 | ||
553 | f = io_u->file; | |
554 | if (io_u->offset == f->real_file_size) | |
555 | goto sync_done; | |
556 | ||
557 | requeue_io_u(td, &io_u); | |
558 | } else { | |
559 | sync_done: | |
100f49f1 | 560 | ret = io_u_sync_complete(td, io_u, bytes_done); |
2e1df07d JA |
561 | if (ret < 0) |
562 | break; | |
563 | } | |
564 | continue; | |
565 | case FIO_Q_QUEUED: | |
566 | break; | |
567 | case FIO_Q_BUSY: | |
568 | requeue_io_u(td, &io_u); | |
569 | ret2 = td_io_commit(td); | |
570 | if (ret2 < 0) | |
571 | ret = ret2; | |
572 | break; | |
573 | default: | |
574 | assert(ret < 0); | |
575 | td_verror(td, -ret, "td_io_queue"); | |
576 | break; | |
577 | } | |
578 | ||
fbccf46c | 579 | if (break_on_this_error(td, ddir, &ret)) |
2e1df07d JA |
580 | break; |
581 | ||
582 | /* | |
583 | * if we can queue more, do so. but check if there are | |
584 | * completed io_u's first. Note that we can get BUSY even | |
585 | * without IO queued, if the system is resource starved. | |
586 | */ | |
002fe734 | 587 | reap: |
2e1df07d JA |
588 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); |
589 | if (full || !td->o.iodepth_batch_complete) { | |
590 | min_events = min(td->o.iodepth_batch_complete, | |
591 | td->cur_depth); | |
8a74b56d JA |
592 | /* |
593 | * if the queue is full, we MUST reap at least 1 event | |
594 | */ | |
595 | if (full && !min_events) | |
2e1df07d JA |
596 | min_events = 1; |
597 | ||
598 | do { | |
599 | /* | |
600 | * Reap required number of io units, if any, | |
601 | * and do the verification on them through | |
602 | * the callback handler | |
603 | */ | |
100f49f1 | 604 | if (io_u_queued_complete(td, min_events, bytes_done) < 0) { |
2e1df07d JA |
605 | ret = -1; |
606 | break; | |
607 | } | |
608 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
609 | } | |
610 | if (ret < 0) | |
611 | break; | |
612 | } | |
613 | ||
c97f1ad6 JA |
614 | check_update_rusage(td); |
615 | ||
2e1df07d JA |
616 | if (!td->error) { |
617 | min_events = td->cur_depth; | |
618 | ||
619 | if (min_events) | |
620 | ret = io_u_queued_complete(td, min_events, NULL); | |
621 | } else | |
622 | cleanup_pending_aio(td); | |
623 | ||
624 | td_set_runstate(td, TD_RUNNING); | |
625 | ||
626 | dprint(FD_VERIFY, "exiting loop\n"); | |
627 | } | |
628 | ||
3939fe85 JA |
629 | static unsigned int exceeds_number_ios(struct thread_data *td) |
630 | { | |
631 | unsigned long long number_ios; | |
632 | ||
633 | if (!td->o.number_ios) | |
634 | return 0; | |
635 | ||
636 | number_ios = ddir_rw_sum(td->this_io_blocks); | |
637 | number_ios += td->io_u_queued + td->io_u_in_flight; | |
638 | ||
639 | return number_ios >= td->o.number_ios; | |
640 | } | |
641 | ||
f7078f7b JA |
642 | static int io_bytes_exceeded(struct thread_data *td) |
643 | { | |
644 | unsigned long long bytes; | |
645 | ||
646 | if (td_rw(td)) | |
6eaf09d6 | 647 | bytes = td->this_io_bytes[DDIR_READ] + td->this_io_bytes[DDIR_WRITE]; |
f7078f7b | 648 | else if (td_write(td)) |
6eaf09d6 SL |
649 | bytes = td->this_io_bytes[DDIR_WRITE]; |
650 | else if (td_read(td)) | |
651 | bytes = td->this_io_bytes[DDIR_READ]; | |
f7078f7b | 652 | else |
6eaf09d6 | 653 | bytes = td->this_io_bytes[DDIR_TRIM]; |
f7078f7b | 654 | |
3939fe85 | 655 | return bytes >= td->o.size || exceeds_number_ios(td); |
f7078f7b JA |
656 | } |
657 | ||
2e1df07d JA |
658 | /* |
659 | * Main IO worker function. It retrieves io_u's to process and queues | |
660 | * and reaps them, checking for rate and errors along the way. | |
100f49f1 JA |
661 | * |
662 | * Returns number of bytes written and trimmed. | |
2e1df07d | 663 | */ |
100f49f1 | 664 | static uint64_t do_io(struct thread_data *td) |
2e1df07d | 665 | { |
100f49f1 | 666 | uint64_t bytes_done[DDIR_RWDIR_CNT] = { 0, 0, 0 }; |
2e1df07d JA |
667 | unsigned int i; |
668 | int ret = 0; | |
c2703bf3 | 669 | uint64_t total_bytes, bytes_issued = 0; |
2e1df07d JA |
670 | |
671 | if (in_ramp_time(td)) | |
672 | td_set_runstate(td, TD_RAMP); | |
673 | else | |
674 | td_set_runstate(td, TD_RUNNING); | |
675 | ||
3e260a46 JA |
676 | lat_target_init(td); |
677 | ||
78a6469c JA |
678 | /* |
679 | * If verify_backlog is enabled, we'll run the verify in this | |
680 | * handler as well. For that case, we may need up to twice the | |
681 | * amount of bytes. | |
682 | */ | |
c2703bf3 | 683 | total_bytes = td->o.size; |
78a6469c JA |
684 | if (td->o.verify != VERIFY_NONE && |
685 | (td_write(td) && td->o.verify_backlog)) | |
c2703bf3 JA |
686 | total_bytes += td->o.size; |
687 | ||
f7078f7b | 688 | while ((td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || |
c04e4661 DE |
689 | (!flist_empty(&td->trim_list)) || !io_bytes_exceeded(td) || |
690 | td->o.time_based) { | |
2e1df07d | 691 | struct timeval comp_time; |
2e1df07d JA |
692 | int min_evts = 0; |
693 | struct io_u *io_u; | |
694 | int ret2, full; | |
695 | enum fio_ddir ddir; | |
696 | ||
c97f1ad6 JA |
697 | check_update_rusage(td); |
698 | ||
7d7803fa | 699 | if (td->terminate || td->done) |
2e1df07d JA |
700 | break; |
701 | ||
702 | update_tv_cache(td); | |
703 | ||
704 | if (runtime_exceeded(td, &td->tv_cache)) { | |
705 | __update_tv_cache(td); | |
706 | if (runtime_exceeded(td, &td->tv_cache)) { | |
707 | td->terminate = 1; | |
708 | break; | |
709 | } | |
710 | } | |
711 | ||
9e684a49 DE |
712 | if (flow_threshold_exceeded(td)) |
713 | continue; | |
714 | ||
c2703bf3 | 715 | if (bytes_issued >= total_bytes) |
20876c53 JC |
716 | break; |
717 | ||
2e1df07d | 718 | io_u = get_io_u(td); |
002fe734 JA |
719 | if (IS_ERR_OR_NULL(io_u)) { |
720 | int err = PTR_ERR(io_u); | |
721 | ||
722 | io_u = NULL; | |
723 | if (err == -EBUSY) { | |
724 | ret = FIO_Q_BUSY; | |
725 | goto reap; | |
726 | } | |
3e260a46 JA |
727 | if (td->o.latency_target) |
728 | goto reap; | |
2e1df07d | 729 | break; |
3e260a46 | 730 | } |
2e1df07d JA |
731 | |
732 | ddir = io_u->ddir; | |
733 | ||
734 | /* | |
82af2a7c JA |
735 | * Add verification end_io handler if: |
736 | * - Asked to verify (!td_rw(td)) | |
737 | * - Or the io_u is from our verify list (mixed write/ver) | |
2e1df07d JA |
738 | */ |
739 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ && | |
82af2a7c | 740 | ((io_u->flags & IO_U_F_VER_LIST) || !td_rw(td))) { |
c4b6117b PV |
741 | |
742 | if (!td->o.verify_pattern_bytes) { | |
743 | io_u->rand_seed = __rand(&td->__verify_state); | |
744 | if (sizeof(int) != sizeof(long *)) | |
745 | io_u->rand_seed *= __rand(&td->__verify_state); | |
746 | } | |
747 | ||
2e1df07d JA |
748 | if (td->o.verify_async) |
749 | io_u->end_io = verify_io_u_async; | |
750 | else | |
751 | io_u->end_io = verify_io_u; | |
752 | td_set_runstate(td, TD_VERIFYING); | |
753 | } else if (in_ramp_time(td)) | |
754 | td_set_runstate(td, TD_RAMP); | |
755 | else | |
756 | td_set_runstate(td, TD_RUNNING); | |
757 | ||
9a50c5c5 | 758 | /* |
f9401285 JA |
759 | * Always log IO before it's issued, so we know the specific |
760 | * order of it. The logged unit will track when the IO has | |
761 | * completed. | |
9a50c5c5 | 762 | */ |
c4b6117b PV |
763 | if (td_write(td) && io_u->ddir == DDIR_WRITE && |
764 | td->o.do_verify && | |
765 | td->o.verify != VERIFY_NONE && | |
f9401285 | 766 | !td->o.experimental_verify) |
c4b6117b PV |
767 | log_io_piece(td, io_u); |
768 | ||
2e1df07d JA |
769 | ret = td_io_queue(td, io_u); |
770 | switch (ret) { | |
771 | case FIO_Q_COMPLETED: | |
772 | if (io_u->error) { | |
773 | ret = -io_u->error; | |
774 | clear_io_u(td, io_u); | |
775 | } else if (io_u->resid) { | |
776 | int bytes = io_u->xfer_buflen - io_u->resid; | |
777 | struct fio_file *f = io_u->file; | |
778 | ||
20876c53 | 779 | bytes_issued += bytes; |
2e1df07d JA |
780 | /* |
781 | * zero read, fail | |
782 | */ | |
783 | if (!bytes) { | |
784 | td_verror(td, EIO, "full resid"); | |
785 | put_io_u(td, io_u); | |
786 | break; | |
787 | } | |
788 | ||
789 | io_u->xfer_buflen = io_u->resid; | |
790 | io_u->xfer_buf += bytes; | |
791 | io_u->offset += bytes; | |
792 | ||
793 | if (ddir_rw(io_u->ddir)) | |
794 | td->ts.short_io_u[io_u->ddir]++; | |
795 | ||
796 | if (io_u->offset == f->real_file_size) | |
797 | goto sync_done; | |
798 | ||
799 | requeue_io_u(td, &io_u); | |
800 | } else { | |
801 | sync_done: | |
6eaf09d6 SL |
802 | if (__should_check_rate(td, DDIR_READ) || |
803 | __should_check_rate(td, DDIR_WRITE) || | |
804 | __should_check_rate(td, DDIR_TRIM)) | |
2e1df07d JA |
805 | fio_gettime(&comp_time, NULL); |
806 | ||
807 | ret = io_u_sync_complete(td, io_u, bytes_done); | |
808 | if (ret < 0) | |
809 | break; | |
20876c53 | 810 | bytes_issued += io_u->xfer_buflen; |
2e1df07d JA |
811 | } |
812 | break; | |
813 | case FIO_Q_QUEUED: | |
814 | /* | |
815 | * if the engine doesn't have a commit hook, | |
816 | * the io_u is really queued. if it does have such | |
817 | * a hook, it has to call io_u_queued() itself. | |
818 | */ | |
819 | if (td->io_ops->commit == NULL) | |
820 | io_u_queued(td, io_u); | |
20876c53 | 821 | bytes_issued += io_u->xfer_buflen; |
2e1df07d JA |
822 | break; |
823 | case FIO_Q_BUSY: | |
824 | requeue_io_u(td, &io_u); | |
825 | ret2 = td_io_commit(td); | |
826 | if (ret2 < 0) | |
827 | ret = ret2; | |
828 | break; | |
829 | default: | |
830 | assert(ret < 0); | |
831 | put_io_u(td, io_u); | |
832 | break; | |
833 | } | |
834 | ||
835 | if (break_on_this_error(td, ddir, &ret)) | |
836 | break; | |
837 | ||
838 | /* | |
839 | * See if we need to complete some commands. Note that we | |
840 | * can get BUSY even without IO queued, if the system is | |
841 | * resource starved. | |
842 | */ | |
3e260a46 | 843 | reap: |
2e1df07d JA |
844 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); |
845 | if (full || !td->o.iodepth_batch_complete) { | |
846 | min_evts = min(td->o.iodepth_batch_complete, | |
847 | td->cur_depth); | |
8a74b56d JA |
848 | /* |
849 | * if the queue is full, we MUST reap at least 1 event | |
850 | */ | |
851 | if (full && !min_evts) | |
2e1df07d JA |
852 | min_evts = 1; |
853 | ||
6eaf09d6 SL |
854 | if (__should_check_rate(td, DDIR_READ) || |
855 | __should_check_rate(td, DDIR_WRITE) || | |
856 | __should_check_rate(td, DDIR_TRIM)) | |
2e1df07d JA |
857 | fio_gettime(&comp_time, NULL); |
858 | ||
859 | do { | |
860 | ret = io_u_queued_complete(td, min_evts, bytes_done); | |
861 | if (ret < 0) | |
862 | break; | |
863 | ||
864 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
865 | } | |
866 | ||
867 | if (ret < 0) | |
868 | break; | |
d5abee06 | 869 | if (!ddir_rw_sum(bytes_done) && !(td->io_ops->flags & FIO_NOIO)) |
2e1df07d JA |
870 | continue; |
871 | ||
872 | if (!in_ramp_time(td) && should_check_rate(td, bytes_done)) { | |
873 | if (check_min_rate(td, &comp_time, bytes_done)) { | |
874 | if (exitall_on_terminate) | |
875 | fio_terminate_threads(td->groupid); | |
876 | td_verror(td, EIO, "check_min_rate"); | |
877 | break; | |
878 | } | |
879 | } | |
3e260a46 JA |
880 | if (!in_ramp_time(td) && td->o.latency_target) |
881 | lat_target_check(td); | |
2e1df07d JA |
882 | |
883 | if (td->o.thinktime) { | |
884 | unsigned long long b; | |
885 | ||
342f4be4 | 886 | b = ddir_rw_sum(td->io_blocks); |
2e1df07d JA |
887 | if (!(b % td->o.thinktime_blocks)) { |
888 | int left; | |
889 | ||
002e7183 JA |
890 | io_u_quiesce(td); |
891 | ||
2e1df07d JA |
892 | if (td->o.thinktime_spin) |
893 | usec_spin(td->o.thinktime_spin); | |
894 | ||
895 | left = td->o.thinktime - td->o.thinktime_spin; | |
896 | if (left) | |
897 | usec_sleep(td, left); | |
898 | } | |
899 | } | |
900 | } | |
901 | ||
c97f1ad6 JA |
902 | check_update_rusage(td); |
903 | ||
2e1df07d | 904 | if (td->trim_entries) |
4e0a8fa2 | 905 | log_err("fio: %lu trim entries leaked?\n", td->trim_entries); |
2e1df07d JA |
906 | |
907 | if (td->o.fill_device && td->error == ENOSPC) { | |
908 | td->error = 0; | |
909 | td->terminate = 1; | |
910 | } | |
911 | if (!td->error) { | |
912 | struct fio_file *f; | |
913 | ||
914 | i = td->cur_depth; | |
915 | if (i) { | |
5bd5f71a | 916 | ret = io_u_queued_complete(td, i, bytes_done); |
2e1df07d JA |
917 | if (td->o.fill_device && td->error == ENOSPC) |
918 | td->error = 0; | |
919 | } | |
920 | ||
921 | if (should_fsync(td) && td->o.end_fsync) { | |
922 | td_set_runstate(td, TD_FSYNCING); | |
923 | ||
924 | for_each_file(td, f, i) { | |
61ee0f86 | 925 | if (!fio_file_fsync(td, f)) |
2e1df07d | 926 | continue; |
61ee0f86 JA |
927 | |
928 | log_err("fio: end_fsync failed for file %s\n", | |
929 | f->file_name); | |
2e1df07d JA |
930 | } |
931 | } | |
932 | } else | |
933 | cleanup_pending_aio(td); | |
934 | ||
935 | /* | |
936 | * stop job if we failed doing any IO | |
937 | */ | |
342f4be4 | 938 | if (!ddir_rw_sum(td->this_io_bytes)) |
2e1df07d | 939 | td->done = 1; |
100f49f1 JA |
940 | |
941 | return bytes_done[DDIR_WRITE] + bytes_done[DDIR_TRIM]; | |
2e1df07d JA |
942 | } |
943 | ||
944 | static void cleanup_io_u(struct thread_data *td) | |
945 | { | |
2e1df07d JA |
946 | struct io_u *io_u; |
947 | ||
2ae0b204 | 948 | while ((io_u = io_u_qpop(&td->io_u_freelist)) != NULL) { |
c73ed246 JA |
949 | |
950 | if (td->io_ops->io_u_free) | |
951 | td->io_ops->io_u_free(td, io_u); | |
952 | ||
2e1df07d JA |
953 | fio_memfree(io_u, sizeof(*io_u)); |
954 | } | |
955 | ||
956 | free_io_mem(td); | |
2ae0b204 JA |
957 | |
958 | io_u_rexit(&td->io_u_requeues); | |
959 | io_u_qexit(&td->io_u_freelist); | |
960 | io_u_qexit(&td->io_u_all); | |
2e1df07d JA |
961 | } |
962 | ||
963 | static int init_io_u(struct thread_data *td) | |
964 | { | |
965 | struct io_u *io_u; | |
9c42684e | 966 | unsigned int max_bs, min_write; |
2e1df07d | 967 | int cl_align, i, max_units; |
2ae0b204 | 968 | int data_xfer = 1, err; |
2e1df07d JA |
969 | char *p; |
970 | ||
971 | max_units = td->o.iodepth; | |
74f4b020 | 972 | max_bs = td_max_bs(td); |
9c42684e | 973 | min_write = td->o.min_bs[DDIR_WRITE]; |
2e1df07d JA |
974 | td->orig_buffer_size = (unsigned long long) max_bs |
975 | * (unsigned long long) max_units; | |
976 | ||
88045e04 | 977 | if ((td->io_ops->flags & FIO_NOIO) || !(td_read(td) || td_write(td))) |
59d8d0f5 JA |
978 | data_xfer = 0; |
979 | ||
2ae0b204 JA |
980 | err = 0; |
981 | err += io_u_rinit(&td->io_u_requeues, td->o.iodepth); | |
982 | err += io_u_qinit(&td->io_u_freelist, td->o.iodepth); | |
983 | err += io_u_qinit(&td->io_u_all, td->o.iodepth); | |
984 | ||
985 | if (err) { | |
986 | log_err("fio: failed setting up IO queues\n"); | |
987 | return 1; | |
988 | } | |
989 | ||
fd8a09b8 | 990 | /* |
991 | * if we may later need to do address alignment, then add any | |
992 | * possible adjustment here so that we don't cause a buffer | |
993 | * overflow later. this adjustment may be too much if we get | |
994 | * lucky and the allocator gives us an aligned address. | |
995 | */ | |
d01612f3 CM |
996 | if (td->o.odirect || td->o.mem_align || td->o.oatomic || |
997 | (td->io_ops->flags & FIO_RAWIO)) | |
fd8a09b8 | 998 | td->orig_buffer_size += page_mask + td->o.mem_align; |
999 | ||
2e1df07d JA |
1000 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { |
1001 | unsigned long bs; | |
1002 | ||
1003 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; | |
1004 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); | |
1005 | } | |
1006 | ||
1007 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { | |
1008 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
1009 | return 1; | |
1010 | } | |
1011 | ||
59d8d0f5 | 1012 | if (data_xfer && allocate_io_mem(td)) |
2e1df07d JA |
1013 | return 1; |
1014 | ||
d01612f3 | 1015 | if (td->o.odirect || td->o.mem_align || td->o.oatomic || |
2e1df07d JA |
1016 | (td->io_ops->flags & FIO_RAWIO)) |
1017 | p = PAGE_ALIGN(td->orig_buffer) + td->o.mem_align; | |
1018 | else | |
1019 | p = td->orig_buffer; | |
1020 | ||
1021 | cl_align = os_cache_line_size(); | |
1022 | ||
1023 | for (i = 0; i < max_units; i++) { | |
1024 | void *ptr; | |
1025 | ||
1026 | if (td->terminate) | |
1027 | return 1; | |
1028 | ||
1029 | ptr = fio_memalign(cl_align, sizeof(*io_u)); | |
1030 | if (!ptr) { | |
1031 | log_err("fio: unable to allocate aligned memory\n"); | |
1032 | break; | |
1033 | } | |
1034 | ||
1035 | io_u = ptr; | |
1036 | memset(io_u, 0, sizeof(*io_u)); | |
2ae0b204 | 1037 | INIT_FLIST_HEAD(&io_u->verify_list); |
2e1df07d JA |
1038 | dprint(FD_MEM, "io_u alloc %p, index %u\n", io_u, i); |
1039 | ||
59d8d0f5 | 1040 | if (data_xfer) { |
2e1df07d JA |
1041 | io_u->buf = p; |
1042 | dprint(FD_MEM, "io_u %p, mem %p\n", io_u, io_u->buf); | |
1043 | ||
1044 | if (td_write(td)) | |
9c42684e | 1045 | io_u_fill_buffer(td, io_u, min_write, max_bs); |
2e1df07d JA |
1046 | if (td_write(td) && td->o.verify_pattern_bytes) { |
1047 | /* | |
1048 | * Fill the buffer with the pattern if we are | |
1049 | * going to be doing writes. | |
1050 | */ | |
ce35b1ec | 1051 | fill_verify_pattern(td, io_u->buf, max_bs, io_u, 0, 0); |
2e1df07d JA |
1052 | } |
1053 | } | |
1054 | ||
1055 | io_u->index = i; | |
1056 | io_u->flags = IO_U_F_FREE; | |
2ae0b204 JA |
1057 | io_u_qpush(&td->io_u_freelist, io_u); |
1058 | ||
1059 | /* | |
1060 | * io_u never leaves this stack, used for iteration of all | |
1061 | * io_u buffers. | |
1062 | */ | |
1063 | io_u_qpush(&td->io_u_all, io_u); | |
c73ed246 JA |
1064 | |
1065 | if (td->io_ops->io_u_init) { | |
1066 | int ret = td->io_ops->io_u_init(td, io_u); | |
1067 | ||
1068 | if (ret) { | |
1069 | log_err("fio: failed to init engine data: %d\n", ret); | |
1070 | return 1; | |
1071 | } | |
1072 | } | |
1073 | ||
2e1df07d JA |
1074 | p += max_bs; |
1075 | } | |
1076 | ||
1077 | return 0; | |
1078 | } | |
1079 | ||
1080 | static int switch_ioscheduler(struct thread_data *td) | |
1081 | { | |
1082 | char tmp[256], tmp2[128]; | |
1083 | FILE *f; | |
1084 | int ret; | |
1085 | ||
1086 | if (td->io_ops->flags & FIO_DISKLESSIO) | |
1087 | return 0; | |
1088 | ||
1089 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); | |
1090 | ||
1091 | f = fopen(tmp, "r+"); | |
1092 | if (!f) { | |
1093 | if (errno == ENOENT) { | |
1094 | log_err("fio: os or kernel doesn't support IO scheduler" | |
1095 | " switching\n"); | |
1096 | return 0; | |
1097 | } | |
1098 | td_verror(td, errno, "fopen iosched"); | |
1099 | return 1; | |
1100 | } | |
1101 | ||
1102 | /* | |
1103 | * Set io scheduler. | |
1104 | */ | |
1105 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); | |
1106 | if (ferror(f) || ret != 1) { | |
1107 | td_verror(td, errno, "fwrite"); | |
1108 | fclose(f); | |
1109 | return 1; | |
1110 | } | |
1111 | ||
1112 | rewind(f); | |
1113 | ||
1114 | /* | |
1115 | * Read back and check that the selected scheduler is now the default. | |
1116 | */ | |
e0c8b741 JA |
1117 | memset(tmp, 0, sizeof(tmp)); |
1118 | ret = fread(tmp, 1, sizeof(tmp) - 1, f); | |
2e1df07d JA |
1119 | if (ferror(f) || ret < 0) { |
1120 | td_verror(td, errno, "fread"); | |
1121 | fclose(f); | |
1122 | return 1; | |
1123 | } | |
1124 | ||
1125 | sprintf(tmp2, "[%s]", td->o.ioscheduler); | |
1126 | if (!strstr(tmp, tmp2)) { | |
1127 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); | |
1128 | td_verror(td, EINVAL, "iosched_switch"); | |
1129 | fclose(f); | |
1130 | return 1; | |
1131 | } | |
1132 | ||
1133 | fclose(f); | |
1134 | return 0; | |
1135 | } | |
1136 | ||
1137 | static int keep_running(struct thread_data *td) | |
1138 | { | |
2e1df07d JA |
1139 | if (td->done) |
1140 | return 0; | |
1141 | if (td->o.time_based) | |
1142 | return 1; | |
1143 | if (td->o.loops) { | |
1144 | td->o.loops--; | |
1145 | return 1; | |
1146 | } | |
3939fe85 JA |
1147 | if (exceeds_number_ios(td)) |
1148 | return 0; | |
26251d8d | 1149 | |
ee98e234 | 1150 | if (td->o.size != -1ULL && ddir_rw_sum(td->io_bytes) < td->o.size) { |
5bd5f71a JA |
1151 | uint64_t diff; |
1152 | ||
1153 | /* | |
1154 | * If the difference is less than the minimum IO size, we | |
1155 | * are done. | |
1156 | */ | |
1157 | diff = td->o.size - ddir_rw_sum(td->io_bytes); | |
74f4b020 | 1158 | if (diff < td_max_bs(td)) |
5bd5f71a JA |
1159 | return 0; |
1160 | ||
002fe734 JA |
1161 | if (fio_files_done(td)) |
1162 | return 0; | |
1163 | ||
2e1df07d | 1164 | return 1; |
5bd5f71a | 1165 | } |
2e1df07d JA |
1166 | |
1167 | return 0; | |
1168 | } | |
1169 | ||
ce486495 | 1170 | static int exec_string(struct thread_options *o, const char *string, const char *mode) |
2e1df07d | 1171 | { |
ce486495 | 1172 | int ret, newlen = strlen(string) + strlen(o->name) + strlen(mode) + 9 + 1; |
2e1df07d JA |
1173 | char *str; |
1174 | ||
1175 | str = malloc(newlen); | |
ce486495 | 1176 | sprintf(str, "%s &> %s.%s.txt", string, o->name, mode); |
2e1df07d | 1177 | |
ce486495 | 1178 | log_info("%s : Saving output of %s in %s.%s.txt\n",o->name, mode, o->name, mode); |
2e1df07d JA |
1179 | ret = system(str); |
1180 | if (ret == -1) | |
1181 | log_err("fio: exec of cmd <%s> failed\n", str); | |
1182 | ||
1183 | free(str); | |
1184 | return ret; | |
1185 | } | |
1186 | ||
62167762 JC |
1187 | /* |
1188 | * Dry run to compute correct state of numberio for verification. | |
1189 | */ | |
1190 | static uint64_t do_dry_run(struct thread_data *td) | |
1191 | { | |
1192 | uint64_t bytes_done[DDIR_RWDIR_CNT] = { 0, 0, 0 }; | |
1193 | ||
1194 | td_set_runstate(td, TD_RUNNING); | |
1195 | ||
1196 | while ((td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || | |
1197 | (!flist_empty(&td->trim_list)) || !io_bytes_exceeded(td)) { | |
1198 | struct io_u *io_u; | |
1199 | int ret; | |
1200 | ||
1201 | if (td->terminate || td->done) | |
1202 | break; | |
1203 | ||
1204 | io_u = get_io_u(td); | |
1205 | if (!io_u) | |
1206 | break; | |
1207 | ||
1208 | io_u->flags |= IO_U_F_FLIGHT; | |
1209 | io_u->error = 0; | |
1210 | io_u->resid = 0; | |
1211 | if (ddir_rw(acct_ddir(io_u))) | |
1212 | td->io_issues[acct_ddir(io_u)]++; | |
1213 | if (ddir_rw(io_u->ddir)) { | |
1214 | io_u_mark_depth(td, 1); | |
1215 | td->ts.total_io_u[io_u->ddir]++; | |
1216 | } | |
1217 | ||
2e63e96b PV |
1218 | if (td_write(td) && io_u->ddir == DDIR_WRITE && |
1219 | td->o.do_verify && | |
1220 | td->o.verify != VERIFY_NONE && | |
1221 | !td->o.experimental_verify) | |
1222 | log_io_piece(td, io_u); | |
1223 | ||
62167762 JC |
1224 | ret = io_u_sync_complete(td, io_u, bytes_done); |
1225 | (void) ret; | |
1226 | } | |
1227 | ||
1228 | return bytes_done[DDIR_WRITE] + bytes_done[DDIR_TRIM]; | |
1229 | } | |
1230 | ||
2e1df07d JA |
1231 | /* |
1232 | * Entry point for the thread based jobs. The process based jobs end up | |
1233 | * here as well, after a little setup. | |
1234 | */ | |
1235 | static void *thread_main(void *data) | |
1236 | { | |
1237 | unsigned long long elapsed; | |
1238 | struct thread_data *td = data; | |
4896473e | 1239 | struct thread_options *o = &td->o; |
2e1df07d JA |
1240 | pthread_condattr_t attr; |
1241 | int clear_state; | |
28727df7 | 1242 | int ret; |
2e1df07d | 1243 | |
4896473e | 1244 | if (!o->use_thread) { |
2e1df07d JA |
1245 | setsid(); |
1246 | td->pid = getpid(); | |
1247 | } else | |
1248 | td->pid = gettid(); | |
1249 | ||
334185e9 BC |
1250 | /* |
1251 | * fio_time_init() may not have been called yet if running as a server | |
1252 | */ | |
1253 | fio_time_init(); | |
1254 | ||
4896473e | 1255 | fio_local_clock_init(o->use_thread); |
5d879392 | 1256 | |
2e1df07d JA |
1257 | dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); |
1258 | ||
122c7725 JA |
1259 | if (is_backend) |
1260 | fio_server_send_start(td); | |
1261 | ||
2e1df07d JA |
1262 | INIT_FLIST_HEAD(&td->io_log_list); |
1263 | INIT_FLIST_HEAD(&td->io_hist_list); | |
1264 | INIT_FLIST_HEAD(&td->verify_list); | |
1265 | INIT_FLIST_HEAD(&td->trim_list); | |
1ae83d45 | 1266 | INIT_FLIST_HEAD(&td->next_rand_list); |
2e1df07d JA |
1267 | pthread_mutex_init(&td->io_u_lock, NULL); |
1268 | td->io_hist_tree = RB_ROOT; | |
1269 | ||
1270 | pthread_condattr_init(&attr); | |
1271 | pthread_cond_init(&td->verify_cond, &attr); | |
1272 | pthread_cond_init(&td->free_cond, &attr); | |
1273 | ||
1274 | td_set_runstate(td, TD_INITIALIZED); | |
1275 | dprint(FD_MUTEX, "up startup_mutex\n"); | |
1276 | fio_mutex_up(startup_mutex); | |
1277 | dprint(FD_MUTEX, "wait on td->mutex\n"); | |
1278 | fio_mutex_down(td->mutex); | |
1279 | dprint(FD_MUTEX, "done waiting on td->mutex\n"); | |
1280 | ||
2e1df07d JA |
1281 | /* |
1282 | * A new gid requires privilege, so we need to do this before setting | |
1283 | * the uid. | |
1284 | */ | |
4896473e | 1285 | if (o->gid != -1U && setgid(o->gid)) { |
2e1df07d JA |
1286 | td_verror(td, errno, "setgid"); |
1287 | goto err; | |
1288 | } | |
4896473e | 1289 | if (o->uid != -1U && setuid(o->uid)) { |
2e1df07d JA |
1290 | td_verror(td, errno, "setuid"); |
1291 | goto err; | |
1292 | } | |
1293 | ||
1294 | /* | |
1295 | * If we have a gettimeofday() thread, make sure we exclude that | |
1296 | * thread from this job | |
1297 | */ | |
4896473e JA |
1298 | if (o->gtod_cpu) |
1299 | fio_cpu_clear(&o->cpumask, o->gtod_cpu); | |
2e1df07d JA |
1300 | |
1301 | /* | |
1302 | * Set affinity first, in case it has an impact on the memory | |
1303 | * allocations. | |
1304 | */ | |
4896473e | 1305 | if (o->cpumask_set) { |
c2acfbac | 1306 | if (o->cpus_allowed_policy == FIO_CPUS_SPLIT) { |
30cb4c65 | 1307 | ret = fio_cpus_split(&o->cpumask, td->thread_number - 1); |
c2acfbac JA |
1308 | if (!ret) { |
1309 | log_err("fio: no CPUs set\n"); | |
1310 | log_err("fio: Try increasing number of available CPUs\n"); | |
1311 | td_verror(td, EINVAL, "cpus_split"); | |
1312 | goto err; | |
1313 | } | |
1314 | } | |
28727df7 JA |
1315 | ret = fio_setaffinity(td->pid, o->cpumask); |
1316 | if (ret == -1) { | |
4896473e JA |
1317 | td_verror(td, errno, "cpu_set_affinity"); |
1318 | goto err; | |
1319 | } | |
2e1df07d JA |
1320 | } |
1321 | ||
67bf9823 | 1322 | #ifdef CONFIG_LIBNUMA |
d0b937ed | 1323 | /* numa node setup */ |
4896473e | 1324 | if (o->numa_cpumask_set || o->numa_memmask_set) { |
d0b937ed YR |
1325 | int ret; |
1326 | ||
1327 | if (numa_available() < 0) { | |
1328 | td_verror(td, errno, "Does not support NUMA API\n"); | |
1329 | goto err; | |
1330 | } | |
1331 | ||
4896473e JA |
1332 | if (o->numa_cpumask_set) { |
1333 | ret = numa_run_on_node_mask(o->numa_cpunodesmask); | |
d0b937ed YR |
1334 | if (ret == -1) { |
1335 | td_verror(td, errno, \ | |
1336 | "numa_run_on_node_mask failed\n"); | |
1337 | goto err; | |
1338 | } | |
1339 | } | |
1340 | ||
4896473e | 1341 | if (o->numa_memmask_set) { |
d0b937ed | 1342 | |
4896473e | 1343 | switch (o->numa_mem_mode) { |
d0b937ed | 1344 | case MPOL_INTERLEAVE: |
4896473e | 1345 | numa_set_interleave_mask(o->numa_memnodesmask); |
d0b937ed YR |
1346 | break; |
1347 | case MPOL_BIND: | |
4896473e | 1348 | numa_set_membind(o->numa_memnodesmask); |
d0b937ed YR |
1349 | break; |
1350 | case MPOL_LOCAL: | |
1351 | numa_set_localalloc(); | |
1352 | break; | |
1353 | case MPOL_PREFERRED: | |
4896473e | 1354 | numa_set_preferred(o->numa_mem_prefer_node); |
d0b937ed YR |
1355 | break; |
1356 | case MPOL_DEFAULT: | |
1357 | default: | |
1358 | break; | |
1359 | } | |
1360 | ||
1361 | } | |
1362 | } | |
1363 | #endif | |
1364 | ||
9a3f1100 JA |
1365 | if (fio_pin_memory(td)) |
1366 | goto err; | |
1367 | ||
2e1df07d JA |
1368 | /* |
1369 | * May alter parameters that init_io_u() will use, so we need to | |
1370 | * do this first. | |
1371 | */ | |
1372 | if (init_iolog(td)) | |
1373 | goto err; | |
1374 | ||
1375 | if (init_io_u(td)) | |
1376 | goto err; | |
1377 | ||
4896473e | 1378 | if (o->verify_async && verify_async_init(td)) |
2e1df07d JA |
1379 | goto err; |
1380 | ||
28727df7 JA |
1381 | if (o->ioprio) { |
1382 | ret = ioprio_set(IOPRIO_WHO_PROCESS, 0, o->ioprio_class, o->ioprio); | |
1383 | if (ret == -1) { | |
2e1df07d JA |
1384 | td_verror(td, errno, "ioprio_set"); |
1385 | goto err; | |
1386 | } | |
1387 | } | |
1388 | ||
4896473e | 1389 | if (o->cgroup && cgroup_setup(td, cgroup_list, &cgroup_mnt)) |
2e1df07d JA |
1390 | goto err; |
1391 | ||
649c10c5 | 1392 | errno = 0; |
4896473e | 1393 | if (nice(o->nice) == -1 && errno != 0) { |
2e1df07d JA |
1394 | td_verror(td, errno, "nice"); |
1395 | goto err; | |
1396 | } | |
1397 | ||
4896473e | 1398 | if (o->ioscheduler && switch_ioscheduler(td)) |
2e1df07d JA |
1399 | goto err; |
1400 | ||
4896473e | 1401 | if (!o->create_serialize && setup_files(td)) |
2e1df07d JA |
1402 | goto err; |
1403 | ||
1404 | if (td_io_init(td)) | |
1405 | goto err; | |
1406 | ||
1407 | if (init_random_map(td)) | |
1408 | goto err; | |
1409 | ||
ce486495 | 1410 | if (o->exec_prerun && exec_string(o, o->exec_prerun, (const char *)"prerun")) |
4896473e | 1411 | goto err; |
2e1df07d | 1412 | |
4896473e | 1413 | if (o->pre_read) { |
2e1df07d JA |
1414 | if (pre_read_files(td) < 0) |
1415 | goto err; | |
1416 | } | |
1417 | ||
dc5bfbb2 JA |
1418 | fio_verify_init(td); |
1419 | ||
2e1df07d | 1420 | fio_gettime(&td->epoch, NULL); |
44404c5a | 1421 | fio_getrusage(&td->ru_start); |
2e1df07d JA |
1422 | clear_state = 0; |
1423 | while (keep_running(td)) { | |
100f49f1 JA |
1424 | uint64_t verify_bytes; |
1425 | ||
2e1df07d JA |
1426 | fio_gettime(&td->start, NULL); |
1427 | memcpy(&td->bw_sample_time, &td->start, sizeof(td->start)); | |
1428 | memcpy(&td->iops_sample_time, &td->start, sizeof(td->start)); | |
1429 | memcpy(&td->tv_cache, &td->start, sizeof(td->start)); | |
1430 | ||
4896473e JA |
1431 | if (o->ratemin[DDIR_READ] || o->ratemin[DDIR_WRITE] || |
1432 | o->ratemin[DDIR_TRIM]) { | |
6eaf09d6 | 1433 | memcpy(&td->lastrate[DDIR_READ], &td->bw_sample_time, |
2e1df07d | 1434 | sizeof(td->bw_sample_time)); |
6eaf09d6 SL |
1435 | memcpy(&td->lastrate[DDIR_WRITE], &td->bw_sample_time, |
1436 | sizeof(td->bw_sample_time)); | |
1437 | memcpy(&td->lastrate[DDIR_TRIM], &td->bw_sample_time, | |
2e1df07d JA |
1438 | sizeof(td->bw_sample_time)); |
1439 | } | |
1440 | ||
1441 | if (clear_state) | |
1442 | clear_io_state(td); | |
1443 | ||
1444 | prune_io_piece_log(td); | |
1445 | ||
62167762 JC |
1446 | if (td->o.verify_only && (td_write(td) || td_rw(td))) |
1447 | verify_bytes = do_dry_run(td); | |
1448 | else | |
1449 | verify_bytes = do_io(td); | |
2e1df07d JA |
1450 | |
1451 | clear_state = 1; | |
1452 | ||
1453 | if (td_read(td) && td->io_bytes[DDIR_READ]) { | |
1454 | elapsed = utime_since_now(&td->start); | |
1455 | td->ts.runtime[DDIR_READ] += elapsed; | |
1456 | } | |
1457 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { | |
1458 | elapsed = utime_since_now(&td->start); | |
1459 | td->ts.runtime[DDIR_WRITE] += elapsed; | |
1460 | } | |
6eaf09d6 SL |
1461 | if (td_trim(td) && td->io_bytes[DDIR_TRIM]) { |
1462 | elapsed = utime_since_now(&td->start); | |
1463 | td->ts.runtime[DDIR_TRIM] += elapsed; | |
1464 | } | |
2e1df07d JA |
1465 | |
1466 | if (td->error || td->terminate) | |
1467 | break; | |
1468 | ||
4896473e JA |
1469 | if (!o->do_verify || |
1470 | o->verify == VERIFY_NONE || | |
2e1df07d JA |
1471 | (td->io_ops->flags & FIO_UNIDIR)) |
1472 | continue; | |
1473 | ||
1474 | clear_io_state(td); | |
1475 | ||
1476 | fio_gettime(&td->start, NULL); | |
1477 | ||
100f49f1 | 1478 | do_verify(td, verify_bytes); |
2e1df07d JA |
1479 | |
1480 | td->ts.runtime[DDIR_READ] += utime_since_now(&td->start); | |
1481 | ||
1482 | if (td->error || td->terminate) | |
1483 | break; | |
1484 | } | |
1485 | ||
1486 | update_rusage_stat(td); | |
6eaf09d6 SL |
1487 | td->ts.runtime[DDIR_READ] = (td->ts.runtime[DDIR_READ] + 999) / 1000; |
1488 | td->ts.runtime[DDIR_WRITE] = (td->ts.runtime[DDIR_WRITE] + 999) / 1000; | |
1489 | td->ts.runtime[DDIR_TRIM] = (td->ts.runtime[DDIR_TRIM] + 999) / 1000; | |
2e1df07d | 1490 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
6eaf09d6 SL |
1491 | td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ]; |
1492 | td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE]; | |
1493 | td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM]; | |
2e1df07d | 1494 | |
9a3f1100 JA |
1495 | fio_unpin_memory(td); |
1496 | ||
905e3d4f | 1497 | fio_writeout_logs(td); |
2e1df07d | 1498 | |
4896473e | 1499 | if (o->exec_postrun) |
ce486495 | 1500 | exec_string(o, o->exec_postrun, (const char *)"postrun"); |
2e1df07d JA |
1501 | |
1502 | if (exitall_on_terminate) | |
1503 | fio_terminate_threads(td->groupid); | |
1504 | ||
1505 | err: | |
1506 | if (td->error) | |
1507 | log_info("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, | |
1508 | td->verror); | |
1509 | ||
4896473e | 1510 | if (o->verify_async) |
2e1df07d JA |
1511 | verify_async_exit(td); |
1512 | ||
1513 | close_and_free_files(td); | |
2e1df07d | 1514 | cleanup_io_u(td); |
32dbca2c | 1515 | close_ioengine(td); |
2e1df07d JA |
1516 | cgroup_shutdown(td, &cgroup_mnt); |
1517 | ||
4896473e JA |
1518 | if (o->cpumask_set) { |
1519 | int ret = fio_cpuset_exit(&o->cpumask); | |
2e1df07d JA |
1520 | |
1521 | td_verror(td, ret, "fio_cpuset_exit"); | |
1522 | } | |
1523 | ||
1524 | /* | |
1525 | * do this very late, it will log file closing as well | |
1526 | */ | |
4896473e | 1527 | if (o->write_iolog_file) |
2e1df07d JA |
1528 | write_iolog_close(td); |
1529 | ||
c97f1ad6 JA |
1530 | fio_mutex_remove(td->rusage_sem); |
1531 | td->rusage_sem = NULL; | |
1532 | ||
ea66e04f JA |
1533 | fio_mutex_remove(td->mutex); |
1534 | td->mutex = NULL; | |
1535 | ||
2e1df07d | 1536 | td_set_runstate(td, TD_EXITED); |
e43606c2 | 1537 | return (void *) (uintptr_t) td->error; |
2e1df07d JA |
1538 | } |
1539 | ||
1540 | ||
1541 | /* | |
1542 | * We cannot pass the td data into a forked process, so attach the td and | |
1543 | * pass it to the thread worker. | |
1544 | */ | |
1545 | static int fork_main(int shmid, int offset) | |
1546 | { | |
1547 | struct thread_data *td; | |
1548 | void *data, *ret; | |
1549 | ||
1550 | #ifndef __hpux | |
1551 | data = shmat(shmid, NULL, 0); | |
1552 | if (data == (void *) -1) { | |
1553 | int __err = errno; | |
1554 | ||
1555 | perror("shmat"); | |
1556 | return __err; | |
1557 | } | |
1558 | #else | |
1559 | /* | |
1560 | * HP-UX inherits shm mappings? | |
1561 | */ | |
1562 | data = threads; | |
1563 | #endif | |
1564 | ||
1565 | td = data + offset * sizeof(struct thread_data); | |
1566 | ret = thread_main(td); | |
1567 | shmdt(data); | |
e43606c2 | 1568 | return (int) (uintptr_t) ret; |
2e1df07d JA |
1569 | } |
1570 | ||
1571 | /* | |
1572 | * Run over the job map and reap the threads that have exited, if any. | |
1573 | */ | |
1574 | static void reap_threads(unsigned int *nr_running, unsigned int *t_rate, | |
1575 | unsigned int *m_rate) | |
1576 | { | |
1577 | struct thread_data *td; | |
1578 | unsigned int cputhreads, realthreads, pending; | |
1579 | int i, status, ret; | |
1580 | ||
1581 | /* | |
1582 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1583 | */ | |
1584 | realthreads = pending = cputhreads = 0; | |
1585 | for_each_td(td, i) { | |
1586 | int flags = 0; | |
1587 | ||
1588 | /* | |
1589 | * ->io_ops is NULL for a thread that has closed its | |
1590 | * io engine | |
1591 | */ | |
1592 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) | |
1593 | cputhreads++; | |
1594 | else | |
1595 | realthreads++; | |
1596 | ||
1597 | if (!td->pid) { | |
1598 | pending++; | |
1599 | continue; | |
1600 | } | |
1601 | if (td->runstate == TD_REAPED) | |
1602 | continue; | |
1603 | if (td->o.use_thread) { | |
1604 | if (td->runstate == TD_EXITED) { | |
1605 | td_set_runstate(td, TD_REAPED); | |
1606 | goto reaped; | |
1607 | } | |
1608 | continue; | |
1609 | } | |
1610 | ||
1611 | flags = WNOHANG; | |
1612 | if (td->runstate == TD_EXITED) | |
1613 | flags = 0; | |
1614 | ||
1615 | /* | |
1616 | * check if someone quit or got killed in an unusual way | |
1617 | */ | |
1618 | ret = waitpid(td->pid, &status, flags); | |
1619 | if (ret < 0) { | |
1620 | if (errno == ECHILD) { | |
1621 | log_err("fio: pid=%d disappeared %d\n", | |
1622 | (int) td->pid, td->runstate); | |
a5e371a6 | 1623 | td->sig = ECHILD; |
2e1df07d JA |
1624 | td_set_runstate(td, TD_REAPED); |
1625 | goto reaped; | |
1626 | } | |
1627 | perror("waitpid"); | |
1628 | } else if (ret == td->pid) { | |
1629 | if (WIFSIGNALED(status)) { | |
1630 | int sig = WTERMSIG(status); | |
1631 | ||
36d80bc7 | 1632 | if (sig != SIGTERM && sig != SIGUSR2) |
2e1df07d JA |
1633 | log_err("fio: pid=%d, got signal=%d\n", |
1634 | (int) td->pid, sig); | |
a5e371a6 | 1635 | td->sig = sig; |
2e1df07d JA |
1636 | td_set_runstate(td, TD_REAPED); |
1637 | goto reaped; | |
1638 | } | |
1639 | if (WIFEXITED(status)) { | |
1640 | if (WEXITSTATUS(status) && !td->error) | |
1641 | td->error = WEXITSTATUS(status); | |
1642 | ||
1643 | td_set_runstate(td, TD_REAPED); | |
1644 | goto reaped; | |
1645 | } | |
1646 | } | |
1647 | ||
1648 | /* | |
1649 | * thread is not dead, continue | |
1650 | */ | |
1651 | pending++; | |
1652 | continue; | |
1653 | reaped: | |
1654 | (*nr_running)--; | |
342f4be4 JA |
1655 | (*m_rate) -= ddir_rw_sum(td->o.ratemin); |
1656 | (*t_rate) -= ddir_rw_sum(td->o.rate); | |
2e1df07d JA |
1657 | if (!td->pid) |
1658 | pending--; | |
1659 | ||
1660 | if (td->error) | |
1661 | exit_value++; | |
1662 | ||
1663 | done_secs += mtime_since_now(&td->epoch) / 1000; | |
4a88752a | 1664 | profile_td_exit(td); |
2e1df07d JA |
1665 | } |
1666 | ||
1667 | if (*nr_running == cputhreads && !pending && realthreads) | |
1668 | fio_terminate_threads(TERMINATE_ALL); | |
1669 | } | |
1670 | ||
06464907 JA |
1671 | static void do_usleep(unsigned int usecs) |
1672 | { | |
1673 | check_for_running_stats(); | |
1674 | usleep(usecs); | |
1675 | } | |
1676 | ||
2e1df07d JA |
1677 | /* |
1678 | * Main function for kicking off and reaping jobs, as needed. | |
1679 | */ | |
1680 | static void run_threads(void) | |
1681 | { | |
1682 | struct thread_data *td; | |
2e1df07d | 1683 | unsigned int i, todo, nr_running, m_rate, t_rate, nr_started; |
0de5b26f | 1684 | uint64_t spent; |
2e1df07d | 1685 | |
2e1df07d JA |
1686 | if (fio_gtod_offload && fio_start_gtod_thread()) |
1687 | return; | |
334185e9 | 1688 | |
f2a2ce0e | 1689 | fio_idle_prof_init(); |
2e1df07d JA |
1690 | |
1691 | set_sig_handlers(); | |
1692 | ||
3a5f6bde JA |
1693 | nr_thread = nr_process = 0; |
1694 | for_each_td(td, i) { | |
1695 | if (td->o.use_thread) | |
1696 | nr_thread++; | |
1697 | else | |
1698 | nr_process++; | |
1699 | } | |
1700 | ||
f3afa57e | 1701 | if (output_format == FIO_OUTPUT_NORMAL) { |
2e1df07d JA |
1702 | log_info("Starting "); |
1703 | if (nr_thread) | |
1704 | log_info("%d thread%s", nr_thread, | |
1705 | nr_thread > 1 ? "s" : ""); | |
1706 | if (nr_process) { | |
1707 | if (nr_thread) | |
1708 | log_info(" and "); | |
1709 | log_info("%d process%s", nr_process, | |
1710 | nr_process > 1 ? "es" : ""); | |
1711 | } | |
1712 | log_info("\n"); | |
1713 | fflush(stdout); | |
1714 | } | |
1715 | ||
1716 | todo = thread_number; | |
1717 | nr_running = 0; | |
1718 | nr_started = 0; | |
1719 | m_rate = t_rate = 0; | |
1720 | ||
1721 | for_each_td(td, i) { | |
1722 | print_status_init(td->thread_number - 1); | |
1723 | ||
1724 | if (!td->o.create_serialize) | |
1725 | continue; | |
1726 | ||
1727 | /* | |
1728 | * do file setup here so it happens sequentially, | |
1729 | * we don't want X number of threads getting their | |
1730 | * client data interspersed on disk | |
1731 | */ | |
1732 | if (setup_files(td)) { | |
1733 | exit_value++; | |
1734 | if (td->error) | |
1735 | log_err("fio: pid=%d, err=%d/%s\n", | |
1736 | (int) td->pid, td->error, td->verror); | |
1737 | td_set_runstate(td, TD_REAPED); | |
1738 | todo--; | |
1739 | } else { | |
1740 | struct fio_file *f; | |
1741 | unsigned int j; | |
1742 | ||
1743 | /* | |
1744 | * for sharing to work, each job must always open | |
1745 | * its own files. so close them, if we opened them | |
1746 | * for creation | |
1747 | */ | |
1748 | for_each_file(td, f, j) { | |
1749 | if (fio_file_open(f)) | |
1750 | td_io_close_file(td, f); | |
1751 | } | |
1752 | } | |
1753 | } | |
1754 | ||
f2a2ce0e HL |
1755 | /* start idle threads before io threads start to run */ |
1756 | fio_idle_prof_start(); | |
1757 | ||
2e1df07d JA |
1758 | set_genesis_time(); |
1759 | ||
1760 | while (todo) { | |
1761 | struct thread_data *map[REAL_MAX_JOBS]; | |
1762 | struct timeval this_start; | |
1763 | int this_jobs = 0, left; | |
1764 | ||
1765 | /* | |
1766 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1767 | */ | |
1768 | for_each_td(td, i) { | |
1769 | if (td->runstate != TD_NOT_CREATED) | |
1770 | continue; | |
1771 | ||
1772 | /* | |
1773 | * never got a chance to start, killed by other | |
1774 | * thread for some reason | |
1775 | */ | |
1776 | if (td->terminate) { | |
1777 | todo--; | |
1778 | continue; | |
1779 | } | |
1780 | ||
1781 | if (td->o.start_delay) { | |
0de5b26f | 1782 | spent = utime_since_genesis(); |
2e1df07d | 1783 | |
74454ce4 | 1784 | if (td->o.start_delay > spent) |
2e1df07d JA |
1785 | continue; |
1786 | } | |
1787 | ||
1788 | if (td->o.stonewall && (nr_started || nr_running)) { | |
1789 | dprint(FD_PROCESS, "%s: stonewall wait\n", | |
1790 | td->o.name); | |
1791 | break; | |
1792 | } | |
1793 | ||
1794 | init_disk_util(td); | |
1795 | ||
c97f1ad6 JA |
1796 | td->rusage_sem = fio_mutex_init(FIO_MUTEX_LOCKED); |
1797 | td->update_rusage = 0; | |
1798 | ||
2e1df07d JA |
1799 | /* |
1800 | * Set state to created. Thread will transition | |
1801 | * to TD_INITIALIZED when it's done setting up. | |
1802 | */ | |
1803 | td_set_runstate(td, TD_CREATED); | |
1804 | map[this_jobs++] = td; | |
1805 | nr_started++; | |
1806 | ||
1807 | if (td->o.use_thread) { | |
1808 | int ret; | |
1809 | ||
1810 | dprint(FD_PROCESS, "will pthread_create\n"); | |
1811 | ret = pthread_create(&td->thread, NULL, | |
1812 | thread_main, td); | |
1813 | if (ret) { | |
1814 | log_err("pthread_create: %s\n", | |
1815 | strerror(ret)); | |
1816 | nr_started--; | |
1817 | break; | |
1818 | } | |
1819 | ret = pthread_detach(td->thread); | |
1820 | if (ret) | |
1821 | log_err("pthread_detach: %s", | |
1822 | strerror(ret)); | |
1823 | } else { | |
1824 | pid_t pid; | |
1825 | dprint(FD_PROCESS, "will fork\n"); | |
1826 | pid = fork(); | |
1827 | if (!pid) { | |
1828 | int ret = fork_main(shm_id, i); | |
1829 | ||
1830 | _exit(ret); | |
1831 | } else if (i == fio_debug_jobno) | |
1832 | *fio_debug_jobp = pid; | |
1833 | } | |
1834 | dprint(FD_MUTEX, "wait on startup_mutex\n"); | |
1835 | if (fio_mutex_down_timeout(startup_mutex, 10)) { | |
1836 | log_err("fio: job startup hung? exiting.\n"); | |
1837 | fio_terminate_threads(TERMINATE_ALL); | |
1838 | fio_abort = 1; | |
1839 | nr_started--; | |
1840 | break; | |
1841 | } | |
1842 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); | |
1843 | } | |
1844 | ||
1845 | /* | |
1846 | * Wait for the started threads to transition to | |
1847 | * TD_INITIALIZED. | |
1848 | */ | |
1849 | fio_gettime(&this_start, NULL); | |
1850 | left = this_jobs; | |
1851 | while (left && !fio_abort) { | |
1852 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) | |
1853 | break; | |
1854 | ||
06464907 | 1855 | do_usleep(100000); |
2e1df07d JA |
1856 | |
1857 | for (i = 0; i < this_jobs; i++) { | |
1858 | td = map[i]; | |
1859 | if (!td) | |
1860 | continue; | |
1861 | if (td->runstate == TD_INITIALIZED) { | |
1862 | map[i] = NULL; | |
1863 | left--; | |
1864 | } else if (td->runstate >= TD_EXITED) { | |
1865 | map[i] = NULL; | |
1866 | left--; | |
1867 | todo--; | |
1868 | nr_running++; /* work-around... */ | |
1869 | } | |
1870 | } | |
1871 | } | |
1872 | ||
1873 | if (left) { | |
4e87c37a JA |
1874 | log_err("fio: %d job%s failed to start\n", left, |
1875 | left > 1 ? "s" : ""); | |
2e1df07d JA |
1876 | for (i = 0; i < this_jobs; i++) { |
1877 | td = map[i]; | |
1878 | if (!td) | |
1879 | continue; | |
1880 | kill(td->pid, SIGTERM); | |
1881 | } | |
1882 | break; | |
1883 | } | |
1884 | ||
1885 | /* | |
1886 | * start created threads (TD_INITIALIZED -> TD_RUNNING). | |
1887 | */ | |
1888 | for_each_td(td, i) { | |
1889 | if (td->runstate != TD_INITIALIZED) | |
1890 | continue; | |
1891 | ||
1892 | if (in_ramp_time(td)) | |
1893 | td_set_runstate(td, TD_RAMP); | |
1894 | else | |
1895 | td_set_runstate(td, TD_RUNNING); | |
1896 | nr_running++; | |
1897 | nr_started--; | |
342f4be4 JA |
1898 | m_rate += ddir_rw_sum(td->o.ratemin); |
1899 | t_rate += ddir_rw_sum(td->o.rate); | |
2e1df07d JA |
1900 | todo--; |
1901 | fio_mutex_up(td->mutex); | |
1902 | } | |
1903 | ||
1904 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1905 | ||
122c7725 | 1906 | if (todo) |
06464907 | 1907 | do_usleep(100000); |
2e1df07d JA |
1908 | } |
1909 | ||
1910 | while (nr_running) { | |
1911 | reap_threads(&nr_running, &t_rate, &m_rate); | |
06464907 | 1912 | do_usleep(10000); |
2e1df07d JA |
1913 | } |
1914 | ||
f2a2ce0e HL |
1915 | fio_idle_prof_stop(); |
1916 | ||
2e1df07d | 1917 | update_io_ticks(); |
2e1df07d JA |
1918 | } |
1919 | ||
9ec7779f JA |
1920 | void wait_for_disk_thread_exit(void) |
1921 | { | |
1922 | fio_mutex_down(disk_thread_mutex); | |
1923 | } | |
1924 | ||
27357187 JA |
1925 | static void free_disk_util(void) |
1926 | { | |
1927 | disk_util_start_exit(); | |
1928 | wait_for_disk_thread_exit(); | |
1929 | disk_util_prune_entries(); | |
1930 | } | |
1931 | ||
2e1df07d JA |
1932 | static void *disk_thread_main(void *data) |
1933 | { | |
9ec7779f JA |
1934 | int ret = 0; |
1935 | ||
2e1df07d JA |
1936 | fio_mutex_up(startup_mutex); |
1937 | ||
9ec7779f | 1938 | while (threads && !ret) { |
2e1df07d JA |
1939 | usleep(DISK_UTIL_MSEC * 1000); |
1940 | if (!threads) | |
1941 | break; | |
9ec7779f | 1942 | ret = update_io_ticks(); |
2e1df07d JA |
1943 | |
1944 | if (!is_backend) | |
1945 | print_thread_status(); | |
1946 | } | |
1947 | ||
9ec7779f | 1948 | fio_mutex_up(disk_thread_mutex); |
2e1df07d JA |
1949 | return NULL; |
1950 | } | |
1951 | ||
1952 | static int create_disk_util_thread(void) | |
1953 | { | |
1954 | int ret; | |
1955 | ||
9ec7779f JA |
1956 | setup_disk_util(); |
1957 | ||
521da527 | 1958 | disk_thread_mutex = fio_mutex_init(FIO_MUTEX_LOCKED); |
9ec7779f | 1959 | |
2e1df07d JA |
1960 | ret = pthread_create(&disk_util_thread, NULL, disk_thread_main, NULL); |
1961 | if (ret) { | |
9ec7779f | 1962 | fio_mutex_remove(disk_thread_mutex); |
2e1df07d JA |
1963 | log_err("Can't create disk util thread: %s\n", strerror(ret)); |
1964 | return 1; | |
1965 | } | |
1966 | ||
1967 | ret = pthread_detach(disk_util_thread); | |
1968 | if (ret) { | |
9ec7779f | 1969 | fio_mutex_remove(disk_thread_mutex); |
2e1df07d JA |
1970 | log_err("Can't detatch disk util thread: %s\n", strerror(ret)); |
1971 | return 1; | |
1972 | } | |
1973 | ||
1974 | dprint(FD_MUTEX, "wait on startup_mutex\n"); | |
1975 | fio_mutex_down(startup_mutex); | |
1976 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); | |
1977 | return 0; | |
1978 | } | |
1979 | ||
2e1df07d JA |
1980 | int fio_backend(void) |
1981 | { | |
1982 | struct thread_data *td; | |
1983 | int i; | |
1984 | ||
1985 | if (exec_profile) { | |
1986 | if (load_profile(exec_profile)) | |
1987 | return 1; | |
1988 | free(exec_profile); | |
1989 | exec_profile = NULL; | |
1990 | } | |
1991 | if (!thread_number) | |
1992 | return 0; | |
1993 | ||
1994 | if (write_bw_log) { | |
5a812f9b JA |
1995 | setup_log(&agg_io_log[DDIR_READ], 0, IO_LOG_TYPE_BW); |
1996 | setup_log(&agg_io_log[DDIR_WRITE], 0, IO_LOG_TYPE_BW); | |
1997 | setup_log(&agg_io_log[DDIR_TRIM], 0, IO_LOG_TYPE_BW); | |
2e1df07d JA |
1998 | } |
1999 | ||
521da527 | 2000 | startup_mutex = fio_mutex_init(FIO_MUTEX_LOCKED); |
2e1df07d JA |
2001 | if (startup_mutex == NULL) |
2002 | return 1; | |
2e1df07d JA |
2003 | |
2004 | set_genesis_time(); | |
cef9175e | 2005 | stat_init(); |
2e1df07d JA |
2006 | create_disk_util_thread(); |
2007 | ||
2008 | cgroup_list = smalloc(sizeof(*cgroup_list)); | |
2009 | INIT_FLIST_HEAD(cgroup_list); | |
2010 | ||
2011 | run_threads(); | |
2012 | ||
2013 | if (!fio_abort) { | |
2014 | show_run_stats(); | |
2015 | if (write_bw_log) { | |
2016 | __finish_log(agg_io_log[DDIR_READ], "agg-read_bw.log"); | |
2017 | __finish_log(agg_io_log[DDIR_WRITE], | |
2018 | "agg-write_bw.log"); | |
6eaf09d6 SL |
2019 | __finish_log(agg_io_log[DDIR_TRIM], |
2020 | "agg-write_bw.log"); | |
2e1df07d JA |
2021 | } |
2022 | } | |
2023 | ||
2024 | for_each_td(td, i) | |
2025 | fio_options_free(td); | |
2026 | ||
a462baef | 2027 | free_disk_util(); |
2e1df07d JA |
2028 | cgroup_kill(cgroup_list); |
2029 | sfree(cgroup_list); | |
2030 | sfree(cgroup_mnt); | |
2031 | ||
2032 | fio_mutex_remove(startup_mutex); | |
9ec7779f | 2033 | fio_mutex_remove(disk_thread_mutex); |
cef9175e | 2034 | stat_exit(); |
2e1df07d JA |
2035 | return exit_value; |
2036 | } |