Commit | Line | Data |
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2e1df07d JA |
1 | /* |
2 | * fio - the flexible io tester | |
3 | * | |
4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> | |
5 | * Copyright (C) 2006-2012 Jens Axboe <axboe@kernel.dk> | |
6 | * | |
7 | * The license below covers all files distributed with fio unless otherwise | |
8 | * noted in the file itself. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | * | |
23 | */ | |
24 | #include <unistd.h> | |
25 | #include <fcntl.h> | |
26 | #include <string.h> | |
27 | #include <limits.h> | |
28 | #include <signal.h> | |
29 | #include <time.h> | |
30 | #include <locale.h> | |
31 | #include <assert.h> | |
32 | #include <time.h> | |
e43606c2 | 33 | #include <inttypes.h> |
2e1df07d JA |
34 | #include <sys/stat.h> |
35 | #include <sys/wait.h> | |
36 | #include <sys/ipc.h> | |
2e1df07d | 37 | #include <sys/mman.h> |
ff6bb260 | 38 | #include <math.h> |
2e1df07d JA |
39 | |
40 | #include "fio.h" | |
a5e0ee11 O |
41 | #ifndef FIO_NO_HAVE_SHM_H |
42 | #include <sys/shm.h> | |
43 | #endif | |
2e1df07d JA |
44 | #include "hash.h" |
45 | #include "smalloc.h" | |
46 | #include "verify.h" | |
47 | #include "trim.h" | |
48 | #include "diskutil.h" | |
49 | #include "cgroup.h" | |
50 | #include "profile.h" | |
51 | #include "lib/rand.h" | |
f7690c4a | 52 | #include "lib/memalign.h" |
2e1df07d | 53 | #include "server.h" |
44404c5a | 54 | #include "lib/getrusage.h" |
f2a2ce0e | 55 | #include "idletime.h" |
002fe734 | 56 | #include "err.h" |
78d55e72 | 57 | #include "lib/tp.h" |
a9da8ab2 | 58 | #include "workqueue.h" |
e81ecca3 | 59 | #include "lib/mountcheck.h" |
2e1df07d | 60 | |
5ddc6707 JA |
61 | static pthread_t helper_thread; |
62 | static pthread_mutex_t helper_lock; | |
63 | pthread_cond_t helper_cond; | |
64 | int helper_do_stat = 0; | |
8aab824f | 65 | |
2e1df07d | 66 | static struct fio_mutex *startup_mutex; |
2e1df07d JA |
67 | static struct flist_head *cgroup_list; |
68 | static char *cgroup_mnt; | |
69 | static int exit_value; | |
70 | static volatile int fio_abort; | |
3a5f6bde JA |
71 | static unsigned int nr_process = 0; |
72 | static unsigned int nr_thread = 0; | |
2e1df07d | 73 | |
6eaf09d6 | 74 | struct io_log *agg_io_log[DDIR_RWDIR_CNT]; |
2e1df07d | 75 | |
a3efc919 JA |
76 | int groupid = 0; |
77 | unsigned int thread_number = 0; | |
108fea77 | 78 | unsigned int stat_number = 0; |
a3efc919 JA |
79 | int shm_id = 0; |
80 | int temp_stall_ts; | |
81 | unsigned long done_secs = 0; | |
5ddc6707 | 82 | volatile int helper_exit = 0; |
a3efc919 | 83 | |
2e1df07d | 84 | #define PAGE_ALIGN(buf) \ |
e43606c2 | 85 | (char *) (((uintptr_t) (buf) + page_mask) & ~page_mask) |
2e1df07d JA |
86 | |
87 | #define JOB_START_TIMEOUT (5 * 1000) | |
88 | ||
89 | static void sig_int(int sig) | |
90 | { | |
91 | if (threads) { | |
92 | if (is_backend) | |
93 | fio_server_got_signal(sig); | |
94 | else { | |
95 | log_info("\nfio: terminating on signal %d\n", sig); | |
e411c301 | 96 | log_info_flush(); |
2e1df07d JA |
97 | exit_value = 128; |
98 | } | |
99 | ||
100 | fio_terminate_threads(TERMINATE_ALL); | |
101 | } | |
102 | } | |
103 | ||
d2235e56 | 104 | void sig_show_status(int sig) |
4c6d91e8 JA |
105 | { |
106 | show_running_run_stats(); | |
107 | } | |
108 | ||
2e1df07d JA |
109 | static void set_sig_handlers(void) |
110 | { | |
111 | struct sigaction act; | |
112 | ||
113 | memset(&act, 0, sizeof(act)); | |
114 | act.sa_handler = sig_int; | |
115 | act.sa_flags = SA_RESTART; | |
116 | sigaction(SIGINT, &act, NULL); | |
117 | ||
118 | memset(&act, 0, sizeof(act)); | |
119 | act.sa_handler = sig_int; | |
120 | act.sa_flags = SA_RESTART; | |
121 | sigaction(SIGTERM, &act, NULL); | |
122 | ||
2f694507 BC |
123 | /* Windows uses SIGBREAK as a quit signal from other applications */ |
124 | #ifdef WIN32 | |
125 | memset(&act, 0, sizeof(act)); | |
126 | act.sa_handler = sig_int; | |
127 | act.sa_flags = SA_RESTART; | |
128 | sigaction(SIGBREAK, &act, NULL); | |
129 | #endif | |
130 | ||
4c6d91e8 JA |
131 | memset(&act, 0, sizeof(act)); |
132 | act.sa_handler = sig_show_status; | |
133 | act.sa_flags = SA_RESTART; | |
134 | sigaction(SIGUSR1, &act, NULL); | |
135 | ||
2e1df07d JA |
136 | if (is_backend) { |
137 | memset(&act, 0, sizeof(act)); | |
138 | act.sa_handler = sig_int; | |
139 | act.sa_flags = SA_RESTART; | |
140 | sigaction(SIGPIPE, &act, NULL); | |
141 | } | |
142 | } | |
143 | ||
144 | /* | |
145 | * Check if we are above the minimum rate given. | |
146 | */ | |
e39c0676 JA |
147 | static bool __check_min_rate(struct thread_data *td, struct timeval *now, |
148 | enum fio_ddir ddir) | |
2e1df07d JA |
149 | { |
150 | unsigned long long bytes = 0; | |
151 | unsigned long iops = 0; | |
152 | unsigned long spent; | |
153 | unsigned long rate; | |
154 | unsigned int ratemin = 0; | |
155 | unsigned int rate_iops = 0; | |
156 | unsigned int rate_iops_min = 0; | |
157 | ||
158 | assert(ddir_rw(ddir)); | |
159 | ||
160 | if (!td->o.ratemin[ddir] && !td->o.rate_iops_min[ddir]) | |
e39c0676 | 161 | return false; |
2e1df07d JA |
162 | |
163 | /* | |
164 | * allow a 2 second settle period in the beginning | |
165 | */ | |
166 | if (mtime_since(&td->start, now) < 2000) | |
e39c0676 | 167 | return false; |
2e1df07d JA |
168 | |
169 | iops += td->this_io_blocks[ddir]; | |
170 | bytes += td->this_io_bytes[ddir]; | |
171 | ratemin += td->o.ratemin[ddir]; | |
172 | rate_iops += td->o.rate_iops[ddir]; | |
173 | rate_iops_min += td->o.rate_iops_min[ddir]; | |
174 | ||
175 | /* | |
176 | * if rate blocks is set, sample is running | |
177 | */ | |
178 | if (td->rate_bytes[ddir] || td->rate_blocks[ddir]) { | |
179 | spent = mtime_since(&td->lastrate[ddir], now); | |
180 | if (spent < td->o.ratecycle) | |
e39c0676 | 181 | return false; |
2e1df07d | 182 | |
20e37e4a | 183 | if (td->o.rate[ddir] || td->o.ratemin[ddir]) { |
2e1df07d JA |
184 | /* |
185 | * check bandwidth specified rate | |
186 | */ | |
187 | if (bytes < td->rate_bytes[ddir]) { | |
188 | log_err("%s: min rate %u not met\n", td->o.name, | |
189 | ratemin); | |
e39c0676 | 190 | return true; |
2e1df07d | 191 | } else { |
49cba9b3 JA |
192 | if (spent) |
193 | rate = ((bytes - td->rate_bytes[ddir]) * 1000) / spent; | |
194 | else | |
195 | rate = 0; | |
196 | ||
2e1df07d JA |
197 | if (rate < ratemin || |
198 | bytes < td->rate_bytes[ddir]) { | |
199 | log_err("%s: min rate %u not met, got" | |
200 | " %luKB/sec\n", td->o.name, | |
201 | ratemin, rate); | |
e39c0676 | 202 | return true; |
2e1df07d JA |
203 | } |
204 | } | |
205 | } else { | |
206 | /* | |
207 | * checks iops specified rate | |
208 | */ | |
209 | if (iops < rate_iops) { | |
210 | log_err("%s: min iops rate %u not met\n", | |
211 | td->o.name, rate_iops); | |
e39c0676 | 212 | return true; |
2e1df07d | 213 | } else { |
4c707a3b JA |
214 | if (spent) |
215 | rate = ((iops - td->rate_blocks[ddir]) * 1000) / spent; | |
216 | else | |
217 | rate = 0; | |
218 | ||
2e1df07d JA |
219 | if (rate < rate_iops_min || |
220 | iops < td->rate_blocks[ddir]) { | |
221 | log_err("%s: min iops rate %u not met," | |
222 | " got %lu\n", td->o.name, | |
223 | rate_iops_min, rate); | |
e39c0676 | 224 | return true; |
2e1df07d JA |
225 | } |
226 | } | |
227 | } | |
228 | } | |
229 | ||
230 | td->rate_bytes[ddir] = bytes; | |
231 | td->rate_blocks[ddir] = iops; | |
232 | memcpy(&td->lastrate[ddir], now, sizeof(*now)); | |
e39c0676 | 233 | return false; |
2e1df07d JA |
234 | } |
235 | ||
e39c0676 | 236 | static bool check_min_rate(struct thread_data *td, struct timeval *now) |
2e1df07d | 237 | { |
e39c0676 | 238 | bool ret = false; |
2e1df07d | 239 | |
55312f9f | 240 | if (td->bytes_done[DDIR_READ]) |
6eaf09d6 | 241 | ret |= __check_min_rate(td, now, DDIR_READ); |
55312f9f | 242 | if (td->bytes_done[DDIR_WRITE]) |
6eaf09d6 | 243 | ret |= __check_min_rate(td, now, DDIR_WRITE); |
55312f9f | 244 | if (td->bytes_done[DDIR_TRIM]) |
6eaf09d6 | 245 | ret |= __check_min_rate(td, now, DDIR_TRIM); |
2e1df07d JA |
246 | |
247 | return ret; | |
248 | } | |
249 | ||
250 | /* | |
251 | * When job exits, we can cancel the in-flight IO if we are using async | |
252 | * io. Attempt to do so. | |
253 | */ | |
254 | static void cleanup_pending_aio(struct thread_data *td) | |
255 | { | |
2e1df07d JA |
256 | int r; |
257 | ||
258 | /* | |
259 | * get immediately available events, if any | |
260 | */ | |
55312f9f | 261 | r = io_u_queued_complete(td, 0); |
2e1df07d JA |
262 | if (r < 0) |
263 | return; | |
264 | ||
265 | /* | |
266 | * now cancel remaining active events | |
267 | */ | |
268 | if (td->io_ops->cancel) { | |
2ae0b204 JA |
269 | struct io_u *io_u; |
270 | int i; | |
2e1df07d | 271 | |
2ae0b204 JA |
272 | io_u_qiter(&td->io_u_all, io_u, i) { |
273 | if (io_u->flags & IO_U_F_FLIGHT) { | |
2e1df07d JA |
274 | r = td->io_ops->cancel(td, io_u); |
275 | if (!r) | |
276 | put_io_u(td, io_u); | |
277 | } | |
278 | } | |
279 | } | |
280 | ||
281 | if (td->cur_depth) | |
55312f9f | 282 | r = io_u_queued_complete(td, td->cur_depth); |
2e1df07d JA |
283 | } |
284 | ||
285 | /* | |
286 | * Helper to handle the final sync of a file. Works just like the normal | |
287 | * io path, just does everything sync. | |
288 | */ | |
e39c0676 | 289 | static bool fio_io_sync(struct thread_data *td, struct fio_file *f) |
2e1df07d JA |
290 | { |
291 | struct io_u *io_u = __get_io_u(td); | |
292 | int ret; | |
293 | ||
294 | if (!io_u) | |
e39c0676 | 295 | return true; |
2e1df07d JA |
296 | |
297 | io_u->ddir = DDIR_SYNC; | |
298 | io_u->file = f; | |
299 | ||
300 | if (td_io_prep(td, io_u)) { | |
301 | put_io_u(td, io_u); | |
e39c0676 | 302 | return true; |
2e1df07d JA |
303 | } |
304 | ||
305 | requeue: | |
306 | ret = td_io_queue(td, io_u); | |
307 | if (ret < 0) { | |
308 | td_verror(td, io_u->error, "td_io_queue"); | |
309 | put_io_u(td, io_u); | |
e39c0676 | 310 | return true; |
2e1df07d | 311 | } else if (ret == FIO_Q_QUEUED) { |
55312f9f | 312 | if (io_u_queued_complete(td, 1) < 0) |
e39c0676 | 313 | return true; |
2e1df07d JA |
314 | } else if (ret == FIO_Q_COMPLETED) { |
315 | if (io_u->error) { | |
316 | td_verror(td, io_u->error, "td_io_queue"); | |
e39c0676 | 317 | return true; |
2e1df07d JA |
318 | } |
319 | ||
55312f9f | 320 | if (io_u_sync_complete(td, io_u) < 0) |
e39c0676 | 321 | return true; |
2e1df07d JA |
322 | } else if (ret == FIO_Q_BUSY) { |
323 | if (td_io_commit(td)) | |
e39c0676 | 324 | return true; |
2e1df07d JA |
325 | goto requeue; |
326 | } | |
327 | ||
e39c0676 | 328 | return false; |
2e1df07d | 329 | } |
a3efc919 | 330 | |
61ee0f86 JA |
331 | static int fio_file_fsync(struct thread_data *td, struct fio_file *f) |
332 | { | |
333 | int ret; | |
334 | ||
335 | if (fio_file_open(f)) | |
336 | return fio_io_sync(td, f); | |
337 | ||
338 | if (td_io_open_file(td, f)) | |
339 | return 1; | |
340 | ||
341 | ret = fio_io_sync(td, f); | |
342 | td_io_close_file(td, f); | |
343 | return ret; | |
344 | } | |
345 | ||
2e1df07d JA |
346 | static inline void __update_tv_cache(struct thread_data *td) |
347 | { | |
348 | fio_gettime(&td->tv_cache, NULL); | |
349 | } | |
350 | ||
351 | static inline void update_tv_cache(struct thread_data *td) | |
352 | { | |
353 | if ((++td->tv_cache_nr & td->tv_cache_mask) == td->tv_cache_mask) | |
354 | __update_tv_cache(td); | |
355 | } | |
356 | ||
e39c0676 | 357 | static inline bool runtime_exceeded(struct thread_data *td, struct timeval *t) |
2e1df07d JA |
358 | { |
359 | if (in_ramp_time(td)) | |
e39c0676 | 360 | return false; |
2e1df07d | 361 | if (!td->o.timeout) |
e39c0676 | 362 | return false; |
0de5b26f | 363 | if (utime_since(&td->epoch, t) >= td->o.timeout) |
e39c0676 | 364 | return true; |
2e1df07d | 365 | |
e39c0676 | 366 | return false; |
2e1df07d JA |
367 | } |
368 | ||
95603b74 BF |
369 | /* |
370 | * We need to update the runtime consistently in ms, but keep a running | |
371 | * tally of the current elapsed time in microseconds for sub millisecond | |
372 | * updates. | |
373 | */ | |
374 | static inline void update_runtime(struct thread_data *td, | |
375 | unsigned long long *elapsed_us, | |
376 | const enum fio_ddir ddir) | |
377 | { | |
d5c8ea29 JA |
378 | if (ddir == DDIR_WRITE && td_write(td) && td->o.verify_only) |
379 | return; | |
380 | ||
95603b74 BF |
381 | td->ts.runtime[ddir] -= (elapsed_us[ddir] + 999) / 1000; |
382 | elapsed_us[ddir] += utime_since_now(&td->start); | |
383 | td->ts.runtime[ddir] += (elapsed_us[ddir] + 999) / 1000; | |
384 | } | |
385 | ||
e39c0676 JA |
386 | static bool break_on_this_error(struct thread_data *td, enum fio_ddir ddir, |
387 | int *retptr) | |
2e1df07d JA |
388 | { |
389 | int ret = *retptr; | |
390 | ||
391 | if (ret < 0 || td->error) { | |
8b28bd41 DM |
392 | int err = td->error; |
393 | enum error_type_bit eb; | |
2e1df07d JA |
394 | |
395 | if (ret < 0) | |
396 | err = -ret; | |
2e1df07d | 397 | |
8b28bd41 DM |
398 | eb = td_error_type(ddir, err); |
399 | if (!(td->o.continue_on_error & (1 << eb))) | |
e39c0676 | 400 | return true; |
2e1df07d | 401 | |
8b28bd41 | 402 | if (td_non_fatal_error(td, eb, err)) { |
2e1df07d JA |
403 | /* |
404 | * Continue with the I/Os in case of | |
405 | * a non fatal error. | |
406 | */ | |
407 | update_error_count(td, err); | |
408 | td_clear_error(td); | |
409 | *retptr = 0; | |
e39c0676 | 410 | return false; |
2e1df07d JA |
411 | } else if (td->o.fill_device && err == ENOSPC) { |
412 | /* | |
413 | * We expect to hit this error if | |
414 | * fill_device option is set. | |
415 | */ | |
416 | td_clear_error(td); | |
ebea2133 | 417 | fio_mark_td_terminate(td); |
e39c0676 | 418 | return true; |
2e1df07d JA |
419 | } else { |
420 | /* | |
421 | * Stop the I/O in case of a fatal | |
422 | * error. | |
423 | */ | |
424 | update_error_count(td, err); | |
e39c0676 | 425 | return true; |
2e1df07d JA |
426 | } |
427 | } | |
428 | ||
e39c0676 | 429 | return false; |
2e1df07d JA |
430 | } |
431 | ||
c97f1ad6 JA |
432 | static void check_update_rusage(struct thread_data *td) |
433 | { | |
434 | if (td->update_rusage) { | |
435 | td->update_rusage = 0; | |
436 | update_rusage_stat(td); | |
437 | fio_mutex_up(td->rusage_sem); | |
438 | } | |
439 | } | |
440 | ||
55312f9f | 441 | static int wait_for_completions(struct thread_data *td, struct timeval *time) |
69fea81e JA |
442 | { |
443 | const int full = queue_full(td); | |
444 | int min_evts = 0; | |
445 | int ret; | |
446 | ||
447 | /* | |
448 | * if the queue is full, we MUST reap at least 1 event | |
449 | */ | |
82407585 | 450 | min_evts = min(td->o.iodepth_batch_complete_min, td->cur_depth); |
4b157ac6 | 451 | if ((full && !min_evts) || !td->o.iodepth_batch_complete_min) |
69fea81e JA |
452 | min_evts = 1; |
453 | ||
66b6c5ef | 454 | if (time && (__should_check_rate(td, DDIR_READ) || |
69fea81e JA |
455 | __should_check_rate(td, DDIR_WRITE) || |
456 | __should_check_rate(td, DDIR_TRIM))) | |
457 | fio_gettime(time, NULL); | |
458 | ||
459 | do { | |
55312f9f | 460 | ret = io_u_queued_complete(td, min_evts); |
69fea81e JA |
461 | if (ret < 0) |
462 | break; | |
463 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
464 | ||
465 | return ret; | |
466 | } | |
467 | ||
e9d512d8 JA |
468 | int io_queue_event(struct thread_data *td, struct io_u *io_u, int *ret, |
469 | enum fio_ddir ddir, uint64_t *bytes_issued, int from_verify, | |
470 | struct timeval *comp_time) | |
471 | { | |
472 | int ret2; | |
473 | ||
474 | switch (*ret) { | |
475 | case FIO_Q_COMPLETED: | |
476 | if (io_u->error) { | |
477 | *ret = -io_u->error; | |
478 | clear_io_u(td, io_u); | |
479 | } else if (io_u->resid) { | |
480 | int bytes = io_u->xfer_buflen - io_u->resid; | |
481 | struct fio_file *f = io_u->file; | |
482 | ||
483 | if (bytes_issued) | |
484 | *bytes_issued += bytes; | |
485 | ||
486 | if (!from_verify) | |
487 | trim_io_piece(td, io_u); | |
488 | ||
489 | /* | |
490 | * zero read, fail | |
491 | */ | |
492 | if (!bytes) { | |
493 | if (!from_verify) | |
494 | unlog_io_piece(td, io_u); | |
495 | td_verror(td, EIO, "full resid"); | |
496 | put_io_u(td, io_u); | |
497 | break; | |
498 | } | |
499 | ||
500 | io_u->xfer_buflen = io_u->resid; | |
501 | io_u->xfer_buf += bytes; | |
502 | io_u->offset += bytes; | |
503 | ||
504 | if (ddir_rw(io_u->ddir)) | |
505 | td->ts.short_io_u[io_u->ddir]++; | |
506 | ||
507 | f = io_u->file; | |
508 | if (io_u->offset == f->real_file_size) | |
509 | goto sync_done; | |
510 | ||
511 | requeue_io_u(td, &io_u); | |
512 | } else { | |
513 | sync_done: | |
514 | if (comp_time && (__should_check_rate(td, DDIR_READ) || | |
515 | __should_check_rate(td, DDIR_WRITE) || | |
516 | __should_check_rate(td, DDIR_TRIM))) | |
517 | fio_gettime(comp_time, NULL); | |
518 | ||
519 | *ret = io_u_sync_complete(td, io_u); | |
520 | if (*ret < 0) | |
521 | break; | |
522 | } | |
523 | return 0; | |
524 | case FIO_Q_QUEUED: | |
525 | /* | |
526 | * if the engine doesn't have a commit hook, | |
527 | * the io_u is really queued. if it does have such | |
528 | * a hook, it has to call io_u_queued() itself. | |
529 | */ | |
530 | if (td->io_ops->commit == NULL) | |
531 | io_u_queued(td, io_u); | |
532 | if (bytes_issued) | |
533 | *bytes_issued += io_u->xfer_buflen; | |
534 | break; | |
535 | case FIO_Q_BUSY: | |
536 | if (!from_verify) | |
537 | unlog_io_piece(td, io_u); | |
538 | requeue_io_u(td, &io_u); | |
539 | ret2 = td_io_commit(td); | |
540 | if (ret2 < 0) | |
541 | *ret = ret2; | |
542 | break; | |
543 | default: | |
b0775325 | 544 | assert(*ret < 0); |
e9d512d8 JA |
545 | td_verror(td, -(*ret), "td_io_queue"); |
546 | break; | |
547 | } | |
548 | ||
549 | if (break_on_this_error(td, ddir, ret)) | |
550 | return 1; | |
551 | ||
552 | return 0; | |
553 | } | |
554 | ||
e39c0676 | 555 | static inline bool io_in_polling(struct thread_data *td) |
82407585 RP |
556 | { |
557 | return !td->o.iodepth_batch_complete_min && | |
558 | !td->o.iodepth_batch_complete_max; | |
559 | } | |
560 | ||
2e1df07d JA |
561 | /* |
562 | * The main verify engine. Runs over the writes we previously submitted, | |
563 | * reads the blocks back in, and checks the crc/md5 of the data. | |
564 | */ | |
100f49f1 | 565 | static void do_verify(struct thread_data *td, uint64_t verify_bytes) |
2e1df07d JA |
566 | { |
567 | struct fio_file *f; | |
568 | struct io_u *io_u; | |
569 | int ret, min_events; | |
570 | unsigned int i; | |
571 | ||
572 | dprint(FD_VERIFY, "starting loop\n"); | |
573 | ||
574 | /* | |
575 | * sync io first and invalidate cache, to make sure we really | |
576 | * read from disk. | |
577 | */ | |
578 | for_each_file(td, f, i) { | |
579 | if (!fio_file_open(f)) | |
580 | continue; | |
581 | if (fio_io_sync(td, f)) | |
582 | break; | |
583 | if (file_invalidate_cache(td, f)) | |
584 | break; | |
585 | } | |
586 | ||
c97f1ad6 JA |
587 | check_update_rusage(td); |
588 | ||
2e1df07d JA |
589 | if (td->error) |
590 | return; | |
591 | ||
592 | td_set_runstate(td, TD_VERIFYING); | |
593 | ||
594 | io_u = NULL; | |
595 | while (!td->terminate) { | |
fbccf46c | 596 | enum fio_ddir ddir; |
e9d512d8 | 597 | int full; |
2e1df07d JA |
598 | |
599 | update_tv_cache(td); | |
c97f1ad6 | 600 | check_update_rusage(td); |
2e1df07d JA |
601 | |
602 | if (runtime_exceeded(td, &td->tv_cache)) { | |
603 | __update_tv_cache(td); | |
604 | if (runtime_exceeded(td, &td->tv_cache)) { | |
ebea2133 | 605 | fio_mark_td_terminate(td); |
2e1df07d JA |
606 | break; |
607 | } | |
608 | } | |
609 | ||
9e684a49 DE |
610 | if (flow_threshold_exceeded(td)) |
611 | continue; | |
612 | ||
44cbc6da JA |
613 | if (!td->o.experimental_verify) { |
614 | io_u = __get_io_u(td); | |
615 | if (!io_u) | |
616 | break; | |
2e1df07d | 617 | |
44cbc6da JA |
618 | if (get_next_verify(td, io_u)) { |
619 | put_io_u(td, io_u); | |
620 | break; | |
621 | } | |
2e1df07d | 622 | |
44cbc6da JA |
623 | if (td_io_prep(td, io_u)) { |
624 | put_io_u(td, io_u); | |
625 | break; | |
626 | } | |
627 | } else { | |
55312f9f | 628 | if (ddir_rw_sum(td->bytes_done) + td->o.rw_min_bs > verify_bytes) |
100f49f1 JA |
629 | break; |
630 | ||
bcd5abfa | 631 | while ((io_u = get_io_u(td)) != NULL) { |
002fe734 JA |
632 | if (IS_ERR(io_u)) { |
633 | io_u = NULL; | |
634 | ret = FIO_Q_BUSY; | |
635 | goto reap; | |
636 | } | |
637 | ||
bcd5abfa JA |
638 | /* |
639 | * We are only interested in the places where | |
640 | * we wrote or trimmed IOs. Turn those into | |
641 | * reads for verification purposes. | |
642 | */ | |
643 | if (io_u->ddir == DDIR_READ) { | |
644 | /* | |
645 | * Pretend we issued it for rwmix | |
646 | * accounting | |
647 | */ | |
648 | td->io_issues[DDIR_READ]++; | |
649 | put_io_u(td, io_u); | |
650 | continue; | |
651 | } else if (io_u->ddir == DDIR_TRIM) { | |
652 | io_u->ddir = DDIR_READ; | |
a9da8ab2 | 653 | io_u_set(io_u, IO_U_F_TRIMMED); |
bcd5abfa JA |
654 | break; |
655 | } else if (io_u->ddir == DDIR_WRITE) { | |
656 | io_u->ddir = DDIR_READ; | |
657 | break; | |
658 | } else { | |
659 | put_io_u(td, io_u); | |
660 | continue; | |
661 | } | |
662 | } | |
44cbc6da | 663 | |
bcd5abfa | 664 | if (!io_u) |
44cbc6da | 665 | break; |
2e1df07d JA |
666 | } |
667 | ||
ca09be4b JA |
668 | if (verify_state_should_stop(td, io_u)) { |
669 | put_io_u(td, io_u); | |
670 | break; | |
671 | } | |
672 | ||
2e1df07d JA |
673 | if (td->o.verify_async) |
674 | io_u->end_io = verify_io_u_async; | |
675 | else | |
676 | io_u->end_io = verify_io_u; | |
677 | ||
fbccf46c | 678 | ddir = io_u->ddir; |
10adc4a7 GG |
679 | if (!td->o.disable_slat) |
680 | fio_gettime(&io_u->start_time, NULL); | |
fbccf46c | 681 | |
2e1df07d | 682 | ret = td_io_queue(td, io_u); |
2e1df07d | 683 | |
e9d512d8 | 684 | if (io_queue_event(td, io_u, &ret, ddir, NULL, 1, NULL)) |
2e1df07d JA |
685 | break; |
686 | ||
687 | /* | |
688 | * if we can queue more, do so. but check if there are | |
689 | * completed io_u's first. Note that we can get BUSY even | |
690 | * without IO queued, if the system is resource starved. | |
691 | */ | |
002fe734 | 692 | reap: |
2e1df07d | 693 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); |
82407585 | 694 | if (full || io_in_polling(td)) |
55312f9f | 695 | ret = wait_for_completions(td, NULL); |
2e1df07d | 696 | |
2e1df07d JA |
697 | if (ret < 0) |
698 | break; | |
699 | } | |
700 | ||
c97f1ad6 JA |
701 | check_update_rusage(td); |
702 | ||
2e1df07d JA |
703 | if (!td->error) { |
704 | min_events = td->cur_depth; | |
705 | ||
706 | if (min_events) | |
55312f9f | 707 | ret = io_u_queued_complete(td, min_events); |
2e1df07d JA |
708 | } else |
709 | cleanup_pending_aio(td); | |
710 | ||
711 | td_set_runstate(td, TD_RUNNING); | |
712 | ||
713 | dprint(FD_VERIFY, "exiting loop\n"); | |
714 | } | |
715 | ||
e39c0676 | 716 | static bool exceeds_number_ios(struct thread_data *td) |
3939fe85 JA |
717 | { |
718 | unsigned long long number_ios; | |
719 | ||
720 | if (!td->o.number_ios) | |
e39c0676 | 721 | return false; |
3939fe85 | 722 | |
cf8a46a7 | 723 | number_ios = ddir_rw_sum(td->io_blocks); |
3939fe85 JA |
724 | number_ios += td->io_u_queued + td->io_u_in_flight; |
725 | ||
cf8a46a7 | 726 | return number_ios >= (td->o.number_ios * td->loops); |
3939fe85 JA |
727 | } |
728 | ||
e39c0676 | 729 | static bool io_issue_bytes_exceeded(struct thread_data *td) |
f7078f7b | 730 | { |
77731b29 | 731 | unsigned long long bytes, limit; |
f7078f7b JA |
732 | |
733 | if (td_rw(td)) | |
74d6277f | 734 | bytes = td->io_issue_bytes[DDIR_READ] + td->io_issue_bytes[DDIR_WRITE]; |
f7078f7b | 735 | else if (td_write(td)) |
74d6277f | 736 | bytes = td->io_issue_bytes[DDIR_WRITE]; |
6eaf09d6 | 737 | else if (td_read(td)) |
74d6277f | 738 | bytes = td->io_issue_bytes[DDIR_READ]; |
f7078f7b | 739 | else |
74d6277f | 740 | bytes = td->io_issue_bytes[DDIR_TRIM]; |
f7078f7b | 741 | |
77731b29 JA |
742 | if (td->o.io_limit) |
743 | limit = td->o.io_limit; | |
744 | else | |
745 | limit = td->o.size; | |
746 | ||
cf8a46a7 | 747 | limit *= td->loops; |
77731b29 | 748 | return bytes >= limit || exceeds_number_ios(td); |
f7078f7b JA |
749 | } |
750 | ||
e39c0676 | 751 | static bool io_complete_bytes_exceeded(struct thread_data *td) |
e28dd2cf JE |
752 | { |
753 | unsigned long long bytes, limit; | |
754 | ||
755 | if (td_rw(td)) | |
756 | bytes = td->this_io_bytes[DDIR_READ] + td->this_io_bytes[DDIR_WRITE]; | |
757 | else if (td_write(td)) | |
758 | bytes = td->this_io_bytes[DDIR_WRITE]; | |
759 | else if (td_read(td)) | |
760 | bytes = td->this_io_bytes[DDIR_READ]; | |
761 | else | |
762 | bytes = td->this_io_bytes[DDIR_TRIM]; | |
763 | ||
764 | if (td->o.io_limit) | |
765 | limit = td->o.io_limit; | |
766 | else | |
767 | limit = td->o.size; | |
768 | ||
cf8a46a7 | 769 | limit *= td->loops; |
e28dd2cf JE |
770 | return bytes >= limit || exceeds_number_ios(td); |
771 | } | |
772 | ||
50a8ce86 D |
773 | /* |
774 | * used to calculate the next io time for rate control | |
775 | * | |
776 | */ | |
777 | static long long usec_for_io(struct thread_data *td, enum fio_ddir ddir) | |
778 | { | |
ff6bb260 | 779 | uint64_t secs, remainder, bps, bytes, iops; |
50a8ce86 D |
780 | |
781 | assert(!(td->flags & TD_F_CHILD)); | |
782 | bytes = td->rate_io_issue_bytes[ddir]; | |
783 | bps = td->rate_bps[ddir]; | |
ff6bb260 | 784 | |
6de65959 | 785 | if (td->o.rate_process == RATE_PROCESS_POISSON) { |
a77d139b | 786 | uint64_t val; |
ff6bb260 | 787 | iops = bps / td->o.bs[ddir]; |
a77d139b JA |
788 | val = (int64_t) (1000000 / iops) * |
789 | -logf(__rand_0_1(&td->poisson_state)); | |
790 | if (val) { | |
791 | dprint(FD_RATE, "poisson rate iops=%llu\n", | |
792 | (unsigned long long) 1000000 / val); | |
793 | } | |
794 | td->last_usec += val; | |
ff6bb260 SL |
795 | return td->last_usec; |
796 | } else if (bps) { | |
50a8ce86 D |
797 | secs = bytes / bps; |
798 | remainder = bytes % bps; | |
799 | return remainder * 1000000 / bps + secs * 1000000; | |
e7b24047 JA |
800 | } |
801 | ||
802 | return 0; | |
50a8ce86 D |
803 | } |
804 | ||
2e1df07d JA |
805 | /* |
806 | * Main IO worker function. It retrieves io_u's to process and queues | |
807 | * and reaps them, checking for rate and errors along the way. | |
100f49f1 JA |
808 | * |
809 | * Returns number of bytes written and trimmed. | |
2e1df07d | 810 | */ |
100f49f1 | 811 | static uint64_t do_io(struct thread_data *td) |
2e1df07d JA |
812 | { |
813 | unsigned int i; | |
814 | int ret = 0; | |
c2703bf3 | 815 | uint64_t total_bytes, bytes_issued = 0; |
2e1df07d JA |
816 | |
817 | if (in_ramp_time(td)) | |
818 | td_set_runstate(td, TD_RAMP); | |
819 | else | |
820 | td_set_runstate(td, TD_RUNNING); | |
821 | ||
3e260a46 JA |
822 | lat_target_init(td); |
823 | ||
1e564979 JE |
824 | total_bytes = td->o.size; |
825 | /* | |
826 | * Allow random overwrite workloads to write up to io_limit | |
827 | * before starting verification phase as 'size' doesn't apply. | |
828 | */ | |
829 | if (td_write(td) && td_random(td) && td->o.norandommap) | |
830 | total_bytes = max(total_bytes, (uint64_t) td->o.io_limit); | |
78a6469c JA |
831 | /* |
832 | * If verify_backlog is enabled, we'll run the verify in this | |
833 | * handler as well. For that case, we may need up to twice the | |
834 | * amount of bytes. | |
835 | */ | |
78a6469c JA |
836 | if (td->o.verify != VERIFY_NONE && |
837 | (td_write(td) && td->o.verify_backlog)) | |
c2703bf3 JA |
838 | total_bytes += td->o.size; |
839 | ||
82a90686 | 840 | /* In trimwrite mode, each byte is trimmed and then written, so |
0e4dd95c | 841 | * allow total_bytes to be twice as big */ |
82a90686 | 842 | if (td_trimwrite(td)) |
0e4dd95c DE |
843 | total_bytes += td->total_io_size; |
844 | ||
f7078f7b | 845 | while ((td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || |
e28dd2cf | 846 | (!flist_empty(&td->trim_list)) || !io_issue_bytes_exceeded(td) || |
c04e4661 | 847 | td->o.time_based) { |
2e1df07d | 848 | struct timeval comp_time; |
2e1df07d | 849 | struct io_u *io_u; |
e9d512d8 | 850 | int full; |
2e1df07d JA |
851 | enum fio_ddir ddir; |
852 | ||
c97f1ad6 JA |
853 | check_update_rusage(td); |
854 | ||
7d7803fa | 855 | if (td->terminate || td->done) |
2e1df07d JA |
856 | break; |
857 | ||
858 | update_tv_cache(td); | |
859 | ||
860 | if (runtime_exceeded(td, &td->tv_cache)) { | |
861 | __update_tv_cache(td); | |
862 | if (runtime_exceeded(td, &td->tv_cache)) { | |
ebea2133 | 863 | fio_mark_td_terminate(td); |
2e1df07d JA |
864 | break; |
865 | } | |
866 | } | |
867 | ||
9e684a49 DE |
868 | if (flow_threshold_exceeded(td)) |
869 | continue; | |
870 | ||
c82ea3d4 | 871 | if (!td->o.time_based && bytes_issued >= total_bytes) |
20876c53 JC |
872 | break; |
873 | ||
2e1df07d | 874 | io_u = get_io_u(td); |
002fe734 JA |
875 | if (IS_ERR_OR_NULL(io_u)) { |
876 | int err = PTR_ERR(io_u); | |
877 | ||
878 | io_u = NULL; | |
879 | if (err == -EBUSY) { | |
880 | ret = FIO_Q_BUSY; | |
881 | goto reap; | |
882 | } | |
3e260a46 JA |
883 | if (td->o.latency_target) |
884 | goto reap; | |
2e1df07d | 885 | break; |
3e260a46 | 886 | } |
2e1df07d JA |
887 | |
888 | ddir = io_u->ddir; | |
889 | ||
890 | /* | |
82af2a7c JA |
891 | * Add verification end_io handler if: |
892 | * - Asked to verify (!td_rw(td)) | |
893 | * - Or the io_u is from our verify list (mixed write/ver) | |
2e1df07d JA |
894 | */ |
895 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ && | |
82af2a7c | 896 | ((io_u->flags & IO_U_F_VER_LIST) || !td_rw(td))) { |
c4b6117b PV |
897 | |
898 | if (!td->o.verify_pattern_bytes) { | |
d6b72507 | 899 | io_u->rand_seed = __rand(&td->verify_state); |
c4b6117b | 900 | if (sizeof(int) != sizeof(long *)) |
d6b72507 | 901 | io_u->rand_seed *= __rand(&td->verify_state); |
c4b6117b PV |
902 | } |
903 | ||
ca09be4b JA |
904 | if (verify_state_should_stop(td, io_u)) { |
905 | put_io_u(td, io_u); | |
906 | break; | |
907 | } | |
908 | ||
2e1df07d JA |
909 | if (td->o.verify_async) |
910 | io_u->end_io = verify_io_u_async; | |
911 | else | |
912 | io_u->end_io = verify_io_u; | |
913 | td_set_runstate(td, TD_VERIFYING); | |
914 | } else if (in_ramp_time(td)) | |
915 | td_set_runstate(td, TD_RAMP); | |
916 | else | |
917 | td_set_runstate(td, TD_RUNNING); | |
918 | ||
9a50c5c5 | 919 | /* |
f9401285 JA |
920 | * Always log IO before it's issued, so we know the specific |
921 | * order of it. The logged unit will track when the IO has | |
922 | * completed. | |
9a50c5c5 | 923 | */ |
c4b6117b PV |
924 | if (td_write(td) && io_u->ddir == DDIR_WRITE && |
925 | td->o.do_verify && | |
926 | td->o.verify != VERIFY_NONE && | |
f9401285 | 927 | !td->o.experimental_verify) |
c4b6117b PV |
928 | log_io_piece(td, io_u); |
929 | ||
a9da8ab2 | 930 | if (td->o.io_submit_mode == IO_MODE_OFFLOAD) { |
0c5df5f9 JA |
931 | const unsigned long blen = io_u->xfer_buflen; |
932 | const enum fio_ddir ddir = acct_ddir(io_u); | |
933 | ||
a9da8ab2 JA |
934 | if (td->error) |
935 | break; | |
0c5df5f9 | 936 | |
a9da8ab2 | 937 | ret = workqueue_enqueue(&td->io_wq, io_u); |
50a8ce86 | 938 | |
0c5df5f9 JA |
939 | if (ret == FIO_Q_QUEUED && ddir_rw(ddir)) { |
940 | td->io_issues[ddir]++; | |
941 | td->io_issue_bytes[ddir] += blen; | |
942 | td->rate_io_issue_bytes[ddir] += blen; | |
943 | } | |
944 | ||
50a8ce86 D |
945 | if (should_check_rate(td)) |
946 | td->rate_next_io_time[ddir] = usec_for_io(td, ddir); | |
947 | ||
a9da8ab2 JA |
948 | } else { |
949 | ret = td_io_queue(td, io_u); | |
2e1df07d | 950 | |
50a8ce86 D |
951 | if (should_check_rate(td)) |
952 | td->rate_next_io_time[ddir] = usec_for_io(td, ddir); | |
953 | ||
fd727d9d | 954 | if (io_queue_event(td, io_u, &ret, ddir, &bytes_issued, 0, &comp_time)) |
a9da8ab2 | 955 | break; |
2e1df07d | 956 | |
a9da8ab2 JA |
957 | /* |
958 | * See if we need to complete some commands. Note that | |
959 | * we can get BUSY even without IO queued, if the | |
960 | * system is resource starved. | |
961 | */ | |
3e260a46 | 962 | reap: |
a9da8ab2 JA |
963 | full = queue_full(td) || |
964 | (ret == FIO_Q_BUSY && td->cur_depth); | |
82407585 | 965 | if (full || io_in_polling(td)) |
a9da8ab2 JA |
966 | ret = wait_for_completions(td, &comp_time); |
967 | } | |
2e1df07d JA |
968 | if (ret < 0) |
969 | break; | |
55312f9f JA |
970 | if (!ddir_rw_sum(td->bytes_done) && |
971 | !(td->io_ops->flags & FIO_NOIO)) | |
2e1df07d JA |
972 | continue; |
973 | ||
55312f9f JA |
974 | if (!in_ramp_time(td) && should_check_rate(td)) { |
975 | if (check_min_rate(td, &comp_time)) { | |
2e1df07d JA |
976 | if (exitall_on_terminate) |
977 | fio_terminate_threads(td->groupid); | |
978 | td_verror(td, EIO, "check_min_rate"); | |
979 | break; | |
980 | } | |
981 | } | |
3e260a46 JA |
982 | if (!in_ramp_time(td) && td->o.latency_target) |
983 | lat_target_check(td); | |
e155cb64 | 984 | |
2e1df07d JA |
985 | if (td->o.thinktime) { |
986 | unsigned long long b; | |
987 | ||
342f4be4 | 988 | b = ddir_rw_sum(td->io_blocks); |
2e1df07d JA |
989 | if (!(b % td->o.thinktime_blocks)) { |
990 | int left; | |
991 | ||
002e7183 JA |
992 | io_u_quiesce(td); |
993 | ||
2e1df07d JA |
994 | if (td->o.thinktime_spin) |
995 | usec_spin(td->o.thinktime_spin); | |
996 | ||
997 | left = td->o.thinktime - td->o.thinktime_spin; | |
998 | if (left) | |
999 | usec_sleep(td, left); | |
1000 | } | |
1001 | } | |
1002 | } | |
1003 | ||
c97f1ad6 JA |
1004 | check_update_rusage(td); |
1005 | ||
2e1df07d | 1006 | if (td->trim_entries) |
4e0a8fa2 | 1007 | log_err("fio: %lu trim entries leaked?\n", td->trim_entries); |
2e1df07d JA |
1008 | |
1009 | if (td->o.fill_device && td->error == ENOSPC) { | |
1010 | td->error = 0; | |
ebea2133 | 1011 | fio_mark_td_terminate(td); |
2e1df07d JA |
1012 | } |
1013 | if (!td->error) { | |
1014 | struct fio_file *f; | |
1015 | ||
a9da8ab2 JA |
1016 | if (td->o.io_submit_mode == IO_MODE_OFFLOAD) { |
1017 | workqueue_flush(&td->io_wq); | |
1018 | i = 0; | |
1019 | } else | |
1020 | i = td->cur_depth; | |
1021 | ||
2e1df07d | 1022 | if (i) { |
55312f9f | 1023 | ret = io_u_queued_complete(td, i); |
2e1df07d JA |
1024 | if (td->o.fill_device && td->error == ENOSPC) |
1025 | td->error = 0; | |
1026 | } | |
1027 | ||
1028 | if (should_fsync(td) && td->o.end_fsync) { | |
1029 | td_set_runstate(td, TD_FSYNCING); | |
1030 | ||
1031 | for_each_file(td, f, i) { | |
61ee0f86 | 1032 | if (!fio_file_fsync(td, f)) |
2e1df07d | 1033 | continue; |
61ee0f86 JA |
1034 | |
1035 | log_err("fio: end_fsync failed for file %s\n", | |
1036 | f->file_name); | |
2e1df07d JA |
1037 | } |
1038 | } | |
1039 | } else | |
1040 | cleanup_pending_aio(td); | |
1041 | ||
1042 | /* | |
1043 | * stop job if we failed doing any IO | |
1044 | */ | |
342f4be4 | 1045 | if (!ddir_rw_sum(td->this_io_bytes)) |
2e1df07d | 1046 | td->done = 1; |
100f49f1 | 1047 | |
55312f9f | 1048 | return td->bytes_done[DDIR_WRITE] + td->bytes_done[DDIR_TRIM]; |
2e1df07d JA |
1049 | } |
1050 | ||
1051 | static void cleanup_io_u(struct thread_data *td) | |
1052 | { | |
2e1df07d JA |
1053 | struct io_u *io_u; |
1054 | ||
2ae0b204 | 1055 | while ((io_u = io_u_qpop(&td->io_u_freelist)) != NULL) { |
c73ed246 JA |
1056 | |
1057 | if (td->io_ops->io_u_free) | |
1058 | td->io_ops->io_u_free(td, io_u); | |
1059 | ||
2e1df07d JA |
1060 | fio_memfree(io_u, sizeof(*io_u)); |
1061 | } | |
1062 | ||
1063 | free_io_mem(td); | |
2ae0b204 JA |
1064 | |
1065 | io_u_rexit(&td->io_u_requeues); | |
1066 | io_u_qexit(&td->io_u_freelist); | |
1067 | io_u_qexit(&td->io_u_all); | |
ca09be4b JA |
1068 | |
1069 | if (td->last_write_comp) | |
1070 | sfree(td->last_write_comp); | |
2e1df07d JA |
1071 | } |
1072 | ||
1073 | static int init_io_u(struct thread_data *td) | |
1074 | { | |
1075 | struct io_u *io_u; | |
9c42684e | 1076 | unsigned int max_bs, min_write; |
2e1df07d | 1077 | int cl_align, i, max_units; |
2ae0b204 | 1078 | int data_xfer = 1, err; |
2e1df07d JA |
1079 | char *p; |
1080 | ||
1081 | max_units = td->o.iodepth; | |
74f4b020 | 1082 | max_bs = td_max_bs(td); |
9c42684e | 1083 | min_write = td->o.min_bs[DDIR_WRITE]; |
2e1df07d JA |
1084 | td->orig_buffer_size = (unsigned long long) max_bs |
1085 | * (unsigned long long) max_units; | |
1086 | ||
88045e04 | 1087 | if ((td->io_ops->flags & FIO_NOIO) || !(td_read(td) || td_write(td))) |
59d8d0f5 JA |
1088 | data_xfer = 0; |
1089 | ||
2ae0b204 JA |
1090 | err = 0; |
1091 | err += io_u_rinit(&td->io_u_requeues, td->o.iodepth); | |
1092 | err += io_u_qinit(&td->io_u_freelist, td->o.iodepth); | |
1093 | err += io_u_qinit(&td->io_u_all, td->o.iodepth); | |
1094 | ||
1095 | if (err) { | |
1096 | log_err("fio: failed setting up IO queues\n"); | |
1097 | return 1; | |
1098 | } | |
1099 | ||
fd8a09b8 | 1100 | /* |
1101 | * if we may later need to do address alignment, then add any | |
1102 | * possible adjustment here so that we don't cause a buffer | |
1103 | * overflow later. this adjustment may be too much if we get | |
1104 | * lucky and the allocator gives us an aligned address. | |
1105 | */ | |
d01612f3 CM |
1106 | if (td->o.odirect || td->o.mem_align || td->o.oatomic || |
1107 | (td->io_ops->flags & FIO_RAWIO)) | |
fd8a09b8 | 1108 | td->orig_buffer_size += page_mask + td->o.mem_align; |
1109 | ||
2e1df07d JA |
1110 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { |
1111 | unsigned long bs; | |
1112 | ||
1113 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; | |
1114 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); | |
1115 | } | |
1116 | ||
1117 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { | |
1118 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
1119 | return 1; | |
1120 | } | |
1121 | ||
59d8d0f5 | 1122 | if (data_xfer && allocate_io_mem(td)) |
2e1df07d JA |
1123 | return 1; |
1124 | ||
d01612f3 | 1125 | if (td->o.odirect || td->o.mem_align || td->o.oatomic || |
2e1df07d JA |
1126 | (td->io_ops->flags & FIO_RAWIO)) |
1127 | p = PAGE_ALIGN(td->orig_buffer) + td->o.mem_align; | |
1128 | else | |
1129 | p = td->orig_buffer; | |
1130 | ||
1131 | cl_align = os_cache_line_size(); | |
1132 | ||
1133 | for (i = 0; i < max_units; i++) { | |
1134 | void *ptr; | |
1135 | ||
1136 | if (td->terminate) | |
1137 | return 1; | |
1138 | ||
1139 | ptr = fio_memalign(cl_align, sizeof(*io_u)); | |
1140 | if (!ptr) { | |
1141 | log_err("fio: unable to allocate aligned memory\n"); | |
1142 | break; | |
1143 | } | |
1144 | ||
1145 | io_u = ptr; | |
1146 | memset(io_u, 0, sizeof(*io_u)); | |
2ae0b204 | 1147 | INIT_FLIST_HEAD(&io_u->verify_list); |
2e1df07d JA |
1148 | dprint(FD_MEM, "io_u alloc %p, index %u\n", io_u, i); |
1149 | ||
59d8d0f5 | 1150 | if (data_xfer) { |
2e1df07d JA |
1151 | io_u->buf = p; |
1152 | dprint(FD_MEM, "io_u %p, mem %p\n", io_u, io_u->buf); | |
1153 | ||
1154 | if (td_write(td)) | |
9c42684e | 1155 | io_u_fill_buffer(td, io_u, min_write, max_bs); |
2e1df07d JA |
1156 | if (td_write(td) && td->o.verify_pattern_bytes) { |
1157 | /* | |
1158 | * Fill the buffer with the pattern if we are | |
1159 | * going to be doing writes. | |
1160 | */ | |
ce35b1ec | 1161 | fill_verify_pattern(td, io_u->buf, max_bs, io_u, 0, 0); |
2e1df07d JA |
1162 | } |
1163 | } | |
1164 | ||
1165 | io_u->index = i; | |
1166 | io_u->flags = IO_U_F_FREE; | |
2ae0b204 JA |
1167 | io_u_qpush(&td->io_u_freelist, io_u); |
1168 | ||
1169 | /* | |
1170 | * io_u never leaves this stack, used for iteration of all | |
1171 | * io_u buffers. | |
1172 | */ | |
1173 | io_u_qpush(&td->io_u_all, io_u); | |
c73ed246 JA |
1174 | |
1175 | if (td->io_ops->io_u_init) { | |
1176 | int ret = td->io_ops->io_u_init(td, io_u); | |
1177 | ||
1178 | if (ret) { | |
1179 | log_err("fio: failed to init engine data: %d\n", ret); | |
1180 | return 1; | |
1181 | } | |
1182 | } | |
1183 | ||
2e1df07d JA |
1184 | p += max_bs; |
1185 | } | |
1186 | ||
ca09be4b JA |
1187 | if (td->o.verify != VERIFY_NONE) { |
1188 | td->last_write_comp = scalloc(max_units, sizeof(uint64_t)); | |
1189 | if (!td->last_write_comp) { | |
1190 | log_err("fio: failed to alloc write comp data\n"); | |
1191 | return 1; | |
1192 | } | |
1193 | } | |
1194 | ||
2e1df07d JA |
1195 | return 0; |
1196 | } | |
1197 | ||
1198 | static int switch_ioscheduler(struct thread_data *td) | |
1199 | { | |
1200 | char tmp[256], tmp2[128]; | |
1201 | FILE *f; | |
1202 | int ret; | |
1203 | ||
1204 | if (td->io_ops->flags & FIO_DISKLESSIO) | |
1205 | return 0; | |
1206 | ||
1207 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); | |
1208 | ||
1209 | f = fopen(tmp, "r+"); | |
1210 | if (!f) { | |
1211 | if (errno == ENOENT) { | |
1212 | log_err("fio: os or kernel doesn't support IO scheduler" | |
1213 | " switching\n"); | |
1214 | return 0; | |
1215 | } | |
1216 | td_verror(td, errno, "fopen iosched"); | |
1217 | return 1; | |
1218 | } | |
1219 | ||
1220 | /* | |
1221 | * Set io scheduler. | |
1222 | */ | |
1223 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); | |
1224 | if (ferror(f) || ret != 1) { | |
1225 | td_verror(td, errno, "fwrite"); | |
1226 | fclose(f); | |
1227 | return 1; | |
1228 | } | |
1229 | ||
1230 | rewind(f); | |
1231 | ||
1232 | /* | |
1233 | * Read back and check that the selected scheduler is now the default. | |
1234 | */ | |
b44b9e45 | 1235 | memset(tmp, 0, sizeof(tmp)); |
49c6f33d | 1236 | ret = fread(tmp, sizeof(tmp), 1, f); |
2e1df07d JA |
1237 | if (ferror(f) || ret < 0) { |
1238 | td_verror(td, errno, "fread"); | |
1239 | fclose(f); | |
1240 | return 1; | |
1241 | } | |
b44b9e45 TK |
1242 | /* |
1243 | * either a list of io schedulers or "none\n" is expected. | |
1244 | */ | |
1245 | tmp[strlen(tmp) - 1] = '\0'; | |
49c6f33d | 1246 | |
2e1df07d JA |
1247 | |
1248 | sprintf(tmp2, "[%s]", td->o.ioscheduler); | |
1249 | if (!strstr(tmp, tmp2)) { | |
1250 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); | |
1251 | td_verror(td, EINVAL, "iosched_switch"); | |
1252 | fclose(f); | |
1253 | return 1; | |
1254 | } | |
1255 | ||
1256 | fclose(f); | |
1257 | return 0; | |
1258 | } | |
1259 | ||
e39c0676 | 1260 | static bool keep_running(struct thread_data *td) |
2e1df07d | 1261 | { |
77731b29 JA |
1262 | unsigned long long limit; |
1263 | ||
2e1df07d | 1264 | if (td->done) |
e39c0676 | 1265 | return false; |
2e1df07d | 1266 | if (td->o.time_based) |
e39c0676 | 1267 | return true; |
2e1df07d JA |
1268 | if (td->o.loops) { |
1269 | td->o.loops--; | |
e39c0676 | 1270 | return true; |
2e1df07d | 1271 | } |
3939fe85 | 1272 | if (exceeds_number_ios(td)) |
e39c0676 | 1273 | return false; |
26251d8d | 1274 | |
77731b29 JA |
1275 | if (td->o.io_limit) |
1276 | limit = td->o.io_limit; | |
1277 | else | |
1278 | limit = td->o.size; | |
1279 | ||
1280 | if (limit != -1ULL && ddir_rw_sum(td->io_bytes) < limit) { | |
5bd5f71a JA |
1281 | uint64_t diff; |
1282 | ||
1283 | /* | |
1284 | * If the difference is less than the minimum IO size, we | |
1285 | * are done. | |
1286 | */ | |
77731b29 | 1287 | diff = limit - ddir_rw_sum(td->io_bytes); |
74f4b020 | 1288 | if (diff < td_max_bs(td)) |
e39c0676 | 1289 | return false; |
5bd5f71a | 1290 | |
002fe734 | 1291 | if (fio_files_done(td)) |
e39c0676 | 1292 | return false; |
002fe734 | 1293 | |
e39c0676 | 1294 | return true; |
5bd5f71a | 1295 | } |
2e1df07d | 1296 | |
e39c0676 | 1297 | return false; |
2e1df07d JA |
1298 | } |
1299 | ||
ce486495 | 1300 | static int exec_string(struct thread_options *o, const char *string, const char *mode) |
2e1df07d | 1301 | { |
6c9ce469 | 1302 | size_t newlen = strlen(string) + strlen(o->name) + strlen(mode) + 9 + 1; |
f491a907 | 1303 | int ret; |
2e1df07d JA |
1304 | char *str; |
1305 | ||
1306 | str = malloc(newlen); | |
ce486495 | 1307 | sprintf(str, "%s &> %s.%s.txt", string, o->name, mode); |
2e1df07d | 1308 | |
ce486495 | 1309 | log_info("%s : Saving output of %s in %s.%s.txt\n",o->name, mode, o->name, mode); |
2e1df07d JA |
1310 | ret = system(str); |
1311 | if (ret == -1) | |
1312 | log_err("fio: exec of cmd <%s> failed\n", str); | |
1313 | ||
1314 | free(str); | |
1315 | return ret; | |
1316 | } | |
1317 | ||
62167762 JC |
1318 | /* |
1319 | * Dry run to compute correct state of numberio for verification. | |
1320 | */ | |
1321 | static uint64_t do_dry_run(struct thread_data *td) | |
1322 | { | |
62167762 JC |
1323 | td_set_runstate(td, TD_RUNNING); |
1324 | ||
1325 | while ((td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || | |
e28dd2cf | 1326 | (!flist_empty(&td->trim_list)) || !io_complete_bytes_exceeded(td)) { |
62167762 JC |
1327 | struct io_u *io_u; |
1328 | int ret; | |
1329 | ||
1330 | if (td->terminate || td->done) | |
1331 | break; | |
1332 | ||
1333 | io_u = get_io_u(td); | |
1334 | if (!io_u) | |
1335 | break; | |
1336 | ||
a9da8ab2 | 1337 | io_u_set(io_u, IO_U_F_FLIGHT); |
62167762 JC |
1338 | io_u->error = 0; |
1339 | io_u->resid = 0; | |
1340 | if (ddir_rw(acct_ddir(io_u))) | |
1341 | td->io_issues[acct_ddir(io_u)]++; | |
1342 | if (ddir_rw(io_u->ddir)) { | |
1343 | io_u_mark_depth(td, 1); | |
1344 | td->ts.total_io_u[io_u->ddir]++; | |
1345 | } | |
1346 | ||
2e63e96b PV |
1347 | if (td_write(td) && io_u->ddir == DDIR_WRITE && |
1348 | td->o.do_verify && | |
1349 | td->o.verify != VERIFY_NONE && | |
1350 | !td->o.experimental_verify) | |
1351 | log_io_piece(td, io_u); | |
1352 | ||
55312f9f | 1353 | ret = io_u_sync_complete(td, io_u); |
62167762 JC |
1354 | (void) ret; |
1355 | } | |
1356 | ||
55312f9f | 1357 | return td->bytes_done[DDIR_WRITE] + td->bytes_done[DDIR_TRIM]; |
62167762 JC |
1358 | } |
1359 | ||
a9da8ab2 JA |
1360 | static void io_workqueue_fn(struct thread_data *td, struct io_u *io_u) |
1361 | { | |
1362 | const enum fio_ddir ddir = io_u->ddir; | |
1363 | int ret; | |
1364 | ||
1365 | dprint(FD_RATE, "io_u %p queued by %u\n", io_u, gettid()); | |
1366 | ||
1367 | io_u_set(io_u, IO_U_F_NO_FILE_PUT); | |
1368 | ||
1369 | td->cur_depth++; | |
1370 | ||
40649b00 JA |
1371 | do { |
1372 | ret = td_io_queue(td, io_u); | |
1373 | if (ret != FIO_Q_BUSY) | |
1374 | break; | |
1375 | ret = io_u_queued_complete(td, 1); | |
1376 | if (ret > 0) | |
1377 | td->cur_depth -= ret; | |
1378 | io_u_clear(io_u, IO_U_F_FLIGHT); | |
1379 | } while (1); | |
a9da8ab2 JA |
1380 | |
1381 | dprint(FD_RATE, "io_u %p ret %d by %u\n", io_u, ret, gettid()); | |
1382 | ||
1383 | io_queue_event(td, io_u, &ret, ddir, NULL, 0, NULL); | |
1384 | ||
40649b00 JA |
1385 | if (ret == FIO_Q_COMPLETED) |
1386 | td->cur_depth--; | |
1387 | else if (ret == FIO_Q_QUEUED) { | |
1388 | unsigned int min_evts; | |
a9da8ab2 | 1389 | |
40649b00 JA |
1390 | if (td->o.iodepth == 1) |
1391 | min_evts = 1; | |
1392 | else | |
1393 | min_evts = 0; | |
1394 | ||
1395 | ret = io_u_queued_complete(td, min_evts); | |
1396 | if (ret > 0) | |
1397 | td->cur_depth -= ret; | |
1398 | } else if (ret == FIO_Q_BUSY) { | |
1399 | ret = io_u_queued_complete(td, td->cur_depth); | |
1400 | if (ret > 0) | |
1401 | td->cur_depth -= ret; | |
1402 | } | |
a9da8ab2 JA |
1403 | } |
1404 | ||
2e1df07d JA |
1405 | /* |
1406 | * Entry point for the thread based jobs. The process based jobs end up | |
1407 | * here as well, after a little setup. | |
1408 | */ | |
1409 | static void *thread_main(void *data) | |
1410 | { | |
95603b74 | 1411 | unsigned long long elapsed_us[DDIR_RWDIR_CNT] = { 0, }; |
2e1df07d | 1412 | struct thread_data *td = data; |
4896473e | 1413 | struct thread_options *o = &td->o; |
2e1df07d JA |
1414 | pthread_condattr_t attr; |
1415 | int clear_state; | |
28727df7 | 1416 | int ret; |
2e1df07d | 1417 | |
4896473e | 1418 | if (!o->use_thread) { |
2e1df07d JA |
1419 | setsid(); |
1420 | td->pid = getpid(); | |
1421 | } else | |
1422 | td->pid = gettid(); | |
1423 | ||
4896473e | 1424 | fio_local_clock_init(o->use_thread); |
5d879392 | 1425 | |
2e1df07d JA |
1426 | dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); |
1427 | ||
122c7725 JA |
1428 | if (is_backend) |
1429 | fio_server_send_start(td); | |
1430 | ||
2e1df07d JA |
1431 | INIT_FLIST_HEAD(&td->io_log_list); |
1432 | INIT_FLIST_HEAD(&td->io_hist_list); | |
1433 | INIT_FLIST_HEAD(&td->verify_list); | |
1434 | INIT_FLIST_HEAD(&td->trim_list); | |
1ae83d45 | 1435 | INIT_FLIST_HEAD(&td->next_rand_list); |
2e1df07d JA |
1436 | pthread_mutex_init(&td->io_u_lock, NULL); |
1437 | td->io_hist_tree = RB_ROOT; | |
1438 | ||
1439 | pthread_condattr_init(&attr); | |
1440 | pthread_cond_init(&td->verify_cond, &attr); | |
1441 | pthread_cond_init(&td->free_cond, &attr); | |
1442 | ||
1443 | td_set_runstate(td, TD_INITIALIZED); | |
1444 | dprint(FD_MUTEX, "up startup_mutex\n"); | |
1445 | fio_mutex_up(startup_mutex); | |
1446 | dprint(FD_MUTEX, "wait on td->mutex\n"); | |
1447 | fio_mutex_down(td->mutex); | |
1448 | dprint(FD_MUTEX, "done waiting on td->mutex\n"); | |
1449 | ||
2e1df07d JA |
1450 | /* |
1451 | * A new gid requires privilege, so we need to do this before setting | |
1452 | * the uid. | |
1453 | */ | |
4896473e | 1454 | if (o->gid != -1U && setgid(o->gid)) { |
2e1df07d JA |
1455 | td_verror(td, errno, "setgid"); |
1456 | goto err; | |
1457 | } | |
4896473e | 1458 | if (o->uid != -1U && setuid(o->uid)) { |
2e1df07d JA |
1459 | td_verror(td, errno, "setuid"); |
1460 | goto err; | |
1461 | } | |
1462 | ||
1463 | /* | |
1464 | * If we have a gettimeofday() thread, make sure we exclude that | |
1465 | * thread from this job | |
1466 | */ | |
4896473e JA |
1467 | if (o->gtod_cpu) |
1468 | fio_cpu_clear(&o->cpumask, o->gtod_cpu); | |
2e1df07d JA |
1469 | |
1470 | /* | |
1471 | * Set affinity first, in case it has an impact on the memory | |
1472 | * allocations. | |
1473 | */ | |
b2a9e649 | 1474 | if (fio_option_is_set(o, cpumask)) { |
c2acfbac | 1475 | if (o->cpus_allowed_policy == FIO_CPUS_SPLIT) { |
30cb4c65 | 1476 | ret = fio_cpus_split(&o->cpumask, td->thread_number - 1); |
c2acfbac JA |
1477 | if (!ret) { |
1478 | log_err("fio: no CPUs set\n"); | |
1479 | log_err("fio: Try increasing number of available CPUs\n"); | |
1480 | td_verror(td, EINVAL, "cpus_split"); | |
1481 | goto err; | |
1482 | } | |
1483 | } | |
28727df7 JA |
1484 | ret = fio_setaffinity(td->pid, o->cpumask); |
1485 | if (ret == -1) { | |
4896473e JA |
1486 | td_verror(td, errno, "cpu_set_affinity"); |
1487 | goto err; | |
1488 | } | |
2e1df07d JA |
1489 | } |
1490 | ||
67bf9823 | 1491 | #ifdef CONFIG_LIBNUMA |
d0b937ed | 1492 | /* numa node setup */ |
b2a9e649 JA |
1493 | if (fio_option_is_set(o, numa_cpunodes) || |
1494 | fio_option_is_set(o, numa_memnodes)) { | |
43522848 | 1495 | struct bitmask *mask; |
d0b937ed YR |
1496 | |
1497 | if (numa_available() < 0) { | |
1498 | td_verror(td, errno, "Does not support NUMA API\n"); | |
1499 | goto err; | |
1500 | } | |
1501 | ||
b2a9e649 | 1502 | if (fio_option_is_set(o, numa_cpunodes)) { |
43522848 DG |
1503 | mask = numa_parse_nodestring(o->numa_cpunodes); |
1504 | ret = numa_run_on_node_mask(mask); | |
1505 | numa_free_nodemask(mask); | |
d0b937ed YR |
1506 | if (ret == -1) { |
1507 | td_verror(td, errno, \ | |
1508 | "numa_run_on_node_mask failed\n"); | |
1509 | goto err; | |
1510 | } | |
1511 | } | |
1512 | ||
b2a9e649 | 1513 | if (fio_option_is_set(o, numa_memnodes)) { |
43522848 DG |
1514 | mask = NULL; |
1515 | if (o->numa_memnodes) | |
1516 | mask = numa_parse_nodestring(o->numa_memnodes); | |
1517 | ||
4896473e | 1518 | switch (o->numa_mem_mode) { |
d0b937ed | 1519 | case MPOL_INTERLEAVE: |
43522848 | 1520 | numa_set_interleave_mask(mask); |
d0b937ed YR |
1521 | break; |
1522 | case MPOL_BIND: | |
43522848 | 1523 | numa_set_membind(mask); |
d0b937ed YR |
1524 | break; |
1525 | case MPOL_LOCAL: | |
1526 | numa_set_localalloc(); | |
1527 | break; | |
1528 | case MPOL_PREFERRED: | |
4896473e | 1529 | numa_set_preferred(o->numa_mem_prefer_node); |
d0b937ed YR |
1530 | break; |
1531 | case MPOL_DEFAULT: | |
1532 | default: | |
1533 | break; | |
1534 | } | |
1535 | ||
43522848 DG |
1536 | if (mask) |
1537 | numa_free_nodemask(mask); | |
1538 | ||
d0b937ed YR |
1539 | } |
1540 | } | |
1541 | #endif | |
1542 | ||
9a3f1100 JA |
1543 | if (fio_pin_memory(td)) |
1544 | goto err; | |
1545 | ||
2e1df07d JA |
1546 | /* |
1547 | * May alter parameters that init_io_u() will use, so we need to | |
1548 | * do this first. | |
1549 | */ | |
1550 | if (init_iolog(td)) | |
1551 | goto err; | |
1552 | ||
1553 | if (init_io_u(td)) | |
1554 | goto err; | |
1555 | ||
4896473e | 1556 | if (o->verify_async && verify_async_init(td)) |
2e1df07d JA |
1557 | goto err; |
1558 | ||
27d74836 JA |
1559 | if (fio_option_is_set(o, ioprio) || |
1560 | fio_option_is_set(o, ioprio_class)) { | |
28727df7 JA |
1561 | ret = ioprio_set(IOPRIO_WHO_PROCESS, 0, o->ioprio_class, o->ioprio); |
1562 | if (ret == -1) { | |
2e1df07d JA |
1563 | td_verror(td, errno, "ioprio_set"); |
1564 | goto err; | |
1565 | } | |
1566 | } | |
1567 | ||
4896473e | 1568 | if (o->cgroup && cgroup_setup(td, cgroup_list, &cgroup_mnt)) |
2e1df07d JA |
1569 | goto err; |
1570 | ||
649c10c5 | 1571 | errno = 0; |
4896473e | 1572 | if (nice(o->nice) == -1 && errno != 0) { |
2e1df07d JA |
1573 | td_verror(td, errno, "nice"); |
1574 | goto err; | |
1575 | } | |
1576 | ||
4896473e | 1577 | if (o->ioscheduler && switch_ioscheduler(td)) |
2e1df07d JA |
1578 | goto err; |
1579 | ||
4896473e | 1580 | if (!o->create_serialize && setup_files(td)) |
2e1df07d JA |
1581 | goto err; |
1582 | ||
1583 | if (td_io_init(td)) | |
1584 | goto err; | |
1585 | ||
1586 | if (init_random_map(td)) | |
1587 | goto err; | |
1588 | ||
ce486495 | 1589 | if (o->exec_prerun && exec_string(o, o->exec_prerun, (const char *)"prerun")) |
4896473e | 1590 | goto err; |
2e1df07d | 1591 | |
4896473e | 1592 | if (o->pre_read) { |
2e1df07d JA |
1593 | if (pre_read_files(td) < 0) |
1594 | goto err; | |
1595 | } | |
1596 | ||
aee2ab67 JA |
1597 | if (td->flags & TD_F_COMPRESS_LOG) |
1598 | tp_init(&td->tp_data); | |
1599 | ||
dc5bfbb2 JA |
1600 | fio_verify_init(td); |
1601 | ||
a9da8ab2 JA |
1602 | if ((o->io_submit_mode == IO_MODE_OFFLOAD) && |
1603 | workqueue_init(td, &td->io_wq, io_workqueue_fn, td->o.iodepth)) | |
1604 | goto err; | |
1605 | ||
2e1df07d | 1606 | fio_gettime(&td->epoch, NULL); |
44404c5a | 1607 | fio_getrusage(&td->ru_start); |
ac28d905 JA |
1608 | memcpy(&td->bw_sample_time, &td->epoch, sizeof(td->epoch)); |
1609 | memcpy(&td->iops_sample_time, &td->epoch, sizeof(td->epoch)); | |
1610 | ||
1611 | if (o->ratemin[DDIR_READ] || o->ratemin[DDIR_WRITE] || | |
1612 | o->ratemin[DDIR_TRIM]) { | |
1613 | memcpy(&td->lastrate[DDIR_READ], &td->bw_sample_time, | |
1614 | sizeof(td->bw_sample_time)); | |
1615 | memcpy(&td->lastrate[DDIR_WRITE], &td->bw_sample_time, | |
1616 | sizeof(td->bw_sample_time)); | |
1617 | memcpy(&td->lastrate[DDIR_TRIM], &td->bw_sample_time, | |
1618 | sizeof(td->bw_sample_time)); | |
1619 | } | |
1620 | ||
2e1df07d JA |
1621 | clear_state = 0; |
1622 | while (keep_running(td)) { | |
100f49f1 JA |
1623 | uint64_t verify_bytes; |
1624 | ||
2e1df07d | 1625 | fio_gettime(&td->start, NULL); |
2e1df07d JA |
1626 | memcpy(&td->tv_cache, &td->start, sizeof(td->start)); |
1627 | ||
2e1df07d | 1628 | if (clear_state) |
ac28d905 | 1629 | clear_io_state(td, 0); |
2e1df07d JA |
1630 | |
1631 | prune_io_piece_log(td); | |
1632 | ||
62167762 JC |
1633 | if (td->o.verify_only && (td_write(td) || td_rw(td))) |
1634 | verify_bytes = do_dry_run(td); | |
1635 | else | |
1636 | verify_bytes = do_io(td); | |
2e1df07d JA |
1637 | |
1638 | clear_state = 1; | |
1639 | ||
40c666c8 JA |
1640 | /* |
1641 | * Make sure we've successfully updated the rusage stats | |
1642 | * before waiting on the stat mutex. Otherwise we could have | |
1643 | * the stat thread holding stat mutex and waiting for | |
1644 | * the rusage_sem, which would never get upped because | |
1645 | * this thread is waiting for the stat mutex. | |
1646 | */ | |
1647 | check_update_rusage(td); | |
1648 | ||
e5437a07 | 1649 | fio_mutex_down(stat_mutex); |
95603b74 BF |
1650 | if (td_read(td) && td->io_bytes[DDIR_READ]) |
1651 | update_runtime(td, elapsed_us, DDIR_READ); | |
1652 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) | |
1653 | update_runtime(td, elapsed_us, DDIR_WRITE); | |
1654 | if (td_trim(td) && td->io_bytes[DDIR_TRIM]) | |
1655 | update_runtime(td, elapsed_us, DDIR_TRIM); | |
e5437a07 VT |
1656 | fio_gettime(&td->start, NULL); |
1657 | fio_mutex_up(stat_mutex); | |
2e1df07d JA |
1658 | |
1659 | if (td->error || td->terminate) | |
1660 | break; | |
1661 | ||
4896473e JA |
1662 | if (!o->do_verify || |
1663 | o->verify == VERIFY_NONE || | |
2e1df07d JA |
1664 | (td->io_ops->flags & FIO_UNIDIR)) |
1665 | continue; | |
1666 | ||
ac28d905 | 1667 | clear_io_state(td, 0); |
2e1df07d JA |
1668 | |
1669 | fio_gettime(&td->start, NULL); | |
1670 | ||
100f49f1 | 1671 | do_verify(td, verify_bytes); |
2e1df07d | 1672 | |
40c666c8 JA |
1673 | /* |
1674 | * See comment further up for why this is done here. | |
1675 | */ | |
1676 | check_update_rusage(td); | |
1677 | ||
e5437a07 | 1678 | fio_mutex_down(stat_mutex); |
95603b74 | 1679 | update_runtime(td, elapsed_us, DDIR_READ); |
e5437a07 VT |
1680 | fio_gettime(&td->start, NULL); |
1681 | fio_mutex_up(stat_mutex); | |
2e1df07d JA |
1682 | |
1683 | if (td->error || td->terminate) | |
1684 | break; | |
1685 | } | |
1686 | ||
1687 | update_rusage_stat(td); | |
2e1df07d | 1688 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
6eaf09d6 SL |
1689 | td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ]; |
1690 | td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE]; | |
1691 | td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM]; | |
2e1df07d | 1692 | |
ca09be4b | 1693 | if (td->o.verify_state_save && !(td->flags & TD_F_VSTATE_SAVED) && |
d264264a JA |
1694 | (td->o.verify != VERIFY_NONE && td_write(td))) |
1695 | verify_save_state(td->thread_number); | |
ca09be4b | 1696 | |
9a3f1100 JA |
1697 | fio_unpin_memory(td); |
1698 | ||
905e3d4f | 1699 | fio_writeout_logs(td); |
2e1df07d | 1700 | |
a9da8ab2 JA |
1701 | if (o->io_submit_mode == IO_MODE_OFFLOAD) |
1702 | workqueue_exit(&td->io_wq); | |
1703 | ||
aee2ab67 JA |
1704 | if (td->flags & TD_F_COMPRESS_LOG) |
1705 | tp_exit(&td->tp_data); | |
1706 | ||
4896473e | 1707 | if (o->exec_postrun) |
ce486495 | 1708 | exec_string(o, o->exec_postrun, (const char *)"postrun"); |
2e1df07d JA |
1709 | |
1710 | if (exitall_on_terminate) | |
1711 | fio_terminate_threads(td->groupid); | |
1712 | ||
1713 | err: | |
1714 | if (td->error) | |
1715 | log_info("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, | |
1716 | td->verror); | |
1717 | ||
4896473e | 1718 | if (o->verify_async) |
2e1df07d JA |
1719 | verify_async_exit(td); |
1720 | ||
1721 | close_and_free_files(td); | |
2e1df07d | 1722 | cleanup_io_u(td); |
32dbca2c | 1723 | close_ioengine(td); |
2e1df07d | 1724 | cgroup_shutdown(td, &cgroup_mnt); |
ca09be4b | 1725 | verify_free_state(td); |
2e1df07d | 1726 | |
b2a9e649 | 1727 | if (fio_option_is_set(o, cpumask)) { |
8a1db9a1 JA |
1728 | ret = fio_cpuset_exit(&o->cpumask); |
1729 | if (ret) | |
1730 | td_verror(td, ret, "fio_cpuset_exit"); | |
2e1df07d JA |
1731 | } |
1732 | ||
1733 | /* | |
1734 | * do this very late, it will log file closing as well | |
1735 | */ | |
4896473e | 1736 | if (o->write_iolog_file) |
2e1df07d JA |
1737 | write_iolog_close(td); |
1738 | ||
ea66e04f JA |
1739 | fio_mutex_remove(td->mutex); |
1740 | td->mutex = NULL; | |
1741 | ||
2e1df07d | 1742 | td_set_runstate(td, TD_EXITED); |
fda2cfac JA |
1743 | |
1744 | /* | |
1745 | * Do this last after setting our runstate to exited, so we | |
1746 | * know that the stat thread is signaled. | |
1747 | */ | |
1748 | check_update_rusage(td); | |
1749 | ||
e43606c2 | 1750 | return (void *) (uintptr_t) td->error; |
2e1df07d JA |
1751 | } |
1752 | ||
1753 | ||
1754 | /* | |
1755 | * We cannot pass the td data into a forked process, so attach the td and | |
1756 | * pass it to the thread worker. | |
1757 | */ | |
1758 | static int fork_main(int shmid, int offset) | |
1759 | { | |
1760 | struct thread_data *td; | |
1761 | void *data, *ret; | |
1762 | ||
c8931876 | 1763 | #if !defined(__hpux) && !defined(CONFIG_NO_SHM) |
2e1df07d JA |
1764 | data = shmat(shmid, NULL, 0); |
1765 | if (data == (void *) -1) { | |
1766 | int __err = errno; | |
1767 | ||
1768 | perror("shmat"); | |
1769 | return __err; | |
1770 | } | |
1771 | #else | |
1772 | /* | |
1773 | * HP-UX inherits shm mappings? | |
1774 | */ | |
1775 | data = threads; | |
1776 | #endif | |
1777 | ||
1778 | td = data + offset * sizeof(struct thread_data); | |
1779 | ret = thread_main(td); | |
1780 | shmdt(data); | |
e43606c2 | 1781 | return (int) (uintptr_t) ret; |
2e1df07d JA |
1782 | } |
1783 | ||
cba5460c JA |
1784 | static void dump_td_info(struct thread_data *td) |
1785 | { | |
1786 | log_err("fio: job '%s' hasn't exited in %lu seconds, it appears to " | |
1787 | "be stuck. Doing forceful exit of this job.\n", td->o.name, | |
1788 | (unsigned long) time_since_now(&td->terminate_time)); | |
1789 | } | |
1790 | ||
2e1df07d JA |
1791 | /* |
1792 | * Run over the job map and reap the threads that have exited, if any. | |
1793 | */ | |
1794 | static void reap_threads(unsigned int *nr_running, unsigned int *t_rate, | |
1795 | unsigned int *m_rate) | |
1796 | { | |
1797 | struct thread_data *td; | |
1798 | unsigned int cputhreads, realthreads, pending; | |
1799 | int i, status, ret; | |
1800 | ||
1801 | /* | |
1802 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1803 | */ | |
1804 | realthreads = pending = cputhreads = 0; | |
1805 | for_each_td(td, i) { | |
1806 | int flags = 0; | |
1807 | ||
1808 | /* | |
1809 | * ->io_ops is NULL for a thread that has closed its | |
1810 | * io engine | |
1811 | */ | |
1812 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) | |
1813 | cputhreads++; | |
1814 | else | |
1815 | realthreads++; | |
1816 | ||
1817 | if (!td->pid) { | |
1818 | pending++; | |
1819 | continue; | |
1820 | } | |
1821 | if (td->runstate == TD_REAPED) | |
1822 | continue; | |
1823 | if (td->o.use_thread) { | |
1824 | if (td->runstate == TD_EXITED) { | |
1825 | td_set_runstate(td, TD_REAPED); | |
1826 | goto reaped; | |
1827 | } | |
1828 | continue; | |
1829 | } | |
1830 | ||
1831 | flags = WNOHANG; | |
1832 | if (td->runstate == TD_EXITED) | |
1833 | flags = 0; | |
1834 | ||
1835 | /* | |
1836 | * check if someone quit or got killed in an unusual way | |
1837 | */ | |
1838 | ret = waitpid(td->pid, &status, flags); | |
1839 | if (ret < 0) { | |
1840 | if (errno == ECHILD) { | |
1841 | log_err("fio: pid=%d disappeared %d\n", | |
1842 | (int) td->pid, td->runstate); | |
a5e371a6 | 1843 | td->sig = ECHILD; |
2e1df07d JA |
1844 | td_set_runstate(td, TD_REAPED); |
1845 | goto reaped; | |
1846 | } | |
1847 | perror("waitpid"); | |
1848 | } else if (ret == td->pid) { | |
1849 | if (WIFSIGNALED(status)) { | |
1850 | int sig = WTERMSIG(status); | |
1851 | ||
36d80bc7 | 1852 | if (sig != SIGTERM && sig != SIGUSR2) |
2e1df07d JA |
1853 | log_err("fio: pid=%d, got signal=%d\n", |
1854 | (int) td->pid, sig); | |
a5e371a6 | 1855 | td->sig = sig; |
2e1df07d JA |
1856 | td_set_runstate(td, TD_REAPED); |
1857 | goto reaped; | |
1858 | } | |
1859 | if (WIFEXITED(status)) { | |
1860 | if (WEXITSTATUS(status) && !td->error) | |
1861 | td->error = WEXITSTATUS(status); | |
1862 | ||
1863 | td_set_runstate(td, TD_REAPED); | |
1864 | goto reaped; | |
1865 | } | |
1866 | } | |
1867 | ||
cba5460c JA |
1868 | /* |
1869 | * If the job is stuck, do a forceful timeout of it and | |
1870 | * move on. | |
1871 | */ | |
1872 | if (td->terminate && | |
1873 | time_since_now(&td->terminate_time) >= FIO_REAP_TIMEOUT) { | |
1874 | dump_td_info(td); | |
1875 | td_set_runstate(td, TD_REAPED); | |
1876 | goto reaped; | |
1877 | } | |
1878 | ||
2e1df07d JA |
1879 | /* |
1880 | * thread is not dead, continue | |
1881 | */ | |
1882 | pending++; | |
1883 | continue; | |
1884 | reaped: | |
1885 | (*nr_running)--; | |
342f4be4 JA |
1886 | (*m_rate) -= ddir_rw_sum(td->o.ratemin); |
1887 | (*t_rate) -= ddir_rw_sum(td->o.rate); | |
2e1df07d JA |
1888 | if (!td->pid) |
1889 | pending--; | |
1890 | ||
1891 | if (td->error) | |
1892 | exit_value++; | |
1893 | ||
1894 | done_secs += mtime_since_now(&td->epoch) / 1000; | |
4a88752a | 1895 | profile_td_exit(td); |
2e1df07d JA |
1896 | } |
1897 | ||
1898 | if (*nr_running == cputhreads && !pending && realthreads) | |
1899 | fio_terminate_threads(TERMINATE_ALL); | |
1900 | } | |
1901 | ||
e39c0676 | 1902 | static bool __check_trigger_file(void) |
ca09be4b JA |
1903 | { |
1904 | struct stat sb; | |
1905 | ||
1906 | if (!trigger_file) | |
e39c0676 | 1907 | return false; |
ca09be4b JA |
1908 | |
1909 | if (stat(trigger_file, &sb)) | |
e39c0676 | 1910 | return false; |
ca09be4b JA |
1911 | |
1912 | if (unlink(trigger_file) < 0) | |
1913 | log_err("fio: failed to unlink %s: %s\n", trigger_file, | |
1914 | strerror(errno)); | |
1915 | ||
e39c0676 | 1916 | return true; |
ca09be4b JA |
1917 | } |
1918 | ||
e39c0676 | 1919 | static bool trigger_timedout(void) |
ca09be4b JA |
1920 | { |
1921 | if (trigger_timeout) | |
1922 | return time_since_genesis() >= trigger_timeout; | |
1923 | ||
e39c0676 | 1924 | return false; |
ca09be4b JA |
1925 | } |
1926 | ||
1927 | void exec_trigger(const char *cmd) | |
1928 | { | |
1929 | int ret; | |
1930 | ||
1931 | if (!cmd) | |
1932 | return; | |
1933 | ||
1934 | ret = system(cmd); | |
1935 | if (ret == -1) | |
1936 | log_err("fio: failed executing %s trigger\n", cmd); | |
1937 | } | |
1938 | ||
1939 | void check_trigger_file(void) | |
1940 | { | |
1941 | if (__check_trigger_file() || trigger_timedout()) { | |
796fb3ce JA |
1942 | if (nr_clients) |
1943 | fio_clients_send_trigger(trigger_remote_cmd); | |
1944 | else { | |
d264264a | 1945 | verify_save_state(IO_LIST_ALL); |
ca09be4b JA |
1946 | fio_terminate_threads(TERMINATE_ALL); |
1947 | exec_trigger(trigger_cmd); | |
1948 | } | |
1949 | } | |
1950 | } | |
1951 | ||
1952 | static int fio_verify_load_state(struct thread_data *td) | |
1953 | { | |
1954 | int ret; | |
1955 | ||
1956 | if (!td->o.verify_state) | |
1957 | return 0; | |
1958 | ||
1959 | if (is_backend) { | |
1960 | void *data; | |
c3546b53 | 1961 | int ver; |
ca09be4b JA |
1962 | |
1963 | ret = fio_server_get_verify_state(td->o.name, | |
c3546b53 | 1964 | td->thread_number - 1, &data, &ver); |
ca09be4b | 1965 | if (!ret) |
c3546b53 | 1966 | verify_convert_assign_state(td, data, ver); |
ca09be4b JA |
1967 | } else |
1968 | ret = verify_load_state(td, "local"); | |
1969 | ||
1970 | return ret; | |
1971 | } | |
1972 | ||
06464907 JA |
1973 | static void do_usleep(unsigned int usecs) |
1974 | { | |
1975 | check_for_running_stats(); | |
ca09be4b | 1976 | check_trigger_file(); |
06464907 JA |
1977 | usleep(usecs); |
1978 | } | |
1979 | ||
e39c0676 | 1980 | static bool check_mount_writes(struct thread_data *td) |
e81ecca3 JA |
1981 | { |
1982 | struct fio_file *f; | |
1983 | unsigned int i; | |
1984 | ||
1985 | if (!td_write(td) || td->o.allow_mounted_write) | |
e39c0676 | 1986 | return false; |
e81ecca3 JA |
1987 | |
1988 | for_each_file(td, f, i) { | |
1989 | if (f->filetype != FIO_TYPE_BD) | |
1990 | continue; | |
1991 | if (device_is_mounted(f->file_name)) | |
1992 | goto mounted; | |
1993 | } | |
1994 | ||
e39c0676 | 1995 | return false; |
e81ecca3 JA |
1996 | mounted: |
1997 | log_err("fio: %s appears mounted, and 'allow_mounted_write' isn't set. Aborting.", f->file_name); | |
e39c0676 | 1998 | return true; |
e81ecca3 JA |
1999 | } |
2000 | ||
2e1df07d JA |
2001 | /* |
2002 | * Main function for kicking off and reaping jobs, as needed. | |
2003 | */ | |
2004 | static void run_threads(void) | |
2005 | { | |
2006 | struct thread_data *td; | |
2e1df07d | 2007 | unsigned int i, todo, nr_running, m_rate, t_rate, nr_started; |
0de5b26f | 2008 | uint64_t spent; |
2e1df07d | 2009 | |
2e1df07d JA |
2010 | if (fio_gtod_offload && fio_start_gtod_thread()) |
2011 | return; | |
334185e9 | 2012 | |
f2a2ce0e | 2013 | fio_idle_prof_init(); |
2e1df07d JA |
2014 | |
2015 | set_sig_handlers(); | |
2016 | ||
3a5f6bde JA |
2017 | nr_thread = nr_process = 0; |
2018 | for_each_td(td, i) { | |
e81ecca3 JA |
2019 | if (check_mount_writes(td)) |
2020 | return; | |
3a5f6bde JA |
2021 | if (td->o.use_thread) |
2022 | nr_thread++; | |
2023 | else | |
2024 | nr_process++; | |
2025 | } | |
2026 | ||
01cfefcc | 2027 | if (output_format & FIO_OUTPUT_NORMAL) { |
2e1df07d JA |
2028 | log_info("Starting "); |
2029 | if (nr_thread) | |
2030 | log_info("%d thread%s", nr_thread, | |
2031 | nr_thread > 1 ? "s" : ""); | |
2032 | if (nr_process) { | |
2033 | if (nr_thread) | |
2034 | log_info(" and "); | |
2035 | log_info("%d process%s", nr_process, | |
2036 | nr_process > 1 ? "es" : ""); | |
2037 | } | |
2038 | log_info("\n"); | |
e411c301 | 2039 | log_info_flush(); |
2e1df07d JA |
2040 | } |
2041 | ||
2042 | todo = thread_number; | |
2043 | nr_running = 0; | |
2044 | nr_started = 0; | |
2045 | m_rate = t_rate = 0; | |
2046 | ||
2047 | for_each_td(td, i) { | |
2048 | print_status_init(td->thread_number - 1); | |
2049 | ||
2050 | if (!td->o.create_serialize) | |
2051 | continue; | |
2052 | ||
ca09be4b JA |
2053 | if (fio_verify_load_state(td)) |
2054 | goto reap; | |
2055 | ||
2e1df07d JA |
2056 | /* |
2057 | * do file setup here so it happens sequentially, | |
2058 | * we don't want X number of threads getting their | |
2059 | * client data interspersed on disk | |
2060 | */ | |
2061 | if (setup_files(td)) { | |
ca09be4b | 2062 | reap: |
2e1df07d JA |
2063 | exit_value++; |
2064 | if (td->error) | |
2065 | log_err("fio: pid=%d, err=%d/%s\n", | |
2066 | (int) td->pid, td->error, td->verror); | |
2067 | td_set_runstate(td, TD_REAPED); | |
2068 | todo--; | |
2069 | } else { | |
2070 | struct fio_file *f; | |
2071 | unsigned int j; | |
2072 | ||
2073 | /* | |
2074 | * for sharing to work, each job must always open | |
2075 | * its own files. so close them, if we opened them | |
2076 | * for creation | |
2077 | */ | |
2078 | for_each_file(td, f, j) { | |
2079 | if (fio_file_open(f)) | |
2080 | td_io_close_file(td, f); | |
2081 | } | |
2082 | } | |
2083 | } | |
2084 | ||
f2a2ce0e HL |
2085 | /* start idle threads before io threads start to run */ |
2086 | fio_idle_prof_start(); | |
2087 | ||
2e1df07d JA |
2088 | set_genesis_time(); |
2089 | ||
2090 | while (todo) { | |
2091 | struct thread_data *map[REAL_MAX_JOBS]; | |
2092 | struct timeval this_start; | |
2093 | int this_jobs = 0, left; | |
2094 | ||
2095 | /* | |
2096 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
2097 | */ | |
2098 | for_each_td(td, i) { | |
2099 | if (td->runstate != TD_NOT_CREATED) | |
2100 | continue; | |
2101 | ||
2102 | /* | |
2103 | * never got a chance to start, killed by other | |
2104 | * thread for some reason | |
2105 | */ | |
2106 | if (td->terminate) { | |
2107 | todo--; | |
2108 | continue; | |
2109 | } | |
2110 | ||
2111 | if (td->o.start_delay) { | |
0de5b26f | 2112 | spent = utime_since_genesis(); |
2e1df07d | 2113 | |
74454ce4 | 2114 | if (td->o.start_delay > spent) |
2e1df07d JA |
2115 | continue; |
2116 | } | |
2117 | ||
2118 | if (td->o.stonewall && (nr_started || nr_running)) { | |
2119 | dprint(FD_PROCESS, "%s: stonewall wait\n", | |
2120 | td->o.name); | |
2121 | break; | |
2122 | } | |
2123 | ||
2124 | init_disk_util(td); | |
2125 | ||
c97f1ad6 JA |
2126 | td->rusage_sem = fio_mutex_init(FIO_MUTEX_LOCKED); |
2127 | td->update_rusage = 0; | |
2128 | ||
2e1df07d JA |
2129 | /* |
2130 | * Set state to created. Thread will transition | |
2131 | * to TD_INITIALIZED when it's done setting up. | |
2132 | */ | |
2133 | td_set_runstate(td, TD_CREATED); | |
2134 | map[this_jobs++] = td; | |
2135 | nr_started++; | |
2136 | ||
2137 | if (td->o.use_thread) { | |
2138 | int ret; | |
2139 | ||
2140 | dprint(FD_PROCESS, "will pthread_create\n"); | |
2141 | ret = pthread_create(&td->thread, NULL, | |
2142 | thread_main, td); | |
2143 | if (ret) { | |
2144 | log_err("pthread_create: %s\n", | |
2145 | strerror(ret)); | |
2146 | nr_started--; | |
2147 | break; | |
2148 | } | |
2149 | ret = pthread_detach(td->thread); | |
2150 | if (ret) | |
2151 | log_err("pthread_detach: %s", | |
2152 | strerror(ret)); | |
2153 | } else { | |
2154 | pid_t pid; | |
2155 | dprint(FD_PROCESS, "will fork\n"); | |
2156 | pid = fork(); | |
2157 | if (!pid) { | |
2158 | int ret = fork_main(shm_id, i); | |
2159 | ||
2160 | _exit(ret); | |
2161 | } else if (i == fio_debug_jobno) | |
2162 | *fio_debug_jobp = pid; | |
2163 | } | |
2164 | dprint(FD_MUTEX, "wait on startup_mutex\n"); | |
2165 | if (fio_mutex_down_timeout(startup_mutex, 10)) { | |
2166 | log_err("fio: job startup hung? exiting.\n"); | |
2167 | fio_terminate_threads(TERMINATE_ALL); | |
2168 | fio_abort = 1; | |
2169 | nr_started--; | |
2170 | break; | |
2171 | } | |
2172 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); | |
2173 | } | |
2174 | ||
2175 | /* | |
2176 | * Wait for the started threads to transition to | |
2177 | * TD_INITIALIZED. | |
2178 | */ | |
2179 | fio_gettime(&this_start, NULL); | |
2180 | left = this_jobs; | |
2181 | while (left && !fio_abort) { | |
2182 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) | |
2183 | break; | |
2184 | ||
06464907 | 2185 | do_usleep(100000); |
2e1df07d JA |
2186 | |
2187 | for (i = 0; i < this_jobs; i++) { | |
2188 | td = map[i]; | |
2189 | if (!td) | |
2190 | continue; | |
2191 | if (td->runstate == TD_INITIALIZED) { | |
2192 | map[i] = NULL; | |
2193 | left--; | |
2194 | } else if (td->runstate >= TD_EXITED) { | |
2195 | map[i] = NULL; | |
2196 | left--; | |
2197 | todo--; | |
2198 | nr_running++; /* work-around... */ | |
2199 | } | |
2200 | } | |
2201 | } | |
2202 | ||
2203 | if (left) { | |
4e87c37a JA |
2204 | log_err("fio: %d job%s failed to start\n", left, |
2205 | left > 1 ? "s" : ""); | |
2e1df07d JA |
2206 | for (i = 0; i < this_jobs; i++) { |
2207 | td = map[i]; | |
2208 | if (!td) | |
2209 | continue; | |
2210 | kill(td->pid, SIGTERM); | |
2211 | } | |
2212 | break; | |
2213 | } | |
2214 | ||
2215 | /* | |
2216 | * start created threads (TD_INITIALIZED -> TD_RUNNING). | |
2217 | */ | |
2218 | for_each_td(td, i) { | |
2219 | if (td->runstate != TD_INITIALIZED) | |
2220 | continue; | |
2221 | ||
2222 | if (in_ramp_time(td)) | |
2223 | td_set_runstate(td, TD_RAMP); | |
2224 | else | |
2225 | td_set_runstate(td, TD_RUNNING); | |
2226 | nr_running++; | |
2227 | nr_started--; | |
342f4be4 JA |
2228 | m_rate += ddir_rw_sum(td->o.ratemin); |
2229 | t_rate += ddir_rw_sum(td->o.rate); | |
2e1df07d JA |
2230 | todo--; |
2231 | fio_mutex_up(td->mutex); | |
2232 | } | |
2233 | ||
2234 | reap_threads(&nr_running, &t_rate, &m_rate); | |
2235 | ||
122c7725 | 2236 | if (todo) |
06464907 | 2237 | do_usleep(100000); |
2e1df07d JA |
2238 | } |
2239 | ||
2240 | while (nr_running) { | |
2241 | reap_threads(&nr_running, &t_rate, &m_rate); | |
06464907 | 2242 | do_usleep(10000); |
2e1df07d JA |
2243 | } |
2244 | ||
f2a2ce0e HL |
2245 | fio_idle_prof_stop(); |
2246 | ||
2e1df07d | 2247 | update_io_ticks(); |
2e1df07d JA |
2248 | } |
2249 | ||
5ddc6707 | 2250 | static void wait_for_helper_thread_exit(void) |
9ec7779f | 2251 | { |
8aab824f JA |
2252 | void *ret; |
2253 | ||
98b4b0a2 | 2254 | helper_exit = 1; |
5ddc6707 JA |
2255 | pthread_cond_signal(&helper_cond); |
2256 | pthread_join(helper_thread, &ret); | |
9ec7779f JA |
2257 | } |
2258 | ||
27357187 JA |
2259 | static void free_disk_util(void) |
2260 | { | |
27357187 | 2261 | disk_util_prune_entries(); |
8aab824f | 2262 | |
5ddc6707 | 2263 | pthread_cond_destroy(&helper_cond); |
27357187 JA |
2264 | } |
2265 | ||
5ddc6707 | 2266 | static void *helper_thread_main(void *data) |
2e1df07d | 2267 | { |
9ec7779f JA |
2268 | int ret = 0; |
2269 | ||
2e1df07d JA |
2270 | fio_mutex_up(startup_mutex); |
2271 | ||
8aab824f JA |
2272 | while (!ret) { |
2273 | uint64_t sec = DISK_UTIL_MSEC / 1000; | |
2274 | uint64_t nsec = (DISK_UTIL_MSEC % 1000) * 1000000; | |
2275 | struct timespec ts; | |
2276 | struct timeval tv; | |
2277 | ||
2278 | gettimeofday(&tv, NULL); | |
2279 | ts.tv_sec = tv.tv_sec + sec; | |
2280 | ts.tv_nsec = (tv.tv_usec * 1000) + nsec; | |
f893b76d | 2281 | |
823952af | 2282 | if (ts.tv_nsec >= 1000000000ULL) { |
8aab824f JA |
2283 | ts.tv_nsec -= 1000000000ULL; |
2284 | ts.tv_sec++; | |
2285 | } | |
2286 | ||
5ddc6707 | 2287 | pthread_cond_timedwait(&helper_cond, &helper_lock, &ts); |
8aab824f | 2288 | |
9ec7779f | 2289 | ret = update_io_ticks(); |
2e1df07d | 2290 | |
5ddc6707 JA |
2291 | if (helper_do_stat) { |
2292 | helper_do_stat = 0; | |
2293 | __show_running_run_stats(); | |
2294 | } | |
2295 | ||
2e1df07d JA |
2296 | if (!is_backend) |
2297 | print_thread_status(); | |
2298 | } | |
2299 | ||
2300 | return NULL; | |
2301 | } | |
2302 | ||
5ddc6707 | 2303 | static int create_helper_thread(void) |
2e1df07d JA |
2304 | { |
2305 | int ret; | |
2306 | ||
9ec7779f JA |
2307 | setup_disk_util(); |
2308 | ||
5ddc6707 JA |
2309 | pthread_cond_init(&helper_cond, NULL); |
2310 | pthread_mutex_init(&helper_lock, NULL); | |
8aab824f | 2311 | |
5ddc6707 | 2312 | ret = pthread_create(&helper_thread, NULL, helper_thread_main, NULL); |
2e1df07d | 2313 | if (ret) { |
5ddc6707 | 2314 | log_err("Can't create helper thread: %s\n", strerror(ret)); |
2e1df07d JA |
2315 | return 1; |
2316 | } | |
2317 | ||
2e1df07d JA |
2318 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
2319 | fio_mutex_down(startup_mutex); | |
2320 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); | |
2321 | return 0; | |
2322 | } | |
2323 | ||
2e1df07d JA |
2324 | int fio_backend(void) |
2325 | { | |
2326 | struct thread_data *td; | |
2327 | int i; | |
2328 | ||
2329 | if (exec_profile) { | |
2330 | if (load_profile(exec_profile)) | |
2331 | return 1; | |
2332 | free(exec_profile); | |
2333 | exec_profile = NULL; | |
2334 | } | |
2335 | if (!thread_number) | |
2336 | return 0; | |
2337 | ||
2338 | if (write_bw_log) { | |
aee2ab67 JA |
2339 | struct log_params p = { |
2340 | .log_type = IO_LOG_TYPE_BW, | |
2341 | }; | |
2342 | ||
2343 | setup_log(&agg_io_log[DDIR_READ], &p, "agg-read_bw.log"); | |
2344 | setup_log(&agg_io_log[DDIR_WRITE], &p, "agg-write_bw.log"); | |
2345 | setup_log(&agg_io_log[DDIR_TRIM], &p, "agg-trim_bw.log"); | |
2e1df07d JA |
2346 | } |
2347 | ||
521da527 | 2348 | startup_mutex = fio_mutex_init(FIO_MUTEX_LOCKED); |
2e1df07d JA |
2349 | if (startup_mutex == NULL) |
2350 | return 1; | |
2e1df07d JA |
2351 | |
2352 | set_genesis_time(); | |
cef9175e | 2353 | stat_init(); |
5ddc6707 | 2354 | create_helper_thread(); |
2e1df07d JA |
2355 | |
2356 | cgroup_list = smalloc(sizeof(*cgroup_list)); | |
2357 | INIT_FLIST_HEAD(cgroup_list); | |
2358 | ||
2359 | run_threads(); | |
2360 | ||
5ddc6707 | 2361 | wait_for_helper_thread_exit(); |
8aab824f | 2362 | |
2e1df07d | 2363 | if (!fio_abort) { |
83f7b64e | 2364 | __show_run_stats(); |
2e1df07d | 2365 | if (write_bw_log) { |
cb7e0ace JA |
2366 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
2367 | struct io_log *log = agg_io_log[i]; | |
2368 | ||
3a5db920 | 2369 | flush_log(log, 0); |
518dac09 | 2370 | free_log(log); |
cb7e0ace | 2371 | } |
2e1df07d JA |
2372 | } |
2373 | } | |
2374 | ||
fda2cfac | 2375 | for_each_td(td, i) { |
2e1df07d | 2376 | fio_options_free(td); |
8049adc1 JA |
2377 | if (td->rusage_sem) { |
2378 | fio_mutex_remove(td->rusage_sem); | |
2379 | td->rusage_sem = NULL; | |
2380 | } | |
fda2cfac | 2381 | } |
2e1df07d | 2382 | |
a462baef | 2383 | free_disk_util(); |
2e1df07d JA |
2384 | cgroup_kill(cgroup_list); |
2385 | sfree(cgroup_list); | |
2386 | sfree(cgroup_mnt); | |
2387 | ||
2388 | fio_mutex_remove(startup_mutex); | |
cef9175e | 2389 | stat_exit(); |
2e1df07d JA |
2390 | return exit_value; |
2391 | } |