Commit | Line | Data |
---|---|---|
ebac4655 JA |
1 | /* |
2 | * fio - the flexible io tester | |
3 | * | |
4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> | |
aae22ca7 | 5 | * Copyright (C) 2006 Jens Axboe <axboe@kernel.dk> |
ebac4655 | 6 | * |
8e9fe637 JA |
7 | * The license below covers all files distributed with fio unless otherwise |
8 | * noted in the file itself. | |
9 | * | |
ebac4655 | 10 | * This program is free software; you can redistribute it and/or modify |
8e9fe637 JA |
11 | * it under the terms of the GNU General Public License version 2 as |
12 | * published by the Free Software Foundation. | |
ebac4655 JA |
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 | */ | |
ebac4655 JA |
24 | #include <unistd.h> |
25 | #include <fcntl.h> | |
26 | #include <string.h> | |
ebac4655 JA |
27 | #include <signal.h> |
28 | #include <time.h> | |
dbe1125e | 29 | #include <locale.h> |
36167d82 | 30 | #include <assert.h> |
ebac4655 JA |
31 | #include <sys/stat.h> |
32 | #include <sys/wait.h> | |
33 | #include <sys/ipc.h> | |
34 | #include <sys/shm.h> | |
ebac4655 JA |
35 | #include <sys/mman.h> |
36 | ||
37 | #include "fio.h" | |
210f43b3 | 38 | #include "hash.h" |
2e5cdb11 | 39 | #include "smalloc.h" |
ebac4655 | 40 | |
cfc99db7 JA |
41 | unsigned long page_mask; |
42 | unsigned long page_size; | |
29d610e1 JA |
43 | #define ALIGN(buf) \ |
44 | (char *) (((unsigned long) (buf) + page_mask) & ~page_mask) | |
ebac4655 JA |
45 | |
46 | int groupid = 0; | |
47 | int thread_number = 0; | |
9cedf167 JA |
48 | int nr_process = 0; |
49 | int nr_thread = 0; | |
ebac4655 | 50 | int shm_id = 0; |
53cdc686 | 51 | int temp_stall_ts; |
d3eeeabc | 52 | unsigned long done_secs = 0; |
ebac4655 | 53 | |
cdd18ad8 | 54 | static struct fio_mutex *startup_mutex; |
d2bbb8d9 | 55 | static struct fio_mutex *writeout_mutex; |
6ce15a32 | 56 | static volatile int fio_abort; |
437c9b71 | 57 | static int exit_value; |
ccb0fa24 | 58 | static struct itimerval itimer; |
be4ecfdf | 59 | static pthread_t gtod_thread; |
ebac4655 | 60 | |
bb3884d8 JA |
61 | struct io_log *agg_io_log[2]; |
62 | ||
ebac4655 | 63 | #define TERMINATE_ALL (-1) |
75154845 | 64 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 | 65 | |
b29ee5b3 | 66 | void td_set_runstate(struct thread_data *td, int runstate) |
6ce15a32 | 67 | { |
d8fab1b6 JA |
68 | if (td->runstate == runstate) |
69 | return; | |
70 | ||
5921e80c JA |
71 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, |
72 | td->runstate, runstate); | |
6ce15a32 JA |
73 | td->runstate = runstate; |
74 | } | |
75 | ||
390c40e2 | 76 | static void terminate_threads(int group_id) |
ebac4655 | 77 | { |
34572e28 | 78 | struct thread_data *td; |
ebac4655 JA |
79 | int i; |
80 | ||
6f88bcb0 JA |
81 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); |
82 | ||
34572e28 | 83 | for_each_td(td, i) { |
ebac4655 | 84 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
6f88bcb0 | 85 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", |
5921e80c | 86 | td->o.name, (int) td->pid); |
ad830ed7 JA |
87 | td->terminate = 1; |
88 | td->o.start_delay = 0; | |
89 | ||
7a93ab19 JA |
90 | /* |
91 | * if the thread is running, just let it exit | |
92 | */ | |
93 | if (td->runstate < TD_RUNNING) | |
c1302d44 | 94 | kill(td->pid, SIGQUIT); |
f63f7f3b JA |
95 | else { |
96 | struct ioengine_ops *ops = td->io_ops; | |
97 | ||
98 | if (ops && (ops->flags & FIO_SIGQUIT)) | |
99 | kill(td->pid, SIGQUIT); | |
100 | } | |
ebac4655 JA |
101 | } |
102 | } | |
103 | } | |
104 | ||
ccb0fa24 JA |
105 | static void status_timer_arm(void) |
106 | { | |
107 | itimer.it_value.tv_sec = 0; | |
108 | itimer.it_value.tv_usec = DISK_UTIL_MSEC * 1000; | |
109 | setitimer(ITIMER_REAL, &itimer, NULL); | |
110 | } | |
111 | ||
02444ad1 | 112 | static void sig_alrm(int fio_unused sig) |
ebac4655 | 113 | { |
697a606c | 114 | if (threads) { |
5ec10eaa | 115 | update_io_ticks(); |
5ec10eaa | 116 | print_thread_status(); |
ccb0fa24 | 117 | status_timer_arm(); |
697a606c JA |
118 | } |
119 | } | |
120 | ||
5f8f9726 JA |
121 | /* |
122 | * Happens on thread runs with ctrl-c, ignore our own SIGQUIT | |
123 | */ | |
124 | static void sig_quit(int sig) | |
125 | { | |
126 | } | |
127 | ||
697a606c JA |
128 | static void sig_int(int sig) |
129 | { | |
130 | if (threads) { | |
5ec10eaa JA |
131 | printf("\nfio: terminating on signal %d\n", sig); |
132 | fflush(stdout); | |
133 | terminate_threads(TERMINATE_ALL); | |
ebac4655 JA |
134 | } |
135 | } | |
136 | ||
02444ad1 | 137 | static void sig_ill(int fio_unused sig) |
de79c915 JA |
138 | { |
139 | if (!threads) | |
140 | return; | |
141 | ||
142 | log_err("fio: illegal instruction. your cpu does not support " | |
143 | "the sse4.2 instruction for crc32c\n"); | |
144 | terminate_threads(TERMINATE_ALL); | |
145 | exit(4); | |
146 | } | |
147 | ||
697a606c JA |
148 | static void set_sig_handlers(void) |
149 | { | |
150 | struct sigaction act; | |
151 | ||
152 | memset(&act, 0, sizeof(act)); | |
153 | act.sa_handler = sig_alrm; | |
154 | act.sa_flags = SA_RESTART; | |
155 | sigaction(SIGALRM, &act, NULL); | |
156 | ||
157 | memset(&act, 0, sizeof(act)); | |
158 | act.sa_handler = sig_int; | |
159 | act.sa_flags = SA_RESTART; | |
160 | sigaction(SIGINT, &act, NULL); | |
de79c915 JA |
161 | |
162 | memset(&act, 0, sizeof(act)); | |
163 | act.sa_handler = sig_ill; | |
164 | act.sa_flags = SA_RESTART; | |
165 | sigaction(SIGILL, &act, NULL); | |
5f8f9726 JA |
166 | |
167 | memset(&act, 0, sizeof(act)); | |
168 | act.sa_handler = sig_quit; | |
169 | act.sa_flags = SA_RESTART; | |
170 | sigaction(SIGQUIT, &act, NULL); | |
697a606c JA |
171 | } |
172 | ||
993bf48b JA |
173 | static inline int should_check_rate(struct thread_data *td) |
174 | { | |
e235d5f8 JA |
175 | struct thread_options *o = &td->o; |
176 | ||
993bf48b | 177 | /* |
e235d5f8 | 178 | * If some rate setting was given, we need to check it |
993bf48b | 179 | */ |
e235d5f8 JA |
180 | if (o->rate || o->ratemin || o->rate_iops || o->rate_iops_min) |
181 | return 1; | |
993bf48b | 182 | |
e235d5f8 | 183 | return 0; |
993bf48b JA |
184 | } |
185 | ||
906c8d75 JA |
186 | /* |
187 | * Check if we are above the minimum rate given. | |
188 | */ | |
ebac4655 JA |
189 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
190 | { | |
0904200b | 191 | unsigned long long bytes = 0; |
4e991c23 | 192 | unsigned long iops = 0; |
ebac4655 JA |
193 | unsigned long spent; |
194 | unsigned long rate; | |
ebac4655 JA |
195 | |
196 | /* | |
197 | * allow a 2 second settle period in the beginning | |
198 | */ | |
199 | if (mtime_since(&td->start, now) < 2000) | |
200 | return 0; | |
201 | ||
4e991c23 JA |
202 | if (td_read(td)) { |
203 | iops += td->io_blocks[DDIR_READ]; | |
0904200b | 204 | bytes += td->this_io_bytes[DDIR_READ]; |
4e991c23 JA |
205 | } |
206 | if (td_write(td)) { | |
207 | iops += td->io_blocks[DDIR_WRITE]; | |
0904200b | 208 | bytes += td->this_io_bytes[DDIR_WRITE]; |
4e991c23 | 209 | } |
0904200b | 210 | |
ebac4655 JA |
211 | /* |
212 | * if rate blocks is set, sample is running | |
213 | */ | |
4e991c23 | 214 | if (td->rate_bytes || td->rate_blocks) { |
ebac4655 | 215 | spent = mtime_since(&td->lastrate, now); |
2dc1bbeb | 216 | if (spent < td->o.ratecycle) |
ebac4655 JA |
217 | return 0; |
218 | ||
2dc1bbeb | 219 | if (td->o.rate) { |
4e991c23 JA |
220 | /* |
221 | * check bandwidth specified rate | |
222 | */ | |
223 | if (bytes < td->rate_bytes) { | |
5ec10eaa JA |
224 | log_err("%s: min rate %u not met\n", td->o.name, |
225 | td->o.ratemin); | |
4e991c23 JA |
226 | return 1; |
227 | } else { | |
228 | rate = (bytes - td->rate_bytes) / spent; | |
5ec10eaa JA |
229 | if (rate < td->o.ratemin || |
230 | bytes < td->rate_bytes) { | |
231 | log_err("%s: min rate %u not met, got" | |
232 | " %luKiB/sec\n", td->o.name, | |
233 | td->o.ratemin, rate); | |
4e991c23 JA |
234 | return 1; |
235 | } | |
236 | } | |
413dd459 | 237 | } else { |
4e991c23 JA |
238 | /* |
239 | * checks iops specified rate | |
240 | */ | |
2dc1bbeb | 241 | if (iops < td->o.rate_iops) { |
5ec10eaa JA |
242 | log_err("%s: min iops rate %u not met\n", |
243 | td->o.name, td->o.rate_iops); | |
413dd459 | 244 | return 1; |
4e991c23 JA |
245 | } else { |
246 | rate = (iops - td->rate_blocks) / spent; | |
5ec10eaa JA |
247 | if (rate < td->o.rate_iops_min || |
248 | iops < td->rate_blocks) { | |
249 | log_err("%s: min iops rate %u not met," | |
250 | " got %lu\n", td->o.name, | |
251 | td->o.rate_iops_min, | |
252 | rate); | |
4e991c23 | 253 | } |
413dd459 | 254 | } |
ebac4655 JA |
255 | } |
256 | } | |
257 | ||
0904200b | 258 | td->rate_bytes = bytes; |
4e991c23 | 259 | td->rate_blocks = iops; |
ebac4655 JA |
260 | memcpy(&td->lastrate, now, sizeof(*now)); |
261 | return 0; | |
262 | } | |
263 | ||
264 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
265 | { | |
2dc1bbeb | 266 | if (!td->o.timeout) |
ebac4655 | 267 | return 0; |
2dc1bbeb | 268 | if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) |
ebac4655 JA |
269 | return 1; |
270 | ||
271 | return 0; | |
272 | } | |
273 | ||
906c8d75 JA |
274 | /* |
275 | * When job exits, we can cancel the in-flight IO if we are using async | |
276 | * io. Attempt to do so. | |
277 | */ | |
ebac4655 JA |
278 | static void cleanup_pending_aio(struct thread_data *td) |
279 | { | |
01743ee1 | 280 | struct flist_head *entry, *n; |
ebac4655 JA |
281 | struct io_u *io_u; |
282 | int r; | |
283 | ||
284 | /* | |
285 | * get immediately available events, if any | |
286 | */ | |
d7762cf8 | 287 | r = io_u_queued_complete(td, 0); |
b2fdda43 JA |
288 | if (r < 0) |
289 | return; | |
ebac4655 JA |
290 | |
291 | /* | |
292 | * now cancel remaining active events | |
293 | */ | |
2866c82d | 294 | if (td->io_ops->cancel) { |
01743ee1 JA |
295 | flist_for_each_safe(entry, n, &td->io_u_busylist) { |
296 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 297 | |
0c6e7517 JA |
298 | /* |
299 | * if the io_u isn't in flight, then that generally | |
300 | * means someone leaked an io_u. complain but fix | |
301 | * it up, so we don't stall here. | |
302 | */ | |
303 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
304 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 305 | put_io_u(td, io_u); |
0c6e7517 JA |
306 | } else { |
307 | r = td->io_ops->cancel(td, io_u); | |
308 | if (!r) | |
309 | put_io_u(td, io_u); | |
310 | } | |
ebac4655 JA |
311 | } |
312 | } | |
313 | ||
97601024 | 314 | if (td->cur_depth) |
d7762cf8 | 315 | r = io_u_queued_complete(td, td->cur_depth); |
ebac4655 JA |
316 | } |
317 | ||
858a3d47 JA |
318 | /* |
319 | * Helper to handle the final sync of a file. Works just like the normal | |
320 | * io path, just does everything sync. | |
321 | */ | |
322 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
323 | { | |
324 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
325 | int ret; |
326 | ||
327 | if (!io_u) | |
328 | return 1; | |
329 | ||
330 | io_u->ddir = DDIR_SYNC; | |
331 | io_u->file = f; | |
332 | ||
333 | if (td_io_prep(td, io_u)) { | |
334 | put_io_u(td, io_u); | |
335 | return 1; | |
336 | } | |
337 | ||
755200a3 | 338 | requeue: |
858a3d47 | 339 | ret = td_io_queue(td, io_u); |
36167d82 | 340 | if (ret < 0) { |
e1161c32 | 341 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 342 | put_io_u(td, io_u); |
858a3d47 | 343 | return 1; |
36167d82 | 344 | } else if (ret == FIO_Q_QUEUED) { |
d7762cf8 | 345 | if (io_u_queued_complete(td, 1) < 0) |
36167d82 | 346 | return 1; |
36167d82 JA |
347 | } else if (ret == FIO_Q_COMPLETED) { |
348 | if (io_u->error) { | |
e1161c32 | 349 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
350 | return 1; |
351 | } | |
858a3d47 | 352 | |
d7762cf8 | 353 | if (io_u_sync_complete(td, io_u) < 0) |
b2fdda43 | 354 | return 1; |
755200a3 JA |
355 | } else if (ret == FIO_Q_BUSY) { |
356 | if (td_io_commit(td)) | |
357 | return 1; | |
358 | goto requeue; | |
858a3d47 JA |
359 | } |
360 | ||
361 | return 0; | |
362 | } | |
363 | ||
993bf48b JA |
364 | static inline void update_tv_cache(struct thread_data *td) |
365 | { | |
366 | if ((++td->tv_cache_nr & td->tv_cache_mask) == td->tv_cache_mask) | |
367 | fio_gettime(&td->tv_cache, NULL); | |
368 | } | |
369 | ||
906c8d75 | 370 | /* |
34403fb1 | 371 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
372 | * reads the blocks back in, and checks the crc/md5 of the data. |
373 | */ | |
1e97cce9 | 374 | static void do_verify(struct thread_data *td) |
ebac4655 | 375 | { |
53cdc686 | 376 | struct fio_file *f; |
36167d82 | 377 | struct io_u *io_u; |
af52b345 JA |
378 | int ret, min_events; |
379 | unsigned int i; | |
e5b401d4 JA |
380 | |
381 | /* | |
382 | * sync io first and invalidate cache, to make sure we really | |
383 | * read from disk. | |
384 | */ | |
385 | for_each_file(td, f, i) { | |
3d7b485f JA |
386 | if (!(f->flags & FIO_FILE_OPEN)) |
387 | continue; | |
b2fdda43 JA |
388 | if (fio_io_sync(td, f)) |
389 | break; | |
390 | if (file_invalidate_cache(td, f)) | |
391 | break; | |
e5b401d4 | 392 | } |
ebac4655 | 393 | |
b2fdda43 JA |
394 | if (td->error) |
395 | return; | |
396 | ||
ebac4655 JA |
397 | td_set_runstate(td, TD_VERIFYING); |
398 | ||
36167d82 JA |
399 | io_u = NULL; |
400 | while (!td->terminate) { | |
4950421a | 401 | int ret2, full; |
5451792e | 402 | |
ebac4655 JA |
403 | io_u = __get_io_u(td); |
404 | if (!io_u) | |
405 | break; | |
406 | ||
993bf48b JA |
407 | update_tv_cache(td); |
408 | ||
409 | if (runtime_exceeded(td, &td->tv_cache)) { | |
069c2918 | 410 | put_io_u(td, io_u); |
90a87d4b | 411 | td->terminate = 1; |
02bcaa8c | 412 | break; |
069c2918 | 413 | } |
02bcaa8c | 414 | |
069c2918 JA |
415 | if (get_next_verify(td, io_u)) { |
416 | put_io_u(td, io_u); | |
ebac4655 | 417 | break; |
069c2918 | 418 | } |
ebac4655 | 419 | |
069c2918 JA |
420 | if (td_io_prep(td, io_u)) { |
421 | put_io_u(td, io_u); | |
53cdc686 | 422 | break; |
069c2918 | 423 | } |
d7762cf8 JA |
424 | |
425 | io_u->end_io = verify_io_u; | |
53cdc686 | 426 | |
11786802 | 427 | ret = td_io_queue(td, io_u); |
36167d82 JA |
428 | switch (ret) { |
429 | case FIO_Q_COMPLETED: | |
430 | if (io_u->error) | |
22819ec2 | 431 | ret = -io_u->error; |
9e9d164e | 432 | else if (io_u->resid) { |
36167d82 | 433 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 434 | struct fio_file *f = io_u->file; |
ebac4655 | 435 | |
9e9d164e JA |
436 | /* |
437 | * zero read, fail | |
438 | */ | |
439 | if (!bytes) { | |
41d9f0fd | 440 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
441 | put_io_u(td, io_u); |
442 | break; | |
443 | } | |
8400d9b2 | 444 | |
36167d82 JA |
445 | io_u->xfer_buflen = io_u->resid; |
446 | io_u->xfer_buf += bytes; | |
8400d9b2 JA |
447 | io_u->offset += bytes; |
448 | ||
30061b97 JA |
449 | td->ts.short_io_u[io_u->ddir]++; |
450 | ||
d460eb31 | 451 | if (io_u->offset == f->real_file_size) |
8400d9b2 JA |
452 | goto sync_done; |
453 | ||
11786802 JA |
454 | requeue_io_u(td, &io_u); |
455 | } else { | |
8400d9b2 | 456 | sync_done: |
11786802 JA |
457 | ret = io_u_sync_complete(td, io_u); |
458 | if (ret < 0) | |
459 | break; | |
36167d82 | 460 | } |
36167d82 JA |
461 | continue; |
462 | case FIO_Q_QUEUED: | |
463 | break; | |
755200a3 JA |
464 | case FIO_Q_BUSY: |
465 | requeue_io_u(td, &io_u); | |
5451792e JA |
466 | ret2 = td_io_commit(td); |
467 | if (ret2 < 0) | |
468 | ret = ret2; | |
755200a3 | 469 | break; |
36167d82 JA |
470 | default: |
471 | assert(ret < 0); | |
e1161c32 | 472 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
473 | break; |
474 | } | |
475 | ||
99784632 | 476 | if (ret < 0 || td->error) |
3af6ef39 JA |
477 | break; |
478 | ||
ebac4655 | 479 | /* |
3af6ef39 JA |
480 | * if we can queue more, do so. but check if there are |
481 | * completed io_u's first. | |
ebac4655 | 482 | */ |
4950421a JA |
483 | full = queue_full(td) || ret == FIO_Q_BUSY; |
484 | if (full || !td->o.iodepth_batch_complete) { | |
485 | min_events = td->o.iodepth_batch_complete; | |
486 | if (full && !min_events) | |
838bc709 | 487 | min_events = 1; |
e916b390 | 488 | |
4950421a JA |
489 | do { |
490 | /* | |
491 | * Reap required number of io units, if any, | |
492 | * and do the verification on them through | |
493 | * the callback handler | |
494 | */ | |
495 | if (io_u_queued_complete(td, min_events) < 0) { | |
496 | ret = -1; | |
497 | break; | |
498 | } | |
499 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
500 | } | |
501 | if (ret < 0) | |
ebac4655 | 502 | break; |
36167d82 | 503 | } |
ebac4655 | 504 | |
c01c0395 JA |
505 | if (!td->error) { |
506 | min_events = td->cur_depth; | |
507 | ||
508 | if (min_events) | |
509 | ret = io_u_queued_complete(td, min_events); | |
510 | } else | |
ebac4655 JA |
511 | cleanup_pending_aio(td); |
512 | ||
513 | td_set_runstate(td, TD_RUNNING); | |
514 | } | |
515 | ||
32cd46a0 | 516 | /* |
906c8d75 | 517 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
518 | * and reaps them, checking for rate and errors along the way. |
519 | */ | |
ebac4655 JA |
520 | static void do_io(struct thread_data *td) |
521 | { | |
ebac4655 | 522 | unsigned long usec; |
af52b345 JA |
523 | unsigned int i; |
524 | int ret = 0; | |
ebac4655 | 525 | |
b29ee5b3 JA |
526 | if (in_ramp_time(td)) |
527 | td_set_runstate(td, TD_RAMP); | |
528 | else | |
529 | td_set_runstate(td, TD_RUNNING); | |
5853e5a8 | 530 | |
7bb48f84 | 531 | while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) { |
97601024 JA |
532 | struct timeval comp_time; |
533 | long bytes_done = 0; | |
84585003 | 534 | int min_evts = 0; |
ebac4655 | 535 | struct io_u *io_u; |
4950421a | 536 | int ret2, full; |
ebac4655 JA |
537 | |
538 | if (td->terminate) | |
539 | break; | |
540 | ||
3d7c391d | 541 | io_u = get_io_u(td); |
ebac4655 JA |
542 | if (!io_u) |
543 | break; | |
544 | ||
993bf48b | 545 | update_tv_cache(td); |
97601024 | 546 | |
993bf48b | 547 | if (runtime_exceeded(td, &td->tv_cache)) { |
97601024 | 548 | put_io_u(td, io_u); |
90a87d4b | 549 | td->terminate = 1; |
97601024 JA |
550 | break; |
551 | } | |
36167d82 | 552 | |
b67740d3 JA |
553 | /* |
554 | * Add verification end_io handler, if asked to verify | |
555 | * a previously written file. | |
556 | */ | |
cc3fc855 | 557 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ) { |
b67740d3 | 558 | io_u->end_io = verify_io_u; |
d8fab1b6 | 559 | td_set_runstate(td, TD_VERIFYING); |
b29ee5b3 JA |
560 | } else if (in_ramp_time(td)) |
561 | td_set_runstate(td, TD_RAMP); | |
562 | else | |
d8fab1b6 | 563 | td_set_runstate(td, TD_RUNNING); |
b67740d3 | 564 | |
11786802 | 565 | ret = td_io_queue(td, io_u); |
36167d82 JA |
566 | switch (ret) { |
567 | case FIO_Q_COMPLETED: | |
5451792e JA |
568 | if (io_u->error) |
569 | ret = -io_u->error; | |
9e9d164e | 570 | else if (io_u->resid) { |
36167d82 | 571 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 572 | struct fio_file *f = io_u->file; |
36167d82 | 573 | |
9e9d164e JA |
574 | /* |
575 | * zero read, fail | |
576 | */ | |
577 | if (!bytes) { | |
41d9f0fd | 578 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
579 | put_io_u(td, io_u); |
580 | break; | |
581 | } | |
582 | ||
cec6b55d | 583 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 584 | io_u->xfer_buf += bytes; |
5a7c5680 JA |
585 | io_u->offset += bytes; |
586 | ||
30061b97 JA |
587 | td->ts.short_io_u[io_u->ddir]++; |
588 | ||
d460eb31 | 589 | if (io_u->offset == f->real_file_size) |
5a7c5680 JA |
590 | goto sync_done; |
591 | ||
11786802 JA |
592 | requeue_io_u(td, &io_u); |
593 | } else { | |
5a7c5680 | 594 | sync_done: |
993bf48b JA |
595 | if (should_check_rate(td)) |
596 | fio_gettime(&comp_time, NULL); | |
597 | ||
11786802 JA |
598 | bytes_done = io_u_sync_complete(td, io_u); |
599 | if (bytes_done < 0) | |
600 | ret = bytes_done; | |
cec6b55d | 601 | } |
36167d82 JA |
602 | break; |
603 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
604 | /* |
605 | * if the engine doesn't have a commit hook, | |
606 | * the io_u is really queued. if it does have such | |
607 | * a hook, it has to call io_u_queued() itself. | |
608 | */ | |
609 | if (td->io_ops->commit == NULL) | |
610 | io_u_queued(td, io_u); | |
36167d82 | 611 | break; |
755200a3 JA |
612 | case FIO_Q_BUSY: |
613 | requeue_io_u(td, &io_u); | |
5451792e JA |
614 | ret2 = td_io_commit(td); |
615 | if (ret2 < 0) | |
616 | ret = ret2; | |
755200a3 | 617 | break; |
36167d82 JA |
618 | default: |
619 | assert(ret < 0); | |
620 | put_io_u(td, io_u); | |
621 | break; | |
ebac4655 JA |
622 | } |
623 | ||
99784632 | 624 | if (ret < 0 || td->error) |
36167d82 JA |
625 | break; |
626 | ||
97601024 JA |
627 | /* |
628 | * See if we need to complete some commands | |
629 | */ | |
4950421a JA |
630 | full = queue_full(td) || ret == FIO_Q_BUSY; |
631 | if (full || !td->o.iodepth_batch_complete) { | |
632 | min_evts = td->o.iodepth_batch_complete; | |
633 | if (full && !min_evts) | |
36167d82 | 634 | min_evts = 1; |
4950421a | 635 | |
993bf48b JA |
636 | if (should_check_rate(td)) |
637 | fio_gettime(&comp_time, NULL); | |
4950421a JA |
638 | |
639 | do { | |
640 | ret = io_u_queued_complete(td, min_evts); | |
641 | if (ret <= 0) | |
642 | break; | |
643 | ||
644 | bytes_done += ret; | |
645 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
ebac4655 JA |
646 | } |
647 | ||
4950421a JA |
648 | if (ret < 0) |
649 | break; | |
97601024 JA |
650 | if (!bytes_done) |
651 | continue; | |
652 | ||
ebac4655 JA |
653 | /* |
654 | * the rate is batched for now, it should work for batches | |
655 | * of completions except the very first one which may look | |
656 | * a little bursty | |
657 | */ | |
993bf48b JA |
658 | if (!in_ramp_time(td) && should_check_rate(td)) { |
659 | usec = utime_since(&td->tv_cache, &comp_time); | |
ebac4655 | 660 | |
721938ae | 661 | rate_throttle(td, usec, bytes_done); |
ebac4655 | 662 | |
721938ae JA |
663 | if (check_min_rate(td, &comp_time)) { |
664 | if (exitall_on_terminate) | |
665 | terminate_threads(td->groupid); | |
666 | td_verror(td, EIO, "check_min_rate"); | |
667 | break; | |
668 | } | |
ebac4655 JA |
669 | } |
670 | ||
2dc1bbeb | 671 | if (td->o.thinktime) { |
9c1f7434 JA |
672 | unsigned long long b; |
673 | ||
674 | b = td->io_blocks[0] + td->io_blocks[1]; | |
2dc1bbeb | 675 | if (!(b % td->o.thinktime_blocks)) { |
48097d5c JA |
676 | int left; |
677 | ||
2dc1bbeb | 678 | if (td->o.thinktime_spin) |
6dd6f2cd | 679 | usec_spin(td->o.thinktime_spin); |
48097d5c | 680 | |
2dc1bbeb | 681 | left = td->o.thinktime - td->o.thinktime_spin; |
48097d5c JA |
682 | if (left) |
683 | usec_sleep(td, left); | |
684 | } | |
9c1f7434 | 685 | } |
ebac4655 JA |
686 | } |
687 | ||
aa31f1f1 SL |
688 | if (td->o.fill_device && td->error == ENOSPC) { |
689 | td->error = 0; | |
690 | td->terminate = 1; | |
691 | } | |
4d2413c6 | 692 | if (!td->error) { |
3d7c391d JA |
693 | struct fio_file *f; |
694 | ||
c01c0395 JA |
695 | i = td->cur_depth; |
696 | if (i) | |
697 | ret = io_u_queued_complete(td, i); | |
ebac4655 | 698 | |
2dc1bbeb | 699 | if (should_fsync(td) && td->o.end_fsync) { |
84585003 | 700 | td_set_runstate(td, TD_FSYNCING); |
3d7b485f JA |
701 | |
702 | for_each_file(td, f, i) { | |
703 | if (!(f->flags & FIO_FILE_OPEN)) | |
704 | continue; | |
858a3d47 | 705 | fio_io_sync(td, f); |
3d7b485f | 706 | } |
84585003 | 707 | } |
c01c0395 JA |
708 | } else |
709 | cleanup_pending_aio(td); | |
2ba1c290 JA |
710 | |
711 | /* | |
712 | * stop job if we failed doing any IO | |
713 | */ | |
714 | if ((td->this_io_bytes[0] + td->this_io_bytes[1]) == 0) | |
715 | td->done = 1; | |
ebac4655 JA |
716 | } |
717 | ||
ebac4655 JA |
718 | static void cleanup_io_u(struct thread_data *td) |
719 | { | |
01743ee1 | 720 | struct flist_head *entry, *n; |
ebac4655 JA |
721 | struct io_u *io_u; |
722 | ||
01743ee1 JA |
723 | flist_for_each_safe(entry, n, &td->io_u_freelist) { |
724 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 725 | |
01743ee1 | 726 | flist_del(&io_u->list); |
ebac4655 JA |
727 | free(io_u); |
728 | } | |
729 | ||
2f9ade3c | 730 | free_io_mem(td); |
ebac4655 JA |
731 | } |
732 | ||
733 | static int init_io_u(struct thread_data *td) | |
734 | { | |
735 | struct io_u *io_u; | |
a00735e6 | 736 | unsigned int max_bs; |
eb7ccf38 | 737 | int cl_align, i, max_units; |
ebac4655 JA |
738 | char *p; |
739 | ||
1e3c09af | 740 | max_units = td->o.iodepth; |
2dc1bbeb | 741 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
5ec10eaa JA |
742 | td->orig_buffer_size = (unsigned long long) max_bs |
743 | * (unsigned long long) max_units; | |
744 | ||
745 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { | |
746 | unsigned long bs; | |
74b025b0 | 747 | |
5ec10eaa JA |
748 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; |
749 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); | |
750 | } | |
ebac4655 | 751 | |
c3990645 JA |
752 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { |
753 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
754 | return 1; | |
755 | } | |
756 | ||
2f9ade3c JA |
757 | if (allocate_io_mem(td)) |
758 | return 1; | |
ebac4655 | 759 | |
b3f378e9 JA |
760 | if (td->o.odirect) |
761 | p = ALIGN(td->orig_buffer); | |
762 | else | |
763 | p = td->orig_buffer; | |
764 | ||
eb7ccf38 JA |
765 | cl_align = os_cache_line_size(); |
766 | ||
ebac4655 | 767 | for (i = 0; i < max_units; i++) { |
eb7ccf38 JA |
768 | void *ptr; |
769 | ||
db1cd90b JA |
770 | if (td->terminate) |
771 | return 1; | |
eb7ccf38 JA |
772 | |
773 | if (posix_memalign(&ptr, cl_align, sizeof(*io_u))) { | |
774 | log_err("fio: posix_memalign=%s\n", strerror(errno)); | |
775 | break; | |
776 | } | |
777 | ||
778 | io_u = ptr; | |
ebac4655 | 779 | memset(io_u, 0, sizeof(*io_u)); |
01743ee1 | 780 | INIT_FLIST_HEAD(&io_u->list); |
ebac4655 | 781 | |
b4c5e1ac JA |
782 | if (!(td->io_ops->flags & FIO_NOIO)) { |
783 | io_u->buf = p + max_bs * i; | |
e9459e5a | 784 | |
5973cafb JA |
785 | if (td_write(td) && !td->o.refill_buffers) |
786 | io_u_fill_buffer(td, io_u, max_bs); | |
b4c5e1ac | 787 | } |
6b9cea23 | 788 | |
b1ff3403 | 789 | io_u->index = i; |
0c6e7517 | 790 | io_u->flags = IO_U_F_FREE; |
01743ee1 | 791 | flist_add(&io_u->list, &td->io_u_freelist); |
ebac4655 JA |
792 | } |
793 | ||
794 | return 0; | |
795 | } | |
796 | ||
da86774e JA |
797 | static int switch_ioscheduler(struct thread_data *td) |
798 | { | |
799 | char tmp[256], tmp2[128]; | |
800 | FILE *f; | |
801 | int ret; | |
802 | ||
ba0fbe10 | 803 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
804 | return 0; |
805 | ||
da86774e JA |
806 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
807 | ||
808 | f = fopen(tmp, "r+"); | |
809 | if (!f) { | |
cbf5c1d7 | 810 | if (errno == ENOENT) { |
5ec10eaa JA |
811 | log_err("fio: os or kernel doesn't support IO scheduler" |
812 | " switching\n"); | |
cbf5c1d7 JA |
813 | return 0; |
814 | } | |
815 | td_verror(td, errno, "fopen iosched"); | |
da86774e JA |
816 | return 1; |
817 | } | |
818 | ||
819 | /* | |
820 | * Set io scheduler. | |
821 | */ | |
2dc1bbeb | 822 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); |
da86774e | 823 | if (ferror(f) || ret != 1) { |
e1161c32 | 824 | td_verror(td, errno, "fwrite"); |
da86774e JA |
825 | fclose(f); |
826 | return 1; | |
827 | } | |
828 | ||
829 | rewind(f); | |
830 | ||
831 | /* | |
832 | * Read back and check that the selected scheduler is now the default. | |
833 | */ | |
834 | ret = fread(tmp, 1, sizeof(tmp), f); | |
835 | if (ferror(f) || ret < 0) { | |
e1161c32 | 836 | td_verror(td, errno, "fread"); |
da86774e JA |
837 | fclose(f); |
838 | return 1; | |
839 | } | |
840 | ||
2dc1bbeb | 841 | sprintf(tmp2, "[%s]", td->o.ioscheduler); |
da86774e | 842 | if (!strstr(tmp, tmp2)) { |
2dc1bbeb | 843 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); |
e1161c32 | 844 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
845 | fclose(f); |
846 | return 1; | |
847 | } | |
848 | ||
849 | fclose(f); | |
850 | return 0; | |
851 | } | |
852 | ||
492158cf JA |
853 | static int keep_running(struct thread_data *td) |
854 | { | |
855 | unsigned long long io_done; | |
856 | ||
20e354ef JA |
857 | if (td->done) |
858 | return 0; | |
492158cf JA |
859 | if (td->o.time_based) |
860 | return 1; | |
861 | if (td->o.loops) { | |
862 | td->o.loops--; | |
863 | return 1; | |
864 | } | |
865 | ||
5ec10eaa JA |
866 | io_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE] |
867 | + td->io_skip_bytes; | |
492158cf JA |
868 | if (io_done < td->o.size) |
869 | return 1; | |
870 | ||
871 | return 0; | |
872 | } | |
873 | ||
b29ee5b3 | 874 | static void reset_io_counters(struct thread_data *td) |
ebac4655 | 875 | { |
756867bd | 876 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 877 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 878 | td->zone_bytes = 0; |
d7d3b49b | 879 | td->rate_bytes = 0; |
4e991c23 | 880 | td->rate_blocks = 0; |
38d77cae | 881 | td->rw_end_set[0] = td->rw_end_set[1] = 0; |
ebac4655 | 882 | |
c1324df1 JA |
883 | td->last_was_sync = 0; |
884 | ||
2ba1c290 JA |
885 | /* |
886 | * reset file done count if we are to start over | |
887 | */ | |
888 | if (td->o.time_based || td->o.loops) | |
48f5abd3 | 889 | td->nr_done_files = 0; |
5bfc35d7 JA |
890 | |
891 | /* | |
892 | * Set the same seed to get repeatable runs | |
893 | */ | |
894 | td_fill_rand_seeds(td); | |
b29ee5b3 JA |
895 | } |
896 | ||
897 | void reset_all_stats(struct thread_data *td) | |
898 | { | |
899 | struct timeval tv; | |
900 | int i; | |
901 | ||
902 | reset_io_counters(td); | |
903 | ||
904 | for (i = 0; i < 2; i++) { | |
905 | td->io_bytes[i] = 0; | |
906 | td->io_blocks[i] = 0; | |
907 | td->io_issues[i] = 0; | |
908 | td->ts.total_io_u[i] = 0; | |
909 | } | |
910 | ||
911 | fio_gettime(&tv, NULL); | |
912 | memcpy(&td->epoch, &tv, sizeof(tv)); | |
913 | memcpy(&td->start, &tv, sizeof(tv)); | |
914 | } | |
915 | ||
df9c26b1 | 916 | static void clear_io_state(struct thread_data *td) |
b29ee5b3 JA |
917 | { |
918 | struct fio_file *f; | |
919 | unsigned int i; | |
b29ee5b3 JA |
920 | |
921 | reset_io_counters(td); | |
281f9b63 | 922 | |
24ffd2c2 | 923 | close_files(td); |
df9c26b1 | 924 | for_each_file(td, f, i) |
281f9b63 | 925 | f->flags &= ~FIO_FILE_DONE; |
ebac4655 JA |
926 | } |
927 | ||
398e8c4d JA |
928 | static int exec_string(const char *string) |
929 | { | |
930 | int ret, newlen = strlen(string) + 1 + 8; | |
931 | char *str; | |
932 | ||
933 | str = malloc(newlen); | |
934 | sprintf(str, "sh -c %s", string); | |
935 | ||
936 | ret = system(str); | |
937 | if (ret == -1) | |
938 | log_err("fio: exec of cmd <%s> failed\n", str); | |
939 | ||
940 | free(str); | |
941 | return ret; | |
942 | } | |
943 | ||
906c8d75 JA |
944 | /* |
945 | * Entry point for the thread based jobs. The process based jobs end up | |
946 | * here as well, after a little setup. | |
947 | */ | |
ebac4655 JA |
948 | static void *thread_main(void *data) |
949 | { | |
10927316 | 950 | unsigned long long runtime[2], elapsed; |
ebac4655 | 951 | struct thread_data *td = data; |
a978ba68 | 952 | int clear_state; |
ebac4655 | 953 | |
2dc1bbeb | 954 | if (!td->o.use_thread) |
ebac4655 JA |
955 | setsid(); |
956 | ||
957 | td->pid = getpid(); | |
958 | ||
5921e80c | 959 | dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); |
ee56ad50 | 960 | |
01743ee1 JA |
961 | INIT_FLIST_HEAD(&td->io_u_freelist); |
962 | INIT_FLIST_HEAD(&td->io_u_busylist); | |
963 | INIT_FLIST_HEAD(&td->io_u_requeues); | |
964 | INIT_FLIST_HEAD(&td->io_log_list); | |
965 | INIT_FLIST_HEAD(&td->io_hist_list); | |
bb5d7d0b | 966 | td->io_hist_tree = RB_ROOT; |
aea47d44 | 967 | |
db1cd90b | 968 | td_set_runstate(td, TD_INITIALIZED); |
29adda3c | 969 | dprint(FD_MUTEX, "up startup_mutex\n"); |
cdd18ad8 | 970 | fio_mutex_up(startup_mutex); |
29adda3c | 971 | dprint(FD_MUTEX, "wait on td->mutex\n"); |
cdd18ad8 | 972 | fio_mutex_down(td->mutex); |
29adda3c | 973 | dprint(FD_MUTEX, "done waiting on td->mutex\n"); |
db1cd90b JA |
974 | |
975 | /* | |
cdd18ad8 | 976 | * the ->mutex mutex is now no longer used, close it to avoid |
db1cd90b JA |
977 | * eating a file descriptor |
978 | */ | |
cdd18ad8 | 979 | fio_mutex_remove(td->mutex); |
db1cd90b | 980 | |
d84f8d49 JA |
981 | /* |
982 | * May alter parameters that init_io_u() will use, so we need to | |
983 | * do this first. | |
984 | */ | |
985 | if (init_iolog(td)) | |
986 | goto err; | |
987 | ||
ebac4655 | 988 | if (init_io_u(td)) |
db1cd90b | 989 | goto err; |
ebac4655 | 990 | |
375b2695 | 991 | if (td->o.cpumask_set && fio_setaffinity(td) == -1) { |
e1161c32 | 992 | td_verror(td, errno, "cpu_set_affinity"); |
db1cd90b | 993 | goto err; |
ebac4655 JA |
994 | } |
995 | ||
f484470b JA |
996 | /* |
997 | * If we have a gettimeofday() thread, make sure we exclude that | |
998 | * thread from this job | |
999 | */ | |
be4ecfdf | 1000 | if (td->o.gtod_cpu) { |
be4ecfdf JA |
1001 | fio_cpu_clear(&td->o.cpumask, td->o.gtod_cpu); |
1002 | if (fio_setaffinity(td) == -1) { | |
1003 | td_verror(td, errno, "cpu_set_affinity"); | |
1004 | goto err; | |
1005 | } | |
1006 | } | |
1007 | ||
ac684785 | 1008 | if (td->ioprio_set) { |
ebac4655 | 1009 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
e1161c32 | 1010 | td_verror(td, errno, "ioprio_set"); |
db1cd90b | 1011 | goto err; |
ebac4655 JA |
1012 | } |
1013 | } | |
1014 | ||
2dc1bbeb | 1015 | if (nice(td->o.nice) == -1) { |
e1161c32 | 1016 | td_verror(td, errno, "nice"); |
db1cd90b | 1017 | goto err; |
b6f4d880 JA |
1018 | } |
1019 | ||
2dc1bbeb | 1020 | if (td->o.ioscheduler && switch_ioscheduler(td)) |
db1cd90b | 1021 | goto err; |
37f56873 | 1022 | |
2dc1bbeb | 1023 | if (!td->o.create_serialize && setup_files(td)) |
ebac4655 JA |
1024 | goto err; |
1025 | ||
7d6c5283 JA |
1026 | if (td_io_init(td)) |
1027 | goto err; | |
1028 | ||
68727076 JA |
1029 | if (init_random_map(td)) |
1030 | goto err; | |
1031 | ||
2dc1bbeb | 1032 | if (td->o.exec_prerun) { |
398e8c4d | 1033 | if (exec_string(td->o.exec_prerun)) |
69cfd7e0 JA |
1034 | goto err; |
1035 | } | |
4e0ba8af | 1036 | |
afad68f7 ZY |
1037 | if (td->o.pre_read) { |
1038 | if (pre_read_files(td) < 0) | |
1039 | goto err; | |
1040 | } | |
1041 | ||
69008999 | 1042 | fio_gettime(&td->epoch, NULL); |
756867bd | 1043 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 JA |
1044 | |
1045 | runtime[0] = runtime[1] = 0; | |
a978ba68 | 1046 | clear_state = 0; |
492158cf | 1047 | while (keep_running(td)) { |
02bcaa8c | 1048 | fio_gettime(&td->start, NULL); |
756867bd | 1049 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
993bf48b | 1050 | memcpy(&td->tv_cache, &td->start, sizeof(td->start)); |
ebac4655 | 1051 | |
2dc1bbeb | 1052 | if (td->o.ratemin) |
5ec10eaa JA |
1053 | memcpy(&td->lastrate, &td->ts.stat_sample_time, |
1054 | sizeof(td->lastrate)); | |
ebac4655 | 1055 | |
df9c26b1 JA |
1056 | if (clear_state) |
1057 | clear_io_state(td); | |
a978ba68 | 1058 | |
ebac4655 JA |
1059 | prune_io_piece_log(td); |
1060 | ||
ba0fbe10 | 1061 | do_io(td); |
ebac4655 | 1062 | |
a978ba68 JA |
1063 | clear_state = 1; |
1064 | ||
38d77cae JA |
1065 | if (td_read(td) && td->io_bytes[DDIR_READ]) { |
1066 | if (td->rw_end_set[DDIR_READ]) | |
5ec10eaa JA |
1067 | elapsed = utime_since(&td->start, |
1068 | &td->rw_end[DDIR_READ]); | |
38d77cae JA |
1069 | else |
1070 | elapsed = utime_since_now(&td->start); | |
1071 | ||
1072 | runtime[DDIR_READ] += elapsed; | |
1073 | } | |
1074 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { | |
1075 | if (td->rw_end_set[DDIR_WRITE]) | |
5ec10eaa JA |
1076 | elapsed = utime_since(&td->start, |
1077 | &td->rw_end[DDIR_WRITE]); | |
38d77cae JA |
1078 | else |
1079 | elapsed = utime_since_now(&td->start); | |
1080 | ||
1081 | runtime[DDIR_WRITE] += elapsed; | |
1082 | } | |
5ec10eaa | 1083 | |
ebac4655 JA |
1084 | if (td->error || td->terminate) |
1085 | break; | |
1086 | ||
e84c73a8 SL |
1087 | if (!td->o.do_verify || |
1088 | td->o.verify == VERIFY_NONE || | |
b67740d3 | 1089 | (td->io_ops->flags & FIO_UNIDIR)) |
ebac4655 JA |
1090 | continue; |
1091 | ||
df9c26b1 | 1092 | clear_io_state(td); |
a978ba68 | 1093 | |
02bcaa8c | 1094 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
1095 | |
1096 | do_verify(td); | |
1097 | ||
69008999 | 1098 | runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
1099 | |
1100 | if (td->error || td->terminate) | |
1101 | break; | |
1102 | } | |
1103 | ||
36dff966 | 1104 | update_rusage_stat(td); |
47f0cc48 YHJT |
1105 | td->ts.runtime[0] = (runtime[0] + 999) / 1000; |
1106 | td->ts.runtime[1] = (runtime[1] + 999) / 1000; | |
756867bd JA |
1107 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
1108 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
1109 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
1110 | ||
d2bbb8d9 | 1111 | fio_mutex_down(writeout_mutex); |
e3cedca7 | 1112 | if (td->ts.bw_log) { |
f484470b JA |
1113 | if (td->o.bw_log_file) { |
1114 | finish_log_named(td, td->ts.bw_log, | |
1115 | td->o.bw_log_file, "bw"); | |
1116 | } else | |
e3cedca7 JA |
1117 | finish_log(td, td->ts.bw_log, "bw"); |
1118 | } | |
1119 | if (td->ts.slat_log) { | |
f484470b JA |
1120 | if (td->o.lat_log_file) { |
1121 | finish_log_named(td, td->ts.slat_log, | |
1ca95738 | 1122 | td->o.lat_log_file, "slat"); |
f484470b | 1123 | } else |
e3cedca7 JA |
1124 | finish_log(td, td->ts.slat_log, "slat"); |
1125 | } | |
1126 | if (td->ts.clat_log) { | |
f484470b JA |
1127 | if (td->o.lat_log_file) { |
1128 | finish_log_named(td, td->ts.clat_log, | |
1129 | td->o.lat_log_file, "clat"); | |
1130 | } else | |
e3cedca7 JA |
1131 | finish_log(td, td->ts.clat_log, "clat"); |
1132 | } | |
d2bbb8d9 | 1133 | fio_mutex_up(writeout_mutex); |
398e8c4d JA |
1134 | if (td->o.exec_postrun) |
1135 | exec_string(td->o.exec_postrun); | |
ebac4655 JA |
1136 | |
1137 | if (exitall_on_terminate) | |
390c40e2 | 1138 | terminate_threads(td->groupid); |
ebac4655 JA |
1139 | |
1140 | err: | |
5bf13a5a | 1141 | if (td->error) |
5921e80c | 1142 | printf("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, |
5ec10eaa | 1143 | td->verror); |
24ffd2c2 | 1144 | close_and_free_files(td); |
2866c82d | 1145 | close_ioengine(td); |
ebac4655 | 1146 | cleanup_io_u(td); |
f29b25a3 | 1147 | |
d2ce18b5 JA |
1148 | if (td->o.cpumask_set) { |
1149 | int ret = fio_cpuset_exit(&td->o.cpumask); | |
1150 | ||
1151 | td_verror(td, ret, "fio_cpuset_exit"); | |
1152 | } | |
4e78e405 | 1153 | |
f29b25a3 JA |
1154 | /* |
1155 | * do this very late, it will log file closing as well | |
1156 | */ | |
1157 | if (td->o.write_iolog_file) | |
1158 | write_iolog_close(td); | |
1159 | ||
d23bb327 | 1160 | options_mem_free(td); |
ebac4655 | 1161 | td_set_runstate(td, TD_EXITED); |
43d76807 | 1162 | return (void *) (unsigned long) td->error; |
ebac4655 JA |
1163 | } |
1164 | ||
906c8d75 JA |
1165 | /* |
1166 | * We cannot pass the td data into a forked process, so attach the td and | |
1167 | * pass it to the thread worker. | |
1168 | */ | |
a6418147 | 1169 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
1170 | { |
1171 | struct thread_data *td; | |
a6418147 | 1172 | void *data, *ret; |
ebac4655 JA |
1173 | |
1174 | data = shmat(shmid, NULL, 0); | |
1175 | if (data == (void *) -1) { | |
a6418147 JA |
1176 | int __err = errno; |
1177 | ||
ebac4655 | 1178 | perror("shmat"); |
a6418147 | 1179 | return __err; |
ebac4655 JA |
1180 | } |
1181 | ||
1182 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 1183 | ret = thread_main(td); |
ebac4655 | 1184 | shmdt(data); |
43d76807 | 1185 | return (int) (unsigned long) ret; |
ebac4655 JA |
1186 | } |
1187 | ||
906c8d75 JA |
1188 | /* |
1189 | * Run over the job map and reap the threads that have exited, if any. | |
1190 | */ | |
ebac4655 JA |
1191 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
1192 | { | |
34572e28 | 1193 | struct thread_data *td; |
1f809d15 | 1194 | int i, cputhreads, realthreads, pending, status, ret; |
ebac4655 JA |
1195 | |
1196 | /* | |
1197 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1198 | */ | |
1f809d15 | 1199 | realthreads = pending = cputhreads = 0; |
34572e28 | 1200 | for_each_td(td, i) { |
3707f45b | 1201 | int flags = 0; |
a2f77c9f | 1202 | |
84585003 JA |
1203 | /* |
1204 | * ->io_ops is NULL for a thread that has closed its | |
1205 | * io engine | |
1206 | */ | |
ba0fbe10 | 1207 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 | 1208 | cputhreads++; |
1f809d15 JA |
1209 | else |
1210 | realthreads++; | |
b990b5c0 | 1211 | |
a1dedc1f AC |
1212 | if (!td->pid) { |
1213 | pending++; | |
1214 | continue; | |
1215 | } | |
1216 | if (td->runstate == TD_REAPED) | |
a2f77c9f | 1217 | continue; |
2dc1bbeb | 1218 | if (td->o.use_thread) { |
3707f45b JA |
1219 | if (td->runstate == TD_EXITED) { |
1220 | td_set_runstate(td, TD_REAPED); | |
1221 | goto reaped; | |
1222 | } | |
1223 | continue; | |
1224 | } | |
a2f77c9f JA |
1225 | |
1226 | flags = WNOHANG; | |
1227 | if (td->runstate == TD_EXITED) | |
1228 | flags = 0; | |
1229 | ||
1230 | /* | |
1231 | * check if someone quit or got killed in an unusual way | |
1232 | */ | |
1233 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 1234 | if (ret < 0) { |
a2f77c9f | 1235 | if (errno == ECHILD) { |
5921e80c JA |
1236 | log_err("fio: pid=%d disappeared %d\n", |
1237 | (int) td->pid, td->runstate); | |
a2f77c9f JA |
1238 | td_set_runstate(td, TD_REAPED); |
1239 | goto reaped; | |
1240 | } | |
1241 | perror("waitpid"); | |
1242 | } else if (ret == td->pid) { | |
1243 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
1244 | int sig = WTERMSIG(status); |
1245 | ||
d9244941 | 1246 | if (sig != SIGQUIT) |
5ec10eaa | 1247 | log_err("fio: pid=%d, got signal=%d\n", |
5921e80c | 1248 | (int) td->pid, sig); |
fab6aa71 JA |
1249 | td_set_runstate(td, TD_REAPED); |
1250 | goto reaped; | |
1251 | } | |
a2f77c9f JA |
1252 | if (WIFEXITED(status)) { |
1253 | if (WEXITSTATUS(status) && !td->error) | |
1254 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 1255 | |
a2f77c9f JA |
1256 | td_set_runstate(td, TD_REAPED); |
1257 | goto reaped; | |
a6418147 JA |
1258 | } |
1259 | } | |
ebac4655 | 1260 | |
a2f77c9f JA |
1261 | /* |
1262 | * thread is not dead, continue | |
1263 | */ | |
e48676ba | 1264 | pending++; |
a2f77c9f | 1265 | continue; |
fab6aa71 | 1266 | reaped: |
ebac4655 | 1267 | (*nr_running)--; |
2dc1bbeb JA |
1268 | (*m_rate) -= td->o.ratemin; |
1269 | (*t_rate) -= td->o.rate; | |
6f88bcb0 JA |
1270 | if (!td->pid) |
1271 | pending--; | |
a2f77c9f JA |
1272 | |
1273 | if (td->error) | |
1274 | exit_value++; | |
d3eeeabc JA |
1275 | |
1276 | done_secs += mtime_since_now(&td->epoch) / 1000; | |
ebac4655 | 1277 | } |
b990b5c0 | 1278 | |
1f809d15 | 1279 | if (*nr_running == cputhreads && !pending && realthreads) |
390c40e2 | 1280 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
1281 | } |
1282 | ||
be4ecfdf JA |
1283 | static void *gtod_thread_main(void *data) |
1284 | { | |
1285 | fio_mutex_up(startup_mutex); | |
1286 | ||
1287 | /* | |
1288 | * As long as we have jobs around, update the clock. It would be nice | |
1289 | * to have some way of NOT hammering that CPU with gettimeofday(), | |
1290 | * but I'm not sure what to use outside of a simple CPU nop to relax | |
1291 | * it - we don't want to lose precision. | |
1292 | */ | |
1293 | while (threads) { | |
1294 | fio_gtod_update(); | |
1295 | nop; | |
1296 | } | |
1297 | ||
1298 | return NULL; | |
1299 | } | |
1300 | ||
1301 | static int fio_start_gtod_thread(void) | |
1302 | { | |
f42c153d JA |
1303 | int ret; |
1304 | ||
1305 | ret = pthread_create(>od_thread, NULL, gtod_thread_main, NULL); | |
1306 | if (ret) { | |
1307 | log_err("Can't create gtod thread: %s\n", strerror(ret)); | |
be4ecfdf JA |
1308 | return 1; |
1309 | } | |
f42c153d JA |
1310 | |
1311 | ret = pthread_detach(gtod_thread); | |
1312 | if (ret) { | |
1313 | log_err("Can't detatch gtod thread: %s\n", strerror(ret)); | |
be4ecfdf JA |
1314 | return 1; |
1315 | } | |
1316 | ||
29adda3c | 1317 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
be4ecfdf | 1318 | fio_mutex_down(startup_mutex); |
29adda3c | 1319 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
be4ecfdf JA |
1320 | return 0; |
1321 | } | |
1322 | ||
906c8d75 JA |
1323 | /* |
1324 | * Main function for kicking off and reaping jobs, as needed. | |
1325 | */ | |
ebac4655 JA |
1326 | static void run_threads(void) |
1327 | { | |
ebac4655 JA |
1328 | struct thread_data *td; |
1329 | unsigned long spent; | |
1330 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 1331 | |
2f9ade3c JA |
1332 | if (fio_pin_memory()) |
1333 | return; | |
ebac4655 | 1334 | |
be4ecfdf JA |
1335 | if (fio_gtod_offload && fio_start_gtod_thread()) |
1336 | return; | |
1337 | ||
c6ae0a5b | 1338 | if (!terse_output) { |
9cedf167 JA |
1339 | printf("Starting "); |
1340 | if (nr_thread) | |
5ec10eaa JA |
1341 | printf("%d thread%s", nr_thread, |
1342 | nr_thread > 1 ? "s" : ""); | |
9cedf167 JA |
1343 | if (nr_process) { |
1344 | if (nr_thread) | |
1345 | printf(" and "); | |
5ec10eaa JA |
1346 | printf("%d process%s", nr_process, |
1347 | nr_process > 1 ? "es" : ""); | |
9cedf167 JA |
1348 | } |
1349 | printf("\n"); | |
c6ae0a5b JA |
1350 | fflush(stdout); |
1351 | } | |
c04f7ec3 | 1352 | |
697a606c | 1353 | set_sig_handlers(); |
4efa970e | 1354 | |
ebac4655 JA |
1355 | todo = thread_number; |
1356 | nr_running = 0; | |
1357 | nr_started = 0; | |
1358 | m_rate = t_rate = 0; | |
1359 | ||
34572e28 | 1360 | for_each_td(td, i) { |
263e529f | 1361 | print_status_init(td->thread_number - 1); |
ebac4655 | 1362 | |
2dc1bbeb | 1363 | if (!td->o.create_serialize) { |
380cf265 | 1364 | init_disk_util(td); |
ebac4655 | 1365 | continue; |
380cf265 | 1366 | } |
ebac4655 JA |
1367 | |
1368 | /* | |
1369 | * do file setup here so it happens sequentially, | |
1370 | * we don't want X number of threads getting their | |
1371 | * client data interspersed on disk | |
1372 | */ | |
53cdc686 | 1373 | if (setup_files(td)) { |
5bf13a5a JA |
1374 | exit_value++; |
1375 | if (td->error) | |
5921e80c JA |
1376 | log_err("fio: pid=%d, err=%d/%s\n", |
1377 | (int) td->pid, td->error, td->verror); | |
ebac4655 JA |
1378 | td_set_runstate(td, TD_REAPED); |
1379 | todo--; | |
c69e8875 JA |
1380 | } else { |
1381 | struct fio_file *f; | |
1382 | unsigned int i; | |
1383 | ||
1384 | /* | |
1385 | * for sharing to work, each job must always open | |
1386 | * its own files. so close them, if we opened them | |
1387 | * for creation | |
1388 | */ | |
1389 | for_each_file(td, f, i) | |
1390 | td_io_close_file(td, f); | |
5ec10eaa | 1391 | } |
380cf265 JA |
1392 | |
1393 | init_disk_util(td); | |
ebac4655 JA |
1394 | } |
1395 | ||
a2f77c9f JA |
1396 | set_genesis_time(); |
1397 | ||
ebac4655 | 1398 | while (todo) { |
75154845 JA |
1399 | struct thread_data *map[MAX_JOBS]; |
1400 | struct timeval this_start; | |
1401 | int this_jobs = 0, left; | |
1402 | ||
ebac4655 JA |
1403 | /* |
1404 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1405 | */ | |
34572e28 | 1406 | for_each_td(td, i) { |
ebac4655 JA |
1407 | if (td->runstate != TD_NOT_CREATED) |
1408 | continue; | |
1409 | ||
1410 | /* | |
1411 | * never got a chance to start, killed by other | |
1412 | * thread for some reason | |
1413 | */ | |
1414 | if (td->terminate) { | |
1415 | todo--; | |
1416 | continue; | |
1417 | } | |
1418 | ||
2dc1bbeb | 1419 | if (td->o.start_delay) { |
263e529f | 1420 | spent = mtime_since_genesis(); |
ebac4655 | 1421 | |
2dc1bbeb | 1422 | if (td->o.start_delay * 1000 > spent) |
ebac4655 JA |
1423 | continue; |
1424 | } | |
1425 | ||
6f88bcb0 JA |
1426 | if (td->o.stonewall && (nr_started || nr_running)) { |
1427 | dprint(FD_PROCESS, "%s: stonewall wait\n", | |
1428 | td->o.name); | |
ebac4655 | 1429 | break; |
6f88bcb0 | 1430 | } |
ebac4655 | 1431 | |
75154845 JA |
1432 | /* |
1433 | * Set state to created. Thread will transition | |
1434 | * to TD_INITIALIZED when it's done setting up. | |
1435 | */ | |
ebac4655 | 1436 | td_set_runstate(td, TD_CREATED); |
75154845 | 1437 | map[this_jobs++] = td; |
ebac4655 JA |
1438 | nr_started++; |
1439 | ||
2dc1bbeb | 1440 | if (td->o.use_thread) { |
f42c153d JA |
1441 | int ret; |
1442 | ||
ee56ad50 | 1443 | dprint(FD_PROCESS, "will pthread_create\n"); |
f42c153d JA |
1444 | ret = pthread_create(&td->thread, NULL, |
1445 | thread_main, td); | |
1446 | if (ret) { | |
1447 | log_err("pthread_create: %s\n", | |
1448 | strerror(ret)); | |
ebac4655 | 1449 | nr_started--; |
c8bb6faf | 1450 | break; |
ebac4655 | 1451 | } |
f42c153d JA |
1452 | ret = pthread_detach(td->thread); |
1453 | if (ret) | |
1454 | log_err("pthread_detach: %s", | |
1455 | strerror(ret)); | |
ebac4655 | 1456 | } else { |
5e1d306e | 1457 | pid_t pid; |
ee56ad50 | 1458 | dprint(FD_PROCESS, "will fork\n"); |
5e1d306e JA |
1459 | pid = fork(); |
1460 | if (!pid) { | |
a6418147 JA |
1461 | int ret = fork_main(shm_id, i); |
1462 | ||
5e1d306e JA |
1463 | _exit(ret); |
1464 | } else if (i == fio_debug_jobno) | |
1465 | *fio_debug_jobp = pid; | |
ebac4655 | 1466 | } |
29adda3c | 1467 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
cdd18ad8 | 1468 | fio_mutex_down(startup_mutex); |
29adda3c | 1469 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
ebac4655 JA |
1470 | } |
1471 | ||
1472 | /* | |
75154845 JA |
1473 | * Wait for the started threads to transition to |
1474 | * TD_INITIALIZED. | |
ebac4655 | 1475 | */ |
02bcaa8c | 1476 | fio_gettime(&this_start, NULL); |
75154845 | 1477 | left = this_jobs; |
6ce15a32 | 1478 | while (left && !fio_abort) { |
75154845 JA |
1479 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1480 | break; | |
1481 | ||
1482 | usleep(100000); | |
1483 | ||
1484 | for (i = 0; i < this_jobs; i++) { | |
1485 | td = map[i]; | |
1486 | if (!td) | |
1487 | continue; | |
b6f4d880 | 1488 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1489 | map[i] = NULL; |
1490 | left--; | |
b6f4d880 JA |
1491 | } else if (td->runstate >= TD_EXITED) { |
1492 | map[i] = NULL; | |
1493 | left--; | |
1494 | todo--; | |
1495 | nr_running++; /* work-around... */ | |
75154845 JA |
1496 | } |
1497 | } | |
1498 | } | |
1499 | ||
1500 | if (left) { | |
3b70d7e5 | 1501 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1502 | for (i = 0; i < this_jobs; i++) { |
1503 | td = map[i]; | |
1504 | if (!td) | |
1505 | continue; | |
1506 | kill(td->pid, SIGTERM); | |
1507 | } | |
1508 | break; | |
1509 | } | |
1510 | ||
1511 | /* | |
b6f4d880 | 1512 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1513 | */ |
34572e28 | 1514 | for_each_td(td, i) { |
75154845 | 1515 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1516 | continue; |
1517 | ||
b29ee5b3 JA |
1518 | if (in_ramp_time(td)) |
1519 | td_set_runstate(td, TD_RAMP); | |
1520 | else | |
1521 | td_set_runstate(td, TD_RUNNING); | |
ebac4655 JA |
1522 | nr_running++; |
1523 | nr_started--; | |
2dc1bbeb JA |
1524 | m_rate += td->o.ratemin; |
1525 | t_rate += td->o.rate; | |
75154845 | 1526 | todo--; |
cdd18ad8 | 1527 | fio_mutex_up(td->mutex); |
ebac4655 JA |
1528 | } |
1529 | ||
1530 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1531 | ||
1532 | if (todo) | |
1533 | usleep(100000); | |
1534 | } | |
1535 | ||
1536 | while (nr_running) { | |
1537 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1538 | usleep(10000); | |
1539 | } | |
1540 | ||
1541 | update_io_ticks(); | |
2f9ade3c | 1542 | fio_unpin_memory(); |
ebac4655 JA |
1543 | } |
1544 | ||
ebac4655 JA |
1545 | int main(int argc, char *argv[]) |
1546 | { | |
29d610e1 JA |
1547 | long ps; |
1548 | ||
2e5cdb11 JA |
1549 | sinit(); |
1550 | ||
dbe1125e JA |
1551 | /* |
1552 | * We need locale for number printing, if it isn't set then just | |
1553 | * go with the US format. | |
1554 | */ | |
1555 | if (!getenv("LC_NUMERIC")) | |
1556 | setlocale(LC_NUMERIC, "en_US"); | |
1557 | ||
ebac4655 JA |
1558 | if (parse_options(argc, argv)) |
1559 | return 1; | |
1560 | ||
4b472fa3 JA |
1561 | if (!thread_number) |
1562 | return 0; | |
ebac4655 | 1563 | |
29d610e1 JA |
1564 | ps = sysconf(_SC_PAGESIZE); |
1565 | if (ps < 0) { | |
1566 | log_err("Failed to get page size\n"); | |
1567 | return 1; | |
1568 | } | |
1569 | ||
cfc99db7 | 1570 | page_size = ps; |
29d610e1 JA |
1571 | page_mask = ps - 1; |
1572 | ||
bb3884d8 JA |
1573 | if (write_bw_log) { |
1574 | setup_log(&agg_io_log[DDIR_READ]); | |
1575 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1576 | } | |
1577 | ||
cdd18ad8 | 1578 | startup_mutex = fio_mutex_init(0); |
d2bbb8d9 | 1579 | writeout_mutex = fio_mutex_init(1); |
07739b57 | 1580 | |
a2f77c9f JA |
1581 | set_genesis_time(); |
1582 | ||
ccb0fa24 | 1583 | status_timer_arm(); |
ebac4655 JA |
1584 | |
1585 | run_threads(); | |
6ce15a32 | 1586 | |
bb3884d8 | 1587 | if (!fio_abort) { |
6ce15a32 | 1588 | show_run_stats(); |
bb3884d8 | 1589 | if (write_bw_log) { |
5ec10eaa JA |
1590 | __finish_log(agg_io_log[DDIR_READ], "agg-read_bw.log"); |
1591 | __finish_log(agg_io_log[DDIR_WRITE], | |
1592 | "agg-write_bw.log"); | |
bb3884d8 JA |
1593 | } |
1594 | } | |
ebac4655 | 1595 | |
cdd18ad8 | 1596 | fio_mutex_remove(startup_mutex); |
d2bbb8d9 | 1597 | fio_mutex_remove(writeout_mutex); |
437c9b71 | 1598 | return exit_value; |
ebac4655 | 1599 | } |