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" |
4f5af7b2 | 40 | #include "verify.h" |
7c9b1bce | 41 | #include "diskutil.h" |
ebac4655 | 42 | |
cfc99db7 JA |
43 | unsigned long page_mask; |
44 | unsigned long page_size; | |
29d610e1 JA |
45 | #define ALIGN(buf) \ |
46 | (char *) (((unsigned long) (buf) + page_mask) & ~page_mask) | |
ebac4655 JA |
47 | |
48 | int groupid = 0; | |
49 | int thread_number = 0; | |
9cedf167 JA |
50 | int nr_process = 0; |
51 | int nr_thread = 0; | |
ebac4655 | 52 | int shm_id = 0; |
53cdc686 | 53 | int temp_stall_ts; |
d3eeeabc | 54 | unsigned long done_secs = 0; |
ebac4655 | 55 | |
cdd18ad8 | 56 | static struct fio_mutex *startup_mutex; |
d2bbb8d9 | 57 | static struct fio_mutex *writeout_mutex; |
6ce15a32 | 58 | static volatile int fio_abort; |
437c9b71 | 59 | static int exit_value; |
ccb0fa24 | 60 | static struct itimerval itimer; |
be4ecfdf | 61 | static pthread_t gtod_thread; |
ebac4655 | 62 | |
bb3884d8 JA |
63 | struct io_log *agg_io_log[2]; |
64 | ||
ebac4655 | 65 | #define TERMINATE_ALL (-1) |
75154845 | 66 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 | 67 | |
b29ee5b3 | 68 | void td_set_runstate(struct thread_data *td, int runstate) |
6ce15a32 | 69 | { |
d8fab1b6 JA |
70 | if (td->runstate == runstate) |
71 | return; | |
72 | ||
5921e80c JA |
73 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, |
74 | td->runstate, runstate); | |
6ce15a32 JA |
75 | td->runstate = runstate; |
76 | } | |
77 | ||
390c40e2 | 78 | static void terminate_threads(int group_id) |
ebac4655 | 79 | { |
34572e28 | 80 | struct thread_data *td; |
ebac4655 JA |
81 | int i; |
82 | ||
6f88bcb0 JA |
83 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); |
84 | ||
34572e28 | 85 | for_each_td(td, i) { |
ebac4655 | 86 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
6f88bcb0 | 87 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", |
5921e80c | 88 | td->o.name, (int) td->pid); |
ad830ed7 JA |
89 | td->terminate = 1; |
90 | td->o.start_delay = 0; | |
91 | ||
7a93ab19 JA |
92 | /* |
93 | * if the thread is running, just let it exit | |
94 | */ | |
95 | if (td->runstate < TD_RUNNING) | |
c1302d44 | 96 | kill(td->pid, SIGQUIT); |
f63f7f3b JA |
97 | else { |
98 | struct ioengine_ops *ops = td->io_ops; | |
99 | ||
100 | if (ops && (ops->flags & FIO_SIGQUIT)) | |
101 | kill(td->pid, SIGQUIT); | |
102 | } | |
ebac4655 JA |
103 | } |
104 | } | |
105 | } | |
106 | ||
ccb0fa24 JA |
107 | static void status_timer_arm(void) |
108 | { | |
109 | itimer.it_value.tv_sec = 0; | |
110 | itimer.it_value.tv_usec = DISK_UTIL_MSEC * 1000; | |
111 | setitimer(ITIMER_REAL, &itimer, NULL); | |
112 | } | |
113 | ||
02444ad1 | 114 | static void sig_alrm(int fio_unused sig) |
ebac4655 | 115 | { |
697a606c | 116 | if (threads) { |
5ec10eaa | 117 | update_io_ticks(); |
5ec10eaa | 118 | print_thread_status(); |
ccb0fa24 | 119 | status_timer_arm(); |
697a606c JA |
120 | } |
121 | } | |
122 | ||
5f8f9726 JA |
123 | /* |
124 | * Happens on thread runs with ctrl-c, ignore our own SIGQUIT | |
125 | */ | |
126 | static void sig_quit(int sig) | |
127 | { | |
128 | } | |
129 | ||
697a606c JA |
130 | static void sig_int(int sig) |
131 | { | |
132 | if (threads) { | |
5ec10eaa JA |
133 | printf("\nfio: terminating on signal %d\n", sig); |
134 | fflush(stdout); | |
135 | terminate_threads(TERMINATE_ALL); | |
ebac4655 JA |
136 | } |
137 | } | |
138 | ||
02444ad1 | 139 | static void sig_ill(int fio_unused sig) |
de79c915 JA |
140 | { |
141 | if (!threads) | |
142 | return; | |
143 | ||
144 | log_err("fio: illegal instruction. your cpu does not support " | |
145 | "the sse4.2 instruction for crc32c\n"); | |
146 | terminate_threads(TERMINATE_ALL); | |
147 | exit(4); | |
148 | } | |
149 | ||
697a606c JA |
150 | static void set_sig_handlers(void) |
151 | { | |
152 | struct sigaction act; | |
153 | ||
154 | memset(&act, 0, sizeof(act)); | |
155 | act.sa_handler = sig_alrm; | |
156 | act.sa_flags = SA_RESTART; | |
157 | sigaction(SIGALRM, &act, NULL); | |
158 | ||
159 | memset(&act, 0, sizeof(act)); | |
160 | act.sa_handler = sig_int; | |
161 | act.sa_flags = SA_RESTART; | |
162 | sigaction(SIGINT, &act, NULL); | |
de79c915 JA |
163 | |
164 | memset(&act, 0, sizeof(act)); | |
165 | act.sa_handler = sig_ill; | |
166 | act.sa_flags = SA_RESTART; | |
167 | sigaction(SIGILL, &act, NULL); | |
5f8f9726 JA |
168 | |
169 | memset(&act, 0, sizeof(act)); | |
170 | act.sa_handler = sig_quit; | |
171 | act.sa_flags = SA_RESTART; | |
172 | sigaction(SIGQUIT, &act, NULL); | |
697a606c JA |
173 | } |
174 | ||
906c8d75 JA |
175 | /* |
176 | * Check if we are above the minimum rate given. | |
177 | */ | |
581e7141 JA |
178 | static int __check_min_rate(struct thread_data *td, struct timeval *now, |
179 | enum td_ddir ddir) | |
ebac4655 | 180 | { |
0904200b | 181 | unsigned long long bytes = 0; |
4e991c23 | 182 | unsigned long iops = 0; |
ebac4655 JA |
183 | unsigned long spent; |
184 | unsigned long rate; | |
581e7141 JA |
185 | unsigned int ratemin = 0; |
186 | unsigned int rate_iops = 0; | |
187 | unsigned int rate_iops_min = 0; | |
ebac4655 | 188 | |
d982d873 JA |
189 | if (!td->o.ratemin[ddir] && !td->o.rate_iops_min[ddir]) |
190 | return 0; | |
191 | ||
ebac4655 JA |
192 | /* |
193 | * allow a 2 second settle period in the beginning | |
194 | */ | |
195 | if (mtime_since(&td->start, now) < 2000) | |
196 | return 0; | |
197 | ||
581e7141 JA |
198 | iops += td->io_blocks[ddir]; |
199 | bytes += td->this_io_bytes[ddir]; | |
200 | ratemin += td->o.ratemin[ddir]; | |
201 | rate_iops += td->o.rate_iops[ddir]; | |
202 | rate_iops_min += td->o.rate_iops_min[ddir]; | |
0904200b | 203 | |
ebac4655 JA |
204 | /* |
205 | * if rate blocks is set, sample is running | |
206 | */ | |
581e7141 JA |
207 | if (td->rate_bytes[ddir] || td->rate_blocks[ddir]) { |
208 | spent = mtime_since(&td->lastrate[ddir], now); | |
2dc1bbeb | 209 | if (spent < td->o.ratecycle) |
ebac4655 JA |
210 | return 0; |
211 | ||
581e7141 | 212 | if (td->o.rate[ddir]) { |
4e991c23 JA |
213 | /* |
214 | * check bandwidth specified rate | |
215 | */ | |
581e7141 | 216 | if (bytes < td->rate_bytes[ddir]) { |
5ec10eaa | 217 | log_err("%s: min rate %u not met\n", td->o.name, |
581e7141 | 218 | ratemin); |
4e991c23 JA |
219 | return 1; |
220 | } else { | |
581e7141 JA |
221 | rate = ((bytes - td->rate_bytes[ddir]) * 1000) / spent; |
222 | if (rate < ratemin || | |
223 | bytes < td->rate_bytes[ddir]) { | |
5ec10eaa JA |
224 | log_err("%s: min rate %u not met, got" |
225 | " %luKiB/sec\n", td->o.name, | |
581e7141 | 226 | ratemin, rate); |
4e991c23 JA |
227 | return 1; |
228 | } | |
229 | } | |
413dd459 | 230 | } else { |
4e991c23 JA |
231 | /* |
232 | * checks iops specified rate | |
233 | */ | |
581e7141 | 234 | if (iops < rate_iops) { |
5ec10eaa | 235 | log_err("%s: min iops rate %u not met\n", |
581e7141 | 236 | td->o.name, rate_iops); |
413dd459 | 237 | return 1; |
4e991c23 | 238 | } else { |
581e7141 JA |
239 | rate = ((iops - td->rate_blocks[ddir]) * 1000) / spent; |
240 | if (rate < rate_iops_min || | |
241 | iops < td->rate_blocks[ddir]) { | |
5ec10eaa JA |
242 | log_err("%s: min iops rate %u not met," |
243 | " got %lu\n", td->o.name, | |
581e7141 | 244 | rate_iops_min, rate); |
4e991c23 | 245 | } |
413dd459 | 246 | } |
ebac4655 JA |
247 | } |
248 | } | |
249 | ||
581e7141 JA |
250 | td->rate_bytes[ddir] = bytes; |
251 | td->rate_blocks[ddir] = iops; | |
252 | memcpy(&td->lastrate[ddir], now, sizeof(*now)); | |
ebac4655 JA |
253 | return 0; |
254 | } | |
255 | ||
581e7141 JA |
256 | static int check_min_rate(struct thread_data *td, struct timeval *now, |
257 | unsigned long *bytes_done) | |
258 | { | |
259 | int ret = 0; | |
260 | ||
261 | if (bytes_done[0]) | |
262 | ret |= __check_min_rate(td, now, 0); | |
263 | if (bytes_done[1]) | |
264 | ret |= __check_min_rate(td, now, 1); | |
265 | ||
266 | return ret; | |
267 | } | |
268 | ||
ebac4655 JA |
269 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) |
270 | { | |
2dc1bbeb | 271 | if (!td->o.timeout) |
ebac4655 | 272 | return 0; |
2dc1bbeb | 273 | if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) |
ebac4655 JA |
274 | return 1; |
275 | ||
276 | return 0; | |
277 | } | |
278 | ||
906c8d75 JA |
279 | /* |
280 | * When job exits, we can cancel the in-flight IO if we are using async | |
281 | * io. Attempt to do so. | |
282 | */ | |
ebac4655 JA |
283 | static void cleanup_pending_aio(struct thread_data *td) |
284 | { | |
01743ee1 | 285 | struct flist_head *entry, *n; |
ebac4655 JA |
286 | struct io_u *io_u; |
287 | int r; | |
288 | ||
289 | /* | |
290 | * get immediately available events, if any | |
291 | */ | |
581e7141 | 292 | r = io_u_queued_complete(td, 0, NULL); |
b2fdda43 JA |
293 | if (r < 0) |
294 | return; | |
ebac4655 JA |
295 | |
296 | /* | |
297 | * now cancel remaining active events | |
298 | */ | |
2866c82d | 299 | if (td->io_ops->cancel) { |
01743ee1 JA |
300 | flist_for_each_safe(entry, n, &td->io_u_busylist) { |
301 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 302 | |
0c6e7517 JA |
303 | /* |
304 | * if the io_u isn't in flight, then that generally | |
305 | * means someone leaked an io_u. complain but fix | |
306 | * it up, so we don't stall here. | |
307 | */ | |
308 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
309 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 310 | put_io_u(td, io_u); |
0c6e7517 JA |
311 | } else { |
312 | r = td->io_ops->cancel(td, io_u); | |
313 | if (!r) | |
314 | put_io_u(td, io_u); | |
315 | } | |
ebac4655 JA |
316 | } |
317 | } | |
318 | ||
97601024 | 319 | if (td->cur_depth) |
581e7141 | 320 | r = io_u_queued_complete(td, td->cur_depth, NULL); |
ebac4655 JA |
321 | } |
322 | ||
858a3d47 JA |
323 | /* |
324 | * Helper to handle the final sync of a file. Works just like the normal | |
325 | * io path, just does everything sync. | |
326 | */ | |
327 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
328 | { | |
329 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
330 | int ret; |
331 | ||
332 | if (!io_u) | |
333 | return 1; | |
334 | ||
335 | io_u->ddir = DDIR_SYNC; | |
336 | io_u->file = f; | |
337 | ||
338 | if (td_io_prep(td, io_u)) { | |
339 | put_io_u(td, io_u); | |
340 | return 1; | |
341 | } | |
342 | ||
755200a3 | 343 | requeue: |
858a3d47 | 344 | ret = td_io_queue(td, io_u); |
36167d82 | 345 | if (ret < 0) { |
e1161c32 | 346 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 347 | put_io_u(td, io_u); |
858a3d47 | 348 | return 1; |
36167d82 | 349 | } else if (ret == FIO_Q_QUEUED) { |
581e7141 | 350 | if (io_u_queued_complete(td, 1, NULL) < 0) |
36167d82 | 351 | return 1; |
36167d82 JA |
352 | } else if (ret == FIO_Q_COMPLETED) { |
353 | if (io_u->error) { | |
e1161c32 | 354 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
355 | return 1; |
356 | } | |
858a3d47 | 357 | |
581e7141 | 358 | if (io_u_sync_complete(td, io_u, NULL) < 0) |
b2fdda43 | 359 | return 1; |
755200a3 JA |
360 | } else if (ret == FIO_Q_BUSY) { |
361 | if (td_io_commit(td)) | |
362 | return 1; | |
363 | goto requeue; | |
858a3d47 JA |
364 | } |
365 | ||
366 | return 0; | |
367 | } | |
368 | ||
993bf48b JA |
369 | static inline void update_tv_cache(struct thread_data *td) |
370 | { | |
371 | if ((++td->tv_cache_nr & td->tv_cache_mask) == td->tv_cache_mask) | |
372 | fio_gettime(&td->tv_cache, NULL); | |
373 | } | |
374 | ||
906c8d75 | 375 | /* |
34403fb1 | 376 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
377 | * reads the blocks back in, and checks the crc/md5 of the data. |
378 | */ | |
1e97cce9 | 379 | static void do_verify(struct thread_data *td) |
ebac4655 | 380 | { |
53cdc686 | 381 | struct fio_file *f; |
36167d82 | 382 | struct io_u *io_u; |
af52b345 JA |
383 | int ret, min_events; |
384 | unsigned int i; | |
e5b401d4 JA |
385 | |
386 | /* | |
387 | * sync io first and invalidate cache, to make sure we really | |
388 | * read from disk. | |
389 | */ | |
390 | for_each_file(td, f, i) { | |
d6aed795 | 391 | if (!fio_file_open(f)) |
3d7b485f | 392 | continue; |
b2fdda43 JA |
393 | if (fio_io_sync(td, f)) |
394 | break; | |
395 | if (file_invalidate_cache(td, f)) | |
396 | break; | |
e5b401d4 | 397 | } |
ebac4655 | 398 | |
b2fdda43 JA |
399 | if (td->error) |
400 | return; | |
401 | ||
ebac4655 JA |
402 | td_set_runstate(td, TD_VERIFYING); |
403 | ||
36167d82 JA |
404 | io_u = NULL; |
405 | while (!td->terminate) { | |
4950421a | 406 | int ret2, full; |
5451792e | 407 | |
ebac4655 JA |
408 | io_u = __get_io_u(td); |
409 | if (!io_u) | |
410 | break; | |
411 | ||
993bf48b JA |
412 | update_tv_cache(td); |
413 | ||
414 | if (runtime_exceeded(td, &td->tv_cache)) { | |
069c2918 | 415 | put_io_u(td, io_u); |
90a87d4b | 416 | td->terminate = 1; |
02bcaa8c | 417 | break; |
069c2918 | 418 | } |
02bcaa8c | 419 | |
069c2918 JA |
420 | if (get_next_verify(td, io_u)) { |
421 | put_io_u(td, io_u); | |
ebac4655 | 422 | break; |
069c2918 | 423 | } |
ebac4655 | 424 | |
069c2918 JA |
425 | if (td_io_prep(td, io_u)) { |
426 | put_io_u(td, io_u); | |
53cdc686 | 427 | break; |
069c2918 | 428 | } |
d7762cf8 JA |
429 | |
430 | io_u->end_io = verify_io_u; | |
53cdc686 | 431 | |
11786802 | 432 | ret = td_io_queue(td, io_u); |
36167d82 JA |
433 | switch (ret) { |
434 | case FIO_Q_COMPLETED: | |
435 | if (io_u->error) | |
22819ec2 | 436 | ret = -io_u->error; |
9e9d164e | 437 | else if (io_u->resid) { |
36167d82 | 438 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 439 | struct fio_file *f = io_u->file; |
ebac4655 | 440 | |
9e9d164e JA |
441 | /* |
442 | * zero read, fail | |
443 | */ | |
444 | if (!bytes) { | |
41d9f0fd | 445 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
446 | put_io_u(td, io_u); |
447 | break; | |
448 | } | |
8400d9b2 | 449 | |
36167d82 JA |
450 | io_u->xfer_buflen = io_u->resid; |
451 | io_u->xfer_buf += bytes; | |
8400d9b2 JA |
452 | io_u->offset += bytes; |
453 | ||
30061b97 JA |
454 | td->ts.short_io_u[io_u->ddir]++; |
455 | ||
d460eb31 | 456 | if (io_u->offset == f->real_file_size) |
8400d9b2 JA |
457 | goto sync_done; |
458 | ||
11786802 JA |
459 | requeue_io_u(td, &io_u); |
460 | } else { | |
8400d9b2 | 461 | sync_done: |
581e7141 | 462 | ret = io_u_sync_complete(td, io_u, NULL); |
11786802 JA |
463 | if (ret < 0) |
464 | break; | |
36167d82 | 465 | } |
36167d82 JA |
466 | continue; |
467 | case FIO_Q_QUEUED: | |
468 | break; | |
755200a3 JA |
469 | case FIO_Q_BUSY: |
470 | requeue_io_u(td, &io_u); | |
5451792e JA |
471 | ret2 = td_io_commit(td); |
472 | if (ret2 < 0) | |
473 | ret = ret2; | |
755200a3 | 474 | break; |
36167d82 JA |
475 | default: |
476 | assert(ret < 0); | |
e1161c32 | 477 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
478 | break; |
479 | } | |
480 | ||
99784632 | 481 | if (ret < 0 || td->error) |
3af6ef39 JA |
482 | break; |
483 | ||
ebac4655 | 484 | /* |
3af6ef39 JA |
485 | * if we can queue more, do so. but check if there are |
486 | * completed io_u's first. | |
ebac4655 | 487 | */ |
4950421a JA |
488 | full = queue_full(td) || ret == FIO_Q_BUSY; |
489 | if (full || !td->o.iodepth_batch_complete) { | |
490 | min_events = td->o.iodepth_batch_complete; | |
491 | if (full && !min_events) | |
838bc709 | 492 | min_events = 1; |
e916b390 | 493 | |
4950421a JA |
494 | do { |
495 | /* | |
496 | * Reap required number of io units, if any, | |
497 | * and do the verification on them through | |
498 | * the callback handler | |
499 | */ | |
581e7141 | 500 | if (io_u_queued_complete(td, min_events, NULL) < 0) { |
4950421a JA |
501 | ret = -1; |
502 | break; | |
503 | } | |
504 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
505 | } | |
506 | if (ret < 0) | |
ebac4655 | 507 | break; |
36167d82 | 508 | } |
ebac4655 | 509 | |
c01c0395 JA |
510 | if (!td->error) { |
511 | min_events = td->cur_depth; | |
512 | ||
513 | if (min_events) | |
581e7141 | 514 | ret = io_u_queued_complete(td, min_events, NULL); |
c01c0395 | 515 | } else |
ebac4655 JA |
516 | cleanup_pending_aio(td); |
517 | ||
518 | td_set_runstate(td, TD_RUNNING); | |
519 | } | |
520 | ||
32cd46a0 | 521 | /* |
906c8d75 | 522 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
523 | * and reaps them, checking for rate and errors along the way. |
524 | */ | |
ebac4655 JA |
525 | static void do_io(struct thread_data *td) |
526 | { | |
af52b345 JA |
527 | unsigned int i; |
528 | int ret = 0; | |
ebac4655 | 529 | |
b29ee5b3 JA |
530 | if (in_ramp_time(td)) |
531 | td_set_runstate(td, TD_RAMP); | |
532 | else | |
533 | td_set_runstate(td, TD_RUNNING); | |
5853e5a8 | 534 | |
7bb48f84 | 535 | while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) { |
97601024 | 536 | struct timeval comp_time; |
581e7141 | 537 | unsigned long bytes_done[2] = { 0, 0 }; |
84585003 | 538 | int min_evts = 0; |
ebac4655 | 539 | struct io_u *io_u; |
4950421a | 540 | int ret2, full; |
ebac4655 JA |
541 | |
542 | if (td->terminate) | |
543 | break; | |
544 | ||
3d7c391d | 545 | io_u = get_io_u(td); |
ebac4655 JA |
546 | if (!io_u) |
547 | break; | |
548 | ||
993bf48b | 549 | update_tv_cache(td); |
97601024 | 550 | |
993bf48b | 551 | if (runtime_exceeded(td, &td->tv_cache)) { |
97601024 | 552 | put_io_u(td, io_u); |
90a87d4b | 553 | td->terminate = 1; |
97601024 JA |
554 | break; |
555 | } | |
36167d82 | 556 | |
b67740d3 JA |
557 | /* |
558 | * Add verification end_io handler, if asked to verify | |
559 | * a previously written file. | |
560 | */ | |
cc3fc855 | 561 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ) { |
b67740d3 | 562 | io_u->end_io = verify_io_u; |
d8fab1b6 | 563 | td_set_runstate(td, TD_VERIFYING); |
b29ee5b3 JA |
564 | } else if (in_ramp_time(td)) |
565 | td_set_runstate(td, TD_RAMP); | |
566 | else | |
d8fab1b6 | 567 | td_set_runstate(td, TD_RUNNING); |
b67740d3 | 568 | |
11786802 | 569 | ret = td_io_queue(td, io_u); |
36167d82 JA |
570 | switch (ret) { |
571 | case FIO_Q_COMPLETED: | |
5451792e JA |
572 | if (io_u->error) |
573 | ret = -io_u->error; | |
9e9d164e | 574 | else if (io_u->resid) { |
36167d82 | 575 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 576 | struct fio_file *f = io_u->file; |
36167d82 | 577 | |
9e9d164e JA |
578 | /* |
579 | * zero read, fail | |
580 | */ | |
581 | if (!bytes) { | |
41d9f0fd | 582 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
583 | put_io_u(td, io_u); |
584 | break; | |
585 | } | |
586 | ||
cec6b55d | 587 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 588 | io_u->xfer_buf += bytes; |
5a7c5680 JA |
589 | io_u->offset += bytes; |
590 | ||
30061b97 JA |
591 | td->ts.short_io_u[io_u->ddir]++; |
592 | ||
d460eb31 | 593 | if (io_u->offset == f->real_file_size) |
5a7c5680 JA |
594 | goto sync_done; |
595 | ||
11786802 JA |
596 | requeue_io_u(td, &io_u); |
597 | } else { | |
5a7c5680 | 598 | sync_done: |
581e7141 JA |
599 | if (__should_check_rate(td, 0) || |
600 | __should_check_rate(td, 1)) | |
993bf48b JA |
601 | fio_gettime(&comp_time, NULL); |
602 | ||
581e7141 JA |
603 | ret = io_u_sync_complete(td, io_u, bytes_done); |
604 | if (ret < 0) | |
605 | break; | |
cec6b55d | 606 | } |
36167d82 JA |
607 | break; |
608 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
609 | /* |
610 | * if the engine doesn't have a commit hook, | |
611 | * the io_u is really queued. if it does have such | |
612 | * a hook, it has to call io_u_queued() itself. | |
613 | */ | |
614 | if (td->io_ops->commit == NULL) | |
615 | io_u_queued(td, io_u); | |
36167d82 | 616 | break; |
755200a3 JA |
617 | case FIO_Q_BUSY: |
618 | requeue_io_u(td, &io_u); | |
5451792e JA |
619 | ret2 = td_io_commit(td); |
620 | if (ret2 < 0) | |
621 | ret = ret2; | |
755200a3 | 622 | break; |
36167d82 JA |
623 | default: |
624 | assert(ret < 0); | |
625 | put_io_u(td, io_u); | |
626 | break; | |
ebac4655 JA |
627 | } |
628 | ||
99784632 | 629 | if (ret < 0 || td->error) |
36167d82 JA |
630 | break; |
631 | ||
97601024 JA |
632 | /* |
633 | * See if we need to complete some commands | |
634 | */ | |
4950421a JA |
635 | full = queue_full(td) || ret == FIO_Q_BUSY; |
636 | if (full || !td->o.iodepth_batch_complete) { | |
637 | min_evts = td->o.iodepth_batch_complete; | |
638 | if (full && !min_evts) | |
36167d82 | 639 | min_evts = 1; |
4950421a | 640 | |
581e7141 JA |
641 | if (__should_check_rate(td, 0) || |
642 | __should_check_rate(td, 1)) | |
993bf48b | 643 | fio_gettime(&comp_time, NULL); |
4950421a JA |
644 | |
645 | do { | |
581e7141 JA |
646 | ret = io_u_queued_complete(td, min_evts, bytes_done); |
647 | if (ret < 0) | |
4950421a JA |
648 | break; |
649 | ||
4950421a | 650 | } while (full && (td->cur_depth > td->o.iodepth_low)); |
ebac4655 JA |
651 | } |
652 | ||
4950421a JA |
653 | if (ret < 0) |
654 | break; | |
581e7141 | 655 | if (!(bytes_done[0] + bytes_done[1])) |
97601024 JA |
656 | continue; |
657 | ||
581e7141 JA |
658 | if (!in_ramp_time(td) && should_check_rate(td, bytes_done)) { |
659 | if (check_min_rate(td, &comp_time, bytes_done)) { | |
721938ae JA |
660 | if (exitall_on_terminate) |
661 | terminate_threads(td->groupid); | |
662 | td_verror(td, EIO, "check_min_rate"); | |
663 | break; | |
664 | } | |
ebac4655 JA |
665 | } |
666 | ||
2dc1bbeb | 667 | if (td->o.thinktime) { |
9c1f7434 JA |
668 | unsigned long long b; |
669 | ||
670 | b = td->io_blocks[0] + td->io_blocks[1]; | |
2dc1bbeb | 671 | if (!(b % td->o.thinktime_blocks)) { |
48097d5c JA |
672 | int left; |
673 | ||
2dc1bbeb | 674 | if (td->o.thinktime_spin) |
6dd6f2cd | 675 | usec_spin(td->o.thinktime_spin); |
48097d5c | 676 | |
2dc1bbeb | 677 | left = td->o.thinktime - td->o.thinktime_spin; |
48097d5c JA |
678 | if (left) |
679 | usec_sleep(td, left); | |
680 | } | |
9c1f7434 | 681 | } |
ebac4655 JA |
682 | } |
683 | ||
aa31f1f1 SL |
684 | if (td->o.fill_device && td->error == ENOSPC) { |
685 | td->error = 0; | |
686 | td->terminate = 1; | |
687 | } | |
4d2413c6 | 688 | if (!td->error) { |
3d7c391d JA |
689 | struct fio_file *f; |
690 | ||
c01c0395 JA |
691 | i = td->cur_depth; |
692 | if (i) | |
581e7141 | 693 | ret = io_u_queued_complete(td, i, NULL); |
ebac4655 | 694 | |
2dc1bbeb | 695 | if (should_fsync(td) && td->o.end_fsync) { |
84585003 | 696 | td_set_runstate(td, TD_FSYNCING); |
3d7b485f JA |
697 | |
698 | for_each_file(td, f, i) { | |
d6aed795 | 699 | if (!fio_file_open(f)) |
3d7b485f | 700 | continue; |
858a3d47 | 701 | fio_io_sync(td, f); |
3d7b485f | 702 | } |
84585003 | 703 | } |
c01c0395 JA |
704 | } else |
705 | cleanup_pending_aio(td); | |
2ba1c290 JA |
706 | |
707 | /* | |
708 | * stop job if we failed doing any IO | |
709 | */ | |
710 | if ((td->this_io_bytes[0] + td->this_io_bytes[1]) == 0) | |
711 | td->done = 1; | |
ebac4655 JA |
712 | } |
713 | ||
ebac4655 JA |
714 | static void cleanup_io_u(struct thread_data *td) |
715 | { | |
01743ee1 | 716 | struct flist_head *entry, *n; |
ebac4655 JA |
717 | struct io_u *io_u; |
718 | ||
01743ee1 JA |
719 | flist_for_each_safe(entry, n, &td->io_u_freelist) { |
720 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 721 | |
01743ee1 | 722 | flist_del(&io_u->list); |
ebac4655 JA |
723 | free(io_u); |
724 | } | |
725 | ||
2f9ade3c | 726 | free_io_mem(td); |
ebac4655 JA |
727 | } |
728 | ||
729 | static int init_io_u(struct thread_data *td) | |
730 | { | |
731 | struct io_u *io_u; | |
a00735e6 | 732 | unsigned int max_bs; |
eb7ccf38 | 733 | int cl_align, i, max_units; |
ebac4655 JA |
734 | char *p; |
735 | ||
1e3c09af | 736 | max_units = td->o.iodepth; |
2dc1bbeb | 737 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
5ec10eaa JA |
738 | td->orig_buffer_size = (unsigned long long) max_bs |
739 | * (unsigned long long) max_units; | |
740 | ||
741 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { | |
742 | unsigned long bs; | |
74b025b0 | 743 | |
5ec10eaa JA |
744 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; |
745 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); | |
746 | } | |
ebac4655 | 747 | |
c3990645 JA |
748 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { |
749 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
750 | return 1; | |
751 | } | |
752 | ||
2f9ade3c JA |
753 | if (allocate_io_mem(td)) |
754 | return 1; | |
ebac4655 | 755 | |
b3f378e9 JA |
756 | if (td->o.odirect) |
757 | p = ALIGN(td->orig_buffer); | |
758 | else | |
759 | p = td->orig_buffer; | |
760 | ||
eb7ccf38 JA |
761 | cl_align = os_cache_line_size(); |
762 | ||
ebac4655 | 763 | for (i = 0; i < max_units; i++) { |
eb7ccf38 JA |
764 | void *ptr; |
765 | ||
db1cd90b JA |
766 | if (td->terminate) |
767 | return 1; | |
eb7ccf38 JA |
768 | |
769 | if (posix_memalign(&ptr, cl_align, sizeof(*io_u))) { | |
770 | log_err("fio: posix_memalign=%s\n", strerror(errno)); | |
771 | break; | |
772 | } | |
773 | ||
774 | io_u = ptr; | |
ebac4655 | 775 | memset(io_u, 0, sizeof(*io_u)); |
01743ee1 | 776 | INIT_FLIST_HEAD(&io_u->list); |
ebac4655 | 777 | |
b4c5e1ac JA |
778 | if (!(td->io_ops->flags & FIO_NOIO)) { |
779 | io_u->buf = p + max_bs * i; | |
e9459e5a | 780 | |
5973cafb JA |
781 | if (td_write(td) && !td->o.refill_buffers) |
782 | io_u_fill_buffer(td, io_u, max_bs); | |
b4c5e1ac | 783 | } |
6b9cea23 | 784 | |
b1ff3403 | 785 | io_u->index = i; |
0c6e7517 | 786 | io_u->flags = IO_U_F_FREE; |
01743ee1 | 787 | flist_add(&io_u->list, &td->io_u_freelist); |
ebac4655 JA |
788 | } |
789 | ||
790 | return 0; | |
791 | } | |
792 | ||
da86774e JA |
793 | static int switch_ioscheduler(struct thread_data *td) |
794 | { | |
795 | char tmp[256], tmp2[128]; | |
796 | FILE *f; | |
797 | int ret; | |
798 | ||
ba0fbe10 | 799 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
800 | return 0; |
801 | ||
da86774e JA |
802 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
803 | ||
804 | f = fopen(tmp, "r+"); | |
805 | if (!f) { | |
cbf5c1d7 | 806 | if (errno == ENOENT) { |
5ec10eaa JA |
807 | log_err("fio: os or kernel doesn't support IO scheduler" |
808 | " switching\n"); | |
cbf5c1d7 JA |
809 | return 0; |
810 | } | |
811 | td_verror(td, errno, "fopen iosched"); | |
da86774e JA |
812 | return 1; |
813 | } | |
814 | ||
815 | /* | |
816 | * Set io scheduler. | |
817 | */ | |
2dc1bbeb | 818 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); |
da86774e | 819 | if (ferror(f) || ret != 1) { |
e1161c32 | 820 | td_verror(td, errno, "fwrite"); |
da86774e JA |
821 | fclose(f); |
822 | return 1; | |
823 | } | |
824 | ||
825 | rewind(f); | |
826 | ||
827 | /* | |
828 | * Read back and check that the selected scheduler is now the default. | |
829 | */ | |
830 | ret = fread(tmp, 1, sizeof(tmp), f); | |
831 | if (ferror(f) || ret < 0) { | |
e1161c32 | 832 | td_verror(td, errno, "fread"); |
da86774e JA |
833 | fclose(f); |
834 | return 1; | |
835 | } | |
836 | ||
2dc1bbeb | 837 | sprintf(tmp2, "[%s]", td->o.ioscheduler); |
da86774e | 838 | if (!strstr(tmp, tmp2)) { |
2dc1bbeb | 839 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); |
e1161c32 | 840 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
841 | fclose(f); |
842 | return 1; | |
843 | } | |
844 | ||
845 | fclose(f); | |
846 | return 0; | |
847 | } | |
848 | ||
492158cf JA |
849 | static int keep_running(struct thread_data *td) |
850 | { | |
851 | unsigned long long io_done; | |
852 | ||
20e354ef JA |
853 | if (td->done) |
854 | return 0; | |
492158cf JA |
855 | if (td->o.time_based) |
856 | return 1; | |
857 | if (td->o.loops) { | |
858 | td->o.loops--; | |
859 | return 1; | |
860 | } | |
861 | ||
5ec10eaa JA |
862 | io_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE] |
863 | + td->io_skip_bytes; | |
492158cf JA |
864 | if (io_done < td->o.size) |
865 | return 1; | |
866 | ||
867 | return 0; | |
868 | } | |
869 | ||
b29ee5b3 | 870 | static void reset_io_counters(struct thread_data *td) |
ebac4655 | 871 | { |
756867bd | 872 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 873 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 874 | td->zone_bytes = 0; |
581e7141 JA |
875 | td->rate_bytes[0] = td->rate_bytes[1] = 0; |
876 | td->rate_blocks[0] = td->rate_blocks[1] = 0; | |
ebac4655 | 877 | |
c1324df1 JA |
878 | td->last_was_sync = 0; |
879 | ||
2ba1c290 JA |
880 | /* |
881 | * reset file done count if we are to start over | |
882 | */ | |
883 | if (td->o.time_based || td->o.loops) | |
48f5abd3 | 884 | td->nr_done_files = 0; |
5bfc35d7 JA |
885 | |
886 | /* | |
887 | * Set the same seed to get repeatable runs | |
888 | */ | |
889 | td_fill_rand_seeds(td); | |
b29ee5b3 JA |
890 | } |
891 | ||
892 | void reset_all_stats(struct thread_data *td) | |
893 | { | |
894 | struct timeval tv; | |
895 | int i; | |
896 | ||
897 | reset_io_counters(td); | |
898 | ||
899 | for (i = 0; i < 2; i++) { | |
900 | td->io_bytes[i] = 0; | |
901 | td->io_blocks[i] = 0; | |
902 | td->io_issues[i] = 0; | |
903 | td->ts.total_io_u[i] = 0; | |
904 | } | |
905 | ||
906 | fio_gettime(&tv, NULL); | |
907 | memcpy(&td->epoch, &tv, sizeof(tv)); | |
908 | memcpy(&td->start, &tv, sizeof(tv)); | |
909 | } | |
910 | ||
df9c26b1 | 911 | static void clear_io_state(struct thread_data *td) |
b29ee5b3 JA |
912 | { |
913 | struct fio_file *f; | |
914 | unsigned int i; | |
b29ee5b3 JA |
915 | |
916 | reset_io_counters(td); | |
281f9b63 | 917 | |
24ffd2c2 | 918 | close_files(td); |
df9c26b1 | 919 | for_each_file(td, f, i) |
d6aed795 | 920 | fio_file_clear_done(f); |
ebac4655 JA |
921 | } |
922 | ||
398e8c4d JA |
923 | static int exec_string(const char *string) |
924 | { | |
925 | int ret, newlen = strlen(string) + 1 + 8; | |
926 | char *str; | |
927 | ||
928 | str = malloc(newlen); | |
929 | sprintf(str, "sh -c %s", string); | |
930 | ||
931 | ret = system(str); | |
932 | if (ret == -1) | |
933 | log_err("fio: exec of cmd <%s> failed\n", str); | |
934 | ||
935 | free(str); | |
936 | return ret; | |
937 | } | |
938 | ||
906c8d75 JA |
939 | /* |
940 | * Entry point for the thread based jobs. The process based jobs end up | |
941 | * here as well, after a little setup. | |
942 | */ | |
ebac4655 JA |
943 | static void *thread_main(void *data) |
944 | { | |
10927316 | 945 | unsigned long long runtime[2], elapsed; |
ebac4655 | 946 | struct thread_data *td = data; |
a978ba68 | 947 | int clear_state; |
ebac4655 | 948 | |
2dc1bbeb | 949 | if (!td->o.use_thread) |
ebac4655 JA |
950 | setsid(); |
951 | ||
952 | td->pid = getpid(); | |
953 | ||
5921e80c | 954 | dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); |
ee56ad50 | 955 | |
01743ee1 JA |
956 | INIT_FLIST_HEAD(&td->io_u_freelist); |
957 | INIT_FLIST_HEAD(&td->io_u_busylist); | |
958 | INIT_FLIST_HEAD(&td->io_u_requeues); | |
959 | INIT_FLIST_HEAD(&td->io_log_list); | |
960 | INIT_FLIST_HEAD(&td->io_hist_list); | |
bb5d7d0b | 961 | td->io_hist_tree = RB_ROOT; |
aea47d44 | 962 | |
db1cd90b | 963 | td_set_runstate(td, TD_INITIALIZED); |
29adda3c | 964 | dprint(FD_MUTEX, "up startup_mutex\n"); |
cdd18ad8 | 965 | fio_mutex_up(startup_mutex); |
29adda3c | 966 | dprint(FD_MUTEX, "wait on td->mutex\n"); |
cdd18ad8 | 967 | fio_mutex_down(td->mutex); |
29adda3c | 968 | dprint(FD_MUTEX, "done waiting on td->mutex\n"); |
db1cd90b JA |
969 | |
970 | /* | |
cdd18ad8 | 971 | * the ->mutex mutex is now no longer used, close it to avoid |
db1cd90b JA |
972 | * eating a file descriptor |
973 | */ | |
cdd18ad8 | 974 | fio_mutex_remove(td->mutex); |
db1cd90b | 975 | |
d84f8d49 JA |
976 | /* |
977 | * May alter parameters that init_io_u() will use, so we need to | |
978 | * do this first. | |
979 | */ | |
980 | if (init_iolog(td)) | |
981 | goto err; | |
982 | ||
ebac4655 | 983 | if (init_io_u(td)) |
db1cd90b | 984 | goto err; |
ebac4655 | 985 | |
375b2695 | 986 | if (td->o.cpumask_set && fio_setaffinity(td) == -1) { |
e1161c32 | 987 | td_verror(td, errno, "cpu_set_affinity"); |
db1cd90b | 988 | goto err; |
ebac4655 JA |
989 | } |
990 | ||
f484470b JA |
991 | /* |
992 | * If we have a gettimeofday() thread, make sure we exclude that | |
993 | * thread from this job | |
994 | */ | |
be4ecfdf | 995 | if (td->o.gtod_cpu) { |
be4ecfdf JA |
996 | fio_cpu_clear(&td->o.cpumask, td->o.gtod_cpu); |
997 | if (fio_setaffinity(td) == -1) { | |
998 | td_verror(td, errno, "cpu_set_affinity"); | |
999 | goto err; | |
1000 | } | |
1001 | } | |
1002 | ||
ac684785 | 1003 | if (td->ioprio_set) { |
ebac4655 | 1004 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
e1161c32 | 1005 | td_verror(td, errno, "ioprio_set"); |
db1cd90b | 1006 | goto err; |
ebac4655 JA |
1007 | } |
1008 | } | |
1009 | ||
2dc1bbeb | 1010 | if (nice(td->o.nice) == -1) { |
e1161c32 | 1011 | td_verror(td, errno, "nice"); |
db1cd90b | 1012 | goto err; |
b6f4d880 JA |
1013 | } |
1014 | ||
2dc1bbeb | 1015 | if (td->o.ioscheduler && switch_ioscheduler(td)) |
db1cd90b | 1016 | goto err; |
37f56873 | 1017 | |
2dc1bbeb | 1018 | if (!td->o.create_serialize && setup_files(td)) |
ebac4655 JA |
1019 | goto err; |
1020 | ||
7d6c5283 JA |
1021 | if (td_io_init(td)) |
1022 | goto err; | |
1023 | ||
68727076 JA |
1024 | if (init_random_map(td)) |
1025 | goto err; | |
1026 | ||
2dc1bbeb | 1027 | if (td->o.exec_prerun) { |
398e8c4d | 1028 | if (exec_string(td->o.exec_prerun)) |
69cfd7e0 JA |
1029 | goto err; |
1030 | } | |
4e0ba8af | 1031 | |
afad68f7 ZY |
1032 | if (td->o.pre_read) { |
1033 | if (pre_read_files(td) < 0) | |
1034 | goto err; | |
1035 | } | |
1036 | ||
69008999 | 1037 | fio_gettime(&td->epoch, NULL); |
756867bd | 1038 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 JA |
1039 | |
1040 | runtime[0] = runtime[1] = 0; | |
a978ba68 | 1041 | clear_state = 0; |
492158cf | 1042 | while (keep_running(td)) { |
02bcaa8c | 1043 | fio_gettime(&td->start, NULL); |
756867bd | 1044 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
993bf48b | 1045 | memcpy(&td->tv_cache, &td->start, sizeof(td->start)); |
ebac4655 | 1046 | |
cf2dd8d6 | 1047 | if (td->o.ratemin[0] || td->o.ratemin[1]) |
5ec10eaa JA |
1048 | memcpy(&td->lastrate, &td->ts.stat_sample_time, |
1049 | sizeof(td->lastrate)); | |
ebac4655 | 1050 | |
df9c26b1 JA |
1051 | if (clear_state) |
1052 | clear_io_state(td); | |
a978ba68 | 1053 | |
ebac4655 JA |
1054 | prune_io_piece_log(td); |
1055 | ||
ba0fbe10 | 1056 | do_io(td); |
ebac4655 | 1057 | |
a978ba68 JA |
1058 | clear_state = 1; |
1059 | ||
38d77cae | 1060 | if (td_read(td) && td->io_bytes[DDIR_READ]) { |
0a4957c6 | 1061 | elapsed = utime_since_now(&td->start); |
38d77cae JA |
1062 | runtime[DDIR_READ] += elapsed; |
1063 | } | |
1064 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { | |
0a4957c6 | 1065 | elapsed = utime_since_now(&td->start); |
38d77cae JA |
1066 | runtime[DDIR_WRITE] += elapsed; |
1067 | } | |
5ec10eaa | 1068 | |
ebac4655 JA |
1069 | if (td->error || td->terminate) |
1070 | break; | |
1071 | ||
e84c73a8 SL |
1072 | if (!td->o.do_verify || |
1073 | td->o.verify == VERIFY_NONE || | |
b67740d3 | 1074 | (td->io_ops->flags & FIO_UNIDIR)) |
ebac4655 JA |
1075 | continue; |
1076 | ||
df9c26b1 | 1077 | clear_io_state(td); |
a978ba68 | 1078 | |
02bcaa8c | 1079 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
1080 | |
1081 | do_verify(td); | |
1082 | ||
69008999 | 1083 | runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
1084 | |
1085 | if (td->error || td->terminate) | |
1086 | break; | |
1087 | } | |
1088 | ||
36dff966 | 1089 | update_rusage_stat(td); |
47f0cc48 YHJT |
1090 | td->ts.runtime[0] = (runtime[0] + 999) / 1000; |
1091 | td->ts.runtime[1] = (runtime[1] + 999) / 1000; | |
756867bd JA |
1092 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
1093 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
1094 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
1095 | ||
d2bbb8d9 | 1096 | fio_mutex_down(writeout_mutex); |
e3cedca7 | 1097 | if (td->ts.bw_log) { |
f484470b JA |
1098 | if (td->o.bw_log_file) { |
1099 | finish_log_named(td, td->ts.bw_log, | |
1100 | td->o.bw_log_file, "bw"); | |
1101 | } else | |
e3cedca7 JA |
1102 | finish_log(td, td->ts.bw_log, "bw"); |
1103 | } | |
1104 | if (td->ts.slat_log) { | |
f484470b JA |
1105 | if (td->o.lat_log_file) { |
1106 | finish_log_named(td, td->ts.slat_log, | |
1ca95738 | 1107 | td->o.lat_log_file, "slat"); |
f484470b | 1108 | } else |
e3cedca7 JA |
1109 | finish_log(td, td->ts.slat_log, "slat"); |
1110 | } | |
1111 | if (td->ts.clat_log) { | |
f484470b JA |
1112 | if (td->o.lat_log_file) { |
1113 | finish_log_named(td, td->ts.clat_log, | |
1114 | td->o.lat_log_file, "clat"); | |
1115 | } else | |
e3cedca7 JA |
1116 | finish_log(td, td->ts.clat_log, "clat"); |
1117 | } | |
d2bbb8d9 | 1118 | fio_mutex_up(writeout_mutex); |
398e8c4d JA |
1119 | if (td->o.exec_postrun) |
1120 | exec_string(td->o.exec_postrun); | |
ebac4655 JA |
1121 | |
1122 | if (exitall_on_terminate) | |
390c40e2 | 1123 | terminate_threads(td->groupid); |
ebac4655 JA |
1124 | |
1125 | err: | |
5bf13a5a | 1126 | if (td->error) |
5921e80c | 1127 | printf("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, |
5ec10eaa | 1128 | td->verror); |
24ffd2c2 | 1129 | close_and_free_files(td); |
2866c82d | 1130 | close_ioengine(td); |
ebac4655 | 1131 | cleanup_io_u(td); |
f29b25a3 | 1132 | |
d2ce18b5 JA |
1133 | if (td->o.cpumask_set) { |
1134 | int ret = fio_cpuset_exit(&td->o.cpumask); | |
1135 | ||
1136 | td_verror(td, ret, "fio_cpuset_exit"); | |
1137 | } | |
4e78e405 | 1138 | |
f29b25a3 JA |
1139 | /* |
1140 | * do this very late, it will log file closing as well | |
1141 | */ | |
1142 | if (td->o.write_iolog_file) | |
1143 | write_iolog_close(td); | |
1144 | ||
d23bb327 | 1145 | options_mem_free(td); |
ebac4655 | 1146 | td_set_runstate(td, TD_EXITED); |
43d76807 | 1147 | return (void *) (unsigned long) td->error; |
ebac4655 JA |
1148 | } |
1149 | ||
906c8d75 JA |
1150 | /* |
1151 | * We cannot pass the td data into a forked process, so attach the td and | |
1152 | * pass it to the thread worker. | |
1153 | */ | |
a6418147 | 1154 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
1155 | { |
1156 | struct thread_data *td; | |
a6418147 | 1157 | void *data, *ret; |
ebac4655 JA |
1158 | |
1159 | data = shmat(shmid, NULL, 0); | |
1160 | if (data == (void *) -1) { | |
a6418147 JA |
1161 | int __err = errno; |
1162 | ||
ebac4655 | 1163 | perror("shmat"); |
a6418147 | 1164 | return __err; |
ebac4655 JA |
1165 | } |
1166 | ||
1167 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 1168 | ret = thread_main(td); |
ebac4655 | 1169 | shmdt(data); |
43d76807 | 1170 | return (int) (unsigned long) ret; |
ebac4655 JA |
1171 | } |
1172 | ||
906c8d75 JA |
1173 | /* |
1174 | * Run over the job map and reap the threads that have exited, if any. | |
1175 | */ | |
ebac4655 JA |
1176 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
1177 | { | |
34572e28 | 1178 | struct thread_data *td; |
1f809d15 | 1179 | int i, cputhreads, realthreads, pending, status, ret; |
ebac4655 JA |
1180 | |
1181 | /* | |
1182 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1183 | */ | |
1f809d15 | 1184 | realthreads = pending = cputhreads = 0; |
34572e28 | 1185 | for_each_td(td, i) { |
3707f45b | 1186 | int flags = 0; |
a2f77c9f | 1187 | |
84585003 JA |
1188 | /* |
1189 | * ->io_ops is NULL for a thread that has closed its | |
1190 | * io engine | |
1191 | */ | |
ba0fbe10 | 1192 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 | 1193 | cputhreads++; |
1f809d15 JA |
1194 | else |
1195 | realthreads++; | |
b990b5c0 | 1196 | |
a1dedc1f AC |
1197 | if (!td->pid) { |
1198 | pending++; | |
1199 | continue; | |
1200 | } | |
1201 | if (td->runstate == TD_REAPED) | |
a2f77c9f | 1202 | continue; |
2dc1bbeb | 1203 | if (td->o.use_thread) { |
3707f45b JA |
1204 | if (td->runstate == TD_EXITED) { |
1205 | td_set_runstate(td, TD_REAPED); | |
1206 | goto reaped; | |
1207 | } | |
1208 | continue; | |
1209 | } | |
a2f77c9f JA |
1210 | |
1211 | flags = WNOHANG; | |
1212 | if (td->runstate == TD_EXITED) | |
1213 | flags = 0; | |
1214 | ||
1215 | /* | |
1216 | * check if someone quit or got killed in an unusual way | |
1217 | */ | |
1218 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 1219 | if (ret < 0) { |
a2f77c9f | 1220 | if (errno == ECHILD) { |
5921e80c JA |
1221 | log_err("fio: pid=%d disappeared %d\n", |
1222 | (int) td->pid, td->runstate); | |
a2f77c9f JA |
1223 | td_set_runstate(td, TD_REAPED); |
1224 | goto reaped; | |
1225 | } | |
1226 | perror("waitpid"); | |
1227 | } else if (ret == td->pid) { | |
1228 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
1229 | int sig = WTERMSIG(status); |
1230 | ||
d9244941 | 1231 | if (sig != SIGQUIT) |
5ec10eaa | 1232 | log_err("fio: pid=%d, got signal=%d\n", |
5921e80c | 1233 | (int) td->pid, sig); |
fab6aa71 JA |
1234 | td_set_runstate(td, TD_REAPED); |
1235 | goto reaped; | |
1236 | } | |
a2f77c9f JA |
1237 | if (WIFEXITED(status)) { |
1238 | if (WEXITSTATUS(status) && !td->error) | |
1239 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 1240 | |
a2f77c9f JA |
1241 | td_set_runstate(td, TD_REAPED); |
1242 | goto reaped; | |
a6418147 JA |
1243 | } |
1244 | } | |
ebac4655 | 1245 | |
a2f77c9f JA |
1246 | /* |
1247 | * thread is not dead, continue | |
1248 | */ | |
e48676ba | 1249 | pending++; |
a2f77c9f | 1250 | continue; |
fab6aa71 | 1251 | reaped: |
ebac4655 | 1252 | (*nr_running)--; |
581e7141 JA |
1253 | (*m_rate) -= (td->o.ratemin[0] + td->o.ratemin[1]); |
1254 | (*t_rate) -= (td->o.rate[0] + td->o.rate[1]); | |
6f88bcb0 JA |
1255 | if (!td->pid) |
1256 | pending--; | |
a2f77c9f JA |
1257 | |
1258 | if (td->error) | |
1259 | exit_value++; | |
d3eeeabc JA |
1260 | |
1261 | done_secs += mtime_since_now(&td->epoch) / 1000; | |
ebac4655 | 1262 | } |
b990b5c0 | 1263 | |
1f809d15 | 1264 | if (*nr_running == cputhreads && !pending && realthreads) |
390c40e2 | 1265 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
1266 | } |
1267 | ||
be4ecfdf JA |
1268 | static void *gtod_thread_main(void *data) |
1269 | { | |
1270 | fio_mutex_up(startup_mutex); | |
1271 | ||
1272 | /* | |
1273 | * As long as we have jobs around, update the clock. It would be nice | |
1274 | * to have some way of NOT hammering that CPU with gettimeofday(), | |
1275 | * but I'm not sure what to use outside of a simple CPU nop to relax | |
1276 | * it - we don't want to lose precision. | |
1277 | */ | |
1278 | while (threads) { | |
1279 | fio_gtod_update(); | |
1280 | nop; | |
1281 | } | |
1282 | ||
1283 | return NULL; | |
1284 | } | |
1285 | ||
1286 | static int fio_start_gtod_thread(void) | |
1287 | { | |
f42c153d JA |
1288 | int ret; |
1289 | ||
1290 | ret = pthread_create(>od_thread, NULL, gtod_thread_main, NULL); | |
1291 | if (ret) { | |
1292 | log_err("Can't create gtod thread: %s\n", strerror(ret)); | |
be4ecfdf JA |
1293 | return 1; |
1294 | } | |
f42c153d JA |
1295 | |
1296 | ret = pthread_detach(gtod_thread); | |
1297 | if (ret) { | |
1298 | log_err("Can't detatch gtod thread: %s\n", strerror(ret)); | |
be4ecfdf JA |
1299 | return 1; |
1300 | } | |
1301 | ||
29adda3c | 1302 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
be4ecfdf | 1303 | fio_mutex_down(startup_mutex); |
29adda3c | 1304 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
be4ecfdf JA |
1305 | return 0; |
1306 | } | |
1307 | ||
906c8d75 JA |
1308 | /* |
1309 | * Main function for kicking off and reaping jobs, as needed. | |
1310 | */ | |
ebac4655 JA |
1311 | static void run_threads(void) |
1312 | { | |
ebac4655 JA |
1313 | struct thread_data *td; |
1314 | unsigned long spent; | |
1315 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 1316 | |
2f9ade3c JA |
1317 | if (fio_pin_memory()) |
1318 | return; | |
ebac4655 | 1319 | |
be4ecfdf JA |
1320 | if (fio_gtod_offload && fio_start_gtod_thread()) |
1321 | return; | |
1322 | ||
c6ae0a5b | 1323 | if (!terse_output) { |
9cedf167 JA |
1324 | printf("Starting "); |
1325 | if (nr_thread) | |
5ec10eaa JA |
1326 | printf("%d thread%s", nr_thread, |
1327 | nr_thread > 1 ? "s" : ""); | |
9cedf167 JA |
1328 | if (nr_process) { |
1329 | if (nr_thread) | |
1330 | printf(" and "); | |
5ec10eaa JA |
1331 | printf("%d process%s", nr_process, |
1332 | nr_process > 1 ? "es" : ""); | |
9cedf167 JA |
1333 | } |
1334 | printf("\n"); | |
c6ae0a5b JA |
1335 | fflush(stdout); |
1336 | } | |
c04f7ec3 | 1337 | |
697a606c | 1338 | set_sig_handlers(); |
4efa970e | 1339 | |
ebac4655 JA |
1340 | todo = thread_number; |
1341 | nr_running = 0; | |
1342 | nr_started = 0; | |
1343 | m_rate = t_rate = 0; | |
1344 | ||
34572e28 | 1345 | for_each_td(td, i) { |
263e529f | 1346 | print_status_init(td->thread_number - 1); |
ebac4655 | 1347 | |
2dc1bbeb | 1348 | if (!td->o.create_serialize) { |
380cf265 | 1349 | init_disk_util(td); |
ebac4655 | 1350 | continue; |
380cf265 | 1351 | } |
ebac4655 JA |
1352 | |
1353 | /* | |
1354 | * do file setup here so it happens sequentially, | |
1355 | * we don't want X number of threads getting their | |
1356 | * client data interspersed on disk | |
1357 | */ | |
53cdc686 | 1358 | if (setup_files(td)) { |
5bf13a5a JA |
1359 | exit_value++; |
1360 | if (td->error) | |
5921e80c JA |
1361 | log_err("fio: pid=%d, err=%d/%s\n", |
1362 | (int) td->pid, td->error, td->verror); | |
ebac4655 JA |
1363 | td_set_runstate(td, TD_REAPED); |
1364 | todo--; | |
c69e8875 JA |
1365 | } else { |
1366 | struct fio_file *f; | |
1367 | unsigned int i; | |
1368 | ||
1369 | /* | |
1370 | * for sharing to work, each job must always open | |
1371 | * its own files. so close them, if we opened them | |
1372 | * for creation | |
1373 | */ | |
22a57ba8 JA |
1374 | for_each_file(td, f, i) { |
1375 | if (fio_file_open(f)) | |
1376 | td_io_close_file(td, f); | |
1377 | else | |
1378 | assert(f->fd == -1); | |
1379 | } | |
5ec10eaa | 1380 | } |
380cf265 JA |
1381 | |
1382 | init_disk_util(td); | |
ebac4655 JA |
1383 | } |
1384 | ||
a2f77c9f JA |
1385 | set_genesis_time(); |
1386 | ||
ebac4655 | 1387 | while (todo) { |
75154845 JA |
1388 | struct thread_data *map[MAX_JOBS]; |
1389 | struct timeval this_start; | |
1390 | int this_jobs = 0, left; | |
1391 | ||
ebac4655 JA |
1392 | /* |
1393 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1394 | */ | |
34572e28 | 1395 | for_each_td(td, i) { |
ebac4655 JA |
1396 | if (td->runstate != TD_NOT_CREATED) |
1397 | continue; | |
1398 | ||
1399 | /* | |
1400 | * never got a chance to start, killed by other | |
1401 | * thread for some reason | |
1402 | */ | |
1403 | if (td->terminate) { | |
1404 | todo--; | |
1405 | continue; | |
1406 | } | |
1407 | ||
2dc1bbeb | 1408 | if (td->o.start_delay) { |
263e529f | 1409 | spent = mtime_since_genesis(); |
ebac4655 | 1410 | |
2dc1bbeb | 1411 | if (td->o.start_delay * 1000 > spent) |
ebac4655 JA |
1412 | continue; |
1413 | } | |
1414 | ||
6f88bcb0 JA |
1415 | if (td->o.stonewall && (nr_started || nr_running)) { |
1416 | dprint(FD_PROCESS, "%s: stonewall wait\n", | |
1417 | td->o.name); | |
ebac4655 | 1418 | break; |
6f88bcb0 | 1419 | } |
ebac4655 | 1420 | |
75154845 JA |
1421 | /* |
1422 | * Set state to created. Thread will transition | |
1423 | * to TD_INITIALIZED when it's done setting up. | |
1424 | */ | |
ebac4655 | 1425 | td_set_runstate(td, TD_CREATED); |
75154845 | 1426 | map[this_jobs++] = td; |
ebac4655 JA |
1427 | nr_started++; |
1428 | ||
2dc1bbeb | 1429 | if (td->o.use_thread) { |
f42c153d JA |
1430 | int ret; |
1431 | ||
ee56ad50 | 1432 | dprint(FD_PROCESS, "will pthread_create\n"); |
f42c153d JA |
1433 | ret = pthread_create(&td->thread, NULL, |
1434 | thread_main, td); | |
1435 | if (ret) { | |
1436 | log_err("pthread_create: %s\n", | |
1437 | strerror(ret)); | |
ebac4655 | 1438 | nr_started--; |
c8bb6faf | 1439 | break; |
ebac4655 | 1440 | } |
f42c153d JA |
1441 | ret = pthread_detach(td->thread); |
1442 | if (ret) | |
1443 | log_err("pthread_detach: %s", | |
1444 | strerror(ret)); | |
ebac4655 | 1445 | } else { |
5e1d306e | 1446 | pid_t pid; |
ee56ad50 | 1447 | dprint(FD_PROCESS, "will fork\n"); |
5e1d306e JA |
1448 | pid = fork(); |
1449 | if (!pid) { | |
a6418147 JA |
1450 | int ret = fork_main(shm_id, i); |
1451 | ||
5e1d306e JA |
1452 | _exit(ret); |
1453 | } else if (i == fio_debug_jobno) | |
1454 | *fio_debug_jobp = pid; | |
ebac4655 | 1455 | } |
29adda3c | 1456 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
cdd18ad8 | 1457 | fio_mutex_down(startup_mutex); |
29adda3c | 1458 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
ebac4655 JA |
1459 | } |
1460 | ||
1461 | /* | |
75154845 JA |
1462 | * Wait for the started threads to transition to |
1463 | * TD_INITIALIZED. | |
ebac4655 | 1464 | */ |
02bcaa8c | 1465 | fio_gettime(&this_start, NULL); |
75154845 | 1466 | left = this_jobs; |
6ce15a32 | 1467 | while (left && !fio_abort) { |
75154845 JA |
1468 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1469 | break; | |
1470 | ||
1471 | usleep(100000); | |
1472 | ||
1473 | for (i = 0; i < this_jobs; i++) { | |
1474 | td = map[i]; | |
1475 | if (!td) | |
1476 | continue; | |
b6f4d880 | 1477 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1478 | map[i] = NULL; |
1479 | left--; | |
b6f4d880 JA |
1480 | } else if (td->runstate >= TD_EXITED) { |
1481 | map[i] = NULL; | |
1482 | left--; | |
1483 | todo--; | |
1484 | nr_running++; /* work-around... */ | |
75154845 JA |
1485 | } |
1486 | } | |
1487 | } | |
1488 | ||
1489 | if (left) { | |
3b70d7e5 | 1490 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1491 | for (i = 0; i < this_jobs; i++) { |
1492 | td = map[i]; | |
1493 | if (!td) | |
1494 | continue; | |
1495 | kill(td->pid, SIGTERM); | |
1496 | } | |
1497 | break; | |
1498 | } | |
1499 | ||
1500 | /* | |
b6f4d880 | 1501 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1502 | */ |
34572e28 | 1503 | for_each_td(td, i) { |
75154845 | 1504 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1505 | continue; |
1506 | ||
b29ee5b3 JA |
1507 | if (in_ramp_time(td)) |
1508 | td_set_runstate(td, TD_RAMP); | |
1509 | else | |
1510 | td_set_runstate(td, TD_RUNNING); | |
ebac4655 JA |
1511 | nr_running++; |
1512 | nr_started--; | |
581e7141 JA |
1513 | m_rate += td->o.ratemin[0] + td->o.ratemin[1]; |
1514 | t_rate += td->o.rate[0] + td->o.rate[1]; | |
75154845 | 1515 | todo--; |
cdd18ad8 | 1516 | fio_mutex_up(td->mutex); |
ebac4655 JA |
1517 | } |
1518 | ||
1519 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1520 | ||
1521 | if (todo) | |
1522 | usleep(100000); | |
1523 | } | |
1524 | ||
1525 | while (nr_running) { | |
1526 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1527 | usleep(10000); | |
1528 | } | |
1529 | ||
1530 | update_io_ticks(); | |
2f9ade3c | 1531 | fio_unpin_memory(); |
ebac4655 JA |
1532 | } |
1533 | ||
ebac4655 JA |
1534 | int main(int argc, char *argv[]) |
1535 | { | |
29d610e1 JA |
1536 | long ps; |
1537 | ||
2e5cdb11 JA |
1538 | sinit(); |
1539 | ||
dbe1125e JA |
1540 | /* |
1541 | * We need locale for number printing, if it isn't set then just | |
1542 | * go with the US format. | |
1543 | */ | |
1544 | if (!getenv("LC_NUMERIC")) | |
1545 | setlocale(LC_NUMERIC, "en_US"); | |
1546 | ||
ebac4655 JA |
1547 | if (parse_options(argc, argv)) |
1548 | return 1; | |
1549 | ||
4b472fa3 JA |
1550 | if (!thread_number) |
1551 | return 0; | |
ebac4655 | 1552 | |
29d610e1 JA |
1553 | ps = sysconf(_SC_PAGESIZE); |
1554 | if (ps < 0) { | |
1555 | log_err("Failed to get page size\n"); | |
1556 | return 1; | |
1557 | } | |
1558 | ||
cfc99db7 | 1559 | page_size = ps; |
29d610e1 JA |
1560 | page_mask = ps - 1; |
1561 | ||
bb3884d8 JA |
1562 | if (write_bw_log) { |
1563 | setup_log(&agg_io_log[DDIR_READ]); | |
1564 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1565 | } | |
1566 | ||
cdd18ad8 | 1567 | startup_mutex = fio_mutex_init(0); |
d2bbb8d9 | 1568 | writeout_mutex = fio_mutex_init(1); |
07739b57 | 1569 | |
a2f77c9f JA |
1570 | set_genesis_time(); |
1571 | ||
ccb0fa24 | 1572 | status_timer_arm(); |
ebac4655 JA |
1573 | |
1574 | run_threads(); | |
6ce15a32 | 1575 | |
bb3884d8 | 1576 | if (!fio_abort) { |
6ce15a32 | 1577 | show_run_stats(); |
bb3884d8 | 1578 | if (write_bw_log) { |
5ec10eaa JA |
1579 | __finish_log(agg_io_log[DDIR_READ], "agg-read_bw.log"); |
1580 | __finish_log(agg_io_log[DDIR_WRITE], | |
1581 | "agg-write_bw.log"); | |
bb3884d8 JA |
1582 | } |
1583 | } | |
ebac4655 | 1584 | |
cdd18ad8 | 1585 | fio_mutex_remove(startup_mutex); |
d2bbb8d9 | 1586 | fio_mutex_remove(writeout_mutex); |
437c9b71 | 1587 | return exit_value; |
ebac4655 | 1588 | } |