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; |
ebac4655 | 52 | |
cdd18ad8 | 53 | static struct fio_mutex *startup_mutex; |
6ce15a32 | 54 | static volatile int fio_abort; |
437c9b71 | 55 | static int exit_value; |
ebac4655 | 56 | |
bb3884d8 JA |
57 | struct io_log *agg_io_log[2]; |
58 | ||
ebac4655 | 59 | #define TERMINATE_ALL (-1) |
75154845 | 60 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 | 61 | |
6ce15a32 JA |
62 | static inline void td_set_runstate(struct thread_data *td, int runstate) |
63 | { | |
d8fab1b6 JA |
64 | if (td->runstate == runstate) |
65 | return; | |
66 | ||
bd6f78b2 JA |
67 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", td->pid, td->runstate, |
68 | runstate); | |
6ce15a32 JA |
69 | td->runstate = runstate; |
70 | } | |
71 | ||
390c40e2 | 72 | static void terminate_threads(int group_id) |
ebac4655 | 73 | { |
34572e28 | 74 | struct thread_data *td; |
ebac4655 JA |
75 | int i; |
76 | ||
34572e28 | 77 | for_each_td(td, i) { |
ebac4655 | 78 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
5ec10eaa JA |
79 | dprint(FD_PROCESS, "setting terminate on %d\n", |
80 | td->pid); | |
ad830ed7 JA |
81 | td->terminate = 1; |
82 | td->o.start_delay = 0; | |
83 | ||
7a93ab19 JA |
84 | /* |
85 | * if the thread is running, just let it exit | |
86 | */ | |
87 | if (td->runstate < TD_RUNNING) | |
c1302d44 | 88 | kill(td->pid, SIGQUIT); |
f63f7f3b JA |
89 | else { |
90 | struct ioengine_ops *ops = td->io_ops; | |
91 | ||
92 | if (ops && (ops->flags & FIO_SIGQUIT)) | |
93 | kill(td->pid, SIGQUIT); | |
94 | } | |
ebac4655 JA |
95 | } |
96 | } | |
97 | } | |
98 | ||
99 | static void sig_handler(int sig) | |
100 | { | |
101 | switch (sig) { | |
5ec10eaa JA |
102 | case SIGALRM: |
103 | update_io_ticks(); | |
104 | disk_util_timer_arm(); | |
105 | print_thread_status(); | |
106 | break; | |
107 | default: | |
108 | printf("\nfio: terminating on signal %d\n", sig); | |
109 | fflush(stdout); | |
110 | terminate_threads(TERMINATE_ALL); | |
111 | break; | |
ebac4655 JA |
112 | } |
113 | } | |
114 | ||
906c8d75 JA |
115 | /* |
116 | * Check if we are above the minimum rate given. | |
117 | */ | |
ebac4655 JA |
118 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
119 | { | |
0904200b | 120 | unsigned long long bytes = 0; |
4e991c23 | 121 | unsigned long iops = 0; |
ebac4655 JA |
122 | unsigned long spent; |
123 | unsigned long rate; | |
ebac4655 | 124 | |
780bf1a1 JA |
125 | /* |
126 | * No minimum rate set, always ok | |
127 | */ | |
2dc1bbeb | 128 | if (!td->o.ratemin && !td->o.rate_iops_min) |
780bf1a1 JA |
129 | return 0; |
130 | ||
ebac4655 JA |
131 | /* |
132 | * allow a 2 second settle period in the beginning | |
133 | */ | |
134 | if (mtime_since(&td->start, now) < 2000) | |
135 | return 0; | |
136 | ||
4e991c23 JA |
137 | if (td_read(td)) { |
138 | iops += td->io_blocks[DDIR_READ]; | |
0904200b | 139 | bytes += td->this_io_bytes[DDIR_READ]; |
4e991c23 JA |
140 | } |
141 | if (td_write(td)) { | |
142 | iops += td->io_blocks[DDIR_WRITE]; | |
0904200b | 143 | bytes += td->this_io_bytes[DDIR_WRITE]; |
4e991c23 | 144 | } |
0904200b | 145 | |
ebac4655 JA |
146 | /* |
147 | * if rate blocks is set, sample is running | |
148 | */ | |
4e991c23 | 149 | if (td->rate_bytes || td->rate_blocks) { |
ebac4655 | 150 | spent = mtime_since(&td->lastrate, now); |
2dc1bbeb | 151 | if (spent < td->o.ratecycle) |
ebac4655 JA |
152 | return 0; |
153 | ||
2dc1bbeb | 154 | if (td->o.rate) { |
4e991c23 JA |
155 | /* |
156 | * check bandwidth specified rate | |
157 | */ | |
158 | if (bytes < td->rate_bytes) { | |
5ec10eaa JA |
159 | log_err("%s: min rate %u not met\n", td->o.name, |
160 | td->o.ratemin); | |
4e991c23 JA |
161 | return 1; |
162 | } else { | |
163 | rate = (bytes - td->rate_bytes) / spent; | |
5ec10eaa JA |
164 | if (rate < td->o.ratemin || |
165 | bytes < td->rate_bytes) { | |
166 | log_err("%s: min rate %u not met, got" | |
167 | " %luKiB/sec\n", td->o.name, | |
168 | td->o.ratemin, rate); | |
4e991c23 JA |
169 | return 1; |
170 | } | |
171 | } | |
413dd459 | 172 | } else { |
4e991c23 JA |
173 | /* |
174 | * checks iops specified rate | |
175 | */ | |
2dc1bbeb | 176 | if (iops < td->o.rate_iops) { |
5ec10eaa JA |
177 | log_err("%s: min iops rate %u not met\n", |
178 | td->o.name, td->o.rate_iops); | |
413dd459 | 179 | return 1; |
4e991c23 JA |
180 | } else { |
181 | rate = (iops - td->rate_blocks) / spent; | |
5ec10eaa JA |
182 | if (rate < td->o.rate_iops_min || |
183 | iops < td->rate_blocks) { | |
184 | log_err("%s: min iops rate %u not met," | |
185 | " got %lu\n", td->o.name, | |
186 | td->o.rate_iops_min, | |
187 | rate); | |
4e991c23 | 188 | } |
413dd459 | 189 | } |
ebac4655 JA |
190 | } |
191 | } | |
192 | ||
0904200b | 193 | td->rate_bytes = bytes; |
4e991c23 | 194 | td->rate_blocks = iops; |
ebac4655 JA |
195 | memcpy(&td->lastrate, now, sizeof(*now)); |
196 | return 0; | |
197 | } | |
198 | ||
199 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
200 | { | |
2dc1bbeb | 201 | if (!td->o.timeout) |
ebac4655 | 202 | return 0; |
2dc1bbeb | 203 | if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) |
ebac4655 JA |
204 | return 1; |
205 | ||
206 | return 0; | |
207 | } | |
208 | ||
906c8d75 JA |
209 | /* |
210 | * When job exits, we can cancel the in-flight IO if we are using async | |
211 | * io. Attempt to do so. | |
212 | */ | |
ebac4655 JA |
213 | static void cleanup_pending_aio(struct thread_data *td) |
214 | { | |
ebac4655 | 215 | struct list_head *entry, *n; |
ebac4655 JA |
216 | struct io_u *io_u; |
217 | int r; | |
218 | ||
219 | /* | |
220 | * get immediately available events, if any | |
221 | */ | |
d7762cf8 | 222 | r = io_u_queued_complete(td, 0); |
b2fdda43 JA |
223 | if (r < 0) |
224 | return; | |
ebac4655 JA |
225 | |
226 | /* | |
227 | * now cancel remaining active events | |
228 | */ | |
2866c82d | 229 | if (td->io_ops->cancel) { |
ebac4655 JA |
230 | list_for_each_safe(entry, n, &td->io_u_busylist) { |
231 | io_u = list_entry(entry, struct io_u, list); | |
232 | ||
0c6e7517 JA |
233 | /* |
234 | * if the io_u isn't in flight, then that generally | |
235 | * means someone leaked an io_u. complain but fix | |
236 | * it up, so we don't stall here. | |
237 | */ | |
238 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
239 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 240 | put_io_u(td, io_u); |
0c6e7517 JA |
241 | } else { |
242 | r = td->io_ops->cancel(td, io_u); | |
243 | if (!r) | |
244 | put_io_u(td, io_u); | |
245 | } | |
ebac4655 JA |
246 | } |
247 | } | |
248 | ||
97601024 | 249 | if (td->cur_depth) |
d7762cf8 | 250 | r = io_u_queued_complete(td, td->cur_depth); |
ebac4655 JA |
251 | } |
252 | ||
858a3d47 JA |
253 | /* |
254 | * Helper to handle the final sync of a file. Works just like the normal | |
255 | * io path, just does everything sync. | |
256 | */ | |
257 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
258 | { | |
259 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
260 | int ret; |
261 | ||
262 | if (!io_u) | |
263 | return 1; | |
264 | ||
265 | io_u->ddir = DDIR_SYNC; | |
266 | io_u->file = f; | |
267 | ||
268 | if (td_io_prep(td, io_u)) { | |
269 | put_io_u(td, io_u); | |
270 | return 1; | |
271 | } | |
272 | ||
755200a3 | 273 | requeue: |
858a3d47 | 274 | ret = td_io_queue(td, io_u); |
36167d82 | 275 | if (ret < 0) { |
e1161c32 | 276 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 277 | put_io_u(td, io_u); |
858a3d47 | 278 | return 1; |
36167d82 | 279 | } else if (ret == FIO_Q_QUEUED) { |
d7762cf8 | 280 | if (io_u_queued_complete(td, 1) < 0) |
36167d82 | 281 | return 1; |
36167d82 JA |
282 | } else if (ret == FIO_Q_COMPLETED) { |
283 | if (io_u->error) { | |
e1161c32 | 284 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
285 | return 1; |
286 | } | |
858a3d47 | 287 | |
d7762cf8 | 288 | if (io_u_sync_complete(td, io_u) < 0) |
b2fdda43 | 289 | return 1; |
755200a3 JA |
290 | } else if (ret == FIO_Q_BUSY) { |
291 | if (td_io_commit(td)) | |
292 | return 1; | |
293 | goto requeue; | |
858a3d47 JA |
294 | } |
295 | ||
296 | return 0; | |
297 | } | |
298 | ||
906c8d75 | 299 | /* |
34403fb1 | 300 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
301 | * reads the blocks back in, and checks the crc/md5 of the data. |
302 | */ | |
1e97cce9 | 303 | static void do_verify(struct thread_data *td) |
ebac4655 | 304 | { |
53cdc686 | 305 | struct fio_file *f; |
36167d82 | 306 | struct io_u *io_u; |
af52b345 JA |
307 | int ret, min_events; |
308 | unsigned int i; | |
e5b401d4 JA |
309 | |
310 | /* | |
311 | * sync io first and invalidate cache, to make sure we really | |
312 | * read from disk. | |
313 | */ | |
314 | for_each_file(td, f, i) { | |
3d7b485f JA |
315 | if (!(f->flags & FIO_FILE_OPEN)) |
316 | continue; | |
b2fdda43 JA |
317 | if (fio_io_sync(td, f)) |
318 | break; | |
319 | if (file_invalidate_cache(td, f)) | |
320 | break; | |
e5b401d4 | 321 | } |
ebac4655 | 322 | |
b2fdda43 JA |
323 | if (td->error) |
324 | return; | |
325 | ||
ebac4655 JA |
326 | td_set_runstate(td, TD_VERIFYING); |
327 | ||
36167d82 JA |
328 | io_u = NULL; |
329 | while (!td->terminate) { | |
5451792e JA |
330 | int ret2; |
331 | ||
ebac4655 JA |
332 | io_u = __get_io_u(td); |
333 | if (!io_u) | |
334 | break; | |
335 | ||
069c2918 JA |
336 | if (runtime_exceeded(td, &io_u->start_time)) { |
337 | put_io_u(td, io_u); | |
90a87d4b | 338 | td->terminate = 1; |
02bcaa8c | 339 | break; |
069c2918 | 340 | } |
02bcaa8c | 341 | |
069c2918 JA |
342 | if (get_next_verify(td, io_u)) { |
343 | put_io_u(td, io_u); | |
ebac4655 | 344 | break; |
069c2918 | 345 | } |
ebac4655 | 346 | |
069c2918 JA |
347 | if (td_io_prep(td, io_u)) { |
348 | put_io_u(td, io_u); | |
53cdc686 | 349 | break; |
069c2918 | 350 | } |
d7762cf8 JA |
351 | |
352 | io_u->end_io = verify_io_u; | |
53cdc686 | 353 | |
11786802 | 354 | ret = td_io_queue(td, io_u); |
36167d82 JA |
355 | switch (ret) { |
356 | case FIO_Q_COMPLETED: | |
357 | if (io_u->error) | |
22819ec2 | 358 | ret = -io_u->error; |
9e9d164e | 359 | else if (io_u->resid) { |
36167d82 | 360 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 361 | struct fio_file *f = io_u->file; |
ebac4655 | 362 | |
9e9d164e JA |
363 | /* |
364 | * zero read, fail | |
365 | */ | |
366 | if (!bytes) { | |
367 | td_verror(td, ENODATA, "full resid"); | |
368 | put_io_u(td, io_u); | |
369 | break; | |
370 | } | |
8400d9b2 | 371 | |
36167d82 JA |
372 | io_u->xfer_buflen = io_u->resid; |
373 | io_u->xfer_buf += bytes; | |
8400d9b2 JA |
374 | io_u->offset += bytes; |
375 | ||
30061b97 JA |
376 | td->ts.short_io_u[io_u->ddir]++; |
377 | ||
d460eb31 | 378 | if (io_u->offset == f->real_file_size) |
8400d9b2 JA |
379 | goto sync_done; |
380 | ||
11786802 JA |
381 | requeue_io_u(td, &io_u); |
382 | } else { | |
8400d9b2 | 383 | sync_done: |
11786802 JA |
384 | ret = io_u_sync_complete(td, io_u); |
385 | if (ret < 0) | |
386 | break; | |
36167d82 | 387 | } |
36167d82 JA |
388 | continue; |
389 | case FIO_Q_QUEUED: | |
390 | break; | |
755200a3 JA |
391 | case FIO_Q_BUSY: |
392 | requeue_io_u(td, &io_u); | |
5451792e JA |
393 | ret2 = td_io_commit(td); |
394 | if (ret2 < 0) | |
395 | ret = ret2; | |
755200a3 | 396 | break; |
36167d82 JA |
397 | default: |
398 | assert(ret < 0); | |
e1161c32 | 399 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
400 | break; |
401 | } | |
402 | ||
99784632 | 403 | if (ret < 0 || td->error) |
3af6ef39 JA |
404 | break; |
405 | ||
ebac4655 | 406 | /* |
3af6ef39 JA |
407 | * if we can queue more, do so. but check if there are |
408 | * completed io_u's first. | |
ebac4655 | 409 | */ |
97601024 | 410 | min_events = 0; |
e916b390 | 411 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
3af6ef39 | 412 | min_events = 1; |
3af6ef39 | 413 | |
2dc1bbeb JA |
414 | if (td->cur_depth > td->o.iodepth_low) |
415 | min_events = td->cur_depth - td->o.iodepth_low; | |
e916b390 JA |
416 | } |
417 | ||
3af6ef39 JA |
418 | /* |
419 | * Reap required number of io units, if any, and do the | |
420 | * verification on them through the callback handler | |
421 | */ | |
d7762cf8 | 422 | if (io_u_queued_complete(td, min_events) < 0) |
ebac4655 | 423 | break; |
36167d82 | 424 | } |
ebac4655 | 425 | |
c01c0395 JA |
426 | if (!td->error) { |
427 | min_events = td->cur_depth; | |
428 | ||
429 | if (min_events) | |
430 | ret = io_u_queued_complete(td, min_events); | |
431 | } else | |
ebac4655 JA |
432 | cleanup_pending_aio(td); |
433 | ||
434 | td_set_runstate(td, TD_RUNNING); | |
435 | } | |
436 | ||
32cd46a0 | 437 | /* |
906c8d75 | 438 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
439 | * and reaps them, checking for rate and errors along the way. |
440 | */ | |
ebac4655 JA |
441 | static void do_io(struct thread_data *td) |
442 | { | |
02bcaa8c | 443 | struct timeval s; |
ebac4655 | 444 | unsigned long usec; |
af52b345 JA |
445 | unsigned int i; |
446 | int ret = 0; | |
ebac4655 | 447 | |
5853e5a8 JA |
448 | td_set_runstate(td, TD_RUNNING); |
449 | ||
7bb48f84 | 450 | while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) { |
97601024 JA |
451 | struct timeval comp_time; |
452 | long bytes_done = 0; | |
84585003 | 453 | int min_evts = 0; |
ebac4655 | 454 | struct io_u *io_u; |
5451792e | 455 | int ret2; |
ebac4655 JA |
456 | |
457 | if (td->terminate) | |
458 | break; | |
459 | ||
3d7c391d | 460 | io_u = get_io_u(td); |
ebac4655 JA |
461 | if (!io_u) |
462 | break; | |
463 | ||
464 | memcpy(&s, &io_u->start_time, sizeof(s)); | |
97601024 JA |
465 | |
466 | if (runtime_exceeded(td, &s)) { | |
467 | put_io_u(td, io_u); | |
90a87d4b | 468 | td->terminate = 1; |
97601024 JA |
469 | break; |
470 | } | |
36167d82 | 471 | |
b67740d3 JA |
472 | /* |
473 | * Add verification end_io handler, if asked to verify | |
474 | * a previously written file. | |
475 | */ | |
cc3fc855 | 476 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ) { |
b67740d3 | 477 | io_u->end_io = verify_io_u; |
d8fab1b6 JA |
478 | td_set_runstate(td, TD_VERIFYING); |
479 | } else | |
480 | td_set_runstate(td, TD_RUNNING); | |
b67740d3 | 481 | |
11786802 | 482 | ret = td_io_queue(td, io_u); |
36167d82 JA |
483 | switch (ret) { |
484 | case FIO_Q_COMPLETED: | |
5451792e JA |
485 | if (io_u->error) |
486 | ret = -io_u->error; | |
9e9d164e | 487 | else if (io_u->resid) { |
36167d82 | 488 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 489 | struct fio_file *f = io_u->file; |
36167d82 | 490 | |
9e9d164e JA |
491 | /* |
492 | * zero read, fail | |
493 | */ | |
494 | if (!bytes) { | |
495 | td_verror(td, ENODATA, "full resid"); | |
496 | put_io_u(td, io_u); | |
497 | break; | |
498 | } | |
499 | ||
cec6b55d | 500 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 501 | io_u->xfer_buf += bytes; |
5a7c5680 JA |
502 | io_u->offset += bytes; |
503 | ||
30061b97 JA |
504 | td->ts.short_io_u[io_u->ddir]++; |
505 | ||
d460eb31 | 506 | if (io_u->offset == f->real_file_size) |
5a7c5680 JA |
507 | goto sync_done; |
508 | ||
11786802 JA |
509 | requeue_io_u(td, &io_u); |
510 | } else { | |
5a7c5680 | 511 | sync_done: |
11786802 JA |
512 | fio_gettime(&comp_time, NULL); |
513 | bytes_done = io_u_sync_complete(td, io_u); | |
514 | if (bytes_done < 0) | |
515 | ret = bytes_done; | |
cec6b55d | 516 | } |
36167d82 JA |
517 | break; |
518 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
519 | /* |
520 | * if the engine doesn't have a commit hook, | |
521 | * the io_u is really queued. if it does have such | |
522 | * a hook, it has to call io_u_queued() itself. | |
523 | */ | |
524 | if (td->io_ops->commit == NULL) | |
525 | io_u_queued(td, io_u); | |
36167d82 | 526 | break; |
755200a3 JA |
527 | case FIO_Q_BUSY: |
528 | requeue_io_u(td, &io_u); | |
5451792e JA |
529 | ret2 = td_io_commit(td); |
530 | if (ret2 < 0) | |
531 | ret = ret2; | |
755200a3 | 532 | break; |
36167d82 JA |
533 | default: |
534 | assert(ret < 0); | |
535 | put_io_u(td, io_u); | |
536 | break; | |
ebac4655 JA |
537 | } |
538 | ||
99784632 | 539 | if (ret < 0 || td->error) |
36167d82 JA |
540 | break; |
541 | ||
97601024 JA |
542 | /* |
543 | * See if we need to complete some commands | |
544 | */ | |
755200a3 | 545 | if (ret == FIO_Q_QUEUED || ret == FIO_Q_BUSY) { |
97601024 | 546 | min_evts = 0; |
e916b390 | 547 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
36167d82 | 548 | min_evts = 1; |
ebac4655 | 549 | |
2dc1bbeb | 550 | if (td->cur_depth > td->o.iodepth_low) |
5ec10eaa JA |
551 | min_evts = td->cur_depth |
552 | - td->o.iodepth_low; | |
e916b390 JA |
553 | } |
554 | ||
97601024 | 555 | fio_gettime(&comp_time, NULL); |
d7762cf8 | 556 | bytes_done = io_u_queued_complete(td, min_evts); |
97601024 | 557 | if (bytes_done < 0) |
36167d82 | 558 | break; |
ebac4655 JA |
559 | } |
560 | ||
97601024 JA |
561 | if (!bytes_done) |
562 | continue; | |
563 | ||
ebac4655 JA |
564 | /* |
565 | * the rate is batched for now, it should work for batches | |
566 | * of completions except the very first one which may look | |
567 | * a little bursty | |
568 | */ | |
97601024 | 569 | usec = utime_since(&s, &comp_time); |
ebac4655 | 570 | |
413dd459 | 571 | rate_throttle(td, usec, bytes_done); |
ebac4655 | 572 | |
97601024 | 573 | if (check_min_rate(td, &comp_time)) { |
98aa62d8 | 574 | if (exitall_on_terminate) |
390c40e2 | 575 | terminate_threads(td->groupid); |
e1161c32 | 576 | td_verror(td, ENODATA, "check_min_rate"); |
ebac4655 JA |
577 | break; |
578 | } | |
579 | ||
2dc1bbeb | 580 | if (td->o.thinktime) { |
9c1f7434 JA |
581 | unsigned long long b; |
582 | ||
583 | b = td->io_blocks[0] + td->io_blocks[1]; | |
2dc1bbeb | 584 | if (!(b % td->o.thinktime_blocks)) { |
48097d5c JA |
585 | int left; |
586 | ||
2dc1bbeb JA |
587 | if (td->o.thinktime_spin) |
588 | __usec_sleep(td->o.thinktime_spin); | |
48097d5c | 589 | |
2dc1bbeb | 590 | left = td->o.thinktime - td->o.thinktime_spin; |
48097d5c JA |
591 | if (left) |
592 | usec_sleep(td, left); | |
593 | } | |
9c1f7434 | 594 | } |
ebac4655 JA |
595 | } |
596 | ||
aa31f1f1 SL |
597 | if (td->o.fill_device && td->error == ENOSPC) { |
598 | td->error = 0; | |
599 | td->terminate = 1; | |
600 | } | |
4d2413c6 | 601 | if (!td->error) { |
3d7c391d JA |
602 | struct fio_file *f; |
603 | ||
c01c0395 JA |
604 | i = td->cur_depth; |
605 | if (i) | |
606 | ret = io_u_queued_complete(td, i); | |
ebac4655 | 607 | |
2dc1bbeb | 608 | if (should_fsync(td) && td->o.end_fsync) { |
84585003 | 609 | td_set_runstate(td, TD_FSYNCING); |
3d7b485f JA |
610 | |
611 | for_each_file(td, f, i) { | |
612 | if (!(f->flags & FIO_FILE_OPEN)) | |
613 | continue; | |
858a3d47 | 614 | fio_io_sync(td, f); |
3d7b485f | 615 | } |
84585003 | 616 | } |
c01c0395 JA |
617 | } else |
618 | cleanup_pending_aio(td); | |
2ba1c290 JA |
619 | |
620 | /* | |
621 | * stop job if we failed doing any IO | |
622 | */ | |
623 | if ((td->this_io_bytes[0] + td->this_io_bytes[1]) == 0) | |
624 | td->done = 1; | |
ebac4655 JA |
625 | } |
626 | ||
ebac4655 JA |
627 | static void cleanup_io_u(struct thread_data *td) |
628 | { | |
629 | struct list_head *entry, *n; | |
630 | struct io_u *io_u; | |
631 | ||
632 | list_for_each_safe(entry, n, &td->io_u_freelist) { | |
633 | io_u = list_entry(entry, struct io_u, list); | |
634 | ||
635 | list_del(&io_u->list); | |
636 | free(io_u); | |
637 | } | |
638 | ||
2f9ade3c | 639 | free_io_mem(td); |
ebac4655 JA |
640 | } |
641 | ||
6b9cea23 JA |
642 | /* |
643 | * "randomly" fill the buffer contents | |
644 | */ | |
e9459e5a | 645 | static void fill_io_buf(struct thread_data *td, struct io_u *io_u, int max_bs) |
6b9cea23 | 646 | { |
210f43b3 | 647 | long *ptr = io_u->buf; |
6b9cea23 | 648 | |
e9459e5a JA |
649 | if (!td->o.zero_buffers) { |
650 | while ((void *) ptr - io_u->buf < max_bs) { | |
210f43b3 | 651 | *ptr = rand() * GOLDEN_RATIO_PRIME; |
e9459e5a JA |
652 | ptr++; |
653 | } | |
654 | } else | |
655 | memset(ptr, 0, max_bs); | |
6b9cea23 JA |
656 | } |
657 | ||
ebac4655 JA |
658 | static int init_io_u(struct thread_data *td) |
659 | { | |
660 | struct io_u *io_u; | |
a00735e6 | 661 | unsigned int max_bs; |
ebac4655 JA |
662 | int i, max_units; |
663 | char *p; | |
664 | ||
1e3c09af | 665 | max_units = td->o.iodepth; |
2dc1bbeb | 666 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
5ec10eaa JA |
667 | td->orig_buffer_size = (unsigned long long) max_bs |
668 | * (unsigned long long) max_units; | |
669 | ||
670 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { | |
671 | unsigned long bs; | |
74b025b0 | 672 | |
5ec10eaa JA |
673 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; |
674 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); | |
675 | } | |
ebac4655 | 676 | |
c3990645 JA |
677 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { |
678 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
679 | return 1; | |
680 | } | |
681 | ||
2f9ade3c JA |
682 | if (allocate_io_mem(td)) |
683 | return 1; | |
ebac4655 | 684 | |
b3f378e9 JA |
685 | if (td->o.odirect) |
686 | p = ALIGN(td->orig_buffer); | |
687 | else | |
688 | p = td->orig_buffer; | |
689 | ||
ebac4655 | 690 | for (i = 0; i < max_units; i++) { |
db1cd90b JA |
691 | if (td->terminate) |
692 | return 1; | |
ebac4655 JA |
693 | io_u = malloc(sizeof(*io_u)); |
694 | memset(io_u, 0, sizeof(*io_u)); | |
695 | INIT_LIST_HEAD(&io_u->list); | |
696 | ||
b4c5e1ac JA |
697 | if (!(td->io_ops->flags & FIO_NOIO)) { |
698 | io_u->buf = p + max_bs * i; | |
e9459e5a | 699 | |
b4c5e1ac JA |
700 | if (td_write(td)) |
701 | fill_io_buf(td, io_u, max_bs); | |
702 | } | |
6b9cea23 | 703 | |
b1ff3403 | 704 | io_u->index = i; |
0c6e7517 | 705 | io_u->flags = IO_U_F_FREE; |
ebac4655 JA |
706 | list_add(&io_u->list, &td->io_u_freelist); |
707 | } | |
708 | ||
433afcb4 JA |
709 | io_u_init_timeout(); |
710 | ||
ebac4655 JA |
711 | return 0; |
712 | } | |
713 | ||
da86774e JA |
714 | static int switch_ioscheduler(struct thread_data *td) |
715 | { | |
716 | char tmp[256], tmp2[128]; | |
717 | FILE *f; | |
718 | int ret; | |
719 | ||
ba0fbe10 | 720 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
721 | return 0; |
722 | ||
da86774e JA |
723 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
724 | ||
725 | f = fopen(tmp, "r+"); | |
726 | if (!f) { | |
cbf5c1d7 | 727 | if (errno == ENOENT) { |
5ec10eaa JA |
728 | log_err("fio: os or kernel doesn't support IO scheduler" |
729 | " switching\n"); | |
cbf5c1d7 JA |
730 | return 0; |
731 | } | |
732 | td_verror(td, errno, "fopen iosched"); | |
da86774e JA |
733 | return 1; |
734 | } | |
735 | ||
736 | /* | |
737 | * Set io scheduler. | |
738 | */ | |
2dc1bbeb | 739 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); |
da86774e | 740 | if (ferror(f) || ret != 1) { |
e1161c32 | 741 | td_verror(td, errno, "fwrite"); |
da86774e JA |
742 | fclose(f); |
743 | return 1; | |
744 | } | |
745 | ||
746 | rewind(f); | |
747 | ||
748 | /* | |
749 | * Read back and check that the selected scheduler is now the default. | |
750 | */ | |
751 | ret = fread(tmp, 1, sizeof(tmp), f); | |
752 | if (ferror(f) || ret < 0) { | |
e1161c32 | 753 | td_verror(td, errno, "fread"); |
da86774e JA |
754 | fclose(f); |
755 | return 1; | |
756 | } | |
757 | ||
2dc1bbeb | 758 | sprintf(tmp2, "[%s]", td->o.ioscheduler); |
da86774e | 759 | if (!strstr(tmp, tmp2)) { |
2dc1bbeb | 760 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); |
e1161c32 | 761 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
762 | fclose(f); |
763 | return 1; | |
764 | } | |
765 | ||
766 | fclose(f); | |
767 | return 0; | |
768 | } | |
769 | ||
492158cf JA |
770 | static int keep_running(struct thread_data *td) |
771 | { | |
772 | unsigned long long io_done; | |
773 | ||
20e354ef JA |
774 | if (td->done) |
775 | return 0; | |
492158cf JA |
776 | if (td->o.time_based) |
777 | return 1; | |
778 | if (td->o.loops) { | |
779 | td->o.loops--; | |
780 | return 1; | |
781 | } | |
782 | ||
5ec10eaa JA |
783 | io_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE] |
784 | + td->io_skip_bytes; | |
492158cf JA |
785 | if (io_done < td->o.size) |
786 | return 1; | |
787 | ||
788 | return 0; | |
789 | } | |
790 | ||
a978ba68 | 791 | static int clear_io_state(struct thread_data *td) |
ebac4655 | 792 | { |
53cdc686 | 793 | struct fio_file *f; |
af52b345 JA |
794 | unsigned int i; |
795 | int ret; | |
ebac4655 | 796 | |
756867bd | 797 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 798 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 799 | td->zone_bytes = 0; |
d7d3b49b | 800 | td->rate_bytes = 0; |
4e991c23 | 801 | td->rate_blocks = 0; |
38d77cae | 802 | td->rw_end_set[0] = td->rw_end_set[1] = 0; |
ebac4655 | 803 | |
c1324df1 JA |
804 | td->last_was_sync = 0; |
805 | ||
2ba1c290 JA |
806 | /* |
807 | * reset file done count if we are to start over | |
808 | */ | |
809 | if (td->o.time_based || td->o.loops) | |
48f5abd3 | 810 | td->nr_done_files = 0; |
281f9b63 | 811 | |
24ffd2c2 | 812 | close_files(td); |
53cdc686 | 813 | |
a978ba68 JA |
814 | ret = 0; |
815 | for_each_file(td, f, i) { | |
281f9b63 | 816 | f->flags &= ~FIO_FILE_DONE; |
a978ba68 JA |
817 | ret = td_io_open_file(td, f); |
818 | if (ret) | |
819 | break; | |
53cdc686 | 820 | } |
a978ba68 JA |
821 | |
822 | return ret; | |
ebac4655 JA |
823 | } |
824 | ||
906c8d75 JA |
825 | /* |
826 | * Entry point for the thread based jobs. The process based jobs end up | |
827 | * here as well, after a little setup. | |
828 | */ | |
ebac4655 JA |
829 | static void *thread_main(void *data) |
830 | { | |
10927316 | 831 | unsigned long long runtime[2], elapsed; |
ebac4655 | 832 | struct thread_data *td = data; |
a978ba68 | 833 | int clear_state; |
ebac4655 | 834 | |
2dc1bbeb | 835 | if (!td->o.use_thread) |
ebac4655 JA |
836 | setsid(); |
837 | ||
838 | td->pid = getpid(); | |
839 | ||
ee56ad50 JA |
840 | dprint(FD_PROCESS, "jobs pid=%d started\n", td->pid); |
841 | ||
aea47d44 JA |
842 | INIT_LIST_HEAD(&td->io_u_freelist); |
843 | INIT_LIST_HEAD(&td->io_u_busylist); | |
755200a3 | 844 | INIT_LIST_HEAD(&td->io_u_requeues); |
aea47d44 | 845 | INIT_LIST_HEAD(&td->io_log_list); |
8de8f047 | 846 | INIT_LIST_HEAD(&td->io_hist_list); |
bb5d7d0b | 847 | td->io_hist_tree = RB_ROOT; |
aea47d44 | 848 | |
db1cd90b | 849 | td_set_runstate(td, TD_INITIALIZED); |
cdd18ad8 JA |
850 | fio_mutex_up(startup_mutex); |
851 | fio_mutex_down(td->mutex); | |
db1cd90b JA |
852 | |
853 | /* | |
cdd18ad8 | 854 | * the ->mutex mutex is now no longer used, close it to avoid |
db1cd90b JA |
855 | * eating a file descriptor |
856 | */ | |
cdd18ad8 | 857 | fio_mutex_remove(td->mutex); |
db1cd90b | 858 | |
d84f8d49 JA |
859 | /* |
860 | * May alter parameters that init_io_u() will use, so we need to | |
861 | * do this first. | |
862 | */ | |
863 | if (init_iolog(td)) | |
864 | goto err; | |
865 | ||
ebac4655 | 866 | if (init_io_u(td)) |
db1cd90b | 867 | goto err; |
ebac4655 | 868 | |
375b2695 | 869 | if (td->o.cpumask_set && fio_setaffinity(td) == -1) { |
e1161c32 | 870 | td_verror(td, errno, "cpu_set_affinity"); |
db1cd90b | 871 | goto err; |
ebac4655 JA |
872 | } |
873 | ||
ac684785 | 874 | if (td->ioprio_set) { |
ebac4655 | 875 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
e1161c32 | 876 | td_verror(td, errno, "ioprio_set"); |
db1cd90b | 877 | goto err; |
ebac4655 JA |
878 | } |
879 | } | |
880 | ||
2dc1bbeb | 881 | if (nice(td->o.nice) == -1) { |
e1161c32 | 882 | td_verror(td, errno, "nice"); |
db1cd90b | 883 | goto err; |
b6f4d880 JA |
884 | } |
885 | ||
2dc1bbeb | 886 | if (td->o.ioscheduler && switch_ioscheduler(td)) |
db1cd90b | 887 | goto err; |
37f56873 | 888 | |
2dc1bbeb | 889 | if (!td->o.create_serialize && setup_files(td)) |
ebac4655 JA |
890 | goto err; |
891 | ||
7d6c5283 JA |
892 | if (td_io_init(td)) |
893 | goto err; | |
894 | ||
b5af8293 JA |
895 | if (open_files(td)) |
896 | goto err; | |
897 | ||
68727076 JA |
898 | if (init_random_map(td)) |
899 | goto err; | |
900 | ||
2dc1bbeb JA |
901 | if (td->o.exec_prerun) { |
902 | if (system(td->o.exec_prerun) < 0) | |
69cfd7e0 JA |
903 | goto err; |
904 | } | |
4e0ba8af | 905 | |
69008999 | 906 | fio_gettime(&td->epoch, NULL); |
433afcb4 | 907 | memcpy(&td->timeout_end, &td->epoch, sizeof(td->epoch)); |
756867bd | 908 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 JA |
909 | |
910 | runtime[0] = runtime[1] = 0; | |
a978ba68 | 911 | clear_state = 0; |
492158cf | 912 | while (keep_running(td)) { |
02bcaa8c | 913 | fio_gettime(&td->start, NULL); |
756867bd | 914 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
ebac4655 | 915 | |
2dc1bbeb | 916 | if (td->o.ratemin) |
5ec10eaa JA |
917 | memcpy(&td->lastrate, &td->ts.stat_sample_time, |
918 | sizeof(td->lastrate)); | |
ebac4655 | 919 | |
a978ba68 JA |
920 | if (clear_state && clear_io_state(td)) |
921 | break; | |
922 | ||
ebac4655 JA |
923 | prune_io_piece_log(td); |
924 | ||
ba0fbe10 | 925 | do_io(td); |
ebac4655 | 926 | |
a978ba68 JA |
927 | clear_state = 1; |
928 | ||
38d77cae JA |
929 | if (td_read(td) && td->io_bytes[DDIR_READ]) { |
930 | if (td->rw_end_set[DDIR_READ]) | |
5ec10eaa JA |
931 | elapsed = utime_since(&td->start, |
932 | &td->rw_end[DDIR_READ]); | |
38d77cae JA |
933 | else |
934 | elapsed = utime_since_now(&td->start); | |
935 | ||
936 | runtime[DDIR_READ] += elapsed; | |
937 | } | |
938 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { | |
939 | if (td->rw_end_set[DDIR_WRITE]) | |
5ec10eaa JA |
940 | elapsed = utime_since(&td->start, |
941 | &td->rw_end[DDIR_WRITE]); | |
38d77cae JA |
942 | else |
943 | elapsed = utime_since_now(&td->start); | |
944 | ||
945 | runtime[DDIR_WRITE] += elapsed; | |
946 | } | |
5ec10eaa | 947 | |
ebac4655 JA |
948 | if (td->error || td->terminate) |
949 | break; | |
950 | ||
e84c73a8 SL |
951 | if (!td->o.do_verify || |
952 | td->o.verify == VERIFY_NONE || | |
b67740d3 | 953 | (td->io_ops->flags & FIO_UNIDIR)) |
ebac4655 JA |
954 | continue; |
955 | ||
a978ba68 JA |
956 | if (clear_io_state(td)) |
957 | break; | |
958 | ||
02bcaa8c | 959 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
960 | |
961 | do_verify(td); | |
962 | ||
69008999 | 963 | runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
964 | |
965 | if (td->error || td->terminate) | |
966 | break; | |
967 | } | |
968 | ||
36dff966 | 969 | update_rusage_stat(td); |
47f0cc48 YHJT |
970 | td->ts.runtime[0] = (runtime[0] + 999) / 1000; |
971 | td->ts.runtime[1] = (runtime[1] + 999) / 1000; | |
756867bd JA |
972 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
973 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
974 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
975 | ||
976 | if (td->ts.bw_log) | |
977 | finish_log(td, td->ts.bw_log, "bw"); | |
978 | if (td->ts.slat_log) | |
979 | finish_log(td, td->ts.slat_log, "slat"); | |
980 | if (td->ts.clat_log) | |
981 | finish_log(td, td->ts.clat_log, "clat"); | |
2dc1bbeb JA |
982 | if (td->o.exec_postrun) { |
983 | if (system(td->o.exec_postrun) < 0) | |
984 | log_err("fio: postrun %s failed\n", td->o.exec_postrun); | |
69cfd7e0 | 985 | } |
ebac4655 JA |
986 | |
987 | if (exitall_on_terminate) | |
390c40e2 | 988 | terminate_threads(td->groupid); |
ebac4655 JA |
989 | |
990 | err: | |
5bf13a5a | 991 | if (td->error) |
5ec10eaa JA |
992 | printf("fio: pid=%d, err=%d/%s\n", td->pid, td->error, |
993 | td->verror); | |
24ffd2c2 | 994 | close_and_free_files(td); |
2866c82d | 995 | close_ioengine(td); |
ebac4655 | 996 | cleanup_io_u(td); |
f29b25a3 JA |
997 | |
998 | /* | |
999 | * do this very late, it will log file closing as well | |
1000 | */ | |
1001 | if (td->o.write_iolog_file) | |
1002 | write_iolog_close(td); | |
1003 | ||
d23bb327 | 1004 | options_mem_free(td); |
ebac4655 | 1005 | td_set_runstate(td, TD_EXITED); |
43d76807 | 1006 | return (void *) (unsigned long) td->error; |
ebac4655 JA |
1007 | } |
1008 | ||
906c8d75 JA |
1009 | /* |
1010 | * We cannot pass the td data into a forked process, so attach the td and | |
1011 | * pass it to the thread worker. | |
1012 | */ | |
a6418147 | 1013 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
1014 | { |
1015 | struct thread_data *td; | |
a6418147 | 1016 | void *data, *ret; |
ebac4655 JA |
1017 | |
1018 | data = shmat(shmid, NULL, 0); | |
1019 | if (data == (void *) -1) { | |
a6418147 JA |
1020 | int __err = errno; |
1021 | ||
ebac4655 | 1022 | perror("shmat"); |
a6418147 | 1023 | return __err; |
ebac4655 JA |
1024 | } |
1025 | ||
1026 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 1027 | ret = thread_main(td); |
ebac4655 | 1028 | shmdt(data); |
43d76807 | 1029 | return (int) (unsigned long) ret; |
ebac4655 JA |
1030 | } |
1031 | ||
906c8d75 JA |
1032 | /* |
1033 | * Run over the job map and reap the threads that have exited, if any. | |
1034 | */ | |
ebac4655 JA |
1035 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
1036 | { | |
34572e28 | 1037 | struct thread_data *td; |
1f809d15 | 1038 | int i, cputhreads, realthreads, pending, status, ret; |
ebac4655 JA |
1039 | |
1040 | /* | |
1041 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1042 | */ | |
1f809d15 | 1043 | realthreads = pending = cputhreads = 0; |
34572e28 | 1044 | for_each_td(td, i) { |
3707f45b | 1045 | int flags = 0; |
a2f77c9f | 1046 | |
84585003 JA |
1047 | /* |
1048 | * ->io_ops is NULL for a thread that has closed its | |
1049 | * io engine | |
1050 | */ | |
ba0fbe10 | 1051 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 | 1052 | cputhreads++; |
1f809d15 JA |
1053 | else |
1054 | realthreads++; | |
b990b5c0 | 1055 | |
a1dedc1f AC |
1056 | if (!td->pid) { |
1057 | pending++; | |
1058 | continue; | |
1059 | } | |
1060 | if (td->runstate == TD_REAPED) | |
a2f77c9f | 1061 | continue; |
2dc1bbeb | 1062 | if (td->o.use_thread) { |
3707f45b JA |
1063 | if (td->runstate == TD_EXITED) { |
1064 | td_set_runstate(td, TD_REAPED); | |
1065 | goto reaped; | |
1066 | } | |
1067 | continue; | |
1068 | } | |
a2f77c9f JA |
1069 | |
1070 | flags = WNOHANG; | |
1071 | if (td->runstate == TD_EXITED) | |
1072 | flags = 0; | |
1073 | ||
1074 | /* | |
1075 | * check if someone quit or got killed in an unusual way | |
1076 | */ | |
1077 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 1078 | if (ret < 0) { |
a2f77c9f | 1079 | if (errno == ECHILD) { |
5ec10eaa JA |
1080 | log_err("fio: pid=%d disappeared %d\n", td->pid, |
1081 | td->runstate); | |
a2f77c9f JA |
1082 | td_set_runstate(td, TD_REAPED); |
1083 | goto reaped; | |
1084 | } | |
1085 | perror("waitpid"); | |
1086 | } else if (ret == td->pid) { | |
1087 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
1088 | int sig = WTERMSIG(status); |
1089 | ||
d9244941 | 1090 | if (sig != SIGQUIT) |
5ec10eaa JA |
1091 | log_err("fio: pid=%d, got signal=%d\n", |
1092 | td->pid, sig); | |
fab6aa71 JA |
1093 | td_set_runstate(td, TD_REAPED); |
1094 | goto reaped; | |
1095 | } | |
a2f77c9f JA |
1096 | if (WIFEXITED(status)) { |
1097 | if (WEXITSTATUS(status) && !td->error) | |
1098 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 1099 | |
a2f77c9f JA |
1100 | td_set_runstate(td, TD_REAPED); |
1101 | goto reaped; | |
a6418147 JA |
1102 | } |
1103 | } | |
ebac4655 | 1104 | |
a2f77c9f JA |
1105 | /* |
1106 | * thread is not dead, continue | |
1107 | */ | |
e48676ba | 1108 | pending++; |
a2f77c9f | 1109 | continue; |
fab6aa71 | 1110 | reaped: |
2dc1bbeb | 1111 | if (td->o.use_thread) { |
3707f45b JA |
1112 | long ret; |
1113 | ||
ee56ad50 JA |
1114 | dprint(FD_PROCESS, "joining tread %d\n", td->pid); |
1115 | if (pthread_join(td->thread, (void *) &ret)) { | |
1116 | dprint(FD_PROCESS, "join failed %ld\n", ret); | |
3707f45b | 1117 | perror("pthread_join"); |
ee56ad50 | 1118 | } |
3707f45b JA |
1119 | } |
1120 | ||
ebac4655 | 1121 | (*nr_running)--; |
2dc1bbeb JA |
1122 | (*m_rate) -= td->o.ratemin; |
1123 | (*t_rate) -= td->o.rate; | |
e48676ba | 1124 | pending--; |
a2f77c9f JA |
1125 | |
1126 | if (td->error) | |
1127 | exit_value++; | |
ebac4655 | 1128 | } |
b990b5c0 | 1129 | |
1f809d15 | 1130 | if (*nr_running == cputhreads && !pending && realthreads) |
390c40e2 | 1131 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
1132 | } |
1133 | ||
906c8d75 JA |
1134 | /* |
1135 | * Main function for kicking off and reaping jobs, as needed. | |
1136 | */ | |
ebac4655 JA |
1137 | static void run_threads(void) |
1138 | { | |
ebac4655 JA |
1139 | struct thread_data *td; |
1140 | unsigned long spent; | |
1141 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 1142 | |
2f9ade3c JA |
1143 | if (fio_pin_memory()) |
1144 | return; | |
ebac4655 | 1145 | |
c6ae0a5b | 1146 | if (!terse_output) { |
9cedf167 JA |
1147 | printf("Starting "); |
1148 | if (nr_thread) | |
5ec10eaa JA |
1149 | printf("%d thread%s", nr_thread, |
1150 | nr_thread > 1 ? "s" : ""); | |
9cedf167 JA |
1151 | if (nr_process) { |
1152 | if (nr_thread) | |
1153 | printf(" and "); | |
5ec10eaa JA |
1154 | printf("%d process%s", nr_process, |
1155 | nr_process > 1 ? "es" : ""); | |
9cedf167 JA |
1156 | } |
1157 | printf("\n"); | |
c6ae0a5b JA |
1158 | fflush(stdout); |
1159 | } | |
c04f7ec3 | 1160 | |
4efa970e JA |
1161 | signal(SIGINT, sig_handler); |
1162 | signal(SIGALRM, sig_handler); | |
1163 | ||
ebac4655 JA |
1164 | todo = thread_number; |
1165 | nr_running = 0; | |
1166 | nr_started = 0; | |
1167 | m_rate = t_rate = 0; | |
1168 | ||
34572e28 | 1169 | for_each_td(td, i) { |
263e529f | 1170 | print_status_init(td->thread_number - 1); |
ebac4655 | 1171 | |
2dc1bbeb | 1172 | if (!td->o.create_serialize) { |
380cf265 | 1173 | init_disk_util(td); |
ebac4655 | 1174 | continue; |
380cf265 | 1175 | } |
ebac4655 JA |
1176 | |
1177 | /* | |
1178 | * do file setup here so it happens sequentially, | |
1179 | * we don't want X number of threads getting their | |
1180 | * client data interspersed on disk | |
1181 | */ | |
53cdc686 | 1182 | if (setup_files(td)) { |
5bf13a5a JA |
1183 | exit_value++; |
1184 | if (td->error) | |
5ec10eaa JA |
1185 | log_err("fio: pid=%d, err=%d/%s\n", td->pid, |
1186 | td->error, td->verror); | |
ebac4655 JA |
1187 | td_set_runstate(td, TD_REAPED); |
1188 | todo--; | |
c69e8875 JA |
1189 | } else { |
1190 | struct fio_file *f; | |
1191 | unsigned int i; | |
1192 | ||
1193 | /* | |
1194 | * for sharing to work, each job must always open | |
1195 | * its own files. so close them, if we opened them | |
1196 | * for creation | |
1197 | */ | |
1198 | for_each_file(td, f, i) | |
1199 | td_io_close_file(td, f); | |
5ec10eaa | 1200 | } |
380cf265 JA |
1201 | |
1202 | init_disk_util(td); | |
ebac4655 JA |
1203 | } |
1204 | ||
a2f77c9f JA |
1205 | set_genesis_time(); |
1206 | ||
ebac4655 | 1207 | while (todo) { |
75154845 JA |
1208 | struct thread_data *map[MAX_JOBS]; |
1209 | struct timeval this_start; | |
1210 | int this_jobs = 0, left; | |
1211 | ||
ebac4655 JA |
1212 | /* |
1213 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1214 | */ | |
34572e28 | 1215 | for_each_td(td, i) { |
ebac4655 JA |
1216 | if (td->runstate != TD_NOT_CREATED) |
1217 | continue; | |
1218 | ||
1219 | /* | |
1220 | * never got a chance to start, killed by other | |
1221 | * thread for some reason | |
1222 | */ | |
1223 | if (td->terminate) { | |
1224 | todo--; | |
1225 | continue; | |
1226 | } | |
1227 | ||
2dc1bbeb | 1228 | if (td->o.start_delay) { |
263e529f | 1229 | spent = mtime_since_genesis(); |
ebac4655 | 1230 | |
2dc1bbeb | 1231 | if (td->o.start_delay * 1000 > spent) |
ebac4655 JA |
1232 | continue; |
1233 | } | |
1234 | ||
2dc1bbeb | 1235 | if (td->o.stonewall && (nr_started || nr_running)) |
ebac4655 JA |
1236 | break; |
1237 | ||
75154845 JA |
1238 | /* |
1239 | * Set state to created. Thread will transition | |
1240 | * to TD_INITIALIZED when it's done setting up. | |
1241 | */ | |
ebac4655 | 1242 | td_set_runstate(td, TD_CREATED); |
75154845 | 1243 | map[this_jobs++] = td; |
ebac4655 JA |
1244 | nr_started++; |
1245 | ||
2dc1bbeb | 1246 | if (td->o.use_thread) { |
ee56ad50 | 1247 | dprint(FD_PROCESS, "will pthread_create\n"); |
5ec10eaa JA |
1248 | if (pthread_create(&td->thread, NULL, |
1249 | thread_main, td)) { | |
ebac4655 JA |
1250 | perror("thread_create"); |
1251 | nr_started--; | |
c8bb6faf | 1252 | break; |
ebac4655 JA |
1253 | } |
1254 | } else { | |
ee56ad50 | 1255 | dprint(FD_PROCESS, "will fork\n"); |
07739b57 | 1256 | if (!fork()) { |
a6418147 JA |
1257 | int ret = fork_main(shm_id, i); |
1258 | ||
1259 | exit(ret); | |
ebac4655 JA |
1260 | } |
1261 | } | |
cdd18ad8 | 1262 | fio_mutex_down(startup_mutex); |
ebac4655 JA |
1263 | } |
1264 | ||
1265 | /* | |
75154845 JA |
1266 | * Wait for the started threads to transition to |
1267 | * TD_INITIALIZED. | |
ebac4655 | 1268 | */ |
02bcaa8c | 1269 | fio_gettime(&this_start, NULL); |
75154845 | 1270 | left = this_jobs; |
6ce15a32 | 1271 | while (left && !fio_abort) { |
75154845 JA |
1272 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1273 | break; | |
1274 | ||
1275 | usleep(100000); | |
1276 | ||
1277 | for (i = 0; i < this_jobs; i++) { | |
1278 | td = map[i]; | |
1279 | if (!td) | |
1280 | continue; | |
b6f4d880 | 1281 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1282 | map[i] = NULL; |
1283 | left--; | |
b6f4d880 JA |
1284 | } else if (td->runstate >= TD_EXITED) { |
1285 | map[i] = NULL; | |
1286 | left--; | |
1287 | todo--; | |
1288 | nr_running++; /* work-around... */ | |
75154845 JA |
1289 | } |
1290 | } | |
1291 | } | |
1292 | ||
1293 | if (left) { | |
3b70d7e5 | 1294 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1295 | for (i = 0; i < this_jobs; i++) { |
1296 | td = map[i]; | |
1297 | if (!td) | |
1298 | continue; | |
1299 | kill(td->pid, SIGTERM); | |
1300 | } | |
1301 | break; | |
1302 | } | |
1303 | ||
1304 | /* | |
b6f4d880 | 1305 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1306 | */ |
34572e28 | 1307 | for_each_td(td, i) { |
75154845 | 1308 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1309 | continue; |
1310 | ||
1311 | td_set_runstate(td, TD_RUNNING); | |
1312 | nr_running++; | |
1313 | nr_started--; | |
2dc1bbeb JA |
1314 | m_rate += td->o.ratemin; |
1315 | t_rate += td->o.rate; | |
75154845 | 1316 | todo--; |
cdd18ad8 | 1317 | fio_mutex_up(td->mutex); |
ebac4655 JA |
1318 | } |
1319 | ||
1320 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1321 | ||
1322 | if (todo) | |
1323 | usleep(100000); | |
1324 | } | |
1325 | ||
1326 | while (nr_running) { | |
1327 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1328 | usleep(10000); | |
1329 | } | |
1330 | ||
1331 | update_io_ticks(); | |
2f9ade3c | 1332 | fio_unpin_memory(); |
ebac4655 JA |
1333 | } |
1334 | ||
ebac4655 JA |
1335 | int main(int argc, char *argv[]) |
1336 | { | |
29d610e1 JA |
1337 | long ps; |
1338 | ||
2e5cdb11 JA |
1339 | sinit(); |
1340 | ||
dbe1125e JA |
1341 | /* |
1342 | * We need locale for number printing, if it isn't set then just | |
1343 | * go with the US format. | |
1344 | */ | |
1345 | if (!getenv("LC_NUMERIC")) | |
1346 | setlocale(LC_NUMERIC, "en_US"); | |
1347 | ||
ebac4655 JA |
1348 | if (parse_options(argc, argv)) |
1349 | return 1; | |
1350 | ||
4b472fa3 JA |
1351 | if (!thread_number) |
1352 | return 0; | |
ebac4655 | 1353 | |
29d610e1 JA |
1354 | ps = sysconf(_SC_PAGESIZE); |
1355 | if (ps < 0) { | |
1356 | log_err("Failed to get page size\n"); | |
1357 | return 1; | |
1358 | } | |
1359 | ||
cfc99db7 | 1360 | page_size = ps; |
29d610e1 JA |
1361 | page_mask = ps - 1; |
1362 | ||
bb3884d8 JA |
1363 | if (write_bw_log) { |
1364 | setup_log(&agg_io_log[DDIR_READ]); | |
1365 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1366 | } | |
1367 | ||
cdd18ad8 | 1368 | startup_mutex = fio_mutex_init(0); |
07739b57 | 1369 | |
a2f77c9f JA |
1370 | set_genesis_time(); |
1371 | ||
ebac4655 JA |
1372 | disk_util_timer_arm(); |
1373 | ||
1374 | run_threads(); | |
6ce15a32 | 1375 | |
bb3884d8 | 1376 | if (!fio_abort) { |
6ce15a32 | 1377 | show_run_stats(); |
bb3884d8 | 1378 | if (write_bw_log) { |
5ec10eaa JA |
1379 | __finish_log(agg_io_log[DDIR_READ], "agg-read_bw.log"); |
1380 | __finish_log(agg_io_log[DDIR_WRITE], | |
1381 | "agg-write_bw.log"); | |
bb3884d8 JA |
1382 | } |
1383 | } | |
ebac4655 | 1384 | |
cdd18ad8 | 1385 | fio_mutex_remove(startup_mutex); |
437c9b71 | 1386 | return exit_value; |
ebac4655 | 1387 | } |