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" |
ebac4655 | 39 | |
cfc99db7 JA |
40 | unsigned long page_mask; |
41 | unsigned long page_size; | |
29d610e1 JA |
42 | #define ALIGN(buf) \ |
43 | (char *) (((unsigned long) (buf) + page_mask) & ~page_mask) | |
ebac4655 JA |
44 | |
45 | int groupid = 0; | |
46 | int thread_number = 0; | |
9cedf167 JA |
47 | int nr_process = 0; |
48 | int nr_thread = 0; | |
ebac4655 | 49 | int shm_id = 0; |
53cdc686 | 50 | int temp_stall_ts; |
ebac4655 | 51 | |
07739b57 | 52 | static struct fio_sem *startup_sem; |
6ce15a32 | 53 | static volatile int fio_abort; |
437c9b71 | 54 | static int exit_value; |
ebac4655 | 55 | |
bb3884d8 JA |
56 | struct io_log *agg_io_log[2]; |
57 | ||
ebac4655 | 58 | #define TERMINATE_ALL (-1) |
75154845 | 59 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 | 60 | |
6ce15a32 JA |
61 | static inline void td_set_runstate(struct thread_data *td, int runstate) |
62 | { | |
bd6f78b2 JA |
63 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", td->pid, td->runstate, |
64 | runstate); | |
6ce15a32 JA |
65 | td->runstate = runstate; |
66 | } | |
67 | ||
390c40e2 | 68 | static void terminate_threads(int group_id) |
ebac4655 | 69 | { |
34572e28 | 70 | struct thread_data *td; |
ebac4655 JA |
71 | int i; |
72 | ||
34572e28 | 73 | for_each_td(td, i) { |
ebac4655 | 74 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
ee56ad50 | 75 | dprint(FD_PROCESS, "setting terminate on %d\n",td->pid); |
7a93ab19 JA |
76 | /* |
77 | * if the thread is running, just let it exit | |
78 | */ | |
79 | if (td->runstate < TD_RUNNING) | |
c1302d44 | 80 | kill(td->pid, SIGQUIT); |
ebac4655 | 81 | td->terminate = 1; |
2dc1bbeb | 82 | td->o.start_delay = 0; |
ebac4655 JA |
83 | } |
84 | } | |
85 | } | |
86 | ||
87 | static void sig_handler(int sig) | |
88 | { | |
89 | switch (sig) { | |
90 | case SIGALRM: | |
91 | update_io_ticks(); | |
92 | disk_util_timer_arm(); | |
93 | print_thread_status(); | |
94 | break; | |
95 | default: | |
6ce15a32 | 96 | printf("\nfio: terminating on signal %d\n", sig); |
ebac4655 | 97 | fflush(stdout); |
390c40e2 | 98 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
99 | break; |
100 | } | |
101 | } | |
102 | ||
906c8d75 JA |
103 | /* |
104 | * Check if we are above the minimum rate given. | |
105 | */ | |
ebac4655 JA |
106 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
107 | { | |
0904200b | 108 | unsigned long long bytes = 0; |
4e991c23 | 109 | unsigned long iops = 0; |
ebac4655 JA |
110 | unsigned long spent; |
111 | unsigned long rate; | |
ebac4655 | 112 | |
780bf1a1 JA |
113 | /* |
114 | * No minimum rate set, always ok | |
115 | */ | |
2dc1bbeb | 116 | if (!td->o.ratemin && !td->o.rate_iops_min) |
780bf1a1 JA |
117 | return 0; |
118 | ||
ebac4655 JA |
119 | /* |
120 | * allow a 2 second settle period in the beginning | |
121 | */ | |
122 | if (mtime_since(&td->start, now) < 2000) | |
123 | return 0; | |
124 | ||
4e991c23 JA |
125 | if (td_read(td)) { |
126 | iops += td->io_blocks[DDIR_READ]; | |
0904200b | 127 | bytes += td->this_io_bytes[DDIR_READ]; |
4e991c23 JA |
128 | } |
129 | if (td_write(td)) { | |
130 | iops += td->io_blocks[DDIR_WRITE]; | |
0904200b | 131 | bytes += td->this_io_bytes[DDIR_WRITE]; |
4e991c23 | 132 | } |
0904200b | 133 | |
ebac4655 JA |
134 | /* |
135 | * if rate blocks is set, sample is running | |
136 | */ | |
4e991c23 | 137 | if (td->rate_bytes || td->rate_blocks) { |
ebac4655 | 138 | spent = mtime_since(&td->lastrate, now); |
2dc1bbeb | 139 | if (spent < td->o.ratecycle) |
ebac4655 JA |
140 | return 0; |
141 | ||
2dc1bbeb | 142 | if (td->o.rate) { |
4e991c23 JA |
143 | /* |
144 | * check bandwidth specified rate | |
145 | */ | |
146 | if (bytes < td->rate_bytes) { | |
2dc1bbeb | 147 | log_err("%s: min rate %u not met\n", td->o.name, td->o.ratemin); |
4e991c23 JA |
148 | return 1; |
149 | } else { | |
150 | rate = (bytes - td->rate_bytes) / spent; | |
2dc1bbeb JA |
151 | if (rate < td->o.ratemin || bytes < td->rate_bytes) { |
152 | log_err("%s: min rate %u not met, got %luKiB/sec\n", td->o.name, td->o.ratemin, rate); | |
4e991c23 JA |
153 | return 1; |
154 | } | |
155 | } | |
413dd459 | 156 | } else { |
4e991c23 JA |
157 | /* |
158 | * checks iops specified rate | |
159 | */ | |
2dc1bbeb JA |
160 | if (iops < td->o.rate_iops) { |
161 | log_err("%s: min iops rate %u not met\n", td->o.name, td->o.rate_iops); | |
413dd459 | 162 | return 1; |
4e991c23 JA |
163 | } else { |
164 | rate = (iops - td->rate_blocks) / spent; | |
2dc1bbeb JA |
165 | if (rate < td->o.rate_iops_min || iops < td->rate_blocks) { |
166 | log_err("%s: min iops rate %u not met, got %lu\n", td->o.name, td->o.rate_iops_min, rate); | |
4e991c23 | 167 | } |
413dd459 | 168 | } |
ebac4655 JA |
169 | } |
170 | } | |
171 | ||
0904200b | 172 | td->rate_bytes = bytes; |
4e991c23 | 173 | td->rate_blocks = iops; |
ebac4655 JA |
174 | memcpy(&td->lastrate, now, sizeof(*now)); |
175 | return 0; | |
176 | } | |
177 | ||
178 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
179 | { | |
2dc1bbeb | 180 | if (!td->o.timeout) |
ebac4655 | 181 | return 0; |
2dc1bbeb | 182 | if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) |
ebac4655 JA |
183 | return 1; |
184 | ||
185 | return 0; | |
186 | } | |
187 | ||
906c8d75 JA |
188 | /* |
189 | * When job exits, we can cancel the in-flight IO if we are using async | |
190 | * io. Attempt to do so. | |
191 | */ | |
ebac4655 JA |
192 | static void cleanup_pending_aio(struct thread_data *td) |
193 | { | |
ebac4655 | 194 | struct list_head *entry, *n; |
ebac4655 JA |
195 | struct io_u *io_u; |
196 | int r; | |
197 | ||
198 | /* | |
199 | * get immediately available events, if any | |
200 | */ | |
d7762cf8 | 201 | r = io_u_queued_complete(td, 0); |
b2fdda43 JA |
202 | if (r < 0) |
203 | return; | |
ebac4655 JA |
204 | |
205 | /* | |
206 | * now cancel remaining active events | |
207 | */ | |
2866c82d | 208 | if (td->io_ops->cancel) { |
ebac4655 JA |
209 | list_for_each_safe(entry, n, &td->io_u_busylist) { |
210 | io_u = list_entry(entry, struct io_u, list); | |
211 | ||
0c6e7517 JA |
212 | /* |
213 | * if the io_u isn't in flight, then that generally | |
214 | * means someone leaked an io_u. complain but fix | |
215 | * it up, so we don't stall here. | |
216 | */ | |
217 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
218 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 219 | put_io_u(td, io_u); |
0c6e7517 JA |
220 | } else { |
221 | r = td->io_ops->cancel(td, io_u); | |
222 | if (!r) | |
223 | put_io_u(td, io_u); | |
224 | } | |
ebac4655 JA |
225 | } |
226 | } | |
227 | ||
97601024 | 228 | if (td->cur_depth) |
d7762cf8 | 229 | r = io_u_queued_complete(td, td->cur_depth); |
ebac4655 JA |
230 | } |
231 | ||
858a3d47 JA |
232 | /* |
233 | * Helper to handle the final sync of a file. Works just like the normal | |
234 | * io path, just does everything sync. | |
235 | */ | |
236 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
237 | { | |
238 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
239 | int ret; |
240 | ||
241 | if (!io_u) | |
242 | return 1; | |
243 | ||
244 | io_u->ddir = DDIR_SYNC; | |
245 | io_u->file = f; | |
246 | ||
247 | if (td_io_prep(td, io_u)) { | |
248 | put_io_u(td, io_u); | |
249 | return 1; | |
250 | } | |
251 | ||
755200a3 | 252 | requeue: |
858a3d47 | 253 | ret = td_io_queue(td, io_u); |
36167d82 | 254 | if (ret < 0) { |
e1161c32 | 255 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 256 | put_io_u(td, io_u); |
858a3d47 | 257 | return 1; |
36167d82 | 258 | } else if (ret == FIO_Q_QUEUED) { |
d7762cf8 | 259 | if (io_u_queued_complete(td, 1) < 0) |
36167d82 | 260 | return 1; |
36167d82 JA |
261 | } else if (ret == FIO_Q_COMPLETED) { |
262 | if (io_u->error) { | |
e1161c32 | 263 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
264 | return 1; |
265 | } | |
858a3d47 | 266 | |
d7762cf8 | 267 | if (io_u_sync_complete(td, io_u) < 0) |
b2fdda43 | 268 | return 1; |
755200a3 JA |
269 | } else if (ret == FIO_Q_BUSY) { |
270 | if (td_io_commit(td)) | |
271 | return 1; | |
272 | goto requeue; | |
858a3d47 JA |
273 | } |
274 | ||
275 | return 0; | |
276 | } | |
277 | ||
906c8d75 | 278 | /* |
34403fb1 | 279 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
280 | * reads the blocks back in, and checks the crc/md5 of the data. |
281 | */ | |
1e97cce9 | 282 | static void do_verify(struct thread_data *td) |
ebac4655 | 283 | { |
53cdc686 | 284 | struct fio_file *f; |
36167d82 | 285 | struct io_u *io_u; |
af52b345 JA |
286 | int ret, min_events; |
287 | unsigned int i; | |
e5b401d4 JA |
288 | |
289 | /* | |
290 | * sync io first and invalidate cache, to make sure we really | |
291 | * read from disk. | |
292 | */ | |
293 | for_each_file(td, f, i) { | |
3d7b485f JA |
294 | if (!(f->flags & FIO_FILE_OPEN)) |
295 | continue; | |
b2fdda43 JA |
296 | if (fio_io_sync(td, f)) |
297 | break; | |
298 | if (file_invalidate_cache(td, f)) | |
299 | break; | |
e5b401d4 | 300 | } |
ebac4655 | 301 | |
b2fdda43 JA |
302 | if (td->error) |
303 | return; | |
304 | ||
ebac4655 JA |
305 | td_set_runstate(td, TD_VERIFYING); |
306 | ||
36167d82 JA |
307 | io_u = NULL; |
308 | while (!td->terminate) { | |
5451792e JA |
309 | int ret2; |
310 | ||
ebac4655 JA |
311 | io_u = __get_io_u(td); |
312 | if (!io_u) | |
313 | break; | |
314 | ||
069c2918 JA |
315 | if (runtime_exceeded(td, &io_u->start_time)) { |
316 | put_io_u(td, io_u); | |
90a87d4b | 317 | td->terminate = 1; |
02bcaa8c | 318 | break; |
069c2918 | 319 | } |
02bcaa8c | 320 | |
069c2918 JA |
321 | if (get_next_verify(td, io_u)) { |
322 | put_io_u(td, io_u); | |
ebac4655 | 323 | break; |
069c2918 | 324 | } |
ebac4655 | 325 | |
069c2918 JA |
326 | if (td_io_prep(td, io_u)) { |
327 | put_io_u(td, io_u); | |
53cdc686 | 328 | break; |
069c2918 | 329 | } |
d7762cf8 JA |
330 | |
331 | io_u->end_io = verify_io_u; | |
53cdc686 | 332 | |
11786802 | 333 | ret = td_io_queue(td, io_u); |
36167d82 JA |
334 | switch (ret) { |
335 | case FIO_Q_COMPLETED: | |
336 | if (io_u->error) | |
22819ec2 | 337 | ret = -io_u->error; |
9e9d164e | 338 | else if (io_u->resid) { |
36167d82 | 339 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 340 | struct fio_file *f = io_u->file; |
ebac4655 | 341 | |
9e9d164e JA |
342 | /* |
343 | * zero read, fail | |
344 | */ | |
345 | if (!bytes) { | |
346 | td_verror(td, ENODATA, "full resid"); | |
347 | put_io_u(td, io_u); | |
348 | break; | |
349 | } | |
8400d9b2 | 350 | |
36167d82 JA |
351 | io_u->xfer_buflen = io_u->resid; |
352 | io_u->xfer_buf += bytes; | |
8400d9b2 | 353 | io_u->offset += bytes; |
d460eb31 | 354 | f->last_completed_pos = io_u->offset; |
8400d9b2 | 355 | |
30061b97 JA |
356 | td->ts.short_io_u[io_u->ddir]++; |
357 | ||
d460eb31 | 358 | if (io_u->offset == f->real_file_size) |
8400d9b2 JA |
359 | goto sync_done; |
360 | ||
11786802 JA |
361 | requeue_io_u(td, &io_u); |
362 | } else { | |
8400d9b2 | 363 | sync_done: |
11786802 JA |
364 | ret = io_u_sync_complete(td, io_u); |
365 | if (ret < 0) | |
366 | break; | |
36167d82 | 367 | } |
36167d82 JA |
368 | continue; |
369 | case FIO_Q_QUEUED: | |
370 | break; | |
755200a3 JA |
371 | case FIO_Q_BUSY: |
372 | requeue_io_u(td, &io_u); | |
5451792e JA |
373 | ret2 = td_io_commit(td); |
374 | if (ret2 < 0) | |
375 | ret = ret2; | |
755200a3 | 376 | break; |
36167d82 JA |
377 | default: |
378 | assert(ret < 0); | |
e1161c32 | 379 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
380 | break; |
381 | } | |
382 | ||
99784632 | 383 | if (ret < 0 || td->error) |
3af6ef39 JA |
384 | break; |
385 | ||
ebac4655 | 386 | /* |
3af6ef39 JA |
387 | * if we can queue more, do so. but check if there are |
388 | * completed io_u's first. | |
ebac4655 | 389 | */ |
97601024 | 390 | min_events = 0; |
e916b390 | 391 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
3af6ef39 | 392 | min_events = 1; |
3af6ef39 | 393 | |
2dc1bbeb JA |
394 | if (td->cur_depth > td->o.iodepth_low) |
395 | min_events = td->cur_depth - td->o.iodepth_low; | |
e916b390 JA |
396 | } |
397 | ||
3af6ef39 JA |
398 | /* |
399 | * Reap required number of io units, if any, and do the | |
400 | * verification on them through the callback handler | |
401 | */ | |
d7762cf8 | 402 | if (io_u_queued_complete(td, min_events) < 0) |
ebac4655 | 403 | break; |
36167d82 | 404 | } |
ebac4655 | 405 | |
c01c0395 JA |
406 | if (!td->error) { |
407 | min_events = td->cur_depth; | |
408 | ||
409 | if (min_events) | |
410 | ret = io_u_queued_complete(td, min_events); | |
411 | } else | |
ebac4655 JA |
412 | cleanup_pending_aio(td); |
413 | ||
414 | td_set_runstate(td, TD_RUNNING); | |
415 | } | |
416 | ||
32cd46a0 | 417 | /* |
906c8d75 | 418 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
419 | * and reaps them, checking for rate and errors along the way. |
420 | */ | |
ebac4655 JA |
421 | static void do_io(struct thread_data *td) |
422 | { | |
02bcaa8c | 423 | struct timeval s; |
ebac4655 | 424 | unsigned long usec; |
af52b345 JA |
425 | unsigned int i; |
426 | int ret = 0; | |
ebac4655 | 427 | |
5853e5a8 JA |
428 | td_set_runstate(td, TD_RUNNING); |
429 | ||
7bb48f84 | 430 | while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) { |
97601024 JA |
431 | struct timeval comp_time; |
432 | long bytes_done = 0; | |
84585003 | 433 | int min_evts = 0; |
ebac4655 | 434 | struct io_u *io_u; |
5451792e | 435 | int ret2; |
ebac4655 JA |
436 | |
437 | if (td->terminate) | |
438 | break; | |
439 | ||
3d7c391d | 440 | io_u = get_io_u(td); |
ebac4655 JA |
441 | if (!io_u) |
442 | break; | |
443 | ||
444 | memcpy(&s, &io_u->start_time, sizeof(s)); | |
97601024 JA |
445 | |
446 | if (runtime_exceeded(td, &s)) { | |
447 | put_io_u(td, io_u); | |
90a87d4b | 448 | td->terminate = 1; |
97601024 JA |
449 | break; |
450 | } | |
36167d82 | 451 | |
b67740d3 JA |
452 | /* |
453 | * Add verification end_io handler, if asked to verify | |
454 | * a previously written file. | |
455 | */ | |
456 | if (td->o.verify != VERIFY_NONE) | |
457 | io_u->end_io = verify_io_u; | |
458 | ||
11786802 | 459 | ret = td_io_queue(td, io_u); |
36167d82 JA |
460 | switch (ret) { |
461 | case FIO_Q_COMPLETED: | |
5451792e JA |
462 | if (io_u->error) |
463 | ret = -io_u->error; | |
9e9d164e | 464 | else if (io_u->resid) { |
36167d82 | 465 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 466 | struct fio_file *f = io_u->file; |
36167d82 | 467 | |
9e9d164e JA |
468 | /* |
469 | * zero read, fail | |
470 | */ | |
471 | if (!bytes) { | |
472 | td_verror(td, ENODATA, "full resid"); | |
473 | put_io_u(td, io_u); | |
474 | break; | |
475 | } | |
476 | ||
cec6b55d | 477 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 478 | io_u->xfer_buf += bytes; |
5a7c5680 | 479 | io_u->offset += bytes; |
d460eb31 | 480 | f->last_completed_pos = io_u->offset; |
5a7c5680 | 481 | |
30061b97 JA |
482 | td->ts.short_io_u[io_u->ddir]++; |
483 | ||
d460eb31 | 484 | if (io_u->offset == f->real_file_size) |
5a7c5680 JA |
485 | goto sync_done; |
486 | ||
11786802 JA |
487 | requeue_io_u(td, &io_u); |
488 | } else { | |
5a7c5680 | 489 | sync_done: |
11786802 JA |
490 | fio_gettime(&comp_time, NULL); |
491 | bytes_done = io_u_sync_complete(td, io_u); | |
492 | if (bytes_done < 0) | |
493 | ret = bytes_done; | |
cec6b55d | 494 | } |
36167d82 JA |
495 | break; |
496 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
497 | /* |
498 | * if the engine doesn't have a commit hook, | |
499 | * the io_u is really queued. if it does have such | |
500 | * a hook, it has to call io_u_queued() itself. | |
501 | */ | |
502 | if (td->io_ops->commit == NULL) | |
503 | io_u_queued(td, io_u); | |
36167d82 | 504 | break; |
755200a3 JA |
505 | case FIO_Q_BUSY: |
506 | requeue_io_u(td, &io_u); | |
5451792e JA |
507 | ret2 = td_io_commit(td); |
508 | if (ret2 < 0) | |
509 | ret = ret2; | |
755200a3 | 510 | break; |
36167d82 JA |
511 | default: |
512 | assert(ret < 0); | |
513 | put_io_u(td, io_u); | |
514 | break; | |
ebac4655 JA |
515 | } |
516 | ||
99784632 | 517 | if (ret < 0 || td->error) |
36167d82 JA |
518 | break; |
519 | ||
97601024 JA |
520 | /* |
521 | * See if we need to complete some commands | |
522 | */ | |
755200a3 | 523 | if (ret == FIO_Q_QUEUED || ret == FIO_Q_BUSY) { |
97601024 | 524 | min_evts = 0; |
e916b390 | 525 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
36167d82 | 526 | min_evts = 1; |
ebac4655 | 527 | |
2dc1bbeb JA |
528 | if (td->cur_depth > td->o.iodepth_low) |
529 | min_evts = td->cur_depth - td->o.iodepth_low; | |
e916b390 JA |
530 | } |
531 | ||
97601024 | 532 | fio_gettime(&comp_time, NULL); |
d7762cf8 | 533 | bytes_done = io_u_queued_complete(td, min_evts); |
97601024 | 534 | if (bytes_done < 0) |
36167d82 | 535 | break; |
ebac4655 JA |
536 | } |
537 | ||
97601024 JA |
538 | if (!bytes_done) |
539 | continue; | |
540 | ||
ebac4655 JA |
541 | /* |
542 | * the rate is batched for now, it should work for batches | |
543 | * of completions except the very first one which may look | |
544 | * a little bursty | |
545 | */ | |
97601024 | 546 | usec = utime_since(&s, &comp_time); |
ebac4655 | 547 | |
413dd459 | 548 | rate_throttle(td, usec, bytes_done); |
ebac4655 | 549 | |
97601024 | 550 | if (check_min_rate(td, &comp_time)) { |
98aa62d8 | 551 | if (exitall_on_terminate) |
390c40e2 | 552 | terminate_threads(td->groupid); |
e1161c32 | 553 | td_verror(td, ENODATA, "check_min_rate"); |
ebac4655 JA |
554 | break; |
555 | } | |
556 | ||
2dc1bbeb | 557 | if (td->o.thinktime) { |
9c1f7434 JA |
558 | unsigned long long b; |
559 | ||
560 | b = td->io_blocks[0] + td->io_blocks[1]; | |
2dc1bbeb | 561 | if (!(b % td->o.thinktime_blocks)) { |
48097d5c JA |
562 | int left; |
563 | ||
2dc1bbeb JA |
564 | if (td->o.thinktime_spin) |
565 | __usec_sleep(td->o.thinktime_spin); | |
48097d5c | 566 | |
2dc1bbeb | 567 | left = td->o.thinktime - td->o.thinktime_spin; |
48097d5c JA |
568 | if (left) |
569 | usec_sleep(td, left); | |
570 | } | |
9c1f7434 | 571 | } |
ebac4655 JA |
572 | } |
573 | ||
aa31f1f1 SL |
574 | if (td->o.fill_device && td->error == ENOSPC) { |
575 | td->error = 0; | |
576 | td->terminate = 1; | |
577 | } | |
4d2413c6 | 578 | if (!td->error) { |
3d7c391d JA |
579 | struct fio_file *f; |
580 | ||
c01c0395 JA |
581 | i = td->cur_depth; |
582 | if (i) | |
583 | ret = io_u_queued_complete(td, i); | |
ebac4655 | 584 | |
2dc1bbeb | 585 | if (should_fsync(td) && td->o.end_fsync) { |
84585003 | 586 | td_set_runstate(td, TD_FSYNCING); |
3d7b485f JA |
587 | |
588 | for_each_file(td, f, i) { | |
589 | if (!(f->flags & FIO_FILE_OPEN)) | |
590 | continue; | |
858a3d47 | 591 | fio_io_sync(td, f); |
3d7b485f | 592 | } |
84585003 | 593 | } |
c01c0395 JA |
594 | } else |
595 | cleanup_pending_aio(td); | |
2ba1c290 JA |
596 | |
597 | /* | |
598 | * stop job if we failed doing any IO | |
599 | */ | |
600 | if ((td->this_io_bytes[0] + td->this_io_bytes[1]) == 0) | |
601 | td->done = 1; | |
ebac4655 JA |
602 | } |
603 | ||
ebac4655 JA |
604 | static void cleanup_io_u(struct thread_data *td) |
605 | { | |
606 | struct list_head *entry, *n; | |
607 | struct io_u *io_u; | |
608 | ||
609 | list_for_each_safe(entry, n, &td->io_u_freelist) { | |
610 | io_u = list_entry(entry, struct io_u, list); | |
611 | ||
612 | list_del(&io_u->list); | |
613 | free(io_u); | |
614 | } | |
615 | ||
2f9ade3c | 616 | free_io_mem(td); |
ebac4655 JA |
617 | } |
618 | ||
6b9cea23 JA |
619 | /* |
620 | * "randomly" fill the buffer contents | |
621 | */ | |
e9459e5a | 622 | static void fill_io_buf(struct thread_data *td, struct io_u *io_u, int max_bs) |
6b9cea23 | 623 | { |
210f43b3 | 624 | long *ptr = io_u->buf; |
6b9cea23 | 625 | |
e9459e5a JA |
626 | if (!td->o.zero_buffers) { |
627 | while ((void *) ptr - io_u->buf < max_bs) { | |
210f43b3 | 628 | *ptr = rand() * GOLDEN_RATIO_PRIME; |
e9459e5a JA |
629 | ptr++; |
630 | } | |
631 | } else | |
632 | memset(ptr, 0, max_bs); | |
6b9cea23 JA |
633 | } |
634 | ||
ebac4655 JA |
635 | static int init_io_u(struct thread_data *td) |
636 | { | |
637 | struct io_u *io_u; | |
a00735e6 | 638 | unsigned int max_bs; |
ebac4655 JA |
639 | int i, max_units; |
640 | char *p; | |
641 | ||
1e3c09af | 642 | max_units = td->o.iodepth; |
2dc1bbeb | 643 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
c3990645 | 644 | td->orig_buffer_size = (unsigned long long) max_bs * (unsigned long long) max_units; |
74b025b0 | 645 | |
2dc1bbeb JA |
646 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) |
647 | td->orig_buffer_size = (td->orig_buffer_size + td->o.hugepage_size - 1) & ~(td->o.hugepage_size - 1); | |
ebac4655 | 648 | |
c3990645 JA |
649 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { |
650 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
651 | return 1; | |
652 | } | |
653 | ||
2f9ade3c JA |
654 | if (allocate_io_mem(td)) |
655 | return 1; | |
ebac4655 | 656 | |
b3f378e9 JA |
657 | if (td->o.odirect) |
658 | p = ALIGN(td->orig_buffer); | |
659 | else | |
660 | p = td->orig_buffer; | |
661 | ||
ebac4655 | 662 | for (i = 0; i < max_units; i++) { |
db1cd90b JA |
663 | if (td->terminate) |
664 | return 1; | |
ebac4655 JA |
665 | io_u = malloc(sizeof(*io_u)); |
666 | memset(io_u, 0, sizeof(*io_u)); | |
667 | INIT_LIST_HEAD(&io_u->list); | |
668 | ||
b4c5e1ac JA |
669 | if (!(td->io_ops->flags & FIO_NOIO)) { |
670 | io_u->buf = p + max_bs * i; | |
e9459e5a | 671 | |
b4c5e1ac JA |
672 | if (td_write(td)) |
673 | fill_io_buf(td, io_u, max_bs); | |
674 | } | |
6b9cea23 | 675 | |
b1ff3403 | 676 | io_u->index = i; |
0c6e7517 | 677 | io_u->flags = IO_U_F_FREE; |
ebac4655 JA |
678 | list_add(&io_u->list, &td->io_u_freelist); |
679 | } | |
680 | ||
433afcb4 JA |
681 | io_u_init_timeout(); |
682 | ||
ebac4655 JA |
683 | return 0; |
684 | } | |
685 | ||
da86774e JA |
686 | static int switch_ioscheduler(struct thread_data *td) |
687 | { | |
688 | char tmp[256], tmp2[128]; | |
689 | FILE *f; | |
690 | int ret; | |
691 | ||
ba0fbe10 | 692 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
693 | return 0; |
694 | ||
da86774e JA |
695 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
696 | ||
697 | f = fopen(tmp, "r+"); | |
698 | if (!f) { | |
cbf5c1d7 JA |
699 | if (errno == ENOENT) { |
700 | log_err("fio: os or kernel doesn't support IO scheduler switching\n"); | |
701 | return 0; | |
702 | } | |
703 | td_verror(td, errno, "fopen iosched"); | |
da86774e JA |
704 | return 1; |
705 | } | |
706 | ||
707 | /* | |
708 | * Set io scheduler. | |
709 | */ | |
2dc1bbeb | 710 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); |
da86774e | 711 | if (ferror(f) || ret != 1) { |
e1161c32 | 712 | td_verror(td, errno, "fwrite"); |
da86774e JA |
713 | fclose(f); |
714 | return 1; | |
715 | } | |
716 | ||
717 | rewind(f); | |
718 | ||
719 | /* | |
720 | * Read back and check that the selected scheduler is now the default. | |
721 | */ | |
722 | ret = fread(tmp, 1, sizeof(tmp), f); | |
723 | if (ferror(f) || ret < 0) { | |
e1161c32 | 724 | td_verror(td, errno, "fread"); |
da86774e JA |
725 | fclose(f); |
726 | return 1; | |
727 | } | |
728 | ||
2dc1bbeb | 729 | sprintf(tmp2, "[%s]", td->o.ioscheduler); |
da86774e | 730 | if (!strstr(tmp, tmp2)) { |
2dc1bbeb | 731 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); |
e1161c32 | 732 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
733 | fclose(f); |
734 | return 1; | |
735 | } | |
736 | ||
737 | fclose(f); | |
738 | return 0; | |
739 | } | |
740 | ||
492158cf JA |
741 | static int keep_running(struct thread_data *td) |
742 | { | |
743 | unsigned long long io_done; | |
744 | ||
20e354ef JA |
745 | if (td->done) |
746 | return 0; | |
492158cf JA |
747 | if (td->o.time_based) |
748 | return 1; | |
749 | if (td->o.loops) { | |
750 | td->o.loops--; | |
751 | return 1; | |
752 | } | |
753 | ||
48f5abd3 | 754 | io_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE] + td->io_skip_bytes; |
492158cf JA |
755 | if (io_done < td->o.size) |
756 | return 1; | |
757 | ||
758 | return 0; | |
759 | } | |
760 | ||
a978ba68 | 761 | static int clear_io_state(struct thread_data *td) |
ebac4655 | 762 | { |
53cdc686 | 763 | struct fio_file *f; |
af52b345 JA |
764 | unsigned int i; |
765 | int ret; | |
ebac4655 | 766 | |
756867bd | 767 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 768 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 769 | td->zone_bytes = 0; |
d7d3b49b | 770 | td->rate_bytes = 0; |
4e991c23 | 771 | td->rate_blocks = 0; |
38d77cae | 772 | td->rw_end_set[0] = td->rw_end_set[1] = 0; |
ebac4655 | 773 | |
c1324df1 JA |
774 | td->last_was_sync = 0; |
775 | ||
2ba1c290 JA |
776 | /* |
777 | * reset file done count if we are to start over | |
778 | */ | |
779 | if (td->o.time_based || td->o.loops) | |
48f5abd3 | 780 | td->nr_done_files = 0; |
281f9b63 | 781 | |
a978ba68 JA |
782 | for_each_file(td, f, i) |
783 | td_io_close_file(td, f); | |
53cdc686 | 784 | |
a978ba68 JA |
785 | ret = 0; |
786 | for_each_file(td, f, i) { | |
281f9b63 | 787 | f->flags &= ~FIO_FILE_DONE; |
a978ba68 JA |
788 | ret = td_io_open_file(td, f); |
789 | if (ret) | |
790 | break; | |
53cdc686 | 791 | } |
a978ba68 JA |
792 | |
793 | return ret; | |
ebac4655 JA |
794 | } |
795 | ||
906c8d75 JA |
796 | /* |
797 | * Entry point for the thread based jobs. The process based jobs end up | |
798 | * here as well, after a little setup. | |
799 | */ | |
ebac4655 JA |
800 | static void *thread_main(void *data) |
801 | { | |
10927316 | 802 | unsigned long long runtime[2], elapsed; |
ebac4655 | 803 | struct thread_data *td = data; |
a978ba68 | 804 | int clear_state; |
ebac4655 | 805 | |
2dc1bbeb | 806 | if (!td->o.use_thread) |
ebac4655 JA |
807 | setsid(); |
808 | ||
809 | td->pid = getpid(); | |
810 | ||
ee56ad50 JA |
811 | dprint(FD_PROCESS, "jobs pid=%d started\n", td->pid); |
812 | ||
aea47d44 JA |
813 | INIT_LIST_HEAD(&td->io_u_freelist); |
814 | INIT_LIST_HEAD(&td->io_u_busylist); | |
755200a3 | 815 | INIT_LIST_HEAD(&td->io_u_requeues); |
aea47d44 | 816 | INIT_LIST_HEAD(&td->io_log_list); |
8de8f047 | 817 | INIT_LIST_HEAD(&td->io_hist_list); |
bb5d7d0b | 818 | td->io_hist_tree = RB_ROOT; |
aea47d44 | 819 | |
db1cd90b JA |
820 | td_set_runstate(td, TD_INITIALIZED); |
821 | fio_sem_up(startup_sem); | |
822 | fio_sem_down(td->mutex); | |
823 | ||
824 | /* | |
825 | * the ->mutex semaphore is now no longer used, close it to avoid | |
826 | * eating a file descriptor | |
827 | */ | |
828 | fio_sem_remove(td->mutex); | |
829 | ||
d84f8d49 JA |
830 | /* |
831 | * May alter parameters that init_io_u() will use, so we need to | |
832 | * do this first. | |
833 | */ | |
834 | if (init_iolog(td)) | |
835 | goto err; | |
836 | ||
ebac4655 | 837 | if (init_io_u(td)) |
db1cd90b | 838 | goto err; |
ebac4655 | 839 | |
375b2695 | 840 | if (td->o.cpumask_set && fio_setaffinity(td) == -1) { |
e1161c32 | 841 | td_verror(td, errno, "cpu_set_affinity"); |
db1cd90b | 842 | goto err; |
ebac4655 JA |
843 | } |
844 | ||
ac684785 | 845 | if (td->ioprio_set) { |
ebac4655 | 846 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
e1161c32 | 847 | td_verror(td, errno, "ioprio_set"); |
db1cd90b | 848 | goto err; |
ebac4655 JA |
849 | } |
850 | } | |
851 | ||
2dc1bbeb | 852 | if (nice(td->o.nice) == -1) { |
e1161c32 | 853 | td_verror(td, errno, "nice"); |
db1cd90b | 854 | goto err; |
b6f4d880 JA |
855 | } |
856 | ||
2dc1bbeb | 857 | if (td->o.ioscheduler && switch_ioscheduler(td)) |
db1cd90b | 858 | goto err; |
37f56873 | 859 | |
2dc1bbeb | 860 | if (!td->o.create_serialize && setup_files(td)) |
ebac4655 JA |
861 | goto err; |
862 | ||
7d6c5283 JA |
863 | if (td_io_init(td)) |
864 | goto err; | |
865 | ||
b5af8293 JA |
866 | if (open_files(td)) |
867 | goto err; | |
868 | ||
68727076 JA |
869 | if (init_random_map(td)) |
870 | goto err; | |
871 | ||
2dc1bbeb JA |
872 | if (td->o.exec_prerun) { |
873 | if (system(td->o.exec_prerun) < 0) | |
69cfd7e0 JA |
874 | goto err; |
875 | } | |
4e0ba8af | 876 | |
69008999 | 877 | fio_gettime(&td->epoch, NULL); |
433afcb4 | 878 | memcpy(&td->timeout_end, &td->epoch, sizeof(td->epoch)); |
756867bd | 879 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 JA |
880 | |
881 | runtime[0] = runtime[1] = 0; | |
a978ba68 | 882 | clear_state = 0; |
492158cf | 883 | while (keep_running(td)) { |
02bcaa8c | 884 | fio_gettime(&td->start, NULL); |
756867bd | 885 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
ebac4655 | 886 | |
2dc1bbeb | 887 | if (td->o.ratemin) |
756867bd | 888 | memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate)); |
ebac4655 | 889 | |
a978ba68 JA |
890 | if (clear_state && clear_io_state(td)) |
891 | break; | |
892 | ||
ebac4655 JA |
893 | prune_io_piece_log(td); |
894 | ||
ba0fbe10 | 895 | do_io(td); |
ebac4655 | 896 | |
a978ba68 JA |
897 | clear_state = 1; |
898 | ||
38d77cae JA |
899 | if (td_read(td) && td->io_bytes[DDIR_READ]) { |
900 | if (td->rw_end_set[DDIR_READ]) | |
901 | elapsed = utime_since(&td->start, &td->rw_end[DDIR_READ]); | |
902 | else | |
903 | elapsed = utime_since_now(&td->start); | |
904 | ||
905 | runtime[DDIR_READ] += elapsed; | |
906 | } | |
907 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { | |
908 | if (td->rw_end_set[DDIR_WRITE]) | |
909 | elapsed = utime_since(&td->start, &td->rw_end[DDIR_WRITE]); | |
910 | else | |
911 | elapsed = utime_since_now(&td->start); | |
912 | ||
913 | runtime[DDIR_WRITE] += elapsed; | |
914 | } | |
413dd459 | 915 | |
ebac4655 JA |
916 | if (td->error || td->terminate) |
917 | break; | |
918 | ||
e84c73a8 SL |
919 | if (!td->o.do_verify || |
920 | td->o.verify == VERIFY_NONE || | |
b67740d3 | 921 | (td->io_ops->flags & FIO_UNIDIR)) |
ebac4655 JA |
922 | continue; |
923 | ||
a978ba68 JA |
924 | if (clear_io_state(td)) |
925 | break; | |
926 | ||
02bcaa8c | 927 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
928 | |
929 | do_verify(td); | |
930 | ||
69008999 | 931 | runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
932 | |
933 | if (td->error || td->terminate) | |
934 | break; | |
935 | } | |
936 | ||
36dff966 | 937 | update_rusage_stat(td); |
47f0cc48 YHJT |
938 | td->ts.runtime[0] = (runtime[0] + 999) / 1000; |
939 | td->ts.runtime[1] = (runtime[1] + 999) / 1000; | |
756867bd JA |
940 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
941 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
942 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
943 | ||
944 | if (td->ts.bw_log) | |
945 | finish_log(td, td->ts.bw_log, "bw"); | |
946 | if (td->ts.slat_log) | |
947 | finish_log(td, td->ts.slat_log, "slat"); | |
948 | if (td->ts.clat_log) | |
949 | finish_log(td, td->ts.clat_log, "clat"); | |
2dc1bbeb JA |
950 | if (td->o.exec_postrun) { |
951 | if (system(td->o.exec_postrun) < 0) | |
952 | log_err("fio: postrun %s failed\n", td->o.exec_postrun); | |
69cfd7e0 | 953 | } |
ebac4655 JA |
954 | |
955 | if (exitall_on_terminate) | |
390c40e2 | 956 | terminate_threads(td->groupid); |
ebac4655 JA |
957 | |
958 | err: | |
5bf13a5a JA |
959 | if (td->error) |
960 | printf("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
53cdc686 | 961 | close_files(td); |
2866c82d | 962 | close_ioengine(td); |
ebac4655 | 963 | cleanup_io_u(td); |
f29b25a3 JA |
964 | |
965 | /* | |
966 | * do this very late, it will log file closing as well | |
967 | */ | |
968 | if (td->o.write_iolog_file) | |
969 | write_iolog_close(td); | |
970 | ||
d23bb327 | 971 | options_mem_free(td); |
ebac4655 | 972 | td_set_runstate(td, TD_EXITED); |
43d76807 | 973 | return (void *) (unsigned long) td->error; |
ebac4655 JA |
974 | } |
975 | ||
906c8d75 JA |
976 | /* |
977 | * We cannot pass the td data into a forked process, so attach the td and | |
978 | * pass it to the thread worker. | |
979 | */ | |
a6418147 | 980 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
981 | { |
982 | struct thread_data *td; | |
a6418147 | 983 | void *data, *ret; |
ebac4655 JA |
984 | |
985 | data = shmat(shmid, NULL, 0); | |
986 | if (data == (void *) -1) { | |
a6418147 JA |
987 | int __err = errno; |
988 | ||
ebac4655 | 989 | perror("shmat"); |
a6418147 | 990 | return __err; |
ebac4655 JA |
991 | } |
992 | ||
993 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 994 | ret = thread_main(td); |
ebac4655 | 995 | shmdt(data); |
43d76807 | 996 | return (int) (unsigned long) ret; |
ebac4655 JA |
997 | } |
998 | ||
906c8d75 JA |
999 | /* |
1000 | * Run over the job map and reap the threads that have exited, if any. | |
1001 | */ | |
ebac4655 JA |
1002 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
1003 | { | |
34572e28 | 1004 | struct thread_data *td; |
1f809d15 | 1005 | int i, cputhreads, realthreads, pending, status, ret; |
ebac4655 JA |
1006 | |
1007 | /* | |
1008 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1009 | */ | |
1f809d15 | 1010 | realthreads = pending = cputhreads = 0; |
34572e28 | 1011 | for_each_td(td, i) { |
3707f45b | 1012 | int flags = 0; |
a2f77c9f | 1013 | |
84585003 JA |
1014 | /* |
1015 | * ->io_ops is NULL for a thread that has closed its | |
1016 | * io engine | |
1017 | */ | |
ba0fbe10 | 1018 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 | 1019 | cputhreads++; |
1f809d15 JA |
1020 | else |
1021 | realthreads++; | |
b990b5c0 | 1022 | |
a2f77c9f JA |
1023 | if (!td->pid || td->runstate == TD_REAPED) |
1024 | continue; | |
2dc1bbeb | 1025 | if (td->o.use_thread) { |
3707f45b JA |
1026 | if (td->runstate == TD_EXITED) { |
1027 | td_set_runstate(td, TD_REAPED); | |
1028 | goto reaped; | |
1029 | } | |
1030 | continue; | |
1031 | } | |
a2f77c9f JA |
1032 | |
1033 | flags = WNOHANG; | |
1034 | if (td->runstate == TD_EXITED) | |
1035 | flags = 0; | |
1036 | ||
1037 | /* | |
1038 | * check if someone quit or got killed in an unusual way | |
1039 | */ | |
1040 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 1041 | if (ret < 0) { |
a2f77c9f JA |
1042 | if (errno == ECHILD) { |
1043 | log_err("fio: pid=%d disappeared %d\n", td->pid, td->runstate); | |
1044 | td_set_runstate(td, TD_REAPED); | |
1045 | goto reaped; | |
1046 | } | |
1047 | perror("waitpid"); | |
1048 | } else if (ret == td->pid) { | |
1049 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
1050 | int sig = WTERMSIG(status); |
1051 | ||
d9244941 JA |
1052 | if (sig != SIGQUIT) |
1053 | log_err("fio: pid=%d, got signal=%d\n", td->pid, sig); | |
fab6aa71 JA |
1054 | td_set_runstate(td, TD_REAPED); |
1055 | goto reaped; | |
1056 | } | |
a2f77c9f JA |
1057 | if (WIFEXITED(status)) { |
1058 | if (WEXITSTATUS(status) && !td->error) | |
1059 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 1060 | |
a2f77c9f JA |
1061 | td_set_runstate(td, TD_REAPED); |
1062 | goto reaped; | |
a6418147 JA |
1063 | } |
1064 | } | |
ebac4655 | 1065 | |
a2f77c9f JA |
1066 | /* |
1067 | * thread is not dead, continue | |
1068 | */ | |
e48676ba | 1069 | pending++; |
a2f77c9f | 1070 | continue; |
fab6aa71 | 1071 | reaped: |
2dc1bbeb | 1072 | if (td->o.use_thread) { |
3707f45b JA |
1073 | long ret; |
1074 | ||
ee56ad50 JA |
1075 | dprint(FD_PROCESS, "joining tread %d\n", td->pid); |
1076 | if (pthread_join(td->thread, (void *) &ret)) { | |
1077 | dprint(FD_PROCESS, "join failed %ld\n", ret); | |
3707f45b | 1078 | perror("pthread_join"); |
ee56ad50 | 1079 | } |
3707f45b JA |
1080 | } |
1081 | ||
ebac4655 | 1082 | (*nr_running)--; |
2dc1bbeb JA |
1083 | (*m_rate) -= td->o.ratemin; |
1084 | (*t_rate) -= td->o.rate; | |
e48676ba | 1085 | pending--; |
a2f77c9f JA |
1086 | |
1087 | if (td->error) | |
1088 | exit_value++; | |
ebac4655 | 1089 | } |
b990b5c0 | 1090 | |
1f809d15 | 1091 | if (*nr_running == cputhreads && !pending && realthreads) |
390c40e2 | 1092 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
1093 | } |
1094 | ||
906c8d75 JA |
1095 | /* |
1096 | * Main function for kicking off and reaping jobs, as needed. | |
1097 | */ | |
ebac4655 JA |
1098 | static void run_threads(void) |
1099 | { | |
ebac4655 JA |
1100 | struct thread_data *td; |
1101 | unsigned long spent; | |
1102 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 1103 | |
2f9ade3c JA |
1104 | if (fio_pin_memory()) |
1105 | return; | |
ebac4655 | 1106 | |
c6ae0a5b | 1107 | if (!terse_output) { |
9cedf167 JA |
1108 | printf("Starting "); |
1109 | if (nr_thread) | |
1110 | printf("%d thread%s", nr_thread, nr_thread > 1 ? "s" : ""); | |
1111 | if (nr_process) { | |
1112 | if (nr_thread) | |
1113 | printf(" and "); | |
1114 | printf("%d process%s", nr_process, nr_process > 1 ? "es" : ""); | |
1115 | } | |
1116 | printf("\n"); | |
c6ae0a5b JA |
1117 | fflush(stdout); |
1118 | } | |
c04f7ec3 | 1119 | |
4efa970e JA |
1120 | signal(SIGINT, sig_handler); |
1121 | signal(SIGALRM, sig_handler); | |
1122 | ||
ebac4655 JA |
1123 | todo = thread_number; |
1124 | nr_running = 0; | |
1125 | nr_started = 0; | |
1126 | m_rate = t_rate = 0; | |
1127 | ||
34572e28 | 1128 | for_each_td(td, i) { |
263e529f | 1129 | print_status_init(td->thread_number - 1); |
ebac4655 | 1130 | |
2dc1bbeb | 1131 | if (!td->o.create_serialize) { |
380cf265 | 1132 | init_disk_util(td); |
ebac4655 | 1133 | continue; |
380cf265 | 1134 | } |
ebac4655 JA |
1135 | |
1136 | /* | |
1137 | * do file setup here so it happens sequentially, | |
1138 | * we don't want X number of threads getting their | |
1139 | * client data interspersed on disk | |
1140 | */ | |
53cdc686 | 1141 | if (setup_files(td)) { |
5bf13a5a JA |
1142 | exit_value++; |
1143 | if (td->error) | |
1144 | log_err("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
ebac4655 JA |
1145 | td_set_runstate(td, TD_REAPED); |
1146 | todo--; | |
1147 | } | |
380cf265 JA |
1148 | |
1149 | init_disk_util(td); | |
ebac4655 JA |
1150 | } |
1151 | ||
a2f77c9f JA |
1152 | set_genesis_time(); |
1153 | ||
ebac4655 | 1154 | while (todo) { |
75154845 JA |
1155 | struct thread_data *map[MAX_JOBS]; |
1156 | struct timeval this_start; | |
1157 | int this_jobs = 0, left; | |
1158 | ||
ebac4655 JA |
1159 | /* |
1160 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1161 | */ | |
34572e28 | 1162 | for_each_td(td, i) { |
ebac4655 JA |
1163 | if (td->runstate != TD_NOT_CREATED) |
1164 | continue; | |
1165 | ||
1166 | /* | |
1167 | * never got a chance to start, killed by other | |
1168 | * thread for some reason | |
1169 | */ | |
1170 | if (td->terminate) { | |
1171 | todo--; | |
1172 | continue; | |
1173 | } | |
1174 | ||
2dc1bbeb | 1175 | if (td->o.start_delay) { |
263e529f | 1176 | spent = mtime_since_genesis(); |
ebac4655 | 1177 | |
2dc1bbeb | 1178 | if (td->o.start_delay * 1000 > spent) |
ebac4655 JA |
1179 | continue; |
1180 | } | |
1181 | ||
2dc1bbeb | 1182 | if (td->o.stonewall && (nr_started || nr_running)) |
ebac4655 JA |
1183 | break; |
1184 | ||
75154845 JA |
1185 | /* |
1186 | * Set state to created. Thread will transition | |
1187 | * to TD_INITIALIZED when it's done setting up. | |
1188 | */ | |
ebac4655 | 1189 | td_set_runstate(td, TD_CREATED); |
75154845 | 1190 | map[this_jobs++] = td; |
ebac4655 JA |
1191 | nr_started++; |
1192 | ||
2dc1bbeb | 1193 | if (td->o.use_thread) { |
ee56ad50 | 1194 | dprint(FD_PROCESS, "will pthread_create\n"); |
ebac4655 JA |
1195 | if (pthread_create(&td->thread, NULL, thread_main, td)) { |
1196 | perror("thread_create"); | |
1197 | nr_started--; | |
c8bb6faf | 1198 | break; |
ebac4655 JA |
1199 | } |
1200 | } else { | |
ee56ad50 | 1201 | dprint(FD_PROCESS, "will fork\n"); |
07739b57 | 1202 | if (!fork()) { |
a6418147 JA |
1203 | int ret = fork_main(shm_id, i); |
1204 | ||
1205 | exit(ret); | |
ebac4655 JA |
1206 | } |
1207 | } | |
07739b57 | 1208 | fio_sem_down(startup_sem); |
ebac4655 JA |
1209 | } |
1210 | ||
1211 | /* | |
75154845 JA |
1212 | * Wait for the started threads to transition to |
1213 | * TD_INITIALIZED. | |
ebac4655 | 1214 | */ |
02bcaa8c | 1215 | fio_gettime(&this_start, NULL); |
75154845 | 1216 | left = this_jobs; |
6ce15a32 | 1217 | while (left && !fio_abort) { |
75154845 JA |
1218 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1219 | break; | |
1220 | ||
1221 | usleep(100000); | |
1222 | ||
1223 | for (i = 0; i < this_jobs; i++) { | |
1224 | td = map[i]; | |
1225 | if (!td) | |
1226 | continue; | |
b6f4d880 | 1227 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1228 | map[i] = NULL; |
1229 | left--; | |
b6f4d880 JA |
1230 | } else if (td->runstate >= TD_EXITED) { |
1231 | map[i] = NULL; | |
1232 | left--; | |
1233 | todo--; | |
1234 | nr_running++; /* work-around... */ | |
75154845 JA |
1235 | } |
1236 | } | |
1237 | } | |
1238 | ||
1239 | if (left) { | |
3b70d7e5 | 1240 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1241 | for (i = 0; i < this_jobs; i++) { |
1242 | td = map[i]; | |
1243 | if (!td) | |
1244 | continue; | |
1245 | kill(td->pid, SIGTERM); | |
1246 | } | |
1247 | break; | |
1248 | } | |
1249 | ||
1250 | /* | |
b6f4d880 | 1251 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1252 | */ |
34572e28 | 1253 | for_each_td(td, i) { |
75154845 | 1254 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1255 | continue; |
1256 | ||
1257 | td_set_runstate(td, TD_RUNNING); | |
1258 | nr_running++; | |
1259 | nr_started--; | |
2dc1bbeb JA |
1260 | m_rate += td->o.ratemin; |
1261 | t_rate += td->o.rate; | |
75154845 | 1262 | todo--; |
07739b57 | 1263 | fio_sem_up(td->mutex); |
ebac4655 JA |
1264 | } |
1265 | ||
1266 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1267 | ||
1268 | if (todo) | |
1269 | usleep(100000); | |
1270 | } | |
1271 | ||
1272 | while (nr_running) { | |
1273 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1274 | usleep(10000); | |
1275 | } | |
1276 | ||
1277 | update_io_ticks(); | |
2f9ade3c | 1278 | fio_unpin_memory(); |
ebac4655 JA |
1279 | } |
1280 | ||
ebac4655 JA |
1281 | int main(int argc, char *argv[]) |
1282 | { | |
29d610e1 JA |
1283 | long ps; |
1284 | ||
dbe1125e JA |
1285 | /* |
1286 | * We need locale for number printing, if it isn't set then just | |
1287 | * go with the US format. | |
1288 | */ | |
1289 | if (!getenv("LC_NUMERIC")) | |
1290 | setlocale(LC_NUMERIC, "en_US"); | |
1291 | ||
ebac4655 JA |
1292 | if (parse_options(argc, argv)) |
1293 | return 1; | |
1294 | ||
4b472fa3 JA |
1295 | if (!thread_number) |
1296 | return 0; | |
ebac4655 | 1297 | |
29d610e1 JA |
1298 | ps = sysconf(_SC_PAGESIZE); |
1299 | if (ps < 0) { | |
1300 | log_err("Failed to get page size\n"); | |
1301 | return 1; | |
1302 | } | |
1303 | ||
cfc99db7 | 1304 | page_size = ps; |
29d610e1 JA |
1305 | page_mask = ps - 1; |
1306 | ||
bb3884d8 JA |
1307 | if (write_bw_log) { |
1308 | setup_log(&agg_io_log[DDIR_READ]); | |
1309 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1310 | } | |
1311 | ||
07739b57 JA |
1312 | startup_sem = fio_sem_init(0); |
1313 | ||
a2f77c9f JA |
1314 | set_genesis_time(); |
1315 | ||
ebac4655 JA |
1316 | disk_util_timer_arm(); |
1317 | ||
1318 | run_threads(); | |
6ce15a32 | 1319 | |
bb3884d8 | 1320 | if (!fio_abort) { |
6ce15a32 | 1321 | show_run_stats(); |
bb3884d8 JA |
1322 | if (write_bw_log) { |
1323 | __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log"); | |
1324 | __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log"); | |
1325 | } | |
1326 | } | |
ebac4655 | 1327 | |
07739b57 | 1328 | fio_sem_remove(startup_sem); |
437c9b71 | 1329 | return exit_value; |
ebac4655 | 1330 | } |