Commit | Line | Data |
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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" | |
38 | #include "os.h" | |
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 | { | |
63 | td->runstate = runstate; | |
64 | } | |
65 | ||
390c40e2 | 66 | static void terminate_threads(int group_id) |
ebac4655 | 67 | { |
34572e28 | 68 | struct thread_data *td; |
ebac4655 JA |
69 | int i; |
70 | ||
34572e28 | 71 | for_each_td(td, i) { |
ebac4655 | 72 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
c1302d44 JA |
73 | /* |
74 | * if the thread is running, just let it exit | |
75 | */ | |
76 | if (td->runstate < TD_RUNNING) | |
77 | kill(td->pid, SIGQUIT); | |
ebac4655 JA |
78 | td->terminate = 1; |
79 | td->start_delay = 0; | |
80 | } | |
81 | } | |
82 | } | |
83 | ||
84 | static void sig_handler(int sig) | |
85 | { | |
86 | switch (sig) { | |
87 | case SIGALRM: | |
88 | update_io_ticks(); | |
89 | disk_util_timer_arm(); | |
90 | print_thread_status(); | |
91 | break; | |
92 | default: | |
6ce15a32 | 93 | printf("\nfio: terminating on signal %d\n", sig); |
ebac4655 | 94 | fflush(stdout); |
390c40e2 | 95 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
96 | break; |
97 | } | |
98 | } | |
99 | ||
906c8d75 JA |
100 | /* |
101 | * Check if we are above the minimum rate given. | |
102 | */ | |
ebac4655 JA |
103 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
104 | { | |
0904200b | 105 | unsigned long long bytes = 0; |
ebac4655 JA |
106 | unsigned long spent; |
107 | unsigned long rate; | |
ebac4655 | 108 | |
780bf1a1 JA |
109 | /* |
110 | * No minimum rate set, always ok | |
111 | */ | |
112 | if (!td->ratemin) | |
113 | return 0; | |
114 | ||
ebac4655 JA |
115 | /* |
116 | * allow a 2 second settle period in the beginning | |
117 | */ | |
118 | if (mtime_since(&td->start, now) < 2000) | |
119 | return 0; | |
120 | ||
0904200b JA |
121 | if (td_read(td)) |
122 | bytes += td->this_io_bytes[DDIR_READ]; | |
123 | if (td_write(td)) | |
124 | bytes += td->this_io_bytes[DDIR_WRITE]; | |
125 | ||
ebac4655 JA |
126 | /* |
127 | * if rate blocks is set, sample is running | |
128 | */ | |
129 | if (td->rate_bytes) { | |
130 | spent = mtime_since(&td->lastrate, now); | |
131 | if (spent < td->ratecycle) | |
132 | return 0; | |
133 | ||
413dd459 JA |
134 | if (bytes < td->rate_bytes) { |
135 | fprintf(f_out, "%s: min rate %u not met\n", td->name, td->ratemin); | |
ebac4655 | 136 | return 1; |
413dd459 JA |
137 | } else { |
138 | rate = (bytes - td->rate_bytes) / spent; | |
139 | if (rate < td->ratemin || bytes < td->rate_bytes) { | |
140 | fprintf(f_out, "%s: min rate %u not met, got %luKiB/sec\n", td->name, td->ratemin, rate); | |
141 | return 1; | |
142 | } | |
ebac4655 JA |
143 | } |
144 | } | |
145 | ||
0904200b | 146 | td->rate_bytes = bytes; |
ebac4655 JA |
147 | memcpy(&td->lastrate, now, sizeof(*now)); |
148 | return 0; | |
149 | } | |
150 | ||
151 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
152 | { | |
153 | if (!td->timeout) | |
154 | return 0; | |
155 | if (mtime_since(&td->epoch, t) >= td->timeout * 1000) | |
156 | return 1; | |
157 | ||
158 | return 0; | |
159 | } | |
160 | ||
906c8d75 JA |
161 | /* |
162 | * When job exits, we can cancel the in-flight IO if we are using async | |
163 | * io. Attempt to do so. | |
164 | */ | |
ebac4655 JA |
165 | static void cleanup_pending_aio(struct thread_data *td) |
166 | { | |
ebac4655 | 167 | struct list_head *entry, *n; |
ebac4655 JA |
168 | struct io_u *io_u; |
169 | int r; | |
170 | ||
171 | /* | |
172 | * get immediately available events, if any | |
173 | */ | |
d7762cf8 | 174 | r = io_u_queued_complete(td, 0); |
b2fdda43 JA |
175 | if (r < 0) |
176 | return; | |
ebac4655 JA |
177 | |
178 | /* | |
179 | * now cancel remaining active events | |
180 | */ | |
2866c82d | 181 | if (td->io_ops->cancel) { |
ebac4655 JA |
182 | list_for_each_safe(entry, n, &td->io_u_busylist) { |
183 | io_u = list_entry(entry, struct io_u, list); | |
184 | ||
0c6e7517 JA |
185 | /* |
186 | * if the io_u isn't in flight, then that generally | |
187 | * means someone leaked an io_u. complain but fix | |
188 | * it up, so we don't stall here. | |
189 | */ | |
190 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
191 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 192 | put_io_u(td, io_u); |
0c6e7517 JA |
193 | } else { |
194 | r = td->io_ops->cancel(td, io_u); | |
195 | if (!r) | |
196 | put_io_u(td, io_u); | |
197 | } | |
ebac4655 JA |
198 | } |
199 | } | |
200 | ||
97601024 | 201 | if (td->cur_depth) |
d7762cf8 | 202 | r = io_u_queued_complete(td, td->cur_depth); |
ebac4655 JA |
203 | } |
204 | ||
858a3d47 JA |
205 | /* |
206 | * Helper to handle the final sync of a file. Works just like the normal | |
207 | * io path, just does everything sync. | |
208 | */ | |
209 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
210 | { | |
211 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
212 | int ret; |
213 | ||
214 | if (!io_u) | |
215 | return 1; | |
216 | ||
217 | io_u->ddir = DDIR_SYNC; | |
218 | io_u->file = f; | |
219 | ||
220 | if (td_io_prep(td, io_u)) { | |
221 | put_io_u(td, io_u); | |
222 | return 1; | |
223 | } | |
224 | ||
755200a3 | 225 | requeue: |
858a3d47 | 226 | ret = td_io_queue(td, io_u); |
36167d82 | 227 | if (ret < 0) { |
e1161c32 | 228 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 229 | put_io_u(td, io_u); |
858a3d47 | 230 | return 1; |
36167d82 | 231 | } else if (ret == FIO_Q_QUEUED) { |
d7762cf8 | 232 | if (io_u_queued_complete(td, 1) < 0) |
36167d82 | 233 | return 1; |
36167d82 JA |
234 | } else if (ret == FIO_Q_COMPLETED) { |
235 | if (io_u->error) { | |
e1161c32 | 236 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
237 | return 1; |
238 | } | |
858a3d47 | 239 | |
d7762cf8 | 240 | if (io_u_sync_complete(td, io_u) < 0) |
b2fdda43 | 241 | return 1; |
755200a3 JA |
242 | } else if (ret == FIO_Q_BUSY) { |
243 | if (td_io_commit(td)) | |
244 | return 1; | |
245 | goto requeue; | |
858a3d47 JA |
246 | } |
247 | ||
248 | return 0; | |
249 | } | |
250 | ||
906c8d75 | 251 | /* |
34403fb1 | 252 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
253 | * reads the blocks back in, and checks the crc/md5 of the data. |
254 | */ | |
1e97cce9 | 255 | static void do_verify(struct thread_data *td) |
ebac4655 | 256 | { |
53cdc686 | 257 | struct fio_file *f; |
36167d82 | 258 | struct io_u *io_u; |
af52b345 JA |
259 | int ret, min_events; |
260 | unsigned int i; | |
e5b401d4 JA |
261 | |
262 | /* | |
263 | * sync io first and invalidate cache, to make sure we really | |
264 | * read from disk. | |
265 | */ | |
266 | for_each_file(td, f, i) { | |
3d7b485f JA |
267 | if (!(f->flags & FIO_FILE_OPEN)) |
268 | continue; | |
b2fdda43 JA |
269 | if (fio_io_sync(td, f)) |
270 | break; | |
271 | if (file_invalidate_cache(td, f)) | |
272 | break; | |
e5b401d4 | 273 | } |
ebac4655 | 274 | |
b2fdda43 JA |
275 | if (td->error) |
276 | return; | |
277 | ||
ebac4655 JA |
278 | td_set_runstate(td, TD_VERIFYING); |
279 | ||
36167d82 JA |
280 | io_u = NULL; |
281 | while (!td->terminate) { | |
5451792e JA |
282 | int ret2; |
283 | ||
ebac4655 JA |
284 | io_u = __get_io_u(td); |
285 | if (!io_u) | |
286 | break; | |
287 | ||
069c2918 JA |
288 | if (runtime_exceeded(td, &io_u->start_time)) { |
289 | put_io_u(td, io_u); | |
02bcaa8c | 290 | break; |
069c2918 | 291 | } |
02bcaa8c | 292 | |
069c2918 JA |
293 | if (get_next_verify(td, io_u)) { |
294 | put_io_u(td, io_u); | |
ebac4655 | 295 | break; |
069c2918 | 296 | } |
ebac4655 | 297 | |
069c2918 JA |
298 | if (td_io_prep(td, io_u)) { |
299 | put_io_u(td, io_u); | |
53cdc686 | 300 | break; |
069c2918 | 301 | } |
d7762cf8 JA |
302 | |
303 | io_u->end_io = verify_io_u; | |
53cdc686 | 304 | |
11786802 | 305 | ret = td_io_queue(td, io_u); |
36167d82 JA |
306 | switch (ret) { |
307 | case FIO_Q_COMPLETED: | |
308 | if (io_u->error) | |
22819ec2 | 309 | ret = -io_u->error; |
9e9d164e | 310 | else if (io_u->resid) { |
36167d82 | 311 | int bytes = io_u->xfer_buflen - io_u->resid; |
ebac4655 | 312 | |
9e9d164e JA |
313 | /* |
314 | * zero read, fail | |
315 | */ | |
316 | if (!bytes) { | |
317 | td_verror(td, ENODATA, "full resid"); | |
318 | put_io_u(td, io_u); | |
319 | break; | |
320 | } | |
36167d82 JA |
321 | io_u->xfer_buflen = io_u->resid; |
322 | io_u->xfer_buf += bytes; | |
11786802 JA |
323 | requeue_io_u(td, &io_u); |
324 | } else { | |
325 | ret = io_u_sync_complete(td, io_u); | |
326 | if (ret < 0) | |
327 | break; | |
36167d82 | 328 | } |
36167d82 JA |
329 | continue; |
330 | case FIO_Q_QUEUED: | |
331 | break; | |
755200a3 JA |
332 | case FIO_Q_BUSY: |
333 | requeue_io_u(td, &io_u); | |
5451792e JA |
334 | ret2 = td_io_commit(td); |
335 | if (ret2 < 0) | |
336 | ret = ret2; | |
755200a3 | 337 | break; |
36167d82 JA |
338 | default: |
339 | assert(ret < 0); | |
e1161c32 | 340 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
341 | break; |
342 | } | |
343 | ||
99784632 | 344 | if (ret < 0 || td->error) |
3af6ef39 JA |
345 | break; |
346 | ||
ebac4655 | 347 | /* |
3af6ef39 JA |
348 | * if we can queue more, do so. but check if there are |
349 | * completed io_u's first. | |
ebac4655 | 350 | */ |
97601024 | 351 | min_events = 0; |
e916b390 | 352 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
3af6ef39 | 353 | min_events = 1; |
3af6ef39 | 354 | |
e916b390 JA |
355 | if (td->cur_depth > td->iodepth_low) |
356 | min_events = td->cur_depth - td->iodepth_low; | |
357 | } | |
358 | ||
3af6ef39 JA |
359 | /* |
360 | * Reap required number of io units, if any, and do the | |
361 | * verification on them through the callback handler | |
362 | */ | |
d7762cf8 | 363 | if (io_u_queued_complete(td, min_events) < 0) |
ebac4655 | 364 | break; |
36167d82 | 365 | } |
ebac4655 | 366 | |
c01c0395 JA |
367 | if (!td->error) { |
368 | min_events = td->cur_depth; | |
369 | ||
370 | if (min_events) | |
371 | ret = io_u_queued_complete(td, min_events); | |
372 | } else | |
ebac4655 JA |
373 | cleanup_pending_aio(td); |
374 | ||
375 | td_set_runstate(td, TD_RUNNING); | |
376 | } | |
377 | ||
32cd46a0 | 378 | /* |
906c8d75 | 379 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
380 | * and reaps them, checking for rate and errors along the way. |
381 | */ | |
ebac4655 JA |
382 | static void do_io(struct thread_data *td) |
383 | { | |
02bcaa8c | 384 | struct timeval s; |
ebac4655 | 385 | unsigned long usec; |
af52b345 JA |
386 | unsigned int i; |
387 | int ret = 0; | |
ebac4655 | 388 | |
5853e5a8 JA |
389 | td_set_runstate(td, TD_RUNNING); |
390 | ||
3951414d | 391 | while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->io_size) { |
97601024 JA |
392 | struct timeval comp_time; |
393 | long bytes_done = 0; | |
84585003 | 394 | int min_evts = 0; |
ebac4655 | 395 | struct io_u *io_u; |
5451792e | 396 | int ret2; |
ebac4655 JA |
397 | |
398 | if (td->terminate) | |
399 | break; | |
400 | ||
3d7c391d | 401 | io_u = get_io_u(td); |
ebac4655 JA |
402 | if (!io_u) |
403 | break; | |
404 | ||
405 | memcpy(&s, &io_u->start_time, sizeof(s)); | |
97601024 JA |
406 | |
407 | if (runtime_exceeded(td, &s)) { | |
408 | put_io_u(td, io_u); | |
409 | break; | |
410 | } | |
36167d82 | 411 | |
11786802 | 412 | ret = td_io_queue(td, io_u); |
36167d82 JA |
413 | switch (ret) { |
414 | case FIO_Q_COMPLETED: | |
5451792e JA |
415 | if (io_u->error) |
416 | ret = -io_u->error; | |
9e9d164e | 417 | else if (io_u->resid) { |
36167d82 JA |
418 | int bytes = io_u->xfer_buflen - io_u->resid; |
419 | ||
9e9d164e JA |
420 | /* |
421 | * zero read, fail | |
422 | */ | |
423 | if (!bytes) { | |
424 | td_verror(td, ENODATA, "full resid"); | |
425 | put_io_u(td, io_u); | |
426 | break; | |
427 | } | |
428 | ||
cec6b55d | 429 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 430 | io_u->xfer_buf += bytes; |
11786802 JA |
431 | requeue_io_u(td, &io_u); |
432 | } else { | |
433 | fio_gettime(&comp_time, NULL); | |
434 | bytes_done = io_u_sync_complete(td, io_u); | |
435 | if (bytes_done < 0) | |
436 | ret = bytes_done; | |
cec6b55d | 437 | } |
36167d82 JA |
438 | break; |
439 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
440 | /* |
441 | * if the engine doesn't have a commit hook, | |
442 | * the io_u is really queued. if it does have such | |
443 | * a hook, it has to call io_u_queued() itself. | |
444 | */ | |
445 | if (td->io_ops->commit == NULL) | |
446 | io_u_queued(td, io_u); | |
36167d82 | 447 | break; |
755200a3 JA |
448 | case FIO_Q_BUSY: |
449 | requeue_io_u(td, &io_u); | |
5451792e JA |
450 | ret2 = td_io_commit(td); |
451 | if (ret2 < 0) | |
452 | ret = ret2; | |
755200a3 | 453 | break; |
36167d82 JA |
454 | default: |
455 | assert(ret < 0); | |
456 | put_io_u(td, io_u); | |
457 | break; | |
ebac4655 JA |
458 | } |
459 | ||
99784632 | 460 | if (ret < 0 || td->error) |
36167d82 JA |
461 | break; |
462 | ||
97601024 JA |
463 | /* |
464 | * See if we need to complete some commands | |
465 | */ | |
755200a3 | 466 | if (ret == FIO_Q_QUEUED || ret == FIO_Q_BUSY) { |
97601024 | 467 | min_evts = 0; |
e916b390 | 468 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
36167d82 | 469 | min_evts = 1; |
ebac4655 | 470 | |
e916b390 JA |
471 | if (td->cur_depth > td->iodepth_low) |
472 | min_evts = td->cur_depth - td->iodepth_low; | |
473 | } | |
474 | ||
97601024 | 475 | fio_gettime(&comp_time, NULL); |
d7762cf8 | 476 | bytes_done = io_u_queued_complete(td, min_evts); |
97601024 | 477 | if (bytes_done < 0) |
36167d82 | 478 | break; |
ebac4655 JA |
479 | } |
480 | ||
97601024 JA |
481 | if (!bytes_done) |
482 | continue; | |
483 | ||
ebac4655 JA |
484 | /* |
485 | * the rate is batched for now, it should work for batches | |
486 | * of completions except the very first one which may look | |
487 | * a little bursty | |
488 | */ | |
97601024 | 489 | usec = utime_since(&s, &comp_time); |
ebac4655 | 490 | |
413dd459 | 491 | rate_throttle(td, usec, bytes_done); |
ebac4655 | 492 | |
97601024 | 493 | if (check_min_rate(td, &comp_time)) { |
98aa62d8 | 494 | if (exitall_on_terminate) |
390c40e2 | 495 | terminate_threads(td->groupid); |
e1161c32 | 496 | td_verror(td, ENODATA, "check_min_rate"); |
ebac4655 JA |
497 | break; |
498 | } | |
499 | ||
9c1f7434 JA |
500 | if (td->thinktime) { |
501 | unsigned long long b; | |
502 | ||
503 | b = td->io_blocks[0] + td->io_blocks[1]; | |
48097d5c JA |
504 | if (!(b % td->thinktime_blocks)) { |
505 | int left; | |
506 | ||
507 | if (td->thinktime_spin) | |
508 | __usec_sleep(td->thinktime_spin); | |
509 | ||
510 | left = td->thinktime - td->thinktime_spin; | |
511 | if (left) | |
512 | usec_sleep(td, left); | |
513 | } | |
9c1f7434 | 514 | } |
ebac4655 JA |
515 | } |
516 | ||
4d2413c6 | 517 | if (!td->error) { |
3d7c391d JA |
518 | struct fio_file *f; |
519 | ||
c01c0395 JA |
520 | i = td->cur_depth; |
521 | if (i) | |
522 | ret = io_u_queued_complete(td, i); | |
ebac4655 | 523 | |
84585003 JA |
524 | if (should_fsync(td) && td->end_fsync) { |
525 | td_set_runstate(td, TD_FSYNCING); | |
3d7b485f JA |
526 | |
527 | for_each_file(td, f, i) { | |
528 | if (!(f->flags & FIO_FILE_OPEN)) | |
529 | continue; | |
858a3d47 | 530 | fio_io_sync(td, f); |
3d7b485f | 531 | } |
84585003 | 532 | } |
c01c0395 JA |
533 | } else |
534 | cleanup_pending_aio(td); | |
ebac4655 JA |
535 | } |
536 | ||
ebac4655 JA |
537 | static void cleanup_io_u(struct thread_data *td) |
538 | { | |
539 | struct list_head *entry, *n; | |
540 | struct io_u *io_u; | |
541 | ||
542 | list_for_each_safe(entry, n, &td->io_u_freelist) { | |
543 | io_u = list_entry(entry, struct io_u, list); | |
544 | ||
545 | list_del(&io_u->list); | |
546 | free(io_u); | |
547 | } | |
548 | ||
2f9ade3c | 549 | free_io_mem(td); |
ebac4655 JA |
550 | } |
551 | ||
6b9cea23 JA |
552 | /* |
553 | * "randomly" fill the buffer contents | |
554 | */ | |
66eeb296 | 555 | static void fill_rand_buf(struct io_u *io_u, int max_bs) |
6b9cea23 | 556 | { |
66eeb296 | 557 | int *ptr = io_u->buf; |
6b9cea23 JA |
558 | |
559 | while ((void *) ptr - io_u->buf < max_bs) { | |
560 | *ptr = rand() * 0x9e370001; | |
561 | ptr++; | |
562 | } | |
563 | } | |
564 | ||
ebac4655 JA |
565 | static int init_io_u(struct thread_data *td) |
566 | { | |
567 | struct io_u *io_u; | |
a00735e6 | 568 | unsigned int max_bs; |
ebac4655 JA |
569 | int i, max_units; |
570 | char *p; | |
571 | ||
2866c82d | 572 | if (td->io_ops->flags & FIO_SYNCIO) |
ebac4655 JA |
573 | max_units = 1; |
574 | else | |
575 | max_units = td->iodepth; | |
576 | ||
a00735e6 | 577 | max_bs = max(td->max_bs[DDIR_READ], td->max_bs[DDIR_WRITE]); |
74b025b0 JA |
578 | td->orig_buffer_size = max_bs * max_units; |
579 | ||
d0bdaf49 | 580 | if (td->mem_type == MEM_SHMHUGE || td->mem_type == MEM_MMAPHUGE) |
56bb17f2 | 581 | td->orig_buffer_size = (td->orig_buffer_size + td->hugepage_size - 1) & ~(td->hugepage_size - 1); |
74b025b0 | 582 | else |
29d610e1 | 583 | td->orig_buffer_size += page_mask; |
ebac4655 | 584 | |
2f9ade3c JA |
585 | if (allocate_io_mem(td)) |
586 | return 1; | |
ebac4655 | 587 | |
ebac4655 JA |
588 | p = ALIGN(td->orig_buffer); |
589 | for (i = 0; i < max_units; i++) { | |
590 | io_u = malloc(sizeof(*io_u)); | |
591 | memset(io_u, 0, sizeof(*io_u)); | |
592 | INIT_LIST_HEAD(&io_u->list); | |
593 | ||
a00735e6 | 594 | io_u->buf = p + max_bs * i; |
6b9cea23 | 595 | if (td_write(td) || td_rw(td)) |
a00735e6 | 596 | fill_rand_buf(io_u, max_bs); |
6b9cea23 | 597 | |
b1ff3403 | 598 | io_u->index = i; |
0c6e7517 | 599 | io_u->flags = IO_U_F_FREE; |
ebac4655 JA |
600 | list_add(&io_u->list, &td->io_u_freelist); |
601 | } | |
602 | ||
433afcb4 JA |
603 | io_u_init_timeout(); |
604 | ||
ebac4655 JA |
605 | return 0; |
606 | } | |
607 | ||
da86774e JA |
608 | static int switch_ioscheduler(struct thread_data *td) |
609 | { | |
610 | char tmp[256], tmp2[128]; | |
611 | FILE *f; | |
612 | int ret; | |
613 | ||
ba0fbe10 | 614 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
615 | return 0; |
616 | ||
da86774e JA |
617 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
618 | ||
619 | f = fopen(tmp, "r+"); | |
620 | if (!f) { | |
e1161c32 | 621 | td_verror(td, errno, "fopen"); |
da86774e JA |
622 | return 1; |
623 | } | |
624 | ||
625 | /* | |
626 | * Set io scheduler. | |
627 | */ | |
628 | ret = fwrite(td->ioscheduler, strlen(td->ioscheduler), 1, f); | |
629 | if (ferror(f) || ret != 1) { | |
e1161c32 | 630 | td_verror(td, errno, "fwrite"); |
da86774e JA |
631 | fclose(f); |
632 | return 1; | |
633 | } | |
634 | ||
635 | rewind(f); | |
636 | ||
637 | /* | |
638 | * Read back and check that the selected scheduler is now the default. | |
639 | */ | |
640 | ret = fread(tmp, 1, sizeof(tmp), f); | |
641 | if (ferror(f) || ret < 0) { | |
e1161c32 | 642 | td_verror(td, errno, "fread"); |
da86774e JA |
643 | fclose(f); |
644 | return 1; | |
645 | } | |
646 | ||
647 | sprintf(tmp2, "[%s]", td->ioscheduler); | |
648 | if (!strstr(tmp, tmp2)) { | |
3b70d7e5 | 649 | log_err("fio: io scheduler %s not found\n", td->ioscheduler); |
e1161c32 | 650 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
651 | fclose(f); |
652 | return 1; | |
653 | } | |
654 | ||
655 | fclose(f); | |
656 | return 0; | |
657 | } | |
658 | ||
a978ba68 | 659 | static int clear_io_state(struct thread_data *td) |
ebac4655 | 660 | { |
53cdc686 | 661 | struct fio_file *f; |
af52b345 JA |
662 | unsigned int i; |
663 | int ret; | |
ebac4655 | 664 | |
756867bd | 665 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
ebac4655 | 666 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
20dc95c4 | 667 | td->zone_bytes = 0; |
d7d3b49b | 668 | td->rate_bytes = 0; |
ebac4655 | 669 | |
c1324df1 JA |
670 | td->last_was_sync = 0; |
671 | ||
a978ba68 JA |
672 | for_each_file(td, f, i) |
673 | td_io_close_file(td, f); | |
53cdc686 | 674 | |
a978ba68 JA |
675 | ret = 0; |
676 | for_each_file(td, f, i) { | |
677 | ret = td_io_open_file(td, f); | |
678 | if (ret) | |
679 | break; | |
53cdc686 | 680 | } |
a978ba68 JA |
681 | |
682 | return ret; | |
ebac4655 JA |
683 | } |
684 | ||
906c8d75 JA |
685 | /* |
686 | * Entry point for the thread based jobs. The process based jobs end up | |
687 | * here as well, after a little setup. | |
688 | */ | |
ebac4655 JA |
689 | static void *thread_main(void *data) |
690 | { | |
69008999 | 691 | unsigned long long runtime[2]; |
ebac4655 | 692 | struct thread_data *td = data; |
a978ba68 | 693 | int clear_state; |
ebac4655 JA |
694 | |
695 | if (!td->use_thread) | |
696 | setsid(); | |
697 | ||
698 | td->pid = getpid(); | |
699 | ||
aea47d44 JA |
700 | INIT_LIST_HEAD(&td->io_u_freelist); |
701 | INIT_LIST_HEAD(&td->io_u_busylist); | |
755200a3 | 702 | INIT_LIST_HEAD(&td->io_u_requeues); |
aea47d44 JA |
703 | INIT_LIST_HEAD(&td->io_hist_list); |
704 | INIT_LIST_HEAD(&td->io_log_list); | |
705 | ||
ebac4655 | 706 | if (init_io_u(td)) |
bda4fd9e | 707 | goto err_sem; |
ebac4655 JA |
708 | |
709 | if (fio_setaffinity(td) == -1) { | |
e1161c32 | 710 | td_verror(td, errno, "cpu_set_affinity"); |
bda4fd9e | 711 | goto err_sem; |
ebac4655 JA |
712 | } |
713 | ||
aea47d44 | 714 | if (init_iolog(td)) |
bda4fd9e | 715 | goto err_sem; |
aea47d44 | 716 | |
ebac4655 JA |
717 | if (td->ioprio) { |
718 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { | |
e1161c32 | 719 | td_verror(td, errno, "ioprio_set"); |
bda4fd9e | 720 | goto err_sem; |
ebac4655 JA |
721 | } |
722 | } | |
723 | ||
1056eaad | 724 | if (nice(td->nice) == -1) { |
e1161c32 | 725 | td_verror(td, errno, "nice"); |
bda4fd9e | 726 | goto err_sem; |
b6f4d880 JA |
727 | } |
728 | ||
75154845 | 729 | if (init_random_state(td)) |
bda4fd9e | 730 | goto err_sem; |
75154845 | 731 | |
56f9498d | 732 | if (td->ioscheduler && switch_ioscheduler(td)) |
bda4fd9e | 733 | goto err_sem; |
da86774e | 734 | |
75154845 | 735 | td_set_runstate(td, TD_INITIALIZED); |
07739b57 JA |
736 | fio_sem_up(startup_sem); |
737 | fio_sem_down(td->mutex); | |
ebac4655 | 738 | |
37f56873 JA |
739 | /* |
740 | * the ->mutex semaphore is now no longer used, close it to avoid | |
741 | * eating a file descriptor | |
742 | */ | |
743 | fio_sem_remove(td->mutex); | |
744 | ||
53cdc686 | 745 | if (!td->create_serialize && setup_files(td)) |
ebac4655 JA |
746 | goto err; |
747 | ||
7d6c5283 JA |
748 | if (td_io_init(td)) |
749 | goto err; | |
750 | ||
b5af8293 JA |
751 | if (open_files(td)) |
752 | goto err; | |
753 | ||
69cfd7e0 JA |
754 | if (td->exec_prerun) { |
755 | if (system(td->exec_prerun) < 0) | |
756 | goto err; | |
757 | } | |
4e0ba8af | 758 | |
69008999 | 759 | fio_gettime(&td->epoch, NULL); |
433afcb4 | 760 | memcpy(&td->timeout_end, &td->epoch, sizeof(td->epoch)); |
756867bd | 761 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
69008999 JA |
762 | |
763 | runtime[0] = runtime[1] = 0; | |
a978ba68 | 764 | clear_state = 0; |
ebac4655 | 765 | while (td->loops--) { |
02bcaa8c | 766 | fio_gettime(&td->start, NULL); |
756867bd | 767 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
ebac4655 JA |
768 | |
769 | if (td->ratemin) | |
756867bd | 770 | memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate)); |
ebac4655 | 771 | |
a978ba68 JA |
772 | if (clear_state && clear_io_state(td)) |
773 | break; | |
774 | ||
ebac4655 JA |
775 | prune_io_piece_log(td); |
776 | ||
ba0fbe10 | 777 | do_io(td); |
ebac4655 | 778 | |
a978ba68 JA |
779 | clear_state = 1; |
780 | ||
413dd459 JA |
781 | if (td_read(td) && td->io_bytes[DDIR_READ]) |
782 | runtime[DDIR_READ] += utime_since_now(&td->start); | |
783 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) | |
784 | runtime[DDIR_WRITE] += utime_since_now(&td->start); | |
785 | ||
ebac4655 JA |
786 | if (td->error || td->terminate) |
787 | break; | |
788 | ||
789 | if (td->verify == VERIFY_NONE) | |
790 | continue; | |
791 | ||
a978ba68 JA |
792 | if (clear_io_state(td)) |
793 | break; | |
794 | ||
02bcaa8c | 795 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
796 | |
797 | do_verify(td); | |
798 | ||
69008999 | 799 | runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
800 | |
801 | if (td->error || td->terminate) | |
802 | break; | |
803 | } | |
804 | ||
36dff966 | 805 | update_rusage_stat(td); |
756867bd JA |
806 | td->ts.runtime[0] = runtime[0] / 1000; |
807 | td->ts.runtime[1] = runtime[1] / 1000; | |
808 | td->ts.total_run_time = mtime_since_now(&td->epoch); | |
809 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
810 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
811 | ||
812 | if (td->ts.bw_log) | |
813 | finish_log(td, td->ts.bw_log, "bw"); | |
814 | if (td->ts.slat_log) | |
815 | finish_log(td, td->ts.slat_log, "slat"); | |
816 | if (td->ts.clat_log) | |
817 | finish_log(td, td->ts.clat_log, "clat"); | |
076efc7c | 818 | if (td->write_iolog_file) |
843a7413 | 819 | write_iolog_close(td); |
69cfd7e0 JA |
820 | if (td->exec_postrun) { |
821 | if (system(td->exec_postrun) < 0) | |
822 | log_err("fio: postrun %s failed\n", td->exec_postrun); | |
823 | } | |
ebac4655 JA |
824 | |
825 | if (exitall_on_terminate) | |
390c40e2 | 826 | terminate_threads(td->groupid); |
ebac4655 JA |
827 | |
828 | err: | |
5bf13a5a JA |
829 | if (td->error) |
830 | printf("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
53cdc686 | 831 | close_files(td); |
2866c82d | 832 | close_ioengine(td); |
ebac4655 | 833 | cleanup_io_u(td); |
ebac4655 | 834 | td_set_runstate(td, TD_EXITED); |
43d76807 | 835 | return (void *) (unsigned long) td->error; |
bda4fd9e JA |
836 | err_sem: |
837 | fio_sem_up(startup_sem); | |
838 | goto err; | |
ebac4655 JA |
839 | } |
840 | ||
906c8d75 JA |
841 | /* |
842 | * We cannot pass the td data into a forked process, so attach the td and | |
843 | * pass it to the thread worker. | |
844 | */ | |
a6418147 | 845 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
846 | { |
847 | struct thread_data *td; | |
a6418147 | 848 | void *data, *ret; |
ebac4655 JA |
849 | |
850 | data = shmat(shmid, NULL, 0); | |
851 | if (data == (void *) -1) { | |
a6418147 JA |
852 | int __err = errno; |
853 | ||
ebac4655 | 854 | perror("shmat"); |
a6418147 | 855 | return __err; |
ebac4655 JA |
856 | } |
857 | ||
858 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 859 | ret = thread_main(td); |
ebac4655 | 860 | shmdt(data); |
43d76807 | 861 | return (int) (unsigned long) ret; |
ebac4655 JA |
862 | } |
863 | ||
906c8d75 JA |
864 | /* |
865 | * Run over the job map and reap the threads that have exited, if any. | |
866 | */ | |
ebac4655 JA |
867 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
868 | { | |
34572e28 | 869 | struct thread_data *td; |
fab6aa71 | 870 | int i, cputhreads, pending, status, ret; |
ebac4655 JA |
871 | |
872 | /* | |
873 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
874 | */ | |
4d2413c6 | 875 | pending = cputhreads = 0; |
34572e28 | 876 | for_each_td(td, i) { |
3707f45b | 877 | int flags = 0; |
a2f77c9f | 878 | |
84585003 JA |
879 | /* |
880 | * ->io_ops is NULL for a thread that has closed its | |
881 | * io engine | |
882 | */ | |
ba0fbe10 | 883 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 JA |
884 | cputhreads++; |
885 | ||
a2f77c9f JA |
886 | if (!td->pid || td->runstate == TD_REAPED) |
887 | continue; | |
3707f45b JA |
888 | if (td->use_thread) { |
889 | if (td->runstate == TD_EXITED) { | |
890 | td_set_runstate(td, TD_REAPED); | |
891 | goto reaped; | |
892 | } | |
893 | continue; | |
894 | } | |
a2f77c9f JA |
895 | |
896 | flags = WNOHANG; | |
897 | if (td->runstate == TD_EXITED) | |
898 | flags = 0; | |
899 | ||
900 | /* | |
901 | * check if someone quit or got killed in an unusual way | |
902 | */ | |
903 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 904 | if (ret < 0) { |
a2f77c9f JA |
905 | if (errno == ECHILD) { |
906 | log_err("fio: pid=%d disappeared %d\n", td->pid, td->runstate); | |
907 | td_set_runstate(td, TD_REAPED); | |
908 | goto reaped; | |
909 | } | |
910 | perror("waitpid"); | |
911 | } else if (ret == td->pid) { | |
912 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
913 | int sig = WTERMSIG(status); |
914 | ||
d9244941 JA |
915 | if (sig != SIGQUIT) |
916 | log_err("fio: pid=%d, got signal=%d\n", td->pid, sig); | |
fab6aa71 JA |
917 | td_set_runstate(td, TD_REAPED); |
918 | goto reaped; | |
919 | } | |
a2f77c9f JA |
920 | if (WIFEXITED(status)) { |
921 | if (WEXITSTATUS(status) && !td->error) | |
922 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 923 | |
a2f77c9f JA |
924 | td_set_runstate(td, TD_REAPED); |
925 | goto reaped; | |
a6418147 JA |
926 | } |
927 | } | |
ebac4655 | 928 | |
a2f77c9f JA |
929 | /* |
930 | * thread is not dead, continue | |
931 | */ | |
932 | continue; | |
fab6aa71 | 933 | reaped: |
3707f45b JA |
934 | if (td->use_thread) { |
935 | long ret; | |
936 | ||
937 | if (pthread_join(td->thread, (void *) &ret)) | |
938 | perror("pthread_join"); | |
939 | } | |
940 | ||
ebac4655 JA |
941 | (*nr_running)--; |
942 | (*m_rate) -= td->ratemin; | |
943 | (*t_rate) -= td->rate; | |
a2f77c9f JA |
944 | |
945 | if (td->error) | |
946 | exit_value++; | |
ebac4655 | 947 | } |
b990b5c0 | 948 | |
4d2413c6 | 949 | if (*nr_running == cputhreads && !pending) |
390c40e2 | 950 | terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
951 | } |
952 | ||
906c8d75 JA |
953 | /* |
954 | * Main function for kicking off and reaping jobs, as needed. | |
955 | */ | |
ebac4655 JA |
956 | static void run_threads(void) |
957 | { | |
ebac4655 JA |
958 | struct thread_data *td; |
959 | unsigned long spent; | |
960 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 961 | |
2f9ade3c JA |
962 | if (fio_pin_memory()) |
963 | return; | |
ebac4655 | 964 | |
c6ae0a5b | 965 | if (!terse_output) { |
9cedf167 JA |
966 | printf("Starting "); |
967 | if (nr_thread) | |
968 | printf("%d thread%s", nr_thread, nr_thread > 1 ? "s" : ""); | |
969 | if (nr_process) { | |
970 | if (nr_thread) | |
971 | printf(" and "); | |
972 | printf("%d process%s", nr_process, nr_process > 1 ? "es" : ""); | |
973 | } | |
974 | printf("\n"); | |
c6ae0a5b JA |
975 | fflush(stdout); |
976 | } | |
c04f7ec3 | 977 | |
4efa970e JA |
978 | signal(SIGINT, sig_handler); |
979 | signal(SIGALRM, sig_handler); | |
980 | ||
ebac4655 JA |
981 | todo = thread_number; |
982 | nr_running = 0; | |
983 | nr_started = 0; | |
984 | m_rate = t_rate = 0; | |
985 | ||
34572e28 | 986 | for_each_td(td, i) { |
263e529f | 987 | print_status_init(td->thread_number - 1); |
ebac4655 | 988 | |
380cf265 JA |
989 | if (!td->create_serialize) { |
990 | init_disk_util(td); | |
ebac4655 | 991 | continue; |
380cf265 | 992 | } |
ebac4655 JA |
993 | |
994 | /* | |
995 | * do file setup here so it happens sequentially, | |
996 | * we don't want X number of threads getting their | |
997 | * client data interspersed on disk | |
998 | */ | |
53cdc686 | 999 | if (setup_files(td)) { |
5bf13a5a JA |
1000 | exit_value++; |
1001 | if (td->error) | |
1002 | log_err("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); | |
ebac4655 JA |
1003 | td_set_runstate(td, TD_REAPED); |
1004 | todo--; | |
1005 | } | |
380cf265 JA |
1006 | |
1007 | init_disk_util(td); | |
ebac4655 JA |
1008 | } |
1009 | ||
a2f77c9f JA |
1010 | set_genesis_time(); |
1011 | ||
ebac4655 | 1012 | while (todo) { |
75154845 JA |
1013 | struct thread_data *map[MAX_JOBS]; |
1014 | struct timeval this_start; | |
1015 | int this_jobs = 0, left; | |
1016 | ||
ebac4655 JA |
1017 | /* |
1018 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1019 | */ | |
34572e28 | 1020 | for_each_td(td, i) { |
ebac4655 JA |
1021 | if (td->runstate != TD_NOT_CREATED) |
1022 | continue; | |
1023 | ||
1024 | /* | |
1025 | * never got a chance to start, killed by other | |
1026 | * thread for some reason | |
1027 | */ | |
1028 | if (td->terminate) { | |
1029 | todo--; | |
1030 | continue; | |
1031 | } | |
1032 | ||
1033 | if (td->start_delay) { | |
263e529f | 1034 | spent = mtime_since_genesis(); |
ebac4655 JA |
1035 | |
1036 | if (td->start_delay * 1000 > spent) | |
1037 | continue; | |
1038 | } | |
1039 | ||
1040 | if (td->stonewall && (nr_started || nr_running)) | |
1041 | break; | |
1042 | ||
75154845 JA |
1043 | /* |
1044 | * Set state to created. Thread will transition | |
1045 | * to TD_INITIALIZED when it's done setting up. | |
1046 | */ | |
ebac4655 | 1047 | td_set_runstate(td, TD_CREATED); |
75154845 | 1048 | map[this_jobs++] = td; |
ebac4655 JA |
1049 | nr_started++; |
1050 | ||
1051 | if (td->use_thread) { | |
1052 | if (pthread_create(&td->thread, NULL, thread_main, td)) { | |
1053 | perror("thread_create"); | |
1054 | nr_started--; | |
c8bb6faf | 1055 | break; |
ebac4655 JA |
1056 | } |
1057 | } else { | |
07739b57 | 1058 | if (!fork()) { |
a6418147 JA |
1059 | int ret = fork_main(shm_id, i); |
1060 | ||
1061 | exit(ret); | |
ebac4655 JA |
1062 | } |
1063 | } | |
07739b57 | 1064 | fio_sem_down(startup_sem); |
ebac4655 JA |
1065 | } |
1066 | ||
1067 | /* | |
75154845 JA |
1068 | * Wait for the started threads to transition to |
1069 | * TD_INITIALIZED. | |
ebac4655 | 1070 | */ |
02bcaa8c | 1071 | fio_gettime(&this_start, NULL); |
75154845 | 1072 | left = this_jobs; |
6ce15a32 | 1073 | while (left && !fio_abort) { |
75154845 JA |
1074 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1075 | break; | |
1076 | ||
1077 | usleep(100000); | |
1078 | ||
1079 | for (i = 0; i < this_jobs; i++) { | |
1080 | td = map[i]; | |
1081 | if (!td) | |
1082 | continue; | |
b6f4d880 | 1083 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1084 | map[i] = NULL; |
1085 | left--; | |
b6f4d880 JA |
1086 | } else if (td->runstate >= TD_EXITED) { |
1087 | map[i] = NULL; | |
1088 | left--; | |
1089 | todo--; | |
1090 | nr_running++; /* work-around... */ | |
75154845 JA |
1091 | } |
1092 | } | |
1093 | } | |
1094 | ||
1095 | if (left) { | |
3b70d7e5 | 1096 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1097 | for (i = 0; i < this_jobs; i++) { |
1098 | td = map[i]; | |
1099 | if (!td) | |
1100 | continue; | |
1101 | kill(td->pid, SIGTERM); | |
1102 | } | |
1103 | break; | |
1104 | } | |
1105 | ||
1106 | /* | |
b6f4d880 | 1107 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1108 | */ |
34572e28 | 1109 | for_each_td(td, i) { |
75154845 | 1110 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1111 | continue; |
1112 | ||
1113 | td_set_runstate(td, TD_RUNNING); | |
1114 | nr_running++; | |
1115 | nr_started--; | |
1116 | m_rate += td->ratemin; | |
1117 | t_rate += td->rate; | |
75154845 | 1118 | todo--; |
07739b57 | 1119 | fio_sem_up(td->mutex); |
ebac4655 JA |
1120 | } |
1121 | ||
1122 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1123 | ||
1124 | if (todo) | |
1125 | usleep(100000); | |
1126 | } | |
1127 | ||
1128 | while (nr_running) { | |
1129 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1130 | usleep(10000); | |
1131 | } | |
1132 | ||
1133 | update_io_ticks(); | |
2f9ade3c | 1134 | fio_unpin_memory(); |
ebac4655 JA |
1135 | } |
1136 | ||
ebac4655 JA |
1137 | int main(int argc, char *argv[]) |
1138 | { | |
29d610e1 JA |
1139 | long ps; |
1140 | ||
dbe1125e JA |
1141 | /* |
1142 | * We need locale for number printing, if it isn't set then just | |
1143 | * go with the US format. | |
1144 | */ | |
1145 | if (!getenv("LC_NUMERIC")) | |
1146 | setlocale(LC_NUMERIC, "en_US"); | |
1147 | ||
ebac4655 JA |
1148 | if (parse_options(argc, argv)) |
1149 | return 1; | |
1150 | ||
1151 | if (!thread_number) { | |
3b70d7e5 | 1152 | log_err("Nothing to do\n"); |
ebac4655 JA |
1153 | return 1; |
1154 | } | |
1155 | ||
29d610e1 JA |
1156 | ps = sysconf(_SC_PAGESIZE); |
1157 | if (ps < 0) { | |
1158 | log_err("Failed to get page size\n"); | |
1159 | return 1; | |
1160 | } | |
1161 | ||
cfc99db7 | 1162 | page_size = ps; |
29d610e1 JA |
1163 | page_mask = ps - 1; |
1164 | ||
bb3884d8 JA |
1165 | if (write_bw_log) { |
1166 | setup_log(&agg_io_log[DDIR_READ]); | |
1167 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1168 | } | |
1169 | ||
07739b57 JA |
1170 | startup_sem = fio_sem_init(0); |
1171 | ||
a2f77c9f JA |
1172 | set_genesis_time(); |
1173 | ||
ebac4655 JA |
1174 | disk_util_timer_arm(); |
1175 | ||
1176 | run_threads(); | |
6ce15a32 | 1177 | |
bb3884d8 | 1178 | if (!fio_abort) { |
6ce15a32 | 1179 | show_run_stats(); |
bb3884d8 JA |
1180 | if (write_bw_log) { |
1181 | __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log"); | |
1182 | __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log"); | |
1183 | } | |
1184 | } | |
ebac4655 | 1185 | |
07739b57 | 1186 | fio_sem_remove(startup_sem); |
437c9b71 | 1187 | return exit_value; |
ebac4655 | 1188 | } |