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> | |
9b836561 | 27 | #include <limits.h> |
ebac4655 JA |
28 | #include <signal.h> |
29 | #include <time.h> | |
dbe1125e | 30 | #include <locale.h> |
36167d82 | 31 | #include <assert.h> |
a5b01f1b | 32 | #include <time.h> |
ebac4655 JA |
33 | #include <sys/stat.h> |
34 | #include <sys/wait.h> | |
35 | #include <sys/ipc.h> | |
36 | #include <sys/shm.h> | |
ebac4655 JA |
37 | #include <sys/mman.h> |
38 | ||
39 | #include "fio.h" | |
210f43b3 | 40 | #include "hash.h" |
2e5cdb11 | 41 | #include "smalloc.h" |
4f5af7b2 | 42 | #include "verify.h" |
a917a8b3 | 43 | #include "trim.h" |
7c9b1bce | 44 | #include "diskutil.h" |
a696fa2a | 45 | #include "cgroup.h" |
07b3232d | 46 | #include "profile.h" |
d54a144d | 47 | #include "lib/rand.h" |
91aea6ec | 48 | #include "memalign.h" |
009b1be4 | 49 | #include "server.h" |
ebac4655 | 50 | |
cfc99db7 JA |
51 | unsigned long page_mask; |
52 | unsigned long page_size; | |
d529ee19 JA |
53 | |
54 | #define PAGE_ALIGN(buf) \ | |
29d610e1 | 55 | (char *) (((unsigned long) (buf) + page_mask) & ~page_mask) |
ebac4655 JA |
56 | |
57 | int groupid = 0; | |
58 | int thread_number = 0; | |
9cedf167 JA |
59 | int nr_process = 0; |
60 | int nr_thread = 0; | |
ebac4655 | 61 | int shm_id = 0; |
53cdc686 | 62 | int temp_stall_ts; |
d3eeeabc | 63 | unsigned long done_secs = 0; |
ebac4655 | 64 | |
cdd18ad8 | 65 | static struct fio_mutex *startup_mutex; |
d2bbb8d9 | 66 | static struct fio_mutex *writeout_mutex; |
6ce15a32 | 67 | static volatile int fio_abort; |
437c9b71 | 68 | static int exit_value; |
be4ecfdf | 69 | static pthread_t gtod_thread; |
7985701b | 70 | static pthread_t disk_util_thread; |
dae5341c | 71 | static struct flist_head *cgroup_list; |
6adb38a1 | 72 | static char *cgroup_mnt; |
ebac4655 | 73 | |
d3cc4ebf JA |
74 | unsigned long arch_flags = 0; |
75 | ||
bb3884d8 JA |
76 | struct io_log *agg_io_log[2]; |
77 | ||
75154845 | 78 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 | 79 | |
b29ee5b3 | 80 | void td_set_runstate(struct thread_data *td, int runstate) |
6ce15a32 | 81 | { |
d8fab1b6 JA |
82 | if (td->runstate == runstate) |
83 | return; | |
84 | ||
5921e80c JA |
85 | dprint(FD_PROCESS, "pid=%d: runstate %d -> %d\n", (int) td->pid, |
86 | td->runstate, runstate); | |
6ce15a32 JA |
87 | td->runstate = runstate; |
88 | } | |
89 | ||
cc0df00a | 90 | void fio_terminate_threads(int group_id) |
ebac4655 | 91 | { |
34572e28 | 92 | struct thread_data *td; |
ebac4655 JA |
93 | int i; |
94 | ||
6f88bcb0 JA |
95 | dprint(FD_PROCESS, "terminate group_id=%d\n", group_id); |
96 | ||
34572e28 | 97 | for_each_td(td, i) { |
ebac4655 | 98 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
6f88bcb0 | 99 | dprint(FD_PROCESS, "setting terminate on %s/%d\n", |
5921e80c | 100 | td->o.name, (int) td->pid); |
ad830ed7 JA |
101 | td->terminate = 1; |
102 | td->o.start_delay = 0; | |
103 | ||
7a93ab19 JA |
104 | /* |
105 | * if the thread is running, just let it exit | |
106 | */ | |
6aa27816 MC |
107 | if (!td->pid) |
108 | continue; | |
109 | else if (td->runstate < TD_RAMP) | |
03e20d68 | 110 | kill(td->pid, SIGTERM); |
f63f7f3b JA |
111 | else { |
112 | struct ioengine_ops *ops = td->io_ops; | |
113 | ||
03e20d68 BC |
114 | if (ops && (ops->flags & FIO_SIGTERM)) |
115 | kill(td->pid, SIGTERM); | |
f63f7f3b | 116 | } |
ebac4655 JA |
117 | } |
118 | } | |
119 | } | |
120 | ||
697a606c JA |
121 | static void sig_int(int sig) |
122 | { | |
123 | if (threads) { | |
4ceb30d4 | 124 | log_info("\nfio: terminating on signal %d\n", sig); |
009b1be4 | 125 | exit_backend = 1; |
5ec10eaa | 126 | fflush(stdout); |
deaa1af2 | 127 | exit_value = 128; |
cc0df00a | 128 | fio_terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
129 | } |
130 | } | |
131 | ||
7985701b | 132 | static void *disk_thread_main(void *data) |
a5b01f1b | 133 | { |
7985701b JA |
134 | fio_mutex_up(startup_mutex); |
135 | ||
136 | while (threads) { | |
137 | usleep(DISK_UTIL_MSEC * 1000); | |
9a793c2f JA |
138 | if (!threads) |
139 | break; | |
7985701b | 140 | update_io_ticks(); |
cf451d1e JA |
141 | |
142 | if (is_backend) | |
143 | fio_server_send_status(); | |
144 | else | |
145 | print_thread_status(); | |
7985701b JA |
146 | } |
147 | ||
148 | return NULL; | |
a5b01f1b JA |
149 | } |
150 | ||
7985701b | 151 | static int create_disk_util_thread(void) |
a5b01f1b | 152 | { |
7985701b | 153 | int ret; |
a5b01f1b | 154 | |
69204d6e | 155 | ret = pthread_create(&disk_util_thread, NULL, disk_thread_main, NULL); |
7985701b JA |
156 | if (ret) { |
157 | log_err("Can't create disk util thread: %s\n", strerror(ret)); | |
158 | return 1; | |
159 | } | |
a5b01f1b | 160 | |
7985701b JA |
161 | ret = pthread_detach(disk_util_thread); |
162 | if (ret) { | |
163 | log_err("Can't detatch disk util thread: %s\n", strerror(ret)); | |
164 | return 1; | |
165 | } | |
03e20d68 | 166 | |
7985701b JA |
167 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
168 | fio_mutex_down(startup_mutex); | |
169 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); | |
170 | return 0; | |
a5b01f1b JA |
171 | } |
172 | ||
697a606c JA |
173 | static void set_sig_handlers(void) |
174 | { | |
175 | struct sigaction act; | |
176 | ||
697a606c JA |
177 | memset(&act, 0, sizeof(act)); |
178 | act.sa_handler = sig_int; | |
179 | act.sa_flags = SA_RESTART; | |
180 | sigaction(SIGINT, &act, NULL); | |
de79c915 | 181 | |
5f8f9726 | 182 | memset(&act, 0, sizeof(act)); |
b20b6be4 | 183 | act.sa_handler = sig_int; |
5f8f9726 | 184 | act.sa_flags = SA_RESTART; |
03e20d68 | 185 | sigaction(SIGTERM, &act, NULL); |
cc0df00a JA |
186 | |
187 | if (is_backend) { | |
188 | memset(&act, 0, sizeof(act)); | |
189 | act.sa_handler = sig_int; | |
190 | act.sa_flags = SA_RESTART; | |
191 | sigaction(SIGPIPE, &act, NULL); | |
192 | } | |
697a606c JA |
193 | } |
194 | ||
906c8d75 JA |
195 | /* |
196 | * Check if we are above the minimum rate given. | |
197 | */ | |
581e7141 | 198 | static int __check_min_rate(struct thread_data *td, struct timeval *now, |
bd93e34b | 199 | enum fio_ddir ddir) |
ebac4655 | 200 | { |
0904200b | 201 | unsigned long long bytes = 0; |
4e991c23 | 202 | unsigned long iops = 0; |
ebac4655 JA |
203 | unsigned long spent; |
204 | unsigned long rate; | |
581e7141 JA |
205 | unsigned int ratemin = 0; |
206 | unsigned int rate_iops = 0; | |
207 | unsigned int rate_iops_min = 0; | |
ebac4655 | 208 | |
ff58fced JA |
209 | assert(ddir_rw(ddir)); |
210 | ||
d982d873 JA |
211 | if (!td->o.ratemin[ddir] && !td->o.rate_iops_min[ddir]) |
212 | return 0; | |
213 | ||
ebac4655 JA |
214 | /* |
215 | * allow a 2 second settle period in the beginning | |
216 | */ | |
217 | if (mtime_since(&td->start, now) < 2000) | |
218 | return 0; | |
219 | ||
c8eeb9df | 220 | iops += td->this_io_blocks[ddir]; |
581e7141 JA |
221 | bytes += td->this_io_bytes[ddir]; |
222 | ratemin += td->o.ratemin[ddir]; | |
223 | rate_iops += td->o.rate_iops[ddir]; | |
224 | rate_iops_min += td->o.rate_iops_min[ddir]; | |
0904200b | 225 | |
ebac4655 JA |
226 | /* |
227 | * if rate blocks is set, sample is running | |
228 | */ | |
581e7141 JA |
229 | if (td->rate_bytes[ddir] || td->rate_blocks[ddir]) { |
230 | spent = mtime_since(&td->lastrate[ddir], now); | |
2dc1bbeb | 231 | if (spent < td->o.ratecycle) |
ebac4655 JA |
232 | return 0; |
233 | ||
581e7141 | 234 | if (td->o.rate[ddir]) { |
4e991c23 JA |
235 | /* |
236 | * check bandwidth specified rate | |
237 | */ | |
581e7141 | 238 | if (bytes < td->rate_bytes[ddir]) { |
5ec10eaa | 239 | log_err("%s: min rate %u not met\n", td->o.name, |
581e7141 | 240 | ratemin); |
4e991c23 JA |
241 | return 1; |
242 | } else { | |
581e7141 JA |
243 | rate = ((bytes - td->rate_bytes[ddir]) * 1000) / spent; |
244 | if (rate < ratemin || | |
245 | bytes < td->rate_bytes[ddir]) { | |
5ec10eaa | 246 | log_err("%s: min rate %u not met, got" |
b22989b9 | 247 | " %luKB/sec\n", td->o.name, |
581e7141 | 248 | ratemin, rate); |
4e991c23 JA |
249 | return 1; |
250 | } | |
251 | } | |
413dd459 | 252 | } else { |
4e991c23 JA |
253 | /* |
254 | * checks iops specified rate | |
255 | */ | |
581e7141 | 256 | if (iops < rate_iops) { |
5ec10eaa | 257 | log_err("%s: min iops rate %u not met\n", |
581e7141 | 258 | td->o.name, rate_iops); |
413dd459 | 259 | return 1; |
4e991c23 | 260 | } else { |
581e7141 JA |
261 | rate = ((iops - td->rate_blocks[ddir]) * 1000) / spent; |
262 | if (rate < rate_iops_min || | |
263 | iops < td->rate_blocks[ddir]) { | |
5ec10eaa JA |
264 | log_err("%s: min iops rate %u not met," |
265 | " got %lu\n", td->o.name, | |
581e7141 | 266 | rate_iops_min, rate); |
4e991c23 | 267 | } |
413dd459 | 268 | } |
ebac4655 JA |
269 | } |
270 | } | |
271 | ||
581e7141 JA |
272 | td->rate_bytes[ddir] = bytes; |
273 | td->rate_blocks[ddir] = iops; | |
274 | memcpy(&td->lastrate[ddir], now, sizeof(*now)); | |
ebac4655 JA |
275 | return 0; |
276 | } | |
277 | ||
581e7141 JA |
278 | static int check_min_rate(struct thread_data *td, struct timeval *now, |
279 | unsigned long *bytes_done) | |
280 | { | |
281 | int ret = 0; | |
282 | ||
283 | if (bytes_done[0]) | |
284 | ret |= __check_min_rate(td, now, 0); | |
285 | if (bytes_done[1]) | |
286 | ret |= __check_min_rate(td, now, 1); | |
287 | ||
288 | return ret; | |
289 | } | |
290 | ||
ebac4655 JA |
291 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) |
292 | { | |
2dc1bbeb | 293 | if (!td->o.timeout) |
ebac4655 | 294 | return 0; |
2dc1bbeb | 295 | if (mtime_since(&td->epoch, t) >= td->o.timeout * 1000) |
ebac4655 JA |
296 | return 1; |
297 | ||
298 | return 0; | |
299 | } | |
300 | ||
906c8d75 JA |
301 | /* |
302 | * When job exits, we can cancel the in-flight IO if we are using async | |
303 | * io. Attempt to do so. | |
304 | */ | |
ebac4655 JA |
305 | static void cleanup_pending_aio(struct thread_data *td) |
306 | { | |
01743ee1 | 307 | struct flist_head *entry, *n; |
ebac4655 JA |
308 | struct io_u *io_u; |
309 | int r; | |
310 | ||
311 | /* | |
312 | * get immediately available events, if any | |
313 | */ | |
581e7141 | 314 | r = io_u_queued_complete(td, 0, NULL); |
b2fdda43 JA |
315 | if (r < 0) |
316 | return; | |
ebac4655 JA |
317 | |
318 | /* | |
319 | * now cancel remaining active events | |
320 | */ | |
2866c82d | 321 | if (td->io_ops->cancel) { |
01743ee1 JA |
322 | flist_for_each_safe(entry, n, &td->io_u_busylist) { |
323 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 324 | |
0c6e7517 JA |
325 | /* |
326 | * if the io_u isn't in flight, then that generally | |
327 | * means someone leaked an io_u. complain but fix | |
328 | * it up, so we don't stall here. | |
329 | */ | |
330 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { | |
331 | log_err("fio: non-busy IO on busy list\n"); | |
ebac4655 | 332 | put_io_u(td, io_u); |
0c6e7517 JA |
333 | } else { |
334 | r = td->io_ops->cancel(td, io_u); | |
335 | if (!r) | |
336 | put_io_u(td, io_u); | |
337 | } | |
ebac4655 JA |
338 | } |
339 | } | |
340 | ||
97601024 | 341 | if (td->cur_depth) |
581e7141 | 342 | r = io_u_queued_complete(td, td->cur_depth, NULL); |
ebac4655 JA |
343 | } |
344 | ||
858a3d47 JA |
345 | /* |
346 | * Helper to handle the final sync of a file. Works just like the normal | |
347 | * io path, just does everything sync. | |
348 | */ | |
349 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) | |
350 | { | |
351 | struct io_u *io_u = __get_io_u(td); | |
858a3d47 JA |
352 | int ret; |
353 | ||
354 | if (!io_u) | |
355 | return 1; | |
356 | ||
357 | io_u->ddir = DDIR_SYNC; | |
358 | io_u->file = f; | |
359 | ||
360 | if (td_io_prep(td, io_u)) { | |
361 | put_io_u(td, io_u); | |
362 | return 1; | |
363 | } | |
364 | ||
755200a3 | 365 | requeue: |
858a3d47 | 366 | ret = td_io_queue(td, io_u); |
36167d82 | 367 | if (ret < 0) { |
e1161c32 | 368 | td_verror(td, io_u->error, "td_io_queue"); |
858a3d47 | 369 | put_io_u(td, io_u); |
858a3d47 | 370 | return 1; |
36167d82 | 371 | } else if (ret == FIO_Q_QUEUED) { |
581e7141 | 372 | if (io_u_queued_complete(td, 1, NULL) < 0) |
36167d82 | 373 | return 1; |
36167d82 JA |
374 | } else if (ret == FIO_Q_COMPLETED) { |
375 | if (io_u->error) { | |
e1161c32 | 376 | td_verror(td, io_u->error, "td_io_queue"); |
36167d82 JA |
377 | return 1; |
378 | } | |
858a3d47 | 379 | |
581e7141 | 380 | if (io_u_sync_complete(td, io_u, NULL) < 0) |
b2fdda43 | 381 | return 1; |
755200a3 JA |
382 | } else if (ret == FIO_Q_BUSY) { |
383 | if (td_io_commit(td)) | |
384 | return 1; | |
385 | goto requeue; | |
858a3d47 JA |
386 | } |
387 | ||
388 | return 0; | |
389 | } | |
390 | ||
687c6a23 JA |
391 | static inline void __update_tv_cache(struct thread_data *td) |
392 | { | |
393 | fio_gettime(&td->tv_cache, NULL); | |
394 | } | |
395 | ||
993bf48b JA |
396 | static inline void update_tv_cache(struct thread_data *td) |
397 | { | |
398 | if ((++td->tv_cache_nr & td->tv_cache_mask) == td->tv_cache_mask) | |
687c6a23 | 399 | __update_tv_cache(td); |
993bf48b JA |
400 | } |
401 | ||
f2bba182 RR |
402 | static int break_on_this_error(struct thread_data *td, int *retptr) |
403 | { | |
404 | int ret = *retptr; | |
405 | ||
406 | if (ret < 0 || td->error) { | |
407 | int err; | |
408 | ||
1ec99eea JA |
409 | if (!td->o.continue_on_error) |
410 | return 1; | |
f2bba182 RR |
411 | |
412 | if (ret < 0) | |
413 | err = -ret; | |
414 | else | |
415 | err = td->error; | |
416 | ||
f2bba182 RR |
417 | if (td_non_fatal_error(err)) { |
418 | /* | |
419 | * Continue with the I/Os in case of | |
420 | * a non fatal error. | |
421 | */ | |
8a4f8a24 | 422 | update_error_count(td, err); |
f2bba182 RR |
423 | td_clear_error(td); |
424 | *retptr = 0; | |
425 | return 0; | |
8a4f8a24 RR |
426 | } else if (td->o.fill_device && err == ENOSPC) { |
427 | /* | |
428 | * We expect to hit this error if | |
429 | * fill_device option is set. | |
430 | */ | |
431 | td_clear_error(td); | |
432 | td->terminate = 1; | |
433 | return 1; | |
f2bba182 RR |
434 | } else { |
435 | /* | |
436 | * Stop the I/O in case of a fatal | |
437 | * error. | |
438 | */ | |
8a4f8a24 | 439 | update_error_count(td, err); |
f2bba182 RR |
440 | return 1; |
441 | } | |
442 | } | |
443 | ||
444 | return 0; | |
445 | } | |
446 | ||
906c8d75 | 447 | /* |
34403fb1 | 448 | * The main verify engine. Runs over the writes we previously submitted, |
906c8d75 JA |
449 | * reads the blocks back in, and checks the crc/md5 of the data. |
450 | */ | |
1e97cce9 | 451 | static void do_verify(struct thread_data *td) |
ebac4655 | 452 | { |
53cdc686 | 453 | struct fio_file *f; |
36167d82 | 454 | struct io_u *io_u; |
af52b345 JA |
455 | int ret, min_events; |
456 | unsigned int i; | |
e5b401d4 | 457 | |
008618a8 JA |
458 | dprint(FD_VERIFY, "starting loop\n"); |
459 | ||
e5b401d4 JA |
460 | /* |
461 | * sync io first and invalidate cache, to make sure we really | |
462 | * read from disk. | |
463 | */ | |
464 | for_each_file(td, f, i) { | |
d6aed795 | 465 | if (!fio_file_open(f)) |
3d7b485f | 466 | continue; |
b2fdda43 JA |
467 | if (fio_io_sync(td, f)) |
468 | break; | |
469 | if (file_invalidate_cache(td, f)) | |
470 | break; | |
e5b401d4 | 471 | } |
ebac4655 | 472 | |
b2fdda43 JA |
473 | if (td->error) |
474 | return; | |
475 | ||
ebac4655 JA |
476 | td_set_runstate(td, TD_VERIFYING); |
477 | ||
36167d82 JA |
478 | io_u = NULL; |
479 | while (!td->terminate) { | |
4950421a | 480 | int ret2, full; |
5451792e | 481 | |
993bf48b JA |
482 | update_tv_cache(td); |
483 | ||
484 | if (runtime_exceeded(td, &td->tv_cache)) { | |
687c6a23 JA |
485 | __update_tv_cache(td); |
486 | if (runtime_exceeded(td, &td->tv_cache)) { | |
487 | td->terminate = 1; | |
488 | break; | |
489 | } | |
069c2918 | 490 | } |
02bcaa8c | 491 | |
dcb4830d RR |
492 | io_u = __get_io_u(td); |
493 | if (!io_u) | |
494 | break; | |
495 | ||
069c2918 JA |
496 | if (get_next_verify(td, io_u)) { |
497 | put_io_u(td, io_u); | |
ebac4655 | 498 | break; |
069c2918 | 499 | } |
ebac4655 | 500 | |
069c2918 JA |
501 | if (td_io_prep(td, io_u)) { |
502 | put_io_u(td, io_u); | |
53cdc686 | 503 | break; |
069c2918 | 504 | } |
d7762cf8 | 505 | |
e8462bd8 JA |
506 | if (td->o.verify_async) |
507 | io_u->end_io = verify_io_u_async; | |
508 | else | |
509 | io_u->end_io = verify_io_u; | |
53cdc686 | 510 | |
11786802 | 511 | ret = td_io_queue(td, io_u); |
36167d82 JA |
512 | switch (ret) { |
513 | case FIO_Q_COMPLETED: | |
f2bba182 | 514 | if (io_u->error) { |
22819ec2 | 515 | ret = -io_u->error; |
f2bba182 RR |
516 | clear_io_u(td, io_u); |
517 | } else if (io_u->resid) { | |
36167d82 | 518 | int bytes = io_u->xfer_buflen - io_u->resid; |
ebac4655 | 519 | |
9e9d164e JA |
520 | /* |
521 | * zero read, fail | |
522 | */ | |
523 | if (!bytes) { | |
41d9f0fd | 524 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
525 | put_io_u(td, io_u); |
526 | break; | |
527 | } | |
8400d9b2 | 528 | |
36167d82 JA |
529 | io_u->xfer_buflen = io_u->resid; |
530 | io_u->xfer_buf += bytes; | |
8400d9b2 JA |
531 | io_u->offset += bytes; |
532 | ||
ff58fced JA |
533 | if (ddir_rw(io_u->ddir)) |
534 | td->ts.short_io_u[io_u->ddir]++; | |
30061b97 | 535 | |
2b13e716 | 536 | f = io_u->file; |
d460eb31 | 537 | if (io_u->offset == f->real_file_size) |
8400d9b2 JA |
538 | goto sync_done; |
539 | ||
11786802 JA |
540 | requeue_io_u(td, &io_u); |
541 | } else { | |
8400d9b2 | 542 | sync_done: |
581e7141 | 543 | ret = io_u_sync_complete(td, io_u, NULL); |
11786802 JA |
544 | if (ret < 0) |
545 | break; | |
36167d82 | 546 | } |
36167d82 JA |
547 | continue; |
548 | case FIO_Q_QUEUED: | |
549 | break; | |
755200a3 JA |
550 | case FIO_Q_BUSY: |
551 | requeue_io_u(td, &io_u); | |
5451792e JA |
552 | ret2 = td_io_commit(td); |
553 | if (ret2 < 0) | |
554 | ret = ret2; | |
755200a3 | 555 | break; |
36167d82 JA |
556 | default: |
557 | assert(ret < 0); | |
e1161c32 | 558 | td_verror(td, -ret, "td_io_queue"); |
ebac4655 JA |
559 | break; |
560 | } | |
561 | ||
f2bba182 | 562 | if (break_on_this_error(td, &ret)) |
3af6ef39 JA |
563 | break; |
564 | ||
ebac4655 | 565 | /* |
3af6ef39 | 566 | * if we can queue more, do so. but check if there are |
ccc02050 JA |
567 | * completed io_u's first. Note that we can get BUSY even |
568 | * without IO queued, if the system is resource starved. | |
ebac4655 | 569 | */ |
ccc02050 | 570 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); |
4950421a | 571 | if (full || !td->o.iodepth_batch_complete) { |
6a96276c RR |
572 | min_events = min(td->o.iodepth_batch_complete, |
573 | td->cur_depth); | |
1f84f1d9 | 574 | if (full && !min_events && td->o.iodepth_batch_complete != 0) |
838bc709 | 575 | min_events = 1; |
e916b390 | 576 | |
4950421a JA |
577 | do { |
578 | /* | |
579 | * Reap required number of io units, if any, | |
580 | * and do the verification on them through | |
581 | * the callback handler | |
582 | */ | |
581e7141 | 583 | if (io_u_queued_complete(td, min_events, NULL) < 0) { |
4950421a JA |
584 | ret = -1; |
585 | break; | |
586 | } | |
587 | } while (full && (td->cur_depth > td->o.iodepth_low)); | |
588 | } | |
589 | if (ret < 0) | |
ebac4655 | 590 | break; |
36167d82 | 591 | } |
ebac4655 | 592 | |
c01c0395 JA |
593 | if (!td->error) { |
594 | min_events = td->cur_depth; | |
595 | ||
596 | if (min_events) | |
581e7141 | 597 | ret = io_u_queued_complete(td, min_events, NULL); |
c01c0395 | 598 | } else |
ebac4655 JA |
599 | cleanup_pending_aio(td); |
600 | ||
601 | td_set_runstate(td, TD_RUNNING); | |
008618a8 JA |
602 | |
603 | dprint(FD_VERIFY, "exiting loop\n"); | |
ebac4655 JA |
604 | } |
605 | ||
32cd46a0 | 606 | /* |
906c8d75 | 607 | * Main IO worker function. It retrieves io_u's to process and queues |
32cd46a0 JA |
608 | * and reaps them, checking for rate and errors along the way. |
609 | */ | |
ebac4655 JA |
610 | static void do_io(struct thread_data *td) |
611 | { | |
af52b345 JA |
612 | unsigned int i; |
613 | int ret = 0; | |
ebac4655 | 614 | |
b29ee5b3 JA |
615 | if (in_ramp_time(td)) |
616 | td_set_runstate(td, TD_RAMP); | |
617 | else | |
618 | td_set_runstate(td, TD_RUNNING); | |
5853e5a8 | 619 | |
457bf399 | 620 | while ( (td->o.read_iolog_file && !flist_empty(&td->io_log_list)) || |
a917a8b3 | 621 | (!flist_empty(&td->trim_list)) || |
457bf399 | 622 | ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->o.size) ) { |
97601024 | 623 | struct timeval comp_time; |
581e7141 | 624 | unsigned long bytes_done[2] = { 0, 0 }; |
84585003 | 625 | int min_evts = 0; |
ebac4655 | 626 | struct io_u *io_u; |
4950421a | 627 | int ret2, full; |
ebac4655 JA |
628 | |
629 | if (td->terminate) | |
630 | break; | |
631 | ||
993bf48b | 632 | update_tv_cache(td); |
97601024 | 633 | |
993bf48b | 634 | if (runtime_exceeded(td, &td->tv_cache)) { |
687c6a23 JA |
635 | __update_tv_cache(td); |
636 | if (runtime_exceeded(td, &td->tv_cache)) { | |
637 | td->terminate = 1; | |
638 | break; | |
639 | } | |
97601024 | 640 | } |
36167d82 | 641 | |
dcb4830d RR |
642 | io_u = get_io_u(td); |
643 | if (!io_u) | |
644 | break; | |
645 | ||
b67740d3 JA |
646 | /* |
647 | * Add verification end_io handler, if asked to verify | |
648 | * a previously written file. | |
649 | */ | |
715d2b3e JA |
650 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_READ && |
651 | !td_rw(td)) { | |
e8462bd8 JA |
652 | if (td->o.verify_async) |
653 | io_u->end_io = verify_io_u_async; | |
654 | else | |
655 | io_u->end_io = verify_io_u; | |
d8fab1b6 | 656 | td_set_runstate(td, TD_VERIFYING); |
b29ee5b3 JA |
657 | } else if (in_ramp_time(td)) |
658 | td_set_runstate(td, TD_RAMP); | |
659 | else | |
d8fab1b6 | 660 | td_set_runstate(td, TD_RUNNING); |
b67740d3 | 661 | |
11786802 | 662 | ret = td_io_queue(td, io_u); |
36167d82 JA |
663 | switch (ret) { |
664 | case FIO_Q_COMPLETED: | |
f2bba182 | 665 | if (io_u->error) { |
5451792e | 666 | ret = -io_u->error; |
f2bba182 RR |
667 | clear_io_u(td, io_u); |
668 | } else if (io_u->resid) { | |
36167d82 | 669 | int bytes = io_u->xfer_buflen - io_u->resid; |
d460eb31 | 670 | struct fio_file *f = io_u->file; |
36167d82 | 671 | |
9e9d164e JA |
672 | /* |
673 | * zero read, fail | |
674 | */ | |
675 | if (!bytes) { | |
41d9f0fd | 676 | td_verror(td, EIO, "full resid"); |
9e9d164e JA |
677 | put_io_u(td, io_u); |
678 | break; | |
679 | } | |
680 | ||
cec6b55d | 681 | io_u->xfer_buflen = io_u->resid; |
36167d82 | 682 | io_u->xfer_buf += bytes; |
5a7c5680 JA |
683 | io_u->offset += bytes; |
684 | ||
ff58fced JA |
685 | if (ddir_rw(io_u->ddir)) |
686 | td->ts.short_io_u[io_u->ddir]++; | |
30061b97 | 687 | |
d460eb31 | 688 | if (io_u->offset == f->real_file_size) |
5a7c5680 JA |
689 | goto sync_done; |
690 | ||
11786802 JA |
691 | requeue_io_u(td, &io_u); |
692 | } else { | |
5a7c5680 | 693 | sync_done: |
581e7141 JA |
694 | if (__should_check_rate(td, 0) || |
695 | __should_check_rate(td, 1)) | |
993bf48b JA |
696 | fio_gettime(&comp_time, NULL); |
697 | ||
581e7141 JA |
698 | ret = io_u_sync_complete(td, io_u, bytes_done); |
699 | if (ret < 0) | |
700 | break; | |
cec6b55d | 701 | } |
36167d82 JA |
702 | break; |
703 | case FIO_Q_QUEUED: | |
7e77dd02 JA |
704 | /* |
705 | * if the engine doesn't have a commit hook, | |
706 | * the io_u is really queued. if it does have such | |
707 | * a hook, it has to call io_u_queued() itself. | |
708 | */ | |
709 | if (td->io_ops->commit == NULL) | |
710 | io_u_queued(td, io_u); | |
36167d82 | 711 | break; |
755200a3 JA |
712 | case FIO_Q_BUSY: |
713 | requeue_io_u(td, &io_u); | |
5451792e JA |
714 | ret2 = td_io_commit(td); |
715 | if (ret2 < 0) | |
716 | ret = ret2; | |
755200a3 | 717 | break; |
36167d82 JA |
718 | default: |
719 | assert(ret < 0); | |
720 | put_io_u(td, io_u); | |
721 | break; | |
ebac4655 JA |
722 | } |
723 | ||
f2bba182 | 724 | if (break_on_this_error(td, &ret)) |
36167d82 JA |
725 | break; |
726 | ||
97601024 | 727 | /* |
ccc02050 JA |
728 | * See if we need to complete some commands. Note that we |
729 | * can get BUSY even without IO queued, if the system is | |
730 | * resource starved. | |
97601024 | 731 | */ |
ccc02050 | 732 | full = queue_full(td) || (ret == FIO_Q_BUSY && td->cur_depth); |
4950421a | 733 | if (full || !td->o.iodepth_batch_complete) { |
6a96276c RR |
734 | min_evts = min(td->o.iodepth_batch_complete, |
735 | td->cur_depth); | |
1f84f1d9 | 736 | if (full && !min_evts && td->o.iodepth_batch_complete != 0) |
36167d82 | 737 | min_evts = 1; |
4950421a | 738 | |
581e7141 JA |
739 | if (__should_check_rate(td, 0) || |
740 | __should_check_rate(td, 1)) | |
993bf48b | 741 | fio_gettime(&comp_time, NULL); |
4950421a JA |
742 | |
743 | do { | |
581e7141 JA |
744 | ret = io_u_queued_complete(td, min_evts, bytes_done); |
745 | if (ret < 0) | |
4950421a JA |
746 | break; |
747 | ||
4950421a | 748 | } while (full && (td->cur_depth > td->o.iodepth_low)); |
ebac4655 JA |
749 | } |
750 | ||
4950421a JA |
751 | if (ret < 0) |
752 | break; | |
581e7141 | 753 | if (!(bytes_done[0] + bytes_done[1])) |
97601024 JA |
754 | continue; |
755 | ||
581e7141 JA |
756 | if (!in_ramp_time(td) && should_check_rate(td, bytes_done)) { |
757 | if (check_min_rate(td, &comp_time, bytes_done)) { | |
721938ae | 758 | if (exitall_on_terminate) |
cc0df00a | 759 | fio_terminate_threads(td->groupid); |
721938ae JA |
760 | td_verror(td, EIO, "check_min_rate"); |
761 | break; | |
762 | } | |
ebac4655 JA |
763 | } |
764 | ||
2dc1bbeb | 765 | if (td->o.thinktime) { |
9c1f7434 JA |
766 | unsigned long long b; |
767 | ||
768 | b = td->io_blocks[0] + td->io_blocks[1]; | |
2dc1bbeb | 769 | if (!(b % td->o.thinktime_blocks)) { |
48097d5c JA |
770 | int left; |
771 | ||
2dc1bbeb | 772 | if (td->o.thinktime_spin) |
6dd6f2cd | 773 | usec_spin(td->o.thinktime_spin); |
48097d5c | 774 | |
2dc1bbeb | 775 | left = td->o.thinktime - td->o.thinktime_spin; |
48097d5c JA |
776 | if (left) |
777 | usec_sleep(td, left); | |
778 | } | |
9c1f7434 | 779 | } |
ebac4655 JA |
780 | } |
781 | ||
d708ac5e JA |
782 | if (td->trim_entries) |
783 | printf("trim entries %ld\n", td->trim_entries); | |
a917a8b3 | 784 | |
aa31f1f1 SL |
785 | if (td->o.fill_device && td->error == ENOSPC) { |
786 | td->error = 0; | |
787 | td->terminate = 1; | |
788 | } | |
4d2413c6 | 789 | if (!td->error) { |
3d7c391d JA |
790 | struct fio_file *f; |
791 | ||
c01c0395 | 792 | i = td->cur_depth; |
d06093e7 | 793 | if (i) { |
581e7141 | 794 | ret = io_u_queued_complete(td, i, NULL); |
d06093e7 SL |
795 | if (td->o.fill_device && td->error == ENOSPC) |
796 | td->error = 0; | |
797 | } | |
ebac4655 | 798 | |
2dc1bbeb | 799 | if (should_fsync(td) && td->o.end_fsync) { |
84585003 | 800 | td_set_runstate(td, TD_FSYNCING); |
3d7b485f JA |
801 | |
802 | for_each_file(td, f, i) { | |
d6aed795 | 803 | if (!fio_file_open(f)) |
3d7b485f | 804 | continue; |
858a3d47 | 805 | fio_io_sync(td, f); |
3d7b485f | 806 | } |
84585003 | 807 | } |
c01c0395 JA |
808 | } else |
809 | cleanup_pending_aio(td); | |
2ba1c290 JA |
810 | |
811 | /* | |
812 | * stop job if we failed doing any IO | |
813 | */ | |
814 | if ((td->this_io_bytes[0] + td->this_io_bytes[1]) == 0) | |
815 | td->done = 1; | |
ebac4655 JA |
816 | } |
817 | ||
ebac4655 JA |
818 | static void cleanup_io_u(struct thread_data *td) |
819 | { | |
01743ee1 | 820 | struct flist_head *entry, *n; |
ebac4655 JA |
821 | struct io_u *io_u; |
822 | ||
01743ee1 JA |
823 | flist_for_each_safe(entry, n, &td->io_u_freelist) { |
824 | io_u = flist_entry(entry, struct io_u, list); | |
ebac4655 | 825 | |
01743ee1 | 826 | flist_del(&io_u->list); |
91aea6ec | 827 | fio_memfree(io_u, sizeof(*io_u)); |
ebac4655 JA |
828 | } |
829 | ||
2f9ade3c | 830 | free_io_mem(td); |
ebac4655 JA |
831 | } |
832 | ||
833 | static int init_io_u(struct thread_data *td) | |
834 | { | |
835 | struct io_u *io_u; | |
a00735e6 | 836 | unsigned int max_bs; |
eb7ccf38 | 837 | int cl_align, i, max_units; |
ebac4655 JA |
838 | char *p; |
839 | ||
1e3c09af | 840 | max_units = td->o.iodepth; |
2dc1bbeb | 841 | max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]); |
5ec10eaa JA |
842 | td->orig_buffer_size = (unsigned long long) max_bs |
843 | * (unsigned long long) max_units; | |
844 | ||
845 | if (td->o.mem_type == MEM_SHMHUGE || td->o.mem_type == MEM_MMAPHUGE) { | |
846 | unsigned long bs; | |
74b025b0 | 847 | |
5ec10eaa JA |
848 | bs = td->orig_buffer_size + td->o.hugepage_size - 1; |
849 | td->orig_buffer_size = bs & ~(td->o.hugepage_size - 1); | |
850 | } | |
ebac4655 | 851 | |
c3990645 JA |
852 | if (td->orig_buffer_size != (size_t) td->orig_buffer_size) { |
853 | log_err("fio: IO memory too large. Reduce max_bs or iodepth\n"); | |
854 | return 1; | |
855 | } | |
856 | ||
2f9ade3c JA |
857 | if (allocate_io_mem(td)) |
858 | return 1; | |
ebac4655 | 859 | |
1c04bf78 JA |
860 | if (td->o.odirect || td->o.mem_align || |
861 | (td->io_ops->flags & FIO_RAWIO)) | |
d529ee19 | 862 | p = PAGE_ALIGN(td->orig_buffer) + td->o.mem_align; |
b3f378e9 JA |
863 | else |
864 | p = td->orig_buffer; | |
865 | ||
eb7ccf38 JA |
866 | cl_align = os_cache_line_size(); |
867 | ||
ebac4655 | 868 | for (i = 0; i < max_units; i++) { |
eb7ccf38 JA |
869 | void *ptr; |
870 | ||
db1cd90b JA |
871 | if (td->terminate) |
872 | return 1; | |
eb7ccf38 | 873 | |
91aea6ec JA |
874 | ptr = fio_memalign(cl_align, sizeof(*io_u)); |
875 | if (!ptr) { | |
876 | log_err("fio: unable to allocate aligned memory\n"); | |
eb7ccf38 JA |
877 | break; |
878 | } | |
879 | ||
880 | io_u = ptr; | |
ebac4655 | 881 | memset(io_u, 0, sizeof(*io_u)); |
01743ee1 | 882 | INIT_FLIST_HEAD(&io_u->list); |
d529ee19 | 883 | dprint(FD_MEM, "io_u alloc %p, index %u\n", io_u, i); |
ebac4655 | 884 | |
b4c5e1ac JA |
885 | if (!(td->io_ops->flags & FIO_NOIO)) { |
886 | io_u->buf = p + max_bs * i; | |
d529ee19 | 887 | dprint(FD_MEM, "io_u %p, mem %p\n", io_u, io_u->buf); |
e9459e5a | 888 | |
3545a109 | 889 | if (td_write(td)) |
5973cafb | 890 | io_u_fill_buffer(td, io_u, max_bs); |
3545a109 | 891 | if (td_write(td) && td->o.verify_pattern_bytes) { |
cbe8d756 RR |
892 | /* |
893 | * Fill the buffer with the pattern if we are | |
894 | * going to be doing writes. | |
895 | */ | |
7d9fb455 | 896 | fill_pattern(td, io_u->buf, max_bs, io_u, 0, 0); |
cbe8d756 | 897 | } |
b4c5e1ac | 898 | } |
6b9cea23 | 899 | |
b1ff3403 | 900 | io_u->index = i; |
0c6e7517 | 901 | io_u->flags = IO_U_F_FREE; |
01743ee1 | 902 | flist_add(&io_u->list, &td->io_u_freelist); |
ebac4655 JA |
903 | } |
904 | ||
905 | return 0; | |
906 | } | |
907 | ||
da86774e JA |
908 | static int switch_ioscheduler(struct thread_data *td) |
909 | { | |
910 | char tmp[256], tmp2[128]; | |
911 | FILE *f; | |
912 | int ret; | |
913 | ||
ba0fbe10 | 914 | if (td->io_ops->flags & FIO_DISKLESSIO) |
f48b467c JA |
915 | return 0; |
916 | ||
da86774e JA |
917 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
918 | ||
919 | f = fopen(tmp, "r+"); | |
920 | if (!f) { | |
cbf5c1d7 | 921 | if (errno == ENOENT) { |
5ec10eaa JA |
922 | log_err("fio: os or kernel doesn't support IO scheduler" |
923 | " switching\n"); | |
cbf5c1d7 JA |
924 | return 0; |
925 | } | |
926 | td_verror(td, errno, "fopen iosched"); | |
da86774e JA |
927 | return 1; |
928 | } | |
929 | ||
930 | /* | |
931 | * Set io scheduler. | |
932 | */ | |
2dc1bbeb | 933 | ret = fwrite(td->o.ioscheduler, strlen(td->o.ioscheduler), 1, f); |
da86774e | 934 | if (ferror(f) || ret != 1) { |
e1161c32 | 935 | td_verror(td, errno, "fwrite"); |
da86774e JA |
936 | fclose(f); |
937 | return 1; | |
938 | } | |
939 | ||
940 | rewind(f); | |
941 | ||
942 | /* | |
943 | * Read back and check that the selected scheduler is now the default. | |
944 | */ | |
945 | ret = fread(tmp, 1, sizeof(tmp), f); | |
946 | if (ferror(f) || ret < 0) { | |
e1161c32 | 947 | td_verror(td, errno, "fread"); |
da86774e JA |
948 | fclose(f); |
949 | return 1; | |
950 | } | |
951 | ||
2dc1bbeb | 952 | sprintf(tmp2, "[%s]", td->o.ioscheduler); |
da86774e | 953 | if (!strstr(tmp, tmp2)) { |
2dc1bbeb | 954 | log_err("fio: io scheduler %s not found\n", td->o.ioscheduler); |
e1161c32 | 955 | td_verror(td, EINVAL, "iosched_switch"); |
da86774e JA |
956 | fclose(f); |
957 | return 1; | |
958 | } | |
959 | ||
960 | fclose(f); | |
961 | return 0; | |
962 | } | |
963 | ||
492158cf JA |
964 | static int keep_running(struct thread_data *td) |
965 | { | |
966 | unsigned long long io_done; | |
967 | ||
20e354ef JA |
968 | if (td->done) |
969 | return 0; | |
492158cf JA |
970 | if (td->o.time_based) |
971 | return 1; | |
972 | if (td->o.loops) { | |
973 | td->o.loops--; | |
974 | return 1; | |
975 | } | |
976 | ||
5ec10eaa JA |
977 | io_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE] |
978 | + td->io_skip_bytes; | |
492158cf JA |
979 | if (io_done < td->o.size) |
980 | return 1; | |
981 | ||
982 | return 0; | |
983 | } | |
984 | ||
b29ee5b3 | 985 | static void reset_io_counters(struct thread_data *td) |
ebac4655 | 986 | { |
f0505a14 | 987 | td->stat_io_bytes[0] = td->stat_io_bytes[1] = 0; |
ebac4655 | 988 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
c8eeb9df JA |
989 | td->stat_io_blocks[0] = td->stat_io_blocks[1] = 0; |
990 | td->this_io_blocks[0] = td->this_io_blocks[1] = 0; | |
20dc95c4 | 991 | td->zone_bytes = 0; |
581e7141 JA |
992 | td->rate_bytes[0] = td->rate_bytes[1] = 0; |
993 | td->rate_blocks[0] = td->rate_blocks[1] = 0; | |
ebac4655 | 994 | |
c1324df1 JA |
995 | td->last_was_sync = 0; |
996 | ||
2ba1c290 JA |
997 | /* |
998 | * reset file done count if we are to start over | |
999 | */ | |
1000 | if (td->o.time_based || td->o.loops) | |
48f5abd3 | 1001 | td->nr_done_files = 0; |
b29ee5b3 JA |
1002 | } |
1003 | ||
1004 | void reset_all_stats(struct thread_data *td) | |
1005 | { | |
1006 | struct timeval tv; | |
1007 | int i; | |
1008 | ||
1009 | reset_io_counters(td); | |
1010 | ||
1011 | for (i = 0; i < 2; i++) { | |
1012 | td->io_bytes[i] = 0; | |
1013 | td->io_blocks[i] = 0; | |
1014 | td->io_issues[i] = 0; | |
1015 | td->ts.total_io_u[i] = 0; | |
1016 | } | |
9b836561 | 1017 | |
b29ee5b3 | 1018 | fio_gettime(&tv, NULL); |
cda99fa0 SSP |
1019 | td->ts.runtime[0] = 0; |
1020 | td->ts.runtime[1] = 0; | |
b29ee5b3 JA |
1021 | memcpy(&td->epoch, &tv, sizeof(tv)); |
1022 | memcpy(&td->start, &tv, sizeof(tv)); | |
1023 | } | |
1024 | ||
df9c26b1 | 1025 | static void clear_io_state(struct thread_data *td) |
b29ee5b3 JA |
1026 | { |
1027 | struct fio_file *f; | |
1028 | unsigned int i; | |
b29ee5b3 JA |
1029 | |
1030 | reset_io_counters(td); | |
281f9b63 | 1031 | |
24ffd2c2 | 1032 | close_files(td); |
df9c26b1 | 1033 | for_each_file(td, f, i) |
d6aed795 | 1034 | fio_file_clear_done(f); |
f0153948 JA |
1035 | |
1036 | /* | |
1037 | * Set the same seed to get repeatable runs | |
1038 | */ | |
1039 | td_fill_rand_seeds(td); | |
ebac4655 JA |
1040 | } |
1041 | ||
398e8c4d JA |
1042 | static int exec_string(const char *string) |
1043 | { | |
1044 | int ret, newlen = strlen(string) + 1 + 8; | |
1045 | char *str; | |
1046 | ||
1047 | str = malloc(newlen); | |
1048 | sprintf(str, "sh -c %s", string); | |
1049 | ||
1050 | ret = system(str); | |
1051 | if (ret == -1) | |
1052 | log_err("fio: exec of cmd <%s> failed\n", str); | |
1053 | ||
1054 | free(str); | |
1055 | return ret; | |
1056 | } | |
1057 | ||
906c8d75 JA |
1058 | /* |
1059 | * Entry point for the thread based jobs. The process based jobs end up | |
1060 | * here as well, after a little setup. | |
1061 | */ | |
ebac4655 JA |
1062 | static void *thread_main(void *data) |
1063 | { | |
cda99fa0 | 1064 | unsigned long long elapsed; |
ebac4655 | 1065 | struct thread_data *td = data; |
e8462bd8 | 1066 | pthread_condattr_t attr; |
a978ba68 | 1067 | int clear_state; |
ebac4655 | 1068 | |
47f767c1 | 1069 | if (!td->o.use_thread) { |
ebac4655 | 1070 | setsid(); |
47f767c1 JA |
1071 | td->pid = getpid(); |
1072 | } else | |
1073 | td->pid = gettid(); | |
ebac4655 | 1074 | |
5921e80c | 1075 | dprint(FD_PROCESS, "jobs pid=%d started\n", (int) td->pid); |
ee56ad50 | 1076 | |
01743ee1 JA |
1077 | INIT_FLIST_HEAD(&td->io_u_freelist); |
1078 | INIT_FLIST_HEAD(&td->io_u_busylist); | |
1079 | INIT_FLIST_HEAD(&td->io_u_requeues); | |
1080 | INIT_FLIST_HEAD(&td->io_log_list); | |
1081 | INIT_FLIST_HEAD(&td->io_hist_list); | |
e8462bd8 | 1082 | INIT_FLIST_HEAD(&td->verify_list); |
0d29de83 | 1083 | INIT_FLIST_HEAD(&td->trim_list); |
e8462bd8 | 1084 | pthread_mutex_init(&td->io_u_lock, NULL); |
bb5d7d0b | 1085 | td->io_hist_tree = RB_ROOT; |
aea47d44 | 1086 | |
e8462bd8 JA |
1087 | pthread_condattr_init(&attr); |
1088 | pthread_cond_init(&td->verify_cond, &attr); | |
1089 | pthread_cond_init(&td->free_cond, &attr); | |
1090 | ||
db1cd90b | 1091 | td_set_runstate(td, TD_INITIALIZED); |
29adda3c | 1092 | dprint(FD_MUTEX, "up startup_mutex\n"); |
cdd18ad8 | 1093 | fio_mutex_up(startup_mutex); |
29adda3c | 1094 | dprint(FD_MUTEX, "wait on td->mutex\n"); |
cdd18ad8 | 1095 | fio_mutex_down(td->mutex); |
29adda3c | 1096 | dprint(FD_MUTEX, "done waiting on td->mutex\n"); |
db1cd90b JA |
1097 | |
1098 | /* | |
cdd18ad8 | 1099 | * the ->mutex mutex is now no longer used, close it to avoid |
db1cd90b JA |
1100 | * eating a file descriptor |
1101 | */ | |
cdd18ad8 | 1102 | fio_mutex_remove(td->mutex); |
db1cd90b | 1103 | |
dfc6e751 SH |
1104 | /* |
1105 | * A new gid requires privilege, so we need to do this before setting | |
1106 | * the uid. | |
1107 | */ | |
e0b0d892 JA |
1108 | if (td->o.gid != -1U && setgid(td->o.gid)) { |
1109 | td_verror(td, errno, "setgid"); | |
1110 | goto err; | |
1111 | } | |
dfc6e751 SH |
1112 | if (td->o.uid != -1U && setuid(td->o.uid)) { |
1113 | td_verror(td, errno, "setuid"); | |
1114 | goto err; | |
1115 | } | |
e0b0d892 | 1116 | |
be18a94f JA |
1117 | /* |
1118 | * If we have a gettimeofday() thread, make sure we exclude that | |
1119 | * thread from this job | |
1120 | */ | |
1121 | if (td->o.gtod_cpu) | |
1122 | fio_cpu_clear(&td->o.cpumask, td->o.gtod_cpu); | |
1123 | ||
1124 | /* | |
1125 | * Set affinity first, in case it has an impact on the memory | |
1126 | * allocations. | |
1127 | */ | |
1128 | if (td->o.cpumask_set && fio_setaffinity(td->pid, td->o.cpumask) == -1) { | |
1129 | td_verror(td, errno, "cpu_set_affinity"); | |
1130 | goto err; | |
1131 | } | |
1132 | ||
d84f8d49 JA |
1133 | /* |
1134 | * May alter parameters that init_io_u() will use, so we need to | |
1135 | * do this first. | |
1136 | */ | |
1137 | if (init_iolog(td)) | |
1138 | goto err; | |
1139 | ||
ebac4655 | 1140 | if (init_io_u(td)) |
db1cd90b | 1141 | goto err; |
ebac4655 | 1142 | |
e8462bd8 JA |
1143 | if (td->o.verify_async && verify_async_init(td)) |
1144 | goto err; | |
1145 | ||
ac684785 | 1146 | if (td->ioprio_set) { |
ebac4655 | 1147 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
e1161c32 | 1148 | td_verror(td, errno, "ioprio_set"); |
db1cd90b | 1149 | goto err; |
ebac4655 JA |
1150 | } |
1151 | } | |
1152 | ||
6adb38a1 | 1153 | if (td->o.cgroup_weight && cgroup_setup(td, cgroup_list, &cgroup_mnt)) |
a696fa2a JA |
1154 | goto err; |
1155 | ||
2dc1bbeb | 1156 | if (nice(td->o.nice) == -1) { |
e1161c32 | 1157 | td_verror(td, errno, "nice"); |
db1cd90b | 1158 | goto err; |
b6f4d880 JA |
1159 | } |
1160 | ||
2dc1bbeb | 1161 | if (td->o.ioscheduler && switch_ioscheduler(td)) |
db1cd90b | 1162 | goto err; |
37f56873 | 1163 | |
2dc1bbeb | 1164 | if (!td->o.create_serialize && setup_files(td)) |
ebac4655 JA |
1165 | goto err; |
1166 | ||
7d6c5283 JA |
1167 | if (td_io_init(td)) |
1168 | goto err; | |
1169 | ||
68727076 JA |
1170 | if (init_random_map(td)) |
1171 | goto err; | |
1172 | ||
2dc1bbeb | 1173 | if (td->o.exec_prerun) { |
398e8c4d | 1174 | if (exec_string(td->o.exec_prerun)) |
69cfd7e0 JA |
1175 | goto err; |
1176 | } | |
4e0ba8af | 1177 | |
afad68f7 ZY |
1178 | if (td->o.pre_read) { |
1179 | if (pre_read_files(td) < 0) | |
1180 | goto err; | |
1181 | } | |
1182 | ||
69008999 | 1183 | fio_gettime(&td->epoch, NULL); |
c8aaba19 | 1184 | getrusage(RUSAGE_SELF, &td->ru_start); |
69008999 | 1185 | |
a978ba68 | 1186 | clear_state = 0; |
492158cf | 1187 | while (keep_running(td)) { |
02bcaa8c | 1188 | fio_gettime(&td->start, NULL); |
c8eeb9df JA |
1189 | memcpy(&td->bw_sample_time, &td->start, sizeof(td->start)); |
1190 | memcpy(&td->iops_sample_time, &td->start, sizeof(td->start)); | |
993bf48b | 1191 | memcpy(&td->tv_cache, &td->start, sizeof(td->start)); |
ebac4655 | 1192 | |
cf2dd8d6 | 1193 | if (td->o.ratemin[0] || td->o.ratemin[1]) |
c8eeb9df | 1194 | memcpy(&td->lastrate, &td->bw_sample_time, |
5ec10eaa | 1195 | sizeof(td->lastrate)); |
ebac4655 | 1196 | |
df9c26b1 JA |
1197 | if (clear_state) |
1198 | clear_io_state(td); | |
a978ba68 | 1199 | |
ebac4655 JA |
1200 | prune_io_piece_log(td); |
1201 | ||
ba0fbe10 | 1202 | do_io(td); |
ebac4655 | 1203 | |
a978ba68 JA |
1204 | clear_state = 1; |
1205 | ||
38d77cae | 1206 | if (td_read(td) && td->io_bytes[DDIR_READ]) { |
0a4957c6 | 1207 | elapsed = utime_since_now(&td->start); |
cda99fa0 | 1208 | td->ts.runtime[DDIR_READ] += elapsed; |
38d77cae JA |
1209 | } |
1210 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) { | |
0a4957c6 | 1211 | elapsed = utime_since_now(&td->start); |
cda99fa0 | 1212 | td->ts.runtime[DDIR_WRITE] += elapsed; |
38d77cae | 1213 | } |
5ec10eaa | 1214 | |
ebac4655 JA |
1215 | if (td->error || td->terminate) |
1216 | break; | |
1217 | ||
e84c73a8 SL |
1218 | if (!td->o.do_verify || |
1219 | td->o.verify == VERIFY_NONE || | |
b67740d3 | 1220 | (td->io_ops->flags & FIO_UNIDIR)) |
ebac4655 JA |
1221 | continue; |
1222 | ||
df9c26b1 | 1223 | clear_io_state(td); |
a978ba68 | 1224 | |
02bcaa8c | 1225 | fio_gettime(&td->start, NULL); |
ebac4655 JA |
1226 | |
1227 | do_verify(td); | |
1228 | ||
cda99fa0 | 1229 | td->ts.runtime[DDIR_READ] += utime_since_now(&td->start); |
ebac4655 JA |
1230 | |
1231 | if (td->error || td->terminate) | |
1232 | break; | |
1233 | } | |
1234 | ||
36dff966 | 1235 | update_rusage_stat(td); |
cda99fa0 SSP |
1236 | td->ts.runtime[0] = (td->ts.runtime[0] + 999) / 1000; |
1237 | td->ts.runtime[1] = (td->ts.runtime[1] + 999) / 1000; | |
756867bd JA |
1238 | td->ts.total_run_time = mtime_since_now(&td->epoch); |
1239 | td->ts.io_bytes[0] = td->io_bytes[0]; | |
1240 | td->ts.io_bytes[1] = td->io_bytes[1]; | |
1241 | ||
d2bbb8d9 | 1242 | fio_mutex_down(writeout_mutex); |
7b9f733a | 1243 | if (td->bw_log) { |
f484470b | 1244 | if (td->o.bw_log_file) { |
7b9f733a | 1245 | finish_log_named(td, td->bw_log, |
f484470b JA |
1246 | td->o.bw_log_file, "bw"); |
1247 | } else | |
7b9f733a | 1248 | finish_log(td, td->bw_log, "bw"); |
e3cedca7 | 1249 | } |
7b9f733a | 1250 | if (td->lat_log) { |
02af0988 | 1251 | if (td->o.lat_log_file) { |
7b9f733a | 1252 | finish_log_named(td, td->lat_log, |
02af0988 JA |
1253 | td->o.lat_log_file, "lat"); |
1254 | } else | |
7b9f733a | 1255 | finish_log(td, td->lat_log, "lat"); |
02af0988 | 1256 | } |
7b9f733a | 1257 | if (td->slat_log) { |
f484470b | 1258 | if (td->o.lat_log_file) { |
7b9f733a | 1259 | finish_log_named(td, td->slat_log, |
1ca95738 | 1260 | td->o.lat_log_file, "slat"); |
f484470b | 1261 | } else |
7b9f733a | 1262 | finish_log(td, td->slat_log, "slat"); |
e3cedca7 | 1263 | } |
7b9f733a | 1264 | if (td->clat_log) { |
f484470b | 1265 | if (td->o.lat_log_file) { |
7b9f733a | 1266 | finish_log_named(td, td->clat_log, |
f484470b JA |
1267 | td->o.lat_log_file, "clat"); |
1268 | } else | |
7b9f733a | 1269 | finish_log(td, td->clat_log, "clat"); |
e3cedca7 | 1270 | } |
c8eeb9df JA |
1271 | if (td->iops_log) { |
1272 | if (td->o.iops_log_file) { | |
1273 | finish_log_named(td, td->iops_log, | |
1274 | td->o.iops_log_file, "iops"); | |
1275 | } else | |
1276 | finish_log(td, td->iops_log, "iops"); | |
1277 | } | |
1278 | ||
d2bbb8d9 | 1279 | fio_mutex_up(writeout_mutex); |
398e8c4d JA |
1280 | if (td->o.exec_postrun) |
1281 | exec_string(td->o.exec_postrun); | |
ebac4655 JA |
1282 | |
1283 | if (exitall_on_terminate) | |
cc0df00a | 1284 | fio_terminate_threads(td->groupid); |
ebac4655 JA |
1285 | |
1286 | err: | |
5bf13a5a | 1287 | if (td->error) |
4ceb30d4 | 1288 | log_info("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error, |
5ec10eaa | 1289 | td->verror); |
b4707ed7 JA |
1290 | |
1291 | if (td->o.verify_async) | |
1292 | verify_async_exit(td); | |
1293 | ||
24ffd2c2 | 1294 | close_and_free_files(td); |
2866c82d | 1295 | close_ioengine(td); |
ebac4655 | 1296 | cleanup_io_u(td); |
6adb38a1 | 1297 | cgroup_shutdown(td, &cgroup_mnt); |
f29b25a3 | 1298 | |
d2ce18b5 JA |
1299 | if (td->o.cpumask_set) { |
1300 | int ret = fio_cpuset_exit(&td->o.cpumask); | |
1301 | ||
1302 | td_verror(td, ret, "fio_cpuset_exit"); | |
1303 | } | |
4e78e405 | 1304 | |
f29b25a3 JA |
1305 | /* |
1306 | * do this very late, it will log file closing as well | |
1307 | */ | |
1308 | if (td->o.write_iolog_file) | |
1309 | write_iolog_close(td); | |
1310 | ||
d23bb327 | 1311 | options_mem_free(td); |
ebac4655 | 1312 | td_set_runstate(td, TD_EXITED); |
43d76807 | 1313 | return (void *) (unsigned long) td->error; |
ebac4655 JA |
1314 | } |
1315 | ||
906c8d75 JA |
1316 | /* |
1317 | * We cannot pass the td data into a forked process, so attach the td and | |
1318 | * pass it to the thread worker. | |
1319 | */ | |
a6418147 | 1320 | static int fork_main(int shmid, int offset) |
ebac4655 JA |
1321 | { |
1322 | struct thread_data *td; | |
a6418147 | 1323 | void *data, *ret; |
ebac4655 | 1324 | |
65258961 | 1325 | #ifndef __hpux |
ebac4655 JA |
1326 | data = shmat(shmid, NULL, 0); |
1327 | if (data == (void *) -1) { | |
a6418147 JA |
1328 | int __err = errno; |
1329 | ||
ebac4655 | 1330 | perror("shmat"); |
a6418147 | 1331 | return __err; |
ebac4655 | 1332 | } |
65258961 JA |
1333 | #else |
1334 | /* | |
1335 | * HP-UX inherits shm mappings? | |
1336 | */ | |
1337 | data = threads; | |
1338 | #endif | |
ebac4655 JA |
1339 | |
1340 | td = data + offset * sizeof(struct thread_data); | |
a6418147 | 1341 | ret = thread_main(td); |
ebac4655 | 1342 | shmdt(data); |
43d76807 | 1343 | return (int) (unsigned long) ret; |
ebac4655 JA |
1344 | } |
1345 | ||
906c8d75 JA |
1346 | /* |
1347 | * Run over the job map and reap the threads that have exited, if any. | |
1348 | */ | |
ebac4655 JA |
1349 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
1350 | { | |
34572e28 | 1351 | struct thread_data *td; |
1f809d15 | 1352 | int i, cputhreads, realthreads, pending, status, ret; |
ebac4655 JA |
1353 | |
1354 | /* | |
1355 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1356 | */ | |
1f809d15 | 1357 | realthreads = pending = cputhreads = 0; |
34572e28 | 1358 | for_each_td(td, i) { |
3707f45b | 1359 | int flags = 0; |
a2f77c9f | 1360 | |
84585003 JA |
1361 | /* |
1362 | * ->io_ops is NULL for a thread that has closed its | |
1363 | * io engine | |
1364 | */ | |
ba0fbe10 | 1365 | if (td->io_ops && !strcmp(td->io_ops->name, "cpuio")) |
b990b5c0 | 1366 | cputhreads++; |
1f809d15 JA |
1367 | else |
1368 | realthreads++; | |
b990b5c0 | 1369 | |
a1dedc1f AC |
1370 | if (!td->pid) { |
1371 | pending++; | |
1372 | continue; | |
1373 | } | |
1374 | if (td->runstate == TD_REAPED) | |
a2f77c9f | 1375 | continue; |
2dc1bbeb | 1376 | if (td->o.use_thread) { |
3707f45b JA |
1377 | if (td->runstate == TD_EXITED) { |
1378 | td_set_runstate(td, TD_REAPED); | |
1379 | goto reaped; | |
1380 | } | |
1381 | continue; | |
1382 | } | |
a2f77c9f JA |
1383 | |
1384 | flags = WNOHANG; | |
1385 | if (td->runstate == TD_EXITED) | |
1386 | flags = 0; | |
1387 | ||
1388 | /* | |
1389 | * check if someone quit or got killed in an unusual way | |
1390 | */ | |
1391 | ret = waitpid(td->pid, &status, flags); | |
3707f45b | 1392 | if (ret < 0) { |
a2f77c9f | 1393 | if (errno == ECHILD) { |
5921e80c JA |
1394 | log_err("fio: pid=%d disappeared %d\n", |
1395 | (int) td->pid, td->runstate); | |
a2f77c9f JA |
1396 | td_set_runstate(td, TD_REAPED); |
1397 | goto reaped; | |
1398 | } | |
1399 | perror("waitpid"); | |
1400 | } else if (ret == td->pid) { | |
1401 | if (WIFSIGNALED(status)) { | |
fab6aa71 JA |
1402 | int sig = WTERMSIG(status); |
1403 | ||
03e20d68 | 1404 | if (sig != SIGTERM) |
5ec10eaa | 1405 | log_err("fio: pid=%d, got signal=%d\n", |
5921e80c | 1406 | (int) td->pid, sig); |
fab6aa71 JA |
1407 | td_set_runstate(td, TD_REAPED); |
1408 | goto reaped; | |
1409 | } | |
a2f77c9f JA |
1410 | if (WIFEXITED(status)) { |
1411 | if (WEXITSTATUS(status) && !td->error) | |
1412 | td->error = WEXITSTATUS(status); | |
a2f77c9f | 1413 | |
a2f77c9f JA |
1414 | td_set_runstate(td, TD_REAPED); |
1415 | goto reaped; | |
a6418147 JA |
1416 | } |
1417 | } | |
ebac4655 | 1418 | |
a2f77c9f JA |
1419 | /* |
1420 | * thread is not dead, continue | |
1421 | */ | |
e48676ba | 1422 | pending++; |
a2f77c9f | 1423 | continue; |
fab6aa71 | 1424 | reaped: |
ebac4655 | 1425 | (*nr_running)--; |
581e7141 JA |
1426 | (*m_rate) -= (td->o.ratemin[0] + td->o.ratemin[1]); |
1427 | (*t_rate) -= (td->o.rate[0] + td->o.rate[1]); | |
6f88bcb0 JA |
1428 | if (!td->pid) |
1429 | pending--; | |
a2f77c9f JA |
1430 | |
1431 | if (td->error) | |
1432 | exit_value++; | |
d3eeeabc JA |
1433 | |
1434 | done_secs += mtime_since_now(&td->epoch) / 1000; | |
ebac4655 | 1435 | } |
b990b5c0 | 1436 | |
1f809d15 | 1437 | if (*nr_running == cputhreads && !pending && realthreads) |
cc0df00a | 1438 | fio_terminate_threads(TERMINATE_ALL); |
ebac4655 JA |
1439 | } |
1440 | ||
be4ecfdf JA |
1441 | static void *gtod_thread_main(void *data) |
1442 | { | |
1443 | fio_mutex_up(startup_mutex); | |
1444 | ||
1445 | /* | |
1446 | * As long as we have jobs around, update the clock. It would be nice | |
1447 | * to have some way of NOT hammering that CPU with gettimeofday(), | |
1448 | * but I'm not sure what to use outside of a simple CPU nop to relax | |
1449 | * it - we don't want to lose precision. | |
1450 | */ | |
1451 | while (threads) { | |
1452 | fio_gtod_update(); | |
1453 | nop; | |
1454 | } | |
1455 | ||
1456 | return NULL; | |
1457 | } | |
1458 | ||
1459 | static int fio_start_gtod_thread(void) | |
1460 | { | |
304a47c7 | 1461 | pthread_attr_t attr; |
f42c153d JA |
1462 | int ret; |
1463 | ||
304a47c7 VA |
1464 | pthread_attr_init(&attr); |
1465 | pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN); | |
1466 | ret = pthread_create(>od_thread, &attr, gtod_thread_main, NULL); | |
1467 | pthread_attr_destroy(&attr); | |
f42c153d JA |
1468 | if (ret) { |
1469 | log_err("Can't create gtod thread: %s\n", strerror(ret)); | |
be4ecfdf JA |
1470 | return 1; |
1471 | } | |
f42c153d JA |
1472 | |
1473 | ret = pthread_detach(gtod_thread); | |
1474 | if (ret) { | |
1475 | log_err("Can't detatch gtod thread: %s\n", strerror(ret)); | |
be4ecfdf JA |
1476 | return 1; |
1477 | } | |
1478 | ||
29adda3c | 1479 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
be4ecfdf | 1480 | fio_mutex_down(startup_mutex); |
29adda3c | 1481 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
be4ecfdf JA |
1482 | return 0; |
1483 | } | |
1484 | ||
906c8d75 JA |
1485 | /* |
1486 | * Main function for kicking off and reaping jobs, as needed. | |
1487 | */ | |
ebac4655 JA |
1488 | static void run_threads(void) |
1489 | { | |
ebac4655 JA |
1490 | struct thread_data *td; |
1491 | unsigned long spent; | |
1492 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 | 1493 | |
2f9ade3c JA |
1494 | if (fio_pin_memory()) |
1495 | return; | |
ebac4655 | 1496 | |
be4ecfdf JA |
1497 | if (fio_gtod_offload && fio_start_gtod_thread()) |
1498 | return; | |
1499 | ||
cc0df00a JA |
1500 | set_sig_handlers(); |
1501 | ||
c6ae0a5b | 1502 | if (!terse_output) { |
4ceb30d4 | 1503 | log_info("Starting "); |
9cedf167 | 1504 | if (nr_thread) |
4ceb30d4 | 1505 | log_info("%d thread%s", nr_thread, |
5ec10eaa | 1506 | nr_thread > 1 ? "s" : ""); |
9cedf167 JA |
1507 | if (nr_process) { |
1508 | if (nr_thread) | |
1509 | printf(" and "); | |
4ceb30d4 | 1510 | log_info("%d process%s", nr_process, |
5ec10eaa | 1511 | nr_process > 1 ? "es" : ""); |
9cedf167 | 1512 | } |
4ceb30d4 | 1513 | log_info("\n"); |
c6ae0a5b JA |
1514 | fflush(stdout); |
1515 | } | |
c04f7ec3 | 1516 | |
ebac4655 JA |
1517 | todo = thread_number; |
1518 | nr_running = 0; | |
1519 | nr_started = 0; | |
1520 | m_rate = t_rate = 0; | |
1521 | ||
34572e28 | 1522 | for_each_td(td, i) { |
263e529f | 1523 | print_status_init(td->thread_number - 1); |
ebac4655 | 1524 | |
067430bb | 1525 | if (!td->o.create_serialize) |
ebac4655 JA |
1526 | continue; |
1527 | ||
1528 | /* | |
1529 | * do file setup here so it happens sequentially, | |
1530 | * we don't want X number of threads getting their | |
1531 | * client data interspersed on disk | |
1532 | */ | |
53cdc686 | 1533 | if (setup_files(td)) { |
5bf13a5a JA |
1534 | exit_value++; |
1535 | if (td->error) | |
5921e80c JA |
1536 | log_err("fio: pid=%d, err=%d/%s\n", |
1537 | (int) td->pid, td->error, td->verror); | |
ebac4655 JA |
1538 | td_set_runstate(td, TD_REAPED); |
1539 | todo--; | |
c69e8875 JA |
1540 | } else { |
1541 | struct fio_file *f; | |
2b13e716 | 1542 | unsigned int j; |
c69e8875 JA |
1543 | |
1544 | /* | |
1545 | * for sharing to work, each job must always open | |
1546 | * its own files. so close them, if we opened them | |
1547 | * for creation | |
1548 | */ | |
2b13e716 | 1549 | for_each_file(td, f, j) { |
22a57ba8 JA |
1550 | if (fio_file_open(f)) |
1551 | td_io_close_file(td, f); | |
22a57ba8 | 1552 | } |
5ec10eaa | 1553 | } |
ebac4655 JA |
1554 | } |
1555 | ||
a2f77c9f JA |
1556 | set_genesis_time(); |
1557 | ||
ebac4655 | 1558 | while (todo) { |
fca70358 | 1559 | struct thread_data *map[REAL_MAX_JOBS]; |
75154845 JA |
1560 | struct timeval this_start; |
1561 | int this_jobs = 0, left; | |
1562 | ||
ebac4655 JA |
1563 | /* |
1564 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1565 | */ | |
34572e28 | 1566 | for_each_td(td, i) { |
ebac4655 JA |
1567 | if (td->runstate != TD_NOT_CREATED) |
1568 | continue; | |
1569 | ||
1570 | /* | |
1571 | * never got a chance to start, killed by other | |
1572 | * thread for some reason | |
1573 | */ | |
1574 | if (td->terminate) { | |
1575 | todo--; | |
1576 | continue; | |
1577 | } | |
1578 | ||
2dc1bbeb | 1579 | if (td->o.start_delay) { |
263e529f | 1580 | spent = mtime_since_genesis(); |
ebac4655 | 1581 | |
2dc1bbeb | 1582 | if (td->o.start_delay * 1000 > spent) |
ebac4655 JA |
1583 | continue; |
1584 | } | |
1585 | ||
6f88bcb0 JA |
1586 | if (td->o.stonewall && (nr_started || nr_running)) { |
1587 | dprint(FD_PROCESS, "%s: stonewall wait\n", | |
1588 | td->o.name); | |
ebac4655 | 1589 | break; |
6f88bcb0 | 1590 | } |
ebac4655 | 1591 | |
067430bb JA |
1592 | init_disk_util(td); |
1593 | ||
75154845 JA |
1594 | /* |
1595 | * Set state to created. Thread will transition | |
1596 | * to TD_INITIALIZED when it's done setting up. | |
1597 | */ | |
ebac4655 | 1598 | td_set_runstate(td, TD_CREATED); |
75154845 | 1599 | map[this_jobs++] = td; |
ebac4655 JA |
1600 | nr_started++; |
1601 | ||
2dc1bbeb | 1602 | if (td->o.use_thread) { |
f42c153d JA |
1603 | int ret; |
1604 | ||
ee56ad50 | 1605 | dprint(FD_PROCESS, "will pthread_create\n"); |
f42c153d JA |
1606 | ret = pthread_create(&td->thread, NULL, |
1607 | thread_main, td); | |
1608 | if (ret) { | |
1609 | log_err("pthread_create: %s\n", | |
1610 | strerror(ret)); | |
ebac4655 | 1611 | nr_started--; |
c8bb6faf | 1612 | break; |
ebac4655 | 1613 | } |
f42c153d JA |
1614 | ret = pthread_detach(td->thread); |
1615 | if (ret) | |
1616 | log_err("pthread_detach: %s", | |
1617 | strerror(ret)); | |
ebac4655 | 1618 | } else { |
5e1d306e | 1619 | pid_t pid; |
ee56ad50 | 1620 | dprint(FD_PROCESS, "will fork\n"); |
5e1d306e JA |
1621 | pid = fork(); |
1622 | if (!pid) { | |
a6418147 JA |
1623 | int ret = fork_main(shm_id, i); |
1624 | ||
5e1d306e JA |
1625 | _exit(ret); |
1626 | } else if (i == fio_debug_jobno) | |
1627 | *fio_debug_jobp = pid; | |
ebac4655 | 1628 | } |
29adda3c | 1629 | dprint(FD_MUTEX, "wait on startup_mutex\n"); |
656b1393 JA |
1630 | if (fio_mutex_down_timeout(startup_mutex, 10)) { |
1631 | log_err("fio: job startup hung? exiting.\n"); | |
cc0df00a | 1632 | fio_terminate_threads(TERMINATE_ALL); |
656b1393 JA |
1633 | fio_abort = 1; |
1634 | nr_started--; | |
1635 | break; | |
1636 | } | |
29adda3c | 1637 | dprint(FD_MUTEX, "done waiting on startup_mutex\n"); |
ebac4655 JA |
1638 | } |
1639 | ||
1640 | /* | |
75154845 JA |
1641 | * Wait for the started threads to transition to |
1642 | * TD_INITIALIZED. | |
ebac4655 | 1643 | */ |
02bcaa8c | 1644 | fio_gettime(&this_start, NULL); |
75154845 | 1645 | left = this_jobs; |
6ce15a32 | 1646 | while (left && !fio_abort) { |
75154845 JA |
1647 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
1648 | break; | |
1649 | ||
1650 | usleep(100000); | |
1651 | ||
1652 | for (i = 0; i < this_jobs; i++) { | |
1653 | td = map[i]; | |
1654 | if (!td) | |
1655 | continue; | |
b6f4d880 | 1656 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1657 | map[i] = NULL; |
1658 | left--; | |
b6f4d880 JA |
1659 | } else if (td->runstate >= TD_EXITED) { |
1660 | map[i] = NULL; | |
1661 | left--; | |
1662 | todo--; | |
1663 | nr_running++; /* work-around... */ | |
75154845 JA |
1664 | } |
1665 | } | |
1666 | } | |
1667 | ||
1668 | if (left) { | |
3b70d7e5 | 1669 | log_err("fio: %d jobs failed to start\n", left); |
75154845 JA |
1670 | for (i = 0; i < this_jobs; i++) { |
1671 | td = map[i]; | |
1672 | if (!td) | |
1673 | continue; | |
1674 | kill(td->pid, SIGTERM); | |
1675 | } | |
1676 | break; | |
1677 | } | |
1678 | ||
1679 | /* | |
b6f4d880 | 1680 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 | 1681 | */ |
34572e28 | 1682 | for_each_td(td, i) { |
75154845 | 1683 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1684 | continue; |
1685 | ||
b29ee5b3 JA |
1686 | if (in_ramp_time(td)) |
1687 | td_set_runstate(td, TD_RAMP); | |
1688 | else | |
1689 | td_set_runstate(td, TD_RUNNING); | |
ebac4655 JA |
1690 | nr_running++; |
1691 | nr_started--; | |
581e7141 JA |
1692 | m_rate += td->o.ratemin[0] + td->o.ratemin[1]; |
1693 | t_rate += td->o.rate[0] + td->o.rate[1]; | |
75154845 | 1694 | todo--; |
cdd18ad8 | 1695 | fio_mutex_up(td->mutex); |
ebac4655 JA |
1696 | } |
1697 | ||
1698 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1699 | ||
1700 | if (todo) | |
1701 | usleep(100000); | |
1702 | } | |
1703 | ||
1704 | while (nr_running) { | |
1705 | reap_threads(&nr_running, &t_rate, &m_rate); | |
cc0df00a JA |
1706 | |
1707 | if (is_backend) | |
1708 | fio_server_idle_loop(); | |
70e0c316 JA |
1709 | else |
1710 | usleep(10000); | |
ebac4655 JA |
1711 | } |
1712 | ||
1713 | update_io_ticks(); | |
2f9ade3c | 1714 | fio_unpin_memory(); |
ebac4655 JA |
1715 | } |
1716 | ||
50d16976 | 1717 | int exec_run(void) |
ebac4655 | 1718 | { |
a37f69b7 | 1719 | if (nr_clients) |
37db14fe | 1720 | return fio_handle_clients(); |
07b3232d JA |
1721 | if (exec_profile && load_profile(exec_profile)) |
1722 | return 1; | |
1723 | ||
74929ac2 JA |
1724 | if (!thread_number) |
1725 | return 0; | |
1726 | ||
bb3884d8 JA |
1727 | if (write_bw_log) { |
1728 | setup_log(&agg_io_log[DDIR_READ]); | |
1729 | setup_log(&agg_io_log[DDIR_WRITE]); | |
1730 | } | |
1731 | ||
cdd18ad8 | 1732 | startup_mutex = fio_mutex_init(0); |
03e20d68 BC |
1733 | if (startup_mutex == NULL) |
1734 | return 1; | |
d2bbb8d9 | 1735 | writeout_mutex = fio_mutex_init(1); |
03e20d68 BC |
1736 | if (writeout_mutex == NULL) |
1737 | return 1; | |
07739b57 | 1738 | |
a2f77c9f | 1739 | set_genesis_time(); |
7985701b | 1740 | create_disk_util_thread(); |
ebac4655 | 1741 | |
dae5341c JA |
1742 | cgroup_list = smalloc(sizeof(*cgroup_list)); |
1743 | INIT_FLIST_HEAD(cgroup_list); | |
1744 | ||
ebac4655 | 1745 | run_threads(); |
6ce15a32 | 1746 | |
bb3884d8 | 1747 | if (!fio_abort) { |
6ce15a32 | 1748 | show_run_stats(); |
bb3884d8 | 1749 | if (write_bw_log) { |
5ec10eaa JA |
1750 | __finish_log(agg_io_log[DDIR_READ], "agg-read_bw.log"); |
1751 | __finish_log(agg_io_log[DDIR_WRITE], | |
1752 | "agg-write_bw.log"); | |
bb3884d8 JA |
1753 | } |
1754 | } | |
ebac4655 | 1755 | |
dae5341c JA |
1756 | cgroup_kill(cgroup_list); |
1757 | sfree(cgroup_list); | |
61eb313e | 1758 | sfree(cgroup_mnt); |
39f22027 | 1759 | |
cdd18ad8 | 1760 | fio_mutex_remove(startup_mutex); |
d2bbb8d9 | 1761 | fio_mutex_remove(writeout_mutex); |
437c9b71 | 1762 | return exit_value; |
ebac4655 | 1763 | } |
50d16976 JA |
1764 | |
1765 | void reset_fio_state(void) | |
1766 | { | |
1767 | groupid = 0; | |
1768 | thread_number = 0; | |
1769 | nr_process = 0; | |
1770 | nr_thread = 0; | |
1771 | done_secs = 0; | |
1772 | } | |
1773 | ||
0ad5edcc JA |
1774 | static int endian_check(void) |
1775 | { | |
1776 | union { | |
1777 | uint8_t c[8]; | |
1778 | uint64_t v; | |
1779 | } u; | |
1780 | int le = 0, be = 0; | |
1781 | ||
1782 | u.v = 0x12; | |
1783 | if (u.c[7] == 0x12) | |
1784 | be = 1; | |
1785 | else if (u.c[0] == 0x12) | |
1786 | le = 1; | |
1787 | ||
1788 | #if defined(FIO_LITTLE_ENDIAN) | |
1789 | if (be) | |
1790 | return 1; | |
1791 | #elif defined(FIO_BIG_ENDIAN) | |
1792 | if (le) | |
1793 | return 1; | |
1794 | #else | |
1795 | return 1; | |
1796 | #endif | |
1797 | ||
1798 | if (!le && !be) | |
1799 | return 1; | |
1800 | ||
1801 | return 0; | |
1802 | } | |
1803 | ||
50d16976 JA |
1804 | int main(int argc, char *argv[], char *envp[]) |
1805 | { | |
1806 | long ps; | |
1807 | ||
0ad5edcc JA |
1808 | if (endian_check()) { |
1809 | log_err("fio: endianness settings appear wrong.\n"); | |
1810 | log_err("fio: please report this to fio@vger.kernel.org\n"); | |
1811 | return 1; | |
1812 | } | |
1813 | ||
50d16976 JA |
1814 | arch_init(envp); |
1815 | ||
1816 | sinit(); | |
1817 | ||
1818 | /* | |
1819 | * We need locale for number printing, if it isn't set then just | |
1820 | * go with the US format. | |
1821 | */ | |
1822 | if (!getenv("LC_NUMERIC")) | |
1823 | setlocale(LC_NUMERIC, "en_US"); | |
1824 | ||
1825 | ps = sysconf(_SC_PAGESIZE); | |
1826 | if (ps < 0) { | |
1827 | log_err("Failed to get page size\n"); | |
1828 | return 1; | |
1829 | } | |
1830 | ||
1831 | page_size = ps; | |
1832 | page_mask = ps - 1; | |
1833 | ||
1834 | fio_keywords_init(); | |
1835 | ||
1836 | if (parse_options(argc, argv)) | |
1837 | return 1; | |
1838 | ||
1839 | return exec_run(); | |
1840 | } |