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> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
ebac4655 JA |
21 | #include <unistd.h> |
22 | #include <fcntl.h> | |
23 | #include <string.h> | |
ebac4655 JA |
24 | #include <signal.h> |
25 | #include <time.h> | |
ebac4655 | 26 | #include <assert.h> |
ebac4655 JA |
27 | #include <sys/stat.h> |
28 | #include <sys/wait.h> | |
29 | #include <sys/ipc.h> | |
30 | #include <sys/shm.h> | |
31 | #include <sys/ioctl.h> | |
32 | #include <sys/mman.h> | |
33 | ||
34 | #include "fio.h" | |
35 | #include "os.h" | |
36 | ||
37 | #define MASK (4095) | |
38 | ||
39 | #define ALIGN(buf) (char *) (((unsigned long) (buf) + MASK) & ~(MASK)) | |
40 | ||
41 | int groupid = 0; | |
42 | int thread_number = 0; | |
43 | static char run_str[MAX_JOBS + 1]; | |
44 | int shm_id = 0; | |
5289b847 | 45 | static struct timeval genesis; |
ebac4655 | 46 | |
ebac4655 JA |
47 | static void print_thread_status(void); |
48 | ||
c04f7ec3 JA |
49 | extern unsigned long long mlock_size; |
50 | ||
ebac4655 JA |
51 | /* |
52 | * thread life cycle | |
53 | */ | |
54 | enum { | |
55 | TD_NOT_CREATED = 0, | |
56 | TD_CREATED, | |
75154845 | 57 | TD_INITIALIZED, |
ebac4655 JA |
58 | TD_RUNNING, |
59 | TD_VERIFYING, | |
60 | TD_EXITED, | |
61 | TD_REAPED, | |
62 | }; | |
63 | ||
3d60d1ed | 64 | #define should_fsync(td) ((td_write(td) || td_rw(td)) && (!(td)->odirect || (td)->override_sync)) |
ebac4655 | 65 | |
bbfd6b00 | 66 | static volatile int startup_sem; |
ebac4655 JA |
67 | |
68 | #define TERMINATE_ALL (-1) | |
75154845 | 69 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 JA |
70 | |
71 | static void terminate_threads(int group_id) | |
72 | { | |
73 | int i; | |
74 | ||
75 | for (i = 0; i < thread_number; i++) { | |
76 | struct thread_data *td = &threads[i]; | |
77 | ||
78 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { | |
79 | td->terminate = 1; | |
80 | td->start_delay = 0; | |
81 | } | |
82 | } | |
83 | } | |
84 | ||
85 | static void sig_handler(int sig) | |
86 | { | |
87 | switch (sig) { | |
88 | case SIGALRM: | |
89 | update_io_ticks(); | |
90 | disk_util_timer_arm(); | |
91 | print_thread_status(); | |
92 | break; | |
93 | default: | |
94 | printf("\nfio: terminating on signal\n"); | |
95 | fflush(stdout); | |
96 | terminate_threads(TERMINATE_ALL); | |
97 | break; | |
98 | } | |
99 | } | |
100 | ||
ebac4655 JA |
101 | static int random_map_free(struct thread_data *td, unsigned long long block) |
102 | { | |
103 | unsigned int idx = RAND_MAP_IDX(td, block); | |
104 | unsigned int bit = RAND_MAP_BIT(td, block); | |
105 | ||
106 | return (td->file_map[idx] & (1UL << bit)) == 0; | |
107 | } | |
108 | ||
109 | static int get_next_free_block(struct thread_data *td, unsigned long long *b) | |
110 | { | |
111 | int i; | |
112 | ||
113 | *b = 0; | |
114 | i = 0; | |
115 | while ((*b) * td->min_bs < td->io_size) { | |
116 | if (td->file_map[i] != -1UL) { | |
117 | *b += ffz(td->file_map[i]); | |
118 | return 0; | |
119 | } | |
120 | ||
121 | *b += BLOCKS_PER_MAP; | |
122 | i++; | |
123 | } | |
124 | ||
125 | return 1; | |
126 | } | |
127 | ||
128 | static void mark_random_map(struct thread_data *td, struct io_u *io_u) | |
129 | { | |
200bc855 | 130 | unsigned long long block = io_u->offset / (unsigned long long) td->min_bs; |
ebac4655 JA |
131 | unsigned int blocks = 0; |
132 | ||
133 | while (blocks < (io_u->buflen / td->min_bs)) { | |
134 | unsigned int idx, bit; | |
135 | ||
136 | if (!random_map_free(td, block)) | |
137 | break; | |
138 | ||
139 | idx = RAND_MAP_IDX(td, block); | |
140 | bit = RAND_MAP_BIT(td, block); | |
141 | ||
142 | assert(idx < td->num_maps); | |
143 | ||
144 | td->file_map[idx] |= (1UL << bit); | |
145 | block++; | |
146 | blocks++; | |
147 | } | |
148 | ||
149 | if ((blocks * td->min_bs) < io_u->buflen) | |
150 | io_u->buflen = blocks * td->min_bs; | |
151 | } | |
152 | ||
20dc95c4 JA |
153 | static int get_next_offset(struct thread_data *td, unsigned long long *offset) |
154 | { | |
155 | unsigned long long b, rb; | |
156 | long r; | |
157 | ||
158 | if (!td->sequential) { | |
085227ad | 159 | unsigned long long max_blocks = td->io_size / td->min_bs; |
20dc95c4 JA |
160 | int loops = 50; |
161 | ||
162 | do { | |
6dfd46b9 | 163 | r = os_random_long(&td->random_state); |
085227ad | 164 | b = ((max_blocks - 1) * r / (unsigned long long) (RAND_MAX+1.0)); |
20dc95c4 JA |
165 | rb = b + (td->file_offset / td->min_bs); |
166 | loops--; | |
167 | } while (!random_map_free(td, rb) && loops); | |
168 | ||
169 | if (!loops) { | |
170 | if (get_next_free_block(td, &b)) | |
171 | return 1; | |
172 | } | |
173 | } else | |
174 | b = td->last_pos / td->min_bs; | |
175 | ||
176 | *offset = (b * td->min_bs) + td->file_offset; | |
838a3cd3 | 177 | if (*offset > td->real_file_size) |
20dc95c4 JA |
178 | return 1; |
179 | ||
180 | return 0; | |
181 | } | |
182 | ||
183 | static unsigned int get_next_buflen(struct thread_data *td) | |
184 | { | |
185 | unsigned int buflen; | |
186 | long r; | |
187 | ||
188 | if (td->min_bs == td->max_bs) | |
189 | buflen = td->min_bs; | |
190 | else { | |
6dfd46b9 | 191 | r = os_random_long(&td->bsrange_state); |
20dc95c4 JA |
192 | buflen = (1 + (double) (td->max_bs - 1) * r / (RAND_MAX + 1.0)); |
193 | buflen = (buflen + td->min_bs - 1) & ~(td->min_bs - 1); | |
194 | } | |
195 | ||
196 | if (buflen > td->io_size - td->this_io_bytes[td->ddir]) | |
197 | buflen = td->io_size - td->this_io_bytes[td->ddir]; | |
198 | ||
199 | return buflen; | |
200 | } | |
201 | ||
ebac4655 JA |
202 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
203 | { | |
204 | unsigned long spent; | |
205 | unsigned long rate; | |
206 | int ddir = td->ddir; | |
207 | ||
208 | /* | |
209 | * allow a 2 second settle period in the beginning | |
210 | */ | |
211 | if (mtime_since(&td->start, now) < 2000) | |
212 | return 0; | |
213 | ||
214 | /* | |
215 | * if rate blocks is set, sample is running | |
216 | */ | |
217 | if (td->rate_bytes) { | |
218 | spent = mtime_since(&td->lastrate, now); | |
219 | if (spent < td->ratecycle) | |
220 | return 0; | |
221 | ||
222 | rate = (td->this_io_bytes[ddir] - td->rate_bytes) / spent; | |
223 | if (rate < td->ratemin) { | |
01452055 | 224 | printf("%s: min rate %d not met, got %ldKiB/sec\n", td->name, td->ratemin, rate); |
ebac4655 JA |
225 | if (rate_quit) |
226 | terminate_threads(td->groupid); | |
227 | return 1; | |
228 | } | |
229 | } | |
230 | ||
231 | td->rate_bytes = td->this_io_bytes[ddir]; | |
232 | memcpy(&td->lastrate, now, sizeof(*now)); | |
233 | return 0; | |
234 | } | |
235 | ||
236 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
237 | { | |
238 | if (!td->timeout) | |
239 | return 0; | |
240 | if (mtime_since(&td->epoch, t) >= td->timeout * 1000) | |
241 | return 1; | |
242 | ||
243 | return 0; | |
244 | } | |
245 | ||
246 | static void fill_random_bytes(struct thread_data *td, | |
247 | unsigned char *p, unsigned int len) | |
248 | { | |
249 | unsigned int todo; | |
250 | double r; | |
251 | ||
252 | while (len) { | |
6dfd46b9 | 253 | r = os_random_double(&td->verify_state); |
ebac4655 JA |
254 | |
255 | /* | |
256 | * lrand48_r seems to be broken and only fill the bottom | |
257 | * 32-bits, even on 64-bit archs with 64-bit longs | |
258 | */ | |
259 | todo = sizeof(r); | |
260 | if (todo > len) | |
261 | todo = len; | |
262 | ||
263 | memcpy(p, &r, todo); | |
264 | ||
265 | len -= todo; | |
266 | p += todo; | |
267 | } | |
268 | } | |
269 | ||
270 | static void hexdump(void *buffer, int len) | |
271 | { | |
272 | unsigned char *p = buffer; | |
273 | int i; | |
274 | ||
275 | for (i = 0; i < len; i++) | |
276 | printf("%02x", p[i]); | |
277 | printf("\n"); | |
278 | } | |
279 | ||
280 | static int verify_io_u_crc32(struct verify_header *hdr, struct io_u *io_u) | |
281 | { | |
282 | unsigned char *p = (unsigned char *) io_u->buf; | |
283 | unsigned long c; | |
ebac4655 JA |
284 | |
285 | p += sizeof(*hdr); | |
286 | c = crc32(p, hdr->len - sizeof(*hdr)); | |
ebac4655 | 287 | |
22f78b32 | 288 | if (c != hdr->crc32) { |
ebac4655 JA |
289 | fprintf(stderr, "crc32: verify failed at %llu/%u\n", io_u->offset, io_u->buflen); |
290 | fprintf(stderr, "crc32: wanted %lx, got %lx\n", hdr->crc32, c); | |
22f78b32 | 291 | return 1; |
ebac4655 JA |
292 | } |
293 | ||
22f78b32 | 294 | return 0; |
ebac4655 JA |
295 | } |
296 | ||
297 | static int verify_io_u_md5(struct verify_header *hdr, struct io_u *io_u) | |
298 | { | |
299 | unsigned char *p = (unsigned char *) io_u->buf; | |
300 | struct md5_ctx md5_ctx; | |
ebac4655 JA |
301 | |
302 | memset(&md5_ctx, 0, sizeof(md5_ctx)); | |
303 | p += sizeof(*hdr); | |
304 | md5_update(&md5_ctx, p, hdr->len - sizeof(*hdr)); | |
305 | ||
22f78b32 | 306 | if (memcmp(hdr->md5_digest, md5_ctx.hash, sizeof(md5_ctx.hash))) { |
ebac4655 JA |
307 | fprintf(stderr, "md5: verify failed at %llu/%u\n", io_u->offset, io_u->buflen); |
308 | hexdump(hdr->md5_digest, sizeof(hdr->md5_digest)); | |
309 | hexdump(md5_ctx.hash, sizeof(md5_ctx.hash)); | |
22f78b32 | 310 | return 1; |
ebac4655 JA |
311 | } |
312 | ||
22f78b32 | 313 | return 0; |
ebac4655 JA |
314 | } |
315 | ||
316 | static int verify_io_u(struct io_u *io_u) | |
317 | { | |
318 | struct verify_header *hdr = (struct verify_header *) io_u->buf; | |
319 | int ret; | |
320 | ||
321 | if (hdr->fio_magic != FIO_HDR_MAGIC) | |
322 | return 1; | |
323 | ||
324 | if (hdr->verify_type == VERIFY_MD5) | |
325 | ret = verify_io_u_md5(hdr, io_u); | |
326 | else if (hdr->verify_type == VERIFY_CRC32) | |
327 | ret = verify_io_u_crc32(hdr, io_u); | |
328 | else { | |
329 | fprintf(stderr, "Bad verify type %d\n", hdr->verify_type); | |
330 | ret = 1; | |
331 | } | |
332 | ||
333 | return ret; | |
334 | } | |
335 | ||
336 | static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len) | |
337 | { | |
338 | hdr->crc32 = crc32(p, len); | |
339 | } | |
340 | ||
341 | static void fill_md5(struct verify_header *hdr, void *p, unsigned int len) | |
342 | { | |
343 | struct md5_ctx md5_ctx; | |
344 | ||
345 | memset(&md5_ctx, 0, sizeof(md5_ctx)); | |
346 | md5_update(&md5_ctx, p, len); | |
347 | memcpy(hdr->md5_digest, md5_ctx.hash, sizeof(md5_ctx.hash)); | |
348 | } | |
349 | ||
a6ccc7be | 350 | static int get_rw_ddir(struct thread_data *td) |
3d60d1ed | 351 | { |
a6ccc7be JA |
352 | if (td_rw(td)) { |
353 | struct timeval now; | |
354 | unsigned long elapsed; | |
3d60d1ed | 355 | |
a6ccc7be JA |
356 | gettimeofday(&now, NULL); |
357 | elapsed = mtime_since_now(&td->rwmix_switch); | |
3d60d1ed | 358 | |
a6ccc7be JA |
359 | /* |
360 | * Check if it's time to seed a new data direction. | |
361 | */ | |
362 | if (elapsed >= td->rwmixcycle) { | |
c1ee2ca4 | 363 | int v; |
a6ccc7be | 364 | long r; |
3d60d1ed | 365 | |
c1ee2ca4 JA |
366 | r = os_random_long(&td->rwmix_state); |
367 | v = 1 + (int) (100.0 * (r / (RAND_MAX + 1.0))); | |
a6ccc7be JA |
368 | if (v < td->rwmixread) |
369 | td->rwmix_ddir = DDIR_READ; | |
370 | else | |
371 | td->rwmix_ddir = DDIR_WRITE; | |
372 | memcpy(&td->rwmix_switch, &now, sizeof(now)); | |
373 | } | |
374 | return td->rwmix_ddir; | |
375 | } else if (td_read(td)) | |
3d60d1ed JA |
376 | return DDIR_READ; |
377 | else | |
378 | return DDIR_WRITE; | |
379 | } | |
380 | ||
ebac4655 JA |
381 | /* |
382 | * fill body of io_u->buf with random data and add a header with the | |
22f78b32 | 383 | * crc32 or md5 sum of that data. |
ebac4655 JA |
384 | */ |
385 | static void populate_io_u(struct thread_data *td, struct io_u *io_u) | |
386 | { | |
387 | unsigned char *p = (unsigned char *) io_u->buf; | |
388 | struct verify_header hdr; | |
389 | ||
390 | hdr.fio_magic = FIO_HDR_MAGIC; | |
391 | hdr.len = io_u->buflen; | |
392 | p += sizeof(hdr); | |
393 | fill_random_bytes(td, p, io_u->buflen - sizeof(hdr)); | |
394 | ||
395 | if (td->verify == VERIFY_MD5) { | |
396 | fill_md5(&hdr, p, io_u->buflen - sizeof(hdr)); | |
397 | hdr.verify_type = VERIFY_MD5; | |
398 | } else { | |
399 | fill_crc32(&hdr, p, io_u->buflen - sizeof(hdr)); | |
400 | hdr.verify_type = VERIFY_CRC32; | |
401 | } | |
402 | ||
403 | memcpy(io_u->buf, &hdr, sizeof(hdr)); | |
404 | } | |
405 | ||
aea47d44 | 406 | static int td_io_prep(struct thread_data *td, struct io_u *io_u) |
20dc95c4 | 407 | { |
20dc95c4 JA |
408 | if (td->io_prep && td->io_prep(td, io_u)) |
409 | return 1; | |
410 | ||
411 | return 0; | |
412 | } | |
413 | ||
b1ff3403 | 414 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
ebac4655 JA |
415 | { |
416 | list_del(&io_u->list); | |
417 | list_add(&io_u->list, &td->io_u_freelist); | |
418 | td->cur_depth--; | |
419 | } | |
420 | ||
843a7413 JA |
421 | static int fill_io_u(struct thread_data *td, struct io_u *io_u) |
422 | { | |
423 | /* | |
424 | * If using an iolog, grab next piece if any available. | |
425 | */ | |
426 | if (td->read_iolog) | |
427 | return read_iolog_get(td, io_u); | |
428 | ||
aea47d44 JA |
429 | /* |
430 | * No log, let the seq/rand engine retrieve the next position. | |
431 | */ | |
432 | if (!get_next_offset(td, &io_u->offset)) { | |
433 | io_u->buflen = get_next_buflen(td); | |
434 | ||
435 | if (io_u->buflen) { | |
436 | io_u->ddir = get_rw_ddir(td); | |
843a7413 JA |
437 | |
438 | /* | |
439 | * If using a write iolog, store this entry. | |
440 | */ | |
441 | if (td->write_iolog) | |
442 | write_iolog_put(td, io_u); | |
443 | ||
aea47d44 JA |
444 | return 0; |
445 | } | |
446 | } | |
447 | ||
448 | return 1; | |
449 | } | |
450 | ||
22f78b32 | 451 | #define queue_full(td) list_empty(&(td)->io_u_freelist) |
ebac4655 | 452 | |
b1ff3403 | 453 | struct io_u *__get_io_u(struct thread_data *td) |
ebac4655 | 454 | { |
22f78b32 | 455 | struct io_u *io_u = NULL; |
ebac4655 | 456 | |
22f78b32 JA |
457 | if (!queue_full(td)) { |
458 | io_u = list_entry(td->io_u_freelist.next, struct io_u, list); | |
459 | ||
460 | io_u->error = 0; | |
461 | io_u->resid = 0; | |
462 | list_del(&io_u->list); | |
463 | list_add(&io_u->list, &td->io_u_busylist); | |
464 | td->cur_depth++; | |
465 | } | |
ebac4655 | 466 | |
ebac4655 JA |
467 | return io_u; |
468 | } | |
469 | ||
ebac4655 JA |
470 | static struct io_u *get_io_u(struct thread_data *td) |
471 | { | |
472 | struct io_u *io_u; | |
473 | ||
474 | io_u = __get_io_u(td); | |
475 | if (!io_u) | |
476 | return NULL; | |
477 | ||
20dc95c4 JA |
478 | if (td->zone_bytes >= td->zone_size) { |
479 | td->zone_bytes = 0; | |
480 | td->last_pos += td->zone_skip; | |
481 | } | |
482 | ||
aea47d44 | 483 | if (fill_io_u(td, io_u)) { |
ebac4655 JA |
484 | put_io_u(td, io_u); |
485 | return NULL; | |
486 | } | |
487 | ||
838a3cd3 JA |
488 | if (io_u->buflen + io_u->offset > td->real_file_size) |
489 | io_u->buflen = td->real_file_size - io_u->offset; | |
ebac4655 JA |
490 | |
491 | if (!io_u->buflen) { | |
492 | put_io_u(td, io_u); | |
493 | return NULL; | |
494 | } | |
495 | ||
843a7413 | 496 | if (!td->read_iolog && !td->sequential) |
ebac4655 JA |
497 | mark_random_map(td, io_u); |
498 | ||
20dc95c4 | 499 | td->last_pos += io_u->buflen; |
ebac4655 JA |
500 | |
501 | if (td->verify != VERIFY_NONE) | |
502 | populate_io_u(td, io_u); | |
503 | ||
aea47d44 | 504 | if (td_io_prep(td, io_u)) { |
ebac4655 JA |
505 | put_io_u(td, io_u); |
506 | return NULL; | |
507 | } | |
508 | ||
509 | gettimeofday(&io_u->start_time, NULL); | |
510 | return io_u; | |
511 | } | |
512 | ||
513 | static inline void td_set_runstate(struct thread_data *td, int runstate) | |
514 | { | |
515 | td->old_runstate = td->runstate; | |
516 | td->runstate = runstate; | |
517 | } | |
518 | ||
aea47d44 | 519 | static int get_next_verify(struct thread_data *td, struct io_u *io_u) |
ebac4655 JA |
520 | { |
521 | struct io_piece *ipo; | |
522 | ||
22f78b32 JA |
523 | if (!list_empty(&td->io_hist_list)) { |
524 | ipo = list_entry(td->io_hist_list.next, struct io_piece, list); | |
ebac4655 | 525 | |
22f78b32 | 526 | list_del(&ipo->list); |
ebac4655 | 527 | |
22f78b32 JA |
528 | io_u->offset = ipo->offset; |
529 | io_u->buflen = ipo->len; | |
530 | io_u->ddir = DDIR_READ; | |
531 | free(ipo); | |
532 | return 0; | |
533 | } | |
534 | ||
535 | return 1; | |
ebac4655 JA |
536 | } |
537 | ||
ebac4655 JA |
538 | static int sync_td(struct thread_data *td) |
539 | { | |
540 | if (td->io_sync) | |
541 | return td->io_sync(td); | |
542 | ||
543 | return 0; | |
544 | } | |
545 | ||
546 | static int io_u_getevents(struct thread_data *td, int min, int max, | |
547 | struct timespec *t) | |
548 | { | |
549 | return td->io_getevents(td, min, max, t); | |
550 | } | |
551 | ||
552 | static int io_u_queue(struct thread_data *td, struct io_u *io_u) | |
553 | { | |
554 | gettimeofday(&io_u->issue_time, NULL); | |
555 | ||
556 | return td->io_queue(td, io_u); | |
557 | } | |
558 | ||
559 | #define iocb_time(iocb) ((unsigned long) (iocb)->data) | |
560 | ||
561 | static void io_completed(struct thread_data *td, struct io_u *io_u, | |
562 | struct io_completion_data *icd) | |
563 | { | |
564 | struct timeval e; | |
565 | unsigned long msec; | |
566 | ||
567 | gettimeofday(&e, NULL); | |
568 | ||
569 | if (!io_u->error) { | |
20dc95c4 | 570 | unsigned int bytes = io_u->buflen - io_u->resid; |
3d60d1ed | 571 | const int idx = io_u->ddir; |
ebac4655 JA |
572 | |
573 | td->io_blocks[idx]++; | |
20dc95c4 JA |
574 | td->io_bytes[idx] += bytes; |
575 | td->zone_bytes += bytes; | |
576 | td->this_io_bytes[idx] += bytes; | |
ebac4655 JA |
577 | |
578 | msec = mtime_since(&io_u->issue_time, &e); | |
579 | ||
3d60d1ed JA |
580 | add_clat_sample(td, idx, msec); |
581 | add_bw_sample(td, idx); | |
ebac4655 | 582 | |
3d60d1ed | 583 | if ((td_rw(td) || td_write(td)) && idx == DDIR_WRITE) |
ebac4655 JA |
584 | log_io_piece(td, io_u); |
585 | ||
20dc95c4 | 586 | icd->bytes_done[idx] += bytes; |
ebac4655 JA |
587 | } else |
588 | icd->error = io_u->error; | |
589 | } | |
590 | ||
591 | static void ios_completed(struct thread_data *td,struct io_completion_data *icd) | |
592 | { | |
593 | struct io_u *io_u; | |
594 | int i; | |
595 | ||
596 | icd->error = 0; | |
597 | icd->bytes_done[0] = icd->bytes_done[1] = 0; | |
598 | ||
599 | for (i = 0; i < icd->nr; i++) { | |
600 | io_u = td->io_event(td, i); | |
601 | ||
602 | io_completed(td, io_u, icd); | |
603 | put_io_u(td, io_u); | |
604 | } | |
605 | } | |
606 | ||
607 | static void cleanup_pending_aio(struct thread_data *td) | |
608 | { | |
609 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0}; | |
610 | struct list_head *entry, *n; | |
611 | struct io_completion_data icd; | |
612 | struct io_u *io_u; | |
613 | int r; | |
614 | ||
615 | /* | |
616 | * get immediately available events, if any | |
617 | */ | |
618 | r = io_u_getevents(td, 0, td->cur_depth, &ts); | |
619 | if (r > 0) { | |
620 | icd.nr = r; | |
621 | ios_completed(td, &icd); | |
622 | } | |
623 | ||
624 | /* | |
625 | * now cancel remaining active events | |
626 | */ | |
627 | if (td->io_cancel) { | |
628 | list_for_each_safe(entry, n, &td->io_u_busylist) { | |
629 | io_u = list_entry(entry, struct io_u, list); | |
630 | ||
631 | r = td->io_cancel(td, io_u); | |
632 | if (!r) | |
633 | put_io_u(td, io_u); | |
634 | } | |
635 | } | |
636 | ||
637 | if (td->cur_depth) { | |
638 | r = io_u_getevents(td, td->cur_depth, td->cur_depth, NULL); | |
639 | if (r > 0) { | |
640 | icd.nr = r; | |
641 | ios_completed(td, &icd); | |
642 | } | |
643 | } | |
644 | } | |
645 | ||
646 | static int do_io_u_verify(struct thread_data *td, struct io_u **io_u) | |
647 | { | |
648 | struct io_u *v_io_u = *io_u; | |
649 | int ret = 0; | |
650 | ||
651 | if (v_io_u) { | |
652 | ret = verify_io_u(v_io_u); | |
653 | put_io_u(td, v_io_u); | |
654 | *io_u = NULL; | |
655 | } | |
656 | ||
657 | return ret; | |
658 | } | |
659 | ||
660 | static void do_verify(struct thread_data *td) | |
661 | { | |
662 | struct timeval t; | |
663 | struct io_u *io_u, *v_io_u = NULL; | |
664 | struct io_completion_data icd; | |
665 | int ret; | |
666 | ||
667 | td_set_runstate(td, TD_VERIFYING); | |
668 | ||
669 | do { | |
670 | if (td->terminate) | |
671 | break; | |
672 | ||
673 | gettimeofday(&t, NULL); | |
674 | if (runtime_exceeded(td, &t)) | |
675 | break; | |
676 | ||
677 | io_u = __get_io_u(td); | |
678 | if (!io_u) | |
679 | break; | |
680 | ||
aea47d44 | 681 | if (get_next_verify(td, io_u)) { |
ebac4655 JA |
682 | put_io_u(td, io_u); |
683 | break; | |
684 | } | |
685 | ||
aea47d44 | 686 | if (td_io_prep(td, io_u)) { |
ebac4655 JA |
687 | put_io_u(td, io_u); |
688 | break; | |
689 | } | |
690 | ||
691 | ret = io_u_queue(td, io_u); | |
692 | if (ret) { | |
693 | put_io_u(td, io_u); | |
694 | td_verror(td, ret); | |
695 | break; | |
696 | } | |
697 | ||
698 | /* | |
699 | * we have one pending to verify, do that while | |
700 | * we are doing io on the next one | |
701 | */ | |
702 | if (do_io_u_verify(td, &v_io_u)) | |
703 | break; | |
704 | ||
705 | ret = io_u_getevents(td, 1, 1, NULL); | |
706 | if (ret != 1) { | |
707 | if (ret < 0) | |
708 | td_verror(td, ret); | |
709 | break; | |
710 | } | |
711 | ||
712 | v_io_u = td->io_event(td, 0); | |
713 | icd.nr = 1; | |
714 | icd.error = 0; | |
715 | io_completed(td, v_io_u, &icd); | |
716 | ||
717 | if (icd.error) { | |
718 | td_verror(td, icd.error); | |
719 | put_io_u(td, v_io_u); | |
720 | v_io_u = NULL; | |
721 | break; | |
722 | } | |
723 | ||
ebac4655 JA |
724 | /* |
725 | * if we can't submit more io, we need to verify now | |
726 | */ | |
727 | if (queue_full(td) && do_io_u_verify(td, &v_io_u)) | |
728 | break; | |
729 | ||
730 | } while (1); | |
731 | ||
732 | do_io_u_verify(td, &v_io_u); | |
733 | ||
734 | if (td->cur_depth) | |
735 | cleanup_pending_aio(td); | |
736 | ||
737 | td_set_runstate(td, TD_RUNNING); | |
738 | } | |
739 | ||
32cd46a0 JA |
740 | /* |
741 | * Main IO worker functions. It retrieves io_u's to process and queues | |
742 | * and reaps them, checking for rate and errors along the way. | |
743 | */ | |
ebac4655 JA |
744 | static void do_io(struct thread_data *td) |
745 | { | |
746 | struct io_completion_data icd; | |
747 | struct timeval s, e; | |
748 | unsigned long usec; | |
749 | ||
750 | while (td->this_io_bytes[td->ddir] < td->io_size) { | |
751 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0}; | |
752 | struct timespec *timeout; | |
753 | int ret, min_evts = 0; | |
754 | struct io_u *io_u; | |
755 | ||
756 | if (td->terminate) | |
757 | break; | |
758 | ||
759 | io_u = get_io_u(td); | |
760 | if (!io_u) | |
761 | break; | |
762 | ||
763 | memcpy(&s, &io_u->start_time, sizeof(s)); | |
764 | ||
765 | ret = io_u_queue(td, io_u); | |
766 | if (ret) { | |
767 | put_io_u(td, io_u); | |
768 | td_verror(td, ret); | |
769 | break; | |
770 | } | |
771 | ||
772 | add_slat_sample(td, io_u->ddir, mtime_since(&io_u->start_time, &io_u->issue_time)); | |
773 | ||
774 | if (td->cur_depth < td->iodepth) { | |
775 | timeout = &ts; | |
776 | min_evts = 0; | |
777 | } else { | |
778 | timeout = NULL; | |
779 | min_evts = 1; | |
780 | } | |
781 | ||
782 | ret = io_u_getevents(td, min_evts, td->cur_depth, timeout); | |
783 | if (ret < 0) { | |
784 | td_verror(td, ret); | |
785 | break; | |
786 | } else if (!ret) | |
787 | continue; | |
788 | ||
789 | icd.nr = ret; | |
790 | ios_completed(td, &icd); | |
791 | if (icd.error) { | |
792 | td_verror(td, icd.error); | |
793 | break; | |
794 | } | |
795 | ||
796 | /* | |
797 | * the rate is batched for now, it should work for batches | |
798 | * of completions except the very first one which may look | |
799 | * a little bursty | |
800 | */ | |
801 | gettimeofday(&e, NULL); | |
802 | usec = utime_since(&s, &e); | |
803 | ||
804 | rate_throttle(td, usec, icd.bytes_done[td->ddir]); | |
805 | ||
806 | if (check_min_rate(td, &e)) { | |
807 | td_verror(td, ENOMEM); | |
808 | break; | |
809 | } | |
810 | ||
811 | if (runtime_exceeded(td, &e)) | |
812 | break; | |
813 | ||
814 | if (td->thinktime) | |
815 | usec_sleep(td, td->thinktime); | |
816 | ||
817 | if (should_fsync(td) && td->fsync_blocks && | |
818 | (td->io_blocks[DDIR_WRITE] % td->fsync_blocks) == 0) | |
819 | sync_td(td); | |
820 | } | |
821 | ||
822 | if (td->cur_depth) | |
823 | cleanup_pending_aio(td); | |
824 | ||
fc1a4713 | 825 | if (should_fsync(td) && td->end_fsync) |
ebac4655 JA |
826 | sync_td(td); |
827 | } | |
828 | ||
829 | static void cleanup_io(struct thread_data *td) | |
830 | { | |
831 | if (td->io_cleanup) | |
832 | td->io_cleanup(td); | |
833 | } | |
834 | ||
835 | static int init_io(struct thread_data *td) | |
836 | { | |
837 | if (td->io_engine == FIO_SYNCIO) | |
838 | return fio_syncio_init(td); | |
839 | else if (td->io_engine == FIO_MMAPIO) | |
840 | return fio_mmapio_init(td); | |
841 | else if (td->io_engine == FIO_LIBAIO) | |
842 | return fio_libaio_init(td); | |
843 | else if (td->io_engine == FIO_POSIXAIO) | |
844 | return fio_posixaio_init(td); | |
845 | else if (td->io_engine == FIO_SGIO) | |
846 | return fio_sgio_init(td); | |
8756e4d4 JA |
847 | else if (td->io_engine == FIO_SPLICEIO) |
848 | return fio_spliceio_init(td); | |
ebac4655 JA |
849 | else { |
850 | fprintf(stderr, "bad io_engine %d\n", td->io_engine); | |
851 | return 1; | |
852 | } | |
853 | } | |
854 | ||
855 | static void cleanup_io_u(struct thread_data *td) | |
856 | { | |
857 | struct list_head *entry, *n; | |
858 | struct io_u *io_u; | |
859 | ||
860 | list_for_each_safe(entry, n, &td->io_u_freelist) { | |
861 | io_u = list_entry(entry, struct io_u, list); | |
862 | ||
863 | list_del(&io_u->list); | |
864 | free(io_u); | |
865 | } | |
866 | ||
867 | if (td->mem_type == MEM_MALLOC) | |
868 | free(td->orig_buffer); | |
869 | else if (td->mem_type == MEM_SHM) { | |
870 | struct shmid_ds sbuf; | |
871 | ||
872 | shmdt(td->orig_buffer); | |
873 | shmctl(td->shm_id, IPC_RMID, &sbuf); | |
874 | } else if (td->mem_type == MEM_MMAP) | |
875 | munmap(td->orig_buffer, td->orig_buffer_size); | |
876 | else | |
877 | fprintf(stderr, "Bad memory type %d\n", td->mem_type); | |
878 | ||
879 | td->orig_buffer = NULL; | |
880 | } | |
881 | ||
882 | static int init_io_u(struct thread_data *td) | |
883 | { | |
884 | struct io_u *io_u; | |
885 | int i, max_units; | |
886 | char *p; | |
887 | ||
888 | if (td->io_engine & FIO_SYNCIO) | |
889 | max_units = 1; | |
890 | else | |
891 | max_units = td->iodepth; | |
892 | ||
893 | td->orig_buffer_size = td->max_bs * max_units + MASK; | |
894 | ||
895 | if (td->mem_type == MEM_MALLOC) | |
896 | td->orig_buffer = malloc(td->orig_buffer_size); | |
897 | else if (td->mem_type == MEM_SHM) { | |
898 | td->shm_id = shmget(IPC_PRIVATE, td->orig_buffer_size, IPC_CREAT | 0600); | |
899 | if (td->shm_id < 0) { | |
900 | td_verror(td, errno); | |
901 | perror("shmget"); | |
902 | return 1; | |
903 | } | |
904 | ||
905 | td->orig_buffer = shmat(td->shm_id, NULL, 0); | |
906 | if (td->orig_buffer == (void *) -1) { | |
907 | td_verror(td, errno); | |
908 | perror("shmat"); | |
909 | td->orig_buffer = NULL; | |
910 | return 1; | |
911 | } | |
912 | } else if (td->mem_type == MEM_MMAP) { | |
913 | td->orig_buffer = mmap(NULL, td->orig_buffer_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | OS_MAP_ANON, 0, 0); | |
914 | if (td->orig_buffer == MAP_FAILED) { | |
915 | td_verror(td, errno); | |
916 | perror("mmap"); | |
917 | td->orig_buffer = NULL; | |
918 | return 1; | |
919 | } | |
920 | } | |
921 | ||
ebac4655 JA |
922 | p = ALIGN(td->orig_buffer); |
923 | for (i = 0; i < max_units; i++) { | |
924 | io_u = malloc(sizeof(*io_u)); | |
925 | memset(io_u, 0, sizeof(*io_u)); | |
926 | INIT_LIST_HEAD(&io_u->list); | |
927 | ||
928 | io_u->buf = p + td->max_bs * i; | |
b1ff3403 | 929 | io_u->index = i; |
ebac4655 JA |
930 | list_add(&io_u->list, &td->io_u_freelist); |
931 | } | |
932 | ||
933 | return 0; | |
934 | } | |
935 | ||
936 | static int create_file(struct thread_data *td, unsigned long long size, | |
937 | int extend) | |
938 | { | |
939 | unsigned long long left; | |
940 | unsigned int bs; | |
941 | int r, oflags; | |
942 | char *b; | |
943 | ||
944 | /* | |
945 | * unless specifically asked for overwrite, let normal io extend it | |
946 | */ | |
947 | if (td_write(td) && !td->overwrite) | |
948 | return 0; | |
949 | ||
950 | if (!size) { | |
951 | fprintf(stderr, "Need size for create\n"); | |
952 | td_verror(td, EINVAL); | |
953 | return 1; | |
954 | } | |
955 | ||
956 | if (!extend) { | |
957 | oflags = O_CREAT | O_TRUNC; | |
01452055 | 958 | printf("%s: Laying out IO file (%LuMiB)\n", td->name, size >> 20); |
ebac4655 JA |
959 | } else { |
960 | oflags = O_APPEND; | |
01452055 | 961 | printf("%s: Extending IO file (%Lu -> %LuMiB)\n", td->name, (td->file_size - size) >> 20, td->file_size >> 20); |
ebac4655 JA |
962 | } |
963 | ||
964 | td->fd = open(td->file_name, O_WRONLY | oflags, 0644); | |
965 | if (td->fd < 0) { | |
966 | td_verror(td, errno); | |
967 | return 1; | |
968 | } | |
969 | ||
970 | if (!extend && ftruncate(td->fd, td->file_size) == -1) { | |
971 | td_verror(td, errno); | |
972 | return 1; | |
973 | } | |
974 | ||
975 | td->io_size = td->file_size; | |
976 | b = malloc(td->max_bs); | |
977 | memset(b, 0, td->max_bs); | |
978 | ||
979 | left = size; | |
980 | while (left && !td->terminate) { | |
981 | bs = td->max_bs; | |
982 | if (bs > left) | |
983 | bs = left; | |
984 | ||
985 | r = write(td->fd, b, bs); | |
986 | ||
987 | if (r == (int) bs) { | |
988 | left -= bs; | |
989 | continue; | |
990 | } else { | |
991 | if (r < 0) | |
992 | td_verror(td, errno); | |
993 | else | |
994 | td_verror(td, EIO); | |
995 | ||
996 | break; | |
997 | } | |
998 | } | |
999 | ||
1000 | if (td->terminate) | |
1001 | unlink(td->file_name); | |
1002 | else if (td->create_fsync) | |
1003 | fsync(td->fd); | |
1004 | ||
1005 | close(td->fd); | |
1006 | td->fd = -1; | |
1007 | free(b); | |
1008 | return 0; | |
1009 | } | |
1010 | ||
1011 | static int file_size(struct thread_data *td) | |
1012 | { | |
1013 | struct stat st; | |
1014 | ||
1015 | if (fstat(td->fd, &st) == -1) { | |
1016 | td_verror(td, errno); | |
1017 | return 1; | |
1018 | } | |
1019 | ||
838a3cd3 JA |
1020 | td->real_file_size = st.st_size; |
1021 | ||
1022 | if (!td->file_size || td->file_size > td->real_file_size) | |
1023 | td->file_size = td->real_file_size; | |
ebac4655 | 1024 | |
e8e387c1 | 1025 | td->file_size -= td->file_offset; |
ebac4655 JA |
1026 | return 0; |
1027 | } | |
1028 | ||
1029 | static int bdev_size(struct thread_data *td) | |
1030 | { | |
9104f874 | 1031 | unsigned long long bytes; |
ebac4655 JA |
1032 | int r; |
1033 | ||
1034 | r = blockdev_size(td->fd, &bytes); | |
1035 | if (r) { | |
1036 | td_verror(td, r); | |
1037 | return 1; | |
1038 | } | |
1039 | ||
838a3cd3 JA |
1040 | td->real_file_size = bytes; |
1041 | ||
ebac4655 JA |
1042 | /* |
1043 | * no extend possibilities, so limit size to device size if too large | |
1044 | */ | |
838a3cd3 JA |
1045 | if (!td->file_size || td->file_size > td->real_file_size) |
1046 | td->file_size = td->real_file_size; | |
ebac4655 | 1047 | |
e8e387c1 | 1048 | td->file_size -= td->file_offset; |
ebac4655 JA |
1049 | return 0; |
1050 | } | |
1051 | ||
1052 | static int get_file_size(struct thread_data *td) | |
1053 | { | |
0af7b542 | 1054 | int ret = 0; |
ebac4655 JA |
1055 | |
1056 | if (td->filetype == FIO_TYPE_FILE) | |
1057 | ret = file_size(td); | |
0af7b542 | 1058 | else if (td->filetype == FIO_TYPE_BD) |
ebac4655 | 1059 | ret = bdev_size(td); |
0af7b542 JA |
1060 | else |
1061 | td->real_file_size = -1; | |
ebac4655 JA |
1062 | |
1063 | if (ret) | |
1064 | return ret; | |
1065 | ||
e8e387c1 | 1066 | if (td->file_offset > td->real_file_size) { |
01452055 | 1067 | fprintf(stderr, "%s: offset extends end (%Lu > %Lu)\n", td->name, td->file_offset, td->real_file_size); |
ebac4655 JA |
1068 | return 1; |
1069 | } | |
1070 | ||
838a3cd3 | 1071 | td->io_size = td->file_size; |
ebac4655 | 1072 | if (td->io_size == 0) { |
01452055 | 1073 | fprintf(stderr, "%s: no io blocks\n", td->name); |
ebac4655 JA |
1074 | td_verror(td, EINVAL); |
1075 | return 1; | |
1076 | } | |
1077 | ||
20dc95c4 JA |
1078 | if (!td->zone_size) |
1079 | td->zone_size = td->io_size; | |
1080 | ||
ebac4655 JA |
1081 | td->total_io_size = td->io_size * td->loops; |
1082 | return 0; | |
1083 | } | |
1084 | ||
1085 | static int setup_file_mmap(struct thread_data *td) | |
1086 | { | |
1087 | int flags; | |
1088 | ||
3d60d1ed JA |
1089 | if (td_rw(td)) |
1090 | flags = PROT_READ | PROT_WRITE; | |
1091 | else if (td_write(td)) { | |
ebac4655 JA |
1092 | flags = PROT_WRITE; |
1093 | ||
1094 | if (td->verify != VERIFY_NONE) | |
1095 | flags |= PROT_READ; | |
3d60d1ed JA |
1096 | } else |
1097 | flags = PROT_READ; | |
ebac4655 JA |
1098 | |
1099 | td->mmap = mmap(NULL, td->file_size, flags, MAP_SHARED, td->fd, td->file_offset); | |
1100 | if (td->mmap == MAP_FAILED) { | |
1101 | td->mmap = NULL; | |
1102 | td_verror(td, errno); | |
1103 | return 1; | |
1104 | } | |
1105 | ||
1106 | if (td->invalidate_cache) { | |
1107 | if (madvise(td->mmap, td->file_size, MADV_DONTNEED) < 0) { | |
1108 | td_verror(td, errno); | |
1109 | return 1; | |
1110 | } | |
1111 | } | |
1112 | ||
1113 | if (td->sequential) { | |
1114 | if (madvise(td->mmap, td->file_size, MADV_SEQUENTIAL) < 0) { | |
1115 | td_verror(td, errno); | |
1116 | return 1; | |
1117 | } | |
1118 | } else { | |
1119 | if (madvise(td->mmap, td->file_size, MADV_RANDOM) < 0) { | |
1120 | td_verror(td, errno); | |
1121 | return 1; | |
1122 | } | |
1123 | } | |
1124 | ||
1125 | return 0; | |
1126 | } | |
1127 | ||
1128 | static int setup_file_plain(struct thread_data *td) | |
1129 | { | |
1130 | if (td->invalidate_cache) { | |
1131 | if (fadvise(td->fd, td->file_offset, td->file_size, POSIX_FADV_DONTNEED) < 0) { | |
1132 | td_verror(td, errno); | |
1133 | return 1; | |
1134 | } | |
1135 | } | |
1136 | ||
1137 | if (td->sequential) { | |
1138 | if (fadvise(td->fd, td->file_offset, td->file_size, POSIX_FADV_SEQUENTIAL) < 0) { | |
1139 | td_verror(td, errno); | |
1140 | return 1; | |
1141 | } | |
1142 | } else { | |
1143 | if (fadvise(td->fd, td->file_offset, td->file_size, POSIX_FADV_RANDOM) < 0) { | |
1144 | td_verror(td, errno); | |
1145 | return 1; | |
1146 | } | |
1147 | } | |
1148 | ||
1149 | return 0; | |
1150 | } | |
1151 | ||
1152 | static int setup_file(struct thread_data *td) | |
1153 | { | |
1154 | struct stat st; | |
1155 | int flags = 0; | |
1156 | ||
1157 | if (stat(td->file_name, &st) == -1) { | |
1158 | if (errno != ENOENT) { | |
1159 | td_verror(td, errno); | |
1160 | return 1; | |
1161 | } | |
1162 | if (!td->create_file) { | |
1163 | td_verror(td, ENOENT); | |
1164 | return 1; | |
1165 | } | |
1166 | if (create_file(td, td->file_size, 0)) | |
1167 | return 1; | |
1168 | } else if (td->filetype == FIO_TYPE_FILE) { | |
6a0106a0 | 1169 | if (st.st_size < (off_t) td->file_size) { |
ebac4655 JA |
1170 | if (create_file(td, td->file_size - st.st_size, 1)) |
1171 | return 1; | |
1172 | } | |
1173 | } | |
1174 | ||
1175 | if (td->odirect) | |
2c0ecd28 | 1176 | flags |= OS_O_DIRECT; |
ebac4655 | 1177 | |
3d60d1ed | 1178 | if (td_write(td) || td_rw(td)) { |
ebac4655 JA |
1179 | if (td->filetype == FIO_TYPE_FILE) { |
1180 | if (!td->overwrite) | |
1181 | flags |= O_TRUNC; | |
1182 | ||
1183 | flags |= O_CREAT; | |
1184 | } | |
1185 | if (td->sync_io) | |
1186 | flags |= O_SYNC; | |
1187 | ||
1188 | flags |= O_RDWR; | |
1189 | ||
1190 | td->fd = open(td->file_name, flags, 0600); | |
3d60d1ed JA |
1191 | } else { |
1192 | if (td->filetype == FIO_TYPE_CHAR) | |
1193 | flags |= O_RDWR; | |
1194 | else | |
1195 | flags |= O_RDONLY; | |
1196 | ||
1197 | td->fd = open(td->file_name, flags); | |
ebac4655 JA |
1198 | } |
1199 | ||
1200 | if (td->fd == -1) { | |
1201 | td_verror(td, errno); | |
1202 | return 1; | |
1203 | } | |
1204 | ||
1205 | if (get_file_size(td)) | |
1206 | return 1; | |
1207 | ||
1208 | if (td->io_engine != FIO_MMAPIO) | |
1209 | return setup_file_plain(td); | |
1210 | else | |
1211 | return setup_file_mmap(td); | |
1212 | } | |
1213 | ||
da86774e JA |
1214 | static int switch_ioscheduler(struct thread_data *td) |
1215 | { | |
1216 | char tmp[256], tmp2[128]; | |
1217 | FILE *f; | |
1218 | int ret; | |
1219 | ||
1220 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); | |
1221 | ||
1222 | f = fopen(tmp, "r+"); | |
1223 | if (!f) { | |
1224 | td_verror(td, errno); | |
1225 | return 1; | |
1226 | } | |
1227 | ||
1228 | /* | |
1229 | * Set io scheduler. | |
1230 | */ | |
1231 | ret = fwrite(td->ioscheduler, strlen(td->ioscheduler), 1, f); | |
1232 | if (ferror(f) || ret != 1) { | |
1233 | td_verror(td, errno); | |
1234 | fclose(f); | |
1235 | return 1; | |
1236 | } | |
1237 | ||
1238 | rewind(f); | |
1239 | ||
1240 | /* | |
1241 | * Read back and check that the selected scheduler is now the default. | |
1242 | */ | |
1243 | ret = fread(tmp, 1, sizeof(tmp), f); | |
1244 | if (ferror(f) || ret < 0) { | |
1245 | td_verror(td, errno); | |
1246 | fclose(f); | |
1247 | return 1; | |
1248 | } | |
1249 | ||
1250 | sprintf(tmp2, "[%s]", td->ioscheduler); | |
1251 | if (!strstr(tmp, tmp2)) { | |
1252 | fprintf(stderr, "fio: io scheduler %s not found\n", td->ioscheduler); | |
1253 | td_verror(td, EINVAL); | |
1254 | fclose(f); | |
1255 | return 1; | |
1256 | } | |
1257 | ||
1258 | fclose(f); | |
1259 | return 0; | |
1260 | } | |
1261 | ||
ebac4655 JA |
1262 | static void clear_io_state(struct thread_data *td) |
1263 | { | |
1264 | if (td->io_engine == FIO_SYNCIO) | |
1265 | lseek(td->fd, SEEK_SET, 0); | |
1266 | ||
20dc95c4 | 1267 | td->last_pos = 0; |
ebac4655 JA |
1268 | td->stat_io_bytes[0] = td->stat_io_bytes[1] = 0; |
1269 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; | |
20dc95c4 | 1270 | td->zone_bytes = 0; |
ebac4655 JA |
1271 | |
1272 | if (td->file_map) | |
1273 | memset(td->file_map, 0, td->num_maps * sizeof(long)); | |
1274 | } | |
1275 | ||
ebac4655 JA |
1276 | static void *thread_main(void *data) |
1277 | { | |
1278 | struct thread_data *td = data; | |
ebac4655 JA |
1279 | |
1280 | if (!td->use_thread) | |
1281 | setsid(); | |
1282 | ||
1283 | td->pid = getpid(); | |
1284 | ||
aea47d44 JA |
1285 | INIT_LIST_HEAD(&td->io_u_freelist); |
1286 | INIT_LIST_HEAD(&td->io_u_busylist); | |
1287 | INIT_LIST_HEAD(&td->io_hist_list); | |
1288 | INIT_LIST_HEAD(&td->io_log_list); | |
1289 | ||
ebac4655 JA |
1290 | if (init_io_u(td)) |
1291 | goto err; | |
1292 | ||
1293 | if (fio_setaffinity(td) == -1) { | |
1294 | td_verror(td, errno); | |
1295 | goto err; | |
1296 | } | |
1297 | ||
1298 | if (init_io(td)) | |
1299 | goto err; | |
1300 | ||
aea47d44 JA |
1301 | if (init_iolog(td)) |
1302 | goto err; | |
1303 | ||
ebac4655 JA |
1304 | if (td->ioprio) { |
1305 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { | |
1306 | td_verror(td, errno); | |
1307 | goto err; | |
1308 | } | |
1309 | } | |
1310 | ||
b6f4d880 JA |
1311 | if (nice(td->nice) < 0) { |
1312 | td_verror(td, errno); | |
1313 | goto err; | |
1314 | } | |
1315 | ||
75154845 JA |
1316 | if (init_random_state(td)) |
1317 | goto err; | |
1318 | ||
da86774e JA |
1319 | if (td->ioscheduler && switch_ioscheduler(td)) |
1320 | goto err; | |
1321 | ||
75154845 | 1322 | td_set_runstate(td, TD_INITIALIZED); |
bbfd6b00 JA |
1323 | fio_sem_up(&startup_sem); |
1324 | fio_sem_down(&td->mutex); | |
ebac4655 JA |
1325 | |
1326 | if (!td->create_serialize && setup_file(td)) | |
1327 | goto err; | |
1328 | ||
ebac4655 JA |
1329 | gettimeofday(&td->epoch, NULL); |
1330 | ||
4e0ba8af JA |
1331 | if (td->exec_prerun) |
1332 | system(td->exec_prerun); | |
1333 | ||
ebac4655 JA |
1334 | while (td->loops--) { |
1335 | getrusage(RUSAGE_SELF, &td->ru_start); | |
1336 | gettimeofday(&td->start, NULL); | |
1337 | memcpy(&td->stat_sample_time, &td->start, sizeof(td->start)); | |
1338 | ||
1339 | if (td->ratemin) | |
1340 | memcpy(&td->lastrate, &td->stat_sample_time, sizeof(td->lastrate)); | |
1341 | ||
1342 | clear_io_state(td); | |
1343 | prune_io_piece_log(td); | |
1344 | ||
1345 | do_io(td); | |
1346 | ||
1347 | td->runtime[td->ddir] += mtime_since_now(&td->start); | |
aea47d44 | 1348 | if (td_rw(td) && td->io_bytes[td->ddir ^ 1]) |
3d60d1ed JA |
1349 | td->runtime[td->ddir ^ 1] = td->runtime[td->ddir]; |
1350 | ||
ebac4655 JA |
1351 | update_rusage_stat(td); |
1352 | ||
1353 | if (td->error || td->terminate) | |
1354 | break; | |
1355 | ||
1356 | if (td->verify == VERIFY_NONE) | |
1357 | continue; | |
1358 | ||
1359 | clear_io_state(td); | |
1360 | gettimeofday(&td->start, NULL); | |
1361 | ||
1362 | do_verify(td); | |
1363 | ||
1364 | td->runtime[DDIR_READ] += mtime_since_now(&td->start); | |
1365 | ||
1366 | if (td->error || td->terminate) | |
1367 | break; | |
1368 | } | |
1369 | ||
ebac4655 JA |
1370 | if (td->bw_log) |
1371 | finish_log(td, td->bw_log, "bw"); | |
1372 | if (td->slat_log) | |
1373 | finish_log(td, td->slat_log, "slat"); | |
1374 | if (td->clat_log) | |
1375 | finish_log(td, td->clat_log, "clat"); | |
843a7413 JA |
1376 | if (td->write_iolog) |
1377 | write_iolog_close(td); | |
4e0ba8af JA |
1378 | if (td->exec_postrun) |
1379 | system(td->exec_postrun); | |
ebac4655 JA |
1380 | |
1381 | if (exitall_on_terminate) | |
1382 | terminate_threads(td->groupid); | |
1383 | ||
1384 | err: | |
1385 | if (td->fd != -1) { | |
1386 | close(td->fd); | |
1387 | td->fd = -1; | |
1388 | } | |
1389 | if (td->mmap) | |
1390 | munmap(td->mmap, td->file_size); | |
1391 | cleanup_io(td); | |
1392 | cleanup_io_u(td); | |
ebac4655 JA |
1393 | td_set_runstate(td, TD_EXITED); |
1394 | return NULL; | |
1395 | ||
1396 | } | |
1397 | ||
1398 | static void *fork_main(int shmid, int offset) | |
1399 | { | |
1400 | struct thread_data *td; | |
1401 | void *data; | |
1402 | ||
1403 | data = shmat(shmid, NULL, 0); | |
1404 | if (data == (void *) -1) { | |
1405 | perror("shmat"); | |
1406 | return NULL; | |
1407 | } | |
1408 | ||
1409 | td = data + offset * sizeof(struct thread_data); | |
1410 | thread_main(td); | |
1411 | shmdt(data); | |
1412 | return NULL; | |
1413 | } | |
1414 | ||
ebac4655 JA |
1415 | static void check_str_update(struct thread_data *td) |
1416 | { | |
1417 | char c = run_str[td->thread_number - 1]; | |
1418 | ||
1419 | if (td->runstate == td->old_runstate) | |
1420 | return; | |
1421 | ||
1422 | switch (td->runstate) { | |
1423 | case TD_REAPED: | |
1424 | c = '_'; | |
1425 | break; | |
1426 | case TD_EXITED: | |
1427 | c = 'E'; | |
1428 | break; | |
1429 | case TD_RUNNING: | |
3d60d1ed JA |
1430 | if (td_rw(td)) { |
1431 | if (td->sequential) | |
1432 | c = 'M'; | |
1433 | else | |
1434 | c = 'm'; | |
1435 | } else if (td_read(td)) { | |
ebac4655 JA |
1436 | if (td->sequential) |
1437 | c = 'R'; | |
1438 | else | |
1439 | c = 'r'; | |
1440 | } else { | |
1441 | if (td->sequential) | |
1442 | c = 'W'; | |
1443 | else | |
1444 | c = 'w'; | |
1445 | } | |
1446 | break; | |
1447 | case TD_VERIFYING: | |
1448 | c = 'V'; | |
1449 | break; | |
1450 | case TD_CREATED: | |
1451 | c = 'C'; | |
1452 | break; | |
75154845 JA |
1453 | case TD_INITIALIZED: |
1454 | c = 'I'; | |
1455 | break; | |
ebac4655 JA |
1456 | case TD_NOT_CREATED: |
1457 | c = 'P'; | |
1458 | break; | |
1459 | default: | |
1460 | printf("state %d\n", td->runstate); | |
1461 | } | |
1462 | ||
1463 | run_str[td->thread_number - 1] = c; | |
1464 | td->old_runstate = td->runstate; | |
1465 | } | |
1466 | ||
5289b847 JA |
1467 | static void eta_to_str(char *str, int eta_sec) |
1468 | { | |
1469 | unsigned int d, h, m, s; | |
1470 | static int always_d, always_h; | |
1471 | ||
1472 | d = h = m = s = 0; | |
1473 | ||
1474 | s = eta_sec % 60; | |
1475 | eta_sec /= 60; | |
1476 | m = eta_sec % 60; | |
1477 | eta_sec /= 60; | |
1478 | h = eta_sec % 24; | |
1479 | eta_sec /= 24; | |
1480 | d = eta_sec; | |
1481 | ||
1482 | if (d || always_d) { | |
1483 | always_d = 1; | |
1484 | str += sprintf(str, "%02dd:", d); | |
1485 | } | |
1486 | if (h || always_h) { | |
1487 | always_h = 1; | |
1488 | str += sprintf(str, "%02dh:", h); | |
1489 | } | |
1490 | ||
1491 | str += sprintf(str, "%02dm:", m); | |
1492 | str += sprintf(str, "%02ds", s); | |
1493 | } | |
1494 | ||
6a0106a0 JA |
1495 | static int thread_eta(struct thread_data *td, unsigned long elapsed) |
1496 | { | |
1497 | unsigned long long bytes_total, bytes_done; | |
1498 | unsigned int eta_sec = 0; | |
1499 | ||
1500 | bytes_total = td->total_io_size; | |
3d60d1ed JA |
1501 | |
1502 | /* | |
1503 | * if writing, bytes_total will be twice the size. If mixing, | |
1504 | * assume a 50/50 split and thus bytes_total will be 50% larger. | |
1505 | */ | |
1506 | if (td->verify) { | |
1507 | if (td_rw(td)) | |
1508 | bytes_total = bytes_total * 3 / 2; | |
1509 | else | |
1510 | bytes_total <<= 1; | |
1511 | } | |
6a0106a0 JA |
1512 | if (td->zone_size && td->zone_skip) |
1513 | bytes_total /= (td->zone_skip / td->zone_size); | |
1514 | ||
1515 | if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING) { | |
1516 | double perc; | |
8b611c34 | 1517 | |
6a0106a0 JA |
1518 | bytes_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE]; |
1519 | perc = (double) bytes_done / (double) bytes_total; | |
1520 | if (perc > 1.0) | |
1521 | perc = 1.0; | |
1522 | ||
1523 | eta_sec = (elapsed * (1.0 / perc)) - elapsed; | |
1524 | ||
8b611c34 | 1525 | if (td->timeout && eta_sec > (td->timeout - elapsed)) |
6a0106a0 | 1526 | eta_sec = td->timeout - elapsed; |
75154845 JA |
1527 | } else if (td->runstate == TD_NOT_CREATED || td->runstate == TD_CREATED |
1528 | || td->runstate == TD_INITIALIZED) { | |
6a0106a0 JA |
1529 | int t_eta = 0, r_eta = 0; |
1530 | ||
1531 | /* | |
1532 | * We can only guess - assume it'll run the full timeout | |
1533 | * if given, otherwise assume it'll run at the specified rate. | |
1534 | */ | |
1535 | if (td->timeout) | |
1536 | t_eta = td->timeout + td->start_delay - elapsed; | |
1537 | if (td->rate) { | |
1538 | r_eta = (bytes_total / 1024) / td->rate; | |
1539 | r_eta += td->start_delay - elapsed; | |
1540 | } | |
1541 | ||
1542 | if (r_eta && t_eta) | |
1543 | eta_sec = min(r_eta, t_eta); | |
1544 | else if (r_eta) | |
1545 | eta_sec = r_eta; | |
1546 | else if (t_eta) | |
1547 | eta_sec = t_eta; | |
1548 | else | |
1549 | eta_sec = INT_MAX; | |
1550 | } else { | |
1551 | /* | |
1552 | * thread is already done | |
1553 | */ | |
1554 | eta_sec = 0; | |
1555 | } | |
1556 | ||
1557 | return eta_sec; | |
1558 | } | |
1559 | ||
ebac4655 JA |
1560 | static void print_thread_status(void) |
1561 | { | |
6a0106a0 JA |
1562 | unsigned long elapsed = time_since_now(&genesis); |
1563 | int i, nr_running, t_rate, m_rate, *eta_secs, eta_sec; | |
5289b847 | 1564 | char eta_str[32]; |
6a0106a0 JA |
1565 | double perc = 0.0; |
1566 | ||
1567 | eta_secs = malloc(thread_number * sizeof(int)); | |
1568 | memset(eta_secs, 0, thread_number * sizeof(int)); | |
ebac4655 | 1569 | |
ebac4655 JA |
1570 | nr_running = t_rate = m_rate = 0; |
1571 | for (i = 0; i < thread_number; i++) { | |
1572 | struct thread_data *td = &threads[i]; | |
1573 | ||
1574 | if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING){ | |
1575 | nr_running++; | |
1576 | t_rate += td->rate; | |
1577 | m_rate += td->ratemin; | |
1578 | } | |
1579 | ||
6a0106a0 JA |
1580 | if (elapsed >= 3) |
1581 | eta_secs[i] = thread_eta(td, elapsed); | |
8b611c34 JA |
1582 | else |
1583 | eta_secs[i] = INT_MAX; | |
ebac4655 JA |
1584 | |
1585 | check_str_update(td); | |
1586 | } | |
1587 | ||
6a0106a0 JA |
1588 | if (exitall_on_terminate) |
1589 | eta_sec = INT_MAX; | |
1590 | else | |
1591 | eta_sec = 0; | |
5289b847 | 1592 | |
6a0106a0 JA |
1593 | for (i = 0; i < thread_number; i++) { |
1594 | if (exitall_on_terminate) { | |
1595 | if (eta_secs[i] < eta_sec) | |
1596 | eta_sec = eta_secs[i]; | |
1597 | } else { | |
1598 | if (eta_secs[i] > eta_sec) | |
1599 | eta_sec = eta_secs[i]; | |
5289b847 | 1600 | } |
6a0106a0 | 1601 | } |
5289b847 | 1602 | |
8b611c34 | 1603 | if (eta_sec != INT_MAX && elapsed) { |
6a0106a0 JA |
1604 | perc = (double) elapsed / (double) (elapsed + eta_sec); |
1605 | eta_to_str(eta_str, eta_sec); | |
ebac4655 JA |
1606 | } |
1607 | ||
5289b847 | 1608 | printf("Threads now running (%d)", nr_running); |
ebac4655 JA |
1609 | if (m_rate || t_rate) |
1610 | printf(", commitrate %d/%dKiB/sec", t_rate, m_rate); | |
8b611c34 | 1611 | if (eta_sec != INT_MAX) { |
6a0106a0 JA |
1612 | perc *= 100.0; |
1613 | printf(": [%s] [%3.2f%% done] [eta %s]", run_str, perc,eta_str); | |
1614 | } | |
5289b847 | 1615 | printf("\r"); |
ebac4655 | 1616 | fflush(stdout); |
6a0106a0 | 1617 | free(eta_secs); |
ebac4655 JA |
1618 | } |
1619 | ||
1620 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) | |
1621 | { | |
1622 | int i; | |
1623 | ||
1624 | /* | |
1625 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
1626 | */ | |
1627 | for (i = 0; i < thread_number; i++) { | |
1628 | struct thread_data *td = &threads[i]; | |
1629 | ||
1630 | if (td->runstate != TD_EXITED) | |
1631 | continue; | |
1632 | ||
1633 | td_set_runstate(td, TD_REAPED); | |
1634 | ||
1635 | if (td->use_thread) { | |
1636 | long ret; | |
1637 | ||
1638 | if (pthread_join(td->thread, (void *) &ret)) | |
1639 | perror("thread_join"); | |
1640 | } else | |
1641 | waitpid(td->pid, NULL, 0); | |
1642 | ||
1643 | (*nr_running)--; | |
1644 | (*m_rate) -= td->ratemin; | |
1645 | (*t_rate) -= td->rate; | |
1646 | } | |
1647 | } | |
1648 | ||
fcb6ade2 JA |
1649 | static void fio_unpin_memory(void *pinned) |
1650 | { | |
1651 | if (pinned) { | |
1652 | if (munlock(pinned, mlock_size) < 0) | |
1653 | perror("munlock"); | |
1654 | munmap(pinned, mlock_size); | |
1655 | } | |
1656 | } | |
1657 | ||
1658 | static void *fio_pin_memory(void) | |
1659 | { | |
32cd46a0 | 1660 | unsigned long long phys_mem; |
fcb6ade2 JA |
1661 | void *ptr; |
1662 | ||
1663 | if (!mlock_size) | |
1664 | return NULL; | |
1665 | ||
1666 | /* | |
1667 | * Don't allow mlock of more than real_mem-128MB | |
1668 | */ | |
32cd46a0 JA |
1669 | phys_mem = os_phys_mem(); |
1670 | if (phys_mem) { | |
1671 | if ((mlock_size + 128 * 1024 * 1024) > phys_mem) { | |
1672 | mlock_size = phys_mem - 128 * 1024 * 1024; | |
fcb6ade2 JA |
1673 | printf("fio: limiting mlocked memory to %lluMiB\n", |
1674 | mlock_size >> 20); | |
1675 | } | |
1676 | } | |
1677 | ||
1678 | ptr = mmap(NULL, mlock_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | OS_MAP_ANON, 0, 0); | |
1679 | if (!ptr) { | |
1680 | perror("malloc locked mem"); | |
1681 | return NULL; | |
1682 | } | |
1683 | if (mlock(ptr, mlock_size) < 0) { | |
1684 | munmap(ptr, mlock_size); | |
1685 | perror("mlock"); | |
1686 | return NULL; | |
1687 | } | |
1688 | ||
1689 | return ptr; | |
1690 | } | |
1691 | ||
ebac4655 JA |
1692 | static void run_threads(void) |
1693 | { | |
ebac4655 JA |
1694 | struct thread_data *td; |
1695 | unsigned long spent; | |
1696 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 JA |
1697 | void *mlocked_mem; |
1698 | ||
1699 | mlocked_mem = fio_pin_memory(); | |
ebac4655 JA |
1700 | |
1701 | printf("Starting %d thread%s\n", thread_number, thread_number > 1 ? "s" : ""); | |
fcb6ade2 | 1702 | fflush(stdout); |
c04f7ec3 | 1703 | |
4efa970e JA |
1704 | signal(SIGINT, sig_handler); |
1705 | signal(SIGALRM, sig_handler); | |
1706 | ||
ebac4655 JA |
1707 | todo = thread_number; |
1708 | nr_running = 0; | |
1709 | nr_started = 0; | |
1710 | m_rate = t_rate = 0; | |
1711 | ||
1712 | for (i = 0; i < thread_number; i++) { | |
1713 | td = &threads[i]; | |
1714 | ||
1715 | run_str[td->thread_number - 1] = 'P'; | |
1716 | ||
1717 | init_disk_util(td); | |
1718 | ||
1719 | if (!td->create_serialize) | |
1720 | continue; | |
1721 | ||
1722 | /* | |
1723 | * do file setup here so it happens sequentially, | |
1724 | * we don't want X number of threads getting their | |
1725 | * client data interspersed on disk | |
1726 | */ | |
1727 | if (setup_file(td)) { | |
1728 | td_set_runstate(td, TD_REAPED); | |
1729 | todo--; | |
1730 | } | |
1731 | } | |
1732 | ||
1733 | gettimeofday(&genesis, NULL); | |
1734 | ||
1735 | while (todo) { | |
75154845 JA |
1736 | struct thread_data *map[MAX_JOBS]; |
1737 | struct timeval this_start; | |
1738 | int this_jobs = 0, left; | |
1739 | ||
ebac4655 JA |
1740 | /* |
1741 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
1742 | */ | |
1743 | for (i = 0; i < thread_number; i++) { | |
1744 | td = &threads[i]; | |
1745 | ||
1746 | if (td->runstate != TD_NOT_CREATED) | |
1747 | continue; | |
1748 | ||
1749 | /* | |
1750 | * never got a chance to start, killed by other | |
1751 | * thread for some reason | |
1752 | */ | |
1753 | if (td->terminate) { | |
1754 | todo--; | |
1755 | continue; | |
1756 | } | |
1757 | ||
1758 | if (td->start_delay) { | |
1759 | spent = mtime_since_now(&genesis); | |
1760 | ||
1761 | if (td->start_delay * 1000 > spent) | |
1762 | continue; | |
1763 | } | |
1764 | ||
1765 | if (td->stonewall && (nr_started || nr_running)) | |
1766 | break; | |
1767 | ||
75154845 JA |
1768 | /* |
1769 | * Set state to created. Thread will transition | |
1770 | * to TD_INITIALIZED when it's done setting up. | |
1771 | */ | |
ebac4655 | 1772 | td_set_runstate(td, TD_CREATED); |
75154845 | 1773 | map[this_jobs++] = td; |
bbfd6b00 | 1774 | fio_sem_init(&startup_sem, 1); |
ebac4655 JA |
1775 | nr_started++; |
1776 | ||
1777 | if (td->use_thread) { | |
1778 | if (pthread_create(&td->thread, NULL, thread_main, td)) { | |
1779 | perror("thread_create"); | |
1780 | nr_started--; | |
1781 | } | |
1782 | } else { | |
1783 | if (fork()) | |
bbfd6b00 | 1784 | fio_sem_down(&startup_sem); |
ebac4655 JA |
1785 | else { |
1786 | fork_main(shm_id, i); | |
1787 | exit(0); | |
1788 | } | |
1789 | } | |
1790 | } | |
1791 | ||
1792 | /* | |
75154845 JA |
1793 | * Wait for the started threads to transition to |
1794 | * TD_INITIALIZED. | |
ebac4655 | 1795 | */ |
75154845 JA |
1796 | printf("fio: Waiting for threads to initialize...\n"); |
1797 | gettimeofday(&this_start, NULL); | |
1798 | left = this_jobs; | |
1799 | while (left) { | |
1800 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) | |
1801 | break; | |
1802 | ||
1803 | usleep(100000); | |
1804 | ||
1805 | for (i = 0; i < this_jobs; i++) { | |
1806 | td = map[i]; | |
1807 | if (!td) | |
1808 | continue; | |
b6f4d880 | 1809 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
1810 | map[i] = NULL; |
1811 | left--; | |
b6f4d880 JA |
1812 | } else if (td->runstate >= TD_EXITED) { |
1813 | map[i] = NULL; | |
1814 | left--; | |
1815 | todo--; | |
1816 | nr_running++; /* work-around... */ | |
75154845 JA |
1817 | } |
1818 | } | |
1819 | } | |
1820 | ||
1821 | if (left) { | |
1822 | fprintf(stderr, "fio: %d jobs failed to start\n", left); | |
1823 | for (i = 0; i < this_jobs; i++) { | |
1824 | td = map[i]; | |
1825 | if (!td) | |
1826 | continue; | |
1827 | kill(td->pid, SIGTERM); | |
1828 | } | |
1829 | break; | |
1830 | } | |
1831 | ||
1832 | /* | |
b6f4d880 | 1833 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 JA |
1834 | */ |
1835 | printf("fio: Go for launch\n"); | |
ebac4655 JA |
1836 | for (i = 0; i < thread_number; i++) { |
1837 | td = &threads[i]; | |
1838 | ||
75154845 | 1839 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
1840 | continue; |
1841 | ||
1842 | td_set_runstate(td, TD_RUNNING); | |
1843 | nr_running++; | |
1844 | nr_started--; | |
1845 | m_rate += td->ratemin; | |
1846 | t_rate += td->rate; | |
75154845 | 1847 | todo--; |
bbfd6b00 | 1848 | fio_sem_up(&td->mutex); |
ebac4655 JA |
1849 | } |
1850 | ||
1851 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1852 | ||
1853 | if (todo) | |
1854 | usleep(100000); | |
1855 | } | |
1856 | ||
1857 | while (nr_running) { | |
1858 | reap_threads(&nr_running, &t_rate, &m_rate); | |
1859 | usleep(10000); | |
1860 | } | |
1861 | ||
1862 | update_io_ticks(); | |
fcb6ade2 | 1863 | fio_unpin_memory(mlocked_mem); |
ebac4655 JA |
1864 | } |
1865 | ||
ebac4655 JA |
1866 | int main(int argc, char *argv[]) |
1867 | { | |
1868 | if (parse_options(argc, argv)) | |
1869 | return 1; | |
1870 | ||
1871 | if (!thread_number) { | |
1872 | printf("Nothing to do\n"); | |
1873 | return 1; | |
1874 | } | |
1875 | ||
1876 | disk_util_timer_arm(); | |
1877 | ||
1878 | run_threads(); | |
1879 | show_run_stats(); | |
1880 | ||
1881 | return 0; | |
1882 | } |