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 | */ | |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <unistd.h> | |
24 | #include <fcntl.h> | |
25 | #include <string.h> | |
26 | #include <errno.h> | |
27 | #include <signal.h> | |
28 | #include <time.h> | |
29 | #include <math.h> | |
30 | #include <assert.h> | |
31 | #include <dirent.h> | |
32 | #include <libgen.h> | |
33 | #include <sys/types.h> | |
34 | #include <sys/stat.h> | |
35 | #include <sys/wait.h> | |
36 | #include <sys/ipc.h> | |
37 | #include <sys/shm.h> | |
38 | #include <sys/ioctl.h> | |
39 | #include <sys/mman.h> | |
40 | ||
41 | #include "fio.h" | |
42 | #include "os.h" | |
43 | ||
44 | #define MASK (4095) | |
45 | ||
46 | #define ALIGN(buf) (char *) (((unsigned long) (buf) + MASK) & ~(MASK)) | |
47 | ||
48 | int groupid = 0; | |
49 | int thread_number = 0; | |
50 | static char run_str[MAX_JOBS + 1]; | |
51 | int shm_id = 0; | |
52 | static LIST_HEAD(disk_list); | |
53 | static struct itimerval itimer; | |
5289b847 | 54 | static struct timeval genesis; |
ebac4655 JA |
55 | |
56 | static void update_io_ticks(void); | |
57 | static void disk_util_timer_arm(void); | |
58 | static void print_thread_status(void); | |
59 | ||
c04f7ec3 JA |
60 | extern unsigned long long mlock_size; |
61 | ||
ebac4655 JA |
62 | /* |
63 | * thread life cycle | |
64 | */ | |
65 | enum { | |
66 | TD_NOT_CREATED = 0, | |
67 | TD_CREATED, | |
75154845 | 68 | TD_INITIALIZED, |
ebac4655 JA |
69 | TD_RUNNING, |
70 | TD_VERIFYING, | |
71 | TD_EXITED, | |
72 | TD_REAPED, | |
73 | }; | |
74 | ||
3d60d1ed | 75 | #define should_fsync(td) ((td_write(td) || td_rw(td)) && (!(td)->odirect || (td)->override_sync)) |
ebac4655 JA |
76 | |
77 | static sem_t startup_sem; | |
78 | ||
79 | #define TERMINATE_ALL (-1) | |
75154845 | 80 | #define JOB_START_TIMEOUT (5 * 1000) |
ebac4655 JA |
81 | |
82 | static void terminate_threads(int group_id) | |
83 | { | |
84 | int i; | |
85 | ||
86 | for (i = 0; i < thread_number; i++) { | |
87 | struct thread_data *td = &threads[i]; | |
88 | ||
89 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { | |
90 | td->terminate = 1; | |
91 | td->start_delay = 0; | |
92 | } | |
93 | } | |
94 | } | |
95 | ||
96 | static void sig_handler(int sig) | |
97 | { | |
98 | switch (sig) { | |
99 | case SIGALRM: | |
100 | update_io_ticks(); | |
101 | disk_util_timer_arm(); | |
102 | print_thread_status(); | |
103 | break; | |
104 | default: | |
105 | printf("\nfio: terminating on signal\n"); | |
106 | fflush(stdout); | |
107 | terminate_threads(TERMINATE_ALL); | |
108 | break; | |
109 | } | |
110 | } | |
111 | ||
112 | static unsigned long utime_since(struct timeval *s, struct timeval *e) | |
113 | { | |
114 | double sec, usec; | |
115 | ||
116 | sec = e->tv_sec - s->tv_sec; | |
117 | usec = e->tv_usec - s->tv_usec; | |
118 | if (sec > 0 && usec < 0) { | |
119 | sec--; | |
120 | usec += 1000000; | |
121 | } | |
122 | ||
123 | sec *= (double) 1000000; | |
124 | ||
125 | return sec + usec; | |
126 | } | |
127 | ||
128 | static unsigned long utime_since_now(struct timeval *s) | |
129 | { | |
130 | struct timeval t; | |
131 | ||
132 | gettimeofday(&t, NULL); | |
133 | return utime_since(s, &t); | |
134 | } | |
135 | ||
136 | static unsigned long mtime_since(struct timeval *s, struct timeval *e) | |
137 | { | |
138 | double sec, usec; | |
139 | ||
140 | sec = e->tv_sec - s->tv_sec; | |
141 | usec = e->tv_usec - s->tv_usec; | |
142 | if (sec > 0 && usec < 0) { | |
143 | sec--; | |
144 | usec += 1000000; | |
145 | } | |
146 | ||
147 | sec *= (double) 1000; | |
148 | usec /= (double) 1000; | |
149 | ||
150 | return sec + usec; | |
151 | } | |
152 | ||
153 | static unsigned long mtime_since_now(struct timeval *s) | |
154 | { | |
155 | struct timeval t; | |
156 | ||
157 | gettimeofday(&t, NULL); | |
158 | return mtime_since(s, &t); | |
159 | } | |
160 | ||
161 | static inline unsigned long msec_now(struct timeval *s) | |
162 | { | |
163 | return s->tv_sec * 1000 + s->tv_usec / 1000; | |
164 | } | |
165 | ||
5289b847 JA |
166 | static unsigned long time_since_now(struct timeval *s) |
167 | { | |
168 | return mtime_since_now(s) / 1000; | |
169 | } | |
170 | ||
ebac4655 JA |
171 | static int random_map_free(struct thread_data *td, unsigned long long block) |
172 | { | |
173 | unsigned int idx = RAND_MAP_IDX(td, block); | |
174 | unsigned int bit = RAND_MAP_BIT(td, block); | |
175 | ||
176 | return (td->file_map[idx] & (1UL << bit)) == 0; | |
177 | } | |
178 | ||
179 | static int get_next_free_block(struct thread_data *td, unsigned long long *b) | |
180 | { | |
181 | int i; | |
182 | ||
183 | *b = 0; | |
184 | i = 0; | |
185 | while ((*b) * td->min_bs < td->io_size) { | |
186 | if (td->file_map[i] != -1UL) { | |
187 | *b += ffz(td->file_map[i]); | |
188 | return 0; | |
189 | } | |
190 | ||
191 | *b += BLOCKS_PER_MAP; | |
192 | i++; | |
193 | } | |
194 | ||
195 | return 1; | |
196 | } | |
197 | ||
198 | static void mark_random_map(struct thread_data *td, struct io_u *io_u) | |
199 | { | |
200bc855 | 200 | unsigned long long block = io_u->offset / (unsigned long long) td->min_bs; |
ebac4655 JA |
201 | unsigned int blocks = 0; |
202 | ||
203 | while (blocks < (io_u->buflen / td->min_bs)) { | |
204 | unsigned int idx, bit; | |
205 | ||
206 | if (!random_map_free(td, block)) | |
207 | break; | |
208 | ||
209 | idx = RAND_MAP_IDX(td, block); | |
210 | bit = RAND_MAP_BIT(td, block); | |
211 | ||
212 | assert(idx < td->num_maps); | |
213 | ||
214 | td->file_map[idx] |= (1UL << bit); | |
215 | block++; | |
216 | blocks++; | |
217 | } | |
218 | ||
219 | if ((blocks * td->min_bs) < io_u->buflen) | |
220 | io_u->buflen = blocks * td->min_bs; | |
221 | } | |
222 | ||
ebac4655 JA |
223 | static inline void add_stat_sample(struct io_stat *is, unsigned long val) |
224 | { | |
225 | if (val > is->max_val) | |
226 | is->max_val = val; | |
227 | if (val < is->min_val) | |
228 | is->min_val = val; | |
229 | ||
230 | is->val += val; | |
231 | is->val_sq += val * val; | |
232 | is->samples++; | |
233 | } | |
234 | ||
235 | static void add_log_sample(struct thread_data *td, struct io_log *iolog, | |
236 | unsigned long val, int ddir) | |
237 | { | |
238 | if (iolog->nr_samples == iolog->max_samples) { | |
239 | int new_size = sizeof(struct io_sample) * iolog->max_samples*2; | |
240 | ||
241 | iolog->log = realloc(iolog->log, new_size); | |
242 | iolog->max_samples <<= 1; | |
243 | } | |
244 | ||
245 | iolog->log[iolog->nr_samples].val = val; | |
246 | iolog->log[iolog->nr_samples].time = mtime_since_now(&td->epoch); | |
247 | iolog->log[iolog->nr_samples].ddir = ddir; | |
248 | iolog->nr_samples++; | |
249 | } | |
250 | ||
251 | static void add_clat_sample(struct thread_data *td, int ddir,unsigned long msec) | |
252 | { | |
253 | add_stat_sample(&td->clat_stat[ddir], msec); | |
254 | ||
255 | if (td->clat_log) | |
256 | add_log_sample(td, td->clat_log, msec, ddir); | |
257 | } | |
258 | ||
259 | static void add_slat_sample(struct thread_data *td, int ddir,unsigned long msec) | |
260 | { | |
261 | add_stat_sample(&td->slat_stat[ddir], msec); | |
262 | ||
263 | if (td->slat_log) | |
264 | add_log_sample(td, td->slat_log, msec, ddir); | |
265 | } | |
266 | ||
267 | static void add_bw_sample(struct thread_data *td, int ddir) | |
268 | { | |
269 | unsigned long spent = mtime_since_now(&td->stat_sample_time[ddir]); | |
270 | unsigned long rate; | |
271 | ||
272 | if (spent < td->bw_avg_time) | |
273 | return; | |
274 | ||
275 | rate = (td->this_io_bytes[ddir] - td->stat_io_bytes[ddir]) / spent; | |
276 | add_stat_sample(&td->bw_stat[ddir], rate); | |
277 | ||
278 | if (td->bw_log) | |
279 | add_log_sample(td, td->bw_log, rate, ddir); | |
280 | ||
281 | gettimeofday(&td->stat_sample_time[ddir], NULL); | |
282 | td->stat_io_bytes[ddir] = td->this_io_bytes[ddir]; | |
283 | } | |
284 | ||
20dc95c4 JA |
285 | static int get_next_offset(struct thread_data *td, unsigned long long *offset) |
286 | { | |
287 | unsigned long long b, rb; | |
288 | long r; | |
289 | ||
290 | if (!td->sequential) { | |
085227ad | 291 | unsigned long long max_blocks = td->io_size / td->min_bs; |
20dc95c4 JA |
292 | int loops = 50; |
293 | ||
294 | do { | |
295 | lrand48_r(&td->random_state, &r); | |
085227ad | 296 | b = ((max_blocks - 1) * r / (unsigned long long) (RAND_MAX+1.0)); |
20dc95c4 JA |
297 | rb = b + (td->file_offset / td->min_bs); |
298 | loops--; | |
299 | } while (!random_map_free(td, rb) && loops); | |
300 | ||
301 | if (!loops) { | |
302 | if (get_next_free_block(td, &b)) | |
303 | return 1; | |
304 | } | |
305 | } else | |
306 | b = td->last_pos / td->min_bs; | |
307 | ||
308 | *offset = (b * td->min_bs) + td->file_offset; | |
838a3cd3 | 309 | if (*offset > td->real_file_size) |
20dc95c4 JA |
310 | return 1; |
311 | ||
312 | return 0; | |
313 | } | |
314 | ||
315 | static unsigned int get_next_buflen(struct thread_data *td) | |
316 | { | |
317 | unsigned int buflen; | |
318 | long r; | |
319 | ||
320 | if (td->min_bs == td->max_bs) | |
321 | buflen = td->min_bs; | |
322 | else { | |
323 | lrand48_r(&td->bsrange_state, &r); | |
324 | buflen = (1 + (double) (td->max_bs - 1) * r / (RAND_MAX + 1.0)); | |
325 | buflen = (buflen + td->min_bs - 1) & ~(td->min_bs - 1); | |
326 | } | |
327 | ||
328 | if (buflen > td->io_size - td->this_io_bytes[td->ddir]) | |
329 | buflen = td->io_size - td->this_io_bytes[td->ddir]; | |
330 | ||
331 | return buflen; | |
332 | } | |
333 | ||
ebac4655 JA |
334 | /* |
335 | * busy looping version for the last few usec | |
336 | */ | |
337 | static void __usec_sleep(unsigned int usec) | |
338 | { | |
339 | struct timeval start; | |
340 | ||
341 | gettimeofday(&start, NULL); | |
342 | while (utime_since_now(&start) < usec) | |
343 | nop; | |
344 | } | |
345 | ||
346 | static void usec_sleep(struct thread_data *td, unsigned long usec) | |
347 | { | |
348 | struct timespec req, rem; | |
349 | ||
350 | req.tv_sec = usec / 1000000; | |
351 | req.tv_nsec = usec * 1000 - req.tv_sec * 1000000; | |
352 | ||
353 | do { | |
354 | if (usec < 5000) { | |
355 | __usec_sleep(usec); | |
356 | break; | |
357 | } | |
358 | ||
359 | rem.tv_sec = rem.tv_nsec = 0; | |
360 | if (nanosleep(&req, &rem) < 0) | |
361 | break; | |
362 | ||
363 | if ((rem.tv_sec + rem.tv_nsec) == 0) | |
364 | break; | |
365 | ||
366 | req.tv_nsec = rem.tv_nsec; | |
367 | req.tv_sec = rem.tv_sec; | |
368 | ||
369 | usec = rem.tv_sec * 1000000 + rem.tv_nsec / 1000; | |
370 | } while (!td->terminate); | |
371 | } | |
372 | ||
373 | static void rate_throttle(struct thread_data *td, unsigned long time_spent, | |
374 | unsigned int bytes) | |
375 | { | |
376 | unsigned long usec_cycle; | |
377 | ||
378 | if (!td->rate) | |
379 | return; | |
380 | ||
381 | usec_cycle = td->rate_usec_cycle * (bytes / td->min_bs); | |
382 | ||
383 | if (time_spent < usec_cycle) { | |
384 | unsigned long s = usec_cycle - time_spent; | |
385 | ||
386 | td->rate_pending_usleep += s; | |
387 | if (td->rate_pending_usleep >= 100000) { | |
388 | usec_sleep(td, td->rate_pending_usleep); | |
389 | td->rate_pending_usleep = 0; | |
390 | } | |
391 | } else { | |
392 | long overtime = time_spent - usec_cycle; | |
393 | ||
394 | td->rate_pending_usleep -= overtime; | |
395 | } | |
396 | } | |
397 | ||
398 | static int check_min_rate(struct thread_data *td, struct timeval *now) | |
399 | { | |
400 | unsigned long spent; | |
401 | unsigned long rate; | |
402 | int ddir = td->ddir; | |
403 | ||
404 | /* | |
405 | * allow a 2 second settle period in the beginning | |
406 | */ | |
407 | if (mtime_since(&td->start, now) < 2000) | |
408 | return 0; | |
409 | ||
410 | /* | |
411 | * if rate blocks is set, sample is running | |
412 | */ | |
413 | if (td->rate_bytes) { | |
414 | spent = mtime_since(&td->lastrate, now); | |
415 | if (spent < td->ratecycle) | |
416 | return 0; | |
417 | ||
418 | rate = (td->this_io_bytes[ddir] - td->rate_bytes) / spent; | |
419 | if (rate < td->ratemin) { | |
420 | printf("Client%d: min rate %d not met, got %ldKiB/sec\n", td->thread_number, td->ratemin, rate); | |
421 | if (rate_quit) | |
422 | terminate_threads(td->groupid); | |
423 | return 1; | |
424 | } | |
425 | } | |
426 | ||
427 | td->rate_bytes = td->this_io_bytes[ddir]; | |
428 | memcpy(&td->lastrate, now, sizeof(*now)); | |
429 | return 0; | |
430 | } | |
431 | ||
432 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
433 | { | |
434 | if (!td->timeout) | |
435 | return 0; | |
436 | if (mtime_since(&td->epoch, t) >= td->timeout * 1000) | |
437 | return 1; | |
438 | ||
439 | return 0; | |
440 | } | |
441 | ||
442 | static void fill_random_bytes(struct thread_data *td, | |
443 | unsigned char *p, unsigned int len) | |
444 | { | |
445 | unsigned int todo; | |
446 | double r; | |
447 | ||
448 | while (len) { | |
449 | drand48_r(&td->verify_state, &r); | |
450 | ||
451 | /* | |
452 | * lrand48_r seems to be broken and only fill the bottom | |
453 | * 32-bits, even on 64-bit archs with 64-bit longs | |
454 | */ | |
455 | todo = sizeof(r); | |
456 | if (todo > len) | |
457 | todo = len; | |
458 | ||
459 | memcpy(p, &r, todo); | |
460 | ||
461 | len -= todo; | |
462 | p += todo; | |
463 | } | |
464 | } | |
465 | ||
466 | static void hexdump(void *buffer, int len) | |
467 | { | |
468 | unsigned char *p = buffer; | |
469 | int i; | |
470 | ||
471 | for (i = 0; i < len; i++) | |
472 | printf("%02x", p[i]); | |
473 | printf("\n"); | |
474 | } | |
475 | ||
476 | static int verify_io_u_crc32(struct verify_header *hdr, struct io_u *io_u) | |
477 | { | |
478 | unsigned char *p = (unsigned char *) io_u->buf; | |
479 | unsigned long c; | |
480 | int ret; | |
481 | ||
482 | p += sizeof(*hdr); | |
483 | c = crc32(p, hdr->len - sizeof(*hdr)); | |
484 | ret = c != hdr->crc32; | |
485 | ||
486 | if (ret) { | |
487 | fprintf(stderr, "crc32: verify failed at %llu/%u\n", io_u->offset, io_u->buflen); | |
488 | fprintf(stderr, "crc32: wanted %lx, got %lx\n", hdr->crc32, c); | |
489 | } | |
490 | ||
491 | return ret; | |
492 | } | |
493 | ||
494 | static int verify_io_u_md5(struct verify_header *hdr, struct io_u *io_u) | |
495 | { | |
496 | unsigned char *p = (unsigned char *) io_u->buf; | |
497 | struct md5_ctx md5_ctx; | |
498 | int ret; | |
499 | ||
500 | memset(&md5_ctx, 0, sizeof(md5_ctx)); | |
501 | p += sizeof(*hdr); | |
502 | md5_update(&md5_ctx, p, hdr->len - sizeof(*hdr)); | |
503 | ||
504 | ret = memcmp(hdr->md5_digest, md5_ctx.hash, sizeof(md5_ctx.hash)); | |
505 | if (ret) { | |
506 | fprintf(stderr, "md5: verify failed at %llu/%u\n", io_u->offset, io_u->buflen); | |
507 | hexdump(hdr->md5_digest, sizeof(hdr->md5_digest)); | |
508 | hexdump(md5_ctx.hash, sizeof(md5_ctx.hash)); | |
509 | } | |
510 | ||
511 | return ret; | |
512 | } | |
513 | ||
514 | static int verify_io_u(struct io_u *io_u) | |
515 | { | |
516 | struct verify_header *hdr = (struct verify_header *) io_u->buf; | |
517 | int ret; | |
518 | ||
519 | if (hdr->fio_magic != FIO_HDR_MAGIC) | |
520 | return 1; | |
521 | ||
522 | if (hdr->verify_type == VERIFY_MD5) | |
523 | ret = verify_io_u_md5(hdr, io_u); | |
524 | else if (hdr->verify_type == VERIFY_CRC32) | |
525 | ret = verify_io_u_crc32(hdr, io_u); | |
526 | else { | |
527 | fprintf(stderr, "Bad verify type %d\n", hdr->verify_type); | |
528 | ret = 1; | |
529 | } | |
530 | ||
531 | return ret; | |
532 | } | |
533 | ||
534 | static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len) | |
535 | { | |
536 | hdr->crc32 = crc32(p, len); | |
537 | } | |
538 | ||
539 | static void fill_md5(struct verify_header *hdr, void *p, unsigned int len) | |
540 | { | |
541 | struct md5_ctx md5_ctx; | |
542 | ||
543 | memset(&md5_ctx, 0, sizeof(md5_ctx)); | |
544 | md5_update(&md5_ctx, p, len); | |
545 | memcpy(hdr->md5_digest, md5_ctx.hash, sizeof(md5_ctx.hash)); | |
546 | } | |
547 | ||
a6ccc7be | 548 | static int get_rw_ddir(struct thread_data *td) |
3d60d1ed | 549 | { |
a6ccc7be JA |
550 | if (td_rw(td)) { |
551 | struct timeval now; | |
552 | unsigned long elapsed; | |
3d60d1ed | 553 | |
a6ccc7be JA |
554 | gettimeofday(&now, NULL); |
555 | elapsed = mtime_since_now(&td->rwmix_switch); | |
3d60d1ed | 556 | |
a6ccc7be JA |
557 | /* |
558 | * Check if it's time to seed a new data direction. | |
559 | */ | |
560 | if (elapsed >= td->rwmixcycle) { | |
561 | unsigned long v; | |
562 | long r; | |
3d60d1ed | 563 | |
a6ccc7be JA |
564 | lrand48_r(&td->random_state, &r); |
565 | v = 100UL * r / (unsigned long) (RAND_MAX + 1.0); | |
566 | if (v < td->rwmixread) | |
567 | td->rwmix_ddir = DDIR_READ; | |
568 | else | |
569 | td->rwmix_ddir = DDIR_WRITE; | |
570 | memcpy(&td->rwmix_switch, &now, sizeof(now)); | |
571 | } | |
572 | return td->rwmix_ddir; | |
573 | } else if (td_read(td)) | |
3d60d1ed JA |
574 | return DDIR_READ; |
575 | else | |
576 | return DDIR_WRITE; | |
577 | } | |
578 | ||
ebac4655 JA |
579 | /* |
580 | * fill body of io_u->buf with random data and add a header with the | |
581 | * (eg) sha1sum of that data. | |
582 | */ | |
583 | static void populate_io_u(struct thread_data *td, struct io_u *io_u) | |
584 | { | |
585 | unsigned char *p = (unsigned char *) io_u->buf; | |
586 | struct verify_header hdr; | |
587 | ||
588 | hdr.fio_magic = FIO_HDR_MAGIC; | |
589 | hdr.len = io_u->buflen; | |
590 | p += sizeof(hdr); | |
591 | fill_random_bytes(td, p, io_u->buflen - sizeof(hdr)); | |
592 | ||
593 | if (td->verify == VERIFY_MD5) { | |
594 | fill_md5(&hdr, p, io_u->buflen - sizeof(hdr)); | |
595 | hdr.verify_type = VERIFY_MD5; | |
596 | } else { | |
597 | fill_crc32(&hdr, p, io_u->buflen - sizeof(hdr)); | |
598 | hdr.verify_type = VERIFY_CRC32; | |
599 | } | |
600 | ||
601 | memcpy(io_u->buf, &hdr, sizeof(hdr)); | |
602 | } | |
603 | ||
aea47d44 | 604 | static int td_io_prep(struct thread_data *td, struct io_u *io_u) |
20dc95c4 | 605 | { |
20dc95c4 JA |
606 | if (td->io_prep && td->io_prep(td, io_u)) |
607 | return 1; | |
608 | ||
609 | return 0; | |
610 | } | |
611 | ||
b1ff3403 | 612 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
ebac4655 JA |
613 | { |
614 | list_del(&io_u->list); | |
615 | list_add(&io_u->list, &td->io_u_freelist); | |
616 | td->cur_depth--; | |
617 | } | |
618 | ||
843a7413 | 619 | static void write_iolog_put(struct thread_data *td, struct io_u *io_u) |
aea47d44 | 620 | { |
843a7413 JA |
621 | fprintf(td->iolog_f, "%d,%llu,%u\n", io_u->ddir, io_u->offset, io_u->buflen); |
622 | } | |
aea47d44 | 623 | |
843a7413 JA |
624 | static int read_iolog_get(struct thread_data *td, struct io_u *io_u) |
625 | { | |
626 | struct io_piece *ipo; | |
aea47d44 | 627 | |
843a7413 | 628 | if (!list_empty(&td->io_log_list)) { |
aea47d44 JA |
629 | ipo = list_entry(td->io_log_list.next, struct io_piece, list); |
630 | list_del(&ipo->list); | |
631 | io_u->offset = ipo->offset; | |
632 | io_u->buflen = ipo->len; | |
633 | io_u->ddir = ipo->ddir; | |
634 | free(ipo); | |
635 | return 0; | |
636 | } | |
637 | ||
843a7413 JA |
638 | return 1; |
639 | } | |
640 | ||
641 | static int fill_io_u(struct thread_data *td, struct io_u *io_u) | |
642 | { | |
643 | /* | |
644 | * If using an iolog, grab next piece if any available. | |
645 | */ | |
646 | if (td->read_iolog) | |
647 | return read_iolog_get(td, io_u); | |
648 | ||
aea47d44 JA |
649 | /* |
650 | * No log, let the seq/rand engine retrieve the next position. | |
651 | */ | |
652 | if (!get_next_offset(td, &io_u->offset)) { | |
653 | io_u->buflen = get_next_buflen(td); | |
654 | ||
655 | if (io_u->buflen) { | |
656 | io_u->ddir = get_rw_ddir(td); | |
843a7413 JA |
657 | |
658 | /* | |
659 | * If using a write iolog, store this entry. | |
660 | */ | |
661 | if (td->write_iolog) | |
662 | write_iolog_put(td, io_u); | |
663 | ||
aea47d44 JA |
664 | return 0; |
665 | } | |
666 | } | |
667 | ||
668 | return 1; | |
669 | } | |
670 | ||
ebac4655 JA |
671 | #define queue_full(td) (list_empty(&(td)->io_u_freelist)) |
672 | ||
b1ff3403 | 673 | struct io_u *__get_io_u(struct thread_data *td) |
ebac4655 JA |
674 | { |
675 | struct io_u *io_u; | |
676 | ||
677 | if (queue_full(td)) | |
678 | return NULL; | |
679 | ||
680 | io_u = list_entry(td->io_u_freelist.next, struct io_u, list); | |
681 | io_u->error = 0; | |
682 | io_u->resid = 0; | |
683 | list_del(&io_u->list); | |
684 | list_add(&io_u->list, &td->io_u_busylist); | |
685 | td->cur_depth++; | |
686 | return io_u; | |
687 | } | |
688 | ||
ebac4655 JA |
689 | static struct io_u *get_io_u(struct thread_data *td) |
690 | { | |
691 | struct io_u *io_u; | |
692 | ||
693 | io_u = __get_io_u(td); | |
694 | if (!io_u) | |
695 | return NULL; | |
696 | ||
20dc95c4 JA |
697 | if (td->zone_bytes >= td->zone_size) { |
698 | td->zone_bytes = 0; | |
699 | td->last_pos += td->zone_skip; | |
700 | } | |
701 | ||
aea47d44 | 702 | if (fill_io_u(td, io_u)) { |
ebac4655 JA |
703 | put_io_u(td, io_u); |
704 | return NULL; | |
705 | } | |
706 | ||
838a3cd3 JA |
707 | if (io_u->buflen + io_u->offset > td->real_file_size) |
708 | io_u->buflen = td->real_file_size - io_u->offset; | |
ebac4655 JA |
709 | |
710 | if (!io_u->buflen) { | |
711 | put_io_u(td, io_u); | |
712 | return NULL; | |
713 | } | |
714 | ||
843a7413 | 715 | if (!td->read_iolog && !td->sequential) |
ebac4655 JA |
716 | mark_random_map(td, io_u); |
717 | ||
20dc95c4 | 718 | td->last_pos += io_u->buflen; |
ebac4655 JA |
719 | |
720 | if (td->verify != VERIFY_NONE) | |
721 | populate_io_u(td, io_u); | |
722 | ||
aea47d44 | 723 | if (td_io_prep(td, io_u)) { |
ebac4655 JA |
724 | put_io_u(td, io_u); |
725 | return NULL; | |
726 | } | |
727 | ||
728 | gettimeofday(&io_u->start_time, NULL); | |
729 | return io_u; | |
730 | } | |
731 | ||
732 | static inline void td_set_runstate(struct thread_data *td, int runstate) | |
733 | { | |
734 | td->old_runstate = td->runstate; | |
735 | td->runstate = runstate; | |
736 | } | |
737 | ||
aea47d44 | 738 | static int get_next_verify(struct thread_data *td, struct io_u *io_u) |
ebac4655 JA |
739 | { |
740 | struct io_piece *ipo; | |
741 | ||
742 | if (list_empty(&td->io_hist_list)) | |
743 | return 1; | |
744 | ||
745 | ipo = list_entry(td->io_hist_list.next, struct io_piece, list); | |
746 | list_del(&ipo->list); | |
747 | ||
aea47d44 JA |
748 | io_u->offset = ipo->offset; |
749 | io_u->buflen = ipo->len; | |
750 | io_u->ddir = DDIR_READ; | |
ebac4655 JA |
751 | free(ipo); |
752 | return 0; | |
753 | } | |
754 | ||
755 | static void prune_io_piece_log(struct thread_data *td) | |
756 | { | |
757 | struct io_piece *ipo; | |
758 | ||
759 | while (!list_empty(&td->io_hist_list)) { | |
760 | ipo = list_entry(td->io_hist_list.next, struct io_piece, list); | |
761 | ||
762 | list_del(&ipo->list); | |
763 | free(ipo); | |
764 | } | |
765 | } | |
766 | ||
767 | /* | |
768 | * log a succesful write, so we can unwind the log for verify | |
769 | */ | |
770 | static void log_io_piece(struct thread_data *td, struct io_u *io_u) | |
771 | { | |
772 | struct io_piece *ipo = malloc(sizeof(struct io_piece)); | |
773 | struct list_head *entry; | |
774 | ||
775 | INIT_LIST_HEAD(&ipo->list); | |
776 | ipo->offset = io_u->offset; | |
777 | ipo->len = io_u->buflen; | |
778 | ||
779 | /* | |
780 | * for random io where the writes extend the file, it will typically | |
781 | * be laid out with the block scattered as written. it's faster to | |
782 | * read them in in that order again, so don't sort | |
783 | */ | |
784 | if (td->sequential || !td->overwrite) { | |
785 | list_add_tail(&ipo->list, &td->io_hist_list); | |
786 | return; | |
787 | } | |
788 | ||
789 | /* | |
790 | * for random io, sort the list so verify will run faster | |
791 | */ | |
792 | entry = &td->io_hist_list; | |
793 | while ((entry = entry->prev) != &td->io_hist_list) { | |
794 | struct io_piece *__ipo = list_entry(entry, struct io_piece, list); | |
795 | ||
796 | if (__ipo->offset < ipo->offset) | |
797 | break; | |
798 | } | |
799 | ||
800 | list_add(&ipo->list, entry); | |
801 | } | |
802 | ||
843a7413 JA |
803 | static void write_iolog_close(struct thread_data *td) |
804 | { | |
805 | fflush(td->iolog_f); | |
806 | fclose(td->iolog_f); | |
807 | free(td->iolog_buf); | |
808 | } | |
809 | ||
aea47d44 JA |
810 | static int init_iolog(struct thread_data *td) |
811 | { | |
812 | unsigned long long offset; | |
813 | unsigned int bytes; | |
814 | char *str, *p; | |
815 | FILE *f; | |
816 | int rw, i, reads, writes; | |
817 | ||
843a7413 | 818 | if (!td->read_iolog && !td->write_iolog) |
aea47d44 JA |
819 | return 0; |
820 | ||
843a7413 JA |
821 | if (td->read_iolog) |
822 | f = fopen(td->iolog_file, "r"); | |
823 | else | |
824 | f = fopen(td->iolog_file, "w"); | |
825 | ||
aea47d44 JA |
826 | if (!f) { |
827 | perror("fopen iolog"); | |
843a7413 | 828 | printf("file %s, %d/%d\n", td->iolog_file, td->read_iolog, td->write_iolog); |
aea47d44 JA |
829 | return 1; |
830 | } | |
831 | ||
843a7413 JA |
832 | /* |
833 | * That's it for writing, setup a log buffer and we're done. | |
834 | */ | |
835 | if (td->write_iolog) { | |
836 | td->iolog_f = f; | |
837 | td->iolog_buf = malloc(8192); | |
838 | setvbuf(f, td->iolog_buf, _IOFBF, 8192); | |
839 | return 0; | |
840 | } | |
841 | ||
842 | /* | |
843 | * Read in the read iolog and store it, reuse the infrastructure | |
844 | * for doing verifications. | |
845 | */ | |
aea47d44 JA |
846 | str = malloc(4096); |
847 | reads = writes = i = 0; | |
848 | while ((p = fgets(str, 4096, f)) != NULL) { | |
849 | struct io_piece *ipo; | |
850 | ||
851 | if (sscanf(p, "%d,%llu,%u", &rw, &offset, &bytes) != 3) { | |
852 | fprintf(stderr, "bad iolog: %s\n", p); | |
853 | continue; | |
854 | } | |
855 | if (rw == DDIR_READ) | |
856 | reads++; | |
857 | else if (rw == DDIR_WRITE) | |
858 | writes++; | |
859 | else { | |
860 | fprintf(stderr, "bad ddir: %d\n", rw); | |
861 | continue; | |
862 | } | |
863 | ||
864 | ipo = malloc(sizeof(*ipo)); | |
865 | INIT_LIST_HEAD(&ipo->list); | |
866 | ipo->offset = offset; | |
867 | ipo->len = bytes; | |
868 | if (bytes > td->max_bs) | |
869 | td->max_bs = bytes; | |
870 | ipo->ddir = rw; | |
871 | list_add_tail(&ipo->list, &td->io_log_list); | |
872 | i++; | |
873 | } | |
874 | ||
875 | free(str); | |
876 | fclose(f); | |
877 | ||
878 | if (!i) | |
879 | return 1; | |
880 | ||
881 | if (reads && !writes) | |
882 | td->ddir = DDIR_READ; | |
883 | else if (!reads && writes) | |
884 | td->ddir = DDIR_READ; | |
885 | else | |
886 | td->iomix = 1; | |
887 | ||
888 | return 0; | |
889 | } | |
890 | ||
ebac4655 JA |
891 | static int sync_td(struct thread_data *td) |
892 | { | |
893 | if (td->io_sync) | |
894 | return td->io_sync(td); | |
895 | ||
896 | return 0; | |
897 | } | |
898 | ||
899 | static int io_u_getevents(struct thread_data *td, int min, int max, | |
900 | struct timespec *t) | |
901 | { | |
902 | return td->io_getevents(td, min, max, t); | |
903 | } | |
904 | ||
905 | static int io_u_queue(struct thread_data *td, struct io_u *io_u) | |
906 | { | |
907 | gettimeofday(&io_u->issue_time, NULL); | |
908 | ||
909 | return td->io_queue(td, io_u); | |
910 | } | |
911 | ||
912 | #define iocb_time(iocb) ((unsigned long) (iocb)->data) | |
913 | ||
914 | static void io_completed(struct thread_data *td, struct io_u *io_u, | |
915 | struct io_completion_data *icd) | |
916 | { | |
917 | struct timeval e; | |
918 | unsigned long msec; | |
919 | ||
920 | gettimeofday(&e, NULL); | |
921 | ||
922 | if (!io_u->error) { | |
20dc95c4 | 923 | unsigned int bytes = io_u->buflen - io_u->resid; |
3d60d1ed | 924 | const int idx = io_u->ddir; |
ebac4655 JA |
925 | |
926 | td->io_blocks[idx]++; | |
20dc95c4 JA |
927 | td->io_bytes[idx] += bytes; |
928 | td->zone_bytes += bytes; | |
929 | td->this_io_bytes[idx] += bytes; | |
ebac4655 JA |
930 | |
931 | msec = mtime_since(&io_u->issue_time, &e); | |
932 | ||
3d60d1ed JA |
933 | add_clat_sample(td, idx, msec); |
934 | add_bw_sample(td, idx); | |
ebac4655 | 935 | |
3d60d1ed | 936 | if ((td_rw(td) || td_write(td)) && idx == DDIR_WRITE) |
ebac4655 JA |
937 | log_io_piece(td, io_u); |
938 | ||
20dc95c4 | 939 | icd->bytes_done[idx] += bytes; |
ebac4655 JA |
940 | } else |
941 | icd->error = io_u->error; | |
942 | } | |
943 | ||
944 | static void ios_completed(struct thread_data *td,struct io_completion_data *icd) | |
945 | { | |
946 | struct io_u *io_u; | |
947 | int i; | |
948 | ||
949 | icd->error = 0; | |
950 | icd->bytes_done[0] = icd->bytes_done[1] = 0; | |
951 | ||
952 | for (i = 0; i < icd->nr; i++) { | |
953 | io_u = td->io_event(td, i); | |
954 | ||
955 | io_completed(td, io_u, icd); | |
956 | put_io_u(td, io_u); | |
957 | } | |
958 | } | |
959 | ||
960 | static void cleanup_pending_aio(struct thread_data *td) | |
961 | { | |
962 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0}; | |
963 | struct list_head *entry, *n; | |
964 | struct io_completion_data icd; | |
965 | struct io_u *io_u; | |
966 | int r; | |
967 | ||
968 | /* | |
969 | * get immediately available events, if any | |
970 | */ | |
971 | r = io_u_getevents(td, 0, td->cur_depth, &ts); | |
972 | if (r > 0) { | |
973 | icd.nr = r; | |
974 | ios_completed(td, &icd); | |
975 | } | |
976 | ||
977 | /* | |
978 | * now cancel remaining active events | |
979 | */ | |
980 | if (td->io_cancel) { | |
981 | list_for_each_safe(entry, n, &td->io_u_busylist) { | |
982 | io_u = list_entry(entry, struct io_u, list); | |
983 | ||
984 | r = td->io_cancel(td, io_u); | |
985 | if (!r) | |
986 | put_io_u(td, io_u); | |
987 | } | |
988 | } | |
989 | ||
990 | if (td->cur_depth) { | |
991 | r = io_u_getevents(td, td->cur_depth, td->cur_depth, NULL); | |
992 | if (r > 0) { | |
993 | icd.nr = r; | |
994 | ios_completed(td, &icd); | |
995 | } | |
996 | } | |
997 | } | |
998 | ||
999 | static int do_io_u_verify(struct thread_data *td, struct io_u **io_u) | |
1000 | { | |
1001 | struct io_u *v_io_u = *io_u; | |
1002 | int ret = 0; | |
1003 | ||
1004 | if (v_io_u) { | |
1005 | ret = verify_io_u(v_io_u); | |
1006 | put_io_u(td, v_io_u); | |
1007 | *io_u = NULL; | |
1008 | } | |
1009 | ||
1010 | return ret; | |
1011 | } | |
1012 | ||
1013 | static void do_verify(struct thread_data *td) | |
1014 | { | |
1015 | struct timeval t; | |
1016 | struct io_u *io_u, *v_io_u = NULL; | |
1017 | struct io_completion_data icd; | |
1018 | int ret; | |
1019 | ||
1020 | td_set_runstate(td, TD_VERIFYING); | |
1021 | ||
1022 | do { | |
1023 | if (td->terminate) | |
1024 | break; | |
1025 | ||
1026 | gettimeofday(&t, NULL); | |
1027 | if (runtime_exceeded(td, &t)) | |
1028 | break; | |
1029 | ||
1030 | io_u = __get_io_u(td); | |
1031 | if (!io_u) | |
1032 | break; | |
1033 | ||
aea47d44 | 1034 | if (get_next_verify(td, io_u)) { |
ebac4655 JA |
1035 | put_io_u(td, io_u); |
1036 | break; | |
1037 | } | |
1038 | ||
aea47d44 | 1039 | if (td_io_prep(td, io_u)) { |
ebac4655 JA |
1040 | put_io_u(td, io_u); |
1041 | break; | |
1042 | } | |
1043 | ||
1044 | ret = io_u_queue(td, io_u); | |
1045 | if (ret) { | |
1046 | put_io_u(td, io_u); | |
1047 | td_verror(td, ret); | |
1048 | break; | |
1049 | } | |
1050 | ||
1051 | /* | |
1052 | * we have one pending to verify, do that while | |
1053 | * we are doing io on the next one | |
1054 | */ | |
1055 | if (do_io_u_verify(td, &v_io_u)) | |
1056 | break; | |
1057 | ||
1058 | ret = io_u_getevents(td, 1, 1, NULL); | |
1059 | if (ret != 1) { | |
1060 | if (ret < 0) | |
1061 | td_verror(td, ret); | |
1062 | break; | |
1063 | } | |
1064 | ||
1065 | v_io_u = td->io_event(td, 0); | |
1066 | icd.nr = 1; | |
1067 | icd.error = 0; | |
1068 | io_completed(td, v_io_u, &icd); | |
1069 | ||
1070 | if (icd.error) { | |
1071 | td_verror(td, icd.error); | |
1072 | put_io_u(td, v_io_u); | |
1073 | v_io_u = NULL; | |
1074 | break; | |
1075 | } | |
1076 | ||
ebac4655 JA |
1077 | /* |
1078 | * if we can't submit more io, we need to verify now | |
1079 | */ | |
1080 | if (queue_full(td) && do_io_u_verify(td, &v_io_u)) | |
1081 | break; | |
1082 | ||
1083 | } while (1); | |
1084 | ||
1085 | do_io_u_verify(td, &v_io_u); | |
1086 | ||
1087 | if (td->cur_depth) | |
1088 | cleanup_pending_aio(td); | |
1089 | ||
1090 | td_set_runstate(td, TD_RUNNING); | |
1091 | } | |
1092 | ||
1093 | static void do_io(struct thread_data *td) | |
1094 | { | |
1095 | struct io_completion_data icd; | |
1096 | struct timeval s, e; | |
1097 | unsigned long usec; | |
1098 | ||
1099 | while (td->this_io_bytes[td->ddir] < td->io_size) { | |
1100 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0}; | |
1101 | struct timespec *timeout; | |
1102 | int ret, min_evts = 0; | |
1103 | struct io_u *io_u; | |
1104 | ||
1105 | if (td->terminate) | |
1106 | break; | |
1107 | ||
1108 | io_u = get_io_u(td); | |
1109 | if (!io_u) | |
1110 | break; | |
1111 | ||
1112 | memcpy(&s, &io_u->start_time, sizeof(s)); | |
1113 | ||
1114 | ret = io_u_queue(td, io_u); | |
1115 | if (ret) { | |
1116 | put_io_u(td, io_u); | |
1117 | td_verror(td, ret); | |
1118 | break; | |
1119 | } | |
1120 | ||
1121 | add_slat_sample(td, io_u->ddir, mtime_since(&io_u->start_time, &io_u->issue_time)); | |
1122 | ||
1123 | if (td->cur_depth < td->iodepth) { | |
1124 | timeout = &ts; | |
1125 | min_evts = 0; | |
1126 | } else { | |
1127 | timeout = NULL; | |
1128 | min_evts = 1; | |
1129 | } | |
1130 | ||
1131 | ret = io_u_getevents(td, min_evts, td->cur_depth, timeout); | |
1132 | if (ret < 0) { | |
1133 | td_verror(td, ret); | |
1134 | break; | |
1135 | } else if (!ret) | |
1136 | continue; | |
1137 | ||
1138 | icd.nr = ret; | |
1139 | ios_completed(td, &icd); | |
1140 | if (icd.error) { | |
1141 | td_verror(td, icd.error); | |
1142 | break; | |
1143 | } | |
1144 | ||
1145 | /* | |
1146 | * the rate is batched for now, it should work for batches | |
1147 | * of completions except the very first one which may look | |
1148 | * a little bursty | |
1149 | */ | |
1150 | gettimeofday(&e, NULL); | |
1151 | usec = utime_since(&s, &e); | |
1152 | ||
1153 | rate_throttle(td, usec, icd.bytes_done[td->ddir]); | |
1154 | ||
1155 | if (check_min_rate(td, &e)) { | |
1156 | td_verror(td, ENOMEM); | |
1157 | break; | |
1158 | } | |
1159 | ||
1160 | if (runtime_exceeded(td, &e)) | |
1161 | break; | |
1162 | ||
1163 | if (td->thinktime) | |
1164 | usec_sleep(td, td->thinktime); | |
1165 | ||
1166 | if (should_fsync(td) && td->fsync_blocks && | |
1167 | (td->io_blocks[DDIR_WRITE] % td->fsync_blocks) == 0) | |
1168 | sync_td(td); | |
1169 | } | |
1170 | ||
1171 | if (td->cur_depth) | |
1172 | cleanup_pending_aio(td); | |
1173 | ||
fc1a4713 | 1174 | if (should_fsync(td) && td->end_fsync) |
ebac4655 JA |
1175 | sync_td(td); |
1176 | } | |
1177 | ||
1178 | static void cleanup_io(struct thread_data *td) | |
1179 | { | |
1180 | if (td->io_cleanup) | |
1181 | td->io_cleanup(td); | |
1182 | } | |
1183 | ||
1184 | static int init_io(struct thread_data *td) | |
1185 | { | |
1186 | if (td->io_engine == FIO_SYNCIO) | |
1187 | return fio_syncio_init(td); | |
1188 | else if (td->io_engine == FIO_MMAPIO) | |
1189 | return fio_mmapio_init(td); | |
1190 | else if (td->io_engine == FIO_LIBAIO) | |
1191 | return fio_libaio_init(td); | |
1192 | else if (td->io_engine == FIO_POSIXAIO) | |
1193 | return fio_posixaio_init(td); | |
1194 | else if (td->io_engine == FIO_SGIO) | |
1195 | return fio_sgio_init(td); | |
8756e4d4 JA |
1196 | else if (td->io_engine == FIO_SPLICEIO) |
1197 | return fio_spliceio_init(td); | |
ebac4655 JA |
1198 | else { |
1199 | fprintf(stderr, "bad io_engine %d\n", td->io_engine); | |
1200 | return 1; | |
1201 | } | |
1202 | } | |
1203 | ||
1204 | static void cleanup_io_u(struct thread_data *td) | |
1205 | { | |
1206 | struct list_head *entry, *n; | |
1207 | struct io_u *io_u; | |
1208 | ||
1209 | list_for_each_safe(entry, n, &td->io_u_freelist) { | |
1210 | io_u = list_entry(entry, struct io_u, list); | |
1211 | ||
1212 | list_del(&io_u->list); | |
1213 | free(io_u); | |
1214 | } | |
1215 | ||
1216 | if (td->mem_type == MEM_MALLOC) | |
1217 | free(td->orig_buffer); | |
1218 | else if (td->mem_type == MEM_SHM) { | |
1219 | struct shmid_ds sbuf; | |
1220 | ||
1221 | shmdt(td->orig_buffer); | |
1222 | shmctl(td->shm_id, IPC_RMID, &sbuf); | |
1223 | } else if (td->mem_type == MEM_MMAP) | |
1224 | munmap(td->orig_buffer, td->orig_buffer_size); | |
1225 | else | |
1226 | fprintf(stderr, "Bad memory type %d\n", td->mem_type); | |
1227 | ||
1228 | td->orig_buffer = NULL; | |
1229 | } | |
1230 | ||
1231 | static int init_io_u(struct thread_data *td) | |
1232 | { | |
1233 | struct io_u *io_u; | |
1234 | int i, max_units; | |
1235 | char *p; | |
1236 | ||
1237 | if (td->io_engine & FIO_SYNCIO) | |
1238 | max_units = 1; | |
1239 | else | |
1240 | max_units = td->iodepth; | |
1241 | ||
1242 | td->orig_buffer_size = td->max_bs * max_units + MASK; | |
1243 | ||
1244 | if (td->mem_type == MEM_MALLOC) | |
1245 | td->orig_buffer = malloc(td->orig_buffer_size); | |
1246 | else if (td->mem_type == MEM_SHM) { | |
1247 | td->shm_id = shmget(IPC_PRIVATE, td->orig_buffer_size, IPC_CREAT | 0600); | |
1248 | if (td->shm_id < 0) { | |
1249 | td_verror(td, errno); | |
1250 | perror("shmget"); | |
1251 | return 1; | |
1252 | } | |
1253 | ||
1254 | td->orig_buffer = shmat(td->shm_id, NULL, 0); | |
1255 | if (td->orig_buffer == (void *) -1) { | |
1256 | td_verror(td, errno); | |
1257 | perror("shmat"); | |
1258 | td->orig_buffer = NULL; | |
1259 | return 1; | |
1260 | } | |
1261 | } else if (td->mem_type == MEM_MMAP) { | |
1262 | td->orig_buffer = mmap(NULL, td->orig_buffer_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | OS_MAP_ANON, 0, 0); | |
1263 | if (td->orig_buffer == MAP_FAILED) { | |
1264 | td_verror(td, errno); | |
1265 | perror("mmap"); | |
1266 | td->orig_buffer = NULL; | |
1267 | return 1; | |
1268 | } | |
1269 | } | |
1270 | ||
ebac4655 JA |
1271 | p = ALIGN(td->orig_buffer); |
1272 | for (i = 0; i < max_units; i++) { | |
1273 | io_u = malloc(sizeof(*io_u)); | |
1274 | memset(io_u, 0, sizeof(*io_u)); | |
1275 | INIT_LIST_HEAD(&io_u->list); | |
1276 | ||
1277 | io_u->buf = p + td->max_bs * i; | |
b1ff3403 | 1278 | io_u->index = i; |
ebac4655 JA |
1279 | list_add(&io_u->list, &td->io_u_freelist); |
1280 | } | |
1281 | ||
1282 | return 0; | |
1283 | } | |
1284 | ||
4b5bd14c JA |
1285 | static void cleanup_allocs(struct thread_data *td) |
1286 | { | |
1287 | if (td->directory) | |
1288 | free(td->directory); | |
1289 | if (td->iolog_file) | |
1290 | free(td->iolog_file); | |
1291 | if (td->exec_prerun) | |
1292 | free(td->exec_prerun); | |
1293 | if (td->exec_postrun) | |
1294 | free(td->exec_postrun); | |
1295 | if (td->ioscheduler) | |
1296 | free(td->ioscheduler); | |
1297 | if (td->sysfs_root) | |
1298 | free(td->sysfs_root); | |
1299 | } | |
1300 | ||
ebac4655 JA |
1301 | static int create_file(struct thread_data *td, unsigned long long size, |
1302 | int extend) | |
1303 | { | |
1304 | unsigned long long left; | |
1305 | unsigned int bs; | |
1306 | int r, oflags; | |
1307 | char *b; | |
1308 | ||
1309 | /* | |
1310 | * unless specifically asked for overwrite, let normal io extend it | |
1311 | */ | |
1312 | if (td_write(td) && !td->overwrite) | |
1313 | return 0; | |
1314 | ||
1315 | if (!size) { | |
1316 | fprintf(stderr, "Need size for create\n"); | |
1317 | td_verror(td, EINVAL); | |
1318 | return 1; | |
1319 | } | |
1320 | ||
1321 | if (!extend) { | |
1322 | oflags = O_CREAT | O_TRUNC; | |
1323 | printf("Client%d: Laying out IO file (%LuMiB)\n", td->thread_number, size >> 20); | |
1324 | } else { | |
1325 | oflags = O_APPEND; | |
1326 | printf("Client%d: Extending IO file (%Lu -> %LuMiB)\n", td->thread_number, (td->file_size - size) >> 20, td->file_size >> 20); | |
1327 | } | |
1328 | ||
1329 | td->fd = open(td->file_name, O_WRONLY | oflags, 0644); | |
1330 | if (td->fd < 0) { | |
1331 | td_verror(td, errno); | |
1332 | return 1; | |
1333 | } | |
1334 | ||
1335 | if (!extend && ftruncate(td->fd, td->file_size) == -1) { | |
1336 | td_verror(td, errno); | |
1337 | return 1; | |
1338 | } | |
1339 | ||
1340 | td->io_size = td->file_size; | |
1341 | b = malloc(td->max_bs); | |
1342 | memset(b, 0, td->max_bs); | |
1343 | ||
1344 | left = size; | |
1345 | while (left && !td->terminate) { | |
1346 | bs = td->max_bs; | |
1347 | if (bs > left) | |
1348 | bs = left; | |
1349 | ||
1350 | r = write(td->fd, b, bs); | |
1351 | ||
1352 | if (r == (int) bs) { | |
1353 | left -= bs; | |
1354 | continue; | |
1355 | } else { | |
1356 | if (r < 0) | |
1357 | td_verror(td, errno); | |
1358 | else | |
1359 | td_verror(td, EIO); | |
1360 | ||
1361 | break; | |
1362 | } | |
1363 | } | |
1364 | ||
1365 | if (td->terminate) | |
1366 | unlink(td->file_name); | |
1367 | else if (td->create_fsync) | |
1368 | fsync(td->fd); | |
1369 | ||
1370 | close(td->fd); | |
1371 | td->fd = -1; | |
1372 | free(b); | |
1373 | return 0; | |
1374 | } | |
1375 | ||
1376 | static int file_size(struct thread_data *td) | |
1377 | { | |
1378 | struct stat st; | |
1379 | ||
1380 | if (fstat(td->fd, &st) == -1) { | |
1381 | td_verror(td, errno); | |
1382 | return 1; | |
1383 | } | |
1384 | ||
838a3cd3 JA |
1385 | td->real_file_size = st.st_size; |
1386 | ||
1387 | if (!td->file_size || td->file_size > td->real_file_size) | |
1388 | td->file_size = td->real_file_size; | |
ebac4655 | 1389 | |
e8e387c1 | 1390 | td->file_size -= td->file_offset; |
ebac4655 JA |
1391 | return 0; |
1392 | } | |
1393 | ||
1394 | static int bdev_size(struct thread_data *td) | |
1395 | { | |
9104f874 | 1396 | unsigned long long bytes; |
ebac4655 JA |
1397 | int r; |
1398 | ||
1399 | r = blockdev_size(td->fd, &bytes); | |
1400 | if (r) { | |
1401 | td_verror(td, r); | |
1402 | return 1; | |
1403 | } | |
1404 | ||
838a3cd3 JA |
1405 | td->real_file_size = bytes; |
1406 | ||
ebac4655 JA |
1407 | /* |
1408 | * no extend possibilities, so limit size to device size if too large | |
1409 | */ | |
838a3cd3 JA |
1410 | if (!td->file_size || td->file_size > td->real_file_size) |
1411 | td->file_size = td->real_file_size; | |
ebac4655 | 1412 | |
e8e387c1 | 1413 | td->file_size -= td->file_offset; |
ebac4655 JA |
1414 | return 0; |
1415 | } | |
1416 | ||
1417 | static int get_file_size(struct thread_data *td) | |
1418 | { | |
0af7b542 | 1419 | int ret = 0; |
ebac4655 JA |
1420 | |
1421 | if (td->filetype == FIO_TYPE_FILE) | |
1422 | ret = file_size(td); | |
0af7b542 | 1423 | else if (td->filetype == FIO_TYPE_BD) |
ebac4655 | 1424 | ret = bdev_size(td); |
0af7b542 JA |
1425 | else |
1426 | td->real_file_size = -1; | |
ebac4655 JA |
1427 | |
1428 | if (ret) | |
1429 | return ret; | |
1430 | ||
e8e387c1 JA |
1431 | if (td->file_offset > td->real_file_size) { |
1432 | fprintf(stderr, "Client%d: offset extends end (%Lu > %Lu)\n", td->thread_number, td->file_offset, td->real_file_size); | |
ebac4655 JA |
1433 | return 1; |
1434 | } | |
1435 | ||
838a3cd3 | 1436 | td->io_size = td->file_size; |
ebac4655 JA |
1437 | if (td->io_size == 0) { |
1438 | fprintf(stderr, "Client%d: no io blocks\n", td->thread_number); | |
1439 | td_verror(td, EINVAL); | |
1440 | return 1; | |
1441 | } | |
1442 | ||
20dc95c4 JA |
1443 | if (!td->zone_size) |
1444 | td->zone_size = td->io_size; | |
1445 | ||
ebac4655 JA |
1446 | td->total_io_size = td->io_size * td->loops; |
1447 | return 0; | |
1448 | } | |
1449 | ||
1450 | static int setup_file_mmap(struct thread_data *td) | |
1451 | { | |
1452 | int flags; | |
1453 | ||
3d60d1ed JA |
1454 | if (td_rw(td)) |
1455 | flags = PROT_READ | PROT_WRITE; | |
1456 | else if (td_write(td)) { | |
ebac4655 JA |
1457 | flags = PROT_WRITE; |
1458 | ||
1459 | if (td->verify != VERIFY_NONE) | |
1460 | flags |= PROT_READ; | |
3d60d1ed JA |
1461 | } else |
1462 | flags = PROT_READ; | |
ebac4655 JA |
1463 | |
1464 | td->mmap = mmap(NULL, td->file_size, flags, MAP_SHARED, td->fd, td->file_offset); | |
1465 | if (td->mmap == MAP_FAILED) { | |
1466 | td->mmap = NULL; | |
1467 | td_verror(td, errno); | |
1468 | return 1; | |
1469 | } | |
1470 | ||
1471 | if (td->invalidate_cache) { | |
1472 | if (madvise(td->mmap, td->file_size, MADV_DONTNEED) < 0) { | |
1473 | td_verror(td, errno); | |
1474 | return 1; | |
1475 | } | |
1476 | } | |
1477 | ||
1478 | if (td->sequential) { | |
1479 | if (madvise(td->mmap, td->file_size, MADV_SEQUENTIAL) < 0) { | |
1480 | td_verror(td, errno); | |
1481 | return 1; | |
1482 | } | |
1483 | } else { | |
1484 | if (madvise(td->mmap, td->file_size, MADV_RANDOM) < 0) { | |
1485 | td_verror(td, errno); | |
1486 | return 1; | |
1487 | } | |
1488 | } | |
1489 | ||
1490 | return 0; | |
1491 | } | |
1492 | ||
1493 | static int setup_file_plain(struct thread_data *td) | |
1494 | { | |
1495 | if (td->invalidate_cache) { | |
1496 | if (fadvise(td->fd, td->file_offset, td->file_size, POSIX_FADV_DONTNEED) < 0) { | |
1497 | td_verror(td, errno); | |
1498 | return 1; | |
1499 | } | |
1500 | } | |
1501 | ||
1502 | if (td->sequential) { | |
1503 | if (fadvise(td->fd, td->file_offset, td->file_size, POSIX_FADV_SEQUENTIAL) < 0) { | |
1504 | td_verror(td, errno); | |
1505 | return 1; | |
1506 | } | |
1507 | } else { | |
1508 | if (fadvise(td->fd, td->file_offset, td->file_size, POSIX_FADV_RANDOM) < 0) { | |
1509 | td_verror(td, errno); | |
1510 | return 1; | |
1511 | } | |
1512 | } | |
1513 | ||
1514 | return 0; | |
1515 | } | |
1516 | ||
1517 | static int setup_file(struct thread_data *td) | |
1518 | { | |
1519 | struct stat st; | |
1520 | int flags = 0; | |
1521 | ||
1522 | if (stat(td->file_name, &st) == -1) { | |
1523 | if (errno != ENOENT) { | |
1524 | td_verror(td, errno); | |
1525 | return 1; | |
1526 | } | |
1527 | if (!td->create_file) { | |
1528 | td_verror(td, ENOENT); | |
1529 | return 1; | |
1530 | } | |
1531 | if (create_file(td, td->file_size, 0)) | |
1532 | return 1; | |
1533 | } else if (td->filetype == FIO_TYPE_FILE) { | |
6a0106a0 | 1534 | if (st.st_size < (off_t) td->file_size) { |
ebac4655 JA |
1535 | if (create_file(td, td->file_size - st.st_size, 1)) |
1536 | return 1; | |
1537 | } | |
1538 | } | |
1539 | ||
1540 | if (td->odirect) | |
1541 | flags |= O_DIRECT; | |
1542 | ||
3d60d1ed | 1543 | if (td_write(td) || td_rw(td)) { |
ebac4655 JA |
1544 | if (td->filetype == FIO_TYPE_FILE) { |
1545 | if (!td->overwrite) | |
1546 | flags |= O_TRUNC; | |
1547 | ||
1548 | flags |= O_CREAT; | |
1549 | } | |
1550 | if (td->sync_io) | |
1551 | flags |= O_SYNC; | |
1552 | ||
1553 | flags |= O_RDWR; | |
1554 | ||
1555 | td->fd = open(td->file_name, flags, 0600); | |
3d60d1ed JA |
1556 | } else { |
1557 | if (td->filetype == FIO_TYPE_CHAR) | |
1558 | flags |= O_RDWR; | |
1559 | else | |
1560 | flags |= O_RDONLY; | |
1561 | ||
1562 | td->fd = open(td->file_name, flags); | |
ebac4655 JA |
1563 | } |
1564 | ||
1565 | if (td->fd == -1) { | |
1566 | td_verror(td, errno); | |
1567 | return 1; | |
1568 | } | |
1569 | ||
1570 | if (get_file_size(td)) | |
1571 | return 1; | |
1572 | ||
1573 | if (td->io_engine != FIO_MMAPIO) | |
1574 | return setup_file_plain(td); | |
1575 | else | |
1576 | return setup_file_mmap(td); | |
1577 | } | |
1578 | ||
1579 | static int check_dev_match(dev_t dev, char *path) | |
1580 | { | |
1581 | unsigned int major, minor; | |
1582 | char line[256], *p; | |
1583 | FILE *f; | |
1584 | ||
1585 | f = fopen(path, "r"); | |
1586 | if (!f) { | |
1587 | perror("open path"); | |
1588 | return 1; | |
1589 | } | |
1590 | ||
1591 | p = fgets(line, sizeof(line), f); | |
1592 | if (!p) { | |
1593 | fclose(f); | |
1594 | return 1; | |
1595 | } | |
1596 | ||
1597 | if (sscanf(p, "%u:%u", &major, &minor) != 2) { | |
1598 | fclose(f); | |
1599 | return 1; | |
1600 | } | |
1601 | ||
1602 | if (((major << 8) | minor) == dev) { | |
1603 | fclose(f); | |
1604 | return 0; | |
1605 | } | |
1606 | ||
1607 | fclose(f); | |
1608 | return 1; | |
1609 | } | |
1610 | ||
1611 | static int find_block_dir(dev_t dev, char *path) | |
1612 | { | |
1613 | struct dirent *dir; | |
1614 | struct stat st; | |
1615 | int found = 0; | |
1616 | DIR *D; | |
1617 | ||
1618 | D = opendir(path); | |
1619 | if (!D) | |
1620 | return 0; | |
1621 | ||
1622 | while ((dir = readdir(D)) != NULL) { | |
1623 | char full_path[256]; | |
1624 | ||
1625 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) | |
1626 | continue; | |
1627 | if (!strcmp(dir->d_name, "device")) | |
1628 | continue; | |
1629 | ||
1630 | sprintf(full_path, "%s/%s", path, dir->d_name); | |
1631 | ||
1632 | if (!strcmp(dir->d_name, "dev")) { | |
1633 | if (!check_dev_match(dev, full_path)) { | |
1634 | found = 1; | |
1635 | break; | |
1636 | } | |
1637 | } | |
1638 | ||
1639 | if (stat(full_path, &st) == -1) { | |
1640 | perror("stat"); | |
1641 | break; | |
1642 | } | |
1643 | ||
1644 | if (!S_ISDIR(st.st_mode) || S_ISLNK(st.st_mode)) | |
1645 | continue; | |
1646 | ||
1647 | found = find_block_dir(dev, full_path); | |
1648 | if (found) { | |
1649 | strcpy(path, full_path); | |
1650 | break; | |
1651 | } | |
1652 | } | |
1653 | ||
1654 | closedir(D); | |
1655 | return found; | |
1656 | } | |
1657 | ||
1658 | static int get_io_ticks(struct disk_util *du, struct disk_util_stat *dus) | |
1659 | { | |
1660 | unsigned in_flight; | |
1661 | char line[256]; | |
1662 | FILE *f; | |
1663 | char *p; | |
1664 | ||
1665 | f = fopen(du->path, "r"); | |
1666 | if (!f) | |
1667 | return 1; | |
1668 | ||
1669 | p = fgets(line, sizeof(line), f); | |
1670 | if (!p) { | |
1671 | fclose(f); | |
1672 | return 1; | |
1673 | } | |
1674 | ||
1675 | if (sscanf(p, "%u %u %llu %u %u %u %llu %u %u %u %u\n", &dus->ios[0], &dus->merges[0], &dus->sectors[0], &dus->ticks[0], &dus->ios[1], &dus->merges[1], &dus->sectors[1], &dus->ticks[1], &in_flight, &dus->io_ticks, &dus->time_in_queue) != 11) { | |
1676 | fclose(f); | |
1677 | return 1; | |
1678 | } | |
1679 | ||
1680 | fclose(f); | |
1681 | return 0; | |
1682 | } | |
1683 | ||
1684 | static void update_io_tick_disk(struct disk_util *du) | |
1685 | { | |
1686 | struct disk_util_stat __dus, *dus, *ldus; | |
1687 | struct timeval t; | |
1688 | ||
1689 | if (get_io_ticks(du, &__dus)) | |
1690 | return; | |
1691 | ||
1692 | dus = &du->dus; | |
1693 | ldus = &du->last_dus; | |
1694 | ||
1695 | dus->sectors[0] += (__dus.sectors[0] - ldus->sectors[0]); | |
1696 | dus->sectors[1] += (__dus.sectors[1] - ldus->sectors[1]); | |
1697 | dus->ios[0] += (__dus.ios[0] - ldus->ios[0]); | |
1698 | dus->ios[1] += (__dus.ios[1] - ldus->ios[1]); | |
1699 | dus->merges[0] += (__dus.merges[0] - ldus->merges[0]); | |
1700 | dus->merges[1] += (__dus.merges[1] - ldus->merges[1]); | |
1701 | dus->ticks[0] += (__dus.ticks[0] - ldus->ticks[0]); | |
1702 | dus->ticks[1] += (__dus.ticks[1] - ldus->ticks[1]); | |
1703 | dus->io_ticks += (__dus.io_ticks - ldus->io_ticks); | |
1704 | dus->time_in_queue += (__dus.time_in_queue - ldus->time_in_queue); | |
1705 | ||
1706 | gettimeofday(&t, NULL); | |
1707 | du->msec += mtime_since(&du->time, &t); | |
1708 | memcpy(&du->time, &t, sizeof(t)); | |
1709 | memcpy(ldus, &__dus, sizeof(__dus)); | |
1710 | } | |
1711 | ||
1712 | static void update_io_ticks(void) | |
1713 | { | |
1714 | struct list_head *entry; | |
1715 | struct disk_util *du; | |
1716 | ||
1717 | list_for_each(entry, &disk_list) { | |
1718 | du = list_entry(entry, struct disk_util, list); | |
1719 | update_io_tick_disk(du); | |
1720 | } | |
1721 | } | |
1722 | ||
1723 | static int disk_util_exists(dev_t dev) | |
1724 | { | |
1725 | struct list_head *entry; | |
1726 | struct disk_util *du; | |
1727 | ||
1728 | list_for_each(entry, &disk_list) { | |
1729 | du = list_entry(entry, struct disk_util, list); | |
1730 | ||
1731 | if (du->dev == dev) | |
1732 | return 1; | |
1733 | } | |
1734 | ||
1735 | return 0; | |
1736 | } | |
1737 | ||
1738 | static void disk_util_add(dev_t dev, char *path) | |
1739 | { | |
1740 | struct disk_util *du = malloc(sizeof(*du)); | |
1741 | ||
1742 | memset(du, 0, sizeof(*du)); | |
1743 | INIT_LIST_HEAD(&du->list); | |
1744 | sprintf(du->path, "%s/stat", path); | |
1745 | du->name = strdup(basename(path)); | |
1746 | du->dev = dev; | |
1747 | ||
1748 | gettimeofday(&du->time, NULL); | |
1749 | get_io_ticks(du, &du->last_dus); | |
1750 | ||
1751 | list_add_tail(&du->list, &disk_list); | |
1752 | } | |
1753 | ||
1754 | static void init_disk_util(struct thread_data *td) | |
1755 | { | |
1756 | struct stat st; | |
1757 | char foo[256], tmp[256]; | |
1758 | dev_t dev; | |
1759 | char *p; | |
1760 | ||
1761 | if (!td->do_disk_util) | |
1762 | return; | |
1763 | ||
1764 | if (!stat(td->file_name, &st)) { | |
1765 | if (S_ISBLK(st.st_mode)) | |
1766 | dev = st.st_rdev; | |
1767 | else | |
1768 | dev = st.st_dev; | |
1769 | } else { | |
1770 | /* | |
1771 | * must be a file, open "." in that path | |
1772 | */ | |
1773 | strcpy(foo, td->file_name); | |
1774 | p = dirname(foo); | |
1775 | if (stat(p, &st)) { | |
1776 | perror("disk util stat"); | |
1777 | return; | |
1778 | } | |
1779 | ||
1780 | dev = st.st_dev; | |
1781 | } | |
1782 | ||
1783 | if (disk_util_exists(dev)) | |
1784 | return; | |
1785 | ||
1786 | sprintf(foo, "/sys/block"); | |
1787 | if (!find_block_dir(dev, foo)) | |
1788 | return; | |
1789 | ||
1790 | /* | |
d07f439e JA |
1791 | * If there's a ../queue/ directory there, we are inside a partition. |
1792 | * Check if that is the case and jump back. For loop/md/dm etc we | |
1793 | * are already in the right spot. | |
ebac4655 | 1794 | */ |
d07f439e JA |
1795 | sprintf(tmp, "%s/../queue", foo); |
1796 | if (!stat(tmp, &st)) { | |
1797 | p = dirname(foo); | |
1798 | sprintf(tmp, "%s/queue", p); | |
ebac4655 | 1799 | if (stat(tmp, &st)) { |
d07f439e JA |
1800 | fprintf(stderr, "unknown sysfs layout\n"); |
1801 | return; | |
ebac4655 | 1802 | } |
d07f439e | 1803 | sprintf(foo, "%s", p); |
ebac4655 JA |
1804 | } |
1805 | ||
da86774e | 1806 | td->sysfs_root = strdup(foo); |
ebac4655 JA |
1807 | disk_util_add(dev, foo); |
1808 | } | |
1809 | ||
da86774e JA |
1810 | static int switch_ioscheduler(struct thread_data *td) |
1811 | { | |
1812 | char tmp[256], tmp2[128]; | |
1813 | FILE *f; | |
1814 | int ret; | |
1815 | ||
1816 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); | |
1817 | ||
1818 | f = fopen(tmp, "r+"); | |
1819 | if (!f) { | |
1820 | td_verror(td, errno); | |
1821 | return 1; | |
1822 | } | |
1823 | ||
1824 | /* | |
1825 | * Set io scheduler. | |
1826 | */ | |
1827 | ret = fwrite(td->ioscheduler, strlen(td->ioscheduler), 1, f); | |
1828 | if (ferror(f) || ret != 1) { | |
1829 | td_verror(td, errno); | |
1830 | fclose(f); | |
1831 | return 1; | |
1832 | } | |
1833 | ||
1834 | rewind(f); | |
1835 | ||
1836 | /* | |
1837 | * Read back and check that the selected scheduler is now the default. | |
1838 | */ | |
1839 | ret = fread(tmp, 1, sizeof(tmp), f); | |
1840 | if (ferror(f) || ret < 0) { | |
1841 | td_verror(td, errno); | |
1842 | fclose(f); | |
1843 | return 1; | |
1844 | } | |
1845 | ||
1846 | sprintf(tmp2, "[%s]", td->ioscheduler); | |
1847 | if (!strstr(tmp, tmp2)) { | |
1848 | fprintf(stderr, "fio: io scheduler %s not found\n", td->ioscheduler); | |
1849 | td_verror(td, EINVAL); | |
1850 | fclose(f); | |
1851 | return 1; | |
1852 | } | |
1853 | ||
1854 | fclose(f); | |
1855 | return 0; | |
1856 | } | |
1857 | ||
ebac4655 JA |
1858 | static void disk_util_timer_arm(void) |
1859 | { | |
1860 | itimer.it_value.tv_sec = 0; | |
1861 | itimer.it_value.tv_usec = DISK_UTIL_MSEC * 1000; | |
1862 | setitimer(ITIMER_REAL, &itimer, NULL); | |
1863 | } | |
1864 | ||
1865 | static void clear_io_state(struct thread_data *td) | |
1866 | { | |
1867 | if (td->io_engine == FIO_SYNCIO) | |
1868 | lseek(td->fd, SEEK_SET, 0); | |
1869 | ||
20dc95c4 | 1870 | td->last_pos = 0; |
ebac4655 JA |
1871 | td->stat_io_bytes[0] = td->stat_io_bytes[1] = 0; |
1872 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; | |
20dc95c4 | 1873 | td->zone_bytes = 0; |
ebac4655 JA |
1874 | |
1875 | if (td->file_map) | |
1876 | memset(td->file_map, 0, td->num_maps * sizeof(long)); | |
1877 | } | |
1878 | ||
1879 | static void update_rusage_stat(struct thread_data *td) | |
1880 | { | |
1881 | if (!(td->runtime[0] + td->runtime[1])) | |
1882 | return; | |
1883 | ||
1884 | getrusage(RUSAGE_SELF, &td->ru_end); | |
1885 | ||
1886 | td->usr_time += mtime_since(&td->ru_start.ru_utime, &td->ru_end.ru_utime); | |
1887 | td->sys_time += mtime_since(&td->ru_start.ru_stime, &td->ru_end.ru_stime); | |
1888 | td->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw); | |
1889 | ||
1890 | ||
1891 | memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end)); | |
1892 | } | |
1893 | ||
1894 | static void *thread_main(void *data) | |
1895 | { | |
1896 | struct thread_data *td = data; | |
ebac4655 JA |
1897 | |
1898 | if (!td->use_thread) | |
1899 | setsid(); | |
1900 | ||
1901 | td->pid = getpid(); | |
1902 | ||
aea47d44 JA |
1903 | INIT_LIST_HEAD(&td->io_u_freelist); |
1904 | INIT_LIST_HEAD(&td->io_u_busylist); | |
1905 | INIT_LIST_HEAD(&td->io_hist_list); | |
1906 | INIT_LIST_HEAD(&td->io_log_list); | |
1907 | ||
ebac4655 JA |
1908 | if (init_io_u(td)) |
1909 | goto err; | |
1910 | ||
1911 | if (fio_setaffinity(td) == -1) { | |
1912 | td_verror(td, errno); | |
1913 | goto err; | |
1914 | } | |
1915 | ||
1916 | if (init_io(td)) | |
1917 | goto err; | |
1918 | ||
aea47d44 JA |
1919 | if (init_iolog(td)) |
1920 | goto err; | |
1921 | ||
ebac4655 JA |
1922 | if (td->ioprio) { |
1923 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { | |
1924 | td_verror(td, errno); | |
1925 | goto err; | |
1926 | } | |
1927 | } | |
1928 | ||
b6f4d880 JA |
1929 | if (nice(td->nice) < 0) { |
1930 | td_verror(td, errno); | |
1931 | goto err; | |
1932 | } | |
1933 | ||
75154845 JA |
1934 | if (init_random_state(td)) |
1935 | goto err; | |
1936 | ||
da86774e JA |
1937 | if (td->ioscheduler && switch_ioscheduler(td)) |
1938 | goto err; | |
1939 | ||
75154845 | 1940 | td_set_runstate(td, TD_INITIALIZED); |
ebac4655 JA |
1941 | sem_post(&startup_sem); |
1942 | sem_wait(&td->mutex); | |
1943 | ||
1944 | if (!td->create_serialize && setup_file(td)) | |
1945 | goto err; | |
1946 | ||
ebac4655 JA |
1947 | gettimeofday(&td->epoch, NULL); |
1948 | ||
4e0ba8af JA |
1949 | if (td->exec_prerun) |
1950 | system(td->exec_prerun); | |
1951 | ||
ebac4655 JA |
1952 | while (td->loops--) { |
1953 | getrusage(RUSAGE_SELF, &td->ru_start); | |
1954 | gettimeofday(&td->start, NULL); | |
1955 | memcpy(&td->stat_sample_time, &td->start, sizeof(td->start)); | |
1956 | ||
1957 | if (td->ratemin) | |
1958 | memcpy(&td->lastrate, &td->stat_sample_time, sizeof(td->lastrate)); | |
1959 | ||
1960 | clear_io_state(td); | |
1961 | prune_io_piece_log(td); | |
1962 | ||
1963 | do_io(td); | |
1964 | ||
1965 | td->runtime[td->ddir] += mtime_since_now(&td->start); | |
aea47d44 | 1966 | if (td_rw(td) && td->io_bytes[td->ddir ^ 1]) |
3d60d1ed JA |
1967 | td->runtime[td->ddir ^ 1] = td->runtime[td->ddir]; |
1968 | ||
ebac4655 JA |
1969 | update_rusage_stat(td); |
1970 | ||
1971 | if (td->error || td->terminate) | |
1972 | break; | |
1973 | ||
1974 | if (td->verify == VERIFY_NONE) | |
1975 | continue; | |
1976 | ||
1977 | clear_io_state(td); | |
1978 | gettimeofday(&td->start, NULL); | |
1979 | ||
1980 | do_verify(td); | |
1981 | ||
1982 | td->runtime[DDIR_READ] += mtime_since_now(&td->start); | |
1983 | ||
1984 | if (td->error || td->terminate) | |
1985 | break; | |
1986 | } | |
1987 | ||
ebac4655 JA |
1988 | if (td->bw_log) |
1989 | finish_log(td, td->bw_log, "bw"); | |
1990 | if (td->slat_log) | |
1991 | finish_log(td, td->slat_log, "slat"); | |
1992 | if (td->clat_log) | |
1993 | finish_log(td, td->clat_log, "clat"); | |
843a7413 JA |
1994 | if (td->write_iolog) |
1995 | write_iolog_close(td); | |
4e0ba8af JA |
1996 | if (td->exec_postrun) |
1997 | system(td->exec_postrun); | |
ebac4655 JA |
1998 | |
1999 | if (exitall_on_terminate) | |
2000 | terminate_threads(td->groupid); | |
2001 | ||
2002 | err: | |
2003 | if (td->fd != -1) { | |
2004 | close(td->fd); | |
2005 | td->fd = -1; | |
2006 | } | |
2007 | if (td->mmap) | |
2008 | munmap(td->mmap, td->file_size); | |
4b5bd14c | 2009 | cleanup_allocs(td); |
ebac4655 JA |
2010 | cleanup_io(td); |
2011 | cleanup_io_u(td); | |
ebac4655 JA |
2012 | td_set_runstate(td, TD_EXITED); |
2013 | return NULL; | |
2014 | ||
2015 | } | |
2016 | ||
2017 | static void *fork_main(int shmid, int offset) | |
2018 | { | |
2019 | struct thread_data *td; | |
2020 | void *data; | |
2021 | ||
2022 | data = shmat(shmid, NULL, 0); | |
2023 | if (data == (void *) -1) { | |
2024 | perror("shmat"); | |
2025 | return NULL; | |
2026 | } | |
2027 | ||
2028 | td = data + offset * sizeof(struct thread_data); | |
2029 | thread_main(td); | |
2030 | shmdt(data); | |
2031 | return NULL; | |
2032 | } | |
2033 | ||
2034 | static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max, | |
2035 | double *mean, double *dev) | |
2036 | { | |
2037 | double n; | |
2038 | ||
2039 | if (is->samples == 0) | |
2040 | return 0; | |
2041 | ||
2042 | *min = is->min_val; | |
2043 | *max = is->max_val; | |
2044 | ||
2045 | n = (double) is->samples; | |
2046 | *mean = (double) is->val / n; | |
2047 | *dev = sqrt(((double) is->val_sq - (*mean * *mean) / n) / (n - 1)); | |
2048 | if (!(*min + *max) && !(*mean + *dev)) | |
2049 | return 0; | |
2050 | ||
2051 | return 1; | |
2052 | } | |
2053 | ||
2054 | static void show_ddir_status(struct thread_data *td, struct group_run_stats *rs, | |
2055 | int ddir) | |
2056 | { | |
2057 | char *ddir_str[] = { "read ", "write" }; | |
200bc855 JA |
2058 | unsigned long min, max; |
2059 | unsigned long long bw; | |
ebac4655 JA |
2060 | double mean, dev; |
2061 | ||
2062 | if (!td->runtime[ddir]) | |
2063 | return; | |
2064 | ||
2065 | bw = td->io_bytes[ddir] / td->runtime[ddir]; | |
200bc855 | 2066 | printf(" %s: io=%6lluMiB, bw=%6lluKiB/s, runt=%6lumsec\n", ddir_str[ddir], td->io_bytes[ddir] >> 20, bw, td->runtime[ddir]); |
ebac4655 JA |
2067 | |
2068 | if (calc_lat(&td->slat_stat[ddir], &min, &max, &mean, &dev)) | |
2069 | printf(" slat (msec): min=%5lu, max=%5lu, avg=%5.02f, dev=%5.02f\n", min, max, mean, dev); | |
2070 | ||
2071 | if (calc_lat(&td->clat_stat[ddir], &min, &max, &mean, &dev)) | |
2072 | printf(" clat (msec): min=%5lu, max=%5lu, avg=%5.02f, dev=%5.02f\n", min, max, mean, dev); | |
2073 | ||
2074 | if (calc_lat(&td->bw_stat[ddir], &min, &max, &mean, &dev)) { | |
2075 | double p_of_agg; | |
2076 | ||
2077 | p_of_agg = mean * 100 / (double) rs->agg[ddir]; | |
2078 | printf(" bw (KiB/s) : min=%5lu, max=%5lu, per=%3.2f%%, avg=%5.02f, dev=%5.02f\n", min, max, p_of_agg, mean, dev); | |
2079 | } | |
2080 | } | |
2081 | ||
2082 | static void show_thread_status(struct thread_data *td, | |
2083 | struct group_run_stats *rs) | |
2084 | { | |
2085 | double usr_cpu, sys_cpu; | |
2086 | ||
2087 | if (!(td->io_bytes[0] + td->io_bytes[1]) && !td->error) | |
2088 | return; | |
2089 | ||
2090 | printf("Client%d (groupid=%d): err=%2d:\n", td->thread_number, td->groupid, td->error); | |
2091 | ||
2092 | show_ddir_status(td, rs, td->ddir); | |
aea47d44 JA |
2093 | if (td->io_bytes[td->ddir ^ 1]) |
2094 | show_ddir_status(td, rs, td->ddir ^ 1); | |
ebac4655 JA |
2095 | |
2096 | if (td->runtime[0] + td->runtime[1]) { | |
2097 | double runt = td->runtime[0] + td->runtime[1]; | |
2098 | ||
2099 | usr_cpu = (double) td->usr_time * 100 / runt; | |
2100 | sys_cpu = (double) td->sys_time * 100 / runt; | |
2101 | } else { | |
2102 | usr_cpu = 0; | |
2103 | sys_cpu = 0; | |
2104 | } | |
2105 | ||
2106 | printf(" cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu\n", usr_cpu, sys_cpu, td->ctx); | |
2107 | } | |
2108 | ||
2109 | static void check_str_update(struct thread_data *td) | |
2110 | { | |
2111 | char c = run_str[td->thread_number - 1]; | |
2112 | ||
2113 | if (td->runstate == td->old_runstate) | |
2114 | return; | |
2115 | ||
2116 | switch (td->runstate) { | |
2117 | case TD_REAPED: | |
2118 | c = '_'; | |
2119 | break; | |
2120 | case TD_EXITED: | |
2121 | c = 'E'; | |
2122 | break; | |
2123 | case TD_RUNNING: | |
3d60d1ed JA |
2124 | if (td_rw(td)) { |
2125 | if (td->sequential) | |
2126 | c = 'M'; | |
2127 | else | |
2128 | c = 'm'; | |
2129 | } else if (td_read(td)) { | |
ebac4655 JA |
2130 | if (td->sequential) |
2131 | c = 'R'; | |
2132 | else | |
2133 | c = 'r'; | |
2134 | } else { | |
2135 | if (td->sequential) | |
2136 | c = 'W'; | |
2137 | else | |
2138 | c = 'w'; | |
2139 | } | |
2140 | break; | |
2141 | case TD_VERIFYING: | |
2142 | c = 'V'; | |
2143 | break; | |
2144 | case TD_CREATED: | |
2145 | c = 'C'; | |
2146 | break; | |
75154845 JA |
2147 | case TD_INITIALIZED: |
2148 | c = 'I'; | |
2149 | break; | |
ebac4655 JA |
2150 | case TD_NOT_CREATED: |
2151 | c = 'P'; | |
2152 | break; | |
2153 | default: | |
2154 | printf("state %d\n", td->runstate); | |
2155 | } | |
2156 | ||
2157 | run_str[td->thread_number - 1] = c; | |
2158 | td->old_runstate = td->runstate; | |
2159 | } | |
2160 | ||
5289b847 JA |
2161 | static void eta_to_str(char *str, int eta_sec) |
2162 | { | |
2163 | unsigned int d, h, m, s; | |
2164 | static int always_d, always_h; | |
2165 | ||
2166 | d = h = m = s = 0; | |
2167 | ||
2168 | s = eta_sec % 60; | |
2169 | eta_sec /= 60; | |
2170 | m = eta_sec % 60; | |
2171 | eta_sec /= 60; | |
2172 | h = eta_sec % 24; | |
2173 | eta_sec /= 24; | |
2174 | d = eta_sec; | |
2175 | ||
2176 | if (d || always_d) { | |
2177 | always_d = 1; | |
2178 | str += sprintf(str, "%02dd:", d); | |
2179 | } | |
2180 | if (h || always_h) { | |
2181 | always_h = 1; | |
2182 | str += sprintf(str, "%02dh:", h); | |
2183 | } | |
2184 | ||
2185 | str += sprintf(str, "%02dm:", m); | |
2186 | str += sprintf(str, "%02ds", s); | |
2187 | } | |
2188 | ||
6a0106a0 JA |
2189 | static int thread_eta(struct thread_data *td, unsigned long elapsed) |
2190 | { | |
2191 | unsigned long long bytes_total, bytes_done; | |
2192 | unsigned int eta_sec = 0; | |
2193 | ||
2194 | bytes_total = td->total_io_size; | |
3d60d1ed JA |
2195 | |
2196 | /* | |
2197 | * if writing, bytes_total will be twice the size. If mixing, | |
2198 | * assume a 50/50 split and thus bytes_total will be 50% larger. | |
2199 | */ | |
2200 | if (td->verify) { | |
2201 | if (td_rw(td)) | |
2202 | bytes_total = bytes_total * 3 / 2; | |
2203 | else | |
2204 | bytes_total <<= 1; | |
2205 | } | |
6a0106a0 JA |
2206 | if (td->zone_size && td->zone_skip) |
2207 | bytes_total /= (td->zone_skip / td->zone_size); | |
2208 | ||
2209 | if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING) { | |
2210 | double perc; | |
8b611c34 | 2211 | |
6a0106a0 JA |
2212 | bytes_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE]; |
2213 | perc = (double) bytes_done / (double) bytes_total; | |
2214 | if (perc > 1.0) | |
2215 | perc = 1.0; | |
2216 | ||
2217 | eta_sec = (elapsed * (1.0 / perc)) - elapsed; | |
2218 | ||
8b611c34 | 2219 | if (td->timeout && eta_sec > (td->timeout - elapsed)) |
6a0106a0 | 2220 | eta_sec = td->timeout - elapsed; |
75154845 JA |
2221 | } else if (td->runstate == TD_NOT_CREATED || td->runstate == TD_CREATED |
2222 | || td->runstate == TD_INITIALIZED) { | |
6a0106a0 JA |
2223 | int t_eta = 0, r_eta = 0; |
2224 | ||
2225 | /* | |
2226 | * We can only guess - assume it'll run the full timeout | |
2227 | * if given, otherwise assume it'll run at the specified rate. | |
2228 | */ | |
2229 | if (td->timeout) | |
2230 | t_eta = td->timeout + td->start_delay - elapsed; | |
2231 | if (td->rate) { | |
2232 | r_eta = (bytes_total / 1024) / td->rate; | |
2233 | r_eta += td->start_delay - elapsed; | |
2234 | } | |
2235 | ||
2236 | if (r_eta && t_eta) | |
2237 | eta_sec = min(r_eta, t_eta); | |
2238 | else if (r_eta) | |
2239 | eta_sec = r_eta; | |
2240 | else if (t_eta) | |
2241 | eta_sec = t_eta; | |
2242 | else | |
2243 | eta_sec = INT_MAX; | |
2244 | } else { | |
2245 | /* | |
2246 | * thread is already done | |
2247 | */ | |
2248 | eta_sec = 0; | |
2249 | } | |
2250 | ||
2251 | return eta_sec; | |
2252 | } | |
2253 | ||
ebac4655 JA |
2254 | static void print_thread_status(void) |
2255 | { | |
6a0106a0 JA |
2256 | unsigned long elapsed = time_since_now(&genesis); |
2257 | int i, nr_running, t_rate, m_rate, *eta_secs, eta_sec; | |
5289b847 | 2258 | char eta_str[32]; |
6a0106a0 JA |
2259 | double perc = 0.0; |
2260 | ||
2261 | eta_secs = malloc(thread_number * sizeof(int)); | |
2262 | memset(eta_secs, 0, thread_number * sizeof(int)); | |
ebac4655 | 2263 | |
ebac4655 JA |
2264 | nr_running = t_rate = m_rate = 0; |
2265 | for (i = 0; i < thread_number; i++) { | |
2266 | struct thread_data *td = &threads[i]; | |
2267 | ||
2268 | if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING){ | |
2269 | nr_running++; | |
2270 | t_rate += td->rate; | |
2271 | m_rate += td->ratemin; | |
2272 | } | |
2273 | ||
6a0106a0 JA |
2274 | if (elapsed >= 3) |
2275 | eta_secs[i] = thread_eta(td, elapsed); | |
8b611c34 JA |
2276 | else |
2277 | eta_secs[i] = INT_MAX; | |
ebac4655 JA |
2278 | |
2279 | check_str_update(td); | |
2280 | } | |
2281 | ||
6a0106a0 JA |
2282 | if (exitall_on_terminate) |
2283 | eta_sec = INT_MAX; | |
2284 | else | |
2285 | eta_sec = 0; | |
5289b847 | 2286 | |
6a0106a0 JA |
2287 | for (i = 0; i < thread_number; i++) { |
2288 | if (exitall_on_terminate) { | |
2289 | if (eta_secs[i] < eta_sec) | |
2290 | eta_sec = eta_secs[i]; | |
2291 | } else { | |
2292 | if (eta_secs[i] > eta_sec) | |
2293 | eta_sec = eta_secs[i]; | |
5289b847 | 2294 | } |
6a0106a0 | 2295 | } |
5289b847 | 2296 | |
8b611c34 | 2297 | if (eta_sec != INT_MAX && elapsed) { |
6a0106a0 JA |
2298 | perc = (double) elapsed / (double) (elapsed + eta_sec); |
2299 | eta_to_str(eta_str, eta_sec); | |
ebac4655 JA |
2300 | } |
2301 | ||
5289b847 | 2302 | printf("Threads now running (%d)", nr_running); |
ebac4655 JA |
2303 | if (m_rate || t_rate) |
2304 | printf(", commitrate %d/%dKiB/sec", t_rate, m_rate); | |
8b611c34 | 2305 | if (eta_sec != INT_MAX) { |
6a0106a0 JA |
2306 | perc *= 100.0; |
2307 | printf(": [%s] [%3.2f%% done] [eta %s]", run_str, perc,eta_str); | |
2308 | } | |
5289b847 | 2309 | printf("\r"); |
ebac4655 | 2310 | fflush(stdout); |
6a0106a0 | 2311 | free(eta_secs); |
ebac4655 JA |
2312 | } |
2313 | ||
2314 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) | |
2315 | { | |
2316 | int i; | |
2317 | ||
2318 | /* | |
2319 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
2320 | */ | |
2321 | for (i = 0; i < thread_number; i++) { | |
2322 | struct thread_data *td = &threads[i]; | |
2323 | ||
2324 | if (td->runstate != TD_EXITED) | |
2325 | continue; | |
2326 | ||
2327 | td_set_runstate(td, TD_REAPED); | |
2328 | ||
2329 | if (td->use_thread) { | |
2330 | long ret; | |
2331 | ||
2332 | if (pthread_join(td->thread, (void *) &ret)) | |
2333 | perror("thread_join"); | |
2334 | } else | |
2335 | waitpid(td->pid, NULL, 0); | |
2336 | ||
2337 | (*nr_running)--; | |
2338 | (*m_rate) -= td->ratemin; | |
2339 | (*t_rate) -= td->rate; | |
2340 | } | |
2341 | } | |
2342 | ||
fcb6ade2 JA |
2343 | static void fio_unpin_memory(void *pinned) |
2344 | { | |
2345 | if (pinned) { | |
2346 | if (munlock(pinned, mlock_size) < 0) | |
2347 | perror("munlock"); | |
2348 | munmap(pinned, mlock_size); | |
2349 | } | |
2350 | } | |
2351 | ||
2352 | static void *fio_pin_memory(void) | |
2353 | { | |
2354 | long pagesize, pages; | |
2355 | void *ptr; | |
2356 | ||
2357 | if (!mlock_size) | |
2358 | return NULL; | |
2359 | ||
2360 | /* | |
2361 | * Don't allow mlock of more than real_mem-128MB | |
2362 | */ | |
2363 | pagesize = sysconf(_SC_PAGESIZE); | |
2364 | pages = sysconf(_SC_PHYS_PAGES); | |
2365 | if (pages != -1 && pagesize != -1) { | |
2366 | unsigned long long real_mem = pages * pagesize; | |
2367 | ||
2368 | if ((mlock_size + 128 * 1024 * 1024) > real_mem) { | |
2369 | mlock_size = real_mem - 128 * 1024 * 1024; | |
2370 | printf("fio: limiting mlocked memory to %lluMiB\n", | |
2371 | mlock_size >> 20); | |
2372 | } | |
2373 | } | |
2374 | ||
2375 | ptr = mmap(NULL, mlock_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | OS_MAP_ANON, 0, 0); | |
2376 | if (!ptr) { | |
2377 | perror("malloc locked mem"); | |
2378 | return NULL; | |
2379 | } | |
2380 | if (mlock(ptr, mlock_size) < 0) { | |
2381 | munmap(ptr, mlock_size); | |
2382 | perror("mlock"); | |
2383 | return NULL; | |
2384 | } | |
2385 | ||
2386 | return ptr; | |
2387 | } | |
2388 | ||
ebac4655 JA |
2389 | static void run_threads(void) |
2390 | { | |
ebac4655 JA |
2391 | struct thread_data *td; |
2392 | unsigned long spent; | |
2393 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
fcb6ade2 JA |
2394 | void *mlocked_mem; |
2395 | ||
2396 | mlocked_mem = fio_pin_memory(); | |
ebac4655 JA |
2397 | |
2398 | printf("Starting %d thread%s\n", thread_number, thread_number > 1 ? "s" : ""); | |
fcb6ade2 | 2399 | fflush(stdout); |
c04f7ec3 | 2400 | |
4efa970e JA |
2401 | signal(SIGINT, sig_handler); |
2402 | signal(SIGALRM, sig_handler); | |
2403 | ||
ebac4655 JA |
2404 | todo = thread_number; |
2405 | nr_running = 0; | |
2406 | nr_started = 0; | |
2407 | m_rate = t_rate = 0; | |
2408 | ||
2409 | for (i = 0; i < thread_number; i++) { | |
2410 | td = &threads[i]; | |
2411 | ||
2412 | run_str[td->thread_number - 1] = 'P'; | |
2413 | ||
2414 | init_disk_util(td); | |
2415 | ||
2416 | if (!td->create_serialize) | |
2417 | continue; | |
2418 | ||
2419 | /* | |
2420 | * do file setup here so it happens sequentially, | |
2421 | * we don't want X number of threads getting their | |
2422 | * client data interspersed on disk | |
2423 | */ | |
2424 | if (setup_file(td)) { | |
2425 | td_set_runstate(td, TD_REAPED); | |
2426 | todo--; | |
2427 | } | |
2428 | } | |
2429 | ||
2430 | gettimeofday(&genesis, NULL); | |
2431 | ||
2432 | while (todo) { | |
75154845 JA |
2433 | struct thread_data *map[MAX_JOBS]; |
2434 | struct timeval this_start; | |
2435 | int this_jobs = 0, left; | |
2436 | ||
ebac4655 JA |
2437 | /* |
2438 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
2439 | */ | |
2440 | for (i = 0; i < thread_number; i++) { | |
2441 | td = &threads[i]; | |
2442 | ||
2443 | if (td->runstate != TD_NOT_CREATED) | |
2444 | continue; | |
2445 | ||
2446 | /* | |
2447 | * never got a chance to start, killed by other | |
2448 | * thread for some reason | |
2449 | */ | |
2450 | if (td->terminate) { | |
2451 | todo--; | |
2452 | continue; | |
2453 | } | |
2454 | ||
2455 | if (td->start_delay) { | |
2456 | spent = mtime_since_now(&genesis); | |
2457 | ||
2458 | if (td->start_delay * 1000 > spent) | |
2459 | continue; | |
2460 | } | |
2461 | ||
2462 | if (td->stonewall && (nr_started || nr_running)) | |
2463 | break; | |
2464 | ||
75154845 JA |
2465 | /* |
2466 | * Set state to created. Thread will transition | |
2467 | * to TD_INITIALIZED when it's done setting up. | |
2468 | */ | |
ebac4655 | 2469 | td_set_runstate(td, TD_CREATED); |
75154845 | 2470 | map[this_jobs++] = td; |
ebac4655 | 2471 | sem_init(&startup_sem, 0, 1); |
ebac4655 JA |
2472 | nr_started++; |
2473 | ||
2474 | if (td->use_thread) { | |
2475 | if (pthread_create(&td->thread, NULL, thread_main, td)) { | |
2476 | perror("thread_create"); | |
2477 | nr_started--; | |
2478 | } | |
2479 | } else { | |
2480 | if (fork()) | |
2481 | sem_wait(&startup_sem); | |
2482 | else { | |
2483 | fork_main(shm_id, i); | |
2484 | exit(0); | |
2485 | } | |
2486 | } | |
2487 | } | |
2488 | ||
2489 | /* | |
75154845 JA |
2490 | * Wait for the started threads to transition to |
2491 | * TD_INITIALIZED. | |
ebac4655 | 2492 | */ |
75154845 JA |
2493 | printf("fio: Waiting for threads to initialize...\n"); |
2494 | gettimeofday(&this_start, NULL); | |
2495 | left = this_jobs; | |
2496 | while (left) { | |
2497 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) | |
2498 | break; | |
2499 | ||
2500 | usleep(100000); | |
2501 | ||
2502 | for (i = 0; i < this_jobs; i++) { | |
2503 | td = map[i]; | |
2504 | if (!td) | |
2505 | continue; | |
b6f4d880 | 2506 | if (td->runstate == TD_INITIALIZED) { |
75154845 JA |
2507 | map[i] = NULL; |
2508 | left--; | |
b6f4d880 JA |
2509 | } else if (td->runstate >= TD_EXITED) { |
2510 | map[i] = NULL; | |
2511 | left--; | |
2512 | todo--; | |
2513 | nr_running++; /* work-around... */ | |
75154845 JA |
2514 | } |
2515 | } | |
2516 | } | |
2517 | ||
2518 | if (left) { | |
2519 | fprintf(stderr, "fio: %d jobs failed to start\n", left); | |
2520 | for (i = 0; i < this_jobs; i++) { | |
2521 | td = map[i]; | |
2522 | if (!td) | |
2523 | continue; | |
2524 | kill(td->pid, SIGTERM); | |
2525 | } | |
2526 | break; | |
2527 | } | |
2528 | ||
2529 | /* | |
b6f4d880 | 2530 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
75154845 JA |
2531 | */ |
2532 | printf("fio: Go for launch\n"); | |
ebac4655 JA |
2533 | for (i = 0; i < thread_number; i++) { |
2534 | td = &threads[i]; | |
2535 | ||
75154845 | 2536 | if (td->runstate != TD_INITIALIZED) |
ebac4655 JA |
2537 | continue; |
2538 | ||
2539 | td_set_runstate(td, TD_RUNNING); | |
2540 | nr_running++; | |
2541 | nr_started--; | |
2542 | m_rate += td->ratemin; | |
2543 | t_rate += td->rate; | |
75154845 | 2544 | todo--; |
ebac4655 JA |
2545 | sem_post(&td->mutex); |
2546 | } | |
2547 | ||
2548 | reap_threads(&nr_running, &t_rate, &m_rate); | |
2549 | ||
2550 | if (todo) | |
2551 | usleep(100000); | |
2552 | } | |
2553 | ||
2554 | while (nr_running) { | |
2555 | reap_threads(&nr_running, &t_rate, &m_rate); | |
2556 | usleep(10000); | |
2557 | } | |
2558 | ||
2559 | update_io_ticks(); | |
fcb6ade2 | 2560 | fio_unpin_memory(mlocked_mem); |
ebac4655 JA |
2561 | } |
2562 | ||
2563 | static void show_group_stats(struct group_run_stats *rs, int id) | |
2564 | { | |
2565 | printf("\nRun status group %d (all jobs):\n", id); | |
2566 | ||
2567 | if (rs->max_run[DDIR_READ]) | |
9104f874 | 2568 | printf(" READ: io=%lluMiB, aggrb=%llu, minb=%llu, maxb=%llu, mint=%llumsec, maxt=%llumsec\n", rs->io_mb[0], rs->agg[0], rs->min_bw[0], rs->max_bw[0], rs->min_run[0], rs->max_run[0]); |
ebac4655 | 2569 | if (rs->max_run[DDIR_WRITE]) |
9104f874 | 2570 | printf(" WRITE: io=%lluMiB, aggrb=%llu, minb=%llu, maxb=%llu, mint=%llumsec, maxt=%llumsec\n", rs->io_mb[1], rs->agg[1], rs->min_bw[1], rs->max_bw[1], rs->min_run[1], rs->max_run[1]); |
ebac4655 JA |
2571 | } |
2572 | ||
2573 | static void show_disk_util(void) | |
2574 | { | |
2575 | struct disk_util_stat *dus; | |
2576 | struct list_head *entry; | |
2577 | struct disk_util *du; | |
2578 | double util; | |
2579 | ||
2580 | printf("\nDisk stats (read/write):\n"); | |
2581 | ||
2582 | list_for_each(entry, &disk_list) { | |
2583 | du = list_entry(entry, struct disk_util, list); | |
2584 | dus = &du->dus; | |
2585 | ||
2586 | util = (double) 100 * du->dus.io_ticks / (double) du->msec; | |
2587 | if (util > 100.0) | |
2588 | util = 100.0; | |
2589 | ||
2590 | printf(" %s: ios=%u/%u, merge=%u/%u, ticks=%u/%u, in_queue=%u, util=%3.2f%%\n", du->name, dus->ios[0], dus->ios[1], dus->merges[0], dus->merges[1], dus->ticks[0], dus->ticks[1], dus->time_in_queue, util); | |
2591 | } | |
2592 | } | |
2593 | ||
2594 | static void show_run_stats(void) | |
2595 | { | |
2596 | struct group_run_stats *runstats, *rs; | |
2597 | struct thread_data *td; | |
2598 | int i; | |
2599 | ||
2600 | runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1)); | |
2601 | ||
2602 | for (i = 0; i < groupid + 1; i++) { | |
2603 | rs = &runstats[i]; | |
2604 | ||
2605 | memset(rs, 0, sizeof(*rs)); | |
2606 | rs->min_bw[0] = rs->min_run[0] = ~0UL; | |
2607 | rs->min_bw[1] = rs->min_run[1] = ~0UL; | |
2608 | } | |
2609 | ||
2610 | for (i = 0; i < thread_number; i++) { | |
200bc855 | 2611 | unsigned long long rbw, wbw; |
ebac4655 JA |
2612 | |
2613 | td = &threads[i]; | |
2614 | ||
2615 | if (td->error) { | |
2616 | printf("Client%d: %s\n", td->thread_number, td->verror); | |
2617 | continue; | |
2618 | } | |
2619 | ||
2620 | rs = &runstats[td->groupid]; | |
2621 | ||
2622 | if (td->runtime[0] < rs->min_run[0] || !rs->min_run[0]) | |
2623 | rs->min_run[0] = td->runtime[0]; | |
2624 | if (td->runtime[0] > rs->max_run[0]) | |
2625 | rs->max_run[0] = td->runtime[0]; | |
2626 | if (td->runtime[1] < rs->min_run[1] || !rs->min_run[1]) | |
2627 | rs->min_run[1] = td->runtime[1]; | |
2628 | if (td->runtime[1] > rs->max_run[1]) | |
2629 | rs->max_run[1] = td->runtime[1]; | |
2630 | ||
2631 | rbw = wbw = 0; | |
2632 | if (td->runtime[0]) | |
200bc855 | 2633 | rbw = td->io_bytes[0] / (unsigned long long) td->runtime[0]; |
ebac4655 | 2634 | if (td->runtime[1]) |
200bc855 | 2635 | wbw = td->io_bytes[1] / (unsigned long long) td->runtime[1]; |
ebac4655 JA |
2636 | |
2637 | if (rbw < rs->min_bw[0]) | |
2638 | rs->min_bw[0] = rbw; | |
2639 | if (wbw < rs->min_bw[1]) | |
2640 | rs->min_bw[1] = wbw; | |
2641 | if (rbw > rs->max_bw[0]) | |
2642 | rs->max_bw[0] = rbw; | |
2643 | if (wbw > rs->max_bw[1]) | |
2644 | rs->max_bw[1] = wbw; | |
2645 | ||
2646 | rs->io_mb[0] += td->io_bytes[0] >> 20; | |
2647 | rs->io_mb[1] += td->io_bytes[1] >> 20; | |
2648 | } | |
2649 | ||
2650 | for (i = 0; i < groupid + 1; i++) { | |
2651 | rs = &runstats[i]; | |
2652 | ||
2653 | if (rs->max_run[0]) | |
2654 | rs->agg[0] = (rs->io_mb[0]*1024*1000) / rs->max_run[0]; | |
2655 | if (rs->max_run[1]) | |
2656 | rs->agg[1] = (rs->io_mb[1]*1024*1000) / rs->max_run[1]; | |
2657 | } | |
2658 | ||
2659 | /* | |
2660 | * don't overwrite last signal output | |
2661 | */ | |
2662 | printf("\n"); | |
2663 | ||
2664 | for (i = 0; i < thread_number; i++) { | |
2665 | td = &threads[i]; | |
2666 | rs = &runstats[td->groupid]; | |
2667 | ||
2668 | show_thread_status(td, rs); | |
2669 | } | |
2670 | ||
2671 | for (i = 0; i < groupid + 1; i++) | |
2672 | show_group_stats(&runstats[i], i); | |
2673 | ||
2674 | show_disk_util(); | |
2675 | } | |
2676 | ||
2677 | int main(int argc, char *argv[]) | |
2678 | { | |
2679 | if (parse_options(argc, argv)) | |
2680 | return 1; | |
2681 | ||
2682 | if (!thread_number) { | |
2683 | printf("Nothing to do\n"); | |
2684 | return 1; | |
2685 | } | |
2686 | ||
2687 | disk_util_timer_arm(); | |
2688 | ||
2689 | run_threads(); | |
2690 | show_run_stats(); | |
2691 | ||
2692 | return 0; | |
2693 | } |