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 | ||
60 | /* | |
61 | * thread life cycle | |
62 | */ | |
63 | enum { | |
64 | TD_NOT_CREATED = 0, | |
65 | TD_CREATED, | |
66 | TD_RUNNING, | |
67 | TD_VERIFYING, | |
68 | TD_EXITED, | |
69 | TD_REAPED, | |
70 | }; | |
71 | ||
3d60d1ed | 72 | #define should_fsync(td) ((td_write(td) || td_rw(td)) && (!(td)->odirect || (td)->override_sync)) |
ebac4655 JA |
73 | |
74 | static sem_t startup_sem; | |
75 | ||
76 | #define TERMINATE_ALL (-1) | |
77 | ||
78 | static void terminate_threads(int group_id) | |
79 | { | |
80 | int i; | |
81 | ||
82 | for (i = 0; i < thread_number; i++) { | |
83 | struct thread_data *td = &threads[i]; | |
84 | ||
85 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { | |
86 | td->terminate = 1; | |
87 | td->start_delay = 0; | |
88 | } | |
89 | } | |
90 | } | |
91 | ||
92 | static void sig_handler(int sig) | |
93 | { | |
94 | switch (sig) { | |
95 | case SIGALRM: | |
96 | update_io_ticks(); | |
97 | disk_util_timer_arm(); | |
98 | print_thread_status(); | |
99 | break; | |
100 | default: | |
101 | printf("\nfio: terminating on signal\n"); | |
102 | fflush(stdout); | |
103 | terminate_threads(TERMINATE_ALL); | |
104 | break; | |
105 | } | |
106 | } | |
107 | ||
108 | static unsigned long utime_since(struct timeval *s, struct timeval *e) | |
109 | { | |
110 | double sec, usec; | |
111 | ||
112 | sec = e->tv_sec - s->tv_sec; | |
113 | usec = e->tv_usec - s->tv_usec; | |
114 | if (sec > 0 && usec < 0) { | |
115 | sec--; | |
116 | usec += 1000000; | |
117 | } | |
118 | ||
119 | sec *= (double) 1000000; | |
120 | ||
121 | return sec + usec; | |
122 | } | |
123 | ||
124 | static unsigned long utime_since_now(struct timeval *s) | |
125 | { | |
126 | struct timeval t; | |
127 | ||
128 | gettimeofday(&t, NULL); | |
129 | return utime_since(s, &t); | |
130 | } | |
131 | ||
132 | static unsigned long mtime_since(struct timeval *s, struct timeval *e) | |
133 | { | |
134 | double sec, usec; | |
135 | ||
136 | sec = e->tv_sec - s->tv_sec; | |
137 | usec = e->tv_usec - s->tv_usec; | |
138 | if (sec > 0 && usec < 0) { | |
139 | sec--; | |
140 | usec += 1000000; | |
141 | } | |
142 | ||
143 | sec *= (double) 1000; | |
144 | usec /= (double) 1000; | |
145 | ||
146 | return sec + usec; | |
147 | } | |
148 | ||
149 | static unsigned long mtime_since_now(struct timeval *s) | |
150 | { | |
151 | struct timeval t; | |
152 | ||
153 | gettimeofday(&t, NULL); | |
154 | return mtime_since(s, &t); | |
155 | } | |
156 | ||
157 | static inline unsigned long msec_now(struct timeval *s) | |
158 | { | |
159 | return s->tv_sec * 1000 + s->tv_usec / 1000; | |
160 | } | |
161 | ||
5289b847 JA |
162 | static unsigned long time_since_now(struct timeval *s) |
163 | { | |
164 | return mtime_since_now(s) / 1000; | |
165 | } | |
166 | ||
ebac4655 JA |
167 | static int random_map_free(struct thread_data *td, unsigned long long block) |
168 | { | |
169 | unsigned int idx = RAND_MAP_IDX(td, block); | |
170 | unsigned int bit = RAND_MAP_BIT(td, block); | |
171 | ||
172 | return (td->file_map[idx] & (1UL << bit)) == 0; | |
173 | } | |
174 | ||
175 | static int get_next_free_block(struct thread_data *td, unsigned long long *b) | |
176 | { | |
177 | int i; | |
178 | ||
179 | *b = 0; | |
180 | i = 0; | |
181 | while ((*b) * td->min_bs < td->io_size) { | |
182 | if (td->file_map[i] != -1UL) { | |
183 | *b += ffz(td->file_map[i]); | |
184 | return 0; | |
185 | } | |
186 | ||
187 | *b += BLOCKS_PER_MAP; | |
188 | i++; | |
189 | } | |
190 | ||
191 | return 1; | |
192 | } | |
193 | ||
194 | static void mark_random_map(struct thread_data *td, struct io_u *io_u) | |
195 | { | |
196 | unsigned long block = io_u->offset / td->min_bs; | |
197 | unsigned int blocks = 0; | |
198 | ||
199 | while (blocks < (io_u->buflen / td->min_bs)) { | |
200 | unsigned int idx, bit; | |
201 | ||
202 | if (!random_map_free(td, block)) | |
203 | break; | |
204 | ||
205 | idx = RAND_MAP_IDX(td, block); | |
206 | bit = RAND_MAP_BIT(td, block); | |
207 | ||
208 | assert(idx < td->num_maps); | |
209 | ||
210 | td->file_map[idx] |= (1UL << bit); | |
211 | block++; | |
212 | blocks++; | |
213 | } | |
214 | ||
215 | if ((blocks * td->min_bs) < io_u->buflen) | |
216 | io_u->buflen = blocks * td->min_bs; | |
217 | } | |
218 | ||
ebac4655 JA |
219 | static inline void add_stat_sample(struct io_stat *is, unsigned long val) |
220 | { | |
221 | if (val > is->max_val) | |
222 | is->max_val = val; | |
223 | if (val < is->min_val) | |
224 | is->min_val = val; | |
225 | ||
226 | is->val += val; | |
227 | is->val_sq += val * val; | |
228 | is->samples++; | |
229 | } | |
230 | ||
231 | static void add_log_sample(struct thread_data *td, struct io_log *iolog, | |
232 | unsigned long val, int ddir) | |
233 | { | |
234 | if (iolog->nr_samples == iolog->max_samples) { | |
235 | int new_size = sizeof(struct io_sample) * iolog->max_samples*2; | |
236 | ||
237 | iolog->log = realloc(iolog->log, new_size); | |
238 | iolog->max_samples <<= 1; | |
239 | } | |
240 | ||
241 | iolog->log[iolog->nr_samples].val = val; | |
242 | iolog->log[iolog->nr_samples].time = mtime_since_now(&td->epoch); | |
243 | iolog->log[iolog->nr_samples].ddir = ddir; | |
244 | iolog->nr_samples++; | |
245 | } | |
246 | ||
247 | static void add_clat_sample(struct thread_data *td, int ddir,unsigned long msec) | |
248 | { | |
249 | add_stat_sample(&td->clat_stat[ddir], msec); | |
250 | ||
251 | if (td->clat_log) | |
252 | add_log_sample(td, td->clat_log, msec, ddir); | |
253 | } | |
254 | ||
255 | static void add_slat_sample(struct thread_data *td, int ddir,unsigned long msec) | |
256 | { | |
257 | add_stat_sample(&td->slat_stat[ddir], msec); | |
258 | ||
259 | if (td->slat_log) | |
260 | add_log_sample(td, td->slat_log, msec, ddir); | |
261 | } | |
262 | ||
263 | static void add_bw_sample(struct thread_data *td, int ddir) | |
264 | { | |
265 | unsigned long spent = mtime_since_now(&td->stat_sample_time[ddir]); | |
266 | unsigned long rate; | |
267 | ||
268 | if (spent < td->bw_avg_time) | |
269 | return; | |
270 | ||
271 | rate = (td->this_io_bytes[ddir] - td->stat_io_bytes[ddir]) / spent; | |
272 | add_stat_sample(&td->bw_stat[ddir], rate); | |
273 | ||
274 | if (td->bw_log) | |
275 | add_log_sample(td, td->bw_log, rate, ddir); | |
276 | ||
277 | gettimeofday(&td->stat_sample_time[ddir], NULL); | |
278 | td->stat_io_bytes[ddir] = td->this_io_bytes[ddir]; | |
279 | } | |
280 | ||
20dc95c4 JA |
281 | static int get_next_offset(struct thread_data *td, unsigned long long *offset) |
282 | { | |
283 | unsigned long long b, rb; | |
284 | long r; | |
285 | ||
286 | if (!td->sequential) { | |
287 | unsigned long max_blocks = td->io_size / td->min_bs; | |
288 | int loops = 50; | |
289 | ||
290 | do { | |
291 | lrand48_r(&td->random_state, &r); | |
292 | b = ((max_blocks - 1) * r / (RAND_MAX+1.0)); | |
293 | rb = b + (td->file_offset / td->min_bs); | |
294 | loops--; | |
295 | } while (!random_map_free(td, rb) && loops); | |
296 | ||
297 | if (!loops) { | |
298 | if (get_next_free_block(td, &b)) | |
299 | return 1; | |
300 | } | |
301 | } else | |
302 | b = td->last_pos / td->min_bs; | |
303 | ||
304 | *offset = (b * td->min_bs) + td->file_offset; | |
838a3cd3 | 305 | if (*offset > td->real_file_size) |
20dc95c4 JA |
306 | return 1; |
307 | ||
308 | return 0; | |
309 | } | |
310 | ||
311 | static unsigned int get_next_buflen(struct thread_data *td) | |
312 | { | |
313 | unsigned int buflen; | |
314 | long r; | |
315 | ||
316 | if (td->min_bs == td->max_bs) | |
317 | buflen = td->min_bs; | |
318 | else { | |
319 | lrand48_r(&td->bsrange_state, &r); | |
320 | buflen = (1 + (double) (td->max_bs - 1) * r / (RAND_MAX + 1.0)); | |
321 | buflen = (buflen + td->min_bs - 1) & ~(td->min_bs - 1); | |
322 | } | |
323 | ||
324 | if (buflen > td->io_size - td->this_io_bytes[td->ddir]) | |
325 | buflen = td->io_size - td->this_io_bytes[td->ddir]; | |
326 | ||
327 | return buflen; | |
328 | } | |
329 | ||
ebac4655 JA |
330 | /* |
331 | * busy looping version for the last few usec | |
332 | */ | |
333 | static void __usec_sleep(unsigned int usec) | |
334 | { | |
335 | struct timeval start; | |
336 | ||
337 | gettimeofday(&start, NULL); | |
338 | while (utime_since_now(&start) < usec) | |
339 | nop; | |
340 | } | |
341 | ||
342 | static void usec_sleep(struct thread_data *td, unsigned long usec) | |
343 | { | |
344 | struct timespec req, rem; | |
345 | ||
346 | req.tv_sec = usec / 1000000; | |
347 | req.tv_nsec = usec * 1000 - req.tv_sec * 1000000; | |
348 | ||
349 | do { | |
350 | if (usec < 5000) { | |
351 | __usec_sleep(usec); | |
352 | break; | |
353 | } | |
354 | ||
355 | rem.tv_sec = rem.tv_nsec = 0; | |
356 | if (nanosleep(&req, &rem) < 0) | |
357 | break; | |
358 | ||
359 | if ((rem.tv_sec + rem.tv_nsec) == 0) | |
360 | break; | |
361 | ||
362 | req.tv_nsec = rem.tv_nsec; | |
363 | req.tv_sec = rem.tv_sec; | |
364 | ||
365 | usec = rem.tv_sec * 1000000 + rem.tv_nsec / 1000; | |
366 | } while (!td->terminate); | |
367 | } | |
368 | ||
369 | static void rate_throttle(struct thread_data *td, unsigned long time_spent, | |
370 | unsigned int bytes) | |
371 | { | |
372 | unsigned long usec_cycle; | |
373 | ||
374 | if (!td->rate) | |
375 | return; | |
376 | ||
377 | usec_cycle = td->rate_usec_cycle * (bytes / td->min_bs); | |
378 | ||
379 | if (time_spent < usec_cycle) { | |
380 | unsigned long s = usec_cycle - time_spent; | |
381 | ||
382 | td->rate_pending_usleep += s; | |
383 | if (td->rate_pending_usleep >= 100000) { | |
384 | usec_sleep(td, td->rate_pending_usleep); | |
385 | td->rate_pending_usleep = 0; | |
386 | } | |
387 | } else { | |
388 | long overtime = time_spent - usec_cycle; | |
389 | ||
390 | td->rate_pending_usleep -= overtime; | |
391 | } | |
392 | } | |
393 | ||
394 | static int check_min_rate(struct thread_data *td, struct timeval *now) | |
395 | { | |
396 | unsigned long spent; | |
397 | unsigned long rate; | |
398 | int ddir = td->ddir; | |
399 | ||
400 | /* | |
401 | * allow a 2 second settle period in the beginning | |
402 | */ | |
403 | if (mtime_since(&td->start, now) < 2000) | |
404 | return 0; | |
405 | ||
406 | /* | |
407 | * if rate blocks is set, sample is running | |
408 | */ | |
409 | if (td->rate_bytes) { | |
410 | spent = mtime_since(&td->lastrate, now); | |
411 | if (spent < td->ratecycle) | |
412 | return 0; | |
413 | ||
414 | rate = (td->this_io_bytes[ddir] - td->rate_bytes) / spent; | |
415 | if (rate < td->ratemin) { | |
416 | printf("Client%d: min rate %d not met, got %ldKiB/sec\n", td->thread_number, td->ratemin, rate); | |
417 | if (rate_quit) | |
418 | terminate_threads(td->groupid); | |
419 | return 1; | |
420 | } | |
421 | } | |
422 | ||
423 | td->rate_bytes = td->this_io_bytes[ddir]; | |
424 | memcpy(&td->lastrate, now, sizeof(*now)); | |
425 | return 0; | |
426 | } | |
427 | ||
428 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) | |
429 | { | |
430 | if (!td->timeout) | |
431 | return 0; | |
432 | if (mtime_since(&td->epoch, t) >= td->timeout * 1000) | |
433 | return 1; | |
434 | ||
435 | return 0; | |
436 | } | |
437 | ||
438 | static void fill_random_bytes(struct thread_data *td, | |
439 | unsigned char *p, unsigned int len) | |
440 | { | |
441 | unsigned int todo; | |
442 | double r; | |
443 | ||
444 | while (len) { | |
445 | drand48_r(&td->verify_state, &r); | |
446 | ||
447 | /* | |
448 | * lrand48_r seems to be broken and only fill the bottom | |
449 | * 32-bits, even on 64-bit archs with 64-bit longs | |
450 | */ | |
451 | todo = sizeof(r); | |
452 | if (todo > len) | |
453 | todo = len; | |
454 | ||
455 | memcpy(p, &r, todo); | |
456 | ||
457 | len -= todo; | |
458 | p += todo; | |
459 | } | |
460 | } | |
461 | ||
462 | static void hexdump(void *buffer, int len) | |
463 | { | |
464 | unsigned char *p = buffer; | |
465 | int i; | |
466 | ||
467 | for (i = 0; i < len; i++) | |
468 | printf("%02x", p[i]); | |
469 | printf("\n"); | |
470 | } | |
471 | ||
472 | static int verify_io_u_crc32(struct verify_header *hdr, struct io_u *io_u) | |
473 | { | |
474 | unsigned char *p = (unsigned char *) io_u->buf; | |
475 | unsigned long c; | |
476 | int ret; | |
477 | ||
478 | p += sizeof(*hdr); | |
479 | c = crc32(p, hdr->len - sizeof(*hdr)); | |
480 | ret = c != hdr->crc32; | |
481 | ||
482 | if (ret) { | |
483 | fprintf(stderr, "crc32: verify failed at %llu/%u\n", io_u->offset, io_u->buflen); | |
484 | fprintf(stderr, "crc32: wanted %lx, got %lx\n", hdr->crc32, c); | |
485 | } | |
486 | ||
487 | return ret; | |
488 | } | |
489 | ||
490 | static int verify_io_u_md5(struct verify_header *hdr, struct io_u *io_u) | |
491 | { | |
492 | unsigned char *p = (unsigned char *) io_u->buf; | |
493 | struct md5_ctx md5_ctx; | |
494 | int ret; | |
495 | ||
496 | memset(&md5_ctx, 0, sizeof(md5_ctx)); | |
497 | p += sizeof(*hdr); | |
498 | md5_update(&md5_ctx, p, hdr->len - sizeof(*hdr)); | |
499 | ||
500 | ret = memcmp(hdr->md5_digest, md5_ctx.hash, sizeof(md5_ctx.hash)); | |
501 | if (ret) { | |
502 | fprintf(stderr, "md5: verify failed at %llu/%u\n", io_u->offset, io_u->buflen); | |
503 | hexdump(hdr->md5_digest, sizeof(hdr->md5_digest)); | |
504 | hexdump(md5_ctx.hash, sizeof(md5_ctx.hash)); | |
505 | } | |
506 | ||
507 | return ret; | |
508 | } | |
509 | ||
510 | static int verify_io_u(struct io_u *io_u) | |
511 | { | |
512 | struct verify_header *hdr = (struct verify_header *) io_u->buf; | |
513 | int ret; | |
514 | ||
515 | if (hdr->fio_magic != FIO_HDR_MAGIC) | |
516 | return 1; | |
517 | ||
518 | if (hdr->verify_type == VERIFY_MD5) | |
519 | ret = verify_io_u_md5(hdr, io_u); | |
520 | else if (hdr->verify_type == VERIFY_CRC32) | |
521 | ret = verify_io_u_crc32(hdr, io_u); | |
522 | else { | |
523 | fprintf(stderr, "Bad verify type %d\n", hdr->verify_type); | |
524 | ret = 1; | |
525 | } | |
526 | ||
527 | return ret; | |
528 | } | |
529 | ||
530 | static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len) | |
531 | { | |
532 | hdr->crc32 = crc32(p, len); | |
533 | } | |
534 | ||
535 | static void fill_md5(struct verify_header *hdr, void *p, unsigned int len) | |
536 | { | |
537 | struct md5_ctx md5_ctx; | |
538 | ||
539 | memset(&md5_ctx, 0, sizeof(md5_ctx)); | |
540 | md5_update(&md5_ctx, p, len); | |
541 | memcpy(hdr->md5_digest, md5_ctx.hash, sizeof(md5_ctx.hash)); | |
542 | } | |
543 | ||
3d60d1ed JA |
544 | unsigned int hweight32(unsigned int w) |
545 | { | |
546 | unsigned int res = w - ((w >> 1) & 0x55555555); | |
547 | ||
548 | res = (res & 0x33333333) + ((res >> 2) & 0x33333333); | |
549 | res = (res + (res >> 4)) & 0x0F0F0F0F; | |
550 | res = res + (res >> 8); | |
551 | ||
552 | return (res + (res >> 16)) & 0x000000FF; | |
553 | } | |
554 | ||
555 | unsigned long hweight64(unsigned long long w) | |
556 | { | |
557 | #if __WORDSIZE == 32 | |
558 | return hweight32((unsigned int)(w >> 32)) + hweight32((unsigned int)w); | |
559 | #elif __WORDSIZE == 64 | |
560 | unsigned long long v = w - ((w >> 1) & 0x5555555555555555ul); | |
561 | ||
562 | v = (v & 0x3333333333333333ul) + ((v >> 2) & 0x3333333333333333ul); | |
563 | v = (v + (v >> 4)) & 0x0F0F0F0F0F0F0F0Ful; | |
564 | v = v + (v >> 8); | |
565 | v = v + (v >> 16); | |
566 | ||
567 | return (v + (v >> 32)) & 0x00000000000000FFul; | |
568 | #else | |
569 | #error __WORDSIZE not defined | |
570 | #endif | |
571 | } | |
572 | ||
573 | static int get_rw_ddir(struct thread_data *td) | |
574 | { | |
575 | /* | |
576 | * perhaps cheasy, but use the hamming weight of the position | |
577 | * as a randomizer for data direction. | |
578 | */ | |
579 | if (td_rw(td)) | |
580 | return hweight64(td->last_pos) & 1; | |
581 | else if (td_read(td)) | |
582 | return DDIR_READ; | |
583 | else | |
584 | return DDIR_WRITE; | |
585 | } | |
586 | ||
ebac4655 JA |
587 | /* |
588 | * fill body of io_u->buf with random data and add a header with the | |
589 | * (eg) sha1sum of that data. | |
590 | */ | |
591 | static void populate_io_u(struct thread_data *td, struct io_u *io_u) | |
592 | { | |
593 | unsigned char *p = (unsigned char *) io_u->buf; | |
594 | struct verify_header hdr; | |
595 | ||
596 | hdr.fio_magic = FIO_HDR_MAGIC; | |
597 | hdr.len = io_u->buflen; | |
598 | p += sizeof(hdr); | |
599 | fill_random_bytes(td, p, io_u->buflen - sizeof(hdr)); | |
600 | ||
601 | if (td->verify == VERIFY_MD5) { | |
602 | fill_md5(&hdr, p, io_u->buflen - sizeof(hdr)); | |
603 | hdr.verify_type = VERIFY_MD5; | |
604 | } else { | |
605 | fill_crc32(&hdr, p, io_u->buflen - sizeof(hdr)); | |
606 | hdr.verify_type = VERIFY_CRC32; | |
607 | } | |
608 | ||
609 | memcpy(io_u->buf, &hdr, sizeof(hdr)); | |
610 | } | |
611 | ||
aea47d44 | 612 | static int td_io_prep(struct thread_data *td, struct io_u *io_u) |
20dc95c4 | 613 | { |
20dc95c4 JA |
614 | if (td->io_prep && td->io_prep(td, io_u)) |
615 | return 1; | |
616 | ||
617 | return 0; | |
618 | } | |
619 | ||
b1ff3403 | 620 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
ebac4655 JA |
621 | { |
622 | list_del(&io_u->list); | |
623 | list_add(&io_u->list, &td->io_u_freelist); | |
624 | td->cur_depth--; | |
625 | } | |
626 | ||
aea47d44 JA |
627 | static int fill_io_u(struct thread_data *td, struct io_u *io_u) |
628 | { | |
629 | /* | |
630 | * If using an iolog, grab next piece if any available. | |
631 | */ | |
632 | if (td->iolog) { | |
633 | struct io_piece *ipo; | |
634 | ||
635 | if (list_empty(&td->io_log_list)) | |
636 | return 1; | |
637 | ||
638 | ipo = list_entry(td->io_log_list.next, struct io_piece, list); | |
639 | list_del(&ipo->list); | |
640 | io_u->offset = ipo->offset; | |
641 | io_u->buflen = ipo->len; | |
642 | io_u->ddir = ipo->ddir; | |
643 | free(ipo); | |
644 | return 0; | |
645 | } | |
646 | ||
647 | /* | |
648 | * No log, let the seq/rand engine retrieve the next position. | |
649 | */ | |
650 | if (!get_next_offset(td, &io_u->offset)) { | |
651 | io_u->buflen = get_next_buflen(td); | |
652 | ||
653 | if (io_u->buflen) { | |
654 | io_u->ddir = get_rw_ddir(td); | |
655 | return 0; | |
656 | } | |
657 | } | |
658 | ||
659 | return 1; | |
660 | } | |
661 | ||
ebac4655 JA |
662 | #define queue_full(td) (list_empty(&(td)->io_u_freelist)) |
663 | ||
b1ff3403 | 664 | struct io_u *__get_io_u(struct thread_data *td) |
ebac4655 JA |
665 | { |
666 | struct io_u *io_u; | |
667 | ||
668 | if (queue_full(td)) | |
669 | return NULL; | |
670 | ||
671 | io_u = list_entry(td->io_u_freelist.next, struct io_u, list); | |
672 | io_u->error = 0; | |
673 | io_u->resid = 0; | |
674 | list_del(&io_u->list); | |
675 | list_add(&io_u->list, &td->io_u_busylist); | |
676 | td->cur_depth++; | |
677 | return io_u; | |
678 | } | |
679 | ||
ebac4655 JA |
680 | static struct io_u *get_io_u(struct thread_data *td) |
681 | { | |
682 | struct io_u *io_u; | |
683 | ||
684 | io_u = __get_io_u(td); | |
685 | if (!io_u) | |
686 | return NULL; | |
687 | ||
20dc95c4 JA |
688 | if (td->zone_bytes >= td->zone_size) { |
689 | td->zone_bytes = 0; | |
690 | td->last_pos += td->zone_skip; | |
691 | } | |
692 | ||
aea47d44 | 693 | if (fill_io_u(td, io_u)) { |
ebac4655 JA |
694 | put_io_u(td, io_u); |
695 | return NULL; | |
696 | } | |
697 | ||
838a3cd3 JA |
698 | if (io_u->buflen + io_u->offset > td->real_file_size) |
699 | io_u->buflen = td->real_file_size - io_u->offset; | |
ebac4655 JA |
700 | |
701 | if (!io_u->buflen) { | |
702 | put_io_u(td, io_u); | |
703 | return NULL; | |
704 | } | |
705 | ||
aea47d44 | 706 | if (!td->iolog && !td->sequential) |
ebac4655 JA |
707 | mark_random_map(td, io_u); |
708 | ||
20dc95c4 | 709 | td->last_pos += io_u->buflen; |
ebac4655 JA |
710 | |
711 | if (td->verify != VERIFY_NONE) | |
712 | populate_io_u(td, io_u); | |
713 | ||
aea47d44 | 714 | if (td_io_prep(td, io_u)) { |
ebac4655 JA |
715 | put_io_u(td, io_u); |
716 | return NULL; | |
717 | } | |
718 | ||
719 | gettimeofday(&io_u->start_time, NULL); | |
720 | return io_u; | |
721 | } | |
722 | ||
723 | static inline void td_set_runstate(struct thread_data *td, int runstate) | |
724 | { | |
725 | td->old_runstate = td->runstate; | |
726 | td->runstate = runstate; | |
727 | } | |
728 | ||
aea47d44 | 729 | static int get_next_verify(struct thread_data *td, struct io_u *io_u) |
ebac4655 JA |
730 | { |
731 | struct io_piece *ipo; | |
732 | ||
733 | if (list_empty(&td->io_hist_list)) | |
734 | return 1; | |
735 | ||
736 | ipo = list_entry(td->io_hist_list.next, struct io_piece, list); | |
737 | list_del(&ipo->list); | |
738 | ||
aea47d44 JA |
739 | io_u->offset = ipo->offset; |
740 | io_u->buflen = ipo->len; | |
741 | io_u->ddir = DDIR_READ; | |
ebac4655 JA |
742 | free(ipo); |
743 | return 0; | |
744 | } | |
745 | ||
746 | static void prune_io_piece_log(struct thread_data *td) | |
747 | { | |
748 | struct io_piece *ipo; | |
749 | ||
750 | while (!list_empty(&td->io_hist_list)) { | |
751 | ipo = list_entry(td->io_hist_list.next, struct io_piece, list); | |
752 | ||
753 | list_del(&ipo->list); | |
754 | free(ipo); | |
755 | } | |
756 | } | |
757 | ||
758 | /* | |
759 | * log a succesful write, so we can unwind the log for verify | |
760 | */ | |
761 | static void log_io_piece(struct thread_data *td, struct io_u *io_u) | |
762 | { | |
763 | struct io_piece *ipo = malloc(sizeof(struct io_piece)); | |
764 | struct list_head *entry; | |
765 | ||
766 | INIT_LIST_HEAD(&ipo->list); | |
767 | ipo->offset = io_u->offset; | |
768 | ipo->len = io_u->buflen; | |
769 | ||
770 | /* | |
771 | * for random io where the writes extend the file, it will typically | |
772 | * be laid out with the block scattered as written. it's faster to | |
773 | * read them in in that order again, so don't sort | |
774 | */ | |
775 | if (td->sequential || !td->overwrite) { | |
776 | list_add_tail(&ipo->list, &td->io_hist_list); | |
777 | return; | |
778 | } | |
779 | ||
780 | /* | |
781 | * for random io, sort the list so verify will run faster | |
782 | */ | |
783 | entry = &td->io_hist_list; | |
784 | while ((entry = entry->prev) != &td->io_hist_list) { | |
785 | struct io_piece *__ipo = list_entry(entry, struct io_piece, list); | |
786 | ||
787 | if (__ipo->offset < ipo->offset) | |
788 | break; | |
789 | } | |
790 | ||
791 | list_add(&ipo->list, entry); | |
792 | } | |
793 | ||
aea47d44 JA |
794 | static int init_iolog(struct thread_data *td) |
795 | { | |
796 | unsigned long long offset; | |
797 | unsigned int bytes; | |
798 | char *str, *p; | |
799 | FILE *f; | |
800 | int rw, i, reads, writes; | |
801 | ||
802 | if (!td->iolog) | |
803 | return 0; | |
804 | ||
805 | f = fopen(td->iolog_file, "r"); | |
806 | if (!f) { | |
807 | perror("fopen iolog"); | |
808 | return 1; | |
809 | } | |
810 | ||
811 | str = malloc(4096); | |
812 | reads = writes = i = 0; | |
813 | while ((p = fgets(str, 4096, f)) != NULL) { | |
814 | struct io_piece *ipo; | |
815 | ||
816 | if (sscanf(p, "%d,%llu,%u", &rw, &offset, &bytes) != 3) { | |
817 | fprintf(stderr, "bad iolog: %s\n", p); | |
818 | continue; | |
819 | } | |
820 | if (rw == DDIR_READ) | |
821 | reads++; | |
822 | else if (rw == DDIR_WRITE) | |
823 | writes++; | |
824 | else { | |
825 | fprintf(stderr, "bad ddir: %d\n", rw); | |
826 | continue; | |
827 | } | |
828 | ||
829 | ipo = malloc(sizeof(*ipo)); | |
830 | INIT_LIST_HEAD(&ipo->list); | |
831 | ipo->offset = offset; | |
832 | ipo->len = bytes; | |
833 | if (bytes > td->max_bs) | |
834 | td->max_bs = bytes; | |
835 | ipo->ddir = rw; | |
836 | list_add_tail(&ipo->list, &td->io_log_list); | |
837 | i++; | |
838 | } | |
839 | ||
840 | free(str); | |
841 | fclose(f); | |
842 | ||
843 | if (!i) | |
844 | return 1; | |
845 | ||
846 | if (reads && !writes) | |
847 | td->ddir = DDIR_READ; | |
848 | else if (!reads && writes) | |
849 | td->ddir = DDIR_READ; | |
850 | else | |
851 | td->iomix = 1; | |
852 | ||
853 | return 0; | |
854 | } | |
855 | ||
ebac4655 JA |
856 | static int sync_td(struct thread_data *td) |
857 | { | |
858 | if (td->io_sync) | |
859 | return td->io_sync(td); | |
860 | ||
861 | return 0; | |
862 | } | |
863 | ||
864 | static int io_u_getevents(struct thread_data *td, int min, int max, | |
865 | struct timespec *t) | |
866 | { | |
867 | return td->io_getevents(td, min, max, t); | |
868 | } | |
869 | ||
870 | static int io_u_queue(struct thread_data *td, struct io_u *io_u) | |
871 | { | |
872 | gettimeofday(&io_u->issue_time, NULL); | |
873 | ||
874 | return td->io_queue(td, io_u); | |
875 | } | |
876 | ||
877 | #define iocb_time(iocb) ((unsigned long) (iocb)->data) | |
878 | ||
879 | static void io_completed(struct thread_data *td, struct io_u *io_u, | |
880 | struct io_completion_data *icd) | |
881 | { | |
882 | struct timeval e; | |
883 | unsigned long msec; | |
884 | ||
885 | gettimeofday(&e, NULL); | |
886 | ||
887 | if (!io_u->error) { | |
20dc95c4 | 888 | unsigned int bytes = io_u->buflen - io_u->resid; |
3d60d1ed | 889 | const int idx = io_u->ddir; |
ebac4655 JA |
890 | |
891 | td->io_blocks[idx]++; | |
20dc95c4 JA |
892 | td->io_bytes[idx] += bytes; |
893 | td->zone_bytes += bytes; | |
894 | td->this_io_bytes[idx] += bytes; | |
ebac4655 JA |
895 | |
896 | msec = mtime_since(&io_u->issue_time, &e); | |
897 | ||
3d60d1ed JA |
898 | add_clat_sample(td, idx, msec); |
899 | add_bw_sample(td, idx); | |
ebac4655 | 900 | |
3d60d1ed | 901 | if ((td_rw(td) || td_write(td)) && idx == DDIR_WRITE) |
ebac4655 JA |
902 | log_io_piece(td, io_u); |
903 | ||
20dc95c4 | 904 | icd->bytes_done[idx] += bytes; |
ebac4655 JA |
905 | } else |
906 | icd->error = io_u->error; | |
907 | } | |
908 | ||
909 | static void ios_completed(struct thread_data *td,struct io_completion_data *icd) | |
910 | { | |
911 | struct io_u *io_u; | |
912 | int i; | |
913 | ||
914 | icd->error = 0; | |
915 | icd->bytes_done[0] = icd->bytes_done[1] = 0; | |
916 | ||
917 | for (i = 0; i < icd->nr; i++) { | |
918 | io_u = td->io_event(td, i); | |
919 | ||
920 | io_completed(td, io_u, icd); | |
921 | put_io_u(td, io_u); | |
922 | } | |
923 | } | |
924 | ||
925 | static void cleanup_pending_aio(struct thread_data *td) | |
926 | { | |
927 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0}; | |
928 | struct list_head *entry, *n; | |
929 | struct io_completion_data icd; | |
930 | struct io_u *io_u; | |
931 | int r; | |
932 | ||
933 | /* | |
934 | * get immediately available events, if any | |
935 | */ | |
936 | r = io_u_getevents(td, 0, td->cur_depth, &ts); | |
937 | if (r > 0) { | |
938 | icd.nr = r; | |
939 | ios_completed(td, &icd); | |
940 | } | |
941 | ||
942 | /* | |
943 | * now cancel remaining active events | |
944 | */ | |
945 | if (td->io_cancel) { | |
946 | list_for_each_safe(entry, n, &td->io_u_busylist) { | |
947 | io_u = list_entry(entry, struct io_u, list); | |
948 | ||
949 | r = td->io_cancel(td, io_u); | |
950 | if (!r) | |
951 | put_io_u(td, io_u); | |
952 | } | |
953 | } | |
954 | ||
955 | if (td->cur_depth) { | |
956 | r = io_u_getevents(td, td->cur_depth, td->cur_depth, NULL); | |
957 | if (r > 0) { | |
958 | icd.nr = r; | |
959 | ios_completed(td, &icd); | |
960 | } | |
961 | } | |
962 | } | |
963 | ||
964 | static int do_io_u_verify(struct thread_data *td, struct io_u **io_u) | |
965 | { | |
966 | struct io_u *v_io_u = *io_u; | |
967 | int ret = 0; | |
968 | ||
969 | if (v_io_u) { | |
970 | ret = verify_io_u(v_io_u); | |
971 | put_io_u(td, v_io_u); | |
972 | *io_u = NULL; | |
973 | } | |
974 | ||
975 | return ret; | |
976 | } | |
977 | ||
978 | static void do_verify(struct thread_data *td) | |
979 | { | |
980 | struct timeval t; | |
981 | struct io_u *io_u, *v_io_u = NULL; | |
982 | struct io_completion_data icd; | |
983 | int ret; | |
984 | ||
985 | td_set_runstate(td, TD_VERIFYING); | |
986 | ||
987 | do { | |
988 | if (td->terminate) | |
989 | break; | |
990 | ||
991 | gettimeofday(&t, NULL); | |
992 | if (runtime_exceeded(td, &t)) | |
993 | break; | |
994 | ||
995 | io_u = __get_io_u(td); | |
996 | if (!io_u) | |
997 | break; | |
998 | ||
aea47d44 | 999 | if (get_next_verify(td, io_u)) { |
ebac4655 JA |
1000 | put_io_u(td, io_u); |
1001 | break; | |
1002 | } | |
1003 | ||
aea47d44 | 1004 | if (td_io_prep(td, io_u)) { |
ebac4655 JA |
1005 | put_io_u(td, io_u); |
1006 | break; | |
1007 | } | |
1008 | ||
1009 | ret = io_u_queue(td, io_u); | |
1010 | if (ret) { | |
1011 | put_io_u(td, io_u); | |
1012 | td_verror(td, ret); | |
1013 | break; | |
1014 | } | |
1015 | ||
1016 | /* | |
1017 | * we have one pending to verify, do that while | |
1018 | * we are doing io on the next one | |
1019 | */ | |
1020 | if (do_io_u_verify(td, &v_io_u)) | |
1021 | break; | |
1022 | ||
1023 | ret = io_u_getevents(td, 1, 1, NULL); | |
1024 | if (ret != 1) { | |
1025 | if (ret < 0) | |
1026 | td_verror(td, ret); | |
1027 | break; | |
1028 | } | |
1029 | ||
1030 | v_io_u = td->io_event(td, 0); | |
1031 | icd.nr = 1; | |
1032 | icd.error = 0; | |
1033 | io_completed(td, v_io_u, &icd); | |
1034 | ||
1035 | if (icd.error) { | |
1036 | td_verror(td, icd.error); | |
1037 | put_io_u(td, v_io_u); | |
1038 | v_io_u = NULL; | |
1039 | break; | |
1040 | } | |
1041 | ||
ebac4655 JA |
1042 | /* |
1043 | * if we can't submit more io, we need to verify now | |
1044 | */ | |
1045 | if (queue_full(td) && do_io_u_verify(td, &v_io_u)) | |
1046 | break; | |
1047 | ||
1048 | } while (1); | |
1049 | ||
1050 | do_io_u_verify(td, &v_io_u); | |
1051 | ||
1052 | if (td->cur_depth) | |
1053 | cleanup_pending_aio(td); | |
1054 | ||
1055 | td_set_runstate(td, TD_RUNNING); | |
1056 | } | |
1057 | ||
1058 | static void do_io(struct thread_data *td) | |
1059 | { | |
1060 | struct io_completion_data icd; | |
1061 | struct timeval s, e; | |
1062 | unsigned long usec; | |
1063 | ||
1064 | while (td->this_io_bytes[td->ddir] < td->io_size) { | |
1065 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0}; | |
1066 | struct timespec *timeout; | |
1067 | int ret, min_evts = 0; | |
1068 | struct io_u *io_u; | |
1069 | ||
1070 | if (td->terminate) | |
1071 | break; | |
1072 | ||
1073 | io_u = get_io_u(td); | |
1074 | if (!io_u) | |
1075 | break; | |
1076 | ||
1077 | memcpy(&s, &io_u->start_time, sizeof(s)); | |
1078 | ||
1079 | ret = io_u_queue(td, io_u); | |
1080 | if (ret) { | |
1081 | put_io_u(td, io_u); | |
1082 | td_verror(td, ret); | |
1083 | break; | |
1084 | } | |
1085 | ||
1086 | add_slat_sample(td, io_u->ddir, mtime_since(&io_u->start_time, &io_u->issue_time)); | |
1087 | ||
1088 | if (td->cur_depth < td->iodepth) { | |
1089 | timeout = &ts; | |
1090 | min_evts = 0; | |
1091 | } else { | |
1092 | timeout = NULL; | |
1093 | min_evts = 1; | |
1094 | } | |
1095 | ||
1096 | ret = io_u_getevents(td, min_evts, td->cur_depth, timeout); | |
1097 | if (ret < 0) { | |
1098 | td_verror(td, ret); | |
1099 | break; | |
1100 | } else if (!ret) | |
1101 | continue; | |
1102 | ||
1103 | icd.nr = ret; | |
1104 | ios_completed(td, &icd); | |
1105 | if (icd.error) { | |
1106 | td_verror(td, icd.error); | |
1107 | break; | |
1108 | } | |
1109 | ||
1110 | /* | |
1111 | * the rate is batched for now, it should work for batches | |
1112 | * of completions except the very first one which may look | |
1113 | * a little bursty | |
1114 | */ | |
1115 | gettimeofday(&e, NULL); | |
1116 | usec = utime_since(&s, &e); | |
1117 | ||
1118 | rate_throttle(td, usec, icd.bytes_done[td->ddir]); | |
1119 | ||
1120 | if (check_min_rate(td, &e)) { | |
1121 | td_verror(td, ENOMEM); | |
1122 | break; | |
1123 | } | |
1124 | ||
1125 | if (runtime_exceeded(td, &e)) | |
1126 | break; | |
1127 | ||
1128 | if (td->thinktime) | |
1129 | usec_sleep(td, td->thinktime); | |
1130 | ||
1131 | if (should_fsync(td) && td->fsync_blocks && | |
1132 | (td->io_blocks[DDIR_WRITE] % td->fsync_blocks) == 0) | |
1133 | sync_td(td); | |
1134 | } | |
1135 | ||
1136 | if (td->cur_depth) | |
1137 | cleanup_pending_aio(td); | |
1138 | ||
2f844d30 | 1139 | if (should_fsync(td) && td->fsync_blocks) |
ebac4655 JA |
1140 | sync_td(td); |
1141 | } | |
1142 | ||
1143 | static void cleanup_io(struct thread_data *td) | |
1144 | { | |
1145 | if (td->io_cleanup) | |
1146 | td->io_cleanup(td); | |
1147 | } | |
1148 | ||
1149 | static int init_io(struct thread_data *td) | |
1150 | { | |
1151 | if (td->io_engine == FIO_SYNCIO) | |
1152 | return fio_syncio_init(td); | |
1153 | else if (td->io_engine == FIO_MMAPIO) | |
1154 | return fio_mmapio_init(td); | |
1155 | else if (td->io_engine == FIO_LIBAIO) | |
1156 | return fio_libaio_init(td); | |
1157 | else if (td->io_engine == FIO_POSIXAIO) | |
1158 | return fio_posixaio_init(td); | |
1159 | else if (td->io_engine == FIO_SGIO) | |
1160 | return fio_sgio_init(td); | |
8756e4d4 JA |
1161 | else if (td->io_engine == FIO_SPLICEIO) |
1162 | return fio_spliceio_init(td); | |
ebac4655 JA |
1163 | else { |
1164 | fprintf(stderr, "bad io_engine %d\n", td->io_engine); | |
1165 | return 1; | |
1166 | } | |
1167 | } | |
1168 | ||
1169 | static void cleanup_io_u(struct thread_data *td) | |
1170 | { | |
1171 | struct list_head *entry, *n; | |
1172 | struct io_u *io_u; | |
1173 | ||
1174 | list_for_each_safe(entry, n, &td->io_u_freelist) { | |
1175 | io_u = list_entry(entry, struct io_u, list); | |
1176 | ||
1177 | list_del(&io_u->list); | |
1178 | free(io_u); | |
1179 | } | |
1180 | ||
1181 | if (td->mem_type == MEM_MALLOC) | |
1182 | free(td->orig_buffer); | |
1183 | else if (td->mem_type == MEM_SHM) { | |
1184 | struct shmid_ds sbuf; | |
1185 | ||
1186 | shmdt(td->orig_buffer); | |
1187 | shmctl(td->shm_id, IPC_RMID, &sbuf); | |
1188 | } else if (td->mem_type == MEM_MMAP) | |
1189 | munmap(td->orig_buffer, td->orig_buffer_size); | |
1190 | else | |
1191 | fprintf(stderr, "Bad memory type %d\n", td->mem_type); | |
1192 | ||
1193 | td->orig_buffer = NULL; | |
1194 | } | |
1195 | ||
1196 | static int init_io_u(struct thread_data *td) | |
1197 | { | |
1198 | struct io_u *io_u; | |
1199 | int i, max_units; | |
1200 | char *p; | |
1201 | ||
1202 | if (td->io_engine & FIO_SYNCIO) | |
1203 | max_units = 1; | |
1204 | else | |
1205 | max_units = td->iodepth; | |
1206 | ||
1207 | td->orig_buffer_size = td->max_bs * max_units + MASK; | |
1208 | ||
1209 | if (td->mem_type == MEM_MALLOC) | |
1210 | td->orig_buffer = malloc(td->orig_buffer_size); | |
1211 | else if (td->mem_type == MEM_SHM) { | |
1212 | td->shm_id = shmget(IPC_PRIVATE, td->orig_buffer_size, IPC_CREAT | 0600); | |
1213 | if (td->shm_id < 0) { | |
1214 | td_verror(td, errno); | |
1215 | perror("shmget"); | |
1216 | return 1; | |
1217 | } | |
1218 | ||
1219 | td->orig_buffer = shmat(td->shm_id, NULL, 0); | |
1220 | if (td->orig_buffer == (void *) -1) { | |
1221 | td_verror(td, errno); | |
1222 | perror("shmat"); | |
1223 | td->orig_buffer = NULL; | |
1224 | return 1; | |
1225 | } | |
1226 | } else if (td->mem_type == MEM_MMAP) { | |
1227 | td->orig_buffer = mmap(NULL, td->orig_buffer_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | OS_MAP_ANON, 0, 0); | |
1228 | if (td->orig_buffer == MAP_FAILED) { | |
1229 | td_verror(td, errno); | |
1230 | perror("mmap"); | |
1231 | td->orig_buffer = NULL; | |
1232 | return 1; | |
1233 | } | |
1234 | } | |
1235 | ||
ebac4655 JA |
1236 | p = ALIGN(td->orig_buffer); |
1237 | for (i = 0; i < max_units; i++) { | |
1238 | io_u = malloc(sizeof(*io_u)); | |
1239 | memset(io_u, 0, sizeof(*io_u)); | |
1240 | INIT_LIST_HEAD(&io_u->list); | |
1241 | ||
1242 | io_u->buf = p + td->max_bs * i; | |
b1ff3403 | 1243 | io_u->index = i; |
ebac4655 JA |
1244 | list_add(&io_u->list, &td->io_u_freelist); |
1245 | } | |
1246 | ||
1247 | return 0; | |
1248 | } | |
1249 | ||
1250 | static int create_file(struct thread_data *td, unsigned long long size, | |
1251 | int extend) | |
1252 | { | |
1253 | unsigned long long left; | |
1254 | unsigned int bs; | |
1255 | int r, oflags; | |
1256 | char *b; | |
1257 | ||
1258 | /* | |
1259 | * unless specifically asked for overwrite, let normal io extend it | |
1260 | */ | |
1261 | if (td_write(td) && !td->overwrite) | |
1262 | return 0; | |
1263 | ||
1264 | if (!size) { | |
1265 | fprintf(stderr, "Need size for create\n"); | |
1266 | td_verror(td, EINVAL); | |
1267 | return 1; | |
1268 | } | |
1269 | ||
1270 | if (!extend) { | |
1271 | oflags = O_CREAT | O_TRUNC; | |
1272 | printf("Client%d: Laying out IO file (%LuMiB)\n", td->thread_number, size >> 20); | |
1273 | } else { | |
1274 | oflags = O_APPEND; | |
1275 | printf("Client%d: Extending IO file (%Lu -> %LuMiB)\n", td->thread_number, (td->file_size - size) >> 20, td->file_size >> 20); | |
1276 | } | |
1277 | ||
1278 | td->fd = open(td->file_name, O_WRONLY | oflags, 0644); | |
1279 | if (td->fd < 0) { | |
1280 | td_verror(td, errno); | |
1281 | return 1; | |
1282 | } | |
1283 | ||
1284 | if (!extend && ftruncate(td->fd, td->file_size) == -1) { | |
1285 | td_verror(td, errno); | |
1286 | return 1; | |
1287 | } | |
1288 | ||
1289 | td->io_size = td->file_size; | |
1290 | b = malloc(td->max_bs); | |
1291 | memset(b, 0, td->max_bs); | |
1292 | ||
1293 | left = size; | |
1294 | while (left && !td->terminate) { | |
1295 | bs = td->max_bs; | |
1296 | if (bs > left) | |
1297 | bs = left; | |
1298 | ||
1299 | r = write(td->fd, b, bs); | |
1300 | ||
1301 | if (r == (int) bs) { | |
1302 | left -= bs; | |
1303 | continue; | |
1304 | } else { | |
1305 | if (r < 0) | |
1306 | td_verror(td, errno); | |
1307 | else | |
1308 | td_verror(td, EIO); | |
1309 | ||
1310 | break; | |
1311 | } | |
1312 | } | |
1313 | ||
1314 | if (td->terminate) | |
1315 | unlink(td->file_name); | |
1316 | else if (td->create_fsync) | |
1317 | fsync(td->fd); | |
1318 | ||
1319 | close(td->fd); | |
1320 | td->fd = -1; | |
1321 | free(b); | |
1322 | return 0; | |
1323 | } | |
1324 | ||
1325 | static int file_size(struct thread_data *td) | |
1326 | { | |
1327 | struct stat st; | |
1328 | ||
1329 | if (fstat(td->fd, &st) == -1) { | |
1330 | td_verror(td, errno); | |
1331 | return 1; | |
1332 | } | |
1333 | ||
838a3cd3 JA |
1334 | td->real_file_size = st.st_size; |
1335 | ||
1336 | if (!td->file_size || td->file_size > td->real_file_size) | |
1337 | td->file_size = td->real_file_size; | |
ebac4655 | 1338 | |
e8e387c1 | 1339 | td->file_size -= td->file_offset; |
ebac4655 JA |
1340 | return 0; |
1341 | } | |
1342 | ||
1343 | static int bdev_size(struct thread_data *td) | |
1344 | { | |
9104f874 | 1345 | unsigned long long bytes; |
ebac4655 JA |
1346 | int r; |
1347 | ||
1348 | r = blockdev_size(td->fd, &bytes); | |
1349 | if (r) { | |
1350 | td_verror(td, r); | |
1351 | return 1; | |
1352 | } | |
1353 | ||
838a3cd3 JA |
1354 | td->real_file_size = bytes; |
1355 | ||
ebac4655 JA |
1356 | /* |
1357 | * no extend possibilities, so limit size to device size if too large | |
1358 | */ | |
838a3cd3 JA |
1359 | if (!td->file_size || td->file_size > td->real_file_size) |
1360 | td->file_size = td->real_file_size; | |
ebac4655 | 1361 | |
e8e387c1 | 1362 | td->file_size -= td->file_offset; |
ebac4655 JA |
1363 | return 0; |
1364 | } | |
1365 | ||
1366 | static int get_file_size(struct thread_data *td) | |
1367 | { | |
0af7b542 | 1368 | int ret = 0; |
ebac4655 JA |
1369 | |
1370 | if (td->filetype == FIO_TYPE_FILE) | |
1371 | ret = file_size(td); | |
0af7b542 | 1372 | else if (td->filetype == FIO_TYPE_BD) |
ebac4655 | 1373 | ret = bdev_size(td); |
0af7b542 JA |
1374 | else |
1375 | td->real_file_size = -1; | |
ebac4655 JA |
1376 | |
1377 | if (ret) | |
1378 | return ret; | |
1379 | ||
e8e387c1 JA |
1380 | if (td->file_offset > td->real_file_size) { |
1381 | fprintf(stderr, "Client%d: offset extends end (%Lu > %Lu)\n", td->thread_number, td->file_offset, td->real_file_size); | |
ebac4655 JA |
1382 | return 1; |
1383 | } | |
1384 | ||
838a3cd3 | 1385 | td->io_size = td->file_size; |
ebac4655 JA |
1386 | if (td->io_size == 0) { |
1387 | fprintf(stderr, "Client%d: no io blocks\n", td->thread_number); | |
1388 | td_verror(td, EINVAL); | |
1389 | return 1; | |
1390 | } | |
1391 | ||
20dc95c4 JA |
1392 | if (!td->zone_size) |
1393 | td->zone_size = td->io_size; | |
1394 | ||
ebac4655 JA |
1395 | td->total_io_size = td->io_size * td->loops; |
1396 | return 0; | |
1397 | } | |
1398 | ||
1399 | static int setup_file_mmap(struct thread_data *td) | |
1400 | { | |
1401 | int flags; | |
1402 | ||
3d60d1ed JA |
1403 | if (td_rw(td)) |
1404 | flags = PROT_READ | PROT_WRITE; | |
1405 | else if (td_write(td)) { | |
ebac4655 JA |
1406 | flags = PROT_WRITE; |
1407 | ||
1408 | if (td->verify != VERIFY_NONE) | |
1409 | flags |= PROT_READ; | |
3d60d1ed JA |
1410 | } else |
1411 | flags = PROT_READ; | |
ebac4655 JA |
1412 | |
1413 | td->mmap = mmap(NULL, td->file_size, flags, MAP_SHARED, td->fd, td->file_offset); | |
1414 | if (td->mmap == MAP_FAILED) { | |
1415 | td->mmap = NULL; | |
1416 | td_verror(td, errno); | |
1417 | return 1; | |
1418 | } | |
1419 | ||
1420 | if (td->invalidate_cache) { | |
1421 | if (madvise(td->mmap, td->file_size, MADV_DONTNEED) < 0) { | |
1422 | td_verror(td, errno); | |
1423 | return 1; | |
1424 | } | |
1425 | } | |
1426 | ||
1427 | if (td->sequential) { | |
1428 | if (madvise(td->mmap, td->file_size, MADV_SEQUENTIAL) < 0) { | |
1429 | td_verror(td, errno); | |
1430 | return 1; | |
1431 | } | |
1432 | } else { | |
1433 | if (madvise(td->mmap, td->file_size, MADV_RANDOM) < 0) { | |
1434 | td_verror(td, errno); | |
1435 | return 1; | |
1436 | } | |
1437 | } | |
1438 | ||
1439 | return 0; | |
1440 | } | |
1441 | ||
1442 | static int setup_file_plain(struct thread_data *td) | |
1443 | { | |
1444 | if (td->invalidate_cache) { | |
1445 | if (fadvise(td->fd, td->file_offset, td->file_size, POSIX_FADV_DONTNEED) < 0) { | |
1446 | td_verror(td, errno); | |
1447 | return 1; | |
1448 | } | |
1449 | } | |
1450 | ||
1451 | if (td->sequential) { | |
1452 | if (fadvise(td->fd, td->file_offset, td->file_size, POSIX_FADV_SEQUENTIAL) < 0) { | |
1453 | td_verror(td, errno); | |
1454 | return 1; | |
1455 | } | |
1456 | } else { | |
1457 | if (fadvise(td->fd, td->file_offset, td->file_size, POSIX_FADV_RANDOM) < 0) { | |
1458 | td_verror(td, errno); | |
1459 | return 1; | |
1460 | } | |
1461 | } | |
1462 | ||
1463 | return 0; | |
1464 | } | |
1465 | ||
1466 | static int setup_file(struct thread_data *td) | |
1467 | { | |
1468 | struct stat st; | |
1469 | int flags = 0; | |
1470 | ||
1471 | if (stat(td->file_name, &st) == -1) { | |
1472 | if (errno != ENOENT) { | |
1473 | td_verror(td, errno); | |
1474 | return 1; | |
1475 | } | |
1476 | if (!td->create_file) { | |
1477 | td_verror(td, ENOENT); | |
1478 | return 1; | |
1479 | } | |
1480 | if (create_file(td, td->file_size, 0)) | |
1481 | return 1; | |
1482 | } else if (td->filetype == FIO_TYPE_FILE) { | |
6a0106a0 | 1483 | if (st.st_size < (off_t) td->file_size) { |
ebac4655 JA |
1484 | if (create_file(td, td->file_size - st.st_size, 1)) |
1485 | return 1; | |
1486 | } | |
1487 | } | |
1488 | ||
1489 | if (td->odirect) | |
1490 | flags |= O_DIRECT; | |
1491 | ||
3d60d1ed | 1492 | if (td_write(td) || td_rw(td)) { |
ebac4655 JA |
1493 | if (td->filetype == FIO_TYPE_FILE) { |
1494 | if (!td->overwrite) | |
1495 | flags |= O_TRUNC; | |
1496 | ||
1497 | flags |= O_CREAT; | |
1498 | } | |
1499 | if (td->sync_io) | |
1500 | flags |= O_SYNC; | |
1501 | ||
1502 | flags |= O_RDWR; | |
1503 | ||
1504 | td->fd = open(td->file_name, flags, 0600); | |
3d60d1ed JA |
1505 | } else { |
1506 | if (td->filetype == FIO_TYPE_CHAR) | |
1507 | flags |= O_RDWR; | |
1508 | else | |
1509 | flags |= O_RDONLY; | |
1510 | ||
1511 | td->fd = open(td->file_name, flags); | |
ebac4655 JA |
1512 | } |
1513 | ||
1514 | if (td->fd == -1) { | |
1515 | td_verror(td, errno); | |
1516 | return 1; | |
1517 | } | |
1518 | ||
1519 | if (get_file_size(td)) | |
1520 | return 1; | |
1521 | ||
1522 | if (td->io_engine != FIO_MMAPIO) | |
1523 | return setup_file_plain(td); | |
1524 | else | |
1525 | return setup_file_mmap(td); | |
1526 | } | |
1527 | ||
1528 | static int check_dev_match(dev_t dev, char *path) | |
1529 | { | |
1530 | unsigned int major, minor; | |
1531 | char line[256], *p; | |
1532 | FILE *f; | |
1533 | ||
1534 | f = fopen(path, "r"); | |
1535 | if (!f) { | |
1536 | perror("open path"); | |
1537 | return 1; | |
1538 | } | |
1539 | ||
1540 | p = fgets(line, sizeof(line), f); | |
1541 | if (!p) { | |
1542 | fclose(f); | |
1543 | return 1; | |
1544 | } | |
1545 | ||
1546 | if (sscanf(p, "%u:%u", &major, &minor) != 2) { | |
1547 | fclose(f); | |
1548 | return 1; | |
1549 | } | |
1550 | ||
1551 | if (((major << 8) | minor) == dev) { | |
1552 | fclose(f); | |
1553 | return 0; | |
1554 | } | |
1555 | ||
1556 | fclose(f); | |
1557 | return 1; | |
1558 | } | |
1559 | ||
1560 | static int find_block_dir(dev_t dev, char *path) | |
1561 | { | |
1562 | struct dirent *dir; | |
1563 | struct stat st; | |
1564 | int found = 0; | |
1565 | DIR *D; | |
1566 | ||
1567 | D = opendir(path); | |
1568 | if (!D) | |
1569 | return 0; | |
1570 | ||
1571 | while ((dir = readdir(D)) != NULL) { | |
1572 | char full_path[256]; | |
1573 | ||
1574 | if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) | |
1575 | continue; | |
1576 | if (!strcmp(dir->d_name, "device")) | |
1577 | continue; | |
1578 | ||
1579 | sprintf(full_path, "%s/%s", path, dir->d_name); | |
1580 | ||
1581 | if (!strcmp(dir->d_name, "dev")) { | |
1582 | if (!check_dev_match(dev, full_path)) { | |
1583 | found = 1; | |
1584 | break; | |
1585 | } | |
1586 | } | |
1587 | ||
1588 | if (stat(full_path, &st) == -1) { | |
1589 | perror("stat"); | |
1590 | break; | |
1591 | } | |
1592 | ||
1593 | if (!S_ISDIR(st.st_mode) || S_ISLNK(st.st_mode)) | |
1594 | continue; | |
1595 | ||
1596 | found = find_block_dir(dev, full_path); | |
1597 | if (found) { | |
1598 | strcpy(path, full_path); | |
1599 | break; | |
1600 | } | |
1601 | } | |
1602 | ||
1603 | closedir(D); | |
1604 | return found; | |
1605 | } | |
1606 | ||
1607 | static int get_io_ticks(struct disk_util *du, struct disk_util_stat *dus) | |
1608 | { | |
1609 | unsigned in_flight; | |
1610 | char line[256]; | |
1611 | FILE *f; | |
1612 | char *p; | |
1613 | ||
1614 | f = fopen(du->path, "r"); | |
1615 | if (!f) | |
1616 | return 1; | |
1617 | ||
1618 | p = fgets(line, sizeof(line), f); | |
1619 | if (!p) { | |
1620 | fclose(f); | |
1621 | return 1; | |
1622 | } | |
1623 | ||
1624 | 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) { | |
1625 | fclose(f); | |
1626 | return 1; | |
1627 | } | |
1628 | ||
1629 | fclose(f); | |
1630 | return 0; | |
1631 | } | |
1632 | ||
1633 | static void update_io_tick_disk(struct disk_util *du) | |
1634 | { | |
1635 | struct disk_util_stat __dus, *dus, *ldus; | |
1636 | struct timeval t; | |
1637 | ||
1638 | if (get_io_ticks(du, &__dus)) | |
1639 | return; | |
1640 | ||
1641 | dus = &du->dus; | |
1642 | ldus = &du->last_dus; | |
1643 | ||
1644 | dus->sectors[0] += (__dus.sectors[0] - ldus->sectors[0]); | |
1645 | dus->sectors[1] += (__dus.sectors[1] - ldus->sectors[1]); | |
1646 | dus->ios[0] += (__dus.ios[0] - ldus->ios[0]); | |
1647 | dus->ios[1] += (__dus.ios[1] - ldus->ios[1]); | |
1648 | dus->merges[0] += (__dus.merges[0] - ldus->merges[0]); | |
1649 | dus->merges[1] += (__dus.merges[1] - ldus->merges[1]); | |
1650 | dus->ticks[0] += (__dus.ticks[0] - ldus->ticks[0]); | |
1651 | dus->ticks[1] += (__dus.ticks[1] - ldus->ticks[1]); | |
1652 | dus->io_ticks += (__dus.io_ticks - ldus->io_ticks); | |
1653 | dus->time_in_queue += (__dus.time_in_queue - ldus->time_in_queue); | |
1654 | ||
1655 | gettimeofday(&t, NULL); | |
1656 | du->msec += mtime_since(&du->time, &t); | |
1657 | memcpy(&du->time, &t, sizeof(t)); | |
1658 | memcpy(ldus, &__dus, sizeof(__dus)); | |
1659 | } | |
1660 | ||
1661 | static void update_io_ticks(void) | |
1662 | { | |
1663 | struct list_head *entry; | |
1664 | struct disk_util *du; | |
1665 | ||
1666 | list_for_each(entry, &disk_list) { | |
1667 | du = list_entry(entry, struct disk_util, list); | |
1668 | update_io_tick_disk(du); | |
1669 | } | |
1670 | } | |
1671 | ||
1672 | static int disk_util_exists(dev_t dev) | |
1673 | { | |
1674 | struct list_head *entry; | |
1675 | struct disk_util *du; | |
1676 | ||
1677 | list_for_each(entry, &disk_list) { | |
1678 | du = list_entry(entry, struct disk_util, list); | |
1679 | ||
1680 | if (du->dev == dev) | |
1681 | return 1; | |
1682 | } | |
1683 | ||
1684 | return 0; | |
1685 | } | |
1686 | ||
1687 | static void disk_util_add(dev_t dev, char *path) | |
1688 | { | |
1689 | struct disk_util *du = malloc(sizeof(*du)); | |
1690 | ||
1691 | memset(du, 0, sizeof(*du)); | |
1692 | INIT_LIST_HEAD(&du->list); | |
1693 | sprintf(du->path, "%s/stat", path); | |
1694 | du->name = strdup(basename(path)); | |
1695 | du->dev = dev; | |
1696 | ||
1697 | gettimeofday(&du->time, NULL); | |
1698 | get_io_ticks(du, &du->last_dus); | |
1699 | ||
1700 | list_add_tail(&du->list, &disk_list); | |
1701 | } | |
1702 | ||
1703 | static void init_disk_util(struct thread_data *td) | |
1704 | { | |
1705 | struct stat st; | |
1706 | char foo[256], tmp[256]; | |
1707 | dev_t dev; | |
1708 | char *p; | |
1709 | ||
1710 | if (!td->do_disk_util) | |
1711 | return; | |
1712 | ||
1713 | if (!stat(td->file_name, &st)) { | |
1714 | if (S_ISBLK(st.st_mode)) | |
1715 | dev = st.st_rdev; | |
1716 | else | |
1717 | dev = st.st_dev; | |
1718 | } else { | |
1719 | /* | |
1720 | * must be a file, open "." in that path | |
1721 | */ | |
1722 | strcpy(foo, td->file_name); | |
1723 | p = dirname(foo); | |
1724 | if (stat(p, &st)) { | |
1725 | perror("disk util stat"); | |
1726 | return; | |
1727 | } | |
1728 | ||
1729 | dev = st.st_dev; | |
1730 | } | |
1731 | ||
1732 | if (disk_util_exists(dev)) | |
1733 | return; | |
1734 | ||
1735 | sprintf(foo, "/sys/block"); | |
1736 | if (!find_block_dir(dev, foo)) | |
1737 | return; | |
1738 | ||
1739 | /* | |
64cb3e10 | 1740 | * for md/dm, there's no queue dir. we already have the right place |
ebac4655 | 1741 | */ |
64cb3e10 | 1742 | sprintf(tmp, "%s/stat", foo); |
ebac4655 | 1743 | if (stat(tmp, &st)) { |
64cb3e10 JA |
1744 | /* |
1745 | * if this is inside a partition dir, jump back to parent | |
1746 | */ | |
1747 | sprintf(tmp, "%s/queue", foo); | |
ebac4655 | 1748 | if (stat(tmp, &st)) { |
64cb3e10 JA |
1749 | p = dirname(foo); |
1750 | sprintf(tmp, "%s/queue", p); | |
1751 | if (stat(tmp, &st)) { | |
1752 | fprintf(stderr, "unknown sysfs layout\n"); | |
1753 | return; | |
1754 | } | |
1755 | sprintf(foo, "%s", p); | |
ebac4655 | 1756 | } |
ebac4655 JA |
1757 | } |
1758 | ||
1759 | disk_util_add(dev, foo); | |
1760 | } | |
1761 | ||
1762 | static void disk_util_timer_arm(void) | |
1763 | { | |
1764 | itimer.it_value.tv_sec = 0; | |
1765 | itimer.it_value.tv_usec = DISK_UTIL_MSEC * 1000; | |
1766 | setitimer(ITIMER_REAL, &itimer, NULL); | |
1767 | } | |
1768 | ||
1769 | static void clear_io_state(struct thread_data *td) | |
1770 | { | |
1771 | if (td->io_engine == FIO_SYNCIO) | |
1772 | lseek(td->fd, SEEK_SET, 0); | |
1773 | ||
20dc95c4 | 1774 | td->last_pos = 0; |
ebac4655 JA |
1775 | td->stat_io_bytes[0] = td->stat_io_bytes[1] = 0; |
1776 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; | |
20dc95c4 | 1777 | td->zone_bytes = 0; |
ebac4655 JA |
1778 | |
1779 | if (td->file_map) | |
1780 | memset(td->file_map, 0, td->num_maps * sizeof(long)); | |
1781 | } | |
1782 | ||
1783 | static void update_rusage_stat(struct thread_data *td) | |
1784 | { | |
1785 | if (!(td->runtime[0] + td->runtime[1])) | |
1786 | return; | |
1787 | ||
1788 | getrusage(RUSAGE_SELF, &td->ru_end); | |
1789 | ||
1790 | td->usr_time += mtime_since(&td->ru_start.ru_utime, &td->ru_end.ru_utime); | |
1791 | td->sys_time += mtime_since(&td->ru_start.ru_stime, &td->ru_end.ru_stime); | |
1792 | td->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw); | |
1793 | ||
1794 | ||
1795 | memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end)); | |
1796 | } | |
1797 | ||
1798 | static void *thread_main(void *data) | |
1799 | { | |
1800 | struct thread_data *td = data; | |
1801 | int ret = 1; | |
1802 | ||
1803 | if (!td->use_thread) | |
1804 | setsid(); | |
1805 | ||
1806 | td->pid = getpid(); | |
1807 | ||
aea47d44 JA |
1808 | INIT_LIST_HEAD(&td->io_u_freelist); |
1809 | INIT_LIST_HEAD(&td->io_u_busylist); | |
1810 | INIT_LIST_HEAD(&td->io_hist_list); | |
1811 | INIT_LIST_HEAD(&td->io_log_list); | |
1812 | ||
ebac4655 JA |
1813 | if (init_io_u(td)) |
1814 | goto err; | |
1815 | ||
1816 | if (fio_setaffinity(td) == -1) { | |
1817 | td_verror(td, errno); | |
1818 | goto err; | |
1819 | } | |
1820 | ||
1821 | if (init_io(td)) | |
1822 | goto err; | |
1823 | ||
aea47d44 JA |
1824 | if (init_iolog(td)) |
1825 | goto err; | |
1826 | ||
ebac4655 JA |
1827 | if (td->ioprio) { |
1828 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { | |
1829 | td_verror(td, errno); | |
1830 | goto err; | |
1831 | } | |
1832 | } | |
1833 | ||
1834 | sem_post(&startup_sem); | |
1835 | sem_wait(&td->mutex); | |
1836 | ||
1837 | if (!td->create_serialize && setup_file(td)) | |
1838 | goto err; | |
1839 | ||
1840 | if (init_random_state(td)) | |
1841 | goto err; | |
1842 | ||
1843 | gettimeofday(&td->epoch, NULL); | |
1844 | ||
1845 | while (td->loops--) { | |
1846 | getrusage(RUSAGE_SELF, &td->ru_start); | |
1847 | gettimeofday(&td->start, NULL); | |
1848 | memcpy(&td->stat_sample_time, &td->start, sizeof(td->start)); | |
1849 | ||
1850 | if (td->ratemin) | |
1851 | memcpy(&td->lastrate, &td->stat_sample_time, sizeof(td->lastrate)); | |
1852 | ||
1853 | clear_io_state(td); | |
1854 | prune_io_piece_log(td); | |
1855 | ||
1856 | do_io(td); | |
1857 | ||
1858 | td->runtime[td->ddir] += mtime_since_now(&td->start); | |
aea47d44 | 1859 | if (td_rw(td) && td->io_bytes[td->ddir ^ 1]) |
3d60d1ed JA |
1860 | td->runtime[td->ddir ^ 1] = td->runtime[td->ddir]; |
1861 | ||
ebac4655 JA |
1862 | update_rusage_stat(td); |
1863 | ||
1864 | if (td->error || td->terminate) | |
1865 | break; | |
1866 | ||
1867 | if (td->verify == VERIFY_NONE) | |
1868 | continue; | |
1869 | ||
1870 | clear_io_state(td); | |
1871 | gettimeofday(&td->start, NULL); | |
1872 | ||
1873 | do_verify(td); | |
1874 | ||
1875 | td->runtime[DDIR_READ] += mtime_since_now(&td->start); | |
1876 | ||
1877 | if (td->error || td->terminate) | |
1878 | break; | |
1879 | } | |
1880 | ||
1881 | ret = 0; | |
1882 | ||
1883 | if (td->bw_log) | |
1884 | finish_log(td, td->bw_log, "bw"); | |
1885 | if (td->slat_log) | |
1886 | finish_log(td, td->slat_log, "slat"); | |
1887 | if (td->clat_log) | |
1888 | finish_log(td, td->clat_log, "clat"); | |
1889 | ||
1890 | if (exitall_on_terminate) | |
1891 | terminate_threads(td->groupid); | |
1892 | ||
1893 | err: | |
1894 | if (td->fd != -1) { | |
1895 | close(td->fd); | |
1896 | td->fd = -1; | |
1897 | } | |
1898 | if (td->mmap) | |
1899 | munmap(td->mmap, td->file_size); | |
1900 | cleanup_io(td); | |
1901 | cleanup_io_u(td); | |
1902 | if (ret) { | |
1903 | sem_post(&startup_sem); | |
1904 | sem_wait(&td->mutex); | |
1905 | } | |
1906 | td_set_runstate(td, TD_EXITED); | |
1907 | return NULL; | |
1908 | ||
1909 | } | |
1910 | ||
1911 | static void *fork_main(int shmid, int offset) | |
1912 | { | |
1913 | struct thread_data *td; | |
1914 | void *data; | |
1915 | ||
1916 | data = shmat(shmid, NULL, 0); | |
1917 | if (data == (void *) -1) { | |
1918 | perror("shmat"); | |
1919 | return NULL; | |
1920 | } | |
1921 | ||
1922 | td = data + offset * sizeof(struct thread_data); | |
1923 | thread_main(td); | |
1924 | shmdt(data); | |
1925 | return NULL; | |
1926 | } | |
1927 | ||
1928 | static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max, | |
1929 | double *mean, double *dev) | |
1930 | { | |
1931 | double n; | |
1932 | ||
1933 | if (is->samples == 0) | |
1934 | return 0; | |
1935 | ||
1936 | *min = is->min_val; | |
1937 | *max = is->max_val; | |
1938 | ||
1939 | n = (double) is->samples; | |
1940 | *mean = (double) is->val / n; | |
1941 | *dev = sqrt(((double) is->val_sq - (*mean * *mean) / n) / (n - 1)); | |
1942 | if (!(*min + *max) && !(*mean + *dev)) | |
1943 | return 0; | |
1944 | ||
1945 | return 1; | |
1946 | } | |
1947 | ||
1948 | static void show_ddir_status(struct thread_data *td, struct group_run_stats *rs, | |
1949 | int ddir) | |
1950 | { | |
1951 | char *ddir_str[] = { "read ", "write" }; | |
1952 | unsigned long min, max, bw; | |
1953 | double mean, dev; | |
1954 | ||
1955 | if (!td->runtime[ddir]) | |
1956 | return; | |
1957 | ||
1958 | bw = td->io_bytes[ddir] / td->runtime[ddir]; | |
9104f874 | 1959 | printf(" %s: io=%6lluMiB, bw=%6luKiB/s, runt=%6lumsec\n", ddir_str[ddir], td->io_bytes[ddir] >> 20, bw, td->runtime[ddir]); |
ebac4655 JA |
1960 | |
1961 | if (calc_lat(&td->slat_stat[ddir], &min, &max, &mean, &dev)) | |
1962 | printf(" slat (msec): min=%5lu, max=%5lu, avg=%5.02f, dev=%5.02f\n", min, max, mean, dev); | |
1963 | ||
1964 | if (calc_lat(&td->clat_stat[ddir], &min, &max, &mean, &dev)) | |
1965 | printf(" clat (msec): min=%5lu, max=%5lu, avg=%5.02f, dev=%5.02f\n", min, max, mean, dev); | |
1966 | ||
1967 | if (calc_lat(&td->bw_stat[ddir], &min, &max, &mean, &dev)) { | |
1968 | double p_of_agg; | |
1969 | ||
1970 | p_of_agg = mean * 100 / (double) rs->agg[ddir]; | |
1971 | 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); | |
1972 | } | |
1973 | } | |
1974 | ||
1975 | static void show_thread_status(struct thread_data *td, | |
1976 | struct group_run_stats *rs) | |
1977 | { | |
1978 | double usr_cpu, sys_cpu; | |
1979 | ||
1980 | if (!(td->io_bytes[0] + td->io_bytes[1]) && !td->error) | |
1981 | return; | |
1982 | ||
1983 | printf("Client%d (groupid=%d): err=%2d:\n", td->thread_number, td->groupid, td->error); | |
1984 | ||
1985 | show_ddir_status(td, rs, td->ddir); | |
aea47d44 JA |
1986 | if (td->io_bytes[td->ddir ^ 1]) |
1987 | show_ddir_status(td, rs, td->ddir ^ 1); | |
ebac4655 JA |
1988 | |
1989 | if (td->runtime[0] + td->runtime[1]) { | |
1990 | double runt = td->runtime[0] + td->runtime[1]; | |
1991 | ||
1992 | usr_cpu = (double) td->usr_time * 100 / runt; | |
1993 | sys_cpu = (double) td->sys_time * 100 / runt; | |
1994 | } else { | |
1995 | usr_cpu = 0; | |
1996 | sys_cpu = 0; | |
1997 | } | |
1998 | ||
1999 | printf(" cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu\n", usr_cpu, sys_cpu, td->ctx); | |
2000 | } | |
2001 | ||
2002 | static void check_str_update(struct thread_data *td) | |
2003 | { | |
2004 | char c = run_str[td->thread_number - 1]; | |
2005 | ||
2006 | if (td->runstate == td->old_runstate) | |
2007 | return; | |
2008 | ||
2009 | switch (td->runstate) { | |
2010 | case TD_REAPED: | |
2011 | c = '_'; | |
2012 | break; | |
2013 | case TD_EXITED: | |
2014 | c = 'E'; | |
2015 | break; | |
2016 | case TD_RUNNING: | |
3d60d1ed JA |
2017 | if (td_rw(td)) { |
2018 | if (td->sequential) | |
2019 | c = 'M'; | |
2020 | else | |
2021 | c = 'm'; | |
2022 | } else if (td_read(td)) { | |
ebac4655 JA |
2023 | if (td->sequential) |
2024 | c = 'R'; | |
2025 | else | |
2026 | c = 'r'; | |
2027 | } else { | |
2028 | if (td->sequential) | |
2029 | c = 'W'; | |
2030 | else | |
2031 | c = 'w'; | |
2032 | } | |
2033 | break; | |
2034 | case TD_VERIFYING: | |
2035 | c = 'V'; | |
2036 | break; | |
2037 | case TD_CREATED: | |
2038 | c = 'C'; | |
2039 | break; | |
2040 | case TD_NOT_CREATED: | |
2041 | c = 'P'; | |
2042 | break; | |
2043 | default: | |
2044 | printf("state %d\n", td->runstate); | |
2045 | } | |
2046 | ||
2047 | run_str[td->thread_number - 1] = c; | |
2048 | td->old_runstate = td->runstate; | |
2049 | } | |
2050 | ||
5289b847 JA |
2051 | static void eta_to_str(char *str, int eta_sec) |
2052 | { | |
2053 | unsigned int d, h, m, s; | |
2054 | static int always_d, always_h; | |
2055 | ||
2056 | d = h = m = s = 0; | |
2057 | ||
2058 | s = eta_sec % 60; | |
2059 | eta_sec /= 60; | |
2060 | m = eta_sec % 60; | |
2061 | eta_sec /= 60; | |
2062 | h = eta_sec % 24; | |
2063 | eta_sec /= 24; | |
2064 | d = eta_sec; | |
2065 | ||
2066 | if (d || always_d) { | |
2067 | always_d = 1; | |
2068 | str += sprintf(str, "%02dd:", d); | |
2069 | } | |
2070 | if (h || always_h) { | |
2071 | always_h = 1; | |
2072 | str += sprintf(str, "%02dh:", h); | |
2073 | } | |
2074 | ||
2075 | str += sprintf(str, "%02dm:", m); | |
2076 | str += sprintf(str, "%02ds", s); | |
2077 | } | |
2078 | ||
6a0106a0 JA |
2079 | static int thread_eta(struct thread_data *td, unsigned long elapsed) |
2080 | { | |
2081 | unsigned long long bytes_total, bytes_done; | |
2082 | unsigned int eta_sec = 0; | |
2083 | ||
2084 | bytes_total = td->total_io_size; | |
3d60d1ed JA |
2085 | |
2086 | /* | |
2087 | * if writing, bytes_total will be twice the size. If mixing, | |
2088 | * assume a 50/50 split and thus bytes_total will be 50% larger. | |
2089 | */ | |
2090 | if (td->verify) { | |
2091 | if (td_rw(td)) | |
2092 | bytes_total = bytes_total * 3 / 2; | |
2093 | else | |
2094 | bytes_total <<= 1; | |
2095 | } | |
6a0106a0 JA |
2096 | if (td->zone_size && td->zone_skip) |
2097 | bytes_total /= (td->zone_skip / td->zone_size); | |
2098 | ||
2099 | if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING) { | |
2100 | double perc; | |
8b611c34 | 2101 | |
6a0106a0 JA |
2102 | bytes_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE]; |
2103 | perc = (double) bytes_done / (double) bytes_total; | |
2104 | if (perc > 1.0) | |
2105 | perc = 1.0; | |
2106 | ||
2107 | eta_sec = (elapsed * (1.0 / perc)) - elapsed; | |
2108 | ||
8b611c34 | 2109 | if (td->timeout && eta_sec > (td->timeout - elapsed)) |
6a0106a0 JA |
2110 | eta_sec = td->timeout - elapsed; |
2111 | } else if (td->runstate == TD_NOT_CREATED || td->runstate == TD_CREATED) { | |
2112 | int t_eta = 0, r_eta = 0; | |
2113 | ||
2114 | /* | |
2115 | * We can only guess - assume it'll run the full timeout | |
2116 | * if given, otherwise assume it'll run at the specified rate. | |
2117 | */ | |
2118 | if (td->timeout) | |
2119 | t_eta = td->timeout + td->start_delay - elapsed; | |
2120 | if (td->rate) { | |
2121 | r_eta = (bytes_total / 1024) / td->rate; | |
2122 | r_eta += td->start_delay - elapsed; | |
2123 | } | |
2124 | ||
2125 | if (r_eta && t_eta) | |
2126 | eta_sec = min(r_eta, t_eta); | |
2127 | else if (r_eta) | |
2128 | eta_sec = r_eta; | |
2129 | else if (t_eta) | |
2130 | eta_sec = t_eta; | |
2131 | else | |
2132 | eta_sec = INT_MAX; | |
2133 | } else { | |
2134 | /* | |
2135 | * thread is already done | |
2136 | */ | |
2137 | eta_sec = 0; | |
2138 | } | |
2139 | ||
2140 | return eta_sec; | |
2141 | } | |
2142 | ||
ebac4655 JA |
2143 | static void print_thread_status(void) |
2144 | { | |
6a0106a0 JA |
2145 | unsigned long elapsed = time_since_now(&genesis); |
2146 | int i, nr_running, t_rate, m_rate, *eta_secs, eta_sec; | |
5289b847 | 2147 | char eta_str[32]; |
6a0106a0 JA |
2148 | double perc = 0.0; |
2149 | ||
2150 | eta_secs = malloc(thread_number * sizeof(int)); | |
2151 | memset(eta_secs, 0, thread_number * sizeof(int)); | |
ebac4655 | 2152 | |
ebac4655 JA |
2153 | nr_running = t_rate = m_rate = 0; |
2154 | for (i = 0; i < thread_number; i++) { | |
2155 | struct thread_data *td = &threads[i]; | |
2156 | ||
2157 | if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING){ | |
2158 | nr_running++; | |
2159 | t_rate += td->rate; | |
2160 | m_rate += td->ratemin; | |
2161 | } | |
2162 | ||
6a0106a0 JA |
2163 | if (elapsed >= 3) |
2164 | eta_secs[i] = thread_eta(td, elapsed); | |
8b611c34 JA |
2165 | else |
2166 | eta_secs[i] = INT_MAX; | |
ebac4655 JA |
2167 | |
2168 | check_str_update(td); | |
2169 | } | |
2170 | ||
6a0106a0 JA |
2171 | if (exitall_on_terminate) |
2172 | eta_sec = INT_MAX; | |
2173 | else | |
2174 | eta_sec = 0; | |
5289b847 | 2175 | |
6a0106a0 JA |
2176 | for (i = 0; i < thread_number; i++) { |
2177 | if (exitall_on_terminate) { | |
2178 | if (eta_secs[i] < eta_sec) | |
2179 | eta_sec = eta_secs[i]; | |
2180 | } else { | |
2181 | if (eta_secs[i] > eta_sec) | |
2182 | eta_sec = eta_secs[i]; | |
5289b847 | 2183 | } |
6a0106a0 | 2184 | } |
5289b847 | 2185 | |
8b611c34 | 2186 | if (eta_sec != INT_MAX && elapsed) { |
6a0106a0 JA |
2187 | perc = (double) elapsed / (double) (elapsed + eta_sec); |
2188 | eta_to_str(eta_str, eta_sec); | |
ebac4655 JA |
2189 | } |
2190 | ||
5289b847 | 2191 | printf("Threads now running (%d)", nr_running); |
ebac4655 JA |
2192 | if (m_rate || t_rate) |
2193 | printf(", commitrate %d/%dKiB/sec", t_rate, m_rate); | |
8b611c34 | 2194 | if (eta_sec != INT_MAX) { |
6a0106a0 JA |
2195 | perc *= 100.0; |
2196 | printf(": [%s] [%3.2f%% done] [eta %s]", run_str, perc,eta_str); | |
2197 | } | |
5289b847 | 2198 | printf("\r"); |
ebac4655 | 2199 | fflush(stdout); |
6a0106a0 | 2200 | free(eta_secs); |
ebac4655 JA |
2201 | } |
2202 | ||
2203 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) | |
2204 | { | |
2205 | int i; | |
2206 | ||
2207 | /* | |
2208 | * reap exited threads (TD_EXITED -> TD_REAPED) | |
2209 | */ | |
2210 | for (i = 0; i < thread_number; i++) { | |
2211 | struct thread_data *td = &threads[i]; | |
2212 | ||
2213 | if (td->runstate != TD_EXITED) | |
2214 | continue; | |
2215 | ||
2216 | td_set_runstate(td, TD_REAPED); | |
2217 | ||
2218 | if (td->use_thread) { | |
2219 | long ret; | |
2220 | ||
2221 | if (pthread_join(td->thread, (void *) &ret)) | |
2222 | perror("thread_join"); | |
2223 | } else | |
2224 | waitpid(td->pid, NULL, 0); | |
2225 | ||
2226 | (*nr_running)--; | |
2227 | (*m_rate) -= td->ratemin; | |
2228 | (*t_rate) -= td->rate; | |
2229 | } | |
2230 | } | |
2231 | ||
2232 | static void run_threads(void) | |
2233 | { | |
ebac4655 JA |
2234 | struct thread_data *td; |
2235 | unsigned long spent; | |
2236 | int i, todo, nr_running, m_rate, t_rate, nr_started; | |
2237 | ||
2238 | printf("Starting %d thread%s\n", thread_number, thread_number > 1 ? "s" : ""); | |
2239 | fflush(stdout); | |
2240 | ||
2241 | signal(SIGINT, sig_handler); | |
2242 | signal(SIGALRM, sig_handler); | |
2243 | ||
2244 | todo = thread_number; | |
2245 | nr_running = 0; | |
2246 | nr_started = 0; | |
2247 | m_rate = t_rate = 0; | |
2248 | ||
2249 | for (i = 0; i < thread_number; i++) { | |
2250 | td = &threads[i]; | |
2251 | ||
2252 | run_str[td->thread_number - 1] = 'P'; | |
2253 | ||
2254 | init_disk_util(td); | |
2255 | ||
2256 | if (!td->create_serialize) | |
2257 | continue; | |
2258 | ||
2259 | /* | |
2260 | * do file setup here so it happens sequentially, | |
2261 | * we don't want X number of threads getting their | |
2262 | * client data interspersed on disk | |
2263 | */ | |
2264 | if (setup_file(td)) { | |
2265 | td_set_runstate(td, TD_REAPED); | |
2266 | todo--; | |
2267 | } | |
2268 | } | |
2269 | ||
2270 | gettimeofday(&genesis, NULL); | |
2271 | ||
2272 | while (todo) { | |
2273 | /* | |
2274 | * create threads (TD_NOT_CREATED -> TD_CREATED) | |
2275 | */ | |
2276 | for (i = 0; i < thread_number; i++) { | |
2277 | td = &threads[i]; | |
2278 | ||
2279 | if (td->runstate != TD_NOT_CREATED) | |
2280 | continue; | |
2281 | ||
2282 | /* | |
2283 | * never got a chance to start, killed by other | |
2284 | * thread for some reason | |
2285 | */ | |
2286 | if (td->terminate) { | |
2287 | todo--; | |
2288 | continue; | |
2289 | } | |
2290 | ||
2291 | if (td->start_delay) { | |
2292 | spent = mtime_since_now(&genesis); | |
2293 | ||
2294 | if (td->start_delay * 1000 > spent) | |
2295 | continue; | |
2296 | } | |
2297 | ||
2298 | if (td->stonewall && (nr_started || nr_running)) | |
2299 | break; | |
2300 | ||
2301 | td_set_runstate(td, TD_CREATED); | |
2302 | sem_init(&startup_sem, 0, 1); | |
2303 | todo--; | |
2304 | nr_started++; | |
2305 | ||
2306 | if (td->use_thread) { | |
2307 | if (pthread_create(&td->thread, NULL, thread_main, td)) { | |
2308 | perror("thread_create"); | |
2309 | nr_started--; | |
2310 | } | |
2311 | } else { | |
2312 | if (fork()) | |
2313 | sem_wait(&startup_sem); | |
2314 | else { | |
2315 | fork_main(shm_id, i); | |
2316 | exit(0); | |
2317 | } | |
2318 | } | |
2319 | } | |
2320 | ||
2321 | /* | |
2322 | * start created threads (TD_CREATED -> TD_RUNNING) | |
2323 | */ | |
2324 | for (i = 0; i < thread_number; i++) { | |
2325 | td = &threads[i]; | |
2326 | ||
2327 | if (td->runstate != TD_CREATED) | |
2328 | continue; | |
2329 | ||
2330 | td_set_runstate(td, TD_RUNNING); | |
2331 | nr_running++; | |
2332 | nr_started--; | |
2333 | m_rate += td->ratemin; | |
2334 | t_rate += td->rate; | |
2335 | sem_post(&td->mutex); | |
2336 | } | |
2337 | ||
2338 | reap_threads(&nr_running, &t_rate, &m_rate); | |
2339 | ||
2340 | if (todo) | |
2341 | usleep(100000); | |
2342 | } | |
2343 | ||
2344 | while (nr_running) { | |
2345 | reap_threads(&nr_running, &t_rate, &m_rate); | |
2346 | usleep(10000); | |
2347 | } | |
2348 | ||
2349 | update_io_ticks(); | |
2350 | } | |
2351 | ||
2352 | static void show_group_stats(struct group_run_stats *rs, int id) | |
2353 | { | |
2354 | printf("\nRun status group %d (all jobs):\n", id); | |
2355 | ||
2356 | if (rs->max_run[DDIR_READ]) | |
9104f874 | 2357 | 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 | 2358 | if (rs->max_run[DDIR_WRITE]) |
9104f874 | 2359 | 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 |
2360 | } |
2361 | ||
2362 | static void show_disk_util(void) | |
2363 | { | |
2364 | struct disk_util_stat *dus; | |
2365 | struct list_head *entry; | |
2366 | struct disk_util *du; | |
2367 | double util; | |
2368 | ||
2369 | printf("\nDisk stats (read/write):\n"); | |
2370 | ||
2371 | list_for_each(entry, &disk_list) { | |
2372 | du = list_entry(entry, struct disk_util, list); | |
2373 | dus = &du->dus; | |
2374 | ||
2375 | util = (double) 100 * du->dus.io_ticks / (double) du->msec; | |
2376 | if (util > 100.0) | |
2377 | util = 100.0; | |
2378 | ||
2379 | 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); | |
2380 | } | |
2381 | } | |
2382 | ||
2383 | static void show_run_stats(void) | |
2384 | { | |
2385 | struct group_run_stats *runstats, *rs; | |
2386 | struct thread_data *td; | |
2387 | int i; | |
2388 | ||
2389 | runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1)); | |
2390 | ||
2391 | for (i = 0; i < groupid + 1; i++) { | |
2392 | rs = &runstats[i]; | |
2393 | ||
2394 | memset(rs, 0, sizeof(*rs)); | |
2395 | rs->min_bw[0] = rs->min_run[0] = ~0UL; | |
2396 | rs->min_bw[1] = rs->min_run[1] = ~0UL; | |
2397 | } | |
2398 | ||
2399 | for (i = 0; i < thread_number; i++) { | |
2400 | unsigned long rbw, wbw; | |
2401 | ||
2402 | td = &threads[i]; | |
2403 | ||
2404 | if (td->error) { | |
2405 | printf("Client%d: %s\n", td->thread_number, td->verror); | |
2406 | continue; | |
2407 | } | |
2408 | ||
2409 | rs = &runstats[td->groupid]; | |
2410 | ||
2411 | if (td->runtime[0] < rs->min_run[0] || !rs->min_run[0]) | |
2412 | rs->min_run[0] = td->runtime[0]; | |
2413 | if (td->runtime[0] > rs->max_run[0]) | |
2414 | rs->max_run[0] = td->runtime[0]; | |
2415 | if (td->runtime[1] < rs->min_run[1] || !rs->min_run[1]) | |
2416 | rs->min_run[1] = td->runtime[1]; | |
2417 | if (td->runtime[1] > rs->max_run[1]) | |
2418 | rs->max_run[1] = td->runtime[1]; | |
2419 | ||
2420 | rbw = wbw = 0; | |
2421 | if (td->runtime[0]) | |
2422 | rbw = td->io_bytes[0] / td->runtime[0]; | |
2423 | if (td->runtime[1]) | |
2424 | wbw = td->io_bytes[1] / td->runtime[1]; | |
2425 | ||
2426 | if (rbw < rs->min_bw[0]) | |
2427 | rs->min_bw[0] = rbw; | |
2428 | if (wbw < rs->min_bw[1]) | |
2429 | rs->min_bw[1] = wbw; | |
2430 | if (rbw > rs->max_bw[0]) | |
2431 | rs->max_bw[0] = rbw; | |
2432 | if (wbw > rs->max_bw[1]) | |
2433 | rs->max_bw[1] = wbw; | |
2434 | ||
2435 | rs->io_mb[0] += td->io_bytes[0] >> 20; | |
2436 | rs->io_mb[1] += td->io_bytes[1] >> 20; | |
2437 | } | |
2438 | ||
2439 | for (i = 0; i < groupid + 1; i++) { | |
2440 | rs = &runstats[i]; | |
2441 | ||
2442 | if (rs->max_run[0]) | |
2443 | rs->agg[0] = (rs->io_mb[0]*1024*1000) / rs->max_run[0]; | |
2444 | if (rs->max_run[1]) | |
2445 | rs->agg[1] = (rs->io_mb[1]*1024*1000) / rs->max_run[1]; | |
2446 | } | |
2447 | ||
2448 | /* | |
2449 | * don't overwrite last signal output | |
2450 | */ | |
2451 | printf("\n"); | |
2452 | ||
2453 | for (i = 0; i < thread_number; i++) { | |
2454 | td = &threads[i]; | |
2455 | rs = &runstats[td->groupid]; | |
2456 | ||
2457 | show_thread_status(td, rs); | |
2458 | } | |
2459 | ||
2460 | for (i = 0; i < groupid + 1; i++) | |
2461 | show_group_stats(&runstats[i], i); | |
2462 | ||
2463 | show_disk_util(); | |
2464 | } | |
2465 | ||
2466 | int main(int argc, char *argv[]) | |
2467 | { | |
2468 | if (parse_options(argc, argv)) | |
2469 | return 1; | |
2470 | ||
2471 | if (!thread_number) { | |
2472 | printf("Nothing to do\n"); | |
2473 | return 1; | |
2474 | } | |
2475 | ||
2476 | disk_util_timer_arm(); | |
2477 | ||
2478 | run_threads(); | |
2479 | show_run_stats(); | |
2480 | ||
2481 | return 0; | |
2482 | } |