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[PATCH] Add support for specifying read/write mix workloads better
[fio.git] / fio-ini.c
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CommitLineData
1#include <stdio.h>
2#include <stdlib.h>
3#include <unistd.h>
4#include <fcntl.h>
5#include <ctype.h>
6#include <string.h>
7#include <errno.h>
8#include <sys/ipc.h>
9#include <sys/shm.h>
10#include <sys/types.h>
11#include <sys/stat.h>
12
13#include "fio.h"
14
15#define DEF_BS (4096)
16#define DEF_TIMEOUT (0)
17#define DEF_RATE_CYCLE (1000)
18#define DEF_ODIRECT (1)
19#define DEF_IO_ENGINE (FIO_SYNCIO)
20#define DEF_IO_ENGINE_NAME "sync"
21#define DEF_SEQUENTIAL (1)
22#define DEF_RAND_REPEAT (1)
23#define DEF_OVERWRITE (1)
24#define DEF_CREATE (1)
25#define DEF_INVALIDATE (1)
26#define DEF_SYNCIO (0)
27#define DEF_RANDSEED (0xb1899bedUL)
28#define DEF_BWAVGTIME (500)
29#define DEF_CREATE_SER (1)
30#define DEF_CREATE_FSYNC (1)
31#define DEF_LOOPS (1)
32#define DEF_VERIFY (0)
33#define DEF_STONEWALL (0)
34#define DEF_NUMJOBS (1)
35#define DEF_USE_THREAD (0)
36#define DEF_FILE_SIZE (1024 * 1024 * 1024UL)
37#define DEF_ZONE_SIZE (0)
38#define DEF_ZONE_SKIP (0)
39#define DEF_RWMIX_CYCLE (500)
40#define DEF_RWMIX_READ (50)
41
42static char fio_version_string[] = "fio 1.3";
43
44static int repeatable = DEF_RAND_REPEAT;
45static char *ini_file;
46static int max_jobs = MAX_JOBS;
47
48struct thread_data def_thread;
49struct thread_data *threads = NULL;
50
51int rate_quit = 0;
52int write_lat_log = 0;
53int write_bw_log = 0;
54int exitall_on_terminate = 0;
55unsigned long long mlock_size = 0;
56
57static int setup_rate(struct thread_data *td)
58{
59 int nr_reads_per_sec;
60
61 if (!td->rate)
62 return 0;
63
64 if (td->rate < td->ratemin) {
65 fprintf(stderr, "min rate larger than nominal rate\n");
66 return -1;
67 }
68
69 nr_reads_per_sec = (td->rate * 1024) / td->min_bs;
70 td->rate_usec_cycle = 1000000 / nr_reads_per_sec;
71 td->rate_pending_usleep = 0;
72 return 0;
73}
74
75static void setup_log(struct io_log **log)
76{
77 struct io_log *l = malloc(sizeof(*l));
78
79 l->nr_samples = 0;
80 l->max_samples = 1024;
81 l->log = malloc(l->max_samples * sizeof(struct io_sample));
82 *log = l;
83}
84
85void finish_log(struct thread_data *td, struct io_log *log, const char *name)
86{
87 char file_name[256];
88 FILE *f;
89 unsigned int i;
90
91 snprintf(file_name, 200, "client%d_%s.log", td->thread_number, name);
92 f = fopen(file_name, "w");
93 if (!f) {
94 perror("fopen log");
95 return;
96 }
97
98 for (i = 0; i < log->nr_samples; i++)
99 fprintf(f, "%lu, %lu, %u\n", log->log[i].time, log->log[i].val, log->log[i].ddir);
100
101 fclose(f);
102 free(log->log);
103 free(log);
104}
105
106static struct thread_data *get_new_job(int global, struct thread_data *parent)
107{
108 struct thread_data *td;
109
110 if (global)
111 return &def_thread;
112 if (thread_number >= max_jobs)
113 return NULL;
114
115 td = &threads[thread_number++];
116 if (parent)
117 *td = *parent;
118 else
119 memset(td, 0, sizeof(*td));
120
121 td->fd = -1;
122 td->thread_number = thread_number;
123
124 td->ddir = parent->ddir;
125 td->ioprio = parent->ioprio;
126 td->sequential = parent->sequential;
127 td->bs = parent->bs;
128 td->min_bs = parent->min_bs;
129 td->max_bs = parent->max_bs;
130 td->odirect = parent->odirect;
131 td->thinktime = parent->thinktime;
132 td->fsync_blocks = parent->fsync_blocks;
133 td->start_delay = parent->start_delay;
134 td->timeout = parent->timeout;
135 td->io_engine = parent->io_engine;
136 td->create_file = parent->create_file;
137 td->overwrite = parent->overwrite;
138 td->invalidate_cache = parent->invalidate_cache;
139 td->file_size = parent->file_size;
140 td->file_offset = parent->file_offset;
141 td->zone_size = parent->zone_size;
142 td->zone_skip = parent->zone_skip;
143 td->rate = parent->rate;
144 td->ratemin = parent->ratemin;
145 td->ratecycle = parent->ratecycle;
146 td->iodepth = parent->iodepth;
147 td->sync_io = parent->sync_io;
148 td->mem_type = parent->mem_type;
149 td->bw_avg_time = parent->bw_avg_time;
150 td->create_serialize = parent->create_serialize;
151 td->create_fsync = parent->create_fsync;
152 td->loops = parent->loops;
153 td->verify = parent->verify;
154 td->stonewall = parent->stonewall;
155 td->numjobs = parent->numjobs;
156 td->use_thread = parent->use_thread;
157 td->do_disk_util = parent->do_disk_util;
158 memcpy(&td->cpumask, &parent->cpumask, sizeof(td->cpumask));
159 strcpy(td->io_engine_name, parent->io_engine_name);
160
161 return td;
162}
163
164static void put_job(struct thread_data *td)
165{
166 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
167 thread_number--;
168}
169
170static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
171{
172 char *ddir_str[] = { "read", "write", "randread", "randwrite",
173 "rw", NULL, "randrw" };
174 struct stat sb;
175 int numjobs, ddir;
176
177#ifndef FIO_HAVE_LIBAIO
178 if (td->io_engine == FIO_LIBAIO) {
179 fprintf(stderr, "Linux libaio not available\n");
180 return 1;
181 }
182#endif
183#ifndef FIO_HAVE_POSIXAIO
184 if (td->io_engine == FIO_POSIXAIO) {
185 fprintf(stderr, "posix aio not available\n");
186 return 1;
187 }
188#endif
189
190 /*
191 * the def_thread is just for options, it's not a real job
192 */
193 if (td == &def_thread)
194 return 0;
195
196 if (td->io_engine & FIO_SYNCIO)
197 td->iodepth = 1;
198 else {
199 if (!td->iodepth)
200 td->iodepth = 1;
201 }
202
203 /*
204 * only really works for sequential io for now
205 */
206 if (td->zone_size && !td->sequential)
207 td->zone_size = 0;
208
209 td->filetype = FIO_TYPE_FILE;
210 if (!stat(jobname, &sb)) {
211 if (S_ISBLK(sb.st_mode))
212 td->filetype = FIO_TYPE_BD;
213 else if (S_ISCHR(sb.st_mode))
214 td->filetype = FIO_TYPE_CHAR;
215 }
216
217 if (td->filetype == FIO_TYPE_FILE) {
218 if (td->directory[0] != '\0')
219 sprintf(td->file_name, "%s/%s.%d", td->directory, jobname, td->jobnum);
220 else
221 sprintf(td->file_name, "%s.%d", jobname, td->jobnum);
222 } else
223 strncpy(td->file_name, jobname, sizeof(td->file_name) - 1);
224
225 sem_init(&td->mutex, 0, 0);
226
227 td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
228 td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
229 td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
230
231 if (td->min_bs == -1U)
232 td->min_bs = td->bs;
233 if (td->max_bs == -1U)
234 td->max_bs = td->bs;
235 if (td_read(td) && !td_rw(td))
236 td->verify = 0;
237
238 if (td->stonewall && td->thread_number > 1)
239 groupid++;
240
241 td->groupid = groupid;
242
243 if (setup_rate(td))
244 goto err;
245
246 if (write_lat_log) {
247 setup_log(&td->slat_log);
248 setup_log(&td->clat_log);
249 }
250 if (write_bw_log)
251 setup_log(&td->bw_log);
252
253 ddir = td->ddir + (!td->sequential << 1) + (td->iomix << 2);
254
255 if (!job_add_num)
256 printf("Client%d (g=%d): rw=%s, odir=%d, bs=%d-%d, rate=%d, ioengine=%s, iodepth=%d\n", td->thread_number, td->groupid, ddir_str[ddir], td->odirect, td->min_bs, td->max_bs, td->rate, td->io_engine_name, td->iodepth);
257 else if (job_add_num == 1)
258 printf("...\n");
259
260 /*
261 * recurse add identical jobs, clear numjobs and stonewall options
262 * as they don't apply to sub-jobs
263 */
264 numjobs = td->numjobs;
265 while (--numjobs) {
266 struct thread_data *td_new = get_new_job(0, td);
267
268 if (!td_new)
269 goto err;
270
271 td_new->numjobs = 1;
272 td_new->stonewall = 0;
273 td_new->jobnum = numjobs;
274 job_add_num = numjobs - 1;
275
276 if (add_job(td_new, jobname, job_add_num))
277 goto err;
278 }
279 return 0;
280err:
281 put_job(td);
282 return -1;
283}
284
285int init_random_state(struct thread_data *td)
286{
287 unsigned long seeds[4];
288 int fd, num_maps, blocks;
289
290 fd = open("/dev/urandom", O_RDONLY);
291 if (fd == -1) {
292 td_verror(td, errno);
293 return 1;
294 }
295
296 if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
297 td_verror(td, EIO);
298 close(fd);
299 return 1;
300 }
301
302 close(fd);
303
304 srand48_r(seeds[0], &td->bsrange_state);
305 srand48_r(seeds[1], &td->verify_state);
306 srand48_r(seeds[2], &td->rwmix_state);
307
308 if (td->sequential)
309 return 0;
310
311 if (repeatable)
312 seeds[3] = DEF_RANDSEED;
313
314 blocks = (td->io_size + td->min_bs - 1) / td->min_bs;
315 num_maps = blocks / BLOCKS_PER_MAP;
316 td->file_map = malloc(num_maps * sizeof(long));
317 td->num_maps = num_maps;
318 memset(td->file_map, 0, num_maps * sizeof(long));
319
320 srand48_r(seeds[3], &td->random_state);
321 return 0;
322}
323
324static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
325{
326#ifdef FIO_HAVE_CPU_AFFINITY
327 unsigned int i;
328
329 CPU_ZERO(&cpumask);
330
331 for (i = 0; i < sizeof(int) * 8; i++) {
332 if ((1 << i) & cpu)
333 CPU_SET(i, &cpumask);
334 }
335#endif
336}
337
338static unsigned long get_mult(char c)
339{
340 switch (c) {
341 case 'k':
342 case 'K':
343 return 1024;
344 case 'm':
345 case 'M':
346 return 1024 * 1024;
347 case 'g':
348 case 'G':
349 return 1024 * 1024 * 1024;
350 default:
351 return 1;
352 }
353}
354
355/*
356 * convert string after '=' into decimal value, noting any size suffix
357 */
358static int str_cnv(char *p, unsigned long long *val)
359{
360 char *str;
361 int len;
362
363 str = strchr(p, '=');
364 if (!str)
365 return 1;
366
367 str++;
368 len = strlen(str);
369
370 *val = strtoul(str, NULL, 10);
371 if (*val == ULONG_MAX && errno == ERANGE)
372 return 1;
373
374 *val *= get_mult(str[len - 1]);
375 return 0;
376}
377
378static int check_strcnv(char *p, char *name, unsigned long long *val)
379{
380 if (strncmp(p, name, strlen(name) - 1))
381 return 1;
382
383 return str_cnv(p, val);
384}
385
386static void strip_blank_front(char **p)
387{
388 char *s = *p;
389
390 while (isspace(*s))
391 s++;
392}
393
394static void strip_blank_end(char *p)
395{
396 char *s = p + strlen(p) - 1;
397
398 while (isspace(*s) || iscntrl(*s))
399 s--;
400
401 *(s + 1) = '\0';
402}
403
404typedef int (str_cb_fn)(struct thread_data *, char *);
405
406static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
407{
408 char *s = strstr(p, name);
409
410 if (!s)
411 return 1;
412
413 s = strchr(s, '=');
414 if (!s)
415 return 1;
416
417 s++;
418 strip_blank_front(&s);
419 return cb(td, s);
420}
421
422static int check_strstore(char *p, char *name, char *dest)
423{
424 char *s = strstr(p, name);
425
426 if (!s)
427 return 1;
428
429 s = strchr(p, '=');
430 if (!s)
431 return 1;
432
433 s++;
434 strip_blank_front(&s);
435
436 strcpy(dest, s);
437 return 0;
438}
439
440static int __check_range(char *str, unsigned long *val)
441{
442 char suffix;
443
444 if (sscanf(str, "%lu%c", val, &suffix) == 2) {
445 *val *= get_mult(suffix);
446 return 0;
447 }
448
449 if (sscanf(str, "%lu", val) == 1)
450 return 0;
451
452 return 1;
453}
454
455static int check_range(char *p, char *name, unsigned long *s, unsigned long *e)
456{
457 char option[128];
458 char *str, *p1, *p2;
459
460 strcpy(option, p);
461 p = option;
462
463 str = strstr(p, name);
464 if (!str)
465 return 1;
466
467 p += strlen(name);
468
469 str = strchr(p, '=');
470 if (!str)
471 return 1;
472
473 /*
474 * 'p' now holds whatever is after the '=' sign
475 */
476 p1 = str + 1;
477
478 /*
479 * terminate p1 at the '-' sign
480 */
481 p = strchr(p1, '-');
482 if (!p)
483 return 1;
484
485 p2 = p + 1;
486 *p = '\0';
487
488 if (!__check_range(p1, s) && !__check_range(p2, e))
489 return 0;
490
491 return 1;
492}
493
494static int check_int(char *p, char *name, unsigned int *val)
495{
496 char *str;
497
498 if (strncmp(p, name, strlen(name)))
499 return 1;
500
501 str = strstr(p, name);
502 if (!str)
503 return 1;
504
505 str = strchr(p, '=');
506 if (!str)
507 return 1;
508
509 str++;
510
511 if (sscanf(str, "%u", val) == 1)
512 return 0;
513
514 return 1;
515}
516
517static int check_strset(char *p, char *name)
518{
519 return strncmp(p, name, strlen(name));
520}
521
522static int is_empty_or_comment(char *line)
523{
524 unsigned int i;
525
526 for (i = 0; i < strlen(line); i++) {
527 if (line[i] == ';')
528 return 1;
529 if (!isspace(line[i]) && !iscntrl(line[i]))
530 return 0;
531 }
532
533 return 1;
534}
535
536static int str_rw_cb(struct thread_data *td, char *mem)
537{
538 if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
539 td->ddir = DDIR_READ;
540 td->sequential = 1;
541 return 0;
542 } else if (!strncmp(mem, "randread", 8)) {
543 td->ddir = DDIR_READ;
544 td->sequential = 0;
545 return 0;
546 } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
547 td->ddir = DDIR_WRITE;
548 td->sequential = 1;
549 return 0;
550 } else if (!strncmp(mem, "randwrite", 9)) {
551 td->ddir = DDIR_WRITE;
552 td->sequential = 0;
553 return 0;
554 } else if (!strncmp(mem, "rw", 2)) {
555 td->ddir = 0;
556 td->iomix = 1;
557 td->sequential = 1;
558 return 0;
559 } else if (!strncmp(mem, "randrw", 6)) {
560 td->ddir = 0;
561 td->iomix = 1;
562 td->sequential = 0;
563 return 0;
564 }
565
566 fprintf(stderr, "bad data direction: %s\n", mem);
567 return 1;
568}
569
570static int str_verify_cb(struct thread_data *td, char *mem)
571{
572 if (!strncmp(mem, "0", 1)) {
573 td->verify = VERIFY_NONE;
574 return 0;
575 } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
576 td->verify = VERIFY_MD5;
577 return 0;
578 } else if (!strncmp(mem, "crc32", 5)) {
579 td->verify = VERIFY_CRC32;
580 return 0;
581 }
582
583 fprintf(stderr, "bad verify type: %s\n", mem);
584 return 1;
585}
586
587static int str_mem_cb(struct thread_data *td, char *mem)
588{
589 if (!strncmp(mem, "malloc", 6)) {
590 td->mem_type = MEM_MALLOC;
591 return 0;
592 } else if (!strncmp(mem, "shm", 3)) {
593 td->mem_type = MEM_SHM;
594 return 0;
595 } else if (!strncmp(mem, "mmap", 4)) {
596 td->mem_type = MEM_MMAP;
597 return 0;
598 }
599
600 fprintf(stderr, "bad mem type: %s\n", mem);
601 return 1;
602}
603
604static int str_ioengine_cb(struct thread_data *td, char *str)
605{
606 if (!strncmp(str, "linuxaio", 8) || !strncmp(str, "aio", 3) ||
607 !strncmp(str, "libaio", 6)) {
608 strcpy(td->io_engine_name, "libaio");
609 td->io_engine = FIO_LIBAIO;
610 return 0;
611 } else if (!strncmp(str, "posixaio", 8)) {
612 strcpy(td->io_engine_name, "posixaio");
613 td->io_engine = FIO_POSIXAIO;
614 return 0;
615 } else if (!strncmp(str, "sync", 4)) {
616 strcpy(td->io_engine_name, "sync");
617 td->io_engine = FIO_SYNCIO;
618 return 0;
619 } else if (!strncmp(str, "mmap", 4)) {
620 strcpy(td->io_engine_name, "mmap");
621 td->io_engine = FIO_MMAPIO;
622 return 0;
623 } else if (!strncmp(str, "sgio", 4)) {
624 strcpy(td->io_engine_name, "sgio");
625 td->io_engine = FIO_SGIO;
626 return 0;
627 } else if (!strncmp(str, "splice", 6)) {
628 strcpy(td->io_engine_name, "splice");
629 td->io_engine = FIO_SPLICEIO;
630 return 0;
631 }
632
633 fprintf(stderr, "bad ioengine type: %s\n", str);
634 return 1;
635}
636
637static int str_iolog_cb(struct thread_data *td, char *file)
638{
639 strncpy(td->iolog_file, file, sizeof(td->iolog_file) - 1);
640
641 return 0;
642}
643
644int parse_jobs_ini(char *file)
645{
646 unsigned int prioclass, prio, cpu, global, il;
647 unsigned long long ull;
648 unsigned long ul1, ul2;
649 struct thread_data *td;
650 char *string, *name;
651 fpos_t off;
652 FILE *f;
653 char *p;
654
655 f = fopen(file, "r");
656 if (!f) {
657 perror("fopen job file");
658 return 1;
659 }
660
661 string = malloc(4096);
662 name = malloc(256);
663
664 while ((p = fgets(string, 4096, f)) != NULL) {
665 if (is_empty_or_comment(p))
666 continue;
667 if (sscanf(p, "[%s]", name) != 1)
668 continue;
669
670 global = !strncmp(name, "global", 6);
671
672 name[strlen(name) - 1] = '\0';
673
674 td = get_new_job(global, &def_thread);
675 if (!td)
676 return 1;
677
678 fgetpos(f, &off);
679 while ((p = fgets(string, 4096, f)) != NULL) {
680 if (is_empty_or_comment(p))
681 continue;
682 if (strstr(p, "["))
683 break;
684 strip_blank_front(&p);
685 strip_blank_end(p);
686
687 if (!check_int(p, "prio", &prio)) {
688#ifndef FIO_HAVE_IOPRIO
689 fprintf(stderr, "io priorities not available\n");
690 return 1;
691#endif
692 td->ioprio |= prio;
693 fgetpos(f, &off);
694 continue;
695 }
696 if (!check_int(p, "prioclass", &prioclass)) {
697#ifndef FIO_HAVE_IOPRIO
698 fprintf(stderr, "io priorities not available\n");
699 return 1;
700#endif
701 td->ioprio |= prioclass << IOPRIO_CLASS_SHIFT;
702 fgetpos(f, &off);
703 continue;
704 }
705 if (!check_int(p, "direct", &td->odirect)) {
706 fgetpos(f, &off);
707 continue;
708 }
709 if (!check_int(p, "rate", &td->rate)) {
710 fgetpos(f, &off);
711 continue;
712 }
713 if (!check_int(p, "ratemin", &td->ratemin)) {
714 fgetpos(f, &off);
715 continue;
716 }
717 if (!check_int(p, "ratecycle", &td->ratecycle)) {
718 fgetpos(f, &off);
719 continue;
720 }
721 if (!check_int(p, "thinktime", &td->thinktime)) {
722 fgetpos(f, &off);
723 continue;
724 }
725 if (!check_int(p, "cpumask", &cpu)) {
726#ifndef FIO_HAVE_CPU_AFFINITY
727 fprintf(stderr, "cpu affinity not available\n");
728 return 1;
729#endif
730 fill_cpu_mask(td->cpumask, cpu);
731 fgetpos(f, &off);
732 continue;
733 }
734 if (!check_int(p, "fsync", &td->fsync_blocks)) {
735 fgetpos(f, &off);
736 td->end_fsync = 1;
737 continue;
738 }
739 if (!check_int(p, "startdelay", &td->start_delay)) {
740 fgetpos(f, &off);
741 continue;
742 }
743 if (!check_int(p, "timeout", &td->timeout)) {
744 fgetpos(f, &off);
745 continue;
746 }
747 if (!check_int(p, "invalidate",&td->invalidate_cache)) {
748 fgetpos(f, &off);
749 continue;
750 }
751 if (!check_int(p, "iodepth", &td->iodepth)) {
752 fgetpos(f, &off);
753 continue;
754 }
755 if (!check_int(p, "sync", &td->sync_io)) {
756 fgetpos(f, &off);
757 continue;
758 }
759 if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
760 fgetpos(f, &off);
761 continue;
762 }
763 if (!check_int(p, "create_serialize", &td->create_serialize)) {
764 fgetpos(f, &off);
765 continue;
766 }
767 if (!check_int(p, "create_fsync", &td->create_fsync)) {
768 fgetpos(f, &off);
769 continue;
770 }
771 if (!check_int(p, "end_fsync", &td->end_fsync)) {
772 fgetpos(f, &off);
773 continue;
774 }
775 if (!check_int(p, "loops", &td->loops)) {
776 fgetpos(f, &off);
777 continue;
778 }
779 if (!check_int(p, "numjobs", &td->numjobs)) {
780 fgetpos(f, &off);
781 continue;
782 }
783 if (!check_int(p, "overwrite", &td->overwrite)) {
784 fgetpos(f, &off);
785 continue;
786 }
787 if (!check_int(p, "rwmixcycle", &td->rwmixcycle)) {
788 fgetpos(f, &off);
789 continue;
790 }
791 if (!check_int(p, "rwmixread", &il)) {
792 if (il > 100)
793 il = 100;
794 td->rwmixread = il;
795 fgetpos(f, &off);
796 continue;
797 }
798 if (!check_int(p, "rwmixwrite", &il)) {
799 if (il > 100)
800 il = 100;
801 td->rwmixread = 100 - il;
802 fgetpos(f, &off);
803 continue;
804 }
805 if (!check_range(p, "bsrange", &ul1, &ul2)) {
806 if (ul1 > ul2) {
807 td->max_bs = ul1;
808 td->min_bs = ul2;
809 } else {
810 td->max_bs = ul2;
811 td->min_bs = ul1;
812 }
813 fgetpos(f, &off);
814 continue;
815 }
816 if (!check_strcnv(p, "bs", &ull)) {
817 td->bs = ull;
818 fgetpos(f, &off);
819 continue;
820 }
821 if (!check_strcnv(p, "size", &td->file_size)) {
822 fgetpos(f, &off);
823 continue;
824 }
825 if (!check_strcnv(p, "offset", &td->file_offset)) {
826 fgetpos(f, &off);
827 continue;
828 }
829 if (!check_strcnv(p, "zonesize", &td->zone_size)) {
830 fgetpos(f, &off);
831 continue;
832 }
833 if (!check_strcnv(p, "zoneskip", &td->zone_skip)) {
834 fgetpos(f, &off);
835 continue;
836 }
837 if (!check_strcnv(p, "lockmem", &mlock_size)) {
838 fgetpos(f, &off);
839 continue;
840 }
841 if (!check_strstore(p, "directory", td->directory)) {
842 fgetpos(f, &off);
843 continue;
844 }
845 if (!check_str(p, "mem", str_mem_cb, td)) {
846 fgetpos(f, &off);
847 continue;
848 }
849 if (!check_str(p, "verify", str_verify_cb, td)) {
850 fgetpos(f, &off);
851 continue;
852 }
853 if (!check_str(p, "rw", str_rw_cb, td)) {
854 fgetpos(f, &off);
855 continue;
856 }
857 if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
858 fgetpos(f, &off);
859 continue;
860 }
861 if (!check_strset(p, "create")) {
862 td->create_file = 1;
863 fgetpos(f, &off);
864 continue;
865 }
866 if (!check_strset(p, "exitall")) {
867 exitall_on_terminate = 1;
868 fgetpos(f, &off);
869 continue;
870 }
871 if (!check_strset(p, "stonewall")) {
872 td->stonewall = 1;
873 fgetpos(f, &off);
874 continue;
875 }
876 if (!check_strset(p, "thread")) {
877 td->use_thread = 1;
878 fgetpos(f, &off);
879 continue;
880 }
881 if (!check_str(p, "iolog", str_iolog_cb, td)) {
882 td->iolog = 1;
883 fgetpos(f, &off);
884 continue;
885 }
886
887 printf("Client%d: bad option %s\n",td->thread_number,p);
888 return 1;
889 }
890 fsetpos(f, &off);
891
892 if (add_job(td, name, 0))
893 return 1;
894 }
895
896 free(string);
897 free(name);
898 fclose(f);
899 return 0;
900}
901
902static int fill_def_thread(void)
903{
904 memset(&def_thread, 0, sizeof(def_thread));
905
906 if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
907 perror("sched_getaffinity");
908 return 1;
909 }
910
911 /*
912 * fill globals
913 */
914 def_thread.ddir = DDIR_READ;
915 def_thread.iomix = 0;
916 def_thread.bs = DEF_BS;
917 def_thread.min_bs = -1;
918 def_thread.max_bs = -1;
919 def_thread.io_engine = DEF_IO_ENGINE;
920 strcpy(def_thread.io_engine_name, DEF_IO_ENGINE_NAME);
921 def_thread.odirect = DEF_ODIRECT;
922 def_thread.ratecycle = DEF_RATE_CYCLE;
923 def_thread.sequential = DEF_SEQUENTIAL;
924 def_thread.timeout = DEF_TIMEOUT;
925 def_thread.create_file = DEF_CREATE;
926 def_thread.overwrite = DEF_OVERWRITE;
927 def_thread.invalidate_cache = DEF_INVALIDATE;
928 def_thread.sync_io = DEF_SYNCIO;
929 def_thread.mem_type = MEM_MALLOC;
930 def_thread.bw_avg_time = DEF_BWAVGTIME;
931 def_thread.create_serialize = DEF_CREATE_SER;
932 def_thread.create_fsync = DEF_CREATE_FSYNC;
933 def_thread.loops = DEF_LOOPS;
934 def_thread.verify = DEF_VERIFY;
935 def_thread.stonewall = DEF_STONEWALL;
936 def_thread.numjobs = DEF_NUMJOBS;
937 def_thread.use_thread = DEF_USE_THREAD;
938 def_thread.rwmixcycle = DEF_RWMIX_CYCLE;
939 def_thread.rwmixread = DEF_RWMIX_READ;
940#ifdef FIO_HAVE_DISK_UTIL
941 def_thread.do_disk_util = 1;
942#endif
943
944 return 0;
945}
946
947static void usage(char *name)
948{
949 printf("%s\n", fio_version_string);
950 printf("\t-s IO is sequential\n");
951 printf("\t-b Block size in KiB for each IO\n");
952 printf("\t-t Runtime in seconds\n");
953 printf("\t-R Exit all threads on failure to meet rate goal\n");
954 printf("\t-o Use O_DIRECT\n");
955 printf("\t-l Generate per-job latency logs\n");
956 printf("\t-w Generate per-job bandwidth logs\n");
957 printf("\t-f Job file (Required)\n");
958 printf("\t-v Print version info and exit\n");
959}
960
961static void parse_cmd_line(int argc, char *argv[])
962{
963 int c;
964
965 while ((c = getopt(argc, argv, "s:b:t:r:R:o:f:lwvh")) != EOF) {
966 switch (c) {
967 case 's':
968 def_thread.sequential = !!atoi(optarg);
969 break;
970 case 'b':
971 def_thread.bs = atoi(optarg);
972 def_thread.bs <<= 10;
973 if (!def_thread.bs) {
974 printf("bad block size\n");
975 def_thread.bs = DEF_BS;
976 }
977 break;
978 case 't':
979 def_thread.timeout = atoi(optarg);
980 break;
981 case 'r':
982 repeatable = !!atoi(optarg);
983 break;
984 case 'R':
985 rate_quit = !!atoi(optarg);
986 break;
987 case 'o':
988 def_thread.odirect = !!atoi(optarg);
989 break;
990 case 'f':
991 ini_file = strdup(optarg);
992 break;
993 case 'l':
994 write_lat_log = 1;
995 break;
996 case 'w':
997 write_bw_log = 1;
998 break;
999 case 'h':
1000 usage(argv[0]);
1001 exit(0);
1002 case 'v':
1003 printf("%s\n", fio_version_string);
1004 exit(0);
1005 }
1006 }
1007
1008 if (!ini_file && argc > 1 && argv[argc - 1][0] != '-')
1009 ini_file = strdup(argv[argc - 1]);
1010}
1011
1012static void free_shm(void)
1013{
1014 struct shmid_ds sbuf;
1015
1016 if (threads) {
1017 shmdt(threads);
1018 threads = NULL;
1019 shmctl(shm_id, IPC_RMID, &sbuf);
1020 }
1021}
1022
1023static int setup_thread_area(void)
1024{
1025 /*
1026 * 1024 is too much on some machines, scale max_jobs if
1027 * we get a failure that looks like too large a shm segment
1028 */
1029 do {
1030 int s = max_jobs * sizeof(struct thread_data);
1031
1032 shm_id = shmget(0, s, IPC_CREAT | 0600);
1033 if (shm_id != -1)
1034 break;
1035 if (errno != EINVAL) {
1036 perror("shmget");
1037 break;
1038 }
1039
1040 max_jobs >>= 1;
1041 } while (max_jobs);
1042
1043 if (shm_id == -1)
1044 return 1;
1045
1046 threads = shmat(shm_id, NULL, 0);
1047 if (threads == (void *) -1) {
1048 perror("shmat");
1049 return 1;
1050 }
1051
1052 atexit(free_shm);
1053 return 0;
1054}
1055
1056int parse_options(int argc, char *argv[])
1057{
1058 if (setup_thread_area())
1059 return 1;
1060 if (fill_def_thread())
1061 return 1;
1062
1063 parse_cmd_line(argc, argv);
1064
1065 if (!ini_file) {
1066 printf("Need job file\n");
1067 usage(argv[0]);
1068 return 1;
1069 }
1070
1071 if (parse_jobs_ini(ini_file)) {
1072 usage(argv[0]);
1073 return 1;
1074 }
1075
1076 return 0;
1077}
fio - Flexible IO Tester