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[PATCH] Fixup check_range() so it accepts any combination of suffixes
[fio.git] / fio-ini.c
CommitLineData
ebac4655
JA		 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
3e7ba7c5 38static char fio_version_string[] = "fio 1.1";
ebac4655
JA		 39
40static int repeatable = DEF_RAND_REPEAT;
41static char *ini_file;
42static int max_jobs = MAX_JOBS;
43
44struct thread_data def_thread;
45struct thread_data *threads = NULL;
46
47int rate_quit = 0;
48int write_lat_log = 0;
49int write_bw_log = 0;
50int exitall_on_terminate = 0;
51
52static int setup_rate(struct thread_data *td)
53{
54 int nr_reads_per_sec;
55
56 if (!td->rate)
57 return 0;
58
59 if (td->rate < td->ratemin) {
60 fprintf(stderr, "min rate larger than nominal rate\n");
61 return -1;
62 }
63
64 nr_reads_per_sec = (td->rate * 1024) / td->min_bs;
65 td->rate_usec_cycle = 1000000 / nr_reads_per_sec;
66 td->rate_pending_usleep = 0;
67 return 0;
68}
69
70static void setup_log(struct io_log **log)
71{
72 struct io_log *l = malloc(sizeof(*l));
73
74 l->nr_samples = 0;
75 l->max_samples = 1024;
76 l->log = malloc(l->max_samples * sizeof(struct io_sample));
77 *log = l;
78}
79
80void finish_log(struct thread_data *td, struct io_log *log, const char *name)
81{
82 char file_name[128];
83 FILE *f;
84 unsigned int i;
85
86 sprintf(file_name, "client%d_%s.log", td->thread_number, name);
87 f = fopen(file_name, "w");
88 if (!f) {
89 perror("fopen log");
90 return;
91 }
92
93 for (i = 0; i < log->nr_samples; i++)
94 fprintf(f, "%lu, %lu, %u\n", log->log[i].time, log->log[i].val, log->log[i].ddir);
95
96 fclose(f);
97 free(log->log);
98 free(log);
99}
100
101static struct thread_data *get_new_job(int global, struct thread_data *parent)
102{
103 struct thread_data *td;
104
105 if (global)
106 return &def_thread;
107 if (thread_number >= max_jobs)
108 return NULL;
109
110 td = &threads[thread_number++];
111 memset(td, 0, sizeof(*td));
112
113 td->fd = -1;
114 td->thread_number = thread_number;
115
116 td->ddir = parent->ddir;
117 td->ioprio = parent->ioprio;
118 td->sequential = parent->sequential;
119 td->bs = parent->bs;
120 td->min_bs = parent->min_bs;
121 td->max_bs = parent->max_bs;
122 td->odirect = parent->odirect;
123 td->thinktime = parent->thinktime;
124 td->fsync_blocks = parent->fsync_blocks;
125 td->start_delay = parent->start_delay;
126 td->timeout = parent->timeout;
127 td->io_engine = parent->io_engine;
128 td->create_file = parent->create_file;
129 td->overwrite = parent->overwrite;
130 td->invalidate_cache = parent->invalidate_cache;
131 td->file_size = parent->file_size;
132 td->file_offset = parent->file_offset;
133 td->rate = parent->rate;
134 td->ratemin = parent->ratemin;
135 td->ratecycle = parent->ratecycle;
136 td->iodepth = parent->iodepth;
137 td->sync_io = parent->sync_io;
138 td->mem_type = parent->mem_type;
139 td->bw_avg_time = parent->bw_avg_time;
140 td->create_serialize = parent->create_serialize;
141 td->create_fsync = parent->create_fsync;
142 td->loops = parent->loops;
143 td->verify = parent->verify;
144 td->stonewall = parent->stonewall;
145 td->numjobs = parent->numjobs;
146 td->use_thread = parent->use_thread;
147 td->do_disk_util = parent->do_disk_util;
148 memcpy(&td->cpumask, &parent->cpumask, sizeof(td->cpumask));
149 strcpy(td->io_engine_name, parent->io_engine_name);
150
151 return td;
152}
153
154static void put_job(struct thread_data *td)
155{
156 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
157 thread_number--;
158}
159
160static int add_job(struct thread_data *td, const char *jobname, int prioclass,
161 int prio)
162{
163 char *ddir_str[] = { "read", "write", "randread", "randwrite" };
164 struct stat sb;
165 int numjobs, ddir;
166
167#ifndef FIO_HAVE_LIBAIO
168 if (td->io_engine == FIO_LIBAIO) {
169 fprintf(stderr, "Linux libaio not available\n");
170 return 1;
171 }
172#endif
173#ifndef FIO_HAVE_POSIXAIO
174 if (td->io_engine == FIO_POSIXAIO) {
175 fprintf(stderr, "posix aio not available\n");
176 return 1;
177 }
178#endif
179#ifdef FIO_HAVE_IOPRIO
180 td->ioprio = (prioclass << IOPRIO_CLASS_SHIFT) | prio;
181#endif
182
183 /*
184 * the def_thread is just for options, it's not a real job
185 */
186 if (td == &def_thread)
187 return 0;
188
189 if (td->io_engine & FIO_SYNCIO)
190 td->iodepth = 1;
191 else {
192 if (!td->iodepth)
193 td->iodepth = 1;
194 }
195
196 td->filetype = FIO_TYPE_FILE;
197 if (!stat(jobname, &sb) && S_ISBLK(sb.st_mode))
198 td->filetype = FIO_TYPE_BD;
199
200 if (td->filetype == FIO_TYPE_FILE) {
201 if (td->directory[0] != '\0')
202 sprintf(td->file_name, "%s/%s.%d", td->directory, jobname, td->thread_number);
203 else
204 sprintf(td->file_name, "%s.%d", jobname, td->thread_number);
205 } else
206 strcpy(td->file_name, jobname);
207
208 sem_init(&td->mutex, 0, 0);
209
210 td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
211 td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
212 td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
213
214 if (td->min_bs == -1U)
215 td->min_bs = td->bs;
216 if (td->max_bs == -1U)
217 td->max_bs = td->bs;
218 if (td_read(td))
219 td->verify = 0;
220
221 if (td->stonewall && td->thread_number > 1)
222 groupid++;
223
224 td->groupid = groupid;
225
226 if (setup_rate(td))
227 goto err;
228
229 if (write_lat_log) {
230 setup_log(&td->slat_log);
231 setup_log(&td->clat_log);
232 }
233 if (write_bw_log)
234 setup_log(&td->bw_log);
235
236 ddir = td->ddir + (!td->sequential << 1);
237 printf("Client%d (g=%d): rw=%s, prio=%d/%d, odir=%d, bs=%d-%d, rate=%d, ioengine=%s, iodepth=%d\n", td->thread_number, td->groupid, ddir_str[ddir], prioclass, prio, td->odirect, td->min_bs, td->max_bs, td->rate, td->io_engine_name, td->iodepth);
238
239 /*
240 * recurse add identical jobs, clear numjobs and stonewall options
241 * as they don't apply to sub-jobs
242 */
243 numjobs = td->numjobs;
244 while (--numjobs) {
245 struct thread_data *td_new = get_new_job(0, td);
246
247 if (!td_new)
248 goto err;
249
250 td_new->numjobs = 1;
251 td_new->stonewall = 0;
252
253 if (add_job(td_new, jobname, prioclass, prio))
254 goto err;
255 }
256 return 0;
257err:
258 put_job(td);
259 return -1;
260}
261
262int init_random_state(struct thread_data *td)
263{
264 unsigned long seed;
265 int fd, num_maps, blocks;
266
267 fd = open("/dev/random", O_RDONLY);
268 if (fd == -1) {
269 td_verror(td, errno);
270 return 1;
271 }
272
273 if (read(fd, &seed, sizeof(seed)) < (int) sizeof(seed)) {
274 td_verror(td, EIO);
275 close(fd);
276 return 1;
277 }
278
279 close(fd);
280
281 srand48_r(seed, &td->bsrange_state);
282 srand48_r(seed, &td->verify_state);
283
284 if (td->sequential)
285 return 0;
286
287 if (repeatable)
288 seed = DEF_RANDSEED;
289
290 blocks = (td->io_size + td->min_bs - 1) / td->min_bs;
291 num_maps = blocks / BLOCKS_PER_MAP;
292 td->file_map = malloc(num_maps * sizeof(long));
293 td->num_maps = num_maps;
294 memset(td->file_map, 0, num_maps * sizeof(long));
295
296 srand48_r(seed, &td->random_state);
297 return 0;
298}
299
300static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
301{
302#ifdef FIO_HAVE_CPU_AFFINITY
303 unsigned int i;
304
305 CPU_ZERO(&cpumask);
306
307 for (i = 0; i < sizeof(int) * 8; i++) {
308 if ((1 << i) & cpu)
309 CPU_SET(i, &cpumask);
310 }
311#endif
312}
313
314static unsigned long get_mult(char c)
315{
316 switch (c) {
317 case 'k':
318 case 'K':
319 return 1024;
320 case 'm':
321 case 'M':
322 return 1024 * 1024;
323 case 'g':
324 case 'G':
325 return 1024 * 1024 * 1024;
326 default:
327 return 1;
328 }
329}
330
331/*
332 * convert string after '=' into decimal value, noting any size suffix
333 */
334static int str_cnv(char *p, unsigned long long *val)
335{
336 char *str;
337 int len;
338
339 str = strstr(p, "=");
340 if (!str)
341 return 1;
342
343 str++;
344 len = strlen(str);
345
346 *val = strtoul(str, NULL, 10);
347 if (*val == ULONG_MAX && errno == ERANGE)
348 return 1;
349
350 *val *= get_mult(str[len - 2]);
351 return 0;
352}
353
354static int check_strcnv(char *p, char *name, unsigned long long *val)
355{
356 if (!strstr(p, name))
357 return 1;
358
359 return str_cnv(p, val);
360}
361
362static void strip_blank_front(char **p)
363{
364 char *s = *p;
365
366 while (isblank(*s))
367 s++;
368}
369
370static void strip_blank_end(char *p)
371{
372 while (isblank(*p)) {
373 *p = '\0';
374 p--;
375 }
376}
377
378typedef int (str_cb_fn)(struct thread_data *, char *);
379
380static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
381{
382 char *s = strstr(p, name);
383
384 if (!s)
385 return 1;
386
387 s = strstr(s, "=");
388 if (!s)
389 return 1;
390
391 s++;
392 strip_blank_front(&s);
393 return cb(td, s);
394}
395
396static int check_strstore(char *p, char *name, char *dest)
397{
398 char *s = strstr(p, name);
399
400 if (!s)
401 return 1;
402
403 s = strstr(p, "=");
404 if (!s)
405 return 1;
406
407 s++;
408 strip_blank_front(&s);
409
410 strcpy(dest, s);
411
412 s = dest + strlen(dest) - 1;
413 strip_blank_end(s);
414 return 0;
415}
416
01617be6 417static int __check_range(char *str, unsigned long *val)
ebac4655 418{
01617be6 419 char suffix;
ebac4655 420
01617be6
JA		 421 if (sscanf(str, "%lu%c", val, &suffix) == 2) {
422 *val *= get_mult(suffix);
ebac4655
JA		 423 return 0;
424 }
425
01617be6 426 if (sscanf(str, "%lu", val) == 1)
ebac4655 427 return 0;
ebac4655 428
01617be6
JA		 429 return 1;
430}
431
432static int check_range(char *p, char *name, unsigned long *s, unsigned long *e)
433{
434 char option[128];
435 char *str, *p1, *p2;
436
437 strcpy(option, p);
438 p = option;
439
440 str = strstr(p, name);
441 if (!str)
442 return 1;
ebac4655 443
01617be6
JA		 444 p += strlen(name);
445
446 str = strchr(p, '=');
447 if (!str)
448 return 1;
449
450 /*
451 * 'p' now holds whatever is after the '=' sign
452 */
453 p1 = str + 1;
454
455 /*
456 * terminate p1 at the '-' sign
457 */
458 p = strchr(p1, '-');
459 if (!p)
460 return 1;
461
462 p2 = p + 1;
463 *p = '\0';
464
465 if (!__check_range(p1, s) && !__check_range(p2, e))
ebac4655
JA		 466 return 0;
467
468 return 1;
ebac4655
JA		 469}
470
471static int check_int(char *p, char *name, unsigned int *val)
472{
473 char str[128];
474
475 sprintf(str, "%s=%%d", name);
476 if (sscanf(p, str, val) == 1)
477 return 0;
478
479 sprintf(str, "%s = %%d", name);
480 if (sscanf(p, str, val) == 1)
481 return 0;
482
483 return 1;
484}
485
486static int check_strset(char *p, char *name)
487{
488 return strncmp(p, name, strlen(name));
489}
490
491static int is_empty_or_comment(char *line)
492{
493 unsigned int i;
494
495 for (i = 0; i < strlen(line); i++) {
496 if (line[i] == ';')
497 return 1;
498 if (!isspace(line[i]) && !iscntrl(line[i]))
499 return 0;
500 }
501
502 return 1;
503}
504
505static int str_rw_cb(struct thread_data *td, char *mem)
506{
507 if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
508 td->ddir = DDIR_READ;
509 td->sequential = 1;
510 return 0;
511 } else if (!strncmp(mem, "randread", 8)) {
512 td->ddir = DDIR_READ;
513 td->sequential = 0;
514 return 0;
515 } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
516 td->ddir = DDIR_WRITE;
517 td->sequential = 1;
518 return 0;
519 } else if (!strncmp(mem, "randwrite", 9)) {
520 td->ddir = DDIR_WRITE;
521 td->sequential = 0;
522 return 0;
523 }
524
525 fprintf(stderr, "bad data direction: %s\n", mem);
526 return 1;
527}
528
529static int str_verify_cb(struct thread_data *td, char *mem)
530{
531 if (!strncmp(mem, "0", 1)) {
532 td->verify = VERIFY_NONE;
533 return 0;
534 } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
535 td->verify = VERIFY_MD5;
536 return 0;
537 } else if (!strncmp(mem, "crc32", 5)) {
538 td->verify = VERIFY_CRC32;
539 return 0;
540 }
541
542 fprintf(stderr, "bad verify type: %s\n", mem);
543 return 1;
544}
545
546static int str_mem_cb(struct thread_data *td, char *mem)
547{
548 if (!strncmp(mem, "malloc", 6)) {
549 td->mem_type = MEM_MALLOC;
550 return 0;
551 } else if (!strncmp(mem, "shm", 3)) {
552 td->mem_type = MEM_SHM;
553 return 0;
554 } else if (!strncmp(mem, "mmap", 4)) {
555 td->mem_type = MEM_MMAP;
556 return 0;
557 }
558
559 fprintf(stderr, "bad mem type: %s\n", mem);
560 return 1;
561}
562
563static int str_ioengine_cb(struct thread_data *td, char *str)
564{
565 if (!strncmp(str, "linuxaio", 8) || !strncmp(str, "aio", 3) ||
566 !strncmp(str, "libaio", 6)) {
567 strcpy(td->io_engine_name, "libaio");
568 td->io_engine = FIO_LIBAIO;
569 return 0;
570 } else if (!strncmp(str, "posixaio", 8)) {
571 strcpy(td->io_engine_name, "posixaio");
572 td->io_engine = FIO_POSIXAIO;
573 return 0;
574 } else if (!strncmp(str, "sync", 4)) {
575 strcpy(td->io_engine_name, "sync");
576 td->io_engine = FIO_SYNCIO;
577 return 0;
578 } else if (!strncmp(str, "mmap", 4)) {
579 strcpy(td->io_engine_name, "mmap");
580 td->io_engine = FIO_MMAPIO;
581 return 0;
582 } else if (!strncmp(str, "sgio", 4)) {
583 strcpy(td->io_engine_name, "sgio");
584 td->io_engine = FIO_SGIO;
585 return 0;
586 }
587
588 fprintf(stderr, "bad ioengine type: %s\n", str);
589 return 1;
590}
591
592
593int parse_jobs_ini(char *file)
594{
595 unsigned int prioclass, prio, cpu, global;
596 unsigned long long ull;
597 unsigned long ul1, ul2;
598 struct thread_data *td;
599 char *string, *name;
600 fpos_t off;
601 FILE *f;
602 char *p;
603
604 f = fopen(file, "r");
605 if (!f) {
606 perror("fopen");
607 return 1;
608 }
609
610 string = malloc(4096);
611 name = malloc(256);
612
613 while ((p = fgets(string, 4096, f)) != NULL) {
614 if (is_empty_or_comment(p))
615 continue;
616 if (sscanf(p, "[%s]", name) != 1)
617 continue;
618
619 global = !strncmp(name, "global", 6);
620
621 name[strlen(name) - 1] = '\0';
622
623 td = get_new_job(global, &def_thread);
624 if (!td)
625 return 1;
626
627 prioclass = 2;
628 prio = 4;
629
630 fgetpos(f, &off);
631 while ((p = fgets(string, 4096, f)) != NULL) {
632 if (is_empty_or_comment(p))
633 continue;
634 if (strstr(p, "["))
635 break;
636 if (!check_int(p, "prio", &prio)) {
637#ifndef FIO_HAVE_IOPRIO
638 fprintf(stderr, "io priorities not available\n");
639 return 1;
640#endif
641 fgetpos(f, &off);
642 continue;
643 }
644 if (!check_int(p, "prioclass", &prioclass)) {
645#ifndef FIO_HAVE_IOPRIO
646 fprintf(stderr, "io priorities not available\n");
647 return 1;
648#endif
649 fgetpos(f, &off);
650 continue;
651 }
652 if (!check_int(p, "direct", &td->odirect)) {
653 fgetpos(f, &off);
654 continue;
655 }
656 if (!check_int(p, "rate", &td->rate)) {
657 fgetpos(f, &off);
658 continue;
659 }
660 if (!check_int(p, "ratemin", &td->ratemin)) {
661 fgetpos(f, &off);
662 continue;
663 }
664 if (!check_int(p, "ratecycle", &td->ratecycle)) {
665 fgetpos(f, &off);
666 continue;
667 }
668 if (!check_int(p, "thinktime", &td->thinktime)) {
669 fgetpos(f, &off);
670 continue;
671 }
672 if (!check_int(p, "cpumask", &cpu)) {
673#ifndef FIO_HAVE_CPU_AFFINITY
674 fprintf(stderr, "cpu affinity not available\n");
675 return 1;
676#endif
677 fill_cpu_mask(td->cpumask, cpu);
678 fgetpos(f, &off);
679 continue;
680 }
681 if (!check_int(p, "fsync", &td->fsync_blocks)) {
682 fgetpos(f, &off);
683 continue;
684 }
685 if (!check_int(p, "startdelay", &td->start_delay)) {
686 fgetpos(f, &off);
687 continue;
688 }
689 if (!check_int(p, "timeout", &td->timeout)) {
690 fgetpos(f, &off);
691 continue;
692 }
693 if (!check_int(p, "invalidate",&td->invalidate_cache)) {
694 fgetpos(f, &off);
695 continue;
696 }
697 if (!check_int(p, "iodepth", &td->iodepth)) {
698 fgetpos(f, &off);
699 continue;
700 }
701 if (!check_int(p, "sync", &td->sync_io)) {
702 fgetpos(f, &off);
703 continue;
704 }
705 if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
706 fgetpos(f, &off);
707 continue;
708 }
709 if (!check_int(p, "create_serialize", &td->create_serialize)) {
710 fgetpos(f, &off);
711 continue;
712 }
713 if (!check_int(p, "create_fsync", &td->create_fsync)) {
714 fgetpos(f, &off);
715 continue;
716 }
717 if (!check_int(p, "loops", &td->loops)) {
718 fgetpos(f, &off);
719 continue;
720 }
721 if (!check_int(p, "numjobs", &td->numjobs)) {
722 fgetpos(f, &off);
723 continue;
724 }
725 if (!check_int(p, "overwrite", &td->overwrite)) {
726 fgetpos(f, &off);
727 continue;
728 }
729 if (!check_range(p, "bsrange", &ul1, &ul2)) {
730 if (ul1 > ul2) {
731 td->max_bs = ul1;
732 td->min_bs = ul2;
733 } else {
734 td->max_bs = ul2;
735 td->min_bs = ul1;
736 }
737 fgetpos(f, &off);
738 continue;
739 }
740 if (!check_strcnv(p, "bs", &ull)) {
741 td->bs = ull;
742 fgetpos(f, &off);
743 continue;
744 }
745 if (!check_strcnv(p, "size", &td->file_size)) {
746 fgetpos(f, &off);
747 continue;
748 }
749 if (!check_strcnv(p, "offset", &td->file_offset)) {
750 fgetpos(f, &off);
751 continue;
752 }
753 if (!check_strstore(p, "directory", td->directory)) {
754 fgetpos(f, &off);
755 continue;
756 }
757 if (!check_str(p, "mem", str_mem_cb, td)) {
758 fgetpos(f, &off);
759 continue;
760 }
761 if (!check_str(p, "verify", str_verify_cb, td)) {
762 fgetpos(f, &off);
763 continue;
764 }
765 if (!check_str(p, "rw", str_rw_cb, td)) {
766 fgetpos(f, &off);
767 continue;
768 }
769 if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
770 fgetpos(f, &off);
771 continue;
772 }
773 if (!check_strset(p, "create")) {
774 td->create_file = 1;
775 fgetpos(f, &off);
776 continue;
777 }
778 if (!check_strset(p, "exitall")) {
779 exitall_on_terminate = 1;
780 fgetpos(f, &off);
781 continue;
782 }
783 if (!check_strset(p, "stonewall")) {
784 td->stonewall = 1;
785 fgetpos(f, &off);
786 continue;
787 }
788 if (!check_strset(p, "thread")) {
789 td->use_thread = 1;
790 fgetpos(f, &off);
791 continue;
792 }
793
794 printf("Client%d: bad option %s\n",td->thread_number,p);
795 }
796 fsetpos(f, &off);
797
798 if (add_job(td, name, prioclass, prio))
799 return 1;
800 }
801
802 free(string);
803 free(name);
804 fclose(f);
805 return 0;
806}
807
808static int fill_def_thread(void)
809{
810 memset(&def_thread, 0, sizeof(def_thread));
811
812 if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
813 perror("sched_getaffinity");
814 return 1;
815 }
816
817 /*
818 * fill globals
819 */
820 def_thread.ddir = DDIR_READ;
821 def_thread.bs = DEF_BS;
822 def_thread.min_bs = -1;
823 def_thread.max_bs = -1;
824 def_thread.io_engine = DEF_IO_ENGINE;
825 strcpy(def_thread.io_engine_name, DEF_IO_ENGINE_NAME);
826 def_thread.odirect = DEF_ODIRECT;
827 def_thread.ratecycle = DEF_RATE_CYCLE;
828 def_thread.sequential = DEF_SEQUENTIAL;
829 def_thread.timeout = DEF_TIMEOUT;
830 def_thread.create_file = DEF_CREATE;
831 def_thread.overwrite = DEF_OVERWRITE;
832 def_thread.invalidate_cache = DEF_INVALIDATE;
833 def_thread.sync_io = DEF_SYNCIO;
834 def_thread.mem_type = MEM_MALLOC;
835 def_thread.bw_avg_time = DEF_BWAVGTIME;
836 def_thread.create_serialize = DEF_CREATE_SER;
837 def_thread.create_fsync = DEF_CREATE_FSYNC;
838 def_thread.loops = DEF_LOOPS;
839 def_thread.verify = DEF_VERIFY;
840 def_thread.stonewall = DEF_STONEWALL;
841 def_thread.numjobs = DEF_NUMJOBS;
842 def_thread.use_thread = DEF_USE_THREAD;
843#ifdef FIO_HAVE_DISK_UTIL
844 def_thread.do_disk_util = 1;
845#endif
846
847 return 0;
848}
849
850static void parse_cmd_line(int argc, char *argv[])
851{
852 int c;
853
854 while ((c = getopt(argc, argv, "s:b:t:r:R:o:f:lwv")) != EOF) {
855 switch (c) {
856 case 's':
857 def_thread.sequential = !!atoi(optarg);
858 break;
859 case 'b':
860 def_thread.bs = atoi(optarg);
861 def_thread.bs <<= 10;
862 if (!def_thread.bs) {
863 printf("bad block size\n");
864 def_thread.bs = DEF_BS;
865 }
866 break;
867 case 't':
868 def_thread.timeout = atoi(optarg);
869 break;
870 case 'r':
871 repeatable = !!atoi(optarg);
872 break;
873 case 'R':
874 rate_quit = !!atoi(optarg);
875 break;
876 case 'o':
877 def_thread.odirect = !!atoi(optarg);
878 break;
879 case 'f':
880 ini_file = strdup(optarg);
881 break;
882 case 'l':
883 write_lat_log = 1;
884 break;
885 case 'w':
886 write_bw_log = 1;
887 break;
888 case 'v':
889 printf("%s\n", fio_version_string);
890 exit(0);
891 }
892 }
893}
894
895static void free_shm(void)
896{
897 struct shmid_ds sbuf;
898
899 if (threads) {
900 shmdt(threads);
901 threads = NULL;
902 shmctl(shm_id, IPC_RMID, &sbuf);
903 }
904}
905
906static int setup_thread_area(void)
907{
908 /*
909 * 1024 is too much on some machines, scale max_jobs if
910 * we get a failure that looks like too large a shm segment
911 */
912 do {
913 int s = max_jobs * sizeof(struct thread_data);
914
915 shm_id = shmget(0, s, IPC_CREAT | 0600);
916 if (shm_id != -1)
917 break;
918 if (errno != EINVAL) {
919 perror("shmget");
920 break;
921 }
922
923 max_jobs >>= 1;
924 } while (max_jobs);
925
926 if (shm_id == -1)
927 return 1;
928
929 threads = shmat(shm_id, NULL, 0);
930 if (threads == (void *) -1) {
931 perror("shmat");
932 return 1;
933 }
934
935 atexit(free_shm);
936 return 0;
937}
938
939int parse_options(int argc, char *argv[])
940{
941 if (setup_thread_area())
942 return 1;
943 if (fill_def_thread())
944 return 1;
945
946 parse_cmd_line(argc, argv);
947
948 if (!ini_file) {
949 printf("Need job file\n");
950 return 1;
951 }
952
953 if (parse_jobs_ini(ini_file))
954 return 1;
955
956 return 0;
957}
fio - Flexible IO Tester