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[PATCH] Split config name parse functions into parse.c
[fio.git] / init.c
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1/*
2 * This file contains job initialization and setup functions.
3 */
4#include <stdio.h>
5#include <stdlib.h>
6#include <unistd.h>
7#include <fcntl.h>
8#include <ctype.h>
9#include <string.h>
10#include <errno.h>
11#include <sys/ipc.h>
12#include <sys/shm.h>
13#include <sys/types.h>
14#include <sys/stat.h>
15
16#include "fio.h"
17#include "parse.h"
18
19/*
20 * The default options
21 */
22#define DEF_BS (4096)
23#define DEF_TIMEOUT (0)
24#define DEF_RATE_CYCLE (1000)
25#define DEF_ODIRECT (1)
26#define DEF_IO_ENGINE (FIO_SYNCIO)
27#define DEF_IO_ENGINE_NAME "sync"
28#define DEF_SEQUENTIAL (1)
29#define DEF_RAND_REPEAT (1)
30#define DEF_OVERWRITE (1)
31#define DEF_INVALIDATE (1)
32#define DEF_SYNCIO (0)
33#define DEF_RANDSEED (0xb1899bedUL)
34#define DEF_BWAVGTIME (500)
35#define DEF_CREATE_SER (1)
36#define DEF_CREATE_FSYNC (1)
37#define DEF_LOOPS (1)
38#define DEF_VERIFY (0)
39#define DEF_STONEWALL (0)
40#define DEF_NUMJOBS (1)
41#define DEF_USE_THREAD (0)
42#define DEF_FILE_SIZE (1024 * 1024 * 1024UL)
43#define DEF_ZONE_SIZE (0)
44#define DEF_ZONE_SKIP (0)
45#define DEF_RWMIX_CYCLE (500)
46#define DEF_RWMIX_READ (50)
47#define DEF_NICE (0)
48#define DEF_NR_FILES (1)
49#define DEF_UNLINK (0)
50#define DEF_WRITE_BW_LOG (0)
51#define DEF_WRITE_LAT_LOG (0)
52
53static int def_timeout = DEF_TIMEOUT;
54
55static char fio_version_string[] = "fio 1.5";
56
57static char **ini_file;
58static int max_jobs = MAX_JOBS;
59
60struct thread_data def_thread;
61struct thread_data *threads = NULL;
62
63int rate_quit = 0;
64int exitall_on_terminate = 0;
65int terse_output = 0;
66unsigned long long mlock_size = 0;
67FILE *f_out = NULL;
68FILE *f_err = NULL;
69
70static int write_lat_log = DEF_WRITE_LAT_LOG;
71static int write_bw_log = DEF_WRITE_BW_LOG;
72
73/*
74 * Return a free job structure.
75 */
76static struct thread_data *get_new_job(int global, struct thread_data *parent)
77{
78 struct thread_data *td;
79
80 if (global)
81 return &def_thread;
82 if (thread_number >= max_jobs)
83 return NULL;
84
85 td = &threads[thread_number++];
86 *td = *parent;
87 td->name[0] = '\0';
88
89 td->thread_number = thread_number;
90 return td;
91}
92
93static void put_job(struct thread_data *td)
94{
95 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
96 thread_number--;
97}
98
99/*
100 * Adds a job to the list of things todo. Sanitizes the various options
101 * to make sure we don't have conflicts, and initializes various
102 * members of td.
103 */
104static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
105{
106 char *ddir_str[] = { "read", "write", "randread", "randwrite",
107 "rw", NULL, "randrw" };
108 struct stat sb;
109 int numjobs, ddir, i;
110 struct fio_file *f;
111
112#ifndef FIO_HAVE_LIBAIO
113 if (td->io_engine == FIO_LIBAIO) {
114 log_err("Linux libaio not available\n");
115 return 1;
116 }
117#endif
118#ifndef FIO_HAVE_POSIXAIO
119 if (td->io_engine == FIO_POSIXAIO) {
120 log_err("posix aio not available\n");
121 return 1;
122 }
123#endif
124
125 /*
126 * the def_thread is just for options, it's not a real job
127 */
128 if (td == &def_thread)
129 return 0;
130
131 /*
132 * Set default io engine, if none set
133 */
134 if (!td->io_ops) {
135 td->io_ops = load_ioengine(td, DEF_IO_ENGINE_NAME);
136 if (!td->io_ops) {
137 log_err("default engine %s not there?\n", DEF_IO_ENGINE_NAME);
138 return 1;
139 }
140 }
141
142 if (td->io_ops->flags & FIO_SYNCIO)
143 td->iodepth = 1;
144 else {
145 if (!td->iodepth)
146 td->iodepth = td->nr_files;
147 }
148
149 /*
150 * only really works for sequential io for now, and with 1 file
151 */
152 if (td->zone_size && !td->sequential && td->nr_files == 1)
153 td->zone_size = 0;
154
155 /*
156 * Reads can do overwrites, we always need to pre-create the file
157 */
158 if (td_read(td) || td_rw(td))
159 td->overwrite = 1;
160
161 td->filetype = FIO_TYPE_FILE;
162 if (!stat(jobname, &sb)) {
163 if (S_ISBLK(sb.st_mode))
164 td->filetype = FIO_TYPE_BD;
165 else if (S_ISCHR(sb.st_mode))
166 td->filetype = FIO_TYPE_CHAR;
167 }
168
169 if (td->odirect)
170 td->io_ops->flags |= FIO_RAWIO;
171
172 if (td->filename)
173 td->nr_uniq_files = 1;
174 else
175 td->nr_uniq_files = td->nr_files;
176
177 if (td->filetype == FIO_TYPE_FILE || td->filename) {
178 char tmp[PATH_MAX];
179 int len = 0;
180 int i;
181
182 if (td->directory && td->directory[0] != '\0')
183 sprintf(tmp, "%s/", td->directory);
184
185 td->files = malloc(sizeof(struct fio_file) * td->nr_files);
186
187 for_each_file(td, f, i) {
188 memset(f, 0, sizeof(*f));
189 f->fd = -1;
190
191 if (td->filename)
192 sprintf(tmp + len, "%s", td->filename);
193 else
194 sprintf(tmp + len, "%s.%d.%d", jobname, td->thread_number, i);
195 f->file_name = strdup(tmp);
196 }
197 } else {
198 td->nr_files = 1;
199 td->files = malloc(sizeof(struct fio_file));
200 f = &td->files[0];
201
202 memset(f, 0, sizeof(*f));
203 f->fd = -1;
204 f->file_name = strdup(jobname);
205 }
206
207 for_each_file(td, f, i) {
208 f->file_size = td->total_file_size / td->nr_files;
209 f->file_offset = td->start_offset;
210 }
211
212 fio_sem_init(&td->mutex, 0);
213
214 td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
215 td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
216 td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
217
218 if (td->min_bs == -1U)
219 td->min_bs = td->bs;
220 if (td->max_bs == -1U)
221 td->max_bs = td->bs;
222 if (td_read(td) && !td_rw(td))
223 td->verify = 0;
224
225 if (td->stonewall && td->thread_number > 1)
226 groupid++;
227
228 td->groupid = groupid;
229
230 if (setup_rate(td))
231 goto err;
232
233 if (td->write_lat_log) {
234 setup_log(&td->slat_log);
235 setup_log(&td->clat_log);
236 }
237 if (td->write_bw_log)
238 setup_log(&td->bw_log);
239
240 if (td->name[0] == '\0')
241 snprintf(td->name, sizeof(td->name)-1, "client%d", td->thread_number);
242
243 ddir = td->ddir + (!td->sequential << 1) + (td->iomix << 2);
244
245 if (!terse_output) {
246 if (!job_add_num) {
247 if (td->io_ops->flags & FIO_CPUIO)
248 fprintf(f_out, "%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->name, td->cpuload, td->cpucycle);
249 else
250 fprintf(f_out, "%s: (g=%d): rw=%s, odir=%d, bs=%d-%d, rate=%d, ioengine=%s, iodepth=%d\n", td->name, td->groupid, ddir_str[ddir], td->odirect, td->min_bs, td->max_bs, td->rate, td->io_ops->name, td->iodepth);
251 } else if (job_add_num == 1)
252 fprintf(f_out, "...\n");
253 }
254
255 /*
256 * recurse add identical jobs, clear numjobs and stonewall options
257 * as they don't apply to sub-jobs
258 */
259 numjobs = td->numjobs;
260 while (--numjobs) {
261 struct thread_data *td_new = get_new_job(0, td);
262
263 if (!td_new)
264 goto err;
265
266 td_new->numjobs = 1;
267 td_new->stonewall = 0;
268 job_add_num = numjobs - 1;
269
270 if (add_job(td_new, jobname, job_add_num))
271 goto err;
272 }
273 return 0;
274err:
275 put_job(td);
276 return -1;
277}
278
279/*
280 * Initialize the various random states we need (random io, block size ranges,
281 * read/write mix, etc).
282 */
283int init_random_state(struct thread_data *td)
284{
285 unsigned long seeds[4];
286 int fd, num_maps, blocks, i;
287 struct fio_file *f;
288
289 fd = open("/dev/urandom", O_RDONLY);
290 if (fd == -1) {
291 td_verror(td, errno);
292 return 1;
293 }
294
295 if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
296 td_verror(td, EIO);
297 close(fd);
298 return 1;
299 }
300
301 close(fd);
302
303 os_random_seed(seeds[0], &td->bsrange_state);
304 os_random_seed(seeds[1], &td->verify_state);
305 os_random_seed(seeds[2], &td->rwmix_state);
306
307 if (td->sequential)
308 return 0;
309
310 if (td->rand_repeatable)
311 seeds[3] = DEF_RANDSEED;
312
313 for_each_file(td, f, i) {
314 blocks = (f->file_size + td->min_bs - 1) / td->min_bs;
315 num_maps = blocks / BLOCKS_PER_MAP;
316 f->file_map = malloc(num_maps * sizeof(long));
317 f->num_maps = num_maps;
318 memset(f->file_map, 0, num_maps * sizeof(long));
319 }
320
321 os_random_seed(seeds[3], &td->random_state);
322 return 0;
323}
324
325static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
326{
327#ifdef FIO_HAVE_CPU_AFFINITY
328 unsigned int i;
329
330 CPU_ZERO(&cpumask);
331
332 for (i = 0; i < sizeof(int) * 8; i++) {
333 if ((1 << i) & cpu)
334 CPU_SET(i, &cpumask);
335 }
336#endif
337}
338
339static int is_empty_or_comment(char *line)
340{
341 unsigned int i;
342
343 for (i = 0; i < strlen(line); i++) {
344 if (line[i] == ';')
345 return 1;
346 if (!isspace(line[i]) && !iscntrl(line[i]))
347 return 0;
348 }
349
350 return 1;
351}
352
353static int str_rw_cb(void *data, char *mem)
354{
355 struct thread_data *td = data;
356
357 if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
358 td->ddir = DDIR_READ;
359 td->sequential = 1;
360 return 0;
361 } else if (!strncmp(mem, "randread", 8)) {
362 td->ddir = DDIR_READ;
363 td->sequential = 0;
364 return 0;
365 } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
366 td->ddir = DDIR_WRITE;
367 td->sequential = 1;
368 return 0;
369 } else if (!strncmp(mem, "randwrite", 9)) {
370 td->ddir = DDIR_WRITE;
371 td->sequential = 0;
372 return 0;
373 } else if (!strncmp(mem, "rw", 2)) {
374 td->ddir = 0;
375 td->iomix = 1;
376 td->sequential = 1;
377 return 0;
378 } else if (!strncmp(mem, "randrw", 6)) {
379 td->ddir = 0;
380 td->iomix = 1;
381 td->sequential = 0;
382 return 0;
383 }
384
385 log_err("fio: data direction: read, write, randread, randwrite, rw, randrw\n");
386 return 1;
387}
388
389static int str_verify_cb(void *data, char *mem)
390{
391 struct thread_data *td = data;
392
393 if (!strncmp(mem, "0", 1)) {
394 td->verify = VERIFY_NONE;
395 return 0;
396 } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
397 td->verify = VERIFY_MD5;
398 return 0;
399 } else if (!strncmp(mem, "crc32", 5)) {
400 td->verify = VERIFY_CRC32;
401 return 0;
402 }
403
404 log_err("fio: verify types: md5, crc32\n");
405 return 1;
406}
407
408static int str_mem_cb(void *data, char *mem)
409{
410 struct thread_data *td = data;
411
412 if (!strncmp(mem, "malloc", 6)) {
413 td->mem_type = MEM_MALLOC;
414 return 0;
415 } else if (!strncmp(mem, "shm", 3)) {
416 td->mem_type = MEM_SHM;
417 return 0;
418 } else if (!strncmp(mem, "mmap", 4)) {
419 td->mem_type = MEM_MMAP;
420 return 0;
421 }
422
423 log_err("fio: mem type: malloc, shm, mmap\n");
424 return 1;
425}
426
427static int str_ioengine_cb(void *data, char *str)
428{
429 struct thread_data *td = data;
430
431 td->io_ops = load_ioengine(td, str);
432 if (td->io_ops)
433 return 0;
434
435 log_err("fio: ioengine: { linuxaio, aio, libaio }, posixaio, sync, mmap, sgio, splice, cpu\n");
436 return 1;
437}
438
439/*
440 * This is our [ini] type file parser.
441 */
442int parse_jobs_ini(char *file, int stonewall_flag)
443{
444 unsigned int prioclass, prio, cpu, global, il;
445 unsigned long long ull;
446 unsigned long ul1, ul2;
447 struct thread_data *td;
448 char *string, *name, *tmpbuf;
449 fpos_t off;
450 FILE *f;
451 char *p;
452 int ret = 0, stonewall;
453
454 f = fopen(file, "r");
455 if (!f) {
456 perror("fopen job file");
457 return 1;
458 }
459
460 string = malloc(4096);
461 name = malloc(256);
462 tmpbuf = malloc(4096);
463
464 stonewall = stonewall_flag;
465 while ((p = fgets(string, 4096, f)) != NULL) {
466 if (ret)
467 break;
468 if (is_empty_or_comment(p))
469 continue;
470 if (sscanf(p, "[%s]", name) != 1)
471 continue;
472
473 global = !strncmp(name, "global", 6);
474
475 name[strlen(name) - 1] = '\0';
476
477 td = get_new_job(global, &def_thread);
478 if (!td) {
479 ret = 1;
480 break;
481 }
482
483 /*
484 * Seperate multiple job files by a stonewall
485 */
486 if (!global && stonewall) {
487 td->stonewall = stonewall;
488 stonewall = 0;
489 }
490
491 fgetpos(f, &off);
492 while ((p = fgets(string, 4096, f)) != NULL) {
493 if (is_empty_or_comment(p))
494 continue;
495 if (strstr(p, "["))
496 break;
497 strip_blank_front(&p);
498 strip_blank_end(p);
499
500 if (!check_int(p, "prio", &prio)) {
501#ifndef FIO_HAVE_IOPRIO
502 log_err("io priorities not available\n");
503 ret = 1;
504 break;
505#endif
506 td->ioprio |= prio;
507 fgetpos(f, &off);
508 continue;
509 }
510 if (!check_int(p, "prioclass", &prioclass)) {
511#ifndef FIO_HAVE_IOPRIO
512 log_err("io priorities not available\n");
513 ret = 1;
514 break;
515#else
516 td->ioprio |= prioclass << IOPRIO_CLASS_SHIFT;
517 fgetpos(f, &off);
518 continue;
519#endif
520 }
521 if (!check_int(p, "direct", &il)) {
522 td->odirect = il;
523 fgetpos(f, &off);
524 continue;
525 }
526 if (!check_int(p, "rand_repeatable", &il)) {
527 td->rand_repeatable = il;
528 fgetpos(f, &off);
529 continue;
530 }
531 if (!check_int(p, "rate", &td->rate)) {
532 fgetpos(f, &off);
533 continue;
534 }
535 if (!check_int(p, "ratemin", &td->ratemin)) {
536 fgetpos(f, &off);
537 continue;
538 }
539 if (!check_int(p, "ratecycle", &td->ratecycle)) {
540 fgetpos(f, &off);
541 continue;
542 }
543 if (!check_int(p, "cpuload", &td->cpuload)) {
544 fgetpos(f, &off);
545 continue;
546 }
547 if (!check_int(p, "cpuchunks", &td->cpucycle)) {
548 fgetpos(f, &off);
549 continue;
550 }
551 if (!check_int(p, "thinktime", &td->thinktime)) {
552 fgetpos(f, &off);
553 continue;
554 }
555 if (!check_int(p, "cpumask", &cpu)) {
556#ifndef FIO_HAVE_CPU_AFFINITY
557 log_err("cpu affinity not available\n");
558 ret = 1;
559 break;
560#endif
561 fill_cpu_mask(td->cpumask, cpu);
562 fgetpos(f, &off);
563 continue;
564 }
565 if (!check_int(p, "fsync", &td->fsync_blocks)) {
566 fgetpos(f, &off);
567 td->end_fsync = 1;
568 continue;
569 }
570 if (!check_int(p, "startdelay", &td->start_delay)) {
571 fgetpos(f, &off);
572 continue;
573 }
574 if (!check_str_time(p, "timeout", &ull)) {
575 td->timeout = ull;
576 fgetpos(f, &off);
577 continue;
578 }
579 if (!check_int(p, "invalidate", &il)) {
580 td->invalidate_cache = il;
581 fgetpos(f, &off);
582 continue;
583 }
584 if (!check_int(p, "iodepth", &td->iodepth)) {
585 fgetpos(f, &off);
586 continue;
587 }
588 if (!check_int(p, "sync", &il)) {
589 td->sync_io = il;
590 fgetpos(f, &off);
591 continue;
592 }
593 if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
594 fgetpos(f, &off);
595 continue;
596 }
597 if (!check_int(p, "create_serialize", &il)) {
598 td->create_serialize = il;
599 fgetpos(f, &off);
600 continue;
601 }
602 if (!check_int(p, "create_fsync", &il)) {
603 td->create_fsync = il;
604 fgetpos(f, &off);
605 continue;
606 }
607 if (!check_int(p, "end_fsync", &il)) {
608 td->end_fsync = il;
609 fgetpos(f, &off);
610 continue;
611 }
612 if (!check_int(p, "loops", &td->loops)) {
613 fgetpos(f, &off);
614 continue;
615 }
616 if (!check_int(p, "numjobs", &td->numjobs)) {
617 fgetpos(f, &off);
618 continue;
619 }
620 if (!check_int(p, "overwrite", &il)) {
621 td->overwrite = il;
622 fgetpos(f, &off);
623 continue;
624 }
625 if (!check_int(p, "rwmixcycle", &td->rwmixcycle)) {
626 fgetpos(f, &off);
627 continue;
628 }
629 if (!check_int(p, "rwmixread", &il)) {
630 if (il > 100)
631 il = 100;
632 td->rwmixread = il;
633 fgetpos(f, &off);
634 continue;
635 }
636 if (!check_int(p, "rwmixwrite", &il)) {
637 if (il > 100)
638 il = 100;
639 td->rwmixread = 100 - il;
640 fgetpos(f, &off);
641 continue;
642 }
643 if (!check_int(p, "nice", &td->nice)) {
644 fgetpos(f, &off);
645 continue;
646 }
647 if (!check_int(p, "nrfiles", &td->nr_files)) {
648 fgetpos(f, &off);
649 continue;
650 }
651 if (!check_range_bytes(p, "bsrange", &ul1, &ul2)) {
652 if (ul1 > ul2) {
653 td->max_bs = ul1;
654 td->min_bs = ul2;
655 } else {
656 td->max_bs = ul2;
657 td->min_bs = ul1;
658 }
659 fgetpos(f, &off);
660 continue;
661 }
662 if (!check_str_bytes(p, "bs", &ull)) {
663 td->bs = ull;
664 fgetpos(f, &off);
665 continue;
666 }
667 if (!check_str_bytes(p, "size", &td->total_file_size)) {
668 fgetpos(f, &off);
669 continue;
670 }
671 if (!check_str_bytes(p, "offset", &td->start_offset)) {
672 fgetpos(f, &off);
673 continue;
674 }
675 if (!check_str_bytes(p, "zonesize", &td->zone_size)) {
676 fgetpos(f, &off);
677 continue;
678 }
679 if (!check_str_bytes(p, "zoneskip", &td->zone_skip)) {
680 fgetpos(f, &off);
681 continue;
682 }
683 if (!check_str_bytes(p, "lockmem", &mlock_size)) {
684 fgetpos(f, &off);
685 continue;
686 }
687 if (!check_strstore(p, "directory", tmpbuf)) {
688 td->directory = strdup(tmpbuf);
689 fgetpos(f, &off);
690 continue;
691 }
692 if (!check_strstore(p, "filename", tmpbuf)) {
693 td->filename = strdup(tmpbuf);
694 fgetpos(f, &off);
695 continue;
696 }
697 if (!check_strstore(p, "name", tmpbuf)) {
698 snprintf(td->name, sizeof(td->name)-1, "%s%d", tmpbuf, td->thread_number);
699 fgetpos(f, &off);
700 continue;
701 }
702 if (!check_str(p, "mem", str_mem_cb, td)) {
703 fgetpos(f, &off);
704 continue;
705 }
706 if (!check_str(p, "verify", str_verify_cb, td)) {
707 fgetpos(f, &off);
708 continue;
709 }
710 if (!check_str(p, "rw", str_rw_cb, td)) {
711 fgetpos(f, &off);
712 continue;
713 }
714 if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
715 fgetpos(f, &off);
716 continue;
717 }
718 if (!check_strset(p, "exitall")) {
719 exitall_on_terminate = 1;
720 fgetpos(f, &off);
721 continue;
722 }
723 if (!check_strset(p, "stonewall")) {
724 td->stonewall = 1;
725 fgetpos(f, &off);
726 continue;
727 }
728 if (!check_strset(p, "thread")) {
729 td->use_thread = 1;
730 fgetpos(f, &off);
731 continue;
732 }
733 if (!check_strset(p, "unlink")) {
734 td->unlink = 1;
735 fgetpos(f, &off);
736 continue;
737 }
738 if (!check_strset(p, "write_bw_log")) {
739 td->write_bw_log = 1;
740 fgetpos(f, &off);
741 continue;
742 }
743 if (!check_strset(p, "write_lat_log")) {
744 td->write_lat_log = 1;
745 fgetpos(f, &off);
746 continue;
747 }
748 if (!check_strstore(p, "iolog", tmpbuf)) {
749 if (td->write_iolog) {
750 log_err("fio: read iolog overrides given write_iolog\n");
751 free(td->iolog_file);
752 td->write_iolog = 0;
753 }
754 td->iolog_file = strdup(tmpbuf);
755 td->read_iolog = 1;
756 fgetpos(f, &off);
757 continue;
758 }
759 if (!check_strstore(p, "write_iolog", tmpbuf)) {
760 if (!td->read_iolog) {
761 td->iolog_file = strdup(tmpbuf);
762 td->write_iolog = 1;
763 } else
764 log_err("fio: read iolog overrides given write_iolog\n");
765 fgetpos(f, &off);
766 continue;
767 }
768 if (!check_strstore(p, "exec_prerun", tmpbuf)) {
769 td->exec_prerun = strdup(tmpbuf);
770 fgetpos(f, &off);
771 continue;
772 }
773 if (!check_strstore(p, "exec_postrun", tmpbuf)) {
774 td->exec_postrun = strdup(tmpbuf);
775 fgetpos(f, &off);
776 continue;
777 }
778 if (!check_strstore(p, "ioscheduler", tmpbuf)) {
779#ifndef FIO_HAVE_IOSCHED_SWITCH
780 log_err("io scheduler switching not available\n");
781 ret = 1;
782 break;
783#else
784 td->ioscheduler = strdup(tmpbuf);
785 fgetpos(f, &off);
786 continue;
787#endif
788 }
789
790 /*
791 * Don't break here, continue parsing options so we
792 * dump all the bad ones. Makes trial/error fixups
793 * easier on the user.
794 */
795 printf("Client%d: bad option %s\n",td->thread_number,p);
796 ret = 1;
797 }
798
799 if (!ret) {
800 fsetpos(f, &off);
801 ret = add_job(td, name, 0);
802 }
803 if (ret)
804 break;
805 }
806
807 free(string);
808 free(name);
809 free(tmpbuf);
810 fclose(f);
811 return ret;
812}
813
814static int fill_def_thread(void)
815{
816 memset(&def_thread, 0, sizeof(def_thread));
817
818 if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
819 perror("sched_getaffinity");
820 return 1;
821 }
822
823 /*
824 * fill globals
825 */
826 def_thread.ddir = DDIR_READ;
827 def_thread.iomix = 0;
828 def_thread.bs = DEF_BS;
829 def_thread.min_bs = -1;
830 def_thread.max_bs = -1;
831 def_thread.odirect = DEF_ODIRECT;
832 def_thread.ratecycle = DEF_RATE_CYCLE;
833 def_thread.sequential = DEF_SEQUENTIAL;
834 def_thread.timeout = def_timeout;
835 def_thread.overwrite = DEF_OVERWRITE;
836 def_thread.invalidate_cache = DEF_INVALIDATE;
837 def_thread.sync_io = DEF_SYNCIO;
838 def_thread.mem_type = MEM_MALLOC;
839 def_thread.bw_avg_time = DEF_BWAVGTIME;
840 def_thread.create_serialize = DEF_CREATE_SER;
841 def_thread.create_fsync = DEF_CREATE_FSYNC;
842 def_thread.loops = DEF_LOOPS;
843 def_thread.verify = DEF_VERIFY;
844 def_thread.stonewall = DEF_STONEWALL;
845 def_thread.numjobs = DEF_NUMJOBS;
846 def_thread.use_thread = DEF_USE_THREAD;
847 def_thread.rwmixcycle = DEF_RWMIX_CYCLE;
848 def_thread.rwmixread = DEF_RWMIX_READ;
849 def_thread.nice = DEF_NICE;
850 def_thread.rand_repeatable = DEF_RAND_REPEAT;
851 def_thread.nr_files = DEF_NR_FILES;
852 def_thread.unlink = DEF_UNLINK;
853 def_thread.write_bw_log = write_bw_log;
854 def_thread.write_lat_log = write_lat_log;
855#ifdef FIO_HAVE_DISK_UTIL
856 def_thread.do_disk_util = 1;
857#endif
858
859 return 0;
860}
861
862static void usage(void)
863{
864 printf("%s\n", fio_version_string);
865 printf("\t-o Write output to file\n");
866 printf("\t-t Runtime in seconds\n");
867 printf("\t-l Generate per-job latency logs\n");
868 printf("\t-w Generate per-job bandwidth logs\n");
869 printf("\t-m Minimal (terse) output\n");
870 printf("\t-v Print version info and exit\n");
871}
872
873static int parse_cmd_line(int argc, char *argv[])
874{
875 int c, idx = 1, ini_idx = 0;
876
877 while ((c = getopt(argc, argv, "t:o:lwvhm")) != EOF) {
878 switch (c) {
879 case 't':
880 def_timeout = atoi(optarg);
881 idx = optind;
882 break;
883 case 'l':
884 write_lat_log = 1;
885 idx = optind;
886 break;
887 case 'w':
888 write_bw_log = 1;
889 idx = optind;
890 break;
891 case 'o':
892 f_out = fopen(optarg, "w+");
893 if (!f_out) {
894 perror("fopen output");
895 exit(1);
896 }
897 f_err = f_out;
898 idx = optind;
899 break;
900 case 'm':
901 terse_output = 1;
902 idx = optind;
903 break;
904 case 'h':
905 usage();
906 exit(0);
907 case 'v':
908 printf("%s\n", fio_version_string);
909 exit(0);
910 }
911 }
912
913 while (idx < argc) {
914 ini_idx++;
915 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
916 ini_file[ini_idx - 1] = strdup(argv[idx]);
917 idx++;
918 }
919
920 if (!f_out) {
921 f_out = stdout;
922 f_err = stderr;
923 }
924
925 return ini_idx;
926}
927
928static void free_shm(void)
929{
930 struct shmid_ds sbuf;
931
932 if (threads) {
933 shmdt((void *) threads);
934 threads = NULL;
935 shmctl(shm_id, IPC_RMID, &sbuf);
936 }
937}
938
939/*
940 * The thread area is shared between the main process and the job
941 * threads/processes. So setup a shared memory segment that will hold
942 * all the job info.
943 */
944static int setup_thread_area(void)
945{
946 /*
947 * 1024 is too much on some machines, scale max_jobs if
948 * we get a failure that looks like too large a shm segment
949 */
950 do {
951 size_t size = max_jobs * sizeof(struct thread_data);
952
953 shm_id = shmget(0, size, IPC_CREAT | 0600);
954 if (shm_id != -1)
955 break;
956 if (errno != EINVAL) {
957 perror("shmget");
958 break;
959 }
960
961 max_jobs >>= 1;
962 } while (max_jobs);
963
964 if (shm_id == -1)
965 return 1;
966
967 threads = shmat(shm_id, NULL, 0);
968 if (threads == (void *) -1) {
969 perror("shmat");
970 return 1;
971 }
972
973 atexit(free_shm);
974 return 0;
975}
976
977int parse_options(int argc, char *argv[])
978{
979 int job_files, i;
980
981 if (setup_thread_area())
982 return 1;
983 if (fill_def_thread())
984 return 1;
985
986 job_files = parse_cmd_line(argc, argv);
987 if (!job_files) {
988 log_err("Need job file(s)\n");
989 usage();
990 return 1;
991 }
992
993 for (i = 0; i < job_files; i++) {
994 if (fill_def_thread())
995 return 1;
996 if (parse_jobs_ini(ini_file[i], i))
997 return 1;
998 free(ini_file[i]);
999 }
1000
1001 free(ini_file);
1002 return 0;
1003}
fio - Flexible IO Tester