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[PATCH] Add full command line parameter support
[fio.git] / init.c
CommitLineData
906c8d75 1/*
cb2c86fd 2 * This file contains job initialization and setup functions.
906c8d75 3 */
ebac4655
JA		 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>
b4692828
JA		 11#include <getopt.h>
12#include <assert.h>
ebac4655
JA		 13#include <sys/ipc.h>
14#include <sys/shm.h>
15#include <sys/types.h>
16#include <sys/stat.h>
17
18#include "fio.h"
cb2c86fd 19#include "parse.h"
ebac4655 20
906c8d75
JA		 21/*
22 * The default options
23 */
20dc95c4
JA		 24#define DEF_BS (4096)
25#define DEF_TIMEOUT (0)
26#define DEF_RATE_CYCLE (1000)
27#define DEF_ODIRECT (1)
28#define DEF_IO_ENGINE (FIO_SYNCIO)
ebac4655 29#define DEF_IO_ENGINE_NAME "sync"
20dc95c4
JA		 30#define DEF_SEQUENTIAL (1)
31#define DEF_RAND_REPEAT (1)
32#define DEF_OVERWRITE (1)
20dc95c4
JA		 33#define DEF_INVALIDATE (1)
34#define DEF_SYNCIO (0)
35#define DEF_RANDSEED (0xb1899bedUL)
36#define DEF_BWAVGTIME (500)
37#define DEF_CREATE_SER (1)
ebac4655 38#define DEF_CREATE_FSYNC (1)
20dc95c4
JA		 39#define DEF_LOOPS (1)
40#define DEF_VERIFY (0)
41#define DEF_STONEWALL (0)
42#define DEF_NUMJOBS (1)
43#define DEF_USE_THREAD (0)
44#define DEF_FILE_SIZE (1024 * 1024 * 1024UL)
45#define DEF_ZONE_SIZE (0)
46#define DEF_ZONE_SKIP (0)
a6ccc7be
JA		 47#define DEF_RWMIX_CYCLE (500)
48#define DEF_RWMIX_READ (50)
b6f4d880 49#define DEF_NICE (0)
53cdc686 50#define DEF_NR_FILES (1)
f6cbb269 51#define DEF_UNLINK (0)
ec94ec56
JA		 52#define DEF_WRITE_BW_LOG (0)
53#define DEF_WRITE_LAT_LOG (0)
ebac4655 54
e1f36503
JA		 55#define td_var_offset(var) ((size_t) &((struct thread_data *)0)->var)
56
b4692828
JA		 57static int str_rw_cb(void *, const char *);
58static int str_ioengine_cb(void *, const char *);
59static int str_mem_cb(void *, const char *);
60static int str_verify_cb(void *, const char *);
e1f36503
JA		 61static int str_lockmem_cb(void *, unsigned long *);
62static int str_prio_cb(void *, unsigned int *);
63static int str_prioclass_cb(void *, unsigned int *);
64static int str_exitall_cb(void);
65static int str_cpumask_cb(void *, unsigned int *);
66
67/*
68 * Map of job/command line options
69 */
70static struct fio_option options[] = {
71 {
72 .name = "name",
73 .type = FIO_OPT_STR_STORE,
74 .off1 = td_var_offset(name),
75 },
76 {
77 .name = "directory",
78 .type = FIO_OPT_STR_STORE,
79 .off1 = td_var_offset(directory),
80 },
81 {
82 .name = "filename",
83 .type = FIO_OPT_STR_STORE,
84 .off1 = td_var_offset(filename),
85 },
86 {
87 .name = "rw",
88 .type = FIO_OPT_STR,
89 .cb = str_rw_cb,
90 },
91 {
92 .name = "ioengine",
93 .type = FIO_OPT_STR,
94 .cb = str_ioengine_cb,
95 },
96 {
97 .name = "mem",
98 .type = FIO_OPT_STR,
99 .cb = str_mem_cb,
100 },
101 {
102 .name = "verify",
103 .type = FIO_OPT_STR,
104 .cb = str_verify_cb,
105 },
106 {
107 .name = "write_iolog",
076efc7c
JA		 108 .type = FIO_OPT_STR_STORE,
109 .off1 = td_var_offset(write_iolog_file),
e1f36503
JA		 110 },
111 {
076efc7c 112 .name = "read_iolog",
e1f36503 113 .type = FIO_OPT_STR_STORE,
076efc7c 114 .off1 = td_var_offset(read_iolog_file),
e1f36503
JA		 115 },
116 {
117 .name = "exec_prerun",
118 .type = FIO_OPT_STR_STORE,
119 .off1 = td_var_offset(exec_prerun),
120 },
121 {
122 .name = "exec_postrun",
123 .type = FIO_OPT_STR_STORE,
124 .off1 = td_var_offset(exec_postrun),
125 },
126#ifdef FIO_HAVE_IOSCHED_SWITCH
127 {
128 .name = "ioscheduler",
129 .type = FIO_OPT_STR_STORE,
130 .off1 = td_var_offset(ioscheduler),
131 },
132#endif
133 {
134 .name = "size",
135 .type = FIO_OPT_STR_VAL,
136 .off1 = td_var_offset(total_file_size),
137 },
138 {
139 .name = "bs",
140 .type = FIO_OPT_STR_VAL,
141 .off1 = td_var_offset(bs),
142 },
143 {
144 .name = "offset",
145 .type = FIO_OPT_STR_VAL,
146 .off1 = td_var_offset(start_offset),
147 },
148 {
149 .name = "zonesize",
150 .type = FIO_OPT_STR_VAL,
151 .off1 = td_var_offset(zone_size),
152 },
153 {
154 .name = "zoneskip",
155 .type = FIO_OPT_STR_VAL,
156 .off1 = td_var_offset(zone_skip),
157 },
158 {
159 .name = "lockmem",
160 .type = FIO_OPT_STR_VAL,
161 .cb = str_lockmem_cb,
162 },
163 {
164 .name = "bsrange",
165 .type = FIO_OPT_RANGE,
166 .off1 = td_var_offset(min_bs),
167 .off2 = td_var_offset(max_bs),
168 },
169 {
170 .name = "nrfiles",
171 .type = FIO_OPT_INT,
172 .off1 = td_var_offset(nr_files),
173 },
174 {
175 .name = "iodepth",
176 .type = FIO_OPT_INT,
177 .off1 = td_var_offset(iodepth),
178 },
179 {
180 .name = "fsync",
181 .type = FIO_OPT_INT,
182 .off1 = td_var_offset(fsync_blocks),
183 },
184 {
185 .name = "rwmixcycle",
186 .type = FIO_OPT_INT,
187 .off1 = td_var_offset(rwmixcycle),
188 },
189 {
190 .name = "rwmixread",
191 .type = FIO_OPT_INT,
192 .off1 = td_var_offset(rwmixread),
193 .max_val= 100,
194 },
195 {
196 .name = "rwmixwrite",
197 .type = FIO_OPT_INT,
198 .off1 = td_var_offset(rwmixwrite),
199 .max_val= 100,
200 },
201 {
202 .name = "nice",
203 .type = FIO_OPT_INT,
204 .off1 = td_var_offset(nice),
205 },
206#ifdef FIO_HAVE_IOPRIO
207 {
208 .name = "prio",
209 .type = FIO_OPT_INT,
210 .cb = str_prio_cb,
211 },
212 {
213 .name = "prioclass",
214 .type = FIO_OPT_INT,
215 .cb = str_prioclass_cb,
216 },
217#endif
218 {
219 .name = "thinktime",
220 .type = FIO_OPT_INT,
221 .off1 = td_var_offset(thinktime)
222 },
223 {
224 .name = "rate",
225 .type = FIO_OPT_INT,
226 .off1 = td_var_offset(rate)
227 },
228 {
229 .name = "ratemin",
230 .type = FIO_OPT_INT,
231 .off1 = td_var_offset(ratemin)
232 },
233 {
234 .name = "ratecycle",
235 .type = FIO_OPT_INT,
236 .off1 = td_var_offset(ratecycle)
237 },
238 {
239 .name = "startdelay",
240 .type = FIO_OPT_INT,
241 .off1 = td_var_offset(start_delay)
242 },
243 {
244 .name = "timeout",
245 .type = FIO_OPT_STR_VAL_TIME,
246 .off1 = td_var_offset(timeout)
247 },
248 {
249 .name = "invalidate",
250 .type = FIO_OPT_INT,
251 .off1 = td_var_offset(invalidate_cache)
252 },
253 {
254 .name = "sync",
255 .type = FIO_OPT_INT,
256 .off1 = td_var_offset(sync_io)
257 },
258 {
259 .name = "bwavgtime",
260 .type = FIO_OPT_INT,
261 .off1 = td_var_offset(bw_avg_time)
262 },
263 {
264 .name = "create_serialize",
265 .type = FIO_OPT_INT,
266 .off1 = td_var_offset(create_serialize)
267 },
268 {
269 .name = "create_fsync",
270 .type = FIO_OPT_INT,
271 .off1 = td_var_offset(create_fsync)
272 },
273 {
274 .name = "loops",
275 .type = FIO_OPT_INT,
276 .off1 = td_var_offset(loops)
277 },
278 {
279 .name = "numjobs",
280 .type = FIO_OPT_INT,
281 .off1 = td_var_offset(numjobs)
282 },
283 {
284 .name = "cpuload",
285 .type = FIO_OPT_INT,
286 .off1 = td_var_offset(cpuload)
287 },
288 {
289 .name = "cpuchunks",
290 .type = FIO_OPT_INT,
291 .off1 = td_var_offset(cpucycle)
292 },
293 {
294 .name = "direct",
295 .type = FIO_OPT_INT,
296 .off1 = td_var_offset(odirect)
297 },
298 {
299 .name = "overwrite",
300 .type = FIO_OPT_INT,
301 .off1 = td_var_offset(overwrite)
302 },
303#ifdef FIO_HAVE_CPU_AFFINITY
304 {
305 .name = "cpumask",
306 .type = FIO_OPT_INT,
307 .cb = str_cpumask_cb,
308 },
309#endif
310 {
311 .name = "end_fsync",
312 .type = FIO_OPT_INT,
313 .off1 = td_var_offset(end_fsync)
314 },
315 {
316 .name = "unlink",
317 .type = FIO_OPT_STR_SET,
318 .off1 = td_var_offset(unlink),
319 },
320 {
321 .name = "exitall",
322 .type = FIO_OPT_STR_SET,
323 .cb = str_exitall_cb,
324 },
325 {
326 .name = "stonewall",
327 .type = FIO_OPT_STR_SET,
328 .off1 = td_var_offset(stonewall),
329 },
330 {
331 .name = "thread",
332 .type = FIO_OPT_STR_SET,
333 .off1 = td_var_offset(thread),
334 },
335 {
336 .name = "write_bw_log",
337 .type = FIO_OPT_STR_SET,
338 .off1 = td_var_offset(write_bw_log),
339 },
340 {
341 .name = "write_lat_log",
342 .type = FIO_OPT_STR_SET,
343 .off1 = td_var_offset(write_lat_log),
344 },
345 {
346 .name = NULL,
347 },
348};
349
b4692828
JA		 350#define FIO_JOB_OPTS (sizeof(options) / sizeof(struct fio_option))
351#define FIO_CMD_OPTS (16)
352#define FIO_GETOPT_JOB (0x89988998)
353
354/*
355 * Command line options. These will contain the above, plus a few
356 * extra that only pertain to fio itself and not jobs.
357 */
358static struct option long_options[FIO_JOB_OPTS + FIO_CMD_OPTS] = {
359 {
360 .name = "output",
361 .has_arg = required_argument,
362 .val = 'o',
363 },
364 {
365 .name = "timeout",
366 .has_arg = required_argument,
367 .val = 't',
368 },
369 {
370 .name = "latency-log",
371 .has_arg = required_argument,
372 .val = 'l',
373 },
374 {
375 .name = "bandwidth-log",
376 .has_arg = required_argument,
377 .val = 'b',
378 },
379 {
380 .name = "minimal",
381 .has_arg = optional_argument,
382 .val = 'm',
383 },
384 {
385 .name = "version",
386 .has_arg = no_argument,
387 .val = 'v',
388 },
389 {
390 .name = NULL,
391 },
392};
393
972cfd25 394static int def_timeout = DEF_TIMEOUT;
972cfd25 395
b4692828 396static char fio_version_string[] = "fio 1.7";
ebac4655 397
972cfd25 398static char **ini_file;
ebac4655
JA		 399static int max_jobs = MAX_JOBS;
400
401struct thread_data def_thread;
402struct thread_data *threads = NULL;
403
404int rate_quit = 0;
ebac4655 405int exitall_on_terminate = 0;
c6ae0a5b 406int terse_output = 0;
c04f7ec3 407unsigned long long mlock_size = 0;
eb8bbf48
JA		 408FILE *f_out = NULL;
409FILE *f_err = NULL;
ebac4655 410
ec94ec56
JA		 411static int write_lat_log = DEF_WRITE_LAT_LOG;
412static int write_bw_log = DEF_WRITE_BW_LOG;
413
906c8d75
JA		 414/*
415 * Return a free job structure.
416 */
ebac4655
JA		 417static struct thread_data *get_new_job(int global, struct thread_data *parent)
418{
419 struct thread_data *td;
420
421 if (global)
422 return &def_thread;
423 if (thread_number >= max_jobs)
424 return NULL;
425
426 td = &threads[thread_number++];
ddaeaa5a 427 *td = *parent;
ebac4655 428
ebac4655 429 td->thread_number = thread_number;
ebac4655
JA		 430 return td;
431}
432
433static void put_job(struct thread_data *td)
434{
435 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
436 thread_number--;
437}
438
dad915e3
JA		 439/*
440 * Lazy way of fixing up options that depend on each other. We could also
441 * define option callback handlers, but this is easier.
442 */
e1f36503
JA		 443static void fixup_options(struct thread_data *td)
444{
445 if (!td->min_bs)
446 td->min_bs = td->bs;
447 if (!td->max_bs)
448 td->max_bs = td->bs;
449
450 if (!td->rwmixread && td->rwmixwrite)
451 td->rwmixread = 100 - td->rwmixwrite;
dad915e3 452
076efc7c
JA		 453 if (td->write_iolog_file && td->read_iolog_file) {
454 log_err("fio: read iolog overrides write_iolog\n");
455 free(td->write_iolog_file);
456 td->write_iolog_file = NULL;
457 }
e1f36503
JA		 458}
459
906c8d75
JA		 460/*
461 * Adds a job to the list of things todo. Sanitizes the various options
462 * to make sure we don't have conflicts, and initializes various
463 * members of td.
464 */
75154845 465static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
ebac4655 466{
3d60d1ed
JA		 467 char *ddir_str[] = { "read", "write", "randread", "randwrite",
468 "rw", NULL, "randrw" };
ebac4655 469 struct stat sb;
53cdc686
JA		 470 int numjobs, ddir, i;
471 struct fio_file *f;
ebac4655
JA		 472
473#ifndef FIO_HAVE_LIBAIO
474 if (td->io_engine == FIO_LIBAIO) {
3b70d7e5 475 log_err("Linux libaio not available\n");
ebac4655
JA		 476 return 1;
477 }
478#endif
479#ifndef FIO_HAVE_POSIXAIO
480 if (td->io_engine == FIO_POSIXAIO) {
3b70d7e5 481 log_err("posix aio not available\n");
ebac4655
JA		 482 return 1;
483 }
484#endif
ebac4655 485
e1f36503
JA		 486 fixup_options(td);
487
ebac4655
JA		 488 /*
489 * the def_thread is just for options, it's not a real job
490 */
491 if (td == &def_thread)
492 return 0;
493
df64119d
JA		 494 /*
495 * Set default io engine, if none set
496 */
497 if (!td->io_ops) {
498 td->io_ops = load_ioengine(td, DEF_IO_ENGINE_NAME);
499 if (!td->io_ops) {
500 log_err("default engine %s not there?\n", DEF_IO_ENGINE_NAME);
501 return 1;
502 }
503 }
504
2866c82d 505 if (td->io_ops->flags & FIO_SYNCIO)
ebac4655
JA		 506 td->iodepth = 1;
507 else {
508 if (!td->iodepth)
841ddd13 509 td->iodepth = td->nr_files;
ebac4655
JA		 510 }
511
20dc95c4 512 /*
53cdc686 513 * only really works for sequential io for now, and with 1 file
20dc95c4 514 */
53cdc686 515 if (td->zone_size && !td->sequential && td->nr_files == 1)
20dc95c4
JA		 516 td->zone_size = 0;
517
9cc935a1
JA		 518 /*
519 * Reads can do overwrites, we always need to pre-create the file
520 */
521 if (td_read(td) || td_rw(td))
522 td->overwrite = 1;
523
ebac4655 524 td->filetype = FIO_TYPE_FILE;
0af7b542
JA		 525 if (!stat(jobname, &sb)) {
526 if (S_ISBLK(sb.st_mode))
527 td->filetype = FIO_TYPE_BD;
528 else if (S_ISCHR(sb.st_mode))
529 td->filetype = FIO_TYPE_CHAR;
530 }
ebac4655 531
b2a15192
JA		 532 if (td->odirect)
533 td->io_ops->flags |= FIO_RAWIO;
534
13f8e2d2
JA		 535 if (td->filename)
536 td->nr_uniq_files = 1;
537 else
538 td->nr_uniq_files = td->nr_files;
539
540 if (td->filetype == FIO_TYPE_FILE || td->filename) {
e9c047a0 541 char tmp[PATH_MAX];
53cdc686
JA		 542 int len = 0;
543 int i;
e9c047a0 544
ef899b63 545 if (td->directory && td->directory[0] != '\0')
53cdc686 546 sprintf(tmp, "%s/", td->directory);
ebac4655 547
53cdc686
JA		 548 td->files = malloc(sizeof(struct fio_file) * td->nr_files);
549
550 for_each_file(td, f, i) {
551 memset(f, 0, sizeof(*f));
552 f->fd = -1;
553
13f8e2d2
JA		 554 if (td->filename)
555 sprintf(tmp + len, "%s", td->filename);
556 else
557 sprintf(tmp + len, "%s.%d.%d", jobname, td->thread_number, i);
53cdc686
JA		 558 f->file_name = strdup(tmp);
559 }
560 } else {
561 td->nr_files = 1;
562 td->files = malloc(sizeof(struct fio_file));
563 f = &td->files[0];
564
565 memset(f, 0, sizeof(*f));
566 f->fd = -1;
567 f->file_name = strdup(jobname);
568 }
569
570 for_each_file(td, f, i) {
571 f->file_size = td->total_file_size / td->nr_files;
572 f->file_offset = td->start_offset;
573 }
574
bbfd6b00 575 fio_sem_init(&td->mutex, 0);
ebac4655
JA		 576
577 td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
578 td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
579 td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
580
581 if (td->min_bs == -1U)
582 td->min_bs = td->bs;
583 if (td->max_bs == -1U)
584 td->max_bs = td->bs;
3d60d1ed 585 if (td_read(td) && !td_rw(td))
ebac4655
JA		 586 td->verify = 0;
587
588 if (td->stonewall && td->thread_number > 1)
589 groupid++;
590
591 td->groupid = groupid;
592
593 if (setup_rate(td))
594 goto err;
595
ec94ec56 596 if (td->write_lat_log) {
ebac4655
JA		 597 setup_log(&td->slat_log);
598 setup_log(&td->clat_log);
599 }
ec94ec56 600 if (td->write_bw_log)
ebac4655
JA		 601 setup_log(&td->bw_log);
602
b4692828
JA		 603 if (!td->name)
604 td->name = strdup(jobname);
01452055 605
3d60d1ed 606 ddir = td->ddir + (!td->sequential << 1) + (td->iomix << 2);
75154845 607
c6ae0a5b 608 if (!terse_output) {
b990b5c0 609 if (!job_add_num) {
2866c82d 610 if (td->io_ops->flags & FIO_CPUIO)
b990b5c0
JA		 611 fprintf(f_out, "%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->name, td->cpuload, td->cpucycle);
612 else
2866c82d 613 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);
b990b5c0 614 } else if (job_add_num == 1)
c6ae0a5b
JA		 615 fprintf(f_out, "...\n");
616 }
ebac4655
JA		 617
618 /*
619 * recurse add identical jobs, clear numjobs and stonewall options
620 * as they don't apply to sub-jobs
621 */
622 numjobs = td->numjobs;
623 while (--numjobs) {
624 struct thread_data *td_new = get_new_job(0, td);
625
626 if (!td_new)
627 goto err;
628
629 td_new->numjobs = 1;
630 td_new->stonewall = 0;
75154845 631 job_add_num = numjobs - 1;
ebac4655 632
75154845 633 if (add_job(td_new, jobname, job_add_num))
ebac4655
JA		 634 goto err;
635 }
636 return 0;
637err:
638 put_job(td);
639 return -1;
640}
641
906c8d75
JA		 642/*
643 * Initialize the various random states we need (random io, block size ranges,
644 * read/write mix, etc).
645 */
ebac4655
JA		 646int init_random_state(struct thread_data *td)
647{
a6ccc7be 648 unsigned long seeds[4];
53cdc686 649 int fd, num_maps, blocks, i;
0ab8db89 650 struct fio_file *f;
ebac4655 651
f48b467c
JA		 652 if (td->io_ops->flags & FIO_CPUIO)
653 return 0;
654
1ac267bb 655 fd = open("/dev/urandom", O_RDONLY);
ebac4655
JA		 656 if (fd == -1) {
657 td_verror(td, errno);
658 return 1;
659 }
660
a6ccc7be 661 if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
ebac4655
JA		 662 td_verror(td, EIO);
663 close(fd);
664 return 1;
665 }
666
667 close(fd);
668
6dfd46b9
JA		 669 os_random_seed(seeds[0], &td->bsrange_state);
670 os_random_seed(seeds[1], &td->verify_state);
671 os_random_seed(seeds[2], &td->rwmix_state);
ebac4655
JA		 672
673 if (td->sequential)
674 return 0;
675
9ebc27e1 676 if (td->rand_repeatable)
a6ccc7be 677 seeds[3] = DEF_RANDSEED;
ebac4655 678
0ab8db89 679 for_each_file(td, f, i) {
53cdc686
JA		 680 blocks = (f->file_size + td->min_bs - 1) / td->min_bs;
681 num_maps = blocks / BLOCKS_PER_MAP;
682 f->file_map = malloc(num_maps * sizeof(long));
683 f->num_maps = num_maps;
684 memset(f->file_map, 0, num_maps * sizeof(long));
685 }
ebac4655 686
6dfd46b9 687 os_random_seed(seeds[3], &td->random_state);
ebac4655
JA		 688 return 0;
689}
690
691static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
692{
693#ifdef FIO_HAVE_CPU_AFFINITY
694 unsigned int i;
695
696 CPU_ZERO(&cpumask);
697
698 for (i = 0; i < sizeof(int) * 8; i++) {
699 if ((1 << i) & cpu)
700 CPU_SET(i, &cpumask);
701 }
702#endif
703}
704
ebac4655
JA		 705static int is_empty_or_comment(char *line)
706{
707 unsigned int i;
708
709 for (i = 0; i < strlen(line); i++) {
710 if (line[i] == ';')
711 return 1;
712 if (!isspace(line[i]) && !iscntrl(line[i]))
713 return 0;
714 }
715
716 return 1;
717}
718
b4692828 719static int str_rw_cb(void *data, const char *mem)
ebac4655 720{
cb2c86fd
JA		 721 struct thread_data *td = data;
722
ebac4655
JA		 723 if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
724 td->ddir = DDIR_READ;
725 td->sequential = 1;
726 return 0;
727 } else if (!strncmp(mem, "randread", 8)) {
728 td->ddir = DDIR_READ;
729 td->sequential = 0;
730 return 0;
731 } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
732 td->ddir = DDIR_WRITE;
733 td->sequential = 1;
734 return 0;
735 } else if (!strncmp(mem, "randwrite", 9)) {
736 td->ddir = DDIR_WRITE;
737 td->sequential = 0;
738 return 0;
3d60d1ed
JA		 739 } else if (!strncmp(mem, "rw", 2)) {
740 td->ddir = 0;
741 td->iomix = 1;
742 td->sequential = 1;
743 return 0;
744 } else if (!strncmp(mem, "randrw", 6)) {
745 td->ddir = 0;
746 td->iomix = 1;
747 td->sequential = 0;
748 return 0;
ebac4655
JA		 749 }
750
3b70d7e5 751 log_err("fio: data direction: read, write, randread, randwrite, rw, randrw\n");
ebac4655
JA		 752 return 1;
753}
754
b4692828 755static int str_verify_cb(void *data, const char *mem)
ebac4655 756{
cb2c86fd
JA		 757 struct thread_data *td = data;
758
ebac4655
JA		 759 if (!strncmp(mem, "0", 1)) {
760 td->verify = VERIFY_NONE;
761 return 0;
762 } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
763 td->verify = VERIFY_MD5;
764 return 0;
765 } else if (!strncmp(mem, "crc32", 5)) {
766 td->verify = VERIFY_CRC32;
767 return 0;
768 }
769
3b70d7e5 770 log_err("fio: verify types: md5, crc32\n");
ebac4655
JA		 771 return 1;
772}
773
b4692828 774static int str_mem_cb(void *data, const char *mem)
ebac4655 775{
cb2c86fd
JA		 776 struct thread_data *td = data;
777
ebac4655
JA		 778 if (!strncmp(mem, "malloc", 6)) {
779 td->mem_type = MEM_MALLOC;
780 return 0;
781 } else if (!strncmp(mem, "shm", 3)) {
782 td->mem_type = MEM_SHM;
783 return 0;
784 } else if (!strncmp(mem, "mmap", 4)) {
785 td->mem_type = MEM_MMAP;
786 return 0;
787 }
788
3b70d7e5 789 log_err("fio: mem type: malloc, shm, mmap\n");
ebac4655
JA		 790 return 1;
791}
792
b4692828 793static int str_ioengine_cb(void *data, const char *str)
ebac4655 794{
cb2c86fd
JA		 795 struct thread_data *td = data;
796
2866c82d
JA		 797 td->io_ops = load_ioengine(td, str);
798 if (td->io_ops)
b990b5c0 799 return 0;
ebac4655 800
b990b5c0 801 log_err("fio: ioengine: { linuxaio, aio, libaio }, posixaio, sync, mmap, sgio, splice, cpu\n");
ebac4655
JA		 802 return 1;
803}
804
e1f36503
JA		 805static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
806{
807 mlock_size = *val;
808 return 0;
809}
810
811static int str_prioclass_cb(void *data, unsigned int *val)
812{
813 struct thread_data *td = data;
814
815 td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
816 return 0;
817}
818
819static int str_prio_cb(void *data, unsigned int *val)
820{
821 struct thread_data *td = data;
822
823 td->ioprio |= *val;
824 return 0;
825}
826
827static int str_exitall_cb(void)
828{
829 exitall_on_terminate = 1;
830 return 0;
831}
832
833static int str_cpumask_cb(void *data, unsigned int *val)
834{
835 struct thread_data *td = data;
836
837 fill_cpu_mask(td->cpumask, *val);
838 return 0;
839}
840
07261983
JA		 841/*
842 * This is our [ini] type file parser.
843 */
0c7e37a0 844int parse_jobs_ini(char *file, int stonewall_flag)
ebac4655 845{
e1f36503 846 unsigned int global;
ebac4655 847 struct thread_data *td;
ef899b63 848 char *string, *name, *tmpbuf;
ebac4655
JA		 849 fpos_t off;
850 FILE *f;
851 char *p;
0c7e37a0 852 int ret = 0, stonewall;
ebac4655
JA		 853
854 f = fopen(file, "r");
855 if (!f) {
aea47d44 856 perror("fopen job file");
ebac4655
JA		 857 return 1;
858 }
859
860 string = malloc(4096);
861 name = malloc(256);
ef899b63 862 tmpbuf = malloc(4096);
ebac4655 863
0c7e37a0 864 stonewall = stonewall_flag;
ebac4655 865 while ((p = fgets(string, 4096, f)) != NULL) {
45410acb
JA		 866 if (ret)
867 break;
ebac4655
JA		 868 if (is_empty_or_comment(p))
869 continue;
870 if (sscanf(p, "[%s]", name) != 1)
871 continue;
872
873 global = !strncmp(name, "global", 6);
874
875 name[strlen(name) - 1] = '\0';
876
877 td = get_new_job(global, &def_thread);
45410acb
JA		 878 if (!td) {
879 ret = 1;
880 break;
881 }
ebac4655 882
972cfd25
JA		 883 /*
884 * Seperate multiple job files by a stonewall
885 */
f9481919 886 if (!global && stonewall) {
972cfd25
JA		 887 td->stonewall = stonewall;
888 stonewall = 0;
889 }
890
ebac4655
JA		 891 fgetpos(f, &off);
892 while ((p = fgets(string, 4096, f)) != NULL) {
893 if (is_empty_or_comment(p))
894 continue;
895 if (strstr(p, "["))
896 break;
e1f36503 897
b6754f9d 898 strip_blank_front(&p);
4ae3f763 899 strip_blank_end(p);
aea47d44 900
e1f36503 901 fgetpos(f, &off);
ebac4655 902
45410acb
JA		 903 /*
904 * Don't break here, continue parsing options so we
905 * dump all the bad ones. Makes trial/error fixups
906 * easier on the user.
907 */
e1f36503 908 ret = parse_option(p, options, td);
ebac4655 909 }
ebac4655 910
45410acb
JA		 911 if (!ret) {
912 fsetpos(f, &off);
913 ret = add_job(td, name, 0);
914 }
915 if (ret)
916 break;
ebac4655
JA		 917 }
918
919 free(string);
920 free(name);
ef899b63 921 free(tmpbuf);
ebac4655 922 fclose(f);
45410acb 923 return ret;
ebac4655
JA		 924}
925
926static int fill_def_thread(void)
927{
928 memset(&def_thread, 0, sizeof(def_thread));
929
930 if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
931 perror("sched_getaffinity");
932 return 1;
933 }
934
935 /*
936 * fill globals
937 */
938 def_thread.ddir = DDIR_READ;
3d60d1ed 939 def_thread.iomix = 0;
9ebc27e1 940 def_thread.bs = DEF_BS;
ebac4655
JA		 941 def_thread.min_bs = -1;
942 def_thread.max_bs = -1;
9ebc27e1 943 def_thread.odirect = DEF_ODIRECT;
ebac4655 944 def_thread.ratecycle = DEF_RATE_CYCLE;
9ebc27e1 945 def_thread.sequential = DEF_SEQUENTIAL;
972cfd25 946 def_thread.timeout = def_timeout;
ebac4655
JA		 947 def_thread.overwrite = DEF_OVERWRITE;
948 def_thread.invalidate_cache = DEF_INVALIDATE;
949 def_thread.sync_io = DEF_SYNCIO;
950 def_thread.mem_type = MEM_MALLOC;
951 def_thread.bw_avg_time = DEF_BWAVGTIME;
952 def_thread.create_serialize = DEF_CREATE_SER;
953 def_thread.create_fsync = DEF_CREATE_FSYNC;
954 def_thread.loops = DEF_LOOPS;
955 def_thread.verify = DEF_VERIFY;
956 def_thread.stonewall = DEF_STONEWALL;
957 def_thread.numjobs = DEF_NUMJOBS;
958 def_thread.use_thread = DEF_USE_THREAD;
a6ccc7be
JA		 959 def_thread.rwmixcycle = DEF_RWMIX_CYCLE;
960 def_thread.rwmixread = DEF_RWMIX_READ;
b6f4d880 961 def_thread.nice = DEF_NICE;
9ebc27e1 962 def_thread.rand_repeatable = DEF_RAND_REPEAT;
53cdc686 963 def_thread.nr_files = DEF_NR_FILES;
f6cbb269 964 def_thread.unlink = DEF_UNLINK;
ec94ec56
JA		 965 def_thread.write_bw_log = write_bw_log;
966 def_thread.write_lat_log = write_lat_log;
ebac4655
JA		 967#ifdef FIO_HAVE_DISK_UTIL
968 def_thread.do_disk_util = 1;
969#endif
970
971 return 0;
972}
973
0ab8db89 974static void usage(void)
4785f995
JA		 975{
976 printf("%s\n", fio_version_string);
b4692828
JA		 977 printf("\t--output\tWrite output to file\n");
978 printf("\t--timeout\tRuntime in seconds\n");
979 printf("\t--latency-log\tGenerate per-job latency logs\n");
980 printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
981 printf("\t--minimal\tMinimal (terse) output\n");
982 printf("\t--version\tPrint version info and exit\n");
4785f995
JA		 983}
984
972cfd25 985static int parse_cmd_line(int argc, char *argv[])
ebac4655 986{
b4692828
JA		 987 struct thread_data *td = NULL;
988 int c, ini_idx = 0, lidx;
ebac4655 989
b4692828 990 while ((c = getopt_long(argc, argv, "", long_options, &lidx)) != -1) {
ebac4655 991 switch (c) {
b4692828
JA		 992 case 't':
993 def_timeout = atoi(optarg);
994 break;
995 case 'l':
996 write_lat_log = 1;
997 break;
998 case 'w':
999 write_bw_log = 1;
1000 break;
1001 case 'o':
1002 f_out = fopen(optarg, "w+");
1003 if (!f_out) {
1004 perror("fopen output");
1005 exit(1);
1006 }
1007 f_err = f_out;
1008 break;
1009 case 'm':
1010 terse_output = 1;
1011 break;
1012 case 'h':
1013 usage();
1014 exit(0);
1015 case 'v':
1016 printf("%s\n", fio_version_string);
1017 exit(0);
1018 case FIO_GETOPT_JOB: {
1019 const char *opt = long_options[lidx].name;
1020 char *val = optarg;
1021
1022 if (!td) {
1023 td = get_new_job(0, &def_thread);
1024 if (!td)
1025 return 0;
1026 }
1027 if (parse_cmd_option(opt, val, options, td))
1028 printf("foo\n");
1029 break;
1030 }
1031 default:
1032 printf("optarg <<%s>>\n", argv[optind]);
1033 break;
ebac4655
JA		 1034 }
1035 }
c9fad893 1036
b4692828
JA		 1037 if (td) {
1038 const char *name = td->name;
1039 int ret;
1040
1041 if (!name)
1042 name = "fio";
1043
1044 ret = add_job(td, name, 0);
1045 if (ret)
1046 put_job(td);
972cfd25 1047 }
774a6177 1048
b4692828
JA		 1049 while (optind < argc) {
1050 ini_idx++;
1051 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1052 ini_file[ini_idx - 1] = strdup(argv[optind]);
1053 optind++;
eb8bbf48 1054 }
972cfd25
JA		 1055
1056 return ini_idx;
ebac4655
JA		 1057}
1058
1059static void free_shm(void)
1060{
1061 struct shmid_ds sbuf;
1062
1063 if (threads) {
2c0ecd28 1064 shmdt((void *) threads);
ebac4655
JA		 1065 threads = NULL;
1066 shmctl(shm_id, IPC_RMID, &sbuf);
1067 }
1068}
1069
906c8d75
JA		 1070/*
1071 * The thread area is shared between the main process and the job
1072 * threads/processes. So setup a shared memory segment that will hold
1073 * all the job info.
1074 */
ebac4655
JA		 1075static int setup_thread_area(void)
1076{
1077 /*
1078 * 1024 is too much on some machines, scale max_jobs if
1079 * we get a failure that looks like too large a shm segment
1080 */
1081 do {
906c8d75 1082 size_t size = max_jobs * sizeof(struct thread_data);
ebac4655 1083
906c8d75 1084 shm_id = shmget(0, size, IPC_CREAT | 0600);
ebac4655
JA		 1085 if (shm_id != -1)
1086 break;
1087 if (errno != EINVAL) {
1088 perror("shmget");
1089 break;
1090 }
1091
1092 max_jobs >>= 1;
1093 } while (max_jobs);
1094
1095 if (shm_id == -1)
1096 return 1;
1097
1098 threads = shmat(shm_id, NULL, 0);
1099 if (threads == (void *) -1) {
1100 perror("shmat");
1101 return 1;
1102 }
1103
1104 atexit(free_shm);
1105 return 0;
1106}
1107
b4692828
JA		 1108/*
1109 * Copy the fio options into the long options map, so we mirror
1110 * job and cmd line options.
1111 */
1112static void dupe_job_options(void)
1113{
1114 struct fio_option *o;
1115 unsigned int i;
1116
1117 i = 0;
1118 while (long_options[i].name)
1119 i++;
1120
1121 o = &options[0];
1122 while (o->name) {
1123 long_options[i].name = o->name;
1124 long_options[i].val = FIO_GETOPT_JOB;
1125 if (o->type == FIO_OPT_STR_SET)
1126 long_options[i].has_arg = no_argument;
1127 else
1128 long_options[i].has_arg = required_argument;
1129
1130 i++;
1131 o++;
1132 assert(i < FIO_JOB_OPTS + FIO_CMD_OPTS);
1133 }
1134}
1135
ebac4655
JA		 1136int parse_options(int argc, char *argv[])
1137{
972cfd25
JA		 1138 int job_files, i;
1139
b4692828
JA		 1140 f_out = stdout;
1141 f_err = stderr;
1142
1143 dupe_job_options();
1144
ebac4655
JA		 1145 if (setup_thread_area())
1146 return 1;
1147 if (fill_def_thread())
1148 return 1;
1149
972cfd25 1150 job_files = parse_cmd_line(argc, argv);
ebac4655 1151
972cfd25
JA		 1152 for (i = 0; i < job_files; i++) {
1153 if (fill_def_thread())
1154 return 1;
0c7e37a0 1155 if (parse_jobs_ini(ini_file[i], i))
972cfd25 1156 return 1;
88c6ed80 1157 free(ini_file[i]);
972cfd25 1158 }
ebac4655 1159
88c6ed80 1160 free(ini_file);
b4692828
JA		 1161
1162 if (!thread_number) {
1163 log_err("No jobs defined(s)\n");
1164 usage();
1165 return 1;
1166 }
1167
ebac4655
JA		 1168 return 0;
1169}
fio - Flexible IO Tester