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Properly initialize md5 hash seed
[fio.git] / options.c
CommitLineData
214e1eca
JA		 1#include <stdio.h>
2#include <stdlib.h>
3#include <unistd.h>
4#include <ctype.h>
5#include <string.h>
6#include <getopt.h>
7#include <assert.h>
8
9#include "fio.h"
10#include "parse.h"
90059d65 11#include "fls.h"
214e1eca 12
2dc1bbeb 13#define td_var_offset(var) ((size_t) &((struct thread_options *)0)->var)
214e1eca
JA		 14
15/*
16 * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
17 */
18static char *get_opt_postfix(const char *str)
19{
20 char *p = strstr(str, ":");
21
22 if (!p)
23 return NULL;
24
25 p++;
26 strip_blank_front(&p);
27 strip_blank_end(p);
28 return strdup(p);
29}
30
211097b2
JA		 31static int str_rw_cb(void *data, const char *str)
32{
33 struct thread_data *td = data;
34 char *nr = get_opt_postfix(str);
35
fafdba3c 36 td->o.ddir_nr = 1;
211097b2
JA		 37 if (nr)
38 td->o.ddir_nr = atoi(nr);
39
211097b2
JA		 40 return 0;
41}
42
214e1eca
JA		 43static int str_mem_cb(void *data, const char *mem)
44{
45 struct thread_data *td = data;
46
2dc1bbeb 47 if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP) {
214e1eca 48 td->mmapfile = get_opt_postfix(mem);
2dc1bbeb 49 if (td->o.mem_type == MEM_MMAPHUGE && !td->mmapfile) {
214e1eca
JA		 50 log_err("fio: mmaphuge:/path/to/file\n");
51 return 1;
52 }
53 }
54
55 return 0;
56}
57
58static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
59{
60 mlock_size = *val;
61 return 0;
62}
63
64#ifdef FIO_HAVE_IOPRIO
65static int str_prioclass_cb(void *data, unsigned int *val)
66{
67 struct thread_data *td = data;
6cefbe33
JA		 68 unsigned short mask;
69
70 /*
71 * mask off old class bits, str_prio_cb() may have set a default class
72 */
73 mask = (1 << IOPRIO_CLASS_SHIFT) - 1;
74 td->ioprio &= mask;
214e1eca
JA		 75
76 td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
77 return 0;
78}
79
80static int str_prio_cb(void *data, unsigned int *val)
81{
82 struct thread_data *td = data;
83
84 td->ioprio |= *val;
6cefbe33
JA		 85
86 /*
87 * If no class is set, assume BE
88 */
89 if ((td->ioprio >> IOPRIO_CLASS_SHIFT) == 0)
90 td->ioprio |= IOPRIO_CLASS_BE << IOPRIO_CLASS_SHIFT;
91
214e1eca
JA		 92 return 0;
93}
94#endif
95
96static int str_exitall_cb(void)
97{
98 exitall_on_terminate = 1;
99 return 0;
100}
101
214e1eca 102#ifdef FIO_HAVE_CPU_AFFINITY
d2e268b0
JA		 103static int str_cpumask_cb(void *data, unsigned int *val)
104{
105 struct thread_data *td = data;
214e1eca
JA		 106 unsigned int i;
107
d2e268b0 108 CPU_ZERO(&td->o.cpumask);
214e1eca 109
e600f7f1 110 for (i = 0; i < sizeof(int) * 8; i++)
d2e268b0
JA		 111 if ((1 << i) & *val)
112 CPU_SET(*val, &td->o.cpumask);
113
114 td->o.cpumask_set = 1;
115 return 0;
214e1eca
JA		 116}
117
d2e268b0 118static int str_cpus_allowed_cb(void *data, const char *input)
214e1eca
JA		 119{
120 struct thread_data *td = data;
d2e268b0
JA		 121 char *cpu, *str, *p;
122
123 CPU_ZERO(&td->o.cpumask);
124
125 p = str = strdup(input);
214e1eca 126
d2e268b0
JA		 127 strip_blank_front(&str);
128 strip_blank_end(str);
129
130 while ((cpu = strsep(&str, ",")) != NULL) {
131 if (!strlen(cpu))
132 break;
133 CPU_SET(atoi(cpu), &td->o.cpumask);
134 }
135
136 free(p);
375b2695 137 td->o.cpumask_set = 1;
d2e268b0 138 exit(0);
214e1eca
JA		 139 return 0;
140}
d2e268b0 141#endif
214e1eca
JA		 142
143static int str_fst_cb(void *data, const char *str)
144{
145 struct thread_data *td = data;
146 char *nr = get_opt_postfix(str);
147
148 td->file_service_nr = 1;
149 if (nr)
150 td->file_service_nr = atoi(nr);
151
152 return 0;
153}
154
155static int str_filename_cb(void *data, const char *input)
156{
157 struct thread_data *td = data;
158 char *fname, *str, *p;
159
160 p = str = strdup(input);
161
162 strip_blank_front(&str);
163 strip_blank_end(str);
164
165 if (!td->files_index)
2dc1bbeb 166 td->o.nr_files = 0;
214e1eca
JA		 167
168 while ((fname = strsep(&str, ":")) != NULL) {
169 if (!strlen(fname))
170 break;
171 add_file(td, fname);
2dc1bbeb 172 td->o.nr_files++;
214e1eca
JA		 173 }
174
175 free(p);
176 return 0;
177}
178
179static int str_directory_cb(void *data, const char fio_unused *str)
180{
181 struct thread_data *td = data;
182 struct stat sb;
183
2dc1bbeb
JA		 184 if (lstat(td->o.directory, &sb) < 0) {
185 log_err("fio: %s is not a directory\n", td->o.directory);
214e1eca
JA		 186 td_verror(td, errno, "lstat");
187 return 1;
188 }
189 if (!S_ISDIR(sb.st_mode)) {
2dc1bbeb 190 log_err("fio: %s is not a directory\n", td->o.directory);
214e1eca
JA		 191 return 1;
192 }
193
194 return 0;
195}
196
197static int str_opendir_cb(void *data, const char fio_unused *str)
198{
199 struct thread_data *td = data;
200
201 if (!td->files_index)
2dc1bbeb 202 td->o.nr_files = 0;
214e1eca 203
2dc1bbeb 204 return add_dir_files(td, td->o.opendir);
214e1eca
JA		 205}
206
a59e170d 207static int str_verify_offset_cb(void *data, unsigned int *off)
546a9142
SL		 208{
209 struct thread_data *td = data;
a59e170d 210
546a9142 211 if (*off && *off < sizeof(struct verify_header)) {
a59e170d 212 log_err("fio: verify_offset too small\n");
546a9142
SL		 213 return 1;
214 }
a59e170d
JA		 215
216 td->o.verify_offset = *off;
546a9142
SL		 217 return 0;
218}
219
90059d65
JA		 220static int str_verify_pattern_cb(void *data, unsigned int *off)
221{
222 struct thread_data *td = data;
223 unsigned int msb;
224
225 msb = fls(*off);
226 if (msb <= 8)
227 td->o.verify_pattern_bytes = 1;
228 else if (msb <= 16)
229 td->o.verify_pattern_bytes = 2;
230 else if (msb <= 24)
231 td->o.verify_pattern_bytes = 3;
232 else
233 td->o.verify_pattern_bytes = 4;
234
235 td->o.verify_pattern = *off;
236 return 0;
237}
214e1eca
JA		 238
239#define __stringify_1(x) #x
240#define __stringify(x) __stringify_1(x)
241
242/*
243 * Map of job/command line options
244 */
245static struct fio_option options[] = {
246 {
247 .name = "description",
248 .type = FIO_OPT_STR_STORE,
249 .off1 = td_var_offset(description),
250 .help = "Text job description",
251 },
252 {
253 .name = "name",
254 .type = FIO_OPT_STR_STORE,
255 .off1 = td_var_offset(name),
256 .help = "Name of this job",
257 },
258 {
259 .name = "directory",
260 .type = FIO_OPT_STR_STORE,
261 .off1 = td_var_offset(directory),
262 .cb = str_directory_cb,
263 .help = "Directory to store files in",
264 },
265 {
266 .name = "filename",
267 .type = FIO_OPT_STR_STORE,
268 .off1 = td_var_offset(filename),
269 .cb = str_filename_cb,
270 .help = "File(s) to use for the workload",
271 },
272 {
273 .name = "opendir",
274 .type = FIO_OPT_STR_STORE,
275 .off1 = td_var_offset(opendir),
276 .cb = str_opendir_cb,
277 .help = "Recursively add files from this directory and down",
278 },
279 {
280 .name = "rw",
d3aad8f2 281 .alias = "readwrite",
214e1eca 282 .type = FIO_OPT_STR,
211097b2 283 .cb = str_rw_cb,
214e1eca
JA		 284 .off1 = td_var_offset(td_ddir),
285 .help = "IO direction",
286 .def = "read",
287 .posval = {
288 { .ival = "read",
289 .oval = TD_DDIR_READ,
290 .help = "Sequential read",
291 },
292 { .ival = "write",
293 .oval = TD_DDIR_WRITE,
294 .help = "Sequential write",
295 },
296 { .ival = "randread",
297 .oval = TD_DDIR_RANDREAD,
298 .help = "Random read",
299 },
300 { .ival = "randwrite",
301 .oval = TD_DDIR_RANDWRITE,
302 .help = "Random write",
303 },
304 { .ival = "rw",
305 .oval = TD_DDIR_RW,
306 .help = "Sequential read and write mix",
307 },
308 { .ival = "randrw",
309 .oval = TD_DDIR_RANDRW,
310 .help = "Random read and write mix"
311 },
312 },
313 },
d2f3ac35
JA		 314 {
315 .name = "fadvise_hint",
316 .type = FIO_OPT_BOOL,
317 .off1 = td_var_offset(fadvise_hint),
318 .help = "Use fadvise() to advise the kernel on IO pattern",
319 .def = "1",
320 },
214e1eca
JA		 321 {
322 .name = "ioengine",
323 .type = FIO_OPT_STR_STORE,
324 .off1 = td_var_offset(ioengine),
325 .help = "IO engine to use",
326 .def = "sync",
327 .posval = {
328 { .ival = "sync",
329 .help = "Use read/write",
330 },
331#ifdef FIO_HAVE_LIBAIO
332 { .ival = "libaio",
333 .help = "Linux native asynchronous IO",
334 },
335#endif
336#ifdef FIO_HAVE_POSIXAIO
337 { .ival = "posixaio",
338 .help = "POSIX asynchronous IO",
339 },
340#endif
341 { .ival = "mmap",
342 .help = "Memory mapped IO",
343 },
344#ifdef FIO_HAVE_SPLICE
345 { .ival = "splice",
346 .help = "splice/vmsplice based IO",
347 },
9cce02e8
JA		 348 { .ival = "netsplice",
349 .help = "splice/vmsplice to/from the network",
350 },
214e1eca
JA		 351#endif
352#ifdef FIO_HAVE_SGIO
353 { .ival = "sg",
354 .help = "SCSI generic v3 IO",
355 },
356#endif
357 { .ival = "null",
358 .help = "Testing engine (no data transfer)",
359 },
360 { .ival = "net",
361 .help = "Network IO",
362 },
363#ifdef FIO_HAVE_SYSLET
364 { .ival = "syslet-rw",
365 .help = "syslet enabled async pread/pwrite IO",
366 },
367#endif
368 { .ival = "cpuio",
369 .help = "CPU cycler burner engine",
370 },
b8c82a46
JA		 371#ifdef FIO_HAVE_GUASI
372 { .ival = "guasi",
373 .help = "GUASI IO engine",
374 },
375#endif
214e1eca
JA		 376 { .ival = "external",
377 .help = "Load external engine (append name)",
378 },
379 },
380 },
381 {
382 .name = "iodepth",
383 .type = FIO_OPT_INT,
384 .off1 = td_var_offset(iodepth),
385 .help = "Amount of IO buffers to keep in flight",
386 .def = "1",
387 },
388 {
389 .name = "iodepth_batch",
390 .type = FIO_OPT_INT,
391 .off1 = td_var_offset(iodepth_batch),
392 .help = "Number of IO to submit in one go",
393 },
394 {
395 .name = "iodepth_low",
396 .type = FIO_OPT_INT,
397 .off1 = td_var_offset(iodepth_low),
398 .help = "Low water mark for queuing depth",
399 },
400 {
401 .name = "size",
402 .type = FIO_OPT_STR_VAL,
2dc1bbeb 403 .off1 = td_var_offset(size),
c3edbdba 404 .minval = 1,
214e1eca
JA		 405 .help = "Total size of device or files",
406 },
407 {
408 .name = "filesize",
409 .type = FIO_OPT_STR_VAL,
410 .off1 = td_var_offset(file_size_low),
411 .off2 = td_var_offset(file_size_high),
c3edbdba 412 .minval = 1,
214e1eca
JA		 413 .help = "Size of individual files",
414 },
415 {
416 .name = "bs",
d3aad8f2 417 .alias = "blocksize",
214e1eca
JA		 418 .type = FIO_OPT_STR_VAL_INT,
419 .off1 = td_var_offset(bs[DDIR_READ]),
420 .off2 = td_var_offset(bs[DDIR_WRITE]),
c3edbdba 421 .minval = 1,
214e1eca
JA		 422 .help = "Block size unit",
423 .def = "4k",
424 },
425 {
426 .name = "bsrange",
d3aad8f2 427 .alias = "blocksize_range",
214e1eca
JA		 428 .type = FIO_OPT_RANGE,
429 .off1 = td_var_offset(min_bs[DDIR_READ]),
430 .off2 = td_var_offset(max_bs[DDIR_READ]),
431 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
432 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
c3edbdba 433 .minval = 1,
214e1eca
JA		 434 .help = "Set block size range (in more detail than bs)",
435 },
436 {
437 .name = "bs_unaligned",
d3aad8f2 438 .alias = "blocksize_unaligned",
214e1eca
JA		 439 .type = FIO_OPT_STR_SET,
440 .off1 = td_var_offset(bs_unaligned),
441 .help = "Don't sector align IO buffer sizes",
442 },
443 {
444 .name = "offset",
445 .type = FIO_OPT_STR_VAL,
446 .off1 = td_var_offset(start_offset),
447 .help = "Start IO from this offset",
448 .def = "0",
449 },
450 {
451 .name = "randrepeat",
452 .type = FIO_OPT_BOOL,
453 .off1 = td_var_offset(rand_repeatable),
454 .help = "Use repeatable random IO pattern",
455 .def = "1",
456 },
457 {
458 .name = "norandommap",
459 .type = FIO_OPT_STR_SET,
460 .off1 = td_var_offset(norandommap),
461 .help = "Accept potential duplicate random blocks",
462 },
463 {
464 .name = "nrfiles",
465 .type = FIO_OPT_INT,
466 .off1 = td_var_offset(nr_files),
467 .help = "Split job workload between this number of files",
468 .def = "1",
469 },
470 {
471 .name = "openfiles",
472 .type = FIO_OPT_INT,
473 .off1 = td_var_offset(open_files),
474 .help = "Number of files to keep open at the same time",
475 },
476 {
477 .name = "file_service_type",
478 .type = FIO_OPT_STR,
479 .cb = str_fst_cb,
480 .off1 = td_var_offset(file_service_type),
481 .help = "How to select which file to service next",
482 .def = "roundrobin",
483 .posval = {
484 { .ival = "random",
485 .oval = FIO_FSERVICE_RANDOM,
486 .help = "Choose a file at random",
487 },
488 { .ival = "roundrobin",
489 .oval = FIO_FSERVICE_RR,
490 .help = "Round robin select files",
491 },
492 },
493 },
494 {
495 .name = "fsync",
496 .type = FIO_OPT_INT,
497 .off1 = td_var_offset(fsync_blocks),
498 .help = "Issue fsync for writes every given number of blocks",
499 .def = "0",
500 },
501 {
502 .name = "direct",
503 .type = FIO_OPT_BOOL,
504 .off1 = td_var_offset(odirect),
505 .help = "Use O_DIRECT IO (negates buffered)",
506 .def = "0",
507 },
508 {
509 .name = "buffered",
510 .type = FIO_OPT_BOOL,
511 .off1 = td_var_offset(odirect),
512 .neg = 1,
513 .help = "Use buffered IO (negates direct)",
514 .def = "1",
515 },
516 {
517 .name = "overwrite",
518 .type = FIO_OPT_BOOL,
519 .off1 = td_var_offset(overwrite),
520 .help = "When writing, set whether to overwrite current data",
521 .def = "0",
522 },
523 {
524 .name = "loops",
525 .type = FIO_OPT_INT,
526 .off1 = td_var_offset(loops),
527 .help = "Number of times to run the job",
528 .def = "1",
529 },
530 {
531 .name = "numjobs",
532 .type = FIO_OPT_INT,
533 .off1 = td_var_offset(numjobs),
534 .help = "Duplicate this job this many times",
535 .def = "1",
536 },
537 {
538 .name = "startdelay",
539 .type = FIO_OPT_INT,
540 .off1 = td_var_offset(start_delay),
541 .help = "Only start job when this period has passed",
542 .def = "0",
543 },
544 {
545 .name = "runtime",
546 .alias = "timeout",
547 .type = FIO_OPT_STR_VAL_TIME,
548 .off1 = td_var_offset(timeout),
549 .help = "Stop workload when this amount of time has passed",
550 .def = "0",
551 },
cf4464ca
JA		 552 {
553 .name = "time_based",
554 .type = FIO_OPT_STR_SET,
555 .off1 = td_var_offset(time_based),
556 .help = "Keep running until runtime/timeout is met",
557 },
214e1eca
JA		 558 {
559 .name = "mem",
d3aad8f2 560 .alias = "iomem",
214e1eca
JA		 561 .type = FIO_OPT_STR,
562 .cb = str_mem_cb,
563 .off1 = td_var_offset(mem_type),
564 .help = "Backing type for IO buffers",
565 .def = "malloc",
566 .posval = {
567 { .ival = "malloc",
568 .oval = MEM_MALLOC,
569 .help = "Use malloc(3) for IO buffers",
570 },
37c8cdfe
JA		 571 { .ival = "shm",
572 .oval = MEM_SHM,
573 .help = "Use shared memory segments for IO buffers",
574 },
214e1eca
JA		 575#ifdef FIO_HAVE_HUGETLB
576 { .ival = "shmhuge",
577 .oval = MEM_SHMHUGE,
578 .help = "Like shm, but use huge pages",
579 },
b370e46a 580#endif
37c8cdfe
JA		 581 { .ival = "mmap",
582 .oval = MEM_MMAP,
583 .help = "Use mmap(2) (file or anon) for IO buffers",
584 },
214e1eca
JA		 585#ifdef FIO_HAVE_HUGETLB
586 { .ival = "mmaphuge",
587 .oval = MEM_MMAPHUGE,
588 .help = "Like mmap, but use huge pages",
589 },
590#endif
591 },
592 },
593 {
594 .name = "verify",
595 .type = FIO_OPT_STR,
596 .off1 = td_var_offset(verify),
597 .help = "Verify data written",
598 .def = "0",
599 .posval = {
600 { .ival = "0",
601 .oval = VERIFY_NONE,
602 .help = "Don't do IO verification",
603 },
fcca4b58
JA		 604 { .ival = "md5",
605 .oval = VERIFY_MD5,
606 .help = "Use md5 checksums for verification",
607 },
d77a7af3
JA		 608 { .ival = "crc64",
609 .oval = VERIFY_CRC64,
610 .help = "Use crc64 checksums for verification",
611 },
214e1eca
JA		 612 { .ival = "crc32",
613 .oval = VERIFY_CRC32,
614 .help = "Use crc32 checksums for verification",
615 },
969f7ed3
JA		 616 { .ival = "crc16",
617 .oval = VERIFY_CRC16,
618 .help = "Use crc16 checksums for verification",
619 },
1e154bdb
JA		 620 { .ival = "crc7",
621 .oval = VERIFY_CRC7,
622 .help = "Use crc7 checksums for verification",
623 },
36690c9b
JA		 624 {
625 .ival = "null",
626 .oval = VERIFY_NULL,
627 .help = "Pretend to verify",
628 },
214e1eca
JA		 629 },
630 },
160b966d
JA		 631 {
632 .name = "verifysort",
633 .type = FIO_OPT_BOOL,
634 .off1 = td_var_offset(verifysort),
635 .help = "Sort written verify blocks for read back",
636 .def = "1",
637 },
3f9f4e26 638 {
a59e170d 639 .name = "verify_interval",
3f9f4e26 640 .type = FIO_OPT_STR_VAL_INT,
a59e170d 641 .off1 = td_var_offset(verify_interval),
819a9680 642 .minval = 2 * sizeof(struct verify_header),
a59e170d 643 .help = "Store verify buffer header every N bytes",
3f9f4e26 644 },
546a9142 645 {
a59e170d 646 .name = "verify_offset",
546a9142 647 .type = FIO_OPT_STR_VAL_INT,
a59e170d 648 .help = "Offset verify header location by N bytes",
546a9142 649 .def = "0",
a59e170d 650 .cb = str_verify_offset_cb,
546a9142 651 },
90059d65
JA		 652 {
653 .name = "verify_pattern",
654 .type = FIO_OPT_INT,
655 .cb = str_verify_pattern_cb,
90059d65
JA		 656 .help = "Fill pattern for IO buffers",
657 },
214e1eca
JA		 658 {
659 .name = "write_iolog",
660 .type = FIO_OPT_STR_STORE,
661 .off1 = td_var_offset(write_iolog_file),
662 .help = "Store IO pattern to file",
663 },
664 {
665 .name = "read_iolog",
666 .type = FIO_OPT_STR_STORE,
667 .off1 = td_var_offset(read_iolog_file),
668 .help = "Playback IO pattern from file",
669 },
670 {
671 .name = "exec_prerun",
672 .type = FIO_OPT_STR_STORE,
673 .off1 = td_var_offset(exec_prerun),
674 .help = "Execute this file prior to running job",
675 },
676 {
677 .name = "exec_postrun",
678 .type = FIO_OPT_STR_STORE,
679 .off1 = td_var_offset(exec_postrun),
680 .help = "Execute this file after running job",
681 },
682#ifdef FIO_HAVE_IOSCHED_SWITCH
683 {
684 .name = "ioscheduler",
685 .type = FIO_OPT_STR_STORE,
686 .off1 = td_var_offset(ioscheduler),
687 .help = "Use this IO scheduler on the backing device",
688 },
689#endif
690 {
691 .name = "zonesize",
692 .type = FIO_OPT_STR_VAL,
693 .off1 = td_var_offset(zone_size),
694 .help = "Give size of an IO zone",
695 .def = "0",
696 },
697 {
698 .name = "zoneskip",
699 .type = FIO_OPT_STR_VAL,
700 .off1 = td_var_offset(zone_skip),
701 .help = "Space between IO zones",
702 .def = "0",
703 },
704 {
705 .name = "lockmem",
706 .type = FIO_OPT_STR_VAL,
707 .cb = str_lockmem_cb,
708 .help = "Lock down this amount of memory",
709 .def = "0",
710 },
711 {
712 .name = "rwmixcycle",
713 .type = FIO_OPT_INT,
714 .off1 = td_var_offset(rwmixcycle),
715 .help = "Cycle period for mixed read/write workloads (msec)",
716 .def = "500",
717 },
718 {
719 .name = "rwmixread",
720 .type = FIO_OPT_INT,
e47f799f 721 .off1 = td_var_offset(rwmix[DDIR_READ]),
214e1eca
JA		 722 .maxval = 100,
723 .help = "Percentage of mixed workload that is reads",
724 .def = "50",
725 },
726 {
727 .name = "rwmixwrite",
728 .type = FIO_OPT_INT,
e47f799f 729 .off1 = td_var_offset(rwmix[DDIR_WRITE]),
214e1eca
JA		 730 .maxval = 100,
731 .help = "Percentage of mixed workload that is writes",
732 .def = "50",
733 },
734 {
735 .name = "nice",
736 .type = FIO_OPT_INT,
737 .off1 = td_var_offset(nice),
738 .help = "Set job CPU nice value",
739 .minval = -19,
740 .maxval = 20,
741 .def = "0",
742 },
743#ifdef FIO_HAVE_IOPRIO
744 {
745 .name = "prio",
746 .type = FIO_OPT_INT,
747 .cb = str_prio_cb,
748 .help = "Set job IO priority value",
749 .minval = 0,
750 .maxval = 7,
751 },
752 {
753 .name = "prioclass",
754 .type = FIO_OPT_INT,
755 .cb = str_prioclass_cb,
756 .help = "Set job IO priority class",
757 .minval = 0,
758 .maxval = 3,
759 },
760#endif
761 {
762 .name = "thinktime",
763 .type = FIO_OPT_INT,
764 .off1 = td_var_offset(thinktime),
765 .help = "Idle time between IO buffers (usec)",
766 .def = "0",
767 },
768 {
769 .name = "thinktime_spin",
770 .type = FIO_OPT_INT,
771 .off1 = td_var_offset(thinktime_spin),
772 .help = "Start think time by spinning this amount (usec)",
773 .def = "0",
774 },
775 {
776 .name = "thinktime_blocks",
777 .type = FIO_OPT_INT,
778 .off1 = td_var_offset(thinktime_blocks),
779 .help = "IO buffer period between 'thinktime'",
780 .def = "1",
781 },
782 {
783 .name = "rate",
784 .type = FIO_OPT_INT,
785 .off1 = td_var_offset(rate),
786 .help = "Set bandwidth rate",
787 },
788 {
789 .name = "ratemin",
790 .type = FIO_OPT_INT,
791 .off1 = td_var_offset(ratemin),
4e991c23
JA		 792 .help = "Job must meet this rate or it will be shutdown",
793 },
794 {
795 .name = "rate_iops",
796 .type = FIO_OPT_INT,
797 .off1 = td_var_offset(rate_iops),
798 .help = "Limit IO used to this number of IO operations/sec",
799 },
800 {
801 .name = "rate_iops_min",
802 .type = FIO_OPT_INT,
803 .off1 = td_var_offset(rate_iops_min),
804 .help = "Job must meet this rate or it will be shutdown",
214e1eca
JA		 805 },
806 {
807 .name = "ratecycle",
808 .type = FIO_OPT_INT,
809 .off1 = td_var_offset(ratecycle),
810 .help = "Window average for rate limits (msec)",
811 .def = "1000",
812 },
813 {
814 .name = "invalidate",
815 .type = FIO_OPT_BOOL,
816 .off1 = td_var_offset(invalidate_cache),
817 .help = "Invalidate buffer/page cache prior to running job",
818 .def = "1",
819 },
820 {
821 .name = "sync",
822 .type = FIO_OPT_BOOL,
823 .off1 = td_var_offset(sync_io),
824 .help = "Use O_SYNC for buffered writes",
825 .def = "0",
826 },
827 {
828 .name = "bwavgtime",
829 .type = FIO_OPT_INT,
830 .off1 = td_var_offset(bw_avg_time),
831 .help = "Time window over which to calculate bandwidth (msec)",
832 .def = "500",
833 },
834 {
835 .name = "create_serialize",
836 .type = FIO_OPT_BOOL,
837 .off1 = td_var_offset(create_serialize),
838 .help = "Serialize creating of job files",
839 .def = "1",
840 },
841 {
842 .name = "create_fsync",
843 .type = FIO_OPT_BOOL,
844 .off1 = td_var_offset(create_fsync),
845 .help = "Fsync file after creation",
846 .def = "1",
847 },
848 {
849 .name = "cpuload",
850 .type = FIO_OPT_INT,
851 .off1 = td_var_offset(cpuload),
852 .help = "Use this percentage of CPU",
853 },
854 {
855 .name = "cpuchunks",
856 .type = FIO_OPT_INT,
857 .off1 = td_var_offset(cpucycle),
858 .help = "Length of the CPU burn cycles (usecs)",
859 .def = "50000",
860 },
861#ifdef FIO_HAVE_CPU_AFFINITY
862 {
863 .name = "cpumask",
864 .type = FIO_OPT_INT,
865 .cb = str_cpumask_cb,
866 .help = "CPU affinity mask",
867 },
d2e268b0
JA		 868 {
869 .name = "cpus_allowed",
870 .type = FIO_OPT_STR,
871 .cb = str_cpus_allowed_cb,
872 .help = "Set CPUs allowed",
873 },
214e1eca
JA		 874#endif
875 {
876 .name = "end_fsync",
877 .type = FIO_OPT_BOOL,
878 .off1 = td_var_offset(end_fsync),
879 .help = "Include fsync at the end of job",
880 .def = "0",
881 },
882 {
883 .name = "fsync_on_close",
884 .type = FIO_OPT_BOOL,
885 .off1 = td_var_offset(fsync_on_close),
886 .help = "fsync files on close",
887 .def = "0",
888 },
889 {
890 .name = "unlink",
891 .type = FIO_OPT_BOOL,
892 .off1 = td_var_offset(unlink),
893 .help = "Unlink created files after job has completed",
894 .def = "0",
895 },
896 {
897 .name = "exitall",
898 .type = FIO_OPT_STR_SET,
899 .cb = str_exitall_cb,
900 .help = "Terminate all jobs when one exits",
901 },
902 {
903 .name = "stonewall",
904 .type = FIO_OPT_STR_SET,
905 .off1 = td_var_offset(stonewall),
906 .help = "Insert a hard barrier between this job and previous",
907 },
b3d62a75
JA		 908 {
909 .name = "new_group",
910 .type = FIO_OPT_STR_SET,
911 .off1 = td_var_offset(new_group),
912 .help = "Mark the start of a new group (for reporting)",
913 },
214e1eca
JA		 914 {
915 .name = "thread",
916 .type = FIO_OPT_STR_SET,
917 .off1 = td_var_offset(use_thread),
918 .help = "Use threads instead of forks",
919 },
920 {
921 .name = "write_bw_log",
922 .type = FIO_OPT_STR_SET,
923 .off1 = td_var_offset(write_bw_log),
924 .help = "Write log of bandwidth during run",
925 },
926 {
927 .name = "write_lat_log",
928 .type = FIO_OPT_STR_SET,
929 .off1 = td_var_offset(write_lat_log),
930 .help = "Write log of latency during run",
931 },
932 {
933 .name = "hugepage-size",
934 .type = FIO_OPT_STR_VAL,
935 .off1 = td_var_offset(hugepage_size),
936 .help = "When using hugepages, specify size of each page",
937 .def = __stringify(FIO_HUGE_PAGE),
938 },
939 {
940 .name = "group_reporting",
941 .type = FIO_OPT_STR_SET,
942 .off1 = td_var_offset(group_reporting),
943 .help = "Do reporting on a per-group basis",
944 },
e9459e5a
JA		 945 {
946 .name = "zero_buffers",
947 .type = FIO_OPT_STR_SET,
948 .off1 = td_var_offset(zero_buffers),
949 .help = "Init IO buffers to all zeroes",
950 },
0a839f30
JA		 951#ifdef FIO_HAVE_DISK_UTIL
952 {
953 .name = "disk_util",
954 .type = FIO_OPT_BOOL,
955 .off1 = td_var_offset(do_disk_util),
956 .help = "Log disk utilization stats",
957 .def = "1",
958 },
959#endif
214e1eca
JA		 960 {
961 .name = NULL,
962 },
963};
964
965void fio_options_dup_and_init(struct option *long_options)
966{
967 struct fio_option *o;
968 unsigned int i;
969
970 options_init(options);
971
972 i = 0;
973 while (long_options[i].name)
974 i++;
975
976 o = &options[0];
977 while (o->name) {
978 long_options[i].name = o->name;
979 long_options[i].val = FIO_GETOPT_JOB;
980 if (o->type == FIO_OPT_STR_SET)
981 long_options[i].has_arg = no_argument;
982 else
983 long_options[i].has_arg = required_argument;
984
985 i++;
986 o++;
987 assert(i < FIO_NR_OPTIONS);
988 }
989}
990
991int fio_option_parse(struct thread_data *td, const char *opt)
992{
993 return parse_option(opt, options, td);
994}
995
996int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
997{
998 return parse_cmd_option(opt, val, options, td);
999}
1000
1001void fio_fill_default_options(struct thread_data *td)
1002{
1003 fill_default_options(td, options);
1004}
1005
1006int fio_show_option_help(const char *opt)
1007{
1008 return show_cmd_help(options, opt);
1009}
d23bb327
JA		 1010
1011static void __options_mem(struct thread_data *td, int alloc)
1012{
1013 struct thread_options *o = &td->o;
1014 struct fio_option *opt;
1015 char **ptr;
1016 int i;
1017
1018 for (i = 0, opt = &options[0]; opt->name; i++, opt = &options[i]) {
1019 if (opt->type != FIO_OPT_STR_STORE)
1020 continue;
1021
1022 ptr = (void *) o + opt->off1;
1023 if (*ptr) {
1024 if (alloc)
1025 *ptr = strdup(*ptr);
1026 else {
1027 free(*ptr);
1028 *ptr = NULL;
1029 }
1030 }
1031 }
1032}
1033
1034/*
1035 * dupe FIO_OPT_STR_STORE options
1036 */
1037void options_mem_dupe(struct thread_data *td)
1038{
1039 __options_mem(td, 1);
1040}
1041
22d66213 1042void options_mem_free(struct thread_data fio_unused *td)
d23bb327 1043{
22d66213 1044#if 0
d23bb327 1045 __options_mem(td, 0);
22d66213 1046#endif
d23bb327 1047}
fio - Flexible IO Tester