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syslet: can't free the stack
[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;
ac684785 77 td->ioprio_set = 1;
214e1eca
JA		 78 return 0;
79}
80
81static int str_prio_cb(void *data, unsigned int *val)
82{
83 struct thread_data *td = data;
84
85 td->ioprio |= *val;
6cefbe33
JA		 86
87 /*
88 * If no class is set, assume BE
89 */
90 if ((td->ioprio >> IOPRIO_CLASS_SHIFT) == 0)
91 td->ioprio |= IOPRIO_CLASS_BE << IOPRIO_CLASS_SHIFT;
92
ac684785 93 td->ioprio_set = 1;
214e1eca
JA		 94 return 0;
95}
96#endif
97
98static int str_exitall_cb(void)
99{
100 exitall_on_terminate = 1;
101 return 0;
102}
103
214e1eca 104#ifdef FIO_HAVE_CPU_AFFINITY
d2e268b0
JA		 105static int str_cpumask_cb(void *data, unsigned int *val)
106{
107 struct thread_data *td = data;
214e1eca
JA		 108 unsigned int i;
109
d2e268b0 110 CPU_ZERO(&td->o.cpumask);
214e1eca 111
e600f7f1 112 for (i = 0; i < sizeof(int) * 8; i++)
d2e268b0
JA		 113 if ((1 << i) & *val)
114 CPU_SET(*val, &td->o.cpumask);
115
116 td->o.cpumask_set = 1;
117 return 0;
214e1eca
JA		 118}
119
d2e268b0 120static int str_cpus_allowed_cb(void *data, const char *input)
214e1eca
JA		 121{
122 struct thread_data *td = data;
d2e268b0
JA		 123 char *cpu, *str, *p;
124
125 CPU_ZERO(&td->o.cpumask);
126
127 p = str = strdup(input);
214e1eca 128
d2e268b0
JA		 129 strip_blank_front(&str);
130 strip_blank_end(str);
131
132 while ((cpu = strsep(&str, ",")) != NULL) {
133 if (!strlen(cpu))
134 break;
135 CPU_SET(atoi(cpu), &td->o.cpumask);
136 }
137
138 free(p);
375b2695 139 td->o.cpumask_set = 1;
d2e268b0 140 exit(0);
214e1eca
JA		 141 return 0;
142}
d2e268b0 143#endif
214e1eca
JA		 144
145static int str_fst_cb(void *data, const char *str)
146{
147 struct thread_data *td = data;
148 char *nr = get_opt_postfix(str);
149
150 td->file_service_nr = 1;
151 if (nr)
152 td->file_service_nr = atoi(nr);
153
154 return 0;
155}
156
157static int str_filename_cb(void *data, const char *input)
158{
159 struct thread_data *td = data;
160 char *fname, *str, *p;
161
162 p = str = strdup(input);
163
164 strip_blank_front(&str);
165 strip_blank_end(str);
166
167 if (!td->files_index)
2dc1bbeb 168 td->o.nr_files = 0;
214e1eca
JA		 169
170 while ((fname = strsep(&str, ":")) != NULL) {
171 if (!strlen(fname))
172 break;
173 add_file(td, fname);
2dc1bbeb 174 td->o.nr_files++;
214e1eca
JA		 175 }
176
177 free(p);
178 return 0;
179}
180
181static int str_directory_cb(void *data, const char fio_unused *str)
182{
183 struct thread_data *td = data;
184 struct stat sb;
185
2dc1bbeb
JA		 186 if (lstat(td->o.directory, &sb) < 0) {
187 log_err("fio: %s is not a directory\n", td->o.directory);
214e1eca
JA		 188 td_verror(td, errno, "lstat");
189 return 1;
190 }
191 if (!S_ISDIR(sb.st_mode)) {
2dc1bbeb 192 log_err("fio: %s is not a directory\n", td->o.directory);
214e1eca
JA		 193 return 1;
194 }
195
196 return 0;
197}
198
199static int str_opendir_cb(void *data, const char fio_unused *str)
200{
201 struct thread_data *td = data;
202
203 if (!td->files_index)
2dc1bbeb 204 td->o.nr_files = 0;
214e1eca 205
2dc1bbeb 206 return add_dir_files(td, td->o.opendir);
214e1eca
JA		 207}
208
a59e170d 209static int str_verify_offset_cb(void *data, unsigned int *off)
546a9142
SL		 210{
211 struct thread_data *td = data;
a59e170d 212
546a9142 213 if (*off && *off < sizeof(struct verify_header)) {
a59e170d 214 log_err("fio: verify_offset too small\n");
546a9142
SL		 215 return 1;
216 }
a59e170d
JA		 217
218 td->o.verify_offset = *off;
546a9142
SL		 219 return 0;
220}
221
bfb41d98 222static int str_verify_cb(void *data, const char *mem)
90059d65
JA		 223{
224 struct thread_data *td = data;
bfb41d98
JA		 225 unsigned int nr, msb;
226 char *pat;
90059d65 227
bfb41d98
JA		 228 if (td->o.verify != VERIFY_PATTERN)
229 return 0;
230
231 pat = get_opt_postfix(mem);
232 if (!pat) {
233 log_err("fio: missing pattern\n");
234 return 1;
235 }
236
237 if (strstr(pat, "0x") || strstr(pat, "0X"))
238 nr = strtol(pat, NULL, 16);
239 else
240 nr = strtol(pat, NULL, 16);
241
242 msb = fls(nr);
90059d65
JA		 243 if (msb <= 8)
244 td->o.verify_pattern_bytes = 1;
245 else if (msb <= 16)
246 td->o.verify_pattern_bytes = 2;
247 else if (msb <= 24)
248 td->o.verify_pattern_bytes = 3;
249 else
250 td->o.verify_pattern_bytes = 4;
251
bfb41d98 252 td->o.verify_pattern = nr;
90059d65
JA		 253 return 0;
254}
214e1eca
JA		 255
256#define __stringify_1(x) #x
257#define __stringify(x) __stringify_1(x)
258
259/*
260 * Map of job/command line options
261 */
262static struct fio_option options[] = {
263 {
264 .name = "description",
265 .type = FIO_OPT_STR_STORE,
266 .off1 = td_var_offset(description),
267 .help = "Text job description",
268 },
269 {
270 .name = "name",
271 .type = FIO_OPT_STR_STORE,
272 .off1 = td_var_offset(name),
273 .help = "Name of this job",
274 },
275 {
276 .name = "directory",
277 .type = FIO_OPT_STR_STORE,
278 .off1 = td_var_offset(directory),
279 .cb = str_directory_cb,
280 .help = "Directory to store files in",
281 },
282 {
283 .name = "filename",
284 .type = FIO_OPT_STR_STORE,
285 .off1 = td_var_offset(filename),
286 .cb = str_filename_cb,
287 .help = "File(s) to use for the workload",
288 },
289 {
290 .name = "opendir",
291 .type = FIO_OPT_STR_STORE,
292 .off1 = td_var_offset(opendir),
293 .cb = str_opendir_cb,
294 .help = "Recursively add files from this directory and down",
295 },
296 {
297 .name = "rw",
d3aad8f2 298 .alias = "readwrite",
214e1eca 299 .type = FIO_OPT_STR,
211097b2 300 .cb = str_rw_cb,
214e1eca
JA		 301 .off1 = td_var_offset(td_ddir),
302 .help = "IO direction",
303 .def = "read",
304 .posval = {
305 { .ival = "read",
306 .oval = TD_DDIR_READ,
307 .help = "Sequential read",
308 },
309 { .ival = "write",
310 .oval = TD_DDIR_WRITE,
311 .help = "Sequential write",
312 },
313 { .ival = "randread",
314 .oval = TD_DDIR_RANDREAD,
315 .help = "Random read",
316 },
317 { .ival = "randwrite",
318 .oval = TD_DDIR_RANDWRITE,
319 .help = "Random write",
320 },
321 { .ival = "rw",
322 .oval = TD_DDIR_RW,
323 .help = "Sequential read and write mix",
324 },
325 { .ival = "randrw",
326 .oval = TD_DDIR_RANDRW,
327 .help = "Random read and write mix"
328 },
329 },
330 },
331 {
332 .name = "ioengine",
333 .type = FIO_OPT_STR_STORE,
334 .off1 = td_var_offset(ioengine),
335 .help = "IO engine to use",
336 .def = "sync",
337 .posval = {
338 { .ival = "sync",
339 .help = "Use read/write",
340 },
a31041ea 341 { .ival = "psync",
342 .help = "Use pread/pwrite",
343 },
214e1eca
JA		 344#ifdef FIO_HAVE_LIBAIO
345 { .ival = "libaio",
346 .help = "Linux native asynchronous IO",
347 },
348#endif
349#ifdef FIO_HAVE_POSIXAIO
350 { .ival = "posixaio",
351 .help = "POSIX asynchronous IO",
352 },
353#endif
354 { .ival = "mmap",
355 .help = "Memory mapped IO",
356 },
357#ifdef FIO_HAVE_SPLICE
358 { .ival = "splice",
359 .help = "splice/vmsplice based IO",
360 },
9cce02e8
JA		 361 { .ival = "netsplice",
362 .help = "splice/vmsplice to/from the network",
363 },
214e1eca
JA		 364#endif
365#ifdef FIO_HAVE_SGIO
366 { .ival = "sg",
367 .help = "SCSI generic v3 IO",
368 },
369#endif
370 { .ival = "null",
371 .help = "Testing engine (no data transfer)",
372 },
373 { .ival = "net",
374 .help = "Network IO",
375 },
376#ifdef FIO_HAVE_SYSLET
377 { .ival = "syslet-rw",
378 .help = "syslet enabled async pread/pwrite IO",
379 },
380#endif
381 { .ival = "cpuio",
382 .help = "CPU cycler burner engine",
383 },
b8c82a46
JA		 384#ifdef FIO_HAVE_GUASI
385 { .ival = "guasi",
386 .help = "GUASI IO engine",
387 },
388#endif
214e1eca
JA		 389 { .ival = "external",
390 .help = "Load external engine (append name)",
391 },
392 },
393 },
394 {
395 .name = "iodepth",
396 .type = FIO_OPT_INT,
397 .off1 = td_var_offset(iodepth),
398 .help = "Amount of IO buffers to keep in flight",
399 .def = "1",
400 },
401 {
402 .name = "iodepth_batch",
403 .type = FIO_OPT_INT,
404 .off1 = td_var_offset(iodepth_batch),
405 .help = "Number of IO to submit in one go",
afdf9352 406 .parent = "iodepth",
214e1eca
JA		 407 },
408 {
409 .name = "iodepth_low",
410 .type = FIO_OPT_INT,
411 .off1 = td_var_offset(iodepth_low),
412 .help = "Low water mark for queuing depth",
afdf9352 413 .parent = "iodepth",
214e1eca
JA		 414 },
415 {
416 .name = "size",
417 .type = FIO_OPT_STR_VAL,
2dc1bbeb 418 .off1 = td_var_offset(size),
c3edbdba 419 .minval = 1,
214e1eca
JA		 420 .help = "Total size of device or files",
421 },
422 {
423 .name = "filesize",
424 .type = FIO_OPT_STR_VAL,
425 .off1 = td_var_offset(file_size_low),
426 .off2 = td_var_offset(file_size_high),
c3edbdba 427 .minval = 1,
214e1eca
JA		 428 .help = "Size of individual files",
429 },
67a1000f
JA		 430 {
431 .name = "offset",
432 .alias = "fileoffset",
433 .type = FIO_OPT_STR_VAL,
434 .off1 = td_var_offset(start_offset),
435 .help = "Start IO from this offset",
436 .def = "0",
437 },
214e1eca
JA		 438 {
439 .name = "bs",
d3aad8f2 440 .alias = "blocksize",
214e1eca
JA		 441 .type = FIO_OPT_STR_VAL_INT,
442 .off1 = td_var_offset(bs[DDIR_READ]),
443 .off2 = td_var_offset(bs[DDIR_WRITE]),
c3edbdba 444 .minval = 1,
214e1eca
JA		 445 .help = "Block size unit",
446 .def = "4k",
67a1000f 447 .parent = "rw",
214e1eca
JA		 448 },
449 {
450 .name = "bsrange",
d3aad8f2 451 .alias = "blocksize_range",
214e1eca
JA		 452 .type = FIO_OPT_RANGE,
453 .off1 = td_var_offset(min_bs[DDIR_READ]),
454 .off2 = td_var_offset(max_bs[DDIR_READ]),
455 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
456 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
c3edbdba 457 .minval = 1,
214e1eca 458 .help = "Set block size range (in more detail than bs)",
67a1000f 459 .parent = "rw",
214e1eca
JA		 460 },
461 {
462 .name = "bs_unaligned",
d3aad8f2 463 .alias = "blocksize_unaligned",
214e1eca
JA		 464 .type = FIO_OPT_STR_SET,
465 .off1 = td_var_offset(bs_unaligned),
466 .help = "Don't sector align IO buffer sizes",
67a1000f 467 .parent = "rw",
214e1eca
JA		 468 },
469 {
470 .name = "randrepeat",
471 .type = FIO_OPT_BOOL,
472 .off1 = td_var_offset(rand_repeatable),
473 .help = "Use repeatable random IO pattern",
474 .def = "1",
67a1000f 475 .parent = "rw",
214e1eca
JA		 476 },
477 {
478 .name = "norandommap",
479 .type = FIO_OPT_STR_SET,
480 .off1 = td_var_offset(norandommap),
481 .help = "Accept potential duplicate random blocks",
67a1000f 482 .parent = "rw",
214e1eca
JA		 483 },
484 {
485 .name = "nrfiles",
486 .type = FIO_OPT_INT,
487 .off1 = td_var_offset(nr_files),
488 .help = "Split job workload between this number of files",
489 .def = "1",
490 },
491 {
492 .name = "openfiles",
493 .type = FIO_OPT_INT,
494 .off1 = td_var_offset(open_files),
495 .help = "Number of files to keep open at the same time",
496 },
497 {
498 .name = "file_service_type",
499 .type = FIO_OPT_STR,
500 .cb = str_fst_cb,
501 .off1 = td_var_offset(file_service_type),
502 .help = "How to select which file to service next",
503 .def = "roundrobin",
504 .posval = {
505 { .ival = "random",
506 .oval = FIO_FSERVICE_RANDOM,
507 .help = "Choose a file at random",
508 },
509 { .ival = "roundrobin",
510 .oval = FIO_FSERVICE_RR,
511 .help = "Round robin select files",
512 },
513 },
67a1000f
JA		 514 .parent = "nrfiles",
515 },
516 {
517 .name = "fadvise_hint",
518 .type = FIO_OPT_BOOL,
519 .off1 = td_var_offset(fadvise_hint),
520 .help = "Use fadvise() to advise the kernel on IO pattern",
521 .def = "1",
214e1eca
JA		 522 },
523 {
524 .name = "fsync",
525 .type = FIO_OPT_INT,
526 .off1 = td_var_offset(fsync_blocks),
527 .help = "Issue fsync for writes every given number of blocks",
528 .def = "0",
529 },
530 {
531 .name = "direct",
532 .type = FIO_OPT_BOOL,
533 .off1 = td_var_offset(odirect),
534 .help = "Use O_DIRECT IO (negates buffered)",
535 .def = "0",
536 },
537 {
538 .name = "buffered",
539 .type = FIO_OPT_BOOL,
540 .off1 = td_var_offset(odirect),
541 .neg = 1,
542 .help = "Use buffered IO (negates direct)",
543 .def = "1",
544 },
545 {
546 .name = "overwrite",
547 .type = FIO_OPT_BOOL,
548 .off1 = td_var_offset(overwrite),
549 .help = "When writing, set whether to overwrite current data",
550 .def = "0",
551 },
552 {
553 .name = "loops",
554 .type = FIO_OPT_INT,
555 .off1 = td_var_offset(loops),
556 .help = "Number of times to run the job",
557 .def = "1",
558 },
559 {
560 .name = "numjobs",
561 .type = FIO_OPT_INT,
562 .off1 = td_var_offset(numjobs),
563 .help = "Duplicate this job this many times",
564 .def = "1",
565 },
566 {
567 .name = "startdelay",
568 .type = FIO_OPT_INT,
569 .off1 = td_var_offset(start_delay),
570 .help = "Only start job when this period has passed",
571 .def = "0",
572 },
573 {
574 .name = "runtime",
575 .alias = "timeout",
576 .type = FIO_OPT_STR_VAL_TIME,
577 .off1 = td_var_offset(timeout),
578 .help = "Stop workload when this amount of time has passed",
579 .def = "0",
580 },
cf4464ca
JA		 581 {
582 .name = "time_based",
583 .type = FIO_OPT_STR_SET,
584 .off1 = td_var_offset(time_based),
585 .help = "Keep running until runtime/timeout is met",
586 },
214e1eca
JA		 587 {
588 .name = "mem",
d3aad8f2 589 .alias = "iomem",
214e1eca
JA		 590 .type = FIO_OPT_STR,
591 .cb = str_mem_cb,
592 .off1 = td_var_offset(mem_type),
593 .help = "Backing type for IO buffers",
594 .def = "malloc",
595 .posval = {
596 { .ival = "malloc",
597 .oval = MEM_MALLOC,
598 .help = "Use malloc(3) for IO buffers",
599 },
37c8cdfe
JA		 600 { .ival = "shm",
601 .oval = MEM_SHM,
602 .help = "Use shared memory segments for IO buffers",
603 },
214e1eca
JA		 604#ifdef FIO_HAVE_HUGETLB
605 { .ival = "shmhuge",
606 .oval = MEM_SHMHUGE,
607 .help = "Like shm, but use huge pages",
608 },
b370e46a 609#endif
37c8cdfe
JA		 610 { .ival = "mmap",
611 .oval = MEM_MMAP,
612 .help = "Use mmap(2) (file or anon) for IO buffers",
613 },
214e1eca
JA		 614#ifdef FIO_HAVE_HUGETLB
615 { .ival = "mmaphuge",
616 .oval = MEM_MMAPHUGE,
617 .help = "Like mmap, but use huge pages",
618 },
619#endif
620 },
621 },
622 {
623 .name = "verify",
624 .type = FIO_OPT_STR,
625 .off1 = td_var_offset(verify),
bfb41d98 626 .cb = str_verify_cb,
214e1eca
JA		 627 .help = "Verify data written",
628 .def = "0",
629 .posval = {
630 { .ival = "0",
631 .oval = VERIFY_NONE,
632 .help = "Don't do IO verification",
633 },
fcca4b58
JA		 634 { .ival = "md5",
635 .oval = VERIFY_MD5,
636 .help = "Use md5 checksums for verification",
637 },
d77a7af3
JA		 638 { .ival = "crc64",
639 .oval = VERIFY_CRC64,
640 .help = "Use crc64 checksums for verification",
641 },
214e1eca
JA		 642 { .ival = "crc32",
643 .oval = VERIFY_CRC32,
644 .help = "Use crc32 checksums for verification",
645 },
969f7ed3
JA		 646 { .ival = "crc16",
647 .oval = VERIFY_CRC16,
648 .help = "Use crc16 checksums for verification",
649 },
1e154bdb
JA		 650 { .ival = "crc7",
651 .oval = VERIFY_CRC7,
652 .help = "Use crc7 checksums for verification",
653 },
cd14cc10
JA		 654 { .ival = "sha256",
655 .oval = VERIFY_SHA256,
656 .help = "Use sha256 checksums for verification",
657 },
658 { .ival = "sha512",
659 .oval = VERIFY_SHA512,
660 .help = "Use sha512 checksums for verification",
661 },
7437ee87
SL		 662 { .ival = "meta",
663 .oval = VERIFY_META,
664 .help = "Use io information",
665 },
bfb41d98
JA		 666 { .ival = "pattern",
667 .oval = VERIFY_PATTERN,
668 .help = "Verify a specific buffer pattern",
669 },
36690c9b
JA		 670 {
671 .ival = "null",
672 .oval = VERIFY_NULL,
673 .help = "Pretend to verify",
674 },
214e1eca
JA		 675 },
676 },
005c565a
JA		 677 {
678 .name = "do_verify",
68e1f29a 679 .type = FIO_OPT_BOOL,
005c565a
JA		 680 .off1 = td_var_offset(do_verify),
681 .help = "Run verification stage after write",
682 .def = "1",
683 .parent = "verify",
684 },
160b966d
JA		 685 {
686 .name = "verifysort",
687 .type = FIO_OPT_BOOL,
688 .off1 = td_var_offset(verifysort),
689 .help = "Sort written verify blocks for read back",
690 .def = "1",
c83f2df1 691 .parent = "verify",
160b966d 692 },
3f9f4e26 693 {
a59e170d 694 .name = "verify_interval",
3f9f4e26 695 .type = FIO_OPT_STR_VAL_INT,
a59e170d 696 .off1 = td_var_offset(verify_interval),
819a9680 697 .minval = 2 * sizeof(struct verify_header),
a59e170d 698 .help = "Store verify buffer header every N bytes",
afdf9352 699 .parent = "verify",
3f9f4e26 700 },
546a9142 701 {
a59e170d 702 .name = "verify_offset",
546a9142 703 .type = FIO_OPT_STR_VAL_INT,
a59e170d 704 .help = "Offset verify header location by N bytes",
546a9142 705 .def = "0",
a59e170d 706 .cb = str_verify_offset_cb,
afdf9352 707 .parent = "verify",
546a9142 708 },
a12a3b4d
JA		 709 {
710 .name = "verify_fatal",
68e1f29a 711 .type = FIO_OPT_BOOL,
a12a3b4d
JA		 712 .off1 = td_var_offset(verify_fatal),
713 .def = "0",
714 .help = "Exit on a single verify failure, don't continue",
715 .parent = "verify",
716 },
214e1eca
JA		 717 {
718 .name = "write_iolog",
719 .type = FIO_OPT_STR_STORE,
720 .off1 = td_var_offset(write_iolog_file),
721 .help = "Store IO pattern to file",
722 },
723 {
724 .name = "read_iolog",
725 .type = FIO_OPT_STR_STORE,
726 .off1 = td_var_offset(read_iolog_file),
727 .help = "Playback IO pattern from file",
728 },
729 {
730 .name = "exec_prerun",
731 .type = FIO_OPT_STR_STORE,
732 .off1 = td_var_offset(exec_prerun),
733 .help = "Execute this file prior to running job",
734 },
735 {
736 .name = "exec_postrun",
737 .type = FIO_OPT_STR_STORE,
738 .off1 = td_var_offset(exec_postrun),
739 .help = "Execute this file after running job",
740 },
741#ifdef FIO_HAVE_IOSCHED_SWITCH
742 {
743 .name = "ioscheduler",
744 .type = FIO_OPT_STR_STORE,
745 .off1 = td_var_offset(ioscheduler),
746 .help = "Use this IO scheduler on the backing device",
747 },
748#endif
749 {
750 .name = "zonesize",
751 .type = FIO_OPT_STR_VAL,
752 .off1 = td_var_offset(zone_size),
753 .help = "Give size of an IO zone",
754 .def = "0",
755 },
756 {
757 .name = "zoneskip",
758 .type = FIO_OPT_STR_VAL,
759 .off1 = td_var_offset(zone_skip),
760 .help = "Space between IO zones",
761 .def = "0",
762 },
763 {
764 .name = "lockmem",
765 .type = FIO_OPT_STR_VAL,
766 .cb = str_lockmem_cb,
767 .help = "Lock down this amount of memory",
768 .def = "0",
769 },
214e1eca
JA		 770 {
771 .name = "rwmixread",
772 .type = FIO_OPT_INT,
e47f799f 773 .off1 = td_var_offset(rwmix[DDIR_READ]),
214e1eca
JA		 774 .maxval = 100,
775 .help = "Percentage of mixed workload that is reads",
776 .def = "50",
777 },
778 {
779 .name = "rwmixwrite",
780 .type = FIO_OPT_INT,
e47f799f 781 .off1 = td_var_offset(rwmix[DDIR_WRITE]),
214e1eca
JA		 782 .maxval = 100,
783 .help = "Percentage of mixed workload that is writes",
784 .def = "50",
785 },
afdf9352
JA		 786 {
787 .name = "rwmixcycle",
788 .type = FIO_OPT_INT,
789 .off1 = td_var_offset(rwmixcycle),
790 .help = "Cycle period for mixed read/write workloads (msec)",
791 .def = "500",
792 .parent = "rwmixread",
793 },
214e1eca
JA		 794 {
795 .name = "nice",
796 .type = FIO_OPT_INT,
797 .off1 = td_var_offset(nice),
798 .help = "Set job CPU nice value",
799 .minval = -19,
800 .maxval = 20,
801 .def = "0",
802 },
803#ifdef FIO_HAVE_IOPRIO
804 {
805 .name = "prio",
806 .type = FIO_OPT_INT,
807 .cb = str_prio_cb,
808 .help = "Set job IO priority value",
809 .minval = 0,
810 .maxval = 7,
811 },
812 {
813 .name = "prioclass",
814 .type = FIO_OPT_INT,
815 .cb = str_prioclass_cb,
816 .help = "Set job IO priority class",
817 .minval = 0,
818 .maxval = 3,
819 },
820#endif
821 {
822 .name = "thinktime",
823 .type = FIO_OPT_INT,
824 .off1 = td_var_offset(thinktime),
825 .help = "Idle time between IO buffers (usec)",
826 .def = "0",
827 },
828 {
829 .name = "thinktime_spin",
830 .type = FIO_OPT_INT,
831 .off1 = td_var_offset(thinktime_spin),
832 .help = "Start think time by spinning this amount (usec)",
833 .def = "0",
afdf9352 834 .parent = "thinktime",
214e1eca
JA		 835 },
836 {
837 .name = "thinktime_blocks",
838 .type = FIO_OPT_INT,
839 .off1 = td_var_offset(thinktime_blocks),
840 .help = "IO buffer period between 'thinktime'",
841 .def = "1",
afdf9352 842 .parent = "thinktime",
214e1eca
JA		 843 },
844 {
845 .name = "rate",
846 .type = FIO_OPT_INT,
847 .off1 = td_var_offset(rate),
848 .help = "Set bandwidth rate",
849 },
850 {
851 .name = "ratemin",
852 .type = FIO_OPT_INT,
853 .off1 = td_var_offset(ratemin),
4e991c23 854 .help = "Job must meet this rate or it will be shutdown",
afdf9352 855 .parent = "rate",
4e991c23
JA		 856 },
857 {
858 .name = "rate_iops",
859 .type = FIO_OPT_INT,
860 .off1 = td_var_offset(rate_iops),
861 .help = "Limit IO used to this number of IO operations/sec",
862 },
863 {
864 .name = "rate_iops_min",
865 .type = FIO_OPT_INT,
866 .off1 = td_var_offset(rate_iops_min),
867 .help = "Job must meet this rate or it will be shutdown",
afdf9352 868 .parent = "rate_iops",
214e1eca
JA		 869 },
870 {
871 .name = "ratecycle",
872 .type = FIO_OPT_INT,
873 .off1 = td_var_offset(ratecycle),
874 .help = "Window average for rate limits (msec)",
875 .def = "1000",
afdf9352 876 .parent = "rate",
214e1eca
JA		 877 },
878 {
879 .name = "invalidate",
880 .type = FIO_OPT_BOOL,
881 .off1 = td_var_offset(invalidate_cache),
882 .help = "Invalidate buffer/page cache prior to running job",
883 .def = "1",
884 },
885 {
886 .name = "sync",
887 .type = FIO_OPT_BOOL,
888 .off1 = td_var_offset(sync_io),
889 .help = "Use O_SYNC for buffered writes",
890 .def = "0",
67a1000f 891 .parent = "buffered",
214e1eca
JA		 892 },
893 {
894 .name = "bwavgtime",
895 .type = FIO_OPT_INT,
896 .off1 = td_var_offset(bw_avg_time),
897 .help = "Time window over which to calculate bandwidth (msec)",
898 .def = "500",
899 },
900 {
901 .name = "create_serialize",
902 .type = FIO_OPT_BOOL,
903 .off1 = td_var_offset(create_serialize),
904 .help = "Serialize creating of job files",
905 .def = "1",
906 },
907 {
908 .name = "create_fsync",
909 .type = FIO_OPT_BOOL,
910 .off1 = td_var_offset(create_fsync),
911 .help = "Fsync file after creation",
912 .def = "1",
913 },
914 {
915 .name = "cpuload",
916 .type = FIO_OPT_INT,
917 .off1 = td_var_offset(cpuload),
918 .help = "Use this percentage of CPU",
919 },
920 {
921 .name = "cpuchunks",
922 .type = FIO_OPT_INT,
923 .off1 = td_var_offset(cpucycle),
924 .help = "Length of the CPU burn cycles (usecs)",
925 .def = "50000",
67a1000f 926 .parent = "cpuload",
214e1eca
JA		 927 },
928#ifdef FIO_HAVE_CPU_AFFINITY
929 {
930 .name = "cpumask",
931 .type = FIO_OPT_INT,
932 .cb = str_cpumask_cb,
933 .help = "CPU affinity mask",
934 },
d2e268b0
JA		 935 {
936 .name = "cpus_allowed",
937 .type = FIO_OPT_STR,
938 .cb = str_cpus_allowed_cb,
939 .help = "Set CPUs allowed",
940 },
214e1eca
JA		 941#endif
942 {
943 .name = "end_fsync",
944 .type = FIO_OPT_BOOL,
945 .off1 = td_var_offset(end_fsync),
946 .help = "Include fsync at the end of job",
947 .def = "0",
948 },
949 {
950 .name = "fsync_on_close",
951 .type = FIO_OPT_BOOL,
952 .off1 = td_var_offset(fsync_on_close),
953 .help = "fsync files on close",
954 .def = "0",
955 },
956 {
957 .name = "unlink",
958 .type = FIO_OPT_BOOL,
959 .off1 = td_var_offset(unlink),
960 .help = "Unlink created files after job has completed",
961 .def = "0",
962 },
963 {
964 .name = "exitall",
965 .type = FIO_OPT_STR_SET,
966 .cb = str_exitall_cb,
967 .help = "Terminate all jobs when one exits",
968 },
969 {
970 .name = "stonewall",
971 .type = FIO_OPT_STR_SET,
972 .off1 = td_var_offset(stonewall),
973 .help = "Insert a hard barrier between this job and previous",
974 },
b3d62a75
JA		 975 {
976 .name = "new_group",
977 .type = FIO_OPT_STR_SET,
978 .off1 = td_var_offset(new_group),
979 .help = "Mark the start of a new group (for reporting)",
980 },
214e1eca
JA		 981 {
982 .name = "thread",
983 .type = FIO_OPT_STR_SET,
984 .off1 = td_var_offset(use_thread),
985 .help = "Use threads instead of forks",
986 },
987 {
988 .name = "write_bw_log",
989 .type = FIO_OPT_STR_SET,
990 .off1 = td_var_offset(write_bw_log),
991 .help = "Write log of bandwidth during run",
992 },
993 {
994 .name = "write_lat_log",
995 .type = FIO_OPT_STR_SET,
996 .off1 = td_var_offset(write_lat_log),
997 .help = "Write log of latency during run",
998 },
999 {
1000 .name = "hugepage-size",
1001 .type = FIO_OPT_STR_VAL,
1002 .off1 = td_var_offset(hugepage_size),
1003 .help = "When using hugepages, specify size of each page",
1004 .def = __stringify(FIO_HUGE_PAGE),
1005 },
1006 {
1007 .name = "group_reporting",
1008 .type = FIO_OPT_STR_SET,
1009 .off1 = td_var_offset(group_reporting),
1010 .help = "Do reporting on a per-group basis",
1011 },
e9459e5a
JA		 1012 {
1013 .name = "zero_buffers",
1014 .type = FIO_OPT_STR_SET,
1015 .off1 = td_var_offset(zero_buffers),
1016 .help = "Init IO buffers to all zeroes",
1017 },
0a839f30
JA		 1018#ifdef FIO_HAVE_DISK_UTIL
1019 {
1020 .name = "disk_util",
1021 .type = FIO_OPT_BOOL,
1022 .off1 = td_var_offset(do_disk_util),
1023 .help = "Log disk utilization stats",
1024 .def = "1",
1025 },
1026#endif
214e1eca
JA		 1027 {
1028 .name = NULL,
1029 },
1030};
1031
1032void fio_options_dup_and_init(struct option *long_options)
1033{
1034 struct fio_option *o;
1035 unsigned int i;
1036
1037 options_init(options);
1038
1039 i = 0;
1040 while (long_options[i].name)
1041 i++;
1042
1043 o = &options[0];
1044 while (o->name) {
1045 long_options[i].name = o->name;
1046 long_options[i].val = FIO_GETOPT_JOB;
1047 if (o->type == FIO_OPT_STR_SET)
1048 long_options[i].has_arg = no_argument;
1049 else
1050 long_options[i].has_arg = required_argument;
1051
1052 i++;
1053 o++;
1054 assert(i < FIO_NR_OPTIONS);
1055 }
1056}
1057
1058int fio_option_parse(struct thread_data *td, const char *opt)
1059{
1060 return parse_option(opt, options, td);
1061}
1062
1063int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
1064{
1065 return parse_cmd_option(opt, val, options, td);
1066}
1067
1068void fio_fill_default_options(struct thread_data *td)
1069{
1070 fill_default_options(td, options);
1071}
1072
1073int fio_show_option_help(const char *opt)
1074{
1075 return show_cmd_help(options, opt);
1076}
d23bb327
JA		 1077
1078static void __options_mem(struct thread_data *td, int alloc)
1079{
1080 struct thread_options *o = &td->o;
1081 struct fio_option *opt;
1082 char **ptr;
1083 int i;
1084
1085 for (i = 0, opt = &options[0]; opt->name; i++, opt = &options[i]) {
1086 if (opt->type != FIO_OPT_STR_STORE)
1087 continue;
1088
1089 ptr = (void *) o + opt->off1;
1090 if (*ptr) {
1091 if (alloc)
1092 *ptr = strdup(*ptr);
1093 else {
1094 free(*ptr);
1095 *ptr = NULL;
1096 }
1097 }
1098 }
1099}
1100
1101/*
1102 * dupe FIO_OPT_STR_STORE options
1103 */
1104void options_mem_dupe(struct thread_data *td)
1105{
1106 __options_mem(td, 1);
1107}
1108
22d66213 1109void options_mem_free(struct thread_data fio_unused *td)
d23bb327 1110{
22d66213 1111#if 0
d23bb327 1112 __options_mem(td, 0);
22d66213 1113#endif
d23bb327 1114}
fio - Flexible IO Tester