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Calloc() cleanup
[fio.git] / options.c
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1#include <stdio.h>
2#include <stdlib.h>
3#include <unistd.h>
4#include <ctype.h>
5#include <string.h>
6#include <assert.h>
7#include <libgen.h>
8#include <fcntl.h>
9#include <sys/types.h>
10#include <sys/stat.h>
11
12#include "fio.h"
13#include "verify.h"
14#include "parse.h"
15#include "lib/fls.h"
16#include "options.h"
17
18#include "crc/crc32c.h"
19
20/*
21 * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
22 */
23static char *get_opt_postfix(const char *str)
24{
25 char *p = strstr(str, ":");
26
27 if (!p)
28 return NULL;
29
30 p++;
31 strip_blank_front(&p);
32 strip_blank_end(p);
33 return strdup(p);
34}
35
36static int converthexchartoint(char a)
37{
38 int base;
39
40 switch (a) {
41 case '0'...'9':
42 base = '0';
43 break;
44 case 'A'...'F':
45 base = 'A' - 10;
46 break;
47 case 'a'...'f':
48 base = 'a' - 10;
49 break;
50 default:
51 base = 0;
52 }
53 return a - base;
54}
55
56static int bs_cmp(const void *p1, const void *p2)
57{
58 const struct bssplit *bsp1 = p1;
59 const struct bssplit *bsp2 = p2;
60
61 return bsp1->perc < bsp2->perc;
62}
63
64static int bssplit_ddir(struct thread_options *o, int ddir, char *str)
65{
66 struct bssplit *bssplit;
67 unsigned int i, perc, perc_missing;
68 unsigned int max_bs, min_bs;
69 long long val;
70 char *fname;
71
72 o->bssplit_nr[ddir] = 4;
73 bssplit = malloc(4 * sizeof(struct bssplit));
74
75 i = 0;
76 max_bs = 0;
77 min_bs = -1;
78 while ((fname = strsep(&str, ":")) != NULL) {
79 char *perc_str;
80
81 if (!strlen(fname))
82 break;
83
84 /*
85 * grow struct buffer, if needed
86 */
87 if (i == o->bssplit_nr[ddir]) {
88 o->bssplit_nr[ddir] <<= 1;
89 bssplit = realloc(bssplit, o->bssplit_nr[ddir]
90 * sizeof(struct bssplit));
91 }
92
93 perc_str = strstr(fname, "/");
94 if (perc_str) {
95 *perc_str = '\0';
96 perc_str++;
97 perc = atoi(perc_str);
98 if (perc > 100)
99 perc = 100;
100 else if (!perc)
101 perc = -1;
102 } else
103 perc = -1;
104
105 if (str_to_decimal(fname, &val, 1, o)) {
106 log_err("fio: bssplit conversion failed\n");
107 free(bssplit);
108 return 1;
109 }
110
111 if (val > max_bs)
112 max_bs = val;
113 if (val < min_bs)
114 min_bs = val;
115
116 bssplit[i].bs = val;
117 bssplit[i].perc = perc;
118 i++;
119 }
120
121 o->bssplit_nr[ddir] = i;
122
123 /*
124 * Now check if the percentages add up, and how much is missing
125 */
126 perc = perc_missing = 0;
127 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
128 struct bssplit *bsp = &bssplit[i];
129
130 if (bsp->perc == (unsigned char) -1)
131 perc_missing++;
132 else
133 perc += bsp->perc;
134 }
135
136 if (perc > 100) {
137 log_err("fio: bssplit percentages add to more than 100%%\n");
138 free(bssplit);
139 return 1;
140 }
141 /*
142 * If values didn't have a percentage set, divide the remains between
143 * them.
144 */
145 if (perc_missing) {
146 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
147 struct bssplit *bsp = &bssplit[i];
148
149 if (bsp->perc == (unsigned char) -1)
150 bsp->perc = (100 - perc) / perc_missing;
151 }
152 }
153
154 o->min_bs[ddir] = min_bs;
155 o->max_bs[ddir] = max_bs;
156
157 /*
158 * now sort based on percentages, for ease of lookup
159 */
160 qsort(bssplit, o->bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
161 o->bssplit[ddir] = bssplit;
162 return 0;
163}
164
165static int str_bssplit_cb(void *data, const char *input)
166{
167 struct thread_data *td = data;
168 char *str, *p, *odir, *ddir;
169 int ret = 0;
170
171 if (parse_dryrun())
172 return 0;
173
174 p = str = strdup(input);
175
176 strip_blank_front(&str);
177 strip_blank_end(str);
178
179 odir = strchr(str, ',');
180 if (odir) {
181 ddir = strchr(odir + 1, ',');
182 if (ddir) {
183 ret = bssplit_ddir(&td->o, DDIR_TRIM, ddir + 1);
184 if (!ret)
185 *ddir = '\0';
186 } else {
187 char *op;
188
189 op = strdup(odir + 1);
190 ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
191
192 free(op);
193 }
194 if (!ret)
195 ret = bssplit_ddir(&td->o, DDIR_WRITE, odir + 1);
196 if (!ret) {
197 *odir = '\0';
198 ret = bssplit_ddir(&td->o, DDIR_READ, str);
199 }
200 } else {
201 char *op;
202
203 op = strdup(str);
204 ret = bssplit_ddir(&td->o, DDIR_WRITE, op);
205 free(op);
206
207 if (!ret) {
208 op = strdup(str);
209 ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
210 free(op);
211 }
212 ret = bssplit_ddir(&td->o, DDIR_READ, str);
213 }
214
215 free(p);
216 return ret;
217}
218
219static int str2error(char *str)
220{
221 const char *err[] = { "EPERM", "ENOENT", "ESRCH", "EINTR", "EIO",
222 "ENXIO", "E2BIG", "ENOEXEC", "EBADF",
223 "ECHILD", "EAGAIN", "ENOMEM", "EACCES",
224 "EFAULT", "ENOTBLK", "EBUSY", "EEXIST",
225 "EXDEV", "ENODEV", "ENOTDIR", "EISDIR",
226 "EINVAL", "ENFILE", "EMFILE", "ENOTTY",
227 "ETXTBSY","EFBIG", "ENOSPC", "ESPIPE",
228 "EROFS","EMLINK", "EPIPE", "EDOM", "ERANGE" };
229 int i = 0, num = sizeof(err) / sizeof(void *);
230
231 while (i < num) {
232 if (!strcmp(err[i], str))
233 return i + 1;
234 i++;
235 }
236 return 0;
237}
238
239static int ignore_error_type(struct thread_data *td, int etype, char *str)
240{
241 unsigned int i;
242 int *error;
243 char *fname;
244
245 if (etype >= ERROR_TYPE_CNT) {
246 log_err("Illegal error type\n");
247 return 1;
248 }
249
250 td->o.ignore_error_nr[etype] = 4;
251 error = malloc(4 * sizeof(struct bssplit));
252
253 i = 0;
254 while ((fname = strsep(&str, ":")) != NULL) {
255
256 if (!strlen(fname))
257 break;
258
259 /*
260 * grow struct buffer, if needed
261 */
262 if (i == td->o.ignore_error_nr[etype]) {
263 td->o.ignore_error_nr[etype] <<= 1;
264 error = realloc(error, td->o.ignore_error_nr[etype]
265 * sizeof(int));
266 }
267 if (fname[0] == 'E') {
268 error[i] = str2error(fname);
269 } else {
270 error[i] = atoi(fname);
271 if (error[i] < 0)
272 error[i] = error[i];
273 }
274 if (!error[i]) {
275 log_err("Unknown error %s, please use number value \n",
276 fname);
277 free(error);
278 return 1;
279 }
280 i++;
281 }
282 if (i) {
283 td->o.continue_on_error |= 1 << etype;
284 td->o.ignore_error_nr[etype] = i;
285 td->o.ignore_error[etype] = error;
286 }
287 return 0;
288
289}
290
291static int str_ignore_error_cb(void *data, const char *input)
292{
293 struct thread_data *td = data;
294 char *str, *p, *n;
295 int type = 0, ret = 1;
296
297 if (parse_dryrun())
298 return 0;
299
300 p = str = strdup(input);
301
302 strip_blank_front(&str);
303 strip_blank_end(str);
304
305 while (p) {
306 n = strchr(p, ',');
307 if (n)
308 *n++ = '\0';
309 ret = ignore_error_type(td, type, p);
310 if (ret)
311 break;
312 p = n;
313 type++;
314 }
315 free(str);
316 return ret;
317}
318
319static int str_rw_cb(void *data, const char *str)
320{
321 struct thread_data *td = data;
322 struct thread_options *o = &td->o;
323 char *nr = get_opt_postfix(str);
324
325 if (parse_dryrun())
326 return 0;
327
328 o->ddir_seq_nr = 1;
329 o->ddir_seq_add = 0;
330
331 if (!nr)
332 return 0;
333
334 if (td_random(td))
335 o->ddir_seq_nr = atoi(nr);
336 else {
337 long long val;
338
339 if (str_to_decimal(nr, &val, 1, o)) {
340 log_err("fio: rw postfix parsing failed\n");
341 free(nr);
342 return 1;
343 }
344
345 o->ddir_seq_add = val;
346 }
347
348 free(nr);
349 return 0;
350}
351
352static int str_mem_cb(void *data, const char *mem)
353{
354 struct thread_data *td = data;
355
356 if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP)
357 td->o.mmapfile = get_opt_postfix(mem);
358
359 return 0;
360}
361
362static int fio_clock_source_cb(void *data, const char *str)
363{
364 struct thread_data *td = data;
365
366 fio_clock_source = td->o.clocksource;
367 fio_clock_source_set = 1;
368 fio_clock_init();
369 return 0;
370}
371
372static int str_rwmix_read_cb(void *data, unsigned long long *val)
373{
374 struct thread_data *td = data;
375
376 td->o.rwmix[DDIR_READ] = *val;
377 td->o.rwmix[DDIR_WRITE] = 100 - *val;
378 return 0;
379}
380
381static int str_rwmix_write_cb(void *data, unsigned long long *val)
382{
383 struct thread_data *td = data;
384
385 td->o.rwmix[DDIR_WRITE] = *val;
386 td->o.rwmix[DDIR_READ] = 100 - *val;
387 return 0;
388}
389
390static int str_exitall_cb(void)
391{
392 exitall_on_terminate = 1;
393 return 0;
394}
395
396#ifdef FIO_HAVE_CPU_AFFINITY
397static int str_cpumask_cb(void *data, unsigned long long *val)
398{
399 struct thread_data *td = data;
400 unsigned int i;
401 long max_cpu;
402 int ret;
403
404 if (parse_dryrun())
405 return 0;
406
407 ret = fio_cpuset_init(&td->o.cpumask);
408 if (ret < 0) {
409 log_err("fio: cpuset_init failed\n");
410 td_verror(td, ret, "fio_cpuset_init");
411 return 1;
412 }
413
414 max_cpu = cpus_online();
415
416 for (i = 0; i < sizeof(int) * 8; i++) {
417 if ((1 << i) & *val) {
418 if (i > max_cpu) {
419 log_err("fio: CPU %d too large (max=%ld)\n", i,
420 max_cpu);
421 return 1;
422 }
423 dprint(FD_PARSE, "set cpu allowed %d\n", i);
424 fio_cpu_set(&td->o.cpumask, i);
425 }
426 }
427
428 td->o.cpumask_set = 1;
429 return 0;
430}
431
432static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
433 const char *input)
434{
435 char *cpu, *str, *p;
436 long max_cpu;
437 int ret = 0;
438
439 ret = fio_cpuset_init(mask);
440 if (ret < 0) {
441 log_err("fio: cpuset_init failed\n");
442 td_verror(td, ret, "fio_cpuset_init");
443 return 1;
444 }
445
446 p = str = strdup(input);
447
448 strip_blank_front(&str);
449 strip_blank_end(str);
450
451 max_cpu = cpus_online();
452
453 while ((cpu = strsep(&str, ",")) != NULL) {
454 char *str2, *cpu2;
455 int icpu, icpu2;
456
457 if (!strlen(cpu))
458 break;
459
460 str2 = cpu;
461 icpu2 = -1;
462 while ((cpu2 = strsep(&str2, "-")) != NULL) {
463 if (!strlen(cpu2))
464 break;
465
466 icpu2 = atoi(cpu2);
467 }
468
469 icpu = atoi(cpu);
470 if (icpu2 == -1)
471 icpu2 = icpu;
472 while (icpu <= icpu2) {
473 if (icpu >= FIO_MAX_CPUS) {
474 log_err("fio: your OS only supports up to"
475 " %d CPUs\n", (int) FIO_MAX_CPUS);
476 ret = 1;
477 break;
478 }
479 if (icpu > max_cpu) {
480 log_err("fio: CPU %d too large (max=%ld)\n",
481 icpu, max_cpu);
482 ret = 1;
483 break;
484 }
485
486 dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
487 fio_cpu_set(mask, icpu);
488 icpu++;
489 }
490 if (ret)
491 break;
492 }
493
494 free(p);
495 if (!ret)
496 td->o.cpumask_set = 1;
497 return ret;
498}
499
500static int str_cpus_allowed_cb(void *data, const char *input)
501{
502 struct thread_data *td = data;
503 int ret;
504
505 if (parse_dryrun())
506 return 0;
507
508 ret = set_cpus_allowed(td, &td->o.cpumask, input);
509 if (!ret)
510 td->o.cpumask_set = 1;
511
512 return ret;
513}
514
515static int str_verify_cpus_allowed_cb(void *data, const char *input)
516{
517 struct thread_data *td = data;
518 int ret;
519
520 ret = set_cpus_allowed(td, &td->o.verify_cpumask, input);
521 if (!ret)
522 td->o.verify_cpumask_set = 1;
523
524 return ret;
525}
526#endif
527
528#ifdef CONFIG_LIBNUMA
529static int str_numa_cpunodes_cb(void *data, char *input)
530{
531 struct thread_data *td = data;
532
533 if (parse_dryrun())
534 return 0;
535
536 /* numa_parse_nodestring() parses a character string list
537 * of nodes into a bit mask. The bit mask is allocated by
538 * numa_allocate_nodemask(), so it should be freed by
539 * numa_free_nodemask().
540 */
541 td->o.numa_cpunodesmask = numa_parse_nodestring(input);
542 if (td->o.numa_cpunodesmask == NULL) {
543 log_err("fio: numa_parse_nodestring failed\n");
544 td_verror(td, 1, "str_numa_cpunodes_cb");
545 return 1;
546 }
547
548 td->o.numa_cpumask_set = 1;
549 return 0;
550}
551
552static int str_numa_mpol_cb(void *data, char *input)
553{
554 struct thread_data *td = data;
555 const char * const policy_types[] =
556 { "default", "prefer", "bind", "interleave", "local", NULL };
557 int i;
558 char *nodelist;
559
560 if (parse_dryrun())
561 return 0;
562
563 nodelist = strchr(input, ':');
564 if (nodelist) {
565 /* NUL-terminate mode */
566 *nodelist++ = '\0';
567 }
568
569 for (i = 0; i <= MPOL_LOCAL; i++) {
570 if (!strcmp(input, policy_types[i])) {
571 td->o.numa_mem_mode = i;
572 break;
573 }
574 }
575 if (i > MPOL_LOCAL) {
576 log_err("fio: memory policy should be: default, prefer, bind, interleave, local\n");
577 goto out;
578 }
579
580 switch (td->o.numa_mem_mode) {
581 case MPOL_PREFERRED:
582 /*
583 * Insist on a nodelist of one node only
584 */
585 if (nodelist) {
586 char *rest = nodelist;
587 while (isdigit(*rest))
588 rest++;
589 if (*rest) {
590 log_err("fio: one node only for \'prefer\'\n");
591 goto out;
592 }
593 } else {
594 log_err("fio: one node is needed for \'prefer\'\n");
595 goto out;
596 }
597 break;
598 case MPOL_INTERLEAVE:
599 /*
600 * Default to online nodes with memory if no nodelist
601 */
602 if (!nodelist)
603 nodelist = strdup("all");
604 break;
605 case MPOL_LOCAL:
606 case MPOL_DEFAULT:
607 /*
608 * Don't allow a nodelist
609 */
610 if (nodelist) {
611 log_err("fio: NO nodelist for \'local\'\n");
612 goto out;
613 }
614 break;
615 case MPOL_BIND:
616 /*
617 * Insist on a nodelist
618 */
619 if (!nodelist) {
620 log_err("fio: a nodelist is needed for \'bind\'\n");
621 goto out;
622 }
623 break;
624 }
625
626
627 /* numa_parse_nodestring() parses a character string list
628 * of nodes into a bit mask. The bit mask is allocated by
629 * numa_allocate_nodemask(), so it should be freed by
630 * numa_free_nodemask().
631 */
632 switch (td->o.numa_mem_mode) {
633 case MPOL_PREFERRED:
634 td->o.numa_mem_prefer_node = atoi(nodelist);
635 break;
636 case MPOL_INTERLEAVE:
637 case MPOL_BIND:
638 td->o.numa_memnodesmask = numa_parse_nodestring(nodelist);
639 if (td->o.numa_memnodesmask == NULL) {
640 log_err("fio: numa_parse_nodestring failed\n");
641 td_verror(td, 1, "str_numa_memnodes_cb");
642 return 1;
643 }
644 break;
645 case MPOL_LOCAL:
646 case MPOL_DEFAULT:
647 default:
648 break;
649 }
650
651 td->o.numa_memmask_set = 1;
652 return 0;
653
654out:
655 return 1;
656}
657#endif
658
659static int str_fst_cb(void *data, const char *str)
660{
661 struct thread_data *td = data;
662 char *nr = get_opt_postfix(str);
663
664 td->file_service_nr = 1;
665 if (nr) {
666 td->file_service_nr = atoi(nr);
667 free(nr);
668 }
669
670 return 0;
671}
672
673#ifdef CONFIG_SYNC_FILE_RANGE
674static int str_sfr_cb(void *data, const char *str)
675{
676 struct thread_data *td = data;
677 char *nr = get_opt_postfix(str);
678
679 td->sync_file_range_nr = 1;
680 if (nr) {
681 td->sync_file_range_nr = atoi(nr);
682 free(nr);
683 }
684
685 return 0;
686}
687#endif
688
689static int str_random_distribution_cb(void *data, const char *str)
690{
691 struct thread_data *td = data;
692 double val;
693 char *nr;
694
695 if (parse_dryrun())
696 return 0;
697
698 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
699 val = 1.1;
700 else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
701 val = 0.2;
702 else
703 return 0;
704
705 nr = get_opt_postfix(str);
706 if (nr && !str_to_float(nr, &val)) {
707 log_err("fio: random postfix parsing failed\n");
708 free(nr);
709 return 1;
710 }
711
712 free(nr);
713
714 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
715 if (val == 1.00) {
716 log_err("fio: zipf theta must different than 1.0\n");
717 return 1;
718 }
719 td->o.zipf_theta.u.f = val;
720 } else {
721 if (val <= 0.00 || val >= 1.00) {
722 log_err("fio: pareto input out of range (0 < input < 1.0)\n");
723 return 1;
724 }
725 td->o.pareto_h.u.f = val;
726 }
727
728 return 0;
729}
730
731/*
732 * Return next file in the string. Files are separated with ':'. If the ':'
733 * is escaped with a '\', then that ':' is part of the filename and does not
734 * indicate a new file.
735 */
736static char *get_next_file_name(char **ptr)
737{
738 char *str = *ptr;
739 char *p, *start;
740
741 if (!str || !strlen(str))
742 return NULL;
743
744 start = str;
745 do {
746 /*
747 * No colon, we are done
748 */
749 p = strchr(str, ':');
750 if (!p) {
751 *ptr = NULL;
752 break;
753 }
754
755 /*
756 * We got a colon, but it's the first character. Skip and
757 * continue
758 */
759 if (p == start) {
760 str = ++start;
761 continue;
762 }
763
764 if (*(p - 1) != '\\') {
765 *p = '\0';
766 *ptr = p + 1;
767 break;
768 }
769
770 memmove(p - 1, p, strlen(p) + 1);
771 str = p;
772 } while (1);
773
774 return start;
775}
776
777static int str_filename_cb(void *data, const char *input)
778{
779 struct thread_data *td = data;
780 char *fname, *str, *p;
781
782 p = str = strdup(input);
783
784 strip_blank_front(&str);
785 strip_blank_end(str);
786
787 if (!td->files_index)
788 td->o.nr_files = 0;
789
790 while ((fname = get_next_file_name(&str)) != NULL) {
791 if (!strlen(fname))
792 break;
793 add_file(td, fname);
794 td->o.nr_files++;
795 }
796
797 free(p);
798 return 0;
799}
800
801static int str_directory_cb(void *data, const char fio_unused *str)
802{
803 struct thread_data *td = data;
804 struct stat sb;
805
806 if (parse_dryrun())
807 return 0;
808
809 if (lstat(td->o.directory, &sb) < 0) {
810 int ret = errno;
811
812 log_err("fio: %s is not a directory\n", td->o.directory);
813 td_verror(td, ret, "lstat");
814 return 1;
815 }
816 if (!S_ISDIR(sb.st_mode)) {
817 log_err("fio: %s is not a directory\n", td->o.directory);
818 return 1;
819 }
820
821 return 0;
822}
823
824static int str_opendir_cb(void *data, const char fio_unused *str)
825{
826 struct thread_data *td = data;
827
828 if (parse_dryrun())
829 return 0;
830
831 if (!td->files_index)
832 td->o.nr_files = 0;
833
834 return add_dir_files(td, td->o.opendir);
835}
836
837static int str_verify_pattern_cb(void *data, const char *input)
838{
839 struct thread_data *td = data;
840 long off;
841 int i = 0, j = 0, len, k, base = 10, pattern_length;
842 char *loc1, *loc2;
843
844 loc1 = strstr(input, "0x");
845 loc2 = strstr(input, "0X");
846 if (loc1 || loc2)
847 base = 16;
848 off = strtol(input, NULL, base);
849 if (off != LONG_MAX || errno != ERANGE) {
850 while (off) {
851 td->o.verify_pattern[i] = off & 0xff;
852 off >>= 8;
853 i++;
854 }
855 } else {
856 len = strlen(input);
857 k = len - 1;
858 if (base == 16) {
859 if (loc1)
860 j = loc1 - input + 2;
861 else
862 j = loc2 - input + 2;
863 } else
864 return 1;
865 if (len - j < MAX_PATTERN_SIZE * 2) {
866 while (k >= j) {
867 off = converthexchartoint(input[k--]);
868 if (k >= j)
869 off += (converthexchartoint(input[k--])
870 * 16);
871 td->o.verify_pattern[i++] = (char) off;
872 }
873 }
874 }
875
876 /*
877 * Fill the pattern all the way to the end. This greatly reduces
878 * the number of memcpy's we have to do when verifying the IO.
879 */
880 pattern_length = i;
881 while (i > 1 && i * 2 <= MAX_PATTERN_SIZE) {
882 memcpy(&td->o.verify_pattern[i], &td->o.verify_pattern[0], i);
883 i *= 2;
884 }
885
886 /*
887 * Fill remainder, if the pattern multiple ends up not being
888 * MAX_PATTERN_SIZE.
889 */
890 while (i > 1 && i < MAX_PATTERN_SIZE) {
891 unsigned int b = min(pattern_length, MAX_PATTERN_SIZE - i);
892
893 memcpy(&td->o.verify_pattern[i], &td->o.verify_pattern[0], b);
894 i += b;
895 }
896
897 if (i == 1) {
898 /*
899 * The code in verify_io_u_pattern assumes a single byte pattern
900 * fills the whole verify pattern buffer.
901 */
902 memset(td->o.verify_pattern, td->o.verify_pattern[0],
903 MAX_PATTERN_SIZE);
904 }
905
906 td->o.verify_pattern_bytes = i;
907
908 /*
909 * VERIFY_META could already be set
910 */
911 if (td->o.verify == VERIFY_NONE)
912 td->o.verify = VERIFY_PATTERN;
913
914 return 0;
915}
916
917static int str_gtod_reduce_cb(void *data, int *il)
918{
919 struct thread_data *td = data;
920 int val = *il;
921
922 td->o.disable_lat = !!val;
923 td->o.disable_clat = !!val;
924 td->o.disable_slat = !!val;
925 td->o.disable_bw = !!val;
926 td->o.clat_percentiles = !val;
927 if (val)
928 td->tv_cache_mask = 63;
929
930 return 0;
931}
932
933static int str_gtod_cpu_cb(void *data, long long *il)
934{
935 struct thread_data *td = data;
936 int val = *il;
937
938 td->o.gtod_cpu = val;
939 td->o.gtod_offload = 1;
940 return 0;
941}
942
943static int str_size_cb(void *data, unsigned long long *__val)
944{
945 struct thread_data *td = data;
946 unsigned long long v = *__val;
947
948 if (parse_is_percent(v)) {
949 td->o.size = 0;
950 td->o.size_percent = -1ULL - v;
951 } else
952 td->o.size = v;
953
954 return 0;
955}
956
957static int rw_verify(struct fio_option *o, void *data)
958{
959 struct thread_data *td = data;
960
961 if (read_only && td_write(td)) {
962 log_err("fio: job <%s> has write bit set, but fio is in"
963 " read-only mode\n", td->o.name);
964 return 1;
965 }
966
967 return 0;
968}
969
970static int gtod_cpu_verify(struct fio_option *o, void *data)
971{
972#ifndef FIO_HAVE_CPU_AFFINITY
973 struct thread_data *td = data;
974
975 if (td->o.gtod_cpu) {
976 log_err("fio: platform must support CPU affinity for"
977 "gettimeofday() offloading\n");
978 return 1;
979 }
980#endif
981
982 return 0;
983}
984
985/*
986 * Option grouping
987 */
988static struct opt_group fio_opt_groups[] = {
989 {
990 .name = "General",
991 .mask = FIO_OPT_C_GENERAL,
992 },
993 {
994 .name = "I/O",
995 .mask = FIO_OPT_C_IO,
996 },
997 {
998 .name = "File",
999 .mask = FIO_OPT_C_FILE,
1000 },
1001 {
1002 .name = "Statistics",
1003 .mask = FIO_OPT_C_STAT,
1004 },
1005 {
1006 .name = "Logging",
1007 .mask = FIO_OPT_C_LOG,
1008 },
1009 {
1010 .name = "Profiles",
1011 .mask = FIO_OPT_C_PROFILE,
1012 },
1013 {
1014 .name = NULL,
1015 },
1016};
1017
1018static struct opt_group *__opt_group_from_mask(struct opt_group *ogs, unsigned int *mask,
1019 unsigned int inv_mask)
1020{
1021 struct opt_group *og;
1022 int i;
1023
1024 if (*mask == inv_mask || !*mask)
1025 return NULL;
1026
1027 for (i = 0; ogs[i].name; i++) {
1028 og = &ogs[i];
1029
1030 if (*mask & og->mask) {
1031 *mask &= ~(og->mask);
1032 return og;
1033 }
1034 }
1035
1036 return NULL;
1037}
1038
1039struct opt_group *opt_group_from_mask(unsigned int *mask)
1040{
1041 return __opt_group_from_mask(fio_opt_groups, mask, FIO_OPT_C_INVALID);
1042}
1043
1044static struct opt_group fio_opt_cat_groups[] = {
1045 {
1046 .name = "Rate",
1047 .mask = FIO_OPT_G_RATE,
1048 },
1049 {
1050 .name = "Zone",
1051 .mask = FIO_OPT_G_ZONE,
1052 },
1053 {
1054 .name = "Read/write mix",
1055 .mask = FIO_OPT_G_RWMIX,
1056 },
1057 {
1058 .name = "Verify",
1059 .mask = FIO_OPT_G_VERIFY,
1060 },
1061 {
1062 .name = "Trim",
1063 .mask = FIO_OPT_G_TRIM,
1064 },
1065 {
1066 .name = "I/O Logging",
1067 .mask = FIO_OPT_G_IOLOG,
1068 },
1069 {
1070 .name = "I/O Depth",
1071 .mask = FIO_OPT_G_IO_DEPTH,
1072 },
1073 {
1074 .name = "I/O Flow",
1075 .mask = FIO_OPT_G_IO_FLOW,
1076 },
1077 {
1078 .name = "Description",
1079 .mask = FIO_OPT_G_DESC,
1080 },
1081 {
1082 .name = "Filename",
1083 .mask = FIO_OPT_G_FILENAME,
1084 },
1085 {
1086 .name = "General I/O",
1087 .mask = FIO_OPT_G_IO_BASIC,
1088 },
1089 {
1090 .name = "Cgroups",
1091 .mask = FIO_OPT_G_CGROUP,
1092 },
1093 {
1094 .name = "Runtime",
1095 .mask = FIO_OPT_G_RUNTIME,
1096 },
1097 {
1098 .name = "Process",
1099 .mask = FIO_OPT_G_PROCESS,
1100 },
1101 {
1102 .name = "Job credentials / priority",
1103 .mask = FIO_OPT_G_CRED,
1104 },
1105 {
1106 .name = "Clock settings",
1107 .mask = FIO_OPT_G_CLOCK,
1108 },
1109 {
1110 .name = "I/O Type",
1111 .mask = FIO_OPT_G_IO_TYPE,
1112 },
1113 {
1114 .name = "I/O Thinktime",
1115 .mask = FIO_OPT_G_THINKTIME,
1116 },
1117 {
1118 .name = "Randomizations",
1119 .mask = FIO_OPT_G_RANDOM,
1120 },
1121 {
1122 .name = "I/O buffers",
1123 .mask = FIO_OPT_G_IO_BUF,
1124 },
1125 {
1126 .name = "Tiobench profile",
1127 .mask = FIO_OPT_G_TIOBENCH,
1128 },
1129
1130 {
1131 .name = NULL,
1132 }
1133};
1134
1135struct opt_group *opt_group_cat_from_mask(unsigned int *mask)
1136{
1137 return __opt_group_from_mask(fio_opt_cat_groups, mask, FIO_OPT_G_INVALID);
1138}
1139
1140/*
1141 * Map of job/command line options
1142 */
1143struct fio_option fio_options[FIO_MAX_OPTS] = {
1144 {
1145 .name = "description",
1146 .lname = "Description of job",
1147 .type = FIO_OPT_STR_STORE,
1148 .off1 = td_var_offset(description),
1149 .help = "Text job description",
1150 .category = FIO_OPT_C_GENERAL,
1151 .group = FIO_OPT_G_DESC,
1152 },
1153 {
1154 .name = "name",
1155 .lname = "Job name",
1156 .type = FIO_OPT_STR_STORE,
1157 .off1 = td_var_offset(name),
1158 .help = "Name of this job",
1159 .category = FIO_OPT_C_GENERAL,
1160 .group = FIO_OPT_G_DESC,
1161 },
1162 {
1163 .name = "filename",
1164 .lname = "Filename(s)",
1165 .type = FIO_OPT_STR_STORE,
1166 .off1 = td_var_offset(filename),
1167 .cb = str_filename_cb,
1168 .prio = -1, /* must come after "directory" */
1169 .help = "File(s) to use for the workload",
1170 .category = FIO_OPT_C_FILE,
1171 .group = FIO_OPT_G_FILENAME,
1172 },
1173 {
1174 .name = "directory",
1175 .lname = "Directory",
1176 .type = FIO_OPT_STR_STORE,
1177 .off1 = td_var_offset(directory),
1178 .cb = str_directory_cb,
1179 .help = "Directory to store files in",
1180 .category = FIO_OPT_C_FILE,
1181 .group = FIO_OPT_G_FILENAME,
1182 },
1183 {
1184 .name = "filename_format",
1185 .type = FIO_OPT_STR_STORE,
1186 .off1 = td_var_offset(filename_format),
1187 .prio = -1, /* must come after "directory" */
1188 .help = "Override default $jobname.$jobnum.$filenum naming",
1189 .def = "$jobname.$jobnum.$filenum",
1190 .category = FIO_OPT_C_FILE,
1191 .group = FIO_OPT_G_FILENAME,
1192 },
1193 {
1194 .name = "lockfile",
1195 .lname = "Lockfile",
1196 .type = FIO_OPT_STR,
1197 .off1 = td_var_offset(file_lock_mode),
1198 .help = "Lock file when doing IO to it",
1199 .parent = "filename",
1200 .hide = 0,
1201 .def = "none",
1202 .category = FIO_OPT_C_FILE,
1203 .group = FIO_OPT_G_FILENAME,
1204 .posval = {
1205 { .ival = "none",
1206 .oval = FILE_LOCK_NONE,
1207 .help = "No file locking",
1208 },
1209 { .ival = "exclusive",
1210 .oval = FILE_LOCK_EXCLUSIVE,
1211 .help = "Exclusive file lock",
1212 },
1213 {
1214 .ival = "readwrite",
1215 .oval = FILE_LOCK_READWRITE,
1216 .help = "Read vs write lock",
1217 },
1218 },
1219 },
1220 {
1221 .name = "opendir",
1222 .lname = "Open directory",
1223 .type = FIO_OPT_STR_STORE,
1224 .off1 = td_var_offset(opendir),
1225 .cb = str_opendir_cb,
1226 .help = "Recursively add files from this directory and down",
1227 .category = FIO_OPT_C_FILE,
1228 .group = FIO_OPT_G_FILENAME,
1229 },
1230 {
1231 .name = "rw",
1232 .lname = "Read/write",
1233 .alias = "readwrite",
1234 .type = FIO_OPT_STR,
1235 .cb = str_rw_cb,
1236 .off1 = td_var_offset(td_ddir),
1237 .help = "IO direction",
1238 .def = "read",
1239 .verify = rw_verify,
1240 .category = FIO_OPT_C_IO,
1241 .group = FIO_OPT_G_IO_BASIC,
1242 .posval = {
1243 { .ival = "read",
1244 .oval = TD_DDIR_READ,
1245 .help = "Sequential read",
1246 },
1247 { .ival = "write",
1248 .oval = TD_DDIR_WRITE,
1249 .help = "Sequential write",
1250 },
1251 { .ival = "trim",
1252 .oval = TD_DDIR_TRIM,
1253 .help = "Sequential trim",
1254 },
1255 { .ival = "randread",
1256 .oval = TD_DDIR_RANDREAD,
1257 .help = "Random read",
1258 },
1259 { .ival = "randwrite",
1260 .oval = TD_DDIR_RANDWRITE,
1261 .help = "Random write",
1262 },
1263 { .ival = "randtrim",
1264 .oval = TD_DDIR_RANDTRIM,
1265 .help = "Random trim",
1266 },
1267 { .ival = "rw",
1268 .oval = TD_DDIR_RW,
1269 .help = "Sequential read and write mix",
1270 },
1271 { .ival = "readwrite",
1272 .oval = TD_DDIR_RW,
1273 .help = "Sequential read and write mix",
1274 },
1275 { .ival = "randrw",
1276 .oval = TD_DDIR_RANDRW,
1277 .help = "Random read and write mix"
1278 },
1279 },
1280 },
1281 {
1282 .name = "rw_sequencer",
1283 .lname = "RW Sequencer",
1284 .type = FIO_OPT_STR,
1285 .off1 = td_var_offset(rw_seq),
1286 .help = "IO offset generator modifier",
1287 .def = "sequential",
1288 .category = FIO_OPT_C_IO,
1289 .group = FIO_OPT_G_IO_BASIC,
1290 .posval = {
1291 { .ival = "sequential",
1292 .oval = RW_SEQ_SEQ,
1293 .help = "Generate sequential offsets",
1294 },
1295 { .ival = "identical",
1296 .oval = RW_SEQ_IDENT,
1297 .help = "Generate identical offsets",
1298 },
1299 },
1300 },
1301
1302 {
1303 .name = "ioengine",
1304 .lname = "IO Engine",
1305 .type = FIO_OPT_STR_STORE,
1306 .off1 = td_var_offset(ioengine),
1307 .help = "IO engine to use",
1308 .def = FIO_PREFERRED_ENGINE,
1309 .category = FIO_OPT_C_IO,
1310 .group = FIO_OPT_G_IO_BASIC,
1311 .posval = {
1312 { .ival = "sync",
1313 .help = "Use read/write",
1314 },
1315 { .ival = "psync",
1316 .help = "Use pread/pwrite",
1317 },
1318 { .ival = "vsync",
1319 .help = "Use readv/writev",
1320 },
1321#ifdef CONFIG_PWRITEV
1322 { .ival = "pvsync",
1323 .help = "Use preadv/pwritev",
1324 },
1325#endif
1326#ifdef CONFIG_LIBAIO
1327 { .ival = "libaio",
1328 .help = "Linux native asynchronous IO",
1329 },
1330#endif
1331#ifdef CONFIG_POSIXAIO
1332 { .ival = "posixaio",
1333 .help = "POSIX asynchronous IO",
1334 },
1335#endif
1336#ifdef CONFIG_SOLARISAIO
1337 { .ival = "solarisaio",
1338 .help = "Solaris native asynchronous IO",
1339 },
1340#endif
1341#ifdef CONFIG_WINDOWSAIO
1342 { .ival = "windowsaio",
1343 .help = "Windows native asynchronous IO"
1344 },
1345#endif
1346 { .ival = "mmap",
1347 .help = "Memory mapped IO"
1348 },
1349#ifdef CONFIG_LINUX_SPLICE
1350 { .ival = "splice",
1351 .help = "splice/vmsplice based IO",
1352 },
1353 { .ival = "netsplice",
1354 .help = "splice/vmsplice to/from the network",
1355 },
1356#endif
1357#ifdef FIO_HAVE_SGIO
1358 { .ival = "sg",
1359 .help = "SCSI generic v3 IO",
1360 },
1361#endif
1362 { .ival = "null",
1363 .help = "Testing engine (no data transfer)",
1364 },
1365 { .ival = "net",
1366 .help = "Network IO",
1367 },
1368 { .ival = "cpuio",
1369 .help = "CPU cycle burner engine",
1370 },
1371#ifdef CONFIG_GUASI
1372 { .ival = "guasi",
1373 .help = "GUASI IO engine",
1374 },
1375#endif
1376#ifdef FIO_HAVE_BINJECT
1377 { .ival = "binject",
1378 .help = "binject direct inject block engine",
1379 },
1380#endif
1381#ifdef CONFIG_RDMA
1382 { .ival = "rdma",
1383 .help = "RDMA IO engine",
1384 },
1385#endif
1386#ifdef CONFIG_FUSION_AW
1387 { .ival = "fusion-aw-sync",
1388 .help = "Fusion-io atomic write engine",
1389 },
1390#endif
1391#ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
1392 { .ival = "e4defrag",
1393 .help = "ext4 defrag engine",
1394 },
1395#endif
1396#ifdef CONFIG_LINUX_FALLOCATE
1397 { .ival = "falloc",
1398 .help = "fallocate() file based engine",
1399 },
1400#endif
1401 { .ival = "external",
1402 .help = "Load external engine (append name)",
1403 },
1404 },
1405 },
1406 {
1407 .name = "iodepth",
1408 .lname = "IO Depth",
1409 .type = FIO_OPT_INT,
1410 .off1 = td_var_offset(iodepth),
1411 .help = "Number of IO buffers to keep in flight",
1412 .minval = 1,
1413 .interval = 1,
1414 .def = "1",
1415 .category = FIO_OPT_C_IO,
1416 .group = FIO_OPT_G_IO_BASIC,
1417 },
1418 {
1419 .name = "iodepth_batch",
1420 .lname = "IO Depth batch",
1421 .alias = "iodepth_batch_submit",
1422 .type = FIO_OPT_INT,
1423 .off1 = td_var_offset(iodepth_batch),
1424 .help = "Number of IO buffers to submit in one go",
1425 .parent = "iodepth",
1426 .hide = 1,
1427 .minval = 1,
1428 .interval = 1,
1429 .def = "1",
1430 .category = FIO_OPT_C_IO,
1431 .group = FIO_OPT_G_IO_BASIC,
1432 },
1433 {
1434 .name = "iodepth_batch_complete",
1435 .lname = "IO Depth batch complete",
1436 .type = FIO_OPT_INT,
1437 .off1 = td_var_offset(iodepth_batch_complete),
1438 .help = "Number of IO buffers to retrieve in one go",
1439 .parent = "iodepth",
1440 .hide = 1,
1441 .minval = 0,
1442 .interval = 1,
1443 .def = "1",
1444 .category = FIO_OPT_C_IO,
1445 .group = FIO_OPT_G_IO_BASIC,
1446 },
1447 {
1448 .name = "iodepth_low",
1449 .lname = "IO Depth batch low",
1450 .type = FIO_OPT_INT,
1451 .off1 = td_var_offset(iodepth_low),
1452 .help = "Low water mark for queuing depth",
1453 .parent = "iodepth",
1454 .hide = 1,
1455 .interval = 1,
1456 .category = FIO_OPT_C_IO,
1457 .group = FIO_OPT_G_IO_BASIC,
1458 },
1459 {
1460 .name = "size",
1461 .lname = "Size",
1462 .type = FIO_OPT_STR_VAL,
1463 .cb = str_size_cb,
1464 .help = "Total size of device or files",
1465 .interval = 1024 * 1024,
1466 .category = FIO_OPT_C_IO,
1467 .group = FIO_OPT_G_INVALID,
1468 },
1469 {
1470 .name = "fill_device",
1471 .lname = "Fill device",
1472 .alias = "fill_fs",
1473 .type = FIO_OPT_BOOL,
1474 .off1 = td_var_offset(fill_device),
1475 .help = "Write until an ENOSPC error occurs",
1476 .def = "0",
1477 .category = FIO_OPT_C_FILE,
1478 .group = FIO_OPT_G_INVALID,
1479 },
1480 {
1481 .name = "filesize",
1482 .lname = "File size",
1483 .type = FIO_OPT_STR_VAL,
1484 .off1 = td_var_offset(file_size_low),
1485 .off2 = td_var_offset(file_size_high),
1486 .minval = 1,
1487 .help = "Size of individual files",
1488 .interval = 1024 * 1024,
1489 .category = FIO_OPT_C_FILE,
1490 .group = FIO_OPT_G_INVALID,
1491 },
1492 {
1493 .name = "offset",
1494 .lname = "IO offset",
1495 .alias = "fileoffset",
1496 .type = FIO_OPT_STR_VAL,
1497 .off1 = td_var_offset(start_offset),
1498 .help = "Start IO from this offset",
1499 .def = "0",
1500 .interval = 1024 * 1024,
1501 .category = FIO_OPT_C_IO,
1502 .group = FIO_OPT_G_INVALID,
1503 },
1504 {
1505 .name = "offset_increment",
1506 .lname = "IO offset increment",
1507 .type = FIO_OPT_STR_VAL,
1508 .off1 = td_var_offset(offset_increment),
1509 .help = "What is the increment from one offset to the next",
1510 .parent = "offset",
1511 .hide = 1,
1512 .def = "0",
1513 .interval = 1024 * 1024,
1514 .category = FIO_OPT_C_IO,
1515 .group = FIO_OPT_G_INVALID,
1516 },
1517 {
1518 .name = "number_ios",
1519 .lname = "Number of IOs to perform",
1520 .type = FIO_OPT_STR_VAL,
1521 .off1 = td_var_offset(number_ios),
1522 .help = "Force job completion of this number of IOs",
1523 .def = "0",
1524 .category = FIO_OPT_C_IO,
1525 .group = FIO_OPT_G_INVALID,
1526 },
1527 {
1528 .name = "bs",
1529 .lname = "Block size",
1530 .alias = "blocksize",
1531 .type = FIO_OPT_INT,
1532 .off1 = td_var_offset(bs[DDIR_READ]),
1533 .off2 = td_var_offset(bs[DDIR_WRITE]),
1534 .off3 = td_var_offset(bs[DDIR_TRIM]),
1535 .minval = 1,
1536 .help = "Block size unit",
1537 .def = "4k",
1538 .parent = "rw",
1539 .hide = 1,
1540 .interval = 512,
1541 .category = FIO_OPT_C_IO,
1542 .group = FIO_OPT_G_INVALID,
1543 },
1544 {
1545 .name = "ba",
1546 .lname = "Block size align",
1547 .alias = "blockalign",
1548 .type = FIO_OPT_INT,
1549 .off1 = td_var_offset(ba[DDIR_READ]),
1550 .off2 = td_var_offset(ba[DDIR_WRITE]),
1551 .off3 = td_var_offset(ba[DDIR_TRIM]),
1552 .minval = 1,
1553 .help = "IO block offset alignment",
1554 .parent = "rw",
1555 .hide = 1,
1556 .interval = 512,
1557 .category = FIO_OPT_C_IO,
1558 .group = FIO_OPT_G_INVALID,
1559 },
1560 {
1561 .name = "bsrange",
1562 .lname = "Block size range",
1563 .alias = "blocksize_range",
1564 .type = FIO_OPT_RANGE,
1565 .off1 = td_var_offset(min_bs[DDIR_READ]),
1566 .off2 = td_var_offset(max_bs[DDIR_READ]),
1567 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
1568 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
1569 .off5 = td_var_offset(min_bs[DDIR_TRIM]),
1570 .off6 = td_var_offset(max_bs[DDIR_TRIM]),
1571 .minval = 1,
1572 .help = "Set block size range (in more detail than bs)",
1573 .parent = "rw",
1574 .hide = 1,
1575 .interval = 4096,
1576 .category = FIO_OPT_C_IO,
1577 .group = FIO_OPT_G_INVALID,
1578 },
1579 {
1580 .name = "bssplit",
1581 .lname = "Block size split",
1582 .type = FIO_OPT_STR,
1583 .cb = str_bssplit_cb,
1584 .help = "Set a specific mix of block sizes",
1585 .parent = "rw",
1586 .hide = 1,
1587 .category = FIO_OPT_C_IO,
1588 .group = FIO_OPT_G_INVALID,
1589 },
1590 {
1591 .name = "bs_unaligned",
1592 .lname = "Block size unaligned",
1593 .alias = "blocksize_unaligned",
1594 .type = FIO_OPT_STR_SET,
1595 .off1 = td_var_offset(bs_unaligned),
1596 .help = "Don't sector align IO buffer sizes",
1597 .parent = "rw",
1598 .hide = 1,
1599 .category = FIO_OPT_C_IO,
1600 .group = FIO_OPT_G_INVALID,
1601 },
1602 {
1603 .name = "bs_is_seq_rand",
1604 .lname = "Block size division is seq/random (not read/write)",
1605 .type = FIO_OPT_BOOL,
1606 .off1 = td_var_offset(bs_is_seq_rand),
1607 .help = "Consider any blocksize setting to be sequential,ramdom",
1608 .def = "0",
1609 .parent = "blocksize",
1610 .category = FIO_OPT_C_IO,
1611 .group = FIO_OPT_G_INVALID,
1612 },
1613 {
1614 .name = "randrepeat",
1615 .lname = "Random repeatable",
1616 .type = FIO_OPT_BOOL,
1617 .off1 = td_var_offset(rand_repeatable),
1618 .help = "Use repeatable random IO pattern",
1619 .def = "1",
1620 .parent = "rw",
1621 .hide = 1,
1622 .category = FIO_OPT_C_IO,
1623 .group = FIO_OPT_G_RANDOM,
1624 },
1625 {
1626 .name = "use_os_rand",
1627 .lname = "Use OS random",
1628 .type = FIO_OPT_BOOL,
1629 .off1 = td_var_offset(use_os_rand),
1630 .help = "Set to use OS random generator",
1631 .def = "0",
1632 .parent = "rw",
1633 .hide = 1,
1634 .category = FIO_OPT_C_IO,
1635 .group = FIO_OPT_G_RANDOM,
1636 },
1637 {
1638 .name = "norandommap",
1639 .lname = "No randommap",
1640 .type = FIO_OPT_STR_SET,
1641 .off1 = td_var_offset(norandommap),
1642 .help = "Accept potential duplicate random blocks",
1643 .parent = "rw",
1644 .hide = 1,
1645 .hide_on_set = 1,
1646 .category = FIO_OPT_C_IO,
1647 .group = FIO_OPT_G_RANDOM,
1648 },
1649 {
1650 .name = "softrandommap",
1651 .lname = "Soft randommap",
1652 .type = FIO_OPT_BOOL,
1653 .off1 = td_var_offset(softrandommap),
1654 .help = "Set norandommap if randommap allocation fails",
1655 .parent = "norandommap",
1656 .hide = 1,
1657 .def = "0",
1658 .category = FIO_OPT_C_IO,
1659 .group = FIO_OPT_G_RANDOM,
1660 },
1661 {
1662 .name = "random_generator",
1663 .type = FIO_OPT_STR,
1664 .off1 = td_var_offset(random_generator),
1665 .help = "Type of random number generator to use",
1666 .def = "tausworthe",
1667 .posval = {
1668 { .ival = "tausworthe",
1669 .oval = FIO_RAND_GEN_TAUSWORTHE,
1670 .help = "Strong Tausworthe generator",
1671 },
1672 { .ival = "lfsr",
1673 .oval = FIO_RAND_GEN_LFSR,
1674 .help = "Variable length LFSR",
1675 },
1676 },
1677 .category = FIO_OPT_C_IO,
1678 .group = FIO_OPT_G_RANDOM,
1679 },
1680 {
1681 .name = "random_distribution",
1682 .type = FIO_OPT_STR,
1683 .off1 = td_var_offset(random_distribution),
1684 .cb = str_random_distribution_cb,
1685 .help = "Random offset distribution generator",
1686 .def = "random",
1687 .posval = {
1688 { .ival = "random",
1689 .oval = FIO_RAND_DIST_RANDOM,
1690 .help = "Completely random",
1691 },
1692 { .ival = "zipf",
1693 .oval = FIO_RAND_DIST_ZIPF,
1694 .help = "Zipf distribution",
1695 },
1696 { .ival = "pareto",
1697 .oval = FIO_RAND_DIST_PARETO,
1698 .help = "Pareto distribution",
1699 },
1700 },
1701 .category = FIO_OPT_C_IO,
1702 .group = FIO_OPT_G_RANDOM,
1703 },
1704 {
1705 .name = "percentage_random",
1706 .lname = "Percentage Random",
1707 .type = FIO_OPT_INT,
1708 .off1 = td_var_offset(perc_rand[DDIR_READ]),
1709 .off2 = td_var_offset(perc_rand[DDIR_WRITE]),
1710 .off3 = td_var_offset(perc_rand[DDIR_TRIM]),
1711 .maxval = 100,
1712 .help = "Percentage of seq/random mix that should be random",
1713 .def = "100,100,100",
1714 .interval = 5,
1715 .inverse = "percentage_sequential",
1716 .category = FIO_OPT_C_IO,
1717 .group = FIO_OPT_G_RANDOM,
1718 },
1719 {
1720 .name = "percentage_sequential",
1721 .lname = "Percentage Sequential",
1722 .type = FIO_OPT_DEPRECATED,
1723 .category = FIO_OPT_C_IO,
1724 .group = FIO_OPT_G_RANDOM,
1725 },
1726 {
1727 .name = "nrfiles",
1728 .lname = "Number of files",
1729 .alias = "nr_files",
1730 .type = FIO_OPT_INT,
1731 .off1 = td_var_offset(nr_files),
1732 .help = "Split job workload between this number of files",
1733 .def = "1",
1734 .interval = 1,
1735 .category = FIO_OPT_C_FILE,
1736 .group = FIO_OPT_G_INVALID,
1737 },
1738 {
1739 .name = "openfiles",
1740 .lname = "Number of open files",
1741 .type = FIO_OPT_INT,
1742 .off1 = td_var_offset(open_files),
1743 .help = "Number of files to keep open at the same time",
1744 .category = FIO_OPT_C_FILE,
1745 .group = FIO_OPT_G_INVALID,
1746 },
1747 {
1748 .name = "file_service_type",
1749 .lname = "File service type",
1750 .type = FIO_OPT_STR,
1751 .cb = str_fst_cb,
1752 .off1 = td_var_offset(file_service_type),
1753 .help = "How to select which file to service next",
1754 .def = "roundrobin",
1755 .category = FIO_OPT_C_FILE,
1756 .group = FIO_OPT_G_INVALID,
1757 .posval = {
1758 { .ival = "random",
1759 .oval = FIO_FSERVICE_RANDOM,
1760 .help = "Choose a file at random",
1761 },
1762 { .ival = "roundrobin",
1763 .oval = FIO_FSERVICE_RR,
1764 .help = "Round robin select files",
1765 },
1766 { .ival = "sequential",
1767 .oval = FIO_FSERVICE_SEQ,
1768 .help = "Finish one file before moving to the next",
1769 },
1770 },
1771 .parent = "nrfiles",
1772 .hide = 1,
1773 },
1774#ifdef CONFIG_POSIX_FALLOCATE
1775 {
1776 .name = "fallocate",
1777 .lname = "Fallocate",
1778 .type = FIO_OPT_STR,
1779 .off1 = td_var_offset(fallocate_mode),
1780 .help = "Whether pre-allocation is performed when laying out files",
1781 .def = "posix",
1782 .category = FIO_OPT_C_FILE,
1783 .group = FIO_OPT_G_INVALID,
1784 .posval = {
1785 { .ival = "none",
1786 .oval = FIO_FALLOCATE_NONE,
1787 .help = "Do not pre-allocate space",
1788 },
1789 { .ival = "posix",
1790 .oval = FIO_FALLOCATE_POSIX,
1791 .help = "Use posix_fallocate()",
1792 },
1793#ifdef CONFIG_LINUX_FALLOCATE
1794 { .ival = "keep",
1795 .oval = FIO_FALLOCATE_KEEP_SIZE,
1796 .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
1797 },
1798#endif
1799 /* Compatibility with former boolean values */
1800 { .ival = "0",
1801 .oval = FIO_FALLOCATE_NONE,
1802 .help = "Alias for 'none'",
1803 },
1804 { .ival = "1",
1805 .oval = FIO_FALLOCATE_POSIX,
1806 .help = "Alias for 'posix'",
1807 },
1808 },
1809 },
1810#endif /* CONFIG_POSIX_FALLOCATE */
1811 {
1812 .name = "fadvise_hint",
1813 .lname = "Fadvise hint",
1814 .type = FIO_OPT_BOOL,
1815 .off1 = td_var_offset(fadvise_hint),
1816 .help = "Use fadvise() to advise the kernel on IO pattern",
1817 .def = "1",
1818 .category = FIO_OPT_C_FILE,
1819 .group = FIO_OPT_G_INVALID,
1820 },
1821 {
1822 .name = "fsync",
1823 .lname = "Fsync",
1824 .type = FIO_OPT_INT,
1825 .off1 = td_var_offset(fsync_blocks),
1826 .help = "Issue fsync for writes every given number of blocks",
1827 .def = "0",
1828 .interval = 1,
1829 .category = FIO_OPT_C_FILE,
1830 .group = FIO_OPT_G_INVALID,
1831 },
1832 {
1833 .name = "fdatasync",
1834 .lname = "Fdatasync",
1835 .type = FIO_OPT_INT,
1836 .off1 = td_var_offset(fdatasync_blocks),
1837 .help = "Issue fdatasync for writes every given number of blocks",
1838 .def = "0",
1839 .interval = 1,
1840 .category = FIO_OPT_C_FILE,
1841 .group = FIO_OPT_G_INVALID,
1842 },
1843 {
1844 .name = "write_barrier",
1845 .lname = "Write barrier",
1846 .type = FIO_OPT_INT,
1847 .off1 = td_var_offset(barrier_blocks),
1848 .help = "Make every Nth write a barrier write",
1849 .def = "0",
1850 .interval = 1,
1851 .category = FIO_OPT_C_IO,
1852 .group = FIO_OPT_G_INVALID,
1853 },
1854#ifdef CONFIG_SYNC_FILE_RANGE
1855 {
1856 .name = "sync_file_range",
1857 .lname = "Sync file range",
1858 .posval = {
1859 { .ival = "wait_before",
1860 .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
1861 .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
1862 .or = 1,
1863 },
1864 { .ival = "write",
1865 .oval = SYNC_FILE_RANGE_WRITE,
1866 .help = "SYNC_FILE_RANGE_WRITE",
1867 .or = 1,
1868 },
1869 {
1870 .ival = "wait_after",
1871 .oval = SYNC_FILE_RANGE_WAIT_AFTER,
1872 .help = "SYNC_FILE_RANGE_WAIT_AFTER",
1873 .or = 1,
1874 },
1875 },
1876 .type = FIO_OPT_STR_MULTI,
1877 .cb = str_sfr_cb,
1878 .off1 = td_var_offset(sync_file_range),
1879 .help = "Use sync_file_range()",
1880 .category = FIO_OPT_C_FILE,
1881 .group = FIO_OPT_G_INVALID,
1882 },
1883#endif
1884 {
1885 .name = "direct",
1886 .lname = "Direct I/O",
1887 .type = FIO_OPT_BOOL,
1888 .off1 = td_var_offset(odirect),
1889 .help = "Use O_DIRECT IO (negates buffered)",
1890 .def = "0",
1891 .inverse = "buffered",
1892 .category = FIO_OPT_C_IO,
1893 .group = FIO_OPT_G_IO_TYPE,
1894 },
1895 {
1896 .name = "atomic",
1897 .lname = "Atomic I/O",
1898 .type = FIO_OPT_BOOL,
1899 .off1 = td_var_offset(oatomic),
1900 .help = "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
1901 .def = "0",
1902 .category = FIO_OPT_C_IO,
1903 .group = FIO_OPT_G_IO_TYPE,
1904 },
1905 {
1906 .name = "buffered",
1907 .lname = "Buffered I/O",
1908 .type = FIO_OPT_BOOL,
1909 .off1 = td_var_offset(odirect),
1910 .neg = 1,
1911 .help = "Use buffered IO (negates direct)",
1912 .def = "1",
1913 .inverse = "direct",
1914 .category = FIO_OPT_C_IO,
1915 .group = FIO_OPT_G_IO_TYPE,
1916 },
1917 {
1918 .name = "overwrite",
1919 .lname = "Overwrite",
1920 .type = FIO_OPT_BOOL,
1921 .off1 = td_var_offset(overwrite),
1922 .help = "When writing, set whether to overwrite current data",
1923 .def = "0",
1924 .category = FIO_OPT_C_FILE,
1925 .group = FIO_OPT_G_INVALID,
1926 },
1927 {
1928 .name = "loops",
1929 .lname = "Loops",
1930 .type = FIO_OPT_INT,
1931 .off1 = td_var_offset(loops),
1932 .help = "Number of times to run the job",
1933 .def = "1",
1934 .interval = 1,
1935 .category = FIO_OPT_C_GENERAL,
1936 .group = FIO_OPT_G_RUNTIME,
1937 },
1938 {
1939 .name = "numjobs",
1940 .lname = "Number of jobs",
1941 .type = FIO_OPT_INT,
1942 .off1 = td_var_offset(numjobs),
1943 .help = "Duplicate this job this many times",
1944 .def = "1",
1945 .interval = 1,
1946 .category = FIO_OPT_C_GENERAL,
1947 .group = FIO_OPT_G_RUNTIME,
1948 },
1949 {
1950 .name = "startdelay",
1951 .lname = "Start delay",
1952 .type = FIO_OPT_STR_VAL_TIME,
1953 .off1 = td_var_offset(start_delay),
1954 .help = "Only start job when this period has passed",
1955 .def = "0",
1956 .category = FIO_OPT_C_GENERAL,
1957 .group = FIO_OPT_G_RUNTIME,
1958 },
1959 {
1960 .name = "runtime",
1961 .lname = "Runtime",
1962 .alias = "timeout",
1963 .type = FIO_OPT_STR_VAL_TIME,
1964 .off1 = td_var_offset(timeout),
1965 .help = "Stop workload when this amount of time has passed",
1966 .def = "0",
1967 .category = FIO_OPT_C_GENERAL,
1968 .group = FIO_OPT_G_RUNTIME,
1969 },
1970 {
1971 .name = "time_based",
1972 .lname = "Time based",
1973 .type = FIO_OPT_STR_SET,
1974 .off1 = td_var_offset(time_based),
1975 .help = "Keep running until runtime/timeout is met",
1976 .category = FIO_OPT_C_GENERAL,
1977 .group = FIO_OPT_G_RUNTIME,
1978 },
1979 {
1980 .name = "ramp_time",
1981 .lname = "Ramp time",
1982 .type = FIO_OPT_STR_VAL_TIME,
1983 .off1 = td_var_offset(ramp_time),
1984 .help = "Ramp up time before measuring performance",
1985 .category = FIO_OPT_C_GENERAL,
1986 .group = FIO_OPT_G_RUNTIME,
1987 },
1988 {
1989 .name = "clocksource",
1990 .lname = "Clock source",
1991 .type = FIO_OPT_STR,
1992 .cb = fio_clock_source_cb,
1993 .off1 = td_var_offset(clocksource),
1994 .help = "What type of timing source to use",
1995 .category = FIO_OPT_C_GENERAL,
1996 .group = FIO_OPT_G_CLOCK,
1997 .posval = {
1998#ifdef CONFIG_GETTIMEOFDAY
1999 { .ival = "gettimeofday",
2000 .oval = CS_GTOD,
2001 .help = "Use gettimeofday(2) for timing",
2002 },
2003#endif
2004#ifdef CONFIG_CLOCK_GETTIME
2005 { .ival = "clock_gettime",
2006 .oval = CS_CGETTIME,
2007 .help = "Use clock_gettime(2) for timing",
2008 },
2009#endif
2010#ifdef ARCH_HAVE_CPU_CLOCK
2011 { .ival = "cpu",
2012 .oval = CS_CPUCLOCK,
2013 .help = "Use CPU private clock",
2014 },
2015#endif
2016 },
2017 },
2018 {
2019 .name = "mem",
2020 .alias = "iomem",
2021 .lname = "I/O Memory",
2022 .type = FIO_OPT_STR,
2023 .cb = str_mem_cb,
2024 .off1 = td_var_offset(mem_type),
2025 .help = "Backing type for IO buffers",
2026 .def = "malloc",
2027 .category = FIO_OPT_C_IO,
2028 .group = FIO_OPT_G_INVALID,
2029 .posval = {
2030 { .ival = "malloc",
2031 .oval = MEM_MALLOC,
2032 .help = "Use malloc(3) for IO buffers",
2033 },
2034 { .ival = "shm",
2035 .oval = MEM_SHM,
2036 .help = "Use shared memory segments for IO buffers",
2037 },
2038#ifdef FIO_HAVE_HUGETLB
2039 { .ival = "shmhuge",
2040 .oval = MEM_SHMHUGE,
2041 .help = "Like shm, but use huge pages",
2042 },
2043#endif
2044 { .ival = "mmap",
2045 .oval = MEM_MMAP,
2046 .help = "Use mmap(2) (file or anon) for IO buffers",
2047 },
2048#ifdef FIO_HAVE_HUGETLB
2049 { .ival = "mmaphuge",
2050 .oval = MEM_MMAPHUGE,
2051 .help = "Like mmap, but use huge pages",
2052 },
2053#endif
2054 },
2055 },
2056 {
2057 .name = "iomem_align",
2058 .alias = "mem_align",
2059 .lname = "I/O memory alignment",
2060 .type = FIO_OPT_INT,
2061 .off1 = td_var_offset(mem_align),
2062 .minval = 0,
2063 .help = "IO memory buffer offset alignment",
2064 .def = "0",
2065 .parent = "iomem",
2066 .hide = 1,
2067 .category = FIO_OPT_C_IO,
2068 .group = FIO_OPT_G_INVALID,
2069 },
2070 {
2071 .name = "verify",
2072 .lname = "Verify",
2073 .type = FIO_OPT_STR,
2074 .off1 = td_var_offset(verify),
2075 .help = "Verify data written",
2076 .def = "0",
2077 .category = FIO_OPT_C_IO,
2078 .group = FIO_OPT_G_VERIFY,
2079 .posval = {
2080 { .ival = "0",
2081 .oval = VERIFY_NONE,
2082 .help = "Don't do IO verification",
2083 },
2084 { .ival = "md5",
2085 .oval = VERIFY_MD5,
2086 .help = "Use md5 checksums for verification",
2087 },
2088 { .ival = "crc64",
2089 .oval = VERIFY_CRC64,
2090 .help = "Use crc64 checksums for verification",
2091 },
2092 { .ival = "crc32",
2093 .oval = VERIFY_CRC32,
2094 .help = "Use crc32 checksums for verification",
2095 },
2096 { .ival = "crc32c-intel",
2097 .oval = VERIFY_CRC32C,
2098 .help = "Use crc32c checksums for verification (hw assisted, if available)",
2099 },
2100 { .ival = "crc32c",
2101 .oval = VERIFY_CRC32C,
2102 .help = "Use crc32c checksums for verification (hw assisted, if available)",
2103 },
2104 { .ival = "crc16",
2105 .oval = VERIFY_CRC16,
2106 .help = "Use crc16 checksums for verification",
2107 },
2108 { .ival = "crc7",
2109 .oval = VERIFY_CRC7,
2110 .help = "Use crc7 checksums for verification",
2111 },
2112 { .ival = "sha1",
2113 .oval = VERIFY_SHA1,
2114 .help = "Use sha1 checksums for verification",
2115 },
2116 { .ival = "sha256",
2117 .oval = VERIFY_SHA256,
2118 .help = "Use sha256 checksums for verification",
2119 },
2120 { .ival = "sha512",
2121 .oval = VERIFY_SHA512,
2122 .help = "Use sha512 checksums for verification",
2123 },
2124 { .ival = "meta",
2125 .oval = VERIFY_META,
2126 .help = "Use io information",
2127 },
2128 {
2129 .ival = "null",
2130 .oval = VERIFY_NULL,
2131 .help = "Pretend to verify",
2132 },
2133 },
2134 },
2135 {
2136 .name = "do_verify",
2137 .lname = "Perform verify step",
2138 .type = FIO_OPT_BOOL,
2139 .off1 = td_var_offset(do_verify),
2140 .help = "Run verification stage after write",
2141 .def = "1",
2142 .parent = "verify",
2143 .hide = 1,
2144 .category = FIO_OPT_C_IO,
2145 .group = FIO_OPT_G_VERIFY,
2146 },
2147 {
2148 .name = "verifysort",
2149 .lname = "Verify sort",
2150 .type = FIO_OPT_BOOL,
2151 .off1 = td_var_offset(verifysort),
2152 .help = "Sort written verify blocks for read back",
2153 .def = "1",
2154 .parent = "verify",
2155 .hide = 1,
2156 .category = FIO_OPT_C_IO,
2157 .group = FIO_OPT_G_VERIFY,
2158 },
2159 {
2160 .name = "verifysort_nr",
2161 .type = FIO_OPT_INT,
2162 .off1 = td_var_offset(verifysort_nr),
2163 .help = "Pre-load and sort verify blocks for a read workload",
2164 .minval = 0,
2165 .maxval = 131072,
2166 .def = "1024",
2167 .parent = "verify",
2168 .category = FIO_OPT_C_IO,
2169 .group = FIO_OPT_G_VERIFY,
2170 },
2171 {
2172 .name = "verify_interval",
2173 .lname = "Verify interval",
2174 .type = FIO_OPT_INT,
2175 .off1 = td_var_offset(verify_interval),
2176 .minval = 2 * sizeof(struct verify_header),
2177 .help = "Store verify buffer header every N bytes",
2178 .parent = "verify",
2179 .hide = 1,
2180 .interval = 2 * sizeof(struct verify_header),
2181 .category = FIO_OPT_C_IO,
2182 .group = FIO_OPT_G_VERIFY,
2183 },
2184 {
2185 .name = "verify_offset",
2186 .lname = "Verify offset",
2187 .type = FIO_OPT_INT,
2188 .help = "Offset verify header location by N bytes",
2189 .off1 = td_var_offset(verify_offset),
2190 .minval = sizeof(struct verify_header),
2191 .parent = "verify",
2192 .hide = 1,
2193 .category = FIO_OPT_C_IO,
2194 .group = FIO_OPT_G_VERIFY,
2195 },
2196 {
2197 .name = "verify_pattern",
2198 .lname = "Verify pattern",
2199 .type = FIO_OPT_STR,
2200 .cb = str_verify_pattern_cb,
2201 .help = "Fill pattern for IO buffers",
2202 .parent = "verify",
2203 .hide = 1,
2204 .category = FIO_OPT_C_IO,
2205 .group = FIO_OPT_G_VERIFY,
2206 },
2207 {
2208 .name = "verify_fatal",
2209 .lname = "Verify fatal",
2210 .type = FIO_OPT_BOOL,
2211 .off1 = td_var_offset(verify_fatal),
2212 .def = "0",
2213 .help = "Exit on a single verify failure, don't continue",
2214 .parent = "verify",
2215 .hide = 1,
2216 .category = FIO_OPT_C_IO,
2217 .group = FIO_OPT_G_VERIFY,
2218 },
2219 {
2220 .name = "verify_dump",
2221 .lname = "Verify dump",
2222 .type = FIO_OPT_BOOL,
2223 .off1 = td_var_offset(verify_dump),
2224 .def = "0",
2225 .help = "Dump contents of good and bad blocks on failure",
2226 .parent = "verify",
2227 .hide = 1,
2228 .category = FIO_OPT_C_IO,
2229 .group = FIO_OPT_G_VERIFY,
2230 },
2231 {
2232 .name = "verify_async",
2233 .lname = "Verify asynchronously",
2234 .type = FIO_OPT_INT,
2235 .off1 = td_var_offset(verify_async),
2236 .def = "0",
2237 .help = "Number of async verifier threads to use",
2238 .parent = "verify",
2239 .hide = 1,
2240 .category = FIO_OPT_C_IO,
2241 .group = FIO_OPT_G_VERIFY,
2242 },
2243 {
2244 .name = "verify_backlog",
2245 .lname = "Verify backlog",
2246 .type = FIO_OPT_STR_VAL,
2247 .off1 = td_var_offset(verify_backlog),
2248 .help = "Verify after this number of blocks are written",
2249 .parent = "verify",
2250 .hide = 1,
2251 .category = FIO_OPT_C_IO,
2252 .group = FIO_OPT_G_VERIFY,
2253 },
2254 {
2255 .name = "verify_backlog_batch",
2256 .lname = "Verify backlog batch",
2257 .type = FIO_OPT_INT,
2258 .off1 = td_var_offset(verify_batch),
2259 .help = "Verify this number of IO blocks",
2260 .parent = "verify",
2261 .hide = 1,
2262 .category = FIO_OPT_C_IO,
2263 .group = FIO_OPT_G_VERIFY,
2264 },
2265#ifdef FIO_HAVE_CPU_AFFINITY
2266 {
2267 .name = "verify_async_cpus",
2268 .lname = "Async verify CPUs",
2269 .type = FIO_OPT_STR,
2270 .cb = str_verify_cpus_allowed_cb,
2271 .help = "Set CPUs allowed for async verify threads",
2272 .parent = "verify_async",
2273 .hide = 1,
2274 .category = FIO_OPT_C_IO,
2275 .group = FIO_OPT_G_VERIFY,
2276 },
2277#endif
2278 {
2279 .name = "experimental_verify",
2280 .off1 = td_var_offset(experimental_verify),
2281 .type = FIO_OPT_BOOL,
2282 .help = "Enable experimental verification",
2283 .category = FIO_OPT_C_IO,
2284 .group = FIO_OPT_G_VERIFY,
2285 },
2286#ifdef FIO_HAVE_TRIM
2287 {
2288 .name = "trim_percentage",
2289 .lname = "Trim percentage",
2290 .type = FIO_OPT_INT,
2291 .off1 = td_var_offset(trim_percentage),
2292 .minval = 0,
2293 .maxval = 100,
2294 .help = "Number of verify blocks to discard/trim",
2295 .parent = "verify",
2296 .def = "0",
2297 .interval = 1,
2298 .hide = 1,
2299 .category = FIO_OPT_C_IO,
2300 .group = FIO_OPT_G_TRIM,
2301 },
2302 {
2303 .name = "trim_verify_zero",
2304 .lname = "Verify trim zero",
2305 .type = FIO_OPT_BOOL,
2306 .help = "Verify that trim/discarded blocks are returned as zeroes",
2307 .off1 = td_var_offset(trim_zero),
2308 .parent = "trim_percentage",
2309 .hide = 1,
2310 .def = "1",
2311 .category = FIO_OPT_C_IO,
2312 .group = FIO_OPT_G_TRIM,
2313 },
2314 {
2315 .name = "trim_backlog",
2316 .lname = "Trim backlog",
2317 .type = FIO_OPT_STR_VAL,
2318 .off1 = td_var_offset(trim_backlog),
2319 .help = "Trim after this number of blocks are written",
2320 .parent = "trim_percentage",
2321 .hide = 1,
2322 .interval = 1,
2323 .category = FIO_OPT_C_IO,
2324 .group = FIO_OPT_G_TRIM,
2325 },
2326 {
2327 .name = "trim_backlog_batch",
2328 .lname = "Trim backlog batch",
2329 .type = FIO_OPT_INT,
2330 .off1 = td_var_offset(trim_batch),
2331 .help = "Trim this number of IO blocks",
2332 .parent = "trim_percentage",
2333 .hide = 1,
2334 .interval = 1,
2335 .category = FIO_OPT_C_IO,
2336 .group = FIO_OPT_G_TRIM,
2337 },
2338#endif
2339 {
2340 .name = "write_iolog",
2341 .lname = "Write I/O log",
2342 .type = FIO_OPT_STR_STORE,
2343 .off1 = td_var_offset(write_iolog_file),
2344 .help = "Store IO pattern to file",
2345 .category = FIO_OPT_C_IO,
2346 .group = FIO_OPT_G_IOLOG,
2347 },
2348 {
2349 .name = "read_iolog",
2350 .lname = "Read I/O log",
2351 .type = FIO_OPT_STR_STORE,
2352 .off1 = td_var_offset(read_iolog_file),
2353 .help = "Playback IO pattern from file",
2354 .category = FIO_OPT_C_IO,
2355 .group = FIO_OPT_G_IOLOG,
2356 },
2357 {
2358 .name = "replay_no_stall",
2359 .lname = "Don't stall on replay",
2360 .type = FIO_OPT_BOOL,
2361 .off1 = td_var_offset(no_stall),
2362 .def = "0",
2363 .parent = "read_iolog",
2364 .hide = 1,
2365 .help = "Playback IO pattern file as fast as possible without stalls",
2366 .category = FIO_OPT_C_IO,
2367 .group = FIO_OPT_G_IOLOG,
2368 },
2369 {
2370 .name = "replay_redirect",
2371 .lname = "Redirect device for replay",
2372 .type = FIO_OPT_STR_STORE,
2373 .off1 = td_var_offset(replay_redirect),
2374 .parent = "read_iolog",
2375 .hide = 1,
2376 .help = "Replay all I/O onto this device, regardless of trace device",
2377 .category = FIO_OPT_C_IO,
2378 .group = FIO_OPT_G_IOLOG,
2379 },
2380 {
2381 .name = "exec_prerun",
2382 .lname = "Pre-execute runnable",
2383 .type = FIO_OPT_STR_STORE,
2384 .off1 = td_var_offset(exec_prerun),
2385 .help = "Execute this file prior to running job",
2386 .category = FIO_OPT_C_GENERAL,
2387 .group = FIO_OPT_G_INVALID,
2388 },
2389 {
2390 .name = "exec_postrun",
2391 .lname = "Post-execute runnable",
2392 .type = FIO_OPT_STR_STORE,
2393 .off1 = td_var_offset(exec_postrun),
2394 .help = "Execute this file after running job",
2395 .category = FIO_OPT_C_GENERAL,
2396 .group = FIO_OPT_G_INVALID,
2397 },
2398#ifdef FIO_HAVE_IOSCHED_SWITCH
2399 {
2400 .name = "ioscheduler",
2401 .lname = "I/O scheduler",
2402 .type = FIO_OPT_STR_STORE,
2403 .off1 = td_var_offset(ioscheduler),
2404 .help = "Use this IO scheduler on the backing device",
2405 .category = FIO_OPT_C_FILE,
2406 .group = FIO_OPT_G_INVALID,
2407 },
2408#endif
2409 {
2410 .name = "zonesize",
2411 .lname = "Zone size",
2412 .type = FIO_OPT_STR_VAL,
2413 .off1 = td_var_offset(zone_size),
2414 .help = "Amount of data to read per zone",
2415 .def = "0",
2416 .interval = 1024 * 1024,
2417 .category = FIO_OPT_C_IO,
2418 .group = FIO_OPT_G_ZONE,
2419 },
2420 {
2421 .name = "zonerange",
2422 .lname = "Zone range",
2423 .type = FIO_OPT_STR_VAL,
2424 .off1 = td_var_offset(zone_range),
2425 .help = "Give size of an IO zone",
2426 .def = "0",
2427 .interval = 1024 * 1024,
2428 .category = FIO_OPT_C_IO,
2429 .group = FIO_OPT_G_ZONE,
2430 },
2431 {
2432 .name = "zoneskip",
2433 .lname = "Zone skip",
2434 .type = FIO_OPT_STR_VAL,
2435 .off1 = td_var_offset(zone_skip),
2436 .help = "Space between IO zones",
2437 .def = "0",
2438 .interval = 1024 * 1024,
2439 .category = FIO_OPT_C_IO,
2440 .group = FIO_OPT_G_ZONE,
2441 },
2442 {
2443 .name = "lockmem",
2444 .lname = "Lock memory",
2445 .type = FIO_OPT_STR_VAL,
2446 .off1 = td_var_offset(lockmem),
2447 .help = "Lock down this amount of memory (per worker)",
2448 .def = "0",
2449 .interval = 1024 * 1024,
2450 .category = FIO_OPT_C_GENERAL,
2451 .group = FIO_OPT_G_INVALID,
2452 },
2453 {
2454 .name = "rwmixread",
2455 .lname = "Read/write mix read",
2456 .type = FIO_OPT_INT,
2457 .cb = str_rwmix_read_cb,
2458 .maxval = 100,
2459 .help = "Percentage of mixed workload that is reads",
2460 .def = "50",
2461 .interval = 5,
2462 .inverse = "rwmixwrite",
2463 .category = FIO_OPT_C_IO,
2464 .group = FIO_OPT_G_RWMIX,
2465 },
2466 {
2467 .name = "rwmixwrite",
2468 .lname = "Read/write mix write",
2469 .type = FIO_OPT_INT,
2470 .cb = str_rwmix_write_cb,
2471 .maxval = 100,
2472 .help = "Percentage of mixed workload that is writes",
2473 .def = "50",
2474 .interval = 5,
2475 .inverse = "rwmixread",
2476 .category = FIO_OPT_C_IO,
2477 .group = FIO_OPT_G_RWMIX,
2478 },
2479 {
2480 .name = "rwmixcycle",
2481 .lname = "Read/write mix cycle",
2482 .type = FIO_OPT_DEPRECATED,
2483 .category = FIO_OPT_C_IO,
2484 .group = FIO_OPT_G_RWMIX,
2485 },
2486 {
2487 .name = "nice",
2488 .lname = "Nice",
2489 .type = FIO_OPT_INT,
2490 .off1 = td_var_offset(nice),
2491 .help = "Set job CPU nice value",
2492 .minval = -19,
2493 .maxval = 20,
2494 .def = "0",
2495 .interval = 1,
2496 .category = FIO_OPT_C_GENERAL,
2497 .group = FIO_OPT_G_CRED,
2498 },
2499#ifdef FIO_HAVE_IOPRIO
2500 {
2501 .name = "prio",
2502 .lname = "I/O nice priority",
2503 .type = FIO_OPT_INT,
2504 .off1 = td_var_offset(ioprio),
2505 .help = "Set job IO priority value",
2506 .minval = 0,
2507 .maxval = 7,
2508 .interval = 1,
2509 .category = FIO_OPT_C_GENERAL,
2510 .group = FIO_OPT_G_CRED,
2511 },
2512 {
2513 .name = "prioclass",
2514 .lname = "I/O nice priority class",
2515 .type = FIO_OPT_INT,
2516 .off1 = td_var_offset(ioprio_class),
2517 .help = "Set job IO priority class",
2518 .minval = 0,
2519 .maxval = 3,
2520 .interval = 1,
2521 .category = FIO_OPT_C_GENERAL,
2522 .group = FIO_OPT_G_CRED,
2523 },
2524#endif
2525 {
2526 .name = "thinktime",
2527 .lname = "Thinktime",
2528 .type = FIO_OPT_INT,
2529 .off1 = td_var_offset(thinktime),
2530 .help = "Idle time between IO buffers (usec)",
2531 .def = "0",
2532 .category = FIO_OPT_C_IO,
2533 .group = FIO_OPT_G_THINKTIME,
2534 },
2535 {
2536 .name = "thinktime_spin",
2537 .lname = "Thinktime spin",
2538 .type = FIO_OPT_INT,
2539 .off1 = td_var_offset(thinktime_spin),
2540 .help = "Start think time by spinning this amount (usec)",
2541 .def = "0",
2542 .parent = "thinktime",
2543 .hide = 1,
2544 .category = FIO_OPT_C_IO,
2545 .group = FIO_OPT_G_THINKTIME,
2546 },
2547 {
2548 .name = "thinktime_blocks",
2549 .lname = "Thinktime blocks",
2550 .type = FIO_OPT_INT,
2551 .off1 = td_var_offset(thinktime_blocks),
2552 .help = "IO buffer period between 'thinktime'",
2553 .def = "1",
2554 .parent = "thinktime",
2555 .hide = 1,
2556 .category = FIO_OPT_C_IO,
2557 .group = FIO_OPT_G_THINKTIME,
2558 },
2559 {
2560 .name = "rate",
2561 .lname = "I/O rate",
2562 .type = FIO_OPT_INT,
2563 .off1 = td_var_offset(rate[DDIR_READ]),
2564 .off2 = td_var_offset(rate[DDIR_WRITE]),
2565 .off3 = td_var_offset(rate[DDIR_TRIM]),
2566 .help = "Set bandwidth rate",
2567 .category = FIO_OPT_C_IO,
2568 .group = FIO_OPT_G_RATE,
2569 },
2570 {
2571 .name = "ratemin",
2572 .lname = "I/O min rate",
2573 .type = FIO_OPT_INT,
2574 .off1 = td_var_offset(ratemin[DDIR_READ]),
2575 .off2 = td_var_offset(ratemin[DDIR_WRITE]),
2576 .off3 = td_var_offset(ratemin[DDIR_TRIM]),
2577 .help = "Job must meet this rate or it will be shutdown",
2578 .parent = "rate",
2579 .hide = 1,
2580 .category = FIO_OPT_C_IO,
2581 .group = FIO_OPT_G_RATE,
2582 },
2583 {
2584 .name = "rate_iops",
2585 .lname = "I/O rate IOPS",
2586 .type = FIO_OPT_INT,
2587 .off1 = td_var_offset(rate_iops[DDIR_READ]),
2588 .off2 = td_var_offset(rate_iops[DDIR_WRITE]),
2589 .off3 = td_var_offset(rate_iops[DDIR_TRIM]),
2590 .help = "Limit IO used to this number of IO operations/sec",
2591 .hide = 1,
2592 .category = FIO_OPT_C_IO,
2593 .group = FIO_OPT_G_RATE,
2594 },
2595 {
2596 .name = "rate_iops_min",
2597 .lname = "I/O min rate IOPS",
2598 .type = FIO_OPT_INT,
2599 .off1 = td_var_offset(rate_iops_min[DDIR_READ]),
2600 .off2 = td_var_offset(rate_iops_min[DDIR_WRITE]),
2601 .off3 = td_var_offset(rate_iops_min[DDIR_TRIM]),
2602 .help = "Job must meet this rate or it will be shut down",
2603 .parent = "rate_iops",
2604 .hide = 1,
2605 .category = FIO_OPT_C_IO,
2606 .group = FIO_OPT_G_RATE,
2607 },
2608 {
2609 .name = "ratecycle",
2610 .lname = "I/O rate cycle",
2611 .type = FIO_OPT_INT,
2612 .off1 = td_var_offset(ratecycle),
2613 .help = "Window average for rate limits (msec)",
2614 .def = "1000",
2615 .parent = "rate",
2616 .hide = 1,
2617 .category = FIO_OPT_C_IO,
2618 .group = FIO_OPT_G_RATE,
2619 },
2620 {
2621 .name = "max_latency",
2622 .type = FIO_OPT_INT,
2623 .off1 = td_var_offset(max_latency),
2624 .help = "Maximum tolerated IO latency (usec)",
2625 .category = FIO_OPT_C_IO,
2626 .group = FIO_OPT_G_RATE,
2627 },
2628 {
2629 .name = "invalidate",
2630 .lname = "Cache invalidate",
2631 .type = FIO_OPT_BOOL,
2632 .off1 = td_var_offset(invalidate_cache),
2633 .help = "Invalidate buffer/page cache prior to running job",
2634 .def = "1",
2635 .category = FIO_OPT_C_IO,
2636 .group = FIO_OPT_G_IO_TYPE,
2637 },
2638 {
2639 .name = "sync",
2640 .lname = "Synchronous I/O",
2641 .type = FIO_OPT_BOOL,
2642 .off1 = td_var_offset(sync_io),
2643 .help = "Use O_SYNC for buffered writes",
2644 .def = "0",
2645 .parent = "buffered",
2646 .hide = 1,
2647 .category = FIO_OPT_C_IO,
2648 .group = FIO_OPT_G_IO_TYPE,
2649 },
2650 {
2651 .name = "create_serialize",
2652 .lname = "Create serialize",
2653 .type = FIO_OPT_BOOL,
2654 .off1 = td_var_offset(create_serialize),
2655 .help = "Serialize creating of job files",
2656 .def = "1",
2657 .category = FIO_OPT_C_FILE,
2658 .group = FIO_OPT_G_INVALID,
2659 },
2660 {
2661 .name = "create_fsync",
2662 .lname = "Create fsync",
2663 .type = FIO_OPT_BOOL,
2664 .off1 = td_var_offset(create_fsync),
2665 .help = "fsync file after creation",
2666 .def = "1",
2667 .category = FIO_OPT_C_FILE,
2668 .group = FIO_OPT_G_INVALID,
2669 },
2670 {
2671 .name = "create_on_open",
2672 .lname = "Create on open",
2673 .type = FIO_OPT_BOOL,
2674 .off1 = td_var_offset(create_on_open),
2675 .help = "Create files when they are opened for IO",
2676 .def = "0",
2677 .category = FIO_OPT_C_FILE,
2678 .group = FIO_OPT_G_INVALID,
2679 },
2680 {
2681 .name = "create_only",
2682 .type = FIO_OPT_BOOL,
2683 .off1 = td_var_offset(create_only),
2684 .help = "Only perform file creation phase",
2685 .category = FIO_OPT_C_FILE,
2686 .def = "0",
2687 },
2688 {
2689 .name = "pre_read",
2690 .lname = "Pre-read files",
2691 .type = FIO_OPT_BOOL,
2692 .off1 = td_var_offset(pre_read),
2693 .help = "Pre-read files before starting official testing",
2694 .def = "0",
2695 .category = FIO_OPT_C_FILE,
2696 .group = FIO_OPT_G_INVALID,
2697 },
2698#ifdef FIO_HAVE_CPU_AFFINITY
2699 {
2700 .name = "cpumask",
2701 .lname = "CPU mask",
2702 .type = FIO_OPT_INT,
2703 .cb = str_cpumask_cb,
2704 .help = "CPU affinity mask",
2705 .category = FIO_OPT_C_GENERAL,
2706 .group = FIO_OPT_G_CRED,
2707 },
2708 {
2709 .name = "cpus_allowed",
2710 .lname = "CPUs allowed",
2711 .type = FIO_OPT_STR,
2712 .cb = str_cpus_allowed_cb,
2713 .help = "Set CPUs allowed",
2714 .category = FIO_OPT_C_GENERAL,
2715 .group = FIO_OPT_G_CRED,
2716 },
2717#endif
2718#ifdef CONFIG_LIBNUMA
2719 {
2720 .name = "numa_cpu_nodes",
2721 .type = FIO_OPT_STR,
2722 .cb = str_numa_cpunodes_cb,
2723 .help = "NUMA CPU nodes bind",
2724 .category = FIO_OPT_C_GENERAL,
2725 .group = FIO_OPT_G_INVALID,
2726 },
2727 {
2728 .name = "numa_mem_policy",
2729 .type = FIO_OPT_STR,
2730 .cb = str_numa_mpol_cb,
2731 .help = "NUMA memory policy setup",
2732 .category = FIO_OPT_C_GENERAL,
2733 .group = FIO_OPT_G_INVALID,
2734 },
2735#endif
2736 {
2737 .name = "end_fsync",
2738 .lname = "End fsync",
2739 .type = FIO_OPT_BOOL,
2740 .off1 = td_var_offset(end_fsync),
2741 .help = "Include fsync at the end of job",
2742 .def = "0",
2743 .category = FIO_OPT_C_FILE,
2744 .group = FIO_OPT_G_INVALID,
2745 },
2746 {
2747 .name = "fsync_on_close",
2748 .lname = "Fsync on close",
2749 .type = FIO_OPT_BOOL,
2750 .off1 = td_var_offset(fsync_on_close),
2751 .help = "fsync files on close",
2752 .def = "0",
2753 .category = FIO_OPT_C_FILE,
2754 .group = FIO_OPT_G_INVALID,
2755 },
2756 {
2757 .name = "unlink",
2758 .lname = "Unlink file",
2759 .type = FIO_OPT_BOOL,
2760 .off1 = td_var_offset(unlink),
2761 .help = "Unlink created files after job has completed",
2762 .def = "0",
2763 .category = FIO_OPT_C_FILE,
2764 .group = FIO_OPT_G_INVALID,
2765 },
2766 {
2767 .name = "exitall",
2768 .lname = "Exit-all on terminate",
2769 .type = FIO_OPT_STR_SET,
2770 .cb = str_exitall_cb,
2771 .help = "Terminate all jobs when one exits",
2772 .category = FIO_OPT_C_GENERAL,
2773 .group = FIO_OPT_G_PROCESS,
2774 },
2775 {
2776 .name = "stonewall",
2777 .lname = "Wait for previous",
2778 .alias = "wait_for_previous",
2779 .type = FIO_OPT_STR_SET,
2780 .off1 = td_var_offset(stonewall),
2781 .help = "Insert a hard barrier between this job and previous",
2782 .category = FIO_OPT_C_GENERAL,
2783 .group = FIO_OPT_G_PROCESS,
2784 },
2785 {
2786 .name = "new_group",
2787 .lname = "New group",
2788 .type = FIO_OPT_STR_SET,
2789 .off1 = td_var_offset(new_group),
2790 .help = "Mark the start of a new group (for reporting)",
2791 .category = FIO_OPT_C_GENERAL,
2792 .group = FIO_OPT_G_PROCESS,
2793 },
2794 {
2795 .name = "thread",
2796 .lname = "Thread",
2797 .type = FIO_OPT_STR_SET,
2798 .off1 = td_var_offset(use_thread),
2799 .help = "Use threads instead of processes",
2800 .category = FIO_OPT_C_GENERAL,
2801 .group = FIO_OPT_G_PROCESS,
2802 },
2803 {
2804 .name = "write_bw_log",
2805 .lname = "Write bandwidth log",
2806 .type = FIO_OPT_STR_STORE,
2807 .off1 = td_var_offset(bw_log_file),
2808 .help = "Write log of bandwidth during run",
2809 .category = FIO_OPT_C_LOG,
2810 .group = FIO_OPT_G_INVALID,
2811 },
2812 {
2813 .name = "write_lat_log",
2814 .lname = "Write latency log",
2815 .type = FIO_OPT_STR_STORE,
2816 .off1 = td_var_offset(lat_log_file),
2817 .help = "Write log of latency during run",
2818 .category = FIO_OPT_C_LOG,
2819 .group = FIO_OPT_G_INVALID,
2820 },
2821 {
2822 .name = "write_iops_log",
2823 .lname = "Write IOPS log",
2824 .type = FIO_OPT_STR_STORE,
2825 .off1 = td_var_offset(iops_log_file),
2826 .help = "Write log of IOPS during run",
2827 .category = FIO_OPT_C_LOG,
2828 .group = FIO_OPT_G_INVALID,
2829 },
2830 {
2831 .name = "log_avg_msec",
2832 .lname = "Log averaging (msec)",
2833 .type = FIO_OPT_INT,
2834 .off1 = td_var_offset(log_avg_msec),
2835 .help = "Average bw/iops/lat logs over this period of time",
2836 .def = "0",
2837 .category = FIO_OPT_C_LOG,
2838 .group = FIO_OPT_G_INVALID,
2839 },
2840 {
2841 .name = "bwavgtime",
2842 .lname = "Bandwidth average time",
2843 .type = FIO_OPT_INT,
2844 .off1 = td_var_offset(bw_avg_time),
2845 .help = "Time window over which to calculate bandwidth"
2846 " (msec)",
2847 .def = "500",
2848 .parent = "write_bw_log",
2849 .hide = 1,
2850 .interval = 100,
2851 .category = FIO_OPT_C_LOG,
2852 .group = FIO_OPT_G_INVALID,
2853 },
2854 {
2855 .name = "iopsavgtime",
2856 .lname = "IOPS average time",
2857 .type = FIO_OPT_INT,
2858 .off1 = td_var_offset(iops_avg_time),
2859 .help = "Time window over which to calculate IOPS (msec)",
2860 .def = "500",
2861 .parent = "write_iops_log",
2862 .hide = 1,
2863 .interval = 100,
2864 .category = FIO_OPT_C_LOG,
2865 .group = FIO_OPT_G_INVALID,
2866 },
2867 {
2868 .name = "group_reporting",
2869 .lname = "Group reporting",
2870 .type = FIO_OPT_STR_SET,
2871 .off1 = td_var_offset(group_reporting),
2872 .help = "Do reporting on a per-group basis",
2873 .category = FIO_OPT_C_STAT,
2874 .group = FIO_OPT_G_INVALID,
2875 },
2876 {
2877 .name = "zero_buffers",
2878 .lname = "Zero I/O buffers",
2879 .type = FIO_OPT_STR_SET,
2880 .off1 = td_var_offset(zero_buffers),
2881 .help = "Init IO buffers to all zeroes",
2882 .category = FIO_OPT_C_IO,
2883 .group = FIO_OPT_G_IO_BUF,
2884 },
2885 {
2886 .name = "refill_buffers",
2887 .lname = "Refill I/O buffers",
2888 .type = FIO_OPT_STR_SET,
2889 .off1 = td_var_offset(refill_buffers),
2890 .help = "Refill IO buffers on every IO submit",
2891 .category = FIO_OPT_C_IO,
2892 .group = FIO_OPT_G_IO_BUF,
2893 },
2894 {
2895 .name = "scramble_buffers",
2896 .lname = "Scramble I/O buffers",
2897 .type = FIO_OPT_BOOL,
2898 .off1 = td_var_offset(scramble_buffers),
2899 .help = "Slightly scramble buffers on every IO submit",
2900 .def = "1",
2901 .category = FIO_OPT_C_IO,
2902 .group = FIO_OPT_G_IO_BUF,
2903 },
2904 {
2905 .name = "buffer_compress_percentage",
2906 .lname = "Buffer compression percentage",
2907 .type = FIO_OPT_INT,
2908 .off1 = td_var_offset(compress_percentage),
2909 .maxval = 100,
2910 .minval = 1,
2911 .help = "How compressible the buffer is (approximately)",
2912 .interval = 5,
2913 .category = FIO_OPT_C_IO,
2914 .group = FIO_OPT_G_IO_BUF,
2915 },
2916 {
2917 .name = "buffer_compress_chunk",
2918 .lname = "Buffer compression chunk size",
2919 .type = FIO_OPT_INT,
2920 .off1 = td_var_offset(compress_chunk),
2921 .parent = "buffer_compress_percentage",
2922 .hide = 1,
2923 .help = "Size of compressible region in buffer",
2924 .interval = 256,
2925 .category = FIO_OPT_C_IO,
2926 .group = FIO_OPT_G_IO_BUF,
2927 },
2928 {
2929 .name = "clat_percentiles",
2930 .lname = "Completion latency percentiles",
2931 .type = FIO_OPT_BOOL,
2932 .off1 = td_var_offset(clat_percentiles),
2933 .help = "Enable the reporting of completion latency percentiles",
2934 .def = "1",
2935 .category = FIO_OPT_C_STAT,
2936 .group = FIO_OPT_G_INVALID,
2937 },
2938 {
2939 .name = "percentile_list",
2940 .lname = "Completion latency percentile list",
2941 .type = FIO_OPT_FLOAT_LIST,
2942 .off1 = td_var_offset(percentile_list),
2943 .off2 = td_var_offset(percentile_precision),
2944 .help = "Specify a custom list of percentiles to report",
2945 .def = "1:5:10:20:30:40:50:60:70:80:90:95:99:99.5:99.9:99.95:99.99",
2946 .maxlen = FIO_IO_U_LIST_MAX_LEN,
2947 .minfp = 0.0,
2948 .maxfp = 100.0,
2949 .category = FIO_OPT_C_STAT,
2950 .group = FIO_OPT_G_INVALID,
2951 },
2952
2953#ifdef FIO_HAVE_DISK_UTIL
2954 {
2955 .name = "disk_util",
2956 .lname = "Disk utilization",
2957 .type = FIO_OPT_BOOL,
2958 .off1 = td_var_offset(do_disk_util),
2959 .help = "Log disk utilization statistics",
2960 .def = "1",
2961 .category = FIO_OPT_C_STAT,
2962 .group = FIO_OPT_G_INVALID,
2963 },
2964#endif
2965 {
2966 .name = "gtod_reduce",
2967 .lname = "Reduce gettimeofday() calls",
2968 .type = FIO_OPT_BOOL,
2969 .help = "Greatly reduce number of gettimeofday() calls",
2970 .cb = str_gtod_reduce_cb,
2971 .def = "0",
2972 .hide_on_set = 1,
2973 .category = FIO_OPT_C_STAT,
2974 .group = FIO_OPT_G_INVALID,
2975 },
2976 {
2977 .name = "disable_lat",
2978 .lname = "Disable all latency stats",
2979 .type = FIO_OPT_BOOL,
2980 .off1 = td_var_offset(disable_lat),
2981 .help = "Disable latency numbers",
2982 .parent = "gtod_reduce",
2983 .hide = 1,
2984 .def = "0",
2985 .category = FIO_OPT_C_STAT,
2986 .group = FIO_OPT_G_INVALID,
2987 },
2988 {
2989 .name = "disable_clat",
2990 .lname = "Disable completion latency stats",
2991 .type = FIO_OPT_BOOL,
2992 .off1 = td_var_offset(disable_clat),
2993 .help = "Disable completion latency numbers",
2994 .parent = "gtod_reduce",
2995 .hide = 1,
2996 .def = "0",
2997 .category = FIO_OPT_C_STAT,
2998 .group = FIO_OPT_G_INVALID,
2999 },
3000 {
3001 .name = "disable_slat",
3002 .lname = "Disable submission latency stats",
3003 .type = FIO_OPT_BOOL,
3004 .off1 = td_var_offset(disable_slat),
3005 .help = "Disable submission latency numbers",
3006 .parent = "gtod_reduce",
3007 .hide = 1,
3008 .def = "0",
3009 .category = FIO_OPT_C_STAT,
3010 .group = FIO_OPT_G_INVALID,
3011 },
3012 {
3013 .name = "disable_bw_measurement",
3014 .lname = "Disable bandwidth stats",
3015 .type = FIO_OPT_BOOL,
3016 .off1 = td_var_offset(disable_bw),
3017 .help = "Disable bandwidth logging",
3018 .parent = "gtod_reduce",
3019 .hide = 1,
3020 .def = "0",
3021 .category = FIO_OPT_C_STAT,
3022 .group = FIO_OPT_G_INVALID,
3023 },
3024 {
3025 .name = "gtod_cpu",
3026 .lname = "Dedicated gettimeofday() CPU",
3027 .type = FIO_OPT_INT,
3028 .cb = str_gtod_cpu_cb,
3029 .help = "Set up dedicated gettimeofday() thread on this CPU",
3030 .verify = gtod_cpu_verify,
3031 .category = FIO_OPT_C_GENERAL,
3032 .group = FIO_OPT_G_CLOCK,
3033 },
3034 {
3035 .name = "unified_rw_reporting",
3036 .type = FIO_OPT_BOOL,
3037 .off1 = td_var_offset(unified_rw_rep),
3038 .help = "Unify reporting across data direction",
3039 .def = "0",
3040 .category = FIO_OPT_C_GENERAL,
3041 .group = FIO_OPT_G_INVALID,
3042 },
3043 {
3044 .name = "continue_on_error",
3045 .lname = "Continue on error",
3046 .type = FIO_OPT_STR,
3047 .off1 = td_var_offset(continue_on_error),
3048 .help = "Continue on non-fatal errors during IO",
3049 .def = "none",
3050 .category = FIO_OPT_C_GENERAL,
3051 .group = FIO_OPT_G_ERR,
3052 .posval = {
3053 { .ival = "none",
3054 .oval = ERROR_TYPE_NONE,
3055 .help = "Exit when an error is encountered",
3056 },
3057 { .ival = "read",
3058 .oval = ERROR_TYPE_READ,
3059 .help = "Continue on read errors only",
3060 },
3061 { .ival = "write",
3062 .oval = ERROR_TYPE_WRITE,
3063 .help = "Continue on write errors only",
3064 },
3065 { .ival = "io",
3066 .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
3067 .help = "Continue on any IO errors",
3068 },
3069 { .ival = "verify",
3070 .oval = ERROR_TYPE_VERIFY,
3071 .help = "Continue on verify errors only",
3072 },
3073 { .ival = "all",
3074 .oval = ERROR_TYPE_ANY,
3075 .help = "Continue on all io and verify errors",
3076 },
3077 { .ival = "0",
3078 .oval = ERROR_TYPE_NONE,
3079 .help = "Alias for 'none'",
3080 },
3081 { .ival = "1",
3082 .oval = ERROR_TYPE_ANY,
3083 .help = "Alias for 'all'",
3084 },
3085 },
3086 },
3087 {
3088 .name = "ignore_error",
3089 .type = FIO_OPT_STR,
3090 .cb = str_ignore_error_cb,
3091 .help = "Set a specific list of errors to ignore",
3092 .parent = "rw",
3093 .category = FIO_OPT_C_GENERAL,
3094 .group = FIO_OPT_G_ERR,
3095 },
3096 {
3097 .name = "error_dump",
3098 .type = FIO_OPT_BOOL,
3099 .off1 = td_var_offset(error_dump),
3100 .def = "0",
3101 .help = "Dump info on each error",
3102 .category = FIO_OPT_C_GENERAL,
3103 .group = FIO_OPT_G_ERR,
3104 },
3105 {
3106 .name = "profile",
3107 .lname = "Profile",
3108 .type = FIO_OPT_STR_STORE,
3109 .off1 = td_var_offset(profile),
3110 .help = "Select a specific builtin performance test",
3111 .category = FIO_OPT_C_PROFILE,
3112 .group = FIO_OPT_G_INVALID,
3113 },
3114 {
3115 .name = "cgroup",
3116 .lname = "Cgroup",
3117 .type = FIO_OPT_STR_STORE,
3118 .off1 = td_var_offset(cgroup),
3119 .help = "Add job to cgroup of this name",
3120 .category = FIO_OPT_C_GENERAL,
3121 .group = FIO_OPT_G_CGROUP,
3122 },
3123 {
3124 .name = "cgroup_nodelete",
3125 .lname = "Cgroup no-delete",
3126 .type = FIO_OPT_BOOL,
3127 .off1 = td_var_offset(cgroup_nodelete),
3128 .help = "Do not delete cgroups after job completion",
3129 .def = "0",
3130 .parent = "cgroup",
3131 .category = FIO_OPT_C_GENERAL,
3132 .group = FIO_OPT_G_CGROUP,
3133 },
3134 {
3135 .name = "cgroup_weight",
3136 .lname = "Cgroup weight",
3137 .type = FIO_OPT_INT,
3138 .off1 = td_var_offset(cgroup_weight),
3139 .help = "Use given weight for cgroup",
3140 .minval = 100,
3141 .maxval = 1000,
3142 .parent = "cgroup",
3143 .category = FIO_OPT_C_GENERAL,
3144 .group = FIO_OPT_G_CGROUP,
3145 },
3146 {
3147 .name = "uid",
3148 .lname = "User ID",
3149 .type = FIO_OPT_INT,
3150 .off1 = td_var_offset(uid),
3151 .help = "Run job with this user ID",
3152 .category = FIO_OPT_C_GENERAL,
3153 .group = FIO_OPT_G_CRED,
3154 },
3155 {
3156 .name = "gid",
3157 .lname = "Group ID",
3158 .type = FIO_OPT_INT,
3159 .off1 = td_var_offset(gid),
3160 .help = "Run job with this group ID",
3161 .category = FIO_OPT_C_GENERAL,
3162 .group = FIO_OPT_G_CRED,
3163 },
3164 {
3165 .name = "kb_base",
3166 .lname = "KB Base",
3167 .type = FIO_OPT_INT,
3168 .off1 = td_var_offset(kb_base),
3169 .prio = 1,
3170 .def = "1024",
3171 .posval = {
3172 { .ival = "1024",
3173 .oval = 1024,
3174 .help = "Use 1024 as the K base",
3175 },
3176 { .ival = "1000",
3177 .oval = 1000,
3178 .help = "Use 1000 as the K base",
3179 },
3180 },
3181 .help = "How many bytes per KB for reporting (1000 or 1024)",
3182 .category = FIO_OPT_C_GENERAL,
3183 .group = FIO_OPT_G_INVALID,
3184 },
3185 {
3186 .name = "unit_base",
3187 .lname = "Base unit for reporting (Bits or Bytes)",
3188 .type = FIO_OPT_INT,
3189 .off1 = td_var_offset(unit_base),
3190 .prio = 1,
3191 .posval = {
3192 { .ival = "0",
3193 .oval = 0,
3194 .help = "Auto-detect",
3195 },
3196 { .ival = "8",
3197 .oval = 8,
3198 .help = "Normal (byte based)",
3199 },
3200 { .ival = "1",
3201 .oval = 1,
3202 .help = "Bit based",
3203 },
3204 },
3205 .help = "Bit multiple of result summary data (8 for byte, 1 for bit)",
3206 .category = FIO_OPT_C_GENERAL,
3207 .group = FIO_OPT_G_INVALID,
3208 },
3209 {
3210 .name = "hugepage-size",
3211 .lname = "Hugepage size",
3212 .type = FIO_OPT_INT,
3213 .off1 = td_var_offset(hugepage_size),
3214 .help = "When using hugepages, specify size of each page",
3215 .def = __fio_stringify(FIO_HUGE_PAGE),
3216 .interval = 1024 * 1024,
3217 .category = FIO_OPT_C_GENERAL,
3218 .group = FIO_OPT_G_INVALID,
3219 },
3220 {
3221 .name = "flow_id",
3222 .lname = "I/O flow ID",
3223 .type = FIO_OPT_INT,
3224 .off1 = td_var_offset(flow_id),
3225 .help = "The flow index ID to use",
3226 .def = "0",
3227 .category = FIO_OPT_C_IO,
3228 .group = FIO_OPT_G_IO_FLOW,
3229 },
3230 {
3231 .name = "flow",
3232 .lname = "I/O flow weight",
3233 .type = FIO_OPT_INT,
3234 .off1 = td_var_offset(flow),
3235 .help = "Weight for flow control of this job",
3236 .parent = "flow_id",
3237 .hide = 1,
3238 .def = "0",
3239 .category = FIO_OPT_C_IO,
3240 .group = FIO_OPT_G_IO_FLOW,
3241 },
3242 {
3243 .name = "flow_watermark",
3244 .lname = "I/O flow watermark",
3245 .type = FIO_OPT_INT,
3246 .off1 = td_var_offset(flow_watermark),
3247 .help = "High watermark for flow control. This option"
3248 " should be set to the same value for all threads"
3249 " with non-zero flow.",
3250 .parent = "flow_id",
3251 .hide = 1,
3252 .def = "1024",
3253 .category = FIO_OPT_C_IO,
3254 .group = FIO_OPT_G_IO_FLOW,
3255 },
3256 {
3257 .name = "flow_sleep",
3258 .lname = "I/O flow sleep",
3259 .type = FIO_OPT_INT,
3260 .off1 = td_var_offset(flow_sleep),
3261 .help = "How many microseconds to sleep after being held"
3262 " back by the flow control mechanism",
3263 .parent = "flow_id",
3264 .hide = 1,
3265 .def = "0",
3266 .category = FIO_OPT_C_IO,
3267 .group = FIO_OPT_G_IO_FLOW,
3268 },
3269 {
3270 .name = NULL,
3271 },
3272};
3273
3274static void add_to_lopt(struct option *lopt, struct fio_option *o,
3275 const char *name, int val)
3276{
3277 lopt->name = (char *) name;
3278 lopt->val = val;
3279 if (o->type == FIO_OPT_STR_SET)
3280 lopt->has_arg = optional_argument;
3281 else
3282 lopt->has_arg = required_argument;
3283}
3284
3285static void options_to_lopts(struct fio_option *opts,
3286 struct option *long_options,
3287 int i, int option_type)
3288{
3289 struct fio_option *o = &opts[0];
3290 while (o->name) {
3291 add_to_lopt(&long_options[i], o, o->name, option_type);
3292 if (o->alias) {
3293 i++;
3294 add_to_lopt(&long_options[i], o, o->alias, option_type);
3295 }
3296
3297 i++;
3298 o++;
3299 assert(i < FIO_NR_OPTIONS);
3300 }
3301}
3302
3303void fio_options_set_ioengine_opts(struct option *long_options,
3304 struct thread_data *td)
3305{
3306 unsigned int i;
3307
3308 i = 0;
3309 while (long_options[i].name) {
3310 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
3311 memset(&long_options[i], 0, sizeof(*long_options));
3312 break;
3313 }
3314 i++;
3315 }
3316
3317 /*
3318 * Just clear out the prior ioengine options.
3319 */
3320 if (!td || !td->eo)
3321 return;
3322
3323 options_to_lopts(td->io_ops->options, long_options, i,
3324 FIO_GETOPT_IOENGINE);
3325}
3326
3327void fio_options_dup_and_init(struct option *long_options)
3328{
3329 unsigned int i;
3330
3331 options_init(fio_options);
3332
3333 i = 0;
3334 while (long_options[i].name)
3335 i++;
3336
3337 options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
3338}
3339
3340struct fio_keyword {
3341 const char *word;
3342 const char *desc;
3343 char *replace;
3344};
3345
3346static struct fio_keyword fio_keywords[] = {
3347 {
3348 .word = "$pagesize",
3349 .desc = "Page size in the system",
3350 },
3351 {
3352 .word = "$mb_memory",
3353 .desc = "Megabytes of memory online",
3354 },
3355 {
3356 .word = "$ncpus",
3357 .desc = "Number of CPUs online in the system",
3358 },
3359 {
3360 .word = NULL,
3361 },
3362};
3363
3364void fio_keywords_init(void)
3365{
3366 unsigned long long mb_memory;
3367 char buf[128];
3368 long l;
3369
3370 sprintf(buf, "%lu", (unsigned long) page_size);
3371 fio_keywords[0].replace = strdup(buf);
3372
3373 mb_memory = os_phys_mem() / (1024 * 1024);
3374 sprintf(buf, "%llu", mb_memory);
3375 fio_keywords[1].replace = strdup(buf);
3376
3377 l = cpus_online();
3378 sprintf(buf, "%lu", l);
3379 fio_keywords[2].replace = strdup(buf);
3380}
3381
3382#define BC_APP "bc"
3383
3384static char *bc_calc(char *str)
3385{
3386 char buf[128], *tmp;
3387 FILE *f;
3388 int ret;
3389
3390 /*
3391 * No math, just return string
3392 */
3393 if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
3394 !strchr(str, '/')) || strchr(str, '\''))
3395 return str;
3396
3397 /*
3398 * Split option from value, we only need to calculate the value
3399 */
3400 tmp = strchr(str, '=');
3401 if (!tmp)
3402 return str;
3403
3404 tmp++;
3405
3406 /*
3407 * Prevent buffer overflows; such a case isn't reasonable anyway
3408 */
3409 if (strlen(str) >= 128 || strlen(tmp) > 100)
3410 return str;
3411
3412 sprintf(buf, "which %s > /dev/null", BC_APP);
3413 if (system(buf)) {
3414 log_err("fio: bc is needed for performing math\n");
3415 return NULL;
3416 }
3417
3418 sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
3419 f = popen(buf, "r");
3420 if (!f)
3421 return NULL;
3422
3423 ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
3424 if (ret <= 0)
3425 return NULL;
3426
3427 pclose(f);
3428 buf[(tmp - str) + ret - 1] = '\0';
3429 memcpy(buf, str, tmp - str);
3430 free(str);
3431 return strdup(buf);
3432}
3433
3434/*
3435 * Return a copy of the input string with substrings of the form ${VARNAME}
3436 * substituted with the value of the environment variable VARNAME. The
3437 * substitution always occurs, even if VARNAME is empty or the corresponding
3438 * environment variable undefined.
3439 */
3440static char *option_dup_subs(const char *opt)
3441{
3442 char out[OPT_LEN_MAX+1];
3443 char in[OPT_LEN_MAX+1];
3444 char *outptr = out;
3445 char *inptr = in;
3446 char *ch1, *ch2, *env;
3447 ssize_t nchr = OPT_LEN_MAX;
3448 size_t envlen;
3449
3450 if (strlen(opt) + 1 > OPT_LEN_MAX) {
3451 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
3452 return NULL;
3453 }
3454
3455 in[OPT_LEN_MAX] = '\0';
3456 strncpy(in, opt, OPT_LEN_MAX);
3457
3458 while (*inptr && nchr > 0) {
3459 if (inptr[0] == '$' && inptr[1] == '{') {
3460 ch2 = strchr(inptr, '}');
3461 if (ch2 && inptr+1 < ch2) {
3462 ch1 = inptr+2;
3463 inptr = ch2+1;
3464 *ch2 = '\0';
3465
3466 env = getenv(ch1);
3467 if (env) {
3468 envlen = strlen(env);
3469 if (envlen <= nchr) {
3470 memcpy(outptr, env, envlen);
3471 outptr += envlen;
3472 nchr -= envlen;
3473 }
3474 }
3475
3476 continue;
3477 }
3478 }
3479
3480 *outptr++ = *inptr++;
3481 --nchr;
3482 }
3483
3484 *outptr = '\0';
3485 return strdup(out);
3486}
3487
3488/*
3489 * Look for reserved variable names and replace them with real values
3490 */
3491static char *fio_keyword_replace(char *opt)
3492{
3493 char *s;
3494 int i;
3495 int docalc = 0;
3496
3497 for (i = 0; fio_keywords[i].word != NULL; i++) {
3498 struct fio_keyword *kw = &fio_keywords[i];
3499
3500 while ((s = strstr(opt, kw->word)) != NULL) {
3501 char *new = malloc(strlen(opt) + 1);
3502 char *o_org = opt;
3503 int olen = s - opt;
3504 int len;
3505
3506 /*
3507 * Copy part of the string before the keyword and
3508 * sprintf() the replacement after it.
3509 */
3510 memcpy(new, opt, olen);
3511 len = sprintf(new + olen, "%s", kw->replace);
3512
3513 /*
3514 * If there's more in the original string, copy that
3515 * in too
3516 */
3517 opt += strlen(kw->word) + olen;
3518 if (strlen(opt))
3519 memcpy(new + olen + len, opt, opt - o_org - 1);
3520
3521 /*
3522 * replace opt and free the old opt
3523 */
3524 opt = new;
3525 free(o_org);
3526
3527 docalc = 1;
3528 }
3529 }
3530
3531 /*
3532 * Check for potential math and invoke bc, if possible
3533 */
3534 if (docalc)
3535 opt = bc_calc(opt);
3536
3537 return opt;
3538}
3539
3540static char **dup_and_sub_options(char **opts, int num_opts)
3541{
3542 int i;
3543 char **opts_copy = malloc(num_opts * sizeof(*opts));
3544 for (i = 0; i < num_opts; i++) {
3545 opts_copy[i] = option_dup_subs(opts[i]);
3546 if (!opts_copy[i])
3547 continue;
3548 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
3549 }
3550 return opts_copy;
3551}
3552
3553int fio_options_parse(struct thread_data *td, char **opts, int num_opts,
3554 int dump_cmdline)
3555{
3556 int i, ret, unknown;
3557 char **opts_copy;
3558
3559 sort_options(opts, fio_options, num_opts);
3560 opts_copy = dup_and_sub_options(opts, num_opts);
3561
3562 for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
3563 struct fio_option *o;
3564 int newret = parse_option(opts_copy[i], opts[i], fio_options,
3565 &o, td, dump_cmdline);
3566
3567 if (opts_copy[i]) {
3568 if (newret && !o) {
3569 unknown++;
3570 continue;
3571 }
3572 free(opts_copy[i]);
3573 opts_copy[i] = NULL;
3574 }
3575
3576 ret |= newret;
3577 }
3578
3579 if (unknown) {
3580 ret |= ioengine_load(td);
3581 if (td->eo) {
3582 sort_options(opts_copy, td->io_ops->options, num_opts);
3583 opts = opts_copy;
3584 }
3585 for (i = 0; i < num_opts; i++) {
3586 struct fio_option *o = NULL;
3587 int newret = 1;
3588 if (!opts_copy[i])
3589 continue;
3590
3591 if (td->eo)
3592 newret = parse_option(opts_copy[i], opts[i],
3593 td->io_ops->options, &o,
3594 td->eo, dump_cmdline);
3595
3596 ret |= newret;
3597 if (!o)
3598 log_err("Bad option <%s>\n", opts[i]);
3599
3600 free(opts_copy[i]);
3601 opts_copy[i] = NULL;
3602 }
3603 }
3604
3605 free(opts_copy);
3606 return ret;
3607}
3608
3609int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
3610{
3611 return parse_cmd_option(opt, val, fio_options, td);
3612}
3613
3614int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
3615 char *val)
3616{
3617 return parse_cmd_option(opt, val, td->io_ops->options, td->eo);
3618}
3619
3620void fio_fill_default_options(struct thread_data *td)
3621{
3622 fill_default_options(td, fio_options);
3623}
3624
3625int fio_show_option_help(const char *opt)
3626{
3627 return show_cmd_help(fio_options, opt);
3628}
3629
3630void options_mem_dupe(void *data, struct fio_option *options)
3631{
3632 struct fio_option *o;
3633 char **ptr;
3634
3635 for (o = &options[0]; o->name; o++) {
3636 if (o->type != FIO_OPT_STR_STORE)
3637 continue;
3638
3639 ptr = td_var(data, o->off1);
3640 if (*ptr)
3641 *ptr = strdup(*ptr);
3642 }
3643}
3644
3645/*
3646 * dupe FIO_OPT_STR_STORE options
3647 */
3648void fio_options_mem_dupe(struct thread_data *td)
3649{
3650 options_mem_dupe(&td->o, fio_options);
3651
3652 if (td->eo && td->io_ops) {
3653 void *oldeo = td->eo;
3654
3655 td->eo = malloc(td->io_ops->option_struct_size);
3656 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
3657 options_mem_dupe(td->eo, td->io_ops->options);
3658 }
3659}
3660
3661unsigned int fio_get_kb_base(void *data)
3662{
3663 struct thread_options *o = data;
3664 unsigned int kb_base = 0;
3665
3666 if (o)
3667 kb_base = o->kb_base;
3668 if (!kb_base)
3669 kb_base = 1024;
3670
3671 return kb_base;
3672}
3673
3674int add_option(struct fio_option *o)
3675{
3676 struct fio_option *__o;
3677 int opt_index = 0;
3678
3679 __o = fio_options;
3680 while (__o->name) {
3681 opt_index++;
3682 __o++;
3683 }
3684
3685 memcpy(&fio_options[opt_index], o, sizeof(*o));
3686 return 0;
3687}
3688
3689void invalidate_profile_options(const char *prof_name)
3690{
3691 struct fio_option *o;
3692
3693 o = fio_options;
3694 while (o->name) {
3695 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
3696 o->type = FIO_OPT_INVALID;
3697 o->prof_name = NULL;
3698 }
3699 o++;
3700 }
3701}
3702
3703void add_opt_posval(const char *optname, const char *ival, const char *help)
3704{
3705 struct fio_option *o;
3706 unsigned int i;
3707
3708 o = find_option(fio_options, optname);
3709 if (!o)
3710 return;
3711
3712 for (i = 0; i < PARSE_MAX_VP; i++) {
3713 if (o->posval[i].ival)
3714 continue;
3715
3716 o->posval[i].ival = ival;
3717 o->posval[i].help = help;
3718 break;
3719 }
3720}
3721
3722void del_opt_posval(const char *optname, const char *ival)
3723{
3724 struct fio_option *o;
3725 unsigned int i;
3726
3727 o = find_option(fio_options, optname);
3728 if (!o)
3729 return;
3730
3731 for (i = 0; i < PARSE_MAX_VP; i++) {
3732 if (!o->posval[i].ival)
3733 continue;
3734 if (strcmp(o->posval[i].ival, ival))
3735 continue;
3736
3737 o->posval[i].ival = NULL;
3738 o->posval[i].help = NULL;
3739 }
3740}
3741
3742void fio_options_free(struct thread_data *td)
3743{
3744 options_free(fio_options, td);
3745 if (td->eo && td->io_ops && td->io_ops->options) {
3746 options_free(td->io_ops->options, td->eo);
3747 free(td->eo);
3748 td->eo = NULL;
3749 }
3750}
3751
3752struct fio_option *fio_option_find(const char *name)
3753{
3754 return find_option(fio_options, name);
3755}
3756
fio - Flexible IO Tester