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fio: provide an option for a startdelay range
[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_lockfile_cb(void *data, const char fio_unused *str)
825{
826 struct thread_data *td = data;
827
828 if (td->files_index) {
829 log_err("fio: lockfile= option must precede filename=\n");
830 return 1;
831 }
832
833 return 0;
834}
835
836static int str_opendir_cb(void *data, const char fio_unused *str)
837{
838 struct thread_data *td = data;
839
840 if (parse_dryrun())
841 return 0;
842
843 if (!td->files_index)
844 td->o.nr_files = 0;
845
846 return add_dir_files(td, td->o.opendir);
847}
848
849static int pattern_cb(char *pattern, unsigned int max_size,
850 const char *input, unsigned int *pattern_bytes)
851{
852 long off;
853 int i = 0, j = 0, len, k, base = 10;
854 uint32_t pattern_length;
855 char *loc1, *loc2;
856
857 loc1 = strstr(input, "0x");
858 loc2 = strstr(input, "0X");
859 if (loc1 || loc2)
860 base = 16;
861 off = strtol(input, NULL, base);
862 if (off != LONG_MAX || errno != ERANGE) {
863 while (off) {
864 pattern[i] = off & 0xff;
865 off >>= 8;
866 i++;
867 }
868 } else {
869 len = strlen(input);
870 k = len - 1;
871 if (base == 16) {
872 if (loc1)
873 j = loc1 - input + 2;
874 else
875 j = loc2 - input + 2;
876 } else
877 return 1;
878 if (len - j < max_size * 2) {
879 while (k >= j) {
880 off = converthexchartoint(input[k--]);
881 if (k >= j)
882 off += (converthexchartoint(input[k--])
883 * 16);
884 pattern[i++] = (char) off;
885 }
886 }
887 }
888
889 /*
890 * Fill the pattern all the way to the end. This greatly reduces
891 * the number of memcpy's we have to do when verifying the IO.
892 */
893 pattern_length = i;
894 while (i > 1 && i * 2 <= max_size) {
895 memcpy(&pattern[i], &pattern[0], i);
896 i *= 2;
897 }
898
899 /*
900 * Fill remainder, if the pattern multiple ends up not being
901 * max_size.
902 */
903 while (i > 1 && i < max_size) {
904 unsigned int b = min(pattern_length, max_size - i);
905
906 memcpy(&pattern[i], &pattern[0], b);
907 i += b;
908 }
909
910 if (i == 1) {
911 /*
912 * The code in verify_io_u_pattern assumes a single byte pattern
913 * fills the whole verify pattern buffer.
914 */
915 memset(pattern, pattern[0], max_size);
916 }
917
918 *pattern_bytes = i;
919 return 0;
920}
921
922static int str_buffer_pattern_cb(void *data, const char *input)
923{
924 struct thread_data *td = data;
925 int ret;
926
927 ret = pattern_cb(td->o.buffer_pattern, MAX_PATTERN_SIZE, input,
928 &td->o.buffer_pattern_bytes);
929
930 if (!ret) {
931 td->o.refill_buffers = 0;
932 td->o.scramble_buffers = 0;
933 td->o.zero_buffers = 0;
934 }
935
936 return ret;
937}
938
939static int str_verify_pattern_cb(void *data, const char *input)
940{
941 struct thread_data *td = data;
942 int ret;
943
944 ret = pattern_cb(td->o.verify_pattern, MAX_PATTERN_SIZE, input,
945 &td->o.verify_pattern_bytes);
946
947 /*
948 * VERIFY_META could already be set
949 */
950 if (!ret && td->o.verify == VERIFY_NONE)
951 td->o.verify = VERIFY_PATTERN;
952
953 return ret;
954}
955
956static int str_gtod_reduce_cb(void *data, int *il)
957{
958 struct thread_data *td = data;
959 int val = *il;
960
961 td->o.disable_lat = !!val;
962 td->o.disable_clat = !!val;
963 td->o.disable_slat = !!val;
964 td->o.disable_bw = !!val;
965 td->o.clat_percentiles = !val;
966 if (val)
967 td->tv_cache_mask = 63;
968
969 return 0;
970}
971
972static int str_gtod_cpu_cb(void *data, long long *il)
973{
974 struct thread_data *td = data;
975 int val = *il;
976
977 td->o.gtod_cpu = val;
978 td->o.gtod_offload = 1;
979 return 0;
980}
981
982static int str_size_cb(void *data, unsigned long long *__val)
983{
984 struct thread_data *td = data;
985 unsigned long long v = *__val;
986
987 if (parse_is_percent(v)) {
988 td->o.size = 0;
989 td->o.size_percent = -1ULL - v;
990 } else
991 td->o.size = v;
992
993 return 0;
994}
995
996static int rw_verify(struct fio_option *o, void *data)
997{
998 struct thread_data *td = data;
999
1000 if (read_only && td_write(td)) {
1001 log_err("fio: job <%s> has write bit set, but fio is in"
1002 " read-only mode\n", td->o.name);
1003 return 1;
1004 }
1005
1006 return 0;
1007}
1008
1009static int gtod_cpu_verify(struct fio_option *o, void *data)
1010{
1011#ifndef FIO_HAVE_CPU_AFFINITY
1012 struct thread_data *td = data;
1013
1014 if (td->o.gtod_cpu) {
1015 log_err("fio: platform must support CPU affinity for"
1016 "gettimeofday() offloading\n");
1017 return 1;
1018 }
1019#endif
1020
1021 return 0;
1022}
1023
1024/*
1025 * Option grouping
1026 */
1027static struct opt_group fio_opt_groups[] = {
1028 {
1029 .name = "General",
1030 .mask = FIO_OPT_C_GENERAL,
1031 },
1032 {
1033 .name = "I/O",
1034 .mask = FIO_OPT_C_IO,
1035 },
1036 {
1037 .name = "File",
1038 .mask = FIO_OPT_C_FILE,
1039 },
1040 {
1041 .name = "Statistics",
1042 .mask = FIO_OPT_C_STAT,
1043 },
1044 {
1045 .name = "Logging",
1046 .mask = FIO_OPT_C_LOG,
1047 },
1048 {
1049 .name = "Profiles",
1050 .mask = FIO_OPT_C_PROFILE,
1051 },
1052 {
1053 .name = NULL,
1054 },
1055};
1056
1057static struct opt_group *__opt_group_from_mask(struct opt_group *ogs, unsigned int *mask,
1058 unsigned int inv_mask)
1059{
1060 struct opt_group *og;
1061 int i;
1062
1063 if (*mask == inv_mask || !*mask)
1064 return NULL;
1065
1066 for (i = 0; ogs[i].name; i++) {
1067 og = &ogs[i];
1068
1069 if (*mask & og->mask) {
1070 *mask &= ~(og->mask);
1071 return og;
1072 }
1073 }
1074
1075 return NULL;
1076}
1077
1078struct opt_group *opt_group_from_mask(unsigned int *mask)
1079{
1080 return __opt_group_from_mask(fio_opt_groups, mask, FIO_OPT_C_INVALID);
1081}
1082
1083static struct opt_group fio_opt_cat_groups[] = {
1084 {
1085 .name = "Latency profiling",
1086 .mask = FIO_OPT_G_LATPROF,
1087 },
1088 {
1089 .name = "Rate",
1090 .mask = FIO_OPT_G_RATE,
1091 },
1092 {
1093 .name = "Zone",
1094 .mask = FIO_OPT_G_ZONE,
1095 },
1096 {
1097 .name = "Read/write mix",
1098 .mask = FIO_OPT_G_RWMIX,
1099 },
1100 {
1101 .name = "Verify",
1102 .mask = FIO_OPT_G_VERIFY,
1103 },
1104 {
1105 .name = "Trim",
1106 .mask = FIO_OPT_G_TRIM,
1107 },
1108 {
1109 .name = "I/O Logging",
1110 .mask = FIO_OPT_G_IOLOG,
1111 },
1112 {
1113 .name = "I/O Depth",
1114 .mask = FIO_OPT_G_IO_DEPTH,
1115 },
1116 {
1117 .name = "I/O Flow",
1118 .mask = FIO_OPT_G_IO_FLOW,
1119 },
1120 {
1121 .name = "Description",
1122 .mask = FIO_OPT_G_DESC,
1123 },
1124 {
1125 .name = "Filename",
1126 .mask = FIO_OPT_G_FILENAME,
1127 },
1128 {
1129 .name = "General I/O",
1130 .mask = FIO_OPT_G_IO_BASIC,
1131 },
1132 {
1133 .name = "Cgroups",
1134 .mask = FIO_OPT_G_CGROUP,
1135 },
1136 {
1137 .name = "Runtime",
1138 .mask = FIO_OPT_G_RUNTIME,
1139 },
1140 {
1141 .name = "Process",
1142 .mask = FIO_OPT_G_PROCESS,
1143 },
1144 {
1145 .name = "Job credentials / priority",
1146 .mask = FIO_OPT_G_CRED,
1147 },
1148 {
1149 .name = "Clock settings",
1150 .mask = FIO_OPT_G_CLOCK,
1151 },
1152 {
1153 .name = "I/O Type",
1154 .mask = FIO_OPT_G_IO_TYPE,
1155 },
1156 {
1157 .name = "I/O Thinktime",
1158 .mask = FIO_OPT_G_THINKTIME,
1159 },
1160 {
1161 .name = "Randomizations",
1162 .mask = FIO_OPT_G_RANDOM,
1163 },
1164 {
1165 .name = "I/O buffers",
1166 .mask = FIO_OPT_G_IO_BUF,
1167 },
1168 {
1169 .name = "Tiobench profile",
1170 .mask = FIO_OPT_G_TIOBENCH,
1171 },
1172
1173 {
1174 .name = NULL,
1175 }
1176};
1177
1178struct opt_group *opt_group_cat_from_mask(unsigned int *mask)
1179{
1180 return __opt_group_from_mask(fio_opt_cat_groups, mask, FIO_OPT_G_INVALID);
1181}
1182
1183/*
1184 * Map of job/command line options
1185 */
1186struct fio_option fio_options[FIO_MAX_OPTS] = {
1187 {
1188 .name = "description",
1189 .lname = "Description of job",
1190 .type = FIO_OPT_STR_STORE,
1191 .off1 = td_var_offset(description),
1192 .help = "Text job description",
1193 .category = FIO_OPT_C_GENERAL,
1194 .group = FIO_OPT_G_DESC,
1195 },
1196 {
1197 .name = "name",
1198 .lname = "Job name",
1199 .type = FIO_OPT_STR_STORE,
1200 .off1 = td_var_offset(name),
1201 .help = "Name of this job",
1202 .category = FIO_OPT_C_GENERAL,
1203 .group = FIO_OPT_G_DESC,
1204 },
1205 {
1206 .name = "filename",
1207 .lname = "Filename(s)",
1208 .type = FIO_OPT_STR_STORE,
1209 .off1 = td_var_offset(filename),
1210 .cb = str_filename_cb,
1211 .prio = -1, /* must come after "directory" */
1212 .help = "File(s) to use for the workload",
1213 .category = FIO_OPT_C_FILE,
1214 .group = FIO_OPT_G_FILENAME,
1215 },
1216 {
1217 .name = "directory",
1218 .lname = "Directory",
1219 .type = FIO_OPT_STR_STORE,
1220 .off1 = td_var_offset(directory),
1221 .cb = str_directory_cb,
1222 .help = "Directory to store files in",
1223 .category = FIO_OPT_C_FILE,
1224 .group = FIO_OPT_G_FILENAME,
1225 },
1226 {
1227 .name = "filename_format",
1228 .type = FIO_OPT_STR_STORE,
1229 .off1 = td_var_offset(filename_format),
1230 .prio = -1, /* must come after "directory" */
1231 .help = "Override default $jobname.$jobnum.$filenum naming",
1232 .def = "$jobname.$jobnum.$filenum",
1233 .category = FIO_OPT_C_FILE,
1234 .group = FIO_OPT_G_FILENAME,
1235 },
1236 {
1237 .name = "lockfile",
1238 .lname = "Lockfile",
1239 .type = FIO_OPT_STR,
1240 .off1 = td_var_offset(file_lock_mode),
1241 .help = "Lock file when doing IO to it",
1242 .prio = 1,
1243 .parent = "filename",
1244 .hide = 0,
1245 .def = "none",
1246 .cb = str_lockfile_cb,
1247 .category = FIO_OPT_C_FILE,
1248 .group = FIO_OPT_G_FILENAME,
1249 .posval = {
1250 { .ival = "none",
1251 .oval = FILE_LOCK_NONE,
1252 .help = "No file locking",
1253 },
1254 { .ival = "exclusive",
1255 .oval = FILE_LOCK_EXCLUSIVE,
1256 .help = "Exclusive file lock",
1257 },
1258 {
1259 .ival = "readwrite",
1260 .oval = FILE_LOCK_READWRITE,
1261 .help = "Read vs write lock",
1262 },
1263 },
1264 },
1265 {
1266 .name = "opendir",
1267 .lname = "Open directory",
1268 .type = FIO_OPT_STR_STORE,
1269 .off1 = td_var_offset(opendir),
1270 .cb = str_opendir_cb,
1271 .help = "Recursively add files from this directory and down",
1272 .category = FIO_OPT_C_FILE,
1273 .group = FIO_OPT_G_FILENAME,
1274 },
1275 {
1276 .name = "rw",
1277 .lname = "Read/write",
1278 .alias = "readwrite",
1279 .type = FIO_OPT_STR,
1280 .cb = str_rw_cb,
1281 .off1 = td_var_offset(td_ddir),
1282 .help = "IO direction",
1283 .def = "read",
1284 .verify = rw_verify,
1285 .category = FIO_OPT_C_IO,
1286 .group = FIO_OPT_G_IO_BASIC,
1287 .posval = {
1288 { .ival = "read",
1289 .oval = TD_DDIR_READ,
1290 .help = "Sequential read",
1291 },
1292 { .ival = "write",
1293 .oval = TD_DDIR_WRITE,
1294 .help = "Sequential write",
1295 },
1296 { .ival = "trim",
1297 .oval = TD_DDIR_TRIM,
1298 .help = "Sequential trim",
1299 },
1300 { .ival = "randread",
1301 .oval = TD_DDIR_RANDREAD,
1302 .help = "Random read",
1303 },
1304 { .ival = "randwrite",
1305 .oval = TD_DDIR_RANDWRITE,
1306 .help = "Random write",
1307 },
1308 { .ival = "randtrim",
1309 .oval = TD_DDIR_RANDTRIM,
1310 .help = "Random trim",
1311 },
1312 { .ival = "rw",
1313 .oval = TD_DDIR_RW,
1314 .help = "Sequential read and write mix",
1315 },
1316 { .ival = "readwrite",
1317 .oval = TD_DDIR_RW,
1318 .help = "Sequential read and write mix",
1319 },
1320 { .ival = "randrw",
1321 .oval = TD_DDIR_RANDRW,
1322 .help = "Random read and write mix"
1323 },
1324 },
1325 },
1326 {
1327 .name = "rw_sequencer",
1328 .lname = "RW Sequencer",
1329 .type = FIO_OPT_STR,
1330 .off1 = td_var_offset(rw_seq),
1331 .help = "IO offset generator modifier",
1332 .def = "sequential",
1333 .category = FIO_OPT_C_IO,
1334 .group = FIO_OPT_G_IO_BASIC,
1335 .posval = {
1336 { .ival = "sequential",
1337 .oval = RW_SEQ_SEQ,
1338 .help = "Generate sequential offsets",
1339 },
1340 { .ival = "identical",
1341 .oval = RW_SEQ_IDENT,
1342 .help = "Generate identical offsets",
1343 },
1344 },
1345 },
1346
1347 {
1348 .name = "ioengine",
1349 .lname = "IO Engine",
1350 .type = FIO_OPT_STR_STORE,
1351 .off1 = td_var_offset(ioengine),
1352 .help = "IO engine to use",
1353 .def = FIO_PREFERRED_ENGINE,
1354 .category = FIO_OPT_C_IO,
1355 .group = FIO_OPT_G_IO_BASIC,
1356 .posval = {
1357 { .ival = "sync",
1358 .help = "Use read/write",
1359 },
1360 { .ival = "psync",
1361 .help = "Use pread/pwrite",
1362 },
1363 { .ival = "vsync",
1364 .help = "Use readv/writev",
1365 },
1366#ifdef CONFIG_PWRITEV
1367 { .ival = "pvsync",
1368 .help = "Use preadv/pwritev",
1369 },
1370#endif
1371#ifdef CONFIG_LIBAIO
1372 { .ival = "libaio",
1373 .help = "Linux native asynchronous IO",
1374 },
1375#endif
1376#ifdef CONFIG_POSIXAIO
1377 { .ival = "posixaio",
1378 .help = "POSIX asynchronous IO",
1379 },
1380#endif
1381#ifdef CONFIG_SOLARISAIO
1382 { .ival = "solarisaio",
1383 .help = "Solaris native asynchronous IO",
1384 },
1385#endif
1386#ifdef CONFIG_WINDOWSAIO
1387 { .ival = "windowsaio",
1388 .help = "Windows native asynchronous IO"
1389 },
1390#endif
1391#ifdef CONFIG_RBD
1392 { .ival = "rbd",
1393 .help = "Rados Block Device asynchronous IO"
1394 },
1395#endif
1396 { .ival = "mmap",
1397 .help = "Memory mapped IO"
1398 },
1399#ifdef CONFIG_LINUX_SPLICE
1400 { .ival = "splice",
1401 .help = "splice/vmsplice based IO",
1402 },
1403 { .ival = "netsplice",
1404 .help = "splice/vmsplice to/from the network",
1405 },
1406#endif
1407#ifdef FIO_HAVE_SGIO
1408 { .ival = "sg",
1409 .help = "SCSI generic v3 IO",
1410 },
1411#endif
1412 { .ival = "null",
1413 .help = "Testing engine (no data transfer)",
1414 },
1415 { .ival = "net",
1416 .help = "Network IO",
1417 },
1418 { .ival = "cpuio",
1419 .help = "CPU cycle burner engine",
1420 },
1421#ifdef CONFIG_GUASI
1422 { .ival = "guasi",
1423 .help = "GUASI IO engine",
1424 },
1425#endif
1426#ifdef FIO_HAVE_BINJECT
1427 { .ival = "binject",
1428 .help = "binject direct inject block engine",
1429 },
1430#endif
1431#ifdef CONFIG_RDMA
1432 { .ival = "rdma",
1433 .help = "RDMA IO engine",
1434 },
1435#endif
1436#ifdef CONFIG_FUSION_AW
1437 { .ival = "fusion-aw-sync",
1438 .help = "Fusion-io atomic write engine",
1439 },
1440#endif
1441#ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
1442 { .ival = "e4defrag",
1443 .help = "ext4 defrag engine",
1444 },
1445#endif
1446#ifdef CONFIG_LINUX_FALLOCATE
1447 { .ival = "falloc",
1448 .help = "fallocate() file based engine",
1449 },
1450#endif
1451 { .ival = "external",
1452 .help = "Load external engine (append name)",
1453 },
1454 },
1455 },
1456 {
1457 .name = "iodepth",
1458 .lname = "IO Depth",
1459 .type = FIO_OPT_INT,
1460 .off1 = td_var_offset(iodepth),
1461 .help = "Number of IO buffers to keep in flight",
1462 .minval = 1,
1463 .interval = 1,
1464 .def = "1",
1465 .category = FIO_OPT_C_IO,
1466 .group = FIO_OPT_G_IO_BASIC,
1467 },
1468 {
1469 .name = "iodepth_batch",
1470 .lname = "IO Depth batch",
1471 .alias = "iodepth_batch_submit",
1472 .type = FIO_OPT_INT,
1473 .off1 = td_var_offset(iodepth_batch),
1474 .help = "Number of IO buffers to submit in one go",
1475 .parent = "iodepth",
1476 .hide = 1,
1477 .minval = 1,
1478 .interval = 1,
1479 .def = "1",
1480 .category = FIO_OPT_C_IO,
1481 .group = FIO_OPT_G_IO_BASIC,
1482 },
1483 {
1484 .name = "iodepth_batch_complete",
1485 .lname = "IO Depth batch complete",
1486 .type = FIO_OPT_INT,
1487 .off1 = td_var_offset(iodepth_batch_complete),
1488 .help = "Number of IO buffers to retrieve in one go",
1489 .parent = "iodepth",
1490 .hide = 1,
1491 .minval = 0,
1492 .interval = 1,
1493 .def = "1",
1494 .category = FIO_OPT_C_IO,
1495 .group = FIO_OPT_G_IO_BASIC,
1496 },
1497 {
1498 .name = "iodepth_low",
1499 .lname = "IO Depth batch low",
1500 .type = FIO_OPT_INT,
1501 .off1 = td_var_offset(iodepth_low),
1502 .help = "Low water mark for queuing depth",
1503 .parent = "iodepth",
1504 .hide = 1,
1505 .interval = 1,
1506 .category = FIO_OPT_C_IO,
1507 .group = FIO_OPT_G_IO_BASIC,
1508 },
1509 {
1510 .name = "size",
1511 .lname = "Size",
1512 .type = FIO_OPT_STR_VAL,
1513 .cb = str_size_cb,
1514 .help = "Total size of device or files",
1515 .interval = 1024 * 1024,
1516 .category = FIO_OPT_C_IO,
1517 .group = FIO_OPT_G_INVALID,
1518 },
1519 {
1520 .name = "fill_device",
1521 .lname = "Fill device",
1522 .alias = "fill_fs",
1523 .type = FIO_OPT_BOOL,
1524 .off1 = td_var_offset(fill_device),
1525 .help = "Write until an ENOSPC error occurs",
1526 .def = "0",
1527 .category = FIO_OPT_C_FILE,
1528 .group = FIO_OPT_G_INVALID,
1529 },
1530 {
1531 .name = "filesize",
1532 .lname = "File size",
1533 .type = FIO_OPT_STR_VAL,
1534 .off1 = td_var_offset(file_size_low),
1535 .off2 = td_var_offset(file_size_high),
1536 .minval = 1,
1537 .help = "Size of individual files",
1538 .interval = 1024 * 1024,
1539 .category = FIO_OPT_C_FILE,
1540 .group = FIO_OPT_G_INVALID,
1541 },
1542 {
1543 .name = "offset",
1544 .lname = "IO offset",
1545 .alias = "fileoffset",
1546 .type = FIO_OPT_STR_VAL,
1547 .off1 = td_var_offset(start_offset),
1548 .help = "Start IO from this offset",
1549 .def = "0",
1550 .interval = 1024 * 1024,
1551 .category = FIO_OPT_C_IO,
1552 .group = FIO_OPT_G_INVALID,
1553 },
1554 {
1555 .name = "offset_increment",
1556 .lname = "IO offset increment",
1557 .type = FIO_OPT_STR_VAL,
1558 .off1 = td_var_offset(offset_increment),
1559 .help = "What is the increment from one offset to the next",
1560 .parent = "offset",
1561 .hide = 1,
1562 .def = "0",
1563 .interval = 1024 * 1024,
1564 .category = FIO_OPT_C_IO,
1565 .group = FIO_OPT_G_INVALID,
1566 },
1567 {
1568 .name = "number_ios",
1569 .lname = "Number of IOs to perform",
1570 .type = FIO_OPT_STR_VAL,
1571 .off1 = td_var_offset(number_ios),
1572 .help = "Force job completion of this number of IOs",
1573 .def = "0",
1574 .category = FIO_OPT_C_IO,
1575 .group = FIO_OPT_G_INVALID,
1576 },
1577 {
1578 .name = "bs",
1579 .lname = "Block size",
1580 .alias = "blocksize",
1581 .type = FIO_OPT_INT,
1582 .off1 = td_var_offset(bs[DDIR_READ]),
1583 .off2 = td_var_offset(bs[DDIR_WRITE]),
1584 .off3 = td_var_offset(bs[DDIR_TRIM]),
1585 .minval = 1,
1586 .help = "Block size unit",
1587 .def = "4k",
1588 .parent = "rw",
1589 .hide = 1,
1590 .interval = 512,
1591 .category = FIO_OPT_C_IO,
1592 .group = FIO_OPT_G_INVALID,
1593 },
1594 {
1595 .name = "ba",
1596 .lname = "Block size align",
1597 .alias = "blockalign",
1598 .type = FIO_OPT_INT,
1599 .off1 = td_var_offset(ba[DDIR_READ]),
1600 .off2 = td_var_offset(ba[DDIR_WRITE]),
1601 .off3 = td_var_offset(ba[DDIR_TRIM]),
1602 .minval = 1,
1603 .help = "IO block offset alignment",
1604 .parent = "rw",
1605 .hide = 1,
1606 .interval = 512,
1607 .category = FIO_OPT_C_IO,
1608 .group = FIO_OPT_G_INVALID,
1609 },
1610 {
1611 .name = "bsrange",
1612 .lname = "Block size range",
1613 .alias = "blocksize_range",
1614 .type = FIO_OPT_RANGE,
1615 .off1 = td_var_offset(min_bs[DDIR_READ]),
1616 .off2 = td_var_offset(max_bs[DDIR_READ]),
1617 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
1618 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
1619 .off5 = td_var_offset(min_bs[DDIR_TRIM]),
1620 .off6 = td_var_offset(max_bs[DDIR_TRIM]),
1621 .minval = 1,
1622 .help = "Set block size range (in more detail than bs)",
1623 .parent = "rw",
1624 .hide = 1,
1625 .interval = 4096,
1626 .category = FIO_OPT_C_IO,
1627 .group = FIO_OPT_G_INVALID,
1628 },
1629 {
1630 .name = "bssplit",
1631 .lname = "Block size split",
1632 .type = FIO_OPT_STR,
1633 .cb = str_bssplit_cb,
1634 .help = "Set a specific mix of block sizes",
1635 .parent = "rw",
1636 .hide = 1,
1637 .category = FIO_OPT_C_IO,
1638 .group = FIO_OPT_G_INVALID,
1639 },
1640 {
1641 .name = "bs_unaligned",
1642 .lname = "Block size unaligned",
1643 .alias = "blocksize_unaligned",
1644 .type = FIO_OPT_STR_SET,
1645 .off1 = td_var_offset(bs_unaligned),
1646 .help = "Don't sector align IO buffer sizes",
1647 .parent = "rw",
1648 .hide = 1,
1649 .category = FIO_OPT_C_IO,
1650 .group = FIO_OPT_G_INVALID,
1651 },
1652 {
1653 .name = "bs_is_seq_rand",
1654 .lname = "Block size division is seq/random (not read/write)",
1655 .type = FIO_OPT_BOOL,
1656 .off1 = td_var_offset(bs_is_seq_rand),
1657 .help = "Consider any blocksize setting to be sequential,ramdom",
1658 .def = "0",
1659 .parent = "blocksize",
1660 .category = FIO_OPT_C_IO,
1661 .group = FIO_OPT_G_INVALID,
1662 },
1663 {
1664 .name = "randrepeat",
1665 .lname = "Random repeatable",
1666 .type = FIO_OPT_BOOL,
1667 .off1 = td_var_offset(rand_repeatable),
1668 .help = "Use repeatable random IO pattern",
1669 .def = "1",
1670 .parent = "rw",
1671 .hide = 1,
1672 .category = FIO_OPT_C_IO,
1673 .group = FIO_OPT_G_RANDOM,
1674 },
1675 {
1676 .name = "randseed",
1677 .lname = "The random generator seed",
1678 .type = FIO_OPT_STR_VAL,
1679 .off1 = td_var_offset(rand_seed),
1680 .help = "Set the random generator seed value",
1681 .parent = "rw",
1682 .category = FIO_OPT_C_IO,
1683 .group = FIO_OPT_G_RANDOM,
1684 },
1685 {
1686 .name = "use_os_rand",
1687 .lname = "Use OS random",
1688 .type = FIO_OPT_BOOL,
1689 .off1 = td_var_offset(use_os_rand),
1690 .help = "Set to use OS random generator",
1691 .def = "0",
1692 .parent = "rw",
1693 .hide = 1,
1694 .category = FIO_OPT_C_IO,
1695 .group = FIO_OPT_G_RANDOM,
1696 },
1697 {
1698 .name = "norandommap",
1699 .lname = "No randommap",
1700 .type = FIO_OPT_STR_SET,
1701 .off1 = td_var_offset(norandommap),
1702 .help = "Accept potential duplicate random blocks",
1703 .parent = "rw",
1704 .hide = 1,
1705 .hide_on_set = 1,
1706 .category = FIO_OPT_C_IO,
1707 .group = FIO_OPT_G_RANDOM,
1708 },
1709 {
1710 .name = "softrandommap",
1711 .lname = "Soft randommap",
1712 .type = FIO_OPT_BOOL,
1713 .off1 = td_var_offset(softrandommap),
1714 .help = "Set norandommap if randommap allocation fails",
1715 .parent = "norandommap",
1716 .hide = 1,
1717 .def = "0",
1718 .category = FIO_OPT_C_IO,
1719 .group = FIO_OPT_G_RANDOM,
1720 },
1721 {
1722 .name = "random_generator",
1723 .type = FIO_OPT_STR,
1724 .off1 = td_var_offset(random_generator),
1725 .help = "Type of random number generator to use",
1726 .def = "tausworthe",
1727 .posval = {
1728 { .ival = "tausworthe",
1729 .oval = FIO_RAND_GEN_TAUSWORTHE,
1730 .help = "Strong Tausworthe generator",
1731 },
1732 { .ival = "lfsr",
1733 .oval = FIO_RAND_GEN_LFSR,
1734 .help = "Variable length LFSR",
1735 },
1736 },
1737 .category = FIO_OPT_C_IO,
1738 .group = FIO_OPT_G_RANDOM,
1739 },
1740 {
1741 .name = "random_distribution",
1742 .type = FIO_OPT_STR,
1743 .off1 = td_var_offset(random_distribution),
1744 .cb = str_random_distribution_cb,
1745 .help = "Random offset distribution generator",
1746 .def = "random",
1747 .posval = {
1748 { .ival = "random",
1749 .oval = FIO_RAND_DIST_RANDOM,
1750 .help = "Completely random",
1751 },
1752 { .ival = "zipf",
1753 .oval = FIO_RAND_DIST_ZIPF,
1754 .help = "Zipf distribution",
1755 },
1756 { .ival = "pareto",
1757 .oval = FIO_RAND_DIST_PARETO,
1758 .help = "Pareto distribution",
1759 },
1760 },
1761 .category = FIO_OPT_C_IO,
1762 .group = FIO_OPT_G_RANDOM,
1763 },
1764 {
1765 .name = "percentage_random",
1766 .lname = "Percentage Random",
1767 .type = FIO_OPT_INT,
1768 .off1 = td_var_offset(perc_rand[DDIR_READ]),
1769 .off2 = td_var_offset(perc_rand[DDIR_WRITE]),
1770 .off3 = td_var_offset(perc_rand[DDIR_TRIM]),
1771 .maxval = 100,
1772 .help = "Percentage of seq/random mix that should be random",
1773 .def = "100,100,100",
1774 .interval = 5,
1775 .inverse = "percentage_sequential",
1776 .category = FIO_OPT_C_IO,
1777 .group = FIO_OPT_G_RANDOM,
1778 },
1779 {
1780 .name = "percentage_sequential",
1781 .lname = "Percentage Sequential",
1782 .type = FIO_OPT_DEPRECATED,
1783 .category = FIO_OPT_C_IO,
1784 .group = FIO_OPT_G_RANDOM,
1785 },
1786 {
1787 .name = "allrandrepeat",
1788 .type = FIO_OPT_BOOL,
1789 .off1 = td_var_offset(allrand_repeatable),
1790 .help = "Use repeatable random numbers for everything",
1791 .def = "0",
1792 },
1793 {
1794 .name = "nrfiles",
1795 .lname = "Number of files",
1796 .alias = "nr_files",
1797 .type = FIO_OPT_INT,
1798 .off1 = td_var_offset(nr_files),
1799 .help = "Split job workload between this number of files",
1800 .def = "1",
1801 .interval = 1,
1802 .category = FIO_OPT_C_FILE,
1803 .group = FIO_OPT_G_INVALID,
1804 },
1805 {
1806 .name = "openfiles",
1807 .lname = "Number of open files",
1808 .type = FIO_OPT_INT,
1809 .off1 = td_var_offset(open_files),
1810 .help = "Number of files to keep open at the same time",
1811 .category = FIO_OPT_C_FILE,
1812 .group = FIO_OPT_G_INVALID,
1813 },
1814 {
1815 .name = "file_service_type",
1816 .lname = "File service type",
1817 .type = FIO_OPT_STR,
1818 .cb = str_fst_cb,
1819 .off1 = td_var_offset(file_service_type),
1820 .help = "How to select which file to service next",
1821 .def = "roundrobin",
1822 .category = FIO_OPT_C_FILE,
1823 .group = FIO_OPT_G_INVALID,
1824 .posval = {
1825 { .ival = "random",
1826 .oval = FIO_FSERVICE_RANDOM,
1827 .help = "Choose a file at random",
1828 },
1829 { .ival = "roundrobin",
1830 .oval = FIO_FSERVICE_RR,
1831 .help = "Round robin select files",
1832 },
1833 { .ival = "sequential",
1834 .oval = FIO_FSERVICE_SEQ,
1835 .help = "Finish one file before moving to the next",
1836 },
1837 },
1838 .parent = "nrfiles",
1839 .hide = 1,
1840 },
1841#ifdef CONFIG_POSIX_FALLOCATE
1842 {
1843 .name = "fallocate",
1844 .lname = "Fallocate",
1845 .type = FIO_OPT_STR,
1846 .off1 = td_var_offset(fallocate_mode),
1847 .help = "Whether pre-allocation is performed when laying out files",
1848 .def = "posix",
1849 .category = FIO_OPT_C_FILE,
1850 .group = FIO_OPT_G_INVALID,
1851 .posval = {
1852 { .ival = "none",
1853 .oval = FIO_FALLOCATE_NONE,
1854 .help = "Do not pre-allocate space",
1855 },
1856 { .ival = "posix",
1857 .oval = FIO_FALLOCATE_POSIX,
1858 .help = "Use posix_fallocate()",
1859 },
1860#ifdef CONFIG_LINUX_FALLOCATE
1861 { .ival = "keep",
1862 .oval = FIO_FALLOCATE_KEEP_SIZE,
1863 .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
1864 },
1865#endif
1866 /* Compatibility with former boolean values */
1867 { .ival = "0",
1868 .oval = FIO_FALLOCATE_NONE,
1869 .help = "Alias for 'none'",
1870 },
1871 { .ival = "1",
1872 .oval = FIO_FALLOCATE_POSIX,
1873 .help = "Alias for 'posix'",
1874 },
1875 },
1876 },
1877#endif /* CONFIG_POSIX_FALLOCATE */
1878 {
1879 .name = "fadvise_hint",
1880 .lname = "Fadvise hint",
1881 .type = FIO_OPT_BOOL,
1882 .off1 = td_var_offset(fadvise_hint),
1883 .help = "Use fadvise() to advise the kernel on IO pattern",
1884 .def = "1",
1885 .category = FIO_OPT_C_FILE,
1886 .group = FIO_OPT_G_INVALID,
1887 },
1888 {
1889 .name = "fsync",
1890 .lname = "Fsync",
1891 .type = FIO_OPT_INT,
1892 .off1 = td_var_offset(fsync_blocks),
1893 .help = "Issue fsync for writes every given number of blocks",
1894 .def = "0",
1895 .interval = 1,
1896 .category = FIO_OPT_C_FILE,
1897 .group = FIO_OPT_G_INVALID,
1898 },
1899 {
1900 .name = "fdatasync",
1901 .lname = "Fdatasync",
1902 .type = FIO_OPT_INT,
1903 .off1 = td_var_offset(fdatasync_blocks),
1904 .help = "Issue fdatasync for writes every given number of blocks",
1905 .def = "0",
1906 .interval = 1,
1907 .category = FIO_OPT_C_FILE,
1908 .group = FIO_OPT_G_INVALID,
1909 },
1910 {
1911 .name = "write_barrier",
1912 .lname = "Write barrier",
1913 .type = FIO_OPT_INT,
1914 .off1 = td_var_offset(barrier_blocks),
1915 .help = "Make every Nth write a barrier write",
1916 .def = "0",
1917 .interval = 1,
1918 .category = FIO_OPT_C_IO,
1919 .group = FIO_OPT_G_INVALID,
1920 },
1921#ifdef CONFIG_SYNC_FILE_RANGE
1922 {
1923 .name = "sync_file_range",
1924 .lname = "Sync file range",
1925 .posval = {
1926 { .ival = "wait_before",
1927 .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
1928 .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
1929 .orval = 1,
1930 },
1931 { .ival = "write",
1932 .oval = SYNC_FILE_RANGE_WRITE,
1933 .help = "SYNC_FILE_RANGE_WRITE",
1934 .orval = 1,
1935 },
1936 {
1937 .ival = "wait_after",
1938 .oval = SYNC_FILE_RANGE_WAIT_AFTER,
1939 .help = "SYNC_FILE_RANGE_WAIT_AFTER",
1940 .orval = 1,
1941 },
1942 },
1943 .type = FIO_OPT_STR_MULTI,
1944 .cb = str_sfr_cb,
1945 .off1 = td_var_offset(sync_file_range),
1946 .help = "Use sync_file_range()",
1947 .category = FIO_OPT_C_FILE,
1948 .group = FIO_OPT_G_INVALID,
1949 },
1950#endif
1951 {
1952 .name = "direct",
1953 .lname = "Direct I/O",
1954 .type = FIO_OPT_BOOL,
1955 .off1 = td_var_offset(odirect),
1956 .help = "Use O_DIRECT IO (negates buffered)",
1957 .def = "0",
1958 .inverse = "buffered",
1959 .category = FIO_OPT_C_IO,
1960 .group = FIO_OPT_G_IO_TYPE,
1961 },
1962 {
1963 .name = "atomic",
1964 .lname = "Atomic I/O",
1965 .type = FIO_OPT_BOOL,
1966 .off1 = td_var_offset(oatomic),
1967 .help = "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
1968 .def = "0",
1969 .category = FIO_OPT_C_IO,
1970 .group = FIO_OPT_G_IO_TYPE,
1971 },
1972 {
1973 .name = "buffered",
1974 .lname = "Buffered I/O",
1975 .type = FIO_OPT_BOOL,
1976 .off1 = td_var_offset(odirect),
1977 .neg = 1,
1978 .help = "Use buffered IO (negates direct)",
1979 .def = "1",
1980 .inverse = "direct",
1981 .category = FIO_OPT_C_IO,
1982 .group = FIO_OPT_G_IO_TYPE,
1983 },
1984 {
1985 .name = "overwrite",
1986 .lname = "Overwrite",
1987 .type = FIO_OPT_BOOL,
1988 .off1 = td_var_offset(overwrite),
1989 .help = "When writing, set whether to overwrite current data",
1990 .def = "0",
1991 .category = FIO_OPT_C_FILE,
1992 .group = FIO_OPT_G_INVALID,
1993 },
1994 {
1995 .name = "loops",
1996 .lname = "Loops",
1997 .type = FIO_OPT_INT,
1998 .off1 = td_var_offset(loops),
1999 .help = "Number of times to run the job",
2000 .def = "1",
2001 .interval = 1,
2002 .category = FIO_OPT_C_GENERAL,
2003 .group = FIO_OPT_G_RUNTIME,
2004 },
2005 {
2006 .name = "numjobs",
2007 .lname = "Number of jobs",
2008 .type = FIO_OPT_INT,
2009 .off1 = td_var_offset(numjobs),
2010 .help = "Duplicate this job this many times",
2011 .def = "1",
2012 .interval = 1,
2013 .category = FIO_OPT_C_GENERAL,
2014 .group = FIO_OPT_G_RUNTIME,
2015 },
2016 {
2017 .name = "startdelay",
2018 .lname = "Start delay",
2019 .type = FIO_OPT_STR_VAL_TIME,
2020 .off1 = td_var_offset(start_delay),
2021 .off2 = td_var_offset(start_delay_high),
2022 .help = "Only start job when this period has passed",
2023 .def = "0",
2024 .category = FIO_OPT_C_GENERAL,
2025 .group = FIO_OPT_G_RUNTIME,
2026 },
2027 {
2028 .name = "runtime",
2029 .lname = "Runtime",
2030 .alias = "timeout",
2031 .type = FIO_OPT_STR_VAL_TIME,
2032 .off1 = td_var_offset(timeout),
2033 .help = "Stop workload when this amount of time has passed",
2034 .def = "0",
2035 .category = FIO_OPT_C_GENERAL,
2036 .group = FIO_OPT_G_RUNTIME,
2037 },
2038 {
2039 .name = "time_based",
2040 .lname = "Time based",
2041 .type = FIO_OPT_STR_SET,
2042 .off1 = td_var_offset(time_based),
2043 .help = "Keep running until runtime/timeout is met",
2044 .category = FIO_OPT_C_GENERAL,
2045 .group = FIO_OPT_G_RUNTIME,
2046 },
2047 {
2048 .name = "verify_only",
2049 .lname = "Verify only",
2050 .type = FIO_OPT_STR_SET,
2051 .off1 = td_var_offset(verify_only),
2052 .help = "Verifies previously written data is still valid",
2053 .category = FIO_OPT_C_GENERAL,
2054 .group = FIO_OPT_G_RUNTIME,
2055 },
2056 {
2057 .name = "ramp_time",
2058 .lname = "Ramp time",
2059 .type = FIO_OPT_STR_VAL_TIME,
2060 .off1 = td_var_offset(ramp_time),
2061 .help = "Ramp up time before measuring performance",
2062 .category = FIO_OPT_C_GENERAL,
2063 .group = FIO_OPT_G_RUNTIME,
2064 },
2065 {
2066 .name = "clocksource",
2067 .lname = "Clock source",
2068 .type = FIO_OPT_STR,
2069 .cb = fio_clock_source_cb,
2070 .off1 = td_var_offset(clocksource),
2071 .help = "What type of timing source to use",
2072 .category = FIO_OPT_C_GENERAL,
2073 .group = FIO_OPT_G_CLOCK,
2074 .posval = {
2075#ifdef CONFIG_GETTIMEOFDAY
2076 { .ival = "gettimeofday",
2077 .oval = CS_GTOD,
2078 .help = "Use gettimeofday(2) for timing",
2079 },
2080#endif
2081#ifdef CONFIG_CLOCK_GETTIME
2082 { .ival = "clock_gettime",
2083 .oval = CS_CGETTIME,
2084 .help = "Use clock_gettime(2) for timing",
2085 },
2086#endif
2087#ifdef ARCH_HAVE_CPU_CLOCK
2088 { .ival = "cpu",
2089 .oval = CS_CPUCLOCK,
2090 .help = "Use CPU private clock",
2091 },
2092#endif
2093 },
2094 },
2095 {
2096 .name = "mem",
2097 .alias = "iomem",
2098 .lname = "I/O Memory",
2099 .type = FIO_OPT_STR,
2100 .cb = str_mem_cb,
2101 .off1 = td_var_offset(mem_type),
2102 .help = "Backing type for IO buffers",
2103 .def = "malloc",
2104 .category = FIO_OPT_C_IO,
2105 .group = FIO_OPT_G_INVALID,
2106 .posval = {
2107 { .ival = "malloc",
2108 .oval = MEM_MALLOC,
2109 .help = "Use malloc(3) for IO buffers",
2110 },
2111 { .ival = "shm",
2112 .oval = MEM_SHM,
2113 .help = "Use shared memory segments for IO buffers",
2114 },
2115#ifdef FIO_HAVE_HUGETLB
2116 { .ival = "shmhuge",
2117 .oval = MEM_SHMHUGE,
2118 .help = "Like shm, but use huge pages",
2119 },
2120#endif
2121 { .ival = "mmap",
2122 .oval = MEM_MMAP,
2123 .help = "Use mmap(2) (file or anon) for IO buffers",
2124 },
2125#ifdef FIO_HAVE_HUGETLB
2126 { .ival = "mmaphuge",
2127 .oval = MEM_MMAPHUGE,
2128 .help = "Like mmap, but use huge pages",
2129 },
2130#endif
2131 },
2132 },
2133 {
2134 .name = "iomem_align",
2135 .alias = "mem_align",
2136 .lname = "I/O memory alignment",
2137 .type = FIO_OPT_INT,
2138 .off1 = td_var_offset(mem_align),
2139 .minval = 0,
2140 .help = "IO memory buffer offset alignment",
2141 .def = "0",
2142 .parent = "iomem",
2143 .hide = 1,
2144 .category = FIO_OPT_C_IO,
2145 .group = FIO_OPT_G_INVALID,
2146 },
2147 {
2148 .name = "verify",
2149 .lname = "Verify",
2150 .type = FIO_OPT_STR,
2151 .off1 = td_var_offset(verify),
2152 .help = "Verify data written",
2153 .def = "0",
2154 .category = FIO_OPT_C_IO,
2155 .group = FIO_OPT_G_VERIFY,
2156 .posval = {
2157 { .ival = "0",
2158 .oval = VERIFY_NONE,
2159 .help = "Don't do IO verification",
2160 },
2161 { .ival = "md5",
2162 .oval = VERIFY_MD5,
2163 .help = "Use md5 checksums for verification",
2164 },
2165 { .ival = "crc64",
2166 .oval = VERIFY_CRC64,
2167 .help = "Use crc64 checksums for verification",
2168 },
2169 { .ival = "crc32",
2170 .oval = VERIFY_CRC32,
2171 .help = "Use crc32 checksums for verification",
2172 },
2173 { .ival = "crc32c-intel",
2174 .oval = VERIFY_CRC32C,
2175 .help = "Use crc32c checksums for verification (hw assisted, if available)",
2176 },
2177 { .ival = "crc32c",
2178 .oval = VERIFY_CRC32C,
2179 .help = "Use crc32c checksums for verification (hw assisted, if available)",
2180 },
2181 { .ival = "crc16",
2182 .oval = VERIFY_CRC16,
2183 .help = "Use crc16 checksums for verification",
2184 },
2185 { .ival = "crc7",
2186 .oval = VERIFY_CRC7,
2187 .help = "Use crc7 checksums for verification",
2188 },
2189 { .ival = "sha1",
2190 .oval = VERIFY_SHA1,
2191 .help = "Use sha1 checksums for verification",
2192 },
2193 { .ival = "sha256",
2194 .oval = VERIFY_SHA256,
2195 .help = "Use sha256 checksums for verification",
2196 },
2197 { .ival = "sha512",
2198 .oval = VERIFY_SHA512,
2199 .help = "Use sha512 checksums for verification",
2200 },
2201 { .ival = "meta",
2202 .oval = VERIFY_META,
2203 .help = "Use io information",
2204 },
2205 {
2206 .ival = "null",
2207 .oval = VERIFY_NULL,
2208 .help = "Pretend to verify",
2209 },
2210 },
2211 },
2212 {
2213 .name = "do_verify",
2214 .lname = "Perform verify step",
2215 .type = FIO_OPT_BOOL,
2216 .off1 = td_var_offset(do_verify),
2217 .help = "Run verification stage after write",
2218 .def = "1",
2219 .parent = "verify",
2220 .hide = 1,
2221 .category = FIO_OPT_C_IO,
2222 .group = FIO_OPT_G_VERIFY,
2223 },
2224 {
2225 .name = "verifysort",
2226 .lname = "Verify sort",
2227 .type = FIO_OPT_BOOL,
2228 .off1 = td_var_offset(verifysort),
2229 .help = "Sort written verify blocks for read back",
2230 .def = "1",
2231 .parent = "verify",
2232 .hide = 1,
2233 .category = FIO_OPT_C_IO,
2234 .group = FIO_OPT_G_VERIFY,
2235 },
2236 {
2237 .name = "verifysort_nr",
2238 .type = FIO_OPT_INT,
2239 .off1 = td_var_offset(verifysort_nr),
2240 .help = "Pre-load and sort verify blocks for a read workload",
2241 .minval = 0,
2242 .maxval = 131072,
2243 .def = "1024",
2244 .parent = "verify",
2245 .category = FIO_OPT_C_IO,
2246 .group = FIO_OPT_G_VERIFY,
2247 },
2248 {
2249 .name = "verify_interval",
2250 .lname = "Verify interval",
2251 .type = FIO_OPT_INT,
2252 .off1 = td_var_offset(verify_interval),
2253 .minval = 2 * sizeof(struct verify_header),
2254 .help = "Store verify buffer header every N bytes",
2255 .parent = "verify",
2256 .hide = 1,
2257 .interval = 2 * sizeof(struct verify_header),
2258 .category = FIO_OPT_C_IO,
2259 .group = FIO_OPT_G_VERIFY,
2260 },
2261 {
2262 .name = "verify_offset",
2263 .lname = "Verify offset",
2264 .type = FIO_OPT_INT,
2265 .help = "Offset verify header location by N bytes",
2266 .off1 = td_var_offset(verify_offset),
2267 .minval = sizeof(struct verify_header),
2268 .parent = "verify",
2269 .hide = 1,
2270 .category = FIO_OPT_C_IO,
2271 .group = FIO_OPT_G_VERIFY,
2272 },
2273 {
2274 .name = "verify_pattern",
2275 .lname = "Verify pattern",
2276 .type = FIO_OPT_STR,
2277 .cb = str_verify_pattern_cb,
2278 .help = "Fill pattern for IO buffers",
2279 .parent = "verify",
2280 .hide = 1,
2281 .category = FIO_OPT_C_IO,
2282 .group = FIO_OPT_G_VERIFY,
2283 },
2284 {
2285 .name = "verify_fatal",
2286 .lname = "Verify fatal",
2287 .type = FIO_OPT_BOOL,
2288 .off1 = td_var_offset(verify_fatal),
2289 .def = "0",
2290 .help = "Exit on a single verify failure, don't continue",
2291 .parent = "verify",
2292 .hide = 1,
2293 .category = FIO_OPT_C_IO,
2294 .group = FIO_OPT_G_VERIFY,
2295 },
2296 {
2297 .name = "verify_dump",
2298 .lname = "Verify dump",
2299 .type = FIO_OPT_BOOL,
2300 .off1 = td_var_offset(verify_dump),
2301 .def = "0",
2302 .help = "Dump contents of good and bad blocks on failure",
2303 .parent = "verify",
2304 .hide = 1,
2305 .category = FIO_OPT_C_IO,
2306 .group = FIO_OPT_G_VERIFY,
2307 },
2308 {
2309 .name = "verify_async",
2310 .lname = "Verify asynchronously",
2311 .type = FIO_OPT_INT,
2312 .off1 = td_var_offset(verify_async),
2313 .def = "0",
2314 .help = "Number of async verifier threads to use",
2315 .parent = "verify",
2316 .hide = 1,
2317 .category = FIO_OPT_C_IO,
2318 .group = FIO_OPT_G_VERIFY,
2319 },
2320 {
2321 .name = "verify_backlog",
2322 .lname = "Verify backlog",
2323 .type = FIO_OPT_STR_VAL,
2324 .off1 = td_var_offset(verify_backlog),
2325 .help = "Verify after this number of blocks are written",
2326 .parent = "verify",
2327 .hide = 1,
2328 .category = FIO_OPT_C_IO,
2329 .group = FIO_OPT_G_VERIFY,
2330 },
2331 {
2332 .name = "verify_backlog_batch",
2333 .lname = "Verify backlog batch",
2334 .type = FIO_OPT_INT,
2335 .off1 = td_var_offset(verify_batch),
2336 .help = "Verify this number of IO blocks",
2337 .parent = "verify",
2338 .hide = 1,
2339 .category = FIO_OPT_C_IO,
2340 .group = FIO_OPT_G_VERIFY,
2341 },
2342#ifdef FIO_HAVE_CPU_AFFINITY
2343 {
2344 .name = "verify_async_cpus",
2345 .lname = "Async verify CPUs",
2346 .type = FIO_OPT_STR,
2347 .cb = str_verify_cpus_allowed_cb,
2348 .help = "Set CPUs allowed for async verify threads",
2349 .parent = "verify_async",
2350 .hide = 1,
2351 .category = FIO_OPT_C_IO,
2352 .group = FIO_OPT_G_VERIFY,
2353 },
2354#endif
2355 {
2356 .name = "experimental_verify",
2357 .off1 = td_var_offset(experimental_verify),
2358 .type = FIO_OPT_BOOL,
2359 .help = "Enable experimental verification",
2360 .category = FIO_OPT_C_IO,
2361 .group = FIO_OPT_G_VERIFY,
2362 },
2363#ifdef FIO_HAVE_TRIM
2364 {
2365 .name = "trim_percentage",
2366 .lname = "Trim percentage",
2367 .type = FIO_OPT_INT,
2368 .off1 = td_var_offset(trim_percentage),
2369 .minval = 0,
2370 .maxval = 100,
2371 .help = "Number of verify blocks to discard/trim",
2372 .parent = "verify",
2373 .def = "0",
2374 .interval = 1,
2375 .hide = 1,
2376 .category = FIO_OPT_C_IO,
2377 .group = FIO_OPT_G_TRIM,
2378 },
2379 {
2380 .name = "trim_verify_zero",
2381 .lname = "Verify trim zero",
2382 .type = FIO_OPT_BOOL,
2383 .help = "Verify that trim/discarded blocks are returned as zeroes",
2384 .off1 = td_var_offset(trim_zero),
2385 .parent = "trim_percentage",
2386 .hide = 1,
2387 .def = "1",
2388 .category = FIO_OPT_C_IO,
2389 .group = FIO_OPT_G_TRIM,
2390 },
2391 {
2392 .name = "trim_backlog",
2393 .lname = "Trim backlog",
2394 .type = FIO_OPT_STR_VAL,
2395 .off1 = td_var_offset(trim_backlog),
2396 .help = "Trim after this number of blocks are written",
2397 .parent = "trim_percentage",
2398 .hide = 1,
2399 .interval = 1,
2400 .category = FIO_OPT_C_IO,
2401 .group = FIO_OPT_G_TRIM,
2402 },
2403 {
2404 .name = "trim_backlog_batch",
2405 .lname = "Trim backlog batch",
2406 .type = FIO_OPT_INT,
2407 .off1 = td_var_offset(trim_batch),
2408 .help = "Trim this number of IO blocks",
2409 .parent = "trim_percentage",
2410 .hide = 1,
2411 .interval = 1,
2412 .category = FIO_OPT_C_IO,
2413 .group = FIO_OPT_G_TRIM,
2414 },
2415#endif
2416 {
2417 .name = "write_iolog",
2418 .lname = "Write I/O log",
2419 .type = FIO_OPT_STR_STORE,
2420 .off1 = td_var_offset(write_iolog_file),
2421 .help = "Store IO pattern to file",
2422 .category = FIO_OPT_C_IO,
2423 .group = FIO_OPT_G_IOLOG,
2424 },
2425 {
2426 .name = "read_iolog",
2427 .lname = "Read I/O log",
2428 .type = FIO_OPT_STR_STORE,
2429 .off1 = td_var_offset(read_iolog_file),
2430 .help = "Playback IO pattern from file",
2431 .category = FIO_OPT_C_IO,
2432 .group = FIO_OPT_G_IOLOG,
2433 },
2434 {
2435 .name = "replay_no_stall",
2436 .lname = "Don't stall on replay",
2437 .type = FIO_OPT_BOOL,
2438 .off1 = td_var_offset(no_stall),
2439 .def = "0",
2440 .parent = "read_iolog",
2441 .hide = 1,
2442 .help = "Playback IO pattern file as fast as possible without stalls",
2443 .category = FIO_OPT_C_IO,
2444 .group = FIO_OPT_G_IOLOG,
2445 },
2446 {
2447 .name = "replay_redirect",
2448 .lname = "Redirect device for replay",
2449 .type = FIO_OPT_STR_STORE,
2450 .off1 = td_var_offset(replay_redirect),
2451 .parent = "read_iolog",
2452 .hide = 1,
2453 .help = "Replay all I/O onto this device, regardless of trace device",
2454 .category = FIO_OPT_C_IO,
2455 .group = FIO_OPT_G_IOLOG,
2456 },
2457 {
2458 .name = "exec_prerun",
2459 .lname = "Pre-execute runnable",
2460 .type = FIO_OPT_STR_STORE,
2461 .off1 = td_var_offset(exec_prerun),
2462 .help = "Execute this file prior to running job",
2463 .category = FIO_OPT_C_GENERAL,
2464 .group = FIO_OPT_G_INVALID,
2465 },
2466 {
2467 .name = "exec_postrun",
2468 .lname = "Post-execute runnable",
2469 .type = FIO_OPT_STR_STORE,
2470 .off1 = td_var_offset(exec_postrun),
2471 .help = "Execute this file after running job",
2472 .category = FIO_OPT_C_GENERAL,
2473 .group = FIO_OPT_G_INVALID,
2474 },
2475#ifdef FIO_HAVE_IOSCHED_SWITCH
2476 {
2477 .name = "ioscheduler",
2478 .lname = "I/O scheduler",
2479 .type = FIO_OPT_STR_STORE,
2480 .off1 = td_var_offset(ioscheduler),
2481 .help = "Use this IO scheduler on the backing device",
2482 .category = FIO_OPT_C_FILE,
2483 .group = FIO_OPT_G_INVALID,
2484 },
2485#endif
2486 {
2487 .name = "zonesize",
2488 .lname = "Zone size",
2489 .type = FIO_OPT_STR_VAL,
2490 .off1 = td_var_offset(zone_size),
2491 .help = "Amount of data to read per zone",
2492 .def = "0",
2493 .interval = 1024 * 1024,
2494 .category = FIO_OPT_C_IO,
2495 .group = FIO_OPT_G_ZONE,
2496 },
2497 {
2498 .name = "zonerange",
2499 .lname = "Zone range",
2500 .type = FIO_OPT_STR_VAL,
2501 .off1 = td_var_offset(zone_range),
2502 .help = "Give size of an IO zone",
2503 .def = "0",
2504 .interval = 1024 * 1024,
2505 .category = FIO_OPT_C_IO,
2506 .group = FIO_OPT_G_ZONE,
2507 },
2508 {
2509 .name = "zoneskip",
2510 .lname = "Zone skip",
2511 .type = FIO_OPT_STR_VAL,
2512 .off1 = td_var_offset(zone_skip),
2513 .help = "Space between IO zones",
2514 .def = "0",
2515 .interval = 1024 * 1024,
2516 .category = FIO_OPT_C_IO,
2517 .group = FIO_OPT_G_ZONE,
2518 },
2519 {
2520 .name = "lockmem",
2521 .lname = "Lock memory",
2522 .type = FIO_OPT_STR_VAL,
2523 .off1 = td_var_offset(lockmem),
2524 .help = "Lock down this amount of memory (per worker)",
2525 .def = "0",
2526 .interval = 1024 * 1024,
2527 .category = FIO_OPT_C_GENERAL,
2528 .group = FIO_OPT_G_INVALID,
2529 },
2530 {
2531 .name = "rwmixread",
2532 .lname = "Read/write mix read",
2533 .type = FIO_OPT_INT,
2534 .cb = str_rwmix_read_cb,
2535 .maxval = 100,
2536 .help = "Percentage of mixed workload that is reads",
2537 .def = "50",
2538 .interval = 5,
2539 .inverse = "rwmixwrite",
2540 .category = FIO_OPT_C_IO,
2541 .group = FIO_OPT_G_RWMIX,
2542 },
2543 {
2544 .name = "rwmixwrite",
2545 .lname = "Read/write mix write",
2546 .type = FIO_OPT_INT,
2547 .cb = str_rwmix_write_cb,
2548 .maxval = 100,
2549 .help = "Percentage of mixed workload that is writes",
2550 .def = "50",
2551 .interval = 5,
2552 .inverse = "rwmixread",
2553 .category = FIO_OPT_C_IO,
2554 .group = FIO_OPT_G_RWMIX,
2555 },
2556 {
2557 .name = "rwmixcycle",
2558 .lname = "Read/write mix cycle",
2559 .type = FIO_OPT_DEPRECATED,
2560 .category = FIO_OPT_C_IO,
2561 .group = FIO_OPT_G_RWMIX,
2562 },
2563 {
2564 .name = "nice",
2565 .lname = "Nice",
2566 .type = FIO_OPT_INT,
2567 .off1 = td_var_offset(nice),
2568 .help = "Set job CPU nice value",
2569 .minval = -19,
2570 .maxval = 20,
2571 .def = "0",
2572 .interval = 1,
2573 .category = FIO_OPT_C_GENERAL,
2574 .group = FIO_OPT_G_CRED,
2575 },
2576#ifdef FIO_HAVE_IOPRIO
2577 {
2578 .name = "prio",
2579 .lname = "I/O nice priority",
2580 .type = FIO_OPT_INT,
2581 .off1 = td_var_offset(ioprio),
2582 .help = "Set job IO priority value",
2583 .minval = 0,
2584 .maxval = 7,
2585 .interval = 1,
2586 .category = FIO_OPT_C_GENERAL,
2587 .group = FIO_OPT_G_CRED,
2588 },
2589 {
2590 .name = "prioclass",
2591 .lname = "I/O nice priority class",
2592 .type = FIO_OPT_INT,
2593 .off1 = td_var_offset(ioprio_class),
2594 .help = "Set job IO priority class",
2595 .minval = 0,
2596 .maxval = 3,
2597 .interval = 1,
2598 .category = FIO_OPT_C_GENERAL,
2599 .group = FIO_OPT_G_CRED,
2600 },
2601#endif
2602 {
2603 .name = "thinktime",
2604 .lname = "Thinktime",
2605 .type = FIO_OPT_INT,
2606 .off1 = td_var_offset(thinktime),
2607 .help = "Idle time between IO buffers (usec)",
2608 .def = "0",
2609 .category = FIO_OPT_C_IO,
2610 .group = FIO_OPT_G_THINKTIME,
2611 },
2612 {
2613 .name = "thinktime_spin",
2614 .lname = "Thinktime spin",
2615 .type = FIO_OPT_INT,
2616 .off1 = td_var_offset(thinktime_spin),
2617 .help = "Start think time by spinning this amount (usec)",
2618 .def = "0",
2619 .parent = "thinktime",
2620 .hide = 1,
2621 .category = FIO_OPT_C_IO,
2622 .group = FIO_OPT_G_THINKTIME,
2623 },
2624 {
2625 .name = "thinktime_blocks",
2626 .lname = "Thinktime blocks",
2627 .type = FIO_OPT_INT,
2628 .off1 = td_var_offset(thinktime_blocks),
2629 .help = "IO buffer period between 'thinktime'",
2630 .def = "1",
2631 .parent = "thinktime",
2632 .hide = 1,
2633 .category = FIO_OPT_C_IO,
2634 .group = FIO_OPT_G_THINKTIME,
2635 },
2636 {
2637 .name = "rate",
2638 .lname = "I/O rate",
2639 .type = FIO_OPT_INT,
2640 .off1 = td_var_offset(rate[DDIR_READ]),
2641 .off2 = td_var_offset(rate[DDIR_WRITE]),
2642 .off3 = td_var_offset(rate[DDIR_TRIM]),
2643 .help = "Set bandwidth rate",
2644 .category = FIO_OPT_C_IO,
2645 .group = FIO_OPT_G_RATE,
2646 },
2647 {
2648 .name = "ratemin",
2649 .lname = "I/O min rate",
2650 .type = FIO_OPT_INT,
2651 .off1 = td_var_offset(ratemin[DDIR_READ]),
2652 .off2 = td_var_offset(ratemin[DDIR_WRITE]),
2653 .off3 = td_var_offset(ratemin[DDIR_TRIM]),
2654 .help = "Job must meet this rate or it will be shutdown",
2655 .parent = "rate",
2656 .hide = 1,
2657 .category = FIO_OPT_C_IO,
2658 .group = FIO_OPT_G_RATE,
2659 },
2660 {
2661 .name = "rate_iops",
2662 .lname = "I/O rate IOPS",
2663 .type = FIO_OPT_INT,
2664 .off1 = td_var_offset(rate_iops[DDIR_READ]),
2665 .off2 = td_var_offset(rate_iops[DDIR_WRITE]),
2666 .off3 = td_var_offset(rate_iops[DDIR_TRIM]),
2667 .help = "Limit IO used to this number of IO operations/sec",
2668 .hide = 1,
2669 .category = FIO_OPT_C_IO,
2670 .group = FIO_OPT_G_RATE,
2671 },
2672 {
2673 .name = "rate_iops_min",
2674 .lname = "I/O min rate IOPS",
2675 .type = FIO_OPT_INT,
2676 .off1 = td_var_offset(rate_iops_min[DDIR_READ]),
2677 .off2 = td_var_offset(rate_iops_min[DDIR_WRITE]),
2678 .off3 = td_var_offset(rate_iops_min[DDIR_TRIM]),
2679 .help = "Job must meet this rate or it will be shut down",
2680 .parent = "rate_iops",
2681 .hide = 1,
2682 .category = FIO_OPT_C_IO,
2683 .group = FIO_OPT_G_RATE,
2684 },
2685 {
2686 .name = "ratecycle",
2687 .lname = "I/O rate cycle",
2688 .type = FIO_OPT_INT,
2689 .off1 = td_var_offset(ratecycle),
2690 .help = "Window average for rate limits (msec)",
2691 .def = "1000",
2692 .parent = "rate",
2693 .hide = 1,
2694 .category = FIO_OPT_C_IO,
2695 .group = FIO_OPT_G_RATE,
2696 },
2697 {
2698 .name = "max_latency",
2699 .type = FIO_OPT_INT,
2700 .off1 = td_var_offset(max_latency),
2701 .help = "Maximum tolerated IO latency (usec)",
2702 .category = FIO_OPT_C_IO,
2703 .group = FIO_OPT_G_LATPROF,
2704 },
2705 {
2706 .name = "latency_target",
2707 .lname = "Latency Target (usec)",
2708 .type = FIO_OPT_STR_VAL_TIME,
2709 .off1 = td_var_offset(latency_target),
2710 .help = "Ramp to max queue depth supporting this latency",
2711 .category = FIO_OPT_C_IO,
2712 .group = FIO_OPT_G_LATPROF,
2713 },
2714 {
2715 .name = "latency_window",
2716 .lname = "Latency Window (usec)",
2717 .type = FIO_OPT_STR_VAL_TIME,
2718 .off1 = td_var_offset(latency_window),
2719 .help = "Time to sustain latency_target",
2720 .category = FIO_OPT_C_IO,
2721 .group = FIO_OPT_G_LATPROF,
2722 },
2723 {
2724 .name = "latency_percentile",
2725 .lname = "Latency Percentile",
2726 .type = FIO_OPT_FLOAT_LIST,
2727 .off1 = td_var_offset(latency_percentile),
2728 .help = "Percentile of IOs must be below latency_target",
2729 .def = "100",
2730 .maxlen = 1,
2731 .minfp = 0.0,
2732 .maxfp = 100.0,
2733 .category = FIO_OPT_C_IO,
2734 .group = FIO_OPT_G_LATPROF,
2735 },
2736 {
2737 .name = "invalidate",
2738 .lname = "Cache invalidate",
2739 .type = FIO_OPT_BOOL,
2740 .off1 = td_var_offset(invalidate_cache),
2741 .help = "Invalidate buffer/page cache prior to running job",
2742 .def = "1",
2743 .category = FIO_OPT_C_IO,
2744 .group = FIO_OPT_G_IO_TYPE,
2745 },
2746 {
2747 .name = "sync",
2748 .lname = "Synchronous I/O",
2749 .type = FIO_OPT_BOOL,
2750 .off1 = td_var_offset(sync_io),
2751 .help = "Use O_SYNC for buffered writes",
2752 .def = "0",
2753 .parent = "buffered",
2754 .hide = 1,
2755 .category = FIO_OPT_C_IO,
2756 .group = FIO_OPT_G_IO_TYPE,
2757 },
2758 {
2759 .name = "create_serialize",
2760 .lname = "Create serialize",
2761 .type = FIO_OPT_BOOL,
2762 .off1 = td_var_offset(create_serialize),
2763 .help = "Serialize creating of job files",
2764 .def = "1",
2765 .category = FIO_OPT_C_FILE,
2766 .group = FIO_OPT_G_INVALID,
2767 },
2768 {
2769 .name = "create_fsync",
2770 .lname = "Create fsync",
2771 .type = FIO_OPT_BOOL,
2772 .off1 = td_var_offset(create_fsync),
2773 .help = "fsync file after creation",
2774 .def = "1",
2775 .category = FIO_OPT_C_FILE,
2776 .group = FIO_OPT_G_INVALID,
2777 },
2778 {
2779 .name = "create_on_open",
2780 .lname = "Create on open",
2781 .type = FIO_OPT_BOOL,
2782 .off1 = td_var_offset(create_on_open),
2783 .help = "Create files when they are opened for IO",
2784 .def = "0",
2785 .category = FIO_OPT_C_FILE,
2786 .group = FIO_OPT_G_INVALID,
2787 },
2788 {
2789 .name = "create_only",
2790 .type = FIO_OPT_BOOL,
2791 .off1 = td_var_offset(create_only),
2792 .help = "Only perform file creation phase",
2793 .category = FIO_OPT_C_FILE,
2794 .def = "0",
2795 },
2796 {
2797 .name = "pre_read",
2798 .lname = "Pre-read files",
2799 .type = FIO_OPT_BOOL,
2800 .off1 = td_var_offset(pre_read),
2801 .help = "Pre-read files before starting official testing",
2802 .def = "0",
2803 .category = FIO_OPT_C_FILE,
2804 .group = FIO_OPT_G_INVALID,
2805 },
2806#ifdef FIO_HAVE_CPU_AFFINITY
2807 {
2808 .name = "cpumask",
2809 .lname = "CPU mask",
2810 .type = FIO_OPT_INT,
2811 .cb = str_cpumask_cb,
2812 .help = "CPU affinity mask",
2813 .category = FIO_OPT_C_GENERAL,
2814 .group = FIO_OPT_G_CRED,
2815 },
2816 {
2817 .name = "cpus_allowed",
2818 .lname = "CPUs allowed",
2819 .type = FIO_OPT_STR,
2820 .cb = str_cpus_allowed_cb,
2821 .help = "Set CPUs allowed",
2822 .category = FIO_OPT_C_GENERAL,
2823 .group = FIO_OPT_G_CRED,
2824 },
2825#endif
2826#ifdef CONFIG_LIBNUMA
2827 {
2828 .name = "numa_cpu_nodes",
2829 .type = FIO_OPT_STR,
2830 .cb = str_numa_cpunodes_cb,
2831 .help = "NUMA CPU nodes bind",
2832 .category = FIO_OPT_C_GENERAL,
2833 .group = FIO_OPT_G_INVALID,
2834 },
2835 {
2836 .name = "numa_mem_policy",
2837 .type = FIO_OPT_STR,
2838 .cb = str_numa_mpol_cb,
2839 .help = "NUMA memory policy setup",
2840 .category = FIO_OPT_C_GENERAL,
2841 .group = FIO_OPT_G_INVALID,
2842 },
2843#endif
2844 {
2845 .name = "end_fsync",
2846 .lname = "End fsync",
2847 .type = FIO_OPT_BOOL,
2848 .off1 = td_var_offset(end_fsync),
2849 .help = "Include fsync at the end of job",
2850 .def = "0",
2851 .category = FIO_OPT_C_FILE,
2852 .group = FIO_OPT_G_INVALID,
2853 },
2854 {
2855 .name = "fsync_on_close",
2856 .lname = "Fsync on close",
2857 .type = FIO_OPT_BOOL,
2858 .off1 = td_var_offset(fsync_on_close),
2859 .help = "fsync files on close",
2860 .def = "0",
2861 .category = FIO_OPT_C_FILE,
2862 .group = FIO_OPT_G_INVALID,
2863 },
2864 {
2865 .name = "unlink",
2866 .lname = "Unlink file",
2867 .type = FIO_OPT_BOOL,
2868 .off1 = td_var_offset(unlink),
2869 .help = "Unlink created files after job has completed",
2870 .def = "0",
2871 .category = FIO_OPT_C_FILE,
2872 .group = FIO_OPT_G_INVALID,
2873 },
2874 {
2875 .name = "exitall",
2876 .lname = "Exit-all on terminate",
2877 .type = FIO_OPT_STR_SET,
2878 .cb = str_exitall_cb,
2879 .help = "Terminate all jobs when one exits",
2880 .category = FIO_OPT_C_GENERAL,
2881 .group = FIO_OPT_G_PROCESS,
2882 },
2883 {
2884 .name = "stonewall",
2885 .lname = "Wait for previous",
2886 .alias = "wait_for_previous",
2887 .type = FIO_OPT_STR_SET,
2888 .off1 = td_var_offset(stonewall),
2889 .help = "Insert a hard barrier between this job and previous",
2890 .category = FIO_OPT_C_GENERAL,
2891 .group = FIO_OPT_G_PROCESS,
2892 },
2893 {
2894 .name = "new_group",
2895 .lname = "New group",
2896 .type = FIO_OPT_STR_SET,
2897 .off1 = td_var_offset(new_group),
2898 .help = "Mark the start of a new group (for reporting)",
2899 .category = FIO_OPT_C_GENERAL,
2900 .group = FIO_OPT_G_PROCESS,
2901 },
2902 {
2903 .name = "thread",
2904 .lname = "Thread",
2905 .type = FIO_OPT_STR_SET,
2906 .off1 = td_var_offset(use_thread),
2907 .help = "Use threads instead of processes",
2908 .category = FIO_OPT_C_GENERAL,
2909 .group = FIO_OPT_G_PROCESS,
2910 },
2911 {
2912 .name = "write_bw_log",
2913 .lname = "Write bandwidth log",
2914 .type = FIO_OPT_STR_STORE,
2915 .off1 = td_var_offset(bw_log_file),
2916 .help = "Write log of bandwidth during run",
2917 .category = FIO_OPT_C_LOG,
2918 .group = FIO_OPT_G_INVALID,
2919 },
2920 {
2921 .name = "write_lat_log",
2922 .lname = "Write latency log",
2923 .type = FIO_OPT_STR_STORE,
2924 .off1 = td_var_offset(lat_log_file),
2925 .help = "Write log of latency during run",
2926 .category = FIO_OPT_C_LOG,
2927 .group = FIO_OPT_G_INVALID,
2928 },
2929 {
2930 .name = "write_iops_log",
2931 .lname = "Write IOPS log",
2932 .type = FIO_OPT_STR_STORE,
2933 .off1 = td_var_offset(iops_log_file),
2934 .help = "Write log of IOPS during run",
2935 .category = FIO_OPT_C_LOG,
2936 .group = FIO_OPT_G_INVALID,
2937 },
2938 {
2939 .name = "log_avg_msec",
2940 .lname = "Log averaging (msec)",
2941 .type = FIO_OPT_INT,
2942 .off1 = td_var_offset(log_avg_msec),
2943 .help = "Average bw/iops/lat logs over this period of time",
2944 .def = "0",
2945 .category = FIO_OPT_C_LOG,
2946 .group = FIO_OPT_G_INVALID,
2947 },
2948 {
2949 .name = "bwavgtime",
2950 .lname = "Bandwidth average time",
2951 .type = FIO_OPT_INT,
2952 .off1 = td_var_offset(bw_avg_time),
2953 .help = "Time window over which to calculate bandwidth"
2954 " (msec)",
2955 .def = "500",
2956 .parent = "write_bw_log",
2957 .hide = 1,
2958 .interval = 100,
2959 .category = FIO_OPT_C_LOG,
2960 .group = FIO_OPT_G_INVALID,
2961 },
2962 {
2963 .name = "iopsavgtime",
2964 .lname = "IOPS average time",
2965 .type = FIO_OPT_INT,
2966 .off1 = td_var_offset(iops_avg_time),
2967 .help = "Time window over which to calculate IOPS (msec)",
2968 .def = "500",
2969 .parent = "write_iops_log",
2970 .hide = 1,
2971 .interval = 100,
2972 .category = FIO_OPT_C_LOG,
2973 .group = FIO_OPT_G_INVALID,
2974 },
2975 {
2976 .name = "group_reporting",
2977 .lname = "Group reporting",
2978 .type = FIO_OPT_STR_SET,
2979 .off1 = td_var_offset(group_reporting),
2980 .help = "Do reporting on a per-group basis",
2981 .category = FIO_OPT_C_STAT,
2982 .group = FIO_OPT_G_INVALID,
2983 },
2984 {
2985 .name = "zero_buffers",
2986 .lname = "Zero I/O buffers",
2987 .type = FIO_OPT_STR_SET,
2988 .off1 = td_var_offset(zero_buffers),
2989 .help = "Init IO buffers to all zeroes",
2990 .category = FIO_OPT_C_IO,
2991 .group = FIO_OPT_G_IO_BUF,
2992 },
2993 {
2994 .name = "refill_buffers",
2995 .lname = "Refill I/O buffers",
2996 .type = FIO_OPT_STR_SET,
2997 .off1 = td_var_offset(refill_buffers),
2998 .help = "Refill IO buffers on every IO submit",
2999 .category = FIO_OPT_C_IO,
3000 .group = FIO_OPT_G_IO_BUF,
3001 },
3002 {
3003 .name = "scramble_buffers",
3004 .lname = "Scramble I/O buffers",
3005 .type = FIO_OPT_BOOL,
3006 .off1 = td_var_offset(scramble_buffers),
3007 .help = "Slightly scramble buffers on every IO submit",
3008 .def = "1",
3009 .category = FIO_OPT_C_IO,
3010 .group = FIO_OPT_G_IO_BUF,
3011 },
3012 {
3013 .name = "buffer_pattern",
3014 .lname = "Buffer pattern",
3015 .type = FIO_OPT_STR,
3016 .cb = str_buffer_pattern_cb,
3017 .help = "Fill pattern for IO buffers",
3018 .category = FIO_OPT_C_IO,
3019 .group = FIO_OPT_G_IO_BUF,
3020 },
3021 {
3022 .name = "buffer_compress_percentage",
3023 .lname = "Buffer compression percentage",
3024 .type = FIO_OPT_INT,
3025 .off1 = td_var_offset(compress_percentage),
3026 .maxval = 100,
3027 .minval = 1,
3028 .help = "How compressible the buffer is (approximately)",
3029 .interval = 5,
3030 .category = FIO_OPT_C_IO,
3031 .group = FIO_OPT_G_IO_BUF,
3032 },
3033 {
3034 .name = "buffer_compress_chunk",
3035 .lname = "Buffer compression chunk size",
3036 .type = FIO_OPT_INT,
3037 .off1 = td_var_offset(compress_chunk),
3038 .parent = "buffer_compress_percentage",
3039 .hide = 1,
3040 .help = "Size of compressible region in buffer",
3041 .interval = 256,
3042 .category = FIO_OPT_C_IO,
3043 .group = FIO_OPT_G_IO_BUF,
3044 },
3045 {
3046 .name = "clat_percentiles",
3047 .lname = "Completion latency percentiles",
3048 .type = FIO_OPT_BOOL,
3049 .off1 = td_var_offset(clat_percentiles),
3050 .help = "Enable the reporting of completion latency percentiles",
3051 .def = "1",
3052 .category = FIO_OPT_C_STAT,
3053 .group = FIO_OPT_G_INVALID,
3054 },
3055 {
3056 .name = "percentile_list",
3057 .lname = "Completion latency percentile list",
3058 .type = FIO_OPT_FLOAT_LIST,
3059 .off1 = td_var_offset(percentile_list),
3060 .off2 = td_var_offset(percentile_precision),
3061 .help = "Specify a custom list of percentiles to report",
3062 .def = "1:5:10:20:30:40:50:60:70:80:90:95:99:99.5:99.9:99.95:99.99",
3063 .maxlen = FIO_IO_U_LIST_MAX_LEN,
3064 .minfp = 0.0,
3065 .maxfp = 100.0,
3066 .category = FIO_OPT_C_STAT,
3067 .group = FIO_OPT_G_INVALID,
3068 },
3069
3070#ifdef FIO_HAVE_DISK_UTIL
3071 {
3072 .name = "disk_util",
3073 .lname = "Disk utilization",
3074 .type = FIO_OPT_BOOL,
3075 .off1 = td_var_offset(do_disk_util),
3076 .help = "Log disk utilization statistics",
3077 .def = "1",
3078 .category = FIO_OPT_C_STAT,
3079 .group = FIO_OPT_G_INVALID,
3080 },
3081#endif
3082 {
3083 .name = "gtod_reduce",
3084 .lname = "Reduce gettimeofday() calls",
3085 .type = FIO_OPT_BOOL,
3086 .help = "Greatly reduce number of gettimeofday() calls",
3087 .cb = str_gtod_reduce_cb,
3088 .def = "0",
3089 .hide_on_set = 1,
3090 .category = FIO_OPT_C_STAT,
3091 .group = FIO_OPT_G_INVALID,
3092 },
3093 {
3094 .name = "disable_lat",
3095 .lname = "Disable all latency stats",
3096 .type = FIO_OPT_BOOL,
3097 .off1 = td_var_offset(disable_lat),
3098 .help = "Disable latency numbers",
3099 .parent = "gtod_reduce",
3100 .hide = 1,
3101 .def = "0",
3102 .category = FIO_OPT_C_STAT,
3103 .group = FIO_OPT_G_INVALID,
3104 },
3105 {
3106 .name = "disable_clat",
3107 .lname = "Disable completion latency stats",
3108 .type = FIO_OPT_BOOL,
3109 .off1 = td_var_offset(disable_clat),
3110 .help = "Disable completion latency numbers",
3111 .parent = "gtod_reduce",
3112 .hide = 1,
3113 .def = "0",
3114 .category = FIO_OPT_C_STAT,
3115 .group = FIO_OPT_G_INVALID,
3116 },
3117 {
3118 .name = "disable_slat",
3119 .lname = "Disable submission latency stats",
3120 .type = FIO_OPT_BOOL,
3121 .off1 = td_var_offset(disable_slat),
3122 .help = "Disable submission latency numbers",
3123 .parent = "gtod_reduce",
3124 .hide = 1,
3125 .def = "0",
3126 .category = FIO_OPT_C_STAT,
3127 .group = FIO_OPT_G_INVALID,
3128 },
3129 {
3130 .name = "disable_bw_measurement",
3131 .lname = "Disable bandwidth stats",
3132 .type = FIO_OPT_BOOL,
3133 .off1 = td_var_offset(disable_bw),
3134 .help = "Disable bandwidth logging",
3135 .parent = "gtod_reduce",
3136 .hide = 1,
3137 .def = "0",
3138 .category = FIO_OPT_C_STAT,
3139 .group = FIO_OPT_G_INVALID,
3140 },
3141 {
3142 .name = "gtod_cpu",
3143 .lname = "Dedicated gettimeofday() CPU",
3144 .type = FIO_OPT_INT,
3145 .cb = str_gtod_cpu_cb,
3146 .help = "Set up dedicated gettimeofday() thread on this CPU",
3147 .verify = gtod_cpu_verify,
3148 .category = FIO_OPT_C_GENERAL,
3149 .group = FIO_OPT_G_CLOCK,
3150 },
3151 {
3152 .name = "unified_rw_reporting",
3153 .type = FIO_OPT_BOOL,
3154 .off1 = td_var_offset(unified_rw_rep),
3155 .help = "Unify reporting across data direction",
3156 .def = "0",
3157 .category = FIO_OPT_C_GENERAL,
3158 .group = FIO_OPT_G_INVALID,
3159 },
3160 {
3161 .name = "continue_on_error",
3162 .lname = "Continue on error",
3163 .type = FIO_OPT_STR,
3164 .off1 = td_var_offset(continue_on_error),
3165 .help = "Continue on non-fatal errors during IO",
3166 .def = "none",
3167 .category = FIO_OPT_C_GENERAL,
3168 .group = FIO_OPT_G_ERR,
3169 .posval = {
3170 { .ival = "none",
3171 .oval = ERROR_TYPE_NONE,
3172 .help = "Exit when an error is encountered",
3173 },
3174 { .ival = "read",
3175 .oval = ERROR_TYPE_READ,
3176 .help = "Continue on read errors only",
3177 },
3178 { .ival = "write",
3179 .oval = ERROR_TYPE_WRITE,
3180 .help = "Continue on write errors only",
3181 },
3182 { .ival = "io",
3183 .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
3184 .help = "Continue on any IO errors",
3185 },
3186 { .ival = "verify",
3187 .oval = ERROR_TYPE_VERIFY,
3188 .help = "Continue on verify errors only",
3189 },
3190 { .ival = "all",
3191 .oval = ERROR_TYPE_ANY,
3192 .help = "Continue on all io and verify errors",
3193 },
3194 { .ival = "0",
3195 .oval = ERROR_TYPE_NONE,
3196 .help = "Alias for 'none'",
3197 },
3198 { .ival = "1",
3199 .oval = ERROR_TYPE_ANY,
3200 .help = "Alias for 'all'",
3201 },
3202 },
3203 },
3204 {
3205 .name = "ignore_error",
3206 .type = FIO_OPT_STR,
3207 .cb = str_ignore_error_cb,
3208 .help = "Set a specific list of errors to ignore",
3209 .parent = "rw",
3210 .category = FIO_OPT_C_GENERAL,
3211 .group = FIO_OPT_G_ERR,
3212 },
3213 {
3214 .name = "error_dump",
3215 .type = FIO_OPT_BOOL,
3216 .off1 = td_var_offset(error_dump),
3217 .def = "0",
3218 .help = "Dump info on each error",
3219 .category = FIO_OPT_C_GENERAL,
3220 .group = FIO_OPT_G_ERR,
3221 },
3222 {
3223 .name = "profile",
3224 .lname = "Profile",
3225 .type = FIO_OPT_STR_STORE,
3226 .off1 = td_var_offset(profile),
3227 .help = "Select a specific builtin performance test",
3228 .category = FIO_OPT_C_PROFILE,
3229 .group = FIO_OPT_G_INVALID,
3230 },
3231 {
3232 .name = "cgroup",
3233 .lname = "Cgroup",
3234 .type = FIO_OPT_STR_STORE,
3235 .off1 = td_var_offset(cgroup),
3236 .help = "Add job to cgroup of this name",
3237 .category = FIO_OPT_C_GENERAL,
3238 .group = FIO_OPT_G_CGROUP,
3239 },
3240 {
3241 .name = "cgroup_nodelete",
3242 .lname = "Cgroup no-delete",
3243 .type = FIO_OPT_BOOL,
3244 .off1 = td_var_offset(cgroup_nodelete),
3245 .help = "Do not delete cgroups after job completion",
3246 .def = "0",
3247 .parent = "cgroup",
3248 .category = FIO_OPT_C_GENERAL,
3249 .group = FIO_OPT_G_CGROUP,
3250 },
3251 {
3252 .name = "cgroup_weight",
3253 .lname = "Cgroup weight",
3254 .type = FIO_OPT_INT,
3255 .off1 = td_var_offset(cgroup_weight),
3256 .help = "Use given weight for cgroup",
3257 .minval = 100,
3258 .maxval = 1000,
3259 .parent = "cgroup",
3260 .category = FIO_OPT_C_GENERAL,
3261 .group = FIO_OPT_G_CGROUP,
3262 },
3263 {
3264 .name = "uid",
3265 .lname = "User ID",
3266 .type = FIO_OPT_INT,
3267 .off1 = td_var_offset(uid),
3268 .help = "Run job with this user ID",
3269 .category = FIO_OPT_C_GENERAL,
3270 .group = FIO_OPT_G_CRED,
3271 },
3272 {
3273 .name = "gid",
3274 .lname = "Group ID",
3275 .type = FIO_OPT_INT,
3276 .off1 = td_var_offset(gid),
3277 .help = "Run job with this group ID",
3278 .category = FIO_OPT_C_GENERAL,
3279 .group = FIO_OPT_G_CRED,
3280 },
3281 {
3282 .name = "kb_base",
3283 .lname = "KB Base",
3284 .type = FIO_OPT_INT,
3285 .off1 = td_var_offset(kb_base),
3286 .prio = 1,
3287 .def = "1024",
3288 .posval = {
3289 { .ival = "1024",
3290 .oval = 1024,
3291 .help = "Use 1024 as the K base",
3292 },
3293 { .ival = "1000",
3294 .oval = 1000,
3295 .help = "Use 1000 as the K base",
3296 },
3297 },
3298 .help = "How many bytes per KB for reporting (1000 or 1024)",
3299 .category = FIO_OPT_C_GENERAL,
3300 .group = FIO_OPT_G_INVALID,
3301 },
3302 {
3303 .name = "unit_base",
3304 .lname = "Base unit for reporting (Bits or Bytes)",
3305 .type = FIO_OPT_INT,
3306 .off1 = td_var_offset(unit_base),
3307 .prio = 1,
3308 .posval = {
3309 { .ival = "0",
3310 .oval = 0,
3311 .help = "Auto-detect",
3312 },
3313 { .ival = "8",
3314 .oval = 8,
3315 .help = "Normal (byte based)",
3316 },
3317 { .ival = "1",
3318 .oval = 1,
3319 .help = "Bit based",
3320 },
3321 },
3322 .help = "Bit multiple of result summary data (8 for byte, 1 for bit)",
3323 .category = FIO_OPT_C_GENERAL,
3324 .group = FIO_OPT_G_INVALID,
3325 },
3326 {
3327 .name = "hugepage-size",
3328 .lname = "Hugepage size",
3329 .type = FIO_OPT_INT,
3330 .off1 = td_var_offset(hugepage_size),
3331 .help = "When using hugepages, specify size of each page",
3332 .def = __fio_stringify(FIO_HUGE_PAGE),
3333 .interval = 1024 * 1024,
3334 .category = FIO_OPT_C_GENERAL,
3335 .group = FIO_OPT_G_INVALID,
3336 },
3337 {
3338 .name = "flow_id",
3339 .lname = "I/O flow ID",
3340 .type = FIO_OPT_INT,
3341 .off1 = td_var_offset(flow_id),
3342 .help = "The flow index ID to use",
3343 .def = "0",
3344 .category = FIO_OPT_C_IO,
3345 .group = FIO_OPT_G_IO_FLOW,
3346 },
3347 {
3348 .name = "flow",
3349 .lname = "I/O flow weight",
3350 .type = FIO_OPT_INT,
3351 .off1 = td_var_offset(flow),
3352 .help = "Weight for flow control of this job",
3353 .parent = "flow_id",
3354 .hide = 1,
3355 .def = "0",
3356 .category = FIO_OPT_C_IO,
3357 .group = FIO_OPT_G_IO_FLOW,
3358 },
3359 {
3360 .name = "flow_watermark",
3361 .lname = "I/O flow watermark",
3362 .type = FIO_OPT_INT,
3363 .off1 = td_var_offset(flow_watermark),
3364 .help = "High watermark for flow control. This option"
3365 " should be set to the same value for all threads"
3366 " with non-zero flow.",
3367 .parent = "flow_id",
3368 .hide = 1,
3369 .def = "1024",
3370 .category = FIO_OPT_C_IO,
3371 .group = FIO_OPT_G_IO_FLOW,
3372 },
3373 {
3374 .name = "flow_sleep",
3375 .lname = "I/O flow sleep",
3376 .type = FIO_OPT_INT,
3377 .off1 = td_var_offset(flow_sleep),
3378 .help = "How many microseconds to sleep after being held"
3379 " back by the flow control mechanism",
3380 .parent = "flow_id",
3381 .hide = 1,
3382 .def = "0",
3383 .category = FIO_OPT_C_IO,
3384 .group = FIO_OPT_G_IO_FLOW,
3385 },
3386 {
3387 .name = NULL,
3388 },
3389};
3390
3391static void add_to_lopt(struct option *lopt, struct fio_option *o,
3392 const char *name, int val)
3393{
3394 lopt->name = (char *) name;
3395 lopt->val = val;
3396 if (o->type == FIO_OPT_STR_SET)
3397 lopt->has_arg = optional_argument;
3398 else
3399 lopt->has_arg = required_argument;
3400}
3401
3402static void options_to_lopts(struct fio_option *opts,
3403 struct option *long_options,
3404 int i, int option_type)
3405{
3406 struct fio_option *o = &opts[0];
3407 while (o->name) {
3408 add_to_lopt(&long_options[i], o, o->name, option_type);
3409 if (o->alias) {
3410 i++;
3411 add_to_lopt(&long_options[i], o, o->alias, option_type);
3412 }
3413
3414 i++;
3415 o++;
3416 assert(i < FIO_NR_OPTIONS);
3417 }
3418}
3419
3420void fio_options_set_ioengine_opts(struct option *long_options,
3421 struct thread_data *td)
3422{
3423 unsigned int i;
3424
3425 i = 0;
3426 while (long_options[i].name) {
3427 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
3428 memset(&long_options[i], 0, sizeof(*long_options));
3429 break;
3430 }
3431 i++;
3432 }
3433
3434 /*
3435 * Just clear out the prior ioengine options.
3436 */
3437 if (!td || !td->eo)
3438 return;
3439
3440 options_to_lopts(td->io_ops->options, long_options, i,
3441 FIO_GETOPT_IOENGINE);
3442}
3443
3444void fio_options_dup_and_init(struct option *long_options)
3445{
3446 unsigned int i;
3447
3448 options_init(fio_options);
3449
3450 i = 0;
3451 while (long_options[i].name)
3452 i++;
3453
3454 options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
3455}
3456
3457struct fio_keyword {
3458 const char *word;
3459 const char *desc;
3460 char *replace;
3461};
3462
3463static struct fio_keyword fio_keywords[] = {
3464 {
3465 .word = "$pagesize",
3466 .desc = "Page size in the system",
3467 },
3468 {
3469 .word = "$mb_memory",
3470 .desc = "Megabytes of memory online",
3471 },
3472 {
3473 .word = "$ncpus",
3474 .desc = "Number of CPUs online in the system",
3475 },
3476 {
3477 .word = NULL,
3478 },
3479};
3480
3481void fio_keywords_init(void)
3482{
3483 unsigned long long mb_memory;
3484 char buf[128];
3485 long l;
3486
3487 sprintf(buf, "%lu", (unsigned long) page_size);
3488 fio_keywords[0].replace = strdup(buf);
3489
3490 mb_memory = os_phys_mem() / (1024 * 1024);
3491 sprintf(buf, "%llu", mb_memory);
3492 fio_keywords[1].replace = strdup(buf);
3493
3494 l = cpus_online();
3495 sprintf(buf, "%lu", l);
3496 fio_keywords[2].replace = strdup(buf);
3497}
3498
3499#define BC_APP "bc"
3500
3501static char *bc_calc(char *str)
3502{
3503 char buf[128], *tmp;
3504 FILE *f;
3505 int ret;
3506
3507 /*
3508 * No math, just return string
3509 */
3510 if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
3511 !strchr(str, '/')) || strchr(str, '\''))
3512 return str;
3513
3514 /*
3515 * Split option from value, we only need to calculate the value
3516 */
3517 tmp = strchr(str, '=');
3518 if (!tmp)
3519 return str;
3520
3521 tmp++;
3522
3523 /*
3524 * Prevent buffer overflows; such a case isn't reasonable anyway
3525 */
3526 if (strlen(str) >= 128 || strlen(tmp) > 100)
3527 return str;
3528
3529 sprintf(buf, "which %s > /dev/null", BC_APP);
3530 if (system(buf)) {
3531 log_err("fio: bc is needed for performing math\n");
3532 return NULL;
3533 }
3534
3535 sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
3536 f = popen(buf, "r");
3537 if (!f)
3538 return NULL;
3539
3540 ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
3541 if (ret <= 0)
3542 return NULL;
3543
3544 pclose(f);
3545 buf[(tmp - str) + ret - 1] = '\0';
3546 memcpy(buf, str, tmp - str);
3547 free(str);
3548 return strdup(buf);
3549}
3550
3551/*
3552 * Return a copy of the input string with substrings of the form ${VARNAME}
3553 * substituted with the value of the environment variable VARNAME. The
3554 * substitution always occurs, even if VARNAME is empty or the corresponding
3555 * environment variable undefined.
3556 */
3557static char *option_dup_subs(const char *opt)
3558{
3559 char out[OPT_LEN_MAX+1];
3560 char in[OPT_LEN_MAX+1];
3561 char *outptr = out;
3562 char *inptr = in;
3563 char *ch1, *ch2, *env;
3564 ssize_t nchr = OPT_LEN_MAX;
3565 size_t envlen;
3566
3567 if (strlen(opt) + 1 > OPT_LEN_MAX) {
3568 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
3569 return NULL;
3570 }
3571
3572 in[OPT_LEN_MAX] = '\0';
3573 strncpy(in, opt, OPT_LEN_MAX);
3574
3575 while (*inptr && nchr > 0) {
3576 if (inptr[0] == '$' && inptr[1] == '{') {
3577 ch2 = strchr(inptr, '}');
3578 if (ch2 && inptr+1 < ch2) {
3579 ch1 = inptr+2;
3580 inptr = ch2+1;
3581 *ch2 = '\0';
3582
3583 env = getenv(ch1);
3584 if (env) {
3585 envlen = strlen(env);
3586 if (envlen <= nchr) {
3587 memcpy(outptr, env, envlen);
3588 outptr += envlen;
3589 nchr -= envlen;
3590 }
3591 }
3592
3593 continue;
3594 }
3595 }
3596
3597 *outptr++ = *inptr++;
3598 --nchr;
3599 }
3600
3601 *outptr = '\0';
3602 return strdup(out);
3603}
3604
3605/*
3606 * Look for reserved variable names and replace them with real values
3607 */
3608static char *fio_keyword_replace(char *opt)
3609{
3610 char *s;
3611 int i;
3612 int docalc = 0;
3613
3614 for (i = 0; fio_keywords[i].word != NULL; i++) {
3615 struct fio_keyword *kw = &fio_keywords[i];
3616
3617 while ((s = strstr(opt, kw->word)) != NULL) {
3618 char *new = malloc(strlen(opt) + 1);
3619 char *o_org = opt;
3620 int olen = s - opt;
3621 int len;
3622
3623 /*
3624 * Copy part of the string before the keyword and
3625 * sprintf() the replacement after it.
3626 */
3627 memcpy(new, opt, olen);
3628 len = sprintf(new + olen, "%s", kw->replace);
3629
3630 /*
3631 * If there's more in the original string, copy that
3632 * in too
3633 */
3634 opt += strlen(kw->word) + olen;
3635 if (strlen(opt))
3636 memcpy(new + olen + len, opt, opt - o_org - 1);
3637
3638 /*
3639 * replace opt and free the old opt
3640 */
3641 opt = new;
3642 free(o_org);
3643
3644 docalc = 1;
3645 }
3646 }
3647
3648 /*
3649 * Check for potential math and invoke bc, if possible
3650 */
3651 if (docalc)
3652 opt = bc_calc(opt);
3653
3654 return opt;
3655}
3656
3657static char **dup_and_sub_options(char **opts, int num_opts)
3658{
3659 int i;
3660 char **opts_copy = malloc(num_opts * sizeof(*opts));
3661 for (i = 0; i < num_opts; i++) {
3662 opts_copy[i] = option_dup_subs(opts[i]);
3663 if (!opts_copy[i])
3664 continue;
3665 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
3666 }
3667 return opts_copy;
3668}
3669
3670int fio_options_parse(struct thread_data *td, char **opts, int num_opts,
3671 int dump_cmdline)
3672{
3673 int i, ret, unknown;
3674 char **opts_copy;
3675
3676 sort_options(opts, fio_options, num_opts);
3677 opts_copy = dup_and_sub_options(opts, num_opts);
3678
3679 for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
3680 struct fio_option *o;
3681 int newret = parse_option(opts_copy[i], opts[i], fio_options,
3682 &o, td, dump_cmdline);
3683
3684 if (opts_copy[i]) {
3685 if (newret && !o) {
3686 unknown++;
3687 continue;
3688 }
3689 free(opts_copy[i]);
3690 opts_copy[i] = NULL;
3691 }
3692
3693 ret |= newret;
3694 }
3695
3696 if (unknown) {
3697 ret |= ioengine_load(td);
3698 if (td->eo) {
3699 sort_options(opts_copy, td->io_ops->options, num_opts);
3700 opts = opts_copy;
3701 }
3702 for (i = 0; i < num_opts; i++) {
3703 struct fio_option *o = NULL;
3704 int newret = 1;
3705 if (!opts_copy[i])
3706 continue;
3707
3708 if (td->eo)
3709 newret = parse_option(opts_copy[i], opts[i],
3710 td->io_ops->options, &o,
3711 td->eo, dump_cmdline);
3712
3713 ret |= newret;
3714 if (!o)
3715 log_err("Bad option <%s>\n", opts[i]);
3716
3717 free(opts_copy[i]);
3718 opts_copy[i] = NULL;
3719 }
3720 }
3721
3722 free(opts_copy);
3723 return ret;
3724}
3725
3726int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
3727{
3728 return parse_cmd_option(opt, val, fio_options, td);
3729}
3730
3731int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
3732 char *val)
3733{
3734 return parse_cmd_option(opt, val, td->io_ops->options, td->eo);
3735}
3736
3737void fio_fill_default_options(struct thread_data *td)
3738{
3739 fill_default_options(td, fio_options);
3740}
3741
3742int fio_show_option_help(const char *opt)
3743{
3744 return show_cmd_help(fio_options, opt);
3745}
3746
3747void options_mem_dupe(void *data, struct fio_option *options)
3748{
3749 struct fio_option *o;
3750 char **ptr;
3751
3752 for (o = &options[0]; o->name; o++) {
3753 if (o->type != FIO_OPT_STR_STORE)
3754 continue;
3755
3756 ptr = td_var(data, o, o->off1);
3757 if (*ptr)
3758 *ptr = strdup(*ptr);
3759 }
3760}
3761
3762/*
3763 * dupe FIO_OPT_STR_STORE options
3764 */
3765void fio_options_mem_dupe(struct thread_data *td)
3766{
3767 options_mem_dupe(&td->o, fio_options);
3768
3769 if (td->eo && td->io_ops) {
3770 void *oldeo = td->eo;
3771
3772 td->eo = malloc(td->io_ops->option_struct_size);
3773 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
3774 options_mem_dupe(td->eo, td->io_ops->options);
3775 }
3776}
3777
3778unsigned int fio_get_kb_base(void *data)
3779{
3780 struct thread_options *o = data;
3781 unsigned int kb_base = 0;
3782
3783 if (o)
3784 kb_base = o->kb_base;
3785 if (!kb_base)
3786 kb_base = 1024;
3787
3788 return kb_base;
3789}
3790
3791int add_option(struct fio_option *o)
3792{
3793 struct fio_option *__o;
3794 int opt_index = 0;
3795
3796 __o = fio_options;
3797 while (__o->name) {
3798 opt_index++;
3799 __o++;
3800 }
3801
3802 if (opt_index + 1 == FIO_MAX_OPTS) {
3803 log_err("fio: FIO_MAX_OPTS is too small\n");
3804 return 1;
3805 }
3806
3807 memcpy(&fio_options[opt_index], o, sizeof(*o));
3808 fio_options[opt_index + 1].name = NULL;
3809 return 0;
3810}
3811
3812void invalidate_profile_options(const char *prof_name)
3813{
3814 struct fio_option *o;
3815
3816 o = fio_options;
3817 while (o->name) {
3818 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
3819 o->type = FIO_OPT_INVALID;
3820 o->prof_name = NULL;
3821 }
3822 o++;
3823 }
3824}
3825
3826void add_opt_posval(const char *optname, const char *ival, const char *help)
3827{
3828 struct fio_option *o;
3829 unsigned int i;
3830
3831 o = find_option(fio_options, optname);
3832 if (!o)
3833 return;
3834
3835 for (i = 0; i < PARSE_MAX_VP; i++) {
3836 if (o->posval[i].ival)
3837 continue;
3838
3839 o->posval[i].ival = ival;
3840 o->posval[i].help = help;
3841 break;
3842 }
3843}
3844
3845void del_opt_posval(const char *optname, const char *ival)
3846{
3847 struct fio_option *o;
3848 unsigned int i;
3849
3850 o = find_option(fio_options, optname);
3851 if (!o)
3852 return;
3853
3854 for (i = 0; i < PARSE_MAX_VP; i++) {
3855 if (!o->posval[i].ival)
3856 continue;
3857 if (strcmp(o->posval[i].ival, ival))
3858 continue;
3859
3860 o->posval[i].ival = NULL;
3861 o->posval[i].help = NULL;
3862 }
3863}
3864
3865void fio_options_free(struct thread_data *td)
3866{
3867 options_free(fio_options, td);
3868 if (td->eo && td->io_ops && td->io_ops->options) {
3869 options_free(td->io_ops->options, td->eo);
3870 free(td->eo);
3871 td->eo = NULL;
3872 }
3873}
3874
3875struct fio_option *fio_option_find(const char *name)
3876{
3877 return find_option(fio_options, name);
3878}
3879
fio - Flexible IO Tester