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Get rid of _set variables
[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 = -1U;
102 } else
103 perc = -1U;
104
105 if (str_to_decimal(fname, &val, 1, o, 0, 0)) {
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 == -1U)
131 perc_missing++;
132 else
133 perc += bsp->perc;
134 }
135
136 if (perc > 100 && perc_missing > 1) {
137 log_err("fio: bssplit percentages add to more than 100%%\n");
138 free(bssplit);
139 return 1;
140 }
141
142 /*
143 * If values didn't have a percentage set, divide the remains between
144 * them.
145 */
146 if (perc_missing) {
147 if (perc_missing == 1 && o->bssplit_nr[ddir] == 1)
148 perc = 100;
149 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
150 struct bssplit *bsp = &bssplit[i];
151
152 if (bsp->perc == -1U)
153 bsp->perc = (100 - perc) / perc_missing;
154 }
155 }
156
157 o->min_bs[ddir] = min_bs;
158 o->max_bs[ddir] = max_bs;
159
160 /*
161 * now sort based on percentages, for ease of lookup
162 */
163 qsort(bssplit, o->bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
164 o->bssplit[ddir] = bssplit;
165 return 0;
166}
167
168static int str_bssplit_cb(void *data, const char *input)
169{
170 struct thread_data *td = data;
171 char *str, *p, *odir, *ddir;
172 int ret = 0;
173
174 if (parse_dryrun())
175 return 0;
176
177 p = str = strdup(input);
178
179 strip_blank_front(&str);
180 strip_blank_end(str);
181
182 odir = strchr(str, ',');
183 if (odir) {
184 ddir = strchr(odir + 1, ',');
185 if (ddir) {
186 ret = bssplit_ddir(&td->o, DDIR_TRIM, ddir + 1);
187 if (!ret)
188 *ddir = '\0';
189 } else {
190 char *op;
191
192 op = strdup(odir + 1);
193 ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
194
195 free(op);
196 }
197 if (!ret)
198 ret = bssplit_ddir(&td->o, DDIR_WRITE, odir + 1);
199 if (!ret) {
200 *odir = '\0';
201 ret = bssplit_ddir(&td->o, DDIR_READ, str);
202 }
203 } else {
204 char *op;
205
206 op = strdup(str);
207 ret = bssplit_ddir(&td->o, DDIR_WRITE, op);
208 free(op);
209
210 if (!ret) {
211 op = strdup(str);
212 ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
213 free(op);
214 }
215 ret = bssplit_ddir(&td->o, DDIR_READ, str);
216 }
217
218 free(p);
219 return ret;
220}
221
222static int str2error(char *str)
223{
224 const char *err[] = { "EPERM", "ENOENT", "ESRCH", "EINTR", "EIO",
225 "ENXIO", "E2BIG", "ENOEXEC", "EBADF",
226 "ECHILD", "EAGAIN", "ENOMEM", "EACCES",
227 "EFAULT", "ENOTBLK", "EBUSY", "EEXIST",
228 "EXDEV", "ENODEV", "ENOTDIR", "EISDIR",
229 "EINVAL", "ENFILE", "EMFILE", "ENOTTY",
230 "ETXTBSY","EFBIG", "ENOSPC", "ESPIPE",
231 "EROFS","EMLINK", "EPIPE", "EDOM", "ERANGE" };
232 int i = 0, num = sizeof(err) / sizeof(void *);
233
234 while (i < num) {
235 if (!strcmp(err[i], str))
236 return i + 1;
237 i++;
238 }
239 return 0;
240}
241
242static int ignore_error_type(struct thread_data *td, int etype, char *str)
243{
244 unsigned int i;
245 int *error;
246 char *fname;
247
248 if (etype >= ERROR_TYPE_CNT) {
249 log_err("Illegal error type\n");
250 return 1;
251 }
252
253 td->o.ignore_error_nr[etype] = 4;
254 error = malloc(4 * sizeof(struct bssplit));
255
256 i = 0;
257 while ((fname = strsep(&str, ":")) != NULL) {
258
259 if (!strlen(fname))
260 break;
261
262 /*
263 * grow struct buffer, if needed
264 */
265 if (i == td->o.ignore_error_nr[etype]) {
266 td->o.ignore_error_nr[etype] <<= 1;
267 error = realloc(error, td->o.ignore_error_nr[etype]
268 * sizeof(int));
269 }
270 if (fname[0] == 'E') {
271 error[i] = str2error(fname);
272 } else {
273 error[i] = atoi(fname);
274 if (error[i] < 0)
275 error[i] = -error[i];
276 }
277 if (!error[i]) {
278 log_err("Unknown error %s, please use number value \n",
279 fname);
280 free(error);
281 return 1;
282 }
283 i++;
284 }
285 if (i) {
286 td->o.continue_on_error |= 1 << etype;
287 td->o.ignore_error_nr[etype] = i;
288 td->o.ignore_error[etype] = error;
289 } else
290 free(error);
291
292 return 0;
293
294}
295
296static int str_ignore_error_cb(void *data, const char *input)
297{
298 struct thread_data *td = data;
299 char *str, *p, *n;
300 int type = 0, ret = 1;
301
302 if (parse_dryrun())
303 return 0;
304
305 p = str = strdup(input);
306
307 strip_blank_front(&str);
308 strip_blank_end(str);
309
310 while (p) {
311 n = strchr(p, ',');
312 if (n)
313 *n++ = '\0';
314 ret = ignore_error_type(td, type, p);
315 if (ret)
316 break;
317 p = n;
318 type++;
319 }
320 free(str);
321 return ret;
322}
323
324static int str_rw_cb(void *data, const char *str)
325{
326 struct thread_data *td = data;
327 struct thread_options *o = &td->o;
328 char *nr;
329
330 if (parse_dryrun())
331 return 0;
332
333 o->ddir_seq_nr = 1;
334 o->ddir_seq_add = 0;
335
336 nr = get_opt_postfix(str);
337 if (!nr)
338 return 0;
339
340 if (td_random(td))
341 o->ddir_seq_nr = atoi(nr);
342 else {
343 long long val;
344
345 if (str_to_decimal(nr, &val, 1, o, 0, 0)) {
346 log_err("fio: rw postfix parsing failed\n");
347 free(nr);
348 return 1;
349 }
350
351 o->ddir_seq_add = val;
352 }
353
354 free(nr);
355 return 0;
356}
357
358static int str_mem_cb(void *data, const char *mem)
359{
360 struct thread_data *td = data;
361
362 if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP)
363 td->o.mmapfile = get_opt_postfix(mem);
364
365 return 0;
366}
367
368static int fio_clock_source_cb(void *data, const char *str)
369{
370 struct thread_data *td = data;
371
372 fio_clock_source = td->o.clocksource;
373 fio_clock_source_set = 1;
374 fio_clock_init();
375 return 0;
376}
377
378static int str_rwmix_read_cb(void *data, unsigned long long *val)
379{
380 struct thread_data *td = data;
381
382 td->o.rwmix[DDIR_READ] = *val;
383 td->o.rwmix[DDIR_WRITE] = 100 - *val;
384 return 0;
385}
386
387static int str_rwmix_write_cb(void *data, unsigned long long *val)
388{
389 struct thread_data *td = data;
390
391 td->o.rwmix[DDIR_WRITE] = *val;
392 td->o.rwmix[DDIR_READ] = 100 - *val;
393 return 0;
394}
395
396static int str_exitall_cb(void)
397{
398 exitall_on_terminate = 1;
399 return 0;
400}
401
402#ifdef FIO_HAVE_CPU_AFFINITY
403int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu_index)
404{
405 unsigned int i, index, cpus_in_mask;
406 const long max_cpu = cpus_online();
407
408 cpus_in_mask = fio_cpu_count(mask);
409 cpu_index = cpu_index % cpus_in_mask;
410
411 index = 0;
412 for (i = 0; i < max_cpu; i++) {
413 if (!fio_cpu_isset(mask, i))
414 continue;
415
416 if (cpu_index != index)
417 fio_cpu_clear(mask, i);
418
419 index++;
420 }
421
422 return fio_cpu_count(mask);
423}
424
425static int str_cpumask_cb(void *data, unsigned long long *val)
426{
427 struct thread_data *td = data;
428 unsigned int i;
429 long max_cpu;
430 int ret;
431
432 if (parse_dryrun())
433 return 0;
434
435 ret = fio_cpuset_init(&td->o.cpumask);
436 if (ret < 0) {
437 log_err("fio: cpuset_init failed\n");
438 td_verror(td, ret, "fio_cpuset_init");
439 return 1;
440 }
441
442 max_cpu = cpus_online();
443
444 for (i = 0; i < sizeof(int) * 8; i++) {
445 if ((1 << i) & *val) {
446 if (i > max_cpu) {
447 log_err("fio: CPU %d too large (max=%ld)\n", i,
448 max_cpu);
449 return 1;
450 }
451 dprint(FD_PARSE, "set cpu allowed %d\n", i);
452 fio_cpu_set(&td->o.cpumask, i);
453 }
454 }
455
456 return 0;
457}
458
459static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
460 const char *input)
461{
462 char *cpu, *str, *p;
463 long max_cpu;
464 int ret = 0;
465
466 ret = fio_cpuset_init(mask);
467 if (ret < 0) {
468 log_err("fio: cpuset_init failed\n");
469 td_verror(td, ret, "fio_cpuset_init");
470 return 1;
471 }
472
473 p = str = strdup(input);
474
475 strip_blank_front(&str);
476 strip_blank_end(str);
477
478 max_cpu = cpus_online();
479
480 while ((cpu = strsep(&str, ",")) != NULL) {
481 char *str2, *cpu2;
482 int icpu, icpu2;
483
484 if (!strlen(cpu))
485 break;
486
487 str2 = cpu;
488 icpu2 = -1;
489 while ((cpu2 = strsep(&str2, "-")) != NULL) {
490 if (!strlen(cpu2))
491 break;
492
493 icpu2 = atoi(cpu2);
494 }
495
496 icpu = atoi(cpu);
497 if (icpu2 == -1)
498 icpu2 = icpu;
499 while (icpu <= icpu2) {
500 if (icpu >= FIO_MAX_CPUS) {
501 log_err("fio: your OS only supports up to"
502 " %d CPUs\n", (int) FIO_MAX_CPUS);
503 ret = 1;
504 break;
505 }
506 if (icpu > max_cpu) {
507 log_err("fio: CPU %d too large (max=%ld)\n",
508 icpu, max_cpu);
509 ret = 1;
510 break;
511 }
512
513 dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
514 fio_cpu_set(mask, icpu);
515 icpu++;
516 }
517 if (ret)
518 break;
519 }
520
521 free(p);
522 return ret;
523}
524
525static int str_cpus_allowed_cb(void *data, const char *input)
526{
527 struct thread_data *td = data;
528
529 if (parse_dryrun())
530 return 0;
531
532 return set_cpus_allowed(td, &td->o.cpumask, input);
533}
534
535static int str_verify_cpus_allowed_cb(void *data, const char *input)
536{
537 struct thread_data *td = data;
538
539 return set_cpus_allowed(td, &td->o.verify_cpumask, input);
540}
541#endif
542
543#ifdef CONFIG_LIBNUMA
544static int str_numa_cpunodes_cb(void *data, char *input)
545{
546 struct thread_data *td = data;
547 struct bitmask *verify_bitmask;
548
549 if (parse_dryrun())
550 return 0;
551
552 /* numa_parse_nodestring() parses a character string list
553 * of nodes into a bit mask. The bit mask is allocated by
554 * numa_allocate_nodemask(), so it should be freed by
555 * numa_free_nodemask().
556 */
557 verify_bitmask = numa_parse_nodestring(input);
558 if (verify_bitmask == NULL) {
559 log_err("fio: numa_parse_nodestring failed\n");
560 td_verror(td, 1, "str_numa_cpunodes_cb");
561 return 1;
562 }
563 numa_free_nodemask(verify_bitmask);
564
565 td->o.numa_cpunodes = strdup(input);
566 return 0;
567}
568
569static int str_numa_mpol_cb(void *data, char *input)
570{
571 struct thread_data *td = data;
572 const char * const policy_types[] =
573 { "default", "prefer", "bind", "interleave", "local", NULL };
574 int i;
575 char *nodelist;
576 struct bitmask *verify_bitmask;
577
578 if (parse_dryrun())
579 return 0;
580
581 nodelist = strchr(input, ':');
582 if (nodelist) {
583 /* NUL-terminate mode */
584 *nodelist++ = '\0';
585 }
586
587 for (i = 0; i <= MPOL_LOCAL; i++) {
588 if (!strcmp(input, policy_types[i])) {
589 td->o.numa_mem_mode = i;
590 break;
591 }
592 }
593 if (i > MPOL_LOCAL) {
594 log_err("fio: memory policy should be: default, prefer, bind, interleave, local\n");
595 goto out;
596 }
597
598 switch (td->o.numa_mem_mode) {
599 case MPOL_PREFERRED:
600 /*
601 * Insist on a nodelist of one node only
602 */
603 if (nodelist) {
604 char *rest = nodelist;
605 while (isdigit(*rest))
606 rest++;
607 if (*rest) {
608 log_err("fio: one node only for \'prefer\'\n");
609 goto out;
610 }
611 } else {
612 log_err("fio: one node is needed for \'prefer\'\n");
613 goto out;
614 }
615 break;
616 case MPOL_INTERLEAVE:
617 /*
618 * Default to online nodes with memory if no nodelist
619 */
620 if (!nodelist)
621 nodelist = strdup("all");
622 break;
623 case MPOL_LOCAL:
624 case MPOL_DEFAULT:
625 /*
626 * Don't allow a nodelist
627 */
628 if (nodelist) {
629 log_err("fio: NO nodelist for \'local\'\n");
630 goto out;
631 }
632 break;
633 case MPOL_BIND:
634 /*
635 * Insist on a nodelist
636 */
637 if (!nodelist) {
638 log_err("fio: a nodelist is needed for \'bind\'\n");
639 goto out;
640 }
641 break;
642 }
643
644
645 /* numa_parse_nodestring() parses a character string list
646 * of nodes into a bit mask. The bit mask is allocated by
647 * numa_allocate_nodemask(), so it should be freed by
648 * numa_free_nodemask().
649 */
650 switch (td->o.numa_mem_mode) {
651 case MPOL_PREFERRED:
652 td->o.numa_mem_prefer_node = atoi(nodelist);
653 break;
654 case MPOL_INTERLEAVE:
655 case MPOL_BIND:
656 verify_bitmask = numa_parse_nodestring(nodelist);
657 if (verify_bitmask == NULL) {
658 log_err("fio: numa_parse_nodestring failed\n");
659 td_verror(td, 1, "str_numa_memnodes_cb");
660 return 1;
661 }
662 td->o.numa_memnodes = strdup(nodelist);
663 numa_free_nodemask(verify_bitmask);
664
665 break;
666 case MPOL_LOCAL:
667 case MPOL_DEFAULT:
668 default:
669 break;
670 }
671
672 return 0;
673out:
674 return 1;
675}
676#endif
677
678static int str_fst_cb(void *data, const char *str)
679{
680 struct thread_data *td = data;
681 char *nr = get_opt_postfix(str);
682
683 td->file_service_nr = 1;
684 if (nr) {
685 td->file_service_nr = atoi(nr);
686 free(nr);
687 }
688
689 return 0;
690}
691
692#ifdef CONFIG_SYNC_FILE_RANGE
693static int str_sfr_cb(void *data, const char *str)
694{
695 struct thread_data *td = data;
696 char *nr = get_opt_postfix(str);
697
698 td->sync_file_range_nr = 1;
699 if (nr) {
700 td->sync_file_range_nr = atoi(nr);
701 free(nr);
702 }
703
704 return 0;
705}
706#endif
707
708static int str_random_distribution_cb(void *data, const char *str)
709{
710 struct thread_data *td = data;
711 double val;
712 char *nr;
713
714 if (parse_dryrun())
715 return 0;
716
717 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
718 val = 1.1;
719 else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
720 val = 0.2;
721 else
722 return 0;
723
724 nr = get_opt_postfix(str);
725 if (nr && !str_to_float(nr, &val, 0)) {
726 log_err("fio: random postfix parsing failed\n");
727 free(nr);
728 return 1;
729 }
730
731 free(nr);
732
733 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
734 if (val == 1.00) {
735 log_err("fio: zipf theta must different than 1.0\n");
736 return 1;
737 }
738 td->o.zipf_theta.u.f = val;
739 } else {
740 if (val <= 0.00 || val >= 1.00) {
741 log_err("fio: pareto input out of range (0 < input < 1.0)\n");
742 return 1;
743 }
744 td->o.pareto_h.u.f = val;
745 }
746
747 return 0;
748}
749
750/*
751 * Return next name in the string. Files are separated with ':'. If the ':'
752 * is escaped with a '\', then that ':' is part of the filename and does not
753 * indicate a new file.
754 */
755static char *get_next_name(char **ptr)
756{
757 char *str = *ptr;
758 char *p, *start;
759
760 if (!str || !strlen(str))
761 return NULL;
762
763 start = str;
764 do {
765 /*
766 * No colon, we are done
767 */
768 p = strchr(str, ':');
769 if (!p) {
770 *ptr = NULL;
771 break;
772 }
773
774 /*
775 * We got a colon, but it's the first character. Skip and
776 * continue
777 */
778 if (p == start) {
779 str = ++start;
780 continue;
781 }
782
783 if (*(p - 1) != '\\') {
784 *p = '\0';
785 *ptr = p + 1;
786 break;
787 }
788
789 memmove(p - 1, p, strlen(p) + 1);
790 str = p;
791 } while (1);
792
793 return start;
794}
795
796
797static int get_max_name_idx(char *input)
798{
799 unsigned int cur_idx;
800 char *str, *p;
801
802 p = str = strdup(input);
803 for (cur_idx = 0; ; cur_idx++)
804 if (get_next_name(&str) == NULL)
805 break;
806
807 free(p);
808 return cur_idx;
809}
810
811/*
812 * Returns the directory at the index, indexes > entires will be
813 * assigned via modulo division of the index
814 */
815int set_name_idx(char *target, char *input, int index)
816{
817 unsigned int cur_idx;
818 int len;
819 char *fname, *str, *p;
820
821 p = str = strdup(input);
822
823 index %= get_max_name_idx(input);
824 for (cur_idx = 0; cur_idx <= index; cur_idx++)
825 fname = get_next_name(&str);
826
827 len = sprintf(target, "%s/", fname);
828 free(p);
829
830 return len;
831}
832
833static int str_filename_cb(void *data, const char *input)
834{
835 struct thread_data *td = data;
836 char *fname, *str, *p;
837
838 p = str = strdup(input);
839
840 strip_blank_front(&str);
841 strip_blank_end(str);
842
843 if (!td->files_index)
844 td->o.nr_files = 0;
845
846 while ((fname = get_next_name(&str)) != NULL) {
847 if (!strlen(fname))
848 break;
849 add_file(td, fname, 0, 1);
850 }
851
852 free(p);
853 return 0;
854}
855
856static int str_directory_cb(void *data, const char fio_unused *unused)
857{
858 struct thread_data *td = data;
859 struct stat sb;
860 char *dirname, *str, *p;
861 int ret = 0;
862
863 if (parse_dryrun())
864 return 0;
865
866 p = str = strdup(td->o.directory);
867 while ((dirname = get_next_name(&str)) != NULL) {
868 if (lstat(dirname, &sb) < 0) {
869 ret = errno;
870
871 log_err("fio: %s is not a directory\n", dirname);
872 td_verror(td, ret, "lstat");
873 goto out;
874 }
875 if (!S_ISDIR(sb.st_mode)) {
876 log_err("fio: %s is not a directory\n", dirname);
877 ret = 1;
878 goto out;
879 }
880 }
881
882out:
883 free(p);
884 return ret;
885}
886
887static int str_lockfile_cb(void *data, const char fio_unused *str)
888{
889 struct thread_data *td = data;
890
891 if (td->files_index) {
892 log_err("fio: lockfile= option must precede filename=\n");
893 return 1;
894 }
895
896 return 0;
897}
898
899static int str_opendir_cb(void *data, const char fio_unused *str)
900{
901 struct thread_data *td = data;
902
903 if (parse_dryrun())
904 return 0;
905
906 if (!td->files_index)
907 td->o.nr_files = 0;
908
909 return add_dir_files(td, td->o.opendir);
910}
911
912static int pattern_cb(char *pattern, unsigned int max_size,
913 const char *input, unsigned int *pattern_bytes)
914{
915 long off;
916 int i = 0, j = 0, len, k, base = 10;
917 uint32_t pattern_length;
918 char *loc1, *loc2;
919
920 /*
921 * Check if it's a string input
922 */
923 loc1 = strchr(input, '\"');
924 if (loc1) {
925 do {
926 loc1++;
927 if (*loc1 == '\0' || *loc1 == '\"')
928 break;
929
930 pattern[i] = *loc1;
931 i++;
932 } while (i < max_size);
933
934 if (!i)
935 return 1;
936
937 goto fill;
938 }
939
940 /*
941 * No string, find out if it's decimal or hexidecimal
942 */
943 loc1 = strstr(input, "0x");
944 loc2 = strstr(input, "0X");
945 if (loc1 || loc2)
946 base = 16;
947 off = strtol(input, NULL, base);
948 if (off != LONG_MAX || errno != ERANGE) {
949 while (off) {
950 pattern[i] = off & 0xff;
951 off >>= 8;
952 i++;
953 }
954 } else {
955 len = strlen(input);
956 k = len - 1;
957 if (base == 16) {
958 if (loc1)
959 j = loc1 - input + 2;
960 else
961 j = loc2 - input + 2;
962 } else
963 return 1;
964 if (len - j < max_size * 2) {
965 while (k >= j) {
966 off = converthexchartoint(input[k--]);
967 if (k >= j)
968 off += (converthexchartoint(input[k--])
969 * 16);
970 pattern[i++] = (char) off;
971 }
972 }
973 }
974
975 /*
976 * Fill the pattern all the way to the end. This greatly reduces
977 * the number of memcpy's we have to do when verifying the IO.
978 */
979fill:
980 pattern_length = i;
981 while (i > 1 && i * 2 <= max_size) {
982 memcpy(&pattern[i], &pattern[0], i);
983 i *= 2;
984 }
985
986 /*
987 * Fill remainder, if the pattern multiple ends up not being
988 * max_size.
989 */
990 while (i > 1 && i < max_size) {
991 unsigned int b = min(pattern_length, max_size - i);
992
993 memcpy(&pattern[i], &pattern[0], b);
994 i += b;
995 }
996
997 if (i == 1) {
998 /*
999 * The code in verify_io_u_pattern assumes a single byte
1000 * pattern fills the whole verify pattern buffer.
1001 */
1002 memset(pattern, pattern[0], max_size);
1003 }
1004
1005 *pattern_bytes = i;
1006 return 0;
1007}
1008
1009static int str_buffer_pattern_cb(void *data, const char *input)
1010{
1011 struct thread_data *td = data;
1012 int ret;
1013
1014 ret = pattern_cb(td->o.buffer_pattern, MAX_PATTERN_SIZE, input,
1015 &td->o.buffer_pattern_bytes);
1016
1017 if (!ret && td->o.buffer_pattern_bytes) {
1018 if (!td->o.compress_percentage)
1019 td->o.refill_buffers = 0;
1020 td->o.scramble_buffers = 0;
1021 td->o.zero_buffers = 0;
1022 } else {
1023 log_err("fio: failed parsing pattern `%s`\n", input);
1024 ret = 1;
1025 }
1026
1027 return ret;
1028}
1029
1030static int str_buffer_compress_cb(void *data, unsigned long long *il)
1031{
1032 struct thread_data *td = data;
1033
1034 td->flags |= TD_F_COMPRESS;
1035 td->o.compress_percentage = *il;
1036 return 0;
1037}
1038
1039static int str_dedupe_cb(void *data, unsigned long long *il)
1040{
1041 struct thread_data *td = data;
1042
1043 td->flags |= TD_F_COMPRESS;
1044 td->o.dedupe_percentage = *il;
1045 td->o.refill_buffers = 1;
1046 return 0;
1047}
1048
1049static int str_verify_pattern_cb(void *data, const char *input)
1050{
1051 struct thread_data *td = data;
1052 int ret;
1053
1054 ret = pattern_cb(td->o.verify_pattern, MAX_PATTERN_SIZE, input,
1055 &td->o.verify_pattern_bytes);
1056
1057 /*
1058 * VERIFY_META could already be set
1059 */
1060 if (!ret && td->o.verify == VERIFY_NONE)
1061 td->o.verify = VERIFY_PATTERN;
1062
1063 return ret;
1064}
1065
1066static int str_gtod_reduce_cb(void *data, int *il)
1067{
1068 struct thread_data *td = data;
1069 int val = *il;
1070
1071 td->o.disable_lat = !!val;
1072 td->o.disable_clat = !!val;
1073 td->o.disable_slat = !!val;
1074 td->o.disable_bw = !!val;
1075 td->o.clat_percentiles = !val;
1076 if (val)
1077 td->tv_cache_mask = 63;
1078
1079 return 0;
1080}
1081
1082static int str_gtod_cpu_cb(void *data, long long *il)
1083{
1084 struct thread_data *td = data;
1085 int val = *il;
1086
1087 td->o.gtod_cpu = val;
1088 td->o.gtod_offload = 1;
1089 return 0;
1090}
1091
1092static int str_size_cb(void *data, unsigned long long *__val)
1093{
1094 struct thread_data *td = data;
1095 unsigned long long v = *__val;
1096
1097 if (parse_is_percent(v)) {
1098 td->o.size = 0;
1099 td->o.size_percent = -1ULL - v;
1100 } else
1101 td->o.size = v;
1102
1103 return 0;
1104}
1105
1106static int rw_verify(struct fio_option *o, void *data)
1107{
1108 struct thread_data *td = data;
1109
1110 if (read_only && td_write(td)) {
1111 log_err("fio: job <%s> has write bit set, but fio is in"
1112 " read-only mode\n", td->o.name);
1113 return 1;
1114 }
1115
1116 return 0;
1117}
1118
1119static int gtod_cpu_verify(struct fio_option *o, void *data)
1120{
1121#ifndef FIO_HAVE_CPU_AFFINITY
1122 struct thread_data *td = data;
1123
1124 if (td->o.gtod_cpu) {
1125 log_err("fio: platform must support CPU affinity for"
1126 "gettimeofday() offloading\n");
1127 return 1;
1128 }
1129#endif
1130
1131 return 0;
1132}
1133
1134/*
1135 * Option grouping
1136 */
1137static struct opt_group fio_opt_groups[] = {
1138 {
1139 .name = "General",
1140 .mask = FIO_OPT_C_GENERAL,
1141 },
1142 {
1143 .name = "I/O",
1144 .mask = FIO_OPT_C_IO,
1145 },
1146 {
1147 .name = "File",
1148 .mask = FIO_OPT_C_FILE,
1149 },
1150 {
1151 .name = "Statistics",
1152 .mask = FIO_OPT_C_STAT,
1153 },
1154 {
1155 .name = "Logging",
1156 .mask = FIO_OPT_C_LOG,
1157 },
1158 {
1159 .name = "Profiles",
1160 .mask = FIO_OPT_C_PROFILE,
1161 },
1162 {
1163 .name = NULL,
1164 },
1165};
1166
1167static struct opt_group *__opt_group_from_mask(struct opt_group *ogs, unsigned int *mask,
1168 unsigned int inv_mask)
1169{
1170 struct opt_group *og;
1171 int i;
1172
1173 if (*mask == inv_mask || !*mask)
1174 return NULL;
1175
1176 for (i = 0; ogs[i].name; i++) {
1177 og = &ogs[i];
1178
1179 if (*mask & og->mask) {
1180 *mask &= ~(og->mask);
1181 return og;
1182 }
1183 }
1184
1185 return NULL;
1186}
1187
1188struct opt_group *opt_group_from_mask(unsigned int *mask)
1189{
1190 return __opt_group_from_mask(fio_opt_groups, mask, FIO_OPT_C_INVALID);
1191}
1192
1193static struct opt_group fio_opt_cat_groups[] = {
1194 {
1195 .name = "Latency profiling",
1196 .mask = FIO_OPT_G_LATPROF,
1197 },
1198 {
1199 .name = "Rate",
1200 .mask = FIO_OPT_G_RATE,
1201 },
1202 {
1203 .name = "Zone",
1204 .mask = FIO_OPT_G_ZONE,
1205 },
1206 {
1207 .name = "Read/write mix",
1208 .mask = FIO_OPT_G_RWMIX,
1209 },
1210 {
1211 .name = "Verify",
1212 .mask = FIO_OPT_G_VERIFY,
1213 },
1214 {
1215 .name = "Trim",
1216 .mask = FIO_OPT_G_TRIM,
1217 },
1218 {
1219 .name = "I/O Logging",
1220 .mask = FIO_OPT_G_IOLOG,
1221 },
1222 {
1223 .name = "I/O Depth",
1224 .mask = FIO_OPT_G_IO_DEPTH,
1225 },
1226 {
1227 .name = "I/O Flow",
1228 .mask = FIO_OPT_G_IO_FLOW,
1229 },
1230 {
1231 .name = "Description",
1232 .mask = FIO_OPT_G_DESC,
1233 },
1234 {
1235 .name = "Filename",
1236 .mask = FIO_OPT_G_FILENAME,
1237 },
1238 {
1239 .name = "General I/O",
1240 .mask = FIO_OPT_G_IO_BASIC,
1241 },
1242 {
1243 .name = "Cgroups",
1244 .mask = FIO_OPT_G_CGROUP,
1245 },
1246 {
1247 .name = "Runtime",
1248 .mask = FIO_OPT_G_RUNTIME,
1249 },
1250 {
1251 .name = "Process",
1252 .mask = FIO_OPT_G_PROCESS,
1253 },
1254 {
1255 .name = "Job credentials / priority",
1256 .mask = FIO_OPT_G_CRED,
1257 },
1258 {
1259 .name = "Clock settings",
1260 .mask = FIO_OPT_G_CLOCK,
1261 },
1262 {
1263 .name = "I/O Type",
1264 .mask = FIO_OPT_G_IO_TYPE,
1265 },
1266 {
1267 .name = "I/O Thinktime",
1268 .mask = FIO_OPT_G_THINKTIME,
1269 },
1270 {
1271 .name = "Randomizations",
1272 .mask = FIO_OPT_G_RANDOM,
1273 },
1274 {
1275 .name = "I/O buffers",
1276 .mask = FIO_OPT_G_IO_BUF,
1277 },
1278 {
1279 .name = "Tiobench profile",
1280 .mask = FIO_OPT_G_TIOBENCH,
1281 },
1282
1283 {
1284 .name = NULL,
1285 }
1286};
1287
1288struct opt_group *opt_group_cat_from_mask(unsigned int *mask)
1289{
1290 return __opt_group_from_mask(fio_opt_cat_groups, mask, FIO_OPT_G_INVALID);
1291}
1292
1293/*
1294 * Map of job/command line options
1295 */
1296struct fio_option fio_options[FIO_MAX_OPTS] = {
1297 {
1298 .name = "description",
1299 .lname = "Description of job",
1300 .type = FIO_OPT_STR_STORE,
1301 .off1 = td_var_offset(description),
1302 .help = "Text job description",
1303 .category = FIO_OPT_C_GENERAL,
1304 .group = FIO_OPT_G_DESC,
1305 },
1306 {
1307 .name = "name",
1308 .lname = "Job name",
1309 .type = FIO_OPT_STR_STORE,
1310 .off1 = td_var_offset(name),
1311 .help = "Name of this job",
1312 .category = FIO_OPT_C_GENERAL,
1313 .group = FIO_OPT_G_DESC,
1314 },
1315 {
1316 .name = "filename",
1317 .lname = "Filename(s)",
1318 .type = FIO_OPT_STR_STORE,
1319 .off1 = td_var_offset(filename),
1320 .cb = str_filename_cb,
1321 .prio = -1, /* must come after "directory" */
1322 .help = "File(s) to use for the workload",
1323 .category = FIO_OPT_C_FILE,
1324 .group = FIO_OPT_G_FILENAME,
1325 },
1326 {
1327 .name = "directory",
1328 .lname = "Directory",
1329 .type = FIO_OPT_STR_STORE,
1330 .off1 = td_var_offset(directory),
1331 .cb = str_directory_cb,
1332 .help = "Directory to store files in",
1333 .category = FIO_OPT_C_FILE,
1334 .group = FIO_OPT_G_FILENAME,
1335 },
1336 {
1337 .name = "filename_format",
1338 .type = FIO_OPT_STR_STORE,
1339 .off1 = td_var_offset(filename_format),
1340 .prio = -1, /* must come after "directory" */
1341 .help = "Override default $jobname.$jobnum.$filenum naming",
1342 .def = "$jobname.$jobnum.$filenum",
1343 .category = FIO_OPT_C_FILE,
1344 .group = FIO_OPT_G_FILENAME,
1345 },
1346 {
1347 .name = "lockfile",
1348 .lname = "Lockfile",
1349 .type = FIO_OPT_STR,
1350 .off1 = td_var_offset(file_lock_mode),
1351 .help = "Lock file when doing IO to it",
1352 .prio = 1,
1353 .parent = "filename",
1354 .hide = 0,
1355 .def = "none",
1356 .cb = str_lockfile_cb,
1357 .category = FIO_OPT_C_FILE,
1358 .group = FIO_OPT_G_FILENAME,
1359 .posval = {
1360 { .ival = "none",
1361 .oval = FILE_LOCK_NONE,
1362 .help = "No file locking",
1363 },
1364 { .ival = "exclusive",
1365 .oval = FILE_LOCK_EXCLUSIVE,
1366 .help = "Exclusive file lock",
1367 },
1368 {
1369 .ival = "readwrite",
1370 .oval = FILE_LOCK_READWRITE,
1371 .help = "Read vs write lock",
1372 },
1373 },
1374 },
1375 {
1376 .name = "opendir",
1377 .lname = "Open directory",
1378 .type = FIO_OPT_STR_STORE,
1379 .off1 = td_var_offset(opendir),
1380 .cb = str_opendir_cb,
1381 .help = "Recursively add files from this directory and down",
1382 .category = FIO_OPT_C_FILE,
1383 .group = FIO_OPT_G_FILENAME,
1384 },
1385 {
1386 .name = "rw",
1387 .lname = "Read/write",
1388 .alias = "readwrite",
1389 .type = FIO_OPT_STR,
1390 .cb = str_rw_cb,
1391 .off1 = td_var_offset(td_ddir),
1392 .help = "IO direction",
1393 .def = "read",
1394 .verify = rw_verify,
1395 .category = FIO_OPT_C_IO,
1396 .group = FIO_OPT_G_IO_BASIC,
1397 .posval = {
1398 { .ival = "read",
1399 .oval = TD_DDIR_READ,
1400 .help = "Sequential read",
1401 },
1402 { .ival = "write",
1403 .oval = TD_DDIR_WRITE,
1404 .help = "Sequential write",
1405 },
1406 { .ival = "trim",
1407 .oval = TD_DDIR_TRIM,
1408 .help = "Sequential trim",
1409 },
1410 { .ival = "randread",
1411 .oval = TD_DDIR_RANDREAD,
1412 .help = "Random read",
1413 },
1414 { .ival = "randwrite",
1415 .oval = TD_DDIR_RANDWRITE,
1416 .help = "Random write",
1417 },
1418 { .ival = "randtrim",
1419 .oval = TD_DDIR_RANDTRIM,
1420 .help = "Random trim",
1421 },
1422 { .ival = "rw",
1423 .oval = TD_DDIR_RW,
1424 .help = "Sequential read and write mix",
1425 },
1426 { .ival = "readwrite",
1427 .oval = TD_DDIR_RW,
1428 .help = "Sequential read and write mix",
1429 },
1430 { .ival = "randrw",
1431 .oval = TD_DDIR_RANDRW,
1432 .help = "Random read and write mix"
1433 },
1434 },
1435 },
1436 {
1437 .name = "rw_sequencer",
1438 .lname = "RW Sequencer",
1439 .type = FIO_OPT_STR,
1440 .off1 = td_var_offset(rw_seq),
1441 .help = "IO offset generator modifier",
1442 .def = "sequential",
1443 .category = FIO_OPT_C_IO,
1444 .group = FIO_OPT_G_IO_BASIC,
1445 .posval = {
1446 { .ival = "sequential",
1447 .oval = RW_SEQ_SEQ,
1448 .help = "Generate sequential offsets",
1449 },
1450 { .ival = "identical",
1451 .oval = RW_SEQ_IDENT,
1452 .help = "Generate identical offsets",
1453 },
1454 },
1455 },
1456
1457 {
1458 .name = "ioengine",
1459 .lname = "IO Engine",
1460 .type = FIO_OPT_STR_STORE,
1461 .off1 = td_var_offset(ioengine),
1462 .help = "IO engine to use",
1463 .def = FIO_PREFERRED_ENGINE,
1464 .category = FIO_OPT_C_IO,
1465 .group = FIO_OPT_G_IO_BASIC,
1466 .posval = {
1467 { .ival = "sync",
1468 .help = "Use read/write",
1469 },
1470 { .ival = "psync",
1471 .help = "Use pread/pwrite",
1472 },
1473 { .ival = "vsync",
1474 .help = "Use readv/writev",
1475 },
1476#ifdef CONFIG_PWRITEV
1477 { .ival = "pvsync",
1478 .help = "Use preadv/pwritev",
1479 },
1480#endif
1481#ifdef CONFIG_LIBAIO
1482 { .ival = "libaio",
1483 .help = "Linux native asynchronous IO",
1484 },
1485#endif
1486#ifdef CONFIG_POSIXAIO
1487 { .ival = "posixaio",
1488 .help = "POSIX asynchronous IO",
1489 },
1490#endif
1491#ifdef CONFIG_SOLARISAIO
1492 { .ival = "solarisaio",
1493 .help = "Solaris native asynchronous IO",
1494 },
1495#endif
1496#ifdef CONFIG_WINDOWSAIO
1497 { .ival = "windowsaio",
1498 .help = "Windows native asynchronous IO"
1499 },
1500#endif
1501#ifdef CONFIG_RBD
1502 { .ival = "rbd",
1503 .help = "Rados Block Device asynchronous IO"
1504 },
1505#endif
1506 { .ival = "mmap",
1507 .help = "Memory mapped IO"
1508 },
1509#ifdef CONFIG_LINUX_SPLICE
1510 { .ival = "splice",
1511 .help = "splice/vmsplice based IO",
1512 },
1513 { .ival = "netsplice",
1514 .help = "splice/vmsplice to/from the network",
1515 },
1516#endif
1517#ifdef FIO_HAVE_SGIO
1518 { .ival = "sg",
1519 .help = "SCSI generic v3 IO",
1520 },
1521#endif
1522 { .ival = "null",
1523 .help = "Testing engine (no data transfer)",
1524 },
1525 { .ival = "net",
1526 .help = "Network IO",
1527 },
1528 { .ival = "cpuio",
1529 .help = "CPU cycle burner engine",
1530 },
1531#ifdef CONFIG_GUASI
1532 { .ival = "guasi",
1533 .help = "GUASI IO engine",
1534 },
1535#endif
1536#ifdef FIO_HAVE_BINJECT
1537 { .ival = "binject",
1538 .help = "binject direct inject block engine",
1539 },
1540#endif
1541#ifdef CONFIG_RDMA
1542 { .ival = "rdma",
1543 .help = "RDMA IO engine",
1544 },
1545#endif
1546#ifdef CONFIG_FUSION_AW
1547 { .ival = "fusion-aw-sync",
1548 .help = "Fusion-io atomic write engine",
1549 },
1550#endif
1551#ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
1552 { .ival = "e4defrag",
1553 .help = "ext4 defrag engine",
1554 },
1555#endif
1556#ifdef CONFIG_LINUX_FALLOCATE
1557 { .ival = "falloc",
1558 .help = "fallocate() file based engine",
1559 },
1560#endif
1561#ifdef CONFIG_GFAPI
1562 { .ival = "gfapi",
1563 .help = "Glusterfs libgfapi(sync) based engine"
1564 },
1565 { .ival = "gfapi_async",
1566 .help = "Glusterfs libgfapi(async) based engine"
1567 },
1568#endif
1569#ifdef CONFIG_LIBHDFS
1570 { .ival = "libhdfs",
1571 .help = "Hadoop Distributed Filesystem (HDFS) engine"
1572 },
1573#endif
1574 { .ival = "external",
1575 .help = "Load external engine (append name)",
1576 },
1577 },
1578 },
1579 {
1580 .name = "iodepth",
1581 .lname = "IO Depth",
1582 .type = FIO_OPT_INT,
1583 .off1 = td_var_offset(iodepth),
1584 .help = "Number of IO buffers to keep in flight",
1585 .minval = 1,
1586 .interval = 1,
1587 .def = "1",
1588 .category = FIO_OPT_C_IO,
1589 .group = FIO_OPT_G_IO_BASIC,
1590 },
1591 {
1592 .name = "iodepth_batch",
1593 .lname = "IO Depth batch",
1594 .alias = "iodepth_batch_submit",
1595 .type = FIO_OPT_INT,
1596 .off1 = td_var_offset(iodepth_batch),
1597 .help = "Number of IO buffers to submit in one go",
1598 .parent = "iodepth",
1599 .hide = 1,
1600 .minval = 1,
1601 .interval = 1,
1602 .def = "1",
1603 .category = FIO_OPT_C_IO,
1604 .group = FIO_OPT_G_IO_BASIC,
1605 },
1606 {
1607 .name = "iodepth_batch_complete",
1608 .lname = "IO Depth batch complete",
1609 .type = FIO_OPT_INT,
1610 .off1 = td_var_offset(iodepth_batch_complete),
1611 .help = "Number of IO buffers to retrieve in one go",
1612 .parent = "iodepth",
1613 .hide = 1,
1614 .minval = 0,
1615 .interval = 1,
1616 .def = "1",
1617 .category = FIO_OPT_C_IO,
1618 .group = FIO_OPT_G_IO_BASIC,
1619 },
1620 {
1621 .name = "iodepth_low",
1622 .lname = "IO Depth batch low",
1623 .type = FIO_OPT_INT,
1624 .off1 = td_var_offset(iodepth_low),
1625 .help = "Low water mark for queuing depth",
1626 .parent = "iodepth",
1627 .hide = 1,
1628 .interval = 1,
1629 .category = FIO_OPT_C_IO,
1630 .group = FIO_OPT_G_IO_BASIC,
1631 },
1632 {
1633 .name = "size",
1634 .lname = "Size",
1635 .type = FIO_OPT_STR_VAL,
1636 .cb = str_size_cb,
1637 .off1 = td_var_offset(size),
1638 .help = "Total size of device or files",
1639 .interval = 1024 * 1024,
1640 .category = FIO_OPT_C_IO,
1641 .group = FIO_OPT_G_INVALID,
1642 },
1643 {
1644 .name = "io_limit",
1645 .lname = "IO Limit",
1646 .type = FIO_OPT_STR_VAL,
1647 .off1 = td_var_offset(io_limit),
1648 .interval = 1024 * 1024,
1649 .category = FIO_OPT_C_IO,
1650 .group = FIO_OPT_G_INVALID,
1651 },
1652 {
1653 .name = "fill_device",
1654 .lname = "Fill device",
1655 .alias = "fill_fs",
1656 .type = FIO_OPT_BOOL,
1657 .off1 = td_var_offset(fill_device),
1658 .help = "Write until an ENOSPC error occurs",
1659 .def = "0",
1660 .category = FIO_OPT_C_FILE,
1661 .group = FIO_OPT_G_INVALID,
1662 },
1663 {
1664 .name = "filesize",
1665 .lname = "File size",
1666 .type = FIO_OPT_STR_VAL,
1667 .off1 = td_var_offset(file_size_low),
1668 .off2 = td_var_offset(file_size_high),
1669 .minval = 1,
1670 .help = "Size of individual files",
1671 .interval = 1024 * 1024,
1672 .category = FIO_OPT_C_FILE,
1673 .group = FIO_OPT_G_INVALID,
1674 },
1675 {
1676 .name = "file_append",
1677 .lname = "File append",
1678 .type = FIO_OPT_BOOL,
1679 .off1 = td_var_offset(file_append),
1680 .help = "IO will start at the end of the file(s)",
1681 .def = "0",
1682 .category = FIO_OPT_C_FILE,
1683 .group = FIO_OPT_G_INVALID,
1684 },
1685 {
1686 .name = "offset",
1687 .lname = "IO offset",
1688 .alias = "fileoffset",
1689 .type = FIO_OPT_STR_VAL,
1690 .off1 = td_var_offset(start_offset),
1691 .help = "Start IO from this offset",
1692 .def = "0",
1693 .interval = 1024 * 1024,
1694 .category = FIO_OPT_C_IO,
1695 .group = FIO_OPT_G_INVALID,
1696 },
1697 {
1698 .name = "offset_increment",
1699 .lname = "IO offset increment",
1700 .type = FIO_OPT_STR_VAL,
1701 .off1 = td_var_offset(offset_increment),
1702 .help = "What is the increment from one offset to the next",
1703 .parent = "offset",
1704 .hide = 1,
1705 .def = "0",
1706 .interval = 1024 * 1024,
1707 .category = FIO_OPT_C_IO,
1708 .group = FIO_OPT_G_INVALID,
1709 },
1710 {
1711 .name = "number_ios",
1712 .lname = "Number of IOs to perform",
1713 .type = FIO_OPT_STR_VAL,
1714 .off1 = td_var_offset(number_ios),
1715 .help = "Force job completion after this number of IOs",
1716 .def = "0",
1717 .category = FIO_OPT_C_IO,
1718 .group = FIO_OPT_G_INVALID,
1719 },
1720 {
1721 .name = "bs",
1722 .lname = "Block size",
1723 .alias = "blocksize",
1724 .type = FIO_OPT_INT,
1725 .off1 = td_var_offset(bs[DDIR_READ]),
1726 .off2 = td_var_offset(bs[DDIR_WRITE]),
1727 .off3 = td_var_offset(bs[DDIR_TRIM]),
1728 .minval = 1,
1729 .help = "Block size unit",
1730 .def = "4k",
1731 .parent = "rw",
1732 .hide = 1,
1733 .interval = 512,
1734 .category = FIO_OPT_C_IO,
1735 .group = FIO_OPT_G_INVALID,
1736 },
1737 {
1738 .name = "ba",
1739 .lname = "Block size align",
1740 .alias = "blockalign",
1741 .type = FIO_OPT_INT,
1742 .off1 = td_var_offset(ba[DDIR_READ]),
1743 .off2 = td_var_offset(ba[DDIR_WRITE]),
1744 .off3 = td_var_offset(ba[DDIR_TRIM]),
1745 .minval = 1,
1746 .help = "IO block offset alignment",
1747 .parent = "rw",
1748 .hide = 1,
1749 .interval = 512,
1750 .category = FIO_OPT_C_IO,
1751 .group = FIO_OPT_G_INVALID,
1752 },
1753 {
1754 .name = "bsrange",
1755 .lname = "Block size range",
1756 .alias = "blocksize_range",
1757 .type = FIO_OPT_RANGE,
1758 .off1 = td_var_offset(min_bs[DDIR_READ]),
1759 .off2 = td_var_offset(max_bs[DDIR_READ]),
1760 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
1761 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
1762 .off5 = td_var_offset(min_bs[DDIR_TRIM]),
1763 .off6 = td_var_offset(max_bs[DDIR_TRIM]),
1764 .minval = 1,
1765 .help = "Set block size range (in more detail than bs)",
1766 .parent = "rw",
1767 .hide = 1,
1768 .interval = 4096,
1769 .category = FIO_OPT_C_IO,
1770 .group = FIO_OPT_G_INVALID,
1771 },
1772 {
1773 .name = "bssplit",
1774 .lname = "Block size split",
1775 .type = FIO_OPT_STR,
1776 .cb = str_bssplit_cb,
1777 .off1 = td_var_offset(bssplit),
1778 .help = "Set a specific mix of block sizes",
1779 .parent = "rw",
1780 .hide = 1,
1781 .category = FIO_OPT_C_IO,
1782 .group = FIO_OPT_G_INVALID,
1783 },
1784 {
1785 .name = "bs_unaligned",
1786 .lname = "Block size unaligned",
1787 .alias = "blocksize_unaligned",
1788 .type = FIO_OPT_STR_SET,
1789 .off1 = td_var_offset(bs_unaligned),
1790 .help = "Don't sector align IO buffer sizes",
1791 .parent = "rw",
1792 .hide = 1,
1793 .category = FIO_OPT_C_IO,
1794 .group = FIO_OPT_G_INVALID,
1795 },
1796 {
1797 .name = "bs_is_seq_rand",
1798 .lname = "Block size division is seq/random (not read/write)",
1799 .type = FIO_OPT_BOOL,
1800 .off1 = td_var_offset(bs_is_seq_rand),
1801 .help = "Consider any blocksize setting to be sequential,random",
1802 .def = "0",
1803 .parent = "blocksize",
1804 .category = FIO_OPT_C_IO,
1805 .group = FIO_OPT_G_INVALID,
1806 },
1807 {
1808 .name = "randrepeat",
1809 .lname = "Random repeatable",
1810 .type = FIO_OPT_BOOL,
1811 .off1 = td_var_offset(rand_repeatable),
1812 .help = "Use repeatable random IO pattern",
1813 .def = "1",
1814 .parent = "rw",
1815 .hide = 1,
1816 .category = FIO_OPT_C_IO,
1817 .group = FIO_OPT_G_RANDOM,
1818 },
1819 {
1820 .name = "randseed",
1821 .lname = "The random generator seed",
1822 .type = FIO_OPT_STR_VAL,
1823 .off1 = td_var_offset(rand_seed),
1824 .help = "Set the random generator seed value",
1825 .parent = "rw",
1826 .category = FIO_OPT_C_IO,
1827 .group = FIO_OPT_G_RANDOM,
1828 },
1829 {
1830 .name = "use_os_rand",
1831 .lname = "Use OS random",
1832 .type = FIO_OPT_DEPRECATED,
1833 .off1 = td_var_offset(dep_use_os_rand),
1834 .category = FIO_OPT_C_IO,
1835 .group = FIO_OPT_G_RANDOM,
1836 },
1837 {
1838 .name = "norandommap",
1839 .lname = "No randommap",
1840 .type = FIO_OPT_STR_SET,
1841 .off1 = td_var_offset(norandommap),
1842 .help = "Accept potential duplicate random blocks",
1843 .parent = "rw",
1844 .hide = 1,
1845 .hide_on_set = 1,
1846 .category = FIO_OPT_C_IO,
1847 .group = FIO_OPT_G_RANDOM,
1848 },
1849 {
1850 .name = "softrandommap",
1851 .lname = "Soft randommap",
1852 .type = FIO_OPT_BOOL,
1853 .off1 = td_var_offset(softrandommap),
1854 .help = "Set norandommap if randommap allocation fails",
1855 .parent = "norandommap",
1856 .hide = 1,
1857 .def = "0",
1858 .category = FIO_OPT_C_IO,
1859 .group = FIO_OPT_G_RANDOM,
1860 },
1861 {
1862 .name = "random_generator",
1863 .type = FIO_OPT_STR,
1864 .off1 = td_var_offset(random_generator),
1865 .help = "Type of random number generator to use",
1866 .def = "tausworthe",
1867 .posval = {
1868 { .ival = "tausworthe",
1869 .oval = FIO_RAND_GEN_TAUSWORTHE,
1870 .help = "Strong Tausworthe generator",
1871 },
1872 { .ival = "lfsr",
1873 .oval = FIO_RAND_GEN_LFSR,
1874 .help = "Variable length LFSR",
1875 },
1876 },
1877 .category = FIO_OPT_C_IO,
1878 .group = FIO_OPT_G_RANDOM,
1879 },
1880 {
1881 .name = "random_distribution",
1882 .type = FIO_OPT_STR,
1883 .off1 = td_var_offset(random_distribution),
1884 .cb = str_random_distribution_cb,
1885 .help = "Random offset distribution generator",
1886 .def = "random",
1887 .posval = {
1888 { .ival = "random",
1889 .oval = FIO_RAND_DIST_RANDOM,
1890 .help = "Completely random",
1891 },
1892 { .ival = "zipf",
1893 .oval = FIO_RAND_DIST_ZIPF,
1894 .help = "Zipf distribution",
1895 },
1896 { .ival = "pareto",
1897 .oval = FIO_RAND_DIST_PARETO,
1898 .help = "Pareto distribution",
1899 },
1900 },
1901 .category = FIO_OPT_C_IO,
1902 .group = FIO_OPT_G_RANDOM,
1903 },
1904 {
1905 .name = "percentage_random",
1906 .lname = "Percentage Random",
1907 .type = FIO_OPT_INT,
1908 .off1 = td_var_offset(perc_rand[DDIR_READ]),
1909 .off2 = td_var_offset(perc_rand[DDIR_WRITE]),
1910 .off3 = td_var_offset(perc_rand[DDIR_TRIM]),
1911 .maxval = 100,
1912 .help = "Percentage of seq/random mix that should be random",
1913 .def = "100,100,100",
1914 .interval = 5,
1915 .inverse = "percentage_sequential",
1916 .category = FIO_OPT_C_IO,
1917 .group = FIO_OPT_G_RANDOM,
1918 },
1919 {
1920 .name = "percentage_sequential",
1921 .lname = "Percentage Sequential",
1922 .type = FIO_OPT_DEPRECATED,
1923 .category = FIO_OPT_C_IO,
1924 .group = FIO_OPT_G_RANDOM,
1925 },
1926 {
1927 .name = "allrandrepeat",
1928 .type = FIO_OPT_BOOL,
1929 .off1 = td_var_offset(allrand_repeatable),
1930 .help = "Use repeatable random numbers for everything",
1931 .def = "0",
1932 .category = FIO_OPT_C_IO,
1933 .group = FIO_OPT_G_RANDOM,
1934 },
1935 {
1936 .name = "nrfiles",
1937 .lname = "Number of files",
1938 .alias = "nr_files",
1939 .type = FIO_OPT_INT,
1940 .off1 = td_var_offset(nr_files),
1941 .help = "Split job workload between this number of files",
1942 .def = "1",
1943 .interval = 1,
1944 .category = FIO_OPT_C_FILE,
1945 .group = FIO_OPT_G_INVALID,
1946 },
1947 {
1948 .name = "openfiles",
1949 .lname = "Number of open files",
1950 .type = FIO_OPT_INT,
1951 .off1 = td_var_offset(open_files),
1952 .help = "Number of files to keep open at the same time",
1953 .category = FIO_OPT_C_FILE,
1954 .group = FIO_OPT_G_INVALID,
1955 },
1956 {
1957 .name = "file_service_type",
1958 .lname = "File service type",
1959 .type = FIO_OPT_STR,
1960 .cb = str_fst_cb,
1961 .off1 = td_var_offset(file_service_type),
1962 .help = "How to select which file to service next",
1963 .def = "roundrobin",
1964 .category = FIO_OPT_C_FILE,
1965 .group = FIO_OPT_G_INVALID,
1966 .posval = {
1967 { .ival = "random",
1968 .oval = FIO_FSERVICE_RANDOM,
1969 .help = "Choose a file at random",
1970 },
1971 { .ival = "roundrobin",
1972 .oval = FIO_FSERVICE_RR,
1973 .help = "Round robin select files",
1974 },
1975 { .ival = "sequential",
1976 .oval = FIO_FSERVICE_SEQ,
1977 .help = "Finish one file before moving to the next",
1978 },
1979 },
1980 .parent = "nrfiles",
1981 .hide = 1,
1982 },
1983#ifdef CONFIG_POSIX_FALLOCATE
1984 {
1985 .name = "fallocate",
1986 .lname = "Fallocate",
1987 .type = FIO_OPT_STR,
1988 .off1 = td_var_offset(fallocate_mode),
1989 .help = "Whether pre-allocation is performed when laying out files",
1990 .def = "posix",
1991 .category = FIO_OPT_C_FILE,
1992 .group = FIO_OPT_G_INVALID,
1993 .posval = {
1994 { .ival = "none",
1995 .oval = FIO_FALLOCATE_NONE,
1996 .help = "Do not pre-allocate space",
1997 },
1998 { .ival = "posix",
1999 .oval = FIO_FALLOCATE_POSIX,
2000 .help = "Use posix_fallocate()",
2001 },
2002#ifdef CONFIG_LINUX_FALLOCATE
2003 { .ival = "keep",
2004 .oval = FIO_FALLOCATE_KEEP_SIZE,
2005 .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
2006 },
2007#endif
2008 /* Compatibility with former boolean values */
2009 { .ival = "0",
2010 .oval = FIO_FALLOCATE_NONE,
2011 .help = "Alias for 'none'",
2012 },
2013 { .ival = "1",
2014 .oval = FIO_FALLOCATE_POSIX,
2015 .help = "Alias for 'posix'",
2016 },
2017 },
2018 },
2019#endif /* CONFIG_POSIX_FALLOCATE */
2020 {
2021 .name = "fadvise_hint",
2022 .lname = "Fadvise hint",
2023 .type = FIO_OPT_BOOL,
2024 .off1 = td_var_offset(fadvise_hint),
2025 .help = "Use fadvise() to advise the kernel on IO pattern",
2026 .def = "1",
2027 .category = FIO_OPT_C_FILE,
2028 .group = FIO_OPT_G_INVALID,
2029 },
2030 {
2031 .name = "fsync",
2032 .lname = "Fsync",
2033 .type = FIO_OPT_INT,
2034 .off1 = td_var_offset(fsync_blocks),
2035 .help = "Issue fsync for writes every given number of blocks",
2036 .def = "0",
2037 .interval = 1,
2038 .category = FIO_OPT_C_FILE,
2039 .group = FIO_OPT_G_INVALID,
2040 },
2041 {
2042 .name = "fdatasync",
2043 .lname = "Fdatasync",
2044 .type = FIO_OPT_INT,
2045 .off1 = td_var_offset(fdatasync_blocks),
2046 .help = "Issue fdatasync for writes every given number of blocks",
2047 .def = "0",
2048 .interval = 1,
2049 .category = FIO_OPT_C_FILE,
2050 .group = FIO_OPT_G_INVALID,
2051 },
2052 {
2053 .name = "write_barrier",
2054 .lname = "Write barrier",
2055 .type = FIO_OPT_INT,
2056 .off1 = td_var_offset(barrier_blocks),
2057 .help = "Make every Nth write a barrier write",
2058 .def = "0",
2059 .interval = 1,
2060 .category = FIO_OPT_C_IO,
2061 .group = FIO_OPT_G_INVALID,
2062 },
2063#ifdef CONFIG_SYNC_FILE_RANGE
2064 {
2065 .name = "sync_file_range",
2066 .lname = "Sync file range",
2067 .posval = {
2068 { .ival = "wait_before",
2069 .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
2070 .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
2071 .orval = 1,
2072 },
2073 { .ival = "write",
2074 .oval = SYNC_FILE_RANGE_WRITE,
2075 .help = "SYNC_FILE_RANGE_WRITE",
2076 .orval = 1,
2077 },
2078 {
2079 .ival = "wait_after",
2080 .oval = SYNC_FILE_RANGE_WAIT_AFTER,
2081 .help = "SYNC_FILE_RANGE_WAIT_AFTER",
2082 .orval = 1,
2083 },
2084 },
2085 .type = FIO_OPT_STR_MULTI,
2086 .cb = str_sfr_cb,
2087 .off1 = td_var_offset(sync_file_range),
2088 .help = "Use sync_file_range()",
2089 .category = FIO_OPT_C_FILE,
2090 .group = FIO_OPT_G_INVALID,
2091 },
2092#endif
2093 {
2094 .name = "direct",
2095 .lname = "Direct I/O",
2096 .type = FIO_OPT_BOOL,
2097 .off1 = td_var_offset(odirect),
2098 .help = "Use O_DIRECT IO (negates buffered)",
2099 .def = "0",
2100 .inverse = "buffered",
2101 .category = FIO_OPT_C_IO,
2102 .group = FIO_OPT_G_IO_TYPE,
2103 },
2104 {
2105 .name = "atomic",
2106 .lname = "Atomic I/O",
2107 .type = FIO_OPT_BOOL,
2108 .off1 = td_var_offset(oatomic),
2109 .help = "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
2110 .def = "0",
2111 .category = FIO_OPT_C_IO,
2112 .group = FIO_OPT_G_IO_TYPE,
2113 },
2114 {
2115 .name = "buffered",
2116 .lname = "Buffered I/O",
2117 .type = FIO_OPT_BOOL,
2118 .off1 = td_var_offset(odirect),
2119 .neg = 1,
2120 .help = "Use buffered IO (negates direct)",
2121 .def = "1",
2122 .inverse = "direct",
2123 .category = FIO_OPT_C_IO,
2124 .group = FIO_OPT_G_IO_TYPE,
2125 },
2126 {
2127 .name = "overwrite",
2128 .lname = "Overwrite",
2129 .type = FIO_OPT_BOOL,
2130 .off1 = td_var_offset(overwrite),
2131 .help = "When writing, set whether to overwrite current data",
2132 .def = "0",
2133 .category = FIO_OPT_C_FILE,
2134 .group = FIO_OPT_G_INVALID,
2135 },
2136 {
2137 .name = "loops",
2138 .lname = "Loops",
2139 .type = FIO_OPT_INT,
2140 .off1 = td_var_offset(loops),
2141 .help = "Number of times to run the job",
2142 .def = "1",
2143 .interval = 1,
2144 .category = FIO_OPT_C_GENERAL,
2145 .group = FIO_OPT_G_RUNTIME,
2146 },
2147 {
2148 .name = "numjobs",
2149 .lname = "Number of jobs",
2150 .type = FIO_OPT_INT,
2151 .off1 = td_var_offset(numjobs),
2152 .help = "Duplicate this job this many times",
2153 .def = "1",
2154 .interval = 1,
2155 .category = FIO_OPT_C_GENERAL,
2156 .group = FIO_OPT_G_RUNTIME,
2157 },
2158 {
2159 .name = "startdelay",
2160 .lname = "Start delay",
2161 .type = FIO_OPT_STR_VAL_TIME,
2162 .off1 = td_var_offset(start_delay),
2163 .off2 = td_var_offset(start_delay_high),
2164 .help = "Only start job when this period has passed",
2165 .def = "0",
2166 .is_seconds = 1,
2167 .is_time = 1,
2168 .category = FIO_OPT_C_GENERAL,
2169 .group = FIO_OPT_G_RUNTIME,
2170 },
2171 {
2172 .name = "runtime",
2173 .lname = "Runtime",
2174 .alias = "timeout",
2175 .type = FIO_OPT_STR_VAL_TIME,
2176 .off1 = td_var_offset(timeout),
2177 .help = "Stop workload when this amount of time has passed",
2178 .def = "0",
2179 .is_seconds = 1,
2180 .is_time = 1,
2181 .category = FIO_OPT_C_GENERAL,
2182 .group = FIO_OPT_G_RUNTIME,
2183 },
2184 {
2185 .name = "time_based",
2186 .lname = "Time based",
2187 .type = FIO_OPT_STR_SET,
2188 .off1 = td_var_offset(time_based),
2189 .help = "Keep running until runtime/timeout is met",
2190 .category = FIO_OPT_C_GENERAL,
2191 .group = FIO_OPT_G_RUNTIME,
2192 },
2193 {
2194 .name = "verify_only",
2195 .lname = "Verify only",
2196 .type = FIO_OPT_STR_SET,
2197 .off1 = td_var_offset(verify_only),
2198 .help = "Verifies previously written data is still valid",
2199 .category = FIO_OPT_C_GENERAL,
2200 .group = FIO_OPT_G_RUNTIME,
2201 },
2202 {
2203 .name = "ramp_time",
2204 .lname = "Ramp time",
2205 .type = FIO_OPT_STR_VAL_TIME,
2206 .off1 = td_var_offset(ramp_time),
2207 .help = "Ramp up time before measuring performance",
2208 .is_seconds = 1,
2209 .is_time = 1,
2210 .category = FIO_OPT_C_GENERAL,
2211 .group = FIO_OPT_G_RUNTIME,
2212 },
2213 {
2214 .name = "clocksource",
2215 .lname = "Clock source",
2216 .type = FIO_OPT_STR,
2217 .cb = fio_clock_source_cb,
2218 .off1 = td_var_offset(clocksource),
2219 .help = "What type of timing source to use",
2220 .category = FIO_OPT_C_GENERAL,
2221 .group = FIO_OPT_G_CLOCK,
2222 .posval = {
2223#ifdef CONFIG_GETTIMEOFDAY
2224 { .ival = "gettimeofday",
2225 .oval = CS_GTOD,
2226 .help = "Use gettimeofday(2) for timing",
2227 },
2228#endif
2229#ifdef CONFIG_CLOCK_GETTIME
2230 { .ival = "clock_gettime",
2231 .oval = CS_CGETTIME,
2232 .help = "Use clock_gettime(2) for timing",
2233 },
2234#endif
2235#ifdef ARCH_HAVE_CPU_CLOCK
2236 { .ival = "cpu",
2237 .oval = CS_CPUCLOCK,
2238 .help = "Use CPU private clock",
2239 },
2240#endif
2241 },
2242 },
2243 {
2244 .name = "mem",
2245 .alias = "iomem",
2246 .lname = "I/O Memory",
2247 .type = FIO_OPT_STR,
2248 .cb = str_mem_cb,
2249 .off1 = td_var_offset(mem_type),
2250 .help = "Backing type for IO buffers",
2251 .def = "malloc",
2252 .category = FIO_OPT_C_IO,
2253 .group = FIO_OPT_G_INVALID,
2254 .posval = {
2255 { .ival = "malloc",
2256 .oval = MEM_MALLOC,
2257 .help = "Use malloc(3) for IO buffers",
2258 },
2259#ifndef CONFIG_NO_SHM
2260 { .ival = "shm",
2261 .oval = MEM_SHM,
2262 .help = "Use shared memory segments for IO buffers",
2263 },
2264#ifdef FIO_HAVE_HUGETLB
2265 { .ival = "shmhuge",
2266 .oval = MEM_SHMHUGE,
2267 .help = "Like shm, but use huge pages",
2268 },
2269#endif
2270#endif
2271 { .ival = "mmap",
2272 .oval = MEM_MMAP,
2273 .help = "Use mmap(2) (file or anon) for IO buffers",
2274 },
2275#ifdef FIO_HAVE_HUGETLB
2276 { .ival = "mmaphuge",
2277 .oval = MEM_MMAPHUGE,
2278 .help = "Like mmap, but use huge pages",
2279 },
2280#endif
2281 },
2282 },
2283 {
2284 .name = "iomem_align",
2285 .alias = "mem_align",
2286 .lname = "I/O memory alignment",
2287 .type = FIO_OPT_INT,
2288 .off1 = td_var_offset(mem_align),
2289 .minval = 0,
2290 .help = "IO memory buffer offset alignment",
2291 .def = "0",
2292 .parent = "iomem",
2293 .hide = 1,
2294 .category = FIO_OPT_C_IO,
2295 .group = FIO_OPT_G_INVALID,
2296 },
2297 {
2298 .name = "verify",
2299 .lname = "Verify",
2300 .type = FIO_OPT_STR,
2301 .off1 = td_var_offset(verify),
2302 .help = "Verify data written",
2303 .def = "0",
2304 .category = FIO_OPT_C_IO,
2305 .group = FIO_OPT_G_VERIFY,
2306 .posval = {
2307 { .ival = "0",
2308 .oval = VERIFY_NONE,
2309 .help = "Don't do IO verification",
2310 },
2311 { .ival = "md5",
2312 .oval = VERIFY_MD5,
2313 .help = "Use md5 checksums for verification",
2314 },
2315 { .ival = "crc64",
2316 .oval = VERIFY_CRC64,
2317 .help = "Use crc64 checksums for verification",
2318 },
2319 { .ival = "crc32",
2320 .oval = VERIFY_CRC32,
2321 .help = "Use crc32 checksums for verification",
2322 },
2323 { .ival = "crc32c-intel",
2324 .oval = VERIFY_CRC32C,
2325 .help = "Use crc32c checksums for verification (hw assisted, if available)",
2326 },
2327 { .ival = "crc32c",
2328 .oval = VERIFY_CRC32C,
2329 .help = "Use crc32c checksums for verification (hw assisted, if available)",
2330 },
2331 { .ival = "crc16",
2332 .oval = VERIFY_CRC16,
2333 .help = "Use crc16 checksums for verification",
2334 },
2335 { .ival = "crc7",
2336 .oval = VERIFY_CRC7,
2337 .help = "Use crc7 checksums for verification",
2338 },
2339 { .ival = "sha1",
2340 .oval = VERIFY_SHA1,
2341 .help = "Use sha1 checksums for verification",
2342 },
2343 { .ival = "sha256",
2344 .oval = VERIFY_SHA256,
2345 .help = "Use sha256 checksums for verification",
2346 },
2347 { .ival = "sha512",
2348 .oval = VERIFY_SHA512,
2349 .help = "Use sha512 checksums for verification",
2350 },
2351 { .ival = "xxhash",
2352 .oval = VERIFY_XXHASH,
2353 .help = "Use xxhash checksums for verification",
2354 },
2355 { .ival = "meta",
2356 .oval = VERIFY_META,
2357 .help = "Use io information",
2358 },
2359 {
2360 .ival = "null",
2361 .oval = VERIFY_NULL,
2362 .help = "Pretend to verify",
2363 },
2364 },
2365 },
2366 {
2367 .name = "do_verify",
2368 .lname = "Perform verify step",
2369 .type = FIO_OPT_BOOL,
2370 .off1 = td_var_offset(do_verify),
2371 .help = "Run verification stage after write",
2372 .def = "1",
2373 .parent = "verify",
2374 .hide = 1,
2375 .category = FIO_OPT_C_IO,
2376 .group = FIO_OPT_G_VERIFY,
2377 },
2378 {
2379 .name = "verifysort",
2380 .lname = "Verify sort",
2381 .type = FIO_OPT_BOOL,
2382 .off1 = td_var_offset(verifysort),
2383 .help = "Sort written verify blocks for read back",
2384 .def = "1",
2385 .parent = "verify",
2386 .hide = 1,
2387 .category = FIO_OPT_C_IO,
2388 .group = FIO_OPT_G_VERIFY,
2389 },
2390 {
2391 .name = "verifysort_nr",
2392 .type = FIO_OPT_INT,
2393 .off1 = td_var_offset(verifysort_nr),
2394 .help = "Pre-load and sort verify blocks for a read workload",
2395 .minval = 0,
2396 .maxval = 131072,
2397 .def = "1024",
2398 .parent = "verify",
2399 .category = FIO_OPT_C_IO,
2400 .group = FIO_OPT_G_VERIFY,
2401 },
2402 {
2403 .name = "verify_interval",
2404 .lname = "Verify interval",
2405 .type = FIO_OPT_INT,
2406 .off1 = td_var_offset(verify_interval),
2407 .minval = 2 * sizeof(struct verify_header),
2408 .help = "Store verify buffer header every N bytes",
2409 .parent = "verify",
2410 .hide = 1,
2411 .interval = 2 * sizeof(struct verify_header),
2412 .category = FIO_OPT_C_IO,
2413 .group = FIO_OPT_G_VERIFY,
2414 },
2415 {
2416 .name = "verify_offset",
2417 .lname = "Verify offset",
2418 .type = FIO_OPT_INT,
2419 .help = "Offset verify header location by N bytes",
2420 .off1 = td_var_offset(verify_offset),
2421 .minval = sizeof(struct verify_header),
2422 .parent = "verify",
2423 .hide = 1,
2424 .category = FIO_OPT_C_IO,
2425 .group = FIO_OPT_G_VERIFY,
2426 },
2427 {
2428 .name = "verify_pattern",
2429 .lname = "Verify pattern",
2430 .type = FIO_OPT_STR,
2431 .cb = str_verify_pattern_cb,
2432 .off1 = td_var_offset(verify_pattern),
2433 .help = "Fill pattern for IO buffers",
2434 .parent = "verify",
2435 .hide = 1,
2436 .category = FIO_OPT_C_IO,
2437 .group = FIO_OPT_G_VERIFY,
2438 },
2439 {
2440 .name = "verify_fatal",
2441 .lname = "Verify fatal",
2442 .type = FIO_OPT_BOOL,
2443 .off1 = td_var_offset(verify_fatal),
2444 .def = "0",
2445 .help = "Exit on a single verify failure, don't continue",
2446 .parent = "verify",
2447 .hide = 1,
2448 .category = FIO_OPT_C_IO,
2449 .group = FIO_OPT_G_VERIFY,
2450 },
2451 {
2452 .name = "verify_dump",
2453 .lname = "Verify dump",
2454 .type = FIO_OPT_BOOL,
2455 .off1 = td_var_offset(verify_dump),
2456 .def = "0",
2457 .help = "Dump contents of good and bad blocks on failure",
2458 .parent = "verify",
2459 .hide = 1,
2460 .category = FIO_OPT_C_IO,
2461 .group = FIO_OPT_G_VERIFY,
2462 },
2463 {
2464 .name = "verify_async",
2465 .lname = "Verify asynchronously",
2466 .type = FIO_OPT_INT,
2467 .off1 = td_var_offset(verify_async),
2468 .def = "0",
2469 .help = "Number of async verifier threads to use",
2470 .parent = "verify",
2471 .hide = 1,
2472 .category = FIO_OPT_C_IO,
2473 .group = FIO_OPT_G_VERIFY,
2474 },
2475 {
2476 .name = "verify_backlog",
2477 .lname = "Verify backlog",
2478 .type = FIO_OPT_STR_VAL,
2479 .off1 = td_var_offset(verify_backlog),
2480 .help = "Verify after this number of blocks are written",
2481 .parent = "verify",
2482 .hide = 1,
2483 .category = FIO_OPT_C_IO,
2484 .group = FIO_OPT_G_VERIFY,
2485 },
2486 {
2487 .name = "verify_backlog_batch",
2488 .lname = "Verify backlog batch",
2489 .type = FIO_OPT_INT,
2490 .off1 = td_var_offset(verify_batch),
2491 .help = "Verify this number of IO blocks",
2492 .parent = "verify",
2493 .hide = 1,
2494 .category = FIO_OPT_C_IO,
2495 .group = FIO_OPT_G_VERIFY,
2496 },
2497#ifdef FIO_HAVE_CPU_AFFINITY
2498 {
2499 .name = "verify_async_cpus",
2500 .lname = "Async verify CPUs",
2501 .type = FIO_OPT_STR,
2502 .cb = str_verify_cpus_allowed_cb,
2503 .off1 = td_var_offset(verify_cpumask),
2504 .help = "Set CPUs allowed for async verify threads",
2505 .parent = "verify_async",
2506 .hide = 1,
2507 .category = FIO_OPT_C_IO,
2508 .group = FIO_OPT_G_VERIFY,
2509 },
2510#endif
2511 {
2512 .name = "experimental_verify",
2513 .off1 = td_var_offset(experimental_verify),
2514 .type = FIO_OPT_BOOL,
2515 .help = "Enable experimental verification",
2516 .parent = "verify",
2517 .category = FIO_OPT_C_IO,
2518 .group = FIO_OPT_G_VERIFY,
2519 },
2520 {
2521 .name = "verify_state_load",
2522 .lname = "Load verify state",
2523 .off1 = td_var_offset(verify_state),
2524 .type = FIO_OPT_BOOL,
2525 .help = "Load verify termination state",
2526 .parent = "verify",
2527 .category = FIO_OPT_C_IO,
2528 .group = FIO_OPT_G_VERIFY,
2529 },
2530 {
2531 .name = "verify_state_save",
2532 .lname = "Save verify state",
2533 .off1 = td_var_offset(verify_state_save),
2534 .type = FIO_OPT_BOOL,
2535 .def = "1",
2536 .help = "Save verify state on termination",
2537 .parent = "verify",
2538 .category = FIO_OPT_C_IO,
2539 .group = FIO_OPT_G_VERIFY,
2540 },
2541#ifdef FIO_HAVE_TRIM
2542 {
2543 .name = "trim_percentage",
2544 .lname = "Trim percentage",
2545 .type = FIO_OPT_INT,
2546 .off1 = td_var_offset(trim_percentage),
2547 .minval = 0,
2548 .maxval = 100,
2549 .help = "Number of verify blocks to discard/trim",
2550 .parent = "verify",
2551 .def = "0",
2552 .interval = 1,
2553 .hide = 1,
2554 .category = FIO_OPT_C_IO,
2555 .group = FIO_OPT_G_TRIM,
2556 },
2557 {
2558 .name = "trim_verify_zero",
2559 .lname = "Verify trim zero",
2560 .type = FIO_OPT_BOOL,
2561 .help = "Verify that trim/discarded blocks are returned as zeroes",
2562 .off1 = td_var_offset(trim_zero),
2563 .parent = "trim_percentage",
2564 .hide = 1,
2565 .def = "1",
2566 .category = FIO_OPT_C_IO,
2567 .group = FIO_OPT_G_TRIM,
2568 },
2569 {
2570 .name = "trim_backlog",
2571 .lname = "Trim backlog",
2572 .type = FIO_OPT_STR_VAL,
2573 .off1 = td_var_offset(trim_backlog),
2574 .help = "Trim after this number of blocks are written",
2575 .parent = "trim_percentage",
2576 .hide = 1,
2577 .interval = 1,
2578 .category = FIO_OPT_C_IO,
2579 .group = FIO_OPT_G_TRIM,
2580 },
2581 {
2582 .name = "trim_backlog_batch",
2583 .lname = "Trim backlog batch",
2584 .type = FIO_OPT_INT,
2585 .off1 = td_var_offset(trim_batch),
2586 .help = "Trim this number of IO blocks",
2587 .parent = "trim_percentage",
2588 .hide = 1,
2589 .interval = 1,
2590 .category = FIO_OPT_C_IO,
2591 .group = FIO_OPT_G_TRIM,
2592 },
2593#endif
2594 {
2595 .name = "write_iolog",
2596 .lname = "Write I/O log",
2597 .type = FIO_OPT_STR_STORE,
2598 .off1 = td_var_offset(write_iolog_file),
2599 .help = "Store IO pattern to file",
2600 .category = FIO_OPT_C_IO,
2601 .group = FIO_OPT_G_IOLOG,
2602 },
2603 {
2604 .name = "read_iolog",
2605 .lname = "Read I/O log",
2606 .type = FIO_OPT_STR_STORE,
2607 .off1 = td_var_offset(read_iolog_file),
2608 .help = "Playback IO pattern from file",
2609 .category = FIO_OPT_C_IO,
2610 .group = FIO_OPT_G_IOLOG,
2611 },
2612 {
2613 .name = "replay_no_stall",
2614 .lname = "Don't stall on replay",
2615 .type = FIO_OPT_BOOL,
2616 .off1 = td_var_offset(no_stall),
2617 .def = "0",
2618 .parent = "read_iolog",
2619 .hide = 1,
2620 .help = "Playback IO pattern file as fast as possible without stalls",
2621 .category = FIO_OPT_C_IO,
2622 .group = FIO_OPT_G_IOLOG,
2623 },
2624 {
2625 .name = "replay_redirect",
2626 .lname = "Redirect device for replay",
2627 .type = FIO_OPT_STR_STORE,
2628 .off1 = td_var_offset(replay_redirect),
2629 .parent = "read_iolog",
2630 .hide = 1,
2631 .help = "Replay all I/O onto this device, regardless of trace device",
2632 .category = FIO_OPT_C_IO,
2633 .group = FIO_OPT_G_IOLOG,
2634 },
2635 {
2636 .name = "exec_prerun",
2637 .lname = "Pre-execute runnable",
2638 .type = FIO_OPT_STR_STORE,
2639 .off1 = td_var_offset(exec_prerun),
2640 .help = "Execute this file prior to running job",
2641 .category = FIO_OPT_C_GENERAL,
2642 .group = FIO_OPT_G_INVALID,
2643 },
2644 {
2645 .name = "exec_postrun",
2646 .lname = "Post-execute runnable",
2647 .type = FIO_OPT_STR_STORE,
2648 .off1 = td_var_offset(exec_postrun),
2649 .help = "Execute this file after running job",
2650 .category = FIO_OPT_C_GENERAL,
2651 .group = FIO_OPT_G_INVALID,
2652 },
2653#ifdef FIO_HAVE_IOSCHED_SWITCH
2654 {
2655 .name = "ioscheduler",
2656 .lname = "I/O scheduler",
2657 .type = FIO_OPT_STR_STORE,
2658 .off1 = td_var_offset(ioscheduler),
2659 .help = "Use this IO scheduler on the backing device",
2660 .category = FIO_OPT_C_FILE,
2661 .group = FIO_OPT_G_INVALID,
2662 },
2663#endif
2664 {
2665 .name = "zonesize",
2666 .lname = "Zone size",
2667 .type = FIO_OPT_STR_VAL,
2668 .off1 = td_var_offset(zone_size),
2669 .help = "Amount of data to read per zone",
2670 .def = "0",
2671 .interval = 1024 * 1024,
2672 .category = FIO_OPT_C_IO,
2673 .group = FIO_OPT_G_ZONE,
2674 },
2675 {
2676 .name = "zonerange",
2677 .lname = "Zone range",
2678 .type = FIO_OPT_STR_VAL,
2679 .off1 = td_var_offset(zone_range),
2680 .help = "Give size of an IO zone",
2681 .def = "0",
2682 .interval = 1024 * 1024,
2683 .category = FIO_OPT_C_IO,
2684 .group = FIO_OPT_G_ZONE,
2685 },
2686 {
2687 .name = "zoneskip",
2688 .lname = "Zone skip",
2689 .type = FIO_OPT_STR_VAL,
2690 .off1 = td_var_offset(zone_skip),
2691 .help = "Space between IO zones",
2692 .def = "0",
2693 .interval = 1024 * 1024,
2694 .category = FIO_OPT_C_IO,
2695 .group = FIO_OPT_G_ZONE,
2696 },
2697 {
2698 .name = "lockmem",
2699 .lname = "Lock memory",
2700 .type = FIO_OPT_STR_VAL,
2701 .off1 = td_var_offset(lockmem),
2702 .help = "Lock down this amount of memory (per worker)",
2703 .def = "0",
2704 .interval = 1024 * 1024,
2705 .category = FIO_OPT_C_GENERAL,
2706 .group = FIO_OPT_G_INVALID,
2707 },
2708 {
2709 .name = "rwmixread",
2710 .lname = "Read/write mix read",
2711 .type = FIO_OPT_INT,
2712 .cb = str_rwmix_read_cb,
2713 .off1 = td_var_offset(rwmix[DDIR_READ]),
2714 .maxval = 100,
2715 .help = "Percentage of mixed workload that is reads",
2716 .def = "50",
2717 .interval = 5,
2718 .inverse = "rwmixwrite",
2719 .category = FIO_OPT_C_IO,
2720 .group = FIO_OPT_G_RWMIX,
2721 },
2722 {
2723 .name = "rwmixwrite",
2724 .lname = "Read/write mix write",
2725 .type = FIO_OPT_INT,
2726 .cb = str_rwmix_write_cb,
2727 .off1 = td_var_offset(rwmix[DDIR_WRITE]),
2728 .maxval = 100,
2729 .help = "Percentage of mixed workload that is writes",
2730 .def = "50",
2731 .interval = 5,
2732 .inverse = "rwmixread",
2733 .category = FIO_OPT_C_IO,
2734 .group = FIO_OPT_G_RWMIX,
2735 },
2736 {
2737 .name = "rwmixcycle",
2738 .lname = "Read/write mix cycle",
2739 .type = FIO_OPT_DEPRECATED,
2740 .category = FIO_OPT_C_IO,
2741 .group = FIO_OPT_G_RWMIX,
2742 },
2743 {
2744 .name = "nice",
2745 .lname = "Nice",
2746 .type = FIO_OPT_INT,
2747 .off1 = td_var_offset(nice),
2748 .help = "Set job CPU nice value",
2749 .minval = -19,
2750 .maxval = 20,
2751 .def = "0",
2752 .interval = 1,
2753 .category = FIO_OPT_C_GENERAL,
2754 .group = FIO_OPT_G_CRED,
2755 },
2756#ifdef FIO_HAVE_IOPRIO
2757 {
2758 .name = "prio",
2759 .lname = "I/O nice priority",
2760 .type = FIO_OPT_INT,
2761 .off1 = td_var_offset(ioprio),
2762 .help = "Set job IO priority value",
2763 .minval = 0,
2764 .maxval = 7,
2765 .interval = 1,
2766 .category = FIO_OPT_C_GENERAL,
2767 .group = FIO_OPT_G_CRED,
2768 },
2769 {
2770 .name = "prioclass",
2771 .lname = "I/O nice priority class",
2772 .type = FIO_OPT_INT,
2773 .off1 = td_var_offset(ioprio_class),
2774 .help = "Set job IO priority class",
2775 .minval = 0,
2776 .maxval = 3,
2777 .interval = 1,
2778 .category = FIO_OPT_C_GENERAL,
2779 .group = FIO_OPT_G_CRED,
2780 },
2781#endif
2782 {
2783 .name = "thinktime",
2784 .lname = "Thinktime",
2785 .type = FIO_OPT_INT,
2786 .off1 = td_var_offset(thinktime),
2787 .help = "Idle time between IO buffers (usec)",
2788 .def = "0",
2789 .is_time = 1,
2790 .category = FIO_OPT_C_IO,
2791 .group = FIO_OPT_G_THINKTIME,
2792 },
2793 {
2794 .name = "thinktime_spin",
2795 .lname = "Thinktime spin",
2796 .type = FIO_OPT_INT,
2797 .off1 = td_var_offset(thinktime_spin),
2798 .help = "Start think time by spinning this amount (usec)",
2799 .def = "0",
2800 .is_time = 1,
2801 .parent = "thinktime",
2802 .hide = 1,
2803 .category = FIO_OPT_C_IO,
2804 .group = FIO_OPT_G_THINKTIME,
2805 },
2806 {
2807 .name = "thinktime_blocks",
2808 .lname = "Thinktime blocks",
2809 .type = FIO_OPT_INT,
2810 .off1 = td_var_offset(thinktime_blocks),
2811 .help = "IO buffer period between 'thinktime'",
2812 .def = "1",
2813 .parent = "thinktime",
2814 .hide = 1,
2815 .category = FIO_OPT_C_IO,
2816 .group = FIO_OPT_G_THINKTIME,
2817 },
2818 {
2819 .name = "rate",
2820 .lname = "I/O rate",
2821 .type = FIO_OPT_INT,
2822 .off1 = td_var_offset(rate[DDIR_READ]),
2823 .off2 = td_var_offset(rate[DDIR_WRITE]),
2824 .off3 = td_var_offset(rate[DDIR_TRIM]),
2825 .help = "Set bandwidth rate",
2826 .category = FIO_OPT_C_IO,
2827 .group = FIO_OPT_G_RATE,
2828 },
2829 {
2830 .name = "ratemin",
2831 .lname = "I/O min rate",
2832 .type = FIO_OPT_INT,
2833 .off1 = td_var_offset(ratemin[DDIR_READ]),
2834 .off2 = td_var_offset(ratemin[DDIR_WRITE]),
2835 .off3 = td_var_offset(ratemin[DDIR_TRIM]),
2836 .help = "Job must meet this rate or it will be shutdown",
2837 .parent = "rate",
2838 .hide = 1,
2839 .category = FIO_OPT_C_IO,
2840 .group = FIO_OPT_G_RATE,
2841 },
2842 {
2843 .name = "rate_iops",
2844 .lname = "I/O rate IOPS",
2845 .type = FIO_OPT_INT,
2846 .off1 = td_var_offset(rate_iops[DDIR_READ]),
2847 .off2 = td_var_offset(rate_iops[DDIR_WRITE]),
2848 .off3 = td_var_offset(rate_iops[DDIR_TRIM]),
2849 .help = "Limit IO used to this number of IO operations/sec",
2850 .hide = 1,
2851 .category = FIO_OPT_C_IO,
2852 .group = FIO_OPT_G_RATE,
2853 },
2854 {
2855 .name = "rate_iops_min",
2856 .lname = "I/O min rate IOPS",
2857 .type = FIO_OPT_INT,
2858 .off1 = td_var_offset(rate_iops_min[DDIR_READ]),
2859 .off2 = td_var_offset(rate_iops_min[DDIR_WRITE]),
2860 .off3 = td_var_offset(rate_iops_min[DDIR_TRIM]),
2861 .help = "Job must meet this rate or it will be shut down",
2862 .parent = "rate_iops",
2863 .hide = 1,
2864 .category = FIO_OPT_C_IO,
2865 .group = FIO_OPT_G_RATE,
2866 },
2867 {
2868 .name = "ratecycle",
2869 .lname = "I/O rate cycle",
2870 .type = FIO_OPT_INT,
2871 .off1 = td_var_offset(ratecycle),
2872 .help = "Window average for rate limits (msec)",
2873 .def = "1000",
2874 .parent = "rate",
2875 .hide = 1,
2876 .category = FIO_OPT_C_IO,
2877 .group = FIO_OPT_G_RATE,
2878 },
2879 {
2880 .name = "max_latency",
2881 .type = FIO_OPT_INT,
2882 .off1 = td_var_offset(max_latency),
2883 .help = "Maximum tolerated IO latency (usec)",
2884 .is_time = 1,
2885 .category = FIO_OPT_C_IO,
2886 .group = FIO_OPT_G_LATPROF,
2887 },
2888 {
2889 .name = "latency_target",
2890 .lname = "Latency Target (usec)",
2891 .type = FIO_OPT_STR_VAL_TIME,
2892 .off1 = td_var_offset(latency_target),
2893 .help = "Ramp to max queue depth supporting this latency",
2894 .is_time = 1,
2895 .category = FIO_OPT_C_IO,
2896 .group = FIO_OPT_G_LATPROF,
2897 },
2898 {
2899 .name = "latency_window",
2900 .lname = "Latency Window (usec)",
2901 .type = FIO_OPT_STR_VAL_TIME,
2902 .off1 = td_var_offset(latency_window),
2903 .help = "Time to sustain latency_target",
2904 .is_time = 1,
2905 .category = FIO_OPT_C_IO,
2906 .group = FIO_OPT_G_LATPROF,
2907 },
2908 {
2909 .name = "latency_percentile",
2910 .lname = "Latency Percentile",
2911 .type = FIO_OPT_FLOAT_LIST,
2912 .off1 = td_var_offset(latency_percentile),
2913 .help = "Percentile of IOs must be below latency_target",
2914 .def = "100",
2915 .maxlen = 1,
2916 .minfp = 0.0,
2917 .maxfp = 100.0,
2918 .category = FIO_OPT_C_IO,
2919 .group = FIO_OPT_G_LATPROF,
2920 },
2921 {
2922 .name = "invalidate",
2923 .lname = "Cache invalidate",
2924 .type = FIO_OPT_BOOL,
2925 .off1 = td_var_offset(invalidate_cache),
2926 .help = "Invalidate buffer/page cache prior to running job",
2927 .def = "1",
2928 .category = FIO_OPT_C_IO,
2929 .group = FIO_OPT_G_IO_TYPE,
2930 },
2931 {
2932 .name = "sync",
2933 .lname = "Synchronous I/O",
2934 .type = FIO_OPT_BOOL,
2935 .off1 = td_var_offset(sync_io),
2936 .help = "Use O_SYNC for buffered writes",
2937 .def = "0",
2938 .parent = "buffered",
2939 .hide = 1,
2940 .category = FIO_OPT_C_IO,
2941 .group = FIO_OPT_G_IO_TYPE,
2942 },
2943 {
2944 .name = "create_serialize",
2945 .lname = "Create serialize",
2946 .type = FIO_OPT_BOOL,
2947 .off1 = td_var_offset(create_serialize),
2948 .help = "Serialize creating of job files",
2949 .def = "1",
2950 .category = FIO_OPT_C_FILE,
2951 .group = FIO_OPT_G_INVALID,
2952 },
2953 {
2954 .name = "create_fsync",
2955 .lname = "Create fsync",
2956 .type = FIO_OPT_BOOL,
2957 .off1 = td_var_offset(create_fsync),
2958 .help = "fsync file after creation",
2959 .def = "1",
2960 .category = FIO_OPT_C_FILE,
2961 .group = FIO_OPT_G_INVALID,
2962 },
2963 {
2964 .name = "create_on_open",
2965 .lname = "Create on open",
2966 .type = FIO_OPT_BOOL,
2967 .off1 = td_var_offset(create_on_open),
2968 .help = "Create files when they are opened for IO",
2969 .def = "0",
2970 .category = FIO_OPT_C_FILE,
2971 .group = FIO_OPT_G_INVALID,
2972 },
2973 {
2974 .name = "create_only",
2975 .type = FIO_OPT_BOOL,
2976 .off1 = td_var_offset(create_only),
2977 .help = "Only perform file creation phase",
2978 .category = FIO_OPT_C_FILE,
2979 .def = "0",
2980 },
2981 {
2982 .name = "pre_read",
2983 .lname = "Pre-read files",
2984 .type = FIO_OPT_BOOL,
2985 .off1 = td_var_offset(pre_read),
2986 .help = "Pre-read files before starting official testing",
2987 .def = "0",
2988 .category = FIO_OPT_C_FILE,
2989 .group = FIO_OPT_G_INVALID,
2990 },
2991#ifdef FIO_HAVE_CPU_AFFINITY
2992 {
2993 .name = "cpumask",
2994 .lname = "CPU mask",
2995 .type = FIO_OPT_INT,
2996 .cb = str_cpumask_cb,
2997 .off1 = td_var_offset(cpumask),
2998 .help = "CPU affinity mask",
2999 .category = FIO_OPT_C_GENERAL,
3000 .group = FIO_OPT_G_CRED,
3001 },
3002 {
3003 .name = "cpus_allowed",
3004 .lname = "CPUs allowed",
3005 .type = FIO_OPT_STR,
3006 .cb = str_cpus_allowed_cb,
3007 .off1 = td_var_offset(cpumask),
3008 .help = "Set CPUs allowed",
3009 .category = FIO_OPT_C_GENERAL,
3010 .group = FIO_OPT_G_CRED,
3011 },
3012 {
3013 .name = "cpus_allowed_policy",
3014 .lname = "CPUs allowed distribution policy",
3015 .type = FIO_OPT_STR,
3016 .off1 = td_var_offset(cpus_allowed_policy),
3017 .help = "Distribution policy for cpus_allowed",
3018 .parent = "cpus_allowed",
3019 .prio = 1,
3020 .posval = {
3021 { .ival = "shared",
3022 .oval = FIO_CPUS_SHARED,
3023 .help = "Mask shared between threads",
3024 },
3025 { .ival = "split",
3026 .oval = FIO_CPUS_SPLIT,
3027 .help = "Mask split between threads",
3028 },
3029 },
3030 .category = FIO_OPT_C_GENERAL,
3031 .group = FIO_OPT_G_CRED,
3032 },
3033#endif
3034#ifdef CONFIG_LIBNUMA
3035 {
3036 .name = "numa_cpu_nodes",
3037 .type = FIO_OPT_STR,
3038 .cb = str_numa_cpunodes_cb,
3039 .off1 = td_var_offset(numa_cpunodes),
3040 .help = "NUMA CPU nodes bind",
3041 .category = FIO_OPT_C_GENERAL,
3042 .group = FIO_OPT_G_INVALID,
3043 },
3044 {
3045 .name = "numa_mem_policy",
3046 .type = FIO_OPT_STR,
3047 .cb = str_numa_mpol_cb,
3048 .off1 = td_var_offset(numa_memnodes),
3049 .help = "NUMA memory policy setup",
3050 .category = FIO_OPT_C_GENERAL,
3051 .group = FIO_OPT_G_INVALID,
3052 },
3053#endif
3054 {
3055 .name = "end_fsync",
3056 .lname = "End fsync",
3057 .type = FIO_OPT_BOOL,
3058 .off1 = td_var_offset(end_fsync),
3059 .help = "Include fsync at the end of job",
3060 .def = "0",
3061 .category = FIO_OPT_C_FILE,
3062 .group = FIO_OPT_G_INVALID,
3063 },
3064 {
3065 .name = "fsync_on_close",
3066 .lname = "Fsync on close",
3067 .type = FIO_OPT_BOOL,
3068 .off1 = td_var_offset(fsync_on_close),
3069 .help = "fsync files on close",
3070 .def = "0",
3071 .category = FIO_OPT_C_FILE,
3072 .group = FIO_OPT_G_INVALID,
3073 },
3074 {
3075 .name = "unlink",
3076 .lname = "Unlink file",
3077 .type = FIO_OPT_BOOL,
3078 .off1 = td_var_offset(unlink),
3079 .help = "Unlink created files after job has completed",
3080 .def = "0",
3081 .category = FIO_OPT_C_FILE,
3082 .group = FIO_OPT_G_INVALID,
3083 },
3084 {
3085 .name = "exitall",
3086 .lname = "Exit-all on terminate",
3087 .type = FIO_OPT_STR_SET,
3088 .cb = str_exitall_cb,
3089 .help = "Terminate all jobs when one exits",
3090 .category = FIO_OPT_C_GENERAL,
3091 .group = FIO_OPT_G_PROCESS,
3092 },
3093 {
3094 .name = "stonewall",
3095 .lname = "Wait for previous",
3096 .alias = "wait_for_previous",
3097 .type = FIO_OPT_STR_SET,
3098 .off1 = td_var_offset(stonewall),
3099 .help = "Insert a hard barrier between this job and previous",
3100 .category = FIO_OPT_C_GENERAL,
3101 .group = FIO_OPT_G_PROCESS,
3102 },
3103 {
3104 .name = "new_group",
3105 .lname = "New group",
3106 .type = FIO_OPT_STR_SET,
3107 .off1 = td_var_offset(new_group),
3108 .help = "Mark the start of a new group (for reporting)",
3109 .category = FIO_OPT_C_GENERAL,
3110 .group = FIO_OPT_G_PROCESS,
3111 },
3112 {
3113 .name = "thread",
3114 .lname = "Thread",
3115 .type = FIO_OPT_STR_SET,
3116 .off1 = td_var_offset(use_thread),
3117 .help = "Use threads instead of processes",
3118#ifdef CONFIG_NO_SHM
3119 .def = "1",
3120 .no_warn_def = 1,
3121#endif
3122 .category = FIO_OPT_C_GENERAL,
3123 .group = FIO_OPT_G_PROCESS,
3124 },
3125 {
3126 .name = "write_bw_log",
3127 .lname = "Write bandwidth log",
3128 .type = FIO_OPT_STR_STORE,
3129 .off1 = td_var_offset(bw_log_file),
3130 .help = "Write log of bandwidth during run",
3131 .category = FIO_OPT_C_LOG,
3132 .group = FIO_OPT_G_INVALID,
3133 },
3134 {
3135 .name = "write_lat_log",
3136 .lname = "Write latency log",
3137 .type = FIO_OPT_STR_STORE,
3138 .off1 = td_var_offset(lat_log_file),
3139 .help = "Write log of latency during run",
3140 .category = FIO_OPT_C_LOG,
3141 .group = FIO_OPT_G_INVALID,
3142 },
3143 {
3144 .name = "write_iops_log",
3145 .lname = "Write IOPS log",
3146 .type = FIO_OPT_STR_STORE,
3147 .off1 = td_var_offset(iops_log_file),
3148 .help = "Write log of IOPS during run",
3149 .category = FIO_OPT_C_LOG,
3150 .group = FIO_OPT_G_INVALID,
3151 },
3152 {
3153 .name = "log_avg_msec",
3154 .lname = "Log averaging (msec)",
3155 .type = FIO_OPT_INT,
3156 .off1 = td_var_offset(log_avg_msec),
3157 .help = "Average bw/iops/lat logs over this period of time",
3158 .def = "0",
3159 .category = FIO_OPT_C_LOG,
3160 .group = FIO_OPT_G_INVALID,
3161 },
3162 {
3163 .name = "log_offset",
3164 .lname = "Log offset of IO",
3165 .type = FIO_OPT_BOOL,
3166 .off1 = td_var_offset(log_offset),
3167 .help = "Include offset of IO for each log entry",
3168 .def = "0",
3169 .category = FIO_OPT_C_LOG,
3170 .group = FIO_OPT_G_INVALID,
3171 },
3172#ifdef CONFIG_ZLIB
3173 {
3174 .name = "log_compression",
3175 .lname = "Log compression",
3176 .type = FIO_OPT_INT,
3177 .off1 = td_var_offset(log_gz),
3178 .help = "Log in compressed chunks of this size",
3179 .minval = 32 * 1024 * 1024ULL,
3180 .maxval = 512 * 1024 * 1024ULL,
3181 .category = FIO_OPT_C_LOG,
3182 .group = FIO_OPT_G_INVALID,
3183 },
3184 {
3185 .name = "log_store_compressed",
3186 .lname = "Log store compressed",
3187 .type = FIO_OPT_BOOL,
3188 .off1 = td_var_offset(log_gz_store),
3189 .help = "Store logs in a compressed format",
3190 .category = FIO_OPT_C_LOG,
3191 .group = FIO_OPT_G_INVALID,
3192 },
3193#endif
3194 {
3195 .name = "bwavgtime",
3196 .lname = "Bandwidth average time",
3197 .type = FIO_OPT_INT,
3198 .off1 = td_var_offset(bw_avg_time),
3199 .help = "Time window over which to calculate bandwidth"
3200 " (msec)",
3201 .def = "500",
3202 .parent = "write_bw_log",
3203 .hide = 1,
3204 .interval = 100,
3205 .category = FIO_OPT_C_LOG,
3206 .group = FIO_OPT_G_INVALID,
3207 },
3208 {
3209 .name = "iopsavgtime",
3210 .lname = "IOPS average time",
3211 .type = FIO_OPT_INT,
3212 .off1 = td_var_offset(iops_avg_time),
3213 .help = "Time window over which to calculate IOPS (msec)",
3214 .def = "500",
3215 .parent = "write_iops_log",
3216 .hide = 1,
3217 .interval = 100,
3218 .category = FIO_OPT_C_LOG,
3219 .group = FIO_OPT_G_INVALID,
3220 },
3221 {
3222 .name = "group_reporting",
3223 .lname = "Group reporting",
3224 .type = FIO_OPT_STR_SET,
3225 .off1 = td_var_offset(group_reporting),
3226 .help = "Do reporting on a per-group basis",
3227 .category = FIO_OPT_C_STAT,
3228 .group = FIO_OPT_G_INVALID,
3229 },
3230 {
3231 .name = "zero_buffers",
3232 .lname = "Zero I/O buffers",
3233 .type = FIO_OPT_STR_SET,
3234 .off1 = td_var_offset(zero_buffers),
3235 .help = "Init IO buffers to all zeroes",
3236 .category = FIO_OPT_C_IO,
3237 .group = FIO_OPT_G_IO_BUF,
3238 },
3239 {
3240 .name = "refill_buffers",
3241 .lname = "Refill I/O buffers",
3242 .type = FIO_OPT_STR_SET,
3243 .off1 = td_var_offset(refill_buffers),
3244 .help = "Refill IO buffers on every IO submit",
3245 .category = FIO_OPT_C_IO,
3246 .group = FIO_OPT_G_IO_BUF,
3247 },
3248 {
3249 .name = "scramble_buffers",
3250 .lname = "Scramble I/O buffers",
3251 .type = FIO_OPT_BOOL,
3252 .off1 = td_var_offset(scramble_buffers),
3253 .help = "Slightly scramble buffers on every IO submit",
3254 .def = "1",
3255 .category = FIO_OPT_C_IO,
3256 .group = FIO_OPT_G_IO_BUF,
3257 },
3258 {
3259 .name = "buffer_pattern",
3260 .lname = "Buffer pattern",
3261 .type = FIO_OPT_STR,
3262 .cb = str_buffer_pattern_cb,
3263 .off1 = td_var_offset(buffer_pattern),
3264 .help = "Fill pattern for IO buffers",
3265 .category = FIO_OPT_C_IO,
3266 .group = FIO_OPT_G_IO_BUF,
3267 },
3268 {
3269 .name = "buffer_compress_percentage",
3270 .lname = "Buffer compression percentage",
3271 .type = FIO_OPT_INT,
3272 .cb = str_buffer_compress_cb,
3273 .off1 = td_var_offset(compress_percentage),
3274 .maxval = 100,
3275 .minval = 0,
3276 .help = "How compressible the buffer is (approximately)",
3277 .interval = 5,
3278 .category = FIO_OPT_C_IO,
3279 .group = FIO_OPT_G_IO_BUF,
3280 },
3281 {
3282 .name = "buffer_compress_chunk",
3283 .lname = "Buffer compression chunk size",
3284 .type = FIO_OPT_INT,
3285 .off1 = td_var_offset(compress_chunk),
3286 .parent = "buffer_compress_percentage",
3287 .hide = 1,
3288 .help = "Size of compressible region in buffer",
3289 .interval = 256,
3290 .category = FIO_OPT_C_IO,
3291 .group = FIO_OPT_G_IO_BUF,
3292 },
3293 {
3294 .name = "dedupe_percentage",
3295 .lname = "Dedupe percentage",
3296 .type = FIO_OPT_INT,
3297 .cb = str_dedupe_cb,
3298 .off1 = td_var_offset(dedupe_percentage),
3299 .maxval = 100,
3300 .minval = 0,
3301 .help = "Percentage of buffers that are dedupable",
3302 .interval = 1,
3303 .category = FIO_OPT_C_IO,
3304 .group = FIO_OPT_G_IO_BUF,
3305 },
3306 {
3307 .name = "clat_percentiles",
3308 .lname = "Completion latency percentiles",
3309 .type = FIO_OPT_BOOL,
3310 .off1 = td_var_offset(clat_percentiles),
3311 .help = "Enable the reporting of completion latency percentiles",
3312 .def = "1",
3313 .category = FIO_OPT_C_STAT,
3314 .group = FIO_OPT_G_INVALID,
3315 },
3316 {
3317 .name = "percentile_list",
3318 .lname = "Completion latency percentile list",
3319 .type = FIO_OPT_FLOAT_LIST,
3320 .off1 = td_var_offset(percentile_list),
3321 .off2 = td_var_offset(percentile_precision),
3322 .help = "Specify a custom list of percentiles to report",
3323 .def = "1:5:10:20:30:40:50:60:70:80:90:95:99:99.5:99.9:99.95:99.99",
3324 .maxlen = FIO_IO_U_LIST_MAX_LEN,
3325 .minfp = 0.0,
3326 .maxfp = 100.0,
3327 .category = FIO_OPT_C_STAT,
3328 .group = FIO_OPT_G_INVALID,
3329 },
3330
3331#ifdef FIO_HAVE_DISK_UTIL
3332 {
3333 .name = "disk_util",
3334 .lname = "Disk utilization",
3335 .type = FIO_OPT_BOOL,
3336 .off1 = td_var_offset(do_disk_util),
3337 .help = "Log disk utilization statistics",
3338 .def = "1",
3339 .category = FIO_OPT_C_STAT,
3340 .group = FIO_OPT_G_INVALID,
3341 },
3342#endif
3343 {
3344 .name = "gtod_reduce",
3345 .lname = "Reduce gettimeofday() calls",
3346 .type = FIO_OPT_BOOL,
3347 .help = "Greatly reduce number of gettimeofday() calls",
3348 .cb = str_gtod_reduce_cb,
3349 .def = "0",
3350 .hide_on_set = 1,
3351 .category = FIO_OPT_C_STAT,
3352 .group = FIO_OPT_G_INVALID,
3353 },
3354 {
3355 .name = "disable_lat",
3356 .lname = "Disable all latency stats",
3357 .type = FIO_OPT_BOOL,
3358 .off1 = td_var_offset(disable_lat),
3359 .help = "Disable latency numbers",
3360 .parent = "gtod_reduce",
3361 .hide = 1,
3362 .def = "0",
3363 .category = FIO_OPT_C_STAT,
3364 .group = FIO_OPT_G_INVALID,
3365 },
3366 {
3367 .name = "disable_clat",
3368 .lname = "Disable completion latency stats",
3369 .type = FIO_OPT_BOOL,
3370 .off1 = td_var_offset(disable_clat),
3371 .help = "Disable completion latency numbers",
3372 .parent = "gtod_reduce",
3373 .hide = 1,
3374 .def = "0",
3375 .category = FIO_OPT_C_STAT,
3376 .group = FIO_OPT_G_INVALID,
3377 },
3378 {
3379 .name = "disable_slat",
3380 .lname = "Disable submission latency stats",
3381 .type = FIO_OPT_BOOL,
3382 .off1 = td_var_offset(disable_slat),
3383 .help = "Disable submission latency numbers",
3384 .parent = "gtod_reduce",
3385 .hide = 1,
3386 .def = "0",
3387 .category = FIO_OPT_C_STAT,
3388 .group = FIO_OPT_G_INVALID,
3389 },
3390 {
3391 .name = "disable_bw_measurement",
3392 .lname = "Disable bandwidth stats",
3393 .type = FIO_OPT_BOOL,
3394 .off1 = td_var_offset(disable_bw),
3395 .help = "Disable bandwidth logging",
3396 .parent = "gtod_reduce",
3397 .hide = 1,
3398 .def = "0",
3399 .category = FIO_OPT_C_STAT,
3400 .group = FIO_OPT_G_INVALID,
3401 },
3402 {
3403 .name = "gtod_cpu",
3404 .lname = "Dedicated gettimeofday() CPU",
3405 .type = FIO_OPT_INT,
3406 .cb = str_gtod_cpu_cb,
3407 .help = "Set up dedicated gettimeofday() thread on this CPU",
3408 .verify = gtod_cpu_verify,
3409 .category = FIO_OPT_C_GENERAL,
3410 .group = FIO_OPT_G_CLOCK,
3411 },
3412 {
3413 .name = "unified_rw_reporting",
3414 .type = FIO_OPT_BOOL,
3415 .off1 = td_var_offset(unified_rw_rep),
3416 .help = "Unify reporting across data direction",
3417 .def = "0",
3418 .category = FIO_OPT_C_GENERAL,
3419 .group = FIO_OPT_G_INVALID,
3420 },
3421 {
3422 .name = "continue_on_error",
3423 .lname = "Continue on error",
3424 .type = FIO_OPT_STR,
3425 .off1 = td_var_offset(continue_on_error),
3426 .help = "Continue on non-fatal errors during IO",
3427 .def = "none",
3428 .category = FIO_OPT_C_GENERAL,
3429 .group = FIO_OPT_G_ERR,
3430 .posval = {
3431 { .ival = "none",
3432 .oval = ERROR_TYPE_NONE,
3433 .help = "Exit when an error is encountered",
3434 },
3435 { .ival = "read",
3436 .oval = ERROR_TYPE_READ,
3437 .help = "Continue on read errors only",
3438 },
3439 { .ival = "write",
3440 .oval = ERROR_TYPE_WRITE,
3441 .help = "Continue on write errors only",
3442 },
3443 { .ival = "io",
3444 .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
3445 .help = "Continue on any IO errors",
3446 },
3447 { .ival = "verify",
3448 .oval = ERROR_TYPE_VERIFY,
3449 .help = "Continue on verify errors only",
3450 },
3451 { .ival = "all",
3452 .oval = ERROR_TYPE_ANY,
3453 .help = "Continue on all io and verify errors",
3454 },
3455 { .ival = "0",
3456 .oval = ERROR_TYPE_NONE,
3457 .help = "Alias for 'none'",
3458 },
3459 { .ival = "1",
3460 .oval = ERROR_TYPE_ANY,
3461 .help = "Alias for 'all'",
3462 },
3463 },
3464 },
3465 {
3466 .name = "ignore_error",
3467 .type = FIO_OPT_STR,
3468 .cb = str_ignore_error_cb,
3469 .off1 = td_var_offset(ignore_error_nr),
3470 .help = "Set a specific list of errors to ignore",
3471 .parent = "rw",
3472 .category = FIO_OPT_C_GENERAL,
3473 .group = FIO_OPT_G_ERR,
3474 },
3475 {
3476 .name = "error_dump",
3477 .type = FIO_OPT_BOOL,
3478 .off1 = td_var_offset(error_dump),
3479 .def = "0",
3480 .help = "Dump info on each error",
3481 .category = FIO_OPT_C_GENERAL,
3482 .group = FIO_OPT_G_ERR,
3483 },
3484 {
3485 .name = "profile",
3486 .lname = "Profile",
3487 .type = FIO_OPT_STR_STORE,
3488 .off1 = td_var_offset(profile),
3489 .help = "Select a specific builtin performance test",
3490 .category = FIO_OPT_C_PROFILE,
3491 .group = FIO_OPT_G_INVALID,
3492 },
3493 {
3494 .name = "cgroup",
3495 .lname = "Cgroup",
3496 .type = FIO_OPT_STR_STORE,
3497 .off1 = td_var_offset(cgroup),
3498 .help = "Add job to cgroup of this name",
3499 .category = FIO_OPT_C_GENERAL,
3500 .group = FIO_OPT_G_CGROUP,
3501 },
3502 {
3503 .name = "cgroup_nodelete",
3504 .lname = "Cgroup no-delete",
3505 .type = FIO_OPT_BOOL,
3506 .off1 = td_var_offset(cgroup_nodelete),
3507 .help = "Do not delete cgroups after job completion",
3508 .def = "0",
3509 .parent = "cgroup",
3510 .category = FIO_OPT_C_GENERAL,
3511 .group = FIO_OPT_G_CGROUP,
3512 },
3513 {
3514 .name = "cgroup_weight",
3515 .lname = "Cgroup weight",
3516 .type = FIO_OPT_INT,
3517 .off1 = td_var_offset(cgroup_weight),
3518 .help = "Use given weight for cgroup",
3519 .minval = 100,
3520 .maxval = 1000,
3521 .parent = "cgroup",
3522 .category = FIO_OPT_C_GENERAL,
3523 .group = FIO_OPT_G_CGROUP,
3524 },
3525 {
3526 .name = "uid",
3527 .lname = "User ID",
3528 .type = FIO_OPT_INT,
3529 .off1 = td_var_offset(uid),
3530 .help = "Run job with this user ID",
3531 .category = FIO_OPT_C_GENERAL,
3532 .group = FIO_OPT_G_CRED,
3533 },
3534 {
3535 .name = "gid",
3536 .lname = "Group ID",
3537 .type = FIO_OPT_INT,
3538 .off1 = td_var_offset(gid),
3539 .help = "Run job with this group ID",
3540 .category = FIO_OPT_C_GENERAL,
3541 .group = FIO_OPT_G_CRED,
3542 },
3543 {
3544 .name = "kb_base",
3545 .lname = "KB Base",
3546 .type = FIO_OPT_INT,
3547 .off1 = td_var_offset(kb_base),
3548 .prio = 1,
3549 .def = "1024",
3550 .posval = {
3551 { .ival = "1024",
3552 .oval = 1024,
3553 .help = "Use 1024 as the K base",
3554 },
3555 { .ival = "1000",
3556 .oval = 1000,
3557 .help = "Use 1000 as the K base",
3558 },
3559 },
3560 .help = "How many bytes per KB for reporting (1000 or 1024)",
3561 .category = FIO_OPT_C_GENERAL,
3562 .group = FIO_OPT_G_INVALID,
3563 },
3564 {
3565 .name = "unit_base",
3566 .lname = "Base unit for reporting (Bits or Bytes)",
3567 .type = FIO_OPT_INT,
3568 .off1 = td_var_offset(unit_base),
3569 .prio = 1,
3570 .posval = {
3571 { .ival = "0",
3572 .oval = 0,
3573 .help = "Auto-detect",
3574 },
3575 { .ival = "8",
3576 .oval = 8,
3577 .help = "Normal (byte based)",
3578 },
3579 { .ival = "1",
3580 .oval = 1,
3581 .help = "Bit based",
3582 },
3583 },
3584 .help = "Bit multiple of result summary data (8 for byte, 1 for bit)",
3585 .category = FIO_OPT_C_GENERAL,
3586 .group = FIO_OPT_G_INVALID,
3587 },
3588 {
3589 .name = "hugepage-size",
3590 .lname = "Hugepage size",
3591 .type = FIO_OPT_INT,
3592 .off1 = td_var_offset(hugepage_size),
3593 .help = "When using hugepages, specify size of each page",
3594 .def = __fio_stringify(FIO_HUGE_PAGE),
3595 .interval = 1024 * 1024,
3596 .category = FIO_OPT_C_GENERAL,
3597 .group = FIO_OPT_G_INVALID,
3598 },
3599 {
3600 .name = "flow_id",
3601 .lname = "I/O flow ID",
3602 .type = FIO_OPT_INT,
3603 .off1 = td_var_offset(flow_id),
3604 .help = "The flow index ID to use",
3605 .def = "0",
3606 .category = FIO_OPT_C_IO,
3607 .group = FIO_OPT_G_IO_FLOW,
3608 },
3609 {
3610 .name = "flow",
3611 .lname = "I/O flow weight",
3612 .type = FIO_OPT_INT,
3613 .off1 = td_var_offset(flow),
3614 .help = "Weight for flow control of this job",
3615 .parent = "flow_id",
3616 .hide = 1,
3617 .def = "0",
3618 .category = FIO_OPT_C_IO,
3619 .group = FIO_OPT_G_IO_FLOW,
3620 },
3621 {
3622 .name = "flow_watermark",
3623 .lname = "I/O flow watermark",
3624 .type = FIO_OPT_INT,
3625 .off1 = td_var_offset(flow_watermark),
3626 .help = "High watermark for flow control. This option"
3627 " should be set to the same value for all threads"
3628 " with non-zero flow.",
3629 .parent = "flow_id",
3630 .hide = 1,
3631 .def = "1024",
3632 .category = FIO_OPT_C_IO,
3633 .group = FIO_OPT_G_IO_FLOW,
3634 },
3635 {
3636 .name = "flow_sleep",
3637 .lname = "I/O flow sleep",
3638 .type = FIO_OPT_INT,
3639 .off1 = td_var_offset(flow_sleep),
3640 .help = "How many microseconds to sleep after being held"
3641 " back by the flow control mechanism",
3642 .parent = "flow_id",
3643 .hide = 1,
3644 .def = "0",
3645 .category = FIO_OPT_C_IO,
3646 .group = FIO_OPT_G_IO_FLOW,
3647 },
3648 {
3649 .name = NULL,
3650 },
3651};
3652
3653static void add_to_lopt(struct option *lopt, struct fio_option *o,
3654 const char *name, int val)
3655{
3656 lopt->name = (char *) name;
3657 lopt->val = val;
3658 if (o->type == FIO_OPT_STR_SET)
3659 lopt->has_arg = optional_argument;
3660 else
3661 lopt->has_arg = required_argument;
3662}
3663
3664static void options_to_lopts(struct fio_option *opts,
3665 struct option *long_options,
3666 int i, int option_type)
3667{
3668 struct fio_option *o = &opts[0];
3669 while (o->name) {
3670 add_to_lopt(&long_options[i], o, o->name, option_type);
3671 if (o->alias) {
3672 i++;
3673 add_to_lopt(&long_options[i], o, o->alias, option_type);
3674 }
3675
3676 i++;
3677 o++;
3678 assert(i < FIO_NR_OPTIONS);
3679 }
3680}
3681
3682void fio_options_set_ioengine_opts(struct option *long_options,
3683 struct thread_data *td)
3684{
3685 unsigned int i;
3686
3687 i = 0;
3688 while (long_options[i].name) {
3689 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
3690 memset(&long_options[i], 0, sizeof(*long_options));
3691 break;
3692 }
3693 i++;
3694 }
3695
3696 /*
3697 * Just clear out the prior ioengine options.
3698 */
3699 if (!td || !td->eo)
3700 return;
3701
3702 options_to_lopts(td->io_ops->options, long_options, i,
3703 FIO_GETOPT_IOENGINE);
3704}
3705
3706void fio_options_dup_and_init(struct option *long_options)
3707{
3708 unsigned int i;
3709
3710 options_init(fio_options);
3711
3712 i = 0;
3713 while (long_options[i].name)
3714 i++;
3715
3716 options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
3717}
3718
3719struct fio_keyword {
3720 const char *word;
3721 const char *desc;
3722 char *replace;
3723};
3724
3725static struct fio_keyword fio_keywords[] = {
3726 {
3727 .word = "$pagesize",
3728 .desc = "Page size in the system",
3729 },
3730 {
3731 .word = "$mb_memory",
3732 .desc = "Megabytes of memory online",
3733 },
3734 {
3735 .word = "$ncpus",
3736 .desc = "Number of CPUs online in the system",
3737 },
3738 {
3739 .word = NULL,
3740 },
3741};
3742
3743void fio_keywords_init(void)
3744{
3745 unsigned long long mb_memory;
3746 char buf[128];
3747 long l;
3748
3749 sprintf(buf, "%lu", (unsigned long) page_size);
3750 fio_keywords[0].replace = strdup(buf);
3751
3752 mb_memory = os_phys_mem() / (1024 * 1024);
3753 sprintf(buf, "%llu", mb_memory);
3754 fio_keywords[1].replace = strdup(buf);
3755
3756 l = cpus_online();
3757 sprintf(buf, "%lu", l);
3758 fio_keywords[2].replace = strdup(buf);
3759}
3760
3761#define BC_APP "bc"
3762
3763static char *bc_calc(char *str)
3764{
3765 char buf[128], *tmp;
3766 FILE *f;
3767 int ret;
3768
3769 /*
3770 * No math, just return string
3771 */
3772 if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
3773 !strchr(str, '/')) || strchr(str, '\''))
3774 return str;
3775
3776 /*
3777 * Split option from value, we only need to calculate the value
3778 */
3779 tmp = strchr(str, '=');
3780 if (!tmp)
3781 return str;
3782
3783 tmp++;
3784
3785 /*
3786 * Prevent buffer overflows; such a case isn't reasonable anyway
3787 */
3788 if (strlen(str) >= 128 || strlen(tmp) > 100)
3789 return str;
3790
3791 sprintf(buf, "which %s > /dev/null", BC_APP);
3792 if (system(buf)) {
3793 log_err("fio: bc is needed for performing math\n");
3794 return NULL;
3795 }
3796
3797 sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
3798 f = popen(buf, "r");
3799 if (!f)
3800 return NULL;
3801
3802 ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
3803 if (ret <= 0) {
3804 pclose(f);
3805 return NULL;
3806 }
3807
3808 pclose(f);
3809 buf[(tmp - str) + ret - 1] = '\0';
3810 memcpy(buf, str, tmp - str);
3811 free(str);
3812 return strdup(buf);
3813}
3814
3815/*
3816 * Return a copy of the input string with substrings of the form ${VARNAME}
3817 * substituted with the value of the environment variable VARNAME. The
3818 * substitution always occurs, even if VARNAME is empty or the corresponding
3819 * environment variable undefined.
3820 */
3821static char *option_dup_subs(const char *opt)
3822{
3823 char out[OPT_LEN_MAX+1];
3824 char in[OPT_LEN_MAX+1];
3825 char *outptr = out;
3826 char *inptr = in;
3827 char *ch1, *ch2, *env;
3828 ssize_t nchr = OPT_LEN_MAX;
3829 size_t envlen;
3830
3831 if (strlen(opt) + 1 > OPT_LEN_MAX) {
3832 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
3833 return NULL;
3834 }
3835
3836 in[OPT_LEN_MAX] = '\0';
3837 strncpy(in, opt, OPT_LEN_MAX);
3838
3839 while (*inptr && nchr > 0) {
3840 if (inptr[0] == '$' && inptr[1] == '{') {
3841 ch2 = strchr(inptr, '}');
3842 if (ch2 && inptr+1 < ch2) {
3843 ch1 = inptr+2;
3844 inptr = ch2+1;
3845 *ch2 = '\0';
3846
3847 env = getenv(ch1);
3848 if (env) {
3849 envlen = strlen(env);
3850 if (envlen <= nchr) {
3851 memcpy(outptr, env, envlen);
3852 outptr += envlen;
3853 nchr -= envlen;
3854 }
3855 }
3856
3857 continue;
3858 }
3859 }
3860
3861 *outptr++ = *inptr++;
3862 --nchr;
3863 }
3864
3865 *outptr = '\0';
3866 return strdup(out);
3867}
3868
3869/*
3870 * Look for reserved variable names and replace them with real values
3871 */
3872static char *fio_keyword_replace(char *opt)
3873{
3874 char *s;
3875 int i;
3876 int docalc = 0;
3877
3878 for (i = 0; fio_keywords[i].word != NULL; i++) {
3879 struct fio_keyword *kw = &fio_keywords[i];
3880
3881 while ((s = strstr(opt, kw->word)) != NULL) {
3882 char *new = malloc(strlen(opt) + 1);
3883 char *o_org = opt;
3884 int olen = s - opt;
3885 int len;
3886
3887 /*
3888 * Copy part of the string before the keyword and
3889 * sprintf() the replacement after it.
3890 */
3891 memcpy(new, opt, olen);
3892 len = sprintf(new + olen, "%s", kw->replace);
3893
3894 /*
3895 * If there's more in the original string, copy that
3896 * in too
3897 */
3898 opt += strlen(kw->word) + olen;
3899 if (strlen(opt))
3900 memcpy(new + olen + len, opt, opt - o_org - 1);
3901
3902 /*
3903 * replace opt and free the old opt
3904 */
3905 opt = new;
3906 free(o_org);
3907
3908 docalc = 1;
3909 }
3910 }
3911
3912 /*
3913 * Check for potential math and invoke bc, if possible
3914 */
3915 if (docalc)
3916 opt = bc_calc(opt);
3917
3918 return opt;
3919}
3920
3921static char **dup_and_sub_options(char **opts, int num_opts)
3922{
3923 int i;
3924 char **opts_copy = malloc(num_opts * sizeof(*opts));
3925 for (i = 0; i < num_opts; i++) {
3926 opts_copy[i] = option_dup_subs(opts[i]);
3927 if (!opts_copy[i])
3928 continue;
3929 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
3930 }
3931 return opts_copy;
3932}
3933
3934static void show_closest_option(const char *opt)
3935{
3936 int best_option, best_distance;
3937 int i, distance;
3938 char *name;
3939
3940 if (!strlen(opt))
3941 return;
3942
3943 name = strdup(opt);
3944 i = 0;
3945 while (name[i] != '\0' && name[i] != '=')
3946 i++;
3947 name[i] = '\0';
3948
3949 best_option = -1;
3950 best_distance = INT_MAX;
3951 i = 0;
3952 while (fio_options[i].name) {
3953 distance = string_distance(name, fio_options[i].name);
3954 if (distance < best_distance) {
3955 best_distance = distance;
3956 best_option = i;
3957 }
3958 i++;
3959 }
3960
3961 if (best_option != -1)
3962 log_err("Did you mean %s?\n", fio_options[best_option].name);
3963
3964 free(name);
3965}
3966
3967int fio_options_parse(struct thread_data *td, char **opts, int num_opts,
3968 int dump_cmdline)
3969{
3970 int i, ret, unknown;
3971 char **opts_copy;
3972
3973 sort_options(opts, fio_options, num_opts);
3974 opts_copy = dup_and_sub_options(opts, num_opts);
3975
3976 for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
3977 struct fio_option *o;
3978 int newret = parse_option(opts_copy[i], opts[i], fio_options,
3979 &o, td, dump_cmdline);
3980
3981 if (!newret && o)
3982 fio_option_mark_set(&td->o, o);
3983
3984 if (opts_copy[i]) {
3985 if (newret && !o) {
3986 unknown++;
3987 continue;
3988 }
3989 free(opts_copy[i]);
3990 opts_copy[i] = NULL;
3991 }
3992
3993 ret |= newret;
3994 }
3995
3996 if (unknown) {
3997 ret |= ioengine_load(td);
3998 if (td->eo) {
3999 sort_options(opts_copy, td->io_ops->options, num_opts);
4000 opts = opts_copy;
4001 }
4002 for (i = 0; i < num_opts; i++) {
4003 struct fio_option *o = NULL;
4004 int newret = 1;
4005
4006 if (!opts_copy[i])
4007 continue;
4008
4009 if (td->eo)
4010 newret = parse_option(opts_copy[i], opts[i],
4011 td->io_ops->options, &o,
4012 td->eo, dump_cmdline);
4013
4014 ret |= newret;
4015 if (!o) {
4016 log_err("Bad option <%s>\n", opts[i]);
4017 show_closest_option(opts[i]);
4018 }
4019 free(opts_copy[i]);
4020 opts_copy[i] = NULL;
4021 }
4022 }
4023
4024 free(opts_copy);
4025 return ret;
4026}
4027
4028int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
4029{
4030 int ret;
4031
4032 ret = parse_cmd_option(opt, val, fio_options, td);
4033 if (!ret) {
4034 struct fio_option *o;
4035
4036 o = find_option(fio_options, opt);
4037 if (o)
4038 fio_option_mark_set(&td->o, o);
4039 }
4040
4041 return ret;
4042}
4043
4044int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
4045 char *val)
4046{
4047 return parse_cmd_option(opt, val, td->io_ops->options, td->eo);
4048}
4049
4050void fio_fill_default_options(struct thread_data *td)
4051{
4052 td->o.magic = OPT_MAGIC;
4053 fill_default_options(td, fio_options);
4054}
4055
4056int fio_show_option_help(const char *opt)
4057{
4058 return show_cmd_help(fio_options, opt);
4059}
4060
4061void options_mem_dupe(void *data, struct fio_option *options)
4062{
4063 struct fio_option *o;
4064 char **ptr;
4065
4066 for (o = &options[0]; o->name; o++) {
4067 if (o->type != FIO_OPT_STR_STORE)
4068 continue;
4069
4070 ptr = td_var(data, o, o->off1);
4071 if (*ptr)
4072 *ptr = strdup(*ptr);
4073 }
4074}
4075
4076/*
4077 * dupe FIO_OPT_STR_STORE options
4078 */
4079void fio_options_mem_dupe(struct thread_data *td)
4080{
4081 options_mem_dupe(&td->o, fio_options);
4082
4083 if (td->eo && td->io_ops) {
4084 void *oldeo = td->eo;
4085
4086 td->eo = malloc(td->io_ops->option_struct_size);
4087 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
4088 options_mem_dupe(td->eo, td->io_ops->options);
4089 }
4090}
4091
4092unsigned int fio_get_kb_base(void *data)
4093{
4094 struct thread_options *o = data;
4095 unsigned int kb_base = 0;
4096
4097 /*
4098 * This is a hack... For private options, *data is not holding
4099 * a pointer to the thread_options, but to private data. This means
4100 * we can't safely dereference it, but magic is first so mem wise
4101 * it is valid. But this also means that if the job first sets
4102 * kb_base and expects that to be honored by private options,
4103 * it will be disappointed. We will return the global default
4104 * for this.
4105 */
4106 if (o && o->magic == OPT_MAGIC)
4107 kb_base = o->kb_base;
4108 if (!kb_base)
4109 kb_base = 1024;
4110
4111 return kb_base;
4112}
4113
4114int add_option(struct fio_option *o)
4115{
4116 struct fio_option *__o;
4117 int opt_index = 0;
4118
4119 __o = fio_options;
4120 while (__o->name) {
4121 opt_index++;
4122 __o++;
4123 }
4124
4125 if (opt_index + 1 == FIO_MAX_OPTS) {
4126 log_err("fio: FIO_MAX_OPTS is too small\n");
4127 return 1;
4128 }
4129
4130 memcpy(&fio_options[opt_index], o, sizeof(*o));
4131 fio_options[opt_index + 1].name = NULL;
4132 return 0;
4133}
4134
4135void invalidate_profile_options(const char *prof_name)
4136{
4137 struct fio_option *o;
4138
4139 o = fio_options;
4140 while (o->name) {
4141 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
4142 o->type = FIO_OPT_INVALID;
4143 o->prof_name = NULL;
4144 }
4145 o++;
4146 }
4147}
4148
4149void add_opt_posval(const char *optname, const char *ival, const char *help)
4150{
4151 struct fio_option *o;
4152 unsigned int i;
4153
4154 o = find_option(fio_options, optname);
4155 if (!o)
4156 return;
4157
4158 for (i = 0; i < PARSE_MAX_VP; i++) {
4159 if (o->posval[i].ival)
4160 continue;
4161
4162 o->posval[i].ival = ival;
4163 o->posval[i].help = help;
4164 break;
4165 }
4166}
4167
4168void del_opt_posval(const char *optname, const char *ival)
4169{
4170 struct fio_option *o;
4171 unsigned int i;
4172
4173 o = find_option(fio_options, optname);
4174 if (!o)
4175 return;
4176
4177 for (i = 0; i < PARSE_MAX_VP; i++) {
4178 if (!o->posval[i].ival)
4179 continue;
4180 if (strcmp(o->posval[i].ival, ival))
4181 continue;
4182
4183 o->posval[i].ival = NULL;
4184 o->posval[i].help = NULL;
4185 }
4186}
4187
4188void fio_options_free(struct thread_data *td)
4189{
4190 options_free(fio_options, td);
4191 if (td->eo && td->io_ops && td->io_ops->options) {
4192 options_free(td->io_ops->options, td->eo);
4193 free(td->eo);
4194 td->eo = NULL;
4195 }
4196}
4197
4198struct fio_option *fio_option_find(const char *name)
4199{
4200 return find_option(fio_options, name);
4201}
4202
4203int __fio_option_is_set(struct thread_options *o, unsigned int off1)
4204{
4205 unsigned int opt_off, index, offset;
4206 struct fio_option *opt = NULL;
4207 int i;
4208
4209 for (i = 0; fio_options[i].name; i++) {
4210 if (off1 == fio_options[i].off1) {
4211 opt = &fio_options[i];
4212 break;
4213 }
4214 }
4215
4216 if (!opt) {
4217 log_err("fio: no option found at offset %u\n", off1);
4218 return 0;
4219 }
4220
4221 opt_off = opt - &fio_options[0];
4222 index = opt_off / (8 * sizeof(uint64_t));
4223 offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
4224 return (o->set_options[index] & (1UL << offset)) != 0;
4225}
4226
4227void fio_option_mark_set(struct thread_options *o, struct fio_option *opt)
4228{
4229 unsigned int opt_off, index, offset;
4230
4231 opt_off = opt - &fio_options[0];
4232 index = opt_off / (8 * sizeof(uint64_t));
4233 offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
4234 o->set_options[index] |= 1UL << offset;
4235}
fio - Flexible IO Tester