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fio.1: update description for 'buffer_pattern' and 'verify_pattern'
[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#include <netinet/in.h>
12
13#include "fio.h"
14#include "verify.h"
15#include "parse.h"
16#include "lib/fls.h"
17#include "lib/pattern.h"
18#include "options.h"
19
20#include "crc/crc32c.h"
21
22char client_sockaddr_str[INET6_ADDRSTRLEN] = { 0 };
23
24struct pattern_fmt_desc fmt_desc[] = {
25 {
26 .fmt = "%o",
27 .len = FIELD_SIZE(struct io_u *, offset),
28 .paste = paste_blockoff
29 }
30};
31
32/*
33 * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
34 */
35static char *get_opt_postfix(const char *str)
36{
37 char *p = strstr(str, ":");
38
39 if (!p)
40 return NULL;
41
42 p++;
43 strip_blank_front(&p);
44 strip_blank_end(p);
45 return strdup(p);
46}
47
48static int bs_cmp(const void *p1, const void *p2)
49{
50 const struct bssplit *bsp1 = p1;
51 const struct bssplit *bsp2 = p2;
52
53 return bsp1->perc < bsp2->perc;
54}
55
56static int bssplit_ddir(struct thread_options *o, int ddir, char *str)
57{
58 struct bssplit *bssplit;
59 unsigned int i, perc, perc_missing;
60 unsigned int max_bs, min_bs;
61 long long val;
62 char *fname;
63
64 o->bssplit_nr[ddir] = 4;
65 bssplit = malloc(4 * sizeof(struct bssplit));
66
67 i = 0;
68 max_bs = 0;
69 min_bs = -1;
70 while ((fname = strsep(&str, ":")) != NULL) {
71 char *perc_str;
72
73 if (!strlen(fname))
74 break;
75
76 /*
77 * grow struct buffer, if needed
78 */
79 if (i == o->bssplit_nr[ddir]) {
80 o->bssplit_nr[ddir] <<= 1;
81 bssplit = realloc(bssplit, o->bssplit_nr[ddir]
82 * sizeof(struct bssplit));
83 }
84
85 perc_str = strstr(fname, "/");
86 if (perc_str) {
87 *perc_str = '\0';
88 perc_str++;
89 perc = atoi(perc_str);
90 if (perc > 100)
91 perc = 100;
92 else if (!perc)
93 perc = -1U;
94 } else
95 perc = -1U;
96
97 if (str_to_decimal(fname, &val, 1, o, 0, 0)) {
98 log_err("fio: bssplit conversion failed\n");
99 free(bssplit);
100 return 1;
101 }
102
103 if (val > max_bs)
104 max_bs = val;
105 if (val < min_bs)
106 min_bs = val;
107
108 bssplit[i].bs = val;
109 bssplit[i].perc = perc;
110 i++;
111 }
112
113 o->bssplit_nr[ddir] = i;
114
115 /*
116 * Now check if the percentages add up, and how much is missing
117 */
118 perc = perc_missing = 0;
119 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
120 struct bssplit *bsp = &bssplit[i];
121
122 if (bsp->perc == -1U)
123 perc_missing++;
124 else
125 perc += bsp->perc;
126 }
127
128 if (perc > 100 && perc_missing > 1) {
129 log_err("fio: bssplit percentages add to more than 100%%\n");
130 free(bssplit);
131 return 1;
132 }
133
134 /*
135 * If values didn't have a percentage set, divide the remains between
136 * them.
137 */
138 if (perc_missing) {
139 if (perc_missing == 1 && o->bssplit_nr[ddir] == 1)
140 perc = 100;
141 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
142 struct bssplit *bsp = &bssplit[i];
143
144 if (bsp->perc == -1U)
145 bsp->perc = (100 - perc) / perc_missing;
146 }
147 }
148
149 o->min_bs[ddir] = min_bs;
150 o->max_bs[ddir] = max_bs;
151
152 /*
153 * now sort based on percentages, for ease of lookup
154 */
155 qsort(bssplit, o->bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
156 o->bssplit[ddir] = bssplit;
157 return 0;
158}
159
160static int str_bssplit_cb(void *data, const char *input)
161{
162 struct thread_data *td = data;
163 char *str, *p, *odir, *ddir;
164 int ret = 0;
165
166 if (parse_dryrun())
167 return 0;
168
169 p = str = strdup(input);
170
171 strip_blank_front(&str);
172 strip_blank_end(str);
173
174 odir = strchr(str, ',');
175 if (odir) {
176 ddir = strchr(odir + 1, ',');
177 if (ddir) {
178 ret = bssplit_ddir(&td->o, DDIR_TRIM, ddir + 1);
179 if (!ret)
180 *ddir = '\0';
181 } else {
182 char *op;
183
184 op = strdup(odir + 1);
185 ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
186
187 free(op);
188 }
189 if (!ret)
190 ret = bssplit_ddir(&td->o, DDIR_WRITE, odir + 1);
191 if (!ret) {
192 *odir = '\0';
193 ret = bssplit_ddir(&td->o, DDIR_READ, str);
194 }
195 } else {
196 char *op;
197
198 op = strdup(str);
199 ret = bssplit_ddir(&td->o, DDIR_WRITE, op);
200 free(op);
201
202 if (!ret) {
203 op = strdup(str);
204 ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
205 free(op);
206 }
207 ret = bssplit_ddir(&td->o, DDIR_READ, str);
208 }
209
210 free(p);
211 return ret;
212}
213
214static int str2error(char *str)
215{
216 const char *err[] = { "EPERM", "ENOENT", "ESRCH", "EINTR", "EIO",
217 "ENXIO", "E2BIG", "ENOEXEC", "EBADF",
218 "ECHILD", "EAGAIN", "ENOMEM", "EACCES",
219 "EFAULT", "ENOTBLK", "EBUSY", "EEXIST",
220 "EXDEV", "ENODEV", "ENOTDIR", "EISDIR",
221 "EINVAL", "ENFILE", "EMFILE", "ENOTTY",
222 "ETXTBSY","EFBIG", "ENOSPC", "ESPIPE",
223 "EROFS","EMLINK", "EPIPE", "EDOM", "ERANGE" };
224 int i = 0, num = sizeof(err) / sizeof(void *);
225
226 while (i < num) {
227 if (!strcmp(err[i], str))
228 return i + 1;
229 i++;
230 }
231 return 0;
232}
233
234static int ignore_error_type(struct thread_data *td, int etype, char *str)
235{
236 unsigned int i;
237 int *error;
238 char *fname;
239
240 if (etype >= ERROR_TYPE_CNT) {
241 log_err("Illegal error type\n");
242 return 1;
243 }
244
245 td->o.ignore_error_nr[etype] = 4;
246 error = malloc(4 * sizeof(struct bssplit));
247
248 i = 0;
249 while ((fname = strsep(&str, ":")) != NULL) {
250
251 if (!strlen(fname))
252 break;
253
254 /*
255 * grow struct buffer, if needed
256 */
257 if (i == td->o.ignore_error_nr[etype]) {
258 td->o.ignore_error_nr[etype] <<= 1;
259 error = realloc(error, td->o.ignore_error_nr[etype]
260 * sizeof(int));
261 }
262 if (fname[0] == 'E') {
263 error[i] = str2error(fname);
264 } else {
265 error[i] = atoi(fname);
266 if (error[i] < 0)
267 error[i] = -error[i];
268 }
269 if (!error[i]) {
270 log_err("Unknown error %s, please use number value \n",
271 fname);
272 free(error);
273 return 1;
274 }
275 i++;
276 }
277 if (i) {
278 td->o.continue_on_error |= 1 << etype;
279 td->o.ignore_error_nr[etype] = i;
280 td->o.ignore_error[etype] = error;
281 } else
282 free(error);
283
284 return 0;
285
286}
287
288static int str_ignore_error_cb(void *data, const char *input)
289{
290 struct thread_data *td = data;
291 char *str, *p, *n;
292 int type = 0, ret = 1;
293
294 if (parse_dryrun())
295 return 0;
296
297 p = str = strdup(input);
298
299 strip_blank_front(&str);
300 strip_blank_end(str);
301
302 while (p) {
303 n = strchr(p, ',');
304 if (n)
305 *n++ = '\0';
306 ret = ignore_error_type(td, type, p);
307 if (ret)
308 break;
309 p = n;
310 type++;
311 }
312 free(str);
313 return ret;
314}
315
316static int str_rw_cb(void *data, const char *str)
317{
318 struct thread_data *td = data;
319 struct thread_options *o = &td->o;
320 char *nr;
321
322 if (parse_dryrun())
323 return 0;
324
325 o->ddir_seq_nr = 1;
326 o->ddir_seq_add = 0;
327
328 nr = get_opt_postfix(str);
329 if (!nr)
330 return 0;
331
332 if (td_random(td))
333 o->ddir_seq_nr = atoi(nr);
334 else {
335 long long val;
336
337 if (str_to_decimal(nr, &val, 1, o, 0, 0)) {
338 log_err("fio: rw postfix parsing failed\n");
339 free(nr);
340 return 1;
341 }
342
343 o->ddir_seq_add = val;
344 }
345
346 free(nr);
347 return 0;
348}
349
350static int str_mem_cb(void *data, const char *mem)
351{
352 struct thread_data *td = data;
353
354 if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP)
355 td->o.mmapfile = get_opt_postfix(mem);
356
357 return 0;
358}
359
360static int fio_clock_source_cb(void *data, const char *str)
361{
362 struct thread_data *td = data;
363
364 fio_clock_source = td->o.clocksource;
365 fio_clock_source_set = 1;
366 fio_clock_init();
367 return 0;
368}
369
370static int str_rwmix_read_cb(void *data, unsigned long long *val)
371{
372 struct thread_data *td = data;
373
374 td->o.rwmix[DDIR_READ] = *val;
375 td->o.rwmix[DDIR_WRITE] = 100 - *val;
376 return 0;
377}
378
379static int str_rwmix_write_cb(void *data, unsigned long long *val)
380{
381 struct thread_data *td = data;
382
383 td->o.rwmix[DDIR_WRITE] = *val;
384 td->o.rwmix[DDIR_READ] = 100 - *val;
385 return 0;
386}
387
388static int str_exitall_cb(void)
389{
390 exitall_on_terminate = 1;
391 return 0;
392}
393
394#ifdef FIO_HAVE_CPU_AFFINITY
395int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu_index)
396{
397 unsigned int i, index, cpus_in_mask;
398 const long max_cpu = cpus_online();
399
400 cpus_in_mask = fio_cpu_count(mask);
401 cpu_index = cpu_index % cpus_in_mask;
402
403 index = 0;
404 for (i = 0; i < max_cpu; i++) {
405 if (!fio_cpu_isset(mask, i))
406 continue;
407
408 if (cpu_index != index)
409 fio_cpu_clear(mask, i);
410
411 index++;
412 }
413
414 return fio_cpu_count(mask);
415}
416
417static int str_cpumask_cb(void *data, unsigned long long *val)
418{
419 struct thread_data *td = data;
420 unsigned int i;
421 long max_cpu;
422 int ret;
423
424 if (parse_dryrun())
425 return 0;
426
427 ret = fio_cpuset_init(&td->o.cpumask);
428 if (ret < 0) {
429 log_err("fio: cpuset_init failed\n");
430 td_verror(td, ret, "fio_cpuset_init");
431 return 1;
432 }
433
434 max_cpu = cpus_online();
435
436 for (i = 0; i < sizeof(int) * 8; i++) {
437 if ((1 << i) & *val) {
438 if (i >= max_cpu) {
439 log_err("fio: CPU %d too large (max=%ld)\n", i,
440 max_cpu - 1);
441 return 1;
442 }
443 dprint(FD_PARSE, "set cpu allowed %d\n", i);
444 fio_cpu_set(&td->o.cpumask, i);
445 }
446 }
447
448 return 0;
449}
450
451static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
452 const char *input)
453{
454 char *cpu, *str, *p;
455 long max_cpu;
456 int ret = 0;
457
458 ret = fio_cpuset_init(mask);
459 if (ret < 0) {
460 log_err("fio: cpuset_init failed\n");
461 td_verror(td, ret, "fio_cpuset_init");
462 return 1;
463 }
464
465 p = str = strdup(input);
466
467 strip_blank_front(&str);
468 strip_blank_end(str);
469
470 max_cpu = cpus_online();
471
472 while ((cpu = strsep(&str, ",")) != NULL) {
473 char *str2, *cpu2;
474 int icpu, icpu2;
475
476 if (!strlen(cpu))
477 break;
478
479 str2 = cpu;
480 icpu2 = -1;
481 while ((cpu2 = strsep(&str2, "-")) != NULL) {
482 if (!strlen(cpu2))
483 break;
484
485 icpu2 = atoi(cpu2);
486 }
487
488 icpu = atoi(cpu);
489 if (icpu2 == -1)
490 icpu2 = icpu;
491 while (icpu <= icpu2) {
492 if (icpu >= FIO_MAX_CPUS) {
493 log_err("fio: your OS only supports up to"
494 " %d CPUs\n", (int) FIO_MAX_CPUS);
495 ret = 1;
496 break;
497 }
498 if (icpu >= max_cpu) {
499 log_err("fio: CPU %d too large (max=%ld)\n",
500 icpu, max_cpu - 1);
501 ret = 1;
502 break;
503 }
504
505 dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
506 fio_cpu_set(mask, icpu);
507 icpu++;
508 }
509 if (ret)
510 break;
511 }
512
513 free(p);
514 return ret;
515}
516
517static int str_cpus_allowed_cb(void *data, const char *input)
518{
519 struct thread_data *td = data;
520
521 if (parse_dryrun())
522 return 0;
523
524 return set_cpus_allowed(td, &td->o.cpumask, input);
525}
526
527static int str_verify_cpus_allowed_cb(void *data, const char *input)
528{
529 struct thread_data *td = data;
530
531 return set_cpus_allowed(td, &td->o.verify_cpumask, input);
532}
533#endif
534
535#ifdef CONFIG_LIBNUMA
536static int str_numa_cpunodes_cb(void *data, char *input)
537{
538 struct thread_data *td = data;
539 struct bitmask *verify_bitmask;
540
541 if (parse_dryrun())
542 return 0;
543
544 /* numa_parse_nodestring() parses a character string list
545 * of nodes into a bit mask. The bit mask is allocated by
546 * numa_allocate_nodemask(), so it should be freed by
547 * numa_free_nodemask().
548 */
549 verify_bitmask = numa_parse_nodestring(input);
550 if (verify_bitmask == NULL) {
551 log_err("fio: numa_parse_nodestring failed\n");
552 td_verror(td, 1, "str_numa_cpunodes_cb");
553 return 1;
554 }
555 numa_free_nodemask(verify_bitmask);
556
557 td->o.numa_cpunodes = strdup(input);
558 return 0;
559}
560
561static int str_numa_mpol_cb(void *data, char *input)
562{
563 struct thread_data *td = data;
564 const char * const policy_types[] =
565 { "default", "prefer", "bind", "interleave", "local", NULL };
566 int i;
567 char *nodelist;
568 struct bitmask *verify_bitmask;
569
570 if (parse_dryrun())
571 return 0;
572
573 nodelist = strchr(input, ':');
574 if (nodelist) {
575 /* NUL-terminate mode */
576 *nodelist++ = '\0';
577 }
578
579 for (i = 0; i <= MPOL_LOCAL; i++) {
580 if (!strcmp(input, policy_types[i])) {
581 td->o.numa_mem_mode = i;
582 break;
583 }
584 }
585 if (i > MPOL_LOCAL) {
586 log_err("fio: memory policy should be: default, prefer, bind, interleave, local\n");
587 goto out;
588 }
589
590 switch (td->o.numa_mem_mode) {
591 case MPOL_PREFERRED:
592 /*
593 * Insist on a nodelist of one node only
594 */
595 if (nodelist) {
596 char *rest = nodelist;
597 while (isdigit(*rest))
598 rest++;
599 if (*rest) {
600 log_err("fio: one node only for \'prefer\'\n");
601 goto out;
602 }
603 } else {
604 log_err("fio: one node is needed for \'prefer\'\n");
605 goto out;
606 }
607 break;
608 case MPOL_INTERLEAVE:
609 /*
610 * Default to online nodes with memory if no nodelist
611 */
612 if (!nodelist)
613 nodelist = strdup("all");
614 break;
615 case MPOL_LOCAL:
616 case MPOL_DEFAULT:
617 /*
618 * Don't allow a nodelist
619 */
620 if (nodelist) {
621 log_err("fio: NO nodelist for \'local\'\n");
622 goto out;
623 }
624 break;
625 case MPOL_BIND:
626 /*
627 * Insist on a nodelist
628 */
629 if (!nodelist) {
630 log_err("fio: a nodelist is needed for \'bind\'\n");
631 goto out;
632 }
633 break;
634 }
635
636
637 /* numa_parse_nodestring() parses a character string list
638 * of nodes into a bit mask. The bit mask is allocated by
639 * numa_allocate_nodemask(), so it should be freed by
640 * numa_free_nodemask().
641 */
642 switch (td->o.numa_mem_mode) {
643 case MPOL_PREFERRED:
644 td->o.numa_mem_prefer_node = atoi(nodelist);
645 break;
646 case MPOL_INTERLEAVE:
647 case MPOL_BIND:
648 verify_bitmask = numa_parse_nodestring(nodelist);
649 if (verify_bitmask == NULL) {
650 log_err("fio: numa_parse_nodestring failed\n");
651 td_verror(td, 1, "str_numa_memnodes_cb");
652 return 1;
653 }
654 td->o.numa_memnodes = strdup(nodelist);
655 numa_free_nodemask(verify_bitmask);
656
657 break;
658 case MPOL_LOCAL:
659 case MPOL_DEFAULT:
660 default:
661 break;
662 }
663
664 return 0;
665out:
666 return 1;
667}
668#endif
669
670static int str_fst_cb(void *data, const char *str)
671{
672 struct thread_data *td = data;
673 char *nr = get_opt_postfix(str);
674
675 td->file_service_nr = 1;
676 if (nr) {
677 td->file_service_nr = atoi(nr);
678 free(nr);
679 }
680
681 return 0;
682}
683
684#ifdef CONFIG_SYNC_FILE_RANGE
685static int str_sfr_cb(void *data, const char *str)
686{
687 struct thread_data *td = data;
688 char *nr = get_opt_postfix(str);
689
690 td->sync_file_range_nr = 1;
691 if (nr) {
692 td->sync_file_range_nr = atoi(nr);
693 free(nr);
694 }
695
696 return 0;
697}
698#endif
699
700static int str_random_distribution_cb(void *data, const char *str)
701{
702 struct thread_data *td = data;
703 double val;
704 char *nr;
705
706 if (parse_dryrun())
707 return 0;
708
709 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
710 val = FIO_DEF_ZIPF;
711 else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
712 val = FIO_DEF_PARETO;
713 else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
714 val = 0.0;
715 else
716 return 0;
717
718 nr = get_opt_postfix(str);
719 if (nr && !str_to_float(nr, &val, 0)) {
720 log_err("fio: random postfix parsing failed\n");
721 free(nr);
722 return 1;
723 }
724
725 free(nr);
726
727 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
728 if (val == 1.00) {
729 log_err("fio: zipf theta must different than 1.0\n");
730 return 1;
731 }
732 td->o.zipf_theta.u.f = val;
733 } else if (td->o.random_distribution == FIO_RAND_DIST_PARETO) {
734 if (val <= 0.00 || val >= 1.00) {
735 log_err("fio: pareto input out of range (0 < input < 1.0)\n");
736 return 1;
737 }
738 td->o.pareto_h.u.f = val;
739 } else {
740 if (val <= 0.00 || val >= 100.0) {
741 log_err("fio: normal deviation out of range (0 < input < 100.0)\n");
742 return 1;
743 }
744 td->o.gauss_dev.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, size_t tlen, 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 if (client_sockaddr_str[0]) {
828 len = snprintf(target, tlen, "%s/%s.", fname,
829 client_sockaddr_str);
830 } else
831 len = snprintf(target, tlen, "%s/", fname);
832
833 target[tlen - 1] = '\0';
834 free(p);
835
836 return len;
837}
838
839static int str_filename_cb(void *data, const char *input)
840{
841 struct thread_data *td = data;
842 char *fname, *str, *p;
843
844 p = str = strdup(input);
845
846 strip_blank_front(&str);
847 strip_blank_end(str);
848
849 if (!td->files_index)
850 td->o.nr_files = 0;
851
852 while ((fname = get_next_name(&str)) != NULL) {
853 if (!strlen(fname))
854 break;
855 add_file(td, fname, 0, 1);
856 }
857
858 free(p);
859 return 0;
860}
861
862static int str_directory_cb(void *data, const char fio_unused *unused)
863{
864 struct thread_data *td = data;
865 struct stat sb;
866 char *dirname, *str, *p;
867 int ret = 0;
868
869 if (parse_dryrun())
870 return 0;
871
872 p = str = strdup(td->o.directory);
873 while ((dirname = get_next_name(&str)) != NULL) {
874 if (lstat(dirname, &sb) < 0) {
875 ret = errno;
876
877 log_err("fio: %s is not a directory\n", dirname);
878 td_verror(td, ret, "lstat");
879 goto out;
880 }
881 if (!S_ISDIR(sb.st_mode)) {
882 log_err("fio: %s is not a directory\n", dirname);
883 ret = 1;
884 goto out;
885 }
886 }
887
888out:
889 free(p);
890 return ret;
891}
892
893static int str_opendir_cb(void *data, const char fio_unused *str)
894{
895 struct thread_data *td = data;
896
897 if (parse_dryrun())
898 return 0;
899
900 if (!td->files_index)
901 td->o.nr_files = 0;
902
903 return add_dir_files(td, td->o.opendir);
904}
905
906static int str_buffer_pattern_cb(void *data, const char *input)
907{
908 struct thread_data *td = data;
909 int ret;
910
911 /* FIXME: for now buffer pattern does not support formats */
912 ret = parse_and_fill_pattern(input, strlen(input), td->o.buffer_pattern,
913 MAX_PATTERN_SIZE, NULL, 0, NULL, NULL);
914 if (ret < 0)
915 return 1;
916
917 assert(ret != 0);
918 td->o.buffer_pattern_bytes = ret;
919 if (!td->o.compress_percentage)
920 td->o.refill_buffers = 0;
921 td->o.scramble_buffers = 0;
922 td->o.zero_buffers = 0;
923
924 return 0;
925}
926
927static int str_buffer_compress_cb(void *data, unsigned long long *il)
928{
929 struct thread_data *td = data;
930
931 td->flags |= TD_F_COMPRESS;
932 td->o.compress_percentage = *il;
933 return 0;
934}
935
936static int str_dedupe_cb(void *data, unsigned long long *il)
937{
938 struct thread_data *td = data;
939
940 td->flags |= TD_F_COMPRESS;
941 td->o.dedupe_percentage = *il;
942 td->o.refill_buffers = 1;
943 return 0;
944}
945
946static int str_verify_pattern_cb(void *data, const char *input)
947{
948 struct thread_data *td = data;
949 int ret;
950
951 td->o.verify_fmt_sz = ARRAY_SIZE(td->o.verify_fmt);
952 ret = parse_and_fill_pattern(input, strlen(input), td->o.verify_pattern,
953 MAX_PATTERN_SIZE, fmt_desc, sizeof(fmt_desc),
954 td->o.verify_fmt, &td->o.verify_fmt_sz);
955 if (ret < 0)
956 return 1;
957
958 assert(ret != 0);
959 td->o.verify_pattern_bytes = ret;
960 /*
961 * VERIFY_META could already be set
962 */
963 if (!fio_option_is_set(&td->o, verify))
964 td->o.verify = VERIFY_PATTERN;
965
966 return 0;
967}
968
969static int str_gtod_reduce_cb(void *data, int *il)
970{
971 struct thread_data *td = data;
972 int val = *il;
973
974 td->o.disable_lat = !!val;
975 td->o.disable_clat = !!val;
976 td->o.disable_slat = !!val;
977 td->o.disable_bw = !!val;
978 td->o.clat_percentiles = !val;
979 if (val)
980 td->tv_cache_mask = 63;
981
982 return 0;
983}
984
985static int str_size_cb(void *data, unsigned long long *__val)
986{
987 struct thread_data *td = data;
988 unsigned long long v = *__val;
989
990 if (parse_is_percent(v)) {
991 td->o.size = 0;
992 td->o.size_percent = -1ULL - v;
993 } else
994 td->o.size = v;
995
996 return 0;
997}
998
999static int rw_verify(struct fio_option *o, void *data)
1000{
1001 struct thread_data *td = data;
1002
1003 if (read_only && td_write(td)) {
1004 log_err("fio: job <%s> has write bit set, but fio is in"
1005 " read-only mode\n", td->o.name);
1006 return 1;
1007 }
1008
1009 return 0;
1010}
1011
1012static int gtod_cpu_verify(struct fio_option *o, void *data)
1013{
1014#ifndef FIO_HAVE_CPU_AFFINITY
1015 struct thread_data *td = data;
1016
1017 if (td->o.gtod_cpu) {
1018 log_err("fio: platform must support CPU affinity for"
1019 "gettimeofday() offloading\n");
1020 return 1;
1021 }
1022#endif
1023
1024 return 0;
1025}
1026
1027/*
1028 * Option grouping
1029 */
1030static struct opt_group fio_opt_groups[] = {
1031 {
1032 .name = "General",
1033 .mask = FIO_OPT_C_GENERAL,
1034 },
1035 {
1036 .name = "I/O",
1037 .mask = FIO_OPT_C_IO,
1038 },
1039 {
1040 .name = "File",
1041 .mask = FIO_OPT_C_FILE,
1042 },
1043 {
1044 .name = "Statistics",
1045 .mask = FIO_OPT_C_STAT,
1046 },
1047 {
1048 .name = "Logging",
1049 .mask = FIO_OPT_C_LOG,
1050 },
1051 {
1052 .name = "Profiles",
1053 .mask = FIO_OPT_C_PROFILE,
1054 },
1055 {
1056 .name = NULL,
1057 },
1058};
1059
1060static struct opt_group *__opt_group_from_mask(struct opt_group *ogs, unsigned int *mask,
1061 unsigned int inv_mask)
1062{
1063 struct opt_group *og;
1064 int i;
1065
1066 if (*mask == inv_mask || !*mask)
1067 return NULL;
1068
1069 for (i = 0; ogs[i].name; i++) {
1070 og = &ogs[i];
1071
1072 if (*mask & og->mask) {
1073 *mask &= ~(og->mask);
1074 return og;
1075 }
1076 }
1077
1078 return NULL;
1079}
1080
1081struct opt_group *opt_group_from_mask(unsigned int *mask)
1082{
1083 return __opt_group_from_mask(fio_opt_groups, mask, FIO_OPT_C_INVALID);
1084}
1085
1086static struct opt_group fio_opt_cat_groups[] = {
1087 {
1088 .name = "Latency profiling",
1089 .mask = FIO_OPT_G_LATPROF,
1090 },
1091 {
1092 .name = "Rate",
1093 .mask = FIO_OPT_G_RATE,
1094 },
1095 {
1096 .name = "Zone",
1097 .mask = FIO_OPT_G_ZONE,
1098 },
1099 {
1100 .name = "Read/write mix",
1101 .mask = FIO_OPT_G_RWMIX,
1102 },
1103 {
1104 .name = "Verify",
1105 .mask = FIO_OPT_G_VERIFY,
1106 },
1107 {
1108 .name = "Trim",
1109 .mask = FIO_OPT_G_TRIM,
1110 },
1111 {
1112 .name = "I/O Logging",
1113 .mask = FIO_OPT_G_IOLOG,
1114 },
1115 {
1116 .name = "I/O Depth",
1117 .mask = FIO_OPT_G_IO_DEPTH,
1118 },
1119 {
1120 .name = "I/O Flow",
1121 .mask = FIO_OPT_G_IO_FLOW,
1122 },
1123 {
1124 .name = "Description",
1125 .mask = FIO_OPT_G_DESC,
1126 },
1127 {
1128 .name = "Filename",
1129 .mask = FIO_OPT_G_FILENAME,
1130 },
1131 {
1132 .name = "General I/O",
1133 .mask = FIO_OPT_G_IO_BASIC,
1134 },
1135 {
1136 .name = "Cgroups",
1137 .mask = FIO_OPT_G_CGROUP,
1138 },
1139 {
1140 .name = "Runtime",
1141 .mask = FIO_OPT_G_RUNTIME,
1142 },
1143 {
1144 .name = "Process",
1145 .mask = FIO_OPT_G_PROCESS,
1146 },
1147 {
1148 .name = "Job credentials / priority",
1149 .mask = FIO_OPT_G_CRED,
1150 },
1151 {
1152 .name = "Clock settings",
1153 .mask = FIO_OPT_G_CLOCK,
1154 },
1155 {
1156 .name = "I/O Type",
1157 .mask = FIO_OPT_G_IO_TYPE,
1158 },
1159 {
1160 .name = "I/O Thinktime",
1161 .mask = FIO_OPT_G_THINKTIME,
1162 },
1163 {
1164 .name = "Randomizations",
1165 .mask = FIO_OPT_G_RANDOM,
1166 },
1167 {
1168 .name = "I/O buffers",
1169 .mask = FIO_OPT_G_IO_BUF,
1170 },
1171 {
1172 .name = "Tiobench profile",
1173 .mask = FIO_OPT_G_TIOBENCH,
1174 },
1175 {
1176 .name = "MTD",
1177 .mask = FIO_OPT_G_MTD,
1178 },
1179
1180 {
1181 .name = NULL,
1182 }
1183};
1184
1185struct opt_group *opt_group_cat_from_mask(unsigned int *mask)
1186{
1187 return __opt_group_from_mask(fio_opt_cat_groups, mask, FIO_OPT_G_INVALID);
1188}
1189
1190/*
1191 * Map of job/command line options
1192 */
1193struct fio_option fio_options[FIO_MAX_OPTS] = {
1194 {
1195 .name = "description",
1196 .lname = "Description of job",
1197 .type = FIO_OPT_STR_STORE,
1198 .off1 = td_var_offset(description),
1199 .help = "Text job description",
1200 .category = FIO_OPT_C_GENERAL,
1201 .group = FIO_OPT_G_DESC,
1202 },
1203 {
1204 .name = "name",
1205 .lname = "Job name",
1206 .type = FIO_OPT_STR_STORE,
1207 .off1 = td_var_offset(name),
1208 .help = "Name of this job",
1209 .category = FIO_OPT_C_GENERAL,
1210 .group = FIO_OPT_G_DESC,
1211 },
1212 {
1213 .name = "filename",
1214 .lname = "Filename(s)",
1215 .type = FIO_OPT_STR_STORE,
1216 .off1 = td_var_offset(filename),
1217 .cb = str_filename_cb,
1218 .prio = -1, /* must come after "directory" */
1219 .help = "File(s) to use for the workload",
1220 .category = FIO_OPT_C_FILE,
1221 .group = FIO_OPT_G_FILENAME,
1222 },
1223 {
1224 .name = "directory",
1225 .lname = "Directory",
1226 .type = FIO_OPT_STR_STORE,
1227 .off1 = td_var_offset(directory),
1228 .cb = str_directory_cb,
1229 .help = "Directory to store files in",
1230 .category = FIO_OPT_C_FILE,
1231 .group = FIO_OPT_G_FILENAME,
1232 },
1233 {
1234 .name = "filename_format",
1235 .type = FIO_OPT_STR_STORE,
1236 .off1 = td_var_offset(filename_format),
1237 .prio = -1, /* must come after "directory" */
1238 .help = "Override default $jobname.$jobnum.$filenum naming",
1239 .def = "$jobname.$jobnum.$filenum",
1240 .category = FIO_OPT_C_FILE,
1241 .group = FIO_OPT_G_FILENAME,
1242 },
1243 {
1244 .name = "lockfile",
1245 .lname = "Lockfile",
1246 .type = FIO_OPT_STR,
1247 .off1 = td_var_offset(file_lock_mode),
1248 .help = "Lock file when doing IO to it",
1249 .prio = 1,
1250 .parent = "filename",
1251 .hide = 0,
1252 .def = "none",
1253 .category = FIO_OPT_C_FILE,
1254 .group = FIO_OPT_G_FILENAME,
1255 .posval = {
1256 { .ival = "none",
1257 .oval = FILE_LOCK_NONE,
1258 .help = "No file locking",
1259 },
1260 { .ival = "exclusive",
1261 .oval = FILE_LOCK_EXCLUSIVE,
1262 .help = "Exclusive file lock",
1263 },
1264 {
1265 .ival = "readwrite",
1266 .oval = FILE_LOCK_READWRITE,
1267 .help = "Read vs write lock",
1268 },
1269 },
1270 },
1271 {
1272 .name = "opendir",
1273 .lname = "Open directory",
1274 .type = FIO_OPT_STR_STORE,
1275 .off1 = td_var_offset(opendir),
1276 .cb = str_opendir_cb,
1277 .help = "Recursively add files from this directory and down",
1278 .category = FIO_OPT_C_FILE,
1279 .group = FIO_OPT_G_FILENAME,
1280 },
1281 {
1282 .name = "rw",
1283 .lname = "Read/write",
1284 .alias = "readwrite",
1285 .type = FIO_OPT_STR,
1286 .cb = str_rw_cb,
1287 .off1 = td_var_offset(td_ddir),
1288 .help = "IO direction",
1289 .def = "read",
1290 .verify = rw_verify,
1291 .category = FIO_OPT_C_IO,
1292 .group = FIO_OPT_G_IO_BASIC,
1293 .posval = {
1294 { .ival = "read",
1295 .oval = TD_DDIR_READ,
1296 .help = "Sequential read",
1297 },
1298 { .ival = "write",
1299 .oval = TD_DDIR_WRITE,
1300 .help = "Sequential write",
1301 },
1302 { .ival = "trim",
1303 .oval = TD_DDIR_TRIM,
1304 .help = "Sequential trim",
1305 },
1306 { .ival = "randread",
1307 .oval = TD_DDIR_RANDREAD,
1308 .help = "Random read",
1309 },
1310 { .ival = "randwrite",
1311 .oval = TD_DDIR_RANDWRITE,
1312 .help = "Random write",
1313 },
1314 { .ival = "randtrim",
1315 .oval = TD_DDIR_RANDTRIM,
1316 .help = "Random trim",
1317 },
1318 { .ival = "rw",
1319 .oval = TD_DDIR_RW,
1320 .help = "Sequential read and write mix",
1321 },
1322 { .ival = "readwrite",
1323 .oval = TD_DDIR_RW,
1324 .help = "Sequential read and write mix",
1325 },
1326 { .ival = "randrw",
1327 .oval = TD_DDIR_RANDRW,
1328 .help = "Random read and write mix"
1329 },
1330 { .ival = "trimwrite",
1331 .oval = TD_DDIR_TRIMWRITE,
1332 .help = "Trim and write mix, trims preceding writes"
1333 },
1334 },
1335 },
1336 {
1337 .name = "rw_sequencer",
1338 .lname = "RW Sequencer",
1339 .type = FIO_OPT_STR,
1340 .off1 = td_var_offset(rw_seq),
1341 .help = "IO offset generator modifier",
1342 .def = "sequential",
1343 .category = FIO_OPT_C_IO,
1344 .group = FIO_OPT_G_IO_BASIC,
1345 .posval = {
1346 { .ival = "sequential",
1347 .oval = RW_SEQ_SEQ,
1348 .help = "Generate sequential offsets",
1349 },
1350 { .ival = "identical",
1351 .oval = RW_SEQ_IDENT,
1352 .help = "Generate identical offsets",
1353 },
1354 },
1355 },
1356
1357 {
1358 .name = "ioengine",
1359 .lname = "IO Engine",
1360 .type = FIO_OPT_STR_STORE,
1361 .off1 = td_var_offset(ioengine),
1362 .help = "IO engine to use",
1363 .def = FIO_PREFERRED_ENGINE,
1364 .category = FIO_OPT_C_IO,
1365 .group = FIO_OPT_G_IO_BASIC,
1366 .posval = {
1367 { .ival = "sync",
1368 .help = "Use read/write",
1369 },
1370 { .ival = "psync",
1371 .help = "Use pread/pwrite",
1372 },
1373 { .ival = "vsync",
1374 .help = "Use readv/writev",
1375 },
1376#ifdef CONFIG_PWRITEV
1377 { .ival = "pvsync",
1378 .help = "Use preadv/pwritev",
1379 },
1380#endif
1381#ifdef CONFIG_LIBAIO
1382 { .ival = "libaio",
1383 .help = "Linux native asynchronous IO",
1384 },
1385#endif
1386#ifdef CONFIG_POSIXAIO
1387 { .ival = "posixaio",
1388 .help = "POSIX asynchronous IO",
1389 },
1390#endif
1391#ifdef CONFIG_SOLARISAIO
1392 { .ival = "solarisaio",
1393 .help = "Solaris native asynchronous IO",
1394 },
1395#endif
1396#ifdef CONFIG_WINDOWSAIO
1397 { .ival = "windowsaio",
1398 .help = "Windows native asynchronous IO"
1399 },
1400#endif
1401#ifdef CONFIG_RBD
1402 { .ival = "rbd",
1403 .help = "Rados Block Device asynchronous IO"
1404 },
1405#endif
1406 { .ival = "mmap",
1407 .help = "Memory mapped IO"
1408 },
1409#ifdef CONFIG_LINUX_SPLICE
1410 { .ival = "splice",
1411 .help = "splice/vmsplice based IO",
1412 },
1413 { .ival = "netsplice",
1414 .help = "splice/vmsplice to/from the network",
1415 },
1416#endif
1417#ifdef FIO_HAVE_SGIO
1418 { .ival = "sg",
1419 .help = "SCSI generic v3 IO",
1420 },
1421#endif
1422 { .ival = "null",
1423 .help = "Testing engine (no data transfer)",
1424 },
1425 { .ival = "net",
1426 .help = "Network IO",
1427 },
1428 { .ival = "cpuio",
1429 .help = "CPU cycle burner engine",
1430 },
1431#ifdef CONFIG_GUASI
1432 { .ival = "guasi",
1433 .help = "GUASI IO engine",
1434 },
1435#endif
1436#ifdef FIO_HAVE_BINJECT
1437 { .ival = "binject",
1438 .help = "binject direct inject block engine",
1439 },
1440#endif
1441#ifdef CONFIG_RDMA
1442 { .ival = "rdma",
1443 .help = "RDMA IO engine",
1444 },
1445#endif
1446#ifdef CONFIG_FUSION_AW
1447 { .ival = "fusion-aw-sync",
1448 .help = "Fusion-io atomic write engine",
1449 },
1450#endif
1451#ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
1452 { .ival = "e4defrag",
1453 .help = "ext4 defrag engine",
1454 },
1455#endif
1456#ifdef CONFIG_LINUX_FALLOCATE
1457 { .ival = "falloc",
1458 .help = "fallocate() file based engine",
1459 },
1460#endif
1461#ifdef CONFIG_GFAPI
1462 { .ival = "gfapi",
1463 .help = "Glusterfs libgfapi(sync) based engine"
1464 },
1465 { .ival = "gfapi_async",
1466 .help = "Glusterfs libgfapi(async) based engine"
1467 },
1468#endif
1469#ifdef CONFIG_LIBHDFS
1470 { .ival = "libhdfs",
1471 .help = "Hadoop Distributed Filesystem (HDFS) engine"
1472 },
1473#endif
1474 { .ival = "external",
1475 .help = "Load external engine (append name)",
1476 },
1477 },
1478 },
1479 {
1480 .name = "iodepth",
1481 .lname = "IO Depth",
1482 .type = FIO_OPT_INT,
1483 .off1 = td_var_offset(iodepth),
1484 .help = "Number of IO buffers to keep in flight",
1485 .minval = 1,
1486 .interval = 1,
1487 .def = "1",
1488 .category = FIO_OPT_C_IO,
1489 .group = FIO_OPT_G_IO_BASIC,
1490 },
1491 {
1492 .name = "iodepth_batch",
1493 .lname = "IO Depth batch",
1494 .alias = "iodepth_batch_submit",
1495 .type = FIO_OPT_INT,
1496 .off1 = td_var_offset(iodepth_batch),
1497 .help = "Number of IO buffers to submit in one go",
1498 .parent = "iodepth",
1499 .hide = 1,
1500 .minval = 1,
1501 .interval = 1,
1502 .def = "1",
1503 .category = FIO_OPT_C_IO,
1504 .group = FIO_OPT_G_IO_BASIC,
1505 },
1506 {
1507 .name = "iodepth_batch_complete",
1508 .lname = "IO Depth batch complete",
1509 .type = FIO_OPT_INT,
1510 .off1 = td_var_offset(iodepth_batch_complete),
1511 .help = "Number of IO buffers to retrieve in one go",
1512 .parent = "iodepth",
1513 .hide = 1,
1514 .minval = 0,
1515 .interval = 1,
1516 .def = "1",
1517 .category = FIO_OPT_C_IO,
1518 .group = FIO_OPT_G_IO_BASIC,
1519 },
1520 {
1521 .name = "iodepth_low",
1522 .lname = "IO Depth batch low",
1523 .type = FIO_OPT_INT,
1524 .off1 = td_var_offset(iodepth_low),
1525 .help = "Low water mark for queuing depth",
1526 .parent = "iodepth",
1527 .hide = 1,
1528 .interval = 1,
1529 .category = FIO_OPT_C_IO,
1530 .group = FIO_OPT_G_IO_BASIC,
1531 },
1532 {
1533 .name = "io_submit_mode",
1534 .lname = "IO submit mode",
1535 .type = FIO_OPT_STR,
1536 .off1 = td_var_offset(io_submit_mode),
1537 .help = "How IO submissions and completions are done",
1538 .def = "inline",
1539 .category = FIO_OPT_C_IO,
1540 .group = FIO_OPT_G_IO_BASIC,
1541 .posval = {
1542 { .ival = "inline",
1543 .oval = IO_MODE_INLINE,
1544 .help = "Submit and complete IO inline",
1545 },
1546 { .ival = "offload",
1547 .oval = IO_MODE_OFFLOAD,
1548 .help = "Offload submit and complete to threads",
1549 },
1550 },
1551 },
1552 {
1553 .name = "size",
1554 .lname = "Size",
1555 .type = FIO_OPT_STR_VAL,
1556 .cb = str_size_cb,
1557 .off1 = td_var_offset(size),
1558 .help = "Total size of device or files",
1559 .interval = 1024 * 1024,
1560 .category = FIO_OPT_C_IO,
1561 .group = FIO_OPT_G_INVALID,
1562 },
1563 {
1564 .name = "io_size",
1565 .alias = "io_limit",
1566 .lname = "IO Size",
1567 .type = FIO_OPT_STR_VAL,
1568 .off1 = td_var_offset(io_limit),
1569 .interval = 1024 * 1024,
1570 .category = FIO_OPT_C_IO,
1571 .group = FIO_OPT_G_INVALID,
1572 },
1573 {
1574 .name = "fill_device",
1575 .lname = "Fill device",
1576 .alias = "fill_fs",
1577 .type = FIO_OPT_BOOL,
1578 .off1 = td_var_offset(fill_device),
1579 .help = "Write until an ENOSPC error occurs",
1580 .def = "0",
1581 .category = FIO_OPT_C_FILE,
1582 .group = FIO_OPT_G_INVALID,
1583 },
1584 {
1585 .name = "filesize",
1586 .lname = "File size",
1587 .type = FIO_OPT_STR_VAL,
1588 .off1 = td_var_offset(file_size_low),
1589 .off2 = td_var_offset(file_size_high),
1590 .minval = 1,
1591 .help = "Size of individual files",
1592 .interval = 1024 * 1024,
1593 .category = FIO_OPT_C_FILE,
1594 .group = FIO_OPT_G_INVALID,
1595 },
1596 {
1597 .name = "file_append",
1598 .lname = "File append",
1599 .type = FIO_OPT_BOOL,
1600 .off1 = td_var_offset(file_append),
1601 .help = "IO will start at the end of the file(s)",
1602 .def = "0",
1603 .category = FIO_OPT_C_FILE,
1604 .group = FIO_OPT_G_INVALID,
1605 },
1606 {
1607 .name = "offset",
1608 .lname = "IO offset",
1609 .alias = "fileoffset",
1610 .type = FIO_OPT_STR_VAL,
1611 .off1 = td_var_offset(start_offset),
1612 .help = "Start IO from this offset",
1613 .def = "0",
1614 .interval = 1024 * 1024,
1615 .category = FIO_OPT_C_IO,
1616 .group = FIO_OPT_G_INVALID,
1617 },
1618 {
1619 .name = "offset_increment",
1620 .lname = "IO offset increment",
1621 .type = FIO_OPT_STR_VAL,
1622 .off1 = td_var_offset(offset_increment),
1623 .help = "What is the increment from one offset to the next",
1624 .parent = "offset",
1625 .hide = 1,
1626 .def = "0",
1627 .interval = 1024 * 1024,
1628 .category = FIO_OPT_C_IO,
1629 .group = FIO_OPT_G_INVALID,
1630 },
1631 {
1632 .name = "number_ios",
1633 .lname = "Number of IOs to perform",
1634 .type = FIO_OPT_STR_VAL,
1635 .off1 = td_var_offset(number_ios),
1636 .help = "Force job completion after this number of IOs",
1637 .def = "0",
1638 .category = FIO_OPT_C_IO,
1639 .group = FIO_OPT_G_INVALID,
1640 },
1641 {
1642 .name = "bs",
1643 .lname = "Block size",
1644 .alias = "blocksize",
1645 .type = FIO_OPT_INT,
1646 .off1 = td_var_offset(bs[DDIR_READ]),
1647 .off2 = td_var_offset(bs[DDIR_WRITE]),
1648 .off3 = td_var_offset(bs[DDIR_TRIM]),
1649 .minval = 1,
1650 .help = "Block size unit",
1651 .def = "4k",
1652 .parent = "rw",
1653 .hide = 1,
1654 .interval = 512,
1655 .category = FIO_OPT_C_IO,
1656 .group = FIO_OPT_G_INVALID,
1657 },
1658 {
1659 .name = "ba",
1660 .lname = "Block size align",
1661 .alias = "blockalign",
1662 .type = FIO_OPT_INT,
1663 .off1 = td_var_offset(ba[DDIR_READ]),
1664 .off2 = td_var_offset(ba[DDIR_WRITE]),
1665 .off3 = td_var_offset(ba[DDIR_TRIM]),
1666 .minval = 1,
1667 .help = "IO block offset alignment",
1668 .parent = "rw",
1669 .hide = 1,
1670 .interval = 512,
1671 .category = FIO_OPT_C_IO,
1672 .group = FIO_OPT_G_INVALID,
1673 },
1674 {
1675 .name = "bsrange",
1676 .lname = "Block size range",
1677 .alias = "blocksize_range",
1678 .type = FIO_OPT_RANGE,
1679 .off1 = td_var_offset(min_bs[DDIR_READ]),
1680 .off2 = td_var_offset(max_bs[DDIR_READ]),
1681 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
1682 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
1683 .off5 = td_var_offset(min_bs[DDIR_TRIM]),
1684 .off6 = td_var_offset(max_bs[DDIR_TRIM]),
1685 .minval = 1,
1686 .help = "Set block size range (in more detail than bs)",
1687 .parent = "rw",
1688 .hide = 1,
1689 .interval = 4096,
1690 .category = FIO_OPT_C_IO,
1691 .group = FIO_OPT_G_INVALID,
1692 },
1693 {
1694 .name = "bssplit",
1695 .lname = "Block size split",
1696 .type = FIO_OPT_STR,
1697 .cb = str_bssplit_cb,
1698 .off1 = td_var_offset(bssplit),
1699 .help = "Set a specific mix of block sizes",
1700 .parent = "rw",
1701 .hide = 1,
1702 .category = FIO_OPT_C_IO,
1703 .group = FIO_OPT_G_INVALID,
1704 },
1705 {
1706 .name = "bs_unaligned",
1707 .lname = "Block size unaligned",
1708 .alias = "blocksize_unaligned",
1709 .type = FIO_OPT_STR_SET,
1710 .off1 = td_var_offset(bs_unaligned),
1711 .help = "Don't sector align IO buffer sizes",
1712 .parent = "rw",
1713 .hide = 1,
1714 .category = FIO_OPT_C_IO,
1715 .group = FIO_OPT_G_INVALID,
1716 },
1717 {
1718 .name = "bs_is_seq_rand",
1719 .lname = "Block size division is seq/random (not read/write)",
1720 .type = FIO_OPT_BOOL,
1721 .off1 = td_var_offset(bs_is_seq_rand),
1722 .help = "Consider any blocksize setting to be sequential,random",
1723 .def = "0",
1724 .parent = "blocksize",
1725 .category = FIO_OPT_C_IO,
1726 .group = FIO_OPT_G_INVALID,
1727 },
1728 {
1729 .name = "randrepeat",
1730 .lname = "Random repeatable",
1731 .type = FIO_OPT_BOOL,
1732 .off1 = td_var_offset(rand_repeatable),
1733 .help = "Use repeatable random IO pattern",
1734 .def = "1",
1735 .parent = "rw",
1736 .hide = 1,
1737 .category = FIO_OPT_C_IO,
1738 .group = FIO_OPT_G_RANDOM,
1739 },
1740 {
1741 .name = "randseed",
1742 .lname = "The random generator seed",
1743 .type = FIO_OPT_STR_VAL,
1744 .off1 = td_var_offset(rand_seed),
1745 .help = "Set the random generator seed value",
1746 .def = "0x89",
1747 .parent = "rw",
1748 .category = FIO_OPT_C_IO,
1749 .group = FIO_OPT_G_RANDOM,
1750 },
1751 {
1752 .name = "use_os_rand",
1753 .lname = "Use OS random",
1754 .type = FIO_OPT_DEPRECATED,
1755 .off1 = td_var_offset(dep_use_os_rand),
1756 .category = FIO_OPT_C_IO,
1757 .group = FIO_OPT_G_RANDOM,
1758 },
1759 {
1760 .name = "norandommap",
1761 .lname = "No randommap",
1762 .type = FIO_OPT_STR_SET,
1763 .off1 = td_var_offset(norandommap),
1764 .help = "Accept potential duplicate random blocks",
1765 .parent = "rw",
1766 .hide = 1,
1767 .hide_on_set = 1,
1768 .category = FIO_OPT_C_IO,
1769 .group = FIO_OPT_G_RANDOM,
1770 },
1771 {
1772 .name = "softrandommap",
1773 .lname = "Soft randommap",
1774 .type = FIO_OPT_BOOL,
1775 .off1 = td_var_offset(softrandommap),
1776 .help = "Set norandommap if randommap allocation fails",
1777 .parent = "norandommap",
1778 .hide = 1,
1779 .def = "0",
1780 .category = FIO_OPT_C_IO,
1781 .group = FIO_OPT_G_RANDOM,
1782 },
1783 {
1784 .name = "random_generator",
1785 .type = FIO_OPT_STR,
1786 .off1 = td_var_offset(random_generator),
1787 .help = "Type of random number generator to use",
1788 .def = "tausworthe",
1789 .posval = {
1790 { .ival = "tausworthe",
1791 .oval = FIO_RAND_GEN_TAUSWORTHE,
1792 .help = "Strong Tausworthe generator",
1793 },
1794 { .ival = "lfsr",
1795 .oval = FIO_RAND_GEN_LFSR,
1796 .help = "Variable length LFSR",
1797 },
1798 {
1799 .ival = "tausworthe64",
1800 .oval = FIO_RAND_GEN_TAUSWORTHE64,
1801 .help = "64-bit Tausworthe variant",
1802 },
1803 },
1804 .category = FIO_OPT_C_IO,
1805 .group = FIO_OPT_G_RANDOM,
1806 },
1807 {
1808 .name = "random_distribution",
1809 .type = FIO_OPT_STR,
1810 .off1 = td_var_offset(random_distribution),
1811 .cb = str_random_distribution_cb,
1812 .help = "Random offset distribution generator",
1813 .def = "random",
1814 .posval = {
1815 { .ival = "random",
1816 .oval = FIO_RAND_DIST_RANDOM,
1817 .help = "Completely random",
1818 },
1819 { .ival = "zipf",
1820 .oval = FIO_RAND_DIST_ZIPF,
1821 .help = "Zipf distribution",
1822 },
1823 { .ival = "pareto",
1824 .oval = FIO_RAND_DIST_PARETO,
1825 .help = "Pareto distribution",
1826 },
1827 { .ival = "normal",
1828 .oval = FIO_RAND_DIST_GAUSS,
1829 .help = "Normal (gaussian) distribution",
1830 },
1831 },
1832 .category = FIO_OPT_C_IO,
1833 .group = FIO_OPT_G_RANDOM,
1834 },
1835 {
1836 .name = "percentage_random",
1837 .lname = "Percentage Random",
1838 .type = FIO_OPT_INT,
1839 .off1 = td_var_offset(perc_rand[DDIR_READ]),
1840 .off2 = td_var_offset(perc_rand[DDIR_WRITE]),
1841 .off3 = td_var_offset(perc_rand[DDIR_TRIM]),
1842 .maxval = 100,
1843 .help = "Percentage of seq/random mix that should be random",
1844 .def = "100,100,100",
1845 .interval = 5,
1846 .inverse = "percentage_sequential",
1847 .category = FIO_OPT_C_IO,
1848 .group = FIO_OPT_G_RANDOM,
1849 },
1850 {
1851 .name = "percentage_sequential",
1852 .lname = "Percentage Sequential",
1853 .type = FIO_OPT_DEPRECATED,
1854 .category = FIO_OPT_C_IO,
1855 .group = FIO_OPT_G_RANDOM,
1856 },
1857 {
1858 .name = "allrandrepeat",
1859 .type = FIO_OPT_BOOL,
1860 .off1 = td_var_offset(allrand_repeatable),
1861 .help = "Use repeatable random numbers for everything",
1862 .def = "0",
1863 .category = FIO_OPT_C_IO,
1864 .group = FIO_OPT_G_RANDOM,
1865 },
1866 {
1867 .name = "nrfiles",
1868 .lname = "Number of files",
1869 .alias = "nr_files",
1870 .type = FIO_OPT_INT,
1871 .off1 = td_var_offset(nr_files),
1872 .help = "Split job workload between this number of files",
1873 .def = "1",
1874 .interval = 1,
1875 .category = FIO_OPT_C_FILE,
1876 .group = FIO_OPT_G_INVALID,
1877 },
1878 {
1879 .name = "openfiles",
1880 .lname = "Number of open files",
1881 .type = FIO_OPT_INT,
1882 .off1 = td_var_offset(open_files),
1883 .help = "Number of files to keep open at the same time",
1884 .category = FIO_OPT_C_FILE,
1885 .group = FIO_OPT_G_INVALID,
1886 },
1887 {
1888 .name = "file_service_type",
1889 .lname = "File service type",
1890 .type = FIO_OPT_STR,
1891 .cb = str_fst_cb,
1892 .off1 = td_var_offset(file_service_type),
1893 .help = "How to select which file to service next",
1894 .def = "roundrobin",
1895 .category = FIO_OPT_C_FILE,
1896 .group = FIO_OPT_G_INVALID,
1897 .posval = {
1898 { .ival = "random",
1899 .oval = FIO_FSERVICE_RANDOM,
1900 .help = "Choose a file at random",
1901 },
1902 { .ival = "roundrobin",
1903 .oval = FIO_FSERVICE_RR,
1904 .help = "Round robin select files",
1905 },
1906 { .ival = "sequential",
1907 .oval = FIO_FSERVICE_SEQ,
1908 .help = "Finish one file before moving to the next",
1909 },
1910 },
1911 .parent = "nrfiles",
1912 .hide = 1,
1913 },
1914#ifdef CONFIG_POSIX_FALLOCATE
1915 {
1916 .name = "fallocate",
1917 .lname = "Fallocate",
1918 .type = FIO_OPT_STR,
1919 .off1 = td_var_offset(fallocate_mode),
1920 .help = "Whether pre-allocation is performed when laying out files",
1921 .def = "posix",
1922 .category = FIO_OPT_C_FILE,
1923 .group = FIO_OPT_G_INVALID,
1924 .posval = {
1925 { .ival = "none",
1926 .oval = FIO_FALLOCATE_NONE,
1927 .help = "Do not pre-allocate space",
1928 },
1929 { .ival = "posix",
1930 .oval = FIO_FALLOCATE_POSIX,
1931 .help = "Use posix_fallocate()",
1932 },
1933#ifdef CONFIG_LINUX_FALLOCATE
1934 { .ival = "keep",
1935 .oval = FIO_FALLOCATE_KEEP_SIZE,
1936 .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
1937 },
1938#endif
1939 /* Compatibility with former boolean values */
1940 { .ival = "0",
1941 .oval = FIO_FALLOCATE_NONE,
1942 .help = "Alias for 'none'",
1943 },
1944 { .ival = "1",
1945 .oval = FIO_FALLOCATE_POSIX,
1946 .help = "Alias for 'posix'",
1947 },
1948 },
1949 },
1950#endif /* CONFIG_POSIX_FALLOCATE */
1951 {
1952 .name = "fadvise_hint",
1953 .lname = "Fadvise hint",
1954 .type = FIO_OPT_BOOL,
1955 .off1 = td_var_offset(fadvise_hint),
1956 .help = "Use fadvise() to advise the kernel on IO pattern",
1957 .def = "1",
1958 .category = FIO_OPT_C_FILE,
1959 .group = FIO_OPT_G_INVALID,
1960 },
1961#ifdef FIO_HAVE_STREAMID
1962 {
1963 .name = "fadvise_stream",
1964 .lname = "Fadvise stream",
1965 .type = FIO_OPT_INT,
1966 .off1 = td_var_offset(fadvise_stream),
1967 .help = "Use fadvise() to set stream ID",
1968 .category = FIO_OPT_C_FILE,
1969 .group = FIO_OPT_G_INVALID,
1970 },
1971#endif
1972 {
1973 .name = "fsync",
1974 .lname = "Fsync",
1975 .type = FIO_OPT_INT,
1976 .off1 = td_var_offset(fsync_blocks),
1977 .help = "Issue fsync for writes every given number of blocks",
1978 .def = "0",
1979 .interval = 1,
1980 .category = FIO_OPT_C_FILE,
1981 .group = FIO_OPT_G_INVALID,
1982 },
1983 {
1984 .name = "fdatasync",
1985 .lname = "Fdatasync",
1986 .type = FIO_OPT_INT,
1987 .off1 = td_var_offset(fdatasync_blocks),
1988 .help = "Issue fdatasync for writes every given number of blocks",
1989 .def = "0",
1990 .interval = 1,
1991 .category = FIO_OPT_C_FILE,
1992 .group = FIO_OPT_G_INVALID,
1993 },
1994 {
1995 .name = "write_barrier",
1996 .lname = "Write barrier",
1997 .type = FIO_OPT_INT,
1998 .off1 = td_var_offset(barrier_blocks),
1999 .help = "Make every Nth write a barrier write",
2000 .def = "0",
2001 .interval = 1,
2002 .category = FIO_OPT_C_IO,
2003 .group = FIO_OPT_G_INVALID,
2004 },
2005#ifdef CONFIG_SYNC_FILE_RANGE
2006 {
2007 .name = "sync_file_range",
2008 .lname = "Sync file range",
2009 .posval = {
2010 { .ival = "wait_before",
2011 .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
2012 .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
2013 .orval = 1,
2014 },
2015 { .ival = "write",
2016 .oval = SYNC_FILE_RANGE_WRITE,
2017 .help = "SYNC_FILE_RANGE_WRITE",
2018 .orval = 1,
2019 },
2020 {
2021 .ival = "wait_after",
2022 .oval = SYNC_FILE_RANGE_WAIT_AFTER,
2023 .help = "SYNC_FILE_RANGE_WAIT_AFTER",
2024 .orval = 1,
2025 },
2026 },
2027 .type = FIO_OPT_STR_MULTI,
2028 .cb = str_sfr_cb,
2029 .off1 = td_var_offset(sync_file_range),
2030 .help = "Use sync_file_range()",
2031 .category = FIO_OPT_C_FILE,
2032 .group = FIO_OPT_G_INVALID,
2033 },
2034#endif
2035 {
2036 .name = "direct",
2037 .lname = "Direct I/O",
2038 .type = FIO_OPT_BOOL,
2039 .off1 = td_var_offset(odirect),
2040 .help = "Use O_DIRECT IO (negates buffered)",
2041 .def = "0",
2042 .inverse = "buffered",
2043 .category = FIO_OPT_C_IO,
2044 .group = FIO_OPT_G_IO_TYPE,
2045 },
2046 {
2047 .name = "atomic",
2048 .lname = "Atomic I/O",
2049 .type = FIO_OPT_BOOL,
2050 .off1 = td_var_offset(oatomic),
2051 .help = "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
2052 .def = "0",
2053 .category = FIO_OPT_C_IO,
2054 .group = FIO_OPT_G_IO_TYPE,
2055 },
2056 {
2057 .name = "buffered",
2058 .lname = "Buffered I/O",
2059 .type = FIO_OPT_BOOL,
2060 .off1 = td_var_offset(odirect),
2061 .neg = 1,
2062 .help = "Use buffered IO (negates direct)",
2063 .def = "1",
2064 .inverse = "direct",
2065 .category = FIO_OPT_C_IO,
2066 .group = FIO_OPT_G_IO_TYPE,
2067 },
2068 {
2069 .name = "overwrite",
2070 .lname = "Overwrite",
2071 .type = FIO_OPT_BOOL,
2072 .off1 = td_var_offset(overwrite),
2073 .help = "When writing, set whether to overwrite current data",
2074 .def = "0",
2075 .category = FIO_OPT_C_FILE,
2076 .group = FIO_OPT_G_INVALID,
2077 },
2078 {
2079 .name = "loops",
2080 .lname = "Loops",
2081 .type = FIO_OPT_INT,
2082 .off1 = td_var_offset(loops),
2083 .help = "Number of times to run the job",
2084 .def = "1",
2085 .interval = 1,
2086 .category = FIO_OPT_C_GENERAL,
2087 .group = FIO_OPT_G_RUNTIME,
2088 },
2089 {
2090 .name = "numjobs",
2091 .lname = "Number of jobs",
2092 .type = FIO_OPT_INT,
2093 .off1 = td_var_offset(numjobs),
2094 .help = "Duplicate this job this many times",
2095 .def = "1",
2096 .interval = 1,
2097 .category = FIO_OPT_C_GENERAL,
2098 .group = FIO_OPT_G_RUNTIME,
2099 },
2100 {
2101 .name = "startdelay",
2102 .lname = "Start delay",
2103 .type = FIO_OPT_STR_VAL_TIME,
2104 .off1 = td_var_offset(start_delay),
2105 .off2 = td_var_offset(start_delay_high),
2106 .help = "Only start job when this period has passed",
2107 .def = "0",
2108 .is_seconds = 1,
2109 .is_time = 1,
2110 .category = FIO_OPT_C_GENERAL,
2111 .group = FIO_OPT_G_RUNTIME,
2112 },
2113 {
2114 .name = "runtime",
2115 .lname = "Runtime",
2116 .alias = "timeout",
2117 .type = FIO_OPT_STR_VAL_TIME,
2118 .off1 = td_var_offset(timeout),
2119 .help = "Stop workload when this amount of time has passed",
2120 .def = "0",
2121 .is_seconds = 1,
2122 .is_time = 1,
2123 .category = FIO_OPT_C_GENERAL,
2124 .group = FIO_OPT_G_RUNTIME,
2125 },
2126 {
2127 .name = "time_based",
2128 .lname = "Time based",
2129 .type = FIO_OPT_STR_SET,
2130 .off1 = td_var_offset(time_based),
2131 .help = "Keep running until runtime/timeout is met",
2132 .category = FIO_OPT_C_GENERAL,
2133 .group = FIO_OPT_G_RUNTIME,
2134 },
2135 {
2136 .name = "verify_only",
2137 .lname = "Verify only",
2138 .type = FIO_OPT_STR_SET,
2139 .off1 = td_var_offset(verify_only),
2140 .help = "Verifies previously written data is still valid",
2141 .category = FIO_OPT_C_GENERAL,
2142 .group = FIO_OPT_G_RUNTIME,
2143 },
2144 {
2145 .name = "ramp_time",
2146 .lname = "Ramp time",
2147 .type = FIO_OPT_STR_VAL_TIME,
2148 .off1 = td_var_offset(ramp_time),
2149 .help = "Ramp up time before measuring performance",
2150 .is_seconds = 1,
2151 .is_time = 1,
2152 .category = FIO_OPT_C_GENERAL,
2153 .group = FIO_OPT_G_RUNTIME,
2154 },
2155 {
2156 .name = "clocksource",
2157 .lname = "Clock source",
2158 .type = FIO_OPT_STR,
2159 .cb = fio_clock_source_cb,
2160 .off1 = td_var_offset(clocksource),
2161 .help = "What type of timing source to use",
2162 .category = FIO_OPT_C_GENERAL,
2163 .group = FIO_OPT_G_CLOCK,
2164 .posval = {
2165#ifdef CONFIG_GETTIMEOFDAY
2166 { .ival = "gettimeofday",
2167 .oval = CS_GTOD,
2168 .help = "Use gettimeofday(2) for timing",
2169 },
2170#endif
2171#ifdef CONFIG_CLOCK_GETTIME
2172 { .ival = "clock_gettime",
2173 .oval = CS_CGETTIME,
2174 .help = "Use clock_gettime(2) for timing",
2175 },
2176#endif
2177#ifdef ARCH_HAVE_CPU_CLOCK
2178 { .ival = "cpu",
2179 .oval = CS_CPUCLOCK,
2180 .help = "Use CPU private clock",
2181 },
2182#endif
2183 },
2184 },
2185 {
2186 .name = "mem",
2187 .alias = "iomem",
2188 .lname = "I/O Memory",
2189 .type = FIO_OPT_STR,
2190 .cb = str_mem_cb,
2191 .off1 = td_var_offset(mem_type),
2192 .help = "Backing type for IO buffers",
2193 .def = "malloc",
2194 .category = FIO_OPT_C_IO,
2195 .group = FIO_OPT_G_INVALID,
2196 .posval = {
2197 { .ival = "malloc",
2198 .oval = MEM_MALLOC,
2199 .help = "Use malloc(3) for IO buffers",
2200 },
2201#ifndef CONFIG_NO_SHM
2202 { .ival = "shm",
2203 .oval = MEM_SHM,
2204 .help = "Use shared memory segments for IO buffers",
2205 },
2206#ifdef FIO_HAVE_HUGETLB
2207 { .ival = "shmhuge",
2208 .oval = MEM_SHMHUGE,
2209 .help = "Like shm, but use huge pages",
2210 },
2211#endif
2212#endif
2213 { .ival = "mmap",
2214 .oval = MEM_MMAP,
2215 .help = "Use mmap(2) (file or anon) for IO buffers",
2216 },
2217#ifdef FIO_HAVE_HUGETLB
2218 { .ival = "mmaphuge",
2219 .oval = MEM_MMAPHUGE,
2220 .help = "Like mmap, but use huge pages",
2221 },
2222#endif
2223 },
2224 },
2225 {
2226 .name = "iomem_align",
2227 .alias = "mem_align",
2228 .lname = "I/O memory alignment",
2229 .type = FIO_OPT_INT,
2230 .off1 = td_var_offset(mem_align),
2231 .minval = 0,
2232 .help = "IO memory buffer offset alignment",
2233 .def = "0",
2234 .parent = "iomem",
2235 .hide = 1,
2236 .category = FIO_OPT_C_IO,
2237 .group = FIO_OPT_G_INVALID,
2238 },
2239 {
2240 .name = "verify",
2241 .lname = "Verify",
2242 .type = FIO_OPT_STR,
2243 .off1 = td_var_offset(verify),
2244 .help = "Verify data written",
2245 .def = "0",
2246 .category = FIO_OPT_C_IO,
2247 .group = FIO_OPT_G_VERIFY,
2248 .posval = {
2249 { .ival = "0",
2250 .oval = VERIFY_NONE,
2251 .help = "Don't do IO verification",
2252 },
2253 { .ival = "md5",
2254 .oval = VERIFY_MD5,
2255 .help = "Use md5 checksums for verification",
2256 },
2257 { .ival = "crc64",
2258 .oval = VERIFY_CRC64,
2259 .help = "Use crc64 checksums for verification",
2260 },
2261 { .ival = "crc32",
2262 .oval = VERIFY_CRC32,
2263 .help = "Use crc32 checksums for verification",
2264 },
2265 { .ival = "crc32c-intel",
2266 .oval = VERIFY_CRC32C,
2267 .help = "Use crc32c checksums for verification (hw assisted, if available)",
2268 },
2269 { .ival = "crc32c",
2270 .oval = VERIFY_CRC32C,
2271 .help = "Use crc32c checksums for verification (hw assisted, if available)",
2272 },
2273 { .ival = "crc16",
2274 .oval = VERIFY_CRC16,
2275 .help = "Use crc16 checksums for verification",
2276 },
2277 { .ival = "crc7",
2278 .oval = VERIFY_CRC7,
2279 .help = "Use crc7 checksums for verification",
2280 },
2281 { .ival = "sha1",
2282 .oval = VERIFY_SHA1,
2283 .help = "Use sha1 checksums for verification",
2284 },
2285 { .ival = "sha256",
2286 .oval = VERIFY_SHA256,
2287 .help = "Use sha256 checksums for verification",
2288 },
2289 { .ival = "sha512",
2290 .oval = VERIFY_SHA512,
2291 .help = "Use sha512 checksums for verification",
2292 },
2293 { .ival = "xxhash",
2294 .oval = VERIFY_XXHASH,
2295 .help = "Use xxhash checksums for verification",
2296 },
2297 { .ival = "meta",
2298 .oval = VERIFY_META,
2299 .help = "Use io information",
2300 },
2301 { .ival = "pattern",
2302 .oval = VERIFY_PATTERN_NO_HDR,
2303 .help = "Verify strict pattern",
2304 },
2305 {
2306 .ival = "null",
2307 .oval = VERIFY_NULL,
2308 .help = "Pretend to verify",
2309 },
2310 },
2311 },
2312 {
2313 .name = "do_verify",
2314 .lname = "Perform verify step",
2315 .type = FIO_OPT_BOOL,
2316 .off1 = td_var_offset(do_verify),
2317 .help = "Run verification stage after write",
2318 .def = "1",
2319 .parent = "verify",
2320 .hide = 1,
2321 .category = FIO_OPT_C_IO,
2322 .group = FIO_OPT_G_VERIFY,
2323 },
2324 {
2325 .name = "verifysort",
2326 .lname = "Verify sort",
2327 .type = FIO_OPT_BOOL,
2328 .off1 = td_var_offset(verifysort),
2329 .help = "Sort written verify blocks for read back",
2330 .def = "1",
2331 .parent = "verify",
2332 .hide = 1,
2333 .category = FIO_OPT_C_IO,
2334 .group = FIO_OPT_G_VERIFY,
2335 },
2336 {
2337 .name = "verifysort_nr",
2338 .type = FIO_OPT_INT,
2339 .off1 = td_var_offset(verifysort_nr),
2340 .help = "Pre-load and sort verify blocks for a read workload",
2341 .minval = 0,
2342 .maxval = 131072,
2343 .def = "1024",
2344 .parent = "verify",
2345 .category = FIO_OPT_C_IO,
2346 .group = FIO_OPT_G_VERIFY,
2347 },
2348 {
2349 .name = "verify_interval",
2350 .lname = "Verify interval",
2351 .type = FIO_OPT_INT,
2352 .off1 = td_var_offset(verify_interval),
2353 .minval = 2 * sizeof(struct verify_header),
2354 .help = "Store verify buffer header every N bytes",
2355 .parent = "verify",
2356 .hide = 1,
2357 .interval = 2 * sizeof(struct verify_header),
2358 .category = FIO_OPT_C_IO,
2359 .group = FIO_OPT_G_VERIFY,
2360 },
2361 {
2362 .name = "verify_offset",
2363 .lname = "Verify offset",
2364 .type = FIO_OPT_INT,
2365 .help = "Offset verify header location by N bytes",
2366 .off1 = td_var_offset(verify_offset),
2367 .minval = sizeof(struct verify_header),
2368 .parent = "verify",
2369 .hide = 1,
2370 .category = FIO_OPT_C_IO,
2371 .group = FIO_OPT_G_VERIFY,
2372 },
2373 {
2374 .name = "verify_pattern",
2375 .lname = "Verify pattern",
2376 .type = FIO_OPT_STR,
2377 .cb = str_verify_pattern_cb,
2378 .off1 = td_var_offset(verify_pattern),
2379 .help = "Fill pattern for IO buffers",
2380 .parent = "verify",
2381 .hide = 1,
2382 .category = FIO_OPT_C_IO,
2383 .group = FIO_OPT_G_VERIFY,
2384 },
2385 {
2386 .name = "verify_fatal",
2387 .lname = "Verify fatal",
2388 .type = FIO_OPT_BOOL,
2389 .off1 = td_var_offset(verify_fatal),
2390 .def = "0",
2391 .help = "Exit on a single verify failure, don't continue",
2392 .parent = "verify",
2393 .hide = 1,
2394 .category = FIO_OPT_C_IO,
2395 .group = FIO_OPT_G_VERIFY,
2396 },
2397 {
2398 .name = "verify_dump",
2399 .lname = "Verify dump",
2400 .type = FIO_OPT_BOOL,
2401 .off1 = td_var_offset(verify_dump),
2402 .def = "0",
2403 .help = "Dump contents of good and bad blocks on failure",
2404 .parent = "verify",
2405 .hide = 1,
2406 .category = FIO_OPT_C_IO,
2407 .group = FIO_OPT_G_VERIFY,
2408 },
2409 {
2410 .name = "verify_async",
2411 .lname = "Verify asynchronously",
2412 .type = FIO_OPT_INT,
2413 .off1 = td_var_offset(verify_async),
2414 .def = "0",
2415 .help = "Number of async verifier threads to use",
2416 .parent = "verify",
2417 .hide = 1,
2418 .category = FIO_OPT_C_IO,
2419 .group = FIO_OPT_G_VERIFY,
2420 },
2421 {
2422 .name = "verify_backlog",
2423 .lname = "Verify backlog",
2424 .type = FIO_OPT_STR_VAL,
2425 .off1 = td_var_offset(verify_backlog),
2426 .help = "Verify after this number of blocks are written",
2427 .parent = "verify",
2428 .hide = 1,
2429 .category = FIO_OPT_C_IO,
2430 .group = FIO_OPT_G_VERIFY,
2431 },
2432 {
2433 .name = "verify_backlog_batch",
2434 .lname = "Verify backlog batch",
2435 .type = FIO_OPT_INT,
2436 .off1 = td_var_offset(verify_batch),
2437 .help = "Verify this number of IO blocks",
2438 .parent = "verify",
2439 .hide = 1,
2440 .category = FIO_OPT_C_IO,
2441 .group = FIO_OPT_G_VERIFY,
2442 },
2443#ifdef FIO_HAVE_CPU_AFFINITY
2444 {
2445 .name = "verify_async_cpus",
2446 .lname = "Async verify CPUs",
2447 .type = FIO_OPT_STR,
2448 .cb = str_verify_cpus_allowed_cb,
2449 .off1 = td_var_offset(verify_cpumask),
2450 .help = "Set CPUs allowed for async verify threads",
2451 .parent = "verify_async",
2452 .hide = 1,
2453 .category = FIO_OPT_C_IO,
2454 .group = FIO_OPT_G_VERIFY,
2455 },
2456#endif
2457 {
2458 .name = "experimental_verify",
2459 .off1 = td_var_offset(experimental_verify),
2460 .type = FIO_OPT_BOOL,
2461 .help = "Enable experimental verification",
2462 .parent = "verify",
2463 .category = FIO_OPT_C_IO,
2464 .group = FIO_OPT_G_VERIFY,
2465 },
2466 {
2467 .name = "verify_state_load",
2468 .lname = "Load verify state",
2469 .off1 = td_var_offset(verify_state),
2470 .type = FIO_OPT_BOOL,
2471 .help = "Load verify termination state",
2472 .parent = "verify",
2473 .category = FIO_OPT_C_IO,
2474 .group = FIO_OPT_G_VERIFY,
2475 },
2476 {
2477 .name = "verify_state_save",
2478 .lname = "Save verify state",
2479 .off1 = td_var_offset(verify_state_save),
2480 .type = FIO_OPT_BOOL,
2481 .def = "1",
2482 .help = "Save verify state on termination",
2483 .parent = "verify",
2484 .category = FIO_OPT_C_IO,
2485 .group = FIO_OPT_G_VERIFY,
2486 },
2487#ifdef FIO_HAVE_TRIM
2488 {
2489 .name = "trim_percentage",
2490 .lname = "Trim percentage",
2491 .type = FIO_OPT_INT,
2492 .off1 = td_var_offset(trim_percentage),
2493 .minval = 0,
2494 .maxval = 100,
2495 .help = "Number of verify blocks to discard/trim",
2496 .parent = "verify",
2497 .def = "0",
2498 .interval = 1,
2499 .hide = 1,
2500 .category = FIO_OPT_C_IO,
2501 .group = FIO_OPT_G_TRIM,
2502 },
2503 {
2504 .name = "trim_verify_zero",
2505 .lname = "Verify trim zero",
2506 .type = FIO_OPT_BOOL,
2507 .help = "Verify that trim/discarded blocks are returned as zeroes",
2508 .off1 = td_var_offset(trim_zero),
2509 .parent = "trim_percentage",
2510 .hide = 1,
2511 .def = "1",
2512 .category = FIO_OPT_C_IO,
2513 .group = FIO_OPT_G_TRIM,
2514 },
2515 {
2516 .name = "trim_backlog",
2517 .lname = "Trim backlog",
2518 .type = FIO_OPT_STR_VAL,
2519 .off1 = td_var_offset(trim_backlog),
2520 .help = "Trim after this number of blocks are written",
2521 .parent = "trim_percentage",
2522 .hide = 1,
2523 .interval = 1,
2524 .category = FIO_OPT_C_IO,
2525 .group = FIO_OPT_G_TRIM,
2526 },
2527 {
2528 .name = "trim_backlog_batch",
2529 .lname = "Trim backlog batch",
2530 .type = FIO_OPT_INT,
2531 .off1 = td_var_offset(trim_batch),
2532 .help = "Trim this number of IO blocks",
2533 .parent = "trim_percentage",
2534 .hide = 1,
2535 .interval = 1,
2536 .category = FIO_OPT_C_IO,
2537 .group = FIO_OPT_G_TRIM,
2538 },
2539#endif
2540 {
2541 .name = "write_iolog",
2542 .lname = "Write I/O log",
2543 .type = FIO_OPT_STR_STORE,
2544 .off1 = td_var_offset(write_iolog_file),
2545 .help = "Store IO pattern to file",
2546 .category = FIO_OPT_C_IO,
2547 .group = FIO_OPT_G_IOLOG,
2548 },
2549 {
2550 .name = "read_iolog",
2551 .lname = "Read I/O log",
2552 .type = FIO_OPT_STR_STORE,
2553 .off1 = td_var_offset(read_iolog_file),
2554 .help = "Playback IO pattern from file",
2555 .category = FIO_OPT_C_IO,
2556 .group = FIO_OPT_G_IOLOG,
2557 },
2558 {
2559 .name = "replay_no_stall",
2560 .lname = "Don't stall on replay",
2561 .type = FIO_OPT_BOOL,
2562 .off1 = td_var_offset(no_stall),
2563 .def = "0",
2564 .parent = "read_iolog",
2565 .hide = 1,
2566 .help = "Playback IO pattern file as fast as possible without stalls",
2567 .category = FIO_OPT_C_IO,
2568 .group = FIO_OPT_G_IOLOG,
2569 },
2570 {
2571 .name = "replay_redirect",
2572 .lname = "Redirect device for replay",
2573 .type = FIO_OPT_STR_STORE,
2574 .off1 = td_var_offset(replay_redirect),
2575 .parent = "read_iolog",
2576 .hide = 1,
2577 .help = "Replay all I/O onto this device, regardless of trace device",
2578 .category = FIO_OPT_C_IO,
2579 .group = FIO_OPT_G_IOLOG,
2580 },
2581 {
2582 .name = "replay_scale",
2583 .lname = "Replace offset scale factor",
2584 .type = FIO_OPT_INT,
2585 .off1 = td_var_offset(replay_scale),
2586 .parent = "read_iolog",
2587 .def = "1",
2588 .help = "Align offsets to this blocksize",
2589 .category = FIO_OPT_C_IO,
2590 .group = FIO_OPT_G_IOLOG,
2591 },
2592 {
2593 .name = "replay_align",
2594 .lname = "Replace alignment",
2595 .type = FIO_OPT_INT,
2596 .off1 = td_var_offset(replay_align),
2597 .parent = "read_iolog",
2598 .help = "Scale offset down by this factor",
2599 .category = FIO_OPT_C_IO,
2600 .group = FIO_OPT_G_IOLOG,
2601 .pow2 = 1,
2602 },
2603 {
2604 .name = "exec_prerun",
2605 .lname = "Pre-execute runnable",
2606 .type = FIO_OPT_STR_STORE,
2607 .off1 = td_var_offset(exec_prerun),
2608 .help = "Execute this file prior to running job",
2609 .category = FIO_OPT_C_GENERAL,
2610 .group = FIO_OPT_G_INVALID,
2611 },
2612 {
2613 .name = "exec_postrun",
2614 .lname = "Post-execute runnable",
2615 .type = FIO_OPT_STR_STORE,
2616 .off1 = td_var_offset(exec_postrun),
2617 .help = "Execute this file after running job",
2618 .category = FIO_OPT_C_GENERAL,
2619 .group = FIO_OPT_G_INVALID,
2620 },
2621#ifdef FIO_HAVE_IOSCHED_SWITCH
2622 {
2623 .name = "ioscheduler",
2624 .lname = "I/O scheduler",
2625 .type = FIO_OPT_STR_STORE,
2626 .off1 = td_var_offset(ioscheduler),
2627 .help = "Use this IO scheduler on the backing device",
2628 .category = FIO_OPT_C_FILE,
2629 .group = FIO_OPT_G_INVALID,
2630 },
2631#endif
2632 {
2633 .name = "zonesize",
2634 .lname = "Zone size",
2635 .type = FIO_OPT_STR_VAL,
2636 .off1 = td_var_offset(zone_size),
2637 .help = "Amount of data to read per zone",
2638 .def = "0",
2639 .interval = 1024 * 1024,
2640 .category = FIO_OPT_C_IO,
2641 .group = FIO_OPT_G_ZONE,
2642 },
2643 {
2644 .name = "zonerange",
2645 .lname = "Zone range",
2646 .type = FIO_OPT_STR_VAL,
2647 .off1 = td_var_offset(zone_range),
2648 .help = "Give size of an IO zone",
2649 .def = "0",
2650 .interval = 1024 * 1024,
2651 .category = FIO_OPT_C_IO,
2652 .group = FIO_OPT_G_ZONE,
2653 },
2654 {
2655 .name = "zoneskip",
2656 .lname = "Zone skip",
2657 .type = FIO_OPT_STR_VAL,
2658 .off1 = td_var_offset(zone_skip),
2659 .help = "Space between IO zones",
2660 .def = "0",
2661 .interval = 1024 * 1024,
2662 .category = FIO_OPT_C_IO,
2663 .group = FIO_OPT_G_ZONE,
2664 },
2665 {
2666 .name = "lockmem",
2667 .lname = "Lock memory",
2668 .type = FIO_OPT_STR_VAL,
2669 .off1 = td_var_offset(lockmem),
2670 .help = "Lock down this amount of memory (per worker)",
2671 .def = "0",
2672 .interval = 1024 * 1024,
2673 .category = FIO_OPT_C_GENERAL,
2674 .group = FIO_OPT_G_INVALID,
2675 },
2676 {
2677 .name = "rwmixread",
2678 .lname = "Read/write mix read",
2679 .type = FIO_OPT_INT,
2680 .cb = str_rwmix_read_cb,
2681 .off1 = td_var_offset(rwmix[DDIR_READ]),
2682 .maxval = 100,
2683 .help = "Percentage of mixed workload that is reads",
2684 .def = "50",
2685 .interval = 5,
2686 .inverse = "rwmixwrite",
2687 .category = FIO_OPT_C_IO,
2688 .group = FIO_OPT_G_RWMIX,
2689 },
2690 {
2691 .name = "rwmixwrite",
2692 .lname = "Read/write mix write",
2693 .type = FIO_OPT_INT,
2694 .cb = str_rwmix_write_cb,
2695 .off1 = td_var_offset(rwmix[DDIR_WRITE]),
2696 .maxval = 100,
2697 .help = "Percentage of mixed workload that is writes",
2698 .def = "50",
2699 .interval = 5,
2700 .inverse = "rwmixread",
2701 .category = FIO_OPT_C_IO,
2702 .group = FIO_OPT_G_RWMIX,
2703 },
2704 {
2705 .name = "rwmixcycle",
2706 .lname = "Read/write mix cycle",
2707 .type = FIO_OPT_DEPRECATED,
2708 .category = FIO_OPT_C_IO,
2709 .group = FIO_OPT_G_RWMIX,
2710 },
2711 {
2712 .name = "nice",
2713 .lname = "Nice",
2714 .type = FIO_OPT_INT,
2715 .off1 = td_var_offset(nice),
2716 .help = "Set job CPU nice value",
2717 .minval = -19,
2718 .maxval = 20,
2719 .def = "0",
2720 .interval = 1,
2721 .category = FIO_OPT_C_GENERAL,
2722 .group = FIO_OPT_G_CRED,
2723 },
2724#ifdef FIO_HAVE_IOPRIO
2725 {
2726 .name = "prio",
2727 .lname = "I/O nice priority",
2728 .type = FIO_OPT_INT,
2729 .off1 = td_var_offset(ioprio),
2730 .help = "Set job IO priority value",
2731 .minval = 0,
2732 .maxval = 7,
2733 .interval = 1,
2734 .category = FIO_OPT_C_GENERAL,
2735 .group = FIO_OPT_G_CRED,
2736 },
2737 {
2738 .name = "prioclass",
2739 .lname = "I/O nice priority class",
2740 .type = FIO_OPT_INT,
2741 .off1 = td_var_offset(ioprio_class),
2742 .help = "Set job IO priority class",
2743 .minval = 0,
2744 .maxval = 3,
2745 .interval = 1,
2746 .category = FIO_OPT_C_GENERAL,
2747 .group = FIO_OPT_G_CRED,
2748 },
2749#endif
2750 {
2751 .name = "thinktime",
2752 .lname = "Thinktime",
2753 .type = FIO_OPT_INT,
2754 .off1 = td_var_offset(thinktime),
2755 .help = "Idle time between IO buffers (usec)",
2756 .def = "0",
2757 .is_time = 1,
2758 .category = FIO_OPT_C_IO,
2759 .group = FIO_OPT_G_THINKTIME,
2760 },
2761 {
2762 .name = "thinktime_spin",
2763 .lname = "Thinktime spin",
2764 .type = FIO_OPT_INT,
2765 .off1 = td_var_offset(thinktime_spin),
2766 .help = "Start think time by spinning this amount (usec)",
2767 .def = "0",
2768 .is_time = 1,
2769 .parent = "thinktime",
2770 .hide = 1,
2771 .category = FIO_OPT_C_IO,
2772 .group = FIO_OPT_G_THINKTIME,
2773 },
2774 {
2775 .name = "thinktime_blocks",
2776 .lname = "Thinktime blocks",
2777 .type = FIO_OPT_INT,
2778 .off1 = td_var_offset(thinktime_blocks),
2779 .help = "IO buffer period between 'thinktime'",
2780 .def = "1",
2781 .parent = "thinktime",
2782 .hide = 1,
2783 .category = FIO_OPT_C_IO,
2784 .group = FIO_OPT_G_THINKTIME,
2785 },
2786 {
2787 .name = "rate",
2788 .lname = "I/O rate",
2789 .type = FIO_OPT_INT,
2790 .off1 = td_var_offset(rate[DDIR_READ]),
2791 .off2 = td_var_offset(rate[DDIR_WRITE]),
2792 .off3 = td_var_offset(rate[DDIR_TRIM]),
2793 .help = "Set bandwidth rate",
2794 .category = FIO_OPT_C_IO,
2795 .group = FIO_OPT_G_RATE,
2796 },
2797 {
2798 .name = "ratemin",
2799 .lname = "I/O min rate",
2800 .type = FIO_OPT_INT,
2801 .off1 = td_var_offset(ratemin[DDIR_READ]),
2802 .off2 = td_var_offset(ratemin[DDIR_WRITE]),
2803 .off3 = td_var_offset(ratemin[DDIR_TRIM]),
2804 .help = "Job must meet this rate or it will be shutdown",
2805 .parent = "rate",
2806 .hide = 1,
2807 .category = FIO_OPT_C_IO,
2808 .group = FIO_OPT_G_RATE,
2809 },
2810 {
2811 .name = "rate_iops",
2812 .lname = "I/O rate IOPS",
2813 .type = FIO_OPT_INT,
2814 .off1 = td_var_offset(rate_iops[DDIR_READ]),
2815 .off2 = td_var_offset(rate_iops[DDIR_WRITE]),
2816 .off3 = td_var_offset(rate_iops[DDIR_TRIM]),
2817 .help = "Limit IO used to this number of IO operations/sec",
2818 .hide = 1,
2819 .category = FIO_OPT_C_IO,
2820 .group = FIO_OPT_G_RATE,
2821 },
2822 {
2823 .name = "rate_iops_min",
2824 .lname = "I/O min rate IOPS",
2825 .type = FIO_OPT_INT,
2826 .off1 = td_var_offset(rate_iops_min[DDIR_READ]),
2827 .off2 = td_var_offset(rate_iops_min[DDIR_WRITE]),
2828 .off3 = td_var_offset(rate_iops_min[DDIR_TRIM]),
2829 .help = "Job must meet this rate or it will be shut down",
2830 .parent = "rate_iops",
2831 .hide = 1,
2832 .category = FIO_OPT_C_IO,
2833 .group = FIO_OPT_G_RATE,
2834 },
2835 {
2836 .name = "ratecycle",
2837 .lname = "I/O rate cycle",
2838 .type = FIO_OPT_INT,
2839 .off1 = td_var_offset(ratecycle),
2840 .help = "Window average for rate limits (msec)",
2841 .def = "1000",
2842 .parent = "rate",
2843 .hide = 1,
2844 .category = FIO_OPT_C_IO,
2845 .group = FIO_OPT_G_RATE,
2846 },
2847 {
2848 .name = "max_latency",
2849 .type = FIO_OPT_INT,
2850 .off1 = td_var_offset(max_latency),
2851 .help = "Maximum tolerated IO latency (usec)",
2852 .is_time = 1,
2853 .category = FIO_OPT_C_IO,
2854 .group = FIO_OPT_G_LATPROF,
2855 },
2856 {
2857 .name = "latency_target",
2858 .lname = "Latency Target (usec)",
2859 .type = FIO_OPT_STR_VAL_TIME,
2860 .off1 = td_var_offset(latency_target),
2861 .help = "Ramp to max queue depth supporting this latency",
2862 .is_time = 1,
2863 .category = FIO_OPT_C_IO,
2864 .group = FIO_OPT_G_LATPROF,
2865 },
2866 {
2867 .name = "latency_window",
2868 .lname = "Latency Window (usec)",
2869 .type = FIO_OPT_STR_VAL_TIME,
2870 .off1 = td_var_offset(latency_window),
2871 .help = "Time to sustain latency_target",
2872 .is_time = 1,
2873 .category = FIO_OPT_C_IO,
2874 .group = FIO_OPT_G_LATPROF,
2875 },
2876 {
2877 .name = "latency_percentile",
2878 .lname = "Latency Percentile",
2879 .type = FIO_OPT_FLOAT_LIST,
2880 .off1 = td_var_offset(latency_percentile),
2881 .help = "Percentile of IOs must be below latency_target",
2882 .def = "100",
2883 .maxlen = 1,
2884 .minfp = 0.0,
2885 .maxfp = 100.0,
2886 .category = FIO_OPT_C_IO,
2887 .group = FIO_OPT_G_LATPROF,
2888 },
2889 {
2890 .name = "invalidate",
2891 .lname = "Cache invalidate",
2892 .type = FIO_OPT_BOOL,
2893 .off1 = td_var_offset(invalidate_cache),
2894 .help = "Invalidate buffer/page cache prior to running job",
2895 .def = "1",
2896 .category = FIO_OPT_C_IO,
2897 .group = FIO_OPT_G_IO_TYPE,
2898 },
2899 {
2900 .name = "sync",
2901 .lname = "Synchronous I/O",
2902 .type = FIO_OPT_BOOL,
2903 .off1 = td_var_offset(sync_io),
2904 .help = "Use O_SYNC for buffered writes",
2905 .def = "0",
2906 .parent = "buffered",
2907 .hide = 1,
2908 .category = FIO_OPT_C_IO,
2909 .group = FIO_OPT_G_IO_TYPE,
2910 },
2911 {
2912 .name = "create_serialize",
2913 .lname = "Create serialize",
2914 .type = FIO_OPT_BOOL,
2915 .off1 = td_var_offset(create_serialize),
2916 .help = "Serialize creating of job files",
2917 .def = "1",
2918 .category = FIO_OPT_C_FILE,
2919 .group = FIO_OPT_G_INVALID,
2920 },
2921 {
2922 .name = "create_fsync",
2923 .lname = "Create fsync",
2924 .type = FIO_OPT_BOOL,
2925 .off1 = td_var_offset(create_fsync),
2926 .help = "fsync file after creation",
2927 .def = "1",
2928 .category = FIO_OPT_C_FILE,
2929 .group = FIO_OPT_G_INVALID,
2930 },
2931 {
2932 .name = "create_on_open",
2933 .lname = "Create on open",
2934 .type = FIO_OPT_BOOL,
2935 .off1 = td_var_offset(create_on_open),
2936 .help = "Create files when they are opened for IO",
2937 .def = "0",
2938 .category = FIO_OPT_C_FILE,
2939 .group = FIO_OPT_G_INVALID,
2940 },
2941 {
2942 .name = "create_only",
2943 .type = FIO_OPT_BOOL,
2944 .off1 = td_var_offset(create_only),
2945 .help = "Only perform file creation phase",
2946 .category = FIO_OPT_C_FILE,
2947 .def = "0",
2948 },
2949 {
2950 .name = "allow_file_create",
2951 .lname = "Allow file create",
2952 .type = FIO_OPT_BOOL,
2953 .off1 = td_var_offset(allow_create),
2954 .help = "Permit fio to create files, if they don't exist",
2955 .def = "1",
2956 .category = FIO_OPT_C_FILE,
2957 .group = FIO_OPT_G_FILENAME,
2958 },
2959 {
2960 .name = "allow_mounted_write",
2961 .lname = "Allow mounted write",
2962 .type = FIO_OPT_BOOL,
2963 .off1 = td_var_offset(allow_mounted_write),
2964 .help = "Allow writes to a mounted partition",
2965 .def = "0",
2966 .category = FIO_OPT_C_FILE,
2967 .group = FIO_OPT_G_FILENAME,
2968 },
2969 {
2970 .name = "pre_read",
2971 .lname = "Pre-read files",
2972 .type = FIO_OPT_BOOL,
2973 .off1 = td_var_offset(pre_read),
2974 .help = "Pre-read files before starting official testing",
2975 .def = "0",
2976 .category = FIO_OPT_C_FILE,
2977 .group = FIO_OPT_G_INVALID,
2978 },
2979#ifdef FIO_HAVE_CPU_AFFINITY
2980 {
2981 .name = "cpumask",
2982 .lname = "CPU mask",
2983 .type = FIO_OPT_INT,
2984 .cb = str_cpumask_cb,
2985 .off1 = td_var_offset(cpumask),
2986 .help = "CPU affinity mask",
2987 .category = FIO_OPT_C_GENERAL,
2988 .group = FIO_OPT_G_CRED,
2989 },
2990 {
2991 .name = "cpus_allowed",
2992 .lname = "CPUs allowed",
2993 .type = FIO_OPT_STR,
2994 .cb = str_cpus_allowed_cb,
2995 .off1 = td_var_offset(cpumask),
2996 .help = "Set CPUs allowed",
2997 .category = FIO_OPT_C_GENERAL,
2998 .group = FIO_OPT_G_CRED,
2999 },
3000 {
3001 .name = "cpus_allowed_policy",
3002 .lname = "CPUs allowed distribution policy",
3003 .type = FIO_OPT_STR,
3004 .off1 = td_var_offset(cpus_allowed_policy),
3005 .help = "Distribution policy for cpus_allowed",
3006 .parent = "cpus_allowed",
3007 .prio = 1,
3008 .posval = {
3009 { .ival = "shared",
3010 .oval = FIO_CPUS_SHARED,
3011 .help = "Mask shared between threads",
3012 },
3013 { .ival = "split",
3014 .oval = FIO_CPUS_SPLIT,
3015 .help = "Mask split between threads",
3016 },
3017 },
3018 .category = FIO_OPT_C_GENERAL,
3019 .group = FIO_OPT_G_CRED,
3020 },
3021#endif
3022#ifdef CONFIG_LIBNUMA
3023 {
3024 .name = "numa_cpu_nodes",
3025 .type = FIO_OPT_STR,
3026 .cb = str_numa_cpunodes_cb,
3027 .off1 = td_var_offset(numa_cpunodes),
3028 .help = "NUMA CPU nodes bind",
3029 .category = FIO_OPT_C_GENERAL,
3030 .group = FIO_OPT_G_INVALID,
3031 },
3032 {
3033 .name = "numa_mem_policy",
3034 .type = FIO_OPT_STR,
3035 .cb = str_numa_mpol_cb,
3036 .off1 = td_var_offset(numa_memnodes),
3037 .help = "NUMA memory policy setup",
3038 .category = FIO_OPT_C_GENERAL,
3039 .group = FIO_OPT_G_INVALID,
3040 },
3041#endif
3042 {
3043 .name = "end_fsync",
3044 .lname = "End fsync",
3045 .type = FIO_OPT_BOOL,
3046 .off1 = td_var_offset(end_fsync),
3047 .help = "Include fsync at the end of job",
3048 .def = "0",
3049 .category = FIO_OPT_C_FILE,
3050 .group = FIO_OPT_G_INVALID,
3051 },
3052 {
3053 .name = "fsync_on_close",
3054 .lname = "Fsync on close",
3055 .type = FIO_OPT_BOOL,
3056 .off1 = td_var_offset(fsync_on_close),
3057 .help = "fsync files on close",
3058 .def = "0",
3059 .category = FIO_OPT_C_FILE,
3060 .group = FIO_OPT_G_INVALID,
3061 },
3062 {
3063 .name = "unlink",
3064 .lname = "Unlink file",
3065 .type = FIO_OPT_BOOL,
3066 .off1 = td_var_offset(unlink),
3067 .help = "Unlink created files after job has completed",
3068 .def = "0",
3069 .category = FIO_OPT_C_FILE,
3070 .group = FIO_OPT_G_INVALID,
3071 },
3072 {
3073 .name = "exitall",
3074 .lname = "Exit-all on terminate",
3075 .type = FIO_OPT_STR_SET,
3076 .cb = str_exitall_cb,
3077 .help = "Terminate all jobs when one exits",
3078 .category = FIO_OPT_C_GENERAL,
3079 .group = FIO_OPT_G_PROCESS,
3080 },
3081 {
3082 .name = "stonewall",
3083 .lname = "Wait for previous",
3084 .alias = "wait_for_previous",
3085 .type = FIO_OPT_STR_SET,
3086 .off1 = td_var_offset(stonewall),
3087 .help = "Insert a hard barrier between this job and previous",
3088 .category = FIO_OPT_C_GENERAL,
3089 .group = FIO_OPT_G_PROCESS,
3090 },
3091 {
3092 .name = "new_group",
3093 .lname = "New group",
3094 .type = FIO_OPT_STR_SET,
3095 .off1 = td_var_offset(new_group),
3096 .help = "Mark the start of a new group (for reporting)",
3097 .category = FIO_OPT_C_GENERAL,
3098 .group = FIO_OPT_G_PROCESS,
3099 },
3100 {
3101 .name = "thread",
3102 .lname = "Thread",
3103 .type = FIO_OPT_STR_SET,
3104 .off1 = td_var_offset(use_thread),
3105 .help = "Use threads instead of processes",
3106#ifdef CONFIG_NO_SHM
3107 .def = "1",
3108 .no_warn_def = 1,
3109#endif
3110 .category = FIO_OPT_C_GENERAL,
3111 .group = FIO_OPT_G_PROCESS,
3112 },
3113 {
3114 .name = "per_job_logs",
3115 .type = FIO_OPT_BOOL,
3116 .off1 = td_var_offset(per_job_logs),
3117 .help = "Include job number in generated log files or not",
3118 .def = "1",
3119 .category = FIO_OPT_C_LOG,
3120 .group = FIO_OPT_G_INVALID,
3121 },
3122 {
3123 .name = "write_bw_log",
3124 .lname = "Write bandwidth log",
3125 .type = FIO_OPT_STR_STORE,
3126 .off1 = td_var_offset(bw_log_file),
3127 .help = "Write log of bandwidth during run",
3128 .category = FIO_OPT_C_LOG,
3129 .group = FIO_OPT_G_INVALID,
3130 },
3131 {
3132 .name = "write_lat_log",
3133 .lname = "Write latency log",
3134 .type = FIO_OPT_STR_STORE,
3135 .off1 = td_var_offset(lat_log_file),
3136 .help = "Write log of latency during run",
3137 .category = FIO_OPT_C_LOG,
3138 .group = FIO_OPT_G_INVALID,
3139 },
3140 {
3141 .name = "write_iops_log",
3142 .lname = "Write IOPS log",
3143 .type = FIO_OPT_STR_STORE,
3144 .off1 = td_var_offset(iops_log_file),
3145 .help = "Write log of IOPS during run",
3146 .category = FIO_OPT_C_LOG,
3147 .group = FIO_OPT_G_INVALID,
3148 },
3149 {
3150 .name = "log_avg_msec",
3151 .lname = "Log averaging (msec)",
3152 .type = FIO_OPT_INT,
3153 .off1 = td_var_offset(log_avg_msec),
3154 .help = "Average bw/iops/lat logs over this period of time",
3155 .def = "0",
3156 .category = FIO_OPT_C_LOG,
3157 .group = FIO_OPT_G_INVALID,
3158 },
3159 {
3160 .name = "log_offset",
3161 .lname = "Log offset of IO",
3162 .type = FIO_OPT_BOOL,
3163 .off1 = td_var_offset(log_offset),
3164 .help = "Include offset of IO for each log entry",
3165 .def = "0",
3166 .category = FIO_OPT_C_LOG,
3167 .group = FIO_OPT_G_INVALID,
3168 },
3169#ifdef CONFIG_ZLIB
3170 {
3171 .name = "log_compression",
3172 .lname = "Log compression",
3173 .type = FIO_OPT_INT,
3174 .off1 = td_var_offset(log_gz),
3175 .help = "Log in compressed chunks of this size",
3176 .minval = 32 * 1024 * 1024ULL,
3177 .maxval = 512 * 1024 * 1024ULL,
3178 .category = FIO_OPT_C_LOG,
3179 .group = FIO_OPT_G_INVALID,
3180 },
3181 {
3182 .name = "log_store_compressed",
3183 .lname = "Log store compressed",
3184 .type = FIO_OPT_BOOL,
3185 .off1 = td_var_offset(log_gz_store),
3186 .help = "Store logs in a compressed format",
3187 .category = FIO_OPT_C_LOG,
3188 .group = FIO_OPT_G_INVALID,
3189 },
3190#endif
3191 {
3192 .name = "block_error_percentiles",
3193 .lname = "Block error percentiles",
3194 .type = FIO_OPT_BOOL,
3195 .off1 = td_var_offset(block_error_hist),
3196 .help = "Record trim block errors and make a histogram",
3197 .def = "0",
3198 .category = FIO_OPT_C_LOG,
3199 .group = FIO_OPT_G_INVALID,
3200 },
3201 {
3202 .name = "bwavgtime",
3203 .lname = "Bandwidth average time",
3204 .type = FIO_OPT_INT,
3205 .off1 = td_var_offset(bw_avg_time),
3206 .help = "Time window over which to calculate bandwidth"
3207 " (msec)",
3208 .def = "500",
3209 .parent = "write_bw_log",
3210 .hide = 1,
3211 .interval = 100,
3212 .category = FIO_OPT_C_LOG,
3213 .group = FIO_OPT_G_INVALID,
3214 },
3215 {
3216 .name = "iopsavgtime",
3217 .lname = "IOPS average time",
3218 .type = FIO_OPT_INT,
3219 .off1 = td_var_offset(iops_avg_time),
3220 .help = "Time window over which to calculate IOPS (msec)",
3221 .def = "500",
3222 .parent = "write_iops_log",
3223 .hide = 1,
3224 .interval = 100,
3225 .category = FIO_OPT_C_LOG,
3226 .group = FIO_OPT_G_INVALID,
3227 },
3228 {
3229 .name = "group_reporting",
3230 .lname = "Group reporting",
3231 .type = FIO_OPT_STR_SET,
3232 .off1 = td_var_offset(group_reporting),
3233 .help = "Do reporting on a per-group basis",
3234 .category = FIO_OPT_C_STAT,
3235 .group = FIO_OPT_G_INVALID,
3236 },
3237 {
3238 .name = "zero_buffers",
3239 .lname = "Zero I/O buffers",
3240 .type = FIO_OPT_STR_SET,
3241 .off1 = td_var_offset(zero_buffers),
3242 .help = "Init IO buffers to all zeroes",
3243 .category = FIO_OPT_C_IO,
3244 .group = FIO_OPT_G_IO_BUF,
3245 },
3246 {
3247 .name = "refill_buffers",
3248 .lname = "Refill I/O buffers",
3249 .type = FIO_OPT_STR_SET,
3250 .off1 = td_var_offset(refill_buffers),
3251 .help = "Refill IO buffers on every IO submit",
3252 .category = FIO_OPT_C_IO,
3253 .group = FIO_OPT_G_IO_BUF,
3254 },
3255 {
3256 .name = "scramble_buffers",
3257 .lname = "Scramble I/O buffers",
3258 .type = FIO_OPT_BOOL,
3259 .off1 = td_var_offset(scramble_buffers),
3260 .help = "Slightly scramble buffers on every IO submit",
3261 .def = "1",
3262 .category = FIO_OPT_C_IO,
3263 .group = FIO_OPT_G_IO_BUF,
3264 },
3265 {
3266 .name = "buffer_pattern",
3267 .lname = "Buffer pattern",
3268 .type = FIO_OPT_STR,
3269 .cb = str_buffer_pattern_cb,
3270 .off1 = td_var_offset(buffer_pattern),
3271 .help = "Fill pattern for IO buffers",
3272 .category = FIO_OPT_C_IO,
3273 .group = FIO_OPT_G_IO_BUF,
3274 },
3275 {
3276 .name = "buffer_compress_percentage",
3277 .lname = "Buffer compression percentage",
3278 .type = FIO_OPT_INT,
3279 .cb = str_buffer_compress_cb,
3280 .off1 = td_var_offset(compress_percentage),
3281 .maxval = 100,
3282 .minval = 0,
3283 .help = "How compressible the buffer is (approximately)",
3284 .interval = 5,
3285 .category = FIO_OPT_C_IO,
3286 .group = FIO_OPT_G_IO_BUF,
3287 },
3288 {
3289 .name = "buffer_compress_chunk",
3290 .lname = "Buffer compression chunk size",
3291 .type = FIO_OPT_INT,
3292 .off1 = td_var_offset(compress_chunk),
3293 .parent = "buffer_compress_percentage",
3294 .hide = 1,
3295 .help = "Size of compressible region in buffer",
3296 .interval = 256,
3297 .category = FIO_OPT_C_IO,
3298 .group = FIO_OPT_G_IO_BUF,
3299 },
3300 {
3301 .name = "dedupe_percentage",
3302 .lname = "Dedupe percentage",
3303 .type = FIO_OPT_INT,
3304 .cb = str_dedupe_cb,
3305 .off1 = td_var_offset(dedupe_percentage),
3306 .maxval = 100,
3307 .minval = 0,
3308 .help = "Percentage of buffers that are dedupable",
3309 .interval = 1,
3310 .category = FIO_OPT_C_IO,
3311 .group = FIO_OPT_G_IO_BUF,
3312 },
3313 {
3314 .name = "clat_percentiles",
3315 .lname = "Completion latency percentiles",
3316 .type = FIO_OPT_BOOL,
3317 .off1 = td_var_offset(clat_percentiles),
3318 .help = "Enable the reporting of completion latency percentiles",
3319 .def = "1",
3320 .category = FIO_OPT_C_STAT,
3321 .group = FIO_OPT_G_INVALID,
3322 },
3323 {
3324 .name = "percentile_list",
3325 .lname = "Percentile list",
3326 .type = FIO_OPT_FLOAT_LIST,
3327 .off1 = td_var_offset(percentile_list),
3328 .off2 = td_var_offset(percentile_precision),
3329 .help = "Specify a custom list of percentiles to report for "
3330 "completion latency and block errors",
3331 .def = "1:5:10:20:30:40:50:60:70:80:90:95:99:99.5:99.9:99.95:99.99",
3332 .maxlen = FIO_IO_U_LIST_MAX_LEN,
3333 .minfp = 0.0,
3334 .maxfp = 100.0,
3335 .category = FIO_OPT_C_STAT,
3336 .group = FIO_OPT_G_INVALID,
3337 },
3338
3339#ifdef FIO_HAVE_DISK_UTIL
3340 {
3341 .name = "disk_util",
3342 .lname = "Disk utilization",
3343 .type = FIO_OPT_BOOL,
3344 .off1 = td_var_offset(do_disk_util),
3345 .help = "Log disk utilization statistics",
3346 .def = "1",
3347 .category = FIO_OPT_C_STAT,
3348 .group = FIO_OPT_G_INVALID,
3349 },
3350#endif
3351 {
3352 .name = "gtod_reduce",
3353 .lname = "Reduce gettimeofday() calls",
3354 .type = FIO_OPT_BOOL,
3355 .help = "Greatly reduce number of gettimeofday() calls",
3356 .cb = str_gtod_reduce_cb,
3357 .def = "0",
3358 .hide_on_set = 1,
3359 .category = FIO_OPT_C_STAT,
3360 .group = FIO_OPT_G_INVALID,
3361 },
3362 {
3363 .name = "disable_lat",
3364 .lname = "Disable all latency stats",
3365 .type = FIO_OPT_BOOL,
3366 .off1 = td_var_offset(disable_lat),
3367 .help = "Disable latency numbers",
3368 .parent = "gtod_reduce",
3369 .hide = 1,
3370 .def = "0",
3371 .category = FIO_OPT_C_STAT,
3372 .group = FIO_OPT_G_INVALID,
3373 },
3374 {
3375 .name = "disable_clat",
3376 .lname = "Disable completion latency stats",
3377 .type = FIO_OPT_BOOL,
3378 .off1 = td_var_offset(disable_clat),
3379 .help = "Disable completion latency numbers",
3380 .parent = "gtod_reduce",
3381 .hide = 1,
3382 .def = "0",
3383 .category = FIO_OPT_C_STAT,
3384 .group = FIO_OPT_G_INVALID,
3385 },
3386 {
3387 .name = "disable_slat",
3388 .lname = "Disable submission latency stats",
3389 .type = FIO_OPT_BOOL,
3390 .off1 = td_var_offset(disable_slat),
3391 .help = "Disable submission latency numbers",
3392 .parent = "gtod_reduce",
3393 .hide = 1,
3394 .def = "0",
3395 .category = FIO_OPT_C_STAT,
3396 .group = FIO_OPT_G_INVALID,
3397 },
3398 {
3399 .name = "disable_bw_measurement",
3400 .lname = "Disable bandwidth stats",
3401 .type = FIO_OPT_BOOL,
3402 .off1 = td_var_offset(disable_bw),
3403 .help = "Disable bandwidth logging",
3404 .parent = "gtod_reduce",
3405 .hide = 1,
3406 .def = "0",
3407 .category = FIO_OPT_C_STAT,
3408 .group = FIO_OPT_G_INVALID,
3409 },
3410 {
3411 .name = "gtod_cpu",
3412 .lname = "Dedicated gettimeofday() CPU",
3413 .type = FIO_OPT_INT,
3414 .off1 = td_var_offset(gtod_cpu),
3415 .help = "Set up dedicated gettimeofday() thread on this CPU",
3416 .verify = gtod_cpu_verify,
3417 .category = FIO_OPT_C_GENERAL,
3418 .group = FIO_OPT_G_CLOCK,
3419 },
3420 {
3421 .name = "unified_rw_reporting",
3422 .type = FIO_OPT_BOOL,
3423 .off1 = td_var_offset(unified_rw_rep),
3424 .help = "Unify reporting across data direction",
3425 .def = "0",
3426 .category = FIO_OPT_C_GENERAL,
3427 .group = FIO_OPT_G_INVALID,
3428 },
3429 {
3430 .name = "continue_on_error",
3431 .lname = "Continue on error",
3432 .type = FIO_OPT_STR,
3433 .off1 = td_var_offset(continue_on_error),
3434 .help = "Continue on non-fatal errors during IO",
3435 .def = "none",
3436 .category = FIO_OPT_C_GENERAL,
3437 .group = FIO_OPT_G_ERR,
3438 .posval = {
3439 { .ival = "none",
3440 .oval = ERROR_TYPE_NONE,
3441 .help = "Exit when an error is encountered",
3442 },
3443 { .ival = "read",
3444 .oval = ERROR_TYPE_READ,
3445 .help = "Continue on read errors only",
3446 },
3447 { .ival = "write",
3448 .oval = ERROR_TYPE_WRITE,
3449 .help = "Continue on write errors only",
3450 },
3451 { .ival = "io",
3452 .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
3453 .help = "Continue on any IO errors",
3454 },
3455 { .ival = "verify",
3456 .oval = ERROR_TYPE_VERIFY,
3457 .help = "Continue on verify errors only",
3458 },
3459 { .ival = "all",
3460 .oval = ERROR_TYPE_ANY,
3461 .help = "Continue on all io and verify errors",
3462 },
3463 { .ival = "0",
3464 .oval = ERROR_TYPE_NONE,
3465 .help = "Alias for 'none'",
3466 },
3467 { .ival = "1",
3468 .oval = ERROR_TYPE_ANY,
3469 .help = "Alias for 'all'",
3470 },
3471 },
3472 },
3473 {
3474 .name = "ignore_error",
3475 .type = FIO_OPT_STR,
3476 .cb = str_ignore_error_cb,
3477 .off1 = td_var_offset(ignore_error_nr),
3478 .help = "Set a specific list of errors to ignore",
3479 .parent = "rw",
3480 .category = FIO_OPT_C_GENERAL,
3481 .group = FIO_OPT_G_ERR,
3482 },
3483 {
3484 .name = "error_dump",
3485 .type = FIO_OPT_BOOL,
3486 .off1 = td_var_offset(error_dump),
3487 .def = "0",
3488 .help = "Dump info on each error",
3489 .category = FIO_OPT_C_GENERAL,
3490 .group = FIO_OPT_G_ERR,
3491 },
3492 {
3493 .name = "profile",
3494 .lname = "Profile",
3495 .type = FIO_OPT_STR_STORE,
3496 .off1 = td_var_offset(profile),
3497 .help = "Select a specific builtin performance test",
3498 .category = FIO_OPT_C_PROFILE,
3499 .group = FIO_OPT_G_INVALID,
3500 },
3501 {
3502 .name = "cgroup",
3503 .lname = "Cgroup",
3504 .type = FIO_OPT_STR_STORE,
3505 .off1 = td_var_offset(cgroup),
3506 .help = "Add job to cgroup of this name",
3507 .category = FIO_OPT_C_GENERAL,
3508 .group = FIO_OPT_G_CGROUP,
3509 },
3510 {
3511 .name = "cgroup_nodelete",
3512 .lname = "Cgroup no-delete",
3513 .type = FIO_OPT_BOOL,
3514 .off1 = td_var_offset(cgroup_nodelete),
3515 .help = "Do not delete cgroups after job completion",
3516 .def = "0",
3517 .parent = "cgroup",
3518 .category = FIO_OPT_C_GENERAL,
3519 .group = FIO_OPT_G_CGROUP,
3520 },
3521 {
3522 .name = "cgroup_weight",
3523 .lname = "Cgroup weight",
3524 .type = FIO_OPT_INT,
3525 .off1 = td_var_offset(cgroup_weight),
3526 .help = "Use given weight for cgroup",
3527 .minval = 100,
3528 .maxval = 1000,
3529 .parent = "cgroup",
3530 .category = FIO_OPT_C_GENERAL,
3531 .group = FIO_OPT_G_CGROUP,
3532 },
3533 {
3534 .name = "uid",
3535 .lname = "User ID",
3536 .type = FIO_OPT_INT,
3537 .off1 = td_var_offset(uid),
3538 .help = "Run job with this user ID",
3539 .category = FIO_OPT_C_GENERAL,
3540 .group = FIO_OPT_G_CRED,
3541 },
3542 {
3543 .name = "gid",
3544 .lname = "Group ID",
3545 .type = FIO_OPT_INT,
3546 .off1 = td_var_offset(gid),
3547 .help = "Run job with this group ID",
3548 .category = FIO_OPT_C_GENERAL,
3549 .group = FIO_OPT_G_CRED,
3550 },
3551 {
3552 .name = "kb_base",
3553 .lname = "KB Base",
3554 .type = FIO_OPT_INT,
3555 .off1 = td_var_offset(kb_base),
3556 .prio = 1,
3557 .def = "1024",
3558 .posval = {
3559 { .ival = "1024",
3560 .oval = 1024,
3561 .help = "Use 1024 as the K base",
3562 },
3563 { .ival = "1000",
3564 .oval = 1000,
3565 .help = "Use 1000 as the K base",
3566 },
3567 },
3568 .help = "How many bytes per KB for reporting (1000 or 1024)",
3569 .category = FIO_OPT_C_GENERAL,
3570 .group = FIO_OPT_G_INVALID,
3571 },
3572 {
3573 .name = "unit_base",
3574 .lname = "Base unit for reporting (Bits or Bytes)",
3575 .type = FIO_OPT_INT,
3576 .off1 = td_var_offset(unit_base),
3577 .prio = 1,
3578 .posval = {
3579 { .ival = "0",
3580 .oval = 0,
3581 .help = "Auto-detect",
3582 },
3583 { .ival = "8",
3584 .oval = 8,
3585 .help = "Normal (byte based)",
3586 },
3587 { .ival = "1",
3588 .oval = 1,
3589 .help = "Bit based",
3590 },
3591 },
3592 .help = "Bit multiple of result summary data (8 for byte, 1 for bit)",
3593 .category = FIO_OPT_C_GENERAL,
3594 .group = FIO_OPT_G_INVALID,
3595 },
3596 {
3597 .name = "hugepage-size",
3598 .lname = "Hugepage size",
3599 .type = FIO_OPT_INT,
3600 .off1 = td_var_offset(hugepage_size),
3601 .help = "When using hugepages, specify size of each page",
3602 .def = __fio_stringify(FIO_HUGE_PAGE),
3603 .interval = 1024 * 1024,
3604 .category = FIO_OPT_C_GENERAL,
3605 .group = FIO_OPT_G_INVALID,
3606 },
3607 {
3608 .name = "flow_id",
3609 .lname = "I/O flow ID",
3610 .type = FIO_OPT_INT,
3611 .off1 = td_var_offset(flow_id),
3612 .help = "The flow index ID to use",
3613 .def = "0",
3614 .category = FIO_OPT_C_IO,
3615 .group = FIO_OPT_G_IO_FLOW,
3616 },
3617 {
3618 .name = "flow",
3619 .lname = "I/O flow weight",
3620 .type = FIO_OPT_INT,
3621 .off1 = td_var_offset(flow),
3622 .help = "Weight for flow control of this job",
3623 .parent = "flow_id",
3624 .hide = 1,
3625 .def = "0",
3626 .category = FIO_OPT_C_IO,
3627 .group = FIO_OPT_G_IO_FLOW,
3628 },
3629 {
3630 .name = "flow_watermark",
3631 .lname = "I/O flow watermark",
3632 .type = FIO_OPT_INT,
3633 .off1 = td_var_offset(flow_watermark),
3634 .help = "High watermark for flow control. This option"
3635 " should be set to the same value for all threads"
3636 " with non-zero flow.",
3637 .parent = "flow_id",
3638 .hide = 1,
3639 .def = "1024",
3640 .category = FIO_OPT_C_IO,
3641 .group = FIO_OPT_G_IO_FLOW,
3642 },
3643 {
3644 .name = "flow_sleep",
3645 .lname = "I/O flow sleep",
3646 .type = FIO_OPT_INT,
3647 .off1 = td_var_offset(flow_sleep),
3648 .help = "How many microseconds to sleep after being held"
3649 " back by the flow control mechanism",
3650 .parent = "flow_id",
3651 .hide = 1,
3652 .def = "0",
3653 .category = FIO_OPT_C_IO,
3654 .group = FIO_OPT_G_IO_FLOW,
3655 },
3656 {
3657 .name = "skip_bad",
3658 .lname = "Skip operations against bad blocks",
3659 .type = FIO_OPT_BOOL,
3660 .off1 = td_var_offset(skip_bad),
3661 .help = "Skip operations against known bad blocks.",
3662 .hide = 1,
3663 .def = "0",
3664 .category = FIO_OPT_C_IO,
3665 .group = FIO_OPT_G_MTD,
3666 },
3667 {
3668 .name = NULL,
3669 },
3670};
3671
3672static void add_to_lopt(struct option *lopt, struct fio_option *o,
3673 const char *name, int val)
3674{
3675 lopt->name = (char *) name;
3676 lopt->val = val;
3677 if (o->type == FIO_OPT_STR_SET)
3678 lopt->has_arg = optional_argument;
3679 else
3680 lopt->has_arg = required_argument;
3681}
3682
3683static void options_to_lopts(struct fio_option *opts,
3684 struct option *long_options,
3685 int i, int option_type)
3686{
3687 struct fio_option *o = &opts[0];
3688 while (o->name) {
3689 add_to_lopt(&long_options[i], o, o->name, option_type);
3690 if (o->alias) {
3691 i++;
3692 add_to_lopt(&long_options[i], o, o->alias, option_type);
3693 }
3694
3695 i++;
3696 o++;
3697 assert(i < FIO_NR_OPTIONS);
3698 }
3699}
3700
3701void fio_options_set_ioengine_opts(struct option *long_options,
3702 struct thread_data *td)
3703{
3704 unsigned int i;
3705
3706 i = 0;
3707 while (long_options[i].name) {
3708 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
3709 memset(&long_options[i], 0, sizeof(*long_options));
3710 break;
3711 }
3712 i++;
3713 }
3714
3715 /*
3716 * Just clear out the prior ioengine options.
3717 */
3718 if (!td || !td->eo)
3719 return;
3720
3721 options_to_lopts(td->io_ops->options, long_options, i,
3722 FIO_GETOPT_IOENGINE);
3723}
3724
3725void fio_options_dup_and_init(struct option *long_options)
3726{
3727 unsigned int i;
3728
3729 options_init(fio_options);
3730
3731 i = 0;
3732 while (long_options[i].name)
3733 i++;
3734
3735 options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
3736}
3737
3738struct fio_keyword {
3739 const char *word;
3740 const char *desc;
3741 char *replace;
3742};
3743
3744static struct fio_keyword fio_keywords[] = {
3745 {
3746 .word = "$pagesize",
3747 .desc = "Page size in the system",
3748 },
3749 {
3750 .word = "$mb_memory",
3751 .desc = "Megabytes of memory online",
3752 },
3753 {
3754 .word = "$ncpus",
3755 .desc = "Number of CPUs online in the system",
3756 },
3757 {
3758 .word = NULL,
3759 },
3760};
3761
3762void fio_keywords_exit(void)
3763{
3764 struct fio_keyword *kw;
3765
3766 kw = &fio_keywords[0];
3767 while (kw->word) {
3768 free(kw->replace);
3769 kw->replace = NULL;
3770 kw++;
3771 }
3772}
3773
3774void fio_keywords_init(void)
3775{
3776 unsigned long long mb_memory;
3777 char buf[128];
3778 long l;
3779
3780 sprintf(buf, "%lu", (unsigned long) page_size);
3781 fio_keywords[0].replace = strdup(buf);
3782
3783 mb_memory = os_phys_mem() / (1024 * 1024);
3784 sprintf(buf, "%llu", mb_memory);
3785 fio_keywords[1].replace = strdup(buf);
3786
3787 l = cpus_online();
3788 sprintf(buf, "%lu", l);
3789 fio_keywords[2].replace = strdup(buf);
3790}
3791
3792#define BC_APP "bc"
3793
3794static char *bc_calc(char *str)
3795{
3796 char buf[128], *tmp;
3797 FILE *f;
3798 int ret;
3799
3800 /*
3801 * No math, just return string
3802 */
3803 if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
3804 !strchr(str, '/')) || strchr(str, '\''))
3805 return str;
3806
3807 /*
3808 * Split option from value, we only need to calculate the value
3809 */
3810 tmp = strchr(str, '=');
3811 if (!tmp)
3812 return str;
3813
3814 tmp++;
3815
3816 /*
3817 * Prevent buffer overflows; such a case isn't reasonable anyway
3818 */
3819 if (strlen(str) >= 128 || strlen(tmp) > 100)
3820 return str;
3821
3822 sprintf(buf, "which %s > /dev/null", BC_APP);
3823 if (system(buf)) {
3824 log_err("fio: bc is needed for performing math\n");
3825 return NULL;
3826 }
3827
3828 sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
3829 f = popen(buf, "r");
3830 if (!f)
3831 return NULL;
3832
3833 ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
3834 if (ret <= 0) {
3835 pclose(f);
3836 return NULL;
3837 }
3838
3839 pclose(f);
3840 buf[(tmp - str) + ret - 1] = '\0';
3841 memcpy(buf, str, tmp - str);
3842 free(str);
3843 return strdup(buf);
3844}
3845
3846/*
3847 * Return a copy of the input string with substrings of the form ${VARNAME}
3848 * substituted with the value of the environment variable VARNAME. The
3849 * substitution always occurs, even if VARNAME is empty or the corresponding
3850 * environment variable undefined.
3851 */
3852static char *option_dup_subs(const char *opt)
3853{
3854 char out[OPT_LEN_MAX+1];
3855 char in[OPT_LEN_MAX+1];
3856 char *outptr = out;
3857 char *inptr = in;
3858 char *ch1, *ch2, *env;
3859 ssize_t nchr = OPT_LEN_MAX;
3860 size_t envlen;
3861
3862 if (strlen(opt) + 1 > OPT_LEN_MAX) {
3863 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
3864 return NULL;
3865 }
3866
3867 in[OPT_LEN_MAX] = '\0';
3868 strncpy(in, opt, OPT_LEN_MAX);
3869
3870 while (*inptr && nchr > 0) {
3871 if (inptr[0] == '$' && inptr[1] == '{') {
3872 ch2 = strchr(inptr, '}');
3873 if (ch2 && inptr+1 < ch2) {
3874 ch1 = inptr+2;
3875 inptr = ch2+1;
3876 *ch2 = '\0';
3877
3878 env = getenv(ch1);
3879 if (env) {
3880 envlen = strlen(env);
3881 if (envlen <= nchr) {
3882 memcpy(outptr, env, envlen);
3883 outptr += envlen;
3884 nchr -= envlen;
3885 }
3886 }
3887
3888 continue;
3889 }
3890 }
3891
3892 *outptr++ = *inptr++;
3893 --nchr;
3894 }
3895
3896 *outptr = '\0';
3897 return strdup(out);
3898}
3899
3900/*
3901 * Look for reserved variable names and replace them with real values
3902 */
3903static char *fio_keyword_replace(char *opt)
3904{
3905 char *s;
3906 int i;
3907 int docalc = 0;
3908
3909 for (i = 0; fio_keywords[i].word != NULL; i++) {
3910 struct fio_keyword *kw = &fio_keywords[i];
3911
3912 while ((s = strstr(opt, kw->word)) != NULL) {
3913 char *new = malloc(strlen(opt) + 1);
3914 char *o_org = opt;
3915 int olen = s - opt;
3916 int len;
3917
3918 /*
3919 * Copy part of the string before the keyword and
3920 * sprintf() the replacement after it.
3921 */
3922 memcpy(new, opt, olen);
3923 len = sprintf(new + olen, "%s", kw->replace);
3924
3925 /*
3926 * If there's more in the original string, copy that
3927 * in too
3928 */
3929 opt += strlen(kw->word) + olen;
3930 if (strlen(opt))
3931 memcpy(new + olen + len, opt, opt - o_org - 1);
3932
3933 /*
3934 * replace opt and free the old opt
3935 */
3936 opt = new;
3937 free(o_org);
3938
3939 docalc = 1;
3940 }
3941 }
3942
3943 /*
3944 * Check for potential math and invoke bc, if possible
3945 */
3946 if (docalc)
3947 opt = bc_calc(opt);
3948
3949 return opt;
3950}
3951
3952static char **dup_and_sub_options(char **opts, int num_opts)
3953{
3954 int i;
3955 char **opts_copy = malloc(num_opts * sizeof(*opts));
3956 for (i = 0; i < num_opts; i++) {
3957 opts_copy[i] = option_dup_subs(opts[i]);
3958 if (!opts_copy[i])
3959 continue;
3960 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
3961 }
3962 return opts_copy;
3963}
3964
3965static void show_closest_option(const char *opt)
3966{
3967 int best_option, best_distance;
3968 int i, distance;
3969 char *name;
3970
3971 if (!strlen(opt))
3972 return;
3973
3974 name = strdup(opt);
3975 i = 0;
3976 while (name[i] != '\0' && name[i] != '=')
3977 i++;
3978 name[i] = '\0';
3979
3980 best_option = -1;
3981 best_distance = INT_MAX;
3982 i = 0;
3983 while (fio_options[i].name) {
3984 distance = string_distance(name, fio_options[i].name);
3985 if (distance < best_distance) {
3986 best_distance = distance;
3987 best_option = i;
3988 }
3989 i++;
3990 }
3991
3992 if (best_option != -1 && string_distance_ok(name, best_distance))
3993 log_err("Did you mean %s?\n", fio_options[best_option].name);
3994
3995 free(name);
3996}
3997
3998int fio_options_parse(struct thread_data *td, char **opts, int num_opts,
3999 int dump_cmdline)
4000{
4001 int i, ret, unknown;
4002 char **opts_copy;
4003
4004 sort_options(opts, fio_options, num_opts);
4005 opts_copy = dup_and_sub_options(opts, num_opts);
4006
4007 for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
4008 struct fio_option *o;
4009 int newret = parse_option(opts_copy[i], opts[i], fio_options,
4010 &o, td, dump_cmdline);
4011
4012 if (!newret && o)
4013 fio_option_mark_set(&td->o, o);
4014
4015 if (opts_copy[i]) {
4016 if (newret && !o) {
4017 unknown++;
4018 continue;
4019 }
4020 free(opts_copy[i]);
4021 opts_copy[i] = NULL;
4022 }
4023
4024 ret |= newret;
4025 }
4026
4027 if (unknown) {
4028 ret |= ioengine_load(td);
4029 if (td->eo) {
4030 sort_options(opts_copy, td->io_ops->options, num_opts);
4031 opts = opts_copy;
4032 }
4033 for (i = 0; i < num_opts; i++) {
4034 struct fio_option *o = NULL;
4035 int newret = 1;
4036
4037 if (!opts_copy[i])
4038 continue;
4039
4040 if (td->eo)
4041 newret = parse_option(opts_copy[i], opts[i],
4042 td->io_ops->options, &o,
4043 td->eo, dump_cmdline);
4044
4045 ret |= newret;
4046 if (!o) {
4047 log_err("Bad option <%s>\n", opts[i]);
4048 show_closest_option(opts[i]);
4049 }
4050 free(opts_copy[i]);
4051 opts_copy[i] = NULL;
4052 }
4053 }
4054
4055 free(opts_copy);
4056 return ret;
4057}
4058
4059int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
4060{
4061 int ret;
4062
4063 ret = parse_cmd_option(opt, val, fio_options, td);
4064 if (!ret) {
4065 struct fio_option *o;
4066
4067 o = find_option(fio_options, opt);
4068 if (o)
4069 fio_option_mark_set(&td->o, o);
4070 }
4071
4072 return ret;
4073}
4074
4075int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
4076 char *val)
4077{
4078 return parse_cmd_option(opt, val, td->io_ops->options, td->eo);
4079}
4080
4081void fio_fill_default_options(struct thread_data *td)
4082{
4083 td->o.magic = OPT_MAGIC;
4084 fill_default_options(td, fio_options);
4085}
4086
4087int fio_show_option_help(const char *opt)
4088{
4089 return show_cmd_help(fio_options, opt);
4090}
4091
4092void options_mem_dupe(void *data, struct fio_option *options)
4093{
4094 struct fio_option *o;
4095 char **ptr;
4096
4097 for (o = &options[0]; o->name; o++) {
4098 if (o->type != FIO_OPT_STR_STORE)
4099 continue;
4100
4101 ptr = td_var(data, o, o->off1);
4102 if (*ptr)
4103 *ptr = strdup(*ptr);
4104 }
4105}
4106
4107/*
4108 * dupe FIO_OPT_STR_STORE options
4109 */
4110void fio_options_mem_dupe(struct thread_data *td)
4111{
4112 options_mem_dupe(&td->o, fio_options);
4113
4114 if (td->eo && td->io_ops) {
4115 void *oldeo = td->eo;
4116
4117 td->eo = malloc(td->io_ops->option_struct_size);
4118 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
4119 options_mem_dupe(td->eo, td->io_ops->options);
4120 }
4121}
4122
4123unsigned int fio_get_kb_base(void *data)
4124{
4125 struct thread_options *o = data;
4126 unsigned int kb_base = 0;
4127
4128 /*
4129 * This is a hack... For private options, *data is not holding
4130 * a pointer to the thread_options, but to private data. This means
4131 * we can't safely dereference it, but magic is first so mem wise
4132 * it is valid. But this also means that if the job first sets
4133 * kb_base and expects that to be honored by private options,
4134 * it will be disappointed. We will return the global default
4135 * for this.
4136 */
4137 if (o && o->magic == OPT_MAGIC)
4138 kb_base = o->kb_base;
4139 if (!kb_base)
4140 kb_base = 1024;
4141
4142 return kb_base;
4143}
4144
4145int add_option(struct fio_option *o)
4146{
4147 struct fio_option *__o;
4148 int opt_index = 0;
4149
4150 __o = fio_options;
4151 while (__o->name) {
4152 opt_index++;
4153 __o++;
4154 }
4155
4156 if (opt_index + 1 == FIO_MAX_OPTS) {
4157 log_err("fio: FIO_MAX_OPTS is too small\n");
4158 return 1;
4159 }
4160
4161 memcpy(&fio_options[opt_index], o, sizeof(*o));
4162 fio_options[opt_index + 1].name = NULL;
4163 return 0;
4164}
4165
4166void invalidate_profile_options(const char *prof_name)
4167{
4168 struct fio_option *o;
4169
4170 o = fio_options;
4171 while (o->name) {
4172 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
4173 o->type = FIO_OPT_INVALID;
4174 o->prof_name = NULL;
4175 }
4176 o++;
4177 }
4178}
4179
4180void add_opt_posval(const char *optname, const char *ival, const char *help)
4181{
4182 struct fio_option *o;
4183 unsigned int i;
4184
4185 o = find_option(fio_options, optname);
4186 if (!o)
4187 return;
4188
4189 for (i = 0; i < PARSE_MAX_VP; i++) {
4190 if (o->posval[i].ival)
4191 continue;
4192
4193 o->posval[i].ival = ival;
4194 o->posval[i].help = help;
4195 break;
4196 }
4197}
4198
4199void del_opt_posval(const char *optname, const char *ival)
4200{
4201 struct fio_option *o;
4202 unsigned int i;
4203
4204 o = find_option(fio_options, optname);
4205 if (!o)
4206 return;
4207
4208 for (i = 0; i < PARSE_MAX_VP; i++) {
4209 if (!o->posval[i].ival)
4210 continue;
4211 if (strcmp(o->posval[i].ival, ival))
4212 continue;
4213
4214 o->posval[i].ival = NULL;
4215 o->posval[i].help = NULL;
4216 }
4217}
4218
4219void fio_options_free(struct thread_data *td)
4220{
4221 options_free(fio_options, td);
4222 if (td->eo && td->io_ops && td->io_ops->options) {
4223 options_free(td->io_ops->options, td->eo);
4224 free(td->eo);
4225 td->eo = NULL;
4226 }
4227}
4228
4229struct fio_option *fio_option_find(const char *name)
4230{
4231 return find_option(fio_options, name);
4232}
4233
4234static struct fio_option *find_next_opt(struct thread_options *o,
4235 struct fio_option *from,
4236 unsigned int off1)
4237{
4238 struct fio_option *opt;
4239
4240 if (!from)
4241 from = &fio_options[0];
4242 else
4243 from++;
4244
4245 opt = NULL;
4246 do {
4247 if (off1 == from->off1) {
4248 opt = from;
4249 break;
4250 }
4251 from++;
4252 } while (from->name);
4253
4254 return opt;
4255}
4256
4257static int opt_is_set(struct thread_options *o, struct fio_option *opt)
4258{
4259 unsigned int opt_off, index, offset;
4260
4261 opt_off = opt - &fio_options[0];
4262 index = opt_off / (8 * sizeof(uint64_t));
4263 offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
4264 return (o->set_options[index] & ((uint64_t)1 << offset)) != 0;
4265}
4266
4267int __fio_option_is_set(struct thread_options *o, unsigned int off1)
4268{
4269 struct fio_option *opt, *next;
4270
4271 next = NULL;
4272 while ((opt = find_next_opt(o, next, off1)) != NULL) {
4273 if (opt_is_set(o, opt))
4274 return 1;
4275
4276 next = opt;
4277 }
4278
4279 return 0;
4280}
4281
4282void fio_option_mark_set(struct thread_options *o, struct fio_option *opt)
4283{
4284 unsigned int opt_off, index, offset;
4285
4286 opt_off = opt - &fio_options[0];
4287 index = opt_off / (8 * sizeof(uint64_t));
4288 offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
4289 o->set_options[index] |= (uint64_t)1 << offset;
4290}
fio - Flexible IO Tester