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Don't scramble buffers if compression is enabled
[fio.git] / options.c
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1#include <stdio.h>
2#include <stdlib.h>
3#include <unistd.h>
4#include <ctype.h>
5#include <string.h>
6#include <assert.h>
7#include <libgen.h>
8#include <fcntl.h>
9#include <sys/types.h>
10#include <sys/stat.h>
11
12#include "fio.h"
13#include "verify.h"
14#include "parse.h"
15#include "lib/fls.h"
16#include "options.h"
17
18#include "crc/crc32c.h"
19
20/*
21 * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
22 */
23static char *get_opt_postfix(const char *str)
24{
25 char *p = strstr(str, ":");
26
27 if (!p)
28 return NULL;
29
30 p++;
31 strip_blank_front(&p);
32 strip_blank_end(p);
33 return strdup(p);
34}
35
36static int converthexchartoint(char a)
37{
38 int base;
39
40 switch (a) {
41 case '0'...'9':
42 base = '0';
43 break;
44 case 'A'...'F':
45 base = 'A' - 10;
46 break;
47 case 'a'...'f':
48 base = 'a' - 10;
49 break;
50 default:
51 base = 0;
52 }
53 return a - base;
54}
55
56static int bs_cmp(const void *p1, const void *p2)
57{
58 const struct bssplit *bsp1 = p1;
59 const struct bssplit *bsp2 = p2;
60
61 return bsp1->perc < bsp2->perc;
62}
63
64static int bssplit_ddir(struct thread_options *o, int ddir, char *str)
65{
66 struct bssplit *bssplit;
67 unsigned int i, perc, perc_missing;
68 unsigned int max_bs, min_bs;
69 long long val;
70 char *fname;
71
72 o->bssplit_nr[ddir] = 4;
73 bssplit = malloc(4 * sizeof(struct bssplit));
74
75 i = 0;
76 max_bs = 0;
77 min_bs = -1;
78 while ((fname = strsep(&str, ":")) != NULL) {
79 char *perc_str;
80
81 if (!strlen(fname))
82 break;
83
84 /*
85 * grow struct buffer, if needed
86 */
87 if (i == o->bssplit_nr[ddir]) {
88 o->bssplit_nr[ddir] <<= 1;
89 bssplit = realloc(bssplit, o->bssplit_nr[ddir]
90 * sizeof(struct bssplit));
91 }
92
93 perc_str = strstr(fname, "/");
94 if (perc_str) {
95 *perc_str = '\0';
96 perc_str++;
97 perc = atoi(perc_str);
98 if (perc > 100)
99 perc = 100;
100 else if (!perc)
101 perc = -1;
102 } else
103 perc = -1;
104
105 if (str_to_decimal(fname, &val, 1, o, 0)) {
106 log_err("fio: bssplit conversion failed\n");
107 free(bssplit);
108 return 1;
109 }
110
111 if (val > max_bs)
112 max_bs = val;
113 if (val < min_bs)
114 min_bs = val;
115
116 bssplit[i].bs = val;
117 bssplit[i].perc = perc;
118 i++;
119 }
120
121 o->bssplit_nr[ddir] = i;
122
123 /*
124 * Now check if the percentages add up, and how much is missing
125 */
126 perc = perc_missing = 0;
127 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
128 struct bssplit *bsp = &bssplit[i];
129
130 if (bsp->perc == (unsigned char) -1)
131 perc_missing++;
132 else
133 perc += bsp->perc;
134 }
135
136 if (perc > 100) {
137 log_err("fio: bssplit percentages add to more than 100%%\n");
138 free(bssplit);
139 return 1;
140 }
141 /*
142 * If values didn't have a percentage set, divide the remains between
143 * them.
144 */
145 if (perc_missing) {
146 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
147 struct bssplit *bsp = &bssplit[i];
148
149 if (bsp->perc == (unsigned char) -1)
150 bsp->perc = (100 - perc) / perc_missing;
151 }
152 }
153
154 o->min_bs[ddir] = min_bs;
155 o->max_bs[ddir] = max_bs;
156
157 /*
158 * now sort based on percentages, for ease of lookup
159 */
160 qsort(bssplit, o->bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
161 o->bssplit[ddir] = bssplit;
162 return 0;
163}
164
165static int str_bssplit_cb(void *data, const char *input)
166{
167 struct thread_data *td = data;
168 char *str, *p, *odir, *ddir;
169 int ret = 0;
170
171 if (parse_dryrun())
172 return 0;
173
174 p = str = strdup(input);
175
176 strip_blank_front(&str);
177 strip_blank_end(str);
178
179 odir = strchr(str, ',');
180 if (odir) {
181 ddir = strchr(odir + 1, ',');
182 if (ddir) {
183 ret = bssplit_ddir(&td->o, DDIR_TRIM, ddir + 1);
184 if (!ret)
185 *ddir = '\0';
186 } else {
187 char *op;
188
189 op = strdup(odir + 1);
190 ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
191
192 free(op);
193 }
194 if (!ret)
195 ret = bssplit_ddir(&td->o, DDIR_WRITE, odir + 1);
196 if (!ret) {
197 *odir = '\0';
198 ret = bssplit_ddir(&td->o, DDIR_READ, str);
199 }
200 } else {
201 char *op;
202
203 op = strdup(str);
204 ret = bssplit_ddir(&td->o, DDIR_WRITE, op);
205 free(op);
206
207 if (!ret) {
208 op = strdup(str);
209 ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
210 free(op);
211 }
212 ret = bssplit_ddir(&td->o, DDIR_READ, str);
213 }
214
215 free(p);
216 return ret;
217}
218
219static int str2error(char *str)
220{
221 const char *err[] = { "EPERM", "ENOENT", "ESRCH", "EINTR", "EIO",
222 "ENXIO", "E2BIG", "ENOEXEC", "EBADF",
223 "ECHILD", "EAGAIN", "ENOMEM", "EACCES",
224 "EFAULT", "ENOTBLK", "EBUSY", "EEXIST",
225 "EXDEV", "ENODEV", "ENOTDIR", "EISDIR",
226 "EINVAL", "ENFILE", "EMFILE", "ENOTTY",
227 "ETXTBSY","EFBIG", "ENOSPC", "ESPIPE",
228 "EROFS","EMLINK", "EPIPE", "EDOM", "ERANGE" };
229 int i = 0, num = sizeof(err) / sizeof(void *);
230
231 while (i < num) {
232 if (!strcmp(err[i], str))
233 return i + 1;
234 i++;
235 }
236 return 0;
237}
238
239static int ignore_error_type(struct thread_data *td, int etype, char *str)
240{
241 unsigned int i;
242 int *error;
243 char *fname;
244
245 if (etype >= ERROR_TYPE_CNT) {
246 log_err("Illegal error type\n");
247 return 1;
248 }
249
250 td->o.ignore_error_nr[etype] = 4;
251 error = malloc(4 * sizeof(struct bssplit));
252
253 i = 0;
254 while ((fname = strsep(&str, ":")) != NULL) {
255
256 if (!strlen(fname))
257 break;
258
259 /*
260 * grow struct buffer, if needed
261 */
262 if (i == td->o.ignore_error_nr[etype]) {
263 td->o.ignore_error_nr[etype] <<= 1;
264 error = realloc(error, td->o.ignore_error_nr[etype]
265 * sizeof(int));
266 }
267 if (fname[0] == 'E') {
268 error[i] = str2error(fname);
269 } else {
270 error[i] = atoi(fname);
271 if (error[i] < 0)
272 error[i] = error[i];
273 }
274 if (!error[i]) {
275 log_err("Unknown error %s, please use number value \n",
276 fname);
277 free(error);
278 return 1;
279 }
280 i++;
281 }
282 if (i) {
283 td->o.continue_on_error |= 1 << etype;
284 td->o.ignore_error_nr[etype] = i;
285 td->o.ignore_error[etype] = error;
286 }
287 return 0;
288
289}
290
291static int str_ignore_error_cb(void *data, const char *input)
292{
293 struct thread_data *td = data;
294 char *str, *p, *n;
295 int type = 0, ret = 1;
296
297 if (parse_dryrun())
298 return 0;
299
300 p = str = strdup(input);
301
302 strip_blank_front(&str);
303 strip_blank_end(str);
304
305 while (p) {
306 n = strchr(p, ',');
307 if (n)
308 *n++ = '\0';
309 ret = ignore_error_type(td, type, p);
310 if (ret)
311 break;
312 p = n;
313 type++;
314 }
315 free(str);
316 return ret;
317}
318
319static int str_rw_cb(void *data, const char *str)
320{
321 struct thread_data *td = data;
322 struct thread_options *o = &td->o;
323 char *nr = get_opt_postfix(str);
324
325 if (parse_dryrun())
326 return 0;
327
328 o->ddir_seq_nr = 1;
329 o->ddir_seq_add = 0;
330
331 if (!nr)
332 return 0;
333
334 if (td_random(td))
335 o->ddir_seq_nr = atoi(nr);
336 else {
337 long long val;
338
339 if (str_to_decimal(nr, &val, 1, o, 0)) {
340 log_err("fio: rw postfix parsing failed\n");
341 free(nr);
342 return 1;
343 }
344
345 o->ddir_seq_add = val;
346 }
347
348 free(nr);
349 return 0;
350}
351
352static int str_mem_cb(void *data, const char *mem)
353{
354 struct thread_data *td = data;
355
356 if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP)
357 td->o.mmapfile = get_opt_postfix(mem);
358
359 return 0;
360}
361
362static int fio_clock_source_cb(void *data, const char *str)
363{
364 struct thread_data *td = data;
365
366 fio_clock_source = td->o.clocksource;
367 fio_clock_source_set = 1;
368 fio_clock_init();
369 return 0;
370}
371
372static int str_rwmix_read_cb(void *data, unsigned long long *val)
373{
374 struct thread_data *td = data;
375
376 td->o.rwmix[DDIR_READ] = *val;
377 td->o.rwmix[DDIR_WRITE] = 100 - *val;
378 return 0;
379}
380
381static int str_rwmix_write_cb(void *data, unsigned long long *val)
382{
383 struct thread_data *td = data;
384
385 td->o.rwmix[DDIR_WRITE] = *val;
386 td->o.rwmix[DDIR_READ] = 100 - *val;
387 return 0;
388}
389
390static int str_exitall_cb(void)
391{
392 exitall_on_terminate = 1;
393 return 0;
394}
395
396#ifdef FIO_HAVE_CPU_AFFINITY
397int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu_index)
398{
399 unsigned int i, index, cpus_in_mask;
400 const long max_cpu = cpus_online();
401
402 cpus_in_mask = fio_cpu_count(mask);
403 cpu_index = cpu_index % cpus_in_mask;
404
405 index = 0;
406 for (i = 0; i < max_cpu; i++) {
407 if (!fio_cpu_isset(mask, i))
408 continue;
409
410 if (cpu_index != index)
411 fio_cpu_clear(mask, i);
412
413 index++;
414 }
415
416 return fio_cpu_count(mask);
417}
418
419static int str_cpumask_cb(void *data, unsigned long long *val)
420{
421 struct thread_data *td = data;
422 unsigned int i;
423 long max_cpu;
424 int ret;
425
426 if (parse_dryrun())
427 return 0;
428
429 ret = fio_cpuset_init(&td->o.cpumask);
430 if (ret < 0) {
431 log_err("fio: cpuset_init failed\n");
432 td_verror(td, ret, "fio_cpuset_init");
433 return 1;
434 }
435
436 max_cpu = cpus_online();
437
438 for (i = 0; i < sizeof(int) * 8; i++) {
439 if ((1 << i) & *val) {
440 if (i > max_cpu) {
441 log_err("fio: CPU %d too large (max=%ld)\n", i,
442 max_cpu);
443 return 1;
444 }
445 dprint(FD_PARSE, "set cpu allowed %d\n", i);
446 fio_cpu_set(&td->o.cpumask, i);
447 }
448 }
449
450 td->o.cpumask_set = 1;
451 return 0;
452}
453
454static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
455 const char *input)
456{
457 char *cpu, *str, *p;
458 long max_cpu;
459 int ret = 0;
460
461 ret = fio_cpuset_init(mask);
462 if (ret < 0) {
463 log_err("fio: cpuset_init failed\n");
464 td_verror(td, ret, "fio_cpuset_init");
465 return 1;
466 }
467
468 p = str = strdup(input);
469
470 strip_blank_front(&str);
471 strip_blank_end(str);
472
473 max_cpu = cpus_online();
474
475 while ((cpu = strsep(&str, ",")) != NULL) {
476 char *str2, *cpu2;
477 int icpu, icpu2;
478
479 if (!strlen(cpu))
480 break;
481
482 str2 = cpu;
483 icpu2 = -1;
484 while ((cpu2 = strsep(&str2, "-")) != NULL) {
485 if (!strlen(cpu2))
486 break;
487
488 icpu2 = atoi(cpu2);
489 }
490
491 icpu = atoi(cpu);
492 if (icpu2 == -1)
493 icpu2 = icpu;
494 while (icpu <= icpu2) {
495 if (icpu >= FIO_MAX_CPUS) {
496 log_err("fio: your OS only supports up to"
497 " %d CPUs\n", (int) FIO_MAX_CPUS);
498 ret = 1;
499 break;
500 }
501 if (icpu > max_cpu) {
502 log_err("fio: CPU %d too large (max=%ld)\n",
503 icpu, max_cpu);
504 ret = 1;
505 break;
506 }
507
508 dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
509 fio_cpu_set(mask, icpu);
510 icpu++;
511 }
512 if (ret)
513 break;
514 }
515
516 free(p);
517 if (!ret)
518 td->o.cpumask_set = 1;
519 return ret;
520}
521
522static int str_cpus_allowed_cb(void *data, const char *input)
523{
524 struct thread_data *td = data;
525 int ret;
526
527 if (parse_dryrun())
528 return 0;
529
530 ret = set_cpus_allowed(td, &td->o.cpumask, input);
531 if (!ret)
532 td->o.cpumask_set = 1;
533
534 return ret;
535}
536
537static int str_verify_cpus_allowed_cb(void *data, const char *input)
538{
539 struct thread_data *td = data;
540 int ret;
541
542 ret = set_cpus_allowed(td, &td->o.verify_cpumask, input);
543 if (!ret)
544 td->o.verify_cpumask_set = 1;
545
546 return ret;
547}
548#endif
549
550#ifdef CONFIG_LIBNUMA
551static int str_numa_cpunodes_cb(void *data, char *input)
552{
553 struct thread_data *td = data;
554
555 if (parse_dryrun())
556 return 0;
557
558 /* numa_parse_nodestring() parses a character string list
559 * of nodes into a bit mask. The bit mask is allocated by
560 * numa_allocate_nodemask(), so it should be freed by
561 * numa_free_nodemask().
562 */
563 td->o.numa_cpunodesmask = numa_parse_nodestring(input);
564 if (td->o.numa_cpunodesmask == NULL) {
565 log_err("fio: numa_parse_nodestring failed\n");
566 td_verror(td, 1, "str_numa_cpunodes_cb");
567 return 1;
568 }
569
570 td->o.numa_cpumask_set = 1;
571 return 0;
572}
573
574static int str_numa_mpol_cb(void *data, char *input)
575{
576 struct thread_data *td = data;
577 const char * const policy_types[] =
578 { "default", "prefer", "bind", "interleave", "local", NULL };
579 int i;
580 char *nodelist;
581
582 if (parse_dryrun())
583 return 0;
584
585 nodelist = strchr(input, ':');
586 if (nodelist) {
587 /* NUL-terminate mode */
588 *nodelist++ = '\0';
589 }
590
591 for (i = 0; i <= MPOL_LOCAL; i++) {
592 if (!strcmp(input, policy_types[i])) {
593 td->o.numa_mem_mode = i;
594 break;
595 }
596 }
597 if (i > MPOL_LOCAL) {
598 log_err("fio: memory policy should be: default, prefer, bind, interleave, local\n");
599 goto out;
600 }
601
602 switch (td->o.numa_mem_mode) {
603 case MPOL_PREFERRED:
604 /*
605 * Insist on a nodelist of one node only
606 */
607 if (nodelist) {
608 char *rest = nodelist;
609 while (isdigit(*rest))
610 rest++;
611 if (*rest) {
612 log_err("fio: one node only for \'prefer\'\n");
613 goto out;
614 }
615 } else {
616 log_err("fio: one node is needed for \'prefer\'\n");
617 goto out;
618 }
619 break;
620 case MPOL_INTERLEAVE:
621 /*
622 * Default to online nodes with memory if no nodelist
623 */
624 if (!nodelist)
625 nodelist = strdup("all");
626 break;
627 case MPOL_LOCAL:
628 case MPOL_DEFAULT:
629 /*
630 * Don't allow a nodelist
631 */
632 if (nodelist) {
633 log_err("fio: NO nodelist for \'local\'\n");
634 goto out;
635 }
636 break;
637 case MPOL_BIND:
638 /*
639 * Insist on a nodelist
640 */
641 if (!nodelist) {
642 log_err("fio: a nodelist is needed for \'bind\'\n");
643 goto out;
644 }
645 break;
646 }
647
648
649 /* numa_parse_nodestring() parses a character string list
650 * of nodes into a bit mask. The bit mask is allocated by
651 * numa_allocate_nodemask(), so it should be freed by
652 * numa_free_nodemask().
653 */
654 switch (td->o.numa_mem_mode) {
655 case MPOL_PREFERRED:
656 td->o.numa_mem_prefer_node = atoi(nodelist);
657 break;
658 case MPOL_INTERLEAVE:
659 case MPOL_BIND:
660 td->o.numa_memnodesmask = numa_parse_nodestring(nodelist);
661 if (td->o.numa_memnodesmask == NULL) {
662 log_err("fio: numa_parse_nodestring failed\n");
663 td_verror(td, 1, "str_numa_memnodes_cb");
664 return 1;
665 }
666 break;
667 case MPOL_LOCAL:
668 case MPOL_DEFAULT:
669 default:
670 break;
671 }
672
673 td->o.numa_memmask_set = 1;
674 return 0;
675
676out:
677 return 1;
678}
679#endif
680
681static int str_fst_cb(void *data, const char *str)
682{
683 struct thread_data *td = data;
684 char *nr = get_opt_postfix(str);
685
686 td->file_service_nr = 1;
687 if (nr) {
688 td->file_service_nr = atoi(nr);
689 free(nr);
690 }
691
692 return 0;
693}
694
695#ifdef CONFIG_SYNC_FILE_RANGE
696static int str_sfr_cb(void *data, const char *str)
697{
698 struct thread_data *td = data;
699 char *nr = get_opt_postfix(str);
700
701 td->sync_file_range_nr = 1;
702 if (nr) {
703 td->sync_file_range_nr = atoi(nr);
704 free(nr);
705 }
706
707 return 0;
708}
709#endif
710
711static int str_random_distribution_cb(void *data, const char *str)
712{
713 struct thread_data *td = data;
714 double val;
715 char *nr;
716
717 if (parse_dryrun())
718 return 0;
719
720 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
721 val = 1.1;
722 else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
723 val = 0.2;
724 else
725 return 0;
726
727 nr = get_opt_postfix(str);
728 if (nr && !str_to_float(nr, &val)) {
729 log_err("fio: random postfix parsing failed\n");
730 free(nr);
731 return 1;
732 }
733
734 free(nr);
735
736 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
737 if (val == 1.00) {
738 log_err("fio: zipf theta must different than 1.0\n");
739 return 1;
740 }
741 td->o.zipf_theta.u.f = val;
742 } else {
743 if (val <= 0.00 || val >= 1.00) {
744 log_err("fio: pareto input out of range (0 < input < 1.0)\n");
745 return 1;
746 }
747 td->o.pareto_h.u.f = val;
748 }
749
750 return 0;
751}
752
753/*
754 * Return next name in the string. Files are separated with ':'. If the ':'
755 * is escaped with a '\', then that ':' is part of the filename and does not
756 * indicate a new file.
757 */
758static char *get_next_name(char **ptr)
759{
760 char *str = *ptr;
761 char *p, *start;
762
763 if (!str || !strlen(str))
764 return NULL;
765
766 start = str;
767 do {
768 /*
769 * No colon, we are done
770 */
771 p = strchr(str, ':');
772 if (!p) {
773 *ptr = NULL;
774 break;
775 }
776
777 /*
778 * We got a colon, but it's the first character. Skip and
779 * continue
780 */
781 if (p == start) {
782 str = ++start;
783 continue;
784 }
785
786 if (*(p - 1) != '\\') {
787 *p = '\0';
788 *ptr = p + 1;
789 break;
790 }
791
792 memmove(p - 1, p, strlen(p) + 1);
793 str = p;
794 } while (1);
795
796 return start;
797}
798
799
800static int get_max_name_idx(char *input)
801{
802 unsigned int cur_idx;
803 char *str, *p;
804
805 p = str = strdup(input);
806 for (cur_idx = 0; ; cur_idx++)
807 if (get_next_name(&str) == NULL)
808 break;
809
810 free(p);
811 return cur_idx;
812}
813
814/*
815 * Returns the directory at the index, indexes > entires will be
816 * assigned via modulo division of the index
817 */
818int set_name_idx(char *target, char *input, int index)
819{
820 unsigned int cur_idx;
821 int len;
822 char *fname, *str, *p;
823
824 p = str = strdup(input);
825
826 index %= get_max_name_idx(input);
827 for (cur_idx = 0; cur_idx <= index; cur_idx++)
828 fname = get_next_name(&str);
829
830 len = sprintf(target, "%s/", fname);
831 free(p);
832
833 return len;
834}
835
836static int str_filename_cb(void *data, const char *input)
837{
838 struct thread_data *td = data;
839 char *fname, *str, *p;
840
841 p = str = strdup(input);
842
843 strip_blank_front(&str);
844 strip_blank_end(str);
845
846 if (!td->files_index)
847 td->o.nr_files = 0;
848
849 while ((fname = get_next_name(&str)) != NULL) {
850 if (!strlen(fname))
851 break;
852 add_file(td, fname, 0, 1);
853 }
854
855 free(p);
856 return 0;
857}
858
859static int str_directory_cb(void *data, const char fio_unused *unused)
860{
861 struct thread_data *td = data;
862 struct stat sb;
863 char *dirname, *str, *p;
864 int ret = 0;
865
866 if (parse_dryrun())
867 return 0;
868
869 p = str = strdup(td->o.directory);
870 while ((dirname = get_next_name(&str)) != NULL) {
871 if (lstat(dirname, &sb) < 0) {
872 ret = errno;
873
874 log_err("fio: %s is not a directory\n", dirname);
875 td_verror(td, ret, "lstat");
876 goto out;
877 }
878 if (!S_ISDIR(sb.st_mode)) {
879 log_err("fio: %s is not a directory\n", dirname);
880 ret = 1;
881 goto out;
882 }
883 }
884
885out:
886 free(p);
887 return ret;
888}
889
890static int str_lockfile_cb(void *data, const char fio_unused *str)
891{
892 struct thread_data *td = data;
893
894 if (td->files_index) {
895 log_err("fio: lockfile= option must precede filename=\n");
896 return 1;
897 }
898
899 return 0;
900}
901
902static int str_opendir_cb(void *data, const char fio_unused *str)
903{
904 struct thread_data *td = data;
905
906 if (parse_dryrun())
907 return 0;
908
909 if (!td->files_index)
910 td->o.nr_files = 0;
911
912 return add_dir_files(td, td->o.opendir);
913}
914
915static int pattern_cb(char *pattern, unsigned int max_size,
916 const char *input, unsigned int *pattern_bytes)
917{
918 long off;
919 int i = 0, j = 0, len, k, base = 10;
920 uint32_t pattern_length;
921 char *loc1, *loc2;
922
923 loc1 = strstr(input, "0x");
924 loc2 = strstr(input, "0X");
925 if (loc1 || loc2)
926 base = 16;
927 off = strtol(input, NULL, base);
928 if (off != LONG_MAX || errno != ERANGE) {
929 while (off) {
930 pattern[i] = off & 0xff;
931 off >>= 8;
932 i++;
933 }
934 } else {
935 len = strlen(input);
936 k = len - 1;
937 if (base == 16) {
938 if (loc1)
939 j = loc1 - input + 2;
940 else
941 j = loc2 - input + 2;
942 } else
943 return 1;
944 if (len - j < max_size * 2) {
945 while (k >= j) {
946 off = converthexchartoint(input[k--]);
947 if (k >= j)
948 off += (converthexchartoint(input[k--])
949 * 16);
950 pattern[i++] = (char) off;
951 }
952 }
953 }
954
955 /*
956 * Fill the pattern all the way to the end. This greatly reduces
957 * the number of memcpy's we have to do when verifying the IO.
958 */
959 pattern_length = i;
960 while (i > 1 && i * 2 <= max_size) {
961 memcpy(&pattern[i], &pattern[0], i);
962 i *= 2;
963 }
964
965 /*
966 * Fill remainder, if the pattern multiple ends up not being
967 * max_size.
968 */
969 while (i > 1 && i < max_size) {
970 unsigned int b = min(pattern_length, max_size - i);
971
972 memcpy(&pattern[i], &pattern[0], b);
973 i += b;
974 }
975
976 if (i == 1) {
977 /*
978 * The code in verify_io_u_pattern assumes a single byte pattern
979 * fills the whole verify pattern buffer.
980 */
981 memset(pattern, pattern[0], max_size);
982 }
983
984 *pattern_bytes = i;
985 return 0;
986}
987
988static int str_buffer_pattern_cb(void *data, const char *input)
989{
990 struct thread_data *td = data;
991 int ret;
992
993 ret = pattern_cb(td->o.buffer_pattern, MAX_PATTERN_SIZE, input,
994 &td->o.buffer_pattern_bytes);
995
996 if (!ret) {
997 td->o.refill_buffers = 0;
998 td->o.scramble_buffers = 0;
999 td->o.zero_buffers = 0;
1000 }
1001
1002 return ret;
1003}
1004
1005static int str_verify_pattern_cb(void *data, const char *input)
1006{
1007 struct thread_data *td = data;
1008 int ret;
1009
1010 ret = pattern_cb(td->o.verify_pattern, MAX_PATTERN_SIZE, input,
1011 &td->o.verify_pattern_bytes);
1012
1013 /*
1014 * VERIFY_META could already be set
1015 */
1016 if (!ret && td->o.verify == VERIFY_NONE)
1017 td->o.verify = VERIFY_PATTERN;
1018
1019 return ret;
1020}
1021
1022static int str_gtod_reduce_cb(void *data, int *il)
1023{
1024 struct thread_data *td = data;
1025 int val = *il;
1026
1027 td->o.disable_lat = !!val;
1028 td->o.disable_clat = !!val;
1029 td->o.disable_slat = !!val;
1030 td->o.disable_bw = !!val;
1031 td->o.clat_percentiles = !val;
1032 if (val)
1033 td->tv_cache_mask = 63;
1034
1035 return 0;
1036}
1037
1038static int str_gtod_cpu_cb(void *data, long long *il)
1039{
1040 struct thread_data *td = data;
1041 int val = *il;
1042
1043 td->o.gtod_cpu = val;
1044 td->o.gtod_offload = 1;
1045 return 0;
1046}
1047
1048static int str_size_cb(void *data, unsigned long long *__val)
1049{
1050 struct thread_data *td = data;
1051 unsigned long long v = *__val;
1052
1053 if (parse_is_percent(v)) {
1054 td->o.size = 0;
1055 td->o.size_percent = -1ULL - v;
1056 } else
1057 td->o.size = v;
1058
1059 return 0;
1060}
1061
1062static int rw_verify(struct fio_option *o, void *data)
1063{
1064 struct thread_data *td = data;
1065
1066 if (read_only && td_write(td)) {
1067 log_err("fio: job <%s> has write bit set, but fio is in"
1068 " read-only mode\n", td->o.name);
1069 return 1;
1070 }
1071
1072 return 0;
1073}
1074
1075static int gtod_cpu_verify(struct fio_option *o, void *data)
1076{
1077#ifndef FIO_HAVE_CPU_AFFINITY
1078 struct thread_data *td = data;
1079
1080 if (td->o.gtod_cpu) {
1081 log_err("fio: platform must support CPU affinity for"
1082 "gettimeofday() offloading\n");
1083 return 1;
1084 }
1085#endif
1086
1087 return 0;
1088}
1089
1090/*
1091 * Option grouping
1092 */
1093static struct opt_group fio_opt_groups[] = {
1094 {
1095 .name = "General",
1096 .mask = FIO_OPT_C_GENERAL,
1097 },
1098 {
1099 .name = "I/O",
1100 .mask = FIO_OPT_C_IO,
1101 },
1102 {
1103 .name = "File",
1104 .mask = FIO_OPT_C_FILE,
1105 },
1106 {
1107 .name = "Statistics",
1108 .mask = FIO_OPT_C_STAT,
1109 },
1110 {
1111 .name = "Logging",
1112 .mask = FIO_OPT_C_LOG,
1113 },
1114 {
1115 .name = "Profiles",
1116 .mask = FIO_OPT_C_PROFILE,
1117 },
1118 {
1119 .name = NULL,
1120 },
1121};
1122
1123static struct opt_group *__opt_group_from_mask(struct opt_group *ogs, unsigned int *mask,
1124 unsigned int inv_mask)
1125{
1126 struct opt_group *og;
1127 int i;
1128
1129 if (*mask == inv_mask || !*mask)
1130 return NULL;
1131
1132 for (i = 0; ogs[i].name; i++) {
1133 og = &ogs[i];
1134
1135 if (*mask & og->mask) {
1136 *mask &= ~(og->mask);
1137 return og;
1138 }
1139 }
1140
1141 return NULL;
1142}
1143
1144struct opt_group *opt_group_from_mask(unsigned int *mask)
1145{
1146 return __opt_group_from_mask(fio_opt_groups, mask, FIO_OPT_C_INVALID);
1147}
1148
1149static struct opt_group fio_opt_cat_groups[] = {
1150 {
1151 .name = "Latency profiling",
1152 .mask = FIO_OPT_G_LATPROF,
1153 },
1154 {
1155 .name = "Rate",
1156 .mask = FIO_OPT_G_RATE,
1157 },
1158 {
1159 .name = "Zone",
1160 .mask = FIO_OPT_G_ZONE,
1161 },
1162 {
1163 .name = "Read/write mix",
1164 .mask = FIO_OPT_G_RWMIX,
1165 },
1166 {
1167 .name = "Verify",
1168 .mask = FIO_OPT_G_VERIFY,
1169 },
1170 {
1171 .name = "Trim",
1172 .mask = FIO_OPT_G_TRIM,
1173 },
1174 {
1175 .name = "I/O Logging",
1176 .mask = FIO_OPT_G_IOLOG,
1177 },
1178 {
1179 .name = "I/O Depth",
1180 .mask = FIO_OPT_G_IO_DEPTH,
1181 },
1182 {
1183 .name = "I/O Flow",
1184 .mask = FIO_OPT_G_IO_FLOW,
1185 },
1186 {
1187 .name = "Description",
1188 .mask = FIO_OPT_G_DESC,
1189 },
1190 {
1191 .name = "Filename",
1192 .mask = FIO_OPT_G_FILENAME,
1193 },
1194 {
1195 .name = "General I/O",
1196 .mask = FIO_OPT_G_IO_BASIC,
1197 },
1198 {
1199 .name = "Cgroups",
1200 .mask = FIO_OPT_G_CGROUP,
1201 },
1202 {
1203 .name = "Runtime",
1204 .mask = FIO_OPT_G_RUNTIME,
1205 },
1206 {
1207 .name = "Process",
1208 .mask = FIO_OPT_G_PROCESS,
1209 },
1210 {
1211 .name = "Job credentials / priority",
1212 .mask = FIO_OPT_G_CRED,
1213 },
1214 {
1215 .name = "Clock settings",
1216 .mask = FIO_OPT_G_CLOCK,
1217 },
1218 {
1219 .name = "I/O Type",
1220 .mask = FIO_OPT_G_IO_TYPE,
1221 },
1222 {
1223 .name = "I/O Thinktime",
1224 .mask = FIO_OPT_G_THINKTIME,
1225 },
1226 {
1227 .name = "Randomizations",
1228 .mask = FIO_OPT_G_RANDOM,
1229 },
1230 {
1231 .name = "I/O buffers",
1232 .mask = FIO_OPT_G_IO_BUF,
1233 },
1234 {
1235 .name = "Tiobench profile",
1236 .mask = FIO_OPT_G_TIOBENCH,
1237 },
1238
1239 {
1240 .name = NULL,
1241 }
1242};
1243
1244struct opt_group *opt_group_cat_from_mask(unsigned int *mask)
1245{
1246 return __opt_group_from_mask(fio_opt_cat_groups, mask, FIO_OPT_G_INVALID);
1247}
1248
1249/*
1250 * Map of job/command line options
1251 */
1252struct fio_option fio_options[FIO_MAX_OPTS] = {
1253 {
1254 .name = "description",
1255 .lname = "Description of job",
1256 .type = FIO_OPT_STR_STORE,
1257 .off1 = td_var_offset(description),
1258 .help = "Text job description",
1259 .category = FIO_OPT_C_GENERAL,
1260 .group = FIO_OPT_G_DESC,
1261 },
1262 {
1263 .name = "name",
1264 .lname = "Job name",
1265 .type = FIO_OPT_STR_STORE,
1266 .off1 = td_var_offset(name),
1267 .help = "Name of this job",
1268 .category = FIO_OPT_C_GENERAL,
1269 .group = FIO_OPT_G_DESC,
1270 },
1271 {
1272 .name = "filename",
1273 .lname = "Filename(s)",
1274 .type = FIO_OPT_STR_STORE,
1275 .off1 = td_var_offset(filename),
1276 .cb = str_filename_cb,
1277 .prio = -1, /* must come after "directory" */
1278 .help = "File(s) to use for the workload",
1279 .category = FIO_OPT_C_FILE,
1280 .group = FIO_OPT_G_FILENAME,
1281 },
1282 {
1283 .name = "directory",
1284 .lname = "Directory",
1285 .type = FIO_OPT_STR_STORE,
1286 .off1 = td_var_offset(directory),
1287 .cb = str_directory_cb,
1288 .help = "Directory to store files in",
1289 .category = FIO_OPT_C_FILE,
1290 .group = FIO_OPT_G_FILENAME,
1291 },
1292 {
1293 .name = "filename_format",
1294 .type = FIO_OPT_STR_STORE,
1295 .off1 = td_var_offset(filename_format),
1296 .prio = -1, /* must come after "directory" */
1297 .help = "Override default $jobname.$jobnum.$filenum naming",
1298 .def = "$jobname.$jobnum.$filenum",
1299 .category = FIO_OPT_C_FILE,
1300 .group = FIO_OPT_G_FILENAME,
1301 },
1302 {
1303 .name = "lockfile",
1304 .lname = "Lockfile",
1305 .type = FIO_OPT_STR,
1306 .off1 = td_var_offset(file_lock_mode),
1307 .help = "Lock file when doing IO to it",
1308 .prio = 1,
1309 .parent = "filename",
1310 .hide = 0,
1311 .def = "none",
1312 .cb = str_lockfile_cb,
1313 .category = FIO_OPT_C_FILE,
1314 .group = FIO_OPT_G_FILENAME,
1315 .posval = {
1316 { .ival = "none",
1317 .oval = FILE_LOCK_NONE,
1318 .help = "No file locking",
1319 },
1320 { .ival = "exclusive",
1321 .oval = FILE_LOCK_EXCLUSIVE,
1322 .help = "Exclusive file lock",
1323 },
1324 {
1325 .ival = "readwrite",
1326 .oval = FILE_LOCK_READWRITE,
1327 .help = "Read vs write lock",
1328 },
1329 },
1330 },
1331 {
1332 .name = "opendir",
1333 .lname = "Open directory",
1334 .type = FIO_OPT_STR_STORE,
1335 .off1 = td_var_offset(opendir),
1336 .cb = str_opendir_cb,
1337 .help = "Recursively add files from this directory and down",
1338 .category = FIO_OPT_C_FILE,
1339 .group = FIO_OPT_G_FILENAME,
1340 },
1341 {
1342 .name = "rw",
1343 .lname = "Read/write",
1344 .alias = "readwrite",
1345 .type = FIO_OPT_STR,
1346 .cb = str_rw_cb,
1347 .off1 = td_var_offset(td_ddir),
1348 .help = "IO direction",
1349 .def = "read",
1350 .verify = rw_verify,
1351 .category = FIO_OPT_C_IO,
1352 .group = FIO_OPT_G_IO_BASIC,
1353 .posval = {
1354 { .ival = "read",
1355 .oval = TD_DDIR_READ,
1356 .help = "Sequential read",
1357 },
1358 { .ival = "write",
1359 .oval = TD_DDIR_WRITE,
1360 .help = "Sequential write",
1361 },
1362 { .ival = "trim",
1363 .oval = TD_DDIR_TRIM,
1364 .help = "Sequential trim",
1365 },
1366 { .ival = "randread",
1367 .oval = TD_DDIR_RANDREAD,
1368 .help = "Random read",
1369 },
1370 { .ival = "randwrite",
1371 .oval = TD_DDIR_RANDWRITE,
1372 .help = "Random write",
1373 },
1374 { .ival = "randtrim",
1375 .oval = TD_DDIR_RANDTRIM,
1376 .help = "Random trim",
1377 },
1378 { .ival = "rw",
1379 .oval = TD_DDIR_RW,
1380 .help = "Sequential read and write mix",
1381 },
1382 { .ival = "readwrite",
1383 .oval = TD_DDIR_RW,
1384 .help = "Sequential read and write mix",
1385 },
1386 { .ival = "randrw",
1387 .oval = TD_DDIR_RANDRW,
1388 .help = "Random read and write mix"
1389 },
1390 },
1391 },
1392 {
1393 .name = "rw_sequencer",
1394 .lname = "RW Sequencer",
1395 .type = FIO_OPT_STR,
1396 .off1 = td_var_offset(rw_seq),
1397 .help = "IO offset generator modifier",
1398 .def = "sequential",
1399 .category = FIO_OPT_C_IO,
1400 .group = FIO_OPT_G_IO_BASIC,
1401 .posval = {
1402 { .ival = "sequential",
1403 .oval = RW_SEQ_SEQ,
1404 .help = "Generate sequential offsets",
1405 },
1406 { .ival = "identical",
1407 .oval = RW_SEQ_IDENT,
1408 .help = "Generate identical offsets",
1409 },
1410 },
1411 },
1412
1413 {
1414 .name = "ioengine",
1415 .lname = "IO Engine",
1416 .type = FIO_OPT_STR_STORE,
1417 .off1 = td_var_offset(ioengine),
1418 .help = "IO engine to use",
1419 .def = FIO_PREFERRED_ENGINE,
1420 .category = FIO_OPT_C_IO,
1421 .group = FIO_OPT_G_IO_BASIC,
1422 .posval = {
1423 { .ival = "sync",
1424 .help = "Use read/write",
1425 },
1426 { .ival = "psync",
1427 .help = "Use pread/pwrite",
1428 },
1429 { .ival = "vsync",
1430 .help = "Use readv/writev",
1431 },
1432#ifdef CONFIG_PWRITEV
1433 { .ival = "pvsync",
1434 .help = "Use preadv/pwritev",
1435 },
1436#endif
1437#ifdef CONFIG_LIBAIO
1438 { .ival = "libaio",
1439 .help = "Linux native asynchronous IO",
1440 },
1441#endif
1442#ifdef CONFIG_POSIXAIO
1443 { .ival = "posixaio",
1444 .help = "POSIX asynchronous IO",
1445 },
1446#endif
1447#ifdef CONFIG_SOLARISAIO
1448 { .ival = "solarisaio",
1449 .help = "Solaris native asynchronous IO",
1450 },
1451#endif
1452#ifdef CONFIG_WINDOWSAIO
1453 { .ival = "windowsaio",
1454 .help = "Windows native asynchronous IO"
1455 },
1456#endif
1457#ifdef CONFIG_RBD
1458 { .ival = "rbd",
1459 .help = "Rados Block Device asynchronous IO"
1460 },
1461#endif
1462 { .ival = "mmap",
1463 .help = "Memory mapped IO"
1464 },
1465#ifdef CONFIG_LINUX_SPLICE
1466 { .ival = "splice",
1467 .help = "splice/vmsplice based IO",
1468 },
1469 { .ival = "netsplice",
1470 .help = "splice/vmsplice to/from the network",
1471 },
1472#endif
1473#ifdef FIO_HAVE_SGIO
1474 { .ival = "sg",
1475 .help = "SCSI generic v3 IO",
1476 },
1477#endif
1478 { .ival = "null",
1479 .help = "Testing engine (no data transfer)",
1480 },
1481 { .ival = "net",
1482 .help = "Network IO",
1483 },
1484 { .ival = "cpuio",
1485 .help = "CPU cycle burner engine",
1486 },
1487#ifdef CONFIG_GUASI
1488 { .ival = "guasi",
1489 .help = "GUASI IO engine",
1490 },
1491#endif
1492#ifdef FIO_HAVE_BINJECT
1493 { .ival = "binject",
1494 .help = "binject direct inject block engine",
1495 },
1496#endif
1497#ifdef CONFIG_RDMA
1498 { .ival = "rdma",
1499 .help = "RDMA IO engine",
1500 },
1501#endif
1502#ifdef CONFIG_FUSION_AW
1503 { .ival = "fusion-aw-sync",
1504 .help = "Fusion-io atomic write engine",
1505 },
1506#endif
1507#ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
1508 { .ival = "e4defrag",
1509 .help = "ext4 defrag engine",
1510 },
1511#endif
1512#ifdef CONFIG_LINUX_FALLOCATE
1513 { .ival = "falloc",
1514 .help = "fallocate() file based engine",
1515 },
1516#endif
1517 { .ival = "external",
1518 .help = "Load external engine (append name)",
1519 },
1520 },
1521 },
1522 {
1523 .name = "iodepth",
1524 .lname = "IO Depth",
1525 .type = FIO_OPT_INT,
1526 .off1 = td_var_offset(iodepth),
1527 .help = "Number of IO buffers to keep in flight",
1528 .minval = 1,
1529 .interval = 1,
1530 .def = "1",
1531 .category = FIO_OPT_C_IO,
1532 .group = FIO_OPT_G_IO_BASIC,
1533 },
1534 {
1535 .name = "iodepth_batch",
1536 .lname = "IO Depth batch",
1537 .alias = "iodepth_batch_submit",
1538 .type = FIO_OPT_INT,
1539 .off1 = td_var_offset(iodepth_batch),
1540 .help = "Number of IO buffers to submit in one go",
1541 .parent = "iodepth",
1542 .hide = 1,
1543 .minval = 1,
1544 .interval = 1,
1545 .def = "1",
1546 .category = FIO_OPT_C_IO,
1547 .group = FIO_OPT_G_IO_BASIC,
1548 },
1549 {
1550 .name = "iodepth_batch_complete",
1551 .lname = "IO Depth batch complete",
1552 .type = FIO_OPT_INT,
1553 .off1 = td_var_offset(iodepth_batch_complete),
1554 .help = "Number of IO buffers to retrieve in one go",
1555 .parent = "iodepth",
1556 .hide = 1,
1557 .minval = 0,
1558 .interval = 1,
1559 .def = "1",
1560 .category = FIO_OPT_C_IO,
1561 .group = FIO_OPT_G_IO_BASIC,
1562 },
1563 {
1564 .name = "iodepth_low",
1565 .lname = "IO Depth batch low",
1566 .type = FIO_OPT_INT,
1567 .off1 = td_var_offset(iodepth_low),
1568 .help = "Low water mark for queuing depth",
1569 .parent = "iodepth",
1570 .hide = 1,
1571 .interval = 1,
1572 .category = FIO_OPT_C_IO,
1573 .group = FIO_OPT_G_IO_BASIC,
1574 },
1575 {
1576 .name = "size",
1577 .lname = "Size",
1578 .type = FIO_OPT_STR_VAL,
1579 .cb = str_size_cb,
1580 .help = "Total size of device or files",
1581 .interval = 1024 * 1024,
1582 .category = FIO_OPT_C_IO,
1583 .group = FIO_OPT_G_INVALID,
1584 },
1585 {
1586 .name = "fill_device",
1587 .lname = "Fill device",
1588 .alias = "fill_fs",
1589 .type = FIO_OPT_BOOL,
1590 .off1 = td_var_offset(fill_device),
1591 .help = "Write until an ENOSPC error occurs",
1592 .def = "0",
1593 .category = FIO_OPT_C_FILE,
1594 .group = FIO_OPT_G_INVALID,
1595 },
1596 {
1597 .name = "filesize",
1598 .lname = "File size",
1599 .type = FIO_OPT_STR_VAL,
1600 .off1 = td_var_offset(file_size_low),
1601 .off2 = td_var_offset(file_size_high),
1602 .minval = 1,
1603 .help = "Size of individual files",
1604 .interval = 1024 * 1024,
1605 .category = FIO_OPT_C_FILE,
1606 .group = FIO_OPT_G_INVALID,
1607 },
1608 {
1609 .name = "offset",
1610 .lname = "IO offset",
1611 .alias = "fileoffset",
1612 .type = FIO_OPT_STR_VAL,
1613 .off1 = td_var_offset(start_offset),
1614 .help = "Start IO from this offset",
1615 .def = "0",
1616 .interval = 1024 * 1024,
1617 .category = FIO_OPT_C_IO,
1618 .group = FIO_OPT_G_INVALID,
1619 },
1620 {
1621 .name = "offset_increment",
1622 .lname = "IO offset increment",
1623 .type = FIO_OPT_STR_VAL,
1624 .off1 = td_var_offset(offset_increment),
1625 .help = "What is the increment from one offset to the next",
1626 .parent = "offset",
1627 .hide = 1,
1628 .def = "0",
1629 .interval = 1024 * 1024,
1630 .category = FIO_OPT_C_IO,
1631 .group = FIO_OPT_G_INVALID,
1632 },
1633 {
1634 .name = "number_ios",
1635 .lname = "Number of IOs to perform",
1636 .type = FIO_OPT_STR_VAL,
1637 .off1 = td_var_offset(number_ios),
1638 .help = "Force job completion of this number of IOs",
1639 .def = "0",
1640 .category = FIO_OPT_C_IO,
1641 .group = FIO_OPT_G_INVALID,
1642 },
1643 {
1644 .name = "bs",
1645 .lname = "Block size",
1646 .alias = "blocksize",
1647 .type = FIO_OPT_INT,
1648 .off1 = td_var_offset(bs[DDIR_READ]),
1649 .off2 = td_var_offset(bs[DDIR_WRITE]),
1650 .off3 = td_var_offset(bs[DDIR_TRIM]),
1651 .minval = 1,
1652 .help = "Block size unit",
1653 .def = "4k",
1654 .parent = "rw",
1655 .hide = 1,
1656 .interval = 512,
1657 .category = FIO_OPT_C_IO,
1658 .group = FIO_OPT_G_INVALID,
1659 },
1660 {
1661 .name = "ba",
1662 .lname = "Block size align",
1663 .alias = "blockalign",
1664 .type = FIO_OPT_INT,
1665 .off1 = td_var_offset(ba[DDIR_READ]),
1666 .off2 = td_var_offset(ba[DDIR_WRITE]),
1667 .off3 = td_var_offset(ba[DDIR_TRIM]),
1668 .minval = 1,
1669 .help = "IO block offset alignment",
1670 .parent = "rw",
1671 .hide = 1,
1672 .interval = 512,
1673 .category = FIO_OPT_C_IO,
1674 .group = FIO_OPT_G_INVALID,
1675 },
1676 {
1677 .name = "bsrange",
1678 .lname = "Block size range",
1679 .alias = "blocksize_range",
1680 .type = FIO_OPT_RANGE,
1681 .off1 = td_var_offset(min_bs[DDIR_READ]),
1682 .off2 = td_var_offset(max_bs[DDIR_READ]),
1683 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
1684 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
1685 .off5 = td_var_offset(min_bs[DDIR_TRIM]),
1686 .off6 = td_var_offset(max_bs[DDIR_TRIM]),
1687 .minval = 1,
1688 .help = "Set block size range (in more detail than bs)",
1689 .parent = "rw",
1690 .hide = 1,
1691 .interval = 4096,
1692 .category = FIO_OPT_C_IO,
1693 .group = FIO_OPT_G_INVALID,
1694 },
1695 {
1696 .name = "bssplit",
1697 .lname = "Block size split",
1698 .type = FIO_OPT_STR,
1699 .cb = str_bssplit_cb,
1700 .help = "Set a specific mix of block sizes",
1701 .parent = "rw",
1702 .hide = 1,
1703 .category = FIO_OPT_C_IO,
1704 .group = FIO_OPT_G_INVALID,
1705 },
1706 {
1707 .name = "bs_unaligned",
1708 .lname = "Block size unaligned",
1709 .alias = "blocksize_unaligned",
1710 .type = FIO_OPT_STR_SET,
1711 .off1 = td_var_offset(bs_unaligned),
1712 .help = "Don't sector align IO buffer sizes",
1713 .parent = "rw",
1714 .hide = 1,
1715 .category = FIO_OPT_C_IO,
1716 .group = FIO_OPT_G_INVALID,
1717 },
1718 {
1719 .name = "bs_is_seq_rand",
1720 .lname = "Block size division is seq/random (not read/write)",
1721 .type = FIO_OPT_BOOL,
1722 .off1 = td_var_offset(bs_is_seq_rand),
1723 .help = "Consider any blocksize setting to be sequential,ramdom",
1724 .def = "0",
1725 .parent = "blocksize",
1726 .category = FIO_OPT_C_IO,
1727 .group = FIO_OPT_G_INVALID,
1728 },
1729 {
1730 .name = "randrepeat",
1731 .lname = "Random repeatable",
1732 .type = FIO_OPT_BOOL,
1733 .off1 = td_var_offset(rand_repeatable),
1734 .help = "Use repeatable random IO pattern",
1735 .def = "1",
1736 .parent = "rw",
1737 .hide = 1,
1738 .category = FIO_OPT_C_IO,
1739 .group = FIO_OPT_G_RANDOM,
1740 },
1741 {
1742 .name = "randseed",
1743 .lname = "The random generator seed",
1744 .type = FIO_OPT_STR_VAL,
1745 .off1 = td_var_offset(rand_seed),
1746 .help = "Set the random generator seed value",
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_BOOL,
1755 .off1 = td_var_offset(use_os_rand),
1756 .help = "Set to use OS random generator",
1757 .def = "0",
1758 .parent = "rw",
1759 .hide = 1,
1760 .category = FIO_OPT_C_IO,
1761 .group = FIO_OPT_G_RANDOM,
1762 },
1763 {
1764 .name = "norandommap",
1765 .lname = "No randommap",
1766 .type = FIO_OPT_STR_SET,
1767 .off1 = td_var_offset(norandommap),
1768 .help = "Accept potential duplicate random blocks",
1769 .parent = "rw",
1770 .hide = 1,
1771 .hide_on_set = 1,
1772 .category = FIO_OPT_C_IO,
1773 .group = FIO_OPT_G_RANDOM,
1774 },
1775 {
1776 .name = "softrandommap",
1777 .lname = "Soft randommap",
1778 .type = FIO_OPT_BOOL,
1779 .off1 = td_var_offset(softrandommap),
1780 .help = "Set norandommap if randommap allocation fails",
1781 .parent = "norandommap",
1782 .hide = 1,
1783 .def = "0",
1784 .category = FIO_OPT_C_IO,
1785 .group = FIO_OPT_G_RANDOM,
1786 },
1787 {
1788 .name = "random_generator",
1789 .type = FIO_OPT_STR,
1790 .off1 = td_var_offset(random_generator),
1791 .help = "Type of random number generator to use",
1792 .def = "tausworthe",
1793 .posval = {
1794 { .ival = "tausworthe",
1795 .oval = FIO_RAND_GEN_TAUSWORTHE,
1796 .help = "Strong Tausworthe generator",
1797 },
1798 { .ival = "lfsr",
1799 .oval = FIO_RAND_GEN_LFSR,
1800 .help = "Variable length LFSR",
1801 },
1802 },
1803 .category = FIO_OPT_C_IO,
1804 .group = FIO_OPT_G_RANDOM,
1805 },
1806 {
1807 .name = "random_distribution",
1808 .type = FIO_OPT_STR,
1809 .off1 = td_var_offset(random_distribution),
1810 .cb = str_random_distribution_cb,
1811 .help = "Random offset distribution generator",
1812 .def = "random",
1813 .posval = {
1814 { .ival = "random",
1815 .oval = FIO_RAND_DIST_RANDOM,
1816 .help = "Completely random",
1817 },
1818 { .ival = "zipf",
1819 .oval = FIO_RAND_DIST_ZIPF,
1820 .help = "Zipf distribution",
1821 },
1822 { .ival = "pareto",
1823 .oval = FIO_RAND_DIST_PARETO,
1824 .help = "Pareto distribution",
1825 },
1826 },
1827 .category = FIO_OPT_C_IO,
1828 .group = FIO_OPT_G_RANDOM,
1829 },
1830 {
1831 .name = "percentage_random",
1832 .lname = "Percentage Random",
1833 .type = FIO_OPT_INT,
1834 .off1 = td_var_offset(perc_rand[DDIR_READ]),
1835 .off2 = td_var_offset(perc_rand[DDIR_WRITE]),
1836 .off3 = td_var_offset(perc_rand[DDIR_TRIM]),
1837 .maxval = 100,
1838 .help = "Percentage of seq/random mix that should be random",
1839 .def = "100,100,100",
1840 .interval = 5,
1841 .inverse = "percentage_sequential",
1842 .category = FIO_OPT_C_IO,
1843 .group = FIO_OPT_G_RANDOM,
1844 },
1845 {
1846 .name = "percentage_sequential",
1847 .lname = "Percentage Sequential",
1848 .type = FIO_OPT_DEPRECATED,
1849 .category = FIO_OPT_C_IO,
1850 .group = FIO_OPT_G_RANDOM,
1851 },
1852 {
1853 .name = "allrandrepeat",
1854 .type = FIO_OPT_BOOL,
1855 .off1 = td_var_offset(allrand_repeatable),
1856 .help = "Use repeatable random numbers for everything",
1857 .def = "0",
1858 .category = FIO_OPT_C_IO,
1859 .group = FIO_OPT_G_RANDOM,
1860 },
1861 {
1862 .name = "nrfiles",
1863 .lname = "Number of files",
1864 .alias = "nr_files",
1865 .type = FIO_OPT_INT,
1866 .off1 = td_var_offset(nr_files),
1867 .help = "Split job workload between this number of files",
1868 .def = "1",
1869 .interval = 1,
1870 .category = FIO_OPT_C_FILE,
1871 .group = FIO_OPT_G_INVALID,
1872 },
1873 {
1874 .name = "openfiles",
1875 .lname = "Number of open files",
1876 .type = FIO_OPT_INT,
1877 .off1 = td_var_offset(open_files),
1878 .help = "Number of files to keep open at the same time",
1879 .category = FIO_OPT_C_FILE,
1880 .group = FIO_OPT_G_INVALID,
1881 },
1882 {
1883 .name = "file_service_type",
1884 .lname = "File service type",
1885 .type = FIO_OPT_STR,
1886 .cb = str_fst_cb,
1887 .off1 = td_var_offset(file_service_type),
1888 .help = "How to select which file to service next",
1889 .def = "roundrobin",
1890 .category = FIO_OPT_C_FILE,
1891 .group = FIO_OPT_G_INVALID,
1892 .posval = {
1893 { .ival = "random",
1894 .oval = FIO_FSERVICE_RANDOM,
1895 .help = "Choose a file at random",
1896 },
1897 { .ival = "roundrobin",
1898 .oval = FIO_FSERVICE_RR,
1899 .help = "Round robin select files",
1900 },
1901 { .ival = "sequential",
1902 .oval = FIO_FSERVICE_SEQ,
1903 .help = "Finish one file before moving to the next",
1904 },
1905 },
1906 .parent = "nrfiles",
1907 .hide = 1,
1908 },
1909#ifdef CONFIG_POSIX_FALLOCATE
1910 {
1911 .name = "fallocate",
1912 .lname = "Fallocate",
1913 .type = FIO_OPT_STR,
1914 .off1 = td_var_offset(fallocate_mode),
1915 .help = "Whether pre-allocation is performed when laying out files",
1916 .def = "posix",
1917 .category = FIO_OPT_C_FILE,
1918 .group = FIO_OPT_G_INVALID,
1919 .posval = {
1920 { .ival = "none",
1921 .oval = FIO_FALLOCATE_NONE,
1922 .help = "Do not pre-allocate space",
1923 },
1924 { .ival = "posix",
1925 .oval = FIO_FALLOCATE_POSIX,
1926 .help = "Use posix_fallocate()",
1927 },
1928#ifdef CONFIG_LINUX_FALLOCATE
1929 { .ival = "keep",
1930 .oval = FIO_FALLOCATE_KEEP_SIZE,
1931 .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
1932 },
1933#endif
1934 /* Compatibility with former boolean values */
1935 { .ival = "0",
1936 .oval = FIO_FALLOCATE_NONE,
1937 .help = "Alias for 'none'",
1938 },
1939 { .ival = "1",
1940 .oval = FIO_FALLOCATE_POSIX,
1941 .help = "Alias for 'posix'",
1942 },
1943 },
1944 },
1945#endif /* CONFIG_POSIX_FALLOCATE */
1946 {
1947 .name = "fadvise_hint",
1948 .lname = "Fadvise hint",
1949 .type = FIO_OPT_BOOL,
1950 .off1 = td_var_offset(fadvise_hint),
1951 .help = "Use fadvise() to advise the kernel on IO pattern",
1952 .def = "1",
1953 .category = FIO_OPT_C_FILE,
1954 .group = FIO_OPT_G_INVALID,
1955 },
1956 {
1957 .name = "fsync",
1958 .lname = "Fsync",
1959 .type = FIO_OPT_INT,
1960 .off1 = td_var_offset(fsync_blocks),
1961 .help = "Issue fsync for writes every given number of blocks",
1962 .def = "0",
1963 .interval = 1,
1964 .category = FIO_OPT_C_FILE,
1965 .group = FIO_OPT_G_INVALID,
1966 },
1967 {
1968 .name = "fdatasync",
1969 .lname = "Fdatasync",
1970 .type = FIO_OPT_INT,
1971 .off1 = td_var_offset(fdatasync_blocks),
1972 .help = "Issue fdatasync for writes every given number of blocks",
1973 .def = "0",
1974 .interval = 1,
1975 .category = FIO_OPT_C_FILE,
1976 .group = FIO_OPT_G_INVALID,
1977 },
1978 {
1979 .name = "write_barrier",
1980 .lname = "Write barrier",
1981 .type = FIO_OPT_INT,
1982 .off1 = td_var_offset(barrier_blocks),
1983 .help = "Make every Nth write a barrier write",
1984 .def = "0",
1985 .interval = 1,
1986 .category = FIO_OPT_C_IO,
1987 .group = FIO_OPT_G_INVALID,
1988 },
1989#ifdef CONFIG_SYNC_FILE_RANGE
1990 {
1991 .name = "sync_file_range",
1992 .lname = "Sync file range",
1993 .posval = {
1994 { .ival = "wait_before",
1995 .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
1996 .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
1997 .orval = 1,
1998 },
1999 { .ival = "write",
2000 .oval = SYNC_FILE_RANGE_WRITE,
2001 .help = "SYNC_FILE_RANGE_WRITE",
2002 .orval = 1,
2003 },
2004 {
2005 .ival = "wait_after",
2006 .oval = SYNC_FILE_RANGE_WAIT_AFTER,
2007 .help = "SYNC_FILE_RANGE_WAIT_AFTER",
2008 .orval = 1,
2009 },
2010 },
2011 .type = FIO_OPT_STR_MULTI,
2012 .cb = str_sfr_cb,
2013 .off1 = td_var_offset(sync_file_range),
2014 .help = "Use sync_file_range()",
2015 .category = FIO_OPT_C_FILE,
2016 .group = FIO_OPT_G_INVALID,
2017 },
2018#endif
2019 {
2020 .name = "direct",
2021 .lname = "Direct I/O",
2022 .type = FIO_OPT_BOOL,
2023 .off1 = td_var_offset(odirect),
2024 .help = "Use O_DIRECT IO (negates buffered)",
2025 .def = "0",
2026 .inverse = "buffered",
2027 .category = FIO_OPT_C_IO,
2028 .group = FIO_OPT_G_IO_TYPE,
2029 },
2030 {
2031 .name = "atomic",
2032 .lname = "Atomic I/O",
2033 .type = FIO_OPT_BOOL,
2034 .off1 = td_var_offset(oatomic),
2035 .help = "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
2036 .def = "0",
2037 .category = FIO_OPT_C_IO,
2038 .group = FIO_OPT_G_IO_TYPE,
2039 },
2040 {
2041 .name = "buffered",
2042 .lname = "Buffered I/O",
2043 .type = FIO_OPT_BOOL,
2044 .off1 = td_var_offset(odirect),
2045 .neg = 1,
2046 .help = "Use buffered IO (negates direct)",
2047 .def = "1",
2048 .inverse = "direct",
2049 .category = FIO_OPT_C_IO,
2050 .group = FIO_OPT_G_IO_TYPE,
2051 },
2052 {
2053 .name = "overwrite",
2054 .lname = "Overwrite",
2055 .type = FIO_OPT_BOOL,
2056 .off1 = td_var_offset(overwrite),
2057 .help = "When writing, set whether to overwrite current data",
2058 .def = "0",
2059 .category = FIO_OPT_C_FILE,
2060 .group = FIO_OPT_G_INVALID,
2061 },
2062 {
2063 .name = "loops",
2064 .lname = "Loops",
2065 .type = FIO_OPT_INT,
2066 .off1 = td_var_offset(loops),
2067 .help = "Number of times to run the job",
2068 .def = "1",
2069 .interval = 1,
2070 .category = FIO_OPT_C_GENERAL,
2071 .group = FIO_OPT_G_RUNTIME,
2072 },
2073 {
2074 .name = "numjobs",
2075 .lname = "Number of jobs",
2076 .type = FIO_OPT_INT,
2077 .off1 = td_var_offset(numjobs),
2078 .help = "Duplicate this job this many times",
2079 .def = "1",
2080 .interval = 1,
2081 .category = FIO_OPT_C_GENERAL,
2082 .group = FIO_OPT_G_RUNTIME,
2083 },
2084 {
2085 .name = "startdelay",
2086 .lname = "Start delay",
2087 .type = FIO_OPT_STR_VAL_TIME,
2088 .off1 = td_var_offset(start_delay),
2089 .off2 = td_var_offset(start_delay_high),
2090 .help = "Only start job when this period has passed",
2091 .def = "0",
2092 .is_seconds = 1,
2093 .category = FIO_OPT_C_GENERAL,
2094 .group = FIO_OPT_G_RUNTIME,
2095 },
2096 {
2097 .name = "runtime",
2098 .lname = "Runtime",
2099 .alias = "timeout",
2100 .type = FIO_OPT_STR_VAL_TIME,
2101 .off1 = td_var_offset(timeout),
2102 .help = "Stop workload when this amount of time has passed",
2103 .def = "0",
2104 .is_seconds = 1,
2105 .category = FIO_OPT_C_GENERAL,
2106 .group = FIO_OPT_G_RUNTIME,
2107 },
2108 {
2109 .name = "time_based",
2110 .lname = "Time based",
2111 .type = FIO_OPT_STR_SET,
2112 .off1 = td_var_offset(time_based),
2113 .help = "Keep running until runtime/timeout is met",
2114 .category = FIO_OPT_C_GENERAL,
2115 .group = FIO_OPT_G_RUNTIME,
2116 },
2117 {
2118 .name = "verify_only",
2119 .lname = "Verify only",
2120 .type = FIO_OPT_STR_SET,
2121 .off1 = td_var_offset(verify_only),
2122 .help = "Verifies previously written data is still valid",
2123 .category = FIO_OPT_C_GENERAL,
2124 .group = FIO_OPT_G_RUNTIME,
2125 },
2126 {
2127 .name = "ramp_time",
2128 .lname = "Ramp time",
2129 .type = FIO_OPT_STR_VAL_TIME,
2130 .off1 = td_var_offset(ramp_time),
2131 .help = "Ramp up time before measuring performance",
2132 .is_seconds = 1,
2133 .category = FIO_OPT_C_GENERAL,
2134 .group = FIO_OPT_G_RUNTIME,
2135 },
2136 {
2137 .name = "clocksource",
2138 .lname = "Clock source",
2139 .type = FIO_OPT_STR,
2140 .cb = fio_clock_source_cb,
2141 .off1 = td_var_offset(clocksource),
2142 .help = "What type of timing source to use",
2143 .category = FIO_OPT_C_GENERAL,
2144 .group = FIO_OPT_G_CLOCK,
2145 .posval = {
2146#ifdef CONFIG_GETTIMEOFDAY
2147 { .ival = "gettimeofday",
2148 .oval = CS_GTOD,
2149 .help = "Use gettimeofday(2) for timing",
2150 },
2151#endif
2152#ifdef CONFIG_CLOCK_GETTIME
2153 { .ival = "clock_gettime",
2154 .oval = CS_CGETTIME,
2155 .help = "Use clock_gettime(2) for timing",
2156 },
2157#endif
2158#ifdef ARCH_HAVE_CPU_CLOCK
2159 { .ival = "cpu",
2160 .oval = CS_CPUCLOCK,
2161 .help = "Use CPU private clock",
2162 },
2163#endif
2164 },
2165 },
2166 {
2167 .name = "mem",
2168 .alias = "iomem",
2169 .lname = "I/O Memory",
2170 .type = FIO_OPT_STR,
2171 .cb = str_mem_cb,
2172 .off1 = td_var_offset(mem_type),
2173 .help = "Backing type for IO buffers",
2174 .def = "malloc",
2175 .category = FIO_OPT_C_IO,
2176 .group = FIO_OPT_G_INVALID,
2177 .posval = {
2178 { .ival = "malloc",
2179 .oval = MEM_MALLOC,
2180 .help = "Use malloc(3) for IO buffers",
2181 },
2182 { .ival = "shm",
2183 .oval = MEM_SHM,
2184 .help = "Use shared memory segments for IO buffers",
2185 },
2186#ifdef FIO_HAVE_HUGETLB
2187 { .ival = "shmhuge",
2188 .oval = MEM_SHMHUGE,
2189 .help = "Like shm, but use huge pages",
2190 },
2191#endif
2192 { .ival = "mmap",
2193 .oval = MEM_MMAP,
2194 .help = "Use mmap(2) (file or anon) for IO buffers",
2195 },
2196#ifdef FIO_HAVE_HUGETLB
2197 { .ival = "mmaphuge",
2198 .oval = MEM_MMAPHUGE,
2199 .help = "Like mmap, but use huge pages",
2200 },
2201#endif
2202 },
2203 },
2204 {
2205 .name = "iomem_align",
2206 .alias = "mem_align",
2207 .lname = "I/O memory alignment",
2208 .type = FIO_OPT_INT,
2209 .off1 = td_var_offset(mem_align),
2210 .minval = 0,
2211 .help = "IO memory buffer offset alignment",
2212 .def = "0",
2213 .parent = "iomem",
2214 .hide = 1,
2215 .category = FIO_OPT_C_IO,
2216 .group = FIO_OPT_G_INVALID,
2217 },
2218 {
2219 .name = "verify",
2220 .lname = "Verify",
2221 .type = FIO_OPT_STR,
2222 .off1 = td_var_offset(verify),
2223 .help = "Verify data written",
2224 .def = "0",
2225 .category = FIO_OPT_C_IO,
2226 .group = FIO_OPT_G_VERIFY,
2227 .posval = {
2228 { .ival = "0",
2229 .oval = VERIFY_NONE,
2230 .help = "Don't do IO verification",
2231 },
2232 { .ival = "md5",
2233 .oval = VERIFY_MD5,
2234 .help = "Use md5 checksums for verification",
2235 },
2236 { .ival = "crc64",
2237 .oval = VERIFY_CRC64,
2238 .help = "Use crc64 checksums for verification",
2239 },
2240 { .ival = "crc32",
2241 .oval = VERIFY_CRC32,
2242 .help = "Use crc32 checksums for verification",
2243 },
2244 { .ival = "crc32c-intel",
2245 .oval = VERIFY_CRC32C,
2246 .help = "Use crc32c checksums for verification (hw assisted, if available)",
2247 },
2248 { .ival = "crc32c",
2249 .oval = VERIFY_CRC32C,
2250 .help = "Use crc32c checksums for verification (hw assisted, if available)",
2251 },
2252 { .ival = "crc16",
2253 .oval = VERIFY_CRC16,
2254 .help = "Use crc16 checksums for verification",
2255 },
2256 { .ival = "crc7",
2257 .oval = VERIFY_CRC7,
2258 .help = "Use crc7 checksums for verification",
2259 },
2260 { .ival = "sha1",
2261 .oval = VERIFY_SHA1,
2262 .help = "Use sha1 checksums for verification",
2263 },
2264 { .ival = "sha256",
2265 .oval = VERIFY_SHA256,
2266 .help = "Use sha256 checksums for verification",
2267 },
2268 { .ival = "sha512",
2269 .oval = VERIFY_SHA512,
2270 .help = "Use sha512 checksums for verification",
2271 },
2272 { .ival = "xxhash",
2273 .oval = VERIFY_XXHASH,
2274 .help = "Use xxhash checksums for verification",
2275 },
2276 { .ival = "meta",
2277 .oval = VERIFY_META,
2278 .help = "Use io information",
2279 },
2280 {
2281 .ival = "null",
2282 .oval = VERIFY_NULL,
2283 .help = "Pretend to verify",
2284 },
2285 },
2286 },
2287 {
2288 .name = "do_verify",
2289 .lname = "Perform verify step",
2290 .type = FIO_OPT_BOOL,
2291 .off1 = td_var_offset(do_verify),
2292 .help = "Run verification stage after write",
2293 .def = "1",
2294 .parent = "verify",
2295 .hide = 1,
2296 .category = FIO_OPT_C_IO,
2297 .group = FIO_OPT_G_VERIFY,
2298 },
2299 {
2300 .name = "verifysort",
2301 .lname = "Verify sort",
2302 .type = FIO_OPT_BOOL,
2303 .off1 = td_var_offset(verifysort),
2304 .help = "Sort written verify blocks for read back",
2305 .def = "1",
2306 .parent = "verify",
2307 .hide = 1,
2308 .category = FIO_OPT_C_IO,
2309 .group = FIO_OPT_G_VERIFY,
2310 },
2311 {
2312 .name = "verifysort_nr",
2313 .type = FIO_OPT_INT,
2314 .off1 = td_var_offset(verifysort_nr),
2315 .help = "Pre-load and sort verify blocks for a read workload",
2316 .minval = 0,
2317 .maxval = 131072,
2318 .def = "1024",
2319 .parent = "verify",
2320 .category = FIO_OPT_C_IO,
2321 .group = FIO_OPT_G_VERIFY,
2322 },
2323 {
2324 .name = "verify_interval",
2325 .lname = "Verify interval",
2326 .type = FIO_OPT_INT,
2327 .off1 = td_var_offset(verify_interval),
2328 .minval = 2 * sizeof(struct verify_header),
2329 .help = "Store verify buffer header every N bytes",
2330 .parent = "verify",
2331 .hide = 1,
2332 .interval = 2 * sizeof(struct verify_header),
2333 .category = FIO_OPT_C_IO,
2334 .group = FIO_OPT_G_VERIFY,
2335 },
2336 {
2337 .name = "verify_offset",
2338 .lname = "Verify offset",
2339 .type = FIO_OPT_INT,
2340 .help = "Offset verify header location by N bytes",
2341 .off1 = td_var_offset(verify_offset),
2342 .minval = sizeof(struct verify_header),
2343 .parent = "verify",
2344 .hide = 1,
2345 .category = FIO_OPT_C_IO,
2346 .group = FIO_OPT_G_VERIFY,
2347 },
2348 {
2349 .name = "verify_pattern",
2350 .lname = "Verify pattern",
2351 .type = FIO_OPT_STR,
2352 .cb = str_verify_pattern_cb,
2353 .help = "Fill pattern for IO buffers",
2354 .parent = "verify",
2355 .hide = 1,
2356 .category = FIO_OPT_C_IO,
2357 .group = FIO_OPT_G_VERIFY,
2358 },
2359 {
2360 .name = "verify_fatal",
2361 .lname = "Verify fatal",
2362 .type = FIO_OPT_BOOL,
2363 .off1 = td_var_offset(verify_fatal),
2364 .def = "0",
2365 .help = "Exit on a single verify failure, don't continue",
2366 .parent = "verify",
2367 .hide = 1,
2368 .category = FIO_OPT_C_IO,
2369 .group = FIO_OPT_G_VERIFY,
2370 },
2371 {
2372 .name = "verify_dump",
2373 .lname = "Verify dump",
2374 .type = FIO_OPT_BOOL,
2375 .off1 = td_var_offset(verify_dump),
2376 .def = "0",
2377 .help = "Dump contents of good and bad blocks on failure",
2378 .parent = "verify",
2379 .hide = 1,
2380 .category = FIO_OPT_C_IO,
2381 .group = FIO_OPT_G_VERIFY,
2382 },
2383 {
2384 .name = "verify_async",
2385 .lname = "Verify asynchronously",
2386 .type = FIO_OPT_INT,
2387 .off1 = td_var_offset(verify_async),
2388 .def = "0",
2389 .help = "Number of async verifier threads to use",
2390 .parent = "verify",
2391 .hide = 1,
2392 .category = FIO_OPT_C_IO,
2393 .group = FIO_OPT_G_VERIFY,
2394 },
2395 {
2396 .name = "verify_backlog",
2397 .lname = "Verify backlog",
2398 .type = FIO_OPT_STR_VAL,
2399 .off1 = td_var_offset(verify_backlog),
2400 .help = "Verify after this number of blocks are written",
2401 .parent = "verify",
2402 .hide = 1,
2403 .category = FIO_OPT_C_IO,
2404 .group = FIO_OPT_G_VERIFY,
2405 },
2406 {
2407 .name = "verify_backlog_batch",
2408 .lname = "Verify backlog batch",
2409 .type = FIO_OPT_INT,
2410 .off1 = td_var_offset(verify_batch),
2411 .help = "Verify this number of IO blocks",
2412 .parent = "verify",
2413 .hide = 1,
2414 .category = FIO_OPT_C_IO,
2415 .group = FIO_OPT_G_VERIFY,
2416 },
2417#ifdef FIO_HAVE_CPU_AFFINITY
2418 {
2419 .name = "verify_async_cpus",
2420 .lname = "Async verify CPUs",
2421 .type = FIO_OPT_STR,
2422 .cb = str_verify_cpus_allowed_cb,
2423 .help = "Set CPUs allowed for async verify threads",
2424 .parent = "verify_async",
2425 .hide = 1,
2426 .category = FIO_OPT_C_IO,
2427 .group = FIO_OPT_G_VERIFY,
2428 },
2429#endif
2430 {
2431 .name = "experimental_verify",
2432 .off1 = td_var_offset(experimental_verify),
2433 .type = FIO_OPT_BOOL,
2434 .help = "Enable experimental verification",
2435 .category = FIO_OPT_C_IO,
2436 .group = FIO_OPT_G_VERIFY,
2437 },
2438#ifdef FIO_HAVE_TRIM
2439 {
2440 .name = "trim_percentage",
2441 .lname = "Trim percentage",
2442 .type = FIO_OPT_INT,
2443 .off1 = td_var_offset(trim_percentage),
2444 .minval = 0,
2445 .maxval = 100,
2446 .help = "Number of verify blocks to discard/trim",
2447 .parent = "verify",
2448 .def = "0",
2449 .interval = 1,
2450 .hide = 1,
2451 .category = FIO_OPT_C_IO,
2452 .group = FIO_OPT_G_TRIM,
2453 },
2454 {
2455 .name = "trim_verify_zero",
2456 .lname = "Verify trim zero",
2457 .type = FIO_OPT_BOOL,
2458 .help = "Verify that trim/discarded blocks are returned as zeroes",
2459 .off1 = td_var_offset(trim_zero),
2460 .parent = "trim_percentage",
2461 .hide = 1,
2462 .def = "1",
2463 .category = FIO_OPT_C_IO,
2464 .group = FIO_OPT_G_TRIM,
2465 },
2466 {
2467 .name = "trim_backlog",
2468 .lname = "Trim backlog",
2469 .type = FIO_OPT_STR_VAL,
2470 .off1 = td_var_offset(trim_backlog),
2471 .help = "Trim after this number of blocks are written",
2472 .parent = "trim_percentage",
2473 .hide = 1,
2474 .interval = 1,
2475 .category = FIO_OPT_C_IO,
2476 .group = FIO_OPT_G_TRIM,
2477 },
2478 {
2479 .name = "trim_backlog_batch",
2480 .lname = "Trim backlog batch",
2481 .type = FIO_OPT_INT,
2482 .off1 = td_var_offset(trim_batch),
2483 .help = "Trim this number of IO blocks",
2484 .parent = "trim_percentage",
2485 .hide = 1,
2486 .interval = 1,
2487 .category = FIO_OPT_C_IO,
2488 .group = FIO_OPT_G_TRIM,
2489 },
2490#endif
2491 {
2492 .name = "write_iolog",
2493 .lname = "Write I/O log",
2494 .type = FIO_OPT_STR_STORE,
2495 .off1 = td_var_offset(write_iolog_file),
2496 .help = "Store IO pattern to file",
2497 .category = FIO_OPT_C_IO,
2498 .group = FIO_OPT_G_IOLOG,
2499 },
2500 {
2501 .name = "read_iolog",
2502 .lname = "Read I/O log",
2503 .type = FIO_OPT_STR_STORE,
2504 .off1 = td_var_offset(read_iolog_file),
2505 .help = "Playback IO pattern from file",
2506 .category = FIO_OPT_C_IO,
2507 .group = FIO_OPT_G_IOLOG,
2508 },
2509 {
2510 .name = "replay_no_stall",
2511 .lname = "Don't stall on replay",
2512 .type = FIO_OPT_BOOL,
2513 .off1 = td_var_offset(no_stall),
2514 .def = "0",
2515 .parent = "read_iolog",
2516 .hide = 1,
2517 .help = "Playback IO pattern file as fast as possible without stalls",
2518 .category = FIO_OPT_C_IO,
2519 .group = FIO_OPT_G_IOLOG,
2520 },
2521 {
2522 .name = "replay_redirect",
2523 .lname = "Redirect device for replay",
2524 .type = FIO_OPT_STR_STORE,
2525 .off1 = td_var_offset(replay_redirect),
2526 .parent = "read_iolog",
2527 .hide = 1,
2528 .help = "Replay all I/O onto this device, regardless of trace device",
2529 .category = FIO_OPT_C_IO,
2530 .group = FIO_OPT_G_IOLOG,
2531 },
2532 {
2533 .name = "exec_prerun",
2534 .lname = "Pre-execute runnable",
2535 .type = FIO_OPT_STR_STORE,
2536 .off1 = td_var_offset(exec_prerun),
2537 .help = "Execute this file prior to running job",
2538 .category = FIO_OPT_C_GENERAL,
2539 .group = FIO_OPT_G_INVALID,
2540 },
2541 {
2542 .name = "exec_postrun",
2543 .lname = "Post-execute runnable",
2544 .type = FIO_OPT_STR_STORE,
2545 .off1 = td_var_offset(exec_postrun),
2546 .help = "Execute this file after running job",
2547 .category = FIO_OPT_C_GENERAL,
2548 .group = FIO_OPT_G_INVALID,
2549 },
2550#ifdef FIO_HAVE_IOSCHED_SWITCH
2551 {
2552 .name = "ioscheduler",
2553 .lname = "I/O scheduler",
2554 .type = FIO_OPT_STR_STORE,
2555 .off1 = td_var_offset(ioscheduler),
2556 .help = "Use this IO scheduler on the backing device",
2557 .category = FIO_OPT_C_FILE,
2558 .group = FIO_OPT_G_INVALID,
2559 },
2560#endif
2561 {
2562 .name = "zonesize",
2563 .lname = "Zone size",
2564 .type = FIO_OPT_STR_VAL,
2565 .off1 = td_var_offset(zone_size),
2566 .help = "Amount of data to read per zone",
2567 .def = "0",
2568 .interval = 1024 * 1024,
2569 .category = FIO_OPT_C_IO,
2570 .group = FIO_OPT_G_ZONE,
2571 },
2572 {
2573 .name = "zonerange",
2574 .lname = "Zone range",
2575 .type = FIO_OPT_STR_VAL,
2576 .off1 = td_var_offset(zone_range),
2577 .help = "Give size of an IO zone",
2578 .def = "0",
2579 .interval = 1024 * 1024,
2580 .category = FIO_OPT_C_IO,
2581 .group = FIO_OPT_G_ZONE,
2582 },
2583 {
2584 .name = "zoneskip",
2585 .lname = "Zone skip",
2586 .type = FIO_OPT_STR_VAL,
2587 .off1 = td_var_offset(zone_skip),
2588 .help = "Space between IO zones",
2589 .def = "0",
2590 .interval = 1024 * 1024,
2591 .category = FIO_OPT_C_IO,
2592 .group = FIO_OPT_G_ZONE,
2593 },
2594 {
2595 .name = "lockmem",
2596 .lname = "Lock memory",
2597 .type = FIO_OPT_STR_VAL,
2598 .off1 = td_var_offset(lockmem),
2599 .help = "Lock down this amount of memory (per worker)",
2600 .def = "0",
2601 .interval = 1024 * 1024,
2602 .category = FIO_OPT_C_GENERAL,
2603 .group = FIO_OPT_G_INVALID,
2604 },
2605 {
2606 .name = "rwmixread",
2607 .lname = "Read/write mix read",
2608 .type = FIO_OPT_INT,
2609 .cb = str_rwmix_read_cb,
2610 .maxval = 100,
2611 .help = "Percentage of mixed workload that is reads",
2612 .def = "50",
2613 .interval = 5,
2614 .inverse = "rwmixwrite",
2615 .category = FIO_OPT_C_IO,
2616 .group = FIO_OPT_G_RWMIX,
2617 },
2618 {
2619 .name = "rwmixwrite",
2620 .lname = "Read/write mix write",
2621 .type = FIO_OPT_INT,
2622 .cb = str_rwmix_write_cb,
2623 .maxval = 100,
2624 .help = "Percentage of mixed workload that is writes",
2625 .def = "50",
2626 .interval = 5,
2627 .inverse = "rwmixread",
2628 .category = FIO_OPT_C_IO,
2629 .group = FIO_OPT_G_RWMIX,
2630 },
2631 {
2632 .name = "rwmixcycle",
2633 .lname = "Read/write mix cycle",
2634 .type = FIO_OPT_DEPRECATED,
2635 .category = FIO_OPT_C_IO,
2636 .group = FIO_OPT_G_RWMIX,
2637 },
2638 {
2639 .name = "nice",
2640 .lname = "Nice",
2641 .type = FIO_OPT_INT,
2642 .off1 = td_var_offset(nice),
2643 .help = "Set job CPU nice value",
2644 .minval = -19,
2645 .maxval = 20,
2646 .def = "0",
2647 .interval = 1,
2648 .category = FIO_OPT_C_GENERAL,
2649 .group = FIO_OPT_G_CRED,
2650 },
2651#ifdef FIO_HAVE_IOPRIO
2652 {
2653 .name = "prio",
2654 .lname = "I/O nice priority",
2655 .type = FIO_OPT_INT,
2656 .off1 = td_var_offset(ioprio),
2657 .help = "Set job IO priority value",
2658 .minval = 0,
2659 .maxval = 7,
2660 .interval = 1,
2661 .category = FIO_OPT_C_GENERAL,
2662 .group = FIO_OPT_G_CRED,
2663 },
2664 {
2665 .name = "prioclass",
2666 .lname = "I/O nice priority class",
2667 .type = FIO_OPT_INT,
2668 .off1 = td_var_offset(ioprio_class),
2669 .help = "Set job IO priority class",
2670 .minval = 0,
2671 .maxval = 3,
2672 .interval = 1,
2673 .category = FIO_OPT_C_GENERAL,
2674 .group = FIO_OPT_G_CRED,
2675 },
2676#endif
2677 {
2678 .name = "thinktime",
2679 .lname = "Thinktime",
2680 .type = FIO_OPT_INT,
2681 .off1 = td_var_offset(thinktime),
2682 .help = "Idle time between IO buffers (usec)",
2683 .def = "0",
2684 .category = FIO_OPT_C_IO,
2685 .group = FIO_OPT_G_THINKTIME,
2686 },
2687 {
2688 .name = "thinktime_spin",
2689 .lname = "Thinktime spin",
2690 .type = FIO_OPT_INT,
2691 .off1 = td_var_offset(thinktime_spin),
2692 .help = "Start think time by spinning this amount (usec)",
2693 .def = "0",
2694 .parent = "thinktime",
2695 .hide = 1,
2696 .category = FIO_OPT_C_IO,
2697 .group = FIO_OPT_G_THINKTIME,
2698 },
2699 {
2700 .name = "thinktime_blocks",
2701 .lname = "Thinktime blocks",
2702 .type = FIO_OPT_INT,
2703 .off1 = td_var_offset(thinktime_blocks),
2704 .help = "IO buffer period between 'thinktime'",
2705 .def = "1",
2706 .parent = "thinktime",
2707 .hide = 1,
2708 .category = FIO_OPT_C_IO,
2709 .group = FIO_OPT_G_THINKTIME,
2710 },
2711 {
2712 .name = "rate",
2713 .lname = "I/O rate",
2714 .type = FIO_OPT_INT,
2715 .off1 = td_var_offset(rate[DDIR_READ]),
2716 .off2 = td_var_offset(rate[DDIR_WRITE]),
2717 .off3 = td_var_offset(rate[DDIR_TRIM]),
2718 .help = "Set bandwidth rate",
2719 .category = FIO_OPT_C_IO,
2720 .group = FIO_OPT_G_RATE,
2721 },
2722 {
2723 .name = "ratemin",
2724 .lname = "I/O min rate",
2725 .type = FIO_OPT_INT,
2726 .off1 = td_var_offset(ratemin[DDIR_READ]),
2727 .off2 = td_var_offset(ratemin[DDIR_WRITE]),
2728 .off3 = td_var_offset(ratemin[DDIR_TRIM]),
2729 .help = "Job must meet this rate or it will be shutdown",
2730 .parent = "rate",
2731 .hide = 1,
2732 .category = FIO_OPT_C_IO,
2733 .group = FIO_OPT_G_RATE,
2734 },
2735 {
2736 .name = "rate_iops",
2737 .lname = "I/O rate IOPS",
2738 .type = FIO_OPT_INT,
2739 .off1 = td_var_offset(rate_iops[DDIR_READ]),
2740 .off2 = td_var_offset(rate_iops[DDIR_WRITE]),
2741 .off3 = td_var_offset(rate_iops[DDIR_TRIM]),
2742 .help = "Limit IO used to this number of IO operations/sec",
2743 .hide = 1,
2744 .category = FIO_OPT_C_IO,
2745 .group = FIO_OPT_G_RATE,
2746 },
2747 {
2748 .name = "rate_iops_min",
2749 .lname = "I/O min rate IOPS",
2750 .type = FIO_OPT_INT,
2751 .off1 = td_var_offset(rate_iops_min[DDIR_READ]),
2752 .off2 = td_var_offset(rate_iops_min[DDIR_WRITE]),
2753 .off3 = td_var_offset(rate_iops_min[DDIR_TRIM]),
2754 .help = "Job must meet this rate or it will be shut down",
2755 .parent = "rate_iops",
2756 .hide = 1,
2757 .category = FIO_OPT_C_IO,
2758 .group = FIO_OPT_G_RATE,
2759 },
2760 {
2761 .name = "ratecycle",
2762 .lname = "I/O rate cycle",
2763 .type = FIO_OPT_INT,
2764 .off1 = td_var_offset(ratecycle),
2765 .help = "Window average for rate limits (msec)",
2766 .def = "1000",
2767 .parent = "rate",
2768 .hide = 1,
2769 .category = FIO_OPT_C_IO,
2770 .group = FIO_OPT_G_RATE,
2771 },
2772 {
2773 .name = "max_latency",
2774 .type = FIO_OPT_INT,
2775 .off1 = td_var_offset(max_latency),
2776 .help = "Maximum tolerated IO latency (usec)",
2777 .category = FIO_OPT_C_IO,
2778 .group = FIO_OPT_G_LATPROF,
2779 },
2780 {
2781 .name = "latency_target",
2782 .lname = "Latency Target (usec)",
2783 .type = FIO_OPT_STR_VAL_TIME,
2784 .off1 = td_var_offset(latency_target),
2785 .help = "Ramp to max queue depth supporting this latency",
2786 .category = FIO_OPT_C_IO,
2787 .group = FIO_OPT_G_LATPROF,
2788 },
2789 {
2790 .name = "latency_window",
2791 .lname = "Latency Window (usec)",
2792 .type = FIO_OPT_STR_VAL_TIME,
2793 .off1 = td_var_offset(latency_window),
2794 .help = "Time to sustain latency_target",
2795 .category = FIO_OPT_C_IO,
2796 .group = FIO_OPT_G_LATPROF,
2797 },
2798 {
2799 .name = "latency_percentile",
2800 .lname = "Latency Percentile",
2801 .type = FIO_OPT_FLOAT_LIST,
2802 .off1 = td_var_offset(latency_percentile),
2803 .help = "Percentile of IOs must be below latency_target",
2804 .def = "100",
2805 .maxlen = 1,
2806 .minfp = 0.0,
2807 .maxfp = 100.0,
2808 .category = FIO_OPT_C_IO,
2809 .group = FIO_OPT_G_LATPROF,
2810 },
2811 {
2812 .name = "invalidate",
2813 .lname = "Cache invalidate",
2814 .type = FIO_OPT_BOOL,
2815 .off1 = td_var_offset(invalidate_cache),
2816 .help = "Invalidate buffer/page cache prior to running job",
2817 .def = "1",
2818 .category = FIO_OPT_C_IO,
2819 .group = FIO_OPT_G_IO_TYPE,
2820 },
2821 {
2822 .name = "sync",
2823 .lname = "Synchronous I/O",
2824 .type = FIO_OPT_BOOL,
2825 .off1 = td_var_offset(sync_io),
2826 .help = "Use O_SYNC for buffered writes",
2827 .def = "0",
2828 .parent = "buffered",
2829 .hide = 1,
2830 .category = FIO_OPT_C_IO,
2831 .group = FIO_OPT_G_IO_TYPE,
2832 },
2833 {
2834 .name = "create_serialize",
2835 .lname = "Create serialize",
2836 .type = FIO_OPT_BOOL,
2837 .off1 = td_var_offset(create_serialize),
2838 .help = "Serialize creating of job files",
2839 .def = "1",
2840 .category = FIO_OPT_C_FILE,
2841 .group = FIO_OPT_G_INVALID,
2842 },
2843 {
2844 .name = "create_fsync",
2845 .lname = "Create fsync",
2846 .type = FIO_OPT_BOOL,
2847 .off1 = td_var_offset(create_fsync),
2848 .help = "fsync file after creation",
2849 .def = "1",
2850 .category = FIO_OPT_C_FILE,
2851 .group = FIO_OPT_G_INVALID,
2852 },
2853 {
2854 .name = "create_on_open",
2855 .lname = "Create on open",
2856 .type = FIO_OPT_BOOL,
2857 .off1 = td_var_offset(create_on_open),
2858 .help = "Create files when they are opened for IO",
2859 .def = "0",
2860 .category = FIO_OPT_C_FILE,
2861 .group = FIO_OPT_G_INVALID,
2862 },
2863 {
2864 .name = "create_only",
2865 .type = FIO_OPT_BOOL,
2866 .off1 = td_var_offset(create_only),
2867 .help = "Only perform file creation phase",
2868 .category = FIO_OPT_C_FILE,
2869 .def = "0",
2870 },
2871 {
2872 .name = "pre_read",
2873 .lname = "Pre-read files",
2874 .type = FIO_OPT_BOOL,
2875 .off1 = td_var_offset(pre_read),
2876 .help = "Pre-read files before starting official testing",
2877 .def = "0",
2878 .category = FIO_OPT_C_FILE,
2879 .group = FIO_OPT_G_INVALID,
2880 },
2881#ifdef FIO_HAVE_CPU_AFFINITY
2882 {
2883 .name = "cpumask",
2884 .lname = "CPU mask",
2885 .type = FIO_OPT_INT,
2886 .cb = str_cpumask_cb,
2887 .help = "CPU affinity mask",
2888 .category = FIO_OPT_C_GENERAL,
2889 .group = FIO_OPT_G_CRED,
2890 },
2891 {
2892 .name = "cpus_allowed",
2893 .lname = "CPUs allowed",
2894 .type = FIO_OPT_STR,
2895 .cb = str_cpus_allowed_cb,
2896 .help = "Set CPUs allowed",
2897 .category = FIO_OPT_C_GENERAL,
2898 .group = FIO_OPT_G_CRED,
2899 },
2900 {
2901 .name = "cpus_allowed_policy",
2902 .lname = "CPUs allowed distribution policy",
2903 .type = FIO_OPT_STR,
2904 .off1 = td_var_offset(cpus_allowed_policy),
2905 .help = "Distribution policy for cpus_allowed",
2906 .parent = "cpus_allowed",
2907 .prio = 1,
2908 .posval = {
2909 { .ival = "shared",
2910 .oval = FIO_CPUS_SHARED,
2911 .help = "Mask shared between threads",
2912 },
2913 { .ival = "split",
2914 .oval = FIO_CPUS_SPLIT,
2915 .help = "Mask split between threads",
2916 },
2917 },
2918 .category = FIO_OPT_C_GENERAL,
2919 .group = FIO_OPT_G_CRED,
2920 },
2921#endif
2922#ifdef CONFIG_LIBNUMA
2923 {
2924 .name = "numa_cpu_nodes",
2925 .type = FIO_OPT_STR,
2926 .cb = str_numa_cpunodes_cb,
2927 .help = "NUMA CPU nodes bind",
2928 .category = FIO_OPT_C_GENERAL,
2929 .group = FIO_OPT_G_INVALID,
2930 },
2931 {
2932 .name = "numa_mem_policy",
2933 .type = FIO_OPT_STR,
2934 .cb = str_numa_mpol_cb,
2935 .help = "NUMA memory policy setup",
2936 .category = FIO_OPT_C_GENERAL,
2937 .group = FIO_OPT_G_INVALID,
2938 },
2939#endif
2940 {
2941 .name = "end_fsync",
2942 .lname = "End fsync",
2943 .type = FIO_OPT_BOOL,
2944 .off1 = td_var_offset(end_fsync),
2945 .help = "Include fsync at the end of job",
2946 .def = "0",
2947 .category = FIO_OPT_C_FILE,
2948 .group = FIO_OPT_G_INVALID,
2949 },
2950 {
2951 .name = "fsync_on_close",
2952 .lname = "Fsync on close",
2953 .type = FIO_OPT_BOOL,
2954 .off1 = td_var_offset(fsync_on_close),
2955 .help = "fsync files on close",
2956 .def = "0",
2957 .category = FIO_OPT_C_FILE,
2958 .group = FIO_OPT_G_INVALID,
2959 },
2960 {
2961 .name = "unlink",
2962 .lname = "Unlink file",
2963 .type = FIO_OPT_BOOL,
2964 .off1 = td_var_offset(unlink),
2965 .help = "Unlink created files after job has completed",
2966 .def = "0",
2967 .category = FIO_OPT_C_FILE,
2968 .group = FIO_OPT_G_INVALID,
2969 },
2970 {
2971 .name = "exitall",
2972 .lname = "Exit-all on terminate",
2973 .type = FIO_OPT_STR_SET,
2974 .cb = str_exitall_cb,
2975 .help = "Terminate all jobs when one exits",
2976 .category = FIO_OPT_C_GENERAL,
2977 .group = FIO_OPT_G_PROCESS,
2978 },
2979 {
2980 .name = "stonewall",
2981 .lname = "Wait for previous",
2982 .alias = "wait_for_previous",
2983 .type = FIO_OPT_STR_SET,
2984 .off1 = td_var_offset(stonewall),
2985 .help = "Insert a hard barrier between this job and previous",
2986 .category = FIO_OPT_C_GENERAL,
2987 .group = FIO_OPT_G_PROCESS,
2988 },
2989 {
2990 .name = "new_group",
2991 .lname = "New group",
2992 .type = FIO_OPT_STR_SET,
2993 .off1 = td_var_offset(new_group),
2994 .help = "Mark the start of a new group (for reporting)",
2995 .category = FIO_OPT_C_GENERAL,
2996 .group = FIO_OPT_G_PROCESS,
2997 },
2998 {
2999 .name = "thread",
3000 .lname = "Thread",
3001 .type = FIO_OPT_STR_SET,
3002 .off1 = td_var_offset(use_thread),
3003 .help = "Use threads instead of processes",
3004 .category = FIO_OPT_C_GENERAL,
3005 .group = FIO_OPT_G_PROCESS,
3006 },
3007 {
3008 .name = "write_bw_log",
3009 .lname = "Write bandwidth log",
3010 .type = FIO_OPT_STR_STORE,
3011 .off1 = td_var_offset(bw_log_file),
3012 .help = "Write log of bandwidth during run",
3013 .category = FIO_OPT_C_LOG,
3014 .group = FIO_OPT_G_INVALID,
3015 },
3016 {
3017 .name = "write_lat_log",
3018 .lname = "Write latency log",
3019 .type = FIO_OPT_STR_STORE,
3020 .off1 = td_var_offset(lat_log_file),
3021 .help = "Write log of latency during run",
3022 .category = FIO_OPT_C_LOG,
3023 .group = FIO_OPT_G_INVALID,
3024 },
3025 {
3026 .name = "write_iops_log",
3027 .lname = "Write IOPS log",
3028 .type = FIO_OPT_STR_STORE,
3029 .off1 = td_var_offset(iops_log_file),
3030 .help = "Write log of IOPS during run",
3031 .category = FIO_OPT_C_LOG,
3032 .group = FIO_OPT_G_INVALID,
3033 },
3034 {
3035 .name = "log_avg_msec",
3036 .lname = "Log averaging (msec)",
3037 .type = FIO_OPT_INT,
3038 .off1 = td_var_offset(log_avg_msec),
3039 .help = "Average bw/iops/lat logs over this period of time",
3040 .def = "0",
3041 .category = FIO_OPT_C_LOG,
3042 .group = FIO_OPT_G_INVALID,
3043 },
3044 {
3045 .name = "bwavgtime",
3046 .lname = "Bandwidth average time",
3047 .type = FIO_OPT_INT,
3048 .off1 = td_var_offset(bw_avg_time),
3049 .help = "Time window over which to calculate bandwidth"
3050 " (msec)",
3051 .def = "500",
3052 .parent = "write_bw_log",
3053 .hide = 1,
3054 .interval = 100,
3055 .category = FIO_OPT_C_LOG,
3056 .group = FIO_OPT_G_INVALID,
3057 },
3058 {
3059 .name = "iopsavgtime",
3060 .lname = "IOPS average time",
3061 .type = FIO_OPT_INT,
3062 .off1 = td_var_offset(iops_avg_time),
3063 .help = "Time window over which to calculate IOPS (msec)",
3064 .def = "500",
3065 .parent = "write_iops_log",
3066 .hide = 1,
3067 .interval = 100,
3068 .category = FIO_OPT_C_LOG,
3069 .group = FIO_OPT_G_INVALID,
3070 },
3071 {
3072 .name = "group_reporting",
3073 .lname = "Group reporting",
3074 .type = FIO_OPT_STR_SET,
3075 .off1 = td_var_offset(group_reporting),
3076 .help = "Do reporting on a per-group basis",
3077 .category = FIO_OPT_C_STAT,
3078 .group = FIO_OPT_G_INVALID,
3079 },
3080 {
3081 .name = "zero_buffers",
3082 .lname = "Zero I/O buffers",
3083 .type = FIO_OPT_STR_SET,
3084 .off1 = td_var_offset(zero_buffers),
3085 .help = "Init IO buffers to all zeroes",
3086 .category = FIO_OPT_C_IO,
3087 .group = FIO_OPT_G_IO_BUF,
3088 },
3089 {
3090 .name = "refill_buffers",
3091 .lname = "Refill I/O buffers",
3092 .type = FIO_OPT_STR_SET,
3093 .off1 = td_var_offset(refill_buffers),
3094 .help = "Refill IO buffers on every IO submit",
3095 .category = FIO_OPT_C_IO,
3096 .group = FIO_OPT_G_IO_BUF,
3097 },
3098 {
3099 .name = "scramble_buffers",
3100 .lname = "Scramble I/O buffers",
3101 .type = FIO_OPT_BOOL,
3102 .off1 = td_var_offset(scramble_buffers),
3103 .help = "Slightly scramble buffers on every IO submit",
3104 .def = "1",
3105 .category = FIO_OPT_C_IO,
3106 .group = FIO_OPT_G_IO_BUF,
3107 },
3108 {
3109 .name = "buffer_pattern",
3110 .lname = "Buffer pattern",
3111 .type = FIO_OPT_STR,
3112 .cb = str_buffer_pattern_cb,
3113 .help = "Fill pattern for IO buffers",
3114 .category = FIO_OPT_C_IO,
3115 .group = FIO_OPT_G_IO_BUF,
3116 },
3117 {
3118 .name = "buffer_compress_percentage",
3119 .lname = "Buffer compression percentage",
3120 .type = FIO_OPT_INT,
3121 .off1 = td_var_offset(compress_percentage),
3122 .maxval = 100,
3123 .minval = 0,
3124 .help = "How compressible the buffer is (approximately)",
3125 .interval = 5,
3126 .category = FIO_OPT_C_IO,
3127 .group = FIO_OPT_G_IO_BUF,
3128 },
3129 {
3130 .name = "buffer_compress_chunk",
3131 .lname = "Buffer compression chunk size",
3132 .type = FIO_OPT_INT,
3133 .off1 = td_var_offset(compress_chunk),
3134 .parent = "buffer_compress_percentage",
3135 .hide = 1,
3136 .help = "Size of compressible region in buffer",
3137 .interval = 256,
3138 .category = FIO_OPT_C_IO,
3139 .group = FIO_OPT_G_IO_BUF,
3140 },
3141 {
3142 .name = "clat_percentiles",
3143 .lname = "Completion latency percentiles",
3144 .type = FIO_OPT_BOOL,
3145 .off1 = td_var_offset(clat_percentiles),
3146 .help = "Enable the reporting of completion latency percentiles",
3147 .def = "1",
3148 .category = FIO_OPT_C_STAT,
3149 .group = FIO_OPT_G_INVALID,
3150 },
3151 {
3152 .name = "percentile_list",
3153 .lname = "Completion latency percentile list",
3154 .type = FIO_OPT_FLOAT_LIST,
3155 .off1 = td_var_offset(percentile_list),
3156 .off2 = td_var_offset(percentile_precision),
3157 .help = "Specify a custom list of percentiles to report",
3158 .def = "1:5:10:20:30:40:50:60:70:80:90:95:99:99.5:99.9:99.95:99.99",
3159 .maxlen = FIO_IO_U_LIST_MAX_LEN,
3160 .minfp = 0.0,
3161 .maxfp = 100.0,
3162 .category = FIO_OPT_C_STAT,
3163 .group = FIO_OPT_G_INVALID,
3164 },
3165
3166#ifdef FIO_HAVE_DISK_UTIL
3167 {
3168 .name = "disk_util",
3169 .lname = "Disk utilization",
3170 .type = FIO_OPT_BOOL,
3171 .off1 = td_var_offset(do_disk_util),
3172 .help = "Log disk utilization statistics",
3173 .def = "1",
3174 .category = FIO_OPT_C_STAT,
3175 .group = FIO_OPT_G_INVALID,
3176 },
3177#endif
3178 {
3179 .name = "gtod_reduce",
3180 .lname = "Reduce gettimeofday() calls",
3181 .type = FIO_OPT_BOOL,
3182 .help = "Greatly reduce number of gettimeofday() calls",
3183 .cb = str_gtod_reduce_cb,
3184 .def = "0",
3185 .hide_on_set = 1,
3186 .category = FIO_OPT_C_STAT,
3187 .group = FIO_OPT_G_INVALID,
3188 },
3189 {
3190 .name = "disable_lat",
3191 .lname = "Disable all latency stats",
3192 .type = FIO_OPT_BOOL,
3193 .off1 = td_var_offset(disable_lat),
3194 .help = "Disable latency numbers",
3195 .parent = "gtod_reduce",
3196 .hide = 1,
3197 .def = "0",
3198 .category = FIO_OPT_C_STAT,
3199 .group = FIO_OPT_G_INVALID,
3200 },
3201 {
3202 .name = "disable_clat",
3203 .lname = "Disable completion latency stats",
3204 .type = FIO_OPT_BOOL,
3205 .off1 = td_var_offset(disable_clat),
3206 .help = "Disable completion latency numbers",
3207 .parent = "gtod_reduce",
3208 .hide = 1,
3209 .def = "0",
3210 .category = FIO_OPT_C_STAT,
3211 .group = FIO_OPT_G_INVALID,
3212 },
3213 {
3214 .name = "disable_slat",
3215 .lname = "Disable submission latency stats",
3216 .type = FIO_OPT_BOOL,
3217 .off1 = td_var_offset(disable_slat),
3218 .help = "Disable submission latency numbers",
3219 .parent = "gtod_reduce",
3220 .hide = 1,
3221 .def = "0",
3222 .category = FIO_OPT_C_STAT,
3223 .group = FIO_OPT_G_INVALID,
3224 },
3225 {
3226 .name = "disable_bw_measurement",
3227 .lname = "Disable bandwidth stats",
3228 .type = FIO_OPT_BOOL,
3229 .off1 = td_var_offset(disable_bw),
3230 .help = "Disable bandwidth logging",
3231 .parent = "gtod_reduce",
3232 .hide = 1,
3233 .def = "0",
3234 .category = FIO_OPT_C_STAT,
3235 .group = FIO_OPT_G_INVALID,
3236 },
3237 {
3238 .name = "gtod_cpu",
3239 .lname = "Dedicated gettimeofday() CPU",
3240 .type = FIO_OPT_INT,
3241 .cb = str_gtod_cpu_cb,
3242 .help = "Set up dedicated gettimeofday() thread on this CPU",
3243 .verify = gtod_cpu_verify,
3244 .category = FIO_OPT_C_GENERAL,
3245 .group = FIO_OPT_G_CLOCK,
3246 },
3247 {
3248 .name = "unified_rw_reporting",
3249 .type = FIO_OPT_BOOL,
3250 .off1 = td_var_offset(unified_rw_rep),
3251 .help = "Unify reporting across data direction",
3252 .def = "0",
3253 .category = FIO_OPT_C_GENERAL,
3254 .group = FIO_OPT_G_INVALID,
3255 },
3256 {
3257 .name = "continue_on_error",
3258 .lname = "Continue on error",
3259 .type = FIO_OPT_STR,
3260 .off1 = td_var_offset(continue_on_error),
3261 .help = "Continue on non-fatal errors during IO",
3262 .def = "none",
3263 .category = FIO_OPT_C_GENERAL,
3264 .group = FIO_OPT_G_ERR,
3265 .posval = {
3266 { .ival = "none",
3267 .oval = ERROR_TYPE_NONE,
3268 .help = "Exit when an error is encountered",
3269 },
3270 { .ival = "read",
3271 .oval = ERROR_TYPE_READ,
3272 .help = "Continue on read errors only",
3273 },
3274 { .ival = "write",
3275 .oval = ERROR_TYPE_WRITE,
3276 .help = "Continue on write errors only",
3277 },
3278 { .ival = "io",
3279 .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
3280 .help = "Continue on any IO errors",
3281 },
3282 { .ival = "verify",
3283 .oval = ERROR_TYPE_VERIFY,
3284 .help = "Continue on verify errors only",
3285 },
3286 { .ival = "all",
3287 .oval = ERROR_TYPE_ANY,
3288 .help = "Continue on all io and verify errors",
3289 },
3290 { .ival = "0",
3291 .oval = ERROR_TYPE_NONE,
3292 .help = "Alias for 'none'",
3293 },
3294 { .ival = "1",
3295 .oval = ERROR_TYPE_ANY,
3296 .help = "Alias for 'all'",
3297 },
3298 },
3299 },
3300 {
3301 .name = "ignore_error",
3302 .type = FIO_OPT_STR,
3303 .cb = str_ignore_error_cb,
3304 .help = "Set a specific list of errors to ignore",
3305 .parent = "rw",
3306 .category = FIO_OPT_C_GENERAL,
3307 .group = FIO_OPT_G_ERR,
3308 },
3309 {
3310 .name = "error_dump",
3311 .type = FIO_OPT_BOOL,
3312 .off1 = td_var_offset(error_dump),
3313 .def = "0",
3314 .help = "Dump info on each error",
3315 .category = FIO_OPT_C_GENERAL,
3316 .group = FIO_OPT_G_ERR,
3317 },
3318 {
3319 .name = "profile",
3320 .lname = "Profile",
3321 .type = FIO_OPT_STR_STORE,
3322 .off1 = td_var_offset(profile),
3323 .help = "Select a specific builtin performance test",
3324 .category = FIO_OPT_C_PROFILE,
3325 .group = FIO_OPT_G_INVALID,
3326 },
3327 {
3328 .name = "cgroup",
3329 .lname = "Cgroup",
3330 .type = FIO_OPT_STR_STORE,
3331 .off1 = td_var_offset(cgroup),
3332 .help = "Add job to cgroup of this name",
3333 .category = FIO_OPT_C_GENERAL,
3334 .group = FIO_OPT_G_CGROUP,
3335 },
3336 {
3337 .name = "cgroup_nodelete",
3338 .lname = "Cgroup no-delete",
3339 .type = FIO_OPT_BOOL,
3340 .off1 = td_var_offset(cgroup_nodelete),
3341 .help = "Do not delete cgroups after job completion",
3342 .def = "0",
3343 .parent = "cgroup",
3344 .category = FIO_OPT_C_GENERAL,
3345 .group = FIO_OPT_G_CGROUP,
3346 },
3347 {
3348 .name = "cgroup_weight",
3349 .lname = "Cgroup weight",
3350 .type = FIO_OPT_INT,
3351 .off1 = td_var_offset(cgroup_weight),
3352 .help = "Use given weight for cgroup",
3353 .minval = 100,
3354 .maxval = 1000,
3355 .parent = "cgroup",
3356 .category = FIO_OPT_C_GENERAL,
3357 .group = FIO_OPT_G_CGROUP,
3358 },
3359 {
3360 .name = "uid",
3361 .lname = "User ID",
3362 .type = FIO_OPT_INT,
3363 .off1 = td_var_offset(uid),
3364 .help = "Run job with this user ID",
3365 .category = FIO_OPT_C_GENERAL,
3366 .group = FIO_OPT_G_CRED,
3367 },
3368 {
3369 .name = "gid",
3370 .lname = "Group ID",
3371 .type = FIO_OPT_INT,
3372 .off1 = td_var_offset(gid),
3373 .help = "Run job with this group ID",
3374 .category = FIO_OPT_C_GENERAL,
3375 .group = FIO_OPT_G_CRED,
3376 },
3377 {
3378 .name = "kb_base",
3379 .lname = "KB Base",
3380 .type = FIO_OPT_INT,
3381 .off1 = td_var_offset(kb_base),
3382 .prio = 1,
3383 .def = "1024",
3384 .posval = {
3385 { .ival = "1024",
3386 .oval = 1024,
3387 .help = "Use 1024 as the K base",
3388 },
3389 { .ival = "1000",
3390 .oval = 1000,
3391 .help = "Use 1000 as the K base",
3392 },
3393 },
3394 .help = "How many bytes per KB for reporting (1000 or 1024)",
3395 .category = FIO_OPT_C_GENERAL,
3396 .group = FIO_OPT_G_INVALID,
3397 },
3398 {
3399 .name = "unit_base",
3400 .lname = "Base unit for reporting (Bits or Bytes)",
3401 .type = FIO_OPT_INT,
3402 .off1 = td_var_offset(unit_base),
3403 .prio = 1,
3404 .posval = {
3405 { .ival = "0",
3406 .oval = 0,
3407 .help = "Auto-detect",
3408 },
3409 { .ival = "8",
3410 .oval = 8,
3411 .help = "Normal (byte based)",
3412 },
3413 { .ival = "1",
3414 .oval = 1,
3415 .help = "Bit based",
3416 },
3417 },
3418 .help = "Bit multiple of result summary data (8 for byte, 1 for bit)",
3419 .category = FIO_OPT_C_GENERAL,
3420 .group = FIO_OPT_G_INVALID,
3421 },
3422 {
3423 .name = "hugepage-size",
3424 .lname = "Hugepage size",
3425 .type = FIO_OPT_INT,
3426 .off1 = td_var_offset(hugepage_size),
3427 .help = "When using hugepages, specify size of each page",
3428 .def = __fio_stringify(FIO_HUGE_PAGE),
3429 .interval = 1024 * 1024,
3430 .category = FIO_OPT_C_GENERAL,
3431 .group = FIO_OPT_G_INVALID,
3432 },
3433 {
3434 .name = "flow_id",
3435 .lname = "I/O flow ID",
3436 .type = FIO_OPT_INT,
3437 .off1 = td_var_offset(flow_id),
3438 .help = "The flow index ID to use",
3439 .def = "0",
3440 .category = FIO_OPT_C_IO,
3441 .group = FIO_OPT_G_IO_FLOW,
3442 },
3443 {
3444 .name = "flow",
3445 .lname = "I/O flow weight",
3446 .type = FIO_OPT_INT,
3447 .off1 = td_var_offset(flow),
3448 .help = "Weight for flow control of this job",
3449 .parent = "flow_id",
3450 .hide = 1,
3451 .def = "0",
3452 .category = FIO_OPT_C_IO,
3453 .group = FIO_OPT_G_IO_FLOW,
3454 },
3455 {
3456 .name = "flow_watermark",
3457 .lname = "I/O flow watermark",
3458 .type = FIO_OPT_INT,
3459 .off1 = td_var_offset(flow_watermark),
3460 .help = "High watermark for flow control. This option"
3461 " should be set to the same value for all threads"
3462 " with non-zero flow.",
3463 .parent = "flow_id",
3464 .hide = 1,
3465 .def = "1024",
3466 .category = FIO_OPT_C_IO,
3467 .group = FIO_OPT_G_IO_FLOW,
3468 },
3469 {
3470 .name = "flow_sleep",
3471 .lname = "I/O flow sleep",
3472 .type = FIO_OPT_INT,
3473 .off1 = td_var_offset(flow_sleep),
3474 .help = "How many microseconds to sleep after being held"
3475 " back by the flow control mechanism",
3476 .parent = "flow_id",
3477 .hide = 1,
3478 .def = "0",
3479 .category = FIO_OPT_C_IO,
3480 .group = FIO_OPT_G_IO_FLOW,
3481 },
3482 {
3483 .name = NULL,
3484 },
3485};
3486
3487static void add_to_lopt(struct option *lopt, struct fio_option *o,
3488 const char *name, int val)
3489{
3490 lopt->name = (char *) name;
3491 lopt->val = val;
3492 if (o->type == FIO_OPT_STR_SET)
3493 lopt->has_arg = optional_argument;
3494 else
3495 lopt->has_arg = required_argument;
3496}
3497
3498static void options_to_lopts(struct fio_option *opts,
3499 struct option *long_options,
3500 int i, int option_type)
3501{
3502 struct fio_option *o = &opts[0];
3503 while (o->name) {
3504 add_to_lopt(&long_options[i], o, o->name, option_type);
3505 if (o->alias) {
3506 i++;
3507 add_to_lopt(&long_options[i], o, o->alias, option_type);
3508 }
3509
3510 i++;
3511 o++;
3512 assert(i < FIO_NR_OPTIONS);
3513 }
3514}
3515
3516void fio_options_set_ioengine_opts(struct option *long_options,
3517 struct thread_data *td)
3518{
3519 unsigned int i;
3520
3521 i = 0;
3522 while (long_options[i].name) {
3523 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
3524 memset(&long_options[i], 0, sizeof(*long_options));
3525 break;
3526 }
3527 i++;
3528 }
3529
3530 /*
3531 * Just clear out the prior ioengine options.
3532 */
3533 if (!td || !td->eo)
3534 return;
3535
3536 options_to_lopts(td->io_ops->options, long_options, i,
3537 FIO_GETOPT_IOENGINE);
3538}
3539
3540void fio_options_dup_and_init(struct option *long_options)
3541{
3542 unsigned int i;
3543
3544 options_init(fio_options);
3545
3546 i = 0;
3547 while (long_options[i].name)
3548 i++;
3549
3550 options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
3551}
3552
3553struct fio_keyword {
3554 const char *word;
3555 const char *desc;
3556 char *replace;
3557};
3558
3559static struct fio_keyword fio_keywords[] = {
3560 {
3561 .word = "$pagesize",
3562 .desc = "Page size in the system",
3563 },
3564 {
3565 .word = "$mb_memory",
3566 .desc = "Megabytes of memory online",
3567 },
3568 {
3569 .word = "$ncpus",
3570 .desc = "Number of CPUs online in the system",
3571 },
3572 {
3573 .word = NULL,
3574 },
3575};
3576
3577void fio_keywords_init(void)
3578{
3579 unsigned long long mb_memory;
3580 char buf[128];
3581 long l;
3582
3583 sprintf(buf, "%lu", (unsigned long) page_size);
3584 fio_keywords[0].replace = strdup(buf);
3585
3586 mb_memory = os_phys_mem() / (1024 * 1024);
3587 sprintf(buf, "%llu", mb_memory);
3588 fio_keywords[1].replace = strdup(buf);
3589
3590 l = cpus_online();
3591 sprintf(buf, "%lu", l);
3592 fio_keywords[2].replace = strdup(buf);
3593}
3594
3595#define BC_APP "bc"
3596
3597static char *bc_calc(char *str)
3598{
3599 char buf[128], *tmp;
3600 FILE *f;
3601 int ret;
3602
3603 /*
3604 * No math, just return string
3605 */
3606 if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
3607 !strchr(str, '/')) || strchr(str, '\''))
3608 return str;
3609
3610 /*
3611 * Split option from value, we only need to calculate the value
3612 */
3613 tmp = strchr(str, '=');
3614 if (!tmp)
3615 return str;
3616
3617 tmp++;
3618
3619 /*
3620 * Prevent buffer overflows; such a case isn't reasonable anyway
3621 */
3622 if (strlen(str) >= 128 || strlen(tmp) > 100)
3623 return str;
3624
3625 sprintf(buf, "which %s > /dev/null", BC_APP);
3626 if (system(buf)) {
3627 log_err("fio: bc is needed for performing math\n");
3628 return NULL;
3629 }
3630
3631 sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
3632 f = popen(buf, "r");
3633 if (!f)
3634 return NULL;
3635
3636 ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
3637 if (ret <= 0)
3638 return NULL;
3639
3640 pclose(f);
3641 buf[(tmp - str) + ret - 1] = '\0';
3642 memcpy(buf, str, tmp - str);
3643 free(str);
3644 return strdup(buf);
3645}
3646
3647/*
3648 * Return a copy of the input string with substrings of the form ${VARNAME}
3649 * substituted with the value of the environment variable VARNAME. The
3650 * substitution always occurs, even if VARNAME is empty or the corresponding
3651 * environment variable undefined.
3652 */
3653static char *option_dup_subs(const char *opt)
3654{
3655 char out[OPT_LEN_MAX+1];
3656 char in[OPT_LEN_MAX+1];
3657 char *outptr = out;
3658 char *inptr = in;
3659 char *ch1, *ch2, *env;
3660 ssize_t nchr = OPT_LEN_MAX;
3661 size_t envlen;
3662
3663 if (strlen(opt) + 1 > OPT_LEN_MAX) {
3664 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
3665 return NULL;
3666 }
3667
3668 in[OPT_LEN_MAX] = '\0';
3669 strncpy(in, opt, OPT_LEN_MAX);
3670
3671 while (*inptr && nchr > 0) {
3672 if (inptr[0] == '$' && inptr[1] == '{') {
3673 ch2 = strchr(inptr, '}');
3674 if (ch2 && inptr+1 < ch2) {
3675 ch1 = inptr+2;
3676 inptr = ch2+1;
3677 *ch2 = '\0';
3678
3679 env = getenv(ch1);
3680 if (env) {
3681 envlen = strlen(env);
3682 if (envlen <= nchr) {
3683 memcpy(outptr, env, envlen);
3684 outptr += envlen;
3685 nchr -= envlen;
3686 }
3687 }
3688
3689 continue;
3690 }
3691 }
3692
3693 *outptr++ = *inptr++;
3694 --nchr;
3695 }
3696
3697 *outptr = '\0';
3698 return strdup(out);
3699}
3700
3701/*
3702 * Look for reserved variable names and replace them with real values
3703 */
3704static char *fio_keyword_replace(char *opt)
3705{
3706 char *s;
3707 int i;
3708 int docalc = 0;
3709
3710 for (i = 0; fio_keywords[i].word != NULL; i++) {
3711 struct fio_keyword *kw = &fio_keywords[i];
3712
3713 while ((s = strstr(opt, kw->word)) != NULL) {
3714 char *new = malloc(strlen(opt) + 1);
3715 char *o_org = opt;
3716 int olen = s - opt;
3717 int len;
3718
3719 /*
3720 * Copy part of the string before the keyword and
3721 * sprintf() the replacement after it.
3722 */
3723 memcpy(new, opt, olen);
3724 len = sprintf(new + olen, "%s", kw->replace);
3725
3726 /*
3727 * If there's more in the original string, copy that
3728 * in too
3729 */
3730 opt += strlen(kw->word) + olen;
3731 if (strlen(opt))
3732 memcpy(new + olen + len, opt, opt - o_org - 1);
3733
3734 /*
3735 * replace opt and free the old opt
3736 */
3737 opt = new;
3738 free(o_org);
3739
3740 docalc = 1;
3741 }
3742 }
3743
3744 /*
3745 * Check for potential math and invoke bc, if possible
3746 */
3747 if (docalc)
3748 opt = bc_calc(opt);
3749
3750 return opt;
3751}
3752
3753static char **dup_and_sub_options(char **opts, int num_opts)
3754{
3755 int i;
3756 char **opts_copy = malloc(num_opts * sizeof(*opts));
3757 for (i = 0; i < num_opts; i++) {
3758 opts_copy[i] = option_dup_subs(opts[i]);
3759 if (!opts_copy[i])
3760 continue;
3761 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
3762 }
3763 return opts_copy;
3764}
3765
3766int fio_options_parse(struct thread_data *td, char **opts, int num_opts,
3767 int dump_cmdline)
3768{
3769 int i, ret, unknown;
3770 char **opts_copy;
3771
3772 sort_options(opts, fio_options, num_opts);
3773 opts_copy = dup_and_sub_options(opts, num_opts);
3774
3775 for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
3776 struct fio_option *o;
3777 int newret = parse_option(opts_copy[i], opts[i], fio_options,
3778 &o, td, dump_cmdline);
3779
3780 if (opts_copy[i]) {
3781 if (newret && !o) {
3782 unknown++;
3783 continue;
3784 }
3785 free(opts_copy[i]);
3786 opts_copy[i] = NULL;
3787 }
3788
3789 ret |= newret;
3790 }
3791
3792 if (unknown) {
3793 ret |= ioengine_load(td);
3794 if (td->eo) {
3795 sort_options(opts_copy, td->io_ops->options, num_opts);
3796 opts = opts_copy;
3797 }
3798 for (i = 0; i < num_opts; i++) {
3799 struct fio_option *o = NULL;
3800 int newret = 1;
3801 if (!opts_copy[i])
3802 continue;
3803
3804 if (td->eo)
3805 newret = parse_option(opts_copy[i], opts[i],
3806 td->io_ops->options, &o,
3807 td->eo, dump_cmdline);
3808
3809 ret |= newret;
3810 if (!o)
3811 log_err("Bad option <%s>\n", opts[i]);
3812
3813 free(opts_copy[i]);
3814 opts_copy[i] = NULL;
3815 }
3816 }
3817
3818 free(opts_copy);
3819 return ret;
3820}
3821
3822int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
3823{
3824 return parse_cmd_option(opt, val, fio_options, td);
3825}
3826
3827int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
3828 char *val)
3829{
3830 return parse_cmd_option(opt, val, td->io_ops->options, td->eo);
3831}
3832
3833void fio_fill_default_options(struct thread_data *td)
3834{
3835 td->o.magic = OPT_MAGIC;
3836 fill_default_options(td, fio_options);
3837}
3838
3839int fio_show_option_help(const char *opt)
3840{
3841 return show_cmd_help(fio_options, opt);
3842}
3843
3844void options_mem_dupe(void *data, struct fio_option *options)
3845{
3846 struct fio_option *o;
3847 char **ptr;
3848
3849 for (o = &options[0]; o->name; o++) {
3850 if (o->type != FIO_OPT_STR_STORE)
3851 continue;
3852
3853 ptr = td_var(data, o, o->off1);
3854 if (*ptr)
3855 *ptr = strdup(*ptr);
3856 }
3857}
3858
3859/*
3860 * dupe FIO_OPT_STR_STORE options
3861 */
3862void fio_options_mem_dupe(struct thread_data *td)
3863{
3864 options_mem_dupe(&td->o, fio_options);
3865
3866 if (td->eo && td->io_ops) {
3867 void *oldeo = td->eo;
3868
3869 td->eo = malloc(td->io_ops->option_struct_size);
3870 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
3871 options_mem_dupe(td->eo, td->io_ops->options);
3872 }
3873}
3874
3875unsigned int fio_get_kb_base(void *data)
3876{
3877 struct thread_options *o = data;
3878 unsigned int kb_base = 0;
3879
3880 /*
3881 * This is a hack... For private options, *data is not holding
3882 * a pointer to the thread_options, but to private data. This means
3883 * we can't safely dereference it, but magic is first so mem wise
3884 * it is valid. But this also means that if the job first sets
3885 * kb_base and expects that to be honored by private options,
3886 * it will be disappointed. We will return the global default
3887 * for this.
3888 */
3889 if (o && o->magic == OPT_MAGIC)
3890 kb_base = o->kb_base;
3891 if (!kb_base)
3892 kb_base = 1024;
3893
3894 return kb_base;
3895}
3896
3897int add_option(struct fio_option *o)
3898{
3899 struct fio_option *__o;
3900 int opt_index = 0;
3901
3902 __o = fio_options;
3903 while (__o->name) {
3904 opt_index++;
3905 __o++;
3906 }
3907
3908 if (opt_index + 1 == FIO_MAX_OPTS) {
3909 log_err("fio: FIO_MAX_OPTS is too small\n");
3910 return 1;
3911 }
3912
3913 memcpy(&fio_options[opt_index], o, sizeof(*o));
3914 fio_options[opt_index + 1].name = NULL;
3915 return 0;
3916}
3917
3918void invalidate_profile_options(const char *prof_name)
3919{
3920 struct fio_option *o;
3921
3922 o = fio_options;
3923 while (o->name) {
3924 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
3925 o->type = FIO_OPT_INVALID;
3926 o->prof_name = NULL;
3927 }
3928 o++;
3929 }
3930}
3931
3932void add_opt_posval(const char *optname, const char *ival, const char *help)
3933{
3934 struct fio_option *o;
3935 unsigned int i;
3936
3937 o = find_option(fio_options, optname);
3938 if (!o)
3939 return;
3940
3941 for (i = 0; i < PARSE_MAX_VP; i++) {
3942 if (o->posval[i].ival)
3943 continue;
3944
3945 o->posval[i].ival = ival;
3946 o->posval[i].help = help;
3947 break;
3948 }
3949}
3950
3951void del_opt_posval(const char *optname, const char *ival)
3952{
3953 struct fio_option *o;
3954 unsigned int i;
3955
3956 o = find_option(fio_options, optname);
3957 if (!o)
3958 return;
3959
3960 for (i = 0; i < PARSE_MAX_VP; i++) {
3961 if (!o->posval[i].ival)
3962 continue;
3963 if (strcmp(o->posval[i].ival, ival))
3964 continue;
3965
3966 o->posval[i].ival = NULL;
3967 o->posval[i].help = NULL;
3968 }
3969}
3970
3971void fio_options_free(struct thread_data *td)
3972{
3973 options_free(fio_options, td);
3974 if (td->eo && td->io_ops && td->io_ops->options) {
3975 options_free(td->io_ops->options, td->eo);
3976 free(td->eo);
3977 td->eo = NULL;
3978 }
3979}
3980
3981struct fio_option *fio_option_find(const char *name)
3982{
3983 return find_option(fio_options, name);
3984}
3985
fio - Flexible IO Tester