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Update libhdfs engine documention and options
[fio.git] / options.c
CommitLineData
214e1eca
JA		 1#include <stdio.h>
2#include <stdlib.h>
3#include <unistd.h>
4#include <ctype.h>
5#include <string.h>
214e1eca 6#include <assert.h>
921c766f 7#include <libgen.h>
5921e80c
JA		 8#include <fcntl.h>
9#include <sys/types.h>
10#include <sys/stat.h>
214e1eca
JA		 11
12#include "fio.h"
4f5af7b2 13#include "verify.h"
214e1eca 14#include "parse.h"
eef32359 15#include "lib/fls.h"
9f988e2e 16#include "options.h"
214e1eca 17
5d7c5d34
JA		 18#include "crc/crc32c.h"
19
214e1eca
JA		 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
0e92f873
RR		 36static int converthexchartoint(char a)
37{
38 int base;
39
3c3ed070 40 switch (a) {
0e92f873
RR		 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 }
3c3ed070 53 return a - base;
0e92f873
RR		 54}
55
564ca972
JA		 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
83ea422a 64static int bssplit_ddir(struct thread_options *o, int ddir, char *str)
564ca972 65{
720e84ad 66 struct bssplit *bssplit;
564ca972
JA		 67 unsigned int i, perc, perc_missing;
68 unsigned int max_bs, min_bs;
69 long long val;
720e84ad 70 char *fname;
564ca972 71
83ea422a 72 o->bssplit_nr[ddir] = 4;
720e84ad 73 bssplit = malloc(4 * sizeof(struct bssplit));
564ca972
JA		 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 */
83ea422a
JA		 87 if (i == o->bssplit_nr[ddir]) {
88 o->bssplit_nr[ddir] <<= 1;
89 bssplit = realloc(bssplit, o->bssplit_nr[ddir]
5ec10eaa 90 * sizeof(struct bssplit));
564ca972
JA		 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
0de5b26f 105 if (str_to_decimal(fname, &val, 1, o, 0)) {
564ca972 106 log_err("fio: bssplit conversion failed\n");
d8b97c8e 107 free(bssplit);
564ca972
JA		 108 return 1;
109 }
110
111 if (val > max_bs)
112 max_bs = val;
113 if (val < min_bs)
114 min_bs = val;
115
720e84ad
JA		 116 bssplit[i].bs = val;
117 bssplit[i].perc = perc;
564ca972
JA		 118 i++;
119 }
120
83ea422a 121 o->bssplit_nr[ddir] = i;
564ca972
JA		 122
123 /*
124 * Now check if the percentages add up, and how much is missing
125 */
126 perc = perc_missing = 0;
83ea422a 127 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
720e84ad 128 struct bssplit *bsp = &bssplit[i];
564ca972
JA		 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");
720e84ad 138 free(bssplit);
564ca972
JA		 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) {
83ea422a 146 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
720e84ad 147 struct bssplit *bsp = &bssplit[i];
564ca972
JA		 148
149 if (bsp->perc == (unsigned char) -1)
150 bsp->perc = (100 - perc) / perc_missing;
151 }
152 }
153
83ea422a
JA		 154 o->min_bs[ddir] = min_bs;
155 o->max_bs[ddir] = max_bs;
564ca972
JA		 156
157 /*
158 * now sort based on percentages, for ease of lookup
159 */
83ea422a
JA		 160 qsort(bssplit, o->bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
161 o->bssplit[ddir] = bssplit;
720e84ad 162 return 0;
720e84ad
JA		 163}
164
165static int str_bssplit_cb(void *data, const char *input)
166{
167 struct thread_data *td = data;
6eaf09d6 168 char *str, *p, *odir, *ddir;
720e84ad
JA		 169 int ret = 0;
170
52c0cea3
JA		 171 if (parse_dryrun())
172 return 0;
173
720e84ad
JA		 174 p = str = strdup(input);
175
176 strip_blank_front(&str);
177 strip_blank_end(str);
178
179 odir = strchr(str, ',');
180 if (odir) {
6eaf09d6
SL		 181 ddir = strchr(odir + 1, ',');
182 if (ddir) {
d79db122 183 ret = bssplit_ddir(&td->o, DDIR_TRIM, ddir + 1);
6eaf09d6
SL		 184 if (!ret)
185 *ddir = '\0';
186 } else {
187 char *op;
188
189 op = strdup(odir + 1);
d79db122 190 ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
6eaf09d6
SL		 191
192 free(op);
193 }
d79db122
JA		 194 if (!ret)
195 ret = bssplit_ddir(&td->o, DDIR_WRITE, odir + 1);
720e84ad
JA		 196 if (!ret) {
197 *odir = '\0';
83ea422a 198 ret = bssplit_ddir(&td->o, DDIR_READ, str);
720e84ad
JA		 199 }
200 } else {
201 char *op;
202
203 op = strdup(str);
d79db122 204 ret = bssplit_ddir(&td->o, DDIR_WRITE, op);
6eaf09d6 205 free(op);
720e84ad 206
6eaf09d6
SL		 207 if (!ret) {
208 op = strdup(str);
d79db122 209 ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
6eaf09d6
SL		 210 free(op);
211 }
83ea422a 212 ret = bssplit_ddir(&td->o, DDIR_READ, str);
720e84ad 213 }
564ca972
JA		 214
215 free(p);
720e84ad 216 return ret;
564ca972
JA		 217}
218
8b28bd41
DM		 219static int str2error(char *str)
220{
a94eb99a 221 const char *err[] = { "EPERM", "ENOENT", "ESRCH", "EINTR", "EIO",
8b28bd41
DM		 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",
a94eb99a 228 "EROFS","EMLINK", "EPIPE", "EDOM", "ERANGE" };
8b28bd41
DM		 229 int i = 0, num = sizeof(err) / sizeof(void *);
230
a94eb99a 231 while (i < num) {
8b28bd41
DM		 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)
1616e025 272 error[i] = -error[i];
8b28bd41
DM		 273 }
274 if (!error[i]) {
275 log_err("Unknown error %s, please use number value \n",
276 fname);
0fddbf7a 277 free(error);
8b28bd41
DM		 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;
c7b086be
JA		 286 } else
287 free(error);
288
8b28bd41
DM		 289 return 0;
290
291}
292
293static int str_ignore_error_cb(void *data, const char *input)
294{
295 struct thread_data *td = data;
296 char *str, *p, *n;
297 int type = 0, ret = 1;
52c0cea3
JA		 298
299 if (parse_dryrun())
300 return 0;
301
8b28bd41
DM		 302 p = str = strdup(input);
303
304 strip_blank_front(&str);
305 strip_blank_end(str);
306
307 while (p) {
308 n = strchr(p, ',');
309 if (n)
310 *n++ = '\0';
311 ret = ignore_error_type(td, type, p);
312 if (ret)
313 break;
314 p = n;
315 type++;
316 }
317 free(str);
318 return ret;
319}
320
211097b2
JA		 321static int str_rw_cb(void *data, const char *str)
322{
323 struct thread_data *td = data;
83ea422a 324 struct thread_options *o = &td->o;
27ca949f 325 char *nr;
211097b2 326
52c0cea3
JA		 327 if (parse_dryrun())
328 return 0;
329
83ea422a
JA		 330 o->ddir_seq_nr = 1;
331 o->ddir_seq_add = 0;
059b0802 332
27ca949f 333 nr = get_opt_postfix(str);
059b0802
JA		 334 if (!nr)
335 return 0;
336
337 if (td_random(td))
83ea422a 338 o->ddir_seq_nr = atoi(nr);
059b0802
JA		 339 else {
340 long long val;
341
0de5b26f 342 if (str_to_decimal(nr, &val, 1, o, 0)) {
059b0802
JA		 343 log_err("fio: rw postfix parsing failed\n");
344 free(nr);
345 return 1;
346 }
347
83ea422a 348 o->ddir_seq_add = val;
182ec6ee 349 }
211097b2 350
059b0802 351 free(nr);
211097b2
JA		 352 return 0;
353}
354
214e1eca
JA		 355static int str_mem_cb(void *data, const char *mem)
356{
357 struct thread_data *td = data;
358
d9759b1e 359 if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP)
836fcc0f 360 td->o.mmapfile = get_opt_postfix(mem);
214e1eca
JA		 361
362 return 0;
363}
364
c223da83
JA		 365static int fio_clock_source_cb(void *data, const char *str)
366{
367 struct thread_data *td = data;
368
369 fio_clock_source = td->o.clocksource;
fa80feae 370 fio_clock_source_set = 1;
01423eae 371 fio_clock_init();
c223da83
JA		 372 return 0;
373}
374
85bc833b 375static int str_rwmix_read_cb(void *data, unsigned long long *val)
cb499fc4
JA		 376{
377 struct thread_data *td = data;
378
379 td->o.rwmix[DDIR_READ] = *val;
380 td->o.rwmix[DDIR_WRITE] = 100 - *val;
381 return 0;
382}
383
85bc833b 384static int str_rwmix_write_cb(void *data, unsigned long long *val)
cb499fc4
JA		 385{
386 struct thread_data *td = data;
387
388 td->o.rwmix[DDIR_WRITE] = *val;
389 td->o.rwmix[DDIR_READ] = 100 - *val;
390 return 0;
391}
392
214e1eca
JA		 393static int str_exitall_cb(void)
394{
395 exitall_on_terminate = 1;
396 return 0;
397}
398
214e1eca 399#ifdef FIO_HAVE_CPU_AFFINITY
50b5860b 400int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu_index)
c2acfbac 401{
50b5860b 402 unsigned int i, index, cpus_in_mask;
c2acfbac 403 const long max_cpu = cpus_online();
c2acfbac 404
50b5860b
JA		 405 cpus_in_mask = fio_cpu_count(mask);
406 cpu_index = cpu_index % cpus_in_mask;
407
408 index = 0;
c2acfbac 409 for (i = 0; i < max_cpu; i++) {
50b5860b 410 if (!fio_cpu_isset(mask, i))
c2acfbac 411 continue;
50b5860b
JA		 412
413 if (cpu_index != index)
414 fio_cpu_clear(mask, i);
415
416 index++;
c2acfbac
JA		 417 }
418
419 return fio_cpu_count(mask);
420}
421
85bc833b 422static int str_cpumask_cb(void *data, unsigned long long *val)
d2e268b0
JA		 423{
424 struct thread_data *td = data;
214e1eca 425 unsigned int i;
b03daafb 426 long max_cpu;
d2ce18b5
JA		 427 int ret;
428
52c0cea3
JA		 429 if (parse_dryrun())
430 return 0;
431
d2ce18b5
JA		 432 ret = fio_cpuset_init(&td->o.cpumask);
433 if (ret < 0) {
434 log_err("fio: cpuset_init failed\n");
435 td_verror(td, ret, "fio_cpuset_init");
436 return 1;
437 }
214e1eca 438
c00a2289 439 max_cpu = cpus_online();
214e1eca 440
62a7273d
JA		 441 for (i = 0; i < sizeof(int) * 8; i++) {
442 if ((1 << i) & *val) {
b03daafb
JA		 443 if (i > max_cpu) {
444 log_err("fio: CPU %d too large (max=%ld)\n", i,
445 max_cpu);
446 return 1;
447 }
62a7273d 448 dprint(FD_PARSE, "set cpu allowed %d\n", i);
6d459ee7 449 fio_cpu_set(&td->o.cpumask, i);
62a7273d
JA		 450 }
451 }
d2e268b0
JA		 452
453 td->o.cpumask_set = 1;
454 return 0;
214e1eca
JA		 455}
456
e8462bd8
JA		 457static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
458 const char *input)
214e1eca 459{
d2e268b0 460 char *cpu, *str, *p;
b03daafb 461 long max_cpu;
19608d6c 462 int ret = 0;
d2e268b0 463
e8462bd8 464 ret = fio_cpuset_init(mask);
d2ce18b5
JA		 465 if (ret < 0) {
466 log_err("fio: cpuset_init failed\n");
467 td_verror(td, ret, "fio_cpuset_init");
468 return 1;
469 }
d2e268b0
JA		 470
471 p = str = strdup(input);
214e1eca 472
d2e268b0
JA		 473 strip_blank_front(&str);
474 strip_blank_end(str);
475
c00a2289 476 max_cpu = cpus_online();
b03daafb 477
d2e268b0 478 while ((cpu = strsep(&str, ",")) != NULL) {
62a7273d
JA		 479 char *str2, *cpu2;
480 int icpu, icpu2;
481
d2e268b0
JA		 482 if (!strlen(cpu))
483 break;
62a7273d
JA		 484
485 str2 = cpu;
486 icpu2 = -1;
487 while ((cpu2 = strsep(&str2, "-")) != NULL) {
488 if (!strlen(cpu2))
489 break;
490
491 icpu2 = atoi(cpu2);
492 }
493
494 icpu = atoi(cpu);
495 if (icpu2 == -1)
496 icpu2 = icpu;
497 while (icpu <= icpu2) {
6d459ee7 498 if (icpu >= FIO_MAX_CPUS) {
19608d6c 499 log_err("fio: your OS only supports up to"
6d459ee7 500 " %d CPUs\n", (int) FIO_MAX_CPUS);
19608d6c
JA		 501 ret = 1;
502 break;
503 }
b03daafb
JA		 504 if (icpu > max_cpu) {
505 log_err("fio: CPU %d too large (max=%ld)\n",
506 icpu, max_cpu);
507 ret = 1;
508 break;
509 }
0b9d69ec 510
62a7273d 511 dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
e8462bd8 512 fio_cpu_set(mask, icpu);
62a7273d
JA		 513 icpu++;
514 }
19608d6c
JA		 515 if (ret)
516 break;
d2e268b0
JA		 517 }
518
519 free(p);
19608d6c
JA		 520 if (!ret)
521 td->o.cpumask_set = 1;
522 return ret;
214e1eca 523}
e8462bd8
JA		 524
525static int str_cpus_allowed_cb(void *data, const char *input)
526{
527 struct thread_data *td = data;
528 int ret;
529
52c0cea3
JA		 530 if (parse_dryrun())
531 return 0;
532
e8462bd8
JA		 533 ret = set_cpus_allowed(td, &td->o.cpumask, input);
534 if (!ret)
535 td->o.cpumask_set = 1;
536
537 return ret;
538}
539
540static int str_verify_cpus_allowed_cb(void *data, const char *input)
541{
542 struct thread_data *td = data;
543 int ret;
544
545 ret = set_cpus_allowed(td, &td->o.verify_cpumask, input);
546 if (!ret)
547 td->o.verify_cpumask_set = 1;
548
549 return ret;
550}
d2e268b0 551#endif
214e1eca 552
67bf9823 553#ifdef CONFIG_LIBNUMA
d0b937ed
YR		 554static int str_numa_cpunodes_cb(void *data, char *input)
555{
556 struct thread_data *td = data;
43522848 557 struct bitmask *verify_bitmask;
d0b937ed 558
52c0cea3
JA		 559 if (parse_dryrun())
560 return 0;
561
d0b937ed
YR		 562 /* numa_parse_nodestring() parses a character string list
563 * of nodes into a bit mask. The bit mask is allocated by
564 * numa_allocate_nodemask(), so it should be freed by
565 * numa_free_nodemask().
566 */
43522848
DG		 567 verify_bitmask = numa_parse_nodestring(input);
568 if (verify_bitmask == NULL) {
d0b937ed
YR		 569 log_err("fio: numa_parse_nodestring failed\n");
570 td_verror(td, 1, "str_numa_cpunodes_cb");
571 return 1;
572 }
43522848 573 numa_free_nodemask(verify_bitmask);
d0b937ed 574
43522848 575 td->o.numa_cpunodes = strdup(input);
d0b937ed
YR		 576 td->o.numa_cpumask_set = 1;
577 return 0;
578}
579
580static int str_numa_mpol_cb(void *data, char *input)
581{
582 struct thread_data *td = data;
583 const char * const policy_types[] =
05d6f44b 584 { "default", "prefer", "bind", "interleave", "local", NULL };
d0b937ed 585 int i;
52c0cea3 586 char *nodelist;
43522848 587 struct bitmask *verify_bitmask;
52c0cea3
JA		 588
589 if (parse_dryrun())
590 return 0;
d0b937ed 591
52c0cea3 592 nodelist = strchr(input, ':');
d0b937ed
YR		 593 if (nodelist) {
594 /* NUL-terminate mode */
595 *nodelist++ = '\0';
596 }
597
598 for (i = 0; i <= MPOL_LOCAL; i++) {
599 if (!strcmp(input, policy_types[i])) {
600 td->o.numa_mem_mode = i;
601 break;
602 }
603 }
604 if (i > MPOL_LOCAL) {
605 log_err("fio: memory policy should be: default, prefer, bind, interleave, local\n");
606 goto out;
607 }
608
609 switch (td->o.numa_mem_mode) {
610 case MPOL_PREFERRED:
611 /*
612 * Insist on a nodelist of one node only
613 */
614 if (nodelist) {
615 char *rest = nodelist;
616 while (isdigit(*rest))
617 rest++;
618 if (*rest) {
619 log_err("fio: one node only for \'prefer\'\n");
620 goto out;
621 }
622 } else {
623 log_err("fio: one node is needed for \'prefer\'\n");
624 goto out;
625 }
626 break;
627 case MPOL_INTERLEAVE:
628 /*
629 * Default to online nodes with memory if no nodelist
630 */
631 if (!nodelist)
632 nodelist = strdup("all");
633 break;
634 case MPOL_LOCAL:
635 case MPOL_DEFAULT:
636 /*
637 * Don't allow a nodelist
638 */
639 if (nodelist) {
640 log_err("fio: NO nodelist for \'local\'\n");
641 goto out;
642 }
643 break;
644 case MPOL_BIND:
645 /*
646 * Insist on a nodelist
647 */
648 if (!nodelist) {
649 log_err("fio: a nodelist is needed for \'bind\'\n");
650 goto out;
651 }
652 break;
653 }
654
655
656 /* numa_parse_nodestring() parses a character string list
657 * of nodes into a bit mask. The bit mask is allocated by
658 * numa_allocate_nodemask(), so it should be freed by
659 * numa_free_nodemask().
660 */
661 switch (td->o.numa_mem_mode) {
662 case MPOL_PREFERRED:
663 td->o.numa_mem_prefer_node = atoi(nodelist);
664 break;
665 case MPOL_INTERLEAVE:
666 case MPOL_BIND:
43522848
DG		 667 verify_bitmask = numa_parse_nodestring(nodelist);
668 if (verify_bitmask == NULL) {
d0b937ed
YR		 669 log_err("fio: numa_parse_nodestring failed\n");
670 td_verror(td, 1, "str_numa_memnodes_cb");
671 return 1;
672 }
43522848
DG		 673 td->o.numa_memnodes = strdup(nodelist);
674 numa_free_nodemask(verify_bitmask);
b74e419e 675
d0b937ed
YR		 676 break;
677 case MPOL_LOCAL:
678 case MPOL_DEFAULT:
679 default:
680 break;
681 }
682
683 td->o.numa_memmask_set = 1;
684 return 0;
685
686out:
687 return 1;
688}
689#endif
690
214e1eca
JA		 691static int str_fst_cb(void *data, const char *str)
692{
693 struct thread_data *td = data;
694 char *nr = get_opt_postfix(str);
695
696 td->file_service_nr = 1;
182ec6ee 697 if (nr) {
214e1eca 698 td->file_service_nr = atoi(nr);
182ec6ee
JA		 699 free(nr);
700 }
214e1eca
JA		 701
702 return 0;
703}
704
67bf9823 705#ifdef CONFIG_SYNC_FILE_RANGE
44f29692
JA		 706static int str_sfr_cb(void *data, const char *str)
707{
708 struct thread_data *td = data;
709 char *nr = get_opt_postfix(str);
710
711 td->sync_file_range_nr = 1;
712 if (nr) {
713 td->sync_file_range_nr = atoi(nr);
714 free(nr);
715 }
716
717 return 0;
718}
3ae06371 719#endif
44f29692 720
e25839d4
JA		 721static int str_random_distribution_cb(void *data, const char *str)
722{
723 struct thread_data *td = data;
724 double val;
725 char *nr;
726
52c0cea3
JA		 727 if (parse_dryrun())
728 return 0;
729
925fee33
JA		 730 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
731 val = 1.1;
732 else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
733 val = 0.2;
734 else
e25839d4
JA		 735 return 0;
736
737 nr = get_opt_postfix(str);
925fee33 738 if (nr && !str_to_float(nr, &val)) {
e25839d4
JA		 739 log_err("fio: random postfix parsing failed\n");
740 free(nr);
741 return 1;
742 }
743
078189c1
JA		 744 free(nr);
745
18ded917
JA		 746 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
747 if (val == 1.00) {
748 log_err("fio: zipf theta must different than 1.0\n");
749 return 1;
750 }
1e5324e7 751 td->o.zipf_theta.u.f = val;
18ded917 752 } else {
078189c1
JA		 753 if (val <= 0.00 || val >= 1.00) {
754 log_err("fio: pareto input out of range (0 < input < 1.0)\n");
755 return 1;
756 }
1e5324e7 757 td->o.pareto_h.u.f = val;
fcef0b35 758 }
921c766f
JA		 759
760 return 0;
761}
762
8e827d35 763/*
bcbfeefa 764 * Return next name in the string. Files are separated with ':'. If the ':'
8e827d35
JA		 765 * is escaped with a '\', then that ':' is part of the filename and does not
766 * indicate a new file.
767 */
bcbfeefa 768static char *get_next_name(char **ptr)
8e827d35
JA		 769{
770 char *str = *ptr;
771 char *p, *start;
772
773 if (!str || !strlen(str))
774 return NULL;
775
776 start = str;
777 do {
778 /*
779 * No colon, we are done
780 */
781 p = strchr(str, ':');
782 if (!p) {
783 *ptr = NULL;
784 break;
785 }
786
787 /*
788 * We got a colon, but it's the first character. Skip and
789 * continue
790 */
791 if (p == start) {
792 str = ++start;
793 continue;
794 }
795
796 if (*(p - 1) != '\\') {
797 *p = '\0';
798 *ptr = p + 1;
799 break;
800 }
801
802 memmove(p - 1, p, strlen(p) + 1);
803 str = p;
804 } while (1);
805
806 return start;
807}
808
bcbfeefa
CE		 809
810static int get_max_name_idx(char *input)
811{
812 unsigned int cur_idx;
813 char *str, *p;
814
815 p = str = strdup(input);
816 for (cur_idx = 0; ; cur_idx++)
817 if (get_next_name(&str) == NULL)
818 break;
819
820 free(p);
821 return cur_idx;
822}
823
824/*
825 * Returns the directory at the index, indexes > entires will be
826 * assigned via modulo division of the index
827 */
828int set_name_idx(char *target, char *input, int index)
829{
830 unsigned int cur_idx;
831 int len;
832 char *fname, *str, *p;
833
834 p = str = strdup(input);
835
836 index %= get_max_name_idx(input);
837 for (cur_idx = 0; cur_idx <= index; cur_idx++)
838 fname = get_next_name(&str);
839
840 len = sprintf(target, "%s/", fname);
841 free(p);
842
843 return len;
844}
845
214e1eca
JA		 846static int str_filename_cb(void *data, const char *input)
847{
848 struct thread_data *td = data;
849 char *fname, *str, *p;
850
851 p = str = strdup(input);
852
853 strip_blank_front(&str);
854 strip_blank_end(str);
855
856 if (!td->files_index)
2dc1bbeb 857 td->o.nr_files = 0;
214e1eca 858
bcbfeefa 859 while ((fname = get_next_name(&str)) != NULL) {
214e1eca
JA		 860 if (!strlen(fname))
861 break;
5903e7b7 862 add_file(td, fname, 0, 1);
214e1eca
JA		 863 }
864
865 free(p);
866 return 0;
867}
868
bcbfeefa 869static int str_directory_cb(void *data, const char fio_unused *unused)
214e1eca
JA		 870{
871 struct thread_data *td = data;
872 struct stat sb;
bcbfeefa
CE		 873 char *dirname, *str, *p;
874 int ret = 0;
214e1eca 875
f9633d72
JA		 876 if (parse_dryrun())
877 return 0;
878
bcbfeefa
CE		 879 p = str = strdup(td->o.directory);
880 while ((dirname = get_next_name(&str)) != NULL) {
881 if (lstat(dirname, &sb) < 0) {
882 ret = errno;
921c766f 883
bcbfeefa
CE		 884 log_err("fio: %s is not a directory\n", dirname);
885 td_verror(td, ret, "lstat");
886 goto out;
887 }
888 if (!S_ISDIR(sb.st_mode)) {
889 log_err("fio: %s is not a directory\n", dirname);
890 ret = 1;
891 goto out;
892 }
214e1eca
JA		 893 }
894
bcbfeefa
CE		 895out:
896 free(p);
897 return ret;
214e1eca
JA		 898}
899
f2a2803a
JA		 900static int str_lockfile_cb(void *data, const char fio_unused *str)
901{
902 struct thread_data *td = data;
903
904 if (td->files_index) {
905 log_err("fio: lockfile= option must precede filename=\n");
906 return 1;
907 }
908
909 return 0;
910}
911
214e1eca
JA		 912static int str_opendir_cb(void *data, const char fio_unused *str)
913{
914 struct thread_data *td = data;
915
52c0cea3
JA		 916 if (parse_dryrun())
917 return 0;
918
214e1eca 919 if (!td->files_index)
2dc1bbeb 920 td->o.nr_files = 0;
214e1eca 921
2dc1bbeb 922 return add_dir_files(td, td->o.opendir);
214e1eca
JA		 923}
924
ce35b1ec
JA		 925static int pattern_cb(char *pattern, unsigned int max_size,
926 const char *input, unsigned int *pattern_bytes)
90059d65 927{
0e92f873 928 long off;
ce35b1ec
JA		 929 int i = 0, j = 0, len, k, base = 10;
930 uint32_t pattern_length;
3c3ed070 931 char *loc1, *loc2;
0e92f873
RR		 932
933 loc1 = strstr(input, "0x");
934 loc2 = strstr(input, "0X");
935 if (loc1 || loc2)
936 base = 16;
937 off = strtol(input, NULL, base);
938 if (off != LONG_MAX || errno != ERANGE) {
939 while (off) {
ce35b1ec 940 pattern[i] = off & 0xff;
0e92f873
RR		 941 off >>= 8;
942 i++;
943 }
944 } else {
945 len = strlen(input);
946 k = len - 1;
947 if (base == 16) {
948 if (loc1)
949 j = loc1 - input + 2;
950 else
951 j = loc2 - input + 2;
952 } else
953 return 1;
ce35b1ec 954 if (len - j < max_size * 2) {
0e92f873
RR		 955 while (k >= j) {
956 off = converthexchartoint(input[k--]);
957 if (k >= j)
958 off += (converthexchartoint(input[k--])
959 * 16);
ce35b1ec 960 pattern[i++] = (char) off;
0e92f873
RR		 961 }
962 }
963 }
efcd9dcc
SL		 964
965 /*
966 * Fill the pattern all the way to the end. This greatly reduces
967 * the number of memcpy's we have to do when verifying the IO.
968 */
e078de4a 969 pattern_length = i;
ce35b1ec
JA		 970 while (i > 1 && i * 2 <= max_size) {
971 memcpy(&pattern[i], &pattern[0], i);
efcd9dcc
SL		 972 i *= 2;
973 }
e078de4a
JA		 974
975 /*
976 * Fill remainder, if the pattern multiple ends up not being
ce35b1ec 977 * max_size.
e078de4a 978 */
ce35b1ec
JA		 979 while (i > 1 && i < max_size) {
980 unsigned int b = min(pattern_length, max_size - i);
e078de4a 981
ce35b1ec 982 memcpy(&pattern[i], &pattern[0], b);
e078de4a
JA		 983 i += b;
984 }
985
9a2a86d0
SL		 986 if (i == 1) {
987 /*
988 * The code in verify_io_u_pattern assumes a single byte pattern
989 * fills the whole verify pattern buffer.
990 */
ce35b1ec
JA		 991 memset(pattern, pattern[0], max_size);
992 }
993
994 *pattern_bytes = i;
995 return 0;
996}
997
998static int str_buffer_pattern_cb(void *data, const char *input)
999{
1000 struct thread_data *td = data;
1001 int ret;
1002
1003 ret = pattern_cb(td->o.buffer_pattern, MAX_PATTERN_SIZE, input,
1004 &td->o.buffer_pattern_bytes);
1005
1006 if (!ret) {
1007 td->o.refill_buffers = 0;
1008 td->o.scramble_buffers = 0;
1009 td->o.zero_buffers = 0;
9a2a86d0 1010 }
efcd9dcc 1011
ce35b1ec
JA		 1012 return ret;
1013}
1014
bedc9dc2
JA		 1015static int str_buffer_compress_cb(void *data, unsigned long long *il)
1016{
1017 struct thread_data *td = data;
1018
1019 td->flags |= TD_F_COMPRESS;
1020 td->o.compress_percentage = *il;
1021 return 0;
1022}
1023
ce35b1ec
JA		 1024static int str_verify_pattern_cb(void *data, const char *input)
1025{
1026 struct thread_data *td = data;
1027 int ret;
1028
1029 ret = pattern_cb(td->o.verify_pattern, MAX_PATTERN_SIZE, input,
1030 &td->o.verify_pattern_bytes);
efcd9dcc 1031
92bf48d5
JA		 1032 /*
1033 * VERIFY_META could already be set
1034 */
ce35b1ec 1035 if (!ret && td->o.verify == VERIFY_NONE)
92bf48d5 1036 td->o.verify = VERIFY_PATTERN;
efcd9dcc 1037
ce35b1ec 1038 return ret;
90059d65 1039}
214e1eca 1040
993bf48b
JA		 1041static int str_gtod_reduce_cb(void *data, int *il)
1042{
1043 struct thread_data *td = data;
1044 int val = *il;
1045
02af0988 1046 td->o.disable_lat = !!val;
993bf48b
JA		 1047 td->o.disable_clat = !!val;
1048 td->o.disable_slat = !!val;
1049 td->o.disable_bw = !!val;
0dc1bc03 1050 td->o.clat_percentiles = !val;
993bf48b
JA		 1051 if (val)
1052 td->tv_cache_mask = 63;
1053
1054 return 0;
1055}
1056
85bc833b 1057static int str_gtod_cpu_cb(void *data, long long *il)
be4ecfdf
JA		 1058{
1059 struct thread_data *td = data;
1060 int val = *il;
1061
1062 td->o.gtod_cpu = val;
1063 td->o.gtod_offload = 1;
1064 return 0;
1065}
1066
7bb59102
JA		 1067static int str_size_cb(void *data, unsigned long long *__val)
1068{
1069 struct thread_data *td = data;
1070 unsigned long long v = *__val;
1071
1072 if (parse_is_percent(v)) {
1073 td->o.size = 0;
1074 td->o.size_percent = -1ULL - v;
1075 } else
1076 td->o.size = v;
1077
1078 return 0;
1079}
1080
896cac2a
JA		 1081static int rw_verify(struct fio_option *o, void *data)
1082{
1083 struct thread_data *td = data;
1084
1085 if (read_only && td_write(td)) {
1086 log_err("fio: job <%s> has write bit set, but fio is in"
1087 " read-only mode\n", td->o.name);
1088 return 1;
1089 }
1090
1091 return 0;
1092}
1093
276ca4f7 1094static int gtod_cpu_verify(struct fio_option *o, void *data)
29d43ff9 1095{
276ca4f7 1096#ifndef FIO_HAVE_CPU_AFFINITY
29d43ff9
JA		 1097 struct thread_data *td = data;
1098
29d43ff9
JA		 1099 if (td->o.gtod_cpu) {
1100 log_err("fio: platform must support CPU affinity for"
1101 "gettimeofday() offloading\n");
1102 return 1;
1103 }
1104#endif
1105
1106 return 0;
1107}
1108
9af4a244
JA		 1109/*
1110 * Option grouping
1111 */
1112static struct opt_group fio_opt_groups[] = {
1113 {
e8b0e958
JA		 1114 .name = "General",
1115 .mask = FIO_OPT_C_GENERAL,
9af4a244
JA		 1116 },
1117 {
e8b0e958
JA		 1118 .name = "I/O",
1119 .mask = FIO_OPT_C_IO,
9af4a244
JA		 1120 },
1121 {
e8b0e958
JA		 1122 .name = "File",
1123 .mask = FIO_OPT_C_FILE,
9af4a244
JA		 1124 },
1125 {
e8b0e958
JA		 1126 .name = "Statistics",
1127 .mask = FIO_OPT_C_STAT,
9af4a244
JA		 1128 },
1129 {
e8b0e958
JA		 1130 .name = "Logging",
1131 .mask = FIO_OPT_C_LOG,
9af4a244 1132 },
13fca827
JA		 1133 {
1134 .name = "Profiles",
1135 .mask = FIO_OPT_C_PROFILE,
1136 },
e231bbe6 1137 {
e8b0e958 1138 .name = NULL,
e231bbe6 1139 },
e8b0e958
JA		 1140};
1141
1142static struct opt_group *__opt_group_from_mask(struct opt_group *ogs, unsigned int *mask,
1143 unsigned int inv_mask)
1144{
1145 struct opt_group *og;
1146 int i;
1147
1148 if (*mask == inv_mask || !*mask)
1149 return NULL;
1150
1151 for (i = 0; ogs[i].name; i++) {
1152 og = &ogs[i];
1153
1154 if (*mask & og->mask) {
1155 *mask &= ~(og->mask);
1156 return og;
1157 }
1158 }
1159
1160 return NULL;
1161}
1162
1163struct opt_group *opt_group_from_mask(unsigned int *mask)
1164{
1165 return __opt_group_from_mask(fio_opt_groups, mask, FIO_OPT_C_INVALID);
1166}
1167
1168static struct opt_group fio_opt_cat_groups[] = {
3e260a46
JA		 1169 {
1170 .name = "Latency profiling",
1171 .mask = FIO_OPT_G_LATPROF,
1172 },
9af4a244 1173 {
e8b0e958
JA		 1174 .name = "Rate",
1175 .mask = FIO_OPT_G_RATE,
9af4a244
JA		 1176 },
1177 {
e8b0e958
JA		 1178 .name = "Zone",
1179 .mask = FIO_OPT_G_ZONE,
9af4a244
JA		 1180 },
1181 {
e8b0e958
JA		 1182 .name = "Read/write mix",
1183 .mask = FIO_OPT_G_RWMIX,
9af4a244
JA		 1184 },
1185 {
1186 .name = "Verify",
1187 .mask = FIO_OPT_G_VERIFY,
1188 },
1189 {
e8b0e958
JA		 1190 .name = "Trim",
1191 .mask = FIO_OPT_G_TRIM,
9af4a244
JA		 1192 },
1193 {
e8b0e958
JA		 1194 .name = "I/O Logging",
1195 .mask = FIO_OPT_G_IOLOG,
9af4a244
JA		 1196 },
1197 {
e8b0e958
JA		 1198 .name = "I/O Depth",
1199 .mask = FIO_OPT_G_IO_DEPTH,
9af4a244
JA		 1200 },
1201 {
e8b0e958
JA		 1202 .name = "I/O Flow",
1203 .mask = FIO_OPT_G_IO_FLOW,
9af4a244 1204 },
0626037e
JA		 1205 {
1206 .name = "Description",
1207 .mask = FIO_OPT_G_DESC,
1208 },
1209 {
1210 .name = "Filename",
1211 .mask = FIO_OPT_G_FILENAME,
1212 },
1213 {
1214 .name = "General I/O",
1215 .mask = FIO_OPT_G_IO_BASIC,
1216 },
a1f6afec
JA		 1217 {
1218 .name = "Cgroups",
1219 .mask = FIO_OPT_G_CGROUP,
1220 },
1221 {
1222 .name = "Runtime",
1223 .mask = FIO_OPT_G_RUNTIME,
1224 },
10860056
JA		 1225 {
1226 .name = "Process",
1227 .mask = FIO_OPT_G_PROCESS,
1228 },
1229 {
1230 .name = "Job credentials / priority",
1231 .mask = FIO_OPT_G_CRED,
1232 },
1233 {
1234 .name = "Clock settings",
1235 .mask = FIO_OPT_G_CLOCK,
1236 },
3ceb458f
JA		 1237 {
1238 .name = "I/O Type",
1239 .mask = FIO_OPT_G_IO_TYPE,
1240 },
1241 {
1242 .name = "I/O Thinktime",
1243 .mask = FIO_OPT_G_THINKTIME,
1244 },
1245 {
1246 .name = "Randomizations",
1247 .mask = FIO_OPT_G_RANDOM,
1248 },
1249 {
1250 .name = "I/O buffers",
1251 .mask = FIO_OPT_G_IO_BUF,
1252 },
13fca827
JA		 1253 {
1254 .name = "Tiobench profile",
1255 .mask = FIO_OPT_G_TIOBENCH,
1256 },
1257
9af4a244
JA		 1258 {
1259 .name = NULL,
e8b0e958 1260 }
9af4a244
JA		 1261};
1262
e8b0e958 1263struct opt_group *opt_group_cat_from_mask(unsigned int *mask)
9af4a244 1264{
e8b0e958 1265 return __opt_group_from_mask(fio_opt_cat_groups, mask, FIO_OPT_G_INVALID);
9af4a244
JA		 1266}
1267
214e1eca
JA		 1268/*
1269 * Map of job/command line options
1270 */
9af4a244 1271struct fio_option fio_options[FIO_MAX_OPTS] = {
214e1eca
JA		 1272 {
1273 .name = "description",
e8b0e958 1274 .lname = "Description of job",
214e1eca
JA		 1275 .type = FIO_OPT_STR_STORE,
1276 .off1 = td_var_offset(description),
1277 .help = "Text job description",
e8b0e958 1278 .category = FIO_OPT_C_GENERAL,
0626037e 1279 .group = FIO_OPT_G_DESC,
214e1eca
JA		 1280 },
1281 {
1282 .name = "name",
e8b0e958 1283 .lname = "Job name",
214e1eca
JA		 1284 .type = FIO_OPT_STR_STORE,
1285 .off1 = td_var_offset(name),
1286 .help = "Name of this job",
e8b0e958 1287 .category = FIO_OPT_C_GENERAL,
0626037e 1288 .group = FIO_OPT_G_DESC,
214e1eca 1289 },
214e1eca
JA		 1290 {
1291 .name = "filename",
e8b0e958 1292 .lname = "Filename(s)",
214e1eca
JA		 1293 .type = FIO_OPT_STR_STORE,
1294 .off1 = td_var_offset(filename),
1295 .cb = str_filename_cb,
f0d524b0 1296 .prio = -1, /* must come after "directory" */
214e1eca 1297 .help = "File(s) to use for the workload",
e8b0e958 1298 .category = FIO_OPT_C_FILE,
0626037e 1299 .group = FIO_OPT_G_FILENAME,
214e1eca 1300 },
90fef2d1 1301 {
e8b0e958
JA		 1302 .name = "directory",
1303 .lname = "Directory",
1304 .type = FIO_OPT_STR_STORE,
1305 .off1 = td_var_offset(directory),
1306 .cb = str_directory_cb,
1307 .help = "Directory to store files in",
1308 .category = FIO_OPT_C_FILE,
0626037e 1309 .group = FIO_OPT_G_FILENAME,
90fef2d1 1310 },
de98bd30
JA		 1311 {
1312 .name = "filename_format",
1313 .type = FIO_OPT_STR_STORE,
1314 .off1 = td_var_offset(filename_format),
1315 .prio = -1, /* must come after "directory" */
1316 .help = "Override default $jobname.$jobnum.$filenum naming",
1317 .def = "$jobname.$jobnum.$filenum",
93bb626a
JA		 1318 .category = FIO_OPT_C_FILE,
1319 .group = FIO_OPT_G_FILENAME,
ad705bcb 1320 },
29c1349f
JA		 1321 {
1322 .name = "lockfile",
e8b0e958 1323 .lname = "Lockfile",
4d4e80f2 1324 .type = FIO_OPT_STR,
4d4e80f2 1325 .off1 = td_var_offset(file_lock_mode),
29c1349f 1326 .help = "Lock file when doing IO to it",
bc6a0a5d 1327 .prio = 1,
29c1349f 1328 .parent = "filename",
d71c154c 1329 .hide = 0,
4d4e80f2 1330 .def = "none",
f2a2803a 1331 .cb = str_lockfile_cb,
e8b0e958 1332 .category = FIO_OPT_C_FILE,
0626037e 1333 .group = FIO_OPT_G_FILENAME,
4d4e80f2
JA		 1334 .posval = {
1335 { .ival = "none",
1336 .oval = FILE_LOCK_NONE,
1337 .help = "No file locking",
1338 },
1339 { .ival = "exclusive",
1340 .oval = FILE_LOCK_EXCLUSIVE,
1341 .help = "Exclusive file lock",
1342 },
1343 {
1344 .ival = "readwrite",
1345 .oval = FILE_LOCK_READWRITE,
1346 .help = "Read vs write lock",
1347 },
1348 },
29c1349f 1349 },
214e1eca
JA		 1350 {
1351 .name = "opendir",
e8b0e958 1352 .lname = "Open directory",
214e1eca
JA		 1353 .type = FIO_OPT_STR_STORE,
1354 .off1 = td_var_offset(opendir),
1355 .cb = str_opendir_cb,
1356 .help = "Recursively add files from this directory and down",
e8b0e958 1357 .category = FIO_OPT_C_FILE,
0626037e 1358 .group = FIO_OPT_G_FILENAME,
214e1eca
JA		 1359 },
1360 {
1361 .name = "rw",
e8b0e958 1362 .lname = "Read/write",
d3aad8f2 1363 .alias = "readwrite",
214e1eca 1364 .type = FIO_OPT_STR,
211097b2 1365 .cb = str_rw_cb,
214e1eca
JA		 1366 .off1 = td_var_offset(td_ddir),
1367 .help = "IO direction",
1368 .def = "read",
896cac2a 1369 .verify = rw_verify,
e8b0e958 1370 .category = FIO_OPT_C_IO,
0626037e 1371 .group = FIO_OPT_G_IO_BASIC,
214e1eca
JA		 1372 .posval = {
1373 { .ival = "read",
1374 .oval = TD_DDIR_READ,
1375 .help = "Sequential read",
1376 },
1377 { .ival = "write",
1378 .oval = TD_DDIR_WRITE,
1379 .help = "Sequential write",
1380 },
6eaf09d6
SL		 1381 { .ival = "trim",
1382 .oval = TD_DDIR_TRIM,
1383 .help = "Sequential trim",
1384 },
214e1eca
JA		 1385 { .ival = "randread",
1386 .oval = TD_DDIR_RANDREAD,
1387 .help = "Random read",
1388 },
1389 { .ival = "randwrite",
1390 .oval = TD_DDIR_RANDWRITE,
1391 .help = "Random write",
1392 },
6eaf09d6
SL		 1393 { .ival = "randtrim",
1394 .oval = TD_DDIR_RANDTRIM,
1395 .help = "Random trim",
1396 },
214e1eca
JA		 1397 { .ival = "rw",
1398 .oval = TD_DDIR_RW,
1399 .help = "Sequential read and write mix",
1400 },
10b023db
JA		 1401 { .ival = "readwrite",
1402 .oval = TD_DDIR_RW,
1403 .help = "Sequential read and write mix",
1404 },
214e1eca
JA		 1405 { .ival = "randrw",
1406 .oval = TD_DDIR_RANDRW,
1407 .help = "Random read and write mix"
1408 },
1409 },
1410 },
38dad62d
JA		 1411 {
1412 .name = "rw_sequencer",
e8b0e958 1413 .lname = "RW Sequencer",
38dad62d
JA		 1414 .type = FIO_OPT_STR,
1415 .off1 = td_var_offset(rw_seq),
1416 .help = "IO offset generator modifier",
1417 .def = "sequential",
e8b0e958 1418 .category = FIO_OPT_C_IO,
0626037e 1419 .group = FIO_OPT_G_IO_BASIC,
38dad62d
JA		 1420 .posval = {
1421 { .ival = "sequential",
1422 .oval = RW_SEQ_SEQ,
1423 .help = "Generate sequential offsets",
1424 },
1425 { .ival = "identical",
1426 .oval = RW_SEQ_IDENT,
1427 .help = "Generate identical offsets",
1428 },
1429 },
1430 },
1431
214e1eca
JA		 1432 {
1433 .name = "ioengine",
e8b0e958 1434 .lname = "IO Engine",
214e1eca
JA		 1435 .type = FIO_OPT_STR_STORE,
1436 .off1 = td_var_offset(ioengine),
1437 .help = "IO engine to use",
58483fa4 1438 .def = FIO_PREFERRED_ENGINE,
e8b0e958 1439 .category = FIO_OPT_C_IO,
0626037e 1440 .group = FIO_OPT_G_IO_BASIC,
214e1eca
JA		 1441 .posval = {
1442 { .ival = "sync",
1443 .help = "Use read/write",
1444 },
a31041ea 1445 { .ival = "psync",
1446 .help = "Use pread/pwrite",
1447 },
1d2af02a 1448 { .ival = "vsync",
03e20d68 1449 .help = "Use readv/writev",
1d2af02a 1450 },
07fc0acd
JA		 1451#ifdef CONFIG_PWRITEV
1452 { .ival = "pvsync",
1453 .help = "Use preadv/pwritev",
1454 },
1455#endif
67bf9823 1456#ifdef CONFIG_LIBAIO
214e1eca
JA		 1457 { .ival = "libaio",
1458 .help = "Linux native asynchronous IO",
1459 },
1460#endif
67bf9823 1461#ifdef CONFIG_POSIXAIO
214e1eca
JA		 1462 { .ival = "posixaio",
1463 .help = "POSIX asynchronous IO",
1464 },
417f0068 1465#endif
997843cb 1466#ifdef CONFIG_SOLARISAIO
417f0068
JA		 1467 { .ival = "solarisaio",
1468 .help = "Solaris native asynchronous IO",
1469 },
214e1eca 1470#endif
4700b234 1471#ifdef CONFIG_WINDOWSAIO
03e20d68 1472 { .ival = "windowsaio",
3be80071 1473 .help = "Windows native asynchronous IO"
de890a1e 1474 },
fc5c0345
DG		 1475#endif
1476#ifdef CONFIG_RBD
1477 { .ival = "rbd",
1478 .help = "Rados Block Device asynchronous IO"
1479 },
3be80071 1480#endif
214e1eca 1481 { .ival = "mmap",
03e20d68 1482 .help = "Memory mapped IO"
214e1eca 1483 },
67bf9823 1484#ifdef CONFIG_LINUX_SPLICE
214e1eca
JA		 1485 { .ival = "splice",
1486 .help = "splice/vmsplice based IO",
1487 },
9cce02e8
JA		 1488 { .ival = "netsplice",
1489 .help = "splice/vmsplice to/from the network",
1490 },
214e1eca
JA		 1491#endif
1492#ifdef FIO_HAVE_SGIO
1493 { .ival = "sg",
1494 .help = "SCSI generic v3 IO",
1495 },
1496#endif
1497 { .ival = "null",
1498 .help = "Testing engine (no data transfer)",
1499 },
1500 { .ival = "net",
1501 .help = "Network IO",
1502 },
214e1eca 1503 { .ival = "cpuio",
03e20d68 1504 .help = "CPU cycle burner engine",
214e1eca 1505 },
67bf9823 1506#ifdef CONFIG_GUASI
b8c82a46
JA		 1507 { .ival = "guasi",
1508 .help = "GUASI IO engine",
1509 },
79a43187
JA		 1510#endif
1511#ifdef FIO_HAVE_BINJECT
1512 { .ival = "binject",
1513 .help = "binject direct inject block engine",
1514 },
21b8aee8 1515#endif
67bf9823 1516#ifdef CONFIG_RDMA
21b8aee8 1517 { .ival = "rdma",
1518 .help = "RDMA IO engine",
1519 },
8200b8c7 1520#endif
67bf9823 1521#ifdef CONFIG_FUSION_AW
8200b8c7
JA		 1522 { .ival = "fusion-aw-sync",
1523 .help = "Fusion-io atomic write engine",
1524 },
1ecc95ca 1525#endif
997843cb 1526#ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
1ecc95ca
JA		 1527 { .ival = "e4defrag",
1528 .help = "ext4 defrag engine",
1529 },
1530#endif
997843cb 1531#ifdef CONFIG_LINUX_FALLOCATE
1ecc95ca
JA		 1532 { .ival = "falloc",
1533 .help = "fallocate() file based engine",
1534 },
b8c82a46 1535#endif
a7c386f4 1536#ifdef CONFIG_GFAPI
1537 { .ival = "gfapi",
cc47f094 1538 .help = "Glusterfs libgfapi(sync) based engine"
1539 },
1540 { .ival = "gfapi_async",
1541 .help = "Glusterfs libgfapi(async) based engine"
a7c386f4 1542 },
1543#endif
1b10477b 1544#ifdef CONFIG_LIBHDFS
b74e419e 1545 { .ival = "libhdfs",
1b10477b
MM		 1546 .help = "Hadoop Distributed Filesystem (HDFS) engine"
1547 },
1548#endif
214e1eca
JA		 1549 { .ival = "external",
1550 .help = "Load external engine (append name)",
1551 },
1552 },
1553 },
1554 {
1555 .name = "iodepth",
e8b0e958 1556 .lname = "IO Depth",
214e1eca
JA		 1557 .type = FIO_OPT_INT,
1558 .off1 = td_var_offset(iodepth),
03e20d68 1559 .help = "Number of IO buffers to keep in flight",
757aff4f 1560 .minval = 1,
20eb06bd 1561 .interval = 1,
214e1eca 1562 .def = "1",
e8b0e958 1563 .category = FIO_OPT_C_IO,
0626037e 1564 .group = FIO_OPT_G_IO_BASIC,
214e1eca
JA		 1565 },
1566 {
1567 .name = "iodepth_batch",
e8b0e958 1568 .lname = "IO Depth batch",
4950421a 1569 .alias = "iodepth_batch_submit",
214e1eca
JA		 1570 .type = FIO_OPT_INT,
1571 .off1 = td_var_offset(iodepth_batch),
d65db441 1572 .help = "Number of IO buffers to submit in one go",
afdf9352 1573 .parent = "iodepth",
d71c154c 1574 .hide = 1,
a2e6f8ac 1575 .minval = 1,
20eb06bd 1576 .interval = 1,
a2e6f8ac 1577 .def = "1",
e8b0e958 1578 .category = FIO_OPT_C_IO,
0626037e 1579 .group = FIO_OPT_G_IO_BASIC,
4950421a
JA		 1580 },
1581 {
1582 .name = "iodepth_batch_complete",
e8b0e958 1583 .lname = "IO Depth batch complete",
4950421a
JA		 1584 .type = FIO_OPT_INT,
1585 .off1 = td_var_offset(iodepth_batch_complete),
d65db441 1586 .help = "Number of IO buffers to retrieve in one go",
4950421a 1587 .parent = "iodepth",
d71c154c 1588 .hide = 1,
4950421a 1589 .minval = 0,
20eb06bd 1590 .interval = 1,
4950421a 1591 .def = "1",
e8b0e958 1592 .category = FIO_OPT_C_IO,
0626037e 1593 .group = FIO_OPT_G_IO_BASIC,
214e1eca
JA		 1594 },
1595 {
1596 .name = "iodepth_low",
e8b0e958 1597 .lname = "IO Depth batch low",
214e1eca
JA		 1598 .type = FIO_OPT_INT,
1599 .off1 = td_var_offset(iodepth_low),
1600 .help = "Low water mark for queuing depth",
afdf9352 1601 .parent = "iodepth",
d71c154c 1602 .hide = 1,
20eb06bd 1603 .interval = 1,
e8b0e958 1604 .category = FIO_OPT_C_IO,
0626037e 1605 .group = FIO_OPT_G_IO_BASIC,
214e1eca
JA		 1606 },
1607 {
1608 .name = "size",
e8b0e958 1609 .lname = "Size",
214e1eca 1610 .type = FIO_OPT_STR_VAL,
7bb59102 1611 .cb = str_size_cb,
214e1eca 1612 .help = "Total size of device or files",
20eb06bd 1613 .interval = 1024 * 1024,
e8b0e958
JA		 1614 .category = FIO_OPT_C_IO,
1615 .group = FIO_OPT_G_INVALID,
214e1eca 1616 },
77731b29
JA		 1617 {
1618 .name = "io_limit",
1619 .lname = "IO Limit",
1620 .type = FIO_OPT_STR_VAL,
1621 .off1 = td_var_offset(io_limit),
1622 .interval = 1024 * 1024,
1623 .category = FIO_OPT_C_IO,
1624 .group = FIO_OPT_G_INVALID,
1625 },
aa31f1f1
SL		 1626 {
1627 .name = "fill_device",
e8b0e958 1628 .lname = "Fill device",
74586c1e 1629 .alias = "fill_fs",
aa31f1f1
SL		 1630 .type = FIO_OPT_BOOL,
1631 .off1 = td_var_offset(fill_device),
1632 .help = "Write until an ENOSPC error occurs",
1633 .def = "0",
e8b0e958
JA		 1634 .category = FIO_OPT_C_FILE,
1635 .group = FIO_OPT_G_INVALID,
aa31f1f1 1636 },
214e1eca
JA		 1637 {
1638 .name = "filesize",
e8b0e958 1639 .lname = "File size",
214e1eca
JA		 1640 .type = FIO_OPT_STR_VAL,
1641 .off1 = td_var_offset(file_size_low),
1642 .off2 = td_var_offset(file_size_high),
c3edbdba 1643 .minval = 1,
214e1eca 1644 .help = "Size of individual files",
20eb06bd 1645 .interval = 1024 * 1024,
e8b0e958
JA		 1646 .category = FIO_OPT_C_FILE,
1647 .group = FIO_OPT_G_INVALID,
214e1eca 1648 },
bedc9dc2
JA		 1649 {
1650 .name = "file_append",
1651 .lname = "File append",
1652 .type = FIO_OPT_BOOL,
1653 .off1 = td_var_offset(file_append),
1654 .help = "IO will start at the end of the file(s)",
1655 .def = "0",
1656 .category = FIO_OPT_C_FILE,
1657 .group = FIO_OPT_G_INVALID,
1658 },
67a1000f
JA		 1659 {
1660 .name = "offset",
e8b0e958 1661 .lname = "IO offset",
67a1000f
JA		 1662 .alias = "fileoffset",
1663 .type = FIO_OPT_STR_VAL,
1664 .off1 = td_var_offset(start_offset),
1665 .help = "Start IO from this offset",
1666 .def = "0",
20eb06bd 1667 .interval = 1024 * 1024,
e8b0e958
JA		 1668 .category = FIO_OPT_C_IO,
1669 .group = FIO_OPT_G_INVALID,
67a1000f 1670 },
2d7cd868
JA		 1671 {
1672 .name = "offset_increment",
e8b0e958 1673 .lname = "IO offset increment",
2d7cd868
JA		 1674 .type = FIO_OPT_STR_VAL,
1675 .off1 = td_var_offset(offset_increment),
1676 .help = "What is the increment from one offset to the next",
1677 .parent = "offset",
d71c154c 1678 .hide = 1,
2d7cd868 1679 .def = "0",
20eb06bd 1680 .interval = 1024 * 1024,
e8b0e958
JA		 1681 .category = FIO_OPT_C_IO,
1682 .group = FIO_OPT_G_INVALID,
2d7cd868 1683 },
ddf24e42
JA		 1684 {
1685 .name = "number_ios",
1686 .lname = "Number of IOs to perform",
1687 .type = FIO_OPT_STR_VAL,
1688 .off1 = td_var_offset(number_ios),
1689 .help = "Force job completion of this number of IOs",
1690 .def = "0",
1691 .category = FIO_OPT_C_IO,
1692 .group = FIO_OPT_G_INVALID,
1693 },
214e1eca
JA		 1694 {
1695 .name = "bs",
e8b0e958 1696 .lname = "Block size",
d3aad8f2 1697 .alias = "blocksize",
e01b22b8 1698 .type = FIO_OPT_INT,
214e1eca
JA		 1699 .off1 = td_var_offset(bs[DDIR_READ]),
1700 .off2 = td_var_offset(bs[DDIR_WRITE]),
6eaf09d6 1701 .off3 = td_var_offset(bs[DDIR_TRIM]),
c3edbdba 1702 .minval = 1,
214e1eca
JA		 1703 .help = "Block size unit",
1704 .def = "4k",
67a1000f 1705 .parent = "rw",
d71c154c 1706 .hide = 1,
20eb06bd 1707 .interval = 512,
e8b0e958
JA		 1708 .category = FIO_OPT_C_IO,
1709 .group = FIO_OPT_G_INVALID,
214e1eca 1710 },
2b7a01d0
JA		 1711 {
1712 .name = "ba",
e8b0e958 1713 .lname = "Block size align",
2b7a01d0 1714 .alias = "blockalign",
e01b22b8 1715 .type = FIO_OPT_INT,
2b7a01d0
JA		 1716 .off1 = td_var_offset(ba[DDIR_READ]),
1717 .off2 = td_var_offset(ba[DDIR_WRITE]),
6eaf09d6 1718 .off3 = td_var_offset(ba[DDIR_TRIM]),
2b7a01d0
JA		 1719 .minval = 1,
1720 .help = "IO block offset alignment",
1721 .parent = "rw",
d71c154c 1722 .hide = 1,
20eb06bd 1723 .interval = 512,
e8b0e958
JA		 1724 .category = FIO_OPT_C_IO,
1725 .group = FIO_OPT_G_INVALID,
2b7a01d0 1726 },
214e1eca
JA		 1727 {
1728 .name = "bsrange",
e8b0e958 1729 .lname = "Block size range",
d3aad8f2 1730 .alias = "blocksize_range",
214e1eca
JA		 1731 .type = FIO_OPT_RANGE,
1732 .off1 = td_var_offset(min_bs[DDIR_READ]),
1733 .off2 = td_var_offset(max_bs[DDIR_READ]),
1734 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
1735 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
6eaf09d6
SL		 1736 .off5 = td_var_offset(min_bs[DDIR_TRIM]),
1737 .off6 = td_var_offset(max_bs[DDIR_TRIM]),
c3edbdba 1738 .minval = 1,
214e1eca 1739 .help = "Set block size range (in more detail than bs)",
67a1000f 1740 .parent = "rw",
d71c154c 1741 .hide = 1,
20eb06bd 1742 .interval = 4096,
e8b0e958
JA		 1743 .category = FIO_OPT_C_IO,
1744 .group = FIO_OPT_G_INVALID,
214e1eca 1745 },
564ca972
JA		 1746 {
1747 .name = "bssplit",
e8b0e958 1748 .lname = "Block size split",
564ca972
JA		 1749 .type = FIO_OPT_STR,
1750 .cb = str_bssplit_cb,
1751 .help = "Set a specific mix of block sizes",
1752 .parent = "rw",
d71c154c 1753 .hide = 1,
e8b0e958
JA		 1754 .category = FIO_OPT_C_IO,
1755 .group = FIO_OPT_G_INVALID,
564ca972 1756 },
214e1eca
JA		 1757 {
1758 .name = "bs_unaligned",
e8b0e958 1759 .lname = "Block size unaligned",
d3aad8f2 1760 .alias = "blocksize_unaligned",
214e1eca
JA		 1761 .type = FIO_OPT_STR_SET,
1762 .off1 = td_var_offset(bs_unaligned),
1763 .help = "Don't sector align IO buffer sizes",
67a1000f 1764 .parent = "rw",
d71c154c 1765 .hide = 1,
e8b0e958
JA		 1766 .category = FIO_OPT_C_IO,
1767 .group = FIO_OPT_G_INVALID,
214e1eca 1768 },
6aca9b3d
JA		 1769 {
1770 .name = "bs_is_seq_rand",
1771 .lname = "Block size division is seq/random (not read/write)",
1772 .type = FIO_OPT_BOOL,
1773 .off1 = td_var_offset(bs_is_seq_rand),
1774 .help = "Consider any blocksize setting to be sequential,ramdom",
1775 .def = "0",
1776 .parent = "blocksize",
1777 .category = FIO_OPT_C_IO,
1778 .group = FIO_OPT_G_INVALID,
1779 },
214e1eca
JA		 1780 {
1781 .name = "randrepeat",
e8b0e958 1782 .lname = "Random repeatable",
214e1eca
JA		 1783 .type = FIO_OPT_BOOL,
1784 .off1 = td_var_offset(rand_repeatable),
1785 .help = "Use repeatable random IO pattern",
1786 .def = "1",
67a1000f 1787 .parent = "rw",
d71c154c 1788 .hide = 1,
e8b0e958 1789 .category = FIO_OPT_C_IO,
3ceb458f 1790 .group = FIO_OPT_G_RANDOM,
214e1eca 1791 },
04778baf
JA		 1792 {
1793 .name = "randseed",
1794 .lname = "The random generator seed",
363cffa7 1795 .type = FIO_OPT_STR_VAL,
04778baf
JA		 1796 .off1 = td_var_offset(rand_seed),
1797 .help = "Set the random generator seed value",
1798 .parent = "rw",
1799 .category = FIO_OPT_C_IO,
1800 .group = FIO_OPT_G_RANDOM,
1801 },
2615cc4b
JA		 1802 {
1803 .name = "use_os_rand",
e8b0e958 1804 .lname = "Use OS random",
2615cc4b
JA		 1805 .type = FIO_OPT_BOOL,
1806 .off1 = td_var_offset(use_os_rand),
1807 .help = "Set to use OS random generator",
1808 .def = "0",
1809 .parent = "rw",
d71c154c 1810 .hide = 1,
e8b0e958 1811 .category = FIO_OPT_C_IO,
3ceb458f 1812 .group = FIO_OPT_G_RANDOM,
2615cc4b 1813 },
214e1eca
JA		 1814 {
1815 .name = "norandommap",
e8b0e958 1816 .lname = "No randommap",
214e1eca
JA		 1817 .type = FIO_OPT_STR_SET,
1818 .off1 = td_var_offset(norandommap),
1819 .help = "Accept potential duplicate random blocks",
67a1000f 1820 .parent = "rw",
d71c154c 1821 .hide = 1,
b2452a43 1822 .hide_on_set = 1,
e8b0e958 1823 .category = FIO_OPT_C_IO,
3ceb458f 1824 .group = FIO_OPT_G_RANDOM,
214e1eca 1825 },
2b386d25
JA		 1826 {
1827 .name = "softrandommap",
e8b0e958 1828 .lname = "Soft randommap",
2b386d25
JA		 1829 .type = FIO_OPT_BOOL,
1830 .off1 = td_var_offset(softrandommap),
f66ab3c8 1831 .help = "Set norandommap if randommap allocation fails",
2b386d25 1832 .parent = "norandommap",
d71c154c 1833 .hide = 1,
2b386d25 1834 .def = "0",
e8b0e958 1835 .category = FIO_OPT_C_IO,
3ceb458f 1836 .group = FIO_OPT_G_RANDOM,
2b386d25 1837 },
8055e41d
JA		 1838 {
1839 .name = "random_generator",
1840 .type = FIO_OPT_STR,
1841 .off1 = td_var_offset(random_generator),
1842 .help = "Type of random number generator to use",
1843 .def = "tausworthe",
1844 .posval = {
1845 { .ival = "tausworthe",
1846 .oval = FIO_RAND_GEN_TAUSWORTHE,
1847 .help = "Strong Tausworthe generator",
1848 },
1849 { .ival = "lfsr",
1850 .oval = FIO_RAND_GEN_LFSR,
1851 .help = "Variable length LFSR",
1852 },
1853 },
48107598
JA		 1854 .category = FIO_OPT_C_IO,
1855 .group = FIO_OPT_G_RANDOM,
8055e41d 1856 },
e25839d4
JA		 1857 {
1858 .name = "random_distribution",
1859 .type = FIO_OPT_STR,
1860 .off1 = td_var_offset(random_distribution),
1861 .cb = str_random_distribution_cb,
1862 .help = "Random offset distribution generator",
1863 .def = "random",
1864 .posval = {
1865 { .ival = "random",
1866 .oval = FIO_RAND_DIST_RANDOM,
1867 .help = "Completely random",
1868 },
1869 { .ival = "zipf",
1870 .oval = FIO_RAND_DIST_ZIPF,
1871 .help = "Zipf distribution",
1872 },
925fee33
JA		 1873 { .ival = "pareto",
1874 .oval = FIO_RAND_DIST_PARETO,
1875 .help = "Pareto distribution",
1876 },
e25839d4 1877 },
48107598
JA		 1878 .category = FIO_OPT_C_IO,
1879 .group = FIO_OPT_G_RANDOM,
e25839d4 1880 },
211c9b89
JA		 1881 {
1882 .name = "percentage_random",
1883 .lname = "Percentage Random",
1884 .type = FIO_OPT_INT,
d9472271
JA		 1885 .off1 = td_var_offset(perc_rand[DDIR_READ]),
1886 .off2 = td_var_offset(perc_rand[DDIR_WRITE]),
1887 .off3 = td_var_offset(perc_rand[DDIR_TRIM]),
211c9b89
JA		 1888 .maxval = 100,
1889 .help = "Percentage of seq/random mix that should be random",
d9472271 1890 .def = "100,100,100",
211c9b89
JA		 1891 .interval = 5,
1892 .inverse = "percentage_sequential",
1893 .category = FIO_OPT_C_IO,
1894 .group = FIO_OPT_G_RANDOM,
1895 },
1896 {
1897 .name = "percentage_sequential",
1898 .lname = "Percentage Sequential",
d9472271 1899 .type = FIO_OPT_DEPRECATED,
211c9b89
JA		 1900 .category = FIO_OPT_C_IO,
1901 .group = FIO_OPT_G_RANDOM,
1902 },
56e2a5fc
CE		 1903 {
1904 .name = "allrandrepeat",
1905 .type = FIO_OPT_BOOL,
1906 .off1 = td_var_offset(allrand_repeatable),
1907 .help = "Use repeatable random numbers for everything",
1908 .def = "0",
a869d9c6
JA		 1909 .category = FIO_OPT_C_IO,
1910 .group = FIO_OPT_G_RANDOM,
56e2a5fc 1911 },
214e1eca
JA		 1912 {
1913 .name = "nrfiles",
e8b0e958 1914 .lname = "Number of files",
d7c8be03 1915 .alias = "nr_files",
214e1eca
JA		 1916 .type = FIO_OPT_INT,
1917 .off1 = td_var_offset(nr_files),
1918 .help = "Split job workload between this number of files",
1919 .def = "1",
20eb06bd 1920 .interval = 1,
e8b0e958
JA		 1921 .category = FIO_OPT_C_FILE,
1922 .group = FIO_OPT_G_INVALID,
214e1eca
JA		 1923 },
1924 {
1925 .name = "openfiles",
e8b0e958 1926 .lname = "Number of open files",
214e1eca
JA		 1927 .type = FIO_OPT_INT,
1928 .off1 = td_var_offset(open_files),
1929 .help = "Number of files to keep open at the same time",
e8b0e958
JA		 1930 .category = FIO_OPT_C_FILE,
1931 .group = FIO_OPT_G_INVALID,
214e1eca
JA		 1932 },
1933 {
1934 .name = "file_service_type",
e8b0e958 1935 .lname = "File service type",
214e1eca
JA		 1936 .type = FIO_OPT_STR,
1937 .cb = str_fst_cb,
1938 .off1 = td_var_offset(file_service_type),
1939 .help = "How to select which file to service next",
1940 .def = "roundrobin",
e8b0e958
JA		 1941 .category = FIO_OPT_C_FILE,
1942 .group = FIO_OPT_G_INVALID,
214e1eca
JA		 1943 .posval = {
1944 { .ival = "random",
1945 .oval = FIO_FSERVICE_RANDOM,
1946 .help = "Choose a file at random",
1947 },
1948 { .ival = "roundrobin",
1949 .oval = FIO_FSERVICE_RR,
1950 .help = "Round robin select files",
1951 },
a086c257
JA		 1952 { .ival = "sequential",
1953 .oval = FIO_FSERVICE_SEQ,
1954 .help = "Finish one file before moving to the next",
1955 },
214e1eca 1956 },
67a1000f 1957 .parent = "nrfiles",
d71c154c 1958 .hide = 1,
67a1000f 1959 },
97ac992c 1960#ifdef CONFIG_POSIX_FALLOCATE
7bc8c2cf
JA		 1961 {
1962 .name = "fallocate",
e8b0e958 1963 .lname = "Fallocate",
a596f047
EG		 1964 .type = FIO_OPT_STR,
1965 .off1 = td_var_offset(fallocate_mode),
1966 .help = "Whether pre-allocation is performed when laying out files",
1967 .def = "posix",
e8b0e958
JA		 1968 .category = FIO_OPT_C_FILE,
1969 .group = FIO_OPT_G_INVALID,
a596f047
EG		 1970 .posval = {
1971 { .ival = "none",
1972 .oval = FIO_FALLOCATE_NONE,
1973 .help = "Do not pre-allocate space",
1974 },
1975 { .ival = "posix",
1976 .oval = FIO_FALLOCATE_POSIX,
1977 .help = "Use posix_fallocate()",
1978 },
97ac992c 1979#ifdef CONFIG_LINUX_FALLOCATE
a596f047
EG		 1980 { .ival = "keep",
1981 .oval = FIO_FALLOCATE_KEEP_SIZE,
1982 .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
1983 },
7bc8c2cf 1984#endif
a596f047
EG		 1985 /* Compatibility with former boolean values */
1986 { .ival = "0",
1987 .oval = FIO_FALLOCATE_NONE,
1988 .help = "Alias for 'none'",
1989 },
1990 { .ival = "1",
1991 .oval = FIO_FALLOCATE_POSIX,
1992 .help = "Alias for 'posix'",
1993 },
1994 },
1995 },
97ac992c 1996#endif /* CONFIG_POSIX_FALLOCATE */
67a1000f
JA		 1997 {
1998 .name = "fadvise_hint",
e8b0e958 1999 .lname = "Fadvise hint",
67a1000f
JA		 2000 .type = FIO_OPT_BOOL,
2001 .off1 = td_var_offset(fadvise_hint),
2002 .help = "Use fadvise() to advise the kernel on IO pattern",
2003 .def = "1",
e8b0e958
JA		 2004 .category = FIO_OPT_C_FILE,
2005 .group = FIO_OPT_G_INVALID,
214e1eca
JA		 2006 },
2007 {
2008 .name = "fsync",
e8b0e958 2009 .lname = "Fsync",
214e1eca
JA		 2010 .type = FIO_OPT_INT,
2011 .off1 = td_var_offset(fsync_blocks),
2012 .help = "Issue fsync for writes every given number of blocks",
2013 .def = "0",
20eb06bd 2014 .interval = 1,
e8b0e958
JA		 2015 .category = FIO_OPT_C_FILE,
2016 .group = FIO_OPT_G_INVALID,
214e1eca 2017 },
5f9099ea
JA		 2018 {
2019 .name = "fdatasync",
e8b0e958 2020 .lname = "Fdatasync",
5f9099ea
JA		 2021 .type = FIO_OPT_INT,
2022 .off1 = td_var_offset(fdatasync_blocks),
2023 .help = "Issue fdatasync for writes every given number of blocks",
2024 .def = "0",
20eb06bd 2025 .interval = 1,
e8b0e958
JA		 2026 .category = FIO_OPT_C_FILE,
2027 .group = FIO_OPT_G_INVALID,
5f9099ea 2028 },
1ef2b6be
JA		 2029 {
2030 .name = "write_barrier",
e8b0e958 2031 .lname = "Write barrier",
1ef2b6be
JA		 2032 .type = FIO_OPT_INT,
2033 .off1 = td_var_offset(barrier_blocks),
2034 .help = "Make every Nth write a barrier write",
2035 .def = "0",
20eb06bd 2036 .interval = 1,
e8b0e958
JA		 2037 .category = FIO_OPT_C_IO,
2038 .group = FIO_OPT_G_INVALID,
1ef2b6be 2039 },
67bf9823 2040#ifdef CONFIG_SYNC_FILE_RANGE
44f29692
JA		 2041 {
2042 .name = "sync_file_range",
e8b0e958 2043 .lname = "Sync file range",
44f29692
JA		 2044 .posval = {
2045 { .ival = "wait_before",
2046 .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
2047 .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
ebadc0ce 2048 .orval = 1,
44f29692
JA		 2049 },
2050 { .ival = "write",
2051 .oval = SYNC_FILE_RANGE_WRITE,
2052 .help = "SYNC_FILE_RANGE_WRITE",
ebadc0ce 2053 .orval = 1,
44f29692
JA		 2054 },
2055 {
2056 .ival = "wait_after",
2057 .oval = SYNC_FILE_RANGE_WAIT_AFTER,
2058 .help = "SYNC_FILE_RANGE_WAIT_AFTER",
ebadc0ce 2059 .orval = 1,
44f29692
JA		 2060 },
2061 },
3843deb3 2062 .type = FIO_OPT_STR_MULTI,
44f29692
JA		 2063 .cb = str_sfr_cb,
2064 .off1 = td_var_offset(sync_file_range),
2065 .help = "Use sync_file_range()",
e8b0e958
JA		 2066 .category = FIO_OPT_C_FILE,
2067 .group = FIO_OPT_G_INVALID,
44f29692
JA		 2068 },
2069#endif
214e1eca
JA		 2070 {
2071 .name = "direct",
e8b0e958 2072 .lname = "Direct I/O",
214e1eca
JA		 2073 .type = FIO_OPT_BOOL,
2074 .off1 = td_var_offset(odirect),
2075 .help = "Use O_DIRECT IO (negates buffered)",
2076 .def = "0",
a01a1bc5 2077 .inverse = "buffered",
e8b0e958 2078 .category = FIO_OPT_C_IO,
3ceb458f 2079 .group = FIO_OPT_G_IO_TYPE,
214e1eca 2080 },
d01612f3
CM		 2081 {
2082 .name = "atomic",
2083 .lname = "Atomic I/O",
2084 .type = FIO_OPT_BOOL,
2085 .off1 = td_var_offset(oatomic),
2086 .help = "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
2087 .def = "0",
2088 .category = FIO_OPT_C_IO,
2089 .group = FIO_OPT_G_IO_TYPE,
2090 },
214e1eca
JA		 2091 {
2092 .name = "buffered",
e8b0e958 2093 .lname = "Buffered I/O",
214e1eca
JA		 2094 .type = FIO_OPT_BOOL,
2095 .off1 = td_var_offset(odirect),
2096 .neg = 1,
2097 .help = "Use buffered IO (negates direct)",
2098 .def = "1",
a01a1bc5 2099 .inverse = "direct",
e8b0e958 2100 .category = FIO_OPT_C_IO,
3ceb458f 2101 .group = FIO_OPT_G_IO_TYPE,
214e1eca
JA		 2102 },
2103 {
2104 .name = "overwrite",
e8b0e958 2105 .lname = "Overwrite",
214e1eca
JA		 2106 .type = FIO_OPT_BOOL,
2107 .off1 = td_var_offset(overwrite),
2108 .help = "When writing, set whether to overwrite current data",
2109 .def = "0",
e8b0e958
JA		 2110 .category = FIO_OPT_C_FILE,
2111 .group = FIO_OPT_G_INVALID,
214e1eca
JA		 2112 },
2113 {
2114 .name = "loops",
e8b0e958 2115 .lname = "Loops",
214e1eca
JA		 2116 .type = FIO_OPT_INT,
2117 .off1 = td_var_offset(loops),
2118 .help = "Number of times to run the job",
2119 .def = "1",
20eb06bd 2120 .interval = 1,
e8b0e958 2121 .category = FIO_OPT_C_GENERAL,
a1f6afec 2122 .group = FIO_OPT_G_RUNTIME,
214e1eca
JA		 2123 },
2124 {
2125 .name = "numjobs",
e8b0e958 2126 .lname = "Number of jobs",
214e1eca
JA		 2127 .type = FIO_OPT_INT,
2128 .off1 = td_var_offset(numjobs),
2129 .help = "Duplicate this job this many times",
2130 .def = "1",
20eb06bd 2131 .interval = 1,
e8b0e958 2132 .category = FIO_OPT_C_GENERAL,
a1f6afec 2133 .group = FIO_OPT_G_RUNTIME,
214e1eca
JA		 2134 },
2135 {
2136 .name = "startdelay",
e8b0e958 2137 .lname = "Start delay",
a5737c93 2138 .type = FIO_OPT_STR_VAL_TIME,
214e1eca 2139 .off1 = td_var_offset(start_delay),
23ed19b0 2140 .off2 = td_var_offset(start_delay_high),
214e1eca
JA		 2141 .help = "Only start job when this period has passed",
2142 .def = "0",
0de5b26f 2143 .is_seconds = 1,
e8b0e958 2144 .category = FIO_OPT_C_GENERAL,
a1f6afec 2145 .group = FIO_OPT_G_RUNTIME,
214e1eca
JA		 2146 },
2147 {
2148 .name = "runtime",
e8b0e958 2149 .lname = "Runtime",
214e1eca
JA		 2150 .alias = "timeout",
2151 .type = FIO_OPT_STR_VAL_TIME,
2152 .off1 = td_var_offset(timeout),
2153 .help = "Stop workload when this amount of time has passed",
2154 .def = "0",
0de5b26f 2155 .is_seconds = 1,
e8b0e958 2156 .category = FIO_OPT_C_GENERAL,
a1f6afec 2157 .group = FIO_OPT_G_RUNTIME,
214e1eca 2158 },
cf4464ca
JA		 2159 {
2160 .name = "time_based",
e8b0e958 2161 .lname = "Time based",
cf4464ca
JA		 2162 .type = FIO_OPT_STR_SET,
2163 .off1 = td_var_offset(time_based),
2164 .help = "Keep running until runtime/timeout is met",
e8b0e958 2165 .category = FIO_OPT_C_GENERAL,
a1f6afec 2166 .group = FIO_OPT_G_RUNTIME,
cf4464ca 2167 },
62167762
JC		 2168 {
2169 .name = "verify_only",
2170 .lname = "Verify only",
2171 .type = FIO_OPT_STR_SET,
2172 .off1 = td_var_offset(verify_only),
2173 .help = "Verifies previously written data is still valid",
2174 .category = FIO_OPT_C_GENERAL,
2175 .group = FIO_OPT_G_RUNTIME,
2176 },
721938ae
JA		 2177 {
2178 .name = "ramp_time",
e8b0e958 2179 .lname = "Ramp time",
721938ae
JA		 2180 .type = FIO_OPT_STR_VAL_TIME,
2181 .off1 = td_var_offset(ramp_time),
2182 .help = "Ramp up time before measuring performance",
0de5b26f 2183 .is_seconds = 1,
e8b0e958 2184 .category = FIO_OPT_C_GENERAL,
a1f6afec 2185 .group = FIO_OPT_G_RUNTIME,
721938ae 2186 },
c223da83
JA		 2187 {
2188 .name = "clocksource",
e8b0e958 2189 .lname = "Clock source",
c223da83
JA		 2190 .type = FIO_OPT_STR,
2191 .cb = fio_clock_source_cb,
2192 .off1 = td_var_offset(clocksource),
2193 .help = "What type of timing source to use",
e8b0e958 2194 .category = FIO_OPT_C_GENERAL,
10860056 2195 .group = FIO_OPT_G_CLOCK,
c223da83 2196 .posval = {
67bf9823 2197#ifdef CONFIG_GETTIMEOFDAY
c223da83
JA		 2198 { .ival = "gettimeofday",
2199 .oval = CS_GTOD,
2200 .help = "Use gettimeofday(2) for timing",
2201 },
67bf9823
JA		 2202#endif
2203#ifdef CONFIG_CLOCK_GETTIME
c223da83
JA		 2204 { .ival = "clock_gettime",
2205 .oval = CS_CGETTIME,
2206 .help = "Use clock_gettime(2) for timing",
2207 },
67bf9823 2208#endif
c223da83
JA		 2209#ifdef ARCH_HAVE_CPU_CLOCK
2210 { .ival = "cpu",
2211 .oval = CS_CPUCLOCK,
2212 .help = "Use CPU private clock",
2213 },
2214#endif
2215 },
2216 },
214e1eca
JA		 2217 {
2218 .name = "mem",
d3aad8f2 2219 .alias = "iomem",
e8b0e958 2220 .lname = "I/O Memory",
214e1eca
JA		 2221 .type = FIO_OPT_STR,
2222 .cb = str_mem_cb,
2223 .off1 = td_var_offset(mem_type),
2224 .help = "Backing type for IO buffers",
2225 .def = "malloc",
e8b0e958
JA		 2226 .category = FIO_OPT_C_IO,
2227 .group = FIO_OPT_G_INVALID,
214e1eca
JA		 2228 .posval = {
2229 { .ival = "malloc",
2230 .oval = MEM_MALLOC,
2231 .help = "Use malloc(3) for IO buffers",
2232 },
c8931876 2233#ifndef CONFIG_NO_SHM
37c8cdfe
JA		 2234 { .ival = "shm",
2235 .oval = MEM_SHM,
2236 .help = "Use shared memory segments for IO buffers",
2237 },
214e1eca
JA		 2238#ifdef FIO_HAVE_HUGETLB
2239 { .ival = "shmhuge",
2240 .oval = MEM_SHMHUGE,
2241 .help = "Like shm, but use huge pages",
2242 },
c8931876 2243#endif
b370e46a 2244#endif
37c8cdfe
JA		 2245 { .ival = "mmap",
2246 .oval = MEM_MMAP,
2247 .help = "Use mmap(2) (file or anon) for IO buffers",
2248 },
214e1eca
JA		 2249#ifdef FIO_HAVE_HUGETLB
2250 { .ival = "mmaphuge",
2251 .oval = MEM_MMAPHUGE,
2252 .help = "Like mmap, but use huge pages",
2253 },
2254#endif
2255 },
2256 },
d529ee19
JA		 2257 {
2258 .name = "iomem_align",
2259 .alias = "mem_align",
e8b0e958 2260 .lname = "I/O memory alignment",
d529ee19
JA		 2261 .type = FIO_OPT_INT,
2262 .off1 = td_var_offset(mem_align),
2263 .minval = 0,
2264 .help = "IO memory buffer offset alignment",
2265 .def = "0",
2266 .parent = "iomem",
d71c154c 2267 .hide = 1,
e8b0e958
JA		 2268 .category = FIO_OPT_C_IO,
2269 .group = FIO_OPT_G_INVALID,
d529ee19 2270 },
214e1eca
JA		 2271 {
2272 .name = "verify",
e8b0e958 2273 .lname = "Verify",
214e1eca
JA		 2274 .type = FIO_OPT_STR,
2275 .off1 = td_var_offset(verify),
2276 .help = "Verify data written",
2277 .def = "0",
e8b0e958 2278 .category = FIO_OPT_C_IO,
3ceb458f 2279 .group = FIO_OPT_G_VERIFY,
214e1eca
JA		 2280 .posval = {
2281 { .ival = "0",
2282 .oval = VERIFY_NONE,
2283 .help = "Don't do IO verification",
2284 },
fcca4b58
JA		 2285 { .ival = "md5",
2286 .oval = VERIFY_MD5,
2287 .help = "Use md5 checksums for verification",
2288 },
d77a7af3
JA		 2289 { .ival = "crc64",
2290 .oval = VERIFY_CRC64,
2291 .help = "Use crc64 checksums for verification",
2292 },
214e1eca
JA		 2293 { .ival = "crc32",
2294 .oval = VERIFY_CRC32,
2295 .help = "Use crc32 checksums for verification",
2296 },
af497e6a 2297 { .ival = "crc32c-intel",
e3aaafc4
JA		 2298 .oval = VERIFY_CRC32C,
2299 .help = "Use crc32c checksums for verification (hw assisted, if available)",
af497e6a 2300 },
bac39e0e
JA		 2301 { .ival = "crc32c",
2302 .oval = VERIFY_CRC32C,
e3aaafc4 2303 .help = "Use crc32c checksums for verification (hw assisted, if available)",
bac39e0e 2304 },
969f7ed3
JA		 2305 { .ival = "crc16",
2306 .oval = VERIFY_CRC16,
2307 .help = "Use crc16 checksums for verification",
2308 },
1e154bdb
JA		 2309 { .ival = "crc7",
2310 .oval = VERIFY_CRC7,
2311 .help = "Use crc7 checksums for verification",
2312 },
7c353ceb
JA		 2313 { .ival = "sha1",
2314 .oval = VERIFY_SHA1,
2315 .help = "Use sha1 checksums for verification",
2316 },
cd14cc10
JA		 2317 { .ival = "sha256",
2318 .oval = VERIFY_SHA256,
2319 .help = "Use sha256 checksums for verification",
2320 },
2321 { .ival = "sha512",
2322 .oval = VERIFY_SHA512,
2323 .help = "Use sha512 checksums for verification",
2324 },
844ea602
JA		 2325 { .ival = "xxhash",
2326 .oval = VERIFY_XXHASH,
2327 .help = "Use xxhash checksums for verification",
2328 },
7437ee87
SL		 2329 { .ival = "meta",
2330 .oval = VERIFY_META,
2331 .help = "Use io information",
2332 },
36690c9b
JA		 2333 {
2334 .ival = "null",
2335 .oval = VERIFY_NULL,
2336 .help = "Pretend to verify",
2337 },
214e1eca
JA		 2338 },
2339 },
005c565a
JA		 2340 {
2341 .name = "do_verify",
e8b0e958 2342 .lname = "Perform verify step",
68e1f29a 2343 .type = FIO_OPT_BOOL,
005c565a
JA		 2344 .off1 = td_var_offset(do_verify),
2345 .help = "Run verification stage after write",
2346 .def = "1",
2347 .parent = "verify",
d71c154c 2348 .hide = 1,
e8b0e958
JA		 2349 .category = FIO_OPT_C_IO,
2350 .group = FIO_OPT_G_VERIFY,
005c565a 2351 },
160b966d
JA		 2352 {
2353 .name = "verifysort",
e8b0e958 2354 .lname = "Verify sort",
160b966d
JA		 2355 .type = FIO_OPT_BOOL,
2356 .off1 = td_var_offset(verifysort),
2357 .help = "Sort written verify blocks for read back",
2358 .def = "1",
c83f2df1 2359 .parent = "verify",
d71c154c 2360 .hide = 1,
e8b0e958
JA		 2361 .category = FIO_OPT_C_IO,
2362 .group = FIO_OPT_G_VERIFY,
160b966d 2363 },
1ae83d45
JA		 2364 {
2365 .name = "verifysort_nr",
2366 .type = FIO_OPT_INT,
2367 .off1 = td_var_offset(verifysort_nr),
2368 .help = "Pre-load and sort verify blocks for a read workload",
2369 .minval = 0,
2370 .maxval = 131072,
2371 .def = "1024",
2372 .parent = "verify",
836fcc0f
JA		 2373 .category = FIO_OPT_C_IO,
2374 .group = FIO_OPT_G_VERIFY,
1ae83d45 2375 },
3f9f4e26 2376 {
a59e170d 2377 .name = "verify_interval",
e8b0e958 2378 .lname = "Verify interval",
e01b22b8 2379 .type = FIO_OPT_INT,
a59e170d 2380 .off1 = td_var_offset(verify_interval),
819a9680 2381 .minval = 2 * sizeof(struct verify_header),
a59e170d 2382 .help = "Store verify buffer header every N bytes",
afdf9352 2383 .parent = "verify",
d71c154c 2384 .hide = 1,
20eb06bd 2385 .interval = 2 * sizeof(struct verify_header),
e8b0e958
JA		 2386 .category = FIO_OPT_C_IO,
2387 .group = FIO_OPT_G_VERIFY,
3f9f4e26 2388 },
546a9142 2389 {
a59e170d 2390 .name = "verify_offset",
e8b0e958 2391 .lname = "Verify offset",
e01b22b8 2392 .type = FIO_OPT_INT,
a59e170d 2393 .help = "Offset verify header location by N bytes",
203160d5
JA		 2394 .off1 = td_var_offset(verify_offset),
2395 .minval = sizeof(struct verify_header),
afdf9352 2396 .parent = "verify",
d71c154c 2397 .hide = 1,
e8b0e958
JA		 2398 .category = FIO_OPT_C_IO,
2399 .group = FIO_OPT_G_VERIFY,
546a9142 2400 },
e28218f3
SL		 2401 {
2402 .name = "verify_pattern",
e8b0e958 2403 .lname = "Verify pattern",
0e92f873 2404 .type = FIO_OPT_STR,
e28218f3
SL		 2405 .cb = str_verify_pattern_cb,
2406 .help = "Fill pattern for IO buffers",
2407 .parent = "verify",
d71c154c 2408 .hide = 1,
e8b0e958
JA		 2409 .category = FIO_OPT_C_IO,
2410 .group = FIO_OPT_G_VERIFY,
e28218f3 2411 },
a12a3b4d
JA		 2412 {
2413 .name = "verify_fatal",
e8b0e958 2414 .lname = "Verify fatal",
68e1f29a 2415 .type = FIO_OPT_BOOL,
a12a3b4d
JA		 2416 .off1 = td_var_offset(verify_fatal),
2417 .def = "0",
2418 .help = "Exit on a single verify failure, don't continue",
2419 .parent = "verify",
d71c154c 2420 .hide = 1,
e8b0e958
JA		 2421 .category = FIO_OPT_C_IO,
2422 .group = FIO_OPT_G_VERIFY,
a12a3b4d 2423 },
b463e936
JA		 2424 {
2425 .name = "verify_dump",
e8b0e958 2426 .lname = "Verify dump",
b463e936
JA		 2427 .type = FIO_OPT_BOOL,
2428 .off1 = td_var_offset(verify_dump),
ef71e317 2429 .def = "0",
b463e936
JA		 2430 .help = "Dump contents of good and bad blocks on failure",
2431 .parent = "verify",
d71c154c 2432 .hide = 1,
e8b0e958
JA		 2433 .category = FIO_OPT_C_IO,
2434 .group = FIO_OPT_G_VERIFY,
b463e936 2435 },
e8462bd8
JA		 2436 {
2437 .name = "verify_async",
e8b0e958 2438 .lname = "Verify asynchronously",
e8462bd8
JA		 2439 .type = FIO_OPT_INT,
2440 .off1 = td_var_offset(verify_async),
2441 .def = "0",
2442 .help = "Number of async verifier threads to use",
2443 .parent = "verify",
d71c154c 2444 .hide = 1,
e8b0e958
JA		 2445 .category = FIO_OPT_C_IO,
2446 .group = FIO_OPT_G_VERIFY,
e8462bd8 2447 },
9e144189
JA		 2448 {
2449 .name = "verify_backlog",
e8b0e958 2450 .lname = "Verify backlog",
9e144189
JA		 2451 .type = FIO_OPT_STR_VAL,
2452 .off1 = td_var_offset(verify_backlog),
2453 .help = "Verify after this number of blocks are written",
2454 .parent = "verify",
d71c154c 2455 .hide = 1,
e8b0e958
JA		 2456 .category = FIO_OPT_C_IO,
2457 .group = FIO_OPT_G_VERIFY,
9e144189
JA		 2458 },
2459 {
2460 .name = "verify_backlog_batch",
e8b0e958 2461 .lname = "Verify backlog batch",
9e144189
JA		 2462 .type = FIO_OPT_INT,
2463 .off1 = td_var_offset(verify_batch),
2464 .help = "Verify this number of IO blocks",
0d29de83 2465 .parent = "verify",
d71c154c 2466 .hide = 1,
e8b0e958
JA		 2467 .category = FIO_OPT_C_IO,
2468 .group = FIO_OPT_G_VERIFY,
9e144189 2469 },
e8462bd8
JA		 2470#ifdef FIO_HAVE_CPU_AFFINITY
2471 {
2472 .name = "verify_async_cpus",
e8b0e958 2473 .lname = "Async verify CPUs",
e8462bd8
JA		 2474 .type = FIO_OPT_STR,
2475 .cb = str_verify_cpus_allowed_cb,
2476 .help = "Set CPUs allowed for async verify threads",
2477 .parent = "verify_async",
d71c154c 2478 .hide = 1,
e8b0e958
JA		 2479 .category = FIO_OPT_C_IO,
2480 .group = FIO_OPT_G_VERIFY,
e8462bd8 2481 },
0d29de83 2482#endif
51aa2da8
JA		 2483 {
2484 .name = "experimental_verify",
2485 .off1 = td_var_offset(experimental_verify),
2486 .type = FIO_OPT_BOOL,
b31eaac9 2487 .help = "Enable experimental verification",
836fcc0f
JA		 2488 .category = FIO_OPT_C_IO,
2489 .group = FIO_OPT_G_VERIFY,
51aa2da8 2490 },
0d29de83
JA		 2491#ifdef FIO_HAVE_TRIM
2492 {
2493 .name = "trim_percentage",
e8b0e958 2494 .lname = "Trim percentage",
0d29de83 2495 .type = FIO_OPT_INT,
203160d5 2496 .off1 = td_var_offset(trim_percentage),
20eb06bd 2497 .minval = 0,
0d29de83
JA		 2498 .maxval = 100,
2499 .help = "Number of verify blocks to discard/trim",
2500 .parent = "verify",
2501 .def = "0",
20eb06bd 2502 .interval = 1,
d71c154c 2503 .hide = 1,
e8b0e958
JA		 2504 .category = FIO_OPT_C_IO,
2505 .group = FIO_OPT_G_TRIM,
0d29de83
JA		 2506 },
2507 {
2508 .name = "trim_verify_zero",
e8b0e958 2509 .lname = "Verify trim zero",
20eb06bd 2510 .type = FIO_OPT_BOOL,
0d29de83
JA		 2511 .help = "Verify that trim/discarded blocks are returned as zeroes",
2512 .off1 = td_var_offset(trim_zero),
2513 .parent = "trim_percentage",
d71c154c 2514 .hide = 1,
0d29de83 2515 .def = "1",
e8b0e958
JA		 2516 .category = FIO_OPT_C_IO,
2517 .group = FIO_OPT_G_TRIM,
0d29de83
JA		 2518 },
2519 {
2520 .name = "trim_backlog",
e8b0e958 2521 .lname = "Trim backlog",
0d29de83
JA		 2522 .type = FIO_OPT_STR_VAL,
2523 .off1 = td_var_offset(trim_backlog),
2524 .help = "Trim after this number of blocks are written",
2525 .parent = "trim_percentage",
d71c154c 2526 .hide = 1,
20eb06bd 2527 .interval = 1,
e8b0e958
JA		 2528 .category = FIO_OPT_C_IO,
2529 .group = FIO_OPT_G_TRIM,
0d29de83
JA		 2530 },
2531 {
2532 .name = "trim_backlog_batch",
e8b0e958 2533 .lname = "Trim backlog batch",
0d29de83
JA		 2534 .type = FIO_OPT_INT,
2535 .off1 = td_var_offset(trim_batch),
2536 .help = "Trim this number of IO blocks",
2537 .parent = "trim_percentage",
d71c154c 2538 .hide = 1,
20eb06bd 2539 .interval = 1,
e8b0e958
JA		 2540 .category = FIO_OPT_C_IO,
2541 .group = FIO_OPT_G_TRIM,
0d29de83 2542 },
e8462bd8 2543#endif
214e1eca
JA		 2544 {
2545 .name = "write_iolog",
e8b0e958 2546 .lname = "Write I/O log",
214e1eca
JA		 2547 .type = FIO_OPT_STR_STORE,
2548 .off1 = td_var_offset(write_iolog_file),
2549 .help = "Store IO pattern to file",
e8b0e958
JA		 2550 .category = FIO_OPT_C_IO,
2551 .group = FIO_OPT_G_IOLOG,
214e1eca
JA		 2552 },
2553 {
2554 .name = "read_iolog",
e8b0e958 2555 .lname = "Read I/O log",
214e1eca
JA		 2556 .type = FIO_OPT_STR_STORE,
2557 .off1 = td_var_offset(read_iolog_file),
2558 .help = "Playback IO pattern from file",
e8b0e958
JA		 2559 .category = FIO_OPT_C_IO,
2560 .group = FIO_OPT_G_IOLOG,
214e1eca 2561 },
64bbb865
DN		 2562 {
2563 .name = "replay_no_stall",
e8b0e958 2564 .lname = "Don't stall on replay",
20eb06bd 2565 .type = FIO_OPT_BOOL,
64bbb865
DN		 2566 .off1 = td_var_offset(no_stall),
2567 .def = "0",
87e7a972 2568 .parent = "read_iolog",
d71c154c 2569 .hide = 1,
64bbb865 2570 .help = "Playback IO pattern file as fast as possible without stalls",
e8b0e958
JA		 2571 .category = FIO_OPT_C_IO,
2572 .group = FIO_OPT_G_IOLOG,
64bbb865 2573 },
d1c46c04
DN		 2574 {
2575 .name = "replay_redirect",
e8b0e958 2576 .lname = "Redirect device for replay",
d1c46c04
DN		 2577 .type = FIO_OPT_STR_STORE,
2578 .off1 = td_var_offset(replay_redirect),
2579 .parent = "read_iolog",
d71c154c 2580 .hide = 1,
d1c46c04 2581 .help = "Replay all I/O onto this device, regardless of trace device",
e8b0e958
JA		 2582 .category = FIO_OPT_C_IO,
2583 .group = FIO_OPT_G_IOLOG,
d1c46c04 2584 },
214e1eca
JA		 2585 {
2586 .name = "exec_prerun",
e8b0e958 2587 .lname = "Pre-execute runnable",
214e1eca
JA		 2588 .type = FIO_OPT_STR_STORE,
2589 .off1 = td_var_offset(exec_prerun),
2590 .help = "Execute this file prior to running job",
e8b0e958
JA		 2591 .category = FIO_OPT_C_GENERAL,
2592 .group = FIO_OPT_G_INVALID,
214e1eca
JA		 2593 },
2594 {
2595 .name = "exec_postrun",
e8b0e958 2596 .lname = "Post-execute runnable",
214e1eca
JA		 2597 .type = FIO_OPT_STR_STORE,
2598 .off1 = td_var_offset(exec_postrun),
2599 .help = "Execute this file after running job",
e8b0e958
JA		 2600 .category = FIO_OPT_C_GENERAL,
2601 .group = FIO_OPT_G_INVALID,
214e1eca
JA		 2602 },
2603#ifdef FIO_HAVE_IOSCHED_SWITCH
2604 {
2605 .name = "ioscheduler",
e8b0e958 2606 .lname = "I/O scheduler",
214e1eca
JA		 2607 .type = FIO_OPT_STR_STORE,
2608 .off1 = td_var_offset(ioscheduler),
2609 .help = "Use this IO scheduler on the backing device",
e8b0e958
JA		 2610 .category = FIO_OPT_C_FILE,
2611 .group = FIO_OPT_G_INVALID,
214e1eca
JA		 2612 },
2613#endif
2614 {
2615 .name = "zonesize",
e8b0e958 2616 .lname = "Zone size",
214e1eca
JA		 2617 .type = FIO_OPT_STR_VAL,
2618 .off1 = td_var_offset(zone_size),
ed335855
SN		 2619 .help = "Amount of data to read per zone",
2620 .def = "0",
20eb06bd 2621 .interval = 1024 * 1024,
e8b0e958
JA		 2622 .category = FIO_OPT_C_IO,
2623 .group = FIO_OPT_G_ZONE,
ed335855
SN		 2624 },
2625 {
2626 .name = "zonerange",
e8b0e958 2627 .lname = "Zone range",
ed335855
SN		 2628 .type = FIO_OPT_STR_VAL,
2629 .off1 = td_var_offset(zone_range),
214e1eca
JA		 2630 .help = "Give size of an IO zone",
2631 .def = "0",
20eb06bd 2632 .interval = 1024 * 1024,
e8b0e958
JA		 2633 .category = FIO_OPT_C_IO,
2634 .group = FIO_OPT_G_ZONE,
214e1eca
JA		 2635 },
2636 {
2637 .name = "zoneskip",
e8b0e958 2638 .lname = "Zone skip",
214e1eca
JA		 2639 .type = FIO_OPT_STR_VAL,
2640 .off1 = td_var_offset(zone_skip),
2641 .help = "Space between IO zones",
2642 .def = "0",
20eb06bd 2643 .interval = 1024 * 1024,
e8b0e958
JA		 2644 .category = FIO_OPT_C_IO,
2645 .group = FIO_OPT_G_ZONE,
214e1eca
JA		 2646 },
2647 {
2648 .name = "lockmem",
e8b0e958 2649 .lname = "Lock memory",
214e1eca 2650 .type = FIO_OPT_STR_VAL,
1b79a070 2651 .off1 = td_var_offset(lockmem),
81c6b6cd 2652 .help = "Lock down this amount of memory (per worker)",
214e1eca 2653 .def = "0",
20eb06bd 2654 .interval = 1024 * 1024,
e8b0e958
JA		 2655 .category = FIO_OPT_C_GENERAL,
2656 .group = FIO_OPT_G_INVALID,
214e1eca 2657 },
214e1eca
JA		 2658 {
2659 .name = "rwmixread",
e8b0e958 2660 .lname = "Read/write mix read",
214e1eca 2661 .type = FIO_OPT_INT,
cb499fc4 2662 .cb = str_rwmix_read_cb,
214e1eca
JA		 2663 .maxval = 100,
2664 .help = "Percentage of mixed workload that is reads",
2665 .def = "50",
20eb06bd 2666 .interval = 5,
90265353 2667 .inverse = "rwmixwrite",
e8b0e958
JA		 2668 .category = FIO_OPT_C_IO,
2669 .group = FIO_OPT_G_RWMIX,
214e1eca
JA		 2670 },
2671 {
2672 .name = "rwmixwrite",
e8b0e958 2673 .lname = "Read/write mix write",
214e1eca 2674 .type = FIO_OPT_INT,
cb499fc4 2675 .cb = str_rwmix_write_cb,
214e1eca
JA		 2676 .maxval = 100,
2677 .help = "Percentage of mixed workload that is writes",
2678 .def = "50",
20eb06bd 2679 .interval = 5,
90265353 2680 .inverse = "rwmixread",
e8b0e958
JA		 2681 .category = FIO_OPT_C_IO,
2682 .group = FIO_OPT_G_RWMIX,
214e1eca 2683 },
afdf9352
JA		 2684 {
2685 .name = "rwmixcycle",
e8b0e958 2686 .lname = "Read/write mix cycle",
15ca150e 2687 .type = FIO_OPT_DEPRECATED,
e8b0e958
JA		 2688 .category = FIO_OPT_C_IO,
2689 .group = FIO_OPT_G_RWMIX,
afdf9352 2690 },
214e1eca
JA		 2691 {
2692 .name = "nice",
e8b0e958 2693 .lname = "Nice",
214e1eca
JA		 2694 .type = FIO_OPT_INT,
2695 .off1 = td_var_offset(nice),
2696 .help = "Set job CPU nice value",
2697 .minval = -19,
2698 .maxval = 20,
2699 .def = "0",
20eb06bd 2700 .interval = 1,
e8b0e958 2701 .category = FIO_OPT_C_GENERAL,
10860056 2702 .group = FIO_OPT_G_CRED,
214e1eca
JA		 2703 },
2704#ifdef FIO_HAVE_IOPRIO
2705 {
2706 .name = "prio",
e8b0e958 2707 .lname = "I/O nice priority",
214e1eca 2708 .type = FIO_OPT_INT,
28727df7 2709 .off1 = td_var_offset(ioprio),
214e1eca
JA		 2710 .help = "Set job IO priority value",
2711 .minval = 0,
2712 .maxval = 7,
20eb06bd 2713 .interval = 1,
e8b0e958 2714 .category = FIO_OPT_C_GENERAL,
10860056 2715 .group = FIO_OPT_G_CRED,
214e1eca
JA		 2716 },
2717 {
2718 .name = "prioclass",
e8b0e958 2719 .lname = "I/O nice priority class",
214e1eca 2720 .type = FIO_OPT_INT,
28727df7 2721 .off1 = td_var_offset(ioprio_class),
214e1eca
JA		 2722 .help = "Set job IO priority class",
2723 .minval = 0,
2724 .maxval = 3,
20eb06bd 2725 .interval = 1,
e8b0e958 2726 .category = FIO_OPT_C_GENERAL,
10860056 2727 .group = FIO_OPT_G_CRED,
214e1eca
JA		 2728 },
2729#endif
2730 {
2731 .name = "thinktime",
e8b0e958 2732 .lname = "Thinktime",
214e1eca
JA		 2733 .type = FIO_OPT_INT,
2734 .off1 = td_var_offset(thinktime),
2735 .help = "Idle time between IO buffers (usec)",
2736 .def = "0",
e8b0e958 2737 .category = FIO_OPT_C_IO,
3ceb458f 2738 .group = FIO_OPT_G_THINKTIME,
214e1eca
JA		 2739 },
2740 {
2741 .name = "thinktime_spin",
e8b0e958 2742 .lname = "Thinktime spin",
214e1eca
JA		 2743 .type = FIO_OPT_INT,
2744 .off1 = td_var_offset(thinktime_spin),
2745 .help = "Start think time by spinning this amount (usec)",
2746 .def = "0",
afdf9352 2747 .parent = "thinktime",
d71c154c 2748 .hide = 1,
e8b0e958 2749 .category = FIO_OPT_C_IO,
3ceb458f 2750 .group = FIO_OPT_G_THINKTIME,
214e1eca
JA		 2751 },
2752 {
2753 .name = "thinktime_blocks",
e8b0e958 2754 .lname = "Thinktime blocks",
214e1eca
JA		 2755 .type = FIO_OPT_INT,
2756 .off1 = td_var_offset(thinktime_blocks),
2757 .help = "IO buffer period between 'thinktime'",
2758 .def = "1",
afdf9352 2759 .parent = "thinktime",
d71c154c 2760 .hide = 1,
e8b0e958 2761 .category = FIO_OPT_C_IO,
3ceb458f 2762 .group = FIO_OPT_G_THINKTIME,
214e1eca
JA		 2763 },
2764 {
2765 .name = "rate",
e8b0e958 2766 .lname = "I/O rate",
e01b22b8 2767 .type = FIO_OPT_INT,
6eaf09d6
SL		 2768 .off1 = td_var_offset(rate[DDIR_READ]),
2769 .off2 = td_var_offset(rate[DDIR_WRITE]),
2770 .off3 = td_var_offset(rate[DDIR_TRIM]),
214e1eca 2771 .help = "Set bandwidth rate",
e8b0e958
JA		 2772 .category = FIO_OPT_C_IO,
2773 .group = FIO_OPT_G_RATE,
214e1eca
JA		 2774 },
2775 {
2776 .name = "ratemin",
e8b0e958 2777 .lname = "I/O min rate",
e01b22b8 2778 .type = FIO_OPT_INT,
6eaf09d6
SL		 2779 .off1 = td_var_offset(ratemin[DDIR_READ]),
2780 .off2 = td_var_offset(ratemin[DDIR_WRITE]),
2781 .off3 = td_var_offset(ratemin[DDIR_TRIM]),
4e991c23 2782 .help = "Job must meet this rate or it will be shutdown",
afdf9352 2783 .parent = "rate",
d71c154c 2784 .hide = 1,
e8b0e958
JA		 2785 .category = FIO_OPT_C_IO,
2786 .group = FIO_OPT_G_RATE,
4e991c23
JA		 2787 },
2788 {
2789 .name = "rate_iops",
e8b0e958 2790 .lname = "I/O rate IOPS",
e01b22b8 2791 .type = FIO_OPT_INT,
6eaf09d6
SL		 2792 .off1 = td_var_offset(rate_iops[DDIR_READ]),
2793 .off2 = td_var_offset(rate_iops[DDIR_WRITE]),
2794 .off3 = td_var_offset(rate_iops[DDIR_TRIM]),
4e991c23 2795 .help = "Limit IO used to this number of IO operations/sec",
d71c154c 2796 .hide = 1,
e8b0e958
JA		 2797 .category = FIO_OPT_C_IO,
2798 .group = FIO_OPT_G_RATE,
4e991c23
JA		 2799 },
2800 {
2801 .name = "rate_iops_min",
e8b0e958 2802 .lname = "I/O min rate IOPS",
e01b22b8 2803 .type = FIO_OPT_INT,
6eaf09d6
SL		 2804 .off1 = td_var_offset(rate_iops_min[DDIR_READ]),
2805 .off2 = td_var_offset(rate_iops_min[DDIR_WRITE]),
2806 .off3 = td_var_offset(rate_iops_min[DDIR_TRIM]),
03e20d68 2807 .help = "Job must meet this rate or it will be shut down",
afdf9352 2808 .parent = "rate_iops",
d71c154c 2809 .hide = 1,
e8b0e958
JA		 2810 .category = FIO_OPT_C_IO,
2811 .group = FIO_OPT_G_RATE,
214e1eca
JA		 2812 },
2813 {
2814 .name = "ratecycle",
e8b0e958 2815 .lname = "I/O rate cycle",
214e1eca
JA		 2816 .type = FIO_OPT_INT,
2817 .off1 = td_var_offset(ratecycle),
2818 .help = "Window average for rate limits (msec)",
2819 .def = "1000",
afdf9352 2820 .parent = "rate",
d71c154c 2821 .hide = 1,
e8b0e958
JA		 2822 .category = FIO_OPT_C_IO,
2823 .group = FIO_OPT_G_RATE,
214e1eca 2824 },
15501535
JA		 2825 {
2826 .name = "max_latency",
2827 .type = FIO_OPT_INT,
2828 .off1 = td_var_offset(max_latency),
2829 .help = "Maximum tolerated IO latency (usec)",
1e5324e7 2830 .category = FIO_OPT_C_IO,
3e260a46
JA		 2831 .group = FIO_OPT_G_LATPROF,
2832 },
2833 {
2834 .name = "latency_target",
2835 .lname = "Latency Target (usec)",
2836 .type = FIO_OPT_STR_VAL_TIME,
2837 .off1 = td_var_offset(latency_target),
2838 .help = "Ramp to max queue depth supporting this latency",
2839 .category = FIO_OPT_C_IO,
2840 .group = FIO_OPT_G_LATPROF,
2841 },
2842 {
2843 .name = "latency_window",
2844 .lname = "Latency Window (usec)",
2845 .type = FIO_OPT_STR_VAL_TIME,
2846 .off1 = td_var_offset(latency_window),
2847 .help = "Time to sustain latency_target",
2848 .category = FIO_OPT_C_IO,
2849 .group = FIO_OPT_G_LATPROF,
2850 },
2851 {
2852 .name = "latency_percentile",
2853 .lname = "Latency Percentile",
2854 .type = FIO_OPT_FLOAT_LIST,
2855 .off1 = td_var_offset(latency_percentile),
2856 .help = "Percentile of IOs must be below latency_target",
2857 .def = "100",
2858 .maxlen = 1,
2859 .minfp = 0.0,
2860 .maxfp = 100.0,
2861 .category = FIO_OPT_C_IO,
2862 .group = FIO_OPT_G_LATPROF,
15501535 2863 },
214e1eca
JA		 2864 {
2865 .name = "invalidate",
e8b0e958 2866 .lname = "Cache invalidate",
214e1eca
JA		 2867 .type = FIO_OPT_BOOL,
2868 .off1 = td_var_offset(invalidate_cache),
2869 .help = "Invalidate buffer/page cache prior to running job",
2870 .def = "1",
e8b0e958 2871 .category = FIO_OPT_C_IO,
3ceb458f 2872 .group = FIO_OPT_G_IO_TYPE,
214e1eca
JA		 2873 },
2874 {
2875 .name = "sync",
e8b0e958 2876 .lname = "Synchronous I/O",
214e1eca
JA		 2877 .type = FIO_OPT_BOOL,
2878 .off1 = td_var_offset(sync_io),
2879 .help = "Use O_SYNC for buffered writes",
2880 .def = "0",
67a1000f 2881 .parent = "buffered",
d71c154c 2882 .hide = 1,
e8b0e958 2883 .category = FIO_OPT_C_IO,
3ceb458f 2884 .group = FIO_OPT_G_IO_TYPE,
214e1eca 2885 },
214e1eca
JA		 2886 {
2887 .name = "create_serialize",
e8b0e958 2888 .lname = "Create serialize",
214e1eca
JA		 2889 .type = FIO_OPT_BOOL,
2890 .off1 = td_var_offset(create_serialize),
2891 .help = "Serialize creating of job files",
2892 .def = "1",
e8b0e958
JA		 2893 .category = FIO_OPT_C_FILE,
2894 .group = FIO_OPT_G_INVALID,
214e1eca
JA		 2895 },
2896 {
2897 .name = "create_fsync",
e8b0e958 2898 .lname = "Create fsync",
214e1eca
JA		 2899 .type = FIO_OPT_BOOL,
2900 .off1 = td_var_offset(create_fsync),
03e20d68 2901 .help = "fsync file after creation",
214e1eca 2902 .def = "1",
e8b0e958
JA		 2903 .category = FIO_OPT_C_FILE,
2904 .group = FIO_OPT_G_INVALID,
214e1eca 2905 },
814452bd
JA		 2906 {
2907 .name = "create_on_open",
e8b0e958 2908 .lname = "Create on open",
814452bd
JA		 2909 .type = FIO_OPT_BOOL,
2910 .off1 = td_var_offset(create_on_open),
2911 .help = "Create files when they are opened for IO",
2912 .def = "0",
e8b0e958
JA		 2913 .category = FIO_OPT_C_FILE,
2914 .group = FIO_OPT_G_INVALID,
814452bd 2915 },
25460cf6
JA		 2916 {
2917 .name = "create_only",
2918 .type = FIO_OPT_BOOL,
2919 .off1 = td_var_offset(create_only),
2920 .help = "Only perform file creation phase",
d17fda71 2921 .category = FIO_OPT_C_FILE,
25460cf6
JA		 2922 .def = "0",
2923 },
0b9d69ec 2924 {
afad68f7 2925 .name = "pre_read",
e8b0e958 2926 .lname = "Pre-read files",
afad68f7
ZY		 2927 .type = FIO_OPT_BOOL,
2928 .off1 = td_var_offset(pre_read),
03e20d68 2929 .help = "Pre-read files before starting official testing",
afad68f7 2930 .def = "0",
e8b0e958
JA		 2931 .category = FIO_OPT_C_FILE,
2932 .group = FIO_OPT_G_INVALID,
afad68f7 2933 },
214e1eca
JA		 2934#ifdef FIO_HAVE_CPU_AFFINITY
2935 {
2936 .name = "cpumask",
e8b0e958 2937 .lname = "CPU mask",
214e1eca
JA		 2938 .type = FIO_OPT_INT,
2939 .cb = str_cpumask_cb,
2940 .help = "CPU affinity mask",
e8b0e958 2941 .category = FIO_OPT_C_GENERAL,
10860056 2942 .group = FIO_OPT_G_CRED,
214e1eca 2943 },
d2e268b0
JA		 2944 {
2945 .name = "cpus_allowed",
e8b0e958 2946 .lname = "CPUs allowed",
d2e268b0
JA		 2947 .type = FIO_OPT_STR,
2948 .cb = str_cpus_allowed_cb,
2949 .help = "Set CPUs allowed",
e8b0e958 2950 .category = FIO_OPT_C_GENERAL,
10860056 2951 .group = FIO_OPT_G_CRED,
d2e268b0 2952 },
c2acfbac
JA		 2953 {
2954 .name = "cpus_allowed_policy",
2955 .lname = "CPUs allowed distribution policy",
2956 .type = FIO_OPT_STR,
2957 .off1 = td_var_offset(cpus_allowed_policy),
2958 .help = "Distribution policy for cpus_allowed",
2959 .parent = "cpus_allowed",
2960 .prio = 1,
2961 .posval = {
2962 { .ival = "shared",
2963 .oval = FIO_CPUS_SHARED,
2964 .help = "Mask shared between threads",
2965 },
2966 { .ival = "split",
2967 .oval = FIO_CPUS_SPLIT,
2968 .help = "Mask split between threads",
2969 },
2970 },
2971 .category = FIO_OPT_C_GENERAL,
2972 .group = FIO_OPT_G_CRED,
2973 },
d0b937ed 2974#endif
67bf9823 2975#ifdef CONFIG_LIBNUMA
d0b937ed
YR		 2976 {
2977 .name = "numa_cpu_nodes",
2978 .type = FIO_OPT_STR,
2979 .cb = str_numa_cpunodes_cb,
2980 .help = "NUMA CPU nodes bind",
6be54b2d
JA		 2981 .category = FIO_OPT_C_GENERAL,
2982 .group = FIO_OPT_G_INVALID,
d0b937ed
YR		 2983 },
2984 {
2985 .name = "numa_mem_policy",
2986 .type = FIO_OPT_STR,
2987 .cb = str_numa_mpol_cb,
2988 .help = "NUMA memory policy setup",
6be54b2d
JA		 2989 .category = FIO_OPT_C_GENERAL,
2990 .group = FIO_OPT_G_INVALID,
d0b937ed 2991 },
214e1eca
JA		 2992#endif
2993 {
2994 .name = "end_fsync",
e8b0e958 2995 .lname = "End fsync",
214e1eca
JA		 2996 .type = FIO_OPT_BOOL,
2997 .off1 = td_var_offset(end_fsync),
2998 .help = "Include fsync at the end of job",
2999 .def = "0",
e8b0e958
JA		 3000 .category = FIO_OPT_C_FILE,
3001 .group = FIO_OPT_G_INVALID,
214e1eca
JA		 3002 },
3003 {
3004 .name = "fsync_on_close",
e8b0e958 3005 .lname = "Fsync on close",
214e1eca
JA		 3006 .type = FIO_OPT_BOOL,
3007 .off1 = td_var_offset(fsync_on_close),
3008 .help = "fsync files on close",
3009 .def = "0",
e8b0e958
JA		 3010 .category = FIO_OPT_C_FILE,
3011 .group = FIO_OPT_G_INVALID,
214e1eca
JA		 3012 },
3013 {
3014 .name = "unlink",
e8b0e958 3015 .lname = "Unlink file",
214e1eca
JA		 3016 .type = FIO_OPT_BOOL,
3017 .off1 = td_var_offset(unlink),
3018 .help = "Unlink created files after job has completed",
3019 .def = "0",
e8b0e958
JA		 3020 .category = FIO_OPT_C_FILE,
3021 .group = FIO_OPT_G_INVALID,
214e1eca
JA		 3022 },
3023 {
3024 .name = "exitall",
e8b0e958 3025 .lname = "Exit-all on terminate",
214e1eca
JA		 3026 .type = FIO_OPT_STR_SET,
3027 .cb = str_exitall_cb,
3028 .help = "Terminate all jobs when one exits",
e8b0e958 3029 .category = FIO_OPT_C_GENERAL,
a1f6afec 3030 .group = FIO_OPT_G_PROCESS,
214e1eca
JA		 3031 },
3032 {
3033 .name = "stonewall",
e8b0e958 3034 .lname = "Wait for previous",
d392365e 3035 .alias = "wait_for_previous",
214e1eca
JA		 3036 .type = FIO_OPT_STR_SET,
3037 .off1 = td_var_offset(stonewall),
3038 .help = "Insert a hard barrier between this job and previous",
e8b0e958 3039 .category = FIO_OPT_C_GENERAL,
a1f6afec 3040 .group = FIO_OPT_G_PROCESS,
214e1eca 3041 },
b3d62a75
JA		 3042 {
3043 .name = "new_group",
e8b0e958 3044 .lname = "New group",
b3d62a75
JA		 3045 .type = FIO_OPT_STR_SET,
3046 .off1 = td_var_offset(new_group),
3047 .help = "Mark the start of a new group (for reporting)",
e8b0e958 3048 .category = FIO_OPT_C_GENERAL,
a1f6afec 3049 .group = FIO_OPT_G_PROCESS,
b3d62a75 3050 },
214e1eca
JA		 3051 {
3052 .name = "thread",
e8b0e958 3053 .lname = "Thread",
214e1eca
JA		 3054 .type = FIO_OPT_STR_SET,
3055 .off1 = td_var_offset(use_thread),
20eb06bd 3056 .help = "Use threads instead of processes",
c8931876
JA		 3057#ifdef CONFIG_NO_SHM
3058 .def = "1",
3059 .no_warn_def = 1,
3060#endif
e8b0e958 3061 .category = FIO_OPT_C_GENERAL,
a1f6afec 3062 .group = FIO_OPT_G_PROCESS,
214e1eca
JA		 3063 },
3064 {
3065 .name = "write_bw_log",
e8b0e958 3066 .lname = "Write bandwidth log",
203160d5
JA		 3067 .type = FIO_OPT_STR_STORE,
3068 .off1 = td_var_offset(bw_log_file),
214e1eca 3069 .help = "Write log of bandwidth during run",
e8b0e958
JA		 3070 .category = FIO_OPT_C_LOG,
3071 .group = FIO_OPT_G_INVALID,
214e1eca
JA		 3072 },
3073 {
3074 .name = "write_lat_log",
e8b0e958 3075 .lname = "Write latency log",
203160d5
JA		 3076 .type = FIO_OPT_STR_STORE,
3077 .off1 = td_var_offset(lat_log_file),
214e1eca 3078 .help = "Write log of latency during run",
e8b0e958
JA		 3079 .category = FIO_OPT_C_LOG,
3080 .group = FIO_OPT_G_INVALID,
214e1eca 3081 },
c8eeb9df
JA		 3082 {
3083 .name = "write_iops_log",
e8b0e958 3084 .lname = "Write IOPS log",
577c83bd 3085 .type = FIO_OPT_STR_STORE,
203160d5 3086 .off1 = td_var_offset(iops_log_file),
c8eeb9df 3087 .help = "Write log of IOPS during run",
e8b0e958
JA		 3088 .category = FIO_OPT_C_LOG,
3089 .group = FIO_OPT_G_INVALID,
c8eeb9df 3090 },
b8bc8cba
JA		 3091 {
3092 .name = "log_avg_msec",
e8b0e958 3093 .lname = "Log averaging (msec)",
b8bc8cba
JA		 3094 .type = FIO_OPT_INT,
3095 .off1 = td_var_offset(log_avg_msec),
3096 .help = "Average bw/iops/lat logs over this period of time",
3097 .def = "0",
e8b0e958
JA		 3098 .category = FIO_OPT_C_LOG,
3099 .group = FIO_OPT_G_INVALID,
b8bc8cba 3100 },
ae588852
JA		 3101 {
3102 .name = "log_offset",
3103 .lname = "Log offset of IO",
3104 .type = FIO_OPT_BOOL,
3105 .off1 = td_var_offset(log_offset),
3106 .help = "Include offset of IO for each log entry",
3107 .def = "0",
3108 .category = FIO_OPT_C_LOG,
3109 .group = FIO_OPT_G_INVALID,
3110 },
aee2ab67
JA		 3111#ifdef CONFIG_ZLIB
3112 {
3113 .name = "log_compression",
3114 .lname = "Log compression",
3115 .type = FIO_OPT_INT,
3116 .off1 = td_var_offset(log_gz),
3117 .help = "Log in compressed chunks of this size",
3118 .minval = 32 * 1024 * 1024ULL,
3119 .maxval = 512 * 1024 * 1024ULL,
3120 .category = FIO_OPT_C_LOG,
3121 .group = FIO_OPT_G_INVALID,
3122 },
b26317c9
JA		 3123 {
3124 .name = "log_store_compressed",
3125 .lname = "Log store compressed",
3126 .type = FIO_OPT_BOOL,
3127 .off1 = td_var_offset(log_gz_store),
3128 .help = "Store logs in a compressed format",
3129 .category = FIO_OPT_C_LOG,
3130 .group = FIO_OPT_G_INVALID,
3131 },
aee2ab67 3132#endif
c504ee55
JA		 3133 {
3134 .name = "bwavgtime",
3135 .lname = "Bandwidth average time",
3136 .type = FIO_OPT_INT,
3137 .off1 = td_var_offset(bw_avg_time),
3138 .help = "Time window over which to calculate bandwidth"
3139 " (msec)",
3140 .def = "500",
3141 .parent = "write_bw_log",
3142 .hide = 1,
3143 .interval = 100,
3144 .category = FIO_OPT_C_LOG,
3145 .group = FIO_OPT_G_INVALID,
3146 },
3147 {
3148 .name = "iopsavgtime",
3149 .lname = "IOPS average time",
3150 .type = FIO_OPT_INT,
3151 .off1 = td_var_offset(iops_avg_time),
3152 .help = "Time window over which to calculate IOPS (msec)",
3153 .def = "500",
3154 .parent = "write_iops_log",
3155 .hide = 1,
3156 .interval = 100,
3157 .category = FIO_OPT_C_LOG,
3158 .group = FIO_OPT_G_INVALID,
3159 },
214e1eca
JA		 3160 {
3161 .name = "group_reporting",
e8b0e958 3162 .lname = "Group reporting",
d2507043 3163 .type = FIO_OPT_STR_SET,
214e1eca
JA		 3164 .off1 = td_var_offset(group_reporting),
3165 .help = "Do reporting on a per-group basis",
10860056 3166 .category = FIO_OPT_C_STAT,
e8b0e958 3167 .group = FIO_OPT_G_INVALID,
214e1eca 3168 },
e9459e5a
JA		 3169 {
3170 .name = "zero_buffers",
e8b0e958 3171 .lname = "Zero I/O buffers",
e9459e5a
JA		 3172 .type = FIO_OPT_STR_SET,
3173 .off1 = td_var_offset(zero_buffers),
3174 .help = "Init IO buffers to all zeroes",
e8b0e958 3175 .category = FIO_OPT_C_IO,
3ceb458f 3176 .group = FIO_OPT_G_IO_BUF,
e9459e5a 3177 },
5973cafb
JA		 3178 {
3179 .name = "refill_buffers",
e8b0e958 3180 .lname = "Refill I/O buffers",
5973cafb
JA		 3181 .type = FIO_OPT_STR_SET,
3182 .off1 = td_var_offset(refill_buffers),
3183 .help = "Refill IO buffers on every IO submit",
e8b0e958 3184 .category = FIO_OPT_C_IO,
3ceb458f 3185 .group = FIO_OPT_G_IO_BUF,
5973cafb 3186 },
fd68418e
JA		 3187 {
3188 .name = "scramble_buffers",
e8b0e958 3189 .lname = "Scramble I/O buffers",
fd68418e
JA		 3190 .type = FIO_OPT_BOOL,
3191 .off1 = td_var_offset(scramble_buffers),
3192 .help = "Slightly scramble buffers on every IO submit",
3193 .def = "1",
e8b0e958 3194 .category = FIO_OPT_C_IO,
3ceb458f 3195 .group = FIO_OPT_G_IO_BUF,
fd68418e 3196 },
ce35b1ec
JA		 3197 {
3198 .name = "buffer_pattern",
3199 .lname = "Buffer pattern",
3200 .type = FIO_OPT_STR,
3201 .cb = str_buffer_pattern_cb,
3202 .help = "Fill pattern for IO buffers",
3203 .category = FIO_OPT_C_IO,
3204 .group = FIO_OPT_G_IO_BUF,
3205 },
9c42684e
JA		 3206 {
3207 .name = "buffer_compress_percentage",
e8b0e958 3208 .lname = "Buffer compression percentage",
9c42684e 3209 .type = FIO_OPT_INT,
bedc9dc2 3210 .cb = str_buffer_compress_cb,
9c42684e 3211 .maxval = 100,
e7f5de90 3212 .minval = 0,
9c42684e 3213 .help = "How compressible the buffer is (approximately)",
20eb06bd 3214 .interval = 5,
e8b0e958 3215 .category = FIO_OPT_C_IO,
3ceb458f 3216 .group = FIO_OPT_G_IO_BUF,
9c42684e 3217 },
f97a43a1
JA		 3218 {
3219 .name = "buffer_compress_chunk",
e8b0e958 3220 .lname = "Buffer compression chunk size",
f97a43a1
JA		 3221 .type = FIO_OPT_INT,
3222 .off1 = td_var_offset(compress_chunk),
207b18e4 3223 .parent = "buffer_compress_percentage",
d71c154c 3224 .hide = 1,
f97a43a1 3225 .help = "Size of compressible region in buffer",
20eb06bd 3226 .interval = 256,
e8b0e958 3227 .category = FIO_OPT_C_IO,
3ceb458f 3228 .group = FIO_OPT_G_IO_BUF,
f97a43a1 3229 },
83349190
YH		 3230 {
3231 .name = "clat_percentiles",
e8b0e958 3232 .lname = "Completion latency percentiles",
83349190
YH		 3233 .type = FIO_OPT_BOOL,
3234 .off1 = td_var_offset(clat_percentiles),
3235 .help = "Enable the reporting of completion latency percentiles",
467b35ed 3236 .def = "1",
e8b0e958
JA		 3237 .category = FIO_OPT_C_STAT,
3238 .group = FIO_OPT_G_INVALID,
83349190
YH		 3239 },
3240 {
3241 .name = "percentile_list",
e8b0e958 3242 .lname = "Completion latency percentile list",
83349190
YH		 3243 .type = FIO_OPT_FLOAT_LIST,
3244 .off1 = td_var_offset(percentile_list),
435d195a 3245 .off2 = td_var_offset(percentile_precision),
83349190 3246 .help = "Specify a custom list of percentiles to report",
fd112d34 3247 .def = "1:5:10:20:30:40:50:60:70:80:90:95:99:99.5:99.9:99.95:99.99",
83349190
YH		 3248 .maxlen = FIO_IO_U_LIST_MAX_LEN,
3249 .minfp = 0.0,
3250 .maxfp = 100.0,
e8b0e958
JA		 3251 .category = FIO_OPT_C_STAT,
3252 .group = FIO_OPT_G_INVALID,
83349190
YH		 3253 },
3254
0a839f30
JA		 3255#ifdef FIO_HAVE_DISK_UTIL
3256 {
3257 .name = "disk_util",
e8b0e958 3258 .lname = "Disk utilization",
0a839f30
JA		 3259 .type = FIO_OPT_BOOL,
3260 .off1 = td_var_offset(do_disk_util),
f66ab3c8 3261 .help = "Log disk utilization statistics",
0a839f30 3262 .def = "1",
e8b0e958
JA		 3263 .category = FIO_OPT_C_STAT,
3264 .group = FIO_OPT_G_INVALID,
0a839f30
JA		 3265 },
3266#endif
993bf48b
JA		 3267 {
3268 .name = "gtod_reduce",
e8b0e958 3269 .lname = "Reduce gettimeofday() calls",
993bf48b
JA		 3270 .type = FIO_OPT_BOOL,
3271 .help = "Greatly reduce number of gettimeofday() calls",
3272 .cb = str_gtod_reduce_cb,
3273 .def = "0",
a4ed77fe 3274 .hide_on_set = 1,
e8b0e958
JA		 3275 .category = FIO_OPT_C_STAT,
3276 .group = FIO_OPT_G_INVALID,
993bf48b 3277 },
02af0988
JA		 3278 {
3279 .name = "disable_lat",
e8b0e958 3280 .lname = "Disable all latency stats",
02af0988
JA		 3281 .type = FIO_OPT_BOOL,
3282 .off1 = td_var_offset(disable_lat),
3283 .help = "Disable latency numbers",
3284 .parent = "gtod_reduce",
d71c154c 3285 .hide = 1,
02af0988 3286 .def = "0",
e8b0e958
JA		 3287 .category = FIO_OPT_C_STAT,
3288 .group = FIO_OPT_G_INVALID,
02af0988 3289 },
9520ebb9
JA		 3290 {
3291 .name = "disable_clat",
e8b0e958 3292 .lname = "Disable completion latency stats",
9520ebb9
JA		 3293 .type = FIO_OPT_BOOL,
3294 .off1 = td_var_offset(disable_clat),
3295 .help = "Disable completion latency numbers",
993bf48b 3296 .parent = "gtod_reduce",
d71c154c 3297 .hide = 1,
9520ebb9 3298 .def = "0",
e8b0e958
JA		 3299 .category = FIO_OPT_C_STAT,
3300 .group = FIO_OPT_G_INVALID,
9520ebb9
JA		 3301 },
3302 {
3303 .name = "disable_slat",
e8b0e958 3304 .lname = "Disable submission latency stats",
9520ebb9
JA		 3305 .type = FIO_OPT_BOOL,
3306 .off1 = td_var_offset(disable_slat),
03e20d68 3307 .help = "Disable submission latency numbers",
993bf48b 3308 .parent = "gtod_reduce",
d71c154c 3309 .hide = 1,
9520ebb9 3310 .def = "0",
e8b0e958
JA		 3311 .category = FIO_OPT_C_STAT,
3312 .group = FIO_OPT_G_INVALID,
9520ebb9
JA		 3313 },
3314 {
3315 .name = "disable_bw_measurement",
e8b0e958 3316 .lname = "Disable bandwidth stats",
9520ebb9
JA		 3317 .type = FIO_OPT_BOOL,
3318 .off1 = td_var_offset(disable_bw),
3319 .help = "Disable bandwidth logging",
993bf48b 3320 .parent = "gtod_reduce",
d71c154c 3321 .hide = 1,
9520ebb9 3322 .def = "0",
e8b0e958
JA		 3323 .category = FIO_OPT_C_STAT,
3324 .group = FIO_OPT_G_INVALID,
9520ebb9 3325 },
be4ecfdf
JA		 3326 {
3327 .name = "gtod_cpu",
e8b0e958 3328 .lname = "Dedicated gettimeofday() CPU",
be4ecfdf
JA		 3329 .type = FIO_OPT_INT,
3330 .cb = str_gtod_cpu_cb,
03e20d68 3331 .help = "Set up dedicated gettimeofday() thread on this CPU",
29d43ff9 3332 .verify = gtod_cpu_verify,
e8b0e958 3333 .category = FIO_OPT_C_GENERAL,
10860056 3334 .group = FIO_OPT_G_CLOCK,
be4ecfdf 3335 },
771e58be
JA		 3336 {
3337 .name = "unified_rw_reporting",
3338 .type = FIO_OPT_BOOL,
3339 .off1 = td_var_offset(unified_rw_rep),
3340 .help = "Unify reporting across data direction",
3341 .def = "0",
90b7a96d
JA		 3342 .category = FIO_OPT_C_GENERAL,
3343 .group = FIO_OPT_G_INVALID,
771e58be 3344 },
f2bba182
RR		 3345 {
3346 .name = "continue_on_error",
e8b0e958 3347 .lname = "Continue on error",
06842027 3348 .type = FIO_OPT_STR,
f2bba182 3349 .off1 = td_var_offset(continue_on_error),
03e20d68 3350 .help = "Continue on non-fatal errors during IO",
06842027 3351 .def = "none",
e8b0e958 3352 .category = FIO_OPT_C_GENERAL,
bc3f552f 3353 .group = FIO_OPT_G_ERR,
06842027
SL		 3354 .posval = {
3355 { .ival = "none",
3356 .oval = ERROR_TYPE_NONE,
3357 .help = "Exit when an error is encountered",
3358 },
3359 { .ival = "read",
3360 .oval = ERROR_TYPE_READ,
3361 .help = "Continue on read errors only",
3362 },
3363 { .ival = "write",
3364 .oval = ERROR_TYPE_WRITE,
3365 .help = "Continue on write errors only",
3366 },
3367 { .ival = "io",
3368 .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
3369 .help = "Continue on any IO errors",
3370 },
3371 { .ival = "verify",
3372 .oval = ERROR_TYPE_VERIFY,
3373 .help = "Continue on verify errors only",
3374 },
3375 { .ival = "all",
3376 .oval = ERROR_TYPE_ANY,
3377 .help = "Continue on all io and verify errors",
3378 },
3379 { .ival = "0",
3380 .oval = ERROR_TYPE_NONE,
3381 .help = "Alias for 'none'",
3382 },
3383 { .ival = "1",
3384 .oval = ERROR_TYPE_ANY,
3385 .help = "Alias for 'all'",
3386 },
3387 },
f2bba182 3388 },
8b28bd41
DM		 3389 {
3390 .name = "ignore_error",
3391 .type = FIO_OPT_STR,
3392 .cb = str_ignore_error_cb,
3393 .help = "Set a specific list of errors to ignore",
3394 .parent = "rw",
a94eb99a 3395 .category = FIO_OPT_C_GENERAL,
bc3f552f 3396 .group = FIO_OPT_G_ERR,
8b28bd41
DM		 3397 },
3398 {
3399 .name = "error_dump",
3400 .type = FIO_OPT_BOOL,
3401 .off1 = td_var_offset(error_dump),
3402 .def = "0",
3403 .help = "Dump info on each error",
a94eb99a 3404 .category = FIO_OPT_C_GENERAL,
bc3f552f 3405 .group = FIO_OPT_G_ERR,
8b28bd41 3406 },
9ac8a797
JA		 3407 {
3408 .name = "profile",
e8b0e958 3409 .lname = "Profile",
79d16311 3410 .type = FIO_OPT_STR_STORE,
9ac8a797 3411 .off1 = td_var_offset(profile),
9ac8a797 3412 .help = "Select a specific builtin performance test",
13fca827 3413 .category = FIO_OPT_C_PROFILE,
e8b0e958 3414 .group = FIO_OPT_G_INVALID,
9ac8a797 3415 },
a696fa2a
JA		 3416 {
3417 .name = "cgroup",
e8b0e958 3418 .lname = "Cgroup",
a696fa2a
JA		 3419 .type = FIO_OPT_STR_STORE,
3420 .off1 = td_var_offset(cgroup),
3421 .help = "Add job to cgroup of this name",
e8b0e958 3422 .category = FIO_OPT_C_GENERAL,
a1f6afec
JA		 3423 .group = FIO_OPT_G_CGROUP,
3424 },
3425 {
3426 .name = "cgroup_nodelete",
3427 .lname = "Cgroup no-delete",
3428 .type = FIO_OPT_BOOL,
3429 .off1 = td_var_offset(cgroup_nodelete),
3430 .help = "Do not delete cgroups after job completion",
3431 .def = "0",
3432 .parent = "cgroup",
3433 .category = FIO_OPT_C_GENERAL,
3434 .group = FIO_OPT_G_CGROUP,
a696fa2a
JA		 3435 },
3436 {
3437 .name = "cgroup_weight",
e8b0e958 3438 .lname = "Cgroup weight",
a696fa2a
JA		 3439 .type = FIO_OPT_INT,
3440 .off1 = td_var_offset(cgroup_weight),
3441 .help = "Use given weight for cgroup",
3442 .minval = 100,
3443 .maxval = 1000,
a1f6afec 3444 .parent = "cgroup",
e8b0e958 3445 .category = FIO_OPT_C_GENERAL,
a1f6afec 3446 .group = FIO_OPT_G_CGROUP,
7de87099 3447 },
e0b0d892
JA		 3448 {
3449 .name = "uid",
e8b0e958 3450 .lname = "User ID",
e0b0d892
JA		 3451 .type = FIO_OPT_INT,
3452 .off1 = td_var_offset(uid),
3453 .help = "Run job with this user ID",
e8b0e958 3454 .category = FIO_OPT_C_GENERAL,
10860056 3455 .group = FIO_OPT_G_CRED,
e0b0d892
JA		 3456 },
3457 {
3458 .name = "gid",
e8b0e958 3459 .lname = "Group ID",
e0b0d892
JA		 3460 .type = FIO_OPT_INT,
3461 .off1 = td_var_offset(gid),
3462 .help = "Run job with this group ID",
e8b0e958 3463 .category = FIO_OPT_C_GENERAL,
10860056 3464 .group = FIO_OPT_G_CRED,
e0b0d892 3465 },
a1f6afec
JA		 3466 {
3467 .name = "kb_base",
3468 .lname = "KB Base",
3469 .type = FIO_OPT_INT,
3470 .off1 = td_var_offset(kb_base),
a1f6afec
JA		 3471 .prio = 1,
3472 .def = "1024",
ba9c7219
JA		 3473 .posval = {
3474 { .ival = "1024",
3475 .oval = 1024,
3476 .help = "Use 1024 as the K base",
3477 },
3478 { .ival = "1000",
3479 .oval = 1000,
3480 .help = "Use 1000 as the K base",
3481 },
3482 },
a1f6afec
JA		 3483 .help = "How many bytes per KB for reporting (1000 or 1024)",
3484 .category = FIO_OPT_C_GENERAL,
3485 .group = FIO_OPT_G_INVALID,
3486 },
cf3a0518
JA		 3487 {
3488 .name = "unit_base",
ba9c7219 3489 .lname = "Base unit for reporting (Bits or Bytes)",
cf3a0518
JA		 3490 .type = FIO_OPT_INT,
3491 .off1 = td_var_offset(unit_base),
cf3a0518 3492 .prio = 1,
71a08258
JA		 3493 .posval = {
3494 { .ival = "0",
3495 .oval = 0,
3496 .help = "Auto-detect",
3497 },
3498 { .ival = "8",
3499 .oval = 8,
3500 .help = "Normal (byte based)",
3501 },
3502 { .ival = "1",
3503 .oval = 1,
3504 .help = "Bit based",
3505 },
3506 },
cf3a0518
JA		 3507 .help = "Bit multiple of result summary data (8 for byte, 1 for bit)",
3508 .category = FIO_OPT_C_GENERAL,
3509 .group = FIO_OPT_G_INVALID,
3510 },
3ceb458f
JA		 3511 {
3512 .name = "hugepage-size",
3513 .lname = "Hugepage size",
3514 .type = FIO_OPT_INT,
3515 .off1 = td_var_offset(hugepage_size),
3516 .help = "When using hugepages, specify size of each page",
3517 .def = __fio_stringify(FIO_HUGE_PAGE),
3518 .interval = 1024 * 1024,
3519 .category = FIO_OPT_C_GENERAL,
3520 .group = FIO_OPT_G_INVALID,
3521 },
9e684a49
DE		 3522 {
3523 .name = "flow_id",
e8b0e958 3524 .lname = "I/O flow ID",
9e684a49
DE		 3525 .type = FIO_OPT_INT,
3526 .off1 = td_var_offset(flow_id),
3527 .help = "The flow index ID to use",
3528 .def = "0",
e8b0e958
JA		 3529 .category = FIO_OPT_C_IO,
3530 .group = FIO_OPT_G_IO_FLOW,
9e684a49
DE		 3531 },
3532 {
3533 .name = "flow",
e8b0e958 3534 .lname = "I/O flow weight",
9e684a49
DE		 3535 .type = FIO_OPT_INT,
3536 .off1 = td_var_offset(flow),
3537 .help = "Weight for flow control of this job",
3538 .parent = "flow_id",
d71c154c 3539 .hide = 1,
9e684a49 3540 .def = "0",
e8b0e958
JA		 3541 .category = FIO_OPT_C_IO,
3542 .group = FIO_OPT_G_IO_FLOW,
9e684a49
DE		 3543 },
3544 {
3545 .name = "flow_watermark",
e8b0e958 3546 .lname = "I/O flow watermark",
9e684a49
DE		 3547 .type = FIO_OPT_INT,
3548 .off1 = td_var_offset(flow_watermark),
3549 .help = "High watermark for flow control. This option"
3550 " should be set to the same value for all threads"
3551 " with non-zero flow.",
3552 .parent = "flow_id",
d71c154c 3553 .hide = 1,
9e684a49 3554 .def = "1024",
e8b0e958
JA		 3555 .category = FIO_OPT_C_IO,
3556 .group = FIO_OPT_G_IO_FLOW,
9e684a49
DE		 3557 },
3558 {
3559 .name = "flow_sleep",
e8b0e958 3560 .lname = "I/O flow sleep",
9e684a49
DE		 3561 .type = FIO_OPT_INT,
3562 .off1 = td_var_offset(flow_sleep),
3563 .help = "How many microseconds to sleep after being held"
3564 " back by the flow control mechanism",
3565 .parent = "flow_id",
d71c154c 3566 .hide = 1,
9e684a49 3567 .def = "0",
e8b0e958
JA		 3568 .category = FIO_OPT_C_IO,
3569 .group = FIO_OPT_G_IO_FLOW,
9e684a49 3570 },
214e1eca
JA		 3571 {
3572 .name = NULL,
3573 },
3574};
3575
17af15d4 3576static void add_to_lopt(struct option *lopt, struct fio_option *o,
de890a1e 3577 const char *name, int val)
9f81736c 3578{
17af15d4 3579 lopt->name = (char *) name;
de890a1e 3580 lopt->val = val;
9f81736c 3581 if (o->type == FIO_OPT_STR_SET)
ff52be3d 3582 lopt->has_arg = optional_argument;
9f81736c
JA		 3583 else
3584 lopt->has_arg = required_argument;
3585}
3586
de890a1e
SL		 3587static void options_to_lopts(struct fio_option *opts,
3588 struct option *long_options,
3589 int i, int option_type)
214e1eca 3590{
de890a1e 3591 struct fio_option *o = &opts[0];
214e1eca 3592 while (o->name) {
de890a1e 3593 add_to_lopt(&long_options[i], o, o->name, option_type);
17af15d4
JA		 3594 if (o->alias) {
3595 i++;
de890a1e 3596 add_to_lopt(&long_options[i], o, o->alias, option_type);
17af15d4 3597 }
214e1eca
JA		 3598
3599 i++;
3600 o++;
3601 assert(i < FIO_NR_OPTIONS);
3602 }
3603}
3604
de890a1e
SL		 3605void fio_options_set_ioengine_opts(struct option *long_options,
3606 struct thread_data *td)
3607{
3608 unsigned int i;
3609
3610 i = 0;
3611 while (long_options[i].name) {
3612 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
3613 memset(&long_options[i], 0, sizeof(*long_options));
3614 break;
3615 }
3616 i++;
3617 }
3618
3619 /*
3620 * Just clear out the prior ioengine options.
3621 */
3622 if (!td || !td->eo)
3623 return;
3624
3625 options_to_lopts(td->io_ops->options, long_options, i,
3626 FIO_GETOPT_IOENGINE);
3627}
3628
3629void fio_options_dup_and_init(struct option *long_options)
3630{
3631 unsigned int i;
3632
9af4a244 3633 options_init(fio_options);
de890a1e
SL		 3634
3635 i = 0;
3636 while (long_options[i].name)
3637 i++;
3638
9af4a244 3639 options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
de890a1e
SL		 3640}
3641
74929ac2
JA		 3642struct fio_keyword {
3643 const char *word;
3644 const char *desc;
3645 char *replace;
3646};
3647
3648static struct fio_keyword fio_keywords[] = {
3649 {
3650 .word = "$pagesize",
3651 .desc = "Page size in the system",
3652 },
3653 {
3654 .word = "$mb_memory",
3655 .desc = "Megabytes of memory online",
3656 },
3657 {
3658 .word = "$ncpus",
3659 .desc = "Number of CPUs online in the system",
3660 },
3661 {
3662 .word = NULL,
3663 },
3664};
3665
3666void fio_keywords_init(void)
3667{
3b2e1464 3668 unsigned long long mb_memory;
74929ac2
JA		 3669 char buf[128];
3670 long l;
3671
a4cfc477 3672 sprintf(buf, "%lu", (unsigned long) page_size);
74929ac2
JA		 3673 fio_keywords[0].replace = strdup(buf);
3674
8eb016d3 3675 mb_memory = os_phys_mem() / (1024 * 1024);
3b2e1464 3676 sprintf(buf, "%llu", mb_memory);
74929ac2
JA		 3677 fio_keywords[1].replace = strdup(buf);
3678
c00a2289 3679 l = cpus_online();
74929ac2
JA		 3680 sprintf(buf, "%lu", l);
3681 fio_keywords[2].replace = strdup(buf);
3682}
3683
892a6ffc
JA		 3684#define BC_APP "bc"
3685
3686static char *bc_calc(char *str)
3687{
d0c814ec 3688 char buf[128], *tmp;
892a6ffc
JA		 3689 FILE *f;
3690 int ret;
3691
3692 /*
3693 * No math, just return string
3694 */
d0c814ec
SL		 3695 if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
3696 !strchr(str, '/')) || strchr(str, '\''))
892a6ffc
JA		 3697 return str;
3698
3699 /*
3700 * Split option from value, we only need to calculate the value
3701 */
3702 tmp = strchr(str, '=');
3703 if (!tmp)
3704 return str;
3705
3706 tmp++;
892a6ffc 3707
d0c814ec
SL		 3708 /*
3709 * Prevent buffer overflows; such a case isn't reasonable anyway
3710 */
3711 if (strlen(str) >= 128 || strlen(tmp) > 100)
3712 return str;
892a6ffc
JA		 3713
3714 sprintf(buf, "which %s > /dev/null", BC_APP);
3715 if (system(buf)) {
3716 log_err("fio: bc is needed for performing math\n");
892a6ffc
JA		 3717 return NULL;
3718 }
3719
d0c814ec 3720 sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
892a6ffc 3721 f = popen(buf, "r");
3c3ed070 3722 if (!f)
892a6ffc 3723 return NULL;
892a6ffc 3724
d0c814ec 3725 ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
1d824f37
JA		 3726 if (ret <= 0) {
3727 pclose(f);
892a6ffc 3728 return NULL;
1d824f37 3729 }
892a6ffc 3730
892a6ffc 3731 pclose(f);
d0c814ec
SL		 3732 buf[(tmp - str) + ret - 1] = '\0';
3733 memcpy(buf, str, tmp - str);
892a6ffc 3734 free(str);
d0c814ec
SL		 3735 return strdup(buf);
3736}
3737
3738/*
3739 * Return a copy of the input string with substrings of the form ${VARNAME}
3740 * substituted with the value of the environment variable VARNAME. The
3741 * substitution always occurs, even if VARNAME is empty or the corresponding
3742 * environment variable undefined.
3743 */
3744static char *option_dup_subs(const char *opt)
3745{
3746 char out[OPT_LEN_MAX+1];
3747 char in[OPT_LEN_MAX+1];
3748 char *outptr = out;
3749 char *inptr = in;
3750 char *ch1, *ch2, *env;
3751 ssize_t nchr = OPT_LEN_MAX;
3752 size_t envlen;
3753
3754 if (strlen(opt) + 1 > OPT_LEN_MAX) {
3755 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
3756 return NULL;
3757 }
3758
3759 in[OPT_LEN_MAX] = '\0';
3760 strncpy(in, opt, OPT_LEN_MAX);
3761
3762 while (*inptr && nchr > 0) {
3763 if (inptr[0] == '$' && inptr[1] == '{') {
3764 ch2 = strchr(inptr, '}');
3765 if (ch2 && inptr+1 < ch2) {
3766 ch1 = inptr+2;
3767 inptr = ch2+1;
3768 *ch2 = '\0';
3769
3770 env = getenv(ch1);
3771 if (env) {
3772 envlen = strlen(env);
3773 if (envlen <= nchr) {
3774 memcpy(outptr, env, envlen);
3775 outptr += envlen;
3776 nchr -= envlen;
3777 }
3778 }
3779
3780 continue;
3781 }
3782 }
3783
3784 *outptr++ = *inptr++;
3785 --nchr;
3786 }
3787
3788 *outptr = '\0';
3789 return strdup(out);
892a6ffc
JA		 3790}
3791
74929ac2
JA		 3792/*
3793 * Look for reserved variable names and replace them with real values
3794 */
3795static char *fio_keyword_replace(char *opt)
3796{
3797 char *s;
3798 int i;
d0c814ec 3799 int docalc = 0;
74929ac2
JA		 3800
3801 for (i = 0; fio_keywords[i].word != NULL; i++) {
3802 struct fio_keyword *kw = &fio_keywords[i];
3803
3804 while ((s = strstr(opt, kw->word)) != NULL) {
3805 char *new = malloc(strlen(opt) + 1);
3806 char *o_org = opt;
3807 int olen = s - opt;
3808 int len;
3809
3810 /*
3811 * Copy part of the string before the keyword and
3812 * sprintf() the replacement after it.
3813 */
3814 memcpy(new, opt, olen);
3815 len = sprintf(new + olen, "%s", kw->replace);
3816
3817 /*
3818 * If there's more in the original string, copy that
3819 * in too
3820 */
3821 opt += strlen(kw->word) + olen;
3822 if (strlen(opt))
3823 memcpy(new + olen + len, opt, opt - o_org - 1);
3824
3825 /*
3826 * replace opt and free the old opt
3827 */
3828 opt = new;
d0c814ec 3829 free(o_org);
7a958bd5 3830
d0c814ec 3831 docalc = 1;
74929ac2
JA		 3832 }
3833 }
3834
d0c814ec
SL		 3835 /*
3836 * Check for potential math and invoke bc, if possible
3837 */
3838 if (docalc)
3839 opt = bc_calc(opt);
3840
7a958bd5 3841 return opt;
74929ac2
JA		 3842}
3843
d0c814ec
SL		 3844static char **dup_and_sub_options(char **opts, int num_opts)
3845{
3846 int i;
3847 char **opts_copy = malloc(num_opts * sizeof(*opts));
3848 for (i = 0; i < num_opts; i++) {
3849 opts_copy[i] = option_dup_subs(opts[i]);
3850 if (!opts_copy[i])
3851 continue;
3852 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
3853 }
3854 return opts_copy;
3855}
3856
292cc475
JA		 3857int fio_options_parse(struct thread_data *td, char **opts, int num_opts,
3858 int dump_cmdline)
214e1eca 3859{
de890a1e 3860 int i, ret, unknown;
d0c814ec 3861 char **opts_copy;
3b8b7135 3862
9af4a244 3863 sort_options(opts, fio_options, num_opts);
d0c814ec 3864 opts_copy = dup_and_sub_options(opts, num_opts);
3b8b7135 3865
de890a1e
SL		 3866 for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
3867 struct fio_option *o;
9af4a244 3868 int newret = parse_option(opts_copy[i], opts[i], fio_options,
292cc475 3869 &o, td, dump_cmdline);
d0c814ec 3870
de890a1e
SL		 3871 if (opts_copy[i]) {
3872 if (newret && !o) {
3873 unknown++;
3874 continue;
3875 }
d0c814ec 3876 free(opts_copy[i]);
de890a1e
SL		 3877 opts_copy[i] = NULL;
3878 }
3879
3880 ret |= newret;
3881 }
3882
3883 if (unknown) {
3884 ret |= ioengine_load(td);
3885 if (td->eo) {
3886 sort_options(opts_copy, td->io_ops->options, num_opts);
3887 opts = opts_copy;
3888 }
3889 for (i = 0; i < num_opts; i++) {
3890 struct fio_option *o = NULL;
3891 int newret = 1;
3892 if (!opts_copy[i])
3893 continue;
3894
3895 if (td->eo)
3896 newret = parse_option(opts_copy[i], opts[i],
3897 td->io_ops->options, &o,
292cc475 3898 td->eo, dump_cmdline);
de890a1e
SL		 3899
3900 ret |= newret;
3901 if (!o)
3902 log_err("Bad option <%s>\n", opts[i]);
3903
3904 free(opts_copy[i]);
3905 opts_copy[i] = NULL;
3906 }
74929ac2 3907 }
3b8b7135 3908
d0c814ec 3909 free(opts_copy);
3b8b7135 3910 return ret;
214e1eca
JA		 3911}
3912
3913int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
3914{
9af4a244 3915 return parse_cmd_option(opt, val, fio_options, td);
214e1eca
JA		 3916}
3917
de890a1e
SL		 3918int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
3919 char *val)
3920{
8a96c80e 3921 return parse_cmd_option(opt, val, td->io_ops->options, td->eo);
de890a1e
SL		 3922}
3923
214e1eca
JA		 3924void fio_fill_default_options(struct thread_data *td)
3925{
cb1402d6 3926 td->o.magic = OPT_MAGIC;
9af4a244 3927 fill_default_options(td, fio_options);
214e1eca
JA		 3928}
3929
3930int fio_show_option_help(const char *opt)
3931{
9af4a244 3932 return show_cmd_help(fio_options, opt);
214e1eca 3933}
d23bb327 3934
de890a1e 3935void options_mem_dupe(void *data, struct fio_option *options)
d23bb327 3936{
de890a1e 3937 struct fio_option *o;
d23bb327 3938 char **ptr;
d23bb327 3939
de890a1e
SL		 3940 for (o = &options[0]; o->name; o++) {
3941 if (o->type != FIO_OPT_STR_STORE)
d23bb327
JA		 3942 continue;
3943
f0fdbcaf 3944 ptr = td_var(data, o, o->off1);
7e356b2d
JA		 3945 if (*ptr)
3946 *ptr = strdup(*ptr);
d23bb327
JA		 3947 }
3948}
3949
de890a1e
SL		 3950/*
3951 * dupe FIO_OPT_STR_STORE options
3952 */
3953void fio_options_mem_dupe(struct thread_data *td)
3954{
9af4a244 3955 options_mem_dupe(&td->o, fio_options);
1647f592
JA		 3956
3957 if (td->eo && td->io_ops) {
de890a1e 3958 void *oldeo = td->eo;
1647f592 3959
de890a1e
SL		 3960 td->eo = malloc(td->io_ops->option_struct_size);
3961 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
3962 options_mem_dupe(td->eo, td->io_ops->options);
3963 }
3964}
3965
d6978a32
JA		 3966unsigned int fio_get_kb_base(void *data)
3967{
83ea422a 3968 struct thread_options *o = data;
d6978a32
JA		 3969 unsigned int kb_base = 0;
3970
cb1402d6
JA		 3971 /*
3972 * This is a hack... For private options, *data is not holding
3973 * a pointer to the thread_options, but to private data. This means
3974 * we can't safely dereference it, but magic is first so mem wise
3975 * it is valid. But this also means that if the job first sets
3976 * kb_base and expects that to be honored by private options,
3977 * it will be disappointed. We will return the global default
3978 * for this.
3979 */
3980 if (o && o->magic == OPT_MAGIC)
83ea422a 3981 kb_base = o->kb_base;
d6978a32
JA		 3982 if (!kb_base)
3983 kb_base = 1024;
3984
3985 return kb_base;
3986}
9f988e2e 3987
07b3232d 3988int add_option(struct fio_option *o)
9f988e2e 3989{
07b3232d
JA		 3990 struct fio_option *__o;
3991 int opt_index = 0;
3992
9af4a244 3993 __o = fio_options;
07b3232d
JA		 3994 while (__o->name) {
3995 opt_index++;
3996 __o++;
3997 }
3998
7b504edd
JA		 3999 if (opt_index + 1 == FIO_MAX_OPTS) {
4000 log_err("fio: FIO_MAX_OPTS is too small\n");
4001 return 1;
4002 }
4003
9af4a244 4004 memcpy(&fio_options[opt_index], o, sizeof(*o));
7b504edd 4005 fio_options[opt_index + 1].name = NULL;
07b3232d 4006 return 0;
9f988e2e 4007}
e2de69da 4008
07b3232d 4009void invalidate_profile_options(const char *prof_name)
e2de69da 4010{
07b3232d 4011 struct fio_option *o;
e2de69da 4012
9af4a244 4013 o = fio_options;
07b3232d
JA		 4014 while (o->name) {
4015 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
4016 o->type = FIO_OPT_INVALID;
4017 o->prof_name = NULL;
4018 }
4019 o++;
e2de69da
JA		 4020 }
4021}
f5b6bb85
JA		 4022
4023void add_opt_posval(const char *optname, const char *ival, const char *help)
4024{
4025 struct fio_option *o;
4026 unsigned int i;
4027
9af4a244 4028 o = find_option(fio_options, optname);
f5b6bb85
JA		 4029 if (!o)
4030 return;
4031
4032 for (i = 0; i < PARSE_MAX_VP; i++) {
4033 if (o->posval[i].ival)
4034 continue;
4035
4036 o->posval[i].ival = ival;
4037 o->posval[i].help = help;
4038 break;
4039 }
4040}
4041
4042void del_opt_posval(const char *optname, const char *ival)
4043{
4044 struct fio_option *o;
4045 unsigned int i;
4046
9af4a244 4047 o = find_option(fio_options, optname);
f5b6bb85
JA		 4048 if (!o)
4049 return;
4050
4051 for (i = 0; i < PARSE_MAX_VP; i++) {
4052 if (!o->posval[i].ival)
4053 continue;
4054 if (strcmp(o->posval[i].ival, ival))
4055 continue;
4056
4057 o->posval[i].ival = NULL;
4058 o->posval[i].help = NULL;
4059 }
4060}
7e356b2d
JA		 4061
4062void fio_options_free(struct thread_data *td)
4063{
9af4a244 4064 options_free(fio_options, td);
de890a1e
SL		 4065 if (td->eo && td->io_ops && td->io_ops->options) {
4066 options_free(td->io_ops->options, td->eo);
4067 free(td->eo);
4068 td->eo = NULL;
4069 }
7e356b2d 4070}
c504ee55
JA		 4071
4072struct fio_option *fio_option_find(const char *name)
4073{
4074 return find_option(fio_options, name);
4075}
4076
fio - Flexible IO Tester