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Fio 2.0.12.1
[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
40 switch(a) {
41 case '0'...'9':
42 base = '0';
43 break;
44 case 'A'...'F':
45 base = 'A' - 10;
46 break;
47 case 'a'...'f':
48 base = 'a' - 10;
49 break;
50 default:
51 base = 0;
52 }
53 return (a - base);
54}
55
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
720e84ad 64static int bssplit_ddir(struct thread_data *td, 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
720e84ad
JA		 72 td->o.bssplit_nr[ddir] = 4;
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 */
720e84ad
JA		 87 if (i == td->o.bssplit_nr[ddir]) {
88 td->o.bssplit_nr[ddir] <<= 1;
89 bssplit = realloc(bssplit, td->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
6925dd35 105 if (str_to_decimal(fname, &val, 1, td)) {
564ca972
JA		 106 log_err("fio: bssplit conversion failed\n");
107 free(td->o.bssplit);
108 return 1;
109 }
110
111 if (val > max_bs)
112 max_bs = val;
113 if (val < min_bs)
114 min_bs = val;
115
720e84ad
JA		 116 bssplit[i].bs = val;
117 bssplit[i].perc = perc;
564ca972
JA		 118 i++;
119 }
120
720e84ad 121 td->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;
720e84ad
JA		 127 for (i = 0; i < td->o.bssplit_nr[ddir]; i++) {
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) {
720e84ad
JA		 146 for (i = 0; i < td->o.bssplit_nr[ddir]; i++) {
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
720e84ad
JA		 154 td->o.min_bs[ddir] = min_bs;
155 td->o.max_bs[ddir] = max_bs;
564ca972
JA		 156
157 /*
158 * now sort based on percentages, for ease of lookup
159 */
720e84ad
JA		 160 qsort(bssplit, td->o.bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
161 td->o.bssplit[ddir] = bssplit;
162 return 0;
163
164}
165
166static int str_bssplit_cb(void *data, const char *input)
167{
168 struct thread_data *td = data;
6eaf09d6 169 char *str, *p, *odir, *ddir;
720e84ad
JA		 170 int ret = 0;
171
172 p = str = strdup(input);
173
174 strip_blank_front(&str);
175 strip_blank_end(str);
176
177 odir = strchr(str, ',');
178 if (odir) {
6eaf09d6
SL		 179 ddir = strchr(odir + 1, ',');
180 if (ddir) {
181 ret = bssplit_ddir(td, DDIR_TRIM, ddir + 1);
182 if (!ret)
183 *ddir = '\0';
184 } else {
185 char *op;
186
187 op = strdup(odir + 1);
188 ret = bssplit_ddir(td, DDIR_TRIM, op);
189
190 free(op);
191 }
192 if (!ret)
193 ret = bssplit_ddir(td, DDIR_WRITE, odir + 1);
720e84ad
JA		 194 if (!ret) {
195 *odir = '\0';
196 ret = bssplit_ddir(td, DDIR_READ, str);
197 }
198 } else {
199 char *op;
200
201 op = strdup(str);
6eaf09d6
SL		 202 ret = bssplit_ddir(td, DDIR_WRITE, op);
203 free(op);
720e84ad 204
6eaf09d6
SL		 205 if (!ret) {
206 op = strdup(str);
207 ret = bssplit_ddir(td, DDIR_TRIM, op);
208 free(op);
209 }
720e84ad 210 ret = bssplit_ddir(td, DDIR_READ, str);
720e84ad 211 }
564ca972
JA		 212
213 free(p);
720e84ad 214 return ret;
564ca972
JA		 215}
216
8b28bd41
DM		 217static int str2error(char *str)
218{
219 const char * err[] = {"EPERM", "ENOENT", "ESRCH", "EINTR", "EIO",
220 "ENXIO", "E2BIG", "ENOEXEC", "EBADF",
221 "ECHILD", "EAGAIN", "ENOMEM", "EACCES",
222 "EFAULT", "ENOTBLK", "EBUSY", "EEXIST",
223 "EXDEV", "ENODEV", "ENOTDIR", "EISDIR",
224 "EINVAL", "ENFILE", "EMFILE", "ENOTTY",
225 "ETXTBSY","EFBIG", "ENOSPC", "ESPIPE",
226 "EROFS","EMLINK", "EPIPE", "EDOM", "ERANGE"};
227 int i = 0, num = sizeof(err) / sizeof(void *);
228
229 while( i < num) {
230 if (!strcmp(err[i], str))
231 return i + 1;
232 i++;
233 }
234 return 0;
235}
236
237static int ignore_error_type(struct thread_data *td, int etype, char *str)
238{
239 unsigned int i;
240 int *error;
241 char *fname;
242
243 if (etype >= ERROR_TYPE_CNT) {
244 log_err("Illegal error type\n");
245 return 1;
246 }
247
248 td->o.ignore_error_nr[etype] = 4;
249 error = malloc(4 * sizeof(struct bssplit));
250
251 i = 0;
252 while ((fname = strsep(&str, ":")) != NULL) {
253
254 if (!strlen(fname))
255 break;
256
257 /*
258 * grow struct buffer, if needed
259 */
260 if (i == td->o.ignore_error_nr[etype]) {
261 td->o.ignore_error_nr[etype] <<= 1;
262 error = realloc(error, td->o.ignore_error_nr[etype]
263 * sizeof(int));
264 }
265 if (fname[0] == 'E') {
266 error[i] = str2error(fname);
267 } else {
268 error[i] = atoi(fname);
269 if (error[i] < 0)
270 error[i] = error[i];
271 }
272 if (!error[i]) {
273 log_err("Unknown error %s, please use number value \n",
274 fname);
275 return 1;
276 }
277 i++;
278 }
279 if (i) {
280 td->o.continue_on_error |= 1 << etype;
281 td->o.ignore_error_nr[etype] = i;
282 td->o.ignore_error[etype] = error;
283 }
284 return 0;
285
286}
287
288static int str_ignore_error_cb(void *data, const char *input)
289{
290 struct thread_data *td = data;
291 char *str, *p, *n;
292 int type = 0, ret = 1;
293 p = str = strdup(input);
294
295 strip_blank_front(&str);
296 strip_blank_end(str);
297
298 while (p) {
299 n = strchr(p, ',');
300 if (n)
301 *n++ = '\0';
302 ret = ignore_error_type(td, type, p);
303 if (ret)
304 break;
305 p = n;
306 type++;
307 }
308 free(str);
309 return ret;
310}
311
211097b2
JA		 312static int str_rw_cb(void *data, const char *str)
313{
314 struct thread_data *td = data;
315 char *nr = get_opt_postfix(str);
316
5736c10d 317 td->o.ddir_seq_nr = 1;
059b0802
JA		 318 td->o.ddir_seq_add = 0;
319
320 if (!nr)
321 return 0;
322
323 if (td_random(td))
5736c10d 324 td->o.ddir_seq_nr = atoi(nr);
059b0802
JA		 325 else {
326 long long val;
327
6925dd35 328 if (str_to_decimal(nr, &val, 1, td)) {
059b0802
JA		 329 log_err("fio: rw postfix parsing failed\n");
330 free(nr);
331 return 1;
332 }
333
334 td->o.ddir_seq_add = val;
182ec6ee 335 }
211097b2 336
059b0802 337 free(nr);
211097b2
JA		 338 return 0;
339}
340
214e1eca
JA		 341static int str_mem_cb(void *data, const char *mem)
342{
343 struct thread_data *td = data;
344
2dc1bbeb 345 if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP) {
214e1eca 346 td->mmapfile = get_opt_postfix(mem);
2dc1bbeb 347 if (td->o.mem_type == MEM_MMAPHUGE && !td->mmapfile) {
214e1eca
JA		 348 log_err("fio: mmaphuge:/path/to/file\n");
349 return 1;
350 }
351 }
352
353 return 0;
354}
355
5d7c5d34
JA		 356static int str_verify_cb(void *data, const char *mem)
357{
358 struct thread_data *td = data;
359
e3aaafc4
JA		 360 if (td->o.verify == VERIFY_CRC32C_INTEL ||
361 td->o.verify == VERIFY_CRC32C) {
362 crc32c_intel_probe();
5d7c5d34
JA		 363 }
364
365 return 0;
366}
367
c223da83
JA		 368static int fio_clock_source_cb(void *data, const char *str)
369{
370 struct thread_data *td = data;
371
372 fio_clock_source = td->o.clocksource;
fa80feae 373 fio_clock_source_set = 1;
01423eae 374 fio_clock_init();
c223da83
JA		 375 return 0;
376}
377
85bc833b 378static int str_lockmem_cb(void fio_unused *data, unsigned long long *val)
214e1eca
JA		 379{
380 mlock_size = *val;
381 return 0;
382}
383
85bc833b 384static int str_rwmix_read_cb(void *data, unsigned long long *val)
cb499fc4
JA		 385{
386 struct thread_data *td = data;
387
388 td->o.rwmix[DDIR_READ] = *val;
389 td->o.rwmix[DDIR_WRITE] = 100 - *val;
390 return 0;
391}
392
85bc833b 393static int str_rwmix_write_cb(void *data, unsigned long long *val)
cb499fc4
JA		 394{
395 struct thread_data *td = data;
396
397 td->o.rwmix[DDIR_WRITE] = *val;
398 td->o.rwmix[DDIR_READ] = 100 - *val;
399 return 0;
400}
401
214e1eca 402#ifdef FIO_HAVE_IOPRIO
85bc833b 403static int str_prioclass_cb(void *data, unsigned long long *val)
214e1eca
JA		 404{
405 struct thread_data *td = data;
6cefbe33
JA		 406 unsigned short mask;
407
408 /*
409 * mask off old class bits, str_prio_cb() may have set a default class
410 */
411 mask = (1 << IOPRIO_CLASS_SHIFT) - 1;
412 td->ioprio &= mask;
214e1eca
JA		 413
414 td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
ac684785 415 td->ioprio_set = 1;
214e1eca
JA		 416 return 0;
417}
418
85bc833b 419static int str_prio_cb(void *data, unsigned long long *val)
214e1eca
JA		 420{
421 struct thread_data *td = data;
422
423 td->ioprio |= *val;
6cefbe33
JA		 424
425 /*
426 * If no class is set, assume BE
427 */
428 if ((td->ioprio >> IOPRIO_CLASS_SHIFT) == 0)
429 td->ioprio |= IOPRIO_CLASS_BE << IOPRIO_CLASS_SHIFT;
430
ac684785 431 td->ioprio_set = 1;
214e1eca
JA		 432 return 0;
433}
434#endif
435
436static int str_exitall_cb(void)
437{
438 exitall_on_terminate = 1;
439 return 0;
440}
441
214e1eca 442#ifdef FIO_HAVE_CPU_AFFINITY
85bc833b 443static int str_cpumask_cb(void *data, unsigned long long *val)
d2e268b0
JA		 444{
445 struct thread_data *td = data;
214e1eca 446 unsigned int i;
b03daafb 447 long max_cpu;
d2ce18b5
JA		 448 int ret;
449
450 ret = fio_cpuset_init(&td->o.cpumask);
451 if (ret < 0) {
452 log_err("fio: cpuset_init failed\n");
453 td_verror(td, ret, "fio_cpuset_init");
454 return 1;
455 }
214e1eca 456
c00a2289 457 max_cpu = cpus_online();
214e1eca 458
62a7273d
JA		 459 for (i = 0; i < sizeof(int) * 8; i++) {
460 if ((1 << i) & *val) {
b03daafb
JA		 461 if (i > max_cpu) {
462 log_err("fio: CPU %d too large (max=%ld)\n", i,
463 max_cpu);
464 return 1;
465 }
62a7273d 466 dprint(FD_PARSE, "set cpu allowed %d\n", i);
6d459ee7 467 fio_cpu_set(&td->o.cpumask, i);
62a7273d
JA		 468 }
469 }
d2e268b0
JA		 470
471 td->o.cpumask_set = 1;
472 return 0;
214e1eca
JA		 473}
474
e8462bd8
JA		 475static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
476 const char *input)
214e1eca 477{
d2e268b0 478 char *cpu, *str, *p;
b03daafb 479 long max_cpu;
19608d6c 480 int ret = 0;
d2e268b0 481
e8462bd8 482 ret = fio_cpuset_init(mask);
d2ce18b5
JA		 483 if (ret < 0) {
484 log_err("fio: cpuset_init failed\n");
485 td_verror(td, ret, "fio_cpuset_init");
486 return 1;
487 }
d2e268b0
JA		 488
489 p = str = strdup(input);
214e1eca 490
d2e268b0
JA		 491 strip_blank_front(&str);
492 strip_blank_end(str);
493
c00a2289 494 max_cpu = cpus_online();
b03daafb 495
d2e268b0 496 while ((cpu = strsep(&str, ",")) != NULL) {
62a7273d
JA		 497 char *str2, *cpu2;
498 int icpu, icpu2;
499
d2e268b0
JA		 500 if (!strlen(cpu))
501 break;
62a7273d
JA		 502
503 str2 = cpu;
504 icpu2 = -1;
505 while ((cpu2 = strsep(&str2, "-")) != NULL) {
506 if (!strlen(cpu2))
507 break;
508
509 icpu2 = atoi(cpu2);
510 }
511
512 icpu = atoi(cpu);
513 if (icpu2 == -1)
514 icpu2 = icpu;
515 while (icpu <= icpu2) {
6d459ee7 516 if (icpu >= FIO_MAX_CPUS) {
19608d6c 517 log_err("fio: your OS only supports up to"
6d459ee7 518 " %d CPUs\n", (int) FIO_MAX_CPUS);
19608d6c
JA		 519 ret = 1;
520 break;
521 }
b03daafb
JA		 522 if (icpu > max_cpu) {
523 log_err("fio: CPU %d too large (max=%ld)\n",
524 icpu, max_cpu);
525 ret = 1;
526 break;
527 }
0b9d69ec 528
62a7273d 529 dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
e8462bd8 530 fio_cpu_set(mask, icpu);
62a7273d
JA		 531 icpu++;
532 }
19608d6c
JA		 533 if (ret)
534 break;
d2e268b0
JA		 535 }
536
537 free(p);
19608d6c
JA		 538 if (!ret)
539 td->o.cpumask_set = 1;
540 return ret;
214e1eca 541}
e8462bd8
JA		 542
543static int str_cpus_allowed_cb(void *data, const char *input)
544{
545 struct thread_data *td = data;
546 int ret;
547
548 ret = set_cpus_allowed(td, &td->o.cpumask, input);
549 if (!ret)
550 td->o.cpumask_set = 1;
551
552 return ret;
553}
554
555static int str_verify_cpus_allowed_cb(void *data, const char *input)
556{
557 struct thread_data *td = data;
558 int ret;
559
560 ret = set_cpus_allowed(td, &td->o.verify_cpumask, input);
561 if (!ret)
562 td->o.verify_cpumask_set = 1;
563
564 return ret;
565}
d2e268b0 566#endif
214e1eca 567
d0b937ed
YR		 568#ifdef FIO_HAVE_LIBNUMA
569static int str_numa_cpunodes_cb(void *data, char *input)
570{
571 struct thread_data *td = data;
572
573 /* numa_parse_nodestring() parses a character string list
574 * of nodes into a bit mask. The bit mask is allocated by
575 * numa_allocate_nodemask(), so it should be freed by
576 * numa_free_nodemask().
577 */
578 td->o.numa_cpunodesmask = numa_parse_nodestring(input);
579 if (td->o.numa_cpunodesmask == NULL) {
580 log_err("fio: numa_parse_nodestring failed\n");
581 td_verror(td, 1, "str_numa_cpunodes_cb");
582 return 1;
583 }
584
585 td->o.numa_cpumask_set = 1;
586 return 0;
587}
588
589static int str_numa_mpol_cb(void *data, char *input)
590{
591 struct thread_data *td = data;
592 const char * const policy_types[] =
593 { "default", "prefer", "bind", "interleave", "local" };
594 int i;
595
596 char *nodelist = strchr(input, ':');
597 if (nodelist) {
598 /* NUL-terminate mode */
599 *nodelist++ = '\0';
600 }
601
602 for (i = 0; i <= MPOL_LOCAL; i++) {
603 if (!strcmp(input, policy_types[i])) {
604 td->o.numa_mem_mode = i;
605 break;
606 }
607 }
608 if (i > MPOL_LOCAL) {
609 log_err("fio: memory policy should be: default, prefer, bind, interleave, local\n");
610 goto out;
611 }
612
613 switch (td->o.numa_mem_mode) {
614 case MPOL_PREFERRED:
615 /*
616 * Insist on a nodelist of one node only
617 */
618 if (nodelist) {
619 char *rest = nodelist;
620 while (isdigit(*rest))
621 rest++;
622 if (*rest) {
623 log_err("fio: one node only for \'prefer\'\n");
624 goto out;
625 }
626 } else {
627 log_err("fio: one node is needed for \'prefer\'\n");
628 goto out;
629 }
630 break;
631 case MPOL_INTERLEAVE:
632 /*
633 * Default to online nodes with memory if no nodelist
634 */
635 if (!nodelist)
636 nodelist = strdup("all");
637 break;
638 case MPOL_LOCAL:
639 case MPOL_DEFAULT:
640 /*
641 * Don't allow a nodelist
642 */
643 if (nodelist) {
644 log_err("fio: NO nodelist for \'local\'\n");
645 goto out;
646 }
647 break;
648 case MPOL_BIND:
649 /*
650 * Insist on a nodelist
651 */
652 if (!nodelist) {
653 log_err("fio: a nodelist is needed for \'bind\'\n");
654 goto out;
655 }
656 break;
657 }
658
659
660 /* numa_parse_nodestring() parses a character string list
661 * of nodes into a bit mask. The bit mask is allocated by
662 * numa_allocate_nodemask(), so it should be freed by
663 * numa_free_nodemask().
664 */
665 switch (td->o.numa_mem_mode) {
666 case MPOL_PREFERRED:
667 td->o.numa_mem_prefer_node = atoi(nodelist);
668 break;
669 case MPOL_INTERLEAVE:
670 case MPOL_BIND:
671 td->o.numa_memnodesmask = numa_parse_nodestring(nodelist);
672 if (td->o.numa_memnodesmask == NULL) {
673 log_err("fio: numa_parse_nodestring failed\n");
674 td_verror(td, 1, "str_numa_memnodes_cb");
675 return 1;
676 }
677 break;
678 case MPOL_LOCAL:
679 case MPOL_DEFAULT:
680 default:
681 break;
682 }
683
684 td->o.numa_memmask_set = 1;
685 return 0;
686
687out:
688 return 1;
689}
690#endif
691
0d29de83
JA		 692#ifdef FIO_HAVE_TRIM
693static int str_verify_trim_cb(void *data, unsigned long long *val)
694{
695 struct thread_data *td = data;
696
697 td->o.trim_percentage = *val;
698 return 0;
699}
700#endif
701
214e1eca
JA		 702static int str_fst_cb(void *data, const char *str)
703{
704 struct thread_data *td = data;
705 char *nr = get_opt_postfix(str);
706
707 td->file_service_nr = 1;
182ec6ee 708 if (nr) {
214e1eca 709 td->file_service_nr = atoi(nr);
182ec6ee
JA		 710 free(nr);
711 }
214e1eca
JA		 712
713 return 0;
714}
715
3ae06371 716#ifdef FIO_HAVE_SYNC_FILE_RANGE
44f29692
JA		 717static int str_sfr_cb(void *data, const char *str)
718{
719 struct thread_data *td = data;
720 char *nr = get_opt_postfix(str);
721
722 td->sync_file_range_nr = 1;
723 if (nr) {
724 td->sync_file_range_nr = atoi(nr);
725 free(nr);
726 }
727
728 return 0;
729}
3ae06371 730#endif
44f29692 731
e25839d4
JA		 732static int str_random_distribution_cb(void *data, const char *str)
733{
734 struct thread_data *td = data;
735 double val;
736 char *nr;
737
925fee33
JA		 738 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
739 val = 1.1;
740 else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
741 val = 0.2;
742 else
e25839d4
JA		 743 return 0;
744
745 nr = get_opt_postfix(str);
925fee33 746 if (nr && !str_to_float(nr, &val)) {
e25839d4
JA		 747 log_err("fio: random postfix parsing failed\n");
748 free(nr);
749 return 1;
750 }
751
078189c1
JA		 752 free(nr);
753
18ded917
JA		 754 if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
755 if (val == 1.00) {
756 log_err("fio: zipf theta must different than 1.0\n");
757 return 1;
758 }
925fee33 759 td->o.zipf_theta = val;
18ded917 760 } else {
078189c1
JA		 761 if (val <= 0.00 || val >= 1.00) {
762 log_err("fio: pareto input out of range (0 < input < 1.0)\n");
763 return 1;
764 }
925fee33 765 td->o.pareto_h = val;
078189c1 766 }
925fee33 767
e25839d4
JA		 768 return 0;
769}
770
921c766f
JA		 771static int check_dir(struct thread_data *td, char *fname)
772{
3f0ca9b9 773#if 0
921c766f 774 char file[PATH_MAX], *dir;
bc838919 775 int elen = 0;
921c766f 776
bc838919
JA		 777 if (td->o.directory) {
778 strcpy(file, td->o.directory);
fcef0b35 779 strcat(file, "/");
bc838919
JA		 780 elen = strlen(file);
781 }
782
fcef0b35 783 sprintf(file + elen, "%s", fname);
921c766f
JA		 784 dir = dirname(file);
785
fcef0b35
JA		 786 {
787 struct stat sb;
788 /*
789 * We can't do this on FIO_DISKLESSIO engines. The engine isn't loaded
790 * yet, so we can't do this check right here...
791 */
921c766f
JA		 792 if (lstat(dir, &sb) < 0) {
793 int ret = errno;
794
795 log_err("fio: %s is not a directory\n", dir);
796 td_verror(td, ret, "lstat");
797 return 1;
798 }
799
800 if (!S_ISDIR(sb.st_mode)) {
801 log_err("fio: %s is not a directory\n", dir);
802 return 1;
803 }
fcef0b35
JA		 804 }
805#endif
921c766f
JA		 806
807 return 0;
808}
809
8e827d35
JA		 810/*
811 * Return next file in the string. Files are separated with ':'. If the ':'
812 * is escaped with a '\', then that ':' is part of the filename and does not
813 * indicate a new file.
814 */
815static char *get_next_file_name(char **ptr)
816{
817 char *str = *ptr;
818 char *p, *start;
819
820 if (!str || !strlen(str))
821 return NULL;
822
823 start = str;
824 do {
825 /*
826 * No colon, we are done
827 */
828 p = strchr(str, ':');
829 if (!p) {
830 *ptr = NULL;
831 break;
832 }
833
834 /*
835 * We got a colon, but it's the first character. Skip and
836 * continue
837 */
838 if (p == start) {
839 str = ++start;
840 continue;
841 }
842
843 if (*(p - 1) != '\\') {
844 *p = '\0';
845 *ptr = p + 1;
846 break;
847 }
848
849 memmove(p - 1, p, strlen(p) + 1);
850 str = p;
851 } while (1);
852
853 return start;
854}
855
214e1eca
JA		 856static int str_filename_cb(void *data, const char *input)
857{
858 struct thread_data *td = data;
859 char *fname, *str, *p;
860
861 p = str = strdup(input);
862
863 strip_blank_front(&str);
864 strip_blank_end(str);
865
866 if (!td->files_index)
2dc1bbeb 867 td->o.nr_files = 0;
214e1eca 868
8e827d35 869 while ((fname = get_next_file_name(&str)) != NULL) {
214e1eca
JA		 870 if (!strlen(fname))
871 break;
921c766f
JA		 872 if (check_dir(td, fname)) {
873 free(p);
874 return 1;
875 }
214e1eca 876 add_file(td, fname);
2dc1bbeb 877 td->o.nr_files++;
214e1eca
JA		 878 }
879
880 free(p);
881 return 0;
882}
883
884static int str_directory_cb(void *data, const char fio_unused *str)
885{
886 struct thread_data *td = data;
887 struct stat sb;
888
2dc1bbeb 889 if (lstat(td->o.directory, &sb) < 0) {
921c766f
JA		 890 int ret = errno;
891
2dc1bbeb 892 log_err("fio: %s is not a directory\n", td->o.directory);
921c766f 893 td_verror(td, ret, "lstat");
214e1eca
JA		 894 return 1;
895 }
896 if (!S_ISDIR(sb.st_mode)) {
2dc1bbeb 897 log_err("fio: %s is not a directory\n", td->o.directory);
214e1eca
JA		 898 return 1;
899 }
900
901 return 0;
902}
903
904static int str_opendir_cb(void *data, const char fio_unused *str)
905{
906 struct thread_data *td = data;
907
908 if (!td->files_index)
2dc1bbeb 909 td->o.nr_files = 0;
214e1eca 910
2dc1bbeb 911 return add_dir_files(td, td->o.opendir);
214e1eca
JA		 912}
913
85bc833b 914static int str_verify_offset_cb(void *data, unsigned long long *off)
546a9142
SL		 915{
916 struct thread_data *td = data;
a59e170d 917
546a9142 918 if (*off && *off < sizeof(struct verify_header)) {
a59e170d 919 log_err("fio: verify_offset too small\n");
546a9142
SL		 920 return 1;
921 }
a59e170d
JA		 922
923 td->o.verify_offset = *off;
546a9142
SL		 924 return 0;
925}
926
0e92f873 927static int str_verify_pattern_cb(void *data, const char *input)
90059d65
JA		 928{
929 struct thread_data *td = data;
0e92f873
RR		 930 long off;
931 int i = 0, j = 0, len, k, base = 10;
932 char* loc1, * loc2;
933
934 loc1 = strstr(input, "0x");
935 loc2 = strstr(input, "0X");
936 if (loc1 || loc2)
937 base = 16;
938 off = strtol(input, NULL, base);
939 if (off != LONG_MAX || errno != ERANGE) {
940 while (off) {
941 td->o.verify_pattern[i] = off & 0xff;
942 off >>= 8;
943 i++;
944 }
945 } else {
946 len = strlen(input);
947 k = len - 1;
948 if (base == 16) {
949 if (loc1)
950 j = loc1 - input + 2;
951 else
952 j = loc2 - input + 2;
953 } else
954 return 1;
955 if (len - j < MAX_PATTERN_SIZE * 2) {
956 while (k >= j) {
957 off = converthexchartoint(input[k--]);
958 if (k >= j)
959 off += (converthexchartoint(input[k--])
960 * 16);
961 td->o.verify_pattern[i++] = (char) off;
962 }
963 }
964 }
efcd9dcc
SL		 965
966 /*
967 * Fill the pattern all the way to the end. This greatly reduces
968 * the number of memcpy's we have to do when verifying the IO.
969 */
970 while (i > 1 && i * 2 <= MAX_PATTERN_SIZE) {
971 memcpy(&td->o.verify_pattern[i], &td->o.verify_pattern[0], i);
972 i *= 2;
973 }
9a2a86d0
SL		 974 if (i == 1) {
975 /*
976 * The code in verify_io_u_pattern assumes a single byte pattern
977 * fills the whole verify pattern buffer.
978 */
979 memset(td->o.verify_pattern, td->o.verify_pattern[0],
980 MAX_PATTERN_SIZE);
981 }
efcd9dcc 982
0e92f873 983 td->o.verify_pattern_bytes = i;
efcd9dcc 984
92bf48d5
JA		 985 /*
986 * VERIFY_META could already be set
987 */
988 if (td->o.verify == VERIFY_NONE)
989 td->o.verify = VERIFY_PATTERN;
efcd9dcc 990
90059d65
JA		 991 return 0;
992}
214e1eca 993
4d4e80f2
JA		 994static int str_lockfile_cb(void *data, const char *str)
995{
996 struct thread_data *td = data;
997 char *nr = get_opt_postfix(str);
998
999 td->o.lockfile_batch = 1;
182ec6ee 1000 if (nr) {
4d4e80f2 1001 td->o.lockfile_batch = atoi(nr);
182ec6ee
JA		 1002 free(nr);
1003 }
4d4e80f2
JA		 1004
1005 return 0;
1006}
1007
e3cedca7
JA		 1008static int str_write_bw_log_cb(void *data, const char *str)
1009{
1010 struct thread_data *td = data;
1011
1012 if (str)
1013 td->o.bw_log_file = strdup(str);
1014
1015 td->o.write_bw_log = 1;
1016 return 0;
1017}
1018
1019static int str_write_lat_log_cb(void *data, const char *str)
1020{
1021 struct thread_data *td = data;
1022
1023 if (str)
1024 td->o.lat_log_file = strdup(str);
1025
1026 td->o.write_lat_log = 1;
1027 return 0;
1028}
1029
c8eeb9df
JA		 1030static int str_write_iops_log_cb(void *data, const char *str)
1031{
1032 struct thread_data *td = data;
1033
1034 if (str)
1035 td->o.iops_log_file = strdup(str);
1036
1037 td->o.write_iops_log = 1;
1038 return 0;
1039}
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
90fef2d1
JA		 1109static int kb_base_verify(struct fio_option *o, void *data)
1110{
1111 struct thread_data *td = data;
1112
1113 if (td->o.kb_base != 1024 && td->o.kb_base != 1000) {
1114 log_err("fio: kb_base set to nonsensical value: %u\n",
1115 td->o.kb_base);
1116 return 1;
1117 }
1118
1119 return 0;
1120}
1121
214e1eca
JA		 1122/*
1123 * Map of job/command line options
1124 */
07b3232d 1125static struct fio_option options[FIO_MAX_OPTS] = {
214e1eca
JA		 1126 {
1127 .name = "description",
1128 .type = FIO_OPT_STR_STORE,
1129 .off1 = td_var_offset(description),
1130 .help = "Text job description",
1131 },
1132 {
1133 .name = "name",
1134 .type = FIO_OPT_STR_STORE,
1135 .off1 = td_var_offset(name),
1136 .help = "Name of this job",
1137 },
1138 {
1139 .name = "directory",
1140 .type = FIO_OPT_STR_STORE,
1141 .off1 = td_var_offset(directory),
1142 .cb = str_directory_cb,
1143 .help = "Directory to store files in",
1144 },
1145 {
1146 .name = "filename",
1147 .type = FIO_OPT_STR_STORE,
1148 .off1 = td_var_offset(filename),
1149 .cb = str_filename_cb,
f0d524b0 1150 .prio = -1, /* must come after "directory" */
214e1eca
JA		 1151 .help = "File(s) to use for the workload",
1152 },
90fef2d1
JA		 1153 {
1154 .name = "kb_base",
1155 .type = FIO_OPT_INT,
1156 .off1 = td_var_offset(kb_base),
90fef2d1 1157 .verify = kb_base_verify,
a639f0bb 1158 .prio = 1,
90fef2d1 1159 .def = "1024",
a639f0bb 1160 .help = "How many bytes per KB for reporting (1000 or 1024)",
90fef2d1 1161 },
29c1349f
JA		 1162 {
1163 .name = "lockfile",
4d4e80f2
JA		 1164 .type = FIO_OPT_STR,
1165 .cb = str_lockfile_cb,
1166 .off1 = td_var_offset(file_lock_mode),
29c1349f
JA		 1167 .help = "Lock file when doing IO to it",
1168 .parent = "filename",
4d4e80f2
JA		 1169 .def = "none",
1170 .posval = {
1171 { .ival = "none",
1172 .oval = FILE_LOCK_NONE,
1173 .help = "No file locking",
1174 },
1175 { .ival = "exclusive",
1176 .oval = FILE_LOCK_EXCLUSIVE,
1177 .help = "Exclusive file lock",
1178 },
1179 {
1180 .ival = "readwrite",
1181 .oval = FILE_LOCK_READWRITE,
1182 .help = "Read vs write lock",
1183 },
1184 },
29c1349f 1185 },
214e1eca
JA		 1186 {
1187 .name = "opendir",
1188 .type = FIO_OPT_STR_STORE,
1189 .off1 = td_var_offset(opendir),
1190 .cb = str_opendir_cb,
1191 .help = "Recursively add files from this directory and down",
1192 },
1193 {
1194 .name = "rw",
d3aad8f2 1195 .alias = "readwrite",
214e1eca 1196 .type = FIO_OPT_STR,
211097b2 1197 .cb = str_rw_cb,
214e1eca
JA		 1198 .off1 = td_var_offset(td_ddir),
1199 .help = "IO direction",
1200 .def = "read",
896cac2a 1201 .verify = rw_verify,
214e1eca
JA		 1202 .posval = {
1203 { .ival = "read",
1204 .oval = TD_DDIR_READ,
1205 .help = "Sequential read",
1206 },
1207 { .ival = "write",
1208 .oval = TD_DDIR_WRITE,
1209 .help = "Sequential write",
1210 },
6eaf09d6
SL		 1211 { .ival = "trim",
1212 .oval = TD_DDIR_TRIM,
1213 .help = "Sequential trim",
1214 },
214e1eca
JA		 1215 { .ival = "randread",
1216 .oval = TD_DDIR_RANDREAD,
1217 .help = "Random read",
1218 },
1219 { .ival = "randwrite",
1220 .oval = TD_DDIR_RANDWRITE,
1221 .help = "Random write",
1222 },
6eaf09d6
SL		 1223 { .ival = "randtrim",
1224 .oval = TD_DDIR_RANDTRIM,
1225 .help = "Random trim",
1226 },
214e1eca
JA		 1227 { .ival = "rw",
1228 .oval = TD_DDIR_RW,
1229 .help = "Sequential read and write mix",
1230 },
10b023db
JA		 1231 { .ival = "readwrite",
1232 .oval = TD_DDIR_RW,
1233 .help = "Sequential read and write mix",
1234 },
214e1eca
JA		 1235 { .ival = "randrw",
1236 .oval = TD_DDIR_RANDRW,
1237 .help = "Random read and write mix"
1238 },
1239 },
1240 },
38dad62d
JA		 1241 {
1242 .name = "rw_sequencer",
1243 .type = FIO_OPT_STR,
1244 .off1 = td_var_offset(rw_seq),
1245 .help = "IO offset generator modifier",
1246 .def = "sequential",
1247 .posval = {
1248 { .ival = "sequential",
1249 .oval = RW_SEQ_SEQ,
1250 .help = "Generate sequential offsets",
1251 },
1252 { .ival = "identical",
1253 .oval = RW_SEQ_IDENT,
1254 .help = "Generate identical offsets",
1255 },
1256 },
1257 },
1258
214e1eca
JA		 1259 {
1260 .name = "ioengine",
1261 .type = FIO_OPT_STR_STORE,
1262 .off1 = td_var_offset(ioengine),
1263 .help = "IO engine to use",
58483fa4 1264 .def = FIO_PREFERRED_ENGINE,
214e1eca
JA		 1265 .posval = {
1266 { .ival = "sync",
1267 .help = "Use read/write",
1268 },
a31041ea 1269 { .ival = "psync",
1270 .help = "Use pread/pwrite",
1271 },
1d2af02a 1272 { .ival = "vsync",
03e20d68 1273 .help = "Use readv/writev",
1d2af02a 1274 },
214e1eca
JA		 1275#ifdef FIO_HAVE_LIBAIO
1276 { .ival = "libaio",
1277 .help = "Linux native asynchronous IO",
1278 },
1279#endif
1280#ifdef FIO_HAVE_POSIXAIO
1281 { .ival = "posixaio",
1282 .help = "POSIX asynchronous IO",
1283 },
417f0068
JA		 1284#endif
1285#ifdef FIO_HAVE_SOLARISAIO
1286 { .ival = "solarisaio",
1287 .help = "Solaris native asynchronous IO",
1288 },
214e1eca 1289#endif
03e20d68
BC		 1290#ifdef FIO_HAVE_WINDOWSAIO
1291 { .ival = "windowsaio",
3be80071 1292 .help = "Windows native asynchronous IO"
de890a1e 1293 },
3be80071 1294#endif
214e1eca 1295 { .ival = "mmap",
03e20d68 1296 .help = "Memory mapped IO"
214e1eca
JA		 1297 },
1298#ifdef FIO_HAVE_SPLICE
1299 { .ival = "splice",
1300 .help = "splice/vmsplice based IO",
1301 },
9cce02e8
JA		 1302 { .ival = "netsplice",
1303 .help = "splice/vmsplice to/from the network",
1304 },
214e1eca
JA		 1305#endif
1306#ifdef FIO_HAVE_SGIO
1307 { .ival = "sg",
1308 .help = "SCSI generic v3 IO",
1309 },
1310#endif
1311 { .ival = "null",
1312 .help = "Testing engine (no data transfer)",
1313 },
1314 { .ival = "net",
1315 .help = "Network IO",
1316 },
1317#ifdef FIO_HAVE_SYSLET
1318 { .ival = "syslet-rw",
1319 .help = "syslet enabled async pread/pwrite IO",
1320 },
1321#endif
1322 { .ival = "cpuio",
03e20d68 1323 .help = "CPU cycle burner engine",
214e1eca 1324 },
b8c82a46
JA		 1325#ifdef FIO_HAVE_GUASI
1326 { .ival = "guasi",
1327 .help = "GUASI IO engine",
1328 },
79a43187
JA		 1329#endif
1330#ifdef FIO_HAVE_BINJECT
1331 { .ival = "binject",
1332 .help = "binject direct inject block engine",
1333 },
21b8aee8 1334#endif
1335#ifdef FIO_HAVE_RDMA
1336 { .ival = "rdma",
1337 .help = "RDMA IO engine",
1338 },
8200b8c7
JA		 1339#endif
1340#ifdef FIO_HAVE_FUSION_AW
1341 { .ival = "fusion-aw-sync",
1342 .help = "Fusion-io atomic write engine",
1343 },
1ecc95ca
JA		 1344#endif
1345#ifdef FIO_HAVE_E4_ENG
1346 { .ival = "e4defrag",
1347 .help = "ext4 defrag engine",
1348 },
1349#endif
1350#ifdef FIO_HAVE_FALLOC_ENG
1351 { .ival = "falloc",
1352 .help = "fallocate() file based engine",
1353 },
b8c82a46 1354#endif
214e1eca
JA		 1355 { .ival = "external",
1356 .help = "Load external engine (append name)",
1357 },
1358 },
1359 },
1360 {
1361 .name = "iodepth",
1362 .type = FIO_OPT_INT,
1363 .off1 = td_var_offset(iodepth),
03e20d68 1364 .help = "Number of IO buffers to keep in flight",
757aff4f 1365 .minval = 1,
214e1eca
JA		 1366 .def = "1",
1367 },
1368 {
1369 .name = "iodepth_batch",
4950421a 1370 .alias = "iodepth_batch_submit",
214e1eca
JA		 1371 .type = FIO_OPT_INT,
1372 .off1 = td_var_offset(iodepth_batch),
d65db441 1373 .help = "Number of IO buffers to submit in one go",
afdf9352 1374 .parent = "iodepth",
a2e6f8ac
JA		 1375 .minval = 1,
1376 .def = "1",
4950421a
JA		 1377 },
1378 {
1379 .name = "iodepth_batch_complete",
1380 .type = FIO_OPT_INT,
1381 .off1 = td_var_offset(iodepth_batch_complete),
d65db441 1382 .help = "Number of IO buffers to retrieve in one go",
4950421a
JA		 1383 .parent = "iodepth",
1384 .minval = 0,
1385 .def = "1",
214e1eca
JA		 1386 },
1387 {
1388 .name = "iodepth_low",
1389 .type = FIO_OPT_INT,
1390 .off1 = td_var_offset(iodepth_low),
1391 .help = "Low water mark for queuing depth",
afdf9352 1392 .parent = "iodepth",
214e1eca
JA		 1393 },
1394 {
1395 .name = "size",
1396 .type = FIO_OPT_STR_VAL,
7bb59102 1397 .cb = str_size_cb,
214e1eca
JA		 1398 .help = "Total size of device or files",
1399 },
aa31f1f1
SL		 1400 {
1401 .name = "fill_device",
74586c1e 1402 .alias = "fill_fs",
aa31f1f1
SL		 1403 .type = FIO_OPT_BOOL,
1404 .off1 = td_var_offset(fill_device),
1405 .help = "Write until an ENOSPC error occurs",
1406 .def = "0",
1407 },
214e1eca
JA		 1408 {
1409 .name = "filesize",
1410 .type = FIO_OPT_STR_VAL,
1411 .off1 = td_var_offset(file_size_low),
1412 .off2 = td_var_offset(file_size_high),
c3edbdba 1413 .minval = 1,
214e1eca
JA		 1414 .help = "Size of individual files",
1415 },
67a1000f
JA		 1416 {
1417 .name = "offset",
1418 .alias = "fileoffset",
1419 .type = FIO_OPT_STR_VAL,
1420 .off1 = td_var_offset(start_offset),
1421 .help = "Start IO from this offset",
1422 .def = "0",
1423 },
2d7cd868
JA		 1424 {
1425 .name = "offset_increment",
1426 .type = FIO_OPT_STR_VAL,
1427 .off1 = td_var_offset(offset_increment),
1428 .help = "What is the increment from one offset to the next",
1429 .parent = "offset",
1430 .def = "0",
1431 },
214e1eca
JA		 1432 {
1433 .name = "bs",
d3aad8f2 1434 .alias = "blocksize",
e01b22b8 1435 .type = FIO_OPT_INT,
214e1eca
JA		 1436 .off1 = td_var_offset(bs[DDIR_READ]),
1437 .off2 = td_var_offset(bs[DDIR_WRITE]),
6eaf09d6 1438 .off3 = td_var_offset(bs[DDIR_TRIM]),
c3edbdba 1439 .minval = 1,
214e1eca
JA		 1440 .help = "Block size unit",
1441 .def = "4k",
67a1000f 1442 .parent = "rw",
214e1eca 1443 },
2b7a01d0
JA		 1444 {
1445 .name = "ba",
1446 .alias = "blockalign",
e01b22b8 1447 .type = FIO_OPT_INT,
2b7a01d0
JA		 1448 .off1 = td_var_offset(ba[DDIR_READ]),
1449 .off2 = td_var_offset(ba[DDIR_WRITE]),
6eaf09d6 1450 .off3 = td_var_offset(ba[DDIR_TRIM]),
2b7a01d0
JA		 1451 .minval = 1,
1452 .help = "IO block offset alignment",
1453 .parent = "rw",
1454 },
214e1eca
JA		 1455 {
1456 .name = "bsrange",
d3aad8f2 1457 .alias = "blocksize_range",
214e1eca
JA		 1458 .type = FIO_OPT_RANGE,
1459 .off1 = td_var_offset(min_bs[DDIR_READ]),
1460 .off2 = td_var_offset(max_bs[DDIR_READ]),
1461 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
1462 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
6eaf09d6
SL		 1463 .off5 = td_var_offset(min_bs[DDIR_TRIM]),
1464 .off6 = td_var_offset(max_bs[DDIR_TRIM]),
c3edbdba 1465 .minval = 1,
214e1eca 1466 .help = "Set block size range (in more detail than bs)",
67a1000f 1467 .parent = "rw",
214e1eca 1468 },
564ca972
JA		 1469 {
1470 .name = "bssplit",
1471 .type = FIO_OPT_STR,
1472 .cb = str_bssplit_cb,
1473 .help = "Set a specific mix of block sizes",
1474 .parent = "rw",
1475 },
214e1eca
JA		 1476 {
1477 .name = "bs_unaligned",
d3aad8f2 1478 .alias = "blocksize_unaligned",
214e1eca
JA		 1479 .type = FIO_OPT_STR_SET,
1480 .off1 = td_var_offset(bs_unaligned),
1481 .help = "Don't sector align IO buffer sizes",
67a1000f 1482 .parent = "rw",
214e1eca
JA		 1483 },
1484 {
1485 .name = "randrepeat",
1486 .type = FIO_OPT_BOOL,
1487 .off1 = td_var_offset(rand_repeatable),
1488 .help = "Use repeatable random IO pattern",
1489 .def = "1",
67a1000f 1490 .parent = "rw",
214e1eca 1491 },
2615cc4b
JA		 1492 {
1493 .name = "use_os_rand",
1494 .type = FIO_OPT_BOOL,
1495 .off1 = td_var_offset(use_os_rand),
1496 .help = "Set to use OS random generator",
1497 .def = "0",
1498 .parent = "rw",
1499 },
214e1eca
JA		 1500 {
1501 .name = "norandommap",
1502 .type = FIO_OPT_STR_SET,
1503 .off1 = td_var_offset(norandommap),
1504 .help = "Accept potential duplicate random blocks",
67a1000f 1505 .parent = "rw",
214e1eca 1506 },
2b386d25
JA		 1507 {
1508 .name = "softrandommap",
1509 .type = FIO_OPT_BOOL,
1510 .off1 = td_var_offset(softrandommap),
f66ab3c8 1511 .help = "Set norandommap if randommap allocation fails",
2b386d25
JA		 1512 .parent = "norandommap",
1513 .def = "0",
1514 },
8055e41d
JA		 1515 {
1516 .name = "random_generator",
1517 .type = FIO_OPT_STR,
1518 .off1 = td_var_offset(random_generator),
1519 .help = "Type of random number generator to use",
1520 .def = "tausworthe",
1521 .posval = {
1522 { .ival = "tausworthe",
1523 .oval = FIO_RAND_GEN_TAUSWORTHE,
1524 .help = "Strong Tausworthe generator",
1525 },
1526 { .ival = "lfsr",
1527 .oval = FIO_RAND_GEN_LFSR,
1528 .help = "Variable length LFSR",
1529 },
1530 },
1531 },
e25839d4
JA		 1532 {
1533 .name = "random_distribution",
1534 .type = FIO_OPT_STR,
1535 .off1 = td_var_offset(random_distribution),
1536 .cb = str_random_distribution_cb,
1537 .help = "Random offset distribution generator",
1538 .def = "random",
1539 .posval = {
1540 { .ival = "random",
1541 .oval = FIO_RAND_DIST_RANDOM,
1542 .help = "Completely random",
1543 },
1544 { .ival = "zipf",
1545 .oval = FIO_RAND_DIST_ZIPF,
1546 .help = "Zipf distribution",
1547 },
925fee33
JA		 1548 { .ival = "pareto",
1549 .oval = FIO_RAND_DIST_PARETO,
1550 .help = "Pareto distribution",
1551 },
e25839d4
JA		 1552 },
1553 },
214e1eca
JA		 1554 {
1555 .name = "nrfiles",
d7c8be03 1556 .alias = "nr_files",
214e1eca
JA		 1557 .type = FIO_OPT_INT,
1558 .off1 = td_var_offset(nr_files),
1559 .help = "Split job workload between this number of files",
1560 .def = "1",
1561 },
1562 {
1563 .name = "openfiles",
1564 .type = FIO_OPT_INT,
1565 .off1 = td_var_offset(open_files),
1566 .help = "Number of files to keep open at the same time",
1567 },
1568 {
1569 .name = "file_service_type",
1570 .type = FIO_OPT_STR,
1571 .cb = str_fst_cb,
1572 .off1 = td_var_offset(file_service_type),
1573 .help = "How to select which file to service next",
1574 .def = "roundrobin",
1575 .posval = {
1576 { .ival = "random",
1577 .oval = FIO_FSERVICE_RANDOM,
1578 .help = "Choose a file at random",
1579 },
1580 { .ival = "roundrobin",
1581 .oval = FIO_FSERVICE_RR,
1582 .help = "Round robin select files",
1583 },
a086c257
JA		 1584 { .ival = "sequential",
1585 .oval = FIO_FSERVICE_SEQ,
1586 .help = "Finish one file before moving to the next",
1587 },
214e1eca 1588 },
67a1000f
JA		 1589 .parent = "nrfiles",
1590 },
7bc8c2cf
JA		 1591#ifdef FIO_HAVE_FALLOCATE
1592 {
1593 .name = "fallocate",
a596f047
EG		 1594 .type = FIO_OPT_STR,
1595 .off1 = td_var_offset(fallocate_mode),
1596 .help = "Whether pre-allocation is performed when laying out files",
1597 .def = "posix",
1598 .posval = {
1599 { .ival = "none",
1600 .oval = FIO_FALLOCATE_NONE,
1601 .help = "Do not pre-allocate space",
1602 },
1603 { .ival = "posix",
1604 .oval = FIO_FALLOCATE_POSIX,
1605 .help = "Use posix_fallocate()",
1606 },
1607#ifdef FIO_HAVE_LINUX_FALLOCATE
1608 { .ival = "keep",
1609 .oval = FIO_FALLOCATE_KEEP_SIZE,
1610 .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
1611 },
7bc8c2cf 1612#endif
a596f047
EG		 1613 /* Compatibility with former boolean values */
1614 { .ival = "0",
1615 .oval = FIO_FALLOCATE_NONE,
1616 .help = "Alias for 'none'",
1617 },
1618 { .ival = "1",
1619 .oval = FIO_FALLOCATE_POSIX,
1620 .help = "Alias for 'posix'",
1621 },
1622 },
1623 },
1624#endif /* FIO_HAVE_FALLOCATE */
67a1000f
JA		 1625 {
1626 .name = "fadvise_hint",
1627 .type = FIO_OPT_BOOL,
1628 .off1 = td_var_offset(fadvise_hint),
1629 .help = "Use fadvise() to advise the kernel on IO pattern",
1630 .def = "1",
214e1eca
JA		 1631 },
1632 {
1633 .name = "fsync",
1634 .type = FIO_OPT_INT,
1635 .off1 = td_var_offset(fsync_blocks),
1636 .help = "Issue fsync for writes every given number of blocks",
1637 .def = "0",
1638 },
5f9099ea
JA		 1639 {
1640 .name = "fdatasync",
1641 .type = FIO_OPT_INT,
1642 .off1 = td_var_offset(fdatasync_blocks),
1643 .help = "Issue fdatasync for writes every given number of blocks",
1644 .def = "0",
1645 },
1ef2b6be
JA		 1646 {
1647 .name = "write_barrier",
1648 .type = FIO_OPT_INT,
1649 .off1 = td_var_offset(barrier_blocks),
1650 .help = "Make every Nth write a barrier write",
1651 .def = "0",
1652 },
44f29692
JA		 1653#ifdef FIO_HAVE_SYNC_FILE_RANGE
1654 {
1655 .name = "sync_file_range",
1656 .posval = {
1657 { .ival = "wait_before",
1658 .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
1659 .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
3843deb3 1660 .or = 1,
44f29692
JA		 1661 },
1662 { .ival = "write",
1663 .oval = SYNC_FILE_RANGE_WRITE,
1664 .help = "SYNC_FILE_RANGE_WRITE",
3843deb3 1665 .or = 1,
44f29692
JA		 1666 },
1667 {
1668 .ival = "wait_after",
1669 .oval = SYNC_FILE_RANGE_WAIT_AFTER,
1670 .help = "SYNC_FILE_RANGE_WAIT_AFTER",
3843deb3 1671 .or = 1,
44f29692
JA		 1672 },
1673 },
3843deb3 1674 .type = FIO_OPT_STR_MULTI,
44f29692
JA		 1675 .cb = str_sfr_cb,
1676 .off1 = td_var_offset(sync_file_range),
1677 .help = "Use sync_file_range()",
1678 },
1679#endif
214e1eca
JA		 1680 {
1681 .name = "direct",
1682 .type = FIO_OPT_BOOL,
1683 .off1 = td_var_offset(odirect),
1684 .help = "Use O_DIRECT IO (negates buffered)",
1685 .def = "0",
1686 },
1687 {
1688 .name = "buffered",
1689 .type = FIO_OPT_BOOL,
1690 .off1 = td_var_offset(odirect),
1691 .neg = 1,
1692 .help = "Use buffered IO (negates direct)",
1693 .def = "1",
1694 },
1695 {
1696 .name = "overwrite",
1697 .type = FIO_OPT_BOOL,
1698 .off1 = td_var_offset(overwrite),
1699 .help = "When writing, set whether to overwrite current data",
1700 .def = "0",
1701 },
1702 {
1703 .name = "loops",
1704 .type = FIO_OPT_INT,
1705 .off1 = td_var_offset(loops),
1706 .help = "Number of times to run the job",
1707 .def = "1",
1708 },
1709 {
1710 .name = "numjobs",
1711 .type = FIO_OPT_INT,
1712 .off1 = td_var_offset(numjobs),
1713 .help = "Duplicate this job this many times",
1714 .def = "1",
1715 },
1716 {
1717 .name = "startdelay",
a5737c93 1718 .type = FIO_OPT_STR_VAL_TIME,
214e1eca
JA		 1719 .off1 = td_var_offset(start_delay),
1720 .help = "Only start job when this period has passed",
1721 .def = "0",
1722 },
1723 {
1724 .name = "runtime",
1725 .alias = "timeout",
1726 .type = FIO_OPT_STR_VAL_TIME,
1727 .off1 = td_var_offset(timeout),
1728 .help = "Stop workload when this amount of time has passed",
1729 .def = "0",
1730 },
cf4464ca
JA		 1731 {
1732 .name = "time_based",
1733 .type = FIO_OPT_STR_SET,
1734 .off1 = td_var_offset(time_based),
1735 .help = "Keep running until runtime/timeout is met",
1736 },
721938ae
JA		 1737 {
1738 .name = "ramp_time",
1739 .type = FIO_OPT_STR_VAL_TIME,
1740 .off1 = td_var_offset(ramp_time),
1741 .help = "Ramp up time before measuring performance",
1742 },
c223da83
JA		 1743 {
1744 .name = "clocksource",
1745 .type = FIO_OPT_STR,
1746 .cb = fio_clock_source_cb,
1747 .off1 = td_var_offset(clocksource),
1748 .help = "What type of timing source to use",
c223da83
JA		 1749 .posval = {
1750 { .ival = "gettimeofday",
1751 .oval = CS_GTOD,
1752 .help = "Use gettimeofday(2) for timing",
1753 },
1754 { .ival = "clock_gettime",
1755 .oval = CS_CGETTIME,
1756 .help = "Use clock_gettime(2) for timing",
1757 },
1758#ifdef ARCH_HAVE_CPU_CLOCK
1759 { .ival = "cpu",
1760 .oval = CS_CPUCLOCK,
1761 .help = "Use CPU private clock",
1762 },
1763#endif
1764 },
1765 },
214e1eca
JA		 1766 {
1767 .name = "mem",
d3aad8f2 1768 .alias = "iomem",
214e1eca
JA		 1769 .type = FIO_OPT_STR,
1770 .cb = str_mem_cb,
1771 .off1 = td_var_offset(mem_type),
1772 .help = "Backing type for IO buffers",
1773 .def = "malloc",
1774 .posval = {
1775 { .ival = "malloc",
1776 .oval = MEM_MALLOC,
1777 .help = "Use malloc(3) for IO buffers",
1778 },
37c8cdfe
JA		 1779 { .ival = "shm",
1780 .oval = MEM_SHM,
1781 .help = "Use shared memory segments for IO buffers",
1782 },
214e1eca
JA		 1783#ifdef FIO_HAVE_HUGETLB
1784 { .ival = "shmhuge",
1785 .oval = MEM_SHMHUGE,
1786 .help = "Like shm, but use huge pages",
1787 },
b370e46a 1788#endif
37c8cdfe
JA		 1789 { .ival = "mmap",
1790 .oval = MEM_MMAP,
1791 .help = "Use mmap(2) (file or anon) for IO buffers",
1792 },
214e1eca
JA		 1793#ifdef FIO_HAVE_HUGETLB
1794 { .ival = "mmaphuge",
1795 .oval = MEM_MMAPHUGE,
1796 .help = "Like mmap, but use huge pages",
1797 },
1798#endif
1799 },
1800 },
d529ee19
JA		 1801 {
1802 .name = "iomem_align",
1803 .alias = "mem_align",
1804 .type = FIO_OPT_INT,
1805 .off1 = td_var_offset(mem_align),
1806 .minval = 0,
1807 .help = "IO memory buffer offset alignment",
1808 .def = "0",
1809 .parent = "iomem",
1810 },
214e1eca
JA		 1811 {
1812 .name = "verify",
1813 .type = FIO_OPT_STR,
1814 .off1 = td_var_offset(verify),
1815 .help = "Verify data written",
5d7c5d34 1816 .cb = str_verify_cb,
214e1eca
JA		 1817 .def = "0",
1818 .posval = {
1819 { .ival = "0",
1820 .oval = VERIFY_NONE,
1821 .help = "Don't do IO verification",
1822 },
fcca4b58
JA		 1823 { .ival = "md5",
1824 .oval = VERIFY_MD5,
1825 .help = "Use md5 checksums for verification",
1826 },
d77a7af3
JA		 1827 { .ival = "crc64",
1828 .oval = VERIFY_CRC64,
1829 .help = "Use crc64 checksums for verification",
1830 },
214e1eca
JA		 1831 { .ival = "crc32",
1832 .oval = VERIFY_CRC32,
1833 .help = "Use crc32 checksums for verification",
1834 },
af497e6a 1835 { .ival = "crc32c-intel",
e3aaafc4
JA		 1836 .oval = VERIFY_CRC32C,
1837 .help = "Use crc32c checksums for verification (hw assisted, if available)",
af497e6a 1838 },
bac39e0e
JA		 1839 { .ival = "crc32c",
1840 .oval = VERIFY_CRC32C,
e3aaafc4 1841 .help = "Use crc32c checksums for verification (hw assisted, if available)",
bac39e0e 1842 },
969f7ed3
JA		 1843 { .ival = "crc16",
1844 .oval = VERIFY_CRC16,
1845 .help = "Use crc16 checksums for verification",
1846 },
1e154bdb
JA		 1847 { .ival = "crc7",
1848 .oval = VERIFY_CRC7,
1849 .help = "Use crc7 checksums for verification",
1850 },
7c353ceb
JA		 1851 { .ival = "sha1",
1852 .oval = VERIFY_SHA1,
1853 .help = "Use sha1 checksums for verification",
1854 },
cd14cc10
JA		 1855 { .ival = "sha256",
1856 .oval = VERIFY_SHA256,
1857 .help = "Use sha256 checksums for verification",
1858 },
1859 { .ival = "sha512",
1860 .oval = VERIFY_SHA512,
1861 .help = "Use sha512 checksums for verification",
1862 },
7437ee87
SL		 1863 { .ival = "meta",
1864 .oval = VERIFY_META,
1865 .help = "Use io information",
1866 },
36690c9b
JA		 1867 {
1868 .ival = "null",
1869 .oval = VERIFY_NULL,
1870 .help = "Pretend to verify",
1871 },
214e1eca
JA		 1872 },
1873 },
005c565a
JA		 1874 {
1875 .name = "do_verify",
68e1f29a 1876 .type = FIO_OPT_BOOL,
005c565a
JA		 1877 .off1 = td_var_offset(do_verify),
1878 .help = "Run verification stage after write",
1879 .def = "1",
1880 .parent = "verify",
1881 },
160b966d
JA		 1882 {
1883 .name = "verifysort",
1884 .type = FIO_OPT_BOOL,
1885 .off1 = td_var_offset(verifysort),
1886 .help = "Sort written verify blocks for read back",
1887 .def = "1",
c83f2df1 1888 .parent = "verify",
160b966d 1889 },
3f9f4e26 1890 {
a59e170d 1891 .name = "verify_interval",
e01b22b8 1892 .type = FIO_OPT_INT,
a59e170d 1893 .off1 = td_var_offset(verify_interval),
819a9680 1894 .minval = 2 * sizeof(struct verify_header),
a59e170d 1895 .help = "Store verify buffer header every N bytes",
afdf9352 1896 .parent = "verify",
3f9f4e26 1897 },
546a9142 1898 {
a59e170d 1899 .name = "verify_offset",
e01b22b8 1900 .type = FIO_OPT_INT,
a59e170d 1901 .help = "Offset verify header location by N bytes",
546a9142 1902 .def = "0",
5ec10eaa 1903 .cb = str_verify_offset_cb,
afdf9352 1904 .parent = "verify",
546a9142 1905 },
e28218f3
SL		 1906 {
1907 .name = "verify_pattern",
0e92f873 1908 .type = FIO_OPT_STR,
e28218f3
SL		 1909 .cb = str_verify_pattern_cb,
1910 .help = "Fill pattern for IO buffers",
1911 .parent = "verify",
1912 },
a12a3b4d
JA		 1913 {
1914 .name = "verify_fatal",
68e1f29a 1915 .type = FIO_OPT_BOOL,
a12a3b4d
JA		 1916 .off1 = td_var_offset(verify_fatal),
1917 .def = "0",
1918 .help = "Exit on a single verify failure, don't continue",
1919 .parent = "verify",
1920 },
b463e936
JA		 1921 {
1922 .name = "verify_dump",
1923 .type = FIO_OPT_BOOL,
1924 .off1 = td_var_offset(verify_dump),
ef71e317 1925 .def = "0",
b463e936
JA		 1926 .help = "Dump contents of good and bad blocks on failure",
1927 .parent = "verify",
1928 },
e8462bd8
JA		 1929 {
1930 .name = "verify_async",
1931 .type = FIO_OPT_INT,
1932 .off1 = td_var_offset(verify_async),
1933 .def = "0",
1934 .help = "Number of async verifier threads to use",
1935 .parent = "verify",
1936 },
9e144189
JA		 1937 {
1938 .name = "verify_backlog",
1939 .type = FIO_OPT_STR_VAL,
1940 .off1 = td_var_offset(verify_backlog),
1941 .help = "Verify after this number of blocks are written",
1942 .parent = "verify",
1943 },
1944 {
1945 .name = "verify_backlog_batch",
1946 .type = FIO_OPT_INT,
1947 .off1 = td_var_offset(verify_batch),
1948 .help = "Verify this number of IO blocks",
0d29de83 1949 .parent = "verify",
9e144189 1950 },
e8462bd8
JA		 1951#ifdef FIO_HAVE_CPU_AFFINITY
1952 {
1953 .name = "verify_async_cpus",
1954 .type = FIO_OPT_STR,
1955 .cb = str_verify_cpus_allowed_cb,
1956 .help = "Set CPUs allowed for async verify threads",
1957 .parent = "verify_async",
1958 },
0d29de83
JA		 1959#endif
1960#ifdef FIO_HAVE_TRIM
1961 {
1962 .name = "trim_percentage",
1963 .type = FIO_OPT_INT,
1964 .cb = str_verify_trim_cb,
1965 .maxval = 100,
1966 .help = "Number of verify blocks to discard/trim",
1967 .parent = "verify",
1968 .def = "0",
1969 },
1970 {
1971 .name = "trim_verify_zero",
1972 .type = FIO_OPT_INT,
1973 .help = "Verify that trim/discarded blocks are returned as zeroes",
1974 .off1 = td_var_offset(trim_zero),
1975 .parent = "trim_percentage",
1976 .def = "1",
1977 },
1978 {
1979 .name = "trim_backlog",
1980 .type = FIO_OPT_STR_VAL,
1981 .off1 = td_var_offset(trim_backlog),
1982 .help = "Trim after this number of blocks are written",
1983 .parent = "trim_percentage",
1984 },
1985 {
1986 .name = "trim_backlog_batch",
1987 .type = FIO_OPT_INT,
1988 .off1 = td_var_offset(trim_batch),
1989 .help = "Trim this number of IO blocks",
1990 .parent = "trim_percentage",
1991 },
e8462bd8 1992#endif
214e1eca
JA		 1993 {
1994 .name = "write_iolog",
1995 .type = FIO_OPT_STR_STORE,
1996 .off1 = td_var_offset(write_iolog_file),
1997 .help = "Store IO pattern to file",
1998 },
1999 {
2000 .name = "read_iolog",
2001 .type = FIO_OPT_STR_STORE,
2002 .off1 = td_var_offset(read_iolog_file),
2003 .help = "Playback IO pattern from file",
2004 },
64bbb865
DN		 2005 {
2006 .name = "replay_no_stall",
2007 .type = FIO_OPT_INT,
2008 .off1 = td_var_offset(no_stall),
2009 .def = "0",
87e7a972 2010 .parent = "read_iolog",
64bbb865
DN		 2011 .help = "Playback IO pattern file as fast as possible without stalls",
2012 },
d1c46c04
DN		 2013 {
2014 .name = "replay_redirect",
2015 .type = FIO_OPT_STR_STORE,
2016 .off1 = td_var_offset(replay_redirect),
2017 .parent = "read_iolog",
2018 .help = "Replay all I/O onto this device, regardless of trace device",
2019 },
214e1eca
JA		 2020 {
2021 .name = "exec_prerun",
2022 .type = FIO_OPT_STR_STORE,
2023 .off1 = td_var_offset(exec_prerun),
2024 .help = "Execute this file prior to running job",
2025 },
2026 {
2027 .name = "exec_postrun",
2028 .type = FIO_OPT_STR_STORE,
2029 .off1 = td_var_offset(exec_postrun),
2030 .help = "Execute this file after running job",
2031 },
2032#ifdef FIO_HAVE_IOSCHED_SWITCH
2033 {
2034 .name = "ioscheduler",
2035 .type = FIO_OPT_STR_STORE,
2036 .off1 = td_var_offset(ioscheduler),
2037 .help = "Use this IO scheduler on the backing device",
2038 },
2039#endif
2040 {
2041 .name = "zonesize",
2042 .type = FIO_OPT_STR_VAL,
2043 .off1 = td_var_offset(zone_size),
ed335855
SN		 2044 .help = "Amount of data to read per zone",
2045 .def = "0",
2046 },
2047 {
2048 .name = "zonerange",
2049 .type = FIO_OPT_STR_VAL,
2050 .off1 = td_var_offset(zone_range),
214e1eca
JA		 2051 .help = "Give size of an IO zone",
2052 .def = "0",
2053 },
2054 {
2055 .name = "zoneskip",
2056 .type = FIO_OPT_STR_VAL,
2057 .off1 = td_var_offset(zone_skip),
2058 .help = "Space between IO zones",
2059 .def = "0",
2060 },
2061 {
2062 .name = "lockmem",
2063 .type = FIO_OPT_STR_VAL,
2064 .cb = str_lockmem_cb,
2065 .help = "Lock down this amount of memory",
2066 .def = "0",
2067 },
214e1eca
JA		 2068 {
2069 .name = "rwmixread",
2070 .type = FIO_OPT_INT,
cb499fc4 2071 .cb = str_rwmix_read_cb,
214e1eca
JA		 2072 .maxval = 100,
2073 .help = "Percentage of mixed workload that is reads",
2074 .def = "50",
2075 },
2076 {
2077 .name = "rwmixwrite",
2078 .type = FIO_OPT_INT,
cb499fc4 2079 .cb = str_rwmix_write_cb,
214e1eca
JA		 2080 .maxval = 100,
2081 .help = "Percentage of mixed workload that is writes",
2082 .def = "50",
2083 },
afdf9352
JA		 2084 {
2085 .name = "rwmixcycle",
15ca150e 2086 .type = FIO_OPT_DEPRECATED,
afdf9352 2087 },
214e1eca
JA		 2088 {
2089 .name = "nice",
2090 .type = FIO_OPT_INT,
2091 .off1 = td_var_offset(nice),
2092 .help = "Set job CPU nice value",
2093 .minval = -19,
2094 .maxval = 20,
2095 .def = "0",
2096 },
2097#ifdef FIO_HAVE_IOPRIO
2098 {
2099 .name = "prio",
2100 .type = FIO_OPT_INT,
2101 .cb = str_prio_cb,
2102 .help = "Set job IO priority value",
2103 .minval = 0,
2104 .maxval = 7,
2105 },
2106 {
2107 .name = "prioclass",
2108 .type = FIO_OPT_INT,
2109 .cb = str_prioclass_cb,
2110 .help = "Set job IO priority class",
2111 .minval = 0,
2112 .maxval = 3,
2113 },
2114#endif
2115 {
2116 .name = "thinktime",
2117 .type = FIO_OPT_INT,
2118 .off1 = td_var_offset(thinktime),
2119 .help = "Idle time between IO buffers (usec)",
2120 .def = "0",
2121 },
2122 {
2123 .name = "thinktime_spin",
2124 .type = FIO_OPT_INT,
2125 .off1 = td_var_offset(thinktime_spin),
2126 .help = "Start think time by spinning this amount (usec)",
2127 .def = "0",
afdf9352 2128 .parent = "thinktime",
214e1eca
JA		 2129 },
2130 {
2131 .name = "thinktime_blocks",
2132 .type = FIO_OPT_INT,
2133 .off1 = td_var_offset(thinktime_blocks),
2134 .help = "IO buffer period between 'thinktime'",
2135 .def = "1",
afdf9352 2136 .parent = "thinktime",
214e1eca
JA		 2137 },
2138 {
2139 .name = "rate",
e01b22b8 2140 .type = FIO_OPT_INT,
6eaf09d6
SL		 2141 .off1 = td_var_offset(rate[DDIR_READ]),
2142 .off2 = td_var_offset(rate[DDIR_WRITE]),
2143 .off3 = td_var_offset(rate[DDIR_TRIM]),
214e1eca
JA		 2144 .help = "Set bandwidth rate",
2145 },
2146 {
2147 .name = "ratemin",
e01b22b8 2148 .type = FIO_OPT_INT,
6eaf09d6
SL		 2149 .off1 = td_var_offset(ratemin[DDIR_READ]),
2150 .off2 = td_var_offset(ratemin[DDIR_WRITE]),
2151 .off3 = td_var_offset(ratemin[DDIR_TRIM]),
4e991c23 2152 .help = "Job must meet this rate or it will be shutdown",
afdf9352 2153 .parent = "rate",
4e991c23
JA		 2154 },
2155 {
2156 .name = "rate_iops",
e01b22b8 2157 .type = FIO_OPT_INT,
6eaf09d6
SL		 2158 .off1 = td_var_offset(rate_iops[DDIR_READ]),
2159 .off2 = td_var_offset(rate_iops[DDIR_WRITE]),
2160 .off3 = td_var_offset(rate_iops[DDIR_TRIM]),
4e991c23
JA		 2161 .help = "Limit IO used to this number of IO operations/sec",
2162 },
2163 {
2164 .name = "rate_iops_min",
e01b22b8 2165 .type = FIO_OPT_INT,
6eaf09d6
SL		 2166 .off1 = td_var_offset(rate_iops_min[DDIR_READ]),
2167 .off2 = td_var_offset(rate_iops_min[DDIR_WRITE]),
2168 .off3 = td_var_offset(rate_iops_min[DDIR_TRIM]),
03e20d68 2169 .help = "Job must meet this rate or it will be shut down",
afdf9352 2170 .parent = "rate_iops",
214e1eca
JA		 2171 },
2172 {
2173 .name = "ratecycle",
2174 .type = FIO_OPT_INT,
2175 .off1 = td_var_offset(ratecycle),
2176 .help = "Window average for rate limits (msec)",
2177 .def = "1000",
afdf9352 2178 .parent = "rate",
214e1eca 2179 },
15501535
JA		 2180 {
2181 .name = "max_latency",
2182 .type = FIO_OPT_INT,
2183 .off1 = td_var_offset(max_latency),
2184 .help = "Maximum tolerated IO latency (usec)",
2185 },
214e1eca
JA		 2186 {
2187 .name = "invalidate",
2188 .type = FIO_OPT_BOOL,
2189 .off1 = td_var_offset(invalidate_cache),
2190 .help = "Invalidate buffer/page cache prior to running job",
2191 .def = "1",
2192 },
2193 {
2194 .name = "sync",
2195 .type = FIO_OPT_BOOL,
2196 .off1 = td_var_offset(sync_io),
2197 .help = "Use O_SYNC for buffered writes",
2198 .def = "0",
67a1000f 2199 .parent = "buffered",
214e1eca
JA		 2200 },
2201 {
2202 .name = "bwavgtime",
2203 .type = FIO_OPT_INT,
2204 .off1 = td_var_offset(bw_avg_time),
5ec10eaa
JA		 2205 .help = "Time window over which to calculate bandwidth"
2206 " (msec)",
214e1eca 2207 .def = "500",
c8eeb9df
JA		 2208 .parent = "write_bw_log",
2209 },
2210 {
2211 .name = "iopsavgtime",
2212 .type = FIO_OPT_INT,
2213 .off1 = td_var_offset(iops_avg_time),
2214 .help = "Time window over which to calculate IOPS (msec)",
2215 .def = "500",
2216 .parent = "write_iops_log",
214e1eca
JA		 2217 },
2218 {
2219 .name = "create_serialize",
2220 .type = FIO_OPT_BOOL,
2221 .off1 = td_var_offset(create_serialize),
2222 .help = "Serialize creating of job files",
2223 .def = "1",
2224 },
2225 {
2226 .name = "create_fsync",
2227 .type = FIO_OPT_BOOL,
2228 .off1 = td_var_offset(create_fsync),
03e20d68 2229 .help = "fsync file after creation",
214e1eca
JA		 2230 .def = "1",
2231 },
814452bd
JA		 2232 {
2233 .name = "create_on_open",
2234 .type = FIO_OPT_BOOL,
2235 .off1 = td_var_offset(create_on_open),
2236 .help = "Create files when they are opened for IO",
2237 .def = "0",
2238 },
25460cf6
JA		 2239 {
2240 .name = "create_only",
2241 .type = FIO_OPT_BOOL,
2242 .off1 = td_var_offset(create_only),
2243 .help = "Only perform file creation phase",
2244 .def = "0",
2245 },
0b9d69ec 2246 {
afad68f7
ZY		 2247 .name = "pre_read",
2248 .type = FIO_OPT_BOOL,
2249 .off1 = td_var_offset(pre_read),
03e20d68 2250 .help = "Pre-read files before starting official testing",
afad68f7
ZY		 2251 .def = "0",
2252 },
214e1eca
JA		 2253 {
2254 .name = "cpuload",
2255 .type = FIO_OPT_INT,
2256 .off1 = td_var_offset(cpuload),
2257 .help = "Use this percentage of CPU",
2258 },
2259 {
2260 .name = "cpuchunks",
2261 .type = FIO_OPT_INT,
2262 .off1 = td_var_offset(cpucycle),
2263 .help = "Length of the CPU burn cycles (usecs)",
2264 .def = "50000",
67a1000f 2265 .parent = "cpuload",
214e1eca
JA		 2266 },
2267#ifdef FIO_HAVE_CPU_AFFINITY
2268 {
2269 .name = "cpumask",
2270 .type = FIO_OPT_INT,
2271 .cb = str_cpumask_cb,
2272 .help = "CPU affinity mask",
2273 },
d2e268b0
JA		 2274 {
2275 .name = "cpus_allowed",
2276 .type = FIO_OPT_STR,
2277 .cb = str_cpus_allowed_cb,
2278 .help = "Set CPUs allowed",
2279 },
d0b937ed
YR		 2280#endif
2281#ifdef FIO_HAVE_LIBNUMA
2282 {
2283 .name = "numa_cpu_nodes",
2284 .type = FIO_OPT_STR,
2285 .cb = str_numa_cpunodes_cb,
2286 .help = "NUMA CPU nodes bind",
2287 },
2288 {
2289 .name = "numa_mem_policy",
2290 .type = FIO_OPT_STR,
2291 .cb = str_numa_mpol_cb,
2292 .help = "NUMA memory policy setup",
2293 },
214e1eca
JA		 2294#endif
2295 {
2296 .name = "end_fsync",
2297 .type = FIO_OPT_BOOL,
2298 .off1 = td_var_offset(end_fsync),
2299 .help = "Include fsync at the end of job",
2300 .def = "0",
2301 },
2302 {
2303 .name = "fsync_on_close",
2304 .type = FIO_OPT_BOOL,
2305 .off1 = td_var_offset(fsync_on_close),
2306 .help = "fsync files on close",
2307 .def = "0",
2308 },
2309 {
2310 .name = "unlink",
2311 .type = FIO_OPT_BOOL,
2312 .off1 = td_var_offset(unlink),
2313 .help = "Unlink created files after job has completed",
2314 .def = "0",
2315 },
2316 {
2317 .name = "exitall",
2318 .type = FIO_OPT_STR_SET,
2319 .cb = str_exitall_cb,
2320 .help = "Terminate all jobs when one exits",
2321 },
2322 {
2323 .name = "stonewall",
d392365e 2324 .alias = "wait_for_previous",
214e1eca
JA		 2325 .type = FIO_OPT_STR_SET,
2326 .off1 = td_var_offset(stonewall),
2327 .help = "Insert a hard barrier between this job and previous",
2328 },
b3d62a75
JA		 2329 {
2330 .name = "new_group",
2331 .type = FIO_OPT_STR_SET,
2332 .off1 = td_var_offset(new_group),
2333 .help = "Mark the start of a new group (for reporting)",
2334 },
214e1eca
JA		 2335 {
2336 .name = "thread",
2337 .type = FIO_OPT_STR_SET,
2338 .off1 = td_var_offset(use_thread),
2339 .help = "Use threads instead of forks",
2340 },
2341 {
2342 .name = "write_bw_log",
e3cedca7 2343 .type = FIO_OPT_STR,
214e1eca 2344 .off1 = td_var_offset(write_bw_log),
e3cedca7 2345 .cb = str_write_bw_log_cb,
214e1eca
JA		 2346 .help = "Write log of bandwidth during run",
2347 },
2348 {
2349 .name = "write_lat_log",
e3cedca7 2350 .type = FIO_OPT_STR,
214e1eca 2351 .off1 = td_var_offset(write_lat_log),
e3cedca7 2352 .cb = str_write_lat_log_cb,
214e1eca
JA		 2353 .help = "Write log of latency during run",
2354 },
c8eeb9df
JA		 2355 {
2356 .name = "write_iops_log",
2357 .type = FIO_OPT_STR,
2358 .off1 = td_var_offset(write_iops_log),
2359 .cb = str_write_iops_log_cb,
2360 .help = "Write log of IOPS during run",
2361 },
b8bc8cba
JA		 2362 {
2363 .name = "log_avg_msec",
2364 .type = FIO_OPT_INT,
2365 .off1 = td_var_offset(log_avg_msec),
2366 .help = "Average bw/iops/lat logs over this period of time",
2367 .def = "0",
2368 },
214e1eca
JA		 2369 {
2370 .name = "hugepage-size",
e01b22b8 2371 .type = FIO_OPT_INT,
214e1eca
JA		 2372 .off1 = td_var_offset(hugepage_size),
2373 .help = "When using hugepages, specify size of each page",
81179eec 2374 .def = __fio_stringify(FIO_HUGE_PAGE),
214e1eca
JA		 2375 },
2376 {
2377 .name = "group_reporting",
2378 .type = FIO_OPT_STR_SET,
2379 .off1 = td_var_offset(group_reporting),
2380 .help = "Do reporting on a per-group basis",
2381 },
e9459e5a
JA		 2382 {
2383 .name = "zero_buffers",
2384 .type = FIO_OPT_STR_SET,
2385 .off1 = td_var_offset(zero_buffers),
2386 .help = "Init IO buffers to all zeroes",
2387 },
5973cafb
JA		 2388 {
2389 .name = "refill_buffers",
2390 .type = FIO_OPT_STR_SET,
2391 .off1 = td_var_offset(refill_buffers),
2392 .help = "Refill IO buffers on every IO submit",
2393 },
fd68418e
JA		 2394 {
2395 .name = "scramble_buffers",
2396 .type = FIO_OPT_BOOL,
2397 .off1 = td_var_offset(scramble_buffers),
2398 .help = "Slightly scramble buffers on every IO submit",
2399 .def = "1",
2400 },
9c42684e
JA		 2401 {
2402 .name = "buffer_compress_percentage",
2403 .type = FIO_OPT_INT,
2404 .off1 = td_var_offset(compress_percentage),
2405 .maxval = 100,
2406 .minval = 1,
2407 .help = "How compressible the buffer is (approximately)",
2408 },
f97a43a1
JA		 2409 {
2410 .name = "buffer_compress_chunk",
2411 .type = FIO_OPT_INT,
2412 .off1 = td_var_offset(compress_chunk),
207b18e4 2413 .parent = "buffer_compress_percentage",
f97a43a1
JA		 2414 .help = "Size of compressible region in buffer",
2415 },
83349190
YH		 2416 {
2417 .name = "clat_percentiles",
2418 .type = FIO_OPT_BOOL,
2419 .off1 = td_var_offset(clat_percentiles),
2420 .help = "Enable the reporting of completion latency percentiles",
467b35ed 2421 .def = "1",
83349190
YH		 2422 },
2423 {
2424 .name = "percentile_list",
2425 .type = FIO_OPT_FLOAT_LIST,
2426 .off1 = td_var_offset(percentile_list),
2427 .off2 = td_var_offset(overwrite_plist),
2428 .help = "Specify a custom list of percentiles to report",
2429 .maxlen = FIO_IO_U_LIST_MAX_LEN,
2430 .minfp = 0.0,
2431 .maxfp = 100.0,
2432 },
2433
0a839f30
JA		 2434#ifdef FIO_HAVE_DISK_UTIL
2435 {
2436 .name = "disk_util",
2437 .type = FIO_OPT_BOOL,
2438 .off1 = td_var_offset(do_disk_util),
f66ab3c8 2439 .help = "Log disk utilization statistics",
0a839f30
JA		 2440 .def = "1",
2441 },
2442#endif
993bf48b
JA		 2443 {
2444 .name = "gtod_reduce",
2445 .type = FIO_OPT_BOOL,
2446 .help = "Greatly reduce number of gettimeofday() calls",
2447 .cb = str_gtod_reduce_cb,
2448 .def = "0",
2449 },
02af0988
JA		 2450 {
2451 .name = "disable_lat",
2452 .type = FIO_OPT_BOOL,
2453 .off1 = td_var_offset(disable_lat),
2454 .help = "Disable latency numbers",
2455 .parent = "gtod_reduce",
2456 .def = "0",
2457 },
9520ebb9
JA		 2458 {
2459 .name = "disable_clat",
2460 .type = FIO_OPT_BOOL,
2461 .off1 = td_var_offset(disable_clat),
2462 .help = "Disable completion latency numbers",
993bf48b 2463 .parent = "gtod_reduce",
9520ebb9
JA		 2464 .def = "0",
2465 },
2466 {
2467 .name = "disable_slat",
2468 .type = FIO_OPT_BOOL,
2469 .off1 = td_var_offset(disable_slat),
03e20d68 2470 .help = "Disable submission latency numbers",
993bf48b 2471 .parent = "gtod_reduce",
9520ebb9
JA		 2472 .def = "0",
2473 },
2474 {
2475 .name = "disable_bw_measurement",
2476 .type = FIO_OPT_BOOL,
2477 .off1 = td_var_offset(disable_bw),
2478 .help = "Disable bandwidth logging",
993bf48b 2479 .parent = "gtod_reduce",
9520ebb9
JA		 2480 .def = "0",
2481 },
be4ecfdf
JA		 2482 {
2483 .name = "gtod_cpu",
2484 .type = FIO_OPT_INT,
2485 .cb = str_gtod_cpu_cb,
03e20d68 2486 .help = "Set up dedicated gettimeofday() thread on this CPU",
29d43ff9 2487 .verify = gtod_cpu_verify,
be4ecfdf 2488 },
f2bba182
RR		 2489 {
2490 .name = "continue_on_error",
06842027 2491 .type = FIO_OPT_STR,
f2bba182 2492 .off1 = td_var_offset(continue_on_error),
03e20d68 2493 .help = "Continue on non-fatal errors during IO",
06842027
SL		 2494 .def = "none",
2495 .posval = {
2496 { .ival = "none",
2497 .oval = ERROR_TYPE_NONE,
2498 .help = "Exit when an error is encountered",
2499 },
2500 { .ival = "read",
2501 .oval = ERROR_TYPE_READ,
2502 .help = "Continue on read errors only",
2503 },
2504 { .ival = "write",
2505 .oval = ERROR_TYPE_WRITE,
2506 .help = "Continue on write errors only",
2507 },
2508 { .ival = "io",
2509 .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
2510 .help = "Continue on any IO errors",
2511 },
2512 { .ival = "verify",
2513 .oval = ERROR_TYPE_VERIFY,
2514 .help = "Continue on verify errors only",
2515 },
2516 { .ival = "all",
2517 .oval = ERROR_TYPE_ANY,
2518 .help = "Continue on all io and verify errors",
2519 },
2520 { .ival = "0",
2521 .oval = ERROR_TYPE_NONE,
2522 .help = "Alias for 'none'",
2523 },
2524 { .ival = "1",
2525 .oval = ERROR_TYPE_ANY,
2526 .help = "Alias for 'all'",
2527 },
2528 },
f2bba182 2529 },
8b28bd41
DM		 2530 {
2531 .name = "ignore_error",
2532 .type = FIO_OPT_STR,
2533 .cb = str_ignore_error_cb,
2534 .help = "Set a specific list of errors to ignore",
2535 .parent = "rw",
2536 },
2537 {
2538 .name = "error_dump",
2539 .type = FIO_OPT_BOOL,
2540 .off1 = td_var_offset(error_dump),
2541 .def = "0",
2542 .help = "Dump info on each error",
2543 },
2544
9ac8a797
JA		 2545 {
2546 .name = "profile",
79d16311 2547 .type = FIO_OPT_STR_STORE,
9ac8a797 2548 .off1 = td_var_offset(profile),
9ac8a797
JA		 2549 .help = "Select a specific builtin performance test",
2550 },
a696fa2a
JA		 2551 {
2552 .name = "cgroup",
2553 .type = FIO_OPT_STR_STORE,
2554 .off1 = td_var_offset(cgroup),
2555 .help = "Add job to cgroup of this name",
2556 },
2557 {
2558 .name = "cgroup_weight",
2559 .type = FIO_OPT_INT,
2560 .off1 = td_var_offset(cgroup_weight),
2561 .help = "Use given weight for cgroup",
2562 .minval = 100,
2563 .maxval = 1000,
a696fa2a 2564 },
7de87099
VG		 2565 {
2566 .name = "cgroup_nodelete",
2567 .type = FIO_OPT_BOOL,
2568 .off1 = td_var_offset(cgroup_nodelete),
2569 .help = "Do not delete cgroups after job completion",
2570 .def = "0",
2571 },
e0b0d892
JA		 2572 {
2573 .name = "uid",
2574 .type = FIO_OPT_INT,
2575 .off1 = td_var_offset(uid),
2576 .help = "Run job with this user ID",
2577 },
2578 {
2579 .name = "gid",
2580 .type = FIO_OPT_INT,
2581 .off1 = td_var_offset(gid),
2582 .help = "Run job with this group ID",
2583 },
9e684a49
DE		 2584 {
2585 .name = "flow_id",
2586 .type = FIO_OPT_INT,
2587 .off1 = td_var_offset(flow_id),
2588 .help = "The flow index ID to use",
2589 .def = "0",
2590 },
2591 {
2592 .name = "flow",
2593 .type = FIO_OPT_INT,
2594 .off1 = td_var_offset(flow),
2595 .help = "Weight for flow control of this job",
2596 .parent = "flow_id",
2597 .def = "0",
2598 },
2599 {
2600 .name = "flow_watermark",
2601 .type = FIO_OPT_INT,
2602 .off1 = td_var_offset(flow_watermark),
2603 .help = "High watermark for flow control. This option"
2604 " should be set to the same value for all threads"
2605 " with non-zero flow.",
2606 .parent = "flow_id",
2607 .def = "1024",
2608 },
2609 {
2610 .name = "flow_sleep",
2611 .type = FIO_OPT_INT,
2612 .off1 = td_var_offset(flow_sleep),
2613 .help = "How many microseconds to sleep after being held"
2614 " back by the flow control mechanism",
2615 .parent = "flow_id",
2616 .def = "0",
2617 },
214e1eca
JA		 2618 {
2619 .name = NULL,
2620 },
2621};
2622
17af15d4 2623static void add_to_lopt(struct option *lopt, struct fio_option *o,
de890a1e 2624 const char *name, int val)
9f81736c 2625{
17af15d4 2626 lopt->name = (char *) name;
de890a1e 2627 lopt->val = val;
9f81736c
JA		 2628 if (o->type == FIO_OPT_STR_SET)
2629 lopt->has_arg = no_argument;
2630 else
2631 lopt->has_arg = required_argument;
2632}
2633
de890a1e
SL		 2634static void options_to_lopts(struct fio_option *opts,
2635 struct option *long_options,
2636 int i, int option_type)
214e1eca 2637{
de890a1e 2638 struct fio_option *o = &opts[0];
214e1eca 2639 while (o->name) {
de890a1e 2640 add_to_lopt(&long_options[i], o, o->name, option_type);
17af15d4
JA		 2641 if (o->alias) {
2642 i++;
de890a1e 2643 add_to_lopt(&long_options[i], o, o->alias, option_type);
17af15d4 2644 }
214e1eca
JA		 2645
2646 i++;
2647 o++;
2648 assert(i < FIO_NR_OPTIONS);
2649 }
2650}
2651
de890a1e
SL		 2652void fio_options_set_ioengine_opts(struct option *long_options,
2653 struct thread_data *td)
2654{
2655 unsigned int i;
2656
2657 i = 0;
2658 while (long_options[i].name) {
2659 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
2660 memset(&long_options[i], 0, sizeof(*long_options));
2661 break;
2662 }
2663 i++;
2664 }
2665
2666 /*
2667 * Just clear out the prior ioengine options.
2668 */
2669 if (!td || !td->eo)
2670 return;
2671
2672 options_to_lopts(td->io_ops->options, long_options, i,
2673 FIO_GETOPT_IOENGINE);
2674}
2675
2676void fio_options_dup_and_init(struct option *long_options)
2677{
2678 unsigned int i;
2679
2680 options_init(options);
2681
2682 i = 0;
2683 while (long_options[i].name)
2684 i++;
2685
2686 options_to_lopts(options, long_options, i, FIO_GETOPT_JOB);
2687}
2688
74929ac2
JA		 2689struct fio_keyword {
2690 const char *word;
2691 const char *desc;
2692 char *replace;
2693};
2694
2695static struct fio_keyword fio_keywords[] = {
2696 {
2697 .word = "$pagesize",
2698 .desc = "Page size in the system",
2699 },
2700 {
2701 .word = "$mb_memory",
2702 .desc = "Megabytes of memory online",
2703 },
2704 {
2705 .word = "$ncpus",
2706 .desc = "Number of CPUs online in the system",
2707 },
2708 {
2709 .word = NULL,
2710 },
2711};
2712
2713void fio_keywords_init(void)
2714{
3b2e1464 2715 unsigned long long mb_memory;
74929ac2
JA		 2716 char buf[128];
2717 long l;
2718
a4cfc477 2719 sprintf(buf, "%lu", (unsigned long) page_size);
74929ac2
JA		 2720 fio_keywords[0].replace = strdup(buf);
2721
8eb016d3 2722 mb_memory = os_phys_mem() / (1024 * 1024);
3b2e1464 2723 sprintf(buf, "%llu", mb_memory);
74929ac2
JA		 2724 fio_keywords[1].replace = strdup(buf);
2725
c00a2289 2726 l = cpus_online();
74929ac2
JA		 2727 sprintf(buf, "%lu", l);
2728 fio_keywords[2].replace = strdup(buf);
2729}
2730
892a6ffc
JA		 2731#define BC_APP "bc"
2732
2733static char *bc_calc(char *str)
2734{
d0c814ec 2735 char buf[128], *tmp;
892a6ffc
JA		 2736 FILE *f;
2737 int ret;
2738
2739 /*
2740 * No math, just return string
2741 */
d0c814ec
SL		 2742 if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
2743 !strchr(str, '/')) || strchr(str, '\''))
892a6ffc
JA		 2744 return str;
2745
2746 /*
2747 * Split option from value, we only need to calculate the value
2748 */
2749 tmp = strchr(str, '=');
2750 if (!tmp)
2751 return str;
2752
2753 tmp++;
892a6ffc 2754
d0c814ec
SL		 2755 /*
2756 * Prevent buffer overflows; such a case isn't reasonable anyway
2757 */
2758 if (strlen(str) >= 128 || strlen(tmp) > 100)
2759 return str;
892a6ffc
JA		 2760
2761 sprintf(buf, "which %s > /dev/null", BC_APP);
2762 if (system(buf)) {
2763 log_err("fio: bc is needed for performing math\n");
892a6ffc
JA		 2764 return NULL;
2765 }
2766
d0c814ec 2767 sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
892a6ffc
JA		 2768 f = popen(buf, "r");
2769 if (!f) {
892a6ffc
JA		 2770 return NULL;
2771 }
2772
d0c814ec 2773 ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
892a6ffc 2774 if (ret <= 0) {
892a6ffc
JA		 2775 return NULL;
2776 }
2777
892a6ffc 2778 pclose(f);
d0c814ec
SL		 2779 buf[(tmp - str) + ret - 1] = '\0';
2780 memcpy(buf, str, tmp - str);
892a6ffc 2781 free(str);
d0c814ec
SL		 2782 return strdup(buf);
2783}
2784
2785/*
2786 * Return a copy of the input string with substrings of the form ${VARNAME}
2787 * substituted with the value of the environment variable VARNAME. The
2788 * substitution always occurs, even if VARNAME is empty or the corresponding
2789 * environment variable undefined.
2790 */
2791static char *option_dup_subs(const char *opt)
2792{
2793 char out[OPT_LEN_MAX+1];
2794 char in[OPT_LEN_MAX+1];
2795 char *outptr = out;
2796 char *inptr = in;
2797 char *ch1, *ch2, *env;
2798 ssize_t nchr = OPT_LEN_MAX;
2799 size_t envlen;
2800
2801 if (strlen(opt) + 1 > OPT_LEN_MAX) {
2802 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
2803 return NULL;
2804 }
2805
2806 in[OPT_LEN_MAX] = '\0';
2807 strncpy(in, opt, OPT_LEN_MAX);
2808
2809 while (*inptr && nchr > 0) {
2810 if (inptr[0] == '$' && inptr[1] == '{') {
2811 ch2 = strchr(inptr, '}');
2812 if (ch2 && inptr+1 < ch2) {
2813 ch1 = inptr+2;
2814 inptr = ch2+1;
2815 *ch2 = '\0';
2816
2817 env = getenv(ch1);
2818 if (env) {
2819 envlen = strlen(env);
2820 if (envlen <= nchr) {
2821 memcpy(outptr, env, envlen);
2822 outptr += envlen;
2823 nchr -= envlen;
2824 }
2825 }
2826
2827 continue;
2828 }
2829 }
2830
2831 *outptr++ = *inptr++;
2832 --nchr;
2833 }
2834
2835 *outptr = '\0';
2836 return strdup(out);
892a6ffc
JA		 2837}
2838
74929ac2
JA		 2839/*
2840 * Look for reserved variable names and replace them with real values
2841 */
2842static char *fio_keyword_replace(char *opt)
2843{
2844 char *s;
2845 int i;
d0c814ec 2846 int docalc = 0;
74929ac2
JA		 2847
2848 for (i = 0; fio_keywords[i].word != NULL; i++) {
2849 struct fio_keyword *kw = &fio_keywords[i];
2850
2851 while ((s = strstr(opt, kw->word)) != NULL) {
2852 char *new = malloc(strlen(opt) + 1);
2853 char *o_org = opt;
2854 int olen = s - opt;
2855 int len;
2856
2857 /*
2858 * Copy part of the string before the keyword and
2859 * sprintf() the replacement after it.
2860 */
2861 memcpy(new, opt, olen);
2862 len = sprintf(new + olen, "%s", kw->replace);
2863
2864 /*
2865 * If there's more in the original string, copy that
2866 * in too
2867 */
2868 opt += strlen(kw->word) + olen;
2869 if (strlen(opt))
2870 memcpy(new + olen + len, opt, opt - o_org - 1);
2871
2872 /*
2873 * replace opt and free the old opt
2874 */
2875 opt = new;
d0c814ec 2876 free(o_org);
7a958bd5 2877
d0c814ec 2878 docalc = 1;
74929ac2
JA		 2879 }
2880 }
2881
d0c814ec
SL		 2882 /*
2883 * Check for potential math and invoke bc, if possible
2884 */
2885 if (docalc)
2886 opt = bc_calc(opt);
2887
7a958bd5 2888 return opt;
74929ac2
JA		 2889}
2890
d0c814ec
SL		 2891static char **dup_and_sub_options(char **opts, int num_opts)
2892{
2893 int i;
2894 char **opts_copy = malloc(num_opts * sizeof(*opts));
2895 for (i = 0; i < num_opts; i++) {
2896 opts_copy[i] = option_dup_subs(opts[i]);
2897 if (!opts_copy[i])
2898 continue;
2899 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
2900 }
2901 return opts_copy;
2902}
2903
3b8b7135 2904int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
214e1eca 2905{
de890a1e 2906 int i, ret, unknown;
d0c814ec 2907 char **opts_copy;
3b8b7135
JA		 2908
2909 sort_options(opts, options, num_opts);
d0c814ec 2910 opts_copy = dup_and_sub_options(opts, num_opts);
3b8b7135 2911
de890a1e
SL		 2912 for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
2913 struct fio_option *o;
2914 int newret = parse_option(opts_copy[i], opts[i], options, &o,
2915 td);
d0c814ec 2916
de890a1e
SL		 2917 if (opts_copy[i]) {
2918 if (newret && !o) {
2919 unknown++;
2920 continue;
2921 }
d0c814ec 2922 free(opts_copy[i]);
de890a1e
SL		 2923 opts_copy[i] = NULL;
2924 }
2925
2926 ret |= newret;
2927 }
2928
2929 if (unknown) {
2930 ret |= ioengine_load(td);
2931 if (td->eo) {
2932 sort_options(opts_copy, td->io_ops->options, num_opts);
2933 opts = opts_copy;
2934 }
2935 for (i = 0; i < num_opts; i++) {
2936 struct fio_option *o = NULL;
2937 int newret = 1;
2938 if (!opts_copy[i])
2939 continue;
2940
2941 if (td->eo)
2942 newret = parse_option(opts_copy[i], opts[i],
2943 td->io_ops->options, &o,
2944 td->eo);
2945
2946 ret |= newret;
2947 if (!o)
2948 log_err("Bad option <%s>\n", opts[i]);
2949
2950 free(opts_copy[i]);
2951 opts_copy[i] = NULL;
2952 }
74929ac2 2953 }
3b8b7135 2954
d0c814ec 2955 free(opts_copy);
3b8b7135 2956 return ret;
214e1eca
JA		 2957}
2958
2959int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
2960{
07b3232d 2961 return parse_cmd_option(opt, val, options, td);
214e1eca
JA		 2962}
2963
de890a1e
SL		 2964int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
2965 char *val)
2966{
2967 return parse_cmd_option(opt, val, td->io_ops->options, td);
2968}
2969
214e1eca
JA		 2970void fio_fill_default_options(struct thread_data *td)
2971{
2972 fill_default_options(td, options);
2973}
2974
2975int fio_show_option_help(const char *opt)
2976{
07b3232d 2977 return show_cmd_help(options, opt);
214e1eca 2978}
d23bb327 2979
de890a1e 2980void options_mem_dupe(void *data, struct fio_option *options)
d23bb327 2981{
de890a1e 2982 struct fio_option *o;
d23bb327 2983 char **ptr;
d23bb327 2984
de890a1e
SL		 2985 for (o = &options[0]; o->name; o++) {
2986 if (o->type != FIO_OPT_STR_STORE)
d23bb327
JA		 2987 continue;
2988
de890a1e 2989 ptr = td_var(data, o->off1);
7e356b2d
JA		 2990 if (*ptr)
2991 *ptr = strdup(*ptr);
d23bb327
JA		 2992 }
2993}
2994
de890a1e
SL		 2995/*
2996 * dupe FIO_OPT_STR_STORE options
2997 */
2998void fio_options_mem_dupe(struct thread_data *td)
2999{
3000 options_mem_dupe(&td->o, options);
1647f592
JA		 3001
3002 if (td->eo && td->io_ops) {
de890a1e 3003 void *oldeo = td->eo;
1647f592 3004
de890a1e
SL		 3005 td->eo = malloc(td->io_ops->option_struct_size);
3006 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
3007 options_mem_dupe(td->eo, td->io_ops->options);
3008 }
3009}
3010
d6978a32
JA		 3011unsigned int fio_get_kb_base(void *data)
3012{
3013 struct thread_data *td = data;
3014 unsigned int kb_base = 0;
3015
3016 if (td)
3017 kb_base = td->o.kb_base;
3018 if (!kb_base)
3019 kb_base = 1024;
3020
3021 return kb_base;
3022}
9f988e2e 3023
07b3232d 3024int add_option(struct fio_option *o)
9f988e2e 3025{
07b3232d
JA		 3026 struct fio_option *__o;
3027 int opt_index = 0;
3028
3029 __o = options;
3030 while (__o->name) {
3031 opt_index++;
3032 __o++;
3033 }
3034
3035 memcpy(&options[opt_index], o, sizeof(*o));
3036 return 0;
9f988e2e 3037}
e2de69da 3038
07b3232d 3039void invalidate_profile_options(const char *prof_name)
e2de69da 3040{
07b3232d 3041 struct fio_option *o;
e2de69da 3042
07b3232d
JA		 3043 o = options;
3044 while (o->name) {
3045 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
3046 o->type = FIO_OPT_INVALID;
3047 o->prof_name = NULL;
3048 }
3049 o++;
e2de69da
JA		 3050 }
3051}
f5b6bb85
JA		 3052
3053void add_opt_posval(const char *optname, const char *ival, const char *help)
3054{
3055 struct fio_option *o;
3056 unsigned int i;
3057
3058 o = find_option(options, optname);
3059 if (!o)
3060 return;
3061
3062 for (i = 0; i < PARSE_MAX_VP; i++) {
3063 if (o->posval[i].ival)
3064 continue;
3065
3066 o->posval[i].ival = ival;
3067 o->posval[i].help = help;
3068 break;
3069 }
3070}
3071
3072void del_opt_posval(const char *optname, const char *ival)
3073{
3074 struct fio_option *o;
3075 unsigned int i;
3076
3077 o = find_option(options, optname);
3078 if (!o)
3079 return;
3080
3081 for (i = 0; i < PARSE_MAX_VP; i++) {
3082 if (!o->posval[i].ival)
3083 continue;
3084 if (strcmp(o->posval[i].ival, ival))
3085 continue;
3086
3087 o->posval[i].ival = NULL;
3088 o->posval[i].help = NULL;
3089 }
3090}
7e356b2d
JA		 3091
3092void fio_options_free(struct thread_data *td)
3093{
3094 options_free(options, td);
de890a1e
SL		 3095 if (td->eo && td->io_ops && td->io_ops->options) {
3096 options_free(td->io_ops->options, td->eo);
3097 free(td->eo);
3098 td->eo = NULL;
3099 }
7e356b2d 3100}
fio - Flexible IO Tester