steadystate: make flags conform to usual fio standard
[fio.git] / options.c
1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <unistd.h>
4 #include <ctype.h>
5 #include <string.h>
6 #include <assert.h>
7 #include <libgen.h>
8 #include <fcntl.h>
9 #include <sys/types.h>
10 #include <sys/stat.h>
11 #include <netinet/in.h>
12
13 #include "fio.h"
14 #include "verify.h"
15 #include "parse.h"
16 #include "lib/fls.h"
17 #include "lib/pattern.h"
18 #include "options.h"
19 #include "optgroup.h"
20
21 char client_sockaddr_str[INET6_ADDRSTRLEN] = { 0 };
22
23 #define cb_data_to_td(data)     container_of(data, struct thread_data, o)
24
25 static struct pattern_fmt_desc fmt_desc[] = {
26         {
27                 .fmt   = "%o",
28                 .len   = FIELD_SIZE(struct io_u *, offset),
29                 .paste = paste_blockoff
30         }
31 };
32
33 /*
34  * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
35  */
36 static char *get_opt_postfix(const char *str)
37 {
38         char *p = strstr(str, ":");
39
40         if (!p)
41                 return NULL;
42
43         p++;
44         strip_blank_front(&p);
45         strip_blank_end(p);
46         return strdup(p);
47 }
48
49 static int bs_cmp(const void *p1, const void *p2)
50 {
51         const struct bssplit *bsp1 = p1;
52         const struct bssplit *bsp2 = p2;
53
54         return (int) bsp1->perc - (int) bsp2->perc;
55 }
56
57 struct split {
58         unsigned int nr;
59         unsigned int val1[ZONESPLIT_MAX];
60         unsigned long long val2[ZONESPLIT_MAX];
61 };
62
63 static int split_parse_ddir(struct thread_options *o, struct split *split,
64                             enum fio_ddir ddir, char *str, bool absolute)
65 {
66         unsigned long long perc;
67         unsigned int i;
68         long long val;
69         char *fname;
70
71         split->nr = 0;
72
73         i = 0;
74         while ((fname = strsep(&str, ":")) != NULL) {
75                 char *perc_str;
76
77                 if (!strlen(fname))
78                         break;
79
80                 perc_str = strstr(fname, "/");
81                 if (perc_str) {
82                         *perc_str = '\0';
83                         perc_str++;
84                         if (absolute) {
85                                 if (str_to_decimal(perc_str, &val, 1, o, 0, 0)) {
86                                         log_err("fio: split conversion failed\n");
87                                         return 1;
88                                 }
89                                 perc = val;
90                         } else {
91                                 perc = atoi(perc_str);
92                                 if (perc > 100)
93                                         perc = 100;
94                                 else if (!perc)
95                                         perc = -1U;
96                         }
97                 } else {
98                         if (absolute)
99                                 perc = 0;
100                         else
101                                 perc = -1U;
102                 }
103
104                 if (str_to_decimal(fname, &val, 1, o, 0, 0)) {
105                         log_err("fio: split conversion failed\n");
106                         return 1;
107                 }
108
109                 split->val1[i] = val;
110                 split->val2[i] = perc;
111                 i++;
112                 if (i == ZONESPLIT_MAX)
113                         break;
114         }
115
116         split->nr = i;
117         return 0;
118 }
119
120 static int bssplit_ddir(struct thread_options *o, enum fio_ddir ddir, char *str,
121                         bool data)
122 {
123         unsigned int i, perc, perc_missing;
124         unsigned int max_bs, min_bs;
125         struct split split;
126
127         memset(&split, 0, sizeof(split));
128
129         if (split_parse_ddir(o, &split, ddir, str, data))
130                 return 1;
131         if (!split.nr)
132                 return 0;
133
134         max_bs = 0;
135         min_bs = -1;
136         o->bssplit[ddir] = malloc(split.nr * sizeof(struct bssplit));
137         o->bssplit_nr[ddir] = split.nr;
138         for (i = 0; i < split.nr; i++) {
139                 if (split.val1[i] > max_bs)
140                         max_bs = split.val1[i];
141                 if (split.val1[i] < min_bs)
142                         min_bs = split.val1[i];
143
144                 o->bssplit[ddir][i].bs = split.val1[i];
145                 o->bssplit[ddir][i].perc =split.val2[i];
146         }
147
148         /*
149          * Now check if the percentages add up, and how much is missing
150          */
151         perc = perc_missing = 0;
152         for (i = 0; i < o->bssplit_nr[ddir]; i++) {
153                 struct bssplit *bsp = &o->bssplit[ddir][i];
154
155                 if (bsp->perc == -1U)
156                         perc_missing++;
157                 else
158                         perc += bsp->perc;
159         }
160
161         if (perc > 100 && perc_missing > 1) {
162                 log_err("fio: bssplit percentages add to more than 100%%\n");
163                 free(o->bssplit[ddir]);
164                 o->bssplit[ddir] = NULL;
165                 return 1;
166         }
167
168         /*
169          * If values didn't have a percentage set, divide the remains between
170          * them.
171          */
172         if (perc_missing) {
173                 if (perc_missing == 1 && o->bssplit_nr[ddir] == 1)
174                         perc = 100;
175                 for (i = 0; i < o->bssplit_nr[ddir]; i++) {
176                         struct bssplit *bsp = &o->bssplit[ddir][i];
177
178                         if (bsp->perc == -1U)
179                                 bsp->perc = (100 - perc) / perc_missing;
180                 }
181         }
182
183         o->min_bs[ddir] = min_bs;
184         o->max_bs[ddir] = max_bs;
185
186         /*
187          * now sort based on percentages, for ease of lookup
188          */
189         qsort(o->bssplit[ddir], o->bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
190         return 0;
191 }
192
193 typedef int (split_parse_fn)(struct thread_options *, enum fio_ddir, char *, bool);
194
195 static int str_split_parse(struct thread_data *td, char *str,
196                            split_parse_fn *fn, bool data)
197 {
198         char *odir, *ddir;
199         int ret = 0;
200
201         odir = strchr(str, ',');
202         if (odir) {
203                 ddir = strchr(odir + 1, ',');
204                 if (ddir) {
205                         ret = fn(&td->o, DDIR_TRIM, ddir + 1, data);
206                         if (!ret)
207                                 *ddir = '\0';
208                 } else {
209                         char *op;
210
211                         op = strdup(odir + 1);
212                         ret = fn(&td->o, DDIR_TRIM, op, data);
213
214                         free(op);
215                 }
216                 if (!ret)
217                         ret = fn(&td->o, DDIR_WRITE, odir + 1, data);
218                 if (!ret) {
219                         *odir = '\0';
220                         ret = fn(&td->o, DDIR_READ, str, data);
221                 }
222         } else {
223                 char *op;
224
225                 op = strdup(str);
226                 ret = fn(&td->o, DDIR_WRITE, op, data);
227                 free(op);
228
229                 if (!ret) {
230                         op = strdup(str);
231                         ret = fn(&td->o, DDIR_TRIM, op, data);
232                         free(op);
233                 }
234                 if (!ret)
235                         ret = fn(&td->o, DDIR_READ, str, data);
236         }
237
238         return ret;
239 }
240
241 static int str_bssplit_cb(void *data, const char *input)
242 {
243         struct thread_data *td = cb_data_to_td(data);
244         char *str, *p;
245         int ret = 0;
246
247         p = str = strdup(input);
248
249         strip_blank_front(&str);
250         strip_blank_end(str);
251
252         ret = str_split_parse(td, str, bssplit_ddir, false);
253
254         if (parse_dryrun()) {
255                 int i;
256
257                 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
258                         free(td->o.bssplit[i]);
259                         td->o.bssplit[i] = NULL;
260                         td->o.bssplit_nr[i] = 0;
261                 }
262         }
263
264         free(p);
265         return ret;
266 }
267
268 static int str2error(char *str)
269 {
270         const char *err[] = { "EPERM", "ENOENT", "ESRCH", "EINTR", "EIO",
271                             "ENXIO", "E2BIG", "ENOEXEC", "EBADF",
272                             "ECHILD", "EAGAIN", "ENOMEM", "EACCES",
273                             "EFAULT", "ENOTBLK", "EBUSY", "EEXIST",
274                             "EXDEV", "ENODEV", "ENOTDIR", "EISDIR",
275                             "EINVAL", "ENFILE", "EMFILE", "ENOTTY",
276                             "ETXTBSY","EFBIG", "ENOSPC", "ESPIPE",
277                             "EROFS","EMLINK", "EPIPE", "EDOM", "ERANGE" };
278         int i = 0, num = sizeof(err) / sizeof(char *);
279
280         while (i < num) {
281                 if (!strcmp(err[i], str))
282                         return i + 1;
283                 i++;
284         }
285         return 0;
286 }
287
288 static int ignore_error_type(struct thread_data *td, enum error_type_bit etype,
289                                 char *str)
290 {
291         unsigned int i;
292         int *error;
293         char *fname;
294
295         if (etype >= ERROR_TYPE_CNT) {
296                 log_err("Illegal error type\n");
297                 return 1;
298         }
299
300         td->o.ignore_error_nr[etype] = 4;
301         error = calloc(4, sizeof(int));
302
303         i = 0;
304         while ((fname = strsep(&str, ":")) != NULL) {
305
306                 if (!strlen(fname))
307                         break;
308
309                 /*
310                  * grow struct buffer, if needed
311                  */
312                 if (i == td->o.ignore_error_nr[etype]) {
313                         td->o.ignore_error_nr[etype] <<= 1;
314                         error = realloc(error, td->o.ignore_error_nr[etype]
315                                                   * sizeof(int));
316                 }
317                 if (fname[0] == 'E') {
318                         error[i] = str2error(fname);
319                 } else {
320                         error[i] = atoi(fname);
321                         if (error[i] < 0)
322                                 error[i] = -error[i];
323                 }
324                 if (!error[i]) {
325                         log_err("Unknown error %s, please use number value\n",
326                                   fname);
327                         td->o.ignore_error_nr[etype] = 0;
328                         free(error);
329                         return 1;
330                 }
331                 i++;
332         }
333         if (i) {
334                 td->o.continue_on_error |= 1 << etype;
335                 td->o.ignore_error_nr[etype] = i;
336                 td->o.ignore_error[etype] = error;
337         } else {
338                 td->o.ignore_error_nr[etype] = 0;
339                 free(error);
340         }
341
342         return 0;
343
344 }
345
346 static int str_ignore_error_cb(void *data, const char *input)
347 {
348         struct thread_data *td = cb_data_to_td(data);
349         char *str, *p, *n;
350         int ret = 1;
351         enum error_type_bit type = 0;
352
353         if (parse_dryrun())
354                 return 0;
355
356         p = str = strdup(input);
357
358         strip_blank_front(&str);
359         strip_blank_end(str);
360
361         while (p) {
362                 n = strchr(p, ',');
363                 if (n)
364                         *n++ = '\0';
365                 ret = ignore_error_type(td, type, p);
366                 if (ret)
367                         break;
368                 p = n;
369                 type++;
370         }
371         free(str);
372         return ret;
373 }
374
375 static int str_rw_cb(void *data, const char *str)
376 {
377         struct thread_data *td = cb_data_to_td(data);
378         struct thread_options *o = &td->o;
379         char *nr;
380
381         if (parse_dryrun())
382                 return 0;
383
384         o->ddir_seq_nr = 1;
385         o->ddir_seq_add = 0;
386
387         nr = get_opt_postfix(str);
388         if (!nr)
389                 return 0;
390
391         if (td_random(td))
392                 o->ddir_seq_nr = atoi(nr);
393         else {
394                 long long val;
395
396                 if (str_to_decimal(nr, &val, 1, o, 0, 0)) {
397                         log_err("fio: rw postfix parsing failed\n");
398                         free(nr);
399                         return 1;
400                 }
401
402                 o->ddir_seq_add = val;
403         }
404
405         free(nr);
406         return 0;
407 }
408
409 static int str_mem_cb(void *data, const char *mem)
410 {
411         struct thread_data *td = cb_data_to_td(data);
412
413         if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP ||
414             td->o.mem_type == MEM_MMAPSHARED)
415                 td->o.mmapfile = get_opt_postfix(mem);
416
417         return 0;
418 }
419
420 static int fio_clock_source_cb(void *data, const char *str)
421 {
422         struct thread_data *td = cb_data_to_td(data);
423
424         fio_clock_source = td->o.clocksource;
425         fio_clock_source_set = 1;
426         fio_clock_init();
427         return 0;
428 }
429
430 static int str_rwmix_read_cb(void *data, unsigned long long *val)
431 {
432         struct thread_data *td = cb_data_to_td(data);
433
434         td->o.rwmix[DDIR_READ] = *val;
435         td->o.rwmix[DDIR_WRITE] = 100 - *val;
436         return 0;
437 }
438
439 static int str_rwmix_write_cb(void *data, unsigned long long *val)
440 {
441         struct thread_data *td = cb_data_to_td(data);
442
443         td->o.rwmix[DDIR_WRITE] = *val;
444         td->o.rwmix[DDIR_READ] = 100 - *val;
445         return 0;
446 }
447
448 static int str_exitall_cb(void)
449 {
450         exitall_on_terminate = 1;
451         return 0;
452 }
453
454 #ifdef FIO_HAVE_CPU_AFFINITY
455 int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu_index)
456 {
457         unsigned int i, index, cpus_in_mask;
458         const long max_cpu = cpus_online();
459
460         cpus_in_mask = fio_cpu_count(mask);
461         cpu_index = cpu_index % cpus_in_mask;
462
463         index = 0;
464         for (i = 0; i < max_cpu; i++) {
465                 if (!fio_cpu_isset(mask, i))
466                         continue;
467
468                 if (cpu_index != index)
469                         fio_cpu_clear(mask, i);
470
471                 index++;
472         }
473
474         return fio_cpu_count(mask);
475 }
476
477 static int str_cpumask_cb(void *data, unsigned long long *val)
478 {
479         struct thread_data *td = cb_data_to_td(data);
480         unsigned int i;
481         long max_cpu;
482         int ret;
483
484         if (parse_dryrun())
485                 return 0;
486
487         ret = fio_cpuset_init(&td->o.cpumask);
488         if (ret < 0) {
489                 log_err("fio: cpuset_init failed\n");
490                 td_verror(td, ret, "fio_cpuset_init");
491                 return 1;
492         }
493
494         max_cpu = cpus_online();
495
496         for (i = 0; i < sizeof(int) * 8; i++) {
497                 if ((1 << i) & *val) {
498                         if (i >= max_cpu) {
499                                 log_err("fio: CPU %d too large (max=%ld)\n", i,
500                                                                 max_cpu - 1);
501                                 return 1;
502                         }
503                         dprint(FD_PARSE, "set cpu allowed %d\n", i);
504                         fio_cpu_set(&td->o.cpumask, i);
505                 }
506         }
507
508         return 0;
509 }
510
511 static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
512                             const char *input)
513 {
514         char *cpu, *str, *p;
515         long max_cpu;
516         int ret = 0;
517
518         ret = fio_cpuset_init(mask);
519         if (ret < 0) {
520                 log_err("fio: cpuset_init failed\n");
521                 td_verror(td, ret, "fio_cpuset_init");
522                 return 1;
523         }
524
525         p = str = strdup(input);
526
527         strip_blank_front(&str);
528         strip_blank_end(str);
529
530         max_cpu = cpus_online();
531
532         while ((cpu = strsep(&str, ",")) != NULL) {
533                 char *str2, *cpu2;
534                 int icpu, icpu2;
535
536                 if (!strlen(cpu))
537                         break;
538
539                 str2 = cpu;
540                 icpu2 = -1;
541                 while ((cpu2 = strsep(&str2, "-")) != NULL) {
542                         if (!strlen(cpu2))
543                                 break;
544
545                         icpu2 = atoi(cpu2);
546                 }
547
548                 icpu = atoi(cpu);
549                 if (icpu2 == -1)
550                         icpu2 = icpu;
551                 while (icpu <= icpu2) {
552                         if (icpu >= FIO_MAX_CPUS) {
553                                 log_err("fio: your OS only supports up to"
554                                         " %d CPUs\n", (int) FIO_MAX_CPUS);
555                                 ret = 1;
556                                 break;
557                         }
558                         if (icpu >= max_cpu) {
559                                 log_err("fio: CPU %d too large (max=%ld)\n",
560                                                         icpu, max_cpu - 1);
561                                 ret = 1;
562                                 break;
563                         }
564
565                         dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
566                         fio_cpu_set(mask, icpu);
567                         icpu++;
568                 }
569                 if (ret)
570                         break;
571         }
572
573         free(p);
574         return ret;
575 }
576
577 static int str_cpus_allowed_cb(void *data, const char *input)
578 {
579         struct thread_data *td = cb_data_to_td(data);
580
581         if (parse_dryrun())
582                 return 0;
583
584         return set_cpus_allowed(td, &td->o.cpumask, input);
585 }
586
587 static int str_verify_cpus_allowed_cb(void *data, const char *input)
588 {
589         struct thread_data *td = cb_data_to_td(data);
590
591         if (parse_dryrun())
592                 return 0;
593
594         return set_cpus_allowed(td, &td->o.verify_cpumask, input);
595 }
596
597 #ifdef CONFIG_ZLIB
598 static int str_log_cpus_allowed_cb(void *data, const char *input)
599 {
600         struct thread_data *td = cb_data_to_td(data);
601
602         if (parse_dryrun())
603                 return 0;
604
605         return set_cpus_allowed(td, &td->o.log_gz_cpumask, input);
606 }
607 #endif /* CONFIG_ZLIB */
608
609 #endif /* FIO_HAVE_CPU_AFFINITY */
610
611 #ifdef CONFIG_LIBNUMA
612 static int str_numa_cpunodes_cb(void *data, char *input)
613 {
614         struct thread_data *td = cb_data_to_td(data);
615         struct bitmask *verify_bitmask;
616
617         if (parse_dryrun())
618                 return 0;
619
620         /* numa_parse_nodestring() parses a character string list
621          * of nodes into a bit mask. The bit mask is allocated by
622          * numa_allocate_nodemask(), so it should be freed by
623          * numa_free_nodemask().
624          */
625         verify_bitmask = numa_parse_nodestring(input);
626         if (verify_bitmask == NULL) {
627                 log_err("fio: numa_parse_nodestring failed\n");
628                 td_verror(td, 1, "str_numa_cpunodes_cb");
629                 return 1;
630         }
631         numa_free_nodemask(verify_bitmask);
632
633         td->o.numa_cpunodes = strdup(input);
634         return 0;
635 }
636
637 static int str_numa_mpol_cb(void *data, char *input)
638 {
639         struct thread_data *td = cb_data_to_td(data);
640         const char * const policy_types[] =
641                 { "default", "prefer", "bind", "interleave", "local", NULL };
642         int i;
643         char *nodelist;
644         struct bitmask *verify_bitmask;
645
646         if (parse_dryrun())
647                 return 0;
648
649         nodelist = strchr(input, ':');
650         if (nodelist) {
651                 /* NUL-terminate mode */
652                 *nodelist++ = '\0';
653         }
654
655         for (i = 0; i <= MPOL_LOCAL; i++) {
656                 if (!strcmp(input, policy_types[i])) {
657                         td->o.numa_mem_mode = i;
658                         break;
659                 }
660         }
661         if (i > MPOL_LOCAL) {
662                 log_err("fio: memory policy should be: default, prefer, bind, interleave, local\n");
663                 goto out;
664         }
665
666         switch (td->o.numa_mem_mode) {
667         case MPOL_PREFERRED:
668                 /*
669                  * Insist on a nodelist of one node only
670                  */
671                 if (nodelist) {
672                         char *rest = nodelist;
673                         while (isdigit(*rest))
674                                 rest++;
675                         if (*rest) {
676                                 log_err("fio: one node only for \'prefer\'\n");
677                                 goto out;
678                         }
679                 } else {
680                         log_err("fio: one node is needed for \'prefer\'\n");
681                         goto out;
682                 }
683                 break;
684         case MPOL_INTERLEAVE:
685                 /*
686                  * Default to online nodes with memory if no nodelist
687                  */
688                 if (!nodelist)
689                         nodelist = strdup("all");
690                 break;
691         case MPOL_LOCAL:
692         case MPOL_DEFAULT:
693                 /*
694                  * Don't allow a nodelist
695                  */
696                 if (nodelist) {
697                         log_err("fio: NO nodelist for \'local\'\n");
698                         goto out;
699                 }
700                 break;
701         case MPOL_BIND:
702                 /*
703                  * Insist on a nodelist
704                  */
705                 if (!nodelist) {
706                         log_err("fio: a nodelist is needed for \'bind\'\n");
707                         goto out;
708                 }
709                 break;
710         }
711
712
713         /* numa_parse_nodestring() parses a character string list
714          * of nodes into a bit mask. The bit mask is allocated by
715          * numa_allocate_nodemask(), so it should be freed by
716          * numa_free_nodemask().
717          */
718         switch (td->o.numa_mem_mode) {
719         case MPOL_PREFERRED:
720                 td->o.numa_mem_prefer_node = atoi(nodelist);
721                 break;
722         case MPOL_INTERLEAVE:
723         case MPOL_BIND:
724                 verify_bitmask = numa_parse_nodestring(nodelist);
725                 if (verify_bitmask == NULL) {
726                         log_err("fio: numa_parse_nodestring failed\n");
727                         td_verror(td, 1, "str_numa_memnodes_cb");
728                         return 1;
729                 }
730                 td->o.numa_memnodes = strdup(nodelist);
731                 numa_free_nodemask(verify_bitmask);
732
733                 break;
734         case MPOL_LOCAL:
735         case MPOL_DEFAULT:
736         default:
737                 break;
738         }
739
740         return 0;
741 out:
742         return 1;
743 }
744 #endif
745
746 static int str_fst_cb(void *data, const char *str)
747 {
748         struct thread_data *td = cb_data_to_td(data);
749         double val;
750         bool done = false;
751         char *nr;
752
753         td->file_service_nr = 1;
754
755         switch (td->o.file_service_type) {
756         case FIO_FSERVICE_RANDOM:
757         case FIO_FSERVICE_RR:
758         case FIO_FSERVICE_SEQ:
759                 nr = get_opt_postfix(str);
760                 if (nr) {
761                         td->file_service_nr = atoi(nr);
762                         free(nr);
763                 }
764                 done = true;
765                 break;
766         case FIO_FSERVICE_ZIPF:
767                 val = FIO_DEF_ZIPF;
768                 break;
769         case FIO_FSERVICE_PARETO:
770                 val = FIO_DEF_PARETO;
771                 break;
772         case FIO_FSERVICE_GAUSS:
773                 val = 0.0;
774                 break;
775         default:
776                 log_err("fio: bad file service type: %d\n", td->o.file_service_type);
777                 return 1;
778         }
779
780         if (done)
781                 return 0;
782
783         nr = get_opt_postfix(str);
784         if (nr && !str_to_float(nr, &val, 0)) {
785                 log_err("fio: file service type random postfix parsing failed\n");
786                 free(nr);
787                 return 1;
788         }
789
790         free(nr);
791
792         switch (td->o.file_service_type) {
793         case FIO_FSERVICE_ZIPF:
794                 if (val == 1.00) {
795                         log_err("fio: zipf theta must be different than 1.0\n");
796                         return 1;
797                 }
798                 if (parse_dryrun())
799                         return 0;
800                 td->zipf_theta = val;
801                 break;
802         case FIO_FSERVICE_PARETO:
803                 if (val <= 0.00 || val >= 1.00) {
804                           log_err("fio: pareto input out of range (0 < input < 1.0)\n");
805                           return 1;
806                 }
807                 if (parse_dryrun())
808                         return 0;
809                 td->pareto_h = val;
810                 break;
811         case FIO_FSERVICE_GAUSS:
812                 if (val < 0.00 || val >= 100.00) {
813                           log_err("fio: normal deviation out of range (0 <= input < 100.0)\n");
814                           return 1;
815                 }
816                 if (parse_dryrun())
817                         return 0;
818                 td->gauss_dev = val;
819                 break;
820         }
821
822         return 0;
823 }
824
825 #ifdef CONFIG_SYNC_FILE_RANGE
826 static int str_sfr_cb(void *data, const char *str)
827 {
828         struct thread_data *td = cb_data_to_td(data);
829         char *nr = get_opt_postfix(str);
830
831         td->sync_file_range_nr = 1;
832         if (nr) {
833                 td->sync_file_range_nr = atoi(nr);
834                 free(nr);
835         }
836
837         return 0;
838 }
839 #endif
840
841 static int zone_split_ddir(struct thread_options *o, enum fio_ddir ddir,
842                            char *str, bool absolute)
843 {
844         unsigned int i, perc, perc_missing, sperc, sperc_missing;
845         struct split split;
846
847         memset(&split, 0, sizeof(split));
848
849         if (split_parse_ddir(o, &split, ddir, str, absolute))
850                 return 1;
851         if (!split.nr)
852                 return 0;
853
854         o->zone_split[ddir] = malloc(split.nr * sizeof(struct zone_split));
855         o->zone_split_nr[ddir] = split.nr;
856         for (i = 0; i < split.nr; i++) {
857                 o->zone_split[ddir][i].access_perc = split.val1[i];
858                 if (absolute)
859                         o->zone_split[ddir][i].size = split.val2[i];
860                 else
861                         o->zone_split[ddir][i].size_perc = split.val2[i];
862         }
863
864         /*
865          * Now check if the percentages add up, and how much is missing
866          */
867         perc = perc_missing = 0;
868         sperc = sperc_missing = 0;
869         for (i = 0; i < o->zone_split_nr[ddir]; i++) {
870                 struct zone_split *zsp = &o->zone_split[ddir][i];
871
872                 if (zsp->access_perc == (uint8_t) -1U)
873                         perc_missing++;
874                 else
875                         perc += zsp->access_perc;
876
877                 if (!absolute) {
878                         if (zsp->size_perc == (uint8_t) -1U)
879                                 sperc_missing++;
880                         else
881                                 sperc += zsp->size_perc;
882                 }
883         }
884
885         if (perc > 100 || sperc > 100) {
886                 log_err("fio: zone_split percentages add to more than 100%%\n");
887                 free(o->zone_split[ddir]);
888                 o->zone_split[ddir] = NULL;
889                 return 1;
890         }
891         if (perc < 100) {
892                 log_err("fio: access percentage don't add up to 100 for zoned "
893                         "random distribution (got=%u)\n", perc);
894                 free(o->zone_split[ddir]);
895                 o->zone_split[ddir] = NULL;
896                 return 1;
897         }
898
899         /*
900          * If values didn't have a percentage set, divide the remains between
901          * them.
902          */
903         if (perc_missing) {
904                 if (perc_missing == 1 && o->zone_split_nr[ddir] == 1)
905                         perc = 100;
906                 for (i = 0; i < o->zone_split_nr[ddir]; i++) {
907                         struct zone_split *zsp = &o->zone_split[ddir][i];
908
909                         if (zsp->access_perc == (uint8_t) -1U)
910                                 zsp->access_perc = (100 - perc) / perc_missing;
911                 }
912         }
913         if (sperc_missing) {
914                 if (sperc_missing == 1 && o->zone_split_nr[ddir] == 1)
915                         sperc = 100;
916                 for (i = 0; i < o->zone_split_nr[ddir]; i++) {
917                         struct zone_split *zsp = &o->zone_split[ddir][i];
918
919                         if (zsp->size_perc == (uint8_t) -1U)
920                                 zsp->size_perc = (100 - sperc) / sperc_missing;
921                 }
922         }
923
924         return 0;
925 }
926
927 static void __td_zone_gen_index(struct thread_data *td, enum fio_ddir ddir)
928 {
929         unsigned int i, j, sprev, aprev;
930         uint64_t sprev_sz;
931
932         td->zone_state_index[ddir] = malloc(sizeof(struct zone_split_index) * 100);
933
934         sprev_sz = sprev = aprev = 0;
935         for (i = 0; i < td->o.zone_split_nr[ddir]; i++) {
936                 struct zone_split *zsp = &td->o.zone_split[ddir][i];
937
938                 for (j = aprev; j < aprev + zsp->access_perc; j++) {
939                         struct zone_split_index *zsi = &td->zone_state_index[ddir][j];
940
941                         zsi->size_perc = sprev + zsp->size_perc;
942                         zsi->size_perc_prev = sprev;
943
944                         zsi->size = sprev_sz + zsp->size;
945                         zsi->size_prev = sprev_sz;
946                 }
947
948                 aprev += zsp->access_perc;
949                 sprev += zsp->size_perc;
950                 sprev_sz += zsp->size;
951         }
952 }
953
954 /*
955  * Generate state table for indexes, so we don't have to do it inline from
956  * the hot IO path
957  */
958 static void td_zone_gen_index(struct thread_data *td)
959 {
960         int i;
961
962         td->zone_state_index = malloc(DDIR_RWDIR_CNT *
963                                         sizeof(struct zone_split_index *));
964
965         for (i = 0; i < DDIR_RWDIR_CNT; i++)
966                 __td_zone_gen_index(td, i);
967 }
968
969 static int parse_zoned_distribution(struct thread_data *td, const char *input,
970                                     bool absolute)
971 {
972         const char *pre = absolute ? "zoned_abs:" : "zoned:";
973         char *str, *p;
974         int i, ret = 0;
975
976         p = str = strdup(input);
977
978         strip_blank_front(&str);
979         strip_blank_end(str);
980
981         /* We expect it to start like that, bail if not */
982         if (strncmp(str, pre, strlen(pre))) {
983                 log_err("fio: mismatch in zoned input <%s>\n", str);
984                 free(p);
985                 return 1;
986         }
987         str += strlen(pre);
988
989         ret = str_split_parse(td, str, zone_split_ddir, absolute);
990
991         free(p);
992
993         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
994                 int j;
995
996                 dprint(FD_PARSE, "zone ddir %d (nr=%u): \n", i, td->o.zone_split_nr[i]);
997
998                 for (j = 0; j < td->o.zone_split_nr[i]; j++) {
999                         struct zone_split *zsp = &td->o.zone_split[i][j];
1000
1001                         if (absolute) {
1002                                 dprint(FD_PARSE, "\t%d: %u/%llu\n", j,
1003                                                 zsp->access_perc,
1004                                                 (unsigned long long) zsp->size);
1005                         } else {
1006                                 dprint(FD_PARSE, "\t%d: %u/%u\n", j,
1007                                                 zsp->access_perc,
1008                                                 zsp->size_perc);
1009                         }
1010                 }
1011         }
1012
1013         if (parse_dryrun()) {
1014                 int i;
1015
1016                 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1017                         free(td->o.zone_split[i]);
1018                         td->o.zone_split[i] = NULL;
1019                         td->o.zone_split_nr[i] = 0;
1020                 }
1021
1022                 return ret;
1023         }
1024
1025         if (!ret)
1026                 td_zone_gen_index(td);
1027         else {
1028                 for (i = 0; i < DDIR_RWDIR_CNT; i++)
1029                         td->o.zone_split_nr[i] = 0;
1030         }
1031
1032         return ret;
1033 }
1034
1035 static int str_random_distribution_cb(void *data, const char *str)
1036 {
1037         struct thread_data *td = cb_data_to_td(data);
1038         double val;
1039         char *nr;
1040
1041         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
1042                 val = FIO_DEF_ZIPF;
1043         else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
1044                 val = FIO_DEF_PARETO;
1045         else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS)
1046                 val = 0.0;
1047         else if (td->o.random_distribution == FIO_RAND_DIST_ZONED)
1048                 return parse_zoned_distribution(td, str, false);
1049         else if (td->o.random_distribution == FIO_RAND_DIST_ZONED_ABS)
1050                 return parse_zoned_distribution(td, str, true);
1051         else
1052                 return 0;
1053
1054         nr = get_opt_postfix(str);
1055         if (nr && !str_to_float(nr, &val, 0)) {
1056                 log_err("fio: random postfix parsing failed\n");
1057                 free(nr);
1058                 return 1;
1059         }
1060
1061         free(nr);
1062
1063         if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
1064                 if (val == 1.00) {
1065                         log_err("fio: zipf theta must different than 1.0\n");
1066                         return 1;
1067                 }
1068                 if (parse_dryrun())
1069                         return 0;
1070                 td->o.zipf_theta.u.f = val;
1071         } else if (td->o.random_distribution == FIO_RAND_DIST_PARETO) {
1072                 if (val <= 0.00 || val >= 1.00) {
1073                         log_err("fio: pareto input out of range (0 < input < 1.0)\n");
1074                         return 1;
1075                 }
1076                 if (parse_dryrun())
1077                         return 0;
1078                 td->o.pareto_h.u.f = val;
1079         } else {
1080                 if (val < 0.00 || val >= 100.0) {
1081                         log_err("fio: normal deviation out of range (0 <= input < 100.0)\n");
1082                         return 1;
1083                 }
1084                 if (parse_dryrun())
1085                         return 0;
1086                 td->o.gauss_dev.u.f = val;
1087         }
1088
1089         return 0;
1090 }
1091
1092 static int str_steadystate_cb(void *data, const char *str)
1093 {
1094         struct thread_data *td = cb_data_to_td(data);
1095         double val;
1096         char *nr;
1097         char *pct;
1098         long long ll;
1099
1100         if (td->o.ss_state != FIO_SS_IOPS && td->o.ss_state != FIO_SS_IOPS_SLOPE &&
1101             td->o.ss_state != FIO_SS_BW && td->o.ss_state != FIO_SS_BW_SLOPE) {
1102                 /* should be impossible to get here */
1103                 log_err("fio: unknown steady state criterion\n");
1104                 return 1;
1105         }
1106
1107         nr = get_opt_postfix(str);
1108         if (!nr) {
1109                 log_err("fio: steadystate threshold must be specified in addition to criterion\n");
1110                 free(nr);
1111                 return 1;
1112         }
1113
1114         /* ENHANCEMENT Allow fio to understand size=10.2% and use here */
1115         pct = strstr(nr, "%");
1116         if (pct) {
1117                 *pct = '\0';
1118                 strip_blank_end(nr);
1119                 if (!str_to_float(nr, &val, 0)) {
1120                         log_err("fio: could not parse steadystate threshold percentage\n");
1121                         free(nr);
1122                         return 1;
1123                 }
1124
1125                 dprint(FD_PARSE, "set steady state threshold to %f%%\n", val);
1126                 free(nr);
1127                 if (parse_dryrun())
1128                         return 0;
1129
1130                 td->o.ss_state |= FIO_SS_PCT;
1131                 td->o.ss_limit.u.f = val;
1132         } else if (td->o.ss_state & FIO_SS_IOPS) {
1133                 if (!str_to_float(nr, &val, 0)) {
1134                         log_err("fio: steadystate IOPS threshold postfix parsing failed\n");
1135                         free(nr);
1136                         return 1;
1137                 }
1138
1139                 dprint(FD_PARSE, "set steady state IOPS threshold to %f\n", val);
1140                 free(nr);
1141                 if (parse_dryrun())
1142                         return 0;
1143
1144                 td->o.ss_limit.u.f = val;
1145         } else {        /* bandwidth criterion */
1146                 if (str_to_decimal(nr, &ll, 1, td, 0, 0)) {
1147                         log_err("fio: steadystate BW threshold postfix parsing failed\n");
1148                         free(nr);
1149                         return 1;
1150                 }
1151
1152                 dprint(FD_PARSE, "set steady state BW threshold to %lld\n", ll);
1153                 free(nr);
1154                 if (parse_dryrun())
1155                         return 0;
1156
1157                 td->o.ss_limit.u.f = (double) ll;
1158         }
1159
1160         td->ss.state = td->o.ss_state;
1161         return 0;
1162 }
1163
1164 /*
1165  * Return next name in the string. Files are separated with ':'. If the ':'
1166  * is escaped with a '\', then that ':' is part of the filename and does not
1167  * indicate a new file.
1168  */
1169 static char *get_next_name(char **ptr)
1170 {
1171         char *str = *ptr;
1172         char *p, *start;
1173
1174         if (!str || !strlen(str))
1175                 return NULL;
1176
1177         start = str;
1178         do {
1179                 /*
1180                  * No colon, we are done
1181                  */
1182                 p = strchr(str, ':');
1183                 if (!p) {
1184                         *ptr = NULL;
1185                         break;
1186                 }
1187
1188                 /*
1189                  * We got a colon, but it's the first character. Skip and
1190                  * continue
1191                  */
1192                 if (p == start) {
1193                         str = ++start;
1194                         continue;
1195                 }
1196
1197                 if (*(p - 1) != '\\') {
1198                         *p = '\0';
1199                         *ptr = p + 1;
1200                         break;
1201                 }
1202
1203                 memmove(p - 1, p, strlen(p) + 1);
1204                 str = p;
1205         } while (1);
1206
1207         return start;
1208 }
1209
1210
1211 static int get_max_name_idx(char *input)
1212 {
1213         unsigned int cur_idx;
1214         char *str, *p;
1215
1216         p = str = strdup(input);
1217         for (cur_idx = 0; ; cur_idx++)
1218                 if (get_next_name(&str) == NULL)
1219                         break;
1220
1221         free(p);
1222         return cur_idx;
1223 }
1224
1225 /*
1226  * Returns the directory at the index, indexes > entires will be
1227  * assigned via modulo division of the index
1228  */
1229 int set_name_idx(char *target, size_t tlen, char *input, int index,
1230                  bool unique_filename)
1231 {
1232         unsigned int cur_idx;
1233         int len;
1234         char *fname, *str, *p;
1235
1236         p = str = strdup(input);
1237
1238         index %= get_max_name_idx(input);
1239         for (cur_idx = 0; cur_idx <= index; cur_idx++)
1240                 fname = get_next_name(&str);
1241
1242         if (client_sockaddr_str[0] && unique_filename) {
1243                 len = snprintf(target, tlen, "%s/%s.", fname,
1244                                 client_sockaddr_str);
1245         } else
1246                 len = snprintf(target, tlen, "%s/", fname);
1247
1248         target[tlen - 1] = '\0';
1249         free(p);
1250
1251         return len;
1252 }
1253
1254 static int str_filename_cb(void *data, const char *input)
1255 {
1256         struct thread_data *td = cb_data_to_td(data);
1257         char *fname, *str, *p;
1258
1259         p = str = strdup(input);
1260
1261         strip_blank_front(&str);
1262         strip_blank_end(str);
1263
1264         /*
1265          * Ignore what we may already have from nrfiles option.
1266          */
1267         if (!td->files_index)
1268                 td->o.nr_files = 0;
1269
1270         while ((fname = get_next_name(&str)) != NULL) {
1271                 if (!strlen(fname))
1272                         break;
1273                 add_file(td, fname, 0, 1);
1274         }
1275
1276         free(p);
1277         return 0;
1278 }
1279
1280 static int str_directory_cb(void *data, const char fio_unused *unused)
1281 {
1282         struct thread_data *td = cb_data_to_td(data);
1283         struct stat sb;
1284         char *dirname, *str, *p;
1285         int ret = 0;
1286
1287         if (parse_dryrun())
1288                 return 0;
1289
1290         p = str = strdup(td->o.directory);
1291         while ((dirname = get_next_name(&str)) != NULL) {
1292                 if (lstat(dirname, &sb) < 0) {
1293                         ret = errno;
1294
1295                         log_err("fio: %s is not a directory\n", dirname);
1296                         td_verror(td, ret, "lstat");
1297                         goto out;
1298                 }
1299                 if (!S_ISDIR(sb.st_mode)) {
1300                         log_err("fio: %s is not a directory\n", dirname);
1301                         ret = 1;
1302                         goto out;
1303                 }
1304         }
1305
1306 out:
1307         free(p);
1308         return ret;
1309 }
1310
1311 static int str_opendir_cb(void *data, const char fio_unused *str)
1312 {
1313         struct thread_data *td = cb_data_to_td(data);
1314
1315         if (parse_dryrun())
1316                 return 0;
1317
1318         if (!td->files_index)
1319                 td->o.nr_files = 0;
1320
1321         return add_dir_files(td, td->o.opendir);
1322 }
1323
1324 static int str_buffer_pattern_cb(void *data, const char *input)
1325 {
1326         struct thread_data *td = cb_data_to_td(data);
1327         int ret;
1328
1329         /* FIXME: for now buffer pattern does not support formats */
1330         ret = parse_and_fill_pattern(input, strlen(input), td->o.buffer_pattern,
1331                                      MAX_PATTERN_SIZE, NULL, 0, NULL, NULL);
1332         if (ret < 0)
1333                 return 1;
1334
1335         assert(ret != 0);
1336         td->o.buffer_pattern_bytes = ret;
1337
1338         /*
1339          * If this job is doing any reading or has compression set,
1340          * ensure that we refill buffers for writes or we could be
1341          * invalidating the pattern through reads.
1342          */
1343         if (!td->o.compress_percentage && !td_read(td))
1344                 td->o.refill_buffers = 0;
1345         else
1346                 td->o.refill_buffers = 1;
1347
1348         td->o.scramble_buffers = 0;
1349         td->o.zero_buffers = 0;
1350
1351         return 0;
1352 }
1353
1354 static int str_buffer_compress_cb(void *data, unsigned long long *il)
1355 {
1356         struct thread_data *td = cb_data_to_td(data);
1357
1358         td->flags |= TD_F_COMPRESS;
1359         td->o.compress_percentage = *il;
1360         return 0;
1361 }
1362
1363 static int str_dedupe_cb(void *data, unsigned long long *il)
1364 {
1365         struct thread_data *td = cb_data_to_td(data);
1366
1367         td->flags |= TD_F_COMPRESS;
1368         td->o.dedupe_percentage = *il;
1369         td->o.refill_buffers = 1;
1370         return 0;
1371 }
1372
1373 static int str_verify_pattern_cb(void *data, const char *input)
1374 {
1375         struct thread_data *td = cb_data_to_td(data);
1376         int ret;
1377
1378         td->o.verify_fmt_sz = ARRAY_SIZE(td->o.verify_fmt);
1379         ret = parse_and_fill_pattern(input, strlen(input), td->o.verify_pattern,
1380                                      MAX_PATTERN_SIZE, fmt_desc, sizeof(fmt_desc),
1381                                      td->o.verify_fmt, &td->o.verify_fmt_sz);
1382         if (ret < 0)
1383                 return 1;
1384
1385         assert(ret != 0);
1386         td->o.verify_pattern_bytes = ret;
1387         /*
1388          * VERIFY_* could already be set
1389          */
1390         if (!fio_option_is_set(&td->o, verify))
1391                 td->o.verify = VERIFY_PATTERN;
1392
1393         return 0;
1394 }
1395
1396 static int str_gtod_reduce_cb(void *data, int *il)
1397 {
1398         struct thread_data *td = cb_data_to_td(data);
1399         int val = *il;
1400
1401         td->o.disable_lat = !!val;
1402         td->o.disable_clat = !!val;
1403         td->o.disable_slat = !!val;
1404         td->o.disable_bw = !!val;
1405         td->o.clat_percentiles = !val;
1406         if (val)
1407                 td->ts_cache_mask = 63;
1408
1409         return 0;
1410 }
1411
1412 static int str_offset_cb(void *data, unsigned long long *__val)
1413 {
1414         struct thread_data *td = cb_data_to_td(data);
1415         unsigned long long v = *__val;
1416
1417         if (parse_is_percent(v)) {
1418                 td->o.start_offset = 0;
1419                 td->o.start_offset_percent = -1ULL - v;
1420                 dprint(FD_PARSE, "SET start_offset_percent %d\n",
1421                                         td->o.start_offset_percent);
1422         } else
1423                 td->o.start_offset = v;
1424
1425         return 0;
1426 }
1427
1428 static int str_size_cb(void *data, unsigned long long *__val)
1429 {
1430         struct thread_data *td = cb_data_to_td(data);
1431         unsigned long long v = *__val;
1432
1433         if (parse_is_percent(v)) {
1434                 td->o.size = 0;
1435                 td->o.size_percent = -1ULL - v;
1436                 dprint(FD_PARSE, "SET size_percent %d\n",
1437                                         td->o.size_percent);
1438         } else
1439                 td->o.size = v;
1440
1441         return 0;
1442 }
1443
1444 static int str_write_bw_log_cb(void *data, const char *str)
1445 {
1446         struct thread_data *td = cb_data_to_td(data);
1447
1448         if (str)
1449                 td->o.bw_log_file = strdup(str);
1450
1451         td->o.write_bw_log = 1;
1452         return 0;
1453 }
1454
1455 static int str_write_lat_log_cb(void *data, const char *str)
1456 {
1457         struct thread_data *td = cb_data_to_td(data);
1458
1459         if (str)
1460                 td->o.lat_log_file = strdup(str);
1461
1462         td->o.write_lat_log = 1;
1463         return 0;
1464 }
1465
1466 static int str_write_iops_log_cb(void *data, const char *str)
1467 {
1468         struct thread_data *td = cb_data_to_td(data);
1469
1470         if (str)
1471                 td->o.iops_log_file = strdup(str);
1472
1473         td->o.write_iops_log = 1;
1474         return 0;
1475 }
1476
1477 static int str_write_hist_log_cb(void *data, const char *str)
1478 {
1479         struct thread_data *td = cb_data_to_td(data);
1480
1481         if (str)
1482                 td->o.hist_log_file = strdup(str);
1483
1484         td->o.write_hist_log = 1;
1485         return 0;
1486 }
1487
1488 /*
1489  * str is supposed to be a substring of the strdup'd original string,
1490  * and is valid only if it's a regular file path.
1491  * This function keeps the pointer to the path as needed later.
1492  *
1493  * "external:/path/to/so\0" <- original pointer updated with strdup'd
1494  * "external\0"             <- above pointer after parsed, i.e. ->ioengine
1495  *          "/path/to/so\0" <- str argument, i.e. ->ioengine_so_path
1496  */
1497 static int str_ioengine_external_cb(void *data, const char *str)
1498 {
1499         struct thread_data *td = cb_data_to_td(data);
1500         struct stat sb;
1501         char *p;
1502
1503         if (!str) {
1504                 log_err("fio: null external ioengine path\n");
1505                 return 1;
1506         }
1507
1508         p = (char *)str; /* str is mutable */
1509         strip_blank_front(&p);
1510         strip_blank_end(p);
1511
1512         if (stat(p, &sb) || !S_ISREG(sb.st_mode)) {
1513                 log_err("fio: invalid external ioengine path \"%s\"\n", p);
1514                 return 1;
1515         }
1516
1517         td->o.ioengine_so_path = p;
1518         return 0;
1519 }
1520
1521 static int rw_verify(struct fio_option *o, void *data)
1522 {
1523         struct thread_data *td = cb_data_to_td(data);
1524
1525         if (read_only && td_write(td)) {
1526                 log_err("fio: job <%s> has write bit set, but fio is in"
1527                         " read-only mode\n", td->o.name);
1528                 return 1;
1529         }
1530
1531         return 0;
1532 }
1533
1534 static int gtod_cpu_verify(struct fio_option *o, void *data)
1535 {
1536 #ifndef FIO_HAVE_CPU_AFFINITY
1537         struct thread_data *td = cb_data_to_td(data);
1538
1539         if (td->o.gtod_cpu) {
1540                 log_err("fio: platform must support CPU affinity for"
1541                         "gettimeofday() offloading\n");
1542                 return 1;
1543         }
1544 #endif
1545
1546         return 0;
1547 }
1548
1549 /*
1550  * Map of job/command line options
1551  */
1552 struct fio_option fio_options[FIO_MAX_OPTS] = {
1553         {
1554                 .name   = "description",
1555                 .lname  = "Description of job",
1556                 .type   = FIO_OPT_STR_STORE,
1557                 .off1   = offsetof(struct thread_options, description),
1558                 .help   = "Text job description",
1559                 .category = FIO_OPT_C_GENERAL,
1560                 .group  = FIO_OPT_G_DESC,
1561         },
1562         {
1563                 .name   = "name",
1564                 .lname  = "Job name",
1565                 .type   = FIO_OPT_STR_STORE,
1566                 .off1   = offsetof(struct thread_options, name),
1567                 .help   = "Name of this job",
1568                 .category = FIO_OPT_C_GENERAL,
1569                 .group  = FIO_OPT_G_DESC,
1570         },
1571         {
1572                 .name   = "wait_for",
1573                 .lname  = "Waitee name",
1574                 .type   = FIO_OPT_STR_STORE,
1575                 .off1   = offsetof(struct thread_options, wait_for),
1576                 .help   = "Name of the job this one wants to wait for before starting",
1577                 .category = FIO_OPT_C_GENERAL,
1578                 .group  = FIO_OPT_G_DESC,
1579         },
1580         {
1581                 .name   = "filename",
1582                 .lname  = "Filename(s)",
1583                 .type   = FIO_OPT_STR_STORE,
1584                 .off1   = offsetof(struct thread_options, filename),
1585                 .cb     = str_filename_cb,
1586                 .prio   = -1, /* must come after "directory" */
1587                 .help   = "File(s) to use for the workload",
1588                 .category = FIO_OPT_C_FILE,
1589                 .group  = FIO_OPT_G_FILENAME,
1590         },
1591         {
1592                 .name   = "directory",
1593                 .lname  = "Directory",
1594                 .type   = FIO_OPT_STR_STORE,
1595                 .off1   = offsetof(struct thread_options, directory),
1596                 .cb     = str_directory_cb,
1597                 .help   = "Directory to store files in",
1598                 .category = FIO_OPT_C_FILE,
1599                 .group  = FIO_OPT_G_FILENAME,
1600         },
1601         {
1602                 .name   = "filename_format",
1603                 .lname  = "Filename Format",
1604                 .type   = FIO_OPT_STR_STORE,
1605                 .off1   = offsetof(struct thread_options, filename_format),
1606                 .prio   = -1, /* must come after "directory" */
1607                 .help   = "Override default $jobname.$jobnum.$filenum naming",
1608                 .def    = "$jobname.$jobnum.$filenum",
1609                 .category = FIO_OPT_C_FILE,
1610                 .group  = FIO_OPT_G_FILENAME,
1611         },
1612         {
1613                 .name   = "unique_filename",
1614                 .lname  = "Unique Filename",
1615                 .type   = FIO_OPT_BOOL,
1616                 .off1   = offsetof(struct thread_options, unique_filename),
1617                 .help   = "For network clients, prefix file with source IP",
1618                 .def    = "1",
1619                 .category = FIO_OPT_C_FILE,
1620                 .group  = FIO_OPT_G_FILENAME,
1621         },
1622         {
1623                 .name   = "lockfile",
1624                 .lname  = "Lockfile",
1625                 .type   = FIO_OPT_STR,
1626                 .off1   = offsetof(struct thread_options, file_lock_mode),
1627                 .help   = "Lock file when doing IO to it",
1628                 .prio   = 1,
1629                 .parent = "filename",
1630                 .hide   = 0,
1631                 .def    = "none",
1632                 .category = FIO_OPT_C_FILE,
1633                 .group  = FIO_OPT_G_FILENAME,
1634                 .posval = {
1635                           { .ival = "none",
1636                             .oval = FILE_LOCK_NONE,
1637                             .help = "No file locking",
1638                           },
1639                           { .ival = "exclusive",
1640                             .oval = FILE_LOCK_EXCLUSIVE,
1641                             .help = "Exclusive file lock",
1642                           },
1643                           {
1644                             .ival = "readwrite",
1645                             .oval = FILE_LOCK_READWRITE,
1646                             .help = "Read vs write lock",
1647                           },
1648                 },
1649         },
1650         {
1651                 .name   = "opendir",
1652                 .lname  = "Open directory",
1653                 .type   = FIO_OPT_STR_STORE,
1654                 .off1   = offsetof(struct thread_options, opendir),
1655                 .cb     = str_opendir_cb,
1656                 .help   = "Recursively add files from this directory and down",
1657                 .category = FIO_OPT_C_FILE,
1658                 .group  = FIO_OPT_G_FILENAME,
1659         },
1660         {
1661                 .name   = "rw",
1662                 .lname  = "Read/write",
1663                 .alias  = "readwrite",
1664                 .type   = FIO_OPT_STR,
1665                 .cb     = str_rw_cb,
1666                 .off1   = offsetof(struct thread_options, td_ddir),
1667                 .help   = "IO direction",
1668                 .def    = "read",
1669                 .verify = rw_verify,
1670                 .category = FIO_OPT_C_IO,
1671                 .group  = FIO_OPT_G_IO_BASIC,
1672                 .posval = {
1673                           { .ival = "read",
1674                             .oval = TD_DDIR_READ,
1675                             .help = "Sequential read",
1676                           },
1677                           { .ival = "write",
1678                             .oval = TD_DDIR_WRITE,
1679                             .help = "Sequential write",
1680                           },
1681                           { .ival = "trim",
1682                             .oval = TD_DDIR_TRIM,
1683                             .help = "Sequential trim",
1684                           },
1685                           { .ival = "randread",
1686                             .oval = TD_DDIR_RANDREAD,
1687                             .help = "Random read",
1688                           },
1689                           { .ival = "randwrite",
1690                             .oval = TD_DDIR_RANDWRITE,
1691                             .help = "Random write",
1692                           },
1693                           { .ival = "randtrim",
1694                             .oval = TD_DDIR_RANDTRIM,
1695                             .help = "Random trim",
1696                           },
1697                           { .ival = "rw",
1698                             .oval = TD_DDIR_RW,
1699                             .help = "Sequential read and write mix",
1700                           },
1701                           { .ival = "readwrite",
1702                             .oval = TD_DDIR_RW,
1703                             .help = "Sequential read and write mix",
1704                           },
1705                           { .ival = "randrw",
1706                             .oval = TD_DDIR_RANDRW,
1707                             .help = "Random read and write mix"
1708                           },
1709                           { .ival = "trimwrite",
1710                             .oval = TD_DDIR_TRIMWRITE,
1711                             .help = "Trim and write mix, trims preceding writes"
1712                           },
1713                 },
1714         },
1715         {
1716                 .name   = "rw_sequencer",
1717                 .lname  = "RW Sequencer",
1718                 .type   = FIO_OPT_STR,
1719                 .off1   = offsetof(struct thread_options, rw_seq),
1720                 .help   = "IO offset generator modifier",
1721                 .def    = "sequential",
1722                 .category = FIO_OPT_C_IO,
1723                 .group  = FIO_OPT_G_IO_BASIC,
1724                 .posval = {
1725                           { .ival = "sequential",
1726                             .oval = RW_SEQ_SEQ,
1727                             .help = "Generate sequential offsets",
1728                           },
1729                           { .ival = "identical",
1730                             .oval = RW_SEQ_IDENT,
1731                             .help = "Generate identical offsets",
1732                           },
1733                 },
1734         },
1735
1736         {
1737                 .name   = "ioengine",
1738                 .lname  = "IO Engine",
1739                 .type   = FIO_OPT_STR_STORE,
1740                 .off1   = offsetof(struct thread_options, ioengine),
1741                 .help   = "IO engine to use",
1742                 .def    = FIO_PREFERRED_ENGINE,
1743                 .category = FIO_OPT_C_IO,
1744                 .group  = FIO_OPT_G_IO_BASIC,
1745                 .posval = {
1746                           { .ival = "sync",
1747                             .help = "Use read/write",
1748                           },
1749                           { .ival = "psync",
1750                             .help = "Use pread/pwrite",
1751                           },
1752                           { .ival = "vsync",
1753                             .help = "Use readv/writev",
1754                           },
1755 #ifdef CONFIG_PWRITEV
1756                           { .ival = "pvsync",
1757                             .help = "Use preadv/pwritev",
1758                           },
1759 #endif
1760 #ifdef FIO_HAVE_PWRITEV2
1761                           { .ival = "pvsync2",
1762                             .help = "Use preadv2/pwritev2",
1763                           },
1764 #endif
1765 #ifdef CONFIG_LIBAIO
1766                           { .ival = "libaio",
1767                             .help = "Linux native asynchronous IO",
1768                           },
1769 #endif
1770 #ifdef CONFIG_POSIXAIO
1771                           { .ival = "posixaio",
1772                             .help = "POSIX asynchronous IO",
1773                           },
1774 #endif
1775 #ifdef CONFIG_SOLARISAIO
1776                           { .ival = "solarisaio",
1777                             .help = "Solaris native asynchronous IO",
1778                           },
1779 #endif
1780 #ifdef CONFIG_WINDOWSAIO
1781                           { .ival = "windowsaio",
1782                             .help = "Windows native asynchronous IO"
1783                           },
1784 #endif
1785 #ifdef CONFIG_RBD
1786                           { .ival = "rbd",
1787                             .help = "Rados Block Device asynchronous IO"
1788                           },
1789 #endif
1790                           { .ival = "mmap",
1791                             .help = "Memory mapped IO"
1792                           },
1793 #ifdef CONFIG_LINUX_SPLICE
1794                           { .ival = "splice",
1795                             .help = "splice/vmsplice based IO",
1796                           },
1797                           { .ival = "netsplice",
1798                             .help = "splice/vmsplice to/from the network",
1799                           },
1800 #endif
1801 #ifdef FIO_HAVE_SGIO
1802                           { .ival = "sg",
1803                             .help = "SCSI generic v3 IO",
1804                           },
1805 #endif
1806                           { .ival = "null",
1807                             .help = "Testing engine (no data transfer)",
1808                           },
1809                           { .ival = "net",
1810                             .help = "Network IO",
1811                           },
1812                           { .ival = "cpuio",
1813                             .help = "CPU cycle burner engine",
1814                           },
1815 #ifdef CONFIG_GUASI
1816                           { .ival = "guasi",
1817                             .help = "GUASI IO engine",
1818                           },
1819 #endif
1820 #ifdef FIO_HAVE_BINJECT
1821                           { .ival = "binject",
1822                             .help = "binject direct inject block engine",
1823                           },
1824 #endif
1825 #ifdef CONFIG_RDMA
1826                           { .ival = "rdma",
1827                             .help = "RDMA IO engine",
1828                           },
1829 #endif
1830 #ifdef CONFIG_FUSION_AW
1831                           { .ival = "fusion-aw-sync",
1832                             .help = "Fusion-io atomic write engine",
1833                           },
1834 #endif
1835 #ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
1836                           { .ival = "e4defrag",
1837                             .help = "ext4 defrag engine",
1838                           },
1839 #endif
1840 #ifdef CONFIG_LINUX_FALLOCATE
1841                           { .ival = "falloc",
1842                             .help = "fallocate() file based engine",
1843                           },
1844 #endif
1845 #ifdef CONFIG_GFAPI
1846                           { .ival = "gfapi",
1847                             .help = "Glusterfs libgfapi(sync) based engine"
1848                           },
1849                           { .ival = "gfapi_async",
1850                             .help = "Glusterfs libgfapi(async) based engine"
1851                           },
1852 #endif
1853 #ifdef CONFIG_LIBHDFS
1854                           { .ival = "libhdfs",
1855                             .help = "Hadoop Distributed Filesystem (HDFS) engine"
1856                           },
1857 #endif
1858 #ifdef CONFIG_PMEMBLK
1859                           { .ival = "pmemblk",
1860                             .help = "NVML libpmemblk based IO engine",
1861                           },
1862
1863 #endif
1864 #ifdef CONFIG_LINUX_DEVDAX
1865                           { .ival = "dev-dax",
1866                             .help = "DAX Device based IO engine",
1867                           },
1868 #endif
1869                           {
1870                             .ival = "filecreate",
1871                             .help = "File creation engine",
1872                           },
1873                           { .ival = "external",
1874                             .help = "Load external engine (append name)",
1875                             .cb = str_ioengine_external_cb,
1876                           },
1877 #ifdef CONFIG_LIBPMEM
1878                           { .ival = "libpmem",
1879                             .help = "NVML libpmem based IO engine",
1880                           },
1881 #endif
1882                 },
1883         },
1884         {
1885                 .name   = "iodepth",
1886                 .lname  = "IO Depth",
1887                 .type   = FIO_OPT_INT,
1888                 .off1   = offsetof(struct thread_options, iodepth),
1889                 .help   = "Number of IO buffers to keep in flight",
1890                 .minval = 1,
1891                 .interval = 1,
1892                 .def    = "1",
1893                 .category = FIO_OPT_C_IO,
1894                 .group  = FIO_OPT_G_IO_BASIC,
1895         },
1896         {
1897                 .name   = "iodepth_batch",
1898                 .lname  = "IO Depth batch",
1899                 .alias  = "iodepth_batch_submit",
1900                 .type   = FIO_OPT_INT,
1901                 .off1   = offsetof(struct thread_options, iodepth_batch),
1902                 .help   = "Number of IO buffers to submit in one go",
1903                 .parent = "iodepth",
1904                 .hide   = 1,
1905                 .interval = 1,
1906                 .def    = "1",
1907                 .category = FIO_OPT_C_IO,
1908                 .group  = FIO_OPT_G_IO_BASIC,
1909         },
1910         {
1911                 .name   = "iodepth_batch_complete_min",
1912                 .lname  = "Min IO depth batch complete",
1913                 .alias  = "iodepth_batch_complete",
1914                 .type   = FIO_OPT_INT,
1915                 .off1   = offsetof(struct thread_options, iodepth_batch_complete_min),
1916                 .help   = "Min number of IO buffers to retrieve in one go",
1917                 .parent = "iodepth",
1918                 .hide   = 1,
1919                 .minval = 0,
1920                 .interval = 1,
1921                 .def    = "1",
1922                 .category = FIO_OPT_C_IO,
1923                 .group  = FIO_OPT_G_IO_BASIC,
1924         },
1925         {
1926                 .name   = "iodepth_batch_complete_max",
1927                 .lname  = "Max IO depth batch complete",
1928                 .type   = FIO_OPT_INT,
1929                 .off1   = offsetof(struct thread_options, iodepth_batch_complete_max),
1930                 .help   = "Max number of IO buffers to retrieve in one go",
1931                 .parent = "iodepth",
1932                 .hide   = 1,
1933                 .minval = 0,
1934                 .interval = 1,
1935                 .category = FIO_OPT_C_IO,
1936                 .group  = FIO_OPT_G_IO_BASIC,
1937         },
1938         {
1939                 .name   = "iodepth_low",
1940                 .lname  = "IO Depth batch low",
1941                 .type   = FIO_OPT_INT,
1942                 .off1   = offsetof(struct thread_options, iodepth_low),
1943                 .help   = "Low water mark for queuing depth",
1944                 .parent = "iodepth",
1945                 .hide   = 1,
1946                 .interval = 1,
1947                 .category = FIO_OPT_C_IO,
1948                 .group  = FIO_OPT_G_IO_BASIC,
1949         },
1950         {
1951                 .name   = "serialize_overlap",
1952                 .lname  = "Serialize overlap",
1953                 .off1   = offsetof(struct thread_options, serialize_overlap),
1954                 .type   = FIO_OPT_BOOL,
1955                 .help   = "Wait for in-flight IOs that collide to complete",
1956                 .parent = "iodepth",
1957                 .def    = "0",
1958                 .category = FIO_OPT_C_IO,
1959                 .group  = FIO_OPT_G_IO_BASIC,
1960         },
1961         {
1962                 .name   = "io_submit_mode",
1963                 .lname  = "IO submit mode",
1964                 .type   = FIO_OPT_STR,
1965                 .off1   = offsetof(struct thread_options, io_submit_mode),
1966                 .help   = "How IO submissions and completions are done",
1967                 .def    = "inline",
1968                 .category = FIO_OPT_C_IO,
1969                 .group  = FIO_OPT_G_IO_BASIC,
1970                 .posval = {
1971                           { .ival = "inline",
1972                             .oval = IO_MODE_INLINE,
1973                             .help = "Submit and complete IO inline",
1974                           },
1975                           { .ival = "offload",
1976                             .oval = IO_MODE_OFFLOAD,
1977                             .help = "Offload submit and complete to threads",
1978                           },
1979                 },
1980         },
1981         {
1982                 .name   = "size",
1983                 .lname  = "Size",
1984                 .type   = FIO_OPT_STR_VAL,
1985                 .cb     = str_size_cb,
1986                 .off1   = offsetof(struct thread_options, size),
1987                 .help   = "Total size of device or files",
1988                 .interval = 1024 * 1024,
1989                 .category = FIO_OPT_C_IO,
1990                 .group  = FIO_OPT_G_INVALID,
1991         },
1992         {
1993                 .name   = "io_size",
1994                 .alias  = "io_limit",
1995                 .lname  = "IO Size",
1996                 .type   = FIO_OPT_STR_VAL,
1997                 .off1   = offsetof(struct thread_options, io_size),
1998                 .help   = "Total size of I/O to be performed",
1999                 .interval = 1024 * 1024,
2000                 .category = FIO_OPT_C_IO,
2001                 .group  = FIO_OPT_G_INVALID,
2002         },
2003         {
2004                 .name   = "fill_device",
2005                 .lname  = "Fill device",
2006                 .alias  = "fill_fs",
2007                 .type   = FIO_OPT_BOOL,
2008                 .off1   = offsetof(struct thread_options, fill_device),
2009                 .help   = "Write until an ENOSPC error occurs",
2010                 .def    = "0",
2011                 .category = FIO_OPT_C_FILE,
2012                 .group  = FIO_OPT_G_INVALID,
2013         },
2014         {
2015                 .name   = "filesize",
2016                 .lname  = "File size",
2017                 .type   = FIO_OPT_STR_VAL,
2018                 .off1   = offsetof(struct thread_options, file_size_low),
2019                 .off2   = offsetof(struct thread_options, file_size_high),
2020                 .minval = 1,
2021                 .help   = "Size of individual files",
2022                 .interval = 1024 * 1024,
2023                 .category = FIO_OPT_C_FILE,
2024                 .group  = FIO_OPT_G_INVALID,
2025         },
2026         {
2027                 .name   = "file_append",
2028                 .lname  = "File append",
2029                 .type   = FIO_OPT_BOOL,
2030                 .off1   = offsetof(struct thread_options, file_append),
2031                 .help   = "IO will start at the end of the file(s)",
2032                 .def    = "0",
2033                 .category = FIO_OPT_C_FILE,
2034                 .group  = FIO_OPT_G_INVALID,
2035         },
2036         {
2037                 .name   = "offset",
2038                 .lname  = "IO offset",
2039                 .alias  = "fileoffset",
2040                 .type   = FIO_OPT_STR_VAL,
2041                 .cb     = str_offset_cb,
2042                 .off1   = offsetof(struct thread_options, start_offset),
2043                 .help   = "Start IO from this offset",
2044                 .def    = "0",
2045                 .interval = 1024 * 1024,
2046                 .category = FIO_OPT_C_IO,
2047                 .group  = FIO_OPT_G_INVALID,
2048         },
2049         {
2050                 .name   = "offset_align",
2051                 .lname  = "IO offset alignment",
2052                 .type   = FIO_OPT_INT,
2053                 .off1   = offsetof(struct thread_options, start_offset_align),
2054                 .help   = "Start IO from this offset alignment",
2055                 .def    = "0",
2056                 .interval = 512,
2057                 .category = FIO_OPT_C_IO,
2058                 .group  = FIO_OPT_G_INVALID,
2059         },
2060         {
2061                 .name   = "offset_increment",
2062                 .lname  = "IO offset increment",
2063                 .type   = FIO_OPT_STR_VAL,
2064                 .off1   = offsetof(struct thread_options, offset_increment),
2065                 .help   = "What is the increment from one offset to the next",
2066                 .parent = "offset",
2067                 .hide   = 1,
2068                 .def    = "0",
2069                 .interval = 1024 * 1024,
2070                 .category = FIO_OPT_C_IO,
2071                 .group  = FIO_OPT_G_INVALID,
2072         },
2073         {
2074                 .name   = "number_ios",
2075                 .lname  = "Number of IOs to perform",
2076                 .type   = FIO_OPT_STR_VAL,
2077                 .off1   = offsetof(struct thread_options, number_ios),
2078                 .help   = "Force job completion after this number of IOs",
2079                 .def    = "0",
2080                 .category = FIO_OPT_C_IO,
2081                 .group  = FIO_OPT_G_INVALID,
2082         },
2083         {
2084                 .name   = "bs",
2085                 .lname  = "Block size",
2086                 .alias  = "blocksize",
2087                 .type   = FIO_OPT_INT,
2088                 .off1   = offsetof(struct thread_options, bs[DDIR_READ]),
2089                 .off2   = offsetof(struct thread_options, bs[DDIR_WRITE]),
2090                 .off3   = offsetof(struct thread_options, bs[DDIR_TRIM]),
2091                 .minval = 1,
2092                 .help   = "Block size unit",
2093                 .def    = "4096",
2094                 .parent = "rw",
2095                 .hide   = 1,
2096                 .interval = 512,
2097                 .category = FIO_OPT_C_IO,
2098                 .group  = FIO_OPT_G_INVALID,
2099         },
2100         {
2101                 .name   = "ba",
2102                 .lname  = "Block size align",
2103                 .alias  = "blockalign",
2104                 .type   = FIO_OPT_INT,
2105                 .off1   = offsetof(struct thread_options, ba[DDIR_READ]),
2106                 .off2   = offsetof(struct thread_options, ba[DDIR_WRITE]),
2107                 .off3   = offsetof(struct thread_options, ba[DDIR_TRIM]),
2108                 .minval = 1,
2109                 .help   = "IO block offset alignment",
2110                 .parent = "rw",
2111                 .hide   = 1,
2112                 .interval = 512,
2113                 .category = FIO_OPT_C_IO,
2114                 .group  = FIO_OPT_G_INVALID,
2115         },
2116         {
2117                 .name   = "bsrange",
2118                 .lname  = "Block size range",
2119                 .alias  = "blocksize_range",
2120                 .type   = FIO_OPT_RANGE,
2121                 .off1   = offsetof(struct thread_options, min_bs[DDIR_READ]),
2122                 .off2   = offsetof(struct thread_options, max_bs[DDIR_READ]),
2123                 .off3   = offsetof(struct thread_options, min_bs[DDIR_WRITE]),
2124                 .off4   = offsetof(struct thread_options, max_bs[DDIR_WRITE]),
2125                 .off5   = offsetof(struct thread_options, min_bs[DDIR_TRIM]),
2126                 .off6   = offsetof(struct thread_options, max_bs[DDIR_TRIM]),
2127                 .minval = 1,
2128                 .help   = "Set block size range (in more detail than bs)",
2129                 .parent = "rw",
2130                 .hide   = 1,
2131                 .interval = 4096,
2132                 .category = FIO_OPT_C_IO,
2133                 .group  = FIO_OPT_G_INVALID,
2134         },
2135         {
2136                 .name   = "bssplit",
2137                 .lname  = "Block size split",
2138                 .type   = FIO_OPT_STR,
2139                 .cb     = str_bssplit_cb,
2140                 .off1   = offsetof(struct thread_options, bssplit),
2141                 .help   = "Set a specific mix of block sizes",
2142                 .parent = "rw",
2143                 .hide   = 1,
2144                 .category = FIO_OPT_C_IO,
2145                 .group  = FIO_OPT_G_INVALID,
2146         },
2147         {
2148                 .name   = "bs_unaligned",
2149                 .lname  = "Block size unaligned",
2150                 .alias  = "blocksize_unaligned",
2151                 .type   = FIO_OPT_STR_SET,
2152                 .off1   = offsetof(struct thread_options, bs_unaligned),
2153                 .help   = "Don't sector align IO buffer sizes",
2154                 .parent = "rw",
2155                 .hide   = 1,
2156                 .category = FIO_OPT_C_IO,
2157                 .group  = FIO_OPT_G_INVALID,
2158         },
2159         {
2160                 .name   = "bs_is_seq_rand",
2161                 .lname  = "Block size division is seq/random (not read/write)",
2162                 .type   = FIO_OPT_BOOL,
2163                 .off1   = offsetof(struct thread_options, bs_is_seq_rand),
2164                 .help   = "Consider any blocksize setting to be sequential,random",
2165                 .def    = "0",
2166                 .parent = "blocksize",
2167                 .category = FIO_OPT_C_IO,
2168                 .group  = FIO_OPT_G_INVALID,
2169         },
2170         {
2171                 .name   = "randrepeat",
2172                 .lname  = "Random repeatable",
2173                 .type   = FIO_OPT_BOOL,
2174                 .off1   = offsetof(struct thread_options, rand_repeatable),
2175                 .help   = "Use repeatable random IO pattern",
2176                 .def    = "1",
2177                 .parent = "rw",
2178                 .hide   = 1,
2179                 .category = FIO_OPT_C_IO,
2180                 .group  = FIO_OPT_G_RANDOM,
2181         },
2182         {
2183                 .name   = "randseed",
2184                 .lname  = "The random generator seed",
2185                 .type   = FIO_OPT_STR_VAL,
2186                 .off1   = offsetof(struct thread_options, rand_seed),
2187                 .help   = "Set the random generator seed value",
2188                 .def    = "0x89",
2189                 .parent = "rw",
2190                 .category = FIO_OPT_C_IO,
2191                 .group  = FIO_OPT_G_RANDOM,
2192         },
2193         {
2194                 .name   = "use_os_rand",
2195                 .lname  = "Use OS random",
2196                 .type   = FIO_OPT_DEPRECATED,
2197                 .off1   = offsetof(struct thread_options, dep_use_os_rand),
2198                 .category = FIO_OPT_C_IO,
2199                 .group  = FIO_OPT_G_RANDOM,
2200         },
2201         {
2202                 .name   = "norandommap",
2203                 .lname  = "No randommap",
2204                 .type   = FIO_OPT_STR_SET,
2205                 .off1   = offsetof(struct thread_options, norandommap),
2206                 .help   = "Accept potential duplicate random blocks",
2207                 .parent = "rw",
2208                 .hide   = 1,
2209                 .hide_on_set = 1,
2210                 .category = FIO_OPT_C_IO,
2211                 .group  = FIO_OPT_G_RANDOM,
2212         },
2213         {
2214                 .name   = "softrandommap",
2215                 .lname  = "Soft randommap",
2216                 .type   = FIO_OPT_BOOL,
2217                 .off1   = offsetof(struct thread_options, softrandommap),
2218                 .help   = "Set norandommap if randommap allocation fails",
2219                 .parent = "norandommap",
2220                 .hide   = 1,
2221                 .def    = "0",
2222                 .category = FIO_OPT_C_IO,
2223                 .group  = FIO_OPT_G_RANDOM,
2224         },
2225         {
2226                 .name   = "random_generator",
2227                 .lname  = "Random Generator",
2228                 .type   = FIO_OPT_STR,
2229                 .off1   = offsetof(struct thread_options, random_generator),
2230                 .help   = "Type of random number generator to use",
2231                 .def    = "tausworthe",
2232                 .posval = {
2233                           { .ival = "tausworthe",
2234                             .oval = FIO_RAND_GEN_TAUSWORTHE,
2235                             .help = "Strong Tausworthe generator",
2236                           },
2237                           { .ival = "lfsr",
2238                             .oval = FIO_RAND_GEN_LFSR,
2239                             .help = "Variable length LFSR",
2240                           },
2241                           {
2242                             .ival = "tausworthe64",
2243                             .oval = FIO_RAND_GEN_TAUSWORTHE64,
2244                             .help = "64-bit Tausworthe variant",
2245                           },
2246                 },
2247                 .category = FIO_OPT_C_IO,
2248                 .group  = FIO_OPT_G_RANDOM,
2249         },
2250         {
2251                 .name   = "random_distribution",
2252                 .lname  = "Random Distribution",
2253                 .type   = FIO_OPT_STR,
2254                 .off1   = offsetof(struct thread_options, random_distribution),
2255                 .cb     = str_random_distribution_cb,
2256                 .help   = "Random offset distribution generator",
2257                 .def    = "random",
2258                 .posval = {
2259                           { .ival = "random",
2260                             .oval = FIO_RAND_DIST_RANDOM,
2261                             .help = "Completely random",
2262                           },
2263                           { .ival = "zipf",
2264                             .oval = FIO_RAND_DIST_ZIPF,
2265                             .help = "Zipf distribution",
2266                           },
2267                           { .ival = "pareto",
2268                             .oval = FIO_RAND_DIST_PARETO,
2269                             .help = "Pareto distribution",
2270                           },
2271                           { .ival = "normal",
2272                             .oval = FIO_RAND_DIST_GAUSS,
2273                             .help = "Normal (Gaussian) distribution",
2274                           },
2275                           { .ival = "zoned",
2276                             .oval = FIO_RAND_DIST_ZONED,
2277                             .help = "Zoned random distribution",
2278                           },
2279                           { .ival = "zoned_abs",
2280                             .oval = FIO_RAND_DIST_ZONED_ABS,
2281                             .help = "Zoned absolute random distribution",
2282                           },
2283                 },
2284                 .category = FIO_OPT_C_IO,
2285                 .group  = FIO_OPT_G_RANDOM,
2286         },
2287         {
2288                 .name   = "percentage_random",
2289                 .lname  = "Percentage Random",
2290                 .type   = FIO_OPT_INT,
2291                 .off1   = offsetof(struct thread_options, perc_rand[DDIR_READ]),
2292                 .off2   = offsetof(struct thread_options, perc_rand[DDIR_WRITE]),
2293                 .off3   = offsetof(struct thread_options, perc_rand[DDIR_TRIM]),
2294                 .maxval = 100,
2295                 .help   = "Percentage of seq/random mix that should be random",
2296                 .def    = "100,100,100",
2297                 .interval = 5,
2298                 .inverse = "percentage_sequential",
2299                 .category = FIO_OPT_C_IO,
2300                 .group  = FIO_OPT_G_RANDOM,
2301         },
2302         {
2303                 .name   = "percentage_sequential",
2304                 .lname  = "Percentage Sequential",
2305                 .type   = FIO_OPT_DEPRECATED,
2306                 .category = FIO_OPT_C_IO,
2307                 .group  = FIO_OPT_G_RANDOM,
2308         },
2309         {
2310                 .name   = "allrandrepeat",
2311                 .lname  = "All Random Repeat",
2312                 .type   = FIO_OPT_BOOL,
2313                 .off1   = offsetof(struct thread_options, allrand_repeatable),
2314                 .help   = "Use repeatable random numbers for everything",
2315                 .def    = "0",
2316                 .category = FIO_OPT_C_IO,
2317                 .group  = FIO_OPT_G_RANDOM,
2318         },
2319         {
2320                 .name   = "nrfiles",
2321                 .lname  = "Number of files",
2322                 .alias  = "nr_files",
2323                 .type   = FIO_OPT_INT,
2324                 .off1   = offsetof(struct thread_options, nr_files),
2325                 .help   = "Split job workload between this number of files",
2326                 .def    = "1",
2327                 .interval = 1,
2328                 .category = FIO_OPT_C_FILE,
2329                 .group  = FIO_OPT_G_INVALID,
2330         },
2331         {
2332                 .name   = "openfiles",
2333                 .lname  = "Number of open files",
2334                 .type   = FIO_OPT_INT,
2335                 .off1   = offsetof(struct thread_options, open_files),
2336                 .help   = "Number of files to keep open at the same time",
2337                 .category = FIO_OPT_C_FILE,
2338                 .group  = FIO_OPT_G_INVALID,
2339         },
2340         {
2341                 .name   = "file_service_type",
2342                 .lname  = "File service type",
2343                 .type   = FIO_OPT_STR,
2344                 .cb     = str_fst_cb,
2345                 .off1   = offsetof(struct thread_options, file_service_type),
2346                 .help   = "How to select which file to service next",
2347                 .def    = "roundrobin",
2348                 .category = FIO_OPT_C_FILE,
2349                 .group  = FIO_OPT_G_INVALID,
2350                 .posval = {
2351                           { .ival = "random",
2352                             .oval = FIO_FSERVICE_RANDOM,
2353                             .help = "Choose a file at random (uniform)",
2354                           },
2355                           { .ival = "zipf",
2356                             .oval = FIO_FSERVICE_ZIPF,
2357                             .help = "Zipf randomized",
2358                           },
2359                           { .ival = "pareto",
2360                             .oval = FIO_FSERVICE_PARETO,
2361                             .help = "Pareto randomized",
2362                           },
2363                           { .ival = "normal",
2364                             .oval = FIO_FSERVICE_GAUSS,
2365                             .help = "Normal (Gaussian) randomized",
2366                           },
2367                           { .ival = "gauss",
2368                             .oval = FIO_FSERVICE_GAUSS,
2369                             .help = "Alias for normal",
2370                           },
2371                           { .ival = "roundrobin",
2372                             .oval = FIO_FSERVICE_RR,
2373                             .help = "Round robin select files",
2374                           },
2375                           { .ival = "sequential",
2376                             .oval = FIO_FSERVICE_SEQ,
2377                             .help = "Finish one file before moving to the next",
2378                           },
2379                 },
2380                 .parent = "nrfiles",
2381                 .hide   = 1,
2382         },
2383 #ifdef FIO_HAVE_ANY_FALLOCATE
2384         {
2385                 .name   = "fallocate",
2386                 .lname  = "Fallocate",
2387                 .type   = FIO_OPT_STR,
2388                 .off1   = offsetof(struct thread_options, fallocate_mode),
2389                 .help   = "Whether pre-allocation is performed when laying out files",
2390                 .def    = "native",
2391                 .category = FIO_OPT_C_FILE,
2392                 .group  = FIO_OPT_G_INVALID,
2393                 .posval = {
2394                           { .ival = "none",
2395                             .oval = FIO_FALLOCATE_NONE,
2396                             .help = "Do not pre-allocate space",
2397                           },
2398                           { .ival = "native",
2399                             .oval = FIO_FALLOCATE_NATIVE,
2400                             .help = "Use native pre-allocation if possible",
2401                           },
2402 #ifdef CONFIG_POSIX_FALLOCATE
2403                           { .ival = "posix",
2404                             .oval = FIO_FALLOCATE_POSIX,
2405                             .help = "Use posix_fallocate()",
2406                           },
2407 #endif
2408 #ifdef CONFIG_LINUX_FALLOCATE
2409                           { .ival = "keep",
2410                             .oval = FIO_FALLOCATE_KEEP_SIZE,
2411                             .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
2412                           },
2413 #endif
2414                           /* Compatibility with former boolean values */
2415                           { .ival = "0",
2416                             .oval = FIO_FALLOCATE_NONE,
2417                             .help = "Alias for 'none'",
2418                           },
2419 #ifdef CONFIG_POSIX_FALLOCATE
2420                           { .ival = "1",
2421                             .oval = FIO_FALLOCATE_POSIX,
2422                             .help = "Alias for 'posix'",
2423                           },
2424 #endif
2425                 },
2426         },
2427 #else   /* FIO_HAVE_ANY_FALLOCATE */
2428         {
2429                 .name   = "fallocate",
2430                 .lname  = "Fallocate",
2431                 .type   = FIO_OPT_UNSUPPORTED,
2432                 .help   = "Your platform does not support fallocate",
2433         },
2434 #endif /* FIO_HAVE_ANY_FALLOCATE */
2435         {
2436                 .name   = "fadvise_hint",
2437                 .lname  = "Fadvise hint",
2438                 .type   = FIO_OPT_STR,
2439                 .off1   = offsetof(struct thread_options, fadvise_hint),
2440                 .posval = {
2441                           { .ival = "0",
2442                             .oval = F_ADV_NONE,
2443                             .help = "Don't issue fadvise",
2444                           },
2445                           { .ival = "1",
2446                             .oval = F_ADV_TYPE,
2447                             .help = "Advise using fio IO pattern",
2448                           },
2449                           { .ival = "random",
2450                             .oval = F_ADV_RANDOM,
2451                             .help = "Advise using FADV_RANDOM",
2452                           },
2453                           { .ival = "sequential",
2454                             .oval = F_ADV_SEQUENTIAL,
2455                             .help = "Advise using FADV_SEQUENTIAL",
2456                           },
2457                 },
2458                 .help   = "Use fadvise() to advise the kernel on IO pattern",
2459                 .def    = "1",
2460                 .category = FIO_OPT_C_FILE,
2461                 .group  = FIO_OPT_G_INVALID,
2462         },
2463         {
2464                 .name   = "fsync",
2465                 .lname  = "Fsync",
2466                 .type   = FIO_OPT_INT,
2467                 .off1   = offsetof(struct thread_options, fsync_blocks),
2468                 .help   = "Issue fsync for writes every given number of blocks",
2469                 .def    = "0",
2470                 .interval = 1,
2471                 .category = FIO_OPT_C_FILE,
2472                 .group  = FIO_OPT_G_INVALID,
2473         },
2474         {
2475                 .name   = "fdatasync",
2476                 .lname  = "Fdatasync",
2477                 .type   = FIO_OPT_INT,
2478                 .off1   = offsetof(struct thread_options, fdatasync_blocks),
2479                 .help   = "Issue fdatasync for writes every given number of blocks",
2480                 .def    = "0",
2481                 .interval = 1,
2482                 .category = FIO_OPT_C_FILE,
2483                 .group  = FIO_OPT_G_INVALID,
2484         },
2485         {
2486                 .name   = "write_barrier",
2487                 .lname  = "Write barrier",
2488                 .type   = FIO_OPT_INT,
2489                 .off1   = offsetof(struct thread_options, barrier_blocks),
2490                 .help   = "Make every Nth write a barrier write",
2491                 .def    = "0",
2492                 .interval = 1,
2493                 .category = FIO_OPT_C_IO,
2494                 .group  = FIO_OPT_G_INVALID,
2495         },
2496 #ifdef CONFIG_SYNC_FILE_RANGE
2497         {
2498                 .name   = "sync_file_range",
2499                 .lname  = "Sync file range",
2500                 .posval = {
2501                           { .ival = "wait_before",
2502                             .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
2503                             .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
2504                             .orval  = 1,
2505                           },
2506                           { .ival = "write",
2507                             .oval = SYNC_FILE_RANGE_WRITE,
2508                             .help = "SYNC_FILE_RANGE_WRITE",
2509                             .orval  = 1,
2510                           },
2511                           {
2512                             .ival = "wait_after",
2513                             .oval = SYNC_FILE_RANGE_WAIT_AFTER,
2514                             .help = "SYNC_FILE_RANGE_WAIT_AFTER",
2515                             .orval  = 1,
2516                           },
2517                 },
2518                 .type   = FIO_OPT_STR_MULTI,
2519                 .cb     = str_sfr_cb,
2520                 .off1   = offsetof(struct thread_options, sync_file_range),
2521                 .help   = "Use sync_file_range()",
2522                 .category = FIO_OPT_C_FILE,
2523                 .group  = FIO_OPT_G_INVALID,
2524         },
2525 #else
2526         {
2527                 .name   = "sync_file_range",
2528                 .lname  = "Sync file range",
2529                 .type   = FIO_OPT_UNSUPPORTED,
2530                 .help   = "Your platform does not support sync_file_range",
2531         },
2532 #endif
2533         {
2534                 .name   = "direct",
2535                 .lname  = "Direct I/O",
2536                 .type   = FIO_OPT_BOOL,
2537                 .off1   = offsetof(struct thread_options, odirect),
2538                 .help   = "Use O_DIRECT IO (negates buffered)",
2539                 .def    = "0",
2540                 .inverse = "buffered",
2541                 .category = FIO_OPT_C_IO,
2542                 .group  = FIO_OPT_G_IO_TYPE,
2543         },
2544         {
2545                 .name   = "atomic",
2546                 .lname  = "Atomic I/O",
2547                 .type   = FIO_OPT_BOOL,
2548                 .off1   = offsetof(struct thread_options, oatomic),
2549                 .help   = "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
2550                 .def    = "0",
2551                 .category = FIO_OPT_C_IO,
2552                 .group  = FIO_OPT_G_IO_TYPE,
2553         },
2554         {
2555                 .name   = "buffered",
2556                 .lname  = "Buffered I/O",
2557                 .type   = FIO_OPT_BOOL,
2558                 .off1   = offsetof(struct thread_options, odirect),
2559                 .neg    = 1,
2560                 .help   = "Use buffered IO (negates direct)",
2561                 .def    = "1",
2562                 .inverse = "direct",
2563                 .category = FIO_OPT_C_IO,
2564                 .group  = FIO_OPT_G_IO_TYPE,
2565         },
2566         {
2567                 .name   = "overwrite",
2568                 .lname  = "Overwrite",
2569                 .type   = FIO_OPT_BOOL,
2570                 .off1   = offsetof(struct thread_options, overwrite),
2571                 .help   = "When writing, set whether to overwrite current data",
2572                 .def    = "0",
2573                 .category = FIO_OPT_C_FILE,
2574                 .group  = FIO_OPT_G_INVALID,
2575         },
2576         {
2577                 .name   = "loops",
2578                 .lname  = "Loops",
2579                 .type   = FIO_OPT_INT,
2580                 .off1   = offsetof(struct thread_options, loops),
2581                 .help   = "Number of times to run the job",
2582                 .def    = "1",
2583                 .interval = 1,
2584                 .category = FIO_OPT_C_GENERAL,
2585                 .group  = FIO_OPT_G_RUNTIME,
2586         },
2587         {
2588                 .name   = "numjobs",
2589                 .lname  = "Number of jobs",
2590                 .type   = FIO_OPT_INT,
2591                 .off1   = offsetof(struct thread_options, numjobs),
2592                 .help   = "Duplicate this job this many times",
2593                 .def    = "1",
2594                 .interval = 1,
2595                 .category = FIO_OPT_C_GENERAL,
2596                 .group  = FIO_OPT_G_RUNTIME,
2597         },
2598         {
2599                 .name   = "startdelay",
2600                 .lname  = "Start delay",
2601                 .type   = FIO_OPT_STR_VAL_TIME,
2602                 .off1   = offsetof(struct thread_options, start_delay),
2603                 .off2   = offsetof(struct thread_options, start_delay_high),
2604                 .help   = "Only start job when this period has passed",
2605                 .def    = "0",
2606                 .is_seconds = 1,
2607                 .is_time = 1,
2608                 .category = FIO_OPT_C_GENERAL,
2609                 .group  = FIO_OPT_G_RUNTIME,
2610         },
2611         {
2612                 .name   = "runtime",
2613                 .lname  = "Runtime",
2614                 .alias  = "timeout",
2615                 .type   = FIO_OPT_STR_VAL_TIME,
2616                 .off1   = offsetof(struct thread_options, timeout),
2617                 .help   = "Stop workload when this amount of time has passed",
2618                 .def    = "0",
2619                 .is_seconds = 1,
2620                 .is_time = 1,
2621                 .category = FIO_OPT_C_GENERAL,
2622                 .group  = FIO_OPT_G_RUNTIME,
2623         },
2624         {
2625                 .name   = "time_based",
2626                 .lname  = "Time based",
2627                 .type   = FIO_OPT_STR_SET,
2628                 .off1   = offsetof(struct thread_options, time_based),
2629                 .help   = "Keep running until runtime/timeout is met",
2630                 .category = FIO_OPT_C_GENERAL,
2631                 .group  = FIO_OPT_G_RUNTIME,
2632         },
2633         {
2634                 .name   = "verify_only",
2635                 .lname  = "Verify only",
2636                 .type   = FIO_OPT_STR_SET,
2637                 .off1   = offsetof(struct thread_options, verify_only),
2638                 .help   = "Verifies previously written data is still valid",
2639                 .category = FIO_OPT_C_GENERAL,
2640                 .group  = FIO_OPT_G_RUNTIME,
2641         },
2642         {
2643                 .name   = "ramp_time",
2644                 .lname  = "Ramp time",
2645                 .type   = FIO_OPT_STR_VAL_TIME,
2646                 .off1   = offsetof(struct thread_options, ramp_time),
2647                 .help   = "Ramp up time before measuring performance",
2648                 .is_seconds = 1,
2649                 .is_time = 1,
2650                 .category = FIO_OPT_C_GENERAL,
2651                 .group  = FIO_OPT_G_RUNTIME,
2652         },
2653         {
2654                 .name   = "clocksource",
2655                 .lname  = "Clock source",
2656                 .type   = FIO_OPT_STR,
2657                 .cb     = fio_clock_source_cb,
2658                 .off1   = offsetof(struct thread_options, clocksource),
2659                 .help   = "What type of timing source to use",
2660                 .category = FIO_OPT_C_GENERAL,
2661                 .group  = FIO_OPT_G_CLOCK,
2662                 .posval = {
2663 #ifdef CONFIG_GETTIMEOFDAY
2664                           { .ival = "gettimeofday",
2665                             .oval = CS_GTOD,
2666                             .help = "Use gettimeofday(2) for timing",
2667                           },
2668 #endif
2669 #ifdef CONFIG_CLOCK_GETTIME
2670                           { .ival = "clock_gettime",
2671                             .oval = CS_CGETTIME,
2672                             .help = "Use clock_gettime(2) for timing",
2673                           },
2674 #endif
2675 #ifdef ARCH_HAVE_CPU_CLOCK
2676                           { .ival = "cpu",
2677                             .oval = CS_CPUCLOCK,
2678                             .help = "Use CPU private clock",
2679                           },
2680 #endif
2681                 },
2682         },
2683         {
2684                 .name   = "mem",
2685                 .alias  = "iomem",
2686                 .lname  = "I/O Memory",
2687                 .type   = FIO_OPT_STR,
2688                 .cb     = str_mem_cb,
2689                 .off1   = offsetof(struct thread_options, mem_type),
2690                 .help   = "Backing type for IO buffers",
2691                 .def    = "malloc",
2692                 .category = FIO_OPT_C_IO,
2693                 .group  = FIO_OPT_G_INVALID,
2694                 .posval = {
2695                           { .ival = "malloc",
2696                             .oval = MEM_MALLOC,
2697                             .help = "Use malloc(3) for IO buffers",
2698                           },
2699 #ifndef CONFIG_NO_SHM
2700                           { .ival = "shm",
2701                             .oval = MEM_SHM,
2702                             .help = "Use shared memory segments for IO buffers",
2703                           },
2704 #ifdef FIO_HAVE_HUGETLB
2705                           { .ival = "shmhuge",
2706                             .oval = MEM_SHMHUGE,
2707                             .help = "Like shm, but use huge pages",
2708                           },
2709 #endif
2710 #endif
2711                           { .ival = "mmap",
2712                             .oval = MEM_MMAP,
2713                             .help = "Use mmap(2) (file or anon) for IO buffers",
2714                           },
2715                           { .ival = "mmapshared",
2716                             .oval = MEM_MMAPSHARED,
2717                             .help = "Like mmap, but use the shared flag",
2718                           },
2719 #ifdef FIO_HAVE_HUGETLB
2720                           { .ival = "mmaphuge",
2721                             .oval = MEM_MMAPHUGE,
2722                             .help = "Like mmap, but use huge pages",
2723                           },
2724 #endif
2725 #ifdef CONFIG_CUDA
2726                           { .ival = "cudamalloc",
2727                             .oval = MEM_CUDA_MALLOC,
2728                             .help = "Allocate GPU device memory for GPUDirect RDMA",
2729                           },
2730 #endif
2731                   },
2732         },
2733         {
2734                 .name   = "iomem_align",
2735                 .alias  = "mem_align",
2736                 .lname  = "I/O memory alignment",
2737                 .type   = FIO_OPT_INT,
2738                 .off1   = offsetof(struct thread_options, mem_align),
2739                 .minval = 0,
2740                 .help   = "IO memory buffer offset alignment",
2741                 .def    = "0",
2742                 .parent = "iomem",
2743                 .hide   = 1,
2744                 .category = FIO_OPT_C_IO,
2745                 .group  = FIO_OPT_G_INVALID,
2746         },
2747         {
2748                 .name   = "verify",
2749                 .lname  = "Verify",
2750                 .type   = FIO_OPT_STR,
2751                 .off1   = offsetof(struct thread_options, verify),
2752                 .help   = "Verify data written",
2753                 .def    = "0",
2754                 .category = FIO_OPT_C_IO,
2755                 .group  = FIO_OPT_G_VERIFY,
2756                 .posval = {
2757                           { .ival = "0",
2758                             .oval = VERIFY_NONE,
2759                             .help = "Don't do IO verification",
2760                           },
2761                           { .ival = "md5",
2762                             .oval = VERIFY_MD5,
2763                             .help = "Use md5 checksums for verification",
2764                           },
2765                           { .ival = "crc64",
2766                             .oval = VERIFY_CRC64,
2767                             .help = "Use crc64 checksums for verification",
2768                           },
2769                           { .ival = "crc32",
2770                             .oval = VERIFY_CRC32,
2771                             .help = "Use crc32 checksums for verification",
2772                           },
2773                           { .ival = "crc32c-intel",
2774                             .oval = VERIFY_CRC32C,
2775                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2776                           },
2777                           { .ival = "crc32c",
2778                             .oval = VERIFY_CRC32C,
2779                             .help = "Use crc32c checksums for verification (hw assisted, if available)",
2780                           },
2781                           { .ival = "crc16",
2782                             .oval = VERIFY_CRC16,
2783                             .help = "Use crc16 checksums for verification",
2784                           },
2785                           { .ival = "crc7",
2786                             .oval = VERIFY_CRC7,
2787                             .help = "Use crc7 checksums for verification",
2788                           },
2789                           { .ival = "sha1",
2790                             .oval = VERIFY_SHA1,
2791                             .help = "Use sha1 checksums for verification",
2792                           },
2793                           { .ival = "sha256",
2794                             .oval = VERIFY_SHA256,
2795                             .help = "Use sha256 checksums for verification",
2796                           },
2797                           { .ival = "sha512",
2798                             .oval = VERIFY_SHA512,
2799                             .help = "Use sha512 checksums for verification",
2800                           },
2801                           { .ival = "sha3-224",
2802                             .oval = VERIFY_SHA3_224,
2803                             .help = "Use sha3-224 checksums for verification",
2804                           },
2805                           { .ival = "sha3-256",
2806                             .oval = VERIFY_SHA3_256,
2807                             .help = "Use sha3-256 checksums for verification",
2808                           },
2809                           { .ival = "sha3-384",
2810                             .oval = VERIFY_SHA3_384,
2811                             .help = "Use sha3-384 checksums for verification",
2812                           },
2813                           { .ival = "sha3-512",
2814                             .oval = VERIFY_SHA3_512,
2815                             .help = "Use sha3-512 checksums for verification",
2816                           },
2817                           { .ival = "xxhash",
2818                             .oval = VERIFY_XXHASH,
2819                             .help = "Use xxhash checksums for verification",
2820                           },
2821                           /* Meta information was included into verify_header,
2822                            * 'meta' verification is implied by default. */
2823                           { .ival = "meta",
2824                             .oval = VERIFY_HDR_ONLY,
2825                             .help = "Use io information for verification. "
2826                                     "Now is implied by default, thus option is obsolete, "
2827                                     "don't use it",
2828                           },
2829                           { .ival = "pattern",
2830                             .oval = VERIFY_PATTERN_NO_HDR,
2831                             .help = "Verify strict pattern",
2832                           },
2833                           {
2834                             .ival = "null",
2835                             .oval = VERIFY_NULL,
2836                             .help = "Pretend to verify",
2837                           },
2838                 },
2839         },
2840         {
2841                 .name   = "do_verify",
2842                 .lname  = "Perform verify step",
2843                 .type   = FIO_OPT_BOOL,
2844                 .off1   = offsetof(struct thread_options, do_verify),
2845                 .help   = "Run verification stage after write",
2846                 .def    = "1",
2847                 .parent = "verify",
2848                 .hide   = 1,
2849                 .category = FIO_OPT_C_IO,
2850                 .group  = FIO_OPT_G_VERIFY,
2851         },
2852         {
2853                 .name   = "verifysort",
2854                 .lname  = "Verify sort",
2855                 .type   = FIO_OPT_BOOL,
2856                 .off1   = offsetof(struct thread_options, verifysort),
2857                 .help   = "Sort written verify blocks for read back",
2858                 .def    = "1",
2859                 .parent = "verify",
2860                 .hide   = 1,
2861                 .category = FIO_OPT_C_IO,
2862                 .group  = FIO_OPT_G_VERIFY,
2863         },
2864         {
2865                 .name   = "verifysort_nr",
2866                 .lname  = "Verify Sort Nr",
2867                 .type   = FIO_OPT_INT,
2868                 .off1   = offsetof(struct thread_options, verifysort_nr),
2869                 .help   = "Pre-load and sort verify blocks for a read workload",
2870                 .minval = 0,
2871                 .maxval = 131072,
2872                 .def    = "1024",
2873                 .parent = "verify",
2874                 .category = FIO_OPT_C_IO,
2875                 .group  = FIO_OPT_G_VERIFY,
2876         },
2877         {
2878                 .name   = "verify_interval",
2879                 .lname  = "Verify interval",
2880                 .type   = FIO_OPT_INT,
2881                 .off1   = offsetof(struct thread_options, verify_interval),
2882                 .minval = 2 * sizeof(struct verify_header),
2883                 .help   = "Store verify buffer header every N bytes",
2884                 .parent = "verify",
2885                 .hide   = 1,
2886                 .interval = 2 * sizeof(struct verify_header),
2887                 .category = FIO_OPT_C_IO,
2888                 .group  = FIO_OPT_G_VERIFY,
2889         },
2890         {
2891                 .name   = "verify_offset",
2892                 .lname  = "Verify offset",
2893                 .type   = FIO_OPT_INT,
2894                 .help   = "Offset verify header location by N bytes",
2895                 .off1   = offsetof(struct thread_options, verify_offset),
2896                 .minval = sizeof(struct verify_header),
2897                 .parent = "verify",
2898                 .hide   = 1,
2899                 .category = FIO_OPT_C_IO,
2900                 .group  = FIO_OPT_G_VERIFY,
2901         },
2902         {
2903                 .name   = "verify_pattern",
2904                 .lname  = "Verify pattern",
2905                 .type   = FIO_OPT_STR,
2906                 .cb     = str_verify_pattern_cb,
2907                 .off1   = offsetof(struct thread_options, verify_pattern),
2908                 .help   = "Fill pattern for IO buffers",
2909                 .parent = "verify",
2910                 .hide   = 1,
2911                 .category = FIO_OPT_C_IO,
2912                 .group  = FIO_OPT_G_VERIFY,
2913         },
2914         {
2915                 .name   = "verify_fatal",
2916                 .lname  = "Verify fatal",
2917                 .type   = FIO_OPT_BOOL,
2918                 .off1   = offsetof(struct thread_options, verify_fatal),
2919                 .def    = "0",
2920                 .help   = "Exit on a single verify failure, don't continue",
2921                 .parent = "verify",
2922                 .hide   = 1,
2923                 .category = FIO_OPT_C_IO,
2924                 .group  = FIO_OPT_G_VERIFY,
2925         },
2926         {
2927                 .name   = "verify_dump",
2928                 .lname  = "Verify dump",
2929                 .type   = FIO_OPT_BOOL,
2930                 .off1   = offsetof(struct thread_options, verify_dump),
2931                 .def    = "0",
2932                 .help   = "Dump contents of good and bad blocks on failure",
2933                 .parent = "verify",
2934                 .hide   = 1,
2935                 .category = FIO_OPT_C_IO,
2936                 .group  = FIO_OPT_G_VERIFY,
2937         },
2938         {
2939                 .name   = "verify_async",
2940                 .lname  = "Verify asynchronously",
2941                 .type   = FIO_OPT_INT,
2942                 .off1   = offsetof(struct thread_options, verify_async),
2943                 .def    = "0",
2944                 .help   = "Number of async verifier threads to use",
2945                 .parent = "verify",
2946                 .hide   = 1,
2947                 .category = FIO_OPT_C_IO,
2948                 .group  = FIO_OPT_G_VERIFY,
2949         },
2950         {
2951                 .name   = "verify_backlog",
2952                 .lname  = "Verify backlog",
2953                 .type   = FIO_OPT_STR_VAL,
2954                 .off1   = offsetof(struct thread_options, verify_backlog),
2955                 .help   = "Verify after this number of blocks are written",
2956                 .parent = "verify",
2957                 .hide   = 1,
2958                 .category = FIO_OPT_C_IO,
2959                 .group  = FIO_OPT_G_VERIFY,
2960         },
2961         {
2962                 .name   = "verify_backlog_batch",
2963                 .lname  = "Verify backlog batch",
2964                 .type   = FIO_OPT_INT,
2965                 .off1   = offsetof(struct thread_options, verify_batch),
2966                 .help   = "Verify this number of IO blocks",
2967                 .parent = "verify",
2968                 .hide   = 1,
2969                 .category = FIO_OPT_C_IO,
2970                 .group  = FIO_OPT_G_VERIFY,
2971         },
2972 #ifdef FIO_HAVE_CPU_AFFINITY
2973         {
2974                 .name   = "verify_async_cpus",
2975                 .lname  = "Async verify CPUs",
2976                 .type   = FIO_OPT_STR,
2977                 .cb     = str_verify_cpus_allowed_cb,
2978                 .off1   = offsetof(struct thread_options, verify_cpumask),
2979                 .help   = "Set CPUs allowed for async verify threads",
2980                 .parent = "verify_async",
2981                 .hide   = 1,
2982                 .category = FIO_OPT_C_IO,
2983                 .group  = FIO_OPT_G_VERIFY,
2984         },
2985 #else
2986         {
2987                 .name   = "verify_async_cpus",
2988                 .lname  = "Async verify CPUs",
2989                 .type   = FIO_OPT_UNSUPPORTED,
2990                 .help   = "Your platform does not support CPU affinities",
2991         },
2992 #endif
2993         {
2994                 .name   = "experimental_verify",
2995                 .lname  = "Experimental Verify",
2996                 .off1   = offsetof(struct thread_options, experimental_verify),
2997                 .type   = FIO_OPT_BOOL,
2998                 .help   = "Enable experimental verification",
2999                 .parent = "verify",
3000                 .category = FIO_OPT_C_IO,
3001                 .group  = FIO_OPT_G_VERIFY,
3002         },
3003         {
3004                 .name   = "verify_state_load",
3005                 .lname  = "Load verify state",
3006                 .off1   = offsetof(struct thread_options, verify_state),
3007                 .type   = FIO_OPT_BOOL,
3008                 .help   = "Load verify termination state",
3009                 .parent = "verify",
3010                 .category = FIO_OPT_C_IO,
3011                 .group  = FIO_OPT_G_VERIFY,
3012         },
3013         {
3014                 .name   = "verify_state_save",
3015                 .lname  = "Save verify state",
3016                 .off1   = offsetof(struct thread_options, verify_state_save),
3017                 .type   = FIO_OPT_BOOL,
3018                 .def    = "1",
3019                 .help   = "Save verify state on termination",
3020                 .parent = "verify",
3021                 .category = FIO_OPT_C_IO,
3022                 .group  = FIO_OPT_G_VERIFY,
3023         },
3024 #ifdef FIO_HAVE_TRIM
3025         {
3026                 .name   = "trim_percentage",
3027                 .lname  = "Trim percentage",
3028                 .type   = FIO_OPT_INT,
3029                 .off1   = offsetof(struct thread_options, trim_percentage),
3030                 .minval = 0,
3031                 .maxval = 100,
3032                 .help   = "Number of verify blocks to trim (i.e., discard)",
3033                 .parent = "verify",
3034                 .def    = "0",
3035                 .interval = 1,
3036                 .hide   = 1,
3037                 .category = FIO_OPT_C_IO,
3038                 .group  = FIO_OPT_G_TRIM,
3039         },
3040         {
3041                 .name   = "trim_verify_zero",
3042                 .lname  = "Verify trim zero",
3043                 .type   = FIO_OPT_BOOL,
3044                 .help   = "Verify that trimmed (i.e., discarded) blocks are returned as zeroes",
3045                 .off1   = offsetof(struct thread_options, trim_zero),
3046                 .parent = "trim_percentage",
3047                 .hide   = 1,
3048                 .def    = "1",
3049                 .category = FIO_OPT_C_IO,
3050                 .group  = FIO_OPT_G_TRIM,
3051         },
3052         {
3053                 .name   = "trim_backlog",
3054                 .lname  = "Trim backlog",
3055                 .type   = FIO_OPT_STR_VAL,
3056                 .off1   = offsetof(struct thread_options, trim_backlog),
3057                 .help   = "Trim after this number of blocks are written",
3058                 .parent = "trim_percentage",
3059                 .hide   = 1,
3060                 .interval = 1,
3061                 .category = FIO_OPT_C_IO,
3062                 .group  = FIO_OPT_G_TRIM,
3063         },
3064         {
3065                 .name   = "trim_backlog_batch",
3066                 .lname  = "Trim backlog batch",
3067                 .type   = FIO_OPT_INT,
3068                 .off1   = offsetof(struct thread_options, trim_batch),
3069                 .help   = "Trim this number of IO blocks",
3070                 .parent = "trim_percentage",
3071                 .hide   = 1,
3072                 .interval = 1,
3073                 .category = FIO_OPT_C_IO,
3074                 .group  = FIO_OPT_G_TRIM,
3075         },
3076 #else
3077         {
3078                 .name   = "trim_percentage",
3079                 .lname  = "Trim percentage",
3080                 .type   = FIO_OPT_UNSUPPORTED,
3081                 .help   = "Fio does not support TRIM on your platform",
3082         },
3083         {
3084                 .name   = "trim_verify_zero",
3085                 .lname  = "Verify trim zero",
3086                 .type   = FIO_OPT_UNSUPPORTED,
3087                 .help   = "Fio does not support TRIM on your platform",
3088         },
3089         {
3090                 .name   = "trim_backlog",
3091                 .lname  = "Trim backlog",
3092                 .type   = FIO_OPT_UNSUPPORTED,
3093                 .help   = "Fio does not support TRIM on your platform",
3094         },
3095         {
3096                 .name   = "trim_backlog_batch",
3097                 .lname  = "Trim backlog batch",
3098                 .type   = FIO_OPT_UNSUPPORTED,
3099                 .help   = "Fio does not support TRIM on your platform",
3100         },
3101 #endif
3102         {
3103                 .name   = "write_iolog",
3104                 .lname  = "Write I/O log",
3105                 .type   = FIO_OPT_STR_STORE,
3106                 .off1   = offsetof(struct thread_options, write_iolog_file),
3107                 .help   = "Store IO pattern to file",
3108                 .category = FIO_OPT_C_IO,
3109                 .group  = FIO_OPT_G_IOLOG,
3110         },
3111         {
3112                 .name   = "read_iolog",
3113                 .lname  = "Read I/O log",
3114                 .type   = FIO_OPT_STR_STORE,
3115                 .off1   = offsetof(struct thread_options, read_iolog_file),
3116                 .help   = "Playback IO pattern from file",
3117                 .category = FIO_OPT_C_IO,
3118                 .group  = FIO_OPT_G_IOLOG,
3119         },
3120         {
3121                 .name   = "replay_no_stall",
3122                 .lname  = "Don't stall on replay",
3123                 .type   = FIO_OPT_BOOL,
3124                 .off1   = offsetof(struct thread_options, no_stall),
3125                 .def    = "0",
3126                 .parent = "read_iolog",
3127                 .hide   = 1,
3128                 .help   = "Playback IO pattern file as fast as possible without stalls",
3129                 .category = FIO_OPT_C_IO,
3130                 .group  = FIO_OPT_G_IOLOG,
3131         },
3132         {
3133                 .name   = "replay_redirect",
3134                 .lname  = "Redirect device for replay",
3135                 .type   = FIO_OPT_STR_STORE,
3136                 .off1   = offsetof(struct thread_options, replay_redirect),
3137                 .parent = "read_iolog",
3138                 .hide   = 1,
3139                 .help   = "Replay all I/O onto this device, regardless of trace device",
3140                 .category = FIO_OPT_C_IO,
3141                 .group  = FIO_OPT_G_IOLOG,
3142         },
3143         {
3144                 .name   = "replay_scale",
3145                 .lname  = "Replace offset scale factor",
3146                 .type   = FIO_OPT_INT,
3147                 .off1   = offsetof(struct thread_options, replay_scale),
3148                 .parent = "read_iolog",
3149                 .def    = "1",
3150                 .help   = "Align offsets to this blocksize",
3151                 .category = FIO_OPT_C_IO,
3152                 .group  = FIO_OPT_G_IOLOG,
3153         },
3154         {
3155                 .name   = "replay_align",
3156                 .lname  = "Replace alignment",
3157                 .type   = FIO_OPT_INT,
3158                 .off1   = offsetof(struct thread_options, replay_align),
3159                 .parent = "read_iolog",
3160                 .help   = "Scale offset down by this factor",
3161                 .category = FIO_OPT_C_IO,
3162                 .group  = FIO_OPT_G_IOLOG,
3163                 .pow2   = 1,
3164         },
3165         {
3166                 .name   = "exec_prerun",
3167                 .lname  = "Pre-execute runnable",
3168                 .type   = FIO_OPT_STR_STORE,
3169                 .off1   = offsetof(struct thread_options, exec_prerun),
3170                 .help   = "Execute this file prior to running job",
3171                 .category = FIO_OPT_C_GENERAL,
3172                 .group  = FIO_OPT_G_INVALID,
3173         },
3174         {
3175                 .name   = "exec_postrun",
3176                 .lname  = "Post-execute runnable",
3177                 .type   = FIO_OPT_STR_STORE,
3178                 .off1   = offsetof(struct thread_options, exec_postrun),
3179                 .help   = "Execute this file after running job",
3180                 .category = FIO_OPT_C_GENERAL,
3181                 .group  = FIO_OPT_G_INVALID,
3182         },
3183 #ifdef FIO_HAVE_IOSCHED_SWITCH
3184         {
3185                 .name   = "ioscheduler",
3186                 .lname  = "I/O scheduler",
3187                 .type   = FIO_OPT_STR_STORE,
3188                 .off1   = offsetof(struct thread_options, ioscheduler),
3189                 .help   = "Use this IO scheduler on the backing device",
3190                 .category = FIO_OPT_C_FILE,
3191                 .group  = FIO_OPT_G_INVALID,
3192         },
3193 #else
3194         {
3195                 .name   = "ioscheduler",
3196                 .lname  = "I/O scheduler",
3197                 .type   = FIO_OPT_UNSUPPORTED,
3198                 .help   = "Your platform does not support IO scheduler switching",
3199         },
3200 #endif
3201         {
3202                 .name   = "zonesize",
3203                 .lname  = "Zone size",
3204                 .type   = FIO_OPT_STR_VAL,
3205                 .off1   = offsetof(struct thread_options, zone_size),
3206                 .help   = "Amount of data to read per zone",
3207                 .def    = "0",
3208                 .interval = 1024 * 1024,
3209                 .category = FIO_OPT_C_IO,
3210                 .group  = FIO_OPT_G_ZONE,
3211         },
3212         {
3213                 .name   = "zonerange",
3214                 .lname  = "Zone range",
3215                 .type   = FIO_OPT_STR_VAL,
3216                 .off1   = offsetof(struct thread_options, zone_range),
3217                 .help   = "Give size of an IO zone",
3218                 .def    = "0",
3219                 .interval = 1024 * 1024,
3220                 .category = FIO_OPT_C_IO,
3221                 .group  = FIO_OPT_G_ZONE,
3222         },
3223         {
3224                 .name   = "zoneskip",
3225                 .lname  = "Zone skip",
3226                 .type   = FIO_OPT_STR_VAL,
3227                 .off1   = offsetof(struct thread_options, zone_skip),
3228                 .help   = "Space between IO zones",
3229                 .def    = "0",
3230                 .interval = 1024 * 1024,
3231                 .category = FIO_OPT_C_IO,
3232                 .group  = FIO_OPT_G_ZONE,
3233         },
3234         {
3235                 .name   = "lockmem",
3236                 .lname  = "Lock memory",
3237                 .type   = FIO_OPT_STR_VAL,
3238                 .off1   = offsetof(struct thread_options, lockmem),
3239                 .help   = "Lock down this amount of memory (per worker)",
3240                 .def    = "0",
3241                 .interval = 1024 * 1024,
3242                 .category = FIO_OPT_C_GENERAL,
3243                 .group  = FIO_OPT_G_INVALID,
3244         },
3245         {
3246                 .name   = "rwmixread",
3247                 .lname  = "Read/write mix read",
3248                 .type   = FIO_OPT_INT,
3249                 .cb     = str_rwmix_read_cb,
3250                 .off1   = offsetof(struct thread_options, rwmix[DDIR_READ]),
3251                 .maxval = 100,
3252                 .help   = "Percentage of mixed workload that is reads",
3253                 .def    = "50",
3254                 .interval = 5,
3255                 .inverse = "rwmixwrite",
3256                 .category = FIO_OPT_C_IO,
3257                 .group  = FIO_OPT_G_RWMIX,
3258         },
3259         {
3260                 .name   = "rwmixwrite",
3261                 .lname  = "Read/write mix write",
3262                 .type   = FIO_OPT_INT,
3263                 .cb     = str_rwmix_write_cb,
3264                 .off1   = offsetof(struct thread_options, rwmix[DDIR_WRITE]),
3265                 .maxval = 100,
3266                 .help   = "Percentage of mixed workload that is writes",
3267                 .def    = "50",
3268                 .interval = 5,
3269                 .inverse = "rwmixread",
3270                 .category = FIO_OPT_C_IO,
3271                 .group  = FIO_OPT_G_RWMIX,
3272         },
3273         {
3274                 .name   = "rwmixcycle",
3275                 .lname  = "Read/write mix cycle",
3276                 .type   = FIO_OPT_DEPRECATED,
3277                 .category = FIO_OPT_C_IO,
3278                 .group  = FIO_OPT_G_RWMIX,
3279         },
3280         {
3281                 .name   = "nice",
3282                 .lname  = "Nice",
3283                 .type   = FIO_OPT_INT,
3284                 .off1   = offsetof(struct thread_options, nice),
3285                 .help   = "Set job CPU nice value",
3286                 .minval = -20,
3287                 .maxval = 19,
3288                 .def    = "0",
3289                 .interval = 1,
3290                 .category = FIO_OPT_C_GENERAL,
3291                 .group  = FIO_OPT_G_CRED,
3292         },
3293 #ifdef FIO_HAVE_IOPRIO
3294         {
3295                 .name   = "prio",
3296                 .lname  = "I/O nice priority",
3297                 .type   = FIO_OPT_INT,
3298                 .off1   = offsetof(struct thread_options, ioprio),
3299                 .help   = "Set job IO priority value",
3300                 .minval = IOPRIO_MIN_PRIO,
3301                 .maxval = IOPRIO_MAX_PRIO,
3302                 .interval = 1,
3303                 .category = FIO_OPT_C_GENERAL,
3304                 .group  = FIO_OPT_G_CRED,
3305         },
3306 #else
3307         {
3308                 .name   = "prio",
3309                 .lname  = "I/O nice priority",
3310                 .type   = FIO_OPT_UNSUPPORTED,
3311                 .help   = "Your platform does not support IO priorities",
3312         },
3313 #endif
3314 #ifdef FIO_HAVE_IOPRIO_CLASS
3315 #ifndef FIO_HAVE_IOPRIO
3316 #error "FIO_HAVE_IOPRIO_CLASS requires FIO_HAVE_IOPRIO"
3317 #endif
3318         {
3319                 .name   = "prioclass",
3320                 .lname  = "I/O nice priority class",
3321                 .type   = FIO_OPT_INT,
3322                 .off1   = offsetof(struct thread_options, ioprio_class),
3323                 .help   = "Set job IO priority class",
3324                 .minval = IOPRIO_MIN_PRIO_CLASS,
3325                 .maxval = IOPRIO_MAX_PRIO_CLASS,
3326                 .interval = 1,
3327                 .category = FIO_OPT_C_GENERAL,
3328                 .group  = FIO_OPT_G_CRED,
3329         },
3330 #else
3331         {
3332                 .name   = "prioclass",
3333                 .lname  = "I/O nice priority class",
3334                 .type   = FIO_OPT_UNSUPPORTED,
3335                 .help   = "Your platform does not support IO priority classes",
3336         },
3337 #endif
3338         {
3339                 .name   = "thinktime",
3340                 .lname  = "Thinktime",
3341                 .type   = FIO_OPT_INT,
3342                 .off1   = offsetof(struct thread_options, thinktime),
3343                 .help   = "Idle time between IO buffers (usec)",
3344                 .def    = "0",
3345                 .is_time = 1,
3346                 .category = FIO_OPT_C_IO,
3347                 .group  = FIO_OPT_G_THINKTIME,
3348         },
3349         {
3350                 .name   = "thinktime_spin",
3351                 .lname  = "Thinktime spin",
3352                 .type   = FIO_OPT_INT,
3353                 .off1   = offsetof(struct thread_options, thinktime_spin),
3354                 .help   = "Start think time by spinning this amount (usec)",
3355                 .def    = "0",
3356                 .is_time = 1,
3357                 .parent = "thinktime",
3358                 .hide   = 1,
3359                 .category = FIO_OPT_C_IO,
3360                 .group  = FIO_OPT_G_THINKTIME,
3361         },
3362         {
3363                 .name   = "thinktime_blocks",
3364                 .lname  = "Thinktime blocks",
3365                 .type   = FIO_OPT_INT,
3366                 .off1   = offsetof(struct thread_options, thinktime_blocks),
3367                 .help   = "IO buffer period between 'thinktime'",
3368                 .def    = "1",
3369                 .parent = "thinktime",
3370                 .hide   = 1,
3371                 .category = FIO_OPT_C_IO,
3372                 .group  = FIO_OPT_G_THINKTIME,
3373         },
3374         {
3375                 .name   = "rate",
3376                 .lname  = "I/O rate",
3377                 .type   = FIO_OPT_INT,
3378                 .off1   = offsetof(struct thread_options, rate[DDIR_READ]),
3379                 .off2   = offsetof(struct thread_options, rate[DDIR_WRITE]),
3380                 .off3   = offsetof(struct thread_options, rate[DDIR_TRIM]),
3381                 .help   = "Set bandwidth rate",
3382                 .category = FIO_OPT_C_IO,
3383                 .group  = FIO_OPT_G_RATE,
3384         },
3385         {
3386                 .name   = "rate_min",
3387                 .alias  = "ratemin",
3388                 .lname  = "I/O min rate",
3389                 .type   = FIO_OPT_INT,
3390                 .off1   = offsetof(struct thread_options, ratemin[DDIR_READ]),
3391                 .off2   = offsetof(struct thread_options, ratemin[DDIR_WRITE]),
3392                 .off3   = offsetof(struct thread_options, ratemin[DDIR_TRIM]),
3393                 .help   = "Job must meet this rate or it will be shutdown",
3394                 .parent = "rate",
3395                 .hide   = 1,
3396                 .category = FIO_OPT_C_IO,
3397                 .group  = FIO_OPT_G_RATE,
3398         },
3399         {
3400                 .name   = "rate_iops",
3401                 .lname  = "I/O rate IOPS",
3402                 .type   = FIO_OPT_INT,
3403                 .off1   = offsetof(struct thread_options, rate_iops[DDIR_READ]),
3404                 .off2   = offsetof(struct thread_options, rate_iops[DDIR_WRITE]),
3405                 .off3   = offsetof(struct thread_options, rate_iops[DDIR_TRIM]),
3406                 .help   = "Limit IO used to this number of IO operations/sec",
3407                 .hide   = 1,
3408                 .category = FIO_OPT_C_IO,
3409                 .group  = FIO_OPT_G_RATE,
3410         },
3411         {
3412                 .name   = "rate_iops_min",
3413                 .lname  = "I/O min rate IOPS",
3414                 .type   = FIO_OPT_INT,
3415                 .off1   = offsetof(struct thread_options, rate_iops_min[DDIR_READ]),
3416                 .off2   = offsetof(struct thread_options, rate_iops_min[DDIR_WRITE]),
3417                 .off3   = offsetof(struct thread_options, rate_iops_min[DDIR_TRIM]),
3418                 .help   = "Job must meet this rate or it will be shut down",
3419                 .parent = "rate_iops",
3420                 .hide   = 1,
3421                 .category = FIO_OPT_C_IO,
3422                 .group  = FIO_OPT_G_RATE,
3423         },
3424         {
3425                 .name   = "rate_process",
3426                 .lname  = "Rate Process",
3427                 .type   = FIO_OPT_STR,
3428                 .off1   = offsetof(struct thread_options, rate_process),
3429                 .help   = "What process controls how rated IO is managed",
3430                 .def    = "linear",
3431                 .category = FIO_OPT_C_IO,
3432                 .group  = FIO_OPT_G_RATE,
3433                 .posval = {
3434                           { .ival = "linear",
3435                             .oval = RATE_PROCESS_LINEAR,
3436                             .help = "Linear rate of IO",
3437                           },
3438                           {
3439                             .ival = "poisson",
3440                             .oval = RATE_PROCESS_POISSON,
3441                             .help = "Rate follows Poisson process",
3442                           },
3443                 },
3444                 .parent = "rate",
3445         },
3446         {
3447                 .name   = "rate_cycle",
3448                 .alias  = "ratecycle",
3449                 .lname  = "I/O rate cycle",
3450                 .type   = FIO_OPT_INT,
3451                 .off1   = offsetof(struct thread_options, ratecycle),
3452                 .help   = "Window average for rate limits (msec)",
3453                 .def    = "1000",
3454                 .parent = "rate",
3455                 .hide   = 1,
3456                 .category = FIO_OPT_C_IO,
3457                 .group  = FIO_OPT_G_RATE,
3458         },
3459         {
3460                 .name   = "max_latency",
3461                 .lname  = "Max Latency (usec)",
3462                 .type   = FIO_OPT_STR_VAL_TIME,
3463                 .off1   = offsetof(struct thread_options, max_latency),
3464                 .help   = "Maximum tolerated IO latency (usec)",
3465                 .is_time = 1,
3466                 .category = FIO_OPT_C_IO,
3467                 .group = FIO_OPT_G_LATPROF,
3468         },
3469         {
3470                 .name   = "latency_target",
3471                 .lname  = "Latency Target (usec)",
3472                 .type   = FIO_OPT_STR_VAL_TIME,
3473                 .off1   = offsetof(struct thread_options, latency_target),
3474                 .help   = "Ramp to max queue depth supporting this latency",
3475                 .is_time = 1,
3476                 .category = FIO_OPT_C_IO,
3477                 .group  = FIO_OPT_G_LATPROF,
3478         },
3479         {
3480                 .name   = "latency_window",
3481                 .lname  = "Latency Window (usec)",
3482                 .type   = FIO_OPT_STR_VAL_TIME,
3483                 .off1   = offsetof(struct thread_options, latency_window),
3484                 .help   = "Time to sustain latency_target",
3485                 .is_time = 1,
3486                 .category = FIO_OPT_C_IO,
3487                 .group  = FIO_OPT_G_LATPROF,
3488         },
3489         {
3490                 .name   = "latency_percentile",
3491                 .lname  = "Latency Percentile",
3492                 .type   = FIO_OPT_FLOAT_LIST,
3493                 .off1   = offsetof(struct thread_options, latency_percentile),
3494                 .help   = "Percentile of IOs must be below latency_target",
3495                 .def    = "100",
3496                 .maxlen = 1,
3497                 .minfp  = 0.0,
3498                 .maxfp  = 100.0,
3499                 .category = FIO_OPT_C_IO,
3500                 .group  = FIO_OPT_G_LATPROF,
3501         },
3502         {
3503                 .name   = "invalidate",
3504                 .lname  = "Cache invalidate",
3505                 .type   = FIO_OPT_BOOL,
3506                 .off1   = offsetof(struct thread_options, invalidate_cache),
3507                 .help   = "Invalidate buffer/page cache prior to running job",
3508                 .def    = "1",
3509                 .category = FIO_OPT_C_IO,
3510                 .group  = FIO_OPT_G_IO_TYPE,
3511         },
3512         {
3513                 .name   = "sync",
3514                 .lname  = "Synchronous I/O",
3515                 .type   = FIO_OPT_BOOL,
3516                 .off1   = offsetof(struct thread_options, sync_io),
3517                 .help   = "Use O_SYNC for buffered writes",
3518                 .def    = "0",
3519                 .parent = "buffered",
3520                 .hide   = 1,
3521                 .category = FIO_OPT_C_IO,
3522                 .group  = FIO_OPT_G_IO_TYPE,
3523         },
3524 #ifdef FIO_HAVE_WRITE_HINT
3525         {
3526                 .name   = "write_hint",
3527                 .lname  = "Write hint",
3528                 .type   = FIO_OPT_STR,
3529                 .off1   = offsetof(struct thread_options, write_hint),
3530                 .help   = "Set expected write life time",
3531                 .category = FIO_OPT_C_ENGINE,
3532                 .group  = FIO_OPT_G_INVALID,
3533                 .posval = {
3534                           { .ival = "none",
3535                             .oval = RWH_WRITE_LIFE_NONE,
3536                           },
3537                           { .ival = "short",
3538                             .oval = RWH_WRITE_LIFE_SHORT,
3539                           },
3540                           { .ival = "medium",
3541                             .oval = RWH_WRITE_LIFE_MEDIUM,
3542                           },
3543                           { .ival = "long",
3544                             .oval = RWH_WRITE_LIFE_LONG,
3545                           },
3546                           { .ival = "extreme",
3547                             .oval = RWH_WRITE_LIFE_EXTREME,
3548                           },
3549                 },
3550         },
3551 #endif
3552         {
3553                 .name   = "create_serialize",
3554                 .lname  = "Create serialize",
3555                 .type   = FIO_OPT_BOOL,
3556                 .off1   = offsetof(struct thread_options, create_serialize),
3557                 .help   = "Serialize creation of job files",
3558                 .def    = "1",
3559                 .category = FIO_OPT_C_FILE,
3560                 .group  = FIO_OPT_G_INVALID,
3561         },
3562         {
3563                 .name   = "create_fsync",
3564                 .lname  = "Create fsync",
3565                 .type   = FIO_OPT_BOOL,
3566                 .off1   = offsetof(struct thread_options, create_fsync),
3567                 .help   = "fsync file after creation",
3568                 .def    = "1",
3569                 .category = FIO_OPT_C_FILE,
3570                 .group  = FIO_OPT_G_INVALID,
3571         },
3572         {
3573                 .name   = "create_on_open",
3574                 .lname  = "Create on open",
3575                 .type   = FIO_OPT_BOOL,
3576                 .off1   = offsetof(struct thread_options, create_on_open),
3577                 .help   = "Create files when they are opened for IO",
3578                 .def    = "0",
3579                 .category = FIO_OPT_C_FILE,
3580                 .group  = FIO_OPT_G_INVALID,
3581         },
3582         {
3583                 .name   = "create_only",
3584                 .lname  = "Create Only",
3585                 .type   = FIO_OPT_BOOL,
3586                 .off1   = offsetof(struct thread_options, create_only),
3587                 .help   = "Only perform file creation phase",
3588                 .category = FIO_OPT_C_FILE,
3589                 .def    = "0",
3590         },
3591         {
3592                 .name   = "allow_file_create",
3593                 .lname  = "Allow file create",
3594                 .type   = FIO_OPT_BOOL,
3595                 .off1   = offsetof(struct thread_options, allow_create),
3596                 .help   = "Permit fio to create files, if they don't exist",
3597                 .def    = "1",
3598                 .category = FIO_OPT_C_FILE,
3599                 .group  = FIO_OPT_G_FILENAME,
3600         },
3601         {
3602                 .name   = "allow_mounted_write",
3603                 .lname  = "Allow mounted write",
3604                 .type   = FIO_OPT_BOOL,
3605                 .off1   = offsetof(struct thread_options, allow_mounted_write),
3606                 .help   = "Allow writes to a mounted partition",
3607                 .def    = "0",
3608                 .category = FIO_OPT_C_FILE,
3609                 .group  = FIO_OPT_G_FILENAME,
3610         },
3611         {
3612                 .name   = "pre_read",
3613                 .lname  = "Pre-read files",
3614                 .type   = FIO_OPT_BOOL,
3615                 .off1   = offsetof(struct thread_options, pre_read),
3616                 .help   = "Pre-read files before starting official testing",
3617                 .def    = "0",
3618                 .category = FIO_OPT_C_FILE,
3619                 .group  = FIO_OPT_G_INVALID,
3620         },
3621 #ifdef FIO_HAVE_CPU_AFFINITY
3622         {
3623                 .name   = "cpumask",
3624                 .lname  = "CPU mask",
3625                 .type   = FIO_OPT_INT,
3626                 .cb     = str_cpumask_cb,
3627                 .off1   = offsetof(struct thread_options, cpumask),
3628                 .help   = "CPU affinity mask",
3629                 .category = FIO_OPT_C_GENERAL,
3630                 .group  = FIO_OPT_G_CRED,
3631         },
3632         {
3633                 .name   = "cpus_allowed",
3634                 .lname  = "CPUs allowed",
3635                 .type   = FIO_OPT_STR,
3636                 .cb     = str_cpus_allowed_cb,
3637                 .off1   = offsetof(struct thread_options, cpumask),
3638                 .help   = "Set CPUs allowed",
3639                 .category = FIO_OPT_C_GENERAL,
3640                 .group  = FIO_OPT_G_CRED,
3641         },
3642         {
3643                 .name   = "cpus_allowed_policy",
3644                 .lname  = "CPUs allowed distribution policy",
3645                 .type   = FIO_OPT_STR,
3646                 .off1   = offsetof(struct thread_options, cpus_allowed_policy),
3647                 .help   = "Distribution policy for cpus_allowed",
3648                 .parent = "cpus_allowed",
3649                 .prio   = 1,
3650                 .posval = {
3651                           { .ival = "shared",
3652                             .oval = FIO_CPUS_SHARED,
3653                             .help = "Mask shared between threads",
3654                           },
3655                           { .ival = "split",
3656                             .oval = FIO_CPUS_SPLIT,
3657                             .help = "Mask split between threads",
3658                           },
3659                 },
3660                 .category = FIO_OPT_C_GENERAL,
3661                 .group  = FIO_OPT_G_CRED,
3662         },
3663 #else
3664         {
3665                 .name   = "cpumask",
3666                 .lname  = "CPU mask",
3667                 .type   = FIO_OPT_UNSUPPORTED,
3668                 .help   = "Your platform does not support CPU affinities",
3669         },
3670         {
3671                 .name   = "cpus_allowed",
3672                 .lname  = "CPUs allowed",
3673                 .type   = FIO_OPT_UNSUPPORTED,
3674                 .help   = "Your platform does not support CPU affinities",
3675         },
3676         {
3677                 .name   = "cpus_allowed_policy",
3678                 .lname  = "CPUs allowed distribution policy",
3679                 .type   = FIO_OPT_UNSUPPORTED,
3680                 .help   = "Your platform does not support CPU affinities",
3681         },
3682 #endif
3683 #ifdef CONFIG_LIBNUMA
3684         {
3685                 .name   = "numa_cpu_nodes",
3686                 .lname  = "NUMA CPU Nodes",
3687                 .type   = FIO_OPT_STR,
3688                 .cb     = str_numa_cpunodes_cb,
3689                 .off1   = offsetof(struct thread_options, numa_cpunodes),
3690                 .help   = "NUMA CPU nodes bind",
3691                 .category = FIO_OPT_C_GENERAL,
3692                 .group  = FIO_OPT_G_INVALID,
3693         },
3694         {
3695                 .name   = "numa_mem_policy",
3696                 .lname  = "NUMA Memory Policy",
3697                 .type   = FIO_OPT_STR,
3698                 .cb     = str_numa_mpol_cb,
3699                 .off1   = offsetof(struct thread_options, numa_memnodes),
3700                 .help   = "NUMA memory policy setup",
3701                 .category = FIO_OPT_C_GENERAL,
3702                 .group  = FIO_OPT_G_INVALID,
3703         },
3704 #else
3705         {
3706                 .name   = "numa_cpu_nodes",
3707                 .lname  = "NUMA CPU Nodes",
3708                 .type   = FIO_OPT_UNSUPPORTED,
3709                 .help   = "Build fio with libnuma-dev(el) to enable this option",
3710         },
3711         {
3712                 .name   = "numa_mem_policy",
3713                 .lname  = "NUMA Memory Policy",
3714                 .type   = FIO_OPT_UNSUPPORTED,
3715                 .help   = "Build fio with libnuma-dev(el) to enable this option",
3716         },
3717 #endif
3718 #ifdef CONFIG_CUDA
3719         {
3720                 .name   = "gpu_dev_id",
3721                 .lname  = "GPU device ID",
3722                 .type   = FIO_OPT_INT,
3723                 .off1   = offsetof(struct thread_options, gpu_dev_id),
3724                 .help   = "Set GPU device ID for GPUDirect RDMA",
3725                 .def    = "0",
3726                 .category = FIO_OPT_C_GENERAL,
3727                 .group  = FIO_OPT_G_INVALID,
3728         },
3729 #endif
3730         {
3731                 .name   = "end_fsync",
3732                 .lname  = "End fsync",
3733                 .type   = FIO_OPT_BOOL,
3734                 .off1   = offsetof(struct thread_options, end_fsync),
3735                 .help   = "Include fsync at the end of job",
3736                 .def    = "0",
3737                 .category = FIO_OPT_C_FILE,
3738                 .group  = FIO_OPT_G_INVALID,
3739         },
3740         {
3741                 .name   = "fsync_on_close",
3742                 .lname  = "Fsync on close",
3743                 .type   = FIO_OPT_BOOL,
3744                 .off1   = offsetof(struct thread_options, fsync_on_close),
3745                 .help   = "fsync files on close",
3746                 .def    = "0",
3747                 .category = FIO_OPT_C_FILE,
3748                 .group  = FIO_OPT_G_INVALID,
3749         },
3750         {
3751                 .name   = "unlink",
3752                 .lname  = "Unlink file",
3753                 .type   = FIO_OPT_BOOL,
3754                 .off1   = offsetof(struct thread_options, unlink),
3755                 .help   = "Unlink created files after job has completed",
3756                 .def    = "0",
3757                 .category = FIO_OPT_C_FILE,
3758                 .group  = FIO_OPT_G_INVALID,
3759         },
3760         {
3761                 .name   = "unlink_each_loop",
3762                 .lname  = "Unlink file after each loop of a job",
3763                 .type   = FIO_OPT_BOOL,
3764                 .off1   = offsetof(struct thread_options, unlink_each_loop),
3765                 .help   = "Unlink created files after each loop in a job has completed",
3766                 .def    = "0",
3767                 .category = FIO_OPT_C_FILE,
3768                 .group  = FIO_OPT_G_INVALID,
3769         },
3770         {
3771                 .name   = "exitall",
3772                 .lname  = "Exit-all on terminate",
3773                 .type   = FIO_OPT_STR_SET,
3774                 .cb     = str_exitall_cb,
3775                 .help   = "Terminate all jobs when one exits",
3776                 .category = FIO_OPT_C_GENERAL,
3777                 .group  = FIO_OPT_G_PROCESS,
3778         },
3779         {
3780                 .name   = "exitall_on_error",
3781                 .lname  = "Exit-all on terminate in error",
3782                 .type   = FIO_OPT_STR_SET,
3783                 .off1   = offsetof(struct thread_options, exitall_error),
3784                 .help   = "Terminate all jobs when one exits in error",
3785                 .category = FIO_OPT_C_GENERAL,
3786                 .group  = FIO_OPT_G_PROCESS,
3787         },
3788         {
3789                 .name   = "stonewall",
3790                 .lname  = "Wait for previous",
3791                 .alias  = "wait_for_previous",
3792                 .type   = FIO_OPT_STR_SET,
3793                 .off1   = offsetof(struct thread_options, stonewall),
3794                 .help   = "Insert a hard barrier between this job and previous",
3795                 .category = FIO_OPT_C_GENERAL,
3796                 .group  = FIO_OPT_G_PROCESS,
3797         },
3798         {
3799                 .name   = "new_group",
3800                 .lname  = "New group",
3801                 .type   = FIO_OPT_STR_SET,
3802                 .off1   = offsetof(struct thread_options, new_group),
3803                 .help   = "Mark the start of a new group (for reporting)",
3804                 .category = FIO_OPT_C_GENERAL,
3805                 .group  = FIO_OPT_G_PROCESS,
3806         },
3807         {
3808                 .name   = "thread",
3809                 .lname  = "Thread",
3810                 .type   = FIO_OPT_STR_SET,
3811                 .off1   = offsetof(struct thread_options, use_thread),
3812                 .help   = "Use threads instead of processes",
3813 #ifdef CONFIG_NO_SHM
3814                 .def    = "1",
3815                 .no_warn_def = 1,
3816 #endif
3817                 .category = FIO_OPT_C_GENERAL,
3818                 .group  = FIO_OPT_G_PROCESS,
3819         },
3820         {
3821                 .name   = "per_job_logs",
3822                 .lname  = "Per Job Logs",
3823                 .type   = FIO_OPT_BOOL,
3824                 .off1   = offsetof(struct thread_options, per_job_logs),
3825                 .help   = "Include job number in generated log files or not",
3826                 .def    = "1",
3827                 .category = FIO_OPT_C_LOG,
3828                 .group  = FIO_OPT_G_INVALID,
3829         },
3830         {
3831                 .name   = "write_bw_log",
3832                 .lname  = "Write bandwidth log",
3833                 .type   = FIO_OPT_STR,
3834                 .off1   = offsetof(struct thread_options, bw_log_file),
3835                 .cb     = str_write_bw_log_cb,
3836                 .help   = "Write log of bandwidth during run",
3837                 .category = FIO_OPT_C_LOG,
3838                 .group  = FIO_OPT_G_INVALID,
3839         },
3840         {
3841                 .name   = "write_lat_log",
3842                 .lname  = "Write latency log",
3843                 .type   = FIO_OPT_STR,
3844                 .off1   = offsetof(struct thread_options, lat_log_file),
3845                 .cb     = str_write_lat_log_cb,
3846                 .help   = "Write log of latency during run",
3847                 .category = FIO_OPT_C_LOG,
3848                 .group  = FIO_OPT_G_INVALID,
3849         },
3850         {
3851                 .name   = "write_iops_log",
3852                 .lname  = "Write IOPS log",
3853                 .type   = FIO_OPT_STR,
3854                 .off1   = offsetof(struct thread_options, iops_log_file),
3855                 .cb     = str_write_iops_log_cb,
3856                 .help   = "Write log of IOPS during run",
3857                 .category = FIO_OPT_C_LOG,
3858                 .group  = FIO_OPT_G_INVALID,
3859         },
3860         {
3861                 .name   = "log_avg_msec",
3862                 .lname  = "Log averaging (msec)",
3863                 .type   = FIO_OPT_INT,
3864                 .off1   = offsetof(struct thread_options, log_avg_msec),
3865                 .help   = "Average bw/iops/lat logs over this period of time",