1#include <stdio.h>
2#include <stdlib.h>
3#include <unistd.h>
4#include <ctype.h>
5#include <string.h>
6#include <assert.h>
7#include <libgen.h>
8#include <fcntl.h>
9#include <sys/types.h>
10#include <sys/stat.h>
11
12#include "fio.h"
13#include "verify.h"
14#include "parse.h"
15#include "lib/fls.h"
16#include "options.h"
17
18#include "crc/crc32c.h"
19
20/*
21 * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
22 */
23static char *get_opt_postfix(const char *str)
24{
25	char *p = strstr(str, ":");
26
27	if (!p)
28		return NULL;
29
30	p++;
31	strip_blank_front(&p);
32	strip_blank_end(p);
33	return strdup(p);
34}
35
36static int converthexchartoint(char a)
37{
38	int base;
39
40	switch (a) {
41	case '0'...'9':
42		base = '0';
43		break;
44	case 'A'...'F':
45		base = 'A' - 10;
46		break;
47	case 'a'...'f':
48		base = 'a' - 10;
49		break;
50	default:
51		base = 0;
52	}
53	return a - base;
54}
55
56static int bs_cmp(const void *p1, const void *p2)
57{
58	const struct bssplit *bsp1 = p1;
59	const struct bssplit *bsp2 = p2;
60
61	return bsp1->perc < bsp2->perc;
62}
63
64static int bssplit_ddir(struct thread_options *o, int ddir, char *str)
65{
66	struct bssplit *bssplit;
67	unsigned int i, perc, perc_missing;
68	unsigned int max_bs, min_bs;
69	long long val;
70	char *fname;
71
72	o->bssplit_nr[ddir] = 4;
73	bssplit = malloc(4 * sizeof(struct bssplit));
74
75	i = 0;
76	max_bs = 0;
77	min_bs = -1;
78	while ((fname = strsep(&str, ":")) != NULL) {
79		char *perc_str;
80
81		if (!strlen(fname))
82			break;
83
84		/*
85		 * grow struct buffer, if needed
86		 */
87		if (i == o->bssplit_nr[ddir]) {
88			o->bssplit_nr[ddir] <<= 1;
89			bssplit = realloc(bssplit, o->bssplit_nr[ddir]
90						  * sizeof(struct bssplit));
91		}
92
93		perc_str = strstr(fname, "/");
94		if (perc_str) {
95			*perc_str = '\0';
96			perc_str++;
97			perc = atoi(perc_str);
98			if (perc > 100)
99				perc = 100;
100			else if (!perc)
101				perc = -1U;
102		} else
103			perc = -1U;
104
105		if (str_to_decimal(fname, &val, 1, o, 0, 0)) {
106			log_err("fio: bssplit conversion failed\n");
107			free(bssplit);
108			return 1;
109		}
110
111		if (val > max_bs)
112			max_bs = val;
113		if (val < min_bs)
114			min_bs = val;
115
116		bssplit[i].bs = val;
117		bssplit[i].perc = perc;
118		i++;
119	}
120
121	o->bssplit_nr[ddir] = i;
122
123	/*
124	 * Now check if the percentages add up, and how much is missing
125	 */
126	perc = perc_missing = 0;
127	for (i = 0; i < o->bssplit_nr[ddir]; i++) {
128		struct bssplit *bsp = &bssplit[i];
129
130		if (bsp->perc == -1U)
131			perc_missing++;
132		else
133			perc += bsp->perc;
134	}
135
136	if (perc > 100 && perc_missing > 1) {
137		log_err("fio: bssplit percentages add to more than 100%%\n");
138		free(bssplit);
139		return 1;
140	}
141
142	/*
143	 * If values didn't have a percentage set, divide the remains between
144	 * them.
145	 */
146	if (perc_missing) {
147		if (perc_missing == 1 && o->bssplit_nr[ddir] == 1)
148			perc = 100;
149		for (i = 0; i < o->bssplit_nr[ddir]; i++) {
150			struct bssplit *bsp = &bssplit[i];
151
152			if (bsp->perc == -1U)
153				bsp->perc = (100 - perc) / perc_missing;
154		}
155	}
156
157	o->min_bs[ddir] = min_bs;
158	o->max_bs[ddir] = max_bs;
159
160	/*
161	 * now sort based on percentages, for ease of lookup
162	 */
163	qsort(bssplit, o->bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
164	o->bssplit[ddir] = bssplit;
165	return 0;
166}
167
168static int str_bssplit_cb(void *data, const char *input)
169{
170	struct thread_data *td = data;
171	char *str, *p, *odir, *ddir;
172	int ret = 0;
173
174	if (parse_dryrun())
175		return 0;
176
177	p = str = strdup(input);
178
179	strip_blank_front(&str);
180	strip_blank_end(str);
181
182	odir = strchr(str, ',');
183	if (odir) {
184		ddir = strchr(odir + 1, ',');
185		if (ddir) {
186			ret = bssplit_ddir(&td->o, DDIR_TRIM, ddir + 1);
187			if (!ret)
188				*ddir = '\0';
189		} else {
190			char *op;
191
192			op = strdup(odir + 1);
193			ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
194
195			free(op);
196		}
197		if (!ret)
198			ret = bssplit_ddir(&td->o, DDIR_WRITE, odir + 1);
199		if (!ret) {
200			*odir = '\0';
201			ret = bssplit_ddir(&td->o, DDIR_READ, str);
202		}
203	} else {
204		char *op;
205
206		op = strdup(str);
207		ret = bssplit_ddir(&td->o, DDIR_WRITE, op);
208		free(op);
209
210		if (!ret) {
211			op = strdup(str);
212			ret = bssplit_ddir(&td->o, DDIR_TRIM, op);
213			free(op);
214		}
215		ret = bssplit_ddir(&td->o, DDIR_READ, str);
216	}
217
218	free(p);
219	return ret;
220}
221
222static int str2error(char *str)
223{
224	const char *err[] = { "EPERM", "ENOENT", "ESRCH", "EINTR", "EIO",
225			    "ENXIO", "E2BIG", "ENOEXEC", "EBADF",
226			    "ECHILD", "EAGAIN", "ENOMEM", "EACCES",
227			    "EFAULT", "ENOTBLK", "EBUSY", "EEXIST",
228			    "EXDEV", "ENODEV", "ENOTDIR", "EISDIR",
229			    "EINVAL", "ENFILE", "EMFILE", "ENOTTY",
230			    "ETXTBSY","EFBIG", "ENOSPC", "ESPIPE",
231			    "EROFS","EMLINK", "EPIPE", "EDOM", "ERANGE" };
232	int i = 0, num = sizeof(err) / sizeof(void *);
233
234	while (i < num) {
235		if (!strcmp(err[i], str))
236			return i + 1;
237		i++;
238	}
239	return 0;
240}
241
242static int ignore_error_type(struct thread_data *td, int etype, char *str)
243{
244	unsigned int i;
245	int *error;
246	char *fname;
247
248	if (etype >= ERROR_TYPE_CNT) {
249		log_err("Illegal error type\n");
250		return 1;
251	}
252
253	td->o.ignore_error_nr[etype] = 4;
254	error = malloc(4 * sizeof(struct bssplit));
255
256	i = 0;
257	while ((fname = strsep(&str, ":")) != NULL) {
258
259		if (!strlen(fname))
260			break;
261
262		/*
263		 * grow struct buffer, if needed
264		 */
265		if (i == td->o.ignore_error_nr[etype]) {
266			td->o.ignore_error_nr[etype] <<= 1;
267			error = realloc(error, td->o.ignore_error_nr[etype]
268						  * sizeof(int));
269		}
270		if (fname[0] == 'E') {
271			error[i] = str2error(fname);
272		} else {
273			error[i] = atoi(fname);
274			if (error[i] < 0)
275				error[i] = -error[i];
276		}
277		if (!error[i]) {
278			log_err("Unknown error %s, please use number value \n",
279				  fname);
280			free(error);
281			return 1;
282		}
283		i++;
284	}
285	if (i) {
286		td->o.continue_on_error |= 1 << etype;
287		td->o.ignore_error_nr[etype] = i;
288		td->o.ignore_error[etype] = error;
289	} else
290		free(error);
291
292	return 0;
293
294}
295
296static int str_ignore_error_cb(void *data, const char *input)
297{
298	struct thread_data *td = data;
299	char *str, *p, *n;
300	int type = 0, ret = 1;
301
302	if (parse_dryrun())
303		return 0;
304
305	p = str = strdup(input);
306
307	strip_blank_front(&str);
308	strip_blank_end(str);
309
310	while (p) {
311		n = strchr(p, ',');
312		if (n)
313			*n++ = '\0';
314		ret = ignore_error_type(td, type, p);
315		if (ret)
316			break;
317		p = n;
318		type++;
319	}
320	free(str);
321	return ret;
322}
323
324static int str_rw_cb(void *data, const char *str)
325{
326	struct thread_data *td = data;
327	struct thread_options *o = &td->o;
328	char *nr;
329
330	if (parse_dryrun())
331		return 0;
332
333	o->ddir_seq_nr = 1;
334	o->ddir_seq_add = 0;
335
336	nr = get_opt_postfix(str);
337	if (!nr)
338		return 0;
339
340	if (td_random(td))
341		o->ddir_seq_nr = atoi(nr);
342	else {
343		long long val;
344
345		if (str_to_decimal(nr, &val, 1, o, 0, 0)) {
346			log_err("fio: rw postfix parsing failed\n");
347			free(nr);
348			return 1;
349		}
350
351		o->ddir_seq_add = val;
352	}
353
354	free(nr);
355	return 0;
356}
357
358static int str_mem_cb(void *data, const char *mem)
359{
360	struct thread_data *td = data;
361
362	if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP)
363		td->o.mmapfile = get_opt_postfix(mem);
364
365	return 0;
366}
367
368static int fio_clock_source_cb(void *data, const char *str)
369{
370	struct thread_data *td = data;
371
372	fio_clock_source = td->o.clocksource;
373	fio_clock_source_set = 1;
374	fio_clock_init();
375	return 0;
376}
377
378static int str_rwmix_read_cb(void *data, unsigned long long *val)
379{
380	struct thread_data *td = data;
381
382	td->o.rwmix[DDIR_READ] = *val;
383	td->o.rwmix[DDIR_WRITE] = 100 - *val;
384	return 0;
385}
386
387static int str_rwmix_write_cb(void *data, unsigned long long *val)
388{
389	struct thread_data *td = data;
390
391	td->o.rwmix[DDIR_WRITE] = *val;
392	td->o.rwmix[DDIR_READ] = 100 - *val;
393	return 0;
394}
395
396static int str_exitall_cb(void)
397{
398	exitall_on_terminate = 1;
399	return 0;
400}
401
402#ifdef FIO_HAVE_CPU_AFFINITY
403int fio_cpus_split(os_cpu_mask_t *mask, unsigned int cpu_index)
404{
405	unsigned int i, index, cpus_in_mask;
406	const long max_cpu = cpus_online();
407
408	cpus_in_mask = fio_cpu_count(mask);
409	cpu_index = cpu_index % cpus_in_mask;
410
411	index = 0;
412	for (i = 0; i < max_cpu; i++) {
413		if (!fio_cpu_isset(mask, i))
414			continue;
415
416		if (cpu_index != index)
417			fio_cpu_clear(mask, i);
418
419		index++;
420	}
421
422	return fio_cpu_count(mask);
423}
424
425static int str_cpumask_cb(void *data, unsigned long long *val)
426{
427	struct thread_data *td = data;
428	unsigned int i;
429	long max_cpu;
430	int ret;
431
432	if (parse_dryrun())
433		return 0;
434
435	ret = fio_cpuset_init(&td->o.cpumask);
436	if (ret < 0) {
437		log_err("fio: cpuset_init failed\n");
438		td_verror(td, ret, "fio_cpuset_init");
439		return 1;
440	}
441
442	max_cpu = cpus_online();
443
444	for (i = 0; i < sizeof(int) * 8; i++) {
445		if ((1 << i) & *val) {
446			if (i > max_cpu) {
447				log_err("fio: CPU %d too large (max=%ld)\n", i,
448								max_cpu);
449				return 1;
450			}
451			dprint(FD_PARSE, "set cpu allowed %d\n", i);
452			fio_cpu_set(&td->o.cpumask, i);
453		}
454	}
455
456	return 0;
457}
458
459static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
460			    const char *input)
461{
462	char *cpu, *str, *p;
463	long max_cpu;
464	int ret = 0;
465
466	ret = fio_cpuset_init(mask);
467	if (ret < 0) {
468		log_err("fio: cpuset_init failed\n");
469		td_verror(td, ret, "fio_cpuset_init");
470		return 1;
471	}
472
473	p = str = strdup(input);
474
475	strip_blank_front(&str);
476	strip_blank_end(str);
477
478	max_cpu = cpus_online();
479
480	while ((cpu = strsep(&str, ",")) != NULL) {
481		char *str2, *cpu2;
482		int icpu, icpu2;
483
484		if (!strlen(cpu))
485			break;
486
487		str2 = cpu;
488		icpu2 = -1;
489		while ((cpu2 = strsep(&str2, "-")) != NULL) {
490			if (!strlen(cpu2))
491				break;
492
493			icpu2 = atoi(cpu2);
494		}
495
496		icpu = atoi(cpu);
497		if (icpu2 == -1)
498			icpu2 = icpu;
499		while (icpu <= icpu2) {
500			if (icpu >= FIO_MAX_CPUS) {
501				log_err("fio: your OS only supports up to"
502					" %d CPUs\n", (int) FIO_MAX_CPUS);
503				ret = 1;
504				break;
505			}
506			if (icpu > max_cpu) {
507				log_err("fio: CPU %d too large (max=%ld)\n",
508							icpu, max_cpu);
509				ret = 1;
510				break;
511			}
512
513			dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
514			fio_cpu_set(mask, icpu);
515			icpu++;
516		}
517		if (ret)
518			break;
519	}
520
521	free(p);
522	return ret;
523}
524
525static int str_cpus_allowed_cb(void *data, const char *input)
526{
527	struct thread_data *td = data;
528
529	if (parse_dryrun())
530		return 0;
531
532	return set_cpus_allowed(td, &td->o.cpumask, input);
533}
534
535static int str_verify_cpus_allowed_cb(void *data, const char *input)
536{
537	struct thread_data *td = data;
538
539	return set_cpus_allowed(td, &td->o.verify_cpumask, input);
540}
541#endif
542
543#ifdef CONFIG_LIBNUMA
544static int str_numa_cpunodes_cb(void *data, char *input)
545{
546	struct thread_data *td = data;
547	struct bitmask *verify_bitmask;
548
549	if (parse_dryrun())
550		return 0;
551
552	/* numa_parse_nodestring() parses a character string list
553	 * of nodes into a bit mask. The bit mask is allocated by
554	 * numa_allocate_nodemask(), so it should be freed by
555	 * numa_free_nodemask().
556	 */
557	verify_bitmask = numa_parse_nodestring(input);
558	if (verify_bitmask == NULL) {
559		log_err("fio: numa_parse_nodestring failed\n");
560		td_verror(td, 1, "str_numa_cpunodes_cb");
561		return 1;
562	}
563	numa_free_nodemask(verify_bitmask);
564
565	td->o.numa_cpunodes = strdup(input);
566	return 0;
567}
568
569static int str_numa_mpol_cb(void *data, char *input)
570{
571	struct thread_data *td = data;
572	const char * const policy_types[] =
573		{ "default", "prefer", "bind", "interleave", "local", NULL };
574	int i;
575	char *nodelist;
576	struct bitmask *verify_bitmask;
577
578	if (parse_dryrun())
579		return 0;
580
581	nodelist = strchr(input, ':');
582	if (nodelist) {
583		/* NUL-terminate mode */
584		*nodelist++ = '\0';
585	}
586
587	for (i = 0; i <= MPOL_LOCAL; i++) {
588		if (!strcmp(input, policy_types[i])) {
589			td->o.numa_mem_mode = i;
590			break;
591		}
592	}
593	if (i > MPOL_LOCAL) {
594		log_err("fio: memory policy should be: default, prefer, bind, interleave, local\n");
595		goto out;
596	}
597
598	switch (td->o.numa_mem_mode) {
599	case MPOL_PREFERRED:
600		/*
601		 * Insist on a nodelist of one node only
602		 */
603		if (nodelist) {
604			char *rest = nodelist;
605			while (isdigit(*rest))
606				rest++;
607			if (*rest) {
608				log_err("fio: one node only for \'prefer\'\n");
609				goto out;
610			}
611		} else {
612			log_err("fio: one node is needed for \'prefer\'\n");
613			goto out;
614		}
615		break;
616	case MPOL_INTERLEAVE:
617		/*
618		 * Default to online nodes with memory if no nodelist
619		 */
620		if (!nodelist)
621			nodelist = strdup("all");
622		break;
623	case MPOL_LOCAL:
624	case MPOL_DEFAULT:
625		/*
626		 * Don't allow a nodelist
627		 */
628		if (nodelist) {
629			log_err("fio: NO nodelist for \'local\'\n");
630			goto out;
631		}
632		break;
633	case MPOL_BIND:
634		/*
635		 * Insist on a nodelist
636		 */
637		if (!nodelist) {
638			log_err("fio: a nodelist is needed for \'bind\'\n");
639			goto out;
640		}
641		break;
642	}
643
644
645	/* numa_parse_nodestring() parses a character string list
646	 * of nodes into a bit mask. The bit mask is allocated by
647	 * numa_allocate_nodemask(), so it should be freed by
648	 * numa_free_nodemask().
649	 */
650	switch (td->o.numa_mem_mode) {
651	case MPOL_PREFERRED:
652		td->o.numa_mem_prefer_node = atoi(nodelist);
653		break;
654	case MPOL_INTERLEAVE:
655	case MPOL_BIND:
656		verify_bitmask = numa_parse_nodestring(nodelist);
657		if (verify_bitmask == NULL) {
658			log_err("fio: numa_parse_nodestring failed\n");
659			td_verror(td, 1, "str_numa_memnodes_cb");
660			return 1;
661		}
662		td->o.numa_memnodes = strdup(nodelist);
663		numa_free_nodemask(verify_bitmask);
664
665		break;
666	case MPOL_LOCAL:
667	case MPOL_DEFAULT:
668	default:
669		break;
670	}
671
672	return 0;
673out:
674	return 1;
675}
676#endif
677
678static int str_fst_cb(void *data, const char *str)
679{
680	struct thread_data *td = data;
681	char *nr = get_opt_postfix(str);
682
683	td->file_service_nr = 1;
684	if (nr) {
685		td->file_service_nr = atoi(nr);
686		free(nr);
687	}
688
689	return 0;
690}
691
692#ifdef CONFIG_SYNC_FILE_RANGE
693static int str_sfr_cb(void *data, const char *str)
694{
695	struct thread_data *td = data;
696	char *nr = get_opt_postfix(str);
697
698	td->sync_file_range_nr = 1;
699	if (nr) {
700		td->sync_file_range_nr = atoi(nr);
701		free(nr);
702	}
703
704	return 0;
705}
706#endif
707
708static int str_random_distribution_cb(void *data, const char *str)
709{
710	struct thread_data *td = data;
711	double val;
712	char *nr;
713
714	if (parse_dryrun())
715		return 0;
716
717	if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
718		val = FIO_DEF_ZIPF;
719	else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
720		val = FIO_DEF_PARETO;
721	else
722		return 0;
723
724	nr = get_opt_postfix(str);
725	if (nr && !str_to_float(nr, &val, 0)) {
726		log_err("fio: random postfix parsing failed\n");
727		free(nr);
728		return 1;
729	}
730
731	free(nr);
732
733	if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) {
734		if (val == 1.00) {
735			log_err("fio: zipf theta must different than 1.0\n");
736			return 1;
737		}
738		td->o.zipf_theta.u.f = val;
739	} else {
740		if (val <= 0.00 || val >= 1.00) {
741			log_err("fio: pareto input out of range (0 < input < 1.0)\n");
742			return 1;
743		}
744		td->o.pareto_h.u.f = val;
745	}
746
747	return 0;
748}
749
750/*
751 * Return next name in the string. Files are separated with ':'. If the ':'
752 * is escaped with a '\', then that ':' is part of the filename and does not
753 * indicate a new file.
754 */
755static char *get_next_name(char **ptr)
756{
757	char *str = *ptr;
758	char *p, *start;
759
760	if (!str || !strlen(str))
761		return NULL;
762
763	start = str;
764	do {
765		/*
766		 * No colon, we are done
767		 */
768		p = strchr(str, ':');
769		if (!p) {
770			*ptr = NULL;
771			break;
772		}
773
774		/*
775		 * We got a colon, but it's the first character. Skip and
776		 * continue
777		 */
778		if (p == start) {
779			str = ++start;
780			continue;
781		}
782
783		if (*(p - 1) != '\\') {
784			*p = '\0';
785			*ptr = p + 1;
786			break;
787		}
788
789		memmove(p - 1, p, strlen(p) + 1);
790		str = p;
791	} while (1);
792
793	return start;
794}
795
796
797static int get_max_name_idx(char *input)
798{
799	unsigned int cur_idx;
800	char *str, *p;
801
802	p = str = strdup(input);
803	for (cur_idx = 0; ; cur_idx++)
804		if (get_next_name(&str) == NULL)
805			break;
806
807	free(p);
808	return cur_idx;
809}
810
811/*
812 * Returns the directory at the index, indexes > entires will be
813 * assigned via modulo division of the index
814 */
815int set_name_idx(char *target, char *input, int index)
816{
817	unsigned int cur_idx;
818	int len;
819	char *fname, *str, *p;
820
821	p = str = strdup(input);
822
823	index %= get_max_name_idx(input);
824	for (cur_idx = 0; cur_idx <= index; cur_idx++)
825		fname = get_next_name(&str);
826
827	len = sprintf(target, "%s/", fname);
828	free(p);
829
830	return len;
831}
832
833static int str_filename_cb(void *data, const char *input)
834{
835	struct thread_data *td = data;
836	char *fname, *str, *p;
837
838	p = str = strdup(input);
839
840	strip_blank_front(&str);
841	strip_blank_end(str);
842
843	if (!td->files_index)
844		td->o.nr_files = 0;
845
846	while ((fname = get_next_name(&str)) != NULL) {
847		if (!strlen(fname))
848			break;
849		add_file(td, fname, 0, 1);
850	}
851
852	free(p);
853	return 0;
854}
855
856static int str_directory_cb(void *data, const char fio_unused *unused)
857{
858	struct thread_data *td = data;
859	struct stat sb;
860	char *dirname, *str, *p;
861	int ret = 0;
862
863	if (parse_dryrun())
864		return 0;
865
866	p = str = strdup(td->o.directory);
867	while ((dirname = get_next_name(&str)) != NULL) {
868		if (lstat(dirname, &sb) < 0) {
869			ret = errno;
870
871			log_err("fio: %s is not a directory\n", dirname);
872			td_verror(td, ret, "lstat");
873			goto out;
874		}
875		if (!S_ISDIR(sb.st_mode)) {
876			log_err("fio: %s is not a directory\n", dirname);
877			ret = 1;
878			goto out;
879		}
880	}
881
882out:
883	free(p);
884	return ret;
885}
886
887static int str_opendir_cb(void *data, const char fio_unused *str)
888{
889	struct thread_data *td = data;
890
891	if (parse_dryrun())
892		return 0;
893
894	if (!td->files_index)
895		td->o.nr_files = 0;
896
897	return add_dir_files(td, td->o.opendir);
898}
899
900static int pattern_cb(char *pattern, unsigned int max_size,
901		      const char *input, unsigned int *pattern_bytes)
902{
903	long off;
904	int i = 0, j = 0, len, k, base = 10;
905	uint32_t pattern_length;
906	char *loc1, *loc2;
907
908	/*
909	 * Check if it's a string input
910	 */
911	loc1 = strchr(input, '\"');
912	if (loc1) {
913		do {
914			loc1++;
915			if (*loc1 == '\0' || *loc1 == '\"')
916				break;
917
918			pattern[i] = *loc1;
919			i++;
920		} while (i < max_size);
921
922		if (!i)
923			return 1;
924
925		goto fill;
926	}
927
928	/*
929	 * No string, find out if it's decimal or hexidecimal
930	 */
931	loc1 = strstr(input, "0x");
932	loc2 = strstr(input, "0X");
933	if (loc1 || loc2)
934		base = 16;
935	off = strtol(input, NULL, base);
936	if (off != LONG_MAX || errno != ERANGE) {
937		while (off) {
938			pattern[i] = off & 0xff;
939			off >>= 8;
940			i++;
941		}
942	} else {
943		len = strlen(input);
944		k = len - 1;
945		if (base == 16) {
946			if (loc1)
947				j = loc1 - input + 2;
948			else
949				j = loc2 - input + 2;
950		} else
951			return 1;
952		if (len - j < max_size * 2) {
953			while (k >= j) {
954				off = converthexchartoint(input[k--]);
955				if (k >= j)
956					off += (converthexchartoint(input[k--])
957						* 16);
958				pattern[i++] = (char) off;
959			}
960		}
961	}
962
963	/*
964	 * Fill the pattern all the way to the end. This greatly reduces
965	 * the number of memcpy's we have to do when verifying the IO.
966	 */
967fill:
968	pattern_length = i;
969	while (i > 1 && i * 2 <= max_size) {
970		memcpy(&pattern[i], &pattern[0], i);
971		i *= 2;
972	}
973
974	/*
975	 * Fill remainder, if the pattern multiple ends up not being
976	 * max_size.
977	 */
978	while (i > 1 && i < max_size) {
979		unsigned int b = min(pattern_length, max_size - i);
980
981		memcpy(&pattern[i], &pattern[0], b);
982		i += b;
983	}
984
985	if (i == 1) {
986		/*
987		 * The code in verify_io_u_pattern assumes a single byte
988		 * pattern fills the whole verify pattern buffer.
989		 */
990		memset(pattern, pattern[0], max_size);
991	}
992
993	*pattern_bytes = i;
994	return 0;
995}
996
997static int str_buffer_pattern_cb(void *data, const char *input)
998{
999	struct thread_data *td = data;
1000	int ret;
1001
1002	ret = pattern_cb(td->o.buffer_pattern, MAX_PATTERN_SIZE, input,
1003				&td->o.buffer_pattern_bytes);
1004
1005	if (!ret && td->o.buffer_pattern_bytes) {
1006		if (!td->o.compress_percentage)
1007			td->o.refill_buffers = 0;
1008		td->o.scramble_buffers = 0;
1009		td->o.zero_buffers = 0;
1010	} else {
1011		log_err("fio: failed parsing pattern `%s`\n", input);
1012		ret = 1;
1013	}
1014
1015	return ret;
1016}
1017
1018static int str_buffer_compress_cb(void *data, unsigned long long *il)
1019{
1020	struct thread_data *td = data;
1021
1022	td->flags |= TD_F_COMPRESS;
1023	td->o.compress_percentage = *il;
1024	return 0;
1025}
1026
1027static int str_dedupe_cb(void *data, unsigned long long *il)
1028{
1029	struct thread_data *td = data;
1030
1031	td->flags |= TD_F_COMPRESS;
1032	td->o.dedupe_percentage = *il;
1033	td->o.refill_buffers = 1;
1034	return 0;
1035}
1036
1037static int str_verify_pattern_cb(void *data, const char *input)
1038{
1039	struct thread_data *td = data;
1040	int ret;
1041
1042	ret = pattern_cb(td->o.verify_pattern, MAX_PATTERN_SIZE, input,
1043				&td->o.verify_pattern_bytes);
1044
1045	/*
1046	 * VERIFY_META could already be set
1047	 */
1048	if (!ret && td->o.verify == VERIFY_NONE)
1049		td->o.verify = VERIFY_PATTERN;
1050
1051	return ret;
1052}
1053
1054static int str_gtod_reduce_cb(void *data, int *il)
1055{
1056	struct thread_data *td = data;
1057	int val = *il;
1058
1059	td->o.disable_lat = !!val;
1060	td->o.disable_clat = !!val;
1061	td->o.disable_slat = !!val;
1062	td->o.disable_bw = !!val;
1063	td->o.clat_percentiles = !val;
1064	if (val)
1065		td->tv_cache_mask = 63;
1066
1067	return 0;
1068}
1069
1070static int str_size_cb(void *data, unsigned long long *__val)
1071{
1072	struct thread_data *td = data;
1073	unsigned long long v = *__val;
1074
1075	if (parse_is_percent(v)) {
1076		td->o.size = 0;
1077		td->o.size_percent = -1ULL - v;
1078	} else
1079		td->o.size = v;
1080
1081	return 0;
1082}
1083
1084static int rw_verify(struct fio_option *o, void *data)
1085{
1086	struct thread_data *td = data;
1087
1088	if (read_only && td_write(td)) {
1089		log_err("fio: job <%s> has write bit set, but fio is in"
1090			" read-only mode\n", td->o.name);
1091		return 1;
1092	}
1093
1094	return 0;
1095}
1096
1097static int gtod_cpu_verify(struct fio_option *o, void *data)
1098{
1099#ifndef FIO_HAVE_CPU_AFFINITY
1100	struct thread_data *td = data;
1101
1102	if (td->o.gtod_cpu) {
1103		log_err("fio: platform must support CPU affinity for"
1104			"gettimeofday() offloading\n");
1105		return 1;
1106	}
1107#endif
1108
1109	return 0;
1110}
1111
1112/*
1113 * Option grouping
1114 */
1115static struct opt_group fio_opt_groups[] = {
1116	{
1117		.name	= "General",
1118		.mask	= FIO_OPT_C_GENERAL,
1119	},
1120	{
1121		.name	= "I/O",
1122		.mask	= FIO_OPT_C_IO,
1123	},
1124	{
1125		.name	= "File",
1126		.mask	= FIO_OPT_C_FILE,
1127	},
1128	{
1129		.name	= "Statistics",
1130		.mask	= FIO_OPT_C_STAT,
1131	},
1132	{
1133		.name	= "Logging",
1134		.mask	= FIO_OPT_C_LOG,
1135	},
1136	{
1137		.name	= "Profiles",
1138		.mask	= FIO_OPT_C_PROFILE,
1139	},
1140	{
1141		.name	= NULL,
1142	},
1143};
1144
1145static struct opt_group *__opt_group_from_mask(struct opt_group *ogs, unsigned int *mask,
1146					       unsigned int inv_mask)
1147{
1148	struct opt_group *og;
1149	int i;
1150
1151	if (*mask == inv_mask || !*mask)
1152		return NULL;
1153
1154	for (i = 0; ogs[i].name; i++) {
1155		og = &ogs[i];
1156
1157		if (*mask & og->mask) {
1158			*mask &= ~(og->mask);
1159			return og;
1160		}
1161	}
1162
1163	return NULL;
1164}
1165
1166struct opt_group *opt_group_from_mask(unsigned int *mask)
1167{
1168	return __opt_group_from_mask(fio_opt_groups, mask, FIO_OPT_C_INVALID);
1169}
1170
1171static struct opt_group fio_opt_cat_groups[] = {
1172	{
1173		.name	= "Latency profiling",
1174		.mask	= FIO_OPT_G_LATPROF,
1175	},
1176	{
1177		.name	= "Rate",
1178		.mask	= FIO_OPT_G_RATE,
1179	},
1180	{
1181		.name	= "Zone",
1182		.mask	= FIO_OPT_G_ZONE,
1183	},
1184	{
1185		.name	= "Read/write mix",
1186		.mask	= FIO_OPT_G_RWMIX,
1187	},
1188	{
1189		.name	= "Verify",
1190		.mask	= FIO_OPT_G_VERIFY,
1191	},
1192	{
1193		.name	= "Trim",
1194		.mask	= FIO_OPT_G_TRIM,
1195	},
1196	{
1197		.name	= "I/O Logging",
1198		.mask	= FIO_OPT_G_IOLOG,
1199	},
1200	{
1201		.name	= "I/O Depth",
1202		.mask	= FIO_OPT_G_IO_DEPTH,
1203	},
1204	{
1205		.name	= "I/O Flow",
1206		.mask	= FIO_OPT_G_IO_FLOW,
1207	},
1208	{
1209		.name	= "Description",
1210		.mask	= FIO_OPT_G_DESC,
1211	},
1212	{
1213		.name	= "Filename",
1214		.mask	= FIO_OPT_G_FILENAME,
1215	},
1216	{
1217		.name	= "General I/O",
1218		.mask	= FIO_OPT_G_IO_BASIC,
1219	},
1220	{
1221		.name	= "Cgroups",
1222		.mask	= FIO_OPT_G_CGROUP,
1223	},
1224	{
1225		.name	= "Runtime",
1226		.mask	= FIO_OPT_G_RUNTIME,
1227	},
1228	{
1229		.name	= "Process",
1230		.mask	= FIO_OPT_G_PROCESS,
1231	},
1232	{
1233		.name	= "Job credentials / priority",
1234		.mask	= FIO_OPT_G_CRED,
1235	},
1236	{
1237		.name	= "Clock settings",
1238		.mask	= FIO_OPT_G_CLOCK,
1239	},
1240	{
1241		.name	= "I/O Type",
1242		.mask	= FIO_OPT_G_IO_TYPE,
1243	},
1244	{
1245		.name	= "I/O Thinktime",
1246		.mask	= FIO_OPT_G_THINKTIME,
1247	},
1248	{
1249		.name	= "Randomizations",
1250		.mask	= FIO_OPT_G_RANDOM,
1251	},
1252	{
1253		.name	= "I/O buffers",
1254		.mask	= FIO_OPT_G_IO_BUF,
1255	},
1256	{
1257		.name	= "Tiobench profile",
1258		.mask	= FIO_OPT_G_TIOBENCH,
1259	},
1260
1261	{
1262		.name	= NULL,
1263	}
1264};
1265
1266struct opt_group *opt_group_cat_from_mask(unsigned int *mask)
1267{
1268	return __opt_group_from_mask(fio_opt_cat_groups, mask, FIO_OPT_G_INVALID);
1269}
1270
1271/*
1272 * Map of job/command line options
1273 */
1274struct fio_option fio_options[FIO_MAX_OPTS] = {
1275	{
1276		.name	= "description",
1277		.lname	= "Description of job",
1278		.type	= FIO_OPT_STR_STORE,
1279		.off1	= td_var_offset(description),
1280		.help	= "Text job description",
1281		.category = FIO_OPT_C_GENERAL,
1282		.group	= FIO_OPT_G_DESC,
1283	},
1284	{
1285		.name	= "name",
1286		.lname	= "Job name",
1287		.type	= FIO_OPT_STR_STORE,
1288		.off1	= td_var_offset(name),
1289		.help	= "Name of this job",
1290		.category = FIO_OPT_C_GENERAL,
1291		.group	= FIO_OPT_G_DESC,
1292	},
1293	{
1294		.name	= "filename",
1295		.lname	= "Filename(s)",
1296		.type	= FIO_OPT_STR_STORE,
1297		.off1	= td_var_offset(filename),
1298		.cb	= str_filename_cb,
1299		.prio	= -1, /* must come after "directory" */
1300		.help	= "File(s) to use for the workload",
1301		.category = FIO_OPT_C_FILE,
1302		.group	= FIO_OPT_G_FILENAME,
1303	},
1304	{
1305		.name	= "directory",
1306		.lname	= "Directory",
1307		.type	= FIO_OPT_STR_STORE,
1308		.off1	= td_var_offset(directory),
1309		.cb	= str_directory_cb,
1310		.help	= "Directory to store files in",
1311		.category = FIO_OPT_C_FILE,
1312		.group	= FIO_OPT_G_FILENAME,
1313	},
1314	{
1315		.name	= "filename_format",
1316		.type	= FIO_OPT_STR_STORE,
1317		.off1	= td_var_offset(filename_format),
1318		.prio	= -1, /* must come after "directory" */
1319		.help	= "Override default $jobname.$jobnum.$filenum naming",
1320		.def	= "$jobname.$jobnum.$filenum",
1321		.category = FIO_OPT_C_FILE,
1322		.group	= FIO_OPT_G_FILENAME,
1323	},
1324	{
1325		.name	= "lockfile",
1326		.lname	= "Lockfile",
1327		.type	= FIO_OPT_STR,
1328		.off1	= td_var_offset(file_lock_mode),
1329		.help	= "Lock file when doing IO to it",
1330		.prio	= 1,
1331		.parent	= "filename",
1332		.hide	= 0,
1333		.def	= "none",
1334		.category = FIO_OPT_C_FILE,
1335		.group	= FIO_OPT_G_FILENAME,
1336		.posval = {
1337			  { .ival = "none",
1338			    .oval = FILE_LOCK_NONE,
1339			    .help = "No file locking",
1340			  },
1341			  { .ival = "exclusive",
1342			    .oval = FILE_LOCK_EXCLUSIVE,
1343			    .help = "Exclusive file lock",
1344			  },
1345			  {
1346			    .ival = "readwrite",
1347			    .oval = FILE_LOCK_READWRITE,
1348			    .help = "Read vs write lock",
1349			  },
1350		},
1351	},
1352	{
1353		.name	= "opendir",
1354		.lname	= "Open directory",
1355		.type	= FIO_OPT_STR_STORE,
1356		.off1	= td_var_offset(opendir),
1357		.cb	= str_opendir_cb,
1358		.help	= "Recursively add files from this directory and down",
1359		.category = FIO_OPT_C_FILE,
1360		.group	= FIO_OPT_G_FILENAME,
1361	},
1362	{
1363		.name	= "rw",
1364		.lname	= "Read/write",
1365		.alias	= "readwrite",
1366		.type	= FIO_OPT_STR,
1367		.cb	= str_rw_cb,
1368		.off1	= td_var_offset(td_ddir),
1369		.help	= "IO direction",
1370		.def	= "read",
1371		.verify	= rw_verify,
1372		.category = FIO_OPT_C_IO,
1373		.group	= FIO_OPT_G_IO_BASIC,
1374		.posval = {
1375			  { .ival = "read",
1376			    .oval = TD_DDIR_READ,
1377			    .help = "Sequential read",
1378			  },
1379			  { .ival = "write",
1380			    .oval = TD_DDIR_WRITE,
1381			    .help = "Sequential write",
1382			  },
1383			  { .ival = "trim",
1384			    .oval = TD_DDIR_TRIM,
1385			    .help = "Sequential trim",
1386			  },
1387			  { .ival = "randread",
1388			    .oval = TD_DDIR_RANDREAD,
1389			    .help = "Random read",
1390			  },
1391			  { .ival = "randwrite",
1392			    .oval = TD_DDIR_RANDWRITE,
1393			    .help = "Random write",
1394			  },
1395			  { .ival = "randtrim",
1396			    .oval = TD_DDIR_RANDTRIM,
1397			    .help = "Random trim",
1398			  },
1399			  { .ival = "rw",
1400			    .oval = TD_DDIR_RW,
1401			    .help = "Sequential read and write mix",
1402			  },
1403			  { .ival = "readwrite",
1404			    .oval = TD_DDIR_RW,
1405			    .help = "Sequential read and write mix",
1406			  },
1407			  { .ival = "randrw",
1408			    .oval = TD_DDIR_RANDRW,
1409			    .help = "Random read and write mix"
1410			  },
1411		},
1412	},
1413	{
1414		.name	= "rw_sequencer",
1415		.lname	= "RW Sequencer",
1416		.type	= FIO_OPT_STR,
1417		.off1	= td_var_offset(rw_seq),
1418		.help	= "IO offset generator modifier",
1419		.def	= "sequential",
1420		.category = FIO_OPT_C_IO,
1421		.group	= FIO_OPT_G_IO_BASIC,
1422		.posval = {
1423			  { .ival = "sequential",
1424			    .oval = RW_SEQ_SEQ,
1425			    .help = "Generate sequential offsets",
1426			  },
1427			  { .ival = "identical",
1428			    .oval = RW_SEQ_IDENT,
1429			    .help = "Generate identical offsets",
1430			  },
1431		},
1432	},
1433
1434	{
1435		.name	= "ioengine",
1436		.lname	= "IO Engine",
1437		.type	= FIO_OPT_STR_STORE,
1438		.off1	= td_var_offset(ioengine),
1439		.help	= "IO engine to use",
1440		.def	= FIO_PREFERRED_ENGINE,
1441		.category = FIO_OPT_C_IO,
1442		.group	= FIO_OPT_G_IO_BASIC,
1443		.posval	= {
1444			  { .ival = "sync",
1445			    .help = "Use read/write",
1446			  },
1447			  { .ival = "psync",
1448			    .help = "Use pread/pwrite",
1449			  },
1450			  { .ival = "vsync",
1451			    .help = "Use readv/writev",
1452			  },
1453#ifdef CONFIG_PWRITEV
1454			  { .ival = "pvsync",
1455			    .help = "Use preadv/pwritev",
1456			  },
1457#endif
1458#ifdef CONFIG_LIBAIO
1459			  { .ival = "libaio",
1460			    .help = "Linux native asynchronous IO",
1461			  },
1462#endif
1463#ifdef CONFIG_POSIXAIO
1464			  { .ival = "posixaio",
1465			    .help = "POSIX asynchronous IO",
1466			  },
1467#endif
1468#ifdef CONFIG_SOLARISAIO
1469			  { .ival = "solarisaio",
1470			    .help = "Solaris native asynchronous IO",
1471			  },
1472#endif
1473#ifdef CONFIG_WINDOWSAIO
1474			  { .ival = "windowsaio",
1475			    .help = "Windows native asynchronous IO"
1476			  },
1477#endif
1478#ifdef CONFIG_RBD
1479			  { .ival = "rbd",
1480			    .help = "Rados Block Device asynchronous IO"
1481			  },
1482#endif
1483			  { .ival = "mmap",
1484			    .help = "Memory mapped IO"
1485			  },
1486#ifdef CONFIG_LINUX_SPLICE
1487			  { .ival = "splice",
1488			    .help = "splice/vmsplice based IO",
1489			  },
1490			  { .ival = "netsplice",
1491			    .help = "splice/vmsplice to/from the network",
1492			  },
1493#endif
1494#ifdef FIO_HAVE_SGIO
1495			  { .ival = "sg",
1496			    .help = "SCSI generic v3 IO",
1497			  },
1498#endif
1499			  { .ival = "null",
1500			    .help = "Testing engine (no data transfer)",
1501			  },
1502			  { .ival = "net",
1503			    .help = "Network IO",
1504			  },
1505			  { .ival = "cpuio",
1506			    .help = "CPU cycle burner engine",
1507			  },
1508#ifdef CONFIG_GUASI
1509			  { .ival = "guasi",
1510			    .help = "GUASI IO engine",
1511			  },
1512#endif
1513#ifdef FIO_HAVE_BINJECT
1514			  { .ival = "binject",
1515			    .help = "binject direct inject block engine",
1516			  },
1517#endif
1518#ifdef CONFIG_RDMA
1519			  { .ival = "rdma",
1520			    .help = "RDMA IO engine",
1521			  },
1522#endif
1523#ifdef CONFIG_FUSION_AW
1524			  { .ival = "fusion-aw-sync",
1525			    .help = "Fusion-io atomic write engine",
1526			  },
1527#endif
1528#ifdef CONFIG_LINUX_EXT4_MOVE_EXTENT
1529			  { .ival = "e4defrag",
1530			    .help = "ext4 defrag engine",
1531			  },
1532#endif
1533#ifdef CONFIG_LINUX_FALLOCATE
1534			  { .ival = "falloc",
1535			    .help = "fallocate() file based engine",
1536			  },
1537#endif
1538#ifdef CONFIG_GFAPI
1539			  { .ival = "gfapi",
1540			    .help = "Glusterfs libgfapi(sync) based engine"
1541			  },
1542			  { .ival = "gfapi_async",
1543			    .help = "Glusterfs libgfapi(async) based engine"
1544			  },
1545#endif
1546#ifdef CONFIG_LIBHDFS
1547			  { .ival = "libhdfs",
1548			    .help = "Hadoop Distributed Filesystem (HDFS) engine"
1549			  },
1550#endif
1551			  { .ival = "external",
1552			    .help = "Load external engine (append name)",
1553			  },
1554		},
1555	},
1556	{
1557		.name	= "iodepth",
1558		.lname	= "IO Depth",
1559		.type	= FIO_OPT_INT,
1560		.off1	= td_var_offset(iodepth),
1561		.help	= "Number of IO buffers to keep in flight",
1562		.minval = 1,
1563		.interval = 1,
1564		.def	= "1",
1565		.category = FIO_OPT_C_IO,
1566		.group	= FIO_OPT_G_IO_BASIC,
1567	},
1568	{
1569		.name	= "iodepth_batch",
1570		.lname	= "IO Depth batch",
1571		.alias	= "iodepth_batch_submit",
1572		.type	= FIO_OPT_INT,
1573		.off1	= td_var_offset(iodepth_batch),
1574		.help	= "Number of IO buffers to submit in one go",
1575		.parent	= "iodepth",
1576		.hide	= 1,
1577		.minval	= 1,
1578		.interval = 1,
1579		.def	= "1",
1580		.category = FIO_OPT_C_IO,
1581		.group	= FIO_OPT_G_IO_BASIC,
1582	},
1583	{
1584		.name	= "iodepth_batch_complete",
1585		.lname	= "IO Depth batch complete",
1586		.type	= FIO_OPT_INT,
1587		.off1	= td_var_offset(iodepth_batch_complete),
1588		.help	= "Number of IO buffers to retrieve in one go",
1589		.parent	= "iodepth",
1590		.hide	= 1,
1591		.minval	= 0,
1592		.interval = 1,
1593		.def	= "1",
1594		.category = FIO_OPT_C_IO,
1595		.group	= FIO_OPT_G_IO_BASIC,
1596	},
1597	{
1598		.name	= "iodepth_low",
1599		.lname	= "IO Depth batch low",
1600		.type	= FIO_OPT_INT,
1601		.off1	= td_var_offset(iodepth_low),
1602		.help	= "Low water mark for queuing depth",
1603		.parent	= "iodepth",
1604		.hide	= 1,
1605		.interval = 1,
1606		.category = FIO_OPT_C_IO,
1607		.group	= FIO_OPT_G_IO_BASIC,
1608	},
1609	{
1610		.name	= "size",
1611		.lname	= "Size",
1612		.type	= FIO_OPT_STR_VAL,
1613		.cb	= str_size_cb,
1614		.off1	= td_var_offset(size),
1615		.help	= "Total size of device or files",
1616		.interval = 1024 * 1024,
1617		.category = FIO_OPT_C_IO,
1618		.group	= FIO_OPT_G_INVALID,
1619	},
1620	{
1621		.name	= "io_size",
1622		.alias	= "io_limit",
1623		.lname	= "IO Size",
1624		.type	= FIO_OPT_STR_VAL,
1625		.off1	= td_var_offset(io_limit),
1626		.interval = 1024 * 1024,
1627		.category = FIO_OPT_C_IO,
1628		.group	= FIO_OPT_G_INVALID,
1629	},
1630	{
1631		.name	= "fill_device",
1632		.lname	= "Fill device",
1633		.alias	= "fill_fs",
1634		.type	= FIO_OPT_BOOL,
1635		.off1	= td_var_offset(fill_device),
1636		.help	= "Write until an ENOSPC error occurs",
1637		.def	= "0",
1638		.category = FIO_OPT_C_FILE,
1639		.group	= FIO_OPT_G_INVALID,
1640	},
1641	{
1642		.name	= "filesize",
1643		.lname	= "File size",
1644		.type	= FIO_OPT_STR_VAL,
1645		.off1	= td_var_offset(file_size_low),
1646		.off2	= td_var_offset(file_size_high),
1647		.minval = 1,
1648		.help	= "Size of individual files",
1649		.interval = 1024 * 1024,
1650		.category = FIO_OPT_C_FILE,
1651		.group	= FIO_OPT_G_INVALID,
1652	},
1653	{
1654		.name	= "file_append",
1655		.lname	= "File append",
1656		.type	= FIO_OPT_BOOL,
1657		.off1	= td_var_offset(file_append),
1658		.help	= "IO will start at the end of the file(s)",
1659		.def	= "0",
1660		.category = FIO_OPT_C_FILE,
1661		.group	= FIO_OPT_G_INVALID,
1662	},
1663	{
1664		.name	= "offset",
1665		.lname	= "IO offset",
1666		.alias	= "fileoffset",
1667		.type	= FIO_OPT_STR_VAL,
1668		.off1	= td_var_offset(start_offset),
1669		.help	= "Start IO from this offset",
1670		.def	= "0",
1671		.interval = 1024 * 1024,
1672		.category = FIO_OPT_C_IO,
1673		.group	= FIO_OPT_G_INVALID,
1674	},
1675	{
1676		.name	= "offset_increment",
1677		.lname	= "IO offset increment",
1678		.type	= FIO_OPT_STR_VAL,
1679		.off1	= td_var_offset(offset_increment),
1680		.help	= "What is the increment from one offset to the next",
1681		.parent = "offset",
1682		.hide	= 1,
1683		.def	= "0",
1684		.interval = 1024 * 1024,
1685		.category = FIO_OPT_C_IO,
1686		.group	= FIO_OPT_G_INVALID,
1687	},
1688	{
1689		.name	= "number_ios",
1690		.lname	= "Number of IOs to perform",
1691		.type	= FIO_OPT_STR_VAL,
1692		.off1	= td_var_offset(number_ios),
1693		.help	= "Force job completion after this number of IOs",
1694		.def	= "0",
1695		.category = FIO_OPT_C_IO,
1696		.group	= FIO_OPT_G_INVALID,
1697	},
1698	{
1699		.name	= "bs",
1700		.lname	= "Block size",
1701		.alias	= "blocksize",
1702		.type	= FIO_OPT_INT,
1703		.off1	= td_var_offset(bs[DDIR_READ]),
1704		.off2	= td_var_offset(bs[DDIR_WRITE]),
1705		.off3	= td_var_offset(bs[DDIR_TRIM]),
1706		.minval = 1,
1707		.help	= "Block size unit",
1708		.def	= "4k",
1709		.parent = "rw",
1710		.hide	= 1,
1711		.interval = 512,
1712		.category = FIO_OPT_C_IO,
1713		.group	= FIO_OPT_G_INVALID,
1714	},
1715	{
1716		.name	= "ba",
1717		.lname	= "Block size align",
1718		.alias	= "blockalign",
1719		.type	= FIO_OPT_INT,
1720		.off1	= td_var_offset(ba[DDIR_READ]),
1721		.off2	= td_var_offset(ba[DDIR_WRITE]),
1722		.off3	= td_var_offset(ba[DDIR_TRIM]),
1723		.minval	= 1,
1724		.help	= "IO block offset alignment",
1725		.parent	= "rw",
1726		.hide	= 1,
1727		.interval = 512,
1728		.category = FIO_OPT_C_IO,
1729		.group	= FIO_OPT_G_INVALID,
1730	},
1731	{
1732		.name	= "bsrange",
1733		.lname	= "Block size range",
1734		.alias	= "blocksize_range",
1735		.type	= FIO_OPT_RANGE,
1736		.off1	= td_var_offset(min_bs[DDIR_READ]),
1737		.off2	= td_var_offset(max_bs[DDIR_READ]),
1738		.off3	= td_var_offset(min_bs[DDIR_WRITE]),
1739		.off4	= td_var_offset(max_bs[DDIR_WRITE]),
1740		.off5	= td_var_offset(min_bs[DDIR_TRIM]),
1741		.off6	= td_var_offset(max_bs[DDIR_TRIM]),
1742		.minval = 1,
1743		.help	= "Set block size range (in more detail than bs)",
1744		.parent = "rw",
1745		.hide	= 1,
1746		.interval = 4096,
1747		.category = FIO_OPT_C_IO,
1748		.group	= FIO_OPT_G_INVALID,
1749	},
1750	{
1751		.name	= "bssplit",
1752		.lname	= "Block size split",
1753		.type	= FIO_OPT_STR,
1754		.cb	= str_bssplit_cb,
1755		.off1	= td_var_offset(bssplit),
1756		.help	= "Set a specific mix of block sizes",
1757		.parent	= "rw",
1758		.hide	= 1,
1759		.category = FIO_OPT_C_IO,
1760		.group	= FIO_OPT_G_INVALID,
1761	},
1762	{
1763		.name	= "bs_unaligned",
1764		.lname	= "Block size unaligned",
1765		.alias	= "blocksize_unaligned",
1766		.type	= FIO_OPT_STR_SET,
1767		.off1	= td_var_offset(bs_unaligned),
1768		.help	= "Don't sector align IO buffer sizes",
1769		.parent = "rw",
1770		.hide	= 1,
1771		.category = FIO_OPT_C_IO,
1772		.group	= FIO_OPT_G_INVALID,
1773	},
1774	{
1775		.name	= "bs_is_seq_rand",
1776		.lname	= "Block size division is seq/random (not read/write)",
1777		.type	= FIO_OPT_BOOL,
1778		.off1	= td_var_offset(bs_is_seq_rand),
1779		.help	= "Consider any blocksize setting to be sequential,random",
1780		.def	= "0",
1781		.parent = "blocksize",
1782		.category = FIO_OPT_C_IO,
1783		.group	= FIO_OPT_G_INVALID,
1784	},
1785	{
1786		.name	= "randrepeat",
1787		.lname	= "Random repeatable",
1788		.type	= FIO_OPT_BOOL,
1789		.off1	= td_var_offset(rand_repeatable),
1790		.help	= "Use repeatable random IO pattern",
1791		.def	= "1",
1792		.parent = "rw",
1793		.hide	= 1,
1794		.category = FIO_OPT_C_IO,
1795		.group	= FIO_OPT_G_RANDOM,
1796	},
1797	{
1798		.name	= "randseed",
1799		.lname	= "The random generator seed",
1800		.type	= FIO_OPT_STR_VAL,
1801		.off1	= td_var_offset(rand_seed),
1802		.help	= "Set the random generator seed value",
1803		.parent = "rw",
1804		.category = FIO_OPT_C_IO,
1805		.group	= FIO_OPT_G_RANDOM,
1806	},
1807	{
1808		.name	= "use_os_rand",
1809		.lname	= "Use OS random",
1810		.type	= FIO_OPT_DEPRECATED,
1811		.off1	= td_var_offset(dep_use_os_rand),
1812		.category = FIO_OPT_C_IO,
1813		.group	= FIO_OPT_G_RANDOM,
1814	},
1815	{
1816		.name	= "norandommap",
1817		.lname	= "No randommap",
1818		.type	= FIO_OPT_STR_SET,
1819		.off1	= td_var_offset(norandommap),
1820		.help	= "Accept potential duplicate random blocks",
1821		.parent = "rw",
1822		.hide	= 1,
1823		.hide_on_set = 1,
1824		.category = FIO_OPT_C_IO,
1825		.group	= FIO_OPT_G_RANDOM,
1826	},
1827	{
1828		.name	= "softrandommap",
1829		.lname	= "Soft randommap",
1830		.type	= FIO_OPT_BOOL,
1831		.off1	= td_var_offset(softrandommap),
1832		.help	= "Set norandommap if randommap allocation fails",
1833		.parent	= "norandommap",
1834		.hide	= 1,
1835		.def	= "0",
1836		.category = FIO_OPT_C_IO,
1837		.group	= FIO_OPT_G_RANDOM,
1838	},
1839	{
1840		.name	= "random_generator",
1841		.type	= FIO_OPT_STR,
1842		.off1	= td_var_offset(random_generator),
1843		.help	= "Type of random number generator to use",
1844		.def	= "tausworthe",
1845		.posval	= {
1846			  { .ival = "tausworthe",
1847			    .oval = FIO_RAND_GEN_TAUSWORTHE,
1848			    .help = "Strong Tausworthe generator",
1849			  },
1850			  { .ival = "lfsr",
1851			    .oval = FIO_RAND_GEN_LFSR,
1852			    .help = "Variable length LFSR",
1853			  },
1854		},
1855		.category = FIO_OPT_C_IO,
1856		.group	= FIO_OPT_G_RANDOM,
1857	},
1858	{
1859		.name	= "random_distribution",
1860		.type	= FIO_OPT_STR,
1861		.off1	= td_var_offset(random_distribution),
1862		.cb	= str_random_distribution_cb,
1863		.help	= "Random offset distribution generator",
1864		.def	= "random",
1865		.posval	= {
1866			  { .ival = "random",
1867			    .oval = FIO_RAND_DIST_RANDOM,
1868			    .help = "Completely random",
1869			  },
1870			  { .ival = "zipf",
1871			    .oval = FIO_RAND_DIST_ZIPF,
1872			    .help = "Zipf distribution",
1873			  },
1874			  { .ival = "pareto",
1875			    .oval = FIO_RAND_DIST_PARETO,
1876			    .help = "Pareto distribution",
1877			  },
1878		},
1879		.category = FIO_OPT_C_IO,
1880		.group	= FIO_OPT_G_RANDOM,
1881	},
1882	{
1883		.name	= "percentage_random",
1884		.lname	= "Percentage Random",
1885		.type	= FIO_OPT_INT,
1886		.off1	= td_var_offset(perc_rand[DDIR_READ]),
1887		.off2	= td_var_offset(perc_rand[DDIR_WRITE]),
1888		.off3	= td_var_offset(perc_rand[DDIR_TRIM]),
1889		.maxval	= 100,
1890		.help	= "Percentage of seq/random mix that should be random",
1891		.def	= "100,100,100",
1892		.interval = 5,
1893		.inverse = "percentage_sequential",
1894		.category = FIO_OPT_C_IO,
1895		.group	= FIO_OPT_G_RANDOM,
1896	},
1897	{
1898		.name	= "percentage_sequential",
1899		.lname	= "Percentage Sequential",
1900		.type	= FIO_OPT_DEPRECATED,
1901		.category = FIO_OPT_C_IO,
1902		.group	= FIO_OPT_G_RANDOM,
1903	},
1904	{
1905		.name	= "allrandrepeat",
1906		.type	= FIO_OPT_BOOL,
1907		.off1	= td_var_offset(allrand_repeatable),
1908		.help	= "Use repeatable random numbers for everything",
1909		.def	= "0",
1910		.category = FIO_OPT_C_IO,
1911		.group	= FIO_OPT_G_RANDOM,
1912	},
1913	{
1914		.name	= "nrfiles",
1915		.lname	= "Number of files",
1916		.alias	= "nr_files",
1917		.type	= FIO_OPT_INT,
1918		.off1	= td_var_offset(nr_files),
1919		.help	= "Split job workload between this number of files",
1920		.def	= "1",
1921		.interval = 1,
1922		.category = FIO_OPT_C_FILE,
1923		.group	= FIO_OPT_G_INVALID,
1924	},
1925	{
1926		.name	= "openfiles",
1927		.lname	= "Number of open files",
1928		.type	= FIO_OPT_INT,
1929		.off1	= td_var_offset(open_files),
1930		.help	= "Number of files to keep open at the same time",
1931		.category = FIO_OPT_C_FILE,
1932		.group	= FIO_OPT_G_INVALID,
1933	},
1934	{
1935		.name	= "file_service_type",
1936		.lname	= "File service type",
1937		.type	= FIO_OPT_STR,
1938		.cb	= str_fst_cb,
1939		.off1	= td_var_offset(file_service_type),
1940		.help	= "How to select which file to service next",
1941		.def	= "roundrobin",
1942		.category = FIO_OPT_C_FILE,
1943		.group	= FIO_OPT_G_INVALID,
1944		.posval	= {
1945			  { .ival = "random",
1946			    .oval = FIO_FSERVICE_RANDOM,
1947			    .help = "Choose a file at random",
1948			  },
1949			  { .ival = "roundrobin",
1950			    .oval = FIO_FSERVICE_RR,
1951			    .help = "Round robin select files",
1952			  },
1953			  { .ival = "sequential",
1954			    .oval = FIO_FSERVICE_SEQ,
1955			    .help = "Finish one file before moving to the next",
1956			  },
1957		},
1958		.parent = "nrfiles",
1959		.hide	= 1,
1960	},
1961#ifdef CONFIG_POSIX_FALLOCATE
1962	{
1963		.name	= "fallocate",
1964		.lname	= "Fallocate",
1965		.type	= FIO_OPT_STR,
1966		.off1	= td_var_offset(fallocate_mode),
1967		.help	= "Whether pre-allocation is performed when laying out files",
1968		.def	= "posix",
1969		.category = FIO_OPT_C_FILE,
1970		.group	= FIO_OPT_G_INVALID,
1971		.posval	= {
1972			  { .ival = "none",
1973			    .oval = FIO_FALLOCATE_NONE,
1974			    .help = "Do not pre-allocate space",
1975			  },
1976			  { .ival = "posix",
1977			    .oval = FIO_FALLOCATE_POSIX,
1978			    .help = "Use posix_fallocate()",
1979			  },
1980#ifdef CONFIG_LINUX_FALLOCATE
1981			  { .ival = "keep",
1982			    .oval = FIO_FALLOCATE_KEEP_SIZE,
1983			    .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
1984			  },
1985#endif
1986			  /* Compatibility with former boolean values */
1987			  { .ival = "0",
1988			    .oval = FIO_FALLOCATE_NONE,
1989			    .help = "Alias for 'none'",
1990			  },
1991			  { .ival = "1",
1992			    .oval = FIO_FALLOCATE_POSIX,
1993			    .help = "Alias for 'posix'",
1994			  },
1995		},
1996	},
1997#endif	/* CONFIG_POSIX_FALLOCATE */
1998	{
1999		.name	= "fadvise_hint",
2000		.lname	= "Fadvise hint",
2001		.type	= FIO_OPT_BOOL,
2002		.off1	= td_var_offset(fadvise_hint),
2003		.help	= "Use fadvise() to advise the kernel on IO pattern",
2004		.def	= "1",
2005		.category = FIO_OPT_C_FILE,
2006		.group	= FIO_OPT_G_INVALID,
2007	},
2008	{
2009		.name	= "fsync",
2010		.lname	= "Fsync",
2011		.type	= FIO_OPT_INT,
2012		.off1	= td_var_offset(fsync_blocks),
2013		.help	= "Issue fsync for writes every given number of blocks",
2014		.def	= "0",
2015		.interval = 1,
2016		.category = FIO_OPT_C_FILE,
2017		.group	= FIO_OPT_G_INVALID,
2018	},
2019	{
2020		.name	= "fdatasync",
2021		.lname	= "Fdatasync",
2022		.type	= FIO_OPT_INT,
2023		.off1	= td_var_offset(fdatasync_blocks),
2024		.help	= "Issue fdatasync for writes every given number of blocks",
2025		.def	= "0",
2026		.interval = 1,
2027		.category = FIO_OPT_C_FILE,
2028		.group	= FIO_OPT_G_INVALID,
2029	},
2030	{
2031		.name	= "write_barrier",
2032		.lname	= "Write barrier",
2033		.type	= FIO_OPT_INT,
2034		.off1	= td_var_offset(barrier_blocks),
2035		.help	= "Make every Nth write a barrier write",
2036		.def	= "0",
2037		.interval = 1,
2038		.category = FIO_OPT_C_IO,
2039		.group	= FIO_OPT_G_INVALID,
2040	},
2041#ifdef CONFIG_SYNC_FILE_RANGE
2042	{
2043		.name	= "sync_file_range",
2044		.lname	= "Sync file range",
2045		.posval	= {
2046			  { .ival = "wait_before",
2047			    .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
2048			    .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
2049			    .orval  = 1,
2050			  },
2051			  { .ival = "write",
2052			    .oval = SYNC_FILE_RANGE_WRITE,
2053			    .help = "SYNC_FILE_RANGE_WRITE",
2054			    .orval  = 1,
2055			  },
2056			  {
2057			    .ival = "wait_after",
2058			    .oval = SYNC_FILE_RANGE_WAIT_AFTER,
2059			    .help = "SYNC_FILE_RANGE_WAIT_AFTER",
2060			    .orval  = 1,
2061			  },
2062		},
2063		.type	= FIO_OPT_STR_MULTI,
2064		.cb	= str_sfr_cb,
2065		.off1	= td_var_offset(sync_file_range),
2066		.help	= "Use sync_file_range()",
2067		.category = FIO_OPT_C_FILE,
2068		.group	= FIO_OPT_G_INVALID,
2069	},
2070#endif
2071	{
2072		.name	= "direct",
2073		.lname	= "Direct I/O",
2074		.type	= FIO_OPT_BOOL,
2075		.off1	= td_var_offset(odirect),
2076		.help	= "Use O_DIRECT IO (negates buffered)",
2077		.def	= "0",
2078		.inverse = "buffered",
2079		.category = FIO_OPT_C_IO,
2080		.group	= FIO_OPT_G_IO_TYPE,
2081	},
2082	{
2083		.name	= "atomic",
2084		.lname	= "Atomic I/O",
2085		.type	= FIO_OPT_BOOL,
2086		.off1	= td_var_offset(oatomic),
2087		.help	= "Use Atomic IO with O_DIRECT (implies O_DIRECT)",
2088		.def	= "0",
2089		.category = FIO_OPT_C_IO,
2090		.group	= FIO_OPT_G_IO_TYPE,
2091	},
2092	{
2093		.name	= "buffered",
2094		.lname	= "Buffered I/O",
2095		.type	= FIO_OPT_BOOL,
2096		.off1	= td_var_offset(odirect),
2097		.neg	= 1,
2098		.help	= "Use buffered IO (negates direct)",
2099		.def	= "1",
2100		.inverse = "direct",
2101		.category = FIO_OPT_C_IO,
2102		.group	= FIO_OPT_G_IO_TYPE,
2103	},
2104	{
2105		.name	= "overwrite",
2106		.lname	= "Overwrite",
2107		.type	= FIO_OPT_BOOL,
2108		.off1	= td_var_offset(overwrite),
2109		.help	= "When writing, set whether to overwrite current data",
2110		.def	= "0",
2111		.category = FIO_OPT_C_FILE,
2112		.group	= FIO_OPT_G_INVALID,
2113	},
2114	{
2115		.name	= "loops",
2116		.lname	= "Loops",
2117		.type	= FIO_OPT_INT,
2118		.off1	= td_var_offset(loops),
2119		.help	= "Number of times to run the job",
2120		.def	= "1",
2121		.interval = 1,
2122		.category = FIO_OPT_C_GENERAL,
2123		.group	= FIO_OPT_G_RUNTIME,
2124	},
2125	{
2126		.name	= "numjobs",
2127		.lname	= "Number of jobs",
2128		.type	= FIO_OPT_INT,
2129		.off1	= td_var_offset(numjobs),
2130		.help	= "Duplicate this job this many times",
2131		.def	= "1",
2132		.interval = 1,
2133		.category = FIO_OPT_C_GENERAL,
2134		.group	= FIO_OPT_G_RUNTIME,
2135	},
2136	{
2137		.name	= "startdelay",
2138		.lname	= "Start delay",
2139		.type	= FIO_OPT_STR_VAL_TIME,
2140		.off1	= td_var_offset(start_delay),
2141		.off2	= td_var_offset(start_delay_high),
2142		.help	= "Only start job when this period has passed",
2143		.def	= "0",
2144		.is_seconds = 1,
2145		.is_time = 1,
2146		.category = FIO_OPT_C_GENERAL,
2147		.group	= FIO_OPT_G_RUNTIME,
2148	},
2149	{
2150		.name	= "runtime",
2151		.lname	= "Runtime",
2152		.alias	= "timeout",
2153		.type	= FIO_OPT_STR_VAL_TIME,
2154		.off1	= td_var_offset(timeout),
2155		.help	= "Stop workload when this amount of time has passed",
2156		.def	= "0",
2157		.is_seconds = 1,
2158		.is_time = 1,
2159		.category = FIO_OPT_C_GENERAL,
2160		.group	= FIO_OPT_G_RUNTIME,
2161	},
2162	{
2163		.name	= "time_based",
2164		.lname	= "Time based",
2165		.type	= FIO_OPT_STR_SET,
2166		.off1	= td_var_offset(time_based),
2167		.help	= "Keep running until runtime/timeout is met",
2168		.category = FIO_OPT_C_GENERAL,
2169		.group	= FIO_OPT_G_RUNTIME,
2170	},
2171	{
2172		.name	= "verify_only",
2173		.lname	= "Verify only",
2174		.type	= FIO_OPT_STR_SET,
2175		.off1	= td_var_offset(verify_only),
2176		.help	= "Verifies previously written data is still valid",
2177		.category = FIO_OPT_C_GENERAL,
2178		.group	= FIO_OPT_G_RUNTIME,
2179	},
2180	{
2181		.name	= "ramp_time",
2182		.lname	= "Ramp time",
2183		.type	= FIO_OPT_STR_VAL_TIME,
2184		.off1	= td_var_offset(ramp_time),
2185		.help	= "Ramp up time before measuring performance",
2186		.is_seconds = 1,
2187		.is_time = 1,
2188		.category = FIO_OPT_C_GENERAL,
2189		.group	= FIO_OPT_G_RUNTIME,
2190	},
2191	{
2192		.name	= "clocksource",
2193		.lname	= "Clock source",
2194		.type	= FIO_OPT_STR,
2195		.cb	= fio_clock_source_cb,
2196		.off1	= td_var_offset(clocksource),
2197		.help	= "What type of timing source to use",
2198		.category = FIO_OPT_C_GENERAL,
2199		.group	= FIO_OPT_G_CLOCK,
2200		.posval	= {
2201#ifdef CONFIG_GETTIMEOFDAY
2202			  { .ival = "gettimeofday",
2203			    .oval = CS_GTOD,
2204			    .help = "Use gettimeofday(2) for timing",
2205			  },
2206#endif
2207#ifdef CONFIG_CLOCK_GETTIME
2208			  { .ival = "clock_gettime",
2209			    .oval = CS_CGETTIME,
2210			    .help = "Use clock_gettime(2) for timing",
2211			  },
2212#endif
2213#ifdef ARCH_HAVE_CPU_CLOCK
2214			  { .ival = "cpu",
2215			    .oval = CS_CPUCLOCK,
2216			    .help = "Use CPU private clock",
2217			  },
2218#endif
2219		},
2220	},
2221	{
2222		.name	= "mem",
2223		.alias	= "iomem",
2224		.lname	= "I/O Memory",
2225		.type	= FIO_OPT_STR,
2226		.cb	= str_mem_cb,
2227		.off1	= td_var_offset(mem_type),
2228		.help	= "Backing type for IO buffers",
2229		.def	= "malloc",
2230		.category = FIO_OPT_C_IO,
2231		.group	= FIO_OPT_G_INVALID,
2232		.posval	= {
2233			  { .ival = "malloc",
2234			    .oval = MEM_MALLOC,
2235			    .help = "Use malloc(3) for IO buffers",
2236			  },
2237#ifndef CONFIG_NO_SHM
2238			  { .ival = "shm",
2239			    .oval = MEM_SHM,
2240			    .help = "Use shared memory segments for IO buffers",
2241			  },
2242#ifdef FIO_HAVE_HUGETLB
2243			  { .ival = "shmhuge",
2244			    .oval = MEM_SHMHUGE,
2245			    .help = "Like shm, but use huge pages",
2246			  },
2247#endif
2248#endif
2249			  { .ival = "mmap",
2250			    .oval = MEM_MMAP,
2251			    .help = "Use mmap(2) (file or anon) for IO buffers",
2252			  },
2253#ifdef FIO_HAVE_HUGETLB
2254			  { .ival = "mmaphuge",
2255			    .oval = MEM_MMAPHUGE,
2256			    .help = "Like mmap, but use huge pages",
2257			  },
2258#endif
2259		  },
2260	},
2261	{
2262		.name	= "iomem_align",
2263		.alias	= "mem_align",
2264		.lname	= "I/O memory alignment",
2265		.type	= FIO_OPT_INT,
2266		.off1	= td_var_offset(mem_align),
2267		.minval	= 0,
2268		.help	= "IO memory buffer offset alignment",
2269		.def	= "0",
2270		.parent	= "iomem",
2271		.hide	= 1,
2272		.category = FIO_OPT_C_IO,
2273		.group	= FIO_OPT_G_INVALID,
2274	},
2275	{
2276		.name	= "verify",
2277		.lname	= "Verify",
2278		.type	= FIO_OPT_STR,
2279		.off1	= td_var_offset(verify),
2280		.help	= "Verify data written",
2281		.def	= "0",
2282		.category = FIO_OPT_C_IO,
2283		.group	= FIO_OPT_G_VERIFY,
2284		.posval = {
2285			  { .ival = "0",
2286			    .oval = VERIFY_NONE,
2287			    .help = "Don't do IO verification",
2288			  },
2289			  { .ival = "md5",
2290			    .oval = VERIFY_MD5,
2291			    .help = "Use md5 checksums for verification",
2292			  },
2293			  { .ival = "crc64",
2294			    .oval = VERIFY_CRC64,
2295			    .help = "Use crc64 checksums for verification",
2296			  },
2297			  { .ival = "crc32",
2298			    .oval = VERIFY_CRC32,
2299			    .help = "Use crc32 checksums for verification",
2300			  },
2301			  { .ival = "crc32c-intel",
2302			    .oval = VERIFY_CRC32C,
2303			    .help = "Use crc32c checksums for verification (hw assisted, if available)",
2304			  },
2305			  { .ival = "crc32c",
2306			    .oval = VERIFY_CRC32C,
2307			    .help = "Use crc32c checksums for verification (hw assisted, if available)",
2308			  },
2309			  { .ival = "crc16",
2310			    .oval = VERIFY_CRC16,
2311			    .help = "Use crc16 checksums for verification",
2312			  },
2313			  { .ival = "crc7",
2314			    .oval = VERIFY_CRC7,
2315			    .help = "Use crc7 checksums for verification",
2316			  },
2317			  { .ival = "sha1",
2318			    .oval = VERIFY_SHA1,
2319			    .help = "Use sha1 checksums for verification",
2320			  },
2321			  { .ival = "sha256",
2322			    .oval = VERIFY_SHA256,
2323			    .help = "Use sha256 checksums for verification",
2324			  },
2325			  { .ival = "sha512",
2326			    .oval = VERIFY_SHA512,
2327			    .help = "Use sha512 checksums for verification",
2328			  },
2329			  { .ival = "xxhash",
2330			    .oval = VERIFY_XXHASH,
2331			    .help = "Use xxhash checksums for verification",
2332			  },
2333			  { .ival = "meta",
2334			    .oval = VERIFY_META,
2335			    .help = "Use io information",
2336			  },
2337			  {
2338			    .ival = "null",
2339			    .oval = VERIFY_NULL,
2340			    .help = "Pretend to verify",
2341			  },
2342		},
2343	},
2344	{
2345		.name	= "do_verify",
2346		.lname	= "Perform verify step",
2347		.type	= FIO_OPT_BOOL,
2348		.off1	= td_var_offset(do_verify),
2349		.help	= "Run verification stage after write",
2350		.def	= "1",
2351		.parent = "verify",
2352		.hide	= 1,
2353		.category = FIO_OPT_C_IO,
2354		.group	= FIO_OPT_G_VERIFY,
2355	},
2356	{
2357		.name	= "verifysort",
2358		.lname	= "Verify sort",
2359		.type	= FIO_OPT_BOOL,
2360		.off1	= td_var_offset(verifysort),
2361		.help	= "Sort written verify blocks for read back",
2362		.def	= "1",
2363		.parent = "verify",
2364		.hide	= 1,
2365		.category = FIO_OPT_C_IO,
2366		.group	= FIO_OPT_G_VERIFY,
2367	},
2368	{
2369		.name	= "verifysort_nr",
2370		.type	= FIO_OPT_INT,
2371		.off1	= td_var_offset(verifysort_nr),
2372		.help	= "Pre-load and sort verify blocks for a read workload",
2373		.minval	= 0,
2374		.maxval	= 131072,
2375		.def	= "1024",
2376		.parent = "verify",
2377		.category = FIO_OPT_C_IO,
2378		.group	= FIO_OPT_G_VERIFY,
2379	},
2380	{
2381		.name   = "verify_interval",
2382		.lname	= "Verify interval",
2383		.type   = FIO_OPT_INT,
2384		.off1   = td_var_offset(verify_interval),
2385		.minval	= 2 * sizeof(struct verify_header),
2386		.help   = "Store verify buffer header every N bytes",
2387		.parent	= "verify",
2388		.hide	= 1,
2389		.interval = 2 * sizeof(struct verify_header),
2390		.category = FIO_OPT_C_IO,
2391		.group	= FIO_OPT_G_VERIFY,
2392	},
2393	{
2394		.name	= "verify_offset",
2395		.lname	= "Verify offset",
2396		.type	= FIO_OPT_INT,
2397		.help	= "Offset verify header location by N bytes",
2398		.off1	= td_var_offset(verify_offset),
2399		.minval	= sizeof(struct verify_header),
2400		.parent	= "verify",
2401		.hide	= 1,
2402		.category = FIO_OPT_C_IO,
2403		.group	= FIO_OPT_G_VERIFY,
2404	},
2405	{
2406		.name	= "verify_pattern",
2407		.lname	= "Verify pattern",
2408		.type	= FIO_OPT_STR,
2409		.cb	= str_verify_pattern_cb,
2410		.off1	= td_var_offset(verify_pattern),
2411		.help	= "Fill pattern for IO buffers",
2412		.parent	= "verify",
2413		.hide	= 1,
2414		.category = FIO_OPT_C_IO,
2415		.group	= FIO_OPT_G_VERIFY,
2416	},
2417	{
2418		.name	= "verify_fatal",
2419		.lname	= "Verify fatal",
2420		.type	= FIO_OPT_BOOL,
2421		.off1	= td_var_offset(verify_fatal),
2422		.def	= "0",
2423		.help	= "Exit on a single verify failure, don't continue",
2424		.parent = "verify",
2425		.hide	= 1,
2426		.category = FIO_OPT_C_IO,
2427		.group	= FIO_OPT_G_VERIFY,
2428	},
2429	{
2430		.name	= "verify_dump",
2431		.lname	= "Verify dump",
2432		.type	= FIO_OPT_BOOL,
2433		.off1	= td_var_offset(verify_dump),
2434		.def	= "0",
2435		.help	= "Dump contents of good and bad blocks on failure",
2436		.parent = "verify",
2437		.hide	= 1,
2438		.category = FIO_OPT_C_IO,
2439		.group	= FIO_OPT_G_VERIFY,
2440	},
2441	{
2442		.name	= "verify_async",
2443		.lname	= "Verify asynchronously",
2444		.type	= FIO_OPT_INT,
2445		.off1	= td_var_offset(verify_async),
2446		.def	= "0",
2447		.help	= "Number of async verifier threads to use",
2448		.parent	= "verify",
2449		.hide	= 1,
2450		.category = FIO_OPT_C_IO,
2451		.group	= FIO_OPT_G_VERIFY,
2452	},
2453	{
2454		.name	= "verify_backlog",
2455		.lname	= "Verify backlog",
2456		.type	= FIO_OPT_STR_VAL,
2457		.off1	= td_var_offset(verify_backlog),
2458		.help	= "Verify after this number of blocks are written",
2459		.parent	= "verify",
2460		.hide	= 1,
2461		.category = FIO_OPT_C_IO,
2462		.group	= FIO_OPT_G_VERIFY,
2463	},
2464	{
2465		.name	= "verify_backlog_batch",
2466		.lname	= "Verify backlog batch",
2467		.type	= FIO_OPT_INT,
2468		.off1	= td_var_offset(verify_batch),
2469		.help	= "Verify this number of IO blocks",
2470		.parent	= "verify",
2471		.hide	= 1,
2472		.category = FIO_OPT_C_IO,
2473		.group	= FIO_OPT_G_VERIFY,
2474	},
2475#ifdef FIO_HAVE_CPU_AFFINITY
2476	{
2477		.name	= "verify_async_cpus",
2478		.lname	= "Async verify CPUs",
2479		.type	= FIO_OPT_STR,
2480		.cb	= str_verify_cpus_allowed_cb,
2481		.off1	= td_var_offset(verify_cpumask),
2482		.help	= "Set CPUs allowed for async verify threads",
2483		.parent	= "verify_async",
2484		.hide	= 1,
2485		.category = FIO_OPT_C_IO,
2486		.group	= FIO_OPT_G_VERIFY,
2487	},
2488#endif
2489	{
2490		.name	= "experimental_verify",
2491		.off1	= td_var_offset(experimental_verify),
2492		.type	= FIO_OPT_BOOL,
2493		.help	= "Enable experimental verification",
2494		.parent	= "verify",
2495		.category = FIO_OPT_C_IO,
2496		.group	= FIO_OPT_G_VERIFY,
2497	},
2498	{
2499		.name	= "verify_state_load",
2500		.lname	= "Load verify state",
2501		.off1	= td_var_offset(verify_state),
2502		.type	= FIO_OPT_BOOL,
2503		.help	= "Load verify termination state",
2504		.parent	= "verify",
2505		.category = FIO_OPT_C_IO,
2506		.group	= FIO_OPT_G_VERIFY,
2507	},
2508	{
2509		.name	= "verify_state_save",
2510		.lname	= "Save verify state",
2511		.off1	= td_var_offset(verify_state_save),
2512		.type	= FIO_OPT_BOOL,
2513		.def	= "1",
2514		.help	= "Save verify state on termination",
2515		.parent	= "verify",
2516		.category = FIO_OPT_C_IO,
2517		.group	= FIO_OPT_G_VERIFY,
2518	},
2519#ifdef FIO_HAVE_TRIM
2520	{
2521		.name	= "trim_percentage",
2522		.lname	= "Trim percentage",
2523		.type	= FIO_OPT_INT,
2524		.off1	= td_var_offset(trim_percentage),
2525		.minval = 0,
2526		.maxval = 100,
2527		.help	= "Number of verify blocks to discard/trim",
2528		.parent	= "verify",
2529		.def	= "0",
2530		.interval = 1,
2531		.hide	= 1,
2532		.category = FIO_OPT_C_IO,
2533		.group	= FIO_OPT_G_TRIM,
2534	},
2535	{
2536		.name	= "trim_verify_zero",
2537		.lname	= "Verify trim zero",
2538		.type	= FIO_OPT_BOOL,
2539		.help	= "Verify that trim/discarded blocks are returned as zeroes",
2540		.off1	= td_var_offset(trim_zero),
2541		.parent	= "trim_percentage",
2542		.hide	= 1,
2543		.def	= "1",
2544		.category = FIO_OPT_C_IO,
2545		.group	= FIO_OPT_G_TRIM,
2546	},
2547	{
2548		.name	= "trim_backlog",
2549		.lname	= "Trim backlog",
2550		.type	= FIO_OPT_STR_VAL,
2551		.off1	= td_var_offset(trim_backlog),
2552		.help	= "Trim after this number of blocks are written",
2553		.parent	= "trim_percentage",
2554		.hide	= 1,
2555		.interval = 1,
2556		.category = FIO_OPT_C_IO,
2557		.group	= FIO_OPT_G_TRIM,
2558	},
2559	{
2560		.name	= "trim_backlog_batch",
2561		.lname	= "Trim backlog batch",
2562		.type	= FIO_OPT_INT,
2563		.off1	= td_var_offset(trim_batch),
2564		.help	= "Trim this number of IO blocks",
2565		.parent	= "trim_percentage",
2566		.hide	= 1,
2567		.interval = 1,
2568		.category = FIO_OPT_C_IO,
2569		.group	= FIO_OPT_G_TRIM,
2570	},
2571#endif
2572	{
2573		.name	= "write_iolog",
2574		.lname	= "Write I/O log",
2575		.type	= FIO_OPT_STR_STORE,
2576		.off1	= td_var_offset(write_iolog_file),
2577		.help	= "Store IO pattern to file",
2578		.category = FIO_OPT_C_IO,
2579		.group	= FIO_OPT_G_IOLOG,
2580	},
2581	{
2582		.name	= "read_iolog",
2583		.lname	= "Read I/O log",
2584		.type	= FIO_OPT_STR_STORE,
2585		.off1	= td_var_offset(read_iolog_file),
2586		.help	= "Playback IO pattern from file",
2587		.category = FIO_OPT_C_IO,
2588		.group	= FIO_OPT_G_IOLOG,
2589	},
2590	{
2591		.name	= "replay_no_stall",
2592		.lname	= "Don't stall on replay",
2593		.type	= FIO_OPT_BOOL,
2594		.off1	= td_var_offset(no_stall),
2595		.def	= "0",
2596		.parent	= "read_iolog",
2597		.hide	= 1,
2598		.help	= "Playback IO pattern file as fast as possible without stalls",
2599		.category = FIO_OPT_C_IO,
2600		.group	= FIO_OPT_G_IOLOG,
2601	},
2602	{
2603		.name	= "replay_redirect",
2604		.lname	= "Redirect device for replay",
2605		.type	= FIO_OPT_STR_STORE,
2606		.off1	= td_var_offset(replay_redirect),
2607		.parent	= "read_iolog",
2608		.hide	= 1,
2609		.help	= "Replay all I/O onto this device, regardless of trace device",
2610		.category = FIO_OPT_C_IO,
2611		.group	= FIO_OPT_G_IOLOG,
2612	},
2613	{
2614		.name	= "exec_prerun",
2615		.lname	= "Pre-execute runnable",
2616		.type	= FIO_OPT_STR_STORE,
2617		.off1	= td_var_offset(exec_prerun),
2618		.help	= "Execute this file prior to running job",
2619		.category = FIO_OPT_C_GENERAL,
2620		.group	= FIO_OPT_G_INVALID,
2621	},
2622	{
2623		.name	= "exec_postrun",
2624		.lname	= "Post-execute runnable",
2625		.type	= FIO_OPT_STR_STORE,
2626		.off1	= td_var_offset(exec_postrun),
2627		.help	= "Execute this file after running job",
2628		.category = FIO_OPT_C_GENERAL,
2629		.group	= FIO_OPT_G_INVALID,
2630	},
2631#ifdef FIO_HAVE_IOSCHED_SWITCH
2632	{
2633		.name	= "ioscheduler",
2634		.lname	= "I/O scheduler",
2635		.type	= FIO_OPT_STR_STORE,
2636		.off1	= td_var_offset(ioscheduler),
2637		.help	= "Use this IO scheduler on the backing device",
2638		.category = FIO_OPT_C_FILE,
2639		.group	= FIO_OPT_G_INVALID,
2640	},
2641#endif
2642	{
2643		.name	= "zonesize",
2644		.lname	= "Zone size",
2645		.type	= FIO_OPT_STR_VAL,
2646		.off1	= td_var_offset(zone_size),
2647		.help	= "Amount of data to read per zone",
2648		.def	= "0",
2649		.interval = 1024 * 1024,
2650		.category = FIO_OPT_C_IO,
2651		.group	= FIO_OPT_G_ZONE,
2652	},
2653	{
2654		.name	= "zonerange",
2655		.lname	= "Zone range",
2656		.type	= FIO_OPT_STR_VAL,
2657		.off1	= td_var_offset(zone_range),
2658		.help	= "Give size of an IO zone",
2659		.def	= "0",
2660		.interval = 1024 * 1024,
2661		.category = FIO_OPT_C_IO,
2662		.group	= FIO_OPT_G_ZONE,
2663	},
2664	{
2665		.name	= "zoneskip",
2666		.lname	= "Zone skip",
2667		.type	= FIO_OPT_STR_VAL,
2668		.off1	= td_var_offset(zone_skip),
2669		.help	= "Space between IO zones",
2670		.def	= "0",
2671		.interval = 1024 * 1024,
2672		.category = FIO_OPT_C_IO,
2673		.group	= FIO_OPT_G_ZONE,
2674	},
2675	{
2676		.name	= "lockmem",
2677		.lname	= "Lock memory",
2678		.type	= FIO_OPT_STR_VAL,
2679		.off1	= td_var_offset(lockmem),
2680		.help	= "Lock down this amount of memory (per worker)",
2681		.def	= "0",
2682		.interval = 1024 * 1024,
2683		.category = FIO_OPT_C_GENERAL,
2684		.group	= FIO_OPT_G_INVALID,
2685	},
2686	{
2687		.name	= "rwmixread",
2688		.lname	= "Read/write mix read",
2689		.type	= FIO_OPT_INT,
2690		.cb	= str_rwmix_read_cb,
2691		.off1	= td_var_offset(rwmix[DDIR_READ]),
2692		.maxval	= 100,
2693		.help	= "Percentage of mixed workload that is reads",
2694		.def	= "50",
2695		.interval = 5,
2696		.inverse = "rwmixwrite",
2697		.category = FIO_OPT_C_IO,
2698		.group	= FIO_OPT_G_RWMIX,
2699	},
2700	{
2701		.name	= "rwmixwrite",
2702		.lname	= "Read/write mix write",
2703		.type	= FIO_OPT_INT,
2704		.cb	= str_rwmix_write_cb,
2705		.off1	= td_var_offset(rwmix[DDIR_WRITE]),
2706		.maxval	= 100,
2707		.help	= "Percentage of mixed workload that is writes",
2708		.def	= "50",
2709		.interval = 5,
2710		.inverse = "rwmixread",
2711		.category = FIO_OPT_C_IO,
2712		.group	= FIO_OPT_G_RWMIX,
2713	},
2714	{
2715		.name	= "rwmixcycle",
2716		.lname	= "Read/write mix cycle",
2717		.type	= FIO_OPT_DEPRECATED,
2718		.category = FIO_OPT_C_IO,
2719		.group	= FIO_OPT_G_RWMIX,
2720	},
2721	{
2722		.name	= "nice",
2723		.lname	= "Nice",
2724		.type	= FIO_OPT_INT,
2725		.off1	= td_var_offset(nice),
2726		.help	= "Set job CPU nice value",
2727		.minval	= -19,
2728		.maxval	= 20,
2729		.def	= "0",
2730		.interval = 1,
2731		.category = FIO_OPT_C_GENERAL,
2732		.group	= FIO_OPT_G_CRED,
2733	},
2734#ifdef FIO_HAVE_IOPRIO
2735	{
2736		.name	= "prio",
2737		.lname	= "I/O nice priority",
2738		.type	= FIO_OPT_INT,
2739		.off1	= td_var_offset(ioprio),
2740		.help	= "Set job IO priority value",
2741		.minval	= 0,
2742		.maxval	= 7,
2743		.interval = 1,
2744		.category = FIO_OPT_C_GENERAL,
2745		.group	= FIO_OPT_G_CRED,
2746	},
2747	{
2748		.name	= "prioclass",
2749		.lname	= "I/O nice priority class",
2750		.type	= FIO_OPT_INT,
2751		.off1	= td_var_offset(ioprio_class),
2752		.help	= "Set job IO priority class",
2753		.minval	= 0,
2754		.maxval	= 3,
2755		.interval = 1,
2756		.category = FIO_OPT_C_GENERAL,
2757		.group	= FIO_OPT_G_CRED,
2758	},
2759#endif
2760	{
2761		.name	= "thinktime",
2762		.lname	= "Thinktime",
2763		.type	= FIO_OPT_INT,
2764		.off1	= td_var_offset(thinktime),
2765		.help	= "Idle time between IO buffers (usec)",
2766		.def	= "0",
2767		.is_time = 1,
2768		.category = FIO_OPT_C_IO,
2769		.group	= FIO_OPT_G_THINKTIME,
2770	},
2771	{
2772		.name	= "thinktime_spin",
2773		.lname	= "Thinktime spin",
2774		.type	= FIO_OPT_INT,
2775		.off1	= td_var_offset(thinktime_spin),
2776		.help	= "Start think time by spinning this amount (usec)",
2777		.def	= "0",
2778		.is_time = 1,
2779		.parent	= "thinktime",
2780		.hide	= 1,
2781		.category = FIO_OPT_C_IO,
2782		.group	= FIO_OPT_G_THINKTIME,
2783	},
2784	{
2785		.name	= "thinktime_blocks",
2786		.lname	= "Thinktime blocks",
2787		.type	= FIO_OPT_INT,
2788		.off1	= td_var_offset(thinktime_blocks),
2789		.help	= "IO buffer period between 'thinktime'",
2790		.def	= "1",
2791		.parent	= "thinktime",
2792		.hide	= 1,
2793		.category = FIO_OPT_C_IO,
2794		.group	= FIO_OPT_G_THINKTIME,
2795	},
2796	{
2797		.name	= "rate",
2798		.lname	= "I/O rate",
2799		.type	= FIO_OPT_INT,
2800		.off1	= td_var_offset(rate[DDIR_READ]),
2801		.off2	= td_var_offset(rate[DDIR_WRITE]),
2802		.off3	= td_var_offset(rate[DDIR_TRIM]),
2803		.help	= "Set bandwidth rate",
2804		.category = FIO_OPT_C_IO,
2805		.group	= FIO_OPT_G_RATE,
2806	},
2807	{
2808		.name	= "ratemin",
2809		.lname	= "I/O min rate",
2810		.type	= FIO_OPT_INT,
2811		.off1	= td_var_offset(ratemin[DDIR_READ]),
2812		.off2	= td_var_offset(ratemin[DDIR_WRITE]),
2813		.off3	= td_var_offset(ratemin[DDIR_TRIM]),
2814		.help	= "Job must meet this rate or it will be shutdown",
2815		.parent	= "rate",
2816		.hide	= 1,
2817		.category = FIO_OPT_C_IO,
2818		.group	= FIO_OPT_G_RATE,
2819	},
2820	{
2821		.name	= "rate_iops",
2822		.lname	= "I/O rate IOPS",
2823		.type	= FIO_OPT_INT,
2824		.off1	= td_var_offset(rate_iops[DDIR_READ]),
2825		.off2	= td_var_offset(rate_iops[DDIR_WRITE]),
2826		.off3	= td_var_offset(rate_iops[DDIR_TRIM]),
2827		.help	= "Limit IO used to this number of IO operations/sec",
2828		.hide	= 1,
2829		.category = FIO_OPT_C_IO,
2830		.group	= FIO_OPT_G_RATE,
2831	},
2832	{
2833		.name	= "rate_iops_min",
2834		.lname	= "I/O min rate IOPS",
2835		.type	= FIO_OPT_INT,
2836		.off1	= td_var_offset(rate_iops_min[DDIR_READ]),
2837		.off2	= td_var_offset(rate_iops_min[DDIR_WRITE]),
2838		.off3	= td_var_offset(rate_iops_min[DDIR_TRIM]),
2839		.help	= "Job must meet this rate or it will be shut down",
2840		.parent	= "rate_iops",
2841		.hide	= 1,
2842		.category = FIO_OPT_C_IO,
2843		.group	= FIO_OPT_G_RATE,
2844	},
2845	{
2846		.name	= "ratecycle",
2847		.lname	= "I/O rate cycle",
2848		.type	= FIO_OPT_INT,
2849		.off1	= td_var_offset(ratecycle),
2850		.help	= "Window average for rate limits (msec)",
2851		.def	= "1000",
2852		.parent = "rate",
2853		.hide	= 1,
2854		.category = FIO_OPT_C_IO,
2855		.group	= FIO_OPT_G_RATE,
2856	},
2857	{
2858		.name	= "max_latency",
2859		.type	= FIO_OPT_INT,
2860		.off1	= td_var_offset(max_latency),
2861		.help	= "Maximum tolerated IO latency (usec)",
2862		.is_time = 1,
2863		.category = FIO_OPT_C_IO,
2864		.group = FIO_OPT_G_LATPROF,
2865	},
2866	{
2867		.name	= "latency_target",
2868		.lname	= "Latency Target (usec)",
2869		.type	= FIO_OPT_STR_VAL_TIME,
2870		.off1	= td_var_offset(latency_target),
2871		.help	= "Ramp to max queue depth supporting this latency",
2872		.is_time = 1,
2873		.category = FIO_OPT_C_IO,
2874		.group	= FIO_OPT_G_LATPROF,
2875	},
2876	{
2877		.name	= "latency_window",
2878		.lname	= "Latency Window (usec)",
2879		.type	= FIO_OPT_STR_VAL_TIME,
2880		.off1	= td_var_offset(latency_window),
2881		.help	= "Time to sustain latency_target",
2882		.is_time = 1,
2883		.category = FIO_OPT_C_IO,
2884		.group	= FIO_OPT_G_LATPROF,
2885	},
2886	{
2887		.name	= "latency_percentile",
2888		.lname	= "Latency Percentile",
2889		.type	= FIO_OPT_FLOAT_LIST,
2890		.off1	= td_var_offset(latency_percentile),
2891		.help	= "Percentile of IOs must be below latency_target",
2892		.def	= "100",
2893		.maxlen	= 1,
2894		.minfp	= 0.0,
2895		.maxfp	= 100.0,
2896		.category = FIO_OPT_C_IO,
2897		.group	= FIO_OPT_G_LATPROF,
2898	},
2899	{
2900		.name	= "invalidate",
2901		.lname	= "Cache invalidate",
2902		.type	= FIO_OPT_BOOL,
2903		.off1	= td_var_offset(invalidate_cache),
2904		.help	= "Invalidate buffer/page cache prior to running job",
2905		.def	= "1",
2906		.category = FIO_OPT_C_IO,
2907		.group	= FIO_OPT_G_IO_TYPE,
2908	},
2909	{
2910		.name	= "sync",
2911		.lname	= "Synchronous I/O",
2912		.type	= FIO_OPT_BOOL,
2913		.off1	= td_var_offset(sync_io),
2914		.help	= "Use O_SYNC for buffered writes",
2915		.def	= "0",
2916		.parent = "buffered",
2917		.hide	= 1,
2918		.category = FIO_OPT_C_IO,
2919		.group	= FIO_OPT_G_IO_TYPE,
2920	},
2921	{
2922		.name	= "create_serialize",
2923		.lname	= "Create serialize",
2924		.type	= FIO_OPT_BOOL,
2925		.off1	= td_var_offset(create_serialize),
2926		.help	= "Serialize creating of job files",
2927		.def	= "1",
2928		.category = FIO_OPT_C_FILE,
2929		.group	= FIO_OPT_G_INVALID,
2930	},
2931	{
2932		.name	= "create_fsync",
2933		.lname	= "Create fsync",
2934		.type	= FIO_OPT_BOOL,
2935		.off1	= td_var_offset(create_fsync),
2936		.help	= "fsync file after creation",
2937		.def	= "1",
2938		.category = FIO_OPT_C_FILE,
2939		.group	= FIO_OPT_G_INVALID,
2940	},
2941	{
2942		.name	= "create_on_open",
2943		.lname	= "Create on open",
2944		.type	= FIO_OPT_BOOL,
2945		.off1	= td_var_offset(create_on_open),
2946		.help	= "Create files when they are opened for IO",
2947		.def	= "0",
2948		.category = FIO_OPT_C_FILE,
2949		.group	= FIO_OPT_G_INVALID,
2950	},
2951	{
2952		.name	= "create_only",
2953		.type	= FIO_OPT_BOOL,
2954		.off1	= td_var_offset(create_only),
2955		.help	= "Only perform file creation phase",
2956		.category = FIO_OPT_C_FILE,
2957		.def	= "0",
2958	},
2959	{
2960		.name	= "pre_read",
2961		.lname	= "Pre-read files",
2962		.type	= FIO_OPT_BOOL,
2963		.off1	= td_var_offset(pre_read),
2964		.help	= "Pre-read files before starting official testing",
2965		.def	= "0",
2966		.category = FIO_OPT_C_FILE,
2967		.group	= FIO_OPT_G_INVALID,
2968	},
2969#ifdef FIO_HAVE_CPU_AFFINITY
2970	{
2971		.name	= "cpumask",
2972		.lname	= "CPU mask",
2973		.type	= FIO_OPT_INT,
2974		.cb	= str_cpumask_cb,
2975		.off1	= td_var_offset(cpumask),
2976		.help	= "CPU affinity mask",
2977		.category = FIO_OPT_C_GENERAL,
2978		.group	= FIO_OPT_G_CRED,
2979	},
2980	{
2981		.name	= "cpus_allowed",
2982		.lname	= "CPUs allowed",
2983		.type	= FIO_OPT_STR,
2984		.cb	= str_cpus_allowed_cb,
2985		.off1	= td_var_offset(cpumask),
2986		.help	= "Set CPUs allowed",
2987		.category = FIO_OPT_C_GENERAL,
2988		.group	= FIO_OPT_G_CRED,
2989	},
2990	{
2991		.name	= "cpus_allowed_policy",
2992		.lname	= "CPUs allowed distribution policy",
2993		.type	= FIO_OPT_STR,
2994		.off1	= td_var_offset(cpus_allowed_policy),
2995		.help	= "Distribution policy for cpus_allowed",
2996		.parent = "cpus_allowed",
2997		.prio	= 1,
2998		.posval = {
2999			  { .ival = "shared",
3000			    .oval = FIO_CPUS_SHARED,
3001			    .help = "Mask shared between threads",
3002			  },
3003			  { .ival = "split",
3004			    .oval = FIO_CPUS_SPLIT,
3005			    .help = "Mask split between threads",
3006			  },
3007		},
3008		.category = FIO_OPT_C_GENERAL,
3009		.group	= FIO_OPT_G_CRED,
3010	},
3011#endif
3012#ifdef CONFIG_LIBNUMA
3013	{
3014		.name	= "numa_cpu_nodes",
3015		.type	= FIO_OPT_STR,
3016		.cb	= str_numa_cpunodes_cb,
3017		.off1	= td_var_offset(numa_cpunodes),
3018		.help	= "NUMA CPU nodes bind",
3019		.category = FIO_OPT_C_GENERAL,
3020		.group	= FIO_OPT_G_INVALID,
3021	},
3022	{
3023		.name	= "numa_mem_policy",
3024		.type	= FIO_OPT_STR,
3025		.cb	= str_numa_mpol_cb,
3026		.off1	= td_var_offset(numa_memnodes),
3027		.help	= "NUMA memory policy setup",
3028		.category = FIO_OPT_C_GENERAL,
3029		.group	= FIO_OPT_G_INVALID,
3030	},
3031#endif
3032	{
3033		.name	= "end_fsync",
3034		.lname	= "End fsync",
3035		.type	= FIO_OPT_BOOL,
3036		.off1	= td_var_offset(end_fsync),
3037		.help	= "Include fsync at the end of job",
3038		.def	= "0",
3039		.category = FIO_OPT_C_FILE,
3040		.group	= FIO_OPT_G_INVALID,
3041	},
3042	{
3043		.name	= "fsync_on_close",
3044		.lname	= "Fsync on close",
3045		.type	= FIO_OPT_BOOL,
3046		.off1	= td_var_offset(fsync_on_close),
3047		.help	= "fsync files on close",
3048		.def	= "0",
3049		.category = FIO_OPT_C_FILE,
3050		.group	= FIO_OPT_G_INVALID,
3051	},
3052	{
3053		.name	= "unlink",
3054		.lname	= "Unlink file",
3055		.type	= FIO_OPT_BOOL,
3056		.off1	= td_var_offset(unlink),
3057		.help	= "Unlink created files after job has completed",
3058		.def	= "0",
3059		.category = FIO_OPT_C_FILE,
3060		.group	= FIO_OPT_G_INVALID,
3061	},
3062	{
3063		.name	= "exitall",
3064		.lname	= "Exit-all on terminate",
3065		.type	= FIO_OPT_STR_SET,
3066		.cb	= str_exitall_cb,
3067		.help	= "Terminate all jobs when one exits",
3068		.category = FIO_OPT_C_GENERAL,
3069		.group	= FIO_OPT_G_PROCESS,
3070	},
3071	{
3072		.name	= "stonewall",
3073		.lname	= "Wait for previous",
3074		.alias	= "wait_for_previous",
3075		.type	= FIO_OPT_STR_SET,
3076		.off1	= td_var_offset(stonewall),
3077		.help	= "Insert a hard barrier between this job and previous",
3078		.category = FIO_OPT_C_GENERAL,
3079		.group	= FIO_OPT_G_PROCESS,
3080	},
3081	{
3082		.name	= "new_group",
3083		.lname	= "New group",
3084		.type	= FIO_OPT_STR_SET,
3085		.off1	= td_var_offset(new_group),
3086		.help	= "Mark the start of a new group (for reporting)",
3087		.category = FIO_OPT_C_GENERAL,
3088		.group	= FIO_OPT_G_PROCESS,
3089	},
3090	{
3091		.name	= "thread",
3092		.lname	= "Thread",
3093		.type	= FIO_OPT_STR_SET,
3094		.off1	= td_var_offset(use_thread),
3095		.help	= "Use threads instead of processes",
3096#ifdef CONFIG_NO_SHM
3097		.def	= "1",
3098		.no_warn_def = 1,
3099#endif
3100		.category = FIO_OPT_C_GENERAL,
3101		.group	= FIO_OPT_G_PROCESS,
3102	},
3103	{
3104		.name	= "write_bw_log",
3105		.lname	= "Write bandwidth log",
3106		.type	= FIO_OPT_STR_STORE,
3107		.off1	= td_var_offset(bw_log_file),
3108		.help	= "Write log of bandwidth during run",
3109		.category = FIO_OPT_C_LOG,
3110		.group	= FIO_OPT_G_INVALID,
3111	},
3112	{
3113		.name	= "write_lat_log",
3114		.lname	= "Write latency log",
3115		.type	= FIO_OPT_STR_STORE,
3116		.off1	= td_var_offset(lat_log_file),
3117		.help	= "Write log of latency during run",
3118		.category = FIO_OPT_C_LOG,
3119		.group	= FIO_OPT_G_INVALID,
3120	},
3121	{
3122		.name	= "write_iops_log",
3123		.lname	= "Write IOPS log",
3124		.type	= FIO_OPT_STR_STORE,
3125		.off1	= td_var_offset(iops_log_file),
3126		.help	= "Write log of IOPS during run",
3127		.category = FIO_OPT_C_LOG,
3128		.group	= FIO_OPT_G_INVALID,
3129	},
3130	{
3131		.name	= "log_avg_msec",
3132		.lname	= "Log averaging (msec)",
3133		.type	= FIO_OPT_INT,
3134		.off1	= td_var_offset(log_avg_msec),
3135		.help	= "Average bw/iops/lat logs over this period of time",
3136		.def	= "0",
3137		.category = FIO_OPT_C_LOG,
3138		.group	= FIO_OPT_G_INVALID,
3139	},
3140	{
3141		.name	= "log_offset",
3142		.lname	= "Log offset of IO",
3143		.type	= FIO_OPT_BOOL,
3144		.off1	= td_var_offset(log_offset),
3145		.help	= "Include offset of IO for each log entry",
3146		.def	= "0",
3147		.category = FIO_OPT_C_LOG,
3148		.group	= FIO_OPT_G_INVALID,
3149	},
3150#ifdef CONFIG_ZLIB
3151	{
3152		.name	= "log_compression",
3153		.lname	= "Log compression",
3154		.type	= FIO_OPT_INT,
3155		.off1	= td_var_offset(log_gz),
3156		.help	= "Log in compressed chunks of this size",
3157		.minval	= 32 * 1024 * 1024ULL,
3158		.maxval	= 512 * 1024 * 1024ULL,
3159		.category = FIO_OPT_C_LOG,
3160		.group	= FIO_OPT_G_INVALID,
3161	},
3162	{
3163		.name	= "log_store_compressed",
3164		.lname	= "Log store compressed",
3165		.type	= FIO_OPT_BOOL,
3166		.off1	= td_var_offset(log_gz_store),
3167		.help	= "Store logs in a compressed format",
3168		.category = FIO_OPT_C_LOG,
3169		.group	= FIO_OPT_G_INVALID,
3170	},
3171#endif
3172	{
3173		.name	= "bwavgtime",
3174		.lname	= "Bandwidth average time",
3175		.type	= FIO_OPT_INT,
3176		.off1	= td_var_offset(bw_avg_time),
3177		.help	= "Time window over which to calculate bandwidth"
3178			  " (msec)",
3179		.def	= "500",
3180		.parent	= "write_bw_log",
3181		.hide	= 1,
3182		.interval = 100,
3183		.category = FIO_OPT_C_LOG,
3184		.group	= FIO_OPT_G_INVALID,
3185	},
3186	{
3187		.name	= "iopsavgtime",
3188		.lname	= "IOPS average time",
3189		.type	= FIO_OPT_INT,
3190		.off1	= td_var_offset(iops_avg_time),
3191		.help	= "Time window over which to calculate IOPS (msec)",
3192		.def	= "500",
3193		.parent	= "write_iops_log",
3194		.hide	= 1,
3195		.interval = 100,
3196		.category = FIO_OPT_C_LOG,
3197		.group	= FIO_OPT_G_INVALID,
3198	},
3199	{
3200		.name	= "group_reporting",
3201		.lname	= "Group reporting",
3202		.type	= FIO_OPT_STR_SET,
3203		.off1	= td_var_offset(group_reporting),
3204		.help	= "Do reporting on a per-group basis",
3205		.category = FIO_OPT_C_STAT,
3206		.group	= FIO_OPT_G_INVALID,
3207	},
3208	{
3209		.name	= "zero_buffers",
3210		.lname	= "Zero I/O buffers",
3211		.type	= FIO_OPT_STR_SET,
3212		.off1	= td_var_offset(zero_buffers),
3213		.help	= "Init IO buffers to all zeroes",
3214		.category = FIO_OPT_C_IO,
3215		.group	= FIO_OPT_G_IO_BUF,
3216	},
3217	{
3218		.name	= "refill_buffers",
3219		.lname	= "Refill I/O buffers",
3220		.type	= FIO_OPT_STR_SET,
3221		.off1	= td_var_offset(refill_buffers),
3222		.help	= "Refill IO buffers on every IO submit",
3223		.category = FIO_OPT_C_IO,
3224		.group	= FIO_OPT_G_IO_BUF,
3225	},
3226	{
3227		.name	= "scramble_buffers",
3228		.lname	= "Scramble I/O buffers",
3229		.type	= FIO_OPT_BOOL,
3230		.off1	= td_var_offset(scramble_buffers),
3231		.help	= "Slightly scramble buffers on every IO submit",
3232		.def	= "1",
3233		.category = FIO_OPT_C_IO,
3234		.group	= FIO_OPT_G_IO_BUF,
3235	},
3236	{
3237		.name	= "buffer_pattern",
3238		.lname	= "Buffer pattern",
3239		.type	= FIO_OPT_STR,
3240		.cb	= str_buffer_pattern_cb,
3241		.off1	= td_var_offset(buffer_pattern),
3242		.help	= "Fill pattern for IO buffers",
3243		.category = FIO_OPT_C_IO,
3244		.group	= FIO_OPT_G_IO_BUF,
3245	},
3246	{
3247		.name	= "buffer_compress_percentage",
3248		.lname	= "Buffer compression percentage",
3249		.type	= FIO_OPT_INT,
3250		.cb	= str_buffer_compress_cb,
3251		.off1	= td_var_offset(compress_percentage),
3252		.maxval	= 100,
3253		.minval	= 0,
3254		.help	= "How compressible the buffer is (approximately)",
3255		.interval = 5,
3256		.category = FIO_OPT_C_IO,
3257		.group	= FIO_OPT_G_IO_BUF,
3258	},
3259	{
3260		.name	= "buffer_compress_chunk",
3261		.lname	= "Buffer compression chunk size",
3262		.type	= FIO_OPT_INT,
3263		.off1	= td_var_offset(compress_chunk),
3264		.parent	= "buffer_compress_percentage",
3265		.hide	= 1,
3266		.help	= "Size of compressible region in buffer",
3267		.interval = 256,
3268		.category = FIO_OPT_C_IO,
3269		.group	= FIO_OPT_G_IO_BUF,
3270	},
3271	{
3272		.name	= "dedupe_percentage",
3273		.lname	= "Dedupe percentage",
3274		.type	= FIO_OPT_INT,
3275		.cb	= str_dedupe_cb,
3276		.off1	= td_var_offset(dedupe_percentage),
3277		.maxval	= 100,
3278		.minval	= 0,
3279		.help	= "Percentage of buffers that are dedupable",
3280		.interval = 1,
3281		.category = FIO_OPT_C_IO,
3282		.group	= FIO_OPT_G_IO_BUF,
3283	},
3284	{
3285		.name	= "clat_percentiles",
3286		.lname	= "Completion latency percentiles",
3287		.type	= FIO_OPT_BOOL,
3288		.off1	= td_var_offset(clat_percentiles),
3289		.help	= "Enable the reporting of completion latency percentiles",
3290		.def	= "1",
3291		.category = FIO_OPT_C_STAT,
3292		.group	= FIO_OPT_G_INVALID,
3293	},
3294	{
3295		.name	= "percentile_list",
3296		.lname	= "Completion latency percentile list",
3297		.type	= FIO_OPT_FLOAT_LIST,
3298		.off1	= td_var_offset(percentile_list),
3299		.off2	= td_var_offset(percentile_precision),
3300		.help	= "Specify a custom list of percentiles to report",
3301		.def    = "1:5:10:20:30:40:50:60:70:80:90:95:99:99.5:99.9:99.95:99.99",
3302		.maxlen	= FIO_IO_U_LIST_MAX_LEN,
3303		.minfp	= 0.0,
3304		.maxfp	= 100.0,
3305		.category = FIO_OPT_C_STAT,
3306		.group	= FIO_OPT_G_INVALID,
3307	},
3308
3309#ifdef FIO_HAVE_DISK_UTIL
3310	{
3311		.name	= "disk_util",
3312		.lname	= "Disk utilization",
3313		.type	= FIO_OPT_BOOL,
3314		.off1	= td_var_offset(do_disk_util),
3315		.help	= "Log disk utilization statistics",
3316		.def	= "1",
3317		.category = FIO_OPT_C_STAT,
3318		.group	= FIO_OPT_G_INVALID,
3319	},
3320#endif
3321	{
3322		.name	= "gtod_reduce",
3323		.lname	= "Reduce gettimeofday() calls",
3324		.type	= FIO_OPT_BOOL,
3325		.help	= "Greatly reduce number of gettimeofday() calls",
3326		.cb	= str_gtod_reduce_cb,
3327		.def	= "0",
3328		.hide_on_set = 1,
3329		.category = FIO_OPT_C_STAT,
3330		.group	= FIO_OPT_G_INVALID,
3331	},
3332	{
3333		.name	= "disable_lat",
3334		.lname	= "Disable all latency stats",
3335		.type	= FIO_OPT_BOOL,
3336		.off1	= td_var_offset(disable_lat),
3337		.help	= "Disable latency numbers",
3338		.parent	= "gtod_reduce",
3339		.hide	= 1,
3340		.def	= "0",
3341		.category = FIO_OPT_C_STAT,
3342		.group	= FIO_OPT_G_INVALID,
3343	},
3344	{
3345		.name	= "disable_clat",
3346		.lname	= "Disable completion latency stats",
3347		.type	= FIO_OPT_BOOL,
3348		.off1	= td_var_offset(disable_clat),
3349		.help	= "Disable completion latency numbers",
3350		.parent	= "gtod_reduce",
3351		.hide	= 1,
3352		.def	= "0",
3353		.category = FIO_OPT_C_STAT,
3354		.group	= FIO_OPT_G_INVALID,
3355	},
3356	{
3357		.name	= "disable_slat",
3358		.lname	= "Disable submission latency stats",
3359		.type	= FIO_OPT_BOOL,
3360		.off1	= td_var_offset(disable_slat),
3361		.help	= "Disable submission latency numbers",
3362		.parent	= "gtod_reduce",
3363		.hide	= 1,
3364		.def	= "0",
3365		.category = FIO_OPT_C_STAT,
3366		.group	= FIO_OPT_G_INVALID,
3367	},
3368	{
3369		.name	= "disable_bw_measurement",
3370		.lname	= "Disable bandwidth stats",
3371		.type	= FIO_OPT_BOOL,
3372		.off1	= td_var_offset(disable_bw),
3373		.help	= "Disable bandwidth logging",
3374		.parent	= "gtod_reduce",
3375		.hide	= 1,
3376		.def	= "0",
3377		.category = FIO_OPT_C_STAT,
3378		.group	= FIO_OPT_G_INVALID,
3379	},
3380	{
3381		.name	= "gtod_cpu",
3382		.lname	= "Dedicated gettimeofday() CPU",
3383		.type	= FIO_OPT_INT,
3384		.off1	= td_var_offset(gtod_cpu),
3385		.help	= "Set up dedicated gettimeofday() thread on this CPU",
3386		.verify	= gtod_cpu_verify,
3387		.category = FIO_OPT_C_GENERAL,
3388		.group	= FIO_OPT_G_CLOCK,
3389	},
3390	{
3391		.name	= "unified_rw_reporting",
3392		.type	= FIO_OPT_BOOL,
3393		.off1	= td_var_offset(unified_rw_rep),
3394		.help	= "Unify reporting across data direction",
3395		.def	= "0",
3396		.category = FIO_OPT_C_GENERAL,
3397		.group	= FIO_OPT_G_INVALID,
3398	},
3399	{
3400		.name	= "continue_on_error",
3401		.lname	= "Continue on error",
3402		.type	= FIO_OPT_STR,
3403		.off1	= td_var_offset(continue_on_error),
3404		.help	= "Continue on non-fatal errors during IO",
3405		.def	= "none",
3406		.category = FIO_OPT_C_GENERAL,
3407		.group	= FIO_OPT_G_ERR,
3408		.posval = {
3409			  { .ival = "none",
3410			    .oval = ERROR_TYPE_NONE,
3411			    .help = "Exit when an error is encountered",
3412			  },
3413			  { .ival = "read",
3414			    .oval = ERROR_TYPE_READ,
3415			    .help = "Continue on read errors only",
3416			  },
3417			  { .ival = "write",
3418			    .oval = ERROR_TYPE_WRITE,
3419			    .help = "Continue on write errors only",
3420			  },
3421			  { .ival = "io",
3422			    .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
3423			    .help = "Continue on any IO errors",
3424			  },
3425			  { .ival = "verify",
3426			    .oval = ERROR_TYPE_VERIFY,
3427			    .help = "Continue on verify errors only",
3428			  },
3429			  { .ival = "all",
3430			    .oval = ERROR_TYPE_ANY,
3431			    .help = "Continue on all io and verify errors",
3432			  },
3433			  { .ival = "0",
3434			    .oval = ERROR_TYPE_NONE,
3435			    .help = "Alias for 'none'",
3436			  },
3437			  { .ival = "1",
3438			    .oval = ERROR_TYPE_ANY,
3439			    .help = "Alias for 'all'",
3440			  },
3441		},
3442	},
3443	{
3444		.name	= "ignore_error",
3445		.type	= FIO_OPT_STR,
3446		.cb	= str_ignore_error_cb,
3447		.off1	= td_var_offset(ignore_error_nr),
3448		.help	= "Set a specific list of errors to ignore",
3449		.parent	= "rw",
3450		.category = FIO_OPT_C_GENERAL,
3451		.group	= FIO_OPT_G_ERR,
3452	},
3453	{
3454		.name	= "error_dump",
3455		.type	= FIO_OPT_BOOL,
3456		.off1	= td_var_offset(error_dump),
3457		.def	= "0",
3458		.help	= "Dump info on each error",
3459		.category = FIO_OPT_C_GENERAL,
3460		.group	= FIO_OPT_G_ERR,
3461	},
3462	{
3463		.name	= "profile",
3464		.lname	= "Profile",
3465		.type	= FIO_OPT_STR_STORE,
3466		.off1	= td_var_offset(profile),
3467		.help	= "Select a specific builtin performance test",
3468		.category = FIO_OPT_C_PROFILE,
3469		.group	= FIO_OPT_G_INVALID,
3470	},
3471	{
3472		.name	= "cgroup",
3473		.lname	= "Cgroup",
3474		.type	= FIO_OPT_STR_STORE,
3475		.off1	= td_var_offset(cgroup),
3476		.help	= "Add job to cgroup of this name",
3477		.category = FIO_OPT_C_GENERAL,
3478		.group	= FIO_OPT_G_CGROUP,
3479	},
3480	{
3481		.name	= "cgroup_nodelete",
3482		.lname	= "Cgroup no-delete",
3483		.type	= FIO_OPT_BOOL,
3484		.off1	= td_var_offset(cgroup_nodelete),
3485		.help	= "Do not delete cgroups after job completion",
3486		.def	= "0",
3487		.parent	= "cgroup",
3488		.category = FIO_OPT_C_GENERAL,
3489		.group	= FIO_OPT_G_CGROUP,
3490	},
3491	{
3492		.name	= "cgroup_weight",
3493		.lname	= "Cgroup weight",
3494		.type	= FIO_OPT_INT,
3495		.off1	= td_var_offset(cgroup_weight),
3496		.help	= "Use given weight for cgroup",
3497		.minval = 100,
3498		.maxval	= 1000,
3499		.parent	= "cgroup",
3500		.category = FIO_OPT_C_GENERAL,
3501		.group	= FIO_OPT_G_CGROUP,
3502	},
3503	{
3504		.name	= "uid",
3505		.lname	= "User ID",
3506		.type	= FIO_OPT_INT,
3507		.off1	= td_var_offset(uid),
3508		.help	= "Run job with this user ID",
3509		.category = FIO_OPT_C_GENERAL,
3510		.group	= FIO_OPT_G_CRED,
3511	},
3512	{
3513		.name	= "gid",
3514		.lname	= "Group ID",
3515		.type	= FIO_OPT_INT,
3516		.off1	= td_var_offset(gid),
3517		.help	= "Run job with this group ID",
3518		.category = FIO_OPT_C_GENERAL,
3519		.group	= FIO_OPT_G_CRED,
3520	},
3521	{
3522		.name	= "kb_base",
3523		.lname	= "KB Base",
3524		.type	= FIO_OPT_INT,
3525		.off1	= td_var_offset(kb_base),
3526		.prio	= 1,
3527		.def	= "1024",
3528		.posval = {
3529			  { .ival = "1024",
3530			    .oval = 1024,
3531			    .help = "Use 1024 as the K base",
3532			  },
3533			  { .ival = "1000",
3534			    .oval = 1000,
3535			    .help = "Use 1000 as the K base",
3536			  },
3537		},
3538		.help	= "How many bytes per KB for reporting (1000 or 1024)",
3539		.category = FIO_OPT_C_GENERAL,
3540		.group	= FIO_OPT_G_INVALID,
3541	},
3542	{
3543		.name	= "unit_base",
3544		.lname	= "Base unit for reporting (Bits or Bytes)",
3545		.type	= FIO_OPT_INT,
3546		.off1	= td_var_offset(unit_base),
3547		.prio	= 1,
3548		.posval = {
3549			  { .ival = "0",
3550			    .oval = 0,
3551			    .help = "Auto-detect",
3552			  },
3553			  { .ival = "8",
3554			    .oval = 8,
3555			    .help = "Normal (byte based)",
3556			  },
3557			  { .ival = "1",
3558			    .oval = 1,
3559			    .help = "Bit based",
3560			  },
3561		},
3562		.help	= "Bit multiple of result summary data (8 for byte, 1 for bit)",
3563		.category = FIO_OPT_C_GENERAL,
3564		.group	= FIO_OPT_G_INVALID,
3565	},
3566	{
3567		.name	= "hugepage-size",
3568		.lname	= "Hugepage size",
3569		.type	= FIO_OPT_INT,
3570		.off1	= td_var_offset(hugepage_size),
3571		.help	= "When using hugepages, specify size of each page",
3572		.def	= __fio_stringify(FIO_HUGE_PAGE),
3573		.interval = 1024 * 1024,
3574		.category = FIO_OPT_C_GENERAL,
3575		.group	= FIO_OPT_G_INVALID,
3576	},
3577	{
3578		.name	= "flow_id",
3579		.lname	= "I/O flow ID",
3580		.type	= FIO_OPT_INT,
3581		.off1	= td_var_offset(flow_id),
3582		.help	= "The flow index ID to use",
3583		.def	= "0",
3584		.category = FIO_OPT_C_IO,
3585		.group	= FIO_OPT_G_IO_FLOW,
3586	},
3587	{
3588		.name	= "flow",
3589		.lname	= "I/O flow weight",
3590		.type	= FIO_OPT_INT,
3591		.off1	= td_var_offset(flow),
3592		.help	= "Weight for flow control of this job",
3593		.parent	= "flow_id",
3594		.hide	= 1,
3595		.def	= "0",
3596		.category = FIO_OPT_C_IO,
3597		.group	= FIO_OPT_G_IO_FLOW,
3598	},
3599	{
3600		.name	= "flow_watermark",
3601		.lname	= "I/O flow watermark",
3602		.type	= FIO_OPT_INT,
3603		.off1	= td_var_offset(flow_watermark),
3604		.help	= "High watermark for flow control. This option"
3605			" should be set to the same value for all threads"
3606			" with non-zero flow.",
3607		.parent	= "flow_id",
3608		.hide	= 1,
3609		.def	= "1024",
3610		.category = FIO_OPT_C_IO,
3611		.group	= FIO_OPT_G_IO_FLOW,
3612	},
3613	{
3614		.name	= "flow_sleep",
3615		.lname	= "I/O flow sleep",
3616		.type	= FIO_OPT_INT,
3617		.off1	= td_var_offset(flow_sleep),
3618		.help	= "How many microseconds to sleep after being held"
3619			" back by the flow control mechanism",
3620		.parent	= "flow_id",
3621		.hide	= 1,
3622		.def	= "0",
3623		.category = FIO_OPT_C_IO,
3624		.group	= FIO_OPT_G_IO_FLOW,
3625	},
3626	{
3627		.name = NULL,
3628	},
3629};
3630
3631static void add_to_lopt(struct option *lopt, struct fio_option *o,
3632			const char *name, int val)
3633{
3634	lopt->name = (char *) name;
3635	lopt->val = val;
3636	if (o->type == FIO_OPT_STR_SET)
3637		lopt->has_arg = optional_argument;
3638	else
3639		lopt->has_arg = required_argument;
3640}
3641
3642static void options_to_lopts(struct fio_option *opts,
3643			      struct option *long_options,
3644			      int i, int option_type)
3645{
3646	struct fio_option *o = &opts[0];
3647	while (o->name) {
3648		add_to_lopt(&long_options[i], o, o->name, option_type);
3649		if (o->alias) {
3650			i++;
3651			add_to_lopt(&long_options[i], o, o->alias, option_type);
3652		}
3653
3654		i++;
3655		o++;
3656		assert(i < FIO_NR_OPTIONS);
3657	}
3658}
3659
3660void fio_options_set_ioengine_opts(struct option *long_options,
3661				   struct thread_data *td)
3662{
3663	unsigned int i;
3664
3665	i = 0;
3666	while (long_options[i].name) {
3667		if (long_options[i].val == FIO_GETOPT_IOENGINE) {
3668			memset(&long_options[i], 0, sizeof(*long_options));
3669			break;
3670		}
3671		i++;
3672	}
3673
3674	/*
3675	 * Just clear out the prior ioengine options.
3676	 */
3677	if (!td || !td->eo)
3678		return;
3679
3680	options_to_lopts(td->io_ops->options, long_options, i,
3681			 FIO_GETOPT_IOENGINE);
3682}
3683
3684void fio_options_dup_and_init(struct option *long_options)
3685{
3686	unsigned int i;
3687
3688	options_init(fio_options);
3689
3690	i = 0;
3691	while (long_options[i].name)
3692		i++;
3693
3694	options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
3695}
3696
3697struct fio_keyword {
3698	const char *word;
3699	const char *desc;
3700	char *replace;
3701};
3702
3703static struct fio_keyword fio_keywords[] = {
3704	{
3705		.word	= "$pagesize",
3706		.desc	= "Page size in the system",
3707	},
3708	{
3709		.word	= "$mb_memory",
3710		.desc	= "Megabytes of memory online",
3711	},
3712	{
3713		.word	= "$ncpus",
3714		.desc	= "Number of CPUs online in the system",
3715	},
3716	{
3717		.word	= NULL,
3718	},
3719};
3720
3721void fio_keywords_init(void)
3722{
3723	unsigned long long mb_memory;
3724	char buf[128];
3725	long l;
3726
3727	sprintf(buf, "%lu", (unsigned long) page_size);
3728	fio_keywords[0].replace = strdup(buf);
3729
3730	mb_memory = os_phys_mem() / (1024 * 1024);
3731	sprintf(buf, "%llu", mb_memory);
3732	fio_keywords[1].replace = strdup(buf);
3733
3734	l = cpus_online();
3735	sprintf(buf, "%lu", l);
3736	fio_keywords[2].replace = strdup(buf);
3737}
3738
3739#define BC_APP		"bc"
3740
3741static char *bc_calc(char *str)
3742{
3743	char buf[128], *tmp;
3744	FILE *f;
3745	int ret;
3746
3747	/*
3748	 * No math, just return string
3749	 */
3750	if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
3751	     !strchr(str, '/')) || strchr(str, '\''))
3752		return str;
3753
3754	/*
3755	 * Split option from value, we only need to calculate the value
3756	 */
3757	tmp = strchr(str, '=');
3758	if (!tmp)
3759		return str;
3760
3761	tmp++;
3762
3763	/*
3764	 * Prevent buffer overflows; such a case isn't reasonable anyway
3765	 */
3766	if (strlen(str) >= 128 || strlen(tmp) > 100)
3767		return str;
3768
3769	sprintf(buf, "which %s > /dev/null", BC_APP);
3770	if (system(buf)) {
3771		log_err("fio: bc is needed for performing math\n");
3772		return NULL;
3773	}
3774
3775	sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
3776	f = popen(buf, "r");
3777	if (!f)
3778		return NULL;
3779
3780	ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
3781	if (ret <= 0) {
3782		pclose(f);
3783		return NULL;
3784	}
3785
3786	pclose(f);
3787	buf[(tmp - str) + ret - 1] = '\0';
3788	memcpy(buf, str, tmp - str);
3789	free(str);
3790	return strdup(buf);
3791}
3792
3793/*
3794 * Return a copy of the input string with substrings of the form ${VARNAME}
3795 * substituted with the value of the environment variable VARNAME.  The
3796 * substitution always occurs, even if VARNAME is empty or the corresponding
3797 * environment variable undefined.
3798 */
3799static char *option_dup_subs(const char *opt)
3800{
3801	char out[OPT_LEN_MAX+1];
3802	char in[OPT_LEN_MAX+1];
3803	char *outptr = out;
3804	char *inptr = in;
3805	char *ch1, *ch2, *env;
3806	ssize_t nchr = OPT_LEN_MAX;
3807	size_t envlen;
3808
3809	if (strlen(opt) + 1 > OPT_LEN_MAX) {
3810		log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
3811		return NULL;
3812	}
3813
3814	in[OPT_LEN_MAX] = '\0';
3815	strncpy(in, opt, OPT_LEN_MAX);
3816
3817	while (*inptr && nchr > 0) {
3818		if (inptr[0] == '$' && inptr[1] == '{') {
3819			ch2 = strchr(inptr, '}');
3820			if (ch2 && inptr+1 < ch2) {
3821				ch1 = inptr+2;
3822				inptr = ch2+1;
3823				*ch2 = '\0';
3824
3825				env = getenv(ch1);
3826				if (env) {
3827					envlen = strlen(env);
3828					if (envlen <= nchr) {
3829						memcpy(outptr, env, envlen);
3830						outptr += envlen;
3831						nchr -= envlen;
3832					}
3833				}
3834
3835				continue;
3836			}
3837		}
3838
3839		*outptr++ = *inptr++;
3840		--nchr;
3841	}
3842
3843	*outptr = '\0';
3844	return strdup(out);
3845}
3846
3847/*
3848 * Look for reserved variable names and replace them with real values
3849 */
3850static char *fio_keyword_replace(char *opt)
3851{
3852	char *s;
3853	int i;
3854	int docalc = 0;
3855
3856	for (i = 0; fio_keywords[i].word != NULL; i++) {
3857		struct fio_keyword *kw = &fio_keywords[i];
3858
3859		while ((s = strstr(opt, kw->word)) != NULL) {
3860			char *new = malloc(strlen(opt) + 1);
3861			char *o_org = opt;
3862			int olen = s - opt;
3863			int len;
3864
3865			/*
3866			 * Copy part of the string before the keyword and
3867			 * sprintf() the replacement after it.
3868			 */
3869			memcpy(new, opt, olen);
3870			len = sprintf(new + olen, "%s", kw->replace);
3871
3872			/*
3873			 * If there's more in the original string, copy that
3874			 * in too
3875			 */
3876			opt += strlen(kw->word) + olen;
3877			if (strlen(opt))
3878				memcpy(new + olen + len, opt, opt - o_org - 1);
3879
3880			/*
3881			 * replace opt and free the old opt
3882			 */
3883			opt = new;
3884			free(o_org);
3885
3886			docalc = 1;
3887		}
3888	}
3889
3890	/*
3891	 * Check for potential math and invoke bc, if possible
3892	 */
3893	if (docalc)
3894		opt = bc_calc(opt);
3895
3896	return opt;
3897}
3898
3899static char **dup_and_sub_options(char **opts, int num_opts)
3900{
3901	int i;
3902	char **opts_copy = malloc(num_opts * sizeof(*opts));
3903	for (i = 0; i < num_opts; i++) {
3904		opts_copy[i] = option_dup_subs(opts[i]);
3905		if (!opts_copy[i])
3906			continue;
3907		opts_copy[i] = fio_keyword_replace(opts_copy[i]);
3908	}
3909	return opts_copy;
3910}
3911
3912static void show_closest_option(const char *opt)
3913{
3914	int best_option, best_distance;
3915	int i, distance;
3916	char *name;
3917
3918	if (!strlen(opt))
3919		return;
3920
3921	name = strdup(opt);
3922	i = 0;
3923	while (name[i] != '\0' && name[i] != '=')
3924		i++;
3925	name[i] = '\0';
3926
3927	best_option = -1;
3928	best_distance = INT_MAX;
3929	i = 0;
3930	while (fio_options[i].name) {
3931		distance = string_distance(name, fio_options[i].name);
3932		if (distance < best_distance) {
3933			best_distance = distance;
3934			best_option = i;
3935		}
3936		i++;
3937	}
3938
3939	if (best_option != -1)
3940		log_err("Did you mean %s?\n", fio_options[best_option].name);
3941
3942	free(name);
3943}
3944
3945int fio_options_parse(struct thread_data *td, char **opts, int num_opts,
3946			int dump_cmdline)
3947{
3948	int i, ret, unknown;
3949	char **opts_copy;
3950
3951	sort_options(opts, fio_options, num_opts);
3952	opts_copy = dup_and_sub_options(opts, num_opts);
3953
3954	for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
3955		struct fio_option *o;
3956		int newret = parse_option(opts_copy[i], opts[i], fio_options,
3957						&o, td, dump_cmdline);
3958
3959		if (!newret && o)
3960			fio_option_mark_set(&td->o, o);
3961
3962		if (opts_copy[i]) {
3963			if (newret && !o) {
3964				unknown++;
3965				continue;
3966			}
3967			free(opts_copy[i]);
3968			opts_copy[i] = NULL;
3969		}
3970
3971		ret |= newret;
3972	}
3973
3974	if (unknown) {
3975		ret |= ioengine_load(td);
3976		if (td->eo) {
3977			sort_options(opts_copy, td->io_ops->options, num_opts);
3978			opts = opts_copy;
3979		}
3980		for (i = 0; i < num_opts; i++) {
3981			struct fio_option *o = NULL;
3982			int newret = 1;
3983
3984			if (!opts_copy[i])
3985				continue;
3986
3987			if (td->eo)
3988				newret = parse_option(opts_copy[i], opts[i],
3989						      td->io_ops->options, &o,
3990						      td->eo, dump_cmdline);
3991
3992			ret |= newret;
3993			if (!o) {
3994				log_err("Bad option <%s>\n", opts[i]);
3995				show_closest_option(opts[i]);
3996			}
3997			free(opts_copy[i]);
3998			opts_copy[i] = NULL;
3999		}
4000	}
4001
4002	free(opts_copy);
4003	return ret;
4004}
4005
4006int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
4007{
4008	int ret;
4009
4010	ret = parse_cmd_option(opt, val, fio_options, td);
4011	if (!ret) {
4012		struct fio_option *o;
4013
4014		o = find_option(fio_options, opt);
4015		if (o)
4016			fio_option_mark_set(&td->o, o);
4017	}
4018
4019	return ret;
4020}
4021
4022int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
4023				char *val)
4024{
4025	return parse_cmd_option(opt, val, td->io_ops->options, td->eo);
4026}
4027
4028void fio_fill_default_options(struct thread_data *td)
4029{
4030	td->o.magic = OPT_MAGIC;
4031	fill_default_options(td, fio_options);
4032}
4033
4034int fio_show_option_help(const char *opt)
4035{
4036	return show_cmd_help(fio_options, opt);
4037}
4038
4039void options_mem_dupe(void *data, struct fio_option *options)
4040{
4041	struct fio_option *o;
4042	char **ptr;
4043
4044	for (o = &options[0]; o->name; o++) {
4045		if (o->type != FIO_OPT_STR_STORE)
4046			continue;
4047
4048		ptr = td_var(data, o, o->off1);
4049		if (*ptr)
4050			*ptr = strdup(*ptr);
4051	}
4052}
4053
4054/*
4055 * dupe FIO_OPT_STR_STORE options
4056 */
4057void fio_options_mem_dupe(struct thread_data *td)
4058{
4059	options_mem_dupe(&td->o, fio_options);
4060
4061	if (td->eo && td->io_ops) {
4062		void *oldeo = td->eo;
4063
4064		td->eo = malloc(td->io_ops->option_struct_size);
4065		memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
4066		options_mem_dupe(td->eo, td->io_ops->options);
4067	}
4068}
4069
4070unsigned int fio_get_kb_base(void *data)
4071{
4072	struct thread_options *o = data;
4073	unsigned int kb_base = 0;
4074
4075	/*
4076	 * This is a hack... For private options, *data is not holding
4077	 * a pointer to the thread_options, but to private data. This means
4078	 * we can't safely dereference it, but magic is first so mem wise
4079	 * it is valid. But this also means that if the job first sets
4080	 * kb_base and expects that to be honored by private options,
4081	 * it will be disappointed. We will return the global default
4082	 * for this.
4083	 */
4084	if (o && o->magic == OPT_MAGIC)
4085		kb_base = o->kb_base;
4086	if (!kb_base)
4087		kb_base = 1024;
4088
4089	return kb_base;
4090}
4091
4092int add_option(struct fio_option *o)
4093{
4094	struct fio_option *__o;
4095	int opt_index = 0;
4096
4097	__o = fio_options;
4098	while (__o->name) {
4099		opt_index++;
4100		__o++;
4101	}
4102
4103	if (opt_index + 1 == FIO_MAX_OPTS) {
4104		log_err("fio: FIO_MAX_OPTS is too small\n");
4105		return 1;
4106	}
4107
4108	memcpy(&fio_options[opt_index], o, sizeof(*o));
4109	fio_options[opt_index + 1].name = NULL;
4110	return 0;
4111}
4112
4113void invalidate_profile_options(const char *prof_name)
4114{
4115	struct fio_option *o;
4116
4117	o = fio_options;
4118	while (o->name) {
4119		if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
4120			o->type = FIO_OPT_INVALID;
4121			o->prof_name = NULL;
4122		}
4123		o++;
4124	}
4125}
4126
4127void add_opt_posval(const char *optname, const char *ival, const char *help)
4128{
4129	struct fio_option *o;
4130	unsigned int i;
4131
4132	o = find_option(fio_options, optname);
4133	if (!o)
4134		return;
4135
4136	for (i = 0; i < PARSE_MAX_VP; i++) {
4137		if (o->posval[i].ival)
4138			continue;
4139
4140		o->posval[i].ival = ival;
4141		o->posval[i].help = help;
4142		break;
4143	}
4144}
4145
4146void del_opt_posval(const char *optname, const char *ival)
4147{
4148	struct fio_option *o;
4149	unsigned int i;
4150
4151	o = find_option(fio_options, optname);
4152	if (!o)
4153		return;
4154
4155	for (i = 0; i < PARSE_MAX_VP; i++) {
4156		if (!o->posval[i].ival)
4157			continue;
4158		if (strcmp(o->posval[i].ival, ival))
4159			continue;
4160
4161		o->posval[i].ival = NULL;
4162		o->posval[i].help = NULL;
4163	}
4164}
4165
4166void fio_options_free(struct thread_data *td)
4167{
4168	options_free(fio_options, td);
4169	if (td->eo && td->io_ops && td->io_ops->options) {
4170		options_free(td->io_ops->options, td->eo);
4171		free(td->eo);
4172		td->eo = NULL;
4173	}
4174}
4175
4176struct fio_option *fio_option_find(const char *name)
4177{
4178	return find_option(fio_options, name);
4179}
4180
4181static struct fio_option *find_next_opt(struct thread_options *o,
4182					struct fio_option *from,
4183					unsigned int off1)
4184{
4185	struct fio_option *opt;
4186
4187	if (!from)
4188		from = &fio_options[0];
4189	else
4190		from++;
4191
4192	opt = NULL;
4193	do {
4194		if (off1 == from->off1) {
4195			opt = from;
4196			break;
4197		}
4198		from++;
4199	} while (from->name);
4200
4201	return opt;
4202}
4203
4204static int opt_is_set(struct thread_options *o, struct fio_option *opt)
4205{
4206	unsigned int opt_off, index, offset;
4207
4208	opt_off = opt - &fio_options[0];
4209	index = opt_off / (8 * sizeof(uint64_t));
4210	offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
4211	return (o->set_options[index] & (1UL << offset)) != 0;
4212}
4213
4214int __fio_option_is_set(struct thread_options *o, unsigned int off1)
4215{
4216	struct fio_option *opt, *next;
4217
4218	next = NULL;
4219	while ((opt = find_next_opt(o, next, off1)) != NULL) {
4220		if (opt_is_set(o, opt))
4221			return 1;
4222
4223		next = opt;
4224	}
4225
4226	return 0;
4227}
4228
4229void fio_option_mark_set(struct thread_options *o, struct fio_option *opt)
4230{
4231	unsigned int opt_off, index, offset;
4232
4233	opt_off = opt - &fio_options[0];
4234	index = opt_off / (8 * sizeof(uint64_t));
4235	offset = opt_off & ((8 * sizeof(uint64_t)) - 1);
4236	o->set_options[index] |= 1UL << offset;
4237}
4238