18 #include "crc/crc32c.h"
21 * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
23 static char *get_opt_postfix(const char *str)
25 char *p = strstr(str, ":");
31 strip_blank_front(&p);
36 static int converthexchartoint(char a)
56 static int bs_cmp(const void *p1, const void *p2)
58 const struct bssplit *bsp1 = p1;
59 const struct bssplit *bsp2 = p2;
61 return bsp1->perc < bsp2->perc;
64 static int bssplit_ddir(struct thread_data *td, int ddir, char *str)
66 struct bssplit *bssplit;
67 unsigned int i, perc, perc_missing;
68 unsigned int max_bs, min_bs;
72 td->o.bssplit_nr[ddir] = 4;
73 bssplit = malloc(4 * sizeof(struct bssplit));
78 while ((fname = strsep(&str, ":")) != NULL) {
85 * grow struct buffer, if needed
87 if (i == td->o.bssplit_nr[ddir]) {
88 td->o.bssplit_nr[ddir] <<= 1;
89 bssplit = realloc(bssplit, td->o.bssplit_nr[ddir]
90 * sizeof(struct bssplit));
93 perc_str = strstr(fname, "/");
97 perc = atoi(perc_str);
105 if (str_to_decimal(fname, &val, 1, td)) {
106 log_err("fio: bssplit conversion failed\n");
117 bssplit[i].perc = perc;
121 td->o.bssplit_nr[ddir] = i;
124 * Now check if the percentages add up, and how much is missing
126 perc = perc_missing = 0;
127 for (i = 0; i < td->o.bssplit_nr[ddir]; i++) {
128 struct bssplit *bsp = &bssplit[i];
130 if (bsp->perc == (unsigned char) -1)
137 log_err("fio: bssplit percentages add to more than 100%%\n");
142 * If values didn't have a percentage set, divide the remains between
146 for (i = 0; i < td->o.bssplit_nr[ddir]; i++) {
147 struct bssplit *bsp = &bssplit[i];
149 if (bsp->perc == (unsigned char) -1)
150 bsp->perc = (100 - perc) / perc_missing;
154 td->o.min_bs[ddir] = min_bs;
155 td->o.max_bs[ddir] = max_bs;
158 * now sort based on percentages, for ease of lookup
160 qsort(bssplit, td->o.bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
161 td->o.bssplit[ddir] = bssplit;
165 static int str_bssplit_cb(void *data, const char *input)
167 struct thread_data *td = data;
168 char *str, *p, *odir;
171 p = str = strdup(input);
173 strip_blank_front(&str);
174 strip_blank_end(str);
176 odir = strchr(str, ',');
178 ret = bssplit_ddir(td, DDIR_WRITE, odir + 1);
181 ret = bssplit_ddir(td, DDIR_READ, str);
188 ret = bssplit_ddir(td, DDIR_READ, str);
190 ret = bssplit_ddir(td, DDIR_WRITE, op);
199 static int str_rw_cb(void *data, const char *str)
201 struct thread_data *td = data;
202 char *nr = get_opt_postfix(str);
204 td->o.ddir_seq_nr = 1;
205 td->o.ddir_seq_add = 0;
211 td->o.ddir_seq_nr = atoi(nr);
215 if (str_to_decimal(nr, &val, 1, td)) {
216 log_err("fio: rw postfix parsing failed\n");
221 td->o.ddir_seq_add = val;
228 static int str_mem_cb(void *data, const char *mem)
230 struct thread_data *td = data;
232 if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP) {
233 td->mmapfile = get_opt_postfix(mem);
234 if (td->o.mem_type == MEM_MMAPHUGE && !td->mmapfile) {
235 log_err("fio: mmaphuge:/path/to/file\n");
243 static int str_verify_cb(void *data, const char *mem)
245 struct thread_data *td = data;
247 if (td->o.verify == VERIFY_CRC32C_INTEL ||
248 td->o.verify == VERIFY_CRC32C) {
249 crc32c_intel_probe();
255 static int fio_clock_source_cb(void *data, const char *str)
257 struct thread_data *td = data;
259 fio_clock_source = td->o.clocksource;
264 static int str_lockmem_cb(void fio_unused *data, unsigned long long *val)
270 static int str_rwmix_read_cb(void *data, unsigned long long *val)
272 struct thread_data *td = data;
274 td->o.rwmix[DDIR_READ] = *val;
275 td->o.rwmix[DDIR_WRITE] = 100 - *val;
279 static int str_rwmix_write_cb(void *data, unsigned long long *val)
281 struct thread_data *td = data;
283 td->o.rwmix[DDIR_WRITE] = *val;
284 td->o.rwmix[DDIR_READ] = 100 - *val;
288 #ifdef FIO_HAVE_IOPRIO
289 static int str_prioclass_cb(void *data, unsigned long long *val)
291 struct thread_data *td = data;
295 * mask off old class bits, str_prio_cb() may have set a default class
297 mask = (1 << IOPRIO_CLASS_SHIFT) - 1;
300 td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
305 static int str_prio_cb(void *data, unsigned long long *val)
307 struct thread_data *td = data;
312 * If no class is set, assume BE
314 if ((td->ioprio >> IOPRIO_CLASS_SHIFT) == 0)
315 td->ioprio |= IOPRIO_CLASS_BE << IOPRIO_CLASS_SHIFT;
322 static int str_exitall_cb(void)
324 exitall_on_terminate = 1;
328 #ifdef FIO_HAVE_CPU_AFFINITY
329 static int str_cpumask_cb(void *data, unsigned long long *val)
331 struct thread_data *td = data;
336 ret = fio_cpuset_init(&td->o.cpumask);
338 log_err("fio: cpuset_init failed\n");
339 td_verror(td, ret, "fio_cpuset_init");
343 max_cpu = cpus_online();
345 for (i = 0; i < sizeof(int) * 8; i++) {
346 if ((1 << i) & *val) {
348 log_err("fio: CPU %d too large (max=%ld)\n", i,
352 dprint(FD_PARSE, "set cpu allowed %d\n", i);
353 fio_cpu_set(&td->o.cpumask, i);
357 td->o.cpumask_set = 1;
361 static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
368 ret = fio_cpuset_init(mask);
370 log_err("fio: cpuset_init failed\n");
371 td_verror(td, ret, "fio_cpuset_init");
375 p = str = strdup(input);
377 strip_blank_front(&str);
378 strip_blank_end(str);
380 max_cpu = cpus_online();
382 while ((cpu = strsep(&str, ",")) != NULL) {
391 while ((cpu2 = strsep(&str2, "-")) != NULL) {
401 while (icpu <= icpu2) {
402 if (icpu >= FIO_MAX_CPUS) {
403 log_err("fio: your OS only supports up to"
404 " %d CPUs\n", (int) FIO_MAX_CPUS);
408 if (icpu > max_cpu) {
409 log_err("fio: CPU %d too large (max=%ld)\n",
415 dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
416 fio_cpu_set(mask, icpu);
425 td->o.cpumask_set = 1;
429 static int str_cpus_allowed_cb(void *data, const char *input)
431 struct thread_data *td = data;
434 ret = set_cpus_allowed(td, &td->o.cpumask, input);
436 td->o.cpumask_set = 1;
441 static int str_verify_cpus_allowed_cb(void *data, const char *input)
443 struct thread_data *td = data;
446 ret = set_cpus_allowed(td, &td->o.verify_cpumask, input);
448 td->o.verify_cpumask_set = 1;
455 static int str_verify_trim_cb(void *data, unsigned long long *val)
457 struct thread_data *td = data;
459 td->o.trim_percentage = *val;
464 static int str_fst_cb(void *data, const char *str)
466 struct thread_data *td = data;
467 char *nr = get_opt_postfix(str);
469 td->file_service_nr = 1;
471 td->file_service_nr = atoi(nr);
478 #ifdef FIO_HAVE_SYNC_FILE_RANGE
479 static int str_sfr_cb(void *data, const char *str)
481 struct thread_data *td = data;
482 char *nr = get_opt_postfix(str);
484 td->sync_file_range_nr = 1;
486 td->sync_file_range_nr = atoi(nr);
494 static int check_dir(struct thread_data *td, char *fname)
497 char file[PATH_MAX], *dir;
500 if (td->o.directory) {
501 strcpy(file, td->o.directory);
506 sprintf(file + elen, "%s", fname);
512 * We can't do this on FIO_DISKLESSIO engines. The engine isn't loaded
513 * yet, so we can't do this check right here...
515 if (lstat(dir, &sb) < 0) {
518 log_err("fio: %s is not a directory\n", dir);
519 td_verror(td, ret, "lstat");
523 if (!S_ISDIR(sb.st_mode)) {
524 log_err("fio: %s is not a directory\n", dir);
534 * Return next file in the string. Files are separated with ':'. If the ':'
535 * is escaped with a '\', then that ':' is part of the filename and does not
536 * indicate a new file.
538 static char *get_next_file_name(char **ptr)
543 if (!str || !strlen(str))
549 * No colon, we are done
551 p = strchr(str, ':');
558 * We got a colon, but it's the first character. Skip and
566 if (*(p - 1) != '\\') {
572 memmove(p - 1, p, strlen(p) + 1);
579 static int str_filename_cb(void *data, const char *input)
581 struct thread_data *td = data;
582 char *fname, *str, *p;
584 p = str = strdup(input);
586 strip_blank_front(&str);
587 strip_blank_end(str);
589 if (!td->files_index)
592 while ((fname = get_next_file_name(&str)) != NULL) {
595 if (check_dir(td, fname)) {
607 static int str_directory_cb(void *data, const char fio_unused *str)
609 struct thread_data *td = data;
612 if (lstat(td->o.directory, &sb) < 0) {
615 log_err("fio: %s is not a directory\n", td->o.directory);
616 td_verror(td, ret, "lstat");
619 if (!S_ISDIR(sb.st_mode)) {
620 log_err("fio: %s is not a directory\n", td->o.directory);
627 static int str_opendir_cb(void *data, const char fio_unused *str)
629 struct thread_data *td = data;
631 if (!td->files_index)
634 return add_dir_files(td, td->o.opendir);
637 static int str_verify_offset_cb(void *data, unsigned long long *off)
639 struct thread_data *td = data;
641 if (*off && *off < sizeof(struct verify_header)) {
642 log_err("fio: verify_offset too small\n");
646 td->o.verify_offset = *off;
650 static int str_verify_pattern_cb(void *data, const char *input)
652 struct thread_data *td = data;
654 int i = 0, j = 0, len, k, base = 10;
657 loc1 = strstr(input, "0x");
658 loc2 = strstr(input, "0X");
661 off = strtol(input, NULL, base);
662 if (off != LONG_MAX || errno != ERANGE) {
664 td->o.verify_pattern[i] = off & 0xff;
673 j = loc1 - input + 2;
675 j = loc2 - input + 2;
678 if (len - j < MAX_PATTERN_SIZE * 2) {
680 off = converthexchartoint(input[k--]);
682 off += (converthexchartoint(input[k--])
684 td->o.verify_pattern[i++] = (char) off;
690 * Fill the pattern all the way to the end. This greatly reduces
691 * the number of memcpy's we have to do when verifying the IO.
693 while (i > 1 && i * 2 <= MAX_PATTERN_SIZE) {
694 memcpy(&td->o.verify_pattern[i], &td->o.verify_pattern[0], i);
699 * The code in verify_io_u_pattern assumes a single byte pattern
700 * fills the whole verify pattern buffer.
702 memset(td->o.verify_pattern, td->o.verify_pattern[0],
706 td->o.verify_pattern_bytes = i;
709 * VERIFY_META could already be set
711 if (td->o.verify == VERIFY_NONE)
712 td->o.verify = VERIFY_PATTERN;
717 static int str_lockfile_cb(void *data, const char *str)
719 struct thread_data *td = data;
720 char *nr = get_opt_postfix(str);
722 td->o.lockfile_batch = 1;
724 td->o.lockfile_batch = atoi(nr);
731 static int str_write_bw_log_cb(void *data, const char *str)
733 struct thread_data *td = data;
736 td->o.bw_log_file = strdup(str);
738 td->o.write_bw_log = 1;
742 static int str_write_lat_log_cb(void *data, const char *str)
744 struct thread_data *td = data;
747 td->o.lat_log_file = strdup(str);
749 td->o.write_lat_log = 1;
753 static int str_write_iops_log_cb(void *data, const char *str)
755 struct thread_data *td = data;
758 td->o.iops_log_file = strdup(str);
760 td->o.write_iops_log = 1;
764 static int str_gtod_reduce_cb(void *data, int *il)
766 struct thread_data *td = data;
769 td->o.disable_lat = !!val;
770 td->o.disable_clat = !!val;
771 td->o.disable_slat = !!val;
772 td->o.disable_bw = !!val;
773 td->o.clat_percentiles = !val;
775 td->tv_cache_mask = 63;
780 static int str_gtod_cpu_cb(void *data, long long *il)
782 struct thread_data *td = data;
785 td->o.gtod_cpu = val;
786 td->o.gtod_offload = 1;
790 static int str_size_cb(void *data, unsigned long long *__val)
792 struct thread_data *td = data;
793 unsigned long long v = *__val;
795 if (parse_is_percent(v)) {
797 td->o.size_percent = -1ULL - v;
804 static int rw_verify(struct fio_option *o, void *data)
806 struct thread_data *td = data;
808 if (read_only && td_write(td)) {
809 log_err("fio: job <%s> has write bit set, but fio is in"
810 " read-only mode\n", td->o.name);
817 static int gtod_cpu_verify(struct fio_option *o, void *data)
819 #ifndef FIO_HAVE_CPU_AFFINITY
820 struct thread_data *td = data;
822 if (td->o.gtod_cpu) {
823 log_err("fio: platform must support CPU affinity for"
824 "gettimeofday() offloading\n");
832 static int kb_base_verify(struct fio_option *o, void *data)
834 struct thread_data *td = data;
836 if (td->o.kb_base != 1024 && td->o.kb_base != 1000) {
837 log_err("fio: kb_base set to nonsensical value: %u\n",
848 static struct opt_group fio_opt_groups[] = {
851 .mask = FIO_OPT_C_GENERAL,
855 .mask = FIO_OPT_C_IO,
859 .mask = FIO_OPT_C_FILE,
862 .name = "Statistics",
863 .mask = FIO_OPT_C_STAT,
867 .mask = FIO_OPT_C_LOG,
874 static struct opt_group *__opt_group_from_mask(struct opt_group *ogs, unsigned int *mask,
875 unsigned int inv_mask)
877 struct opt_group *og;
880 if (*mask == inv_mask || !*mask)
883 for (i = 0; ogs[i].name; i++) {
886 if (*mask & og->mask) {
887 *mask &= ~(og->mask);
895 struct opt_group *opt_group_from_mask(unsigned int *mask)
897 return __opt_group_from_mask(fio_opt_groups, mask, FIO_OPT_C_INVALID);
900 static struct opt_group fio_opt_cat_groups[] = {
903 .mask = FIO_OPT_G_RATE,
907 .mask = FIO_OPT_G_ZONE,
910 .name = "Read/write mix",
911 .mask = FIO_OPT_G_RWMIX,
915 .mask = FIO_OPT_G_VERIFY,
919 .mask = FIO_OPT_G_TRIM,
922 .name = "I/O Logging",
923 .mask = FIO_OPT_G_IOLOG,
927 .mask = FIO_OPT_G_IO_DEPTH,
931 .mask = FIO_OPT_G_IO_FLOW,
934 .name = "Description",
935 .mask = FIO_OPT_G_DESC,
939 .mask = FIO_OPT_G_FILENAME,
942 .name = "General I/O",
943 .mask = FIO_OPT_G_IO_BASIC,
947 .mask = FIO_OPT_G_CGROUP,
951 .mask = FIO_OPT_G_RUNTIME,
955 .mask = FIO_OPT_G_PROCESS,
958 .name = "Job credentials / priority",
959 .mask = FIO_OPT_G_CRED,
962 .name = "Clock settings",
963 .mask = FIO_OPT_G_CLOCK,
970 struct opt_group *opt_group_cat_from_mask(unsigned int *mask)
972 return __opt_group_from_mask(fio_opt_cat_groups, mask, FIO_OPT_G_INVALID);
976 * Map of job/command line options
978 struct fio_option fio_options[FIO_MAX_OPTS] = {
980 .name = "description",
981 .lname = "Description of job",
982 .type = FIO_OPT_STR_STORE,
983 .off1 = td_var_offset(description),
984 .help = "Text job description",
985 .category = FIO_OPT_C_GENERAL,
986 .group = FIO_OPT_G_DESC,
991 .type = FIO_OPT_STR_STORE,
992 .off1 = td_var_offset(name),
993 .help = "Name of this job",
994 .category = FIO_OPT_C_GENERAL,
995 .group = FIO_OPT_G_DESC,
999 .lname = "Filename(s)",
1000 .type = FIO_OPT_STR_STORE,
1001 .off1 = td_var_offset(filename),
1002 .cb = str_filename_cb,
1003 .prio = -1, /* must come after "directory" */
1004 .help = "File(s) to use for the workload",
1005 .category = FIO_OPT_C_FILE,
1006 .group = FIO_OPT_G_FILENAME,
1009 .name = "directory",
1010 .lname = "Directory",
1011 .type = FIO_OPT_STR_STORE,
1012 .off1 = td_var_offset(directory),
1013 .cb = str_directory_cb,
1014 .help = "Directory to store files in",
1015 .category = FIO_OPT_C_FILE,
1016 .group = FIO_OPT_G_FILENAME,
1020 .lname = "Lockfile",
1021 .type = FIO_OPT_STR,
1022 .cb = str_lockfile_cb,
1023 .off1 = td_var_offset(file_lock_mode),
1024 .help = "Lock file when doing IO to it",
1025 .parent = "filename",
1028 .category = FIO_OPT_C_FILE,
1029 .group = FIO_OPT_G_FILENAME,
1032 .oval = FILE_LOCK_NONE,
1033 .help = "No file locking",
1035 { .ival = "exclusive",
1036 .oval = FILE_LOCK_EXCLUSIVE,
1037 .help = "Exclusive file lock",
1040 .ival = "readwrite",
1041 .oval = FILE_LOCK_READWRITE,
1042 .help = "Read vs write lock",
1048 .lname = "Open directory",
1049 .type = FIO_OPT_STR_STORE,
1050 .off1 = td_var_offset(opendir),
1051 .cb = str_opendir_cb,
1052 .help = "Recursively add files from this directory and down",
1053 .category = FIO_OPT_C_FILE,
1054 .group = FIO_OPT_G_FILENAME,
1058 .lname = "Read/write",
1059 .alias = "readwrite",
1060 .type = FIO_OPT_STR,
1062 .off1 = td_var_offset(td_ddir),
1063 .help = "IO direction",
1065 .verify = rw_verify,
1066 .category = FIO_OPT_C_IO,
1067 .group = FIO_OPT_G_IO_BASIC,
1070 .oval = TD_DDIR_READ,
1071 .help = "Sequential read",
1074 .oval = TD_DDIR_WRITE,
1075 .help = "Sequential write",
1077 { .ival = "randread",
1078 .oval = TD_DDIR_RANDREAD,
1079 .help = "Random read",
1081 { .ival = "randwrite",
1082 .oval = TD_DDIR_RANDWRITE,
1083 .help = "Random write",
1087 .help = "Sequential read and write mix",
1090 .oval = TD_DDIR_RANDRW,
1091 .help = "Random read and write mix"
1096 .name = "rw_sequencer",
1097 .lname = "RW Sequencer",
1098 .type = FIO_OPT_STR,
1099 .off1 = td_var_offset(rw_seq),
1100 .help = "IO offset generator modifier",
1101 .def = "sequential",
1102 .category = FIO_OPT_C_IO,
1103 .group = FIO_OPT_G_IO_BASIC,
1105 { .ival = "sequential",
1107 .help = "Generate sequential offsets",
1109 { .ival = "identical",
1110 .oval = RW_SEQ_IDENT,
1111 .help = "Generate identical offsets",
1118 .lname = "IO Engine",
1119 .type = FIO_OPT_STR_STORE,
1120 .off1 = td_var_offset(ioengine),
1121 .help = "IO engine to use",
1122 .def = FIO_PREFERRED_ENGINE,
1123 .category = FIO_OPT_C_IO,
1124 .group = FIO_OPT_G_IO_BASIC,
1127 .help = "Use read/write",
1130 .help = "Use pread/pwrite",
1133 .help = "Use readv/writev",
1135 #ifdef FIO_HAVE_LIBAIO
1137 .help = "Linux native asynchronous IO",
1140 #ifdef FIO_HAVE_POSIXAIO
1141 { .ival = "posixaio",
1142 .help = "POSIX asynchronous IO",
1145 #ifdef FIO_HAVE_SOLARISAIO
1146 { .ival = "solarisaio",
1147 .help = "Solaris native asynchronous IO",
1150 #ifdef FIO_HAVE_WINDOWSAIO
1151 { .ival = "windowsaio",
1152 .help = "Windows native asynchronous IO"
1156 .help = "Memory mapped IO"
1158 #ifdef FIO_HAVE_SPLICE
1160 .help = "splice/vmsplice based IO",
1162 { .ival = "netsplice",
1163 .help = "splice/vmsplice to/from the network",
1166 #ifdef FIO_HAVE_SGIO
1168 .help = "SCSI generic v3 IO",
1172 .help = "Testing engine (no data transfer)",
1175 .help = "Network IO",
1177 #ifdef FIO_HAVE_SYSLET
1178 { .ival = "syslet-rw",
1179 .help = "syslet enabled async pread/pwrite IO",
1183 .help = "CPU cycle burner engine",
1185 #ifdef FIO_HAVE_GUASI
1187 .help = "GUASI IO engine",
1190 #ifdef FIO_HAVE_BINJECT
1191 { .ival = "binject",
1192 .help = "binject direct inject block engine",
1195 #ifdef FIO_HAVE_RDMA
1197 .help = "RDMA IO engine",
1200 { .ival = "external",
1201 .help = "Load external engine (append name)",
1207 .lname = "IO Depth",
1208 .type = FIO_OPT_INT,
1209 .off1 = td_var_offset(iodepth),
1210 .help = "Number of IO buffers to keep in flight",
1214 .category = FIO_OPT_C_IO,
1215 .group = FIO_OPT_G_IO_BASIC,
1218 .name = "iodepth_batch",
1219 .lname = "IO Depth batch",
1220 .alias = "iodepth_batch_submit",
1221 .type = FIO_OPT_INT,
1222 .off1 = td_var_offset(iodepth_batch),
1223 .help = "Number of IO buffers to submit in one go",
1224 .parent = "iodepth",
1229 .category = FIO_OPT_C_IO,
1230 .group = FIO_OPT_G_IO_BASIC,
1233 .name = "iodepth_batch_complete",
1234 .lname = "IO Depth batch complete",
1235 .type = FIO_OPT_INT,
1236 .off1 = td_var_offset(iodepth_batch_complete),
1237 .help = "Number of IO buffers to retrieve in one go",
1238 .parent = "iodepth",
1243 .category = FIO_OPT_C_IO,
1244 .group = FIO_OPT_G_IO_BASIC,
1247 .name = "iodepth_low",
1248 .lname = "IO Depth batch low",
1249 .type = FIO_OPT_INT,
1250 .off1 = td_var_offset(iodepth_low),
1251 .help = "Low water mark for queuing depth",
1252 .parent = "iodepth",
1255 .category = FIO_OPT_C_IO,
1256 .group = FIO_OPT_G_IO_BASIC,
1261 .type = FIO_OPT_STR_VAL,
1263 .help = "Total size of device or files",
1264 .interval = 1024 * 1024,
1265 .category = FIO_OPT_C_IO,
1266 .group = FIO_OPT_G_INVALID,
1269 .name = "fill_device",
1270 .lname = "Fill device",
1272 .type = FIO_OPT_BOOL,
1273 .off1 = td_var_offset(fill_device),
1274 .help = "Write until an ENOSPC error occurs",
1276 .category = FIO_OPT_C_FILE,
1277 .group = FIO_OPT_G_INVALID,
1281 .lname = "File size",
1282 .type = FIO_OPT_STR_VAL,
1283 .off1 = td_var_offset(file_size_low),
1284 .off2 = td_var_offset(file_size_high),
1286 .help = "Size of individual files",
1287 .interval = 1024 * 1024,
1288 .category = FIO_OPT_C_FILE,
1289 .group = FIO_OPT_G_INVALID,
1293 .lname = "IO offset",
1294 .alias = "fileoffset",
1295 .type = FIO_OPT_STR_VAL,
1296 .off1 = td_var_offset(start_offset),
1297 .help = "Start IO from this offset",
1299 .interval = 1024 * 1024,
1300 .category = FIO_OPT_C_IO,
1301 .group = FIO_OPT_G_INVALID,
1304 .name = "offset_increment",
1305 .lname = "IO offset increment",
1306 .type = FIO_OPT_STR_VAL,
1307 .off1 = td_var_offset(offset_increment),
1308 .help = "What is the increment from one offset to the next",
1312 .interval = 1024 * 1024,
1313 .category = FIO_OPT_C_IO,
1314 .group = FIO_OPT_G_INVALID,
1318 .lname = "Block size",
1319 .alias = "blocksize",
1320 .type = FIO_OPT_INT,
1321 .off1 = td_var_offset(bs[DDIR_READ]),
1322 .off2 = td_var_offset(bs[DDIR_WRITE]),
1324 .help = "Block size unit",
1329 .category = FIO_OPT_C_IO,
1330 .group = FIO_OPT_G_INVALID,
1334 .lname = "Block size align",
1335 .alias = "blockalign",
1336 .type = FIO_OPT_INT,
1337 .off1 = td_var_offset(ba[DDIR_READ]),
1338 .off2 = td_var_offset(ba[DDIR_WRITE]),
1340 .help = "IO block offset alignment",
1344 .category = FIO_OPT_C_IO,
1345 .group = FIO_OPT_G_INVALID,
1349 .lname = "Block size range",
1350 .alias = "blocksize_range",
1351 .type = FIO_OPT_RANGE,
1352 .off1 = td_var_offset(min_bs[DDIR_READ]),
1353 .off2 = td_var_offset(max_bs[DDIR_READ]),
1354 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
1355 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
1357 .help = "Set block size range (in more detail than bs)",
1361 .category = FIO_OPT_C_IO,
1362 .group = FIO_OPT_G_INVALID,
1366 .lname = "Block size split",
1367 .type = FIO_OPT_STR,
1368 .cb = str_bssplit_cb,
1369 .help = "Set a specific mix of block sizes",
1372 .category = FIO_OPT_C_IO,
1373 .group = FIO_OPT_G_INVALID,
1376 .name = "bs_unaligned",
1377 .lname = "Block size unaligned",
1378 .alias = "blocksize_unaligned",
1379 .type = FIO_OPT_STR_SET,
1380 .off1 = td_var_offset(bs_unaligned),
1381 .help = "Don't sector align IO buffer sizes",
1384 .category = FIO_OPT_C_IO,
1385 .group = FIO_OPT_G_INVALID,
1388 .name = "randrepeat",
1389 .lname = "Random repeatable",
1390 .type = FIO_OPT_BOOL,
1391 .off1 = td_var_offset(rand_repeatable),
1392 .help = "Use repeatable random IO pattern",
1396 .category = FIO_OPT_C_IO,
1397 .group = FIO_OPT_G_INVALID,
1400 .name = "use_os_rand",
1401 .lname = "Use OS random",
1402 .type = FIO_OPT_BOOL,
1403 .off1 = td_var_offset(use_os_rand),
1404 .help = "Set to use OS random generator",
1408 .category = FIO_OPT_C_IO,
1409 .group = FIO_OPT_G_INVALID,
1412 .name = "norandommap",
1413 .lname = "No randommap",
1414 .type = FIO_OPT_STR_SET,
1415 .off1 = td_var_offset(norandommap),
1416 .help = "Accept potential duplicate random blocks",
1419 .category = FIO_OPT_C_IO,
1420 .group = FIO_OPT_G_INVALID,
1423 .name = "softrandommap",
1424 .lname = "Soft randommap",
1425 .type = FIO_OPT_BOOL,
1426 .off1 = td_var_offset(softrandommap),
1427 .help = "Set norandommap if randommap allocation fails",
1428 .parent = "norandommap",
1431 .category = FIO_OPT_C_IO,
1432 .group = FIO_OPT_G_INVALID,
1436 .lname = "Number of files",
1437 .alias = "nr_files",
1438 .type = FIO_OPT_INT,
1439 .off1 = td_var_offset(nr_files),
1440 .help = "Split job workload between this number of files",
1443 .category = FIO_OPT_C_FILE,
1444 .group = FIO_OPT_G_INVALID,
1447 .name = "openfiles",
1448 .lname = "Number of open files",
1449 .type = FIO_OPT_INT,
1450 .off1 = td_var_offset(open_files),
1451 .help = "Number of files to keep open at the same time",
1452 .category = FIO_OPT_C_FILE,
1453 .group = FIO_OPT_G_INVALID,
1456 .name = "file_service_type",
1457 .lname = "File service type",
1458 .type = FIO_OPT_STR,
1460 .off1 = td_var_offset(file_service_type),
1461 .help = "How to select which file to service next",
1462 .def = "roundrobin",
1463 .category = FIO_OPT_C_FILE,
1464 .group = FIO_OPT_G_INVALID,
1467 .oval = FIO_FSERVICE_RANDOM,
1468 .help = "Choose a file at random",
1470 { .ival = "roundrobin",
1471 .oval = FIO_FSERVICE_RR,
1472 .help = "Round robin select files",
1474 { .ival = "sequential",
1475 .oval = FIO_FSERVICE_SEQ,
1476 .help = "Finish one file before moving to the next",
1479 .parent = "nrfiles",
1482 #ifdef FIO_HAVE_FALLOCATE
1484 .name = "fallocate",
1485 .lname = "Fallocate",
1486 .type = FIO_OPT_STR,
1487 .off1 = td_var_offset(fallocate_mode),
1488 .help = "Whether pre-allocation is performed when laying out files",
1490 .category = FIO_OPT_C_FILE,
1491 .group = FIO_OPT_G_INVALID,
1494 .oval = FIO_FALLOCATE_NONE,
1495 .help = "Do not pre-allocate space",
1498 .oval = FIO_FALLOCATE_POSIX,
1499 .help = "Use posix_fallocate()",
1501 #ifdef FIO_HAVE_LINUX_FALLOCATE
1503 .oval = FIO_FALLOCATE_KEEP_SIZE,
1504 .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
1507 /* Compatibility with former boolean values */
1509 .oval = FIO_FALLOCATE_NONE,
1510 .help = "Alias for 'none'",
1513 .oval = FIO_FALLOCATE_POSIX,
1514 .help = "Alias for 'posix'",
1518 #endif /* FIO_HAVE_FALLOCATE */
1520 .name = "fadvise_hint",
1521 .lname = "Fadvise hint",
1522 .type = FIO_OPT_BOOL,
1523 .off1 = td_var_offset(fadvise_hint),
1524 .help = "Use fadvise() to advise the kernel on IO pattern",
1526 .category = FIO_OPT_C_FILE,
1527 .group = FIO_OPT_G_INVALID,
1532 .type = FIO_OPT_INT,
1533 .off1 = td_var_offset(fsync_blocks),
1534 .help = "Issue fsync for writes every given number of blocks",
1537 .category = FIO_OPT_C_FILE,
1538 .group = FIO_OPT_G_INVALID,
1541 .name = "fdatasync",
1542 .lname = "Fdatasync",
1543 .type = FIO_OPT_INT,
1544 .off1 = td_var_offset(fdatasync_blocks),
1545 .help = "Issue fdatasync for writes every given number of blocks",
1548 .category = FIO_OPT_C_FILE,
1549 .group = FIO_OPT_G_INVALID,
1552 .name = "write_barrier",
1553 .lname = "Write barrier",
1554 .type = FIO_OPT_INT,
1555 .off1 = td_var_offset(barrier_blocks),
1556 .help = "Make every Nth write a barrier write",
1559 .category = FIO_OPT_C_IO,
1560 .group = FIO_OPT_G_INVALID,
1562 #ifdef FIO_HAVE_SYNC_FILE_RANGE
1564 .name = "sync_file_range",
1565 .lname = "Sync file range",
1567 { .ival = "wait_before",
1568 .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
1569 .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
1573 .oval = SYNC_FILE_RANGE_WRITE,
1574 .help = "SYNC_FILE_RANGE_WRITE",
1578 .ival = "wait_after",
1579 .oval = SYNC_FILE_RANGE_WAIT_AFTER,
1580 .help = "SYNC_FILE_RANGE_WAIT_AFTER",
1584 .type = FIO_OPT_STR_MULTI,
1586 .off1 = td_var_offset(sync_file_range),
1587 .help = "Use sync_file_range()",
1588 .category = FIO_OPT_C_FILE,
1589 .group = FIO_OPT_G_INVALID,
1594 .lname = "Direct I/O",
1595 .type = FIO_OPT_BOOL,
1596 .off1 = td_var_offset(odirect),
1597 .help = "Use O_DIRECT IO (negates buffered)",
1599 .inverse = "buffered",
1600 .category = FIO_OPT_C_IO,
1601 .group = FIO_OPT_G_INVALID,
1605 .lname = "Buffered I/O",
1606 .type = FIO_OPT_BOOL,
1607 .off1 = td_var_offset(odirect),
1609 .help = "Use buffered IO (negates direct)",
1611 .inverse = "direct",
1612 .category = FIO_OPT_C_IO,
1613 .group = FIO_OPT_G_INVALID,
1616 .name = "overwrite",
1617 .lname = "Overwrite",
1618 .type = FIO_OPT_BOOL,
1619 .off1 = td_var_offset(overwrite),
1620 .help = "When writing, set whether to overwrite current data",
1622 .category = FIO_OPT_C_FILE,
1623 .group = FIO_OPT_G_INVALID,
1628 .type = FIO_OPT_INT,
1629 .off1 = td_var_offset(loops),
1630 .help = "Number of times to run the job",
1633 .category = FIO_OPT_C_GENERAL,
1634 .group = FIO_OPT_G_RUNTIME,
1638 .lname = "Number of jobs",
1639 .type = FIO_OPT_INT,
1640 .off1 = td_var_offset(numjobs),
1641 .help = "Duplicate this job this many times",
1644 .category = FIO_OPT_C_GENERAL,
1645 .group = FIO_OPT_G_RUNTIME,
1648 .name = "startdelay",
1649 .lname = "Start delay",
1650 .type = FIO_OPT_STR_VAL_TIME,
1651 .off1 = td_var_offset(start_delay),
1652 .help = "Only start job when this period has passed",
1654 .category = FIO_OPT_C_GENERAL,
1655 .group = FIO_OPT_G_RUNTIME,
1661 .type = FIO_OPT_STR_VAL_TIME,
1662 .off1 = td_var_offset(timeout),
1663 .help = "Stop workload when this amount of time has passed",
1665 .category = FIO_OPT_C_GENERAL,
1666 .group = FIO_OPT_G_RUNTIME,
1669 .name = "time_based",
1670 .lname = "Time based",
1671 .type = FIO_OPT_STR_SET,
1672 .off1 = td_var_offset(time_based),
1673 .help = "Keep running until runtime/timeout is met",
1674 .category = FIO_OPT_C_GENERAL,
1675 .group = FIO_OPT_G_RUNTIME,
1678 .name = "ramp_time",
1679 .lname = "Ramp time",
1680 .type = FIO_OPT_STR_VAL_TIME,
1681 .off1 = td_var_offset(ramp_time),
1682 .help = "Ramp up time before measuring performance",
1683 .category = FIO_OPT_C_GENERAL,
1684 .group = FIO_OPT_G_RUNTIME,
1687 .name = "clocksource",
1688 .lname = "Clock source",
1689 .type = FIO_OPT_STR,
1690 .cb = fio_clock_source_cb,
1691 .off1 = td_var_offset(clocksource),
1692 .help = "What type of timing source to use",
1693 .category = FIO_OPT_C_GENERAL,
1694 .group = FIO_OPT_G_CLOCK,
1696 { .ival = "gettimeofday",
1698 .help = "Use gettimeofday(2) for timing",
1700 { .ival = "clock_gettime",
1701 .oval = CS_CGETTIME,
1702 .help = "Use clock_gettime(2) for timing",
1704 #ifdef ARCH_HAVE_CPU_CLOCK
1706 .oval = CS_CPUCLOCK,
1707 .help = "Use CPU private clock",
1715 .lname = "I/O Memory",
1716 .type = FIO_OPT_STR,
1718 .off1 = td_var_offset(mem_type),
1719 .help = "Backing type for IO buffers",
1721 .category = FIO_OPT_C_IO,
1722 .group = FIO_OPT_G_INVALID,
1726 .help = "Use malloc(3) for IO buffers",
1730 .help = "Use shared memory segments for IO buffers",
1732 #ifdef FIO_HAVE_HUGETLB
1733 { .ival = "shmhuge",
1734 .oval = MEM_SHMHUGE,
1735 .help = "Like shm, but use huge pages",
1740 .help = "Use mmap(2) (file or anon) for IO buffers",
1742 #ifdef FIO_HAVE_HUGETLB
1743 { .ival = "mmaphuge",
1744 .oval = MEM_MMAPHUGE,
1745 .help = "Like mmap, but use huge pages",
1751 .name = "iomem_align",
1752 .alias = "mem_align",
1753 .lname = "I/O memory alignment",
1754 .type = FIO_OPT_INT,
1755 .off1 = td_var_offset(mem_align),
1757 .help = "IO memory buffer offset alignment",
1761 .category = FIO_OPT_C_IO,
1762 .group = FIO_OPT_G_INVALID,
1767 .type = FIO_OPT_STR,
1768 .off1 = td_var_offset(verify),
1769 .help = "Verify data written",
1770 .cb = str_verify_cb,
1772 .category = FIO_OPT_C_IO,
1773 .group = FIO_OPT_G_INVALID,
1776 .oval = VERIFY_NONE,
1777 .help = "Don't do IO verification",
1781 .help = "Use md5 checksums for verification",
1784 .oval = VERIFY_CRC64,
1785 .help = "Use crc64 checksums for verification",
1788 .oval = VERIFY_CRC32,
1789 .help = "Use crc32 checksums for verification",
1791 { .ival = "crc32c-intel",
1792 .oval = VERIFY_CRC32C,
1793 .help = "Use crc32c checksums for verification (hw assisted, if available)",
1796 .oval = VERIFY_CRC32C,
1797 .help = "Use crc32c checksums for verification (hw assisted, if available)",
1800 .oval = VERIFY_CRC16,
1801 .help = "Use crc16 checksums for verification",
1804 .oval = VERIFY_CRC7,
1805 .help = "Use crc7 checksums for verification",
1808 .oval = VERIFY_SHA1,
1809 .help = "Use sha1 checksums for verification",
1812 .oval = VERIFY_SHA256,
1813 .help = "Use sha256 checksums for verification",
1816 .oval = VERIFY_SHA512,
1817 .help = "Use sha512 checksums for verification",
1820 .oval = VERIFY_META,
1821 .help = "Use io information",
1825 .oval = VERIFY_NULL,
1826 .help = "Pretend to verify",
1831 .name = "do_verify",
1832 .lname = "Perform verify step",
1833 .type = FIO_OPT_BOOL,
1834 .off1 = td_var_offset(do_verify),
1835 .help = "Run verification stage after write",
1839 .category = FIO_OPT_C_IO,
1840 .group = FIO_OPT_G_VERIFY,
1843 .name = "verifysort",
1844 .lname = "Verify sort",
1845 .type = FIO_OPT_BOOL,
1846 .off1 = td_var_offset(verifysort),
1847 .help = "Sort written verify blocks for read back",
1851 .category = FIO_OPT_C_IO,
1852 .group = FIO_OPT_G_VERIFY,
1855 .name = "verify_interval",
1856 .lname = "Verify interval",
1857 .type = FIO_OPT_INT,
1858 .off1 = td_var_offset(verify_interval),
1859 .minval = 2 * sizeof(struct verify_header),
1860 .help = "Store verify buffer header every N bytes",
1863 .interval = 2 * sizeof(struct verify_header),
1864 .category = FIO_OPT_C_IO,
1865 .group = FIO_OPT_G_VERIFY,
1868 .name = "verify_offset",
1869 .lname = "Verify offset",
1870 .type = FIO_OPT_INT,
1871 .help = "Offset verify header location by N bytes",
1873 .cb = str_verify_offset_cb,
1876 .category = FIO_OPT_C_IO,
1877 .group = FIO_OPT_G_VERIFY,
1880 .name = "verify_pattern",
1881 .lname = "Verify pattern",
1882 .type = FIO_OPT_STR,
1883 .cb = str_verify_pattern_cb,
1884 .help = "Fill pattern for IO buffers",
1887 .category = FIO_OPT_C_IO,
1888 .group = FIO_OPT_G_VERIFY,
1891 .name = "verify_fatal",
1892 .lname = "Verify fatal",
1893 .type = FIO_OPT_BOOL,
1894 .off1 = td_var_offset(verify_fatal),
1896 .help = "Exit on a single verify failure, don't continue",
1899 .category = FIO_OPT_C_IO,
1900 .group = FIO_OPT_G_VERIFY,
1903 .name = "verify_dump",
1904 .lname = "Verify dump",
1905 .type = FIO_OPT_BOOL,
1906 .off1 = td_var_offset(verify_dump),
1908 .help = "Dump contents of good and bad blocks on failure",
1911 .category = FIO_OPT_C_IO,
1912 .group = FIO_OPT_G_VERIFY,
1915 .name = "verify_async",
1916 .lname = "Verify asynchronously",
1917 .type = FIO_OPT_INT,
1918 .off1 = td_var_offset(verify_async),
1920 .help = "Number of async verifier threads to use",
1923 .category = FIO_OPT_C_IO,
1924 .group = FIO_OPT_G_VERIFY,
1927 .name = "verify_backlog",
1928 .lname = "Verify backlog",
1929 .type = FIO_OPT_STR_VAL,
1930 .off1 = td_var_offset(verify_backlog),
1931 .help = "Verify after this number of blocks are written",
1934 .category = FIO_OPT_C_IO,
1935 .group = FIO_OPT_G_VERIFY,
1938 .name = "verify_backlog_batch",
1939 .lname = "Verify backlog batch",
1940 .type = FIO_OPT_INT,
1941 .off1 = td_var_offset(verify_batch),
1942 .help = "Verify this number of IO blocks",
1945 .category = FIO_OPT_C_IO,
1946 .group = FIO_OPT_G_VERIFY,
1948 #ifdef FIO_HAVE_CPU_AFFINITY
1950 .name = "verify_async_cpus",
1951 .lname = "Async verify CPUs",
1952 .type = FIO_OPT_STR,
1953 .cb = str_verify_cpus_allowed_cb,
1954 .help = "Set CPUs allowed for async verify threads",
1955 .parent = "verify_async",
1957 .category = FIO_OPT_C_IO,
1958 .group = FIO_OPT_G_VERIFY,
1961 #ifdef FIO_HAVE_TRIM
1963 .name = "trim_percentage",
1964 .lname = "Trim percentage",
1965 .type = FIO_OPT_INT,
1966 .cb = str_verify_trim_cb,
1969 .help = "Number of verify blocks to discard/trim",
1974 .category = FIO_OPT_C_IO,
1975 .group = FIO_OPT_G_TRIM,
1978 .name = "trim_verify_zero",
1979 .lname = "Verify trim zero",
1980 .type = FIO_OPT_BOOL,
1981 .help = "Verify that trim/discarded blocks are returned as zeroes",
1982 .off1 = td_var_offset(trim_zero),
1983 .parent = "trim_percentage",
1986 .category = FIO_OPT_C_IO,
1987 .group = FIO_OPT_G_TRIM,
1990 .name = "trim_backlog",
1991 .lname = "Trim backlog",
1992 .type = FIO_OPT_STR_VAL,
1993 .off1 = td_var_offset(trim_backlog),
1994 .help = "Trim after this number of blocks are written",
1995 .parent = "trim_percentage",
1998 .category = FIO_OPT_C_IO,
1999 .group = FIO_OPT_G_TRIM,
2002 .name = "trim_backlog_batch",
2003 .lname = "Trim backlog batch",
2004 .type = FIO_OPT_INT,
2005 .off1 = td_var_offset(trim_batch),
2006 .help = "Trim this number of IO blocks",
2007 .parent = "trim_percentage",
2010 .category = FIO_OPT_C_IO,
2011 .group = FIO_OPT_G_TRIM,
2015 .name = "write_iolog",
2016 .lname = "Write I/O log",
2017 .type = FIO_OPT_STR_STORE,
2018 .off1 = td_var_offset(write_iolog_file),
2019 .help = "Store IO pattern to file",
2020 .category = FIO_OPT_C_IO,
2021 .group = FIO_OPT_G_IOLOG,
2024 .name = "read_iolog",
2025 .lname = "Read I/O log",
2026 .type = FIO_OPT_STR_STORE,
2027 .off1 = td_var_offset(read_iolog_file),
2028 .help = "Playback IO pattern from file",
2029 .category = FIO_OPT_C_IO,
2030 .group = FIO_OPT_G_IOLOG,
2033 .name = "replay_no_stall",
2034 .lname = "Don't stall on replay",
2035 .type = FIO_OPT_BOOL,
2036 .off1 = td_var_offset(no_stall),
2038 .parent = "read_iolog",
2040 .help = "Playback IO pattern file as fast as possible without stalls",
2041 .category = FIO_OPT_C_IO,
2042 .group = FIO_OPT_G_IOLOG,
2045 .name = "replay_redirect",
2046 .lname = "Redirect device for replay",
2047 .type = FIO_OPT_STR_STORE,
2048 .off1 = td_var_offset(replay_redirect),
2049 .parent = "read_iolog",
2051 .help = "Replay all I/O onto this device, regardless of trace device",
2052 .category = FIO_OPT_C_IO,
2053 .group = FIO_OPT_G_IOLOG,
2056 .name = "exec_prerun",
2057 .lname = "Pre-execute runnable",
2058 .type = FIO_OPT_STR_STORE,
2059 .off1 = td_var_offset(exec_prerun),
2060 .help = "Execute this file prior to running job",
2061 .category = FIO_OPT_C_GENERAL,
2062 .group = FIO_OPT_G_INVALID,
2065 .name = "exec_postrun",
2066 .lname = "Post-execute runnable",
2067 .type = FIO_OPT_STR_STORE,
2068 .off1 = td_var_offset(exec_postrun),
2069 .help = "Execute this file after running job",
2070 .category = FIO_OPT_C_GENERAL,
2071 .group = FIO_OPT_G_INVALID,
2073 #ifdef FIO_HAVE_IOSCHED_SWITCH
2075 .name = "ioscheduler",
2076 .lname = "I/O scheduler",
2077 .type = FIO_OPT_STR_STORE,
2078 .off1 = td_var_offset(ioscheduler),
2079 .help = "Use this IO scheduler on the backing device",
2080 .category = FIO_OPT_C_FILE,
2081 .group = FIO_OPT_G_INVALID,
2086 .lname = "Zone size",
2087 .type = FIO_OPT_STR_VAL,
2088 .off1 = td_var_offset(zone_size),
2089 .help = "Amount of data to read per zone",
2091 .interval = 1024 * 1024,
2092 .category = FIO_OPT_C_IO,
2093 .group = FIO_OPT_G_ZONE,
2096 .name = "zonerange",
2097 .lname = "Zone range",
2098 .type = FIO_OPT_STR_VAL,
2099 .off1 = td_var_offset(zone_range),
2100 .help = "Give size of an IO zone",
2102 .interval = 1024 * 1024,
2103 .category = FIO_OPT_C_IO,
2104 .group = FIO_OPT_G_ZONE,
2108 .lname = "Zone skip",
2109 .type = FIO_OPT_STR_VAL,
2110 .off1 = td_var_offset(zone_skip),
2111 .help = "Space between IO zones",
2113 .interval = 1024 * 1024,
2114 .category = FIO_OPT_C_IO,
2115 .group = FIO_OPT_G_ZONE,
2119 .lname = "Lock memory",
2120 .type = FIO_OPT_STR_VAL,
2121 .cb = str_lockmem_cb,
2122 .help = "Lock down this amount of memory",
2124 .interval = 1024 * 1024,
2125 .category = FIO_OPT_C_GENERAL,
2126 .group = FIO_OPT_G_INVALID,
2129 .name = "rwmixread",
2130 .lname = "Read/write mix read",
2131 .type = FIO_OPT_INT,
2132 .cb = str_rwmix_read_cb,
2134 .help = "Percentage of mixed workload that is reads",
2137 .inverse = "rwmixwrite",
2138 .category = FIO_OPT_C_IO,
2139 .group = FIO_OPT_G_RWMIX,
2142 .name = "rwmixwrite",
2143 .lname = "Read/write mix write",
2144 .type = FIO_OPT_INT,
2145 .cb = str_rwmix_write_cb,
2147 .help = "Percentage of mixed workload that is writes",
2150 .inverse = "rwmixread",
2151 .category = FIO_OPT_C_IO,
2152 .group = FIO_OPT_G_RWMIX,
2155 .name = "rwmixcycle",
2156 .lname = "Read/write mix cycle",
2157 .type = FIO_OPT_DEPRECATED,
2158 .category = FIO_OPT_C_IO,
2159 .group = FIO_OPT_G_RWMIX,
2164 .type = FIO_OPT_INT,
2165 .off1 = td_var_offset(nice),
2166 .help = "Set job CPU nice value",
2171 .category = FIO_OPT_C_GENERAL,
2172 .group = FIO_OPT_G_CRED,
2174 #ifdef FIO_HAVE_IOPRIO
2177 .lname = "I/O nice priority",
2178 .type = FIO_OPT_INT,
2180 .help = "Set job IO priority value",
2184 .category = FIO_OPT_C_GENERAL,
2185 .group = FIO_OPT_G_CRED,
2188 .name = "prioclass",
2189 .lname = "I/O nice priority class",
2190 .type = FIO_OPT_INT,
2191 .cb = str_prioclass_cb,
2192 .help = "Set job IO priority class",
2196 .category = FIO_OPT_C_GENERAL,
2197 .group = FIO_OPT_G_CRED,
2201 .name = "thinktime",
2202 .lname = "Thinktime",
2203 .type = FIO_OPT_INT,
2204 .off1 = td_var_offset(thinktime),
2205 .help = "Idle time between IO buffers (usec)",
2207 .category = FIO_OPT_C_IO,
2208 .group = FIO_OPT_G_INVALID,
2211 .name = "thinktime_spin",
2212 .lname = "Thinktime spin",
2213 .type = FIO_OPT_INT,
2214 .off1 = td_var_offset(thinktime_spin),
2215 .help = "Start think time by spinning this amount (usec)",
2217 .parent = "thinktime",
2219 .category = FIO_OPT_C_IO,
2220 .group = FIO_OPT_G_INVALID,
2223 .name = "thinktime_blocks",
2224 .lname = "Thinktime blocks",
2225 .type = FIO_OPT_INT,
2226 .off1 = td_var_offset(thinktime_blocks),
2227 .help = "IO buffer period between 'thinktime'",
2229 .parent = "thinktime",
2231 .category = FIO_OPT_C_IO,
2232 .group = FIO_OPT_G_INVALID,
2236 .lname = "I/O rate",
2237 .type = FIO_OPT_INT,
2238 .off1 = td_var_offset(rate[0]),
2239 .off2 = td_var_offset(rate[1]),
2240 .help = "Set bandwidth rate",
2241 .category = FIO_OPT_C_IO,
2242 .group = FIO_OPT_G_RATE,
2246 .lname = "I/O min rate",
2247 .type = FIO_OPT_INT,
2248 .off1 = td_var_offset(ratemin[0]),
2249 .off2 = td_var_offset(ratemin[1]),
2250 .help = "Job must meet this rate or it will be shutdown",
2253 .category = FIO_OPT_C_IO,
2254 .group = FIO_OPT_G_RATE,
2257 .name = "rate_iops",
2258 .lname = "I/O rate IOPS",
2259 .type = FIO_OPT_INT,
2260 .off1 = td_var_offset(rate_iops[0]),
2261 .off2 = td_var_offset(rate_iops[1]),
2262 .help = "Limit IO used to this number of IO operations/sec",
2264 .category = FIO_OPT_C_IO,
2265 .group = FIO_OPT_G_RATE,
2268 .name = "rate_iops_min",
2269 .lname = "I/O min rate IOPS",
2270 .type = FIO_OPT_INT,
2271 .off1 = td_var_offset(rate_iops_min[0]),
2272 .off2 = td_var_offset(rate_iops_min[1]),
2273 .help = "Job must meet this rate or it will be shut down",
2274 .parent = "rate_iops",
2276 .category = FIO_OPT_C_IO,
2277 .group = FIO_OPT_G_RATE,
2280 .name = "ratecycle",
2281 .lname = "I/O rate cycle",
2282 .type = FIO_OPT_INT,
2283 .off1 = td_var_offset(ratecycle),
2284 .help = "Window average for rate limits (msec)",
2288 .category = FIO_OPT_C_IO,
2289 .group = FIO_OPT_G_RATE,
2292 .name = "invalidate",
2293 .lname = "Cache invalidate",
2294 .type = FIO_OPT_BOOL,
2295 .off1 = td_var_offset(invalidate_cache),
2296 .help = "Invalidate buffer/page cache prior to running job",
2298 .category = FIO_OPT_C_IO,
2299 .group = FIO_OPT_G_INVALID,
2303 .lname = "Synchronous I/O",
2304 .type = FIO_OPT_BOOL,
2305 .off1 = td_var_offset(sync_io),
2306 .help = "Use O_SYNC for buffered writes",
2308 .parent = "buffered",
2310 .category = FIO_OPT_C_IO,
2311 .group = FIO_OPT_G_INVALID,
2314 .name = "bwavgtime",
2315 .lname = "Bandwidth average time",
2316 .type = FIO_OPT_INT,
2317 .off1 = td_var_offset(bw_avg_time),
2318 .help = "Time window over which to calculate bandwidth"
2321 .parent = "write_bw_log",
2324 .category = FIO_OPT_C_LOG,
2325 .group = FIO_OPT_G_INVALID,
2328 .name = "iopsavgtime",
2329 .lname = "IOPS average time",
2330 .type = FIO_OPT_INT,
2331 .off1 = td_var_offset(iops_avg_time),
2332 .help = "Time window over which to calculate IOPS (msec)",
2334 .parent = "write_iops_log",
2337 .category = FIO_OPT_C_LOG,
2338 .group = FIO_OPT_G_INVALID,
2341 .name = "create_serialize",
2342 .lname = "Create serialize",
2343 .type = FIO_OPT_BOOL,
2344 .off1 = td_var_offset(create_serialize),
2345 .help = "Serialize creating of job files",
2347 .category = FIO_OPT_C_FILE,
2348 .group = FIO_OPT_G_INVALID,
2351 .name = "create_fsync",
2352 .lname = "Create fsync",
2353 .type = FIO_OPT_BOOL,
2354 .off1 = td_var_offset(create_fsync),
2355 .help = "fsync file after creation",
2357 .category = FIO_OPT_C_FILE,
2358 .group = FIO_OPT_G_INVALID,
2361 .name = "create_on_open",
2362 .lname = "Create on open",
2363 .type = FIO_OPT_BOOL,
2364 .off1 = td_var_offset(create_on_open),
2365 .help = "Create files when they are opened for IO",
2367 .category = FIO_OPT_C_FILE,
2368 .group = FIO_OPT_G_INVALID,
2372 .lname = "Pre-read files",
2373 .type = FIO_OPT_BOOL,
2374 .off1 = td_var_offset(pre_read),
2375 .help = "Pre-read files before starting official testing",
2377 .category = FIO_OPT_C_FILE,
2378 .group = FIO_OPT_G_INVALID,
2382 .lname = "CPU load",
2383 .type = FIO_OPT_INT,
2384 .off1 = td_var_offset(cpuload),
2385 .help = "Use this percentage of CPU",
2386 .category = FIO_OPT_C_GENERAL,
2387 .group = FIO_OPT_G_INVALID,
2390 .name = "cpuchunks",
2391 .lname = "CPU chunk",
2392 .type = FIO_OPT_INT,
2393 .off1 = td_var_offset(cpucycle),
2394 .help = "Length of the CPU burn cycles (usecs)",
2396 .parent = "cpuload",
2398 .category = FIO_OPT_C_GENERAL,
2399 .group = FIO_OPT_G_INVALID,
2401 #ifdef FIO_HAVE_CPU_AFFINITY
2404 .lname = "CPU mask",
2405 .type = FIO_OPT_INT,
2406 .cb = str_cpumask_cb,
2407 .help = "CPU affinity mask",
2408 .category = FIO_OPT_C_GENERAL,
2409 .group = FIO_OPT_G_CRED,
2412 .name = "cpus_allowed",
2413 .lname = "CPUs allowed",
2414 .type = FIO_OPT_STR,
2415 .cb = str_cpus_allowed_cb,
2416 .help = "Set CPUs allowed",
2417 .category = FIO_OPT_C_GENERAL,
2418 .group = FIO_OPT_G_CRED,
2422 .name = "end_fsync",
2423 .lname = "End fsync",
2424 .type = FIO_OPT_BOOL,
2425 .off1 = td_var_offset(end_fsync),
2426 .help = "Include fsync at the end of job",
2428 .category = FIO_OPT_C_FILE,
2429 .group = FIO_OPT_G_INVALID,
2432 .name = "fsync_on_close",
2433 .lname = "Fsync on close",
2434 .type = FIO_OPT_BOOL,
2435 .off1 = td_var_offset(fsync_on_close),
2436 .help = "fsync files on close",
2438 .category = FIO_OPT_C_FILE,
2439 .group = FIO_OPT_G_INVALID,
2443 .lname = "Unlink file",
2444 .type = FIO_OPT_BOOL,
2445 .off1 = td_var_offset(unlink),
2446 .help = "Unlink created files after job has completed",
2448 .category = FIO_OPT_C_FILE,
2449 .group = FIO_OPT_G_INVALID,
2453 .lname = "Exit-all on terminate",
2454 .type = FIO_OPT_STR_SET,
2455 .cb = str_exitall_cb,
2456 .help = "Terminate all jobs when one exits",
2457 .category = FIO_OPT_C_GENERAL,
2458 .group = FIO_OPT_G_PROCESS,
2461 .name = "stonewall",
2462 .lname = "Wait for previous",
2463 .alias = "wait_for_previous",
2464 .type = FIO_OPT_STR_SET,
2465 .off1 = td_var_offset(stonewall),
2466 .help = "Insert a hard barrier between this job and previous",
2467 .category = FIO_OPT_C_GENERAL,
2468 .group = FIO_OPT_G_PROCESS,
2471 .name = "new_group",
2472 .lname = "New group",
2473 .type = FIO_OPT_STR_SET,
2474 .off1 = td_var_offset(new_group),
2475 .help = "Mark the start of a new group (for reporting)",
2476 .category = FIO_OPT_C_GENERAL,
2477 .group = FIO_OPT_G_PROCESS,
2482 .type = FIO_OPT_STR_SET,
2483 .off1 = td_var_offset(use_thread),
2484 .help = "Use threads instead of processes",
2485 .category = FIO_OPT_C_GENERAL,
2486 .group = FIO_OPT_G_PROCESS,
2489 .name = "write_bw_log",
2490 .lname = "Write bandwidth log",
2491 .type = FIO_OPT_STR,
2492 .off1 = td_var_offset(write_bw_log),
2493 .cb = str_write_bw_log_cb,
2494 .help = "Write log of bandwidth during run",
2495 .category = FIO_OPT_C_LOG,
2496 .group = FIO_OPT_G_INVALID,
2499 .name = "write_lat_log",
2500 .lname = "Write latency log",
2501 .type = FIO_OPT_STR,
2502 .off1 = td_var_offset(write_lat_log),
2503 .cb = str_write_lat_log_cb,
2504 .help = "Write log of latency during run",
2505 .category = FIO_OPT_C_LOG,
2506 .group = FIO_OPT_G_INVALID,
2509 .name = "write_iops_log",
2510 .lname = "Write IOPS log",
2511 .type = FIO_OPT_STR,
2512 .off1 = td_var_offset(write_iops_log),
2513 .cb = str_write_iops_log_cb,
2514 .help = "Write log of IOPS during run",
2515 .category = FIO_OPT_C_LOG,
2516 .group = FIO_OPT_G_INVALID,
2519 .name = "log_avg_msec",
2520 .lname = "Log averaging (msec)",
2521 .type = FIO_OPT_INT,
2522 .off1 = td_var_offset(log_avg_msec),
2523 .help = "Average bw/iops/lat logs over this period of time",
2525 .category = FIO_OPT_C_LOG,
2526 .group = FIO_OPT_G_INVALID,
2529 .name = "hugepage-size",
2530 .lname = "Hugepage size",
2531 .type = FIO_OPT_INT,
2532 .off1 = td_var_offset(hugepage_size),
2533 .help = "When using hugepages, specify size of each page",
2534 .def = __fio_stringify(FIO_HUGE_PAGE),
2535 .interval = 1024 * 1024,
2536 .category = FIO_OPT_C_GENERAL,
2537 .group = FIO_OPT_G_INVALID,
2540 .name = "group_reporting",
2541 .lname = "Group reporting",
2542 .type = FIO_OPT_BOOL,
2543 .off1 = td_var_offset(group_reporting),
2544 .help = "Do reporting on a per-group basis",
2546 .category = FIO_OPT_C_STAT,
2547 .group = FIO_OPT_G_INVALID,
2550 .name = "zero_buffers",
2551 .lname = "Zero I/O buffers",
2552 .type = FIO_OPT_STR_SET,
2553 .off1 = td_var_offset(zero_buffers),
2554 .help = "Init IO buffers to all zeroes",
2555 .category = FIO_OPT_C_IO,
2556 .group = FIO_OPT_G_INVALID,
2559 .name = "refill_buffers",
2560 .lname = "Refill I/O buffers",
2561 .type = FIO_OPT_STR_SET,
2562 .off1 = td_var_offset(refill_buffers),
2563 .help = "Refill IO buffers on every IO submit",
2564 .category = FIO_OPT_C_IO,
2565 .group = FIO_OPT_G_INVALID,
2568 .name = "scramble_buffers",
2569 .lname = "Scramble I/O buffers",
2570 .type = FIO_OPT_BOOL,
2571 .off1 = td_var_offset(scramble_buffers),
2572 .help = "Slightly scramble buffers on every IO submit",
2574 .category = FIO_OPT_C_IO,
2575 .group = FIO_OPT_G_INVALID,
2578 .name = "buffer_compress_percentage",
2579 .lname = "Buffer compression percentage",
2580 .type = FIO_OPT_INT,
2581 .off1 = td_var_offset(compress_percentage),
2584 .help = "How compressible the buffer is (approximately)",
2586 .category = FIO_OPT_C_IO,
2587 .group = FIO_OPT_G_INVALID,
2590 .name = "buffer_compress_chunk",
2591 .lname = "Buffer compression chunk size",
2592 .type = FIO_OPT_INT,
2593 .off1 = td_var_offset(compress_chunk),
2594 .parent = "buffer_compress_percentage",
2596 .help = "Size of compressible region in buffer",
2598 .category = FIO_OPT_C_IO,
2599 .group = FIO_OPT_G_INVALID,
2602 .name = "clat_percentiles",
2603 .lname = "Completion latency percentiles",
2604 .type = FIO_OPT_BOOL,
2605 .off1 = td_var_offset(clat_percentiles),
2606 .help = "Enable the reporting of completion latency percentiles",
2608 .category = FIO_OPT_C_STAT,
2609 .group = FIO_OPT_G_INVALID,
2612 .name = "percentile_list",
2613 .lname = "Completion latency percentile list",
2614 .type = FIO_OPT_FLOAT_LIST,
2615 .off1 = td_var_offset(percentile_list),
2616 .off2 = td_var_offset(overwrite_plist),
2617 .help = "Specify a custom list of percentiles to report",
2618 .maxlen = FIO_IO_U_LIST_MAX_LEN,
2621 .category = FIO_OPT_C_STAT,
2622 .group = FIO_OPT_G_INVALID,
2625 #ifdef FIO_HAVE_DISK_UTIL
2627 .name = "disk_util",
2628 .lname = "Disk utilization",
2629 .type = FIO_OPT_BOOL,
2630 .off1 = td_var_offset(do_disk_util),
2631 .help = "Log disk utilization statistics",
2633 .category = FIO_OPT_C_STAT,
2634 .group = FIO_OPT_G_INVALID,
2638 .name = "gtod_reduce",
2639 .lname = "Reduce gettimeofday() calls",
2640 .type = FIO_OPT_BOOL,
2641 .help = "Greatly reduce number of gettimeofday() calls",
2642 .cb = str_gtod_reduce_cb,
2644 .category = FIO_OPT_C_STAT,
2645 .group = FIO_OPT_G_INVALID,
2648 .name = "disable_lat",
2649 .lname = "Disable all latency stats",
2650 .type = FIO_OPT_BOOL,
2651 .off1 = td_var_offset(disable_lat),
2652 .help = "Disable latency numbers",
2653 .parent = "gtod_reduce",
2656 .category = FIO_OPT_C_STAT,
2657 .group = FIO_OPT_G_INVALID,
2660 .name = "disable_clat",
2661 .lname = "Disable completion latency stats",
2662 .type = FIO_OPT_BOOL,
2663 .off1 = td_var_offset(disable_clat),
2664 .help = "Disable completion latency numbers",
2665 .parent = "gtod_reduce",
2668 .category = FIO_OPT_C_STAT,
2669 .group = FIO_OPT_G_INVALID,
2672 .name = "disable_slat",
2673 .lname = "Disable submission latency stats",
2674 .type = FIO_OPT_BOOL,
2675 .off1 = td_var_offset(disable_slat),
2676 .help = "Disable submission latency numbers",
2677 .parent = "gtod_reduce",
2680 .category = FIO_OPT_C_STAT,
2681 .group = FIO_OPT_G_INVALID,
2684 .name = "disable_bw_measurement",
2685 .lname = "Disable bandwidth stats",
2686 .type = FIO_OPT_BOOL,
2687 .off1 = td_var_offset(disable_bw),
2688 .help = "Disable bandwidth logging",
2689 .parent = "gtod_reduce",
2692 .category = FIO_OPT_C_STAT,
2693 .group = FIO_OPT_G_INVALID,
2697 .lname = "Dedicated gettimeofday() CPU",
2698 .type = FIO_OPT_INT,
2699 .cb = str_gtod_cpu_cb,
2700 .help = "Set up dedicated gettimeofday() thread on this CPU",
2701 .verify = gtod_cpu_verify,
2702 .category = FIO_OPT_C_GENERAL,
2703 .group = FIO_OPT_G_CLOCK,
2706 .name = "continue_on_error",
2707 .lname = "Continue on error",
2708 .type = FIO_OPT_STR,
2709 .off1 = td_var_offset(continue_on_error),
2710 .help = "Continue on non-fatal errors during IO",
2712 .category = FIO_OPT_C_GENERAL,
2713 .group = FIO_OPT_G_INVALID,
2716 .oval = ERROR_TYPE_NONE,
2717 .help = "Exit when an error is encountered",
2720 .oval = ERROR_TYPE_READ,
2721 .help = "Continue on read errors only",
2724 .oval = ERROR_TYPE_WRITE,
2725 .help = "Continue on write errors only",
2728 .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
2729 .help = "Continue on any IO errors",
2732 .oval = ERROR_TYPE_VERIFY,
2733 .help = "Continue on verify errors only",
2736 .oval = ERROR_TYPE_ANY,
2737 .help = "Continue on all io and verify errors",
2740 .oval = ERROR_TYPE_NONE,
2741 .help = "Alias for 'none'",
2744 .oval = ERROR_TYPE_ANY,
2745 .help = "Alias for 'all'",
2752 .type = FIO_OPT_STR_STORE,
2753 .off1 = td_var_offset(profile),
2754 .help = "Select a specific builtin performance test",
2755 .category = FIO_OPT_C_GENERAL,
2756 .group = FIO_OPT_G_INVALID,
2761 .type = FIO_OPT_STR_STORE,
2762 .off1 = td_var_offset(cgroup),
2763 .help = "Add job to cgroup of this name",
2764 .category = FIO_OPT_C_GENERAL,
2765 .group = FIO_OPT_G_CGROUP,
2768 .name = "cgroup_nodelete",
2769 .lname = "Cgroup no-delete",
2770 .type = FIO_OPT_BOOL,
2771 .off1 = td_var_offset(cgroup_nodelete),
2772 .help = "Do not delete cgroups after job completion",
2775 .category = FIO_OPT_C_GENERAL,
2776 .group = FIO_OPT_G_CGROUP,
2779 .name = "cgroup_weight",
2780 .lname = "Cgroup weight",
2781 .type = FIO_OPT_INT,
2782 .off1 = td_var_offset(cgroup_weight),
2783 .help = "Use given weight for cgroup",
2787 .category = FIO_OPT_C_GENERAL,
2788 .group = FIO_OPT_G_CGROUP,
2793 .type = FIO_OPT_INT,
2794 .off1 = td_var_offset(uid),
2795 .help = "Run job with this user ID",
2796 .category = FIO_OPT_C_GENERAL,
2797 .group = FIO_OPT_G_CRED,
2801 .lname = "Group ID",
2802 .type = FIO_OPT_INT,
2803 .off1 = td_var_offset(gid),
2804 .help = "Run job with this group ID",
2805 .category = FIO_OPT_C_GENERAL,
2806 .group = FIO_OPT_G_CRED,
2811 .type = FIO_OPT_INT,
2812 .off1 = td_var_offset(kb_base),
2813 .verify = kb_base_verify,
2816 .help = "How many bytes per KB for reporting (1000 or 1024)",
2817 .category = FIO_OPT_C_GENERAL,
2818 .group = FIO_OPT_G_INVALID,
2822 .lname = "I/O flow ID",
2823 .type = FIO_OPT_INT,
2824 .off1 = td_var_offset(flow_id),
2825 .help = "The flow index ID to use",
2827 .category = FIO_OPT_C_IO,
2828 .group = FIO_OPT_G_IO_FLOW,
2832 .lname = "I/O flow weight",
2833 .type = FIO_OPT_INT,
2834 .off1 = td_var_offset(flow),
2835 .help = "Weight for flow control of this job",
2836 .parent = "flow_id",
2839 .category = FIO_OPT_C_IO,
2840 .group = FIO_OPT_G_IO_FLOW,
2843 .name = "flow_watermark",
2844 .lname = "I/O flow watermark",
2845 .type = FIO_OPT_INT,
2846 .off1 = td_var_offset(flow_watermark),
2847 .help = "High watermark for flow control. This option"
2848 " should be set to the same value for all threads"
2849 " with non-zero flow.",
2850 .parent = "flow_id",
2853 .category = FIO_OPT_C_IO,
2854 .group = FIO_OPT_G_IO_FLOW,
2857 .name = "flow_sleep",
2858 .lname = "I/O flow sleep",
2859 .type = FIO_OPT_INT,
2860 .off1 = td_var_offset(flow_sleep),
2861 .help = "How many microseconds to sleep after being held"
2862 " back by the flow control mechanism",
2863 .parent = "flow_id",
2866 .category = FIO_OPT_C_IO,
2867 .group = FIO_OPT_G_IO_FLOW,
2874 static void add_to_lopt(struct option *lopt, struct fio_option *o,
2875 const char *name, int val)
2877 lopt->name = (char *) name;
2879 if (o->type == FIO_OPT_STR_SET)
2880 lopt->has_arg = no_argument;
2882 lopt->has_arg = required_argument;
2885 static void options_to_lopts(struct fio_option *opts,
2886 struct option *long_options,
2887 int i, int option_type)
2889 struct fio_option *o = &opts[0];
2891 add_to_lopt(&long_options[i], o, o->name, option_type);
2894 add_to_lopt(&long_options[i], o, o->alias, option_type);
2899 assert(i < FIO_NR_OPTIONS);
2903 void fio_options_set_ioengine_opts(struct option *long_options,
2904 struct thread_data *td)
2909 while (long_options[i].name) {
2910 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
2911 memset(&long_options[i], 0, sizeof(*long_options));
2918 * Just clear out the prior ioengine options.
2923 options_to_lopts(td->io_ops->options, long_options, i,
2924 FIO_GETOPT_IOENGINE);
2927 void fio_options_dup_and_init(struct option *long_options)
2931 options_init(fio_options);
2934 while (long_options[i].name)
2937 options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
2940 struct fio_keyword {
2946 static struct fio_keyword fio_keywords[] = {
2948 .word = "$pagesize",
2949 .desc = "Page size in the system",
2952 .word = "$mb_memory",
2953 .desc = "Megabytes of memory online",
2957 .desc = "Number of CPUs online in the system",
2964 void fio_keywords_init(void)
2966 unsigned long long mb_memory;
2970 sprintf(buf, "%lu", page_size);
2971 fio_keywords[0].replace = strdup(buf);
2973 mb_memory = os_phys_mem() / (1024 * 1024);
2974 sprintf(buf, "%llu", mb_memory);
2975 fio_keywords[1].replace = strdup(buf);
2978 sprintf(buf, "%lu", l);
2979 fio_keywords[2].replace = strdup(buf);
2984 static char *bc_calc(char *str)
2986 char buf[128], *tmp;
2991 * No math, just return string
2993 if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
2994 !strchr(str, '/')) || strchr(str, '\''))
2998 * Split option from value, we only need to calculate the value
3000 tmp = strchr(str, '=');
3007 * Prevent buffer overflows; such a case isn't reasonable anyway
3009 if (strlen(str) >= 128 || strlen(tmp) > 100)
3012 sprintf(buf, "which %s > /dev/null", BC_APP);
3014 log_err("fio: bc is needed for performing math\n");
3018 sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
3019 f = popen(buf, "r");
3024 ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
3030 buf[(tmp - str) + ret - 1] = '\0';
3031 memcpy(buf, str, tmp - str);
3037 * Return a copy of the input string with substrings of the form ${VARNAME}
3038 * substituted with the value of the environment variable VARNAME. The
3039 * substitution always occurs, even if VARNAME is empty or the corresponding
3040 * environment variable undefined.
3042 static char *option_dup_subs(const char *opt)
3044 char out[OPT_LEN_MAX+1];
3045 char in[OPT_LEN_MAX+1];
3048 char *ch1, *ch2, *env;
3049 ssize_t nchr = OPT_LEN_MAX;
3052 if (strlen(opt) + 1 > OPT_LEN_MAX) {
3053 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
3057 in[OPT_LEN_MAX] = '\0';
3058 strncpy(in, opt, OPT_LEN_MAX);
3060 while (*inptr && nchr > 0) {
3061 if (inptr[0] == '$' && inptr[1] == '{') {
3062 ch2 = strchr(inptr, '}');
3063 if (ch2 && inptr+1 < ch2) {
3070 envlen = strlen(env);
3071 if (envlen <= nchr) {
3072 memcpy(outptr, env, envlen);
3082 *outptr++ = *inptr++;
3091 * Look for reserved variable names and replace them with real values
3093 static char *fio_keyword_replace(char *opt)
3099 for (i = 0; fio_keywords[i].word != NULL; i++) {
3100 struct fio_keyword *kw = &fio_keywords[i];
3102 while ((s = strstr(opt, kw->word)) != NULL) {
3103 char *new = malloc(strlen(opt) + 1);
3109 * Copy part of the string before the keyword and
3110 * sprintf() the replacement after it.
3112 memcpy(new, opt, olen);
3113 len = sprintf(new + olen, "%s", kw->replace);
3116 * If there's more in the original string, copy that
3119 opt += strlen(kw->word) + olen;
3121 memcpy(new + olen + len, opt, opt - o_org - 1);
3124 * replace opt and free the old opt
3134 * Check for potential math and invoke bc, if possible
3142 static char **dup_and_sub_options(char **opts, int num_opts)
3145 char **opts_copy = malloc(num_opts * sizeof(*opts));
3146 for (i = 0; i < num_opts; i++) {
3147 opts_copy[i] = option_dup_subs(opts[i]);
3150 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
3155 int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
3157 int i, ret, unknown;
3160 sort_options(opts, fio_options, num_opts);
3161 opts_copy = dup_and_sub_options(opts, num_opts);
3163 for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
3164 struct fio_option *o;
3165 int newret = parse_option(opts_copy[i], opts[i], fio_options,
3174 opts_copy[i] = NULL;
3181 ret |= ioengine_load(td);
3183 sort_options(opts_copy, td->io_ops->options, num_opts);
3186 for (i = 0; i < num_opts; i++) {
3187 struct fio_option *o = NULL;
3193 newret = parse_option(opts_copy[i], opts[i],
3194 td->io_ops->options, &o,
3199 log_err("Bad option <%s>\n", opts[i]);
3202 opts_copy[i] = NULL;
3210 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
3212 return parse_cmd_option(opt, val, fio_options, td);
3215 int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
3218 return parse_cmd_option(opt, val, td->io_ops->options, td);
3221 void fio_fill_default_options(struct thread_data *td)
3223 fill_default_options(td, fio_options);
3226 int fio_show_option_help(const char *opt)
3228 return show_cmd_help(fio_options, opt);
3231 void options_mem_dupe(void *data, struct fio_option *options)
3233 struct fio_option *o;
3236 for (o = &options[0]; o->name; o++) {
3237 if (o->type != FIO_OPT_STR_STORE)
3240 ptr = td_var(data, o->off1);
3242 *ptr = strdup(*ptr);
3247 * dupe FIO_OPT_STR_STORE options
3249 void fio_options_mem_dupe(struct thread_data *td)
3251 options_mem_dupe(&td->o, fio_options);
3253 if (td->eo && td->io_ops) {
3254 void *oldeo = td->eo;
3256 td->eo = malloc(td->io_ops->option_struct_size);
3257 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
3258 options_mem_dupe(td->eo, td->io_ops->options);
3262 unsigned int fio_get_kb_base(void *data)
3264 struct thread_data *td = data;
3265 unsigned int kb_base = 0;
3268 kb_base = td->o.kb_base;
3275 int add_option(struct fio_option *o)
3277 struct fio_option *__o;
3286 memcpy(&fio_options[opt_index], o, sizeof(*o));
3290 void invalidate_profile_options(const char *prof_name)
3292 struct fio_option *o;
3296 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
3297 o->type = FIO_OPT_INVALID;
3298 o->prof_name = NULL;
3304 void add_opt_posval(const char *optname, const char *ival, const char *help)
3306 struct fio_option *o;
3309 o = find_option(fio_options, optname);
3313 for (i = 0; i < PARSE_MAX_VP; i++) {
3314 if (o->posval[i].ival)
3317 o->posval[i].ival = ival;
3318 o->posval[i].help = help;
3323 void del_opt_posval(const char *optname, const char *ival)
3325 struct fio_option *o;
3328 o = find_option(fio_options, optname);
3332 for (i = 0; i < PARSE_MAX_VP; i++) {
3333 if (!o->posval[i].ival)
3335 if (strcmp(o->posval[i].ival, ival))
3338 o->posval[i].ival = NULL;
3339 o->posval[i].help = NULL;
3343 void fio_options_free(struct thread_data *td)
3345 options_free(fio_options, td);
3346 if (td->eo && td->io_ops && td->io_ops->options) {
3347 options_free(td->io_ops->options, td->eo);