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,
967 .mask = FIO_OPT_G_IO_TYPE,
970 .name = "I/O Thinktime",
971 .mask = FIO_OPT_G_THINKTIME,
974 .name = "Randomizations",
975 .mask = FIO_OPT_G_RANDOM,
978 .name = "I/O buffers",
979 .mask = FIO_OPT_G_IO_BUF,
986 struct opt_group *opt_group_cat_from_mask(unsigned int *mask)
988 return __opt_group_from_mask(fio_opt_cat_groups, mask, FIO_OPT_G_INVALID);
992 * Map of job/command line options
994 struct fio_option fio_options[FIO_MAX_OPTS] = {
996 .name = "description",
997 .lname = "Description of job",
998 .type = FIO_OPT_STR_STORE,
999 .off1 = td_var_offset(description),
1000 .help = "Text job description",
1001 .category = FIO_OPT_C_GENERAL,
1002 .group = FIO_OPT_G_DESC,
1006 .lname = "Job name",
1007 .type = FIO_OPT_STR_STORE,
1008 .off1 = td_var_offset(name),
1009 .help = "Name of this job",
1010 .category = FIO_OPT_C_GENERAL,
1011 .group = FIO_OPT_G_DESC,
1015 .lname = "Filename(s)",
1016 .type = FIO_OPT_STR_STORE,
1017 .off1 = td_var_offset(filename),
1018 .cb = str_filename_cb,
1019 .prio = -1, /* must come after "directory" */
1020 .help = "File(s) to use for the workload",
1021 .category = FIO_OPT_C_FILE,
1022 .group = FIO_OPT_G_FILENAME,
1025 .name = "directory",
1026 .lname = "Directory",
1027 .type = FIO_OPT_STR_STORE,
1028 .off1 = td_var_offset(directory),
1029 .cb = str_directory_cb,
1030 .help = "Directory to store files in",
1031 .category = FIO_OPT_C_FILE,
1032 .group = FIO_OPT_G_FILENAME,
1036 .lname = "Lockfile",
1037 .type = FIO_OPT_STR,
1038 .cb = str_lockfile_cb,
1039 .off1 = td_var_offset(file_lock_mode),
1040 .help = "Lock file when doing IO to it",
1041 .parent = "filename",
1044 .category = FIO_OPT_C_FILE,
1045 .group = FIO_OPT_G_FILENAME,
1048 .oval = FILE_LOCK_NONE,
1049 .help = "No file locking",
1051 { .ival = "exclusive",
1052 .oval = FILE_LOCK_EXCLUSIVE,
1053 .help = "Exclusive file lock",
1056 .ival = "readwrite",
1057 .oval = FILE_LOCK_READWRITE,
1058 .help = "Read vs write lock",
1064 .lname = "Open directory",
1065 .type = FIO_OPT_STR_STORE,
1066 .off1 = td_var_offset(opendir),
1067 .cb = str_opendir_cb,
1068 .help = "Recursively add files from this directory and down",
1069 .category = FIO_OPT_C_FILE,
1070 .group = FIO_OPT_G_FILENAME,
1074 .lname = "Read/write",
1075 .alias = "readwrite",
1076 .type = FIO_OPT_STR,
1078 .off1 = td_var_offset(td_ddir),
1079 .help = "IO direction",
1081 .verify = rw_verify,
1082 .category = FIO_OPT_C_IO,
1083 .group = FIO_OPT_G_IO_BASIC,
1086 .oval = TD_DDIR_READ,
1087 .help = "Sequential read",
1090 .oval = TD_DDIR_WRITE,
1091 .help = "Sequential write",
1093 { .ival = "randread",
1094 .oval = TD_DDIR_RANDREAD,
1095 .help = "Random read",
1097 { .ival = "randwrite",
1098 .oval = TD_DDIR_RANDWRITE,
1099 .help = "Random write",
1103 .help = "Sequential read and write mix",
1106 .oval = TD_DDIR_RANDRW,
1107 .help = "Random read and write mix"
1112 .name = "rw_sequencer",
1113 .lname = "RW Sequencer",
1114 .type = FIO_OPT_STR,
1115 .off1 = td_var_offset(rw_seq),
1116 .help = "IO offset generator modifier",
1117 .def = "sequential",
1118 .category = FIO_OPT_C_IO,
1119 .group = FIO_OPT_G_IO_BASIC,
1121 { .ival = "sequential",
1123 .help = "Generate sequential offsets",
1125 { .ival = "identical",
1126 .oval = RW_SEQ_IDENT,
1127 .help = "Generate identical offsets",
1134 .lname = "IO Engine",
1135 .type = FIO_OPT_STR_STORE,
1136 .off1 = td_var_offset(ioengine),
1137 .help = "IO engine to use",
1138 .def = FIO_PREFERRED_ENGINE,
1139 .category = FIO_OPT_C_IO,
1140 .group = FIO_OPT_G_IO_BASIC,
1143 .help = "Use read/write",
1146 .help = "Use pread/pwrite",
1149 .help = "Use readv/writev",
1151 #ifdef FIO_HAVE_LIBAIO
1153 .help = "Linux native asynchronous IO",
1156 #ifdef FIO_HAVE_POSIXAIO
1157 { .ival = "posixaio",
1158 .help = "POSIX asynchronous IO",
1161 #ifdef FIO_HAVE_SOLARISAIO
1162 { .ival = "solarisaio",
1163 .help = "Solaris native asynchronous IO",
1166 #ifdef FIO_HAVE_WINDOWSAIO
1167 { .ival = "windowsaio",
1168 .help = "Windows native asynchronous IO"
1172 .help = "Memory mapped IO"
1174 #ifdef FIO_HAVE_SPLICE
1176 .help = "splice/vmsplice based IO",
1178 { .ival = "netsplice",
1179 .help = "splice/vmsplice to/from the network",
1182 #ifdef FIO_HAVE_SGIO
1184 .help = "SCSI generic v3 IO",
1188 .help = "Testing engine (no data transfer)",
1191 .help = "Network IO",
1193 #ifdef FIO_HAVE_SYSLET
1194 { .ival = "syslet-rw",
1195 .help = "syslet enabled async pread/pwrite IO",
1199 .help = "CPU cycle burner engine",
1201 #ifdef FIO_HAVE_GUASI
1203 .help = "GUASI IO engine",
1206 #ifdef FIO_HAVE_BINJECT
1207 { .ival = "binject",
1208 .help = "binject direct inject block engine",
1211 #ifdef FIO_HAVE_RDMA
1213 .help = "RDMA IO engine",
1216 { .ival = "external",
1217 .help = "Load external engine (append name)",
1223 .lname = "IO Depth",
1224 .type = FIO_OPT_INT,
1225 .off1 = td_var_offset(iodepth),
1226 .help = "Number of IO buffers to keep in flight",
1230 .category = FIO_OPT_C_IO,
1231 .group = FIO_OPT_G_IO_BASIC,
1234 .name = "iodepth_batch",
1235 .lname = "IO Depth batch",
1236 .alias = "iodepth_batch_submit",
1237 .type = FIO_OPT_INT,
1238 .off1 = td_var_offset(iodepth_batch),
1239 .help = "Number of IO buffers to submit in one go",
1240 .parent = "iodepth",
1245 .category = FIO_OPT_C_IO,
1246 .group = FIO_OPT_G_IO_BASIC,
1249 .name = "iodepth_batch_complete",
1250 .lname = "IO Depth batch complete",
1251 .type = FIO_OPT_INT,
1252 .off1 = td_var_offset(iodepth_batch_complete),
1253 .help = "Number of IO buffers to retrieve in one go",
1254 .parent = "iodepth",
1259 .category = FIO_OPT_C_IO,
1260 .group = FIO_OPT_G_IO_BASIC,
1263 .name = "iodepth_low",
1264 .lname = "IO Depth batch low",
1265 .type = FIO_OPT_INT,
1266 .off1 = td_var_offset(iodepth_low),
1267 .help = "Low water mark for queuing depth",
1268 .parent = "iodepth",
1271 .category = FIO_OPT_C_IO,
1272 .group = FIO_OPT_G_IO_BASIC,
1277 .type = FIO_OPT_STR_VAL,
1279 .help = "Total size of device or files",
1280 .interval = 1024 * 1024,
1281 .category = FIO_OPT_C_IO,
1282 .group = FIO_OPT_G_INVALID,
1285 .name = "fill_device",
1286 .lname = "Fill device",
1288 .type = FIO_OPT_BOOL,
1289 .off1 = td_var_offset(fill_device),
1290 .help = "Write until an ENOSPC error occurs",
1292 .category = FIO_OPT_C_FILE,
1293 .group = FIO_OPT_G_INVALID,
1297 .lname = "File size",
1298 .type = FIO_OPT_STR_VAL,
1299 .off1 = td_var_offset(file_size_low),
1300 .off2 = td_var_offset(file_size_high),
1302 .help = "Size of individual files",
1303 .interval = 1024 * 1024,
1304 .category = FIO_OPT_C_FILE,
1305 .group = FIO_OPT_G_INVALID,
1309 .lname = "IO offset",
1310 .alias = "fileoffset",
1311 .type = FIO_OPT_STR_VAL,
1312 .off1 = td_var_offset(start_offset),
1313 .help = "Start IO from this offset",
1315 .interval = 1024 * 1024,
1316 .category = FIO_OPT_C_IO,
1317 .group = FIO_OPT_G_INVALID,
1320 .name = "offset_increment",
1321 .lname = "IO offset increment",
1322 .type = FIO_OPT_STR_VAL,
1323 .off1 = td_var_offset(offset_increment),
1324 .help = "What is the increment from one offset to the next",
1328 .interval = 1024 * 1024,
1329 .category = FIO_OPT_C_IO,
1330 .group = FIO_OPT_G_INVALID,
1334 .lname = "Block size",
1335 .alias = "blocksize",
1336 .type = FIO_OPT_INT,
1337 .off1 = td_var_offset(bs[DDIR_READ]),
1338 .off2 = td_var_offset(bs[DDIR_WRITE]),
1340 .help = "Block size unit",
1345 .category = FIO_OPT_C_IO,
1346 .group = FIO_OPT_G_INVALID,
1350 .lname = "Block size align",
1351 .alias = "blockalign",
1352 .type = FIO_OPT_INT,
1353 .off1 = td_var_offset(ba[DDIR_READ]),
1354 .off2 = td_var_offset(ba[DDIR_WRITE]),
1356 .help = "IO block offset alignment",
1360 .category = FIO_OPT_C_IO,
1361 .group = FIO_OPT_G_INVALID,
1365 .lname = "Block size range",
1366 .alias = "blocksize_range",
1367 .type = FIO_OPT_RANGE,
1368 .off1 = td_var_offset(min_bs[DDIR_READ]),
1369 .off2 = td_var_offset(max_bs[DDIR_READ]),
1370 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
1371 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
1373 .help = "Set block size range (in more detail than bs)",
1377 .category = FIO_OPT_C_IO,
1378 .group = FIO_OPT_G_INVALID,
1382 .lname = "Block size split",
1383 .type = FIO_OPT_STR,
1384 .cb = str_bssplit_cb,
1385 .help = "Set a specific mix of block sizes",
1388 .category = FIO_OPT_C_IO,
1389 .group = FIO_OPT_G_INVALID,
1392 .name = "bs_unaligned",
1393 .lname = "Block size unaligned",
1394 .alias = "blocksize_unaligned",
1395 .type = FIO_OPT_STR_SET,
1396 .off1 = td_var_offset(bs_unaligned),
1397 .help = "Don't sector align IO buffer sizes",
1400 .category = FIO_OPT_C_IO,
1401 .group = FIO_OPT_G_INVALID,
1404 .name = "randrepeat",
1405 .lname = "Random repeatable",
1406 .type = FIO_OPT_BOOL,
1407 .off1 = td_var_offset(rand_repeatable),
1408 .help = "Use repeatable random IO pattern",
1412 .category = FIO_OPT_C_IO,
1413 .group = FIO_OPT_G_RANDOM,
1416 .name = "use_os_rand",
1417 .lname = "Use OS random",
1418 .type = FIO_OPT_BOOL,
1419 .off1 = td_var_offset(use_os_rand),
1420 .help = "Set to use OS random generator",
1424 .category = FIO_OPT_C_IO,
1425 .group = FIO_OPT_G_RANDOM,
1428 .name = "norandommap",
1429 .lname = "No randommap",
1430 .type = FIO_OPT_STR_SET,
1431 .off1 = td_var_offset(norandommap),
1432 .help = "Accept potential duplicate random blocks",
1435 .category = FIO_OPT_C_IO,
1436 .group = FIO_OPT_G_RANDOM,
1439 .name = "softrandommap",
1440 .lname = "Soft randommap",
1441 .type = FIO_OPT_BOOL,
1442 .off1 = td_var_offset(softrandommap),
1443 .help = "Set norandommap if randommap allocation fails",
1444 .parent = "norandommap",
1447 .category = FIO_OPT_C_IO,
1448 .group = FIO_OPT_G_RANDOM,
1452 .lname = "Number of files",
1453 .alias = "nr_files",
1454 .type = FIO_OPT_INT,
1455 .off1 = td_var_offset(nr_files),
1456 .help = "Split job workload between this number of files",
1459 .category = FIO_OPT_C_FILE,
1460 .group = FIO_OPT_G_INVALID,
1463 .name = "openfiles",
1464 .lname = "Number of open files",
1465 .type = FIO_OPT_INT,
1466 .off1 = td_var_offset(open_files),
1467 .help = "Number of files to keep open at the same time",
1468 .category = FIO_OPT_C_FILE,
1469 .group = FIO_OPT_G_INVALID,
1472 .name = "file_service_type",
1473 .lname = "File service type",
1474 .type = FIO_OPT_STR,
1476 .off1 = td_var_offset(file_service_type),
1477 .help = "How to select which file to service next",
1478 .def = "roundrobin",
1479 .category = FIO_OPT_C_FILE,
1480 .group = FIO_OPT_G_INVALID,
1483 .oval = FIO_FSERVICE_RANDOM,
1484 .help = "Choose a file at random",
1486 { .ival = "roundrobin",
1487 .oval = FIO_FSERVICE_RR,
1488 .help = "Round robin select files",
1490 { .ival = "sequential",
1491 .oval = FIO_FSERVICE_SEQ,
1492 .help = "Finish one file before moving to the next",
1495 .parent = "nrfiles",
1498 #ifdef FIO_HAVE_FALLOCATE
1500 .name = "fallocate",
1501 .lname = "Fallocate",
1502 .type = FIO_OPT_STR,
1503 .off1 = td_var_offset(fallocate_mode),
1504 .help = "Whether pre-allocation is performed when laying out files",
1506 .category = FIO_OPT_C_FILE,
1507 .group = FIO_OPT_G_INVALID,
1510 .oval = FIO_FALLOCATE_NONE,
1511 .help = "Do not pre-allocate space",
1514 .oval = FIO_FALLOCATE_POSIX,
1515 .help = "Use posix_fallocate()",
1517 #ifdef FIO_HAVE_LINUX_FALLOCATE
1519 .oval = FIO_FALLOCATE_KEEP_SIZE,
1520 .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
1523 /* Compatibility with former boolean values */
1525 .oval = FIO_FALLOCATE_NONE,
1526 .help = "Alias for 'none'",
1529 .oval = FIO_FALLOCATE_POSIX,
1530 .help = "Alias for 'posix'",
1534 #endif /* FIO_HAVE_FALLOCATE */
1536 .name = "fadvise_hint",
1537 .lname = "Fadvise hint",
1538 .type = FIO_OPT_BOOL,
1539 .off1 = td_var_offset(fadvise_hint),
1540 .help = "Use fadvise() to advise the kernel on IO pattern",
1542 .category = FIO_OPT_C_FILE,
1543 .group = FIO_OPT_G_INVALID,
1548 .type = FIO_OPT_INT,
1549 .off1 = td_var_offset(fsync_blocks),
1550 .help = "Issue fsync for writes every given number of blocks",
1553 .category = FIO_OPT_C_FILE,
1554 .group = FIO_OPT_G_INVALID,
1557 .name = "fdatasync",
1558 .lname = "Fdatasync",
1559 .type = FIO_OPT_INT,
1560 .off1 = td_var_offset(fdatasync_blocks),
1561 .help = "Issue fdatasync for writes every given number of blocks",
1564 .category = FIO_OPT_C_FILE,
1565 .group = FIO_OPT_G_INVALID,
1568 .name = "write_barrier",
1569 .lname = "Write barrier",
1570 .type = FIO_OPT_INT,
1571 .off1 = td_var_offset(barrier_blocks),
1572 .help = "Make every Nth write a barrier write",
1575 .category = FIO_OPT_C_IO,
1576 .group = FIO_OPT_G_INVALID,
1578 #ifdef FIO_HAVE_SYNC_FILE_RANGE
1580 .name = "sync_file_range",
1581 .lname = "Sync file range",
1583 { .ival = "wait_before",
1584 .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
1585 .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
1589 .oval = SYNC_FILE_RANGE_WRITE,
1590 .help = "SYNC_FILE_RANGE_WRITE",
1594 .ival = "wait_after",
1595 .oval = SYNC_FILE_RANGE_WAIT_AFTER,
1596 .help = "SYNC_FILE_RANGE_WAIT_AFTER",
1600 .type = FIO_OPT_STR_MULTI,
1602 .off1 = td_var_offset(sync_file_range),
1603 .help = "Use sync_file_range()",
1604 .category = FIO_OPT_C_FILE,
1605 .group = FIO_OPT_G_INVALID,
1610 .lname = "Direct I/O",
1611 .type = FIO_OPT_BOOL,
1612 .off1 = td_var_offset(odirect),
1613 .help = "Use O_DIRECT IO (negates buffered)",
1615 .inverse = "buffered",
1616 .category = FIO_OPT_C_IO,
1617 .group = FIO_OPT_G_IO_TYPE,
1621 .lname = "Buffered I/O",
1622 .type = FIO_OPT_BOOL,
1623 .off1 = td_var_offset(odirect),
1625 .help = "Use buffered IO (negates direct)",
1627 .inverse = "direct",
1628 .category = FIO_OPT_C_IO,
1629 .group = FIO_OPT_G_IO_TYPE,
1632 .name = "overwrite",
1633 .lname = "Overwrite",
1634 .type = FIO_OPT_BOOL,
1635 .off1 = td_var_offset(overwrite),
1636 .help = "When writing, set whether to overwrite current data",
1638 .category = FIO_OPT_C_FILE,
1639 .group = FIO_OPT_G_INVALID,
1644 .type = FIO_OPT_INT,
1645 .off1 = td_var_offset(loops),
1646 .help = "Number of times to run the job",
1649 .category = FIO_OPT_C_GENERAL,
1650 .group = FIO_OPT_G_RUNTIME,
1654 .lname = "Number of jobs",
1655 .type = FIO_OPT_INT,
1656 .off1 = td_var_offset(numjobs),
1657 .help = "Duplicate this job this many times",
1660 .category = FIO_OPT_C_GENERAL,
1661 .group = FIO_OPT_G_RUNTIME,
1664 .name = "startdelay",
1665 .lname = "Start delay",
1666 .type = FIO_OPT_STR_VAL_TIME,
1667 .off1 = td_var_offset(start_delay),
1668 .help = "Only start job when this period has passed",
1670 .category = FIO_OPT_C_GENERAL,
1671 .group = FIO_OPT_G_RUNTIME,
1677 .type = FIO_OPT_STR_VAL_TIME,
1678 .off1 = td_var_offset(timeout),
1679 .help = "Stop workload when this amount of time has passed",
1681 .category = FIO_OPT_C_GENERAL,
1682 .group = FIO_OPT_G_RUNTIME,
1685 .name = "time_based",
1686 .lname = "Time based",
1687 .type = FIO_OPT_STR_SET,
1688 .off1 = td_var_offset(time_based),
1689 .help = "Keep running until runtime/timeout is met",
1690 .category = FIO_OPT_C_GENERAL,
1691 .group = FIO_OPT_G_RUNTIME,
1694 .name = "ramp_time",
1695 .lname = "Ramp time",
1696 .type = FIO_OPT_STR_VAL_TIME,
1697 .off1 = td_var_offset(ramp_time),
1698 .help = "Ramp up time before measuring performance",
1699 .category = FIO_OPT_C_GENERAL,
1700 .group = FIO_OPT_G_RUNTIME,
1703 .name = "clocksource",
1704 .lname = "Clock source",
1705 .type = FIO_OPT_STR,
1706 .cb = fio_clock_source_cb,
1707 .off1 = td_var_offset(clocksource),
1708 .help = "What type of timing source to use",
1709 .category = FIO_OPT_C_GENERAL,
1710 .group = FIO_OPT_G_CLOCK,
1712 { .ival = "gettimeofday",
1714 .help = "Use gettimeofday(2) for timing",
1716 { .ival = "clock_gettime",
1717 .oval = CS_CGETTIME,
1718 .help = "Use clock_gettime(2) for timing",
1720 #ifdef ARCH_HAVE_CPU_CLOCK
1722 .oval = CS_CPUCLOCK,
1723 .help = "Use CPU private clock",
1731 .lname = "I/O Memory",
1732 .type = FIO_OPT_STR,
1734 .off1 = td_var_offset(mem_type),
1735 .help = "Backing type for IO buffers",
1737 .category = FIO_OPT_C_IO,
1738 .group = FIO_OPT_G_INVALID,
1742 .help = "Use malloc(3) for IO buffers",
1746 .help = "Use shared memory segments for IO buffers",
1748 #ifdef FIO_HAVE_HUGETLB
1749 { .ival = "shmhuge",
1750 .oval = MEM_SHMHUGE,
1751 .help = "Like shm, but use huge pages",
1756 .help = "Use mmap(2) (file or anon) for IO buffers",
1758 #ifdef FIO_HAVE_HUGETLB
1759 { .ival = "mmaphuge",
1760 .oval = MEM_MMAPHUGE,
1761 .help = "Like mmap, but use huge pages",
1767 .name = "iomem_align",
1768 .alias = "mem_align",
1769 .lname = "I/O memory alignment",
1770 .type = FIO_OPT_INT,
1771 .off1 = td_var_offset(mem_align),
1773 .help = "IO memory buffer offset alignment",
1777 .category = FIO_OPT_C_IO,
1778 .group = FIO_OPT_G_INVALID,
1783 .type = FIO_OPT_STR,
1784 .off1 = td_var_offset(verify),
1785 .help = "Verify data written",
1786 .cb = str_verify_cb,
1788 .category = FIO_OPT_C_IO,
1789 .group = FIO_OPT_G_VERIFY,
1792 .oval = VERIFY_NONE,
1793 .help = "Don't do IO verification",
1797 .help = "Use md5 checksums for verification",
1800 .oval = VERIFY_CRC64,
1801 .help = "Use crc64 checksums for verification",
1804 .oval = VERIFY_CRC32,
1805 .help = "Use crc32 checksums for verification",
1807 { .ival = "crc32c-intel",
1808 .oval = VERIFY_CRC32C,
1809 .help = "Use crc32c checksums for verification (hw assisted, if available)",
1812 .oval = VERIFY_CRC32C,
1813 .help = "Use crc32c checksums for verification (hw assisted, if available)",
1816 .oval = VERIFY_CRC16,
1817 .help = "Use crc16 checksums for verification",
1820 .oval = VERIFY_CRC7,
1821 .help = "Use crc7 checksums for verification",
1824 .oval = VERIFY_SHA1,
1825 .help = "Use sha1 checksums for verification",
1828 .oval = VERIFY_SHA256,
1829 .help = "Use sha256 checksums for verification",
1832 .oval = VERIFY_SHA512,
1833 .help = "Use sha512 checksums for verification",
1836 .oval = VERIFY_META,
1837 .help = "Use io information",
1841 .oval = VERIFY_NULL,
1842 .help = "Pretend to verify",
1847 .name = "do_verify",
1848 .lname = "Perform verify step",
1849 .type = FIO_OPT_BOOL,
1850 .off1 = td_var_offset(do_verify),
1851 .help = "Run verification stage after write",
1855 .category = FIO_OPT_C_IO,
1856 .group = FIO_OPT_G_VERIFY,
1859 .name = "verifysort",
1860 .lname = "Verify sort",
1861 .type = FIO_OPT_BOOL,
1862 .off1 = td_var_offset(verifysort),
1863 .help = "Sort written verify blocks for read back",
1867 .category = FIO_OPT_C_IO,
1868 .group = FIO_OPT_G_VERIFY,
1871 .name = "verify_interval",
1872 .lname = "Verify interval",
1873 .type = FIO_OPT_INT,
1874 .off1 = td_var_offset(verify_interval),
1875 .minval = 2 * sizeof(struct verify_header),
1876 .help = "Store verify buffer header every N bytes",
1879 .interval = 2 * sizeof(struct verify_header),
1880 .category = FIO_OPT_C_IO,
1881 .group = FIO_OPT_G_VERIFY,
1884 .name = "verify_offset",
1885 .lname = "Verify offset",
1886 .type = FIO_OPT_INT,
1887 .help = "Offset verify header location by N bytes",
1889 .cb = str_verify_offset_cb,
1892 .category = FIO_OPT_C_IO,
1893 .group = FIO_OPT_G_VERIFY,
1896 .name = "verify_pattern",
1897 .lname = "Verify pattern",
1898 .type = FIO_OPT_STR,
1899 .cb = str_verify_pattern_cb,
1900 .help = "Fill pattern for IO buffers",
1903 .category = FIO_OPT_C_IO,
1904 .group = FIO_OPT_G_VERIFY,
1907 .name = "verify_fatal",
1908 .lname = "Verify fatal",
1909 .type = FIO_OPT_BOOL,
1910 .off1 = td_var_offset(verify_fatal),
1912 .help = "Exit on a single verify failure, don't continue",
1915 .category = FIO_OPT_C_IO,
1916 .group = FIO_OPT_G_VERIFY,
1919 .name = "verify_dump",
1920 .lname = "Verify dump",
1921 .type = FIO_OPT_BOOL,
1922 .off1 = td_var_offset(verify_dump),
1924 .help = "Dump contents of good and bad blocks on failure",
1927 .category = FIO_OPT_C_IO,
1928 .group = FIO_OPT_G_VERIFY,
1931 .name = "verify_async",
1932 .lname = "Verify asynchronously",
1933 .type = FIO_OPT_INT,
1934 .off1 = td_var_offset(verify_async),
1936 .help = "Number of async verifier threads to use",
1939 .category = FIO_OPT_C_IO,
1940 .group = FIO_OPT_G_VERIFY,
1943 .name = "verify_backlog",
1944 .lname = "Verify backlog",
1945 .type = FIO_OPT_STR_VAL,
1946 .off1 = td_var_offset(verify_backlog),
1947 .help = "Verify after this number of blocks are written",
1950 .category = FIO_OPT_C_IO,
1951 .group = FIO_OPT_G_VERIFY,
1954 .name = "verify_backlog_batch",
1955 .lname = "Verify backlog batch",
1956 .type = FIO_OPT_INT,
1957 .off1 = td_var_offset(verify_batch),
1958 .help = "Verify this number of IO blocks",
1961 .category = FIO_OPT_C_IO,
1962 .group = FIO_OPT_G_VERIFY,
1964 #ifdef FIO_HAVE_CPU_AFFINITY
1966 .name = "verify_async_cpus",
1967 .lname = "Async verify CPUs",
1968 .type = FIO_OPT_STR,
1969 .cb = str_verify_cpus_allowed_cb,
1970 .help = "Set CPUs allowed for async verify threads",
1971 .parent = "verify_async",
1973 .category = FIO_OPT_C_IO,
1974 .group = FIO_OPT_G_VERIFY,
1977 #ifdef FIO_HAVE_TRIM
1979 .name = "trim_percentage",
1980 .lname = "Trim percentage",
1981 .type = FIO_OPT_INT,
1982 .cb = str_verify_trim_cb,
1985 .help = "Number of verify blocks to discard/trim",
1990 .category = FIO_OPT_C_IO,
1991 .group = FIO_OPT_G_TRIM,
1994 .name = "trim_verify_zero",
1995 .lname = "Verify trim zero",
1996 .type = FIO_OPT_BOOL,
1997 .help = "Verify that trim/discarded blocks are returned as zeroes",
1998 .off1 = td_var_offset(trim_zero),
1999 .parent = "trim_percentage",
2002 .category = FIO_OPT_C_IO,
2003 .group = FIO_OPT_G_TRIM,
2006 .name = "trim_backlog",
2007 .lname = "Trim backlog",
2008 .type = FIO_OPT_STR_VAL,
2009 .off1 = td_var_offset(trim_backlog),
2010 .help = "Trim after this number of blocks are written",
2011 .parent = "trim_percentage",
2014 .category = FIO_OPT_C_IO,
2015 .group = FIO_OPT_G_TRIM,
2018 .name = "trim_backlog_batch",
2019 .lname = "Trim backlog batch",
2020 .type = FIO_OPT_INT,
2021 .off1 = td_var_offset(trim_batch),
2022 .help = "Trim this number of IO blocks",
2023 .parent = "trim_percentage",
2026 .category = FIO_OPT_C_IO,
2027 .group = FIO_OPT_G_TRIM,
2031 .name = "write_iolog",
2032 .lname = "Write I/O log",
2033 .type = FIO_OPT_STR_STORE,
2034 .off1 = td_var_offset(write_iolog_file),
2035 .help = "Store IO pattern to file",
2036 .category = FIO_OPT_C_IO,
2037 .group = FIO_OPT_G_IOLOG,
2040 .name = "read_iolog",
2041 .lname = "Read I/O log",
2042 .type = FIO_OPT_STR_STORE,
2043 .off1 = td_var_offset(read_iolog_file),
2044 .help = "Playback IO pattern from file",
2045 .category = FIO_OPT_C_IO,
2046 .group = FIO_OPT_G_IOLOG,
2049 .name = "replay_no_stall",
2050 .lname = "Don't stall on replay",
2051 .type = FIO_OPT_BOOL,
2052 .off1 = td_var_offset(no_stall),
2054 .parent = "read_iolog",
2056 .help = "Playback IO pattern file as fast as possible without stalls",
2057 .category = FIO_OPT_C_IO,
2058 .group = FIO_OPT_G_IOLOG,
2061 .name = "replay_redirect",
2062 .lname = "Redirect device for replay",
2063 .type = FIO_OPT_STR_STORE,
2064 .off1 = td_var_offset(replay_redirect),
2065 .parent = "read_iolog",
2067 .help = "Replay all I/O onto this device, regardless of trace device",
2068 .category = FIO_OPT_C_IO,
2069 .group = FIO_OPT_G_IOLOG,
2072 .name = "exec_prerun",
2073 .lname = "Pre-execute runnable",
2074 .type = FIO_OPT_STR_STORE,
2075 .off1 = td_var_offset(exec_prerun),
2076 .help = "Execute this file prior to running job",
2077 .category = FIO_OPT_C_GENERAL,
2078 .group = FIO_OPT_G_INVALID,
2081 .name = "exec_postrun",
2082 .lname = "Post-execute runnable",
2083 .type = FIO_OPT_STR_STORE,
2084 .off1 = td_var_offset(exec_postrun),
2085 .help = "Execute this file after running job",
2086 .category = FIO_OPT_C_GENERAL,
2087 .group = FIO_OPT_G_INVALID,
2089 #ifdef FIO_HAVE_IOSCHED_SWITCH
2091 .name = "ioscheduler",
2092 .lname = "I/O scheduler",
2093 .type = FIO_OPT_STR_STORE,
2094 .off1 = td_var_offset(ioscheduler),
2095 .help = "Use this IO scheduler on the backing device",
2096 .category = FIO_OPT_C_FILE,
2097 .group = FIO_OPT_G_INVALID,
2102 .lname = "Zone size",
2103 .type = FIO_OPT_STR_VAL,
2104 .off1 = td_var_offset(zone_size),
2105 .help = "Amount of data to read per zone",
2107 .interval = 1024 * 1024,
2108 .category = FIO_OPT_C_IO,
2109 .group = FIO_OPT_G_ZONE,
2112 .name = "zonerange",
2113 .lname = "Zone range",
2114 .type = FIO_OPT_STR_VAL,
2115 .off1 = td_var_offset(zone_range),
2116 .help = "Give size of an IO zone",
2118 .interval = 1024 * 1024,
2119 .category = FIO_OPT_C_IO,
2120 .group = FIO_OPT_G_ZONE,
2124 .lname = "Zone skip",
2125 .type = FIO_OPT_STR_VAL,
2126 .off1 = td_var_offset(zone_skip),
2127 .help = "Space between IO zones",
2129 .interval = 1024 * 1024,
2130 .category = FIO_OPT_C_IO,
2131 .group = FIO_OPT_G_ZONE,
2135 .lname = "Lock memory",
2136 .type = FIO_OPT_STR_VAL,
2137 .cb = str_lockmem_cb,
2138 .help = "Lock down this amount of memory",
2140 .interval = 1024 * 1024,
2141 .category = FIO_OPT_C_GENERAL,
2142 .group = FIO_OPT_G_INVALID,
2145 .name = "rwmixread",
2146 .lname = "Read/write mix read",
2147 .type = FIO_OPT_INT,
2148 .cb = str_rwmix_read_cb,
2150 .help = "Percentage of mixed workload that is reads",
2153 .inverse = "rwmixwrite",
2154 .category = FIO_OPT_C_IO,
2155 .group = FIO_OPT_G_RWMIX,
2158 .name = "rwmixwrite",
2159 .lname = "Read/write mix write",
2160 .type = FIO_OPT_INT,
2161 .cb = str_rwmix_write_cb,
2163 .help = "Percentage of mixed workload that is writes",
2166 .inverse = "rwmixread",
2167 .category = FIO_OPT_C_IO,
2168 .group = FIO_OPT_G_RWMIX,
2171 .name = "rwmixcycle",
2172 .lname = "Read/write mix cycle",
2173 .type = FIO_OPT_DEPRECATED,
2174 .category = FIO_OPT_C_IO,
2175 .group = FIO_OPT_G_RWMIX,
2180 .type = FIO_OPT_INT,
2181 .off1 = td_var_offset(nice),
2182 .help = "Set job CPU nice value",
2187 .category = FIO_OPT_C_GENERAL,
2188 .group = FIO_OPT_G_CRED,
2190 #ifdef FIO_HAVE_IOPRIO
2193 .lname = "I/O nice priority",
2194 .type = FIO_OPT_INT,
2196 .help = "Set job IO priority value",
2200 .category = FIO_OPT_C_GENERAL,
2201 .group = FIO_OPT_G_CRED,
2204 .name = "prioclass",
2205 .lname = "I/O nice priority class",
2206 .type = FIO_OPT_INT,
2207 .cb = str_prioclass_cb,
2208 .help = "Set job IO priority class",
2212 .category = FIO_OPT_C_GENERAL,
2213 .group = FIO_OPT_G_CRED,
2217 .name = "thinktime",
2218 .lname = "Thinktime",
2219 .type = FIO_OPT_INT,
2220 .off1 = td_var_offset(thinktime),
2221 .help = "Idle time between IO buffers (usec)",
2223 .category = FIO_OPT_C_IO,
2224 .group = FIO_OPT_G_THINKTIME,
2227 .name = "thinktime_spin",
2228 .lname = "Thinktime spin",
2229 .type = FIO_OPT_INT,
2230 .off1 = td_var_offset(thinktime_spin),
2231 .help = "Start think time by spinning this amount (usec)",
2233 .parent = "thinktime",
2235 .category = FIO_OPT_C_IO,
2236 .group = FIO_OPT_G_THINKTIME,
2239 .name = "thinktime_blocks",
2240 .lname = "Thinktime blocks",
2241 .type = FIO_OPT_INT,
2242 .off1 = td_var_offset(thinktime_blocks),
2243 .help = "IO buffer period between 'thinktime'",
2245 .parent = "thinktime",
2247 .category = FIO_OPT_C_IO,
2248 .group = FIO_OPT_G_THINKTIME,
2252 .lname = "I/O rate",
2253 .type = FIO_OPT_INT,
2254 .off1 = td_var_offset(rate[0]),
2255 .off2 = td_var_offset(rate[1]),
2256 .help = "Set bandwidth rate",
2257 .category = FIO_OPT_C_IO,
2258 .group = FIO_OPT_G_RATE,
2262 .lname = "I/O min rate",
2263 .type = FIO_OPT_INT,
2264 .off1 = td_var_offset(ratemin[0]),
2265 .off2 = td_var_offset(ratemin[1]),
2266 .help = "Job must meet this rate or it will be shutdown",
2269 .category = FIO_OPT_C_IO,
2270 .group = FIO_OPT_G_RATE,
2273 .name = "rate_iops",
2274 .lname = "I/O rate IOPS",
2275 .type = FIO_OPT_INT,
2276 .off1 = td_var_offset(rate_iops[0]),
2277 .off2 = td_var_offset(rate_iops[1]),
2278 .help = "Limit IO used to this number of IO operations/sec",
2280 .category = FIO_OPT_C_IO,
2281 .group = FIO_OPT_G_RATE,
2284 .name = "rate_iops_min",
2285 .lname = "I/O min rate IOPS",
2286 .type = FIO_OPT_INT,
2287 .off1 = td_var_offset(rate_iops_min[0]),
2288 .off2 = td_var_offset(rate_iops_min[1]),
2289 .help = "Job must meet this rate or it will be shut down",
2290 .parent = "rate_iops",
2292 .category = FIO_OPT_C_IO,
2293 .group = FIO_OPT_G_RATE,
2296 .name = "ratecycle",
2297 .lname = "I/O rate cycle",
2298 .type = FIO_OPT_INT,
2299 .off1 = td_var_offset(ratecycle),
2300 .help = "Window average for rate limits (msec)",
2304 .category = FIO_OPT_C_IO,
2305 .group = FIO_OPT_G_RATE,
2308 .name = "invalidate",
2309 .lname = "Cache invalidate",
2310 .type = FIO_OPT_BOOL,
2311 .off1 = td_var_offset(invalidate_cache),
2312 .help = "Invalidate buffer/page cache prior to running job",
2314 .category = FIO_OPT_C_IO,
2315 .group = FIO_OPT_G_IO_TYPE,
2319 .lname = "Synchronous I/O",
2320 .type = FIO_OPT_BOOL,
2321 .off1 = td_var_offset(sync_io),
2322 .help = "Use O_SYNC for buffered writes",
2324 .parent = "buffered",
2326 .category = FIO_OPT_C_IO,
2327 .group = FIO_OPT_G_IO_TYPE,
2330 .name = "bwavgtime",
2331 .lname = "Bandwidth average time",
2332 .type = FIO_OPT_INT,
2333 .off1 = td_var_offset(bw_avg_time),
2334 .help = "Time window over which to calculate bandwidth"
2337 .parent = "write_bw_log",
2340 .category = FIO_OPT_C_LOG,
2341 .group = FIO_OPT_G_INVALID,
2344 .name = "iopsavgtime",
2345 .lname = "IOPS average time",
2346 .type = FIO_OPT_INT,
2347 .off1 = td_var_offset(iops_avg_time),
2348 .help = "Time window over which to calculate IOPS (msec)",
2350 .parent = "write_iops_log",
2353 .category = FIO_OPT_C_LOG,
2354 .group = FIO_OPT_G_INVALID,
2357 .name = "create_serialize",
2358 .lname = "Create serialize",
2359 .type = FIO_OPT_BOOL,
2360 .off1 = td_var_offset(create_serialize),
2361 .help = "Serialize creating of job files",
2363 .category = FIO_OPT_C_FILE,
2364 .group = FIO_OPT_G_INVALID,
2367 .name = "create_fsync",
2368 .lname = "Create fsync",
2369 .type = FIO_OPT_BOOL,
2370 .off1 = td_var_offset(create_fsync),
2371 .help = "fsync file after creation",
2373 .category = FIO_OPT_C_FILE,
2374 .group = FIO_OPT_G_INVALID,
2377 .name = "create_on_open",
2378 .lname = "Create on open",
2379 .type = FIO_OPT_BOOL,
2380 .off1 = td_var_offset(create_on_open),
2381 .help = "Create files when they are opened for IO",
2383 .category = FIO_OPT_C_FILE,
2384 .group = FIO_OPT_G_INVALID,
2388 .lname = "Pre-read files",
2389 .type = FIO_OPT_BOOL,
2390 .off1 = td_var_offset(pre_read),
2391 .help = "Pre-read files before starting official testing",
2393 .category = FIO_OPT_C_FILE,
2394 .group = FIO_OPT_G_INVALID,
2396 #ifdef FIO_HAVE_CPU_AFFINITY
2399 .lname = "CPU mask",
2400 .type = FIO_OPT_INT,
2401 .cb = str_cpumask_cb,
2402 .help = "CPU affinity mask",
2403 .category = FIO_OPT_C_GENERAL,
2404 .group = FIO_OPT_G_CRED,
2407 .name = "cpus_allowed",
2408 .lname = "CPUs allowed",
2409 .type = FIO_OPT_STR,
2410 .cb = str_cpus_allowed_cb,
2411 .help = "Set CPUs allowed",
2412 .category = FIO_OPT_C_GENERAL,
2413 .group = FIO_OPT_G_CRED,
2417 .name = "end_fsync",
2418 .lname = "End fsync",
2419 .type = FIO_OPT_BOOL,
2420 .off1 = td_var_offset(end_fsync),
2421 .help = "Include fsync at the end of job",
2423 .category = FIO_OPT_C_FILE,
2424 .group = FIO_OPT_G_INVALID,
2427 .name = "fsync_on_close",
2428 .lname = "Fsync on close",
2429 .type = FIO_OPT_BOOL,
2430 .off1 = td_var_offset(fsync_on_close),
2431 .help = "fsync files on close",
2433 .category = FIO_OPT_C_FILE,
2434 .group = FIO_OPT_G_INVALID,
2438 .lname = "Unlink file",
2439 .type = FIO_OPT_BOOL,
2440 .off1 = td_var_offset(unlink),
2441 .help = "Unlink created files after job has completed",
2443 .category = FIO_OPT_C_FILE,
2444 .group = FIO_OPT_G_INVALID,
2448 .lname = "Exit-all on terminate",
2449 .type = FIO_OPT_STR_SET,
2450 .cb = str_exitall_cb,
2451 .help = "Terminate all jobs when one exits",
2452 .category = FIO_OPT_C_GENERAL,
2453 .group = FIO_OPT_G_PROCESS,
2456 .name = "stonewall",
2457 .lname = "Wait for previous",
2458 .alias = "wait_for_previous",
2459 .type = FIO_OPT_STR_SET,
2460 .off1 = td_var_offset(stonewall),
2461 .help = "Insert a hard barrier between this job and previous",
2462 .category = FIO_OPT_C_GENERAL,
2463 .group = FIO_OPT_G_PROCESS,
2466 .name = "new_group",
2467 .lname = "New group",
2468 .type = FIO_OPT_STR_SET,
2469 .off1 = td_var_offset(new_group),
2470 .help = "Mark the start of a new group (for reporting)",
2471 .category = FIO_OPT_C_GENERAL,
2472 .group = FIO_OPT_G_PROCESS,
2477 .type = FIO_OPT_STR_SET,
2478 .off1 = td_var_offset(use_thread),
2479 .help = "Use threads instead of processes",
2480 .category = FIO_OPT_C_GENERAL,
2481 .group = FIO_OPT_G_PROCESS,
2484 .name = "write_bw_log",
2485 .lname = "Write bandwidth log",
2486 .type = FIO_OPT_STR,
2487 .off1 = td_var_offset(write_bw_log),
2488 .cb = str_write_bw_log_cb,
2489 .help = "Write log of bandwidth during run",
2490 .category = FIO_OPT_C_LOG,
2491 .group = FIO_OPT_G_INVALID,
2494 .name = "write_lat_log",
2495 .lname = "Write latency log",
2496 .type = FIO_OPT_STR,
2497 .off1 = td_var_offset(write_lat_log),
2498 .cb = str_write_lat_log_cb,
2499 .help = "Write log of latency during run",
2500 .category = FIO_OPT_C_LOG,
2501 .group = FIO_OPT_G_INVALID,
2504 .name = "write_iops_log",
2505 .lname = "Write IOPS log",
2506 .type = FIO_OPT_STR,
2507 .off1 = td_var_offset(write_iops_log),
2508 .cb = str_write_iops_log_cb,
2509 .help = "Write log of IOPS during run",
2510 .category = FIO_OPT_C_LOG,
2511 .group = FIO_OPT_G_INVALID,
2514 .name = "log_avg_msec",
2515 .lname = "Log averaging (msec)",
2516 .type = FIO_OPT_INT,
2517 .off1 = td_var_offset(log_avg_msec),
2518 .help = "Average bw/iops/lat logs over this period of time",
2520 .category = FIO_OPT_C_LOG,
2521 .group = FIO_OPT_G_INVALID,
2524 .name = "group_reporting",
2525 .lname = "Group reporting",
2526 .type = FIO_OPT_BOOL,
2527 .off1 = td_var_offset(group_reporting),
2528 .help = "Do reporting on a per-group basis",
2530 .category = FIO_OPT_C_STAT,
2531 .group = FIO_OPT_G_INVALID,
2534 .name = "zero_buffers",
2535 .lname = "Zero I/O buffers",
2536 .type = FIO_OPT_STR_SET,
2537 .off1 = td_var_offset(zero_buffers),
2538 .help = "Init IO buffers to all zeroes",
2539 .category = FIO_OPT_C_IO,
2540 .group = FIO_OPT_G_IO_BUF,
2543 .name = "refill_buffers",
2544 .lname = "Refill I/O buffers",
2545 .type = FIO_OPT_STR_SET,
2546 .off1 = td_var_offset(refill_buffers),
2547 .help = "Refill IO buffers on every IO submit",
2548 .category = FIO_OPT_C_IO,
2549 .group = FIO_OPT_G_IO_BUF,
2552 .name = "scramble_buffers",
2553 .lname = "Scramble I/O buffers",
2554 .type = FIO_OPT_BOOL,
2555 .off1 = td_var_offset(scramble_buffers),
2556 .help = "Slightly scramble buffers on every IO submit",
2558 .category = FIO_OPT_C_IO,
2559 .group = FIO_OPT_G_IO_BUF,
2562 .name = "buffer_compress_percentage",
2563 .lname = "Buffer compression percentage",
2564 .type = FIO_OPT_INT,
2565 .off1 = td_var_offset(compress_percentage),
2568 .help = "How compressible the buffer is (approximately)",
2570 .category = FIO_OPT_C_IO,
2571 .group = FIO_OPT_G_IO_BUF,
2574 .name = "buffer_compress_chunk",
2575 .lname = "Buffer compression chunk size",
2576 .type = FIO_OPT_INT,
2577 .off1 = td_var_offset(compress_chunk),
2578 .parent = "buffer_compress_percentage",
2580 .help = "Size of compressible region in buffer",
2582 .category = FIO_OPT_C_IO,
2583 .group = FIO_OPT_G_IO_BUF,
2586 .name = "clat_percentiles",
2587 .lname = "Completion latency percentiles",
2588 .type = FIO_OPT_BOOL,
2589 .off1 = td_var_offset(clat_percentiles),
2590 .help = "Enable the reporting of completion latency percentiles",
2592 .category = FIO_OPT_C_STAT,
2593 .group = FIO_OPT_G_INVALID,
2596 .name = "percentile_list",
2597 .lname = "Completion latency percentile list",
2598 .type = FIO_OPT_FLOAT_LIST,
2599 .off1 = td_var_offset(percentile_list),
2600 .off2 = td_var_offset(overwrite_plist),
2601 .help = "Specify a custom list of percentiles to report",
2602 .maxlen = FIO_IO_U_LIST_MAX_LEN,
2605 .category = FIO_OPT_C_STAT,
2606 .group = FIO_OPT_G_INVALID,
2609 #ifdef FIO_HAVE_DISK_UTIL
2611 .name = "disk_util",
2612 .lname = "Disk utilization",
2613 .type = FIO_OPT_BOOL,
2614 .off1 = td_var_offset(do_disk_util),
2615 .help = "Log disk utilization statistics",
2617 .category = FIO_OPT_C_STAT,
2618 .group = FIO_OPT_G_INVALID,
2622 .name = "gtod_reduce",
2623 .lname = "Reduce gettimeofday() calls",
2624 .type = FIO_OPT_BOOL,
2625 .help = "Greatly reduce number of gettimeofday() calls",
2626 .cb = str_gtod_reduce_cb,
2628 .category = FIO_OPT_C_STAT,
2629 .group = FIO_OPT_G_INVALID,
2632 .name = "disable_lat",
2633 .lname = "Disable all latency stats",
2634 .type = FIO_OPT_BOOL,
2635 .off1 = td_var_offset(disable_lat),
2636 .help = "Disable latency numbers",
2637 .parent = "gtod_reduce",
2640 .category = FIO_OPT_C_STAT,
2641 .group = FIO_OPT_G_INVALID,
2644 .name = "disable_clat",
2645 .lname = "Disable completion latency stats",
2646 .type = FIO_OPT_BOOL,
2647 .off1 = td_var_offset(disable_clat),
2648 .help = "Disable completion latency numbers",
2649 .parent = "gtod_reduce",
2652 .category = FIO_OPT_C_STAT,
2653 .group = FIO_OPT_G_INVALID,
2656 .name = "disable_slat",
2657 .lname = "Disable submission latency stats",
2658 .type = FIO_OPT_BOOL,
2659 .off1 = td_var_offset(disable_slat),
2660 .help = "Disable submission latency numbers",
2661 .parent = "gtod_reduce",
2664 .category = FIO_OPT_C_STAT,
2665 .group = FIO_OPT_G_INVALID,
2668 .name = "disable_bw_measurement",
2669 .lname = "Disable bandwidth stats",
2670 .type = FIO_OPT_BOOL,
2671 .off1 = td_var_offset(disable_bw),
2672 .help = "Disable bandwidth logging",
2673 .parent = "gtod_reduce",
2676 .category = FIO_OPT_C_STAT,
2677 .group = FIO_OPT_G_INVALID,
2681 .lname = "Dedicated gettimeofday() CPU",
2682 .type = FIO_OPT_INT,
2683 .cb = str_gtod_cpu_cb,
2684 .help = "Set up dedicated gettimeofday() thread on this CPU",
2685 .verify = gtod_cpu_verify,
2686 .category = FIO_OPT_C_GENERAL,
2687 .group = FIO_OPT_G_CLOCK,
2690 .name = "continue_on_error",
2691 .lname = "Continue on error",
2692 .type = FIO_OPT_STR,
2693 .off1 = td_var_offset(continue_on_error),
2694 .help = "Continue on non-fatal errors during IO",
2696 .category = FIO_OPT_C_GENERAL,
2697 .group = FIO_OPT_G_INVALID,
2700 .oval = ERROR_TYPE_NONE,
2701 .help = "Exit when an error is encountered",
2704 .oval = ERROR_TYPE_READ,
2705 .help = "Continue on read errors only",
2708 .oval = ERROR_TYPE_WRITE,
2709 .help = "Continue on write errors only",
2712 .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
2713 .help = "Continue on any IO errors",
2716 .oval = ERROR_TYPE_VERIFY,
2717 .help = "Continue on verify errors only",
2720 .oval = ERROR_TYPE_ANY,
2721 .help = "Continue on all io and verify errors",
2724 .oval = ERROR_TYPE_NONE,
2725 .help = "Alias for 'none'",
2728 .oval = ERROR_TYPE_ANY,
2729 .help = "Alias for 'all'",
2736 .type = FIO_OPT_STR_STORE,
2737 .off1 = td_var_offset(profile),
2738 .help = "Select a specific builtin performance test",
2739 .category = FIO_OPT_C_GENERAL,
2740 .group = FIO_OPT_G_INVALID,
2745 .type = FIO_OPT_STR_STORE,
2746 .off1 = td_var_offset(cgroup),
2747 .help = "Add job to cgroup of this name",
2748 .category = FIO_OPT_C_GENERAL,
2749 .group = FIO_OPT_G_CGROUP,
2752 .name = "cgroup_nodelete",
2753 .lname = "Cgroup no-delete",
2754 .type = FIO_OPT_BOOL,
2755 .off1 = td_var_offset(cgroup_nodelete),
2756 .help = "Do not delete cgroups after job completion",
2759 .category = FIO_OPT_C_GENERAL,
2760 .group = FIO_OPT_G_CGROUP,
2763 .name = "cgroup_weight",
2764 .lname = "Cgroup weight",
2765 .type = FIO_OPT_INT,
2766 .off1 = td_var_offset(cgroup_weight),
2767 .help = "Use given weight for cgroup",
2771 .category = FIO_OPT_C_GENERAL,
2772 .group = FIO_OPT_G_CGROUP,
2777 .type = FIO_OPT_INT,
2778 .off1 = td_var_offset(uid),
2779 .help = "Run job with this user ID",
2780 .category = FIO_OPT_C_GENERAL,
2781 .group = FIO_OPT_G_CRED,
2785 .lname = "Group ID",
2786 .type = FIO_OPT_INT,
2787 .off1 = td_var_offset(gid),
2788 .help = "Run job with this group ID",
2789 .category = FIO_OPT_C_GENERAL,
2790 .group = FIO_OPT_G_CRED,
2795 .type = FIO_OPT_INT,
2796 .off1 = td_var_offset(kb_base),
2797 .verify = kb_base_verify,
2800 .help = "How many bytes per KB for reporting (1000 or 1024)",
2801 .category = FIO_OPT_C_GENERAL,
2802 .group = FIO_OPT_G_INVALID,
2805 .name = "hugepage-size",
2806 .lname = "Hugepage size",
2807 .type = FIO_OPT_INT,
2808 .off1 = td_var_offset(hugepage_size),
2809 .help = "When using hugepages, specify size of each page",
2810 .def = __fio_stringify(FIO_HUGE_PAGE),
2811 .interval = 1024 * 1024,
2812 .category = FIO_OPT_C_GENERAL,
2813 .group = FIO_OPT_G_INVALID,
2817 .lname = "I/O flow ID",
2818 .type = FIO_OPT_INT,
2819 .off1 = td_var_offset(flow_id),
2820 .help = "The flow index ID to use",
2822 .category = FIO_OPT_C_IO,
2823 .group = FIO_OPT_G_IO_FLOW,
2827 .lname = "I/O flow weight",
2828 .type = FIO_OPT_INT,
2829 .off1 = td_var_offset(flow),
2830 .help = "Weight for flow control of this job",
2831 .parent = "flow_id",
2834 .category = FIO_OPT_C_IO,
2835 .group = FIO_OPT_G_IO_FLOW,
2838 .name = "flow_watermark",
2839 .lname = "I/O flow watermark",
2840 .type = FIO_OPT_INT,
2841 .off1 = td_var_offset(flow_watermark),
2842 .help = "High watermark for flow control. This option"
2843 " should be set to the same value for all threads"
2844 " with non-zero flow.",
2845 .parent = "flow_id",
2848 .category = FIO_OPT_C_IO,
2849 .group = FIO_OPT_G_IO_FLOW,
2852 .name = "flow_sleep",
2853 .lname = "I/O flow sleep",
2854 .type = FIO_OPT_INT,
2855 .off1 = td_var_offset(flow_sleep),
2856 .help = "How many microseconds to sleep after being held"
2857 " back by the flow control mechanism",
2858 .parent = "flow_id",
2861 .category = FIO_OPT_C_IO,
2862 .group = FIO_OPT_G_IO_FLOW,
2869 static void add_to_lopt(struct option *lopt, struct fio_option *o,
2870 const char *name, int val)
2872 lopt->name = (char *) name;
2874 if (o->type == FIO_OPT_STR_SET)
2875 lopt->has_arg = no_argument;
2877 lopt->has_arg = required_argument;
2880 static void options_to_lopts(struct fio_option *opts,
2881 struct option *long_options,
2882 int i, int option_type)
2884 struct fio_option *o = &opts[0];
2886 add_to_lopt(&long_options[i], o, o->name, option_type);
2889 add_to_lopt(&long_options[i], o, o->alias, option_type);
2894 assert(i < FIO_NR_OPTIONS);
2898 void fio_options_set_ioengine_opts(struct option *long_options,
2899 struct thread_data *td)
2904 while (long_options[i].name) {
2905 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
2906 memset(&long_options[i], 0, sizeof(*long_options));
2913 * Just clear out the prior ioengine options.
2918 options_to_lopts(td->io_ops->options, long_options, i,
2919 FIO_GETOPT_IOENGINE);
2922 void fio_options_dup_and_init(struct option *long_options)
2926 options_init(fio_options);
2929 while (long_options[i].name)
2932 options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
2935 struct fio_keyword {
2941 static struct fio_keyword fio_keywords[] = {
2943 .word = "$pagesize",
2944 .desc = "Page size in the system",
2947 .word = "$mb_memory",
2948 .desc = "Megabytes of memory online",
2952 .desc = "Number of CPUs online in the system",
2959 void fio_keywords_init(void)
2961 unsigned long long mb_memory;
2965 sprintf(buf, "%lu", page_size);
2966 fio_keywords[0].replace = strdup(buf);
2968 mb_memory = os_phys_mem() / (1024 * 1024);
2969 sprintf(buf, "%llu", mb_memory);
2970 fio_keywords[1].replace = strdup(buf);
2973 sprintf(buf, "%lu", l);
2974 fio_keywords[2].replace = strdup(buf);
2979 static char *bc_calc(char *str)
2981 char buf[128], *tmp;
2986 * No math, just return string
2988 if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
2989 !strchr(str, '/')) || strchr(str, '\''))
2993 * Split option from value, we only need to calculate the value
2995 tmp = strchr(str, '=');
3002 * Prevent buffer overflows; such a case isn't reasonable anyway
3004 if (strlen(str) >= 128 || strlen(tmp) > 100)
3007 sprintf(buf, "which %s > /dev/null", BC_APP);
3009 log_err("fio: bc is needed for performing math\n");
3013 sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
3014 f = popen(buf, "r");
3019 ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
3025 buf[(tmp - str) + ret - 1] = '\0';
3026 memcpy(buf, str, tmp - str);
3032 * Return a copy of the input string with substrings of the form ${VARNAME}
3033 * substituted with the value of the environment variable VARNAME. The
3034 * substitution always occurs, even if VARNAME is empty or the corresponding
3035 * environment variable undefined.
3037 static char *option_dup_subs(const char *opt)
3039 char out[OPT_LEN_MAX+1];
3040 char in[OPT_LEN_MAX+1];
3043 char *ch1, *ch2, *env;
3044 ssize_t nchr = OPT_LEN_MAX;
3047 if (strlen(opt) + 1 > OPT_LEN_MAX) {
3048 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
3052 in[OPT_LEN_MAX] = '\0';
3053 strncpy(in, opt, OPT_LEN_MAX);
3055 while (*inptr && nchr > 0) {
3056 if (inptr[0] == '$' && inptr[1] == '{') {
3057 ch2 = strchr(inptr, '}');
3058 if (ch2 && inptr+1 < ch2) {
3065 envlen = strlen(env);
3066 if (envlen <= nchr) {
3067 memcpy(outptr, env, envlen);
3077 *outptr++ = *inptr++;
3086 * Look for reserved variable names and replace them with real values
3088 static char *fio_keyword_replace(char *opt)
3094 for (i = 0; fio_keywords[i].word != NULL; i++) {
3095 struct fio_keyword *kw = &fio_keywords[i];
3097 while ((s = strstr(opt, kw->word)) != NULL) {
3098 char *new = malloc(strlen(opt) + 1);
3104 * Copy part of the string before the keyword and
3105 * sprintf() the replacement after it.
3107 memcpy(new, opt, olen);
3108 len = sprintf(new + olen, "%s", kw->replace);
3111 * If there's more in the original string, copy that
3114 opt += strlen(kw->word) + olen;
3116 memcpy(new + olen + len, opt, opt - o_org - 1);
3119 * replace opt and free the old opt
3129 * Check for potential math and invoke bc, if possible
3137 static char **dup_and_sub_options(char **opts, int num_opts)
3140 char **opts_copy = malloc(num_opts * sizeof(*opts));
3141 for (i = 0; i < num_opts; i++) {
3142 opts_copy[i] = option_dup_subs(opts[i]);
3145 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
3150 int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
3152 int i, ret, unknown;
3155 sort_options(opts, fio_options, num_opts);
3156 opts_copy = dup_and_sub_options(opts, num_opts);
3158 for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
3159 struct fio_option *o;
3160 int newret = parse_option(opts_copy[i], opts[i], fio_options,
3169 opts_copy[i] = NULL;
3176 ret |= ioengine_load(td);
3178 sort_options(opts_copy, td->io_ops->options, num_opts);
3181 for (i = 0; i < num_opts; i++) {
3182 struct fio_option *o = NULL;
3188 newret = parse_option(opts_copy[i], opts[i],
3189 td->io_ops->options, &o,
3194 log_err("Bad option <%s>\n", opts[i]);
3197 opts_copy[i] = NULL;
3205 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
3207 return parse_cmd_option(opt, val, fio_options, td);
3210 int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
3213 return parse_cmd_option(opt, val, td->io_ops->options, td);
3216 void fio_fill_default_options(struct thread_data *td)
3218 fill_default_options(td, fio_options);
3221 int fio_show_option_help(const char *opt)
3223 return show_cmd_help(fio_options, opt);
3226 void options_mem_dupe(void *data, struct fio_option *options)
3228 struct fio_option *o;
3231 for (o = &options[0]; o->name; o++) {
3232 if (o->type != FIO_OPT_STR_STORE)
3235 ptr = td_var(data, o->off1);
3237 *ptr = strdup(*ptr);
3242 * dupe FIO_OPT_STR_STORE options
3244 void fio_options_mem_dupe(struct thread_data *td)
3246 options_mem_dupe(&td->o, fio_options);
3248 if (td->eo && td->io_ops) {
3249 void *oldeo = td->eo;
3251 td->eo = malloc(td->io_ops->option_struct_size);
3252 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
3253 options_mem_dupe(td->eo, td->io_ops->options);
3257 unsigned int fio_get_kb_base(void *data)
3259 struct thread_data *td = data;
3260 unsigned int kb_base = 0;
3263 kb_base = td->o.kb_base;
3270 int add_option(struct fio_option *o)
3272 struct fio_option *__o;
3281 memcpy(&fio_options[opt_index], o, sizeof(*o));
3285 void invalidate_profile_options(const char *prof_name)
3287 struct fio_option *o;
3291 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
3292 o->type = FIO_OPT_INVALID;
3293 o->prof_name = NULL;
3299 void add_opt_posval(const char *optname, const char *ival, const char *help)
3301 struct fio_option *o;
3304 o = find_option(fio_options, optname);
3308 for (i = 0; i < PARSE_MAX_VP; i++) {
3309 if (o->posval[i].ival)
3312 o->posval[i].ival = ival;
3313 o->posval[i].help = help;
3318 void del_opt_posval(const char *optname, const char *ival)
3320 struct fio_option *o;
3323 o = find_option(fio_options, optname);
3327 for (i = 0; i < PARSE_MAX_VP; i++) {
3328 if (!o->posval[i].ival)
3330 if (strcmp(o->posval[i].ival, ival))
3333 o->posval[i].ival = NULL;
3334 o->posval[i].help = NULL;
3338 void fio_options_free(struct thread_data *td)
3340 options_free(fio_options, td);
3341 if (td->eo && td->io_ops && td->io_ops->options) {
3342 options_free(td->io_ops->options, td->eo);