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,
958 struct opt_group *opt_group_cat_from_mask(unsigned int *mask)
960 return __opt_group_from_mask(fio_opt_cat_groups, mask, FIO_OPT_G_INVALID);
964 * Map of job/command line options
966 struct fio_option fio_options[FIO_MAX_OPTS] = {
968 .name = "description",
969 .lname = "Description of job",
970 .type = FIO_OPT_STR_STORE,
971 .off1 = td_var_offset(description),
972 .help = "Text job description",
973 .category = FIO_OPT_C_GENERAL,
974 .group = FIO_OPT_G_DESC,
979 .type = FIO_OPT_STR_STORE,
980 .off1 = td_var_offset(name),
981 .help = "Name of this job",
982 .category = FIO_OPT_C_GENERAL,
983 .group = FIO_OPT_G_DESC,
987 .lname = "Filename(s)",
988 .type = FIO_OPT_STR_STORE,
989 .off1 = td_var_offset(filename),
990 .cb = str_filename_cb,
991 .prio = -1, /* must come after "directory" */
992 .help = "File(s) to use for the workload",
993 .category = FIO_OPT_C_FILE,
994 .group = FIO_OPT_G_FILENAME,
998 .lname = "Directory",
999 .type = FIO_OPT_STR_STORE,
1000 .off1 = td_var_offset(directory),
1001 .cb = str_directory_cb,
1002 .help = "Directory to store files in",
1003 .category = FIO_OPT_C_FILE,
1004 .group = FIO_OPT_G_FILENAME,
1008 .lname = "Lockfile",
1009 .type = FIO_OPT_STR,
1010 .cb = str_lockfile_cb,
1011 .off1 = td_var_offset(file_lock_mode),
1012 .help = "Lock file when doing IO to it",
1013 .parent = "filename",
1016 .category = FIO_OPT_C_FILE,
1017 .group = FIO_OPT_G_FILENAME,
1020 .oval = FILE_LOCK_NONE,
1021 .help = "No file locking",
1023 { .ival = "exclusive",
1024 .oval = FILE_LOCK_EXCLUSIVE,
1025 .help = "Exclusive file lock",
1028 .ival = "readwrite",
1029 .oval = FILE_LOCK_READWRITE,
1030 .help = "Read vs write lock",
1036 .lname = "Open directory",
1037 .type = FIO_OPT_STR_STORE,
1038 .off1 = td_var_offset(opendir),
1039 .cb = str_opendir_cb,
1040 .help = "Recursively add files from this directory and down",
1041 .category = FIO_OPT_C_FILE,
1042 .group = FIO_OPT_G_FILENAME,
1046 .lname = "Read/write",
1047 .alias = "readwrite",
1048 .type = FIO_OPT_STR,
1050 .off1 = td_var_offset(td_ddir),
1051 .help = "IO direction",
1053 .verify = rw_verify,
1054 .category = FIO_OPT_C_IO,
1055 .group = FIO_OPT_G_IO_BASIC,
1058 .oval = TD_DDIR_READ,
1059 .help = "Sequential read",
1062 .oval = TD_DDIR_WRITE,
1063 .help = "Sequential write",
1065 { .ival = "randread",
1066 .oval = TD_DDIR_RANDREAD,
1067 .help = "Random read",
1069 { .ival = "randwrite",
1070 .oval = TD_DDIR_RANDWRITE,
1071 .help = "Random write",
1075 .help = "Sequential read and write mix",
1078 .oval = TD_DDIR_RANDRW,
1079 .help = "Random read and write mix"
1084 .name = "rw_sequencer",
1085 .lname = "RW Sequencer",
1086 .type = FIO_OPT_STR,
1087 .off1 = td_var_offset(rw_seq),
1088 .help = "IO offset generator modifier",
1089 .def = "sequential",
1090 .category = FIO_OPT_C_IO,
1091 .group = FIO_OPT_G_IO_BASIC,
1093 { .ival = "sequential",
1095 .help = "Generate sequential offsets",
1097 { .ival = "identical",
1098 .oval = RW_SEQ_IDENT,
1099 .help = "Generate identical offsets",
1106 .lname = "IO Engine",
1107 .type = FIO_OPT_STR_STORE,
1108 .off1 = td_var_offset(ioengine),
1109 .help = "IO engine to use",
1110 .def = FIO_PREFERRED_ENGINE,
1111 .category = FIO_OPT_C_IO,
1112 .group = FIO_OPT_G_IO_BASIC,
1115 .help = "Use read/write",
1118 .help = "Use pread/pwrite",
1121 .help = "Use readv/writev",
1123 #ifdef FIO_HAVE_LIBAIO
1125 .help = "Linux native asynchronous IO",
1128 #ifdef FIO_HAVE_POSIXAIO
1129 { .ival = "posixaio",
1130 .help = "POSIX asynchronous IO",
1133 #ifdef FIO_HAVE_SOLARISAIO
1134 { .ival = "solarisaio",
1135 .help = "Solaris native asynchronous IO",
1138 #ifdef FIO_HAVE_WINDOWSAIO
1139 { .ival = "windowsaio",
1140 .help = "Windows native asynchronous IO"
1144 .help = "Memory mapped IO"
1146 #ifdef FIO_HAVE_SPLICE
1148 .help = "splice/vmsplice based IO",
1150 { .ival = "netsplice",
1151 .help = "splice/vmsplice to/from the network",
1154 #ifdef FIO_HAVE_SGIO
1156 .help = "SCSI generic v3 IO",
1160 .help = "Testing engine (no data transfer)",
1163 .help = "Network IO",
1165 #ifdef FIO_HAVE_SYSLET
1166 { .ival = "syslet-rw",
1167 .help = "syslet enabled async pread/pwrite IO",
1171 .help = "CPU cycle burner engine",
1173 #ifdef FIO_HAVE_GUASI
1175 .help = "GUASI IO engine",
1178 #ifdef FIO_HAVE_BINJECT
1179 { .ival = "binject",
1180 .help = "binject direct inject block engine",
1183 #ifdef FIO_HAVE_RDMA
1185 .help = "RDMA IO engine",
1188 { .ival = "external",
1189 .help = "Load external engine (append name)",
1195 .lname = "IO Depth",
1196 .type = FIO_OPT_INT,
1197 .off1 = td_var_offset(iodepth),
1198 .help = "Number of IO buffers to keep in flight",
1202 .category = FIO_OPT_C_IO,
1203 .group = FIO_OPT_G_IO_BASIC,
1206 .name = "iodepth_batch",
1207 .lname = "IO Depth batch",
1208 .alias = "iodepth_batch_submit",
1209 .type = FIO_OPT_INT,
1210 .off1 = td_var_offset(iodepth_batch),
1211 .help = "Number of IO buffers to submit in one go",
1212 .parent = "iodepth",
1217 .category = FIO_OPT_C_IO,
1218 .group = FIO_OPT_G_IO_BASIC,
1221 .name = "iodepth_batch_complete",
1222 .lname = "IO Depth batch complete",
1223 .type = FIO_OPT_INT,
1224 .off1 = td_var_offset(iodepth_batch_complete),
1225 .help = "Number of IO buffers to retrieve in one go",
1226 .parent = "iodepth",
1231 .category = FIO_OPT_C_IO,
1232 .group = FIO_OPT_G_IO_BASIC,
1235 .name = "iodepth_low",
1236 .lname = "IO Depth batch low",
1237 .type = FIO_OPT_INT,
1238 .off1 = td_var_offset(iodepth_low),
1239 .help = "Low water mark for queuing depth",
1240 .parent = "iodepth",
1243 .category = FIO_OPT_C_IO,
1244 .group = FIO_OPT_G_IO_BASIC,
1249 .type = FIO_OPT_STR_VAL,
1251 .help = "Total size of device or files",
1252 .interval = 1024 * 1024,
1253 .category = FIO_OPT_C_IO,
1254 .group = FIO_OPT_G_INVALID,
1257 .name = "fill_device",
1258 .lname = "Fill device",
1260 .type = FIO_OPT_BOOL,
1261 .off1 = td_var_offset(fill_device),
1262 .help = "Write until an ENOSPC error occurs",
1264 .category = FIO_OPT_C_FILE,
1265 .group = FIO_OPT_G_INVALID,
1269 .lname = "File size",
1270 .type = FIO_OPT_STR_VAL,
1271 .off1 = td_var_offset(file_size_low),
1272 .off2 = td_var_offset(file_size_high),
1274 .help = "Size of individual files",
1275 .interval = 1024 * 1024,
1276 .category = FIO_OPT_C_FILE,
1277 .group = FIO_OPT_G_INVALID,
1281 .lname = "IO offset",
1282 .alias = "fileoffset",
1283 .type = FIO_OPT_STR_VAL,
1284 .off1 = td_var_offset(start_offset),
1285 .help = "Start IO from this offset",
1287 .interval = 1024 * 1024,
1288 .category = FIO_OPT_C_IO,
1289 .group = FIO_OPT_G_INVALID,
1292 .name = "offset_increment",
1293 .lname = "IO offset increment",
1294 .type = FIO_OPT_STR_VAL,
1295 .off1 = td_var_offset(offset_increment),
1296 .help = "What is the increment from one offset to the next",
1300 .interval = 1024 * 1024,
1301 .category = FIO_OPT_C_IO,
1302 .group = FIO_OPT_G_INVALID,
1306 .lname = "Block size",
1307 .alias = "blocksize",
1308 .type = FIO_OPT_INT,
1309 .off1 = td_var_offset(bs[DDIR_READ]),
1310 .off2 = td_var_offset(bs[DDIR_WRITE]),
1312 .help = "Block size unit",
1317 .category = FIO_OPT_C_IO,
1318 .group = FIO_OPT_G_INVALID,
1322 .lname = "Block size align",
1323 .alias = "blockalign",
1324 .type = FIO_OPT_INT,
1325 .off1 = td_var_offset(ba[DDIR_READ]),
1326 .off2 = td_var_offset(ba[DDIR_WRITE]),
1328 .help = "IO block offset alignment",
1332 .category = FIO_OPT_C_IO,
1333 .group = FIO_OPT_G_INVALID,
1337 .lname = "Block size range",
1338 .alias = "blocksize_range",
1339 .type = FIO_OPT_RANGE,
1340 .off1 = td_var_offset(min_bs[DDIR_READ]),
1341 .off2 = td_var_offset(max_bs[DDIR_READ]),
1342 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
1343 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
1345 .help = "Set block size range (in more detail than bs)",
1349 .category = FIO_OPT_C_IO,
1350 .group = FIO_OPT_G_INVALID,
1354 .lname = "Block size split",
1355 .type = FIO_OPT_STR,
1356 .cb = str_bssplit_cb,
1357 .help = "Set a specific mix of block sizes",
1360 .category = FIO_OPT_C_IO,
1361 .group = FIO_OPT_G_INVALID,
1364 .name = "bs_unaligned",
1365 .lname = "Block size unaligned",
1366 .alias = "blocksize_unaligned",
1367 .type = FIO_OPT_STR_SET,
1368 .off1 = td_var_offset(bs_unaligned),
1369 .help = "Don't sector align IO buffer sizes",
1372 .category = FIO_OPT_C_IO,
1373 .group = FIO_OPT_G_INVALID,
1376 .name = "randrepeat",
1377 .lname = "Random repeatable",
1378 .type = FIO_OPT_BOOL,
1379 .off1 = td_var_offset(rand_repeatable),
1380 .help = "Use repeatable random IO pattern",
1384 .category = FIO_OPT_C_IO,
1385 .group = FIO_OPT_G_INVALID,
1388 .name = "use_os_rand",
1389 .lname = "Use OS random",
1390 .type = FIO_OPT_BOOL,
1391 .off1 = td_var_offset(use_os_rand),
1392 .help = "Set to use OS random generator",
1396 .category = FIO_OPT_C_IO,
1397 .group = FIO_OPT_G_INVALID,
1400 .name = "norandommap",
1401 .lname = "No randommap",
1402 .type = FIO_OPT_STR_SET,
1403 .off1 = td_var_offset(norandommap),
1404 .help = "Accept potential duplicate random blocks",
1407 .category = FIO_OPT_C_IO,
1408 .group = FIO_OPT_G_INVALID,
1411 .name = "softrandommap",
1412 .lname = "Soft randommap",
1413 .type = FIO_OPT_BOOL,
1414 .off1 = td_var_offset(softrandommap),
1415 .help = "Set norandommap if randommap allocation fails",
1416 .parent = "norandommap",
1419 .category = FIO_OPT_C_IO,
1420 .group = FIO_OPT_G_INVALID,
1424 .lname = "Number of files",
1425 .alias = "nr_files",
1426 .type = FIO_OPT_INT,
1427 .off1 = td_var_offset(nr_files),
1428 .help = "Split job workload between this number of files",
1431 .category = FIO_OPT_C_FILE,
1432 .group = FIO_OPT_G_INVALID,
1435 .name = "openfiles",
1436 .lname = "Number of open files",
1437 .type = FIO_OPT_INT,
1438 .off1 = td_var_offset(open_files),
1439 .help = "Number of files to keep open at the same time",
1440 .category = FIO_OPT_C_FILE,
1441 .group = FIO_OPT_G_INVALID,
1444 .name = "file_service_type",
1445 .lname = "File service type",
1446 .type = FIO_OPT_STR,
1448 .off1 = td_var_offset(file_service_type),
1449 .help = "How to select which file to service next",
1450 .def = "roundrobin",
1451 .category = FIO_OPT_C_FILE,
1452 .group = FIO_OPT_G_INVALID,
1455 .oval = FIO_FSERVICE_RANDOM,
1456 .help = "Choose a file at random",
1458 { .ival = "roundrobin",
1459 .oval = FIO_FSERVICE_RR,
1460 .help = "Round robin select files",
1462 { .ival = "sequential",
1463 .oval = FIO_FSERVICE_SEQ,
1464 .help = "Finish one file before moving to the next",
1467 .parent = "nrfiles",
1470 #ifdef FIO_HAVE_FALLOCATE
1472 .name = "fallocate",
1473 .lname = "Fallocate",
1474 .type = FIO_OPT_STR,
1475 .off1 = td_var_offset(fallocate_mode),
1476 .help = "Whether pre-allocation is performed when laying out files",
1478 .category = FIO_OPT_C_FILE,
1479 .group = FIO_OPT_G_INVALID,
1482 .oval = FIO_FALLOCATE_NONE,
1483 .help = "Do not pre-allocate space",
1486 .oval = FIO_FALLOCATE_POSIX,
1487 .help = "Use posix_fallocate()",
1489 #ifdef FIO_HAVE_LINUX_FALLOCATE
1491 .oval = FIO_FALLOCATE_KEEP_SIZE,
1492 .help = "Use fallocate(..., FALLOC_FL_KEEP_SIZE, ...)",
1495 /* Compatibility with former boolean values */
1497 .oval = FIO_FALLOCATE_NONE,
1498 .help = "Alias for 'none'",
1501 .oval = FIO_FALLOCATE_POSIX,
1502 .help = "Alias for 'posix'",
1506 #endif /* FIO_HAVE_FALLOCATE */
1508 .name = "fadvise_hint",
1509 .lname = "Fadvise hint",
1510 .type = FIO_OPT_BOOL,
1511 .off1 = td_var_offset(fadvise_hint),
1512 .help = "Use fadvise() to advise the kernel on IO pattern",
1514 .category = FIO_OPT_C_FILE,
1515 .group = FIO_OPT_G_INVALID,
1520 .type = FIO_OPT_INT,
1521 .off1 = td_var_offset(fsync_blocks),
1522 .help = "Issue fsync for writes every given number of blocks",
1525 .category = FIO_OPT_C_FILE,
1526 .group = FIO_OPT_G_INVALID,
1529 .name = "fdatasync",
1530 .lname = "Fdatasync",
1531 .type = FIO_OPT_INT,
1532 .off1 = td_var_offset(fdatasync_blocks),
1533 .help = "Issue fdatasync for writes every given number of blocks",
1536 .category = FIO_OPT_C_FILE,
1537 .group = FIO_OPT_G_INVALID,
1540 .name = "write_barrier",
1541 .lname = "Write barrier",
1542 .type = FIO_OPT_INT,
1543 .off1 = td_var_offset(barrier_blocks),
1544 .help = "Make every Nth write a barrier write",
1547 .category = FIO_OPT_C_IO,
1548 .group = FIO_OPT_G_INVALID,
1550 #ifdef FIO_HAVE_SYNC_FILE_RANGE
1552 .name = "sync_file_range",
1553 .lname = "Sync file range",
1555 { .ival = "wait_before",
1556 .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
1557 .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
1561 .oval = SYNC_FILE_RANGE_WRITE,
1562 .help = "SYNC_FILE_RANGE_WRITE",
1566 .ival = "wait_after",
1567 .oval = SYNC_FILE_RANGE_WAIT_AFTER,
1568 .help = "SYNC_FILE_RANGE_WAIT_AFTER",
1572 .type = FIO_OPT_STR_MULTI,
1574 .off1 = td_var_offset(sync_file_range),
1575 .help = "Use sync_file_range()",
1576 .category = FIO_OPT_C_FILE,
1577 .group = FIO_OPT_G_INVALID,
1582 .lname = "Direct I/O",
1583 .type = FIO_OPT_BOOL,
1584 .off1 = td_var_offset(odirect),
1585 .help = "Use O_DIRECT IO (negates buffered)",
1587 .category = FIO_OPT_C_IO,
1588 .group = FIO_OPT_G_INVALID,
1592 .lname = "Buffered I/O",
1593 .type = FIO_OPT_BOOL,
1594 .off1 = td_var_offset(odirect),
1596 .help = "Use buffered IO (negates direct)",
1598 .category = FIO_OPT_C_IO,
1599 .group = FIO_OPT_G_INVALID,
1602 .name = "overwrite",
1603 .lname = "Overwrite",
1604 .type = FIO_OPT_BOOL,
1605 .off1 = td_var_offset(overwrite),
1606 .help = "When writing, set whether to overwrite current data",
1608 .category = FIO_OPT_C_FILE,
1609 .group = FIO_OPT_G_INVALID,
1614 .type = FIO_OPT_INT,
1615 .off1 = td_var_offset(loops),
1616 .help = "Number of times to run the job",
1619 .category = FIO_OPT_C_GENERAL,
1620 .group = FIO_OPT_G_RUNTIME,
1624 .lname = "Number of jobs",
1625 .type = FIO_OPT_INT,
1626 .off1 = td_var_offset(numjobs),
1627 .help = "Duplicate this job this many times",
1630 .category = FIO_OPT_C_GENERAL,
1631 .group = FIO_OPT_G_RUNTIME,
1634 .name = "startdelay",
1635 .lname = "Start delay",
1636 .type = FIO_OPT_STR_VAL_TIME,
1637 .off1 = td_var_offset(start_delay),
1638 .help = "Only start job when this period has passed",
1640 .category = FIO_OPT_C_GENERAL,
1641 .group = FIO_OPT_G_RUNTIME,
1647 .type = FIO_OPT_STR_VAL_TIME,
1648 .off1 = td_var_offset(timeout),
1649 .help = "Stop workload when this amount of time has passed",
1651 .category = FIO_OPT_C_GENERAL,
1652 .group = FIO_OPT_G_RUNTIME,
1655 .name = "time_based",
1656 .lname = "Time based",
1657 .type = FIO_OPT_STR_SET,
1658 .off1 = td_var_offset(time_based),
1659 .help = "Keep running until runtime/timeout is met",
1660 .category = FIO_OPT_C_GENERAL,
1661 .group = FIO_OPT_G_RUNTIME,
1664 .name = "ramp_time",
1665 .lname = "Ramp time",
1666 .type = FIO_OPT_STR_VAL_TIME,
1667 .off1 = td_var_offset(ramp_time),
1668 .help = "Ramp up time before measuring performance",
1669 .category = FIO_OPT_C_GENERAL,
1670 .group = FIO_OPT_G_RUNTIME,
1673 .name = "clocksource",
1674 .lname = "Clock source",
1675 .type = FIO_OPT_STR,
1676 .cb = fio_clock_source_cb,
1677 .off1 = td_var_offset(clocksource),
1678 .help = "What type of timing source to use",
1679 .category = FIO_OPT_C_GENERAL,
1680 .group = FIO_OPT_G_INVALID,
1682 { .ival = "gettimeofday",
1684 .help = "Use gettimeofday(2) for timing",
1686 { .ival = "clock_gettime",
1687 .oval = CS_CGETTIME,
1688 .help = "Use clock_gettime(2) for timing",
1690 #ifdef ARCH_HAVE_CPU_CLOCK
1692 .oval = CS_CPUCLOCK,
1693 .help = "Use CPU private clock",
1701 .lname = "I/O Memory",
1702 .type = FIO_OPT_STR,
1704 .off1 = td_var_offset(mem_type),
1705 .help = "Backing type for IO buffers",
1707 .category = FIO_OPT_C_IO,
1708 .group = FIO_OPT_G_INVALID,
1712 .help = "Use malloc(3) for IO buffers",
1716 .help = "Use shared memory segments for IO buffers",
1718 #ifdef FIO_HAVE_HUGETLB
1719 { .ival = "shmhuge",
1720 .oval = MEM_SHMHUGE,
1721 .help = "Like shm, but use huge pages",
1726 .help = "Use mmap(2) (file or anon) for IO buffers",
1728 #ifdef FIO_HAVE_HUGETLB
1729 { .ival = "mmaphuge",
1730 .oval = MEM_MMAPHUGE,
1731 .help = "Like mmap, but use huge pages",
1737 .name = "iomem_align",
1738 .alias = "mem_align",
1739 .lname = "I/O memory alignment",
1740 .type = FIO_OPT_INT,
1741 .off1 = td_var_offset(mem_align),
1743 .help = "IO memory buffer offset alignment",
1747 .category = FIO_OPT_C_IO,
1748 .group = FIO_OPT_G_INVALID,
1753 .type = FIO_OPT_STR,
1754 .off1 = td_var_offset(verify),
1755 .help = "Verify data written",
1756 .cb = str_verify_cb,
1758 .category = FIO_OPT_C_IO,
1759 .group = FIO_OPT_G_INVALID,
1762 .oval = VERIFY_NONE,
1763 .help = "Don't do IO verification",
1767 .help = "Use md5 checksums for verification",
1770 .oval = VERIFY_CRC64,
1771 .help = "Use crc64 checksums for verification",
1774 .oval = VERIFY_CRC32,
1775 .help = "Use crc32 checksums for verification",
1777 { .ival = "crc32c-intel",
1778 .oval = VERIFY_CRC32C,
1779 .help = "Use crc32c checksums for verification (hw assisted, if available)",
1782 .oval = VERIFY_CRC32C,
1783 .help = "Use crc32c checksums for verification (hw assisted, if available)",
1786 .oval = VERIFY_CRC16,
1787 .help = "Use crc16 checksums for verification",
1790 .oval = VERIFY_CRC7,
1791 .help = "Use crc7 checksums for verification",
1794 .oval = VERIFY_SHA1,
1795 .help = "Use sha1 checksums for verification",
1798 .oval = VERIFY_SHA256,
1799 .help = "Use sha256 checksums for verification",
1802 .oval = VERIFY_SHA512,
1803 .help = "Use sha512 checksums for verification",
1806 .oval = VERIFY_META,
1807 .help = "Use io information",
1811 .oval = VERIFY_NULL,
1812 .help = "Pretend to verify",
1817 .name = "do_verify",
1818 .lname = "Perform verify step",
1819 .type = FIO_OPT_BOOL,
1820 .off1 = td_var_offset(do_verify),
1821 .help = "Run verification stage after write",
1825 .category = FIO_OPT_C_IO,
1826 .group = FIO_OPT_G_VERIFY,
1829 .name = "verifysort",
1830 .lname = "Verify sort",
1831 .type = FIO_OPT_BOOL,
1832 .off1 = td_var_offset(verifysort),
1833 .help = "Sort written verify blocks for read back",
1837 .category = FIO_OPT_C_IO,
1838 .group = FIO_OPT_G_VERIFY,
1841 .name = "verify_interval",
1842 .lname = "Verify interval",
1843 .type = FIO_OPT_INT,
1844 .off1 = td_var_offset(verify_interval),
1845 .minval = 2 * sizeof(struct verify_header),
1846 .help = "Store verify buffer header every N bytes",
1849 .interval = 2 * sizeof(struct verify_header),
1850 .category = FIO_OPT_C_IO,
1851 .group = FIO_OPT_G_VERIFY,
1854 .name = "verify_offset",
1855 .lname = "Verify offset",
1856 .type = FIO_OPT_INT,
1857 .help = "Offset verify header location by N bytes",
1859 .cb = str_verify_offset_cb,
1862 .category = FIO_OPT_C_IO,
1863 .group = FIO_OPT_G_VERIFY,
1866 .name = "verify_pattern",
1867 .lname = "Verify pattern",
1868 .type = FIO_OPT_STR,
1869 .cb = str_verify_pattern_cb,
1870 .help = "Fill pattern for IO buffers",
1873 .category = FIO_OPT_C_IO,
1874 .group = FIO_OPT_G_VERIFY,
1877 .name = "verify_fatal",
1878 .lname = "Verify fatal",
1879 .type = FIO_OPT_BOOL,
1880 .off1 = td_var_offset(verify_fatal),
1882 .help = "Exit on a single verify failure, don't continue",
1885 .category = FIO_OPT_C_IO,
1886 .group = FIO_OPT_G_VERIFY,
1889 .name = "verify_dump",
1890 .lname = "Verify dump",
1891 .type = FIO_OPT_BOOL,
1892 .off1 = td_var_offset(verify_dump),
1894 .help = "Dump contents of good and bad blocks on failure",
1897 .category = FIO_OPT_C_IO,
1898 .group = FIO_OPT_G_VERIFY,
1901 .name = "verify_async",
1902 .lname = "Verify asynchronously",
1903 .type = FIO_OPT_INT,
1904 .off1 = td_var_offset(verify_async),
1906 .help = "Number of async verifier threads to use",
1909 .category = FIO_OPT_C_IO,
1910 .group = FIO_OPT_G_VERIFY,
1913 .name = "verify_backlog",
1914 .lname = "Verify backlog",
1915 .type = FIO_OPT_STR_VAL,
1916 .off1 = td_var_offset(verify_backlog),
1917 .help = "Verify after this number of blocks are written",
1920 .category = FIO_OPT_C_IO,
1921 .group = FIO_OPT_G_VERIFY,
1924 .name = "verify_backlog_batch",
1925 .lname = "Verify backlog batch",
1926 .type = FIO_OPT_INT,
1927 .off1 = td_var_offset(verify_batch),
1928 .help = "Verify this number of IO blocks",
1931 .category = FIO_OPT_C_IO,
1932 .group = FIO_OPT_G_VERIFY,
1934 #ifdef FIO_HAVE_CPU_AFFINITY
1936 .name = "verify_async_cpus",
1937 .lname = "Async verify CPUs",
1938 .type = FIO_OPT_STR,
1939 .cb = str_verify_cpus_allowed_cb,
1940 .help = "Set CPUs allowed for async verify threads",
1941 .parent = "verify_async",
1943 .category = FIO_OPT_C_IO,
1944 .group = FIO_OPT_G_VERIFY,
1947 #ifdef FIO_HAVE_TRIM
1949 .name = "trim_percentage",
1950 .lname = "Trim percentage",
1951 .type = FIO_OPT_INT,
1952 .cb = str_verify_trim_cb,
1955 .help = "Number of verify blocks to discard/trim",
1960 .category = FIO_OPT_C_IO,
1961 .group = FIO_OPT_G_TRIM,
1964 .name = "trim_verify_zero",
1965 .lname = "Verify trim zero",
1966 .type = FIO_OPT_BOOL,
1967 .help = "Verify that trim/discarded blocks are returned as zeroes",
1968 .off1 = td_var_offset(trim_zero),
1969 .parent = "trim_percentage",
1972 .category = FIO_OPT_C_IO,
1973 .group = FIO_OPT_G_TRIM,
1976 .name = "trim_backlog",
1977 .lname = "Trim backlog",
1978 .type = FIO_OPT_STR_VAL,
1979 .off1 = td_var_offset(trim_backlog),
1980 .help = "Trim after this number of blocks are written",
1981 .parent = "trim_percentage",
1984 .category = FIO_OPT_C_IO,
1985 .group = FIO_OPT_G_TRIM,
1988 .name = "trim_backlog_batch",
1989 .lname = "Trim backlog batch",
1990 .type = FIO_OPT_INT,
1991 .off1 = td_var_offset(trim_batch),
1992 .help = "Trim this number of IO blocks",
1993 .parent = "trim_percentage",
1996 .category = FIO_OPT_C_IO,
1997 .group = FIO_OPT_G_TRIM,
2001 .name = "write_iolog",
2002 .lname = "Write I/O log",
2003 .type = FIO_OPT_STR_STORE,
2004 .off1 = td_var_offset(write_iolog_file),
2005 .help = "Store IO pattern to file",
2006 .category = FIO_OPT_C_IO,
2007 .group = FIO_OPT_G_IOLOG,
2010 .name = "read_iolog",
2011 .lname = "Read I/O log",
2012 .type = FIO_OPT_STR_STORE,
2013 .off1 = td_var_offset(read_iolog_file),
2014 .help = "Playback IO pattern from file",
2015 .category = FIO_OPT_C_IO,
2016 .group = FIO_OPT_G_IOLOG,
2019 .name = "replay_no_stall",
2020 .lname = "Don't stall on replay",
2021 .type = FIO_OPT_BOOL,
2022 .off1 = td_var_offset(no_stall),
2024 .parent = "read_iolog",
2026 .help = "Playback IO pattern file as fast as possible without stalls",
2027 .category = FIO_OPT_C_IO,
2028 .group = FIO_OPT_G_IOLOG,
2031 .name = "replay_redirect",
2032 .lname = "Redirect device for replay",
2033 .type = FIO_OPT_STR_STORE,
2034 .off1 = td_var_offset(replay_redirect),
2035 .parent = "read_iolog",
2037 .help = "Replay all I/O onto this device, regardless of trace device",
2038 .category = FIO_OPT_C_IO,
2039 .group = FIO_OPT_G_IOLOG,
2042 .name = "exec_prerun",
2043 .lname = "Pre-execute runnable",
2044 .type = FIO_OPT_STR_STORE,
2045 .off1 = td_var_offset(exec_prerun),
2046 .help = "Execute this file prior to running job",
2047 .category = FIO_OPT_C_GENERAL,
2048 .group = FIO_OPT_G_INVALID,
2051 .name = "exec_postrun",
2052 .lname = "Post-execute runnable",
2053 .type = FIO_OPT_STR_STORE,
2054 .off1 = td_var_offset(exec_postrun),
2055 .help = "Execute this file after running job",
2056 .category = FIO_OPT_C_GENERAL,
2057 .group = FIO_OPT_G_INVALID,
2059 #ifdef FIO_HAVE_IOSCHED_SWITCH
2061 .name = "ioscheduler",
2062 .lname = "I/O scheduler",
2063 .type = FIO_OPT_STR_STORE,
2064 .off1 = td_var_offset(ioscheduler),
2065 .help = "Use this IO scheduler on the backing device",
2066 .category = FIO_OPT_C_FILE,
2067 .group = FIO_OPT_G_INVALID,
2072 .lname = "Zone size",
2073 .type = FIO_OPT_STR_VAL,
2074 .off1 = td_var_offset(zone_size),
2075 .help = "Amount of data to read per zone",
2077 .interval = 1024 * 1024,
2078 .category = FIO_OPT_C_IO,
2079 .group = FIO_OPT_G_ZONE,
2082 .name = "zonerange",
2083 .lname = "Zone range",
2084 .type = FIO_OPT_STR_VAL,
2085 .off1 = td_var_offset(zone_range),
2086 .help = "Give size of an IO zone",
2088 .interval = 1024 * 1024,
2089 .category = FIO_OPT_C_IO,
2090 .group = FIO_OPT_G_ZONE,
2094 .lname = "Zone skip",
2095 .type = FIO_OPT_STR_VAL,
2096 .off1 = td_var_offset(zone_skip),
2097 .help = "Space between IO zones",
2099 .interval = 1024 * 1024,
2100 .category = FIO_OPT_C_IO,
2101 .group = FIO_OPT_G_ZONE,
2105 .lname = "Lock memory",
2106 .type = FIO_OPT_STR_VAL,
2107 .cb = str_lockmem_cb,
2108 .help = "Lock down this amount of memory",
2110 .interval = 1024 * 1024,
2111 .category = FIO_OPT_C_GENERAL,
2112 .group = FIO_OPT_G_INVALID,
2115 .name = "rwmixread",
2116 .lname = "Read/write mix read",
2117 .type = FIO_OPT_INT,
2118 .cb = str_rwmix_read_cb,
2120 .help = "Percentage of mixed workload that is reads",
2123 .inverse = "rwmixwrite",
2124 .category = FIO_OPT_C_IO,
2125 .group = FIO_OPT_G_RWMIX,
2128 .name = "rwmixwrite",
2129 .lname = "Read/write mix write",
2130 .type = FIO_OPT_INT,
2131 .cb = str_rwmix_write_cb,
2133 .help = "Percentage of mixed workload that is writes",
2136 .inverse = "rwmixread",
2137 .category = FIO_OPT_C_IO,
2138 .group = FIO_OPT_G_RWMIX,
2141 .name = "rwmixcycle",
2142 .lname = "Read/write mix cycle",
2143 .type = FIO_OPT_DEPRECATED,
2144 .category = FIO_OPT_C_IO,
2145 .group = FIO_OPT_G_RWMIX,
2150 .type = FIO_OPT_INT,
2151 .off1 = td_var_offset(nice),
2152 .help = "Set job CPU nice value",
2157 .category = FIO_OPT_C_GENERAL,
2158 .group = FIO_OPT_G_INVALID,
2160 #ifdef FIO_HAVE_IOPRIO
2163 .lname = "I/O nice priority",
2164 .type = FIO_OPT_INT,
2166 .help = "Set job IO priority value",
2170 .category = FIO_OPT_C_GENERAL,
2171 .group = FIO_OPT_G_INVALID,
2174 .name = "prioclass",
2175 .lname = "I/O nice priority class",
2176 .type = FIO_OPT_INT,
2177 .cb = str_prioclass_cb,
2178 .help = "Set job IO priority class",
2182 .category = FIO_OPT_C_GENERAL,
2183 .group = FIO_OPT_G_INVALID,
2187 .name = "thinktime",
2188 .lname = "Thinktime",
2189 .type = FIO_OPT_INT,
2190 .off1 = td_var_offset(thinktime),
2191 .help = "Idle time between IO buffers (usec)",
2193 .category = FIO_OPT_C_IO,
2194 .group = FIO_OPT_G_INVALID,
2197 .name = "thinktime_spin",
2198 .lname = "Thinktime spin",
2199 .type = FIO_OPT_INT,
2200 .off1 = td_var_offset(thinktime_spin),
2201 .help = "Start think time by spinning this amount (usec)",
2203 .parent = "thinktime",
2205 .category = FIO_OPT_C_IO,
2206 .group = FIO_OPT_G_INVALID,
2209 .name = "thinktime_blocks",
2210 .lname = "Thinktime blocks",
2211 .type = FIO_OPT_INT,
2212 .off1 = td_var_offset(thinktime_blocks),
2213 .help = "IO buffer period between 'thinktime'",
2215 .parent = "thinktime",
2217 .category = FIO_OPT_C_IO,
2218 .group = FIO_OPT_G_INVALID,
2222 .lname = "I/O rate",
2223 .type = FIO_OPT_INT,
2224 .off1 = td_var_offset(rate[0]),
2225 .off2 = td_var_offset(rate[1]),
2226 .help = "Set bandwidth rate",
2227 .category = FIO_OPT_C_IO,
2228 .group = FIO_OPT_G_RATE,
2232 .lname = "I/O min rate",
2233 .type = FIO_OPT_INT,
2234 .off1 = td_var_offset(ratemin[0]),
2235 .off2 = td_var_offset(ratemin[1]),
2236 .help = "Job must meet this rate or it will be shutdown",
2239 .category = FIO_OPT_C_IO,
2240 .group = FIO_OPT_G_RATE,
2243 .name = "rate_iops",
2244 .lname = "I/O rate IOPS",
2245 .type = FIO_OPT_INT,
2246 .off1 = td_var_offset(rate_iops[0]),
2247 .off2 = td_var_offset(rate_iops[1]),
2248 .help = "Limit IO used to this number of IO operations/sec",
2250 .category = FIO_OPT_C_IO,
2251 .group = FIO_OPT_G_RATE,
2254 .name = "rate_iops_min",
2255 .lname = "I/O min rate IOPS",
2256 .type = FIO_OPT_INT,
2257 .off1 = td_var_offset(rate_iops_min[0]),
2258 .off2 = td_var_offset(rate_iops_min[1]),
2259 .help = "Job must meet this rate or it will be shut down",
2260 .parent = "rate_iops",
2262 .category = FIO_OPT_C_IO,
2263 .group = FIO_OPT_G_RATE,
2266 .name = "ratecycle",
2267 .lname = "I/O rate cycle",
2268 .type = FIO_OPT_INT,
2269 .off1 = td_var_offset(ratecycle),
2270 .help = "Window average for rate limits (msec)",
2274 .category = FIO_OPT_C_IO,
2275 .group = FIO_OPT_G_RATE,
2278 .name = "invalidate",
2279 .lname = "Cache invalidate",
2280 .type = FIO_OPT_BOOL,
2281 .off1 = td_var_offset(invalidate_cache),
2282 .help = "Invalidate buffer/page cache prior to running job",
2284 .category = FIO_OPT_C_IO,
2285 .group = FIO_OPT_G_INVALID,
2289 .lname = "Synchronous I/O",
2290 .type = FIO_OPT_BOOL,
2291 .off1 = td_var_offset(sync_io),
2292 .help = "Use O_SYNC for buffered writes",
2294 .parent = "buffered",
2296 .category = FIO_OPT_C_IO,
2297 .group = FIO_OPT_G_INVALID,
2300 .name = "bwavgtime",
2301 .lname = "Bandwidth average time",
2302 .type = FIO_OPT_INT,
2303 .off1 = td_var_offset(bw_avg_time),
2304 .help = "Time window over which to calculate bandwidth"
2307 .parent = "write_bw_log",
2310 .category = FIO_OPT_C_LOG,
2311 .group = FIO_OPT_G_INVALID,
2314 .name = "iopsavgtime",
2315 .lname = "IOPS average time",
2316 .type = FIO_OPT_INT,
2317 .off1 = td_var_offset(iops_avg_time),
2318 .help = "Time window over which to calculate IOPS (msec)",
2320 .parent = "write_iops_log",
2323 .category = FIO_OPT_C_LOG,
2324 .group = FIO_OPT_G_INVALID,
2327 .name = "create_serialize",
2328 .lname = "Create serialize",
2329 .type = FIO_OPT_BOOL,
2330 .off1 = td_var_offset(create_serialize),
2331 .help = "Serialize creating of job files",
2333 .category = FIO_OPT_C_FILE,
2334 .group = FIO_OPT_G_INVALID,
2337 .name = "create_fsync",
2338 .lname = "Create fsync",
2339 .type = FIO_OPT_BOOL,
2340 .off1 = td_var_offset(create_fsync),
2341 .help = "fsync file after creation",
2343 .category = FIO_OPT_C_FILE,
2344 .group = FIO_OPT_G_INVALID,
2347 .name = "create_on_open",
2348 .lname = "Create on open",
2349 .type = FIO_OPT_BOOL,
2350 .off1 = td_var_offset(create_on_open),
2351 .help = "Create files when they are opened for IO",
2353 .category = FIO_OPT_C_FILE,
2354 .group = FIO_OPT_G_INVALID,
2358 .lname = "Pre-read files",
2359 .type = FIO_OPT_BOOL,
2360 .off1 = td_var_offset(pre_read),
2361 .help = "Pre-read files before starting official testing",
2363 .category = FIO_OPT_C_FILE,
2364 .group = FIO_OPT_G_INVALID,
2368 .lname = "CPU load",
2369 .type = FIO_OPT_INT,
2370 .off1 = td_var_offset(cpuload),
2371 .help = "Use this percentage of CPU",
2372 .category = FIO_OPT_C_GENERAL,
2373 .group = FIO_OPT_G_INVALID,
2376 .name = "cpuchunks",
2377 .lname = "CPU chunk",
2378 .type = FIO_OPT_INT,
2379 .off1 = td_var_offset(cpucycle),
2380 .help = "Length of the CPU burn cycles (usecs)",
2382 .parent = "cpuload",
2384 .category = FIO_OPT_C_GENERAL,
2385 .group = FIO_OPT_G_INVALID,
2387 #ifdef FIO_HAVE_CPU_AFFINITY
2390 .lname = "CPU mask",
2391 .type = FIO_OPT_INT,
2392 .cb = str_cpumask_cb,
2393 .help = "CPU affinity mask",
2394 .category = FIO_OPT_C_GENERAL,
2395 .group = FIO_OPT_G_INVALID,
2398 .name = "cpus_allowed",
2399 .lname = "CPUs allowed",
2400 .type = FIO_OPT_STR,
2401 .cb = str_cpus_allowed_cb,
2402 .help = "Set CPUs allowed",
2403 .category = FIO_OPT_C_GENERAL,
2404 .group = FIO_OPT_G_INVALID,
2408 .name = "end_fsync",
2409 .lname = "End fsync",
2410 .type = FIO_OPT_BOOL,
2411 .off1 = td_var_offset(end_fsync),
2412 .help = "Include fsync at the end of job",
2414 .category = FIO_OPT_C_FILE,
2415 .group = FIO_OPT_G_INVALID,
2418 .name = "fsync_on_close",
2419 .lname = "Fsync on close",
2420 .type = FIO_OPT_BOOL,
2421 .off1 = td_var_offset(fsync_on_close),
2422 .help = "fsync files on close",
2424 .category = FIO_OPT_C_FILE,
2425 .group = FIO_OPT_G_INVALID,
2429 .lname = "Unlink file",
2430 .type = FIO_OPT_BOOL,
2431 .off1 = td_var_offset(unlink),
2432 .help = "Unlink created files after job has completed",
2434 .category = FIO_OPT_C_FILE,
2435 .group = FIO_OPT_G_INVALID,
2439 .lname = "Exit-all on terminate",
2440 .type = FIO_OPT_STR_SET,
2441 .cb = str_exitall_cb,
2442 .help = "Terminate all jobs when one exits",
2443 .category = FIO_OPT_C_GENERAL,
2444 .group = FIO_OPT_G_PROCESS,
2447 .name = "stonewall",
2448 .lname = "Wait for previous",
2449 .alias = "wait_for_previous",
2450 .type = FIO_OPT_STR_SET,
2451 .off1 = td_var_offset(stonewall),
2452 .help = "Insert a hard barrier between this job and previous",
2453 .category = FIO_OPT_C_GENERAL,
2454 .group = FIO_OPT_G_PROCESS,
2457 .name = "new_group",
2458 .lname = "New group",
2459 .type = FIO_OPT_STR_SET,
2460 .off1 = td_var_offset(new_group),
2461 .help = "Mark the start of a new group (for reporting)",
2462 .category = FIO_OPT_C_GENERAL,
2463 .group = FIO_OPT_G_PROCESS,
2468 .type = FIO_OPT_STR_SET,
2469 .off1 = td_var_offset(use_thread),
2470 .help = "Use threads instead of processes",
2471 .category = FIO_OPT_C_GENERAL,
2472 .group = FIO_OPT_G_PROCESS,
2475 .name = "write_bw_log",
2476 .lname = "Write bandwidth log",
2477 .type = FIO_OPT_STR,
2478 .off1 = td_var_offset(write_bw_log),
2479 .cb = str_write_bw_log_cb,
2480 .help = "Write log of bandwidth during run",
2481 .category = FIO_OPT_C_LOG,
2482 .group = FIO_OPT_G_INVALID,
2485 .name = "write_lat_log",
2486 .lname = "Write latency log",
2487 .type = FIO_OPT_STR,
2488 .off1 = td_var_offset(write_lat_log),
2489 .cb = str_write_lat_log_cb,
2490 .help = "Write log of latency during run",
2491 .category = FIO_OPT_C_LOG,
2492 .group = FIO_OPT_G_INVALID,
2495 .name = "write_iops_log",
2496 .lname = "Write IOPS log",
2497 .type = FIO_OPT_STR,
2498 .off1 = td_var_offset(write_iops_log),
2499 .cb = str_write_iops_log_cb,
2500 .help = "Write log of IOPS during run",
2501 .category = FIO_OPT_C_LOG,
2502 .group = FIO_OPT_G_INVALID,
2505 .name = "log_avg_msec",
2506 .lname = "Log averaging (msec)",
2507 .type = FIO_OPT_INT,
2508 .off1 = td_var_offset(log_avg_msec),
2509 .help = "Average bw/iops/lat logs over this period of time",
2511 .category = FIO_OPT_C_LOG,
2512 .group = FIO_OPT_G_INVALID,
2515 .name = "hugepage-size",
2516 .lname = "Hugepage size",
2517 .type = FIO_OPT_INT,
2518 .off1 = td_var_offset(hugepage_size),
2519 .help = "When using hugepages, specify size of each page",
2520 .def = __fio_stringify(FIO_HUGE_PAGE),
2521 .interval = 1024 * 1024,
2522 .category = FIO_OPT_C_GENERAL,
2523 .group = FIO_OPT_G_INVALID,
2526 .name = "group_reporting",
2527 .lname = "Group reporting",
2528 .type = FIO_OPT_BOOL,
2529 .off1 = td_var_offset(group_reporting),
2530 .help = "Do reporting on a per-group basis",
2532 .category = FIO_OPT_C_GENERAL,
2533 .group = FIO_OPT_G_INVALID,
2536 .name = "zero_buffers",
2537 .lname = "Zero I/O buffers",
2538 .type = FIO_OPT_STR_SET,
2539 .off1 = td_var_offset(zero_buffers),
2540 .help = "Init IO buffers to all zeroes",
2541 .category = FIO_OPT_C_IO,
2542 .group = FIO_OPT_G_INVALID,
2545 .name = "refill_buffers",
2546 .lname = "Refill I/O buffers",
2547 .type = FIO_OPT_STR_SET,
2548 .off1 = td_var_offset(refill_buffers),
2549 .help = "Refill IO buffers on every IO submit",
2550 .category = FIO_OPT_C_IO,
2551 .group = FIO_OPT_G_INVALID,
2554 .name = "scramble_buffers",
2555 .lname = "Scramble I/O buffers",
2556 .type = FIO_OPT_BOOL,
2557 .off1 = td_var_offset(scramble_buffers),
2558 .help = "Slightly scramble buffers on every IO submit",
2560 .category = FIO_OPT_C_IO,
2561 .group = FIO_OPT_G_INVALID,
2564 .name = "buffer_compress_percentage",
2565 .lname = "Buffer compression percentage",
2566 .type = FIO_OPT_INT,
2567 .off1 = td_var_offset(compress_percentage),
2570 .help = "How compressible the buffer is (approximately)",
2572 .category = FIO_OPT_C_IO,
2573 .group = FIO_OPT_G_INVALID,
2576 .name = "buffer_compress_chunk",
2577 .lname = "Buffer compression chunk size",
2578 .type = FIO_OPT_INT,
2579 .off1 = td_var_offset(compress_chunk),
2580 .parent = "buffer_compress_percentage",
2582 .help = "Size of compressible region in buffer",
2584 .category = FIO_OPT_C_IO,
2585 .group = FIO_OPT_G_INVALID,
2588 .name = "clat_percentiles",
2589 .lname = "Completion latency percentiles",
2590 .type = FIO_OPT_BOOL,
2591 .off1 = td_var_offset(clat_percentiles),
2592 .help = "Enable the reporting of completion latency percentiles",
2594 .category = FIO_OPT_C_STAT,
2595 .group = FIO_OPT_G_INVALID,
2598 .name = "percentile_list",
2599 .lname = "Completion latency percentile list",
2600 .type = FIO_OPT_FLOAT_LIST,
2601 .off1 = td_var_offset(percentile_list),
2602 .off2 = td_var_offset(overwrite_plist),
2603 .help = "Specify a custom list of percentiles to report",
2604 .maxlen = FIO_IO_U_LIST_MAX_LEN,
2607 .category = FIO_OPT_C_STAT,
2608 .group = FIO_OPT_G_INVALID,
2611 #ifdef FIO_HAVE_DISK_UTIL
2613 .name = "disk_util",
2614 .lname = "Disk utilization",
2615 .type = FIO_OPT_BOOL,
2616 .off1 = td_var_offset(do_disk_util),
2617 .help = "Log disk utilization statistics",
2619 .category = FIO_OPT_C_STAT,
2620 .group = FIO_OPT_G_INVALID,
2624 .name = "gtod_reduce",
2625 .lname = "Reduce gettimeofday() calls",
2626 .type = FIO_OPT_BOOL,
2627 .help = "Greatly reduce number of gettimeofday() calls",
2628 .cb = str_gtod_reduce_cb,
2630 .category = FIO_OPT_C_STAT,
2631 .group = FIO_OPT_G_INVALID,
2634 .name = "disable_lat",
2635 .lname = "Disable all latency stats",
2636 .type = FIO_OPT_BOOL,
2637 .off1 = td_var_offset(disable_lat),
2638 .help = "Disable latency numbers",
2639 .parent = "gtod_reduce",
2642 .category = FIO_OPT_C_STAT,
2643 .group = FIO_OPT_G_INVALID,
2646 .name = "disable_clat",
2647 .lname = "Disable completion latency stats",
2648 .type = FIO_OPT_BOOL,
2649 .off1 = td_var_offset(disable_clat),
2650 .help = "Disable completion latency numbers",
2651 .parent = "gtod_reduce",
2654 .category = FIO_OPT_C_STAT,
2655 .group = FIO_OPT_G_INVALID,
2658 .name = "disable_slat",
2659 .lname = "Disable submission latency stats",
2660 .type = FIO_OPT_BOOL,
2661 .off1 = td_var_offset(disable_slat),
2662 .help = "Disable submission latency numbers",
2663 .parent = "gtod_reduce",
2666 .category = FIO_OPT_C_STAT,
2667 .group = FIO_OPT_G_INVALID,
2670 .name = "disable_bw_measurement",
2671 .lname = "Disable bandwidth stats",
2672 .type = FIO_OPT_BOOL,
2673 .off1 = td_var_offset(disable_bw),
2674 .help = "Disable bandwidth logging",
2675 .parent = "gtod_reduce",
2678 .category = FIO_OPT_C_STAT,
2679 .group = FIO_OPT_G_INVALID,
2683 .lname = "Dedicated gettimeofday() CPU",
2684 .type = FIO_OPT_INT,
2685 .cb = str_gtod_cpu_cb,
2686 .help = "Set up dedicated gettimeofday() thread on this CPU",
2687 .verify = gtod_cpu_verify,
2688 .category = FIO_OPT_C_GENERAL,
2689 .group = FIO_OPT_G_INVALID,
2692 .name = "continue_on_error",
2693 .lname = "Continue on error",
2694 .type = FIO_OPT_STR,
2695 .off1 = td_var_offset(continue_on_error),
2696 .help = "Continue on non-fatal errors during IO",
2698 .category = FIO_OPT_C_GENERAL,
2699 .group = FIO_OPT_G_INVALID,
2702 .oval = ERROR_TYPE_NONE,
2703 .help = "Exit when an error is encountered",
2706 .oval = ERROR_TYPE_READ,
2707 .help = "Continue on read errors only",
2710 .oval = ERROR_TYPE_WRITE,
2711 .help = "Continue on write errors only",
2714 .oval = ERROR_TYPE_READ | ERROR_TYPE_WRITE,
2715 .help = "Continue on any IO errors",
2718 .oval = ERROR_TYPE_VERIFY,
2719 .help = "Continue on verify errors only",
2722 .oval = ERROR_TYPE_ANY,
2723 .help = "Continue on all io and verify errors",
2726 .oval = ERROR_TYPE_NONE,
2727 .help = "Alias for 'none'",
2730 .oval = ERROR_TYPE_ANY,
2731 .help = "Alias for 'all'",
2738 .type = FIO_OPT_STR_STORE,
2739 .off1 = td_var_offset(profile),
2740 .help = "Select a specific builtin performance test",
2741 .category = FIO_OPT_C_GENERAL,
2742 .group = FIO_OPT_G_INVALID,
2747 .type = FIO_OPT_STR_STORE,
2748 .off1 = td_var_offset(cgroup),
2749 .help = "Add job to cgroup of this name",
2750 .category = FIO_OPT_C_GENERAL,
2751 .group = FIO_OPT_G_CGROUP,
2754 .name = "cgroup_nodelete",
2755 .lname = "Cgroup no-delete",
2756 .type = FIO_OPT_BOOL,
2757 .off1 = td_var_offset(cgroup_nodelete),
2758 .help = "Do not delete cgroups after job completion",
2761 .category = FIO_OPT_C_GENERAL,
2762 .group = FIO_OPT_G_CGROUP,
2765 .name = "cgroup_weight",
2766 .lname = "Cgroup weight",
2767 .type = FIO_OPT_INT,
2768 .off1 = td_var_offset(cgroup_weight),
2769 .help = "Use given weight for cgroup",
2773 .category = FIO_OPT_C_GENERAL,
2774 .group = FIO_OPT_G_CGROUP,
2779 .type = FIO_OPT_INT,
2780 .off1 = td_var_offset(uid),
2781 .help = "Run job with this user ID",
2782 .category = FIO_OPT_C_GENERAL,
2783 .group = FIO_OPT_G_INVALID,
2787 .lname = "Group ID",
2788 .type = FIO_OPT_INT,
2789 .off1 = td_var_offset(gid),
2790 .help = "Run job with this group ID",
2791 .category = FIO_OPT_C_GENERAL,
2792 .group = FIO_OPT_G_INVALID,
2797 .type = FIO_OPT_INT,
2798 .off1 = td_var_offset(kb_base),
2799 .verify = kb_base_verify,
2802 .help = "How many bytes per KB for reporting (1000 or 1024)",
2803 .category = FIO_OPT_C_GENERAL,
2804 .group = FIO_OPT_G_INVALID,
2808 .lname = "I/O flow ID",
2809 .type = FIO_OPT_INT,
2810 .off1 = td_var_offset(flow_id),
2811 .help = "The flow index ID to use",
2813 .category = FIO_OPT_C_IO,
2814 .group = FIO_OPT_G_IO_FLOW,
2818 .lname = "I/O flow weight",
2819 .type = FIO_OPT_INT,
2820 .off1 = td_var_offset(flow),
2821 .help = "Weight for flow control of this job",
2822 .parent = "flow_id",
2825 .category = FIO_OPT_C_IO,
2826 .group = FIO_OPT_G_IO_FLOW,
2829 .name = "flow_watermark",
2830 .lname = "I/O flow watermark",
2831 .type = FIO_OPT_INT,
2832 .off1 = td_var_offset(flow_watermark),
2833 .help = "High watermark for flow control. This option"
2834 " should be set to the same value for all threads"
2835 " with non-zero flow.",
2836 .parent = "flow_id",
2839 .category = FIO_OPT_C_IO,
2840 .group = FIO_OPT_G_IO_FLOW,
2843 .name = "flow_sleep",
2844 .lname = "I/O flow sleep",
2845 .type = FIO_OPT_INT,
2846 .off1 = td_var_offset(flow_sleep),
2847 .help = "How many microseconds to sleep after being held"
2848 " back by the flow control mechanism",
2849 .parent = "flow_id",
2852 .category = FIO_OPT_C_IO,
2853 .group = FIO_OPT_G_IO_FLOW,
2860 static void add_to_lopt(struct option *lopt, struct fio_option *o,
2861 const char *name, int val)
2863 lopt->name = (char *) name;
2865 if (o->type == FIO_OPT_STR_SET)
2866 lopt->has_arg = no_argument;
2868 lopt->has_arg = required_argument;
2871 static void options_to_lopts(struct fio_option *opts,
2872 struct option *long_options,
2873 int i, int option_type)
2875 struct fio_option *o = &opts[0];
2877 add_to_lopt(&long_options[i], o, o->name, option_type);
2880 add_to_lopt(&long_options[i], o, o->alias, option_type);
2885 assert(i < FIO_NR_OPTIONS);
2889 void fio_options_set_ioengine_opts(struct option *long_options,
2890 struct thread_data *td)
2895 while (long_options[i].name) {
2896 if (long_options[i].val == FIO_GETOPT_IOENGINE) {
2897 memset(&long_options[i], 0, sizeof(*long_options));
2904 * Just clear out the prior ioengine options.
2909 options_to_lopts(td->io_ops->options, long_options, i,
2910 FIO_GETOPT_IOENGINE);
2913 void fio_options_dup_and_init(struct option *long_options)
2917 options_init(fio_options);
2920 while (long_options[i].name)
2923 options_to_lopts(fio_options, long_options, i, FIO_GETOPT_JOB);
2926 struct fio_keyword {
2932 static struct fio_keyword fio_keywords[] = {
2934 .word = "$pagesize",
2935 .desc = "Page size in the system",
2938 .word = "$mb_memory",
2939 .desc = "Megabytes of memory online",
2943 .desc = "Number of CPUs online in the system",
2950 void fio_keywords_init(void)
2952 unsigned long long mb_memory;
2956 sprintf(buf, "%lu", page_size);
2957 fio_keywords[0].replace = strdup(buf);
2959 mb_memory = os_phys_mem() / (1024 * 1024);
2960 sprintf(buf, "%llu", mb_memory);
2961 fio_keywords[1].replace = strdup(buf);
2964 sprintf(buf, "%lu", l);
2965 fio_keywords[2].replace = strdup(buf);
2970 static char *bc_calc(char *str)
2972 char buf[128], *tmp;
2977 * No math, just return string
2979 if ((!strchr(str, '+') && !strchr(str, '-') && !strchr(str, '*') &&
2980 !strchr(str, '/')) || strchr(str, '\''))
2984 * Split option from value, we only need to calculate the value
2986 tmp = strchr(str, '=');
2993 * Prevent buffer overflows; such a case isn't reasonable anyway
2995 if (strlen(str) >= 128 || strlen(tmp) > 100)
2998 sprintf(buf, "which %s > /dev/null", BC_APP);
3000 log_err("fio: bc is needed for performing math\n");
3004 sprintf(buf, "echo '%s' | %s", tmp, BC_APP);
3005 f = popen(buf, "r");
3010 ret = fread(&buf[tmp - str], 1, 128 - (tmp - str), f);
3016 buf[(tmp - str) + ret - 1] = '\0';
3017 memcpy(buf, str, tmp - str);
3023 * Return a copy of the input string with substrings of the form ${VARNAME}
3024 * substituted with the value of the environment variable VARNAME. The
3025 * substitution always occurs, even if VARNAME is empty or the corresponding
3026 * environment variable undefined.
3028 static char *option_dup_subs(const char *opt)
3030 char out[OPT_LEN_MAX+1];
3031 char in[OPT_LEN_MAX+1];
3034 char *ch1, *ch2, *env;
3035 ssize_t nchr = OPT_LEN_MAX;
3038 if (strlen(opt) + 1 > OPT_LEN_MAX) {
3039 log_err("OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
3043 in[OPT_LEN_MAX] = '\0';
3044 strncpy(in, opt, OPT_LEN_MAX);
3046 while (*inptr && nchr > 0) {
3047 if (inptr[0] == '$' && inptr[1] == '{') {
3048 ch2 = strchr(inptr, '}');
3049 if (ch2 && inptr+1 < ch2) {
3056 envlen = strlen(env);
3057 if (envlen <= nchr) {
3058 memcpy(outptr, env, envlen);
3068 *outptr++ = *inptr++;
3077 * Look for reserved variable names and replace them with real values
3079 static char *fio_keyword_replace(char *opt)
3085 for (i = 0; fio_keywords[i].word != NULL; i++) {
3086 struct fio_keyword *kw = &fio_keywords[i];
3088 while ((s = strstr(opt, kw->word)) != NULL) {
3089 char *new = malloc(strlen(opt) + 1);
3095 * Copy part of the string before the keyword and
3096 * sprintf() the replacement after it.
3098 memcpy(new, opt, olen);
3099 len = sprintf(new + olen, "%s", kw->replace);
3102 * If there's more in the original string, copy that
3105 opt += strlen(kw->word) + olen;
3107 memcpy(new + olen + len, opt, opt - o_org - 1);
3110 * replace opt and free the old opt
3120 * Check for potential math and invoke bc, if possible
3128 static char **dup_and_sub_options(char **opts, int num_opts)
3131 char **opts_copy = malloc(num_opts * sizeof(*opts));
3132 for (i = 0; i < num_opts; i++) {
3133 opts_copy[i] = option_dup_subs(opts[i]);
3136 opts_copy[i] = fio_keyword_replace(opts_copy[i]);
3141 int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
3143 int i, ret, unknown;
3146 sort_options(opts, fio_options, num_opts);
3147 opts_copy = dup_and_sub_options(opts, num_opts);
3149 for (ret = 0, i = 0, unknown = 0; i < num_opts; i++) {
3150 struct fio_option *o;
3151 int newret = parse_option(opts_copy[i], opts[i], fio_options,
3160 opts_copy[i] = NULL;
3167 ret |= ioengine_load(td);
3169 sort_options(opts_copy, td->io_ops->options, num_opts);
3172 for (i = 0; i < num_opts; i++) {
3173 struct fio_option *o = NULL;
3179 newret = parse_option(opts_copy[i], opts[i],
3180 td->io_ops->options, &o,
3185 log_err("Bad option <%s>\n", opts[i]);
3188 opts_copy[i] = NULL;
3196 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
3198 return parse_cmd_option(opt, val, fio_options, td);
3201 int fio_cmd_ioengine_option_parse(struct thread_data *td, const char *opt,
3204 return parse_cmd_option(opt, val, td->io_ops->options, td);
3207 void fio_fill_default_options(struct thread_data *td)
3209 fill_default_options(td, fio_options);
3212 int fio_show_option_help(const char *opt)
3214 return show_cmd_help(fio_options, opt);
3217 void options_mem_dupe(void *data, struct fio_option *options)
3219 struct fio_option *o;
3222 for (o = &options[0]; o->name; o++) {
3223 if (o->type != FIO_OPT_STR_STORE)
3226 ptr = td_var(data, o->off1);
3228 *ptr = strdup(*ptr);
3233 * dupe FIO_OPT_STR_STORE options
3235 void fio_options_mem_dupe(struct thread_data *td)
3237 options_mem_dupe(&td->o, fio_options);
3239 if (td->eo && td->io_ops) {
3240 void *oldeo = td->eo;
3242 td->eo = malloc(td->io_ops->option_struct_size);
3243 memcpy(td->eo, oldeo, td->io_ops->option_struct_size);
3244 options_mem_dupe(td->eo, td->io_ops->options);
3248 unsigned int fio_get_kb_base(void *data)
3250 struct thread_data *td = data;
3251 unsigned int kb_base = 0;
3254 kb_base = td->o.kb_base;
3261 int add_option(struct fio_option *o)
3263 struct fio_option *__o;
3272 memcpy(&fio_options[opt_index], o, sizeof(*o));
3276 void invalidate_profile_options(const char *prof_name)
3278 struct fio_option *o;
3282 if (o->prof_name && !strcmp(o->prof_name, prof_name)) {
3283 o->type = FIO_OPT_INVALID;
3284 o->prof_name = NULL;
3290 void add_opt_posval(const char *optname, const char *ival, const char *help)
3292 struct fio_option *o;
3295 o = find_option(fio_options, optname);
3299 for (i = 0; i < PARSE_MAX_VP; i++) {
3300 if (o->posval[i].ival)
3303 o->posval[i].ival = ival;
3304 o->posval[i].help = help;
3309 void del_opt_posval(const char *optname, const char *ival)
3311 struct fio_option *o;
3314 o = find_option(fio_options, optname);
3318 for (i = 0; i < PARSE_MAX_VP; i++) {
3319 if (!o->posval[i].ival)
3321 if (strcmp(o->posval[i].ival, ival))
3324 o->posval[i].ival = NULL;
3325 o->posval[i].help = NULL;
3329 void fio_options_free(struct thread_data *td)
3331 options_free(fio_options, td);
3332 if (td->eo && td->io_ops && td->io_ops->options) {
3333 options_free(td->io_ops->options, td->eo);