10 #include <sys/types.h>
18 #define td_var_offset(var) ((size_t) &((struct thread_options *)0)->var)
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 bs_cmp(const void *p1, const void *p2)
38 const struct bssplit *bsp1 = p1;
39 const struct bssplit *bsp2 = p2;
41 return bsp1->perc < bsp2->perc;
44 static int bssplit_ddir(struct thread_data *td, int ddir, char *str)
46 struct bssplit *bssplit;
47 unsigned int i, perc, perc_missing;
48 unsigned int max_bs, min_bs;
52 td->o.bssplit_nr[ddir] = 4;
53 bssplit = malloc(4 * sizeof(struct bssplit));
58 while ((fname = strsep(&str, ":")) != NULL) {
65 * grow struct buffer, if needed
67 if (i == td->o.bssplit_nr[ddir]) {
68 td->o.bssplit_nr[ddir] <<= 1;
69 bssplit = realloc(bssplit, td->o.bssplit_nr[ddir]
70 * sizeof(struct bssplit));
73 perc_str = strstr(fname, "/");
77 perc = atoi(perc_str);
85 if (str_to_decimal(fname, &val, 1)) {
86 log_err("fio: bssplit conversion failed\n");
97 bssplit[i].perc = perc;
101 td->o.bssplit_nr[ddir] = i;
104 * Now check if the percentages add up, and how much is missing
106 perc = perc_missing = 0;
107 for (i = 0; i < td->o.bssplit_nr[ddir]; i++) {
108 struct bssplit *bsp = &bssplit[i];
110 if (bsp->perc == (unsigned char) -1)
117 log_err("fio: bssplit percentages add to more than 100%%\n");
122 * If values didn't have a percentage set, divide the remains between
126 for (i = 0; i < td->o.bssplit_nr[ddir]; i++) {
127 struct bssplit *bsp = &bssplit[i];
129 if (bsp->perc == (unsigned char) -1)
130 bsp->perc = (100 - perc) / perc_missing;
134 td->o.min_bs[ddir] = min_bs;
135 td->o.max_bs[ddir] = max_bs;
138 * now sort based on percentages, for ease of lookup
140 qsort(bssplit, td->o.bssplit_nr[ddir], sizeof(struct bssplit), bs_cmp);
141 td->o.bssplit[ddir] = bssplit;
146 static int str_bssplit_cb(void *data, const char *input)
148 struct thread_data *td = data;
149 char *str, *p, *odir;
152 p = str = strdup(input);
154 strip_blank_front(&str);
155 strip_blank_end(str);
157 odir = strchr(str, ',');
159 ret = bssplit_ddir(td, DDIR_WRITE, odir + 1);
162 ret = bssplit_ddir(td, DDIR_READ, str);
169 ret = bssplit_ddir(td, DDIR_READ, str);
171 ret = bssplit_ddir(td, DDIR_WRITE, op);
180 static int str_rw_cb(void *data, const char *str)
182 struct thread_data *td = data;
183 char *nr = get_opt_postfix(str);
187 td->o.ddir_nr = atoi(nr);
194 static int str_mem_cb(void *data, const char *mem)
196 struct thread_data *td = data;
198 if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP) {
199 td->mmapfile = get_opt_postfix(mem);
200 if (td->o.mem_type == MEM_MMAPHUGE && !td->mmapfile) {
201 log_err("fio: mmaphuge:/path/to/file\n");
209 static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
215 static int str_rwmix_read_cb(void *data, unsigned int *val)
217 struct thread_data *td = data;
219 td->o.rwmix[DDIR_READ] = *val;
220 td->o.rwmix[DDIR_WRITE] = 100 - *val;
224 static int str_rwmix_write_cb(void *data, unsigned int *val)
226 struct thread_data *td = data;
228 td->o.rwmix[DDIR_WRITE] = *val;
229 td->o.rwmix[DDIR_READ] = 100 - *val;
233 #ifdef FIO_HAVE_IOPRIO
234 static int str_prioclass_cb(void *data, unsigned int *val)
236 struct thread_data *td = data;
240 * mask off old class bits, str_prio_cb() may have set a default class
242 mask = (1 << IOPRIO_CLASS_SHIFT) - 1;
245 td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
250 static int str_prio_cb(void *data, unsigned int *val)
252 struct thread_data *td = data;
257 * If no class is set, assume BE
259 if ((td->ioprio >> IOPRIO_CLASS_SHIFT) == 0)
260 td->ioprio |= IOPRIO_CLASS_BE << IOPRIO_CLASS_SHIFT;
267 static int str_exitall_cb(void)
269 exitall_on_terminate = 1;
273 #ifdef FIO_HAVE_CPU_AFFINITY
274 static int str_cpumask_cb(void *data, unsigned int *val)
276 struct thread_data *td = data;
281 ret = fio_cpuset_init(&td->o.cpumask);
283 log_err("fio: cpuset_init failed\n");
284 td_verror(td, ret, "fio_cpuset_init");
288 max_cpu = sysconf(_SC_NPROCESSORS_ONLN);
290 for (i = 0; i < sizeof(int) * 8; i++) {
291 if ((1 << i) & *val) {
293 log_err("fio: CPU %d too large (max=%ld)\n", i,
297 dprint(FD_PARSE, "set cpu allowed %d\n", i);
298 fio_cpu_set(&td->o.cpumask, i);
302 td->o.cpumask_set = 1;
306 static int set_cpus_allowed(struct thread_data *td, os_cpu_mask_t *mask,
313 ret = fio_cpuset_init(mask);
315 log_err("fio: cpuset_init failed\n");
316 td_verror(td, ret, "fio_cpuset_init");
320 p = str = strdup(input);
322 strip_blank_front(&str);
323 strip_blank_end(str);
325 max_cpu = sysconf(_SC_NPROCESSORS_ONLN);
327 while ((cpu = strsep(&str, ",")) != NULL) {
336 while ((cpu2 = strsep(&str2, "-")) != NULL) {
346 while (icpu <= icpu2) {
347 if (icpu >= FIO_MAX_CPUS) {
348 log_err("fio: your OS only supports up to"
349 " %d CPUs\n", (int) FIO_MAX_CPUS);
353 if (icpu > max_cpu) {
354 log_err("fio: CPU %d too large (max=%ld)\n",
360 dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
361 fio_cpu_set(mask, icpu);
370 td->o.cpumask_set = 1;
374 static int str_cpus_allowed_cb(void *data, const char *input)
376 struct thread_data *td = data;
379 ret = set_cpus_allowed(td, &td->o.cpumask, input);
381 td->o.cpumask_set = 1;
386 static int str_verify_cpus_allowed_cb(void *data, const char *input)
388 struct thread_data *td = data;
391 ret = set_cpus_allowed(td, &td->o.verify_cpumask, input);
393 td->o.verify_cpumask_set = 1;
399 static int str_fst_cb(void *data, const char *str)
401 struct thread_data *td = data;
402 char *nr = get_opt_postfix(str);
404 td->file_service_nr = 1;
406 td->file_service_nr = atoi(nr);
413 static int check_dir(struct thread_data *td, char *fname)
415 char file[PATH_MAX], *dir;
418 if (td->o.directory) {
419 strcpy(file, td->o.directory);
424 sprintf(file + elen, "%s", fname);
431 * We can't do this on FIO_DISKLESSIO engines. The engine isn't loaded
432 * yet, so we can't do this check right here...
434 if (lstat(dir, &sb) < 0) {
437 log_err("fio: %s is not a directory\n", dir);
438 td_verror(td, ret, "lstat");
442 if (!S_ISDIR(sb.st_mode)) {
443 log_err("fio: %s is not a directory\n", dir);
452 static int str_filename_cb(void *data, const char *input)
454 struct thread_data *td = data;
455 char *fname, *str, *p;
457 p = str = strdup(input);
459 strip_blank_front(&str);
460 strip_blank_end(str);
462 if (!td->files_index)
465 while ((fname = strsep(&str, ":")) != NULL) {
468 if (check_dir(td, fname)) {
480 static int str_directory_cb(void *data, const char fio_unused *str)
482 struct thread_data *td = data;
485 if (lstat(td->o.directory, &sb) < 0) {
488 log_err("fio: %s is not a directory\n", td->o.directory);
489 td_verror(td, ret, "lstat");
492 if (!S_ISDIR(sb.st_mode)) {
493 log_err("fio: %s is not a directory\n", td->o.directory);
500 static int str_opendir_cb(void *data, const char fio_unused *str)
502 struct thread_data *td = data;
504 if (!td->files_index)
507 return add_dir_files(td, td->o.opendir);
510 static int str_verify_offset_cb(void *data, unsigned int *off)
512 struct thread_data *td = data;
514 if (*off && *off < sizeof(struct verify_header)) {
515 log_err("fio: verify_offset too small\n");
519 td->o.verify_offset = *off;
523 static int str_verify_pattern_cb(void *data, unsigned int *off)
525 struct thread_data *td = data;
530 td->o.verify_pattern_bytes = 1;
532 td->o.verify_pattern_bytes = 2;
534 td->o.verify_pattern_bytes = 3;
536 td->o.verify_pattern_bytes = 4;
538 td->o.verify_pattern = *off;
542 static int str_lockfile_cb(void *data, const char *str)
544 struct thread_data *td = data;
545 char *nr = get_opt_postfix(str);
547 td->o.lockfile_batch = 1;
549 td->o.lockfile_batch = atoi(nr);
556 static int str_write_bw_log_cb(void *data, const char *str)
558 struct thread_data *td = data;
561 td->o.bw_log_file = strdup(str);
563 td->o.write_bw_log = 1;
567 static int str_write_lat_log_cb(void *data, const char *str)
569 struct thread_data *td = data;
572 td->o.lat_log_file = strdup(str);
574 td->o.write_lat_log = 1;
578 static int str_gtod_reduce_cb(void *data, int *il)
580 struct thread_data *td = data;
583 td->o.disable_clat = !!val;
584 td->o.disable_slat = !!val;
585 td->o.disable_bw = !!val;
587 td->tv_cache_mask = 63;
592 static int str_gtod_cpu_cb(void *data, int *il)
594 struct thread_data *td = data;
597 td->o.gtod_cpu = val;
598 td->o.gtod_offload = 1;
602 static int rw_verify(struct fio_option *o, void *data)
604 struct thread_data *td = data;
606 if (read_only && td_write(td)) {
607 log_err("fio: job <%s> has write bit set, but fio is in"
608 " read-only mode\n", td->o.name);
615 static int gtod_cpu_verify(struct fio_option *o, void *data)
617 #ifndef FIO_HAVE_CPU_AFFINITY
618 struct thread_data *td = data;
620 if (td->o.gtod_cpu) {
621 log_err("fio: platform must support CPU affinity for"
622 "gettimeofday() offloading\n");
630 static int kb_base_verify(struct fio_option *o, void *data)
632 struct thread_data *td = data;
634 if (td->o.kb_base != 1024 && td->o.kb_base != 1000) {
635 log_err("fio: kb_base set to nonsensical value: %u\n",
643 #define __stringify_1(x) #x
644 #define __stringify(x) __stringify_1(x)
647 * Map of job/command line options
649 static struct fio_option options[] = {
651 .name = "description",
652 .type = FIO_OPT_STR_STORE,
653 .off1 = td_var_offset(description),
654 .help = "Text job description",
658 .type = FIO_OPT_STR_STORE,
659 .off1 = td_var_offset(name),
660 .help = "Name of this job",
664 .type = FIO_OPT_STR_STORE,
665 .off1 = td_var_offset(directory),
666 .cb = str_directory_cb,
667 .help = "Directory to store files in",
671 .type = FIO_OPT_STR_STORE,
672 .off1 = td_var_offset(filename),
673 .cb = str_filename_cb,
674 .prio = -1, /* must come after "directory" */
675 .help = "File(s) to use for the workload",
680 .off1 = td_var_offset(kb_base),
681 .help = "How many bytes per KB for reporting (1000 or 1024)",
682 .verify = kb_base_verify,
688 .cb = str_lockfile_cb,
689 .off1 = td_var_offset(file_lock_mode),
690 .help = "Lock file when doing IO to it",
691 .parent = "filename",
695 .oval = FILE_LOCK_NONE,
696 .help = "No file locking",
698 { .ival = "exclusive",
699 .oval = FILE_LOCK_EXCLUSIVE,
700 .help = "Exclusive file lock",
704 .oval = FILE_LOCK_READWRITE,
705 .help = "Read vs write lock",
711 .type = FIO_OPT_STR_STORE,
712 .off1 = td_var_offset(opendir),
713 .cb = str_opendir_cb,
714 .help = "Recursively add files from this directory and down",
718 .alias = "readwrite",
721 .off1 = td_var_offset(td_ddir),
722 .help = "IO direction",
727 .oval = TD_DDIR_READ,
728 .help = "Sequential read",
731 .oval = TD_DDIR_WRITE,
732 .help = "Sequential write",
734 { .ival = "randread",
735 .oval = TD_DDIR_RANDREAD,
736 .help = "Random read",
738 { .ival = "randwrite",
739 .oval = TD_DDIR_RANDWRITE,
740 .help = "Random write",
744 .help = "Sequential read and write mix",
747 .oval = TD_DDIR_RANDRW,
748 .help = "Random read and write mix"
754 .type = FIO_OPT_STR_STORE,
755 .off1 = td_var_offset(ioengine),
756 .help = "IO engine to use",
760 .help = "Use read/write",
763 .help = "Use pread/pwrite",
766 .help = "Use readv/writev",
768 #ifdef FIO_HAVE_LIBAIO
770 .help = "Linux native asynchronous IO",
773 #ifdef FIO_HAVE_POSIXAIO
774 { .ival = "posixaio",
775 .help = "POSIX asynchronous IO",
778 #ifdef FIO_HAVE_SOLARISAIO
779 { .ival = "solarisaio",
780 .help = "Solaris native asynchronous IO",
784 .help = "Memory mapped IO",
786 #ifdef FIO_HAVE_SPLICE
788 .help = "splice/vmsplice based IO",
790 { .ival = "netsplice",
791 .help = "splice/vmsplice to/from the network",
796 .help = "SCSI generic v3 IO",
800 .help = "Testing engine (no data transfer)",
803 .help = "Network IO",
805 #ifdef FIO_HAVE_SYSLET
806 { .ival = "syslet-rw",
807 .help = "syslet enabled async pread/pwrite IO",
811 .help = "CPU cycler burner engine",
813 #ifdef FIO_HAVE_GUASI
815 .help = "GUASI IO engine",
818 { .ival = "external",
819 .help = "Load external engine (append name)",
826 .off1 = td_var_offset(iodepth),
827 .help = "Amount of IO buffers to keep in flight",
832 .name = "iodepth_batch",
833 .alias = "iodepth_batch_submit",
835 .off1 = td_var_offset(iodepth_batch),
836 .help = "Number of IO buffers to submit in one go",
842 .name = "iodepth_batch_complete",
844 .off1 = td_var_offset(iodepth_batch_complete),
845 .help = "Number of IO buffers to retrieve in one go",
851 .name = "iodepth_low",
853 .off1 = td_var_offset(iodepth_low),
854 .help = "Low water mark for queuing depth",
859 .type = FIO_OPT_STR_VAL,
860 .off1 = td_var_offset(size),
862 .help = "Total size of device or files",
865 .name = "fill_device",
866 .type = FIO_OPT_BOOL,
867 .off1 = td_var_offset(fill_device),
868 .help = "Write until an ENOSPC error occurs",
873 .type = FIO_OPT_STR_VAL,
874 .off1 = td_var_offset(file_size_low),
875 .off2 = td_var_offset(file_size_high),
877 .help = "Size of individual files",
881 .alias = "fileoffset",
882 .type = FIO_OPT_STR_VAL,
883 .off1 = td_var_offset(start_offset),
884 .help = "Start IO from this offset",
889 .alias = "blocksize",
891 .off1 = td_var_offset(bs[DDIR_READ]),
892 .off2 = td_var_offset(bs[DDIR_WRITE]),
894 .help = "Block size unit",
900 .alias = "blockalign",
902 .off1 = td_var_offset(ba[DDIR_READ]),
903 .off2 = td_var_offset(ba[DDIR_WRITE]),
905 .help = "IO block offset alignment",
910 .alias = "blocksize_range",
911 .type = FIO_OPT_RANGE,
912 .off1 = td_var_offset(min_bs[DDIR_READ]),
913 .off2 = td_var_offset(max_bs[DDIR_READ]),
914 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
915 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
917 .help = "Set block size range (in more detail than bs)",
923 .cb = str_bssplit_cb,
924 .help = "Set a specific mix of block sizes",
928 .name = "bs_unaligned",
929 .alias = "blocksize_unaligned",
930 .type = FIO_OPT_STR_SET,
931 .off1 = td_var_offset(bs_unaligned),
932 .help = "Don't sector align IO buffer sizes",
936 .name = "randrepeat",
937 .type = FIO_OPT_BOOL,
938 .off1 = td_var_offset(rand_repeatable),
939 .help = "Use repeatable random IO pattern",
944 .name = "norandommap",
945 .type = FIO_OPT_STR_SET,
946 .off1 = td_var_offset(norandommap),
947 .help = "Accept potential duplicate random blocks",
951 .name = "softrandommap",
952 .type = FIO_OPT_BOOL,
953 .off1 = td_var_offset(softrandommap),
954 .help = "Set norandommap if randommap allocation fails",
955 .parent = "norandommap",
961 .off1 = td_var_offset(nr_files),
962 .help = "Split job workload between this number of files",
968 .off1 = td_var_offset(open_files),
969 .help = "Number of files to keep open at the same time",
972 .name = "file_service_type",
975 .off1 = td_var_offset(file_service_type),
976 .help = "How to select which file to service next",
980 .oval = FIO_FSERVICE_RANDOM,
981 .help = "Choose a file at random",
983 { .ival = "roundrobin",
984 .oval = FIO_FSERVICE_RR,
985 .help = "Round robin select files",
987 { .ival = "sequential",
988 .oval = FIO_FSERVICE_SEQ,
989 .help = "Finish one file before moving to the next",
995 .name = "fadvise_hint",
996 .type = FIO_OPT_BOOL,
997 .off1 = td_var_offset(fadvise_hint),
998 .help = "Use fadvise() to advise the kernel on IO pattern",
1003 .type = FIO_OPT_INT,
1004 .off1 = td_var_offset(fsync_blocks),
1005 .help = "Issue fsync for writes every given number of blocks",
1009 .name = "fdatasync",
1010 .type = FIO_OPT_INT,
1011 .off1 = td_var_offset(fdatasync_blocks),
1012 .help = "Issue fdatasync for writes every given number of blocks",
1017 .type = FIO_OPT_BOOL,
1018 .off1 = td_var_offset(odirect),
1019 .help = "Use O_DIRECT IO (negates buffered)",
1024 .type = FIO_OPT_BOOL,
1025 .off1 = td_var_offset(odirect),
1027 .help = "Use buffered IO (negates direct)",
1031 .name = "overwrite",
1032 .type = FIO_OPT_BOOL,
1033 .off1 = td_var_offset(overwrite),
1034 .help = "When writing, set whether to overwrite current data",
1039 .type = FIO_OPT_INT,
1040 .off1 = td_var_offset(loops),
1041 .help = "Number of times to run the job",
1046 .type = FIO_OPT_INT,
1047 .off1 = td_var_offset(numjobs),
1048 .help = "Duplicate this job this many times",
1052 .name = "startdelay",
1053 .type = FIO_OPT_INT,
1054 .off1 = td_var_offset(start_delay),
1055 .help = "Only start job when this period has passed",
1061 .type = FIO_OPT_STR_VAL_TIME,
1062 .off1 = td_var_offset(timeout),
1063 .help = "Stop workload when this amount of time has passed",
1067 .name = "time_based",
1068 .type = FIO_OPT_STR_SET,
1069 .off1 = td_var_offset(time_based),
1070 .help = "Keep running until runtime/timeout is met",
1073 .name = "ramp_time",
1074 .type = FIO_OPT_STR_VAL_TIME,
1075 .off1 = td_var_offset(ramp_time),
1076 .help = "Ramp up time before measuring performance",
1081 .type = FIO_OPT_STR,
1083 .off1 = td_var_offset(mem_type),
1084 .help = "Backing type for IO buffers",
1089 .help = "Use malloc(3) for IO buffers",
1093 .help = "Use shared memory segments for IO buffers",
1095 #ifdef FIO_HAVE_HUGETLB
1096 { .ival = "shmhuge",
1097 .oval = MEM_SHMHUGE,
1098 .help = "Like shm, but use huge pages",
1103 .help = "Use mmap(2) (file or anon) for IO buffers",
1105 #ifdef FIO_HAVE_HUGETLB
1106 { .ival = "mmaphuge",
1107 .oval = MEM_MMAPHUGE,
1108 .help = "Like mmap, but use huge pages",
1114 .name = "iomem_align",
1115 .alias = "mem_align",
1116 .type = FIO_OPT_INT,
1117 .off1 = td_var_offset(mem_align),
1119 .help = "IO memory buffer offset alignment",
1125 .type = FIO_OPT_STR,
1126 .off1 = td_var_offset(verify),
1127 .help = "Verify data written",
1131 .oval = VERIFY_NONE,
1132 .help = "Don't do IO verification",
1136 .help = "Use md5 checksums for verification",
1139 .oval = VERIFY_CRC64,
1140 .help = "Use crc64 checksums for verification",
1143 .oval = VERIFY_CRC32,
1144 .help = "Use crc32 checksums for verification",
1146 { .ival = "crc32c-intel",
1147 .oval = VERIFY_CRC32C_INTEL,
1148 .help = "Use hw crc32c checksums for verification",
1151 .oval = VERIFY_CRC32C,
1152 .help = "Use crc32c checksums for verification",
1155 .oval = VERIFY_CRC16,
1156 .help = "Use crc16 checksums for verification",
1159 .oval = VERIFY_CRC7,
1160 .help = "Use crc7 checksums for verification",
1163 .oval = VERIFY_SHA256,
1164 .help = "Use sha256 checksums for verification",
1167 .oval = VERIFY_SHA512,
1168 .help = "Use sha512 checksums for verification",
1171 .oval = VERIFY_META,
1172 .help = "Use io information",
1176 .oval = VERIFY_NULL,
1177 .help = "Pretend to verify",
1182 .name = "do_verify",
1183 .type = FIO_OPT_BOOL,
1184 .off1 = td_var_offset(do_verify),
1185 .help = "Run verification stage after write",
1190 .name = "verifysort",
1191 .type = FIO_OPT_BOOL,
1192 .off1 = td_var_offset(verifysort),
1193 .help = "Sort written verify blocks for read back",
1198 .name = "verify_interval",
1199 .type = FIO_OPT_INT,
1200 .off1 = td_var_offset(verify_interval),
1201 .minval = 2 * sizeof(struct verify_header),
1202 .help = "Store verify buffer header every N bytes",
1206 .name = "verify_offset",
1207 .type = FIO_OPT_INT,
1208 .help = "Offset verify header location by N bytes",
1210 .cb = str_verify_offset_cb,
1214 .name = "verify_pattern",
1215 .type = FIO_OPT_INT,
1216 .cb = str_verify_pattern_cb,
1217 .help = "Fill pattern for IO buffers",
1221 .name = "verify_fatal",
1222 .type = FIO_OPT_BOOL,
1223 .off1 = td_var_offset(verify_fatal),
1225 .help = "Exit on a single verify failure, don't continue",
1229 .name = "verify_async",
1230 .type = FIO_OPT_INT,
1231 .off1 = td_var_offset(verify_async),
1233 .help = "Number of async verifier threads to use",
1236 #ifdef FIO_HAVE_CPU_AFFINITY
1238 .name = "verify_async_cpus",
1239 .type = FIO_OPT_STR,
1240 .cb = str_verify_cpus_allowed_cb,
1241 .help = "Set CPUs allowed for async verify threads",
1242 .parent = "verify_async",
1246 .name = "write_iolog",
1247 .type = FIO_OPT_STR_STORE,
1248 .off1 = td_var_offset(write_iolog_file),
1249 .help = "Store IO pattern to file",
1252 .name = "read_iolog",
1253 .type = FIO_OPT_STR_STORE,
1254 .off1 = td_var_offset(read_iolog_file),
1255 .help = "Playback IO pattern from file",
1258 .name = "exec_prerun",
1259 .type = FIO_OPT_STR_STORE,
1260 .off1 = td_var_offset(exec_prerun),
1261 .help = "Execute this file prior to running job",
1264 .name = "exec_postrun",
1265 .type = FIO_OPT_STR_STORE,
1266 .off1 = td_var_offset(exec_postrun),
1267 .help = "Execute this file after running job",
1269 #ifdef FIO_HAVE_IOSCHED_SWITCH
1271 .name = "ioscheduler",
1272 .type = FIO_OPT_STR_STORE,
1273 .off1 = td_var_offset(ioscheduler),
1274 .help = "Use this IO scheduler on the backing device",
1279 .type = FIO_OPT_STR_VAL,
1280 .off1 = td_var_offset(zone_size),
1281 .help = "Give size of an IO zone",
1286 .type = FIO_OPT_STR_VAL,
1287 .off1 = td_var_offset(zone_skip),
1288 .help = "Space between IO zones",
1293 .type = FIO_OPT_STR_VAL,
1294 .cb = str_lockmem_cb,
1295 .help = "Lock down this amount of memory",
1299 .name = "rwmixread",
1300 .type = FIO_OPT_INT,
1301 .cb = str_rwmix_read_cb,
1303 .help = "Percentage of mixed workload that is reads",
1307 .name = "rwmixwrite",
1308 .type = FIO_OPT_INT,
1309 .cb = str_rwmix_write_cb,
1311 .help = "Percentage of mixed workload that is writes",
1315 .name = "rwmixcycle",
1316 .type = FIO_OPT_DEPRECATED,
1320 .type = FIO_OPT_INT,
1321 .off1 = td_var_offset(nice),
1322 .help = "Set job CPU nice value",
1327 #ifdef FIO_HAVE_IOPRIO
1330 .type = FIO_OPT_INT,
1332 .help = "Set job IO priority value",
1337 .name = "prioclass",
1338 .type = FIO_OPT_INT,
1339 .cb = str_prioclass_cb,
1340 .help = "Set job IO priority class",
1346 .name = "thinktime",
1347 .type = FIO_OPT_INT,
1348 .off1 = td_var_offset(thinktime),
1349 .help = "Idle time between IO buffers (usec)",
1353 .name = "thinktime_spin",
1354 .type = FIO_OPT_INT,
1355 .off1 = td_var_offset(thinktime_spin),
1356 .help = "Start think time by spinning this amount (usec)",
1358 .parent = "thinktime",
1361 .name = "thinktime_blocks",
1362 .type = FIO_OPT_INT,
1363 .off1 = td_var_offset(thinktime_blocks),
1364 .help = "IO buffer period between 'thinktime'",
1366 .parent = "thinktime",
1370 .type = FIO_OPT_INT,
1371 .off1 = td_var_offset(rate[0]),
1372 .off2 = td_var_offset(rate[1]),
1373 .help = "Set bandwidth rate",
1377 .type = FIO_OPT_INT,
1378 .off1 = td_var_offset(ratemin[0]),
1379 .off2 = td_var_offset(ratemin[1]),
1380 .help = "Job must meet this rate or it will be shutdown",
1384 .name = "rate_iops",
1385 .type = FIO_OPT_INT,
1386 .off1 = td_var_offset(rate_iops[0]),
1387 .off2 = td_var_offset(rate_iops[1]),
1388 .help = "Limit IO used to this number of IO operations/sec",
1391 .name = "rate_iops_min",
1392 .type = FIO_OPT_INT,
1393 .off1 = td_var_offset(rate_iops_min[0]),
1394 .off2 = td_var_offset(rate_iops_min[1]),
1395 .help = "Job must meet this rate or it will be shutdown",
1396 .parent = "rate_iops",
1399 .name = "ratecycle",
1400 .type = FIO_OPT_INT,
1401 .off1 = td_var_offset(ratecycle),
1402 .help = "Window average for rate limits (msec)",
1407 .name = "invalidate",
1408 .type = FIO_OPT_BOOL,
1409 .off1 = td_var_offset(invalidate_cache),
1410 .help = "Invalidate buffer/page cache prior to running job",
1415 .type = FIO_OPT_BOOL,
1416 .off1 = td_var_offset(sync_io),
1417 .help = "Use O_SYNC for buffered writes",
1419 .parent = "buffered",
1422 .name = "bwavgtime",
1423 .type = FIO_OPT_INT,
1424 .off1 = td_var_offset(bw_avg_time),
1425 .help = "Time window over which to calculate bandwidth"
1430 .name = "create_serialize",
1431 .type = FIO_OPT_BOOL,
1432 .off1 = td_var_offset(create_serialize),
1433 .help = "Serialize creating of job files",
1437 .name = "create_fsync",
1438 .type = FIO_OPT_BOOL,
1439 .off1 = td_var_offset(create_fsync),
1440 .help = "Fsync file after creation",
1444 .name = "create_on_open",
1445 .type = FIO_OPT_BOOL,
1446 .off1 = td_var_offset(create_on_open),
1447 .help = "Create files when they are opened for IO",
1452 .type = FIO_OPT_BOOL,
1453 .off1 = td_var_offset(pre_read),
1454 .help = "Preread files before starting official testing",
1459 .type = FIO_OPT_INT,
1460 .off1 = td_var_offset(cpuload),
1461 .help = "Use this percentage of CPU",
1464 .name = "cpuchunks",
1465 .type = FIO_OPT_INT,
1466 .off1 = td_var_offset(cpucycle),
1467 .help = "Length of the CPU burn cycles (usecs)",
1469 .parent = "cpuload",
1471 #ifdef FIO_HAVE_CPU_AFFINITY
1474 .type = FIO_OPT_INT,
1475 .cb = str_cpumask_cb,
1476 .help = "CPU affinity mask",
1479 .name = "cpus_allowed",
1480 .type = FIO_OPT_STR,
1481 .cb = str_cpus_allowed_cb,
1482 .help = "Set CPUs allowed",
1486 .name = "end_fsync",
1487 .type = FIO_OPT_BOOL,
1488 .off1 = td_var_offset(end_fsync),
1489 .help = "Include fsync at the end of job",
1493 .name = "fsync_on_close",
1494 .type = FIO_OPT_BOOL,
1495 .off1 = td_var_offset(fsync_on_close),
1496 .help = "fsync files on close",
1501 .type = FIO_OPT_BOOL,
1502 .off1 = td_var_offset(unlink),
1503 .help = "Unlink created files after job has completed",
1508 .type = FIO_OPT_STR_SET,
1509 .cb = str_exitall_cb,
1510 .help = "Terminate all jobs when one exits",
1513 .name = "stonewall",
1514 .type = FIO_OPT_STR_SET,
1515 .off1 = td_var_offset(stonewall),
1516 .help = "Insert a hard barrier between this job and previous",
1519 .name = "new_group",
1520 .type = FIO_OPT_STR_SET,
1521 .off1 = td_var_offset(new_group),
1522 .help = "Mark the start of a new group (for reporting)",
1526 .type = FIO_OPT_STR_SET,
1527 .off1 = td_var_offset(use_thread),
1528 .help = "Use threads instead of forks",
1531 .name = "write_bw_log",
1532 .type = FIO_OPT_STR,
1533 .off1 = td_var_offset(write_bw_log),
1534 .cb = str_write_bw_log_cb,
1535 .help = "Write log of bandwidth during run",
1538 .name = "write_lat_log",
1539 .type = FIO_OPT_STR,
1540 .off1 = td_var_offset(write_lat_log),
1541 .cb = str_write_lat_log_cb,
1542 .help = "Write log of latency during run",
1545 .name = "hugepage-size",
1546 .type = FIO_OPT_INT,
1547 .off1 = td_var_offset(hugepage_size),
1548 .help = "When using hugepages, specify size of each page",
1549 .def = __stringify(FIO_HUGE_PAGE),
1552 .name = "group_reporting",
1553 .type = FIO_OPT_STR_SET,
1554 .off1 = td_var_offset(group_reporting),
1555 .help = "Do reporting on a per-group basis",
1558 .name = "zero_buffers",
1559 .type = FIO_OPT_STR_SET,
1560 .off1 = td_var_offset(zero_buffers),
1561 .help = "Init IO buffers to all zeroes",
1564 .name = "refill_buffers",
1565 .type = FIO_OPT_STR_SET,
1566 .off1 = td_var_offset(refill_buffers),
1567 .help = "Refill IO buffers on every IO submit",
1569 #ifdef FIO_HAVE_DISK_UTIL
1571 .name = "disk_util",
1572 .type = FIO_OPT_BOOL,
1573 .off1 = td_var_offset(do_disk_util),
1574 .help = "Log disk utilization statistics",
1579 .name = "gtod_reduce",
1580 .type = FIO_OPT_BOOL,
1581 .help = "Greatly reduce number of gettimeofday() calls",
1582 .cb = str_gtod_reduce_cb,
1586 .name = "disable_clat",
1587 .type = FIO_OPT_BOOL,
1588 .off1 = td_var_offset(disable_clat),
1589 .help = "Disable completion latency numbers",
1590 .parent = "gtod_reduce",
1594 .name = "disable_slat",
1595 .type = FIO_OPT_BOOL,
1596 .off1 = td_var_offset(disable_slat),
1597 .help = "Disable submissionn latency numbers",
1598 .parent = "gtod_reduce",
1602 .name = "disable_bw_measurement",
1603 .type = FIO_OPT_BOOL,
1604 .off1 = td_var_offset(disable_bw),
1605 .help = "Disable bandwidth logging",
1606 .parent = "gtod_reduce",
1611 .type = FIO_OPT_INT,
1612 .cb = str_gtod_cpu_cb,
1613 .help = "Setup dedicated gettimeofday() thread on this CPU",
1614 .verify = gtod_cpu_verify,
1617 .name = "continue_on_error",
1618 .type = FIO_OPT_BOOL,
1619 .off1 = td_var_offset(continue_on_error),
1620 .help = "Continue on non-fatal errors during I/O",
1628 void fio_options_dup_and_init(struct option *long_options)
1630 struct fio_option *o;
1633 options_init(options);
1636 while (long_options[i].name)
1641 long_options[i].name = (char *) o->name;
1642 long_options[i].val = FIO_GETOPT_JOB;
1643 if (o->type == FIO_OPT_STR_SET)
1644 long_options[i].has_arg = no_argument;
1646 long_options[i].has_arg = required_argument;
1650 assert(i < FIO_NR_OPTIONS);
1654 int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
1658 sort_options(opts, options, num_opts);
1660 for (ret = 0, i = 0; i < num_opts; i++)
1661 ret |= parse_option(opts[i], options, td);
1666 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
1668 return parse_cmd_option(opt, val, options, td);
1671 void fio_fill_default_options(struct thread_data *td)
1673 fill_default_options(td, options);
1676 int fio_show_option_help(const char *opt)
1678 return show_cmd_help(options, opt);
1681 static void __options_mem(struct thread_data *td, int alloc)
1683 struct thread_options *o = &td->o;
1684 struct fio_option *opt;
1688 for (i = 0, opt = &options[0]; opt->name; i++, opt = &options[i]) {
1689 if (opt->type != FIO_OPT_STR_STORE)
1692 ptr = (void *) o + opt->off1;
1695 *ptr = strdup(*ptr);
1705 * dupe FIO_OPT_STR_STORE options
1707 void options_mem_dupe(struct thread_data *td)
1709 __options_mem(td, 1);
1712 void options_mem_free(struct thread_data fio_unused *td)
1715 __options_mem(td, 0);