10 #include <sys/types.h>
17 #define td_var_offset(var) ((size_t) &((struct thread_options *)0)->var)
20 * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
22 static char *get_opt_postfix(const char *str)
24 char *p = strstr(str, ":");
30 strip_blank_front(&p);
35 static int bs_cmp(const void *p1, const void *p2)
37 const struct bssplit *bsp1 = p1;
38 const struct bssplit *bsp2 = p2;
40 return bsp1->perc < bsp2->perc;
43 static int str_bssplit_cb(void *data, const char *input)
45 struct thread_data *td = data;
46 char *fname, *str, *p;
47 unsigned int i, perc, perc_missing;
48 unsigned int max_bs, min_bs;
51 p = str = strdup(input);
53 strip_blank_front(&str);
57 td->o.bssplit = malloc(4 * sizeof(struct bssplit));
62 while ((fname = strsep(&str, ":")) != NULL) {
69 * grow struct buffer, if needed
71 if (i == td->o.bssplit_nr) {
72 td->o.bssplit_nr <<= 1;
73 td->o.bssplit = realloc(td->o.bssplit,
75 * sizeof(struct bssplit));
78 perc_str = strstr(fname, "/");
82 perc = atoi(perc_str);
90 if (str_to_decimal(fname, &val, 1)) {
91 log_err("fio: bssplit conversion failed\n");
101 td->o.bssplit[i].bs = val;
102 td->o.bssplit[i].perc = perc;
106 td->o.bssplit_nr = i;
109 * Now check if the percentages add up, and how much is missing
111 perc = perc_missing = 0;
112 for (i = 0; i < td->o.bssplit_nr; i++) {
113 struct bssplit *bsp = &td->o.bssplit[i];
115 if (bsp->perc == (unsigned char) -1)
122 log_err("fio: bssplit percentages add to more than 100%%\n");
127 * If values didn't have a percentage set, divide the remains between
131 for (i = 0; i < td->o.bssplit_nr; i++) {
132 struct bssplit *bsp = &td->o.bssplit[i];
134 if (bsp->perc == (unsigned char) -1)
135 bsp->perc = (100 - perc) / perc_missing;
139 td->o.min_bs[DDIR_READ] = td->o.min_bs[DDIR_WRITE] = min_bs;
140 td->o.max_bs[DDIR_READ] = td->o.max_bs[DDIR_WRITE] = max_bs;
143 * now sort based on percentages, for ease of lookup
145 qsort(td->o.bssplit, td->o.bssplit_nr, sizeof(struct bssplit), bs_cmp);
151 static int str_rw_cb(void *data, const char *str)
153 struct thread_data *td = data;
154 char *nr = get_opt_postfix(str);
158 td->o.ddir_nr = atoi(nr);
165 static int str_mem_cb(void *data, const char *mem)
167 struct thread_data *td = data;
169 if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP) {
170 td->mmapfile = get_opt_postfix(mem);
171 if (td->o.mem_type == MEM_MMAPHUGE && !td->mmapfile) {
172 log_err("fio: mmaphuge:/path/to/file\n");
180 static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
186 static int str_rwmix_read_cb(void *data, unsigned int *val)
188 struct thread_data *td = data;
190 td->o.rwmix[DDIR_READ] = *val;
191 td->o.rwmix[DDIR_WRITE] = 100 - *val;
195 static int str_rwmix_write_cb(void *data, unsigned int *val)
197 struct thread_data *td = data;
199 td->o.rwmix[DDIR_WRITE] = *val;
200 td->o.rwmix[DDIR_READ] = 100 - *val;
204 #ifdef FIO_HAVE_IOPRIO
205 static int str_prioclass_cb(void *data, unsigned int *val)
207 struct thread_data *td = data;
211 * mask off old class bits, str_prio_cb() may have set a default class
213 mask = (1 << IOPRIO_CLASS_SHIFT) - 1;
216 td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
221 static int str_prio_cb(void *data, unsigned int *val)
223 struct thread_data *td = data;
228 * If no class is set, assume BE
230 if ((td->ioprio >> IOPRIO_CLASS_SHIFT) == 0)
231 td->ioprio |= IOPRIO_CLASS_BE << IOPRIO_CLASS_SHIFT;
238 static int str_exitall_cb(void)
240 exitall_on_terminate = 1;
244 #ifdef FIO_HAVE_CPU_AFFINITY
245 static int str_cpumask_cb(void *data, unsigned int *val)
247 struct thread_data *td = data;
252 ret = fio_cpuset_init(&td->o.cpumask);
254 log_err("fio: cpuset_init failed\n");
255 td_verror(td, ret, "fio_cpuset_init");
259 max_cpu = sysconf(_SC_NPROCESSORS_ONLN);
261 for (i = 0; i < sizeof(int) * 8; i++) {
262 if ((1 << i) & *val) {
264 log_err("fio: CPU %d too large (max=%ld)\n", i,
268 dprint(FD_PARSE, "set cpu allowed %d\n", i);
269 fio_cpu_set(&td->o.cpumask, i);
273 td->o.cpumask_set = 1;
277 static int str_cpus_allowed_cb(void *data, const char *input)
279 struct thread_data *td = data;
284 ret = fio_cpuset_init(&td->o.cpumask);
286 log_err("fio: cpuset_init failed\n");
287 td_verror(td, ret, "fio_cpuset_init");
291 p = str = strdup(input);
293 strip_blank_front(&str);
294 strip_blank_end(str);
296 max_cpu = sysconf(_SC_NPROCESSORS_ONLN);
298 while ((cpu = strsep(&str, ",")) != NULL) {
307 while ((cpu2 = strsep(&str2, "-")) != NULL) {
317 while (icpu <= icpu2) {
318 if (icpu >= FIO_MAX_CPUS) {
319 log_err("fio: your OS only supports up to"
320 " %d CPUs\n", (int) FIO_MAX_CPUS);
324 if (icpu > max_cpu) {
325 log_err("fio: CPU %d too large (max=%ld)\n",
331 dprint(FD_PARSE, "set cpu allowed %d\n", icpu);
332 fio_cpu_set(&td->o.cpumask, icpu);
341 td->o.cpumask_set = 1;
346 static int str_fst_cb(void *data, const char *str)
348 struct thread_data *td = data;
349 char *nr = get_opt_postfix(str);
351 td->file_service_nr = 1;
353 td->file_service_nr = atoi(nr);
360 static int check_dir(struct thread_data *td, char *fname)
362 char file[PATH_MAX], *dir;
365 if (td->o.directory) {
366 strcpy(file, td->o.directory);
371 sprintf(file + elen, "%s", fname);
378 * We can't do this on FIO_DISKLESSIO engines. The engine isn't loaded
379 * yet, so we can't do this check right here...
381 if (lstat(dir, &sb) < 0) {
384 log_err("fio: %s is not a directory\n", dir);
385 td_verror(td, ret, "lstat");
389 if (!S_ISDIR(sb.st_mode)) {
390 log_err("fio: %s is not a directory\n", dir);
399 static int str_filename_cb(void *data, const char *input)
401 struct thread_data *td = data;
402 char *fname, *str, *p;
404 p = str = strdup(input);
406 strip_blank_front(&str);
407 strip_blank_end(str);
409 if (!td->files_index)
412 while ((fname = strsep(&str, ":")) != NULL) {
415 if (check_dir(td, fname)) {
427 static int str_directory_cb(void *data, const char fio_unused *str)
429 struct thread_data *td = data;
432 if (lstat(td->o.directory, &sb) < 0) {
435 log_err("fio: %s is not a directory\n", td->o.directory);
436 td_verror(td, ret, "lstat");
439 if (!S_ISDIR(sb.st_mode)) {
440 log_err("fio: %s is not a directory\n", td->o.directory);
447 static int str_opendir_cb(void *data, const char fio_unused *str)
449 struct thread_data *td = data;
451 if (!td->files_index)
454 return add_dir_files(td, td->o.opendir);
457 static int str_verify_offset_cb(void *data, unsigned int *off)
459 struct thread_data *td = data;
461 if (*off && *off < sizeof(struct verify_header)) {
462 log_err("fio: verify_offset too small\n");
466 td->o.verify_offset = *off;
470 static int str_verify_pattern_cb(void *data, unsigned int *off)
472 struct thread_data *td = data;
477 td->o.verify_pattern_bytes = 1;
479 td->o.verify_pattern_bytes = 2;
481 td->o.verify_pattern_bytes = 3;
483 td->o.verify_pattern_bytes = 4;
485 td->o.verify_pattern = *off;
489 static int str_lockfile_cb(void *data, const char *str)
491 struct thread_data *td = data;
492 char *nr = get_opt_postfix(str);
494 td->o.lockfile_batch = 1;
496 td->o.lockfile_batch = atoi(nr);
503 static int str_write_bw_log_cb(void *data, const char *str)
505 struct thread_data *td = data;
508 td->o.bw_log_file = strdup(str);
510 td->o.write_bw_log = 1;
514 static int str_write_lat_log_cb(void *data, const char *str)
516 struct thread_data *td = data;
519 td->o.lat_log_file = strdup(str);
521 td->o.write_lat_log = 1;
525 static int str_gtod_reduce_cb(void *data, int *il)
527 struct thread_data *td = data;
530 td->o.disable_clat = !!val;
531 td->o.disable_slat = !!val;
532 td->o.disable_bw = !!val;
534 td->tv_cache_mask = 63;
539 static int str_gtod_cpu_cb(void *data, int *il)
541 struct thread_data *td = data;
544 td->o.gtod_cpu = val;
545 td->o.gtod_offload = 1;
549 #define __stringify_1(x) #x
550 #define __stringify(x) __stringify_1(x)
553 * Map of job/command line options
555 static struct fio_option options[] = {
557 .name = "description",
558 .type = FIO_OPT_STR_STORE,
559 .off1 = td_var_offset(description),
560 .help = "Text job description",
564 .type = FIO_OPT_STR_STORE,
565 .off1 = td_var_offset(name),
566 .help = "Name of this job",
570 .type = FIO_OPT_STR_STORE,
571 .off1 = td_var_offset(directory),
572 .cb = str_directory_cb,
573 .help = "Directory to store files in",
577 .type = FIO_OPT_STR_STORE,
578 .off1 = td_var_offset(filename),
579 .cb = str_filename_cb,
580 .prio = 1, /* must come before "directory" */
581 .help = "File(s) to use for the workload",
586 .cb = str_lockfile_cb,
587 .off1 = td_var_offset(file_lock_mode),
588 .help = "Lock file when doing IO to it",
589 .parent = "filename",
593 .oval = FILE_LOCK_NONE,
594 .help = "No file locking",
596 { .ival = "exclusive",
597 .oval = FILE_LOCK_EXCLUSIVE,
598 .help = "Exclusive file lock",
602 .oval = FILE_LOCK_READWRITE,
603 .help = "Read vs write lock",
609 .type = FIO_OPT_STR_STORE,
610 .off1 = td_var_offset(opendir),
611 .cb = str_opendir_cb,
612 .help = "Recursively add files from this directory and down",
616 .alias = "readwrite",
619 .off1 = td_var_offset(td_ddir),
620 .help = "IO direction",
624 .oval = TD_DDIR_READ,
625 .help = "Sequential read",
628 .oval = TD_DDIR_WRITE,
629 .help = "Sequential write",
631 { .ival = "randread",
632 .oval = TD_DDIR_RANDREAD,
633 .help = "Random read",
635 { .ival = "randwrite",
636 .oval = TD_DDIR_RANDWRITE,
637 .help = "Random write",
641 .help = "Sequential read and write mix",
644 .oval = TD_DDIR_RANDRW,
645 .help = "Random read and write mix"
651 .type = FIO_OPT_STR_STORE,
652 .off1 = td_var_offset(ioengine),
653 .help = "IO engine to use",
657 .help = "Use read/write",
660 .help = "Use pread/pwrite",
663 .help = "Use readv/writev",
665 #ifdef FIO_HAVE_LIBAIO
667 .help = "Linux native asynchronous IO",
670 #ifdef FIO_HAVE_POSIXAIO
671 { .ival = "posixaio",
672 .help = "POSIX asynchronous IO",
675 #ifdef FIO_HAVE_SOLARISAIO
676 { .ival = "solarisaio",
677 .help = "Solaris native asynchronous IO",
681 .help = "Memory mapped IO",
683 #ifdef FIO_HAVE_SPLICE
685 .help = "splice/vmsplice based IO",
687 { .ival = "netsplice",
688 .help = "splice/vmsplice to/from the network",
693 .help = "SCSI generic v3 IO",
697 .help = "Testing engine (no data transfer)",
700 .help = "Network IO",
702 #ifdef FIO_HAVE_SYSLET
703 { .ival = "syslet-rw",
704 .help = "syslet enabled async pread/pwrite IO",
708 .help = "CPU cycler burner engine",
710 #ifdef FIO_HAVE_GUASI
712 .help = "GUASI IO engine",
715 { .ival = "external",
716 .help = "Load external engine (append name)",
723 .off1 = td_var_offset(iodepth),
724 .help = "Amount of IO buffers to keep in flight",
729 .name = "iodepth_batch",
730 .alias = "iodepth_batch_submit",
732 .off1 = td_var_offset(iodepth_batch),
733 .help = "Number of IO buffers to submit in one go",
739 .name = "iodepth_batch_complete",
741 .off1 = td_var_offset(iodepth_batch_complete),
742 .help = "Number of IO buffers to retrieve in one go",
748 .name = "iodepth_low",
750 .off1 = td_var_offset(iodepth_low),
751 .help = "Low water mark for queuing depth",
756 .type = FIO_OPT_STR_VAL,
757 .off1 = td_var_offset(size),
759 .help = "Total size of device or files",
762 .name = "fill_device",
763 .type = FIO_OPT_BOOL,
764 .off1 = td_var_offset(fill_device),
765 .help = "Write until an ENOSPC error occurs",
770 .type = FIO_OPT_STR_VAL,
771 .off1 = td_var_offset(file_size_low),
772 .off2 = td_var_offset(file_size_high),
774 .help = "Size of individual files",
778 .alias = "fileoffset",
779 .type = FIO_OPT_STR_VAL,
780 .off1 = td_var_offset(start_offset),
781 .help = "Start IO from this offset",
786 .alias = "blocksize",
787 .type = FIO_OPT_STR_VAL_INT,
788 .off1 = td_var_offset(bs[DDIR_READ]),
789 .off2 = td_var_offset(bs[DDIR_WRITE]),
791 .help = "Block size unit",
797 .alias = "blocksize_range",
798 .type = FIO_OPT_RANGE,
799 .off1 = td_var_offset(min_bs[DDIR_READ]),
800 .off2 = td_var_offset(max_bs[DDIR_READ]),
801 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
802 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
804 .help = "Set block size range (in more detail than bs)",
810 .cb = str_bssplit_cb,
811 .help = "Set a specific mix of block sizes",
815 .name = "bs_unaligned",
816 .alias = "blocksize_unaligned",
817 .type = FIO_OPT_STR_SET,
818 .off1 = td_var_offset(bs_unaligned),
819 .help = "Don't sector align IO buffer sizes",
823 .name = "randrepeat",
824 .type = FIO_OPT_BOOL,
825 .off1 = td_var_offset(rand_repeatable),
826 .help = "Use repeatable random IO pattern",
831 .name = "norandommap",
832 .type = FIO_OPT_STR_SET,
833 .off1 = td_var_offset(norandommap),
834 .help = "Accept potential duplicate random blocks",
838 .name = "softrandommap",
839 .type = FIO_OPT_BOOL,
840 .off1 = td_var_offset(softrandommap),
841 .help = "Set norandommap if randommap allocation fails",
842 .parent = "norandommap",
848 .off1 = td_var_offset(nr_files),
849 .help = "Split job workload between this number of files",
855 .off1 = td_var_offset(open_files),
856 .help = "Number of files to keep open at the same time",
859 .name = "file_service_type",
862 .off1 = td_var_offset(file_service_type),
863 .help = "How to select which file to service next",
867 .oval = FIO_FSERVICE_RANDOM,
868 .help = "Choose a file at random",
870 { .ival = "roundrobin",
871 .oval = FIO_FSERVICE_RR,
872 .help = "Round robin select files",
874 { .ival = "sequential",
875 .oval = FIO_FSERVICE_SEQ,
876 .help = "Finish one file before moving to the next",
882 .name = "fadvise_hint",
883 .type = FIO_OPT_BOOL,
884 .off1 = td_var_offset(fadvise_hint),
885 .help = "Use fadvise() to advise the kernel on IO pattern",
891 .off1 = td_var_offset(fsync_blocks),
892 .help = "Issue fsync for writes every given number of blocks",
897 .type = FIO_OPT_BOOL,
898 .off1 = td_var_offset(odirect),
899 .help = "Use O_DIRECT IO (negates buffered)",
904 .type = FIO_OPT_BOOL,
905 .off1 = td_var_offset(odirect),
907 .help = "Use buffered IO (negates direct)",
912 .type = FIO_OPT_BOOL,
913 .off1 = td_var_offset(overwrite),
914 .help = "When writing, set whether to overwrite current data",
920 .off1 = td_var_offset(loops),
921 .help = "Number of times to run the job",
927 .off1 = td_var_offset(numjobs),
928 .help = "Duplicate this job this many times",
932 .name = "startdelay",
934 .off1 = td_var_offset(start_delay),
935 .help = "Only start job when this period has passed",
941 .type = FIO_OPT_STR_VAL_TIME,
942 .off1 = td_var_offset(timeout),
943 .help = "Stop workload when this amount of time has passed",
947 .name = "time_based",
948 .type = FIO_OPT_STR_SET,
949 .off1 = td_var_offset(time_based),
950 .help = "Keep running until runtime/timeout is met",
954 .type = FIO_OPT_STR_VAL_TIME,
955 .off1 = td_var_offset(ramp_time),
956 .help = "Ramp up time before measuring performance",
963 .off1 = td_var_offset(mem_type),
964 .help = "Backing type for IO buffers",
969 .help = "Use malloc(3) for IO buffers",
973 .help = "Use shared memory segments for IO buffers",
975 #ifdef FIO_HAVE_HUGETLB
978 .help = "Like shm, but use huge pages",
983 .help = "Use mmap(2) (file or anon) for IO buffers",
985 #ifdef FIO_HAVE_HUGETLB
986 { .ival = "mmaphuge",
987 .oval = MEM_MMAPHUGE,
988 .help = "Like mmap, but use huge pages",
996 .off1 = td_var_offset(verify),
997 .help = "Verify data written",
1001 .oval = VERIFY_NONE,
1002 .help = "Don't do IO verification",
1006 .help = "Use md5 checksums for verification",
1009 .oval = VERIFY_CRC64,
1010 .help = "Use crc64 checksums for verification",
1013 .oval = VERIFY_CRC32,
1014 .help = "Use crc32 checksums for verification",
1016 { .ival = "crc32c-intel",
1017 .oval = VERIFY_CRC32C_INTEL,
1018 .help = "Use hw crc32c checksums for verification",
1021 .oval = VERIFY_CRC32C,
1022 .help = "Use crc32c checksums for verification",
1025 .oval = VERIFY_CRC16,
1026 .help = "Use crc16 checksums for verification",
1029 .oval = VERIFY_CRC7,
1030 .help = "Use crc7 checksums for verification",
1033 .oval = VERIFY_SHA256,
1034 .help = "Use sha256 checksums for verification",
1037 .oval = VERIFY_SHA512,
1038 .help = "Use sha512 checksums for verification",
1041 .oval = VERIFY_META,
1042 .help = "Use io information",
1046 .oval = VERIFY_NULL,
1047 .help = "Pretend to verify",
1052 .name = "do_verify",
1053 .type = FIO_OPT_BOOL,
1054 .off1 = td_var_offset(do_verify),
1055 .help = "Run verification stage after write",
1060 .name = "verifysort",
1061 .type = FIO_OPT_BOOL,
1062 .off1 = td_var_offset(verifysort),
1063 .help = "Sort written verify blocks for read back",
1068 .name = "verify_interval",
1069 .type = FIO_OPT_STR_VAL_INT,
1070 .off1 = td_var_offset(verify_interval),
1071 .minval = 2 * sizeof(struct verify_header),
1072 .help = "Store verify buffer header every N bytes",
1076 .name = "verify_offset",
1077 .type = FIO_OPT_STR_VAL_INT,
1078 .help = "Offset verify header location by N bytes",
1080 .cb = str_verify_offset_cb,
1084 .name = "verify_pattern",
1085 .type = FIO_OPT_INT,
1086 .cb = str_verify_pattern_cb,
1087 .help = "Fill pattern for IO buffers",
1091 .name = "verify_fatal",
1092 .type = FIO_OPT_BOOL,
1093 .off1 = td_var_offset(verify_fatal),
1095 .help = "Exit on a single verify failure, don't continue",
1099 .name = "write_iolog",
1100 .type = FIO_OPT_STR_STORE,
1101 .off1 = td_var_offset(write_iolog_file),
1102 .help = "Store IO pattern to file",
1105 .name = "read_iolog",
1106 .type = FIO_OPT_STR_STORE,
1107 .off1 = td_var_offset(read_iolog_file),
1108 .help = "Playback IO pattern from file",
1111 .name = "exec_prerun",
1112 .type = FIO_OPT_STR_STORE,
1113 .off1 = td_var_offset(exec_prerun),
1114 .help = "Execute this file prior to running job",
1117 .name = "exec_postrun",
1118 .type = FIO_OPT_STR_STORE,
1119 .off1 = td_var_offset(exec_postrun),
1120 .help = "Execute this file after running job",
1122 #ifdef FIO_HAVE_IOSCHED_SWITCH
1124 .name = "ioscheduler",
1125 .type = FIO_OPT_STR_STORE,
1126 .off1 = td_var_offset(ioscheduler),
1127 .help = "Use this IO scheduler on the backing device",
1132 .type = FIO_OPT_STR_VAL,
1133 .off1 = td_var_offset(zone_size),
1134 .help = "Give size of an IO zone",
1139 .type = FIO_OPT_STR_VAL,
1140 .off1 = td_var_offset(zone_skip),
1141 .help = "Space between IO zones",
1146 .type = FIO_OPT_STR_VAL,
1147 .cb = str_lockmem_cb,
1148 .help = "Lock down this amount of memory",
1152 .name = "rwmixread",
1153 .type = FIO_OPT_INT,
1154 .cb = str_rwmix_read_cb,
1156 .help = "Percentage of mixed workload that is reads",
1160 .name = "rwmixwrite",
1161 .type = FIO_OPT_INT,
1162 .cb = str_rwmix_write_cb,
1164 .help = "Percentage of mixed workload that is writes",
1168 .name = "rwmixcycle",
1169 .type = FIO_OPT_DEPRECATED,
1173 .type = FIO_OPT_INT,
1174 .off1 = td_var_offset(nice),
1175 .help = "Set job CPU nice value",
1180 #ifdef FIO_HAVE_IOPRIO
1183 .type = FIO_OPT_INT,
1185 .help = "Set job IO priority value",
1190 .name = "prioclass",
1191 .type = FIO_OPT_INT,
1192 .cb = str_prioclass_cb,
1193 .help = "Set job IO priority class",
1199 .name = "thinktime",
1200 .type = FIO_OPT_INT,
1201 .off1 = td_var_offset(thinktime),
1202 .help = "Idle time between IO buffers (usec)",
1206 .name = "thinktime_spin",
1207 .type = FIO_OPT_INT,
1208 .off1 = td_var_offset(thinktime_spin),
1209 .help = "Start think time by spinning this amount (usec)",
1211 .parent = "thinktime",
1214 .name = "thinktime_blocks",
1215 .type = FIO_OPT_INT,
1216 .off1 = td_var_offset(thinktime_blocks),
1217 .help = "IO buffer period between 'thinktime'",
1219 .parent = "thinktime",
1223 .type = FIO_OPT_INT,
1224 .off1 = td_var_offset(rate),
1225 .help = "Set bandwidth rate",
1229 .type = FIO_OPT_INT,
1230 .off1 = td_var_offset(ratemin),
1231 .help = "Job must meet this rate or it will be shutdown",
1235 .name = "rate_iops",
1236 .type = FIO_OPT_INT,
1237 .off1 = td_var_offset(rate_iops),
1238 .help = "Limit IO used to this number of IO operations/sec",
1241 .name = "rate_iops_min",
1242 .type = FIO_OPT_INT,
1243 .off1 = td_var_offset(rate_iops_min),
1244 .help = "Job must meet this rate or it will be shutdown",
1245 .parent = "rate_iops",
1248 .name = "ratecycle",
1249 .type = FIO_OPT_INT,
1250 .off1 = td_var_offset(ratecycle),
1251 .help = "Window average for rate limits (msec)",
1256 .name = "invalidate",
1257 .type = FIO_OPT_BOOL,
1258 .off1 = td_var_offset(invalidate_cache),
1259 .help = "Invalidate buffer/page cache prior to running job",
1264 .type = FIO_OPT_BOOL,
1265 .off1 = td_var_offset(sync_io),
1266 .help = "Use O_SYNC for buffered writes",
1268 .parent = "buffered",
1271 .name = "bwavgtime",
1272 .type = FIO_OPT_INT,
1273 .off1 = td_var_offset(bw_avg_time),
1274 .help = "Time window over which to calculate bandwidth"
1279 .name = "create_serialize",
1280 .type = FIO_OPT_BOOL,
1281 .off1 = td_var_offset(create_serialize),
1282 .help = "Serialize creating of job files",
1286 .name = "create_fsync",
1287 .type = FIO_OPT_BOOL,
1288 .off1 = td_var_offset(create_fsync),
1289 .help = "Fsync file after creation",
1293 .name = "create_on_open",
1294 .type = FIO_OPT_BOOL,
1295 .off1 = td_var_offset(create_on_open),
1296 .help = "Create files when they are opened for IO",
1301 .type = FIO_OPT_INT,
1302 .off1 = td_var_offset(cpuload),
1303 .help = "Use this percentage of CPU",
1306 .name = "cpuchunks",
1307 .type = FIO_OPT_INT,
1308 .off1 = td_var_offset(cpucycle),
1309 .help = "Length of the CPU burn cycles (usecs)",
1311 .parent = "cpuload",
1313 #ifdef FIO_HAVE_CPU_AFFINITY
1316 .type = FIO_OPT_INT,
1317 .cb = str_cpumask_cb,
1318 .help = "CPU affinity mask",
1321 .name = "cpus_allowed",
1322 .type = FIO_OPT_STR,
1323 .cb = str_cpus_allowed_cb,
1324 .help = "Set CPUs allowed",
1328 .name = "end_fsync",
1329 .type = FIO_OPT_BOOL,
1330 .off1 = td_var_offset(end_fsync),
1331 .help = "Include fsync at the end of job",
1335 .name = "fsync_on_close",
1336 .type = FIO_OPT_BOOL,
1337 .off1 = td_var_offset(fsync_on_close),
1338 .help = "fsync files on close",
1343 .type = FIO_OPT_BOOL,
1344 .off1 = td_var_offset(unlink),
1345 .help = "Unlink created files after job has completed",
1350 .type = FIO_OPT_STR_SET,
1351 .cb = str_exitall_cb,
1352 .help = "Terminate all jobs when one exits",
1355 .name = "stonewall",
1356 .type = FIO_OPT_STR_SET,
1357 .off1 = td_var_offset(stonewall),
1358 .help = "Insert a hard barrier between this job and previous",
1361 .name = "new_group",
1362 .type = FIO_OPT_STR_SET,
1363 .off1 = td_var_offset(new_group),
1364 .help = "Mark the start of a new group (for reporting)",
1368 .type = FIO_OPT_STR_SET,
1369 .off1 = td_var_offset(use_thread),
1370 .help = "Use threads instead of forks",
1373 .name = "write_bw_log",
1374 .type = FIO_OPT_STR,
1375 .off1 = td_var_offset(write_bw_log),
1376 .cb = str_write_bw_log_cb,
1377 .help = "Write log of bandwidth during run",
1380 .name = "write_lat_log",
1381 .type = FIO_OPT_STR,
1382 .off1 = td_var_offset(write_lat_log),
1383 .cb = str_write_lat_log_cb,
1384 .help = "Write log of latency during run",
1387 .name = "hugepage-size",
1388 .type = FIO_OPT_STR_VAL_INT,
1389 .off1 = td_var_offset(hugepage_size),
1390 .help = "When using hugepages, specify size of each page",
1391 .def = __stringify(FIO_HUGE_PAGE),
1394 .name = "group_reporting",
1395 .type = FIO_OPT_STR_SET,
1396 .off1 = td_var_offset(group_reporting),
1397 .help = "Do reporting on a per-group basis",
1400 .name = "zero_buffers",
1401 .type = FIO_OPT_STR_SET,
1402 .off1 = td_var_offset(zero_buffers),
1403 .help = "Init IO buffers to all zeroes",
1406 .name = "refill_buffers",
1407 .type = FIO_OPT_STR_SET,
1408 .off1 = td_var_offset(refill_buffers),
1409 .help = "Refill IO buffers on every IO submit",
1411 #ifdef FIO_HAVE_DISK_UTIL
1413 .name = "disk_util",
1414 .type = FIO_OPT_BOOL,
1415 .off1 = td_var_offset(do_disk_util),
1416 .help = "Log disk utilization statistics",
1421 .name = "gtod_reduce",
1422 .type = FIO_OPT_BOOL,
1423 .help = "Greatly reduce number of gettimeofday() calls",
1424 .cb = str_gtod_reduce_cb,
1428 .name = "disable_clat",
1429 .type = FIO_OPT_BOOL,
1430 .off1 = td_var_offset(disable_clat),
1431 .help = "Disable completion latency numbers",
1432 .parent = "gtod_reduce",
1436 .name = "disable_slat",
1437 .type = FIO_OPT_BOOL,
1438 .off1 = td_var_offset(disable_slat),
1439 .help = "Disable submissionn latency numbers",
1440 .parent = "gtod_reduce",
1444 .name = "disable_bw_measurement",
1445 .type = FIO_OPT_BOOL,
1446 .off1 = td_var_offset(disable_bw),
1447 .help = "Disable bandwidth logging",
1448 .parent = "gtod_reduce",
1453 .type = FIO_OPT_INT,
1454 .cb = str_gtod_cpu_cb,
1455 .help = "Setup dedicated gettimeofday() thread on this CPU",
1462 void fio_options_dup_and_init(struct option *long_options)
1464 struct fio_option *o;
1467 options_init(options);
1470 while (long_options[i].name)
1475 long_options[i].name = (char *) o->name;
1476 long_options[i].val = FIO_GETOPT_JOB;
1477 if (o->type == FIO_OPT_STR_SET)
1478 long_options[i].has_arg = no_argument;
1480 long_options[i].has_arg = required_argument;
1484 assert(i < FIO_NR_OPTIONS);
1488 int fio_options_parse(struct thread_data *td, char **opts, int num_opts)
1492 sort_options(opts, options, num_opts);
1494 for (ret = 0, i = 0; i < num_opts; i++)
1495 ret |= parse_option(opts[i], options, td);
1500 int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
1502 return parse_cmd_option(opt, val, options, td);
1505 void fio_fill_default_options(struct thread_data *td)
1507 fill_default_options(td, options);
1510 int fio_show_option_help(const char *opt)
1512 return show_cmd_help(options, opt);
1515 static void __options_mem(struct thread_data *td, int alloc)
1517 struct thread_options *o = &td->o;
1518 struct fio_option *opt;
1522 for (i = 0, opt = &options[0]; opt->name; i++, opt = &options[i]) {
1523 if (opt->type != FIO_OPT_STR_STORE)
1526 ptr = (void *) o + opt->off1;
1529 *ptr = strdup(*ptr);
1539 * dupe FIO_OPT_STR_STORE options
1541 void options_mem_dupe(struct thread_data *td)
1543 __options_mem(td, 1);
1546 void options_mem_free(struct thread_data fio_unused *td)
1549 __options_mem(td, 0);