2 * This file contains job initialization and setup functions.
15 #include <sys/types.h>
21 #define FIO_RANDSEED (0xb1899bedUL)
23 #define td_var_offset(var) ((size_t) &((struct thread_data *)0)->var)
25 static int str_ioengine_cb(void *, const char *);
26 static int str_mem_cb(void *, const char *);
27 static int str_lockmem_cb(void *, unsigned long *);
28 #ifdef FIO_HAVE_IOPRIO
29 static int str_prio_cb(void *, unsigned int *);
30 static int str_prioclass_cb(void *, unsigned int *);
32 static int str_exitall_cb(void);
33 static int str_cpumask_cb(void *, unsigned int *);
35 #define __stringify_1(x) #x
36 #define __stringify(x) __stringify_1(x)
39 * Map of job/command line options
41 static struct fio_option options[] = {
43 .name = "description",
44 .type = FIO_OPT_STR_STORE,
45 .off1 = td_var_offset(description),
46 .help = "Text job description",
50 .type = FIO_OPT_STR_STORE,
51 .off1 = td_var_offset(name),
52 .help = "Name of this job",
56 .type = FIO_OPT_STR_STORE,
57 .off1 = td_var_offset(directory),
58 .help = "Directory to store files in",
62 .type = FIO_OPT_STR_STORE,
63 .off1 = td_var_offset(filename),
64 .help = "Force the use of a specific file",
69 .off1 = td_var_offset(td_ddir),
70 .help = "IO direction",
73 { .ival = "read", .oval = TD_DDIR_READ },
74 { .ival = "write", .oval = TD_DDIR_WRITE },
75 { .ival = "randread", .oval = TD_DDIR_RANDREAD },
76 { .ival = "randwrite", .oval = TD_DDIR_RANDWRITE },
77 { .ival = "rw", .oval = TD_DDIR_RW },
78 { .ival = "randrw", .oval = TD_DDIR_RANDRW },
84 .cb = str_ioengine_cb,
85 .help = "IO engine to use",
89 #ifdef FIO_HAVE_LIBAIO
90 { .ival = "libaio", },
92 #ifdef FIO_HAVE_POSIXAIO
93 { .ival = "posixaio", },
96 #ifdef FIO_HAVE_SPLICE
97 { .ival = "splice", },
102 { .ival = "null", }, { .ival = "net", },
103 #ifdef FIO_HAVE_SYSLET
104 { .ival = "syslet-rw", },
106 { .ival = "external", },
112 .off1 = td_var_offset(iodepth),
113 .help = "Amount of IO buffers to keep in flight",
117 .name = "iodepth_batch",
119 .off1 = td_var_offset(iodepth_batch),
120 .help = "Number of IO to submit in one go",
123 .name = "iodepth_low",
125 .off1 = td_var_offset(iodepth_low),
126 .help = "Low water mark for queuing depth",
130 .type = FIO_OPT_STR_VAL,
131 .off1 = td_var_offset(total_file_size),
132 .help = "Size of device or file",
136 .type = FIO_OPT_STR_VAL_INT,
137 .off1 = td_var_offset(bs[DDIR_READ]),
138 .off2 = td_var_offset(bs[DDIR_WRITE]),
139 .help = "Block size unit",
144 .type = FIO_OPT_RANGE,
145 .off1 = td_var_offset(min_bs[DDIR_READ]),
146 .off2 = td_var_offset(max_bs[DDIR_READ]),
147 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
148 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
149 .help = "Set block size range (in more detail than bs)",
152 .name = "bs_unaligned",
153 .type = FIO_OPT_STR_SET,
154 .off1 = td_var_offset(bs_unaligned),
155 .help = "Don't sector align IO buffer sizes",
159 .type = FIO_OPT_STR_VAL,
160 .off1 = td_var_offset(start_offset),
161 .help = "Start IO from this offset",
165 .name = "randrepeat",
166 .type = FIO_OPT_BOOL,
167 .off1 = td_var_offset(rand_repeatable),
168 .help = "Use repeatable random IO pattern",
172 .name = "norandommap",
173 .type = FIO_OPT_STR_SET,
174 .off1 = td_var_offset(norandommap),
175 .help = "Accept potential duplicate random blocks",
180 .off1 = td_var_offset(nr_files),
181 .help = "Split job workload between this number of files",
187 .off1 = td_var_offset(open_files),
188 .help = "Number of files to keep open at the same time",
191 .name = "file_service_type",
193 .off1 = td_var_offset(file_service_type),
194 .help = "How to select which file to service next",
197 { .ival = "random", .oval = FIO_FSERVICE_RANDOM },
198 { .ival = "roundrobin", .oval = FIO_FSERVICE_RR },
204 .off1 = td_var_offset(fsync_blocks),
205 .help = "Issue fsync for writes every given number of blocks",
210 .type = FIO_OPT_BOOL,
211 .off1 = td_var_offset(odirect),
212 .help = "Use O_DIRECT IO (negates buffered)",
217 .type = FIO_OPT_BOOL,
218 .off1 = td_var_offset(odirect),
220 .help = "Use buffered IO (negates direct)",
225 .type = FIO_OPT_BOOL,
226 .off1 = td_var_offset(overwrite),
227 .help = "When writing, set whether to overwrite current data",
233 .off1 = td_var_offset(loops),
234 .help = "Number of times to run the job",
240 .off1 = td_var_offset(numjobs),
241 .help = "Duplicate this job this many times",
245 .name = "startdelay",
247 .off1 = td_var_offset(start_delay),
248 .help = "Only start job when this period has passed",
254 .type = FIO_OPT_STR_VAL_TIME,
255 .off1 = td_var_offset(timeout),
256 .help = "Stop workload when this amount of time has passed",
263 .off1 = td_var_offset(mem_type),
264 .help = "Backing type for IO buffers",
267 { .ival = "malloc", .oval = MEM_MALLOC },
268 { .ival = "shm", .oval = MEM_SHM },
269 #ifdef FIO_HAVE_HUGETLB
270 { .ival = "shmhuge", .oval = MEM_SHMHUGE },
272 { .ival = "mmap", .oval = MEM_MMAP },
273 #ifdef FIO_HAVE_HUGETLB
274 { .ival = "mmaphuge", .oval = MEM_MMAPHUGE },
281 .off1 = td_var_offset(verify),
282 .help = "Verify sum function",
285 { .ival = "0", .oval = VERIFY_NONE },
286 { .ival = "crc32", .oval = VERIFY_CRC32 },
287 { .ival = "md5", .oval = VERIFY_MD5 },
291 .name = "write_iolog",
292 .type = FIO_OPT_STR_STORE,
293 .off1 = td_var_offset(write_iolog_file),
294 .help = "Store IO pattern to file",
297 .name = "read_iolog",
298 .type = FIO_OPT_STR_STORE,
299 .off1 = td_var_offset(read_iolog_file),
300 .help = "Playback IO pattern from file",
303 .name = "exec_prerun",
304 .type = FIO_OPT_STR_STORE,
305 .off1 = td_var_offset(exec_prerun),
306 .help = "Execute this file prior to running job",
309 .name = "exec_postrun",
310 .type = FIO_OPT_STR_STORE,
311 .off1 = td_var_offset(exec_postrun),
312 .help = "Execute this file after running job",
314 #ifdef FIO_HAVE_IOSCHED_SWITCH
316 .name = "ioscheduler",
317 .type = FIO_OPT_STR_STORE,
318 .off1 = td_var_offset(ioscheduler),
319 .help = "Use this IO scheduler on the backing device",
324 .type = FIO_OPT_STR_VAL,
325 .off1 = td_var_offset(zone_size),
326 .help = "Give size of an IO zone",
331 .type = FIO_OPT_STR_VAL,
332 .off1 = td_var_offset(zone_skip),
333 .help = "Space between IO zones",
338 .type = FIO_OPT_STR_VAL,
339 .cb = str_lockmem_cb,
340 .help = "Lock down this amount of memory",
344 .name = "rwmixcycle",
346 .off1 = td_var_offset(rwmixcycle),
347 .help = "Cycle period for mixed read/write workloads (msec)",
353 .off1 = td_var_offset(rwmixread),
355 .help = "Percentage of mixed workload that is reads",
359 .name = "rwmixwrite",
361 .off1 = td_var_offset(rwmixwrite),
363 .help = "Percentage of mixed workload that is writes",
369 .off1 = td_var_offset(nice),
370 .help = "Set job CPU nice value",
375 #ifdef FIO_HAVE_IOPRIO
380 .help = "Set job IO priority value",
387 .cb = str_prioclass_cb,
388 .help = "Set job IO priority class",
396 .off1 = td_var_offset(thinktime),
397 .help = "Idle time between IO buffers (usec)",
401 .name = "thinktime_spin",
403 .off1 = td_var_offset(thinktime_spin),
404 .help = "Start think time by spinning this amount (usec)",
408 .name = "thinktime_blocks",
410 .off1 = td_var_offset(thinktime_blocks),
411 .help = "IO buffer period between 'thinktime'",
417 .off1 = td_var_offset(rate),
418 .help = "Set bandwidth rate",
423 .off1 = td_var_offset(ratemin),
424 .help = "The bottom limit accepted",
429 .off1 = td_var_offset(ratecycle),
430 .help = "Window average for rate limits (msec)",
434 .name = "invalidate",
435 .type = FIO_OPT_BOOL,
436 .off1 = td_var_offset(invalidate_cache),
437 .help = "Invalidate buffer/page cache prior to running job",
442 .type = FIO_OPT_BOOL,
443 .off1 = td_var_offset(sync_io),
444 .help = "Use O_SYNC for buffered writes",
450 .off1 = td_var_offset(bw_avg_time),
451 .help = "Time window over which to calculate bandwidth (msec)",
455 .name = "create_serialize",
456 .type = FIO_OPT_BOOL,
457 .off1 = td_var_offset(create_serialize),
458 .help = "Serialize creating of job files",
462 .name = "create_fsync",
463 .type = FIO_OPT_BOOL,
464 .off1 = td_var_offset(create_fsync),
465 .help = "Fsync file after creation",
471 .off1 = td_var_offset(cpuload),
472 .help = "Use this percentage of CPU",
477 .off1 = td_var_offset(cpucycle),
478 .help = "Length of the CPU burn cycles",
480 #ifdef FIO_HAVE_CPU_AFFINITY
484 .cb = str_cpumask_cb,
485 .help = "CPU affinity mask",
490 .type = FIO_OPT_BOOL,
491 .off1 = td_var_offset(end_fsync),
492 .help = "Include fsync at the end of job",
497 .type = FIO_OPT_BOOL,
498 .off1 = td_var_offset(unlink),
499 .help = "Unlink created files after job has completed",
504 .type = FIO_OPT_STR_SET,
505 .cb = str_exitall_cb,
506 .help = "Terminate all jobs when one exits",
510 .type = FIO_OPT_STR_SET,
511 .off1 = td_var_offset(stonewall),
512 .help = "Insert a hard barrier between this job and previous",
516 .type = FIO_OPT_STR_SET,
517 .off1 = td_var_offset(use_thread),
518 .help = "Use threads instead of forks",
521 .name = "write_bw_log",
522 .type = FIO_OPT_STR_SET,
523 .off1 = td_var_offset(write_bw_log),
524 .help = "Write log of bandwidth during run",
527 .name = "write_lat_log",
528 .type = FIO_OPT_STR_SET,
529 .off1 = td_var_offset(write_lat_log),
530 .help = "Write log of latency during run",
533 .name = "hugepage-size",
534 .type = FIO_OPT_STR_VAL,
535 .off1 = td_var_offset(hugepage_size),
536 .help = "When using hugepages, specify size of each page",
537 .def = __stringify(FIO_HUGE_PAGE),
540 .name = "group_reporting",
541 .type = FIO_OPT_STR_SET,
542 .off1 = td_var_offset(group_reporting),
543 .help = "Do reporting on a per-group basis",
550 #define FIO_JOB_OPTS (sizeof(options) / sizeof(struct fio_option))
551 #define FIO_CMD_OPTS (16)
552 #define FIO_GETOPT_JOB (0x89988998)
555 * Command line options. These will contain the above, plus a few
556 * extra that only pertain to fio itself and not jobs.
558 static struct option long_options[FIO_JOB_OPTS + FIO_CMD_OPTS] = {
561 .has_arg = required_argument,
566 .has_arg = required_argument,
570 .name = "latency-log",
571 .has_arg = required_argument,
575 .name = "bandwidth-log",
576 .has_arg = required_argument,
581 .has_arg = optional_argument,
586 .has_arg = no_argument,
591 .has_arg = no_argument,
596 .has_arg = optional_argument,
604 static int def_timeout = 0;
606 static char fio_version_string[] = "fio 1.13";
608 static char **ini_file;
609 static int max_jobs = MAX_JOBS;
611 struct thread_data def_thread;
612 struct thread_data *threads = NULL;
614 int exitall_on_terminate = 0;
615 int terse_output = 0;
616 unsigned long long mlock_size = 0;
620 static int write_lat_log = 0;
621 int write_bw_log = 0;
634 * Return a free job structure.
636 static struct thread_data *get_new_job(int global, struct thread_data *parent)
638 struct thread_data *td;
642 if (thread_number >= max_jobs)
645 td = &threads[thread_number++];
648 td->thread_number = thread_number;
652 static void put_job(struct thread_data *td)
654 if (td == &def_thread)
658 fprintf(f_out, "fio: %s\n", td->verror);
660 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
665 * Lazy way of fixing up options that depend on each other. We could also
666 * define option callback handlers, but this is easier.
668 static void fixup_options(struct thread_data *td)
670 if (!td->rwmixread && td->rwmixwrite)
671 td->rwmixread = 100 - td->rwmixwrite;
673 if (td->write_iolog_file && td->read_iolog_file) {
674 log_err("fio: read iolog overrides write_iolog\n");
675 free(td->write_iolog_file);
676 td->write_iolog_file = NULL;
679 if (td->io_ops->flags & FIO_SYNCIO)
683 td->iodepth = td->open_files;
687 * only really works for sequential io for now, and with 1 file
689 if (td->zone_size && td_random(td) && td->open_files == 1)
693 * Reads can do overwrites, we always need to pre-create the file
695 if (td_read(td) || td_rw(td))
698 if (!td->min_bs[DDIR_READ])
699 td->min_bs[DDIR_READ]= td->bs[DDIR_READ];
700 if (!td->max_bs[DDIR_READ])
701 td->max_bs[DDIR_READ] = td->bs[DDIR_READ];
702 if (!td->min_bs[DDIR_WRITE])
703 td->min_bs[DDIR_WRITE]= td->bs[DDIR_WRITE];
704 if (!td->max_bs[DDIR_WRITE])
705 td->max_bs[DDIR_WRITE] = td->bs[DDIR_WRITE];
707 td->rw_min_bs = min(td->min_bs[DDIR_READ], td->min_bs[DDIR_WRITE]);
709 if (td_read(td) && !td_rw(td))
712 if (td->norandommap && td->verify != VERIFY_NONE) {
713 log_err("fio: norandommap given, verify disabled\n");
714 td->verify = VERIFY_NONE;
716 if (td->bs_unaligned && (td->odirect || td->io_ops->flags & FIO_RAWIO))
717 log_err("fio: bs_unaligned may not work with raw io\n");
720 * O_DIRECT and char doesn't mix, clear that flag if necessary.
722 if (td->filetype == FIO_TYPE_CHAR && td->odirect)
726 * thinktime_spin must be less than thinktime
728 if (td->thinktime_spin > td->thinktime)
729 td->thinktime_spin = td->thinktime;
732 * The low water mark cannot be bigger than the iodepth
734 if (td->iodepth_low > td->iodepth || !td->iodepth_low) {
736 * syslet work around - if the workload is sequential,
737 * we want to let the queue drain all the way down to
738 * avoid seeking between async threads
740 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
743 td->iodepth_low = td->iodepth;
747 * If batch number isn't set, default to the same as iodepth
749 if (td->iodepth_batch > td->iodepth || !td->iodepth_batch)
750 td->iodepth_batch = td->iodepth;
752 if (td->open_files > td->nr_files || !td->open_files)
753 td->open_files = td->nr_files;
757 * This function leaks the buffer
759 static char *to_kmg(unsigned int val)
761 char *buf = malloc(32);
762 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
773 snprintf(buf, 31, "%u%c", val, *p);
778 * Adds a job to the list of things todo. Sanitizes the various options
779 * to make sure we don't have conflicts, and initializes various
782 static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
784 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
785 "randread", "randwrite", "randrw" };
791 * the def_thread is just for options, it's not a real job
793 if (td == &def_thread)
799 td->io_ops->flags |= FIO_RAWIO;
801 td->filetype = FIO_TYPE_FILE;
802 if (td->filename && !lstat(td->filename, &sb)) {
803 if (S_ISBLK(sb.st_mode))
804 td->filetype = FIO_TYPE_BD;
805 else if (S_ISCHR(sb.st_mode))
806 td->filetype = FIO_TYPE_CHAR;
812 td->nr_uniq_files = 1;
814 td->nr_uniq_files = td->open_files;
816 if (td->filetype == FIO_TYPE_FILE || td->filename) {
820 if (td->directory && td->directory[0] != '\0') {
821 if (lstat(td->directory, &sb) < 0) {
822 log_err("fio: %s is not a directory\n", td->directory);
823 td_verror(td, errno, "lstat");
826 if (!S_ISDIR(sb.st_mode)) {
827 log_err("fio: %s is not a directory\n", td->directory);
830 len = sprintf(tmp, "%s/", td->directory);
833 td->files = malloc(sizeof(struct fio_file) * td->open_files);
835 for_each_file(td, f, i) {
836 memset(f, 0, sizeof(*f));
840 sprintf(tmp + len, "%s", td->filename);
842 sprintf(tmp + len, "%s.%d.%d", jobname, td->thread_number, i);
843 f->file_name = strdup(tmp);
846 td->open_files = td->nr_files = 1;
847 td->files = malloc(sizeof(struct fio_file));
850 memset(f, 0, sizeof(*f));
852 f->file_name = strdup(jobname);
855 for_each_file(td, f, i) {
856 f->file_size = td->total_file_size / td->nr_files;
857 f->file_offset = td->start_offset;
860 td->mutex = fio_sem_init(0);
862 td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
863 td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
864 td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
866 if (td->stonewall && td->thread_number > 1)
869 td->groupid = groupid;
874 if (td->write_lat_log) {
875 setup_log(&td->ts.slat_log);
876 setup_log(&td->ts.clat_log);
878 if (td->write_bw_log)
879 setup_log(&td->ts.bw_log);
882 td->name = strdup(jobname);
886 if (td->io_ops->flags & FIO_CPUIO)
887 fprintf(f_out, "%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->name, td->cpuload, td->cpucycle);
889 char *c1, *c2, *c3, *c4;
891 c1 = to_kmg(td->min_bs[DDIR_READ]);
892 c2 = to_kmg(td->max_bs[DDIR_READ]);
893 c3 = to_kmg(td->min_bs[DDIR_WRITE]);
894 c4 = to_kmg(td->max_bs[DDIR_WRITE]);
896 fprintf(f_out, "%s: (g=%d): rw=%s, bs=%s-%s/%s-%s, ioengine=%s, iodepth=%u\n", td->name, td->groupid, ddir_str[td->td_ddir], c1, c2, c3, c4, td->io_ops->name, td->iodepth);
903 } else if (job_add_num == 1)
904 fprintf(f_out, "...\n");
908 * recurse add identical jobs, clear numjobs and stonewall options
909 * as they don't apply to sub-jobs
911 numjobs = td->numjobs;
913 struct thread_data *td_new = get_new_job(0, td);
919 td_new->stonewall = 0;
920 job_add_num = numjobs - 1;
922 if (add_job(td_new, jobname, job_add_num))
932 * Initialize the various random states we need (random io, block size ranges,
933 * read/write mix, etc).
935 int init_random_state(struct thread_data *td)
937 unsigned long seeds[5];
938 int fd, num_maps, blocks, i;
941 if (td->io_ops->flags & FIO_CPUIO)
944 fd = open("/dev/urandom", O_RDONLY);
946 td_verror(td, errno, "open");
950 if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
951 td_verror(td, EIO, "read");
958 os_random_seed(seeds[0], &td->bsrange_state);
959 os_random_seed(seeds[1], &td->verify_state);
960 os_random_seed(seeds[2], &td->rwmix_state);
962 if (td->file_service_type == FIO_FSERVICE_RANDOM)
963 os_random_seed(seeds[3], &td->next_file_state);
968 if (td->rand_repeatable)
969 seeds[4] = FIO_RANDSEED * td->thread_number;
971 if (!td->norandommap) {
972 for_each_file(td, f, i) {
973 blocks = (f->real_file_size + td->rw_min_bs - 1) / td->rw_min_bs;
974 num_maps = (blocks + BLOCKS_PER_MAP-1)/ BLOCKS_PER_MAP;
975 f->file_map = malloc(num_maps * sizeof(long));
976 f->num_maps = num_maps;
977 memset(f->file_map, 0, num_maps * sizeof(long));
981 os_random_seed(seeds[4], &td->random_state);
985 static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
987 #ifdef FIO_HAVE_CPU_AFFINITY
992 for (i = 0; i < sizeof(int) * 8; i++) {
994 CPU_SET(i, &cpumask);
999 static int is_empty_or_comment(char *line)
1003 for (i = 0; i < strlen(line); i++) {
1008 if (!isspace(line[i]) && !iscntrl(line[i]))
1016 * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
1018 static char *get_mmap_file(const char *str)
1020 char *p = strstr(str, ":");
1026 strip_blank_front(&p);
1031 static int str_mem_cb(void *data, const char *mem)
1033 struct thread_data *td = data;
1035 if (td->mem_type == MEM_MMAPHUGE || td->mem_type == MEM_MMAP) {
1036 td->mmapfile = get_mmap_file(mem);
1037 if (td->mem_type == MEM_MMAPHUGE && !td->mmapfile) {
1038 log_err("fio: mmaphuge:/path/to/file\n");
1046 /* External engines are specified by "external:name.o") */
1047 static const char *get_engine_name(const char *str)
1049 char *p = strstr(str, ":");
1055 strip_blank_front(&p);
1060 static int str_ioengine_cb(void *data, const char *str)
1062 struct thread_data *td = data;
1063 const char *name = get_engine_name(str);
1065 td->io_ops = load_ioengine(td, name);
1072 static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
1078 #ifdef FIO_HAVE_IOPRIO
1079 static int str_prioclass_cb(void *data, unsigned int *val)
1081 struct thread_data *td = data;
1083 td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
1087 static int str_prio_cb(void *data, unsigned int *val)
1089 struct thread_data *td = data;
1096 static int str_exitall_cb(void)
1098 exitall_on_terminate = 1;
1102 static int str_cpumask_cb(void *data, unsigned int *val)
1104 struct thread_data *td = data;
1106 fill_cpu_mask(td->cpumask, *val);
1111 * This is our [ini] type file parser.
1113 static int parse_jobs_ini(char *file, int stonewall_flag)
1115 unsigned int global;
1116 struct thread_data *td;
1117 char *string, *name;
1121 int ret = 0, stonewall;
1123 f = fopen(file, "r");
1125 perror("fopen job file");
1129 string = malloc(4096);
1131 memset(name, 0, 256);
1133 stonewall = stonewall_flag;
1135 p = fgets(string, 4095, f);
1138 if (is_empty_or_comment(p))
1140 if (sscanf(p, "[%255s]", name) != 1)
1143 global = !strncmp(name, "global", 6);
1145 name[strlen(name) - 1] = '\0';
1147 td = get_new_job(global, &def_thread);
1154 * Seperate multiple job files by a stonewall
1156 if (!global && stonewall) {
1157 td->stonewall = stonewall;
1162 while ((p = fgets(string, 4096, f)) != NULL) {
1163 if (is_empty_or_comment(p))
1166 strip_blank_front(&p);
1176 * Don't break here, continue parsing options so we
1177 * dump all the bad ones. Makes trial/error fixups
1178 * easier on the user.
1180 ret |= parse_option(p, options, td);
1185 ret = add_job(td, name, 0);
1187 log_err("fio: job %s dropped\n", name);
1198 static int fill_def_thread(void)
1200 memset(&def_thread, 0, sizeof(def_thread));
1202 if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
1203 perror("sched_getaffinity");
1208 * fill default options
1210 fill_default_options(&def_thread, options);
1212 def_thread.timeout = def_timeout;
1213 def_thread.write_bw_log = write_bw_log;
1214 def_thread.write_lat_log = write_lat_log;
1216 #ifdef FIO_HAVE_DISK_UTIL
1217 def_thread.do_disk_util = 1;
1223 static void usage(void)
1225 printf("%s\n", fio_version_string);
1226 printf("\t--output\tWrite output to file\n");
1227 printf("\t--timeout\tRuntime in seconds\n");
1228 printf("\t--latency-log\tGenerate per-job latency logs\n");
1229 printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
1230 printf("\t--minimal\tMinimal (terse) output\n");
1231 printf("\t--version\tPrint version info and exit\n");
1232 printf("\t--help\t\tPrint this page\n");
1233 printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of them\n");
1236 static int parse_cmd_line(int argc, char *argv[])
1238 struct thread_data *td = NULL;
1239 int c, ini_idx = 0, lidx, ret, dont_add_job = 0;
1241 while ((c = getopt_long_only(argc, argv, "", long_options, &lidx)) != -1) {
1244 def_timeout = atoi(optarg);
1253 f_out = fopen(optarg, "w+");
1255 perror("fopen output");
1267 ret = show_cmd_help(options, optarg);
1270 printf("%s\n", fio_version_string);
1272 case FIO_GETOPT_JOB: {
1273 const char *opt = long_options[lidx].name;
1276 if (!strncmp(opt, "name", 4) && td) {
1277 ret = add_job(td, td->name ?: "fio", 0);
1285 int global = !strncmp(val, "global", 6);
1287 td = get_new_job(global, &def_thread);
1292 ret = parse_cmd_option(opt, val, options, td);
1306 ret = add_job(td, td->name ?: "fio", 0);
1312 while (optind < argc) {
1314 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1315 ini_file[ini_idx - 1] = strdup(argv[optind]);
1322 static void free_shm(void)
1324 struct shmid_ds sbuf;
1327 shmdt((void *) threads);
1329 shmctl(shm_id, IPC_RMID, &sbuf);
1334 * The thread area is shared between the main process and the job
1335 * threads/processes. So setup a shared memory segment that will hold
1338 static int setup_thread_area(void)
1341 * 1024 is too much on some machines, scale max_jobs if
1342 * we get a failure that looks like too large a shm segment
1345 size_t size = max_jobs * sizeof(struct thread_data);
1347 shm_id = shmget(0, size, IPC_CREAT | 0600);
1350 if (errno != EINVAL) {
1361 threads = shmat(shm_id, NULL, 0);
1362 if (threads == (void *) -1) {
1372 * Copy the fio options into the long options map, so we mirror
1373 * job and cmd line options.
1375 static void dupe_job_options(void)
1377 struct fio_option *o;
1381 while (long_options[i].name)
1386 long_options[i].name = o->name;
1387 long_options[i].val = FIO_GETOPT_JOB;
1388 if (o->type == FIO_OPT_STR_SET)
1389 long_options[i].has_arg = no_argument;
1391 long_options[i].has_arg = required_argument;
1395 assert(i < FIO_JOB_OPTS + FIO_CMD_OPTS);
1399 int parse_options(int argc, char *argv[])
1406 options_init(options);
1410 if (setup_thread_area())
1412 if (fill_def_thread())
1415 job_files = parse_cmd_line(argc, argv);
1417 for (i = 0; i < job_files; i++) {
1418 if (fill_def_thread())
1420 if (parse_jobs_ini(ini_file[i], i))
1427 if (!thread_number) {
1428 log_err("No jobs defined(s)\n");