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_mem_cb(void *, const char *);
26 static int str_lockmem_cb(void *, unsigned long *);
27 #ifdef FIO_HAVE_IOPRIO
28 static int str_prio_cb(void *, unsigned int *);
29 static int str_prioclass_cb(void *, unsigned int *);
31 static int str_exitall_cb(void);
32 static int str_cpumask_cb(void *, unsigned int *);
33 static int str_fst_cb(void *, const char *);
34 static int str_filename_cb(void *, const char *);
35 static int str_directory_cb(void *, const char *);
37 #define __stringify_1(x) #x
38 #define __stringify(x) __stringify_1(x)
41 * Map of job/command line options
43 static struct fio_option options[] = {
45 .name = "description",
46 .type = FIO_OPT_STR_STORE,
47 .off1 = td_var_offset(description),
48 .help = "Text job description",
52 .type = FIO_OPT_STR_STORE,
53 .off1 = td_var_offset(name),
54 .help = "Name of this job",
58 .type = FIO_OPT_STR_STORE,
59 .off1 = td_var_offset(directory),
60 .cb = str_directory_cb,
61 .help = "Directory to store files in",
65 .type = FIO_OPT_STR_STORE,
66 .off1 = td_var_offset(filename),
67 .cb = str_filename_cb,
68 .help = "File(s) to use for the workload",
73 .off1 = td_var_offset(td_ddir),
74 .help = "IO direction",
77 { .ival = "read", .oval = TD_DDIR_READ },
78 { .ival = "write", .oval = TD_DDIR_WRITE },
79 { .ival = "randread", .oval = TD_DDIR_RANDREAD },
80 { .ival = "randwrite", .oval = TD_DDIR_RANDWRITE },
81 { .ival = "rw", .oval = TD_DDIR_RW },
82 { .ival = "randrw", .oval = TD_DDIR_RANDRW },
87 .type = FIO_OPT_STR_STORE,
88 .off1 = td_var_offset(ioengine),
89 .help = "IO engine to use",
93 #ifdef FIO_HAVE_LIBAIO
94 { .ival = "libaio", },
96 #ifdef FIO_HAVE_POSIXAIO
97 { .ival = "posixaio", },
100 #ifdef FIO_HAVE_SPLICE
101 { .ival = "splice", },
106 { .ival = "null", }, { .ival = "net", },
107 #ifdef FIO_HAVE_SYSLET
108 { .ival = "syslet-rw", },
110 { .ival = "cpuio", },
111 { .ival = "external", },
117 .off1 = td_var_offset(iodepth),
118 .help = "Amount of IO buffers to keep in flight",
122 .name = "iodepth_batch",
124 .off1 = td_var_offset(iodepth_batch),
125 .help = "Number of IO to submit in one go",
128 .name = "iodepth_low",
130 .off1 = td_var_offset(iodepth_low),
131 .help = "Low water mark for queuing depth",
135 .type = FIO_OPT_STR_VAL,
136 .off1 = td_var_offset(total_file_size),
137 .help = "Size of device or file",
141 .type = FIO_OPT_STR_VAL_INT,
142 .off1 = td_var_offset(bs[DDIR_READ]),
143 .off2 = td_var_offset(bs[DDIR_WRITE]),
144 .help = "Block size unit",
149 .type = FIO_OPT_RANGE,
150 .off1 = td_var_offset(min_bs[DDIR_READ]),
151 .off2 = td_var_offset(max_bs[DDIR_READ]),
152 .off3 = td_var_offset(min_bs[DDIR_WRITE]),
153 .off4 = td_var_offset(max_bs[DDIR_WRITE]),
154 .help = "Set block size range (in more detail than bs)",
157 .name = "bs_unaligned",
158 .type = FIO_OPT_STR_SET,
159 .off1 = td_var_offset(bs_unaligned),
160 .help = "Don't sector align IO buffer sizes",
164 .type = FIO_OPT_STR_VAL,
165 .off1 = td_var_offset(start_offset),
166 .help = "Start IO from this offset",
170 .name = "randrepeat",
171 .type = FIO_OPT_BOOL,
172 .off1 = td_var_offset(rand_repeatable),
173 .help = "Use repeatable random IO pattern",
177 .name = "norandommap",
178 .type = FIO_OPT_STR_SET,
179 .off1 = td_var_offset(norandommap),
180 .help = "Accept potential duplicate random blocks",
185 .off1 = td_var_offset(nr_files),
186 .help = "Split job workload between this number of files",
192 .off1 = td_var_offset(open_files),
193 .help = "Number of files to keep open at the same time",
196 .name = "file_service_type",
199 .off1 = td_var_offset(file_service_type),
200 .help = "How to select which file to service next",
203 { .ival = "random", .oval = FIO_FSERVICE_RANDOM },
204 { .ival = "roundrobin", .oval = FIO_FSERVICE_RR },
210 .off1 = td_var_offset(fsync_blocks),
211 .help = "Issue fsync for writes every given number of blocks",
216 .type = FIO_OPT_BOOL,
217 .off1 = td_var_offset(odirect),
218 .help = "Use O_DIRECT IO (negates buffered)",
223 .type = FIO_OPT_BOOL,
224 .off1 = td_var_offset(odirect),
226 .help = "Use buffered IO (negates direct)",
231 .type = FIO_OPT_BOOL,
232 .off1 = td_var_offset(overwrite),
233 .help = "When writing, set whether to overwrite current data",
239 .off1 = td_var_offset(loops),
240 .help = "Number of times to run the job",
246 .off1 = td_var_offset(numjobs),
247 .help = "Duplicate this job this many times",
251 .name = "startdelay",
253 .off1 = td_var_offset(start_delay),
254 .help = "Only start job when this period has passed",
260 .type = FIO_OPT_STR_VAL_TIME,
261 .off1 = td_var_offset(timeout),
262 .help = "Stop workload when this amount of time has passed",
269 .off1 = td_var_offset(mem_type),
270 .help = "Backing type for IO buffers",
273 { .ival = "malloc", .oval = MEM_MALLOC },
274 { .ival = "shm", .oval = MEM_SHM },
275 #ifdef FIO_HAVE_HUGETLB
276 { .ival = "shmhuge", .oval = MEM_SHMHUGE },
278 { .ival = "mmap", .oval = MEM_MMAP },
279 #ifdef FIO_HAVE_HUGETLB
280 { .ival = "mmaphuge", .oval = MEM_MMAPHUGE },
287 .off1 = td_var_offset(verify),
288 .help = "Verify sum function",
291 { .ival = "0", .oval = VERIFY_NONE },
292 { .ival = "crc32", .oval = VERIFY_CRC32 },
293 { .ival = "md5", .oval = VERIFY_MD5 },
297 .name = "write_iolog",
298 .type = FIO_OPT_STR_STORE,
299 .off1 = td_var_offset(write_iolog_file),
300 .help = "Store IO pattern to file",
303 .name = "read_iolog",
304 .type = FIO_OPT_STR_STORE,
305 .off1 = td_var_offset(read_iolog_file),
306 .help = "Playback IO pattern from file",
309 .name = "exec_prerun",
310 .type = FIO_OPT_STR_STORE,
311 .off1 = td_var_offset(exec_prerun),
312 .help = "Execute this file prior to running job",
315 .name = "exec_postrun",
316 .type = FIO_OPT_STR_STORE,
317 .off1 = td_var_offset(exec_postrun),
318 .help = "Execute this file after running job",
320 #ifdef FIO_HAVE_IOSCHED_SWITCH
322 .name = "ioscheduler",
323 .type = FIO_OPT_STR_STORE,
324 .off1 = td_var_offset(ioscheduler),
325 .help = "Use this IO scheduler on the backing device",
330 .type = FIO_OPT_STR_VAL,
331 .off1 = td_var_offset(zone_size),
332 .help = "Give size of an IO zone",
337 .type = FIO_OPT_STR_VAL,
338 .off1 = td_var_offset(zone_skip),
339 .help = "Space between IO zones",
344 .type = FIO_OPT_STR_VAL,
345 .cb = str_lockmem_cb,
346 .help = "Lock down this amount of memory",
350 .name = "rwmixcycle",
352 .off1 = td_var_offset(rwmixcycle),
353 .help = "Cycle period for mixed read/write workloads (msec)",
359 .off1 = td_var_offset(rwmixread),
361 .help = "Percentage of mixed workload that is reads",
365 .name = "rwmixwrite",
367 .off1 = td_var_offset(rwmixwrite),
369 .help = "Percentage of mixed workload that is writes",
375 .off1 = td_var_offset(nice),
376 .help = "Set job CPU nice value",
381 #ifdef FIO_HAVE_IOPRIO
386 .help = "Set job IO priority value",
393 .cb = str_prioclass_cb,
394 .help = "Set job IO priority class",
402 .off1 = td_var_offset(thinktime),
403 .help = "Idle time between IO buffers (usec)",
407 .name = "thinktime_spin",
409 .off1 = td_var_offset(thinktime_spin),
410 .help = "Start think time by spinning this amount (usec)",
414 .name = "thinktime_blocks",
416 .off1 = td_var_offset(thinktime_blocks),
417 .help = "IO buffer period between 'thinktime'",
423 .off1 = td_var_offset(rate),
424 .help = "Set bandwidth rate",
429 .off1 = td_var_offset(ratemin),
430 .help = "The bottom limit accepted",
435 .off1 = td_var_offset(ratecycle),
436 .help = "Window average for rate limits (msec)",
440 .name = "invalidate",
441 .type = FIO_OPT_BOOL,
442 .off1 = td_var_offset(invalidate_cache),
443 .help = "Invalidate buffer/page cache prior to running job",
448 .type = FIO_OPT_BOOL,
449 .off1 = td_var_offset(sync_io),
450 .help = "Use O_SYNC for buffered writes",
456 .off1 = td_var_offset(bw_avg_time),
457 .help = "Time window over which to calculate bandwidth (msec)",
461 .name = "create_serialize",
462 .type = FIO_OPT_BOOL,
463 .off1 = td_var_offset(create_serialize),
464 .help = "Serialize creating of job files",
468 .name = "create_fsync",
469 .type = FIO_OPT_BOOL,
470 .off1 = td_var_offset(create_fsync),
471 .help = "Fsync file after creation",
477 .off1 = td_var_offset(cpuload),
478 .help = "Use this percentage of CPU",
483 .off1 = td_var_offset(cpucycle),
484 .help = "Length of the CPU burn cycles (usecs)",
487 #ifdef FIO_HAVE_CPU_AFFINITY
491 .cb = str_cpumask_cb,
492 .help = "CPU affinity mask",
497 .type = FIO_OPT_BOOL,
498 .off1 = td_var_offset(end_fsync),
499 .help = "Include fsync at the end of job",
504 .type = FIO_OPT_BOOL,
505 .off1 = td_var_offset(unlink),
506 .help = "Unlink created files after job has completed",
511 .type = FIO_OPT_STR_SET,
512 .cb = str_exitall_cb,
513 .help = "Terminate all jobs when one exits",
517 .type = FIO_OPT_STR_SET,
518 .off1 = td_var_offset(stonewall),
519 .help = "Insert a hard barrier between this job and previous",
523 .type = FIO_OPT_STR_SET,
524 .off1 = td_var_offset(use_thread),
525 .help = "Use threads instead of forks",
528 .name = "write_bw_log",
529 .type = FIO_OPT_STR_SET,
530 .off1 = td_var_offset(write_bw_log),
531 .help = "Write log of bandwidth during run",
534 .name = "write_lat_log",
535 .type = FIO_OPT_STR_SET,
536 .off1 = td_var_offset(write_lat_log),
537 .help = "Write log of latency during run",
540 .name = "hugepage-size",
541 .type = FIO_OPT_STR_VAL,
542 .off1 = td_var_offset(hugepage_size),
543 .help = "When using hugepages, specify size of each page",
544 .def = __stringify(FIO_HUGE_PAGE),
547 .name = "group_reporting",
548 .type = FIO_OPT_STR_SET,
549 .off1 = td_var_offset(group_reporting),
550 .help = "Do reporting on a per-group basis",
557 #define FIO_JOB_OPTS (sizeof(options) / sizeof(struct fio_option))
558 #define FIO_CMD_OPTS (16)
559 #define FIO_GETOPT_JOB (0x89988998)
562 * Command line options. These will contain the above, plus a few
563 * extra that only pertain to fio itself and not jobs.
565 static struct option long_options[FIO_JOB_OPTS + FIO_CMD_OPTS] = {
568 .has_arg = required_argument,
573 .has_arg = required_argument,
577 .name = "latency-log",
578 .has_arg = required_argument,
582 .name = "bandwidth-log",
583 .has_arg = required_argument,
588 .has_arg = optional_argument,
593 .has_arg = no_argument,
598 .has_arg = no_argument,
603 .has_arg = optional_argument,
611 static int def_timeout = 0;
613 static char fio_version_string[] = "fio 1.13";
615 static char **ini_file;
616 static int max_jobs = MAX_JOBS;
618 struct thread_data def_thread;
619 struct thread_data *threads = NULL;
621 int exitall_on_terminate = 0;
622 int terse_output = 0;
623 unsigned long long mlock_size = 0;
627 static int write_lat_log = 0;
628 int write_bw_log = 0;
630 static int prev_group_jobs;
643 * Return a free job structure.
645 static struct thread_data *get_new_job(int global, struct thread_data *parent)
647 struct thread_data *td;
651 if (thread_number >= max_jobs)
654 td = &threads[thread_number++];
657 td->thread_number = thread_number;
661 static void put_job(struct thread_data *td)
663 if (td == &def_thread)
667 fprintf(f_out, "fio: %s\n", td->verror);
669 memset(&threads[td->thread_number - 1], 0, sizeof(*td));
674 * Lazy way of fixing up options that depend on each other. We could also
675 * define option callback handlers, but this is easier.
677 static void fixup_options(struct thread_data *td)
679 if (!td->rwmixread && td->rwmixwrite)
680 td->rwmixread = 100 - td->rwmixwrite;
682 if (td->write_iolog_file && td->read_iolog_file) {
683 log_err("fio: read iolog overrides write_iolog\n");
684 free(td->write_iolog_file);
685 td->write_iolog_file = NULL;
688 if (td->io_ops->flags & FIO_SYNCIO)
692 td->iodepth = td->open_files;
696 * only really works for sequential io for now, and with 1 file
698 if (td->zone_size && td_random(td) && td->open_files == 1)
702 * Reads can do overwrites, we always need to pre-create the file
704 if (td_read(td) || td_rw(td))
707 if (!td->min_bs[DDIR_READ])
708 td->min_bs[DDIR_READ]= td->bs[DDIR_READ];
709 if (!td->max_bs[DDIR_READ])
710 td->max_bs[DDIR_READ] = td->bs[DDIR_READ];
711 if (!td->min_bs[DDIR_WRITE])
712 td->min_bs[DDIR_WRITE]= td->bs[DDIR_WRITE];
713 if (!td->max_bs[DDIR_WRITE])
714 td->max_bs[DDIR_WRITE] = td->bs[DDIR_WRITE];
716 td->rw_min_bs = min(td->min_bs[DDIR_READ], td->min_bs[DDIR_WRITE]);
718 if (td_read(td) && !td_rw(td))
721 if (td->norandommap && td->verify != VERIFY_NONE) {
722 log_err("fio: norandommap given, verify disabled\n");
723 td->verify = VERIFY_NONE;
725 if (td->bs_unaligned && (td->odirect || td->io_ops->flags & FIO_RAWIO))
726 log_err("fio: bs_unaligned may not work with raw io\n");
729 * thinktime_spin must be less than thinktime
731 if (td->thinktime_spin > td->thinktime)
732 td->thinktime_spin = td->thinktime;
735 * The low water mark cannot be bigger than the iodepth
737 if (td->iodepth_low > td->iodepth || !td->iodepth_low) {
739 * syslet work around - if the workload is sequential,
740 * we want to let the queue drain all the way down to
741 * avoid seeking between async threads
743 if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
746 td->iodepth_low = td->iodepth;
750 * If batch number isn't set, default to the same as iodepth
752 if (td->iodepth_batch > td->iodepth || !td->iodepth_batch)
753 td->iodepth_batch = td->iodepth;
756 td->nr_files = td->open_files;
757 else if (td->open_files > td->nr_files || !td->open_files)
758 td->open_files = td->nr_files;
762 * This function leaks the buffer
764 static char *to_kmg(unsigned int val)
766 char *buf = malloc(32);
767 char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
778 snprintf(buf, 31, "%u%c", val, *p);
782 /* External engines are specified by "external:name.o") */
783 static const char *get_engine_name(const char *str)
785 char *p = strstr(str, ":");
791 strip_blank_front(&p);
797 * Adds a job to the list of things todo. Sanitizes the various options
798 * to make sure we don't have conflicts, and initializes various
801 static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
803 const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
804 "randread", "randwrite", "randrw" };
808 char fname[PATH_MAX];
812 * the def_thread is just for options, it's not a real job
814 if (td == &def_thread)
817 engine = get_engine_name(td->ioengine);
818 td->io_ops = load_ioengine(td, engine);
820 log_err("fio: failed to load engine %s\n", engine);
830 td->io_ops->flags |= FIO_RAWIO;
833 td->filename = strdup(jobname);
835 if (td->nr_files == 1)
836 add_file(td, td->filename);
838 for (i = 0; i < td->nr_files; i++) {
839 sprintf(fname, "%s.%d.%d", td->filename, td->thread_number, i);
847 for_each_file(td, f, i) {
848 if (td->directory && f->filetype == FIO_TYPE_FILE) {
849 sprintf(fname, "%s/%s", td->directory, f->file_name);
850 f->file_name = strdup(fname);
853 f->file_size = td->total_file_size / td->nr_files;
854 f->file_offset = td->start_offset;
857 td->mutex = fio_sem_init(0);
859 td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
860 td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
861 td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
863 if ((td->stonewall || td->numjobs > 1) && prev_group_jobs) {
868 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 (!strcmp(td->io_ops->name, "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))
926 if (td->numjobs > 1) {
938 * Initialize the various random states we need (random io, block size ranges,
939 * read/write mix, etc).
941 int init_random_state(struct thread_data *td)
943 unsigned long seeds[5];
944 int fd, num_maps, blocks;
948 if (td->io_ops->flags & FIO_DISKLESSIO)
951 fd = open("/dev/urandom", O_RDONLY);
953 td_verror(td, errno, "open");
957 if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
958 td_verror(td, EIO, "read");
965 os_random_seed(seeds[0], &td->bsrange_state);
966 os_random_seed(seeds[1], &td->verify_state);
967 os_random_seed(seeds[2], &td->rwmix_state);
969 if (td->file_service_type == FIO_FSERVICE_RANDOM)
970 os_random_seed(seeds[3], &td->next_file_state);
975 if (td->rand_repeatable)
976 seeds[4] = FIO_RANDSEED * td->thread_number;
978 if (!td->norandommap) {
979 for_each_file(td, f, i) {
980 blocks = (f->real_file_size + td->rw_min_bs - 1) / td->rw_min_bs;
981 num_maps = (blocks + BLOCKS_PER_MAP-1)/ BLOCKS_PER_MAP;
982 f->file_map = malloc(num_maps * sizeof(long));
984 log_err("fio: failed allocating random map. If running a large number of jobs, try the 'norandommap' option\n");
987 f->num_maps = num_maps;
988 memset(f->file_map, 0, num_maps * sizeof(long));
992 os_random_seed(seeds[4], &td->random_state);
996 static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
998 #ifdef FIO_HAVE_CPU_AFFINITY
1003 for (i = 0; i < sizeof(int) * 8; i++) {
1005 CPU_SET(i, &cpumask);
1010 static int is_empty_or_comment(char *line)
1014 for (i = 0; i < strlen(line); i++) {
1019 if (!isspace(line[i]) && !iscntrl(line[i]))
1027 * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
1029 static char *get_opt_postfix(const char *str)
1031 char *p = strstr(str, ":");
1037 strip_blank_front(&p);
1042 static int str_mem_cb(void *data, const char *mem)
1044 struct thread_data *td = data;
1046 if (td->mem_type == MEM_MMAPHUGE || td->mem_type == MEM_MMAP) {
1047 td->mmapfile = get_opt_postfix(mem);
1048 if (td->mem_type == MEM_MMAPHUGE && !td->mmapfile) {
1049 log_err("fio: mmaphuge:/path/to/file\n");
1057 static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
1063 #ifdef FIO_HAVE_IOPRIO
1064 static int str_prioclass_cb(void *data, unsigned int *val)
1066 struct thread_data *td = data;
1068 td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
1072 static int str_prio_cb(void *data, unsigned int *val)
1074 struct thread_data *td = data;
1081 static int str_exitall_cb(void)
1083 exitall_on_terminate = 1;
1087 static int str_cpumask_cb(void *data, unsigned int *val)
1089 struct thread_data *td = data;
1091 fill_cpu_mask(td->cpumask, *val);
1095 static int str_fst_cb(void *data, const char *str)
1097 struct thread_data *td = data;
1098 char *nr = get_opt_postfix(str);
1100 td->file_service_nr = 1;
1102 td->file_service_nr = atoi(nr);
1107 static int str_filename_cb(void *data, const char *input)
1109 struct thread_data *td = data;
1110 char *fname, *str, *p;
1113 p = str = strdup(input);
1115 strip_blank_front(&str);
1116 strip_blank_end(str);
1118 while ((fname = strsep(&str, ":")) != NULL) {
1121 add_file(td, fname);
1129 static int str_directory_cb(void *data, const char fio_unused *str)
1131 struct thread_data *td = data;
1134 if (lstat(td->directory, &sb) < 0) {
1135 log_err("fio: %s is not a directory\n", td->directory);
1136 td_verror(td, errno, "lstat");
1139 if (!S_ISDIR(sb.st_mode)) {
1140 log_err("fio: %s is not a directory\n", td->directory);
1148 * This is our [ini] type file parser.
1150 static int parse_jobs_ini(char *file, int stonewall_flag)
1152 unsigned int global;
1153 struct thread_data *td;
1154 char *string, *name;
1158 int ret = 0, stonewall;
1160 f = fopen(file, "r");
1162 perror("fopen job file");
1166 string = malloc(4096);
1168 memset(name, 0, 256);
1170 stonewall = stonewall_flag;
1172 p = fgets(string, 4095, f);
1175 if (is_empty_or_comment(p))
1177 if (sscanf(p, "[%255s]", name) != 1)
1180 global = !strncmp(name, "global", 6);
1182 name[strlen(name) - 1] = '\0';
1184 td = get_new_job(global, &def_thread);
1191 * Seperate multiple job files by a stonewall
1193 if (!global && stonewall) {
1194 td->stonewall = stonewall;
1199 while ((p = fgets(string, 4096, f)) != NULL) {
1200 if (is_empty_or_comment(p))
1203 strip_blank_front(&p);
1213 * Don't break here, continue parsing options so we
1214 * dump all the bad ones. Makes trial/error fixups
1215 * easier on the user.
1217 ret |= parse_option(p, options, td);
1222 ret = add_job(td, name, 0);
1224 log_err("fio: job %s dropped\n", name);
1235 static int fill_def_thread(void)
1237 memset(&def_thread, 0, sizeof(def_thread));
1239 if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
1240 perror("sched_getaffinity");
1245 * fill default options
1247 fill_default_options(&def_thread, options);
1249 def_thread.timeout = def_timeout;
1250 def_thread.write_bw_log = write_bw_log;
1251 def_thread.write_lat_log = write_lat_log;
1253 #ifdef FIO_HAVE_DISK_UTIL
1254 def_thread.do_disk_util = 1;
1260 static void usage(void)
1262 printf("%s\n", fio_version_string);
1263 printf("\t--output\tWrite output to file\n");
1264 printf("\t--timeout\tRuntime in seconds\n");
1265 printf("\t--latency-log\tGenerate per-job latency logs\n");
1266 printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
1267 printf("\t--minimal\tMinimal (terse) output\n");
1268 printf("\t--version\tPrint version info and exit\n");
1269 printf("\t--help\t\tPrint this page\n");
1270 printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of them\n");
1273 static int parse_cmd_line(int argc, char *argv[])
1275 struct thread_data *td = NULL;
1276 int c, ini_idx = 0, lidx, ret, dont_add_job = 0;
1278 while ((c = getopt_long_only(argc, argv, "", long_options, &lidx)) != -1) {
1281 def_timeout = atoi(optarg);
1290 f_out = fopen(optarg, "w+");
1292 perror("fopen output");
1304 ret = show_cmd_help(options, optarg);
1307 printf("%s\n", fio_version_string);
1309 case FIO_GETOPT_JOB: {
1310 const char *opt = long_options[lidx].name;
1313 if (!strncmp(opt, "name", 4) && td) {
1314 ret = add_job(td, td->name ?: "fio", 0);
1322 int global = !strncmp(val, "global", 6);
1324 td = get_new_job(global, &def_thread);
1329 ret = parse_cmd_option(opt, val, options, td);
1343 ret = add_job(td, td->name ?: "fio", 0);
1349 while (optind < argc) {
1351 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1352 ini_file[ini_idx - 1] = strdup(argv[optind]);
1359 static void free_shm(void)
1361 struct shmid_ds sbuf;
1364 shmdt((void *) threads);
1366 shmctl(shm_id, IPC_RMID, &sbuf);
1371 * The thread area is shared between the main process and the job
1372 * threads/processes. So setup a shared memory segment that will hold
1375 static int setup_thread_area(void)
1378 * 1024 is too much on some machines, scale max_jobs if
1379 * we get a failure that looks like too large a shm segment
1382 size_t size = max_jobs * sizeof(struct thread_data);
1384 shm_id = shmget(0, size, IPC_CREAT | 0600);
1387 if (errno != EINVAL) {
1398 threads = shmat(shm_id, NULL, 0);
1399 if (threads == (void *) -1) {
1409 * Copy the fio options into the long options map, so we mirror
1410 * job and cmd line options.
1412 static void dupe_job_options(void)
1414 struct fio_option *o;
1418 while (long_options[i].name)
1423 long_options[i].name = o->name;
1424 long_options[i].val = FIO_GETOPT_JOB;
1425 if (o->type == FIO_OPT_STR_SET)
1426 long_options[i].has_arg = no_argument;
1428 long_options[i].has_arg = required_argument;
1432 assert(i < FIO_JOB_OPTS + FIO_CMD_OPTS);
1436 int parse_options(int argc, char *argv[])
1443 options_init(options);
1447 if (setup_thread_area())
1449 if (fill_def_thread())
1452 job_files = parse_cmd_line(argc, argv);
1454 for (i = 0; i < job_files; i++) {
1455 if (fill_def_thread())
1457 if (parse_jobs_ini(ini_file[i], i))
1464 if (!thread_number) {
1465 log_err("No jobs defined(s)\n");