blob: d5813c60b22d39615bffed9333556918a5bedb65 [file] [log] [blame]
/*
* This file contains job initialization and setup functions.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <ctype.h>
#include <string.h>
#include <errno.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "fio.h"
#include "parse.h"
#include "smalloc.h"
#include "filehash.h"
#include "verify.h"
#include "profile.h"
#include "lib/getopt.h"
static char fio_version_string[] = "fio 1.55";
#define FIO_RANDSEED (0xb1899bedUL)
static char **ini_file;
static int max_jobs = MAX_JOBS;
static int dump_cmdline;
static struct thread_data def_thread;
struct thread_data *threads = NULL;
int exitall_on_terminate = 0;
int terse_output = 0;
int eta_print;
unsigned long long mlock_size = 0;
FILE *f_out = NULL;
FILE *f_err = NULL;
char **job_sections = NULL;
int nr_job_sections = 0;
char *exec_profile = NULL;
int warnings_fatal = 0;
int write_bw_log = 0;
int read_only = 0;
static int def_timeout;
static int write_lat_log;
static int prev_group_jobs;
unsigned long fio_debug = 0;
unsigned int fio_debug_jobno = -1;
unsigned int *fio_debug_jobp = NULL;
static char cmd_optstr[256];
/*
* Command line options. These will contain the above, plus a few
* extra that only pertain to fio itself and not jobs.
*/
static struct option l_opts[FIO_NR_OPTIONS] = {
{
.name = (char *) "output",
.has_arg = required_argument,
.val = 'o',
},
{
.name = (char *) "timeout",
.has_arg = required_argument,
.val = 't',
},
{
.name = (char *) "latency-log",
.has_arg = required_argument,
.val = 'l',
},
{
.name = (char *) "bandwidth-log",
.has_arg = required_argument,
.val = 'b',
},
{
.name = (char *) "minimal",
.has_arg = optional_argument,
.val = 'm',
},
{
.name = (char *) "version",
.has_arg = no_argument,
.val = 'v',
},
{
.name = (char *) "help",
.has_arg = no_argument,
.val = 'h',
},
{
.name = (char *) "cmdhelp",
.has_arg = optional_argument,
.val = 'c',
},
{
.name = (char *) "showcmd",
.has_arg = no_argument,
.val = 's',
},
{
.name = (char *) "readonly",
.has_arg = no_argument,
.val = 'r',
},
{
.name = (char *) "eta",
.has_arg = required_argument,
.val = 'e',
},
{
.name = (char *) "debug",
.has_arg = required_argument,
.val = 'd',
},
{
.name = (char *) "section",
.has_arg = required_argument,
.val = 'x',
},
{
.name = (char *) "alloc-size",
.has_arg = required_argument,
.val = 'a',
},
{
.name = (char *) "profile",
.has_arg = required_argument,
.val = 'p',
},
{
.name = (char *) "warnings-fatal",
.has_arg = no_argument,
.val = 'w',
},
{
.name = NULL,
},
};
FILE *get_f_out()
{
return f_out;
}
FILE *get_f_err()
{
return f_err;
}
/*
* Return a free job structure.
*/
static struct thread_data *get_new_job(int global, struct thread_data *parent)
{
struct thread_data *td;
if (global)
return &def_thread;
if (thread_number >= max_jobs) {
log_err("error: maximum number of jobs (%d) reached.\n",
max_jobs);
return NULL;
}
td = &threads[thread_number++];
*td = *parent;
td->o.uid = td->o.gid = -1U;
dup_files(td, parent);
options_mem_dupe(td);
profile_add_hooks(td);
td->thread_number = thread_number;
return td;
}
static void put_job(struct thread_data *td)
{
if (td == &def_thread)
return;
profile_td_exit(td);
if (td->error)
log_info("fio: %s\n", td->verror);
memset(&threads[td->thread_number - 1], 0, sizeof(*td));
thread_number--;
}
static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
{
unsigned int bs = td->o.min_bs[ddir];
unsigned long long bytes_per_sec;
assert(ddir_rw(ddir));
if (td->o.rate[ddir])
bytes_per_sec = td->o.rate[ddir];
else
bytes_per_sec = td->o.rate_iops[ddir] * bs;
if (!bytes_per_sec) {
log_err("rate lower than supported\n");
return -1;
}
td->rate_nsec_cycle[ddir] = 1000000000ULL / bytes_per_sec;
td->rate_pending_usleep[ddir] = 0;
return 0;
}
static int setup_rate(struct thread_data *td)
{
int ret = 0;
if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
ret = __setup_rate(td, DDIR_READ);
if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
ret |= __setup_rate(td, DDIR_WRITE);
return ret;
}
static int fixed_block_size(struct thread_options *o)
{
return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE];
}
/*
* Lazy way of fixing up options that depend on each other. We could also
* define option callback handlers, but this is easier.
*/
static int fixup_options(struct thread_data *td)
{
struct thread_options *o = &td->o;
int ret = 0;
#ifndef FIO_HAVE_PSHARED_MUTEX
if (!o->use_thread) {
log_info("fio: this platform does not support process shared"
" mutexes, forcing use of threads. Use the 'thread'"
" option to get rid of this warning.\n");
o->use_thread = 1;
ret = warnings_fatal;
}
#endif
if (o->write_iolog_file && o->read_iolog_file) {
log_err("fio: read iolog overrides write_iolog\n");
free(o->write_iolog_file);
o->write_iolog_file = NULL;
ret = warnings_fatal;
}
/*
* only really works for sequential io for now, and with 1 file
*/
if (o->zone_size && td_random(td) && o->open_files == 1)
o->zone_size = 0;
/*
* Reads can do overwrites, we always need to pre-create the file
*/
if (td_read(td) || td_rw(td))
o->overwrite = 1;
if (!o->min_bs[DDIR_READ])
o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
if (!o->max_bs[DDIR_READ])
o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
if (!o->min_bs[DDIR_WRITE])
o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
if (!o->max_bs[DDIR_WRITE])
o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
/*
* For random IO, allow blockalign offset other than min_bs.
*/
if (!o->ba[DDIR_READ] || !td_random(td))
o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
if (!o->ba[DDIR_WRITE] || !td_random(td))
o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE]) &&
!o->norandommap) {
log_err("fio: Any use of blockalign= turns off randommap\n");
o->norandommap = 1;
ret = warnings_fatal;
}
if (!o->file_size_high)
o->file_size_high = o->file_size_low;
if (o->norandommap && o->verify != VERIFY_NONE
&& !fixed_block_size(o)) {
log_err("fio: norandommap given for variable block sizes, "
"verify disabled\n");
o->verify = VERIFY_NONE;
ret = warnings_fatal;
}
if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
log_err("fio: bs_unaligned may not work with raw io\n");
/*
* thinktime_spin must be less than thinktime
*/
if (o->thinktime_spin > o->thinktime)
o->thinktime_spin = o->thinktime;
/*
* The low water mark cannot be bigger than the iodepth
*/
if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
/*
* syslet work around - if the workload is sequential,
* we want to let the queue drain all the way down to
* avoid seeking between async threads
*/
if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
o->iodepth_low = 1;
else
o->iodepth_low = o->iodepth;
}
/*
* If batch number isn't set, default to the same as iodepth
*/
if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
o->iodepth_batch = o->iodepth;
if (o->nr_files > td->files_index)
o->nr_files = td->files_index;
if (o->open_files > o->nr_files || !o->open_files)
o->open_files = o->nr_files;
if (((o->rate[0] + o->rate[1]) && (o->rate_iops[0] + o->rate_iops[1]))||
((o->ratemin[0] + o->ratemin[1]) && (o->rate_iops_min[0] +
o->rate_iops_min[1]))) {
log_err("fio: rate and rate_iops are mutually exclusive\n");
ret = 1;
}
if ((o->rate[0] < o->ratemin[0]) || (o->rate[1] < o->ratemin[1]) ||
(o->rate_iops[0] < o->rate_iops_min[0]) ||
(o->rate_iops[1] < o->rate_iops_min[1])) {
log_err("fio: minimum rate exceeds rate\n");
ret = 1;
}
if (!o->timeout && o->time_based) {
log_err("fio: time_based requires a runtime/timeout setting\n");
o->time_based = 0;
ret = warnings_fatal;
}
if (o->fill_device && !o->size)
o->size = -1ULL;
if (o->verify != VERIFY_NONE) {
if (td_write(td) && o->do_verify && o->numjobs > 1) {
log_info("Multiple writers may overwrite blocks that "
"belong to other jobs. This can cause "
"verification failures.\n");
ret = warnings_fatal;
}
o->refill_buffers = 1;
if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
!o->verify_interval)
o->verify_interval = o->min_bs[DDIR_WRITE];
}
if (o->pre_read) {
o->invalidate_cache = 0;
if (td->io_ops->flags & FIO_PIPEIO) {
log_info("fio: cannot pre-read files with an IO engine"
" that isn't seekable. Pre-read disabled.\n");
ret = warnings_fatal;
}
}
#ifndef FIO_HAVE_FDATASYNC
if (o->fdatasync_blocks) {
log_info("fio: this platform does not support fdatasync()"
" falling back to using fsync(). Use the 'fsync'"
" option instead of 'fdatasync' to get rid of"
" this warning\n");
o->fsync_blocks = o->fdatasync_blocks;
o->fdatasync_blocks = 0;
ret = warnings_fatal;
}
#endif
return ret;
}
/*
* This function leaks the buffer
*/
static char *to_kmg(unsigned int val)
{
char *buf = malloc(32);
char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
char *p = post;
do {
if (val & 1023)
break;
val >>= 10;
p++;
} while (*p);
snprintf(buf, 31, "%u%c", val, *p);
return buf;
}
/* External engines are specified by "external:name.o") */
static const char *get_engine_name(const char *str)
{
char *p = strstr(str, ":");
if (!p)
return str;
p++;
strip_blank_front(&p);
strip_blank_end(p);
return p;
}
static int exists_and_not_file(const char *filename)
{
struct stat sb;
if (lstat(filename, &sb) == -1)
return 0;
/* \\.\ is the device namespace in Windows, where every file
* is a device node */
if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
return 0;
return 1;
}
static void td_fill_rand_seeds_os(struct thread_data *td)
{
os_random_seed(td->rand_seeds[0], &td->bsrange_state);
os_random_seed(td->rand_seeds[1], &td->verify_state);
os_random_seed(td->rand_seeds[2], &td->rwmix_state);
if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
os_random_seed(td->rand_seeds[3], &td->next_file_state);
os_random_seed(td->rand_seeds[5], &td->file_size_state);
os_random_seed(td->rand_seeds[6], &td->trim_state);
if (!td_random(td))
return;
if (td->o.rand_repeatable)
td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
os_random_seed(td->rand_seeds[4], &td->random_state);
}
static void td_fill_rand_seeds_internal(struct thread_data *td)
{
init_rand_seed(&td->__bsrange_state, td->rand_seeds[0]);
init_rand_seed(&td->__verify_state, td->rand_seeds[1]);
init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]);
if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
init_rand_seed(&td->__next_file_state, td->rand_seeds[3]);
init_rand_seed(&td->__file_size_state, td->rand_seeds[5]);
init_rand_seed(&td->__trim_state, td->rand_seeds[6]);
if (!td_random(td))
return;
if (td->o.rand_repeatable)
td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
init_rand_seed(&td->__random_state, td->rand_seeds[4]);
}
void td_fill_rand_seeds(struct thread_data *td)
{
if (td->o.use_os_rand)
td_fill_rand_seeds_os(td);
else
td_fill_rand_seeds_internal(td);
}
/*
* Initialize the various random states we need (random io, block size ranges,
* read/write mix, etc).
*/
static int init_random_state(struct thread_data *td)
{
int fd;
fd = open("/dev/urandom", O_RDONLY);
if (fd == -1) {
td_verror(td, errno, "open");
return 1;
}
if (read(fd, td->rand_seeds, sizeof(td->rand_seeds)) <
(int) sizeof(td->rand_seeds)) {
td_verror(td, EIO, "read");
close(fd);
return 1;
}
close(fd);
td_fill_rand_seeds(td);
return 0;
}
/*
* Adds a job to the list of things todo. Sanitizes the various options
* to make sure we don't have conflicts, and initializes various
* members of td.
*/
static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
{
const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
"randread", "randwrite", "randrw" };
unsigned int i;
const char *engine;
char fname[PATH_MAX];
int numjobs, file_alloced;
/*
* the def_thread is just for options, it's not a real job
*/
if (td == &def_thread)
return 0;
/*
* if we are just dumping the output command line, don't add the job
*/
if (dump_cmdline) {
put_job(td);
return 0;
}
if (profile_td_init(td))
goto err;
engine = get_engine_name(td->o.ioengine);
td->io_ops = load_ioengine(td, engine);
if (!td->io_ops) {
log_err("fio: failed to load engine %s\n", engine);
goto err;
}
if (td->o.use_thread)
nr_thread++;
else
nr_process++;
if (td->o.odirect)
td->io_ops->flags |= FIO_RAWIO;
file_alloced = 0;
if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
file_alloced = 1;
if (td->o.nr_files == 1 && exists_and_not_file(jobname))
add_file(td, jobname);
else {
for (i = 0; i < td->o.nr_files; i++) {
sprintf(fname, "%s.%d.%d", jobname,
td->thread_number, i);
add_file(td, fname);
}
}
}
if (fixup_options(td))
goto err;
if (td->io_ops->flags & FIO_DISKLESSIO) {
struct fio_file *f;
for_each_file(td, f, i)
f->real_file_size = -1ULL;
}
td->mutex = fio_mutex_init(0);
td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
td->ts.lat_stat[0].min_val = td->ts.lat_stat[1].min_val = ULONG_MAX;
td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
td->ddir_seq_nr = td->o.ddir_seq_nr;
if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
prev_group_jobs = 0;
groupid++;
}
td->groupid = groupid;
prev_group_jobs++;
if (init_random_state(td))
goto err;
if (setup_rate(td))
goto err;
if (td->o.write_lat_log) {
setup_log(&td->ts.lat_log);
setup_log(&td->ts.slat_log);
setup_log(&td->ts.clat_log);
}
if (td->o.write_bw_log)
setup_log(&td->ts.bw_log);
if (!td->o.name)
td->o.name = strdup(jobname);
if (!terse_output) {
if (!job_add_num) {
if (!strcmp(td->io_ops->name, "cpuio")) {
log_info("%s: ioengine=cpu, cpuload=%u,"
" cpucycle=%u\n", td->o.name,
td->o.cpuload,
td->o.cpucycle);
} else {
char *c1, *c2, *c3, *c4;
c1 = to_kmg(td->o.min_bs[DDIR_READ]);
c2 = to_kmg(td->o.max_bs[DDIR_READ]);
c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s,"
" ioengine=%s, iodepth=%u\n",
td->o.name, td->groupid,
ddir_str[td->o.td_ddir],
c1, c2, c3, c4,
td->io_ops->name,
td->o.iodepth);
free(c1);
free(c2);
free(c3);
free(c4);
}
} else if (job_add_num == 1)
log_info("...\n");
}
/*
* recurse add identical jobs, clear numjobs and stonewall options
* as they don't apply to sub-jobs
*/
numjobs = td->o.numjobs;
while (--numjobs) {
struct thread_data *td_new = get_new_job(0, td);
if (!td_new)
goto err;
td_new->o.numjobs = 1;
td_new->o.stonewall = 0;
td_new->o.new_group = 0;
if (file_alloced) {
td_new->o.filename = NULL;
td_new->files_index = 0;
td_new->files_size = 0;
td_new->files = NULL;
}
job_add_num = numjobs - 1;
if (add_job(td_new, jobname, job_add_num))
goto err;
}
return 0;
err:
put_job(td);
return -1;
}
/*
* Parse as if 'o' was a command line
*/
void add_job_opts(const char **o)
{
struct thread_data *td, *td_parent;
int i, in_global = 1;
char jobname[32];
i = 0;
td_parent = td = NULL;
while (o[i]) {
if (!strncmp(o[i], "name", 4)) {
in_global = 0;
if (td)
add_job(td, jobname, 0);
td = NULL;
sprintf(jobname, "%s", o[i] + 5);
}
if (in_global && !td_parent)
td_parent = get_new_job(1, &def_thread);
else if (!in_global && !td) {
if (!td_parent)
td_parent = &def_thread;
td = get_new_job(0, td_parent);
}
if (in_global)
fio_options_parse(td_parent, (char **) &o[i], 1);
else
fio_options_parse(td, (char **) &o[i], 1);
i++;
}
if (td)
add_job(td, jobname, 0);
}
static int skip_this_section(const char *name)
{
int i;
if (!nr_job_sections)
return 0;
if (!strncmp(name, "global", 6))
return 0;
for (i = 0; i < nr_job_sections; i++)
if (!strcmp(job_sections[i], name))
return 0;
return 1;
}
static int is_empty_or_comment(char *line)
{
unsigned int i;
for (i = 0; i < strlen(line); i++) {
if (line[i] == ';')
return 1;
if (line[i] == '#')
return 1;
if (!isspace(line[i]) && !iscntrl(line[i]))
return 0;
}
return 1;
}
/*
* This is our [ini] type file parser.
*/
static int parse_jobs_ini(char *file, int stonewall_flag)
{
unsigned int global;
struct thread_data *td;
char *string, *name;
FILE *f;
char *p;
int ret = 0, stonewall;
int first_sect = 1;
int skip_fgets = 0;
int inside_skip = 0;
char **opts;
int i, alloc_opts, num_opts;
if (!strcmp(file, "-"))
f = stdin;
else
f = fopen(file, "r");
if (!f) {
perror("fopen job file");
return 1;
}
string = malloc(4096);
/*
* it's really 256 + small bit, 280 should suffice
*/
name = malloc(280);
memset(name, 0, 280);
alloc_opts = 8;
opts = malloc(sizeof(char *) * alloc_opts);
num_opts = 0;
stonewall = stonewall_flag;
do {
/*
* if skip_fgets is set, we already have loaded a line we
* haven't handled.
*/
if (!skip_fgets) {
p = fgets(string, 4095, f);
if (!p)
break;
}
skip_fgets = 0;
strip_blank_front(&p);
strip_blank_end(p);
if (is_empty_or_comment(p))
continue;
if (sscanf(p, "[%255[^\n]]", name) != 1) {
if (inside_skip)
continue;
log_err("fio: option <%s> outside of [] job section\n",
p);
break;
}
name[strlen(name) - 1] = '\0';
if (skip_this_section(name)) {
inside_skip = 1;
continue;
} else
inside_skip = 0;
global = !strncmp(name, "global", 6);
if (dump_cmdline) {
if (first_sect)
log_info("fio ");
if (!global)
log_info("--name=%s ", name);
first_sect = 0;
}
td = get_new_job(global, &def_thread);
if (!td) {
ret = 1;
break;
}
/*
* Seperate multiple job files by a stonewall
*/
if (!global && stonewall) {
td->o.stonewall = stonewall;
stonewall = 0;
}
num_opts = 0;
memset(opts, 0, alloc_opts * sizeof(char *));
while ((p = fgets(string, 4096, f)) != NULL) {
if (is_empty_or_comment(p))
continue;
strip_blank_front(&p);
/*
* new section, break out and make sure we don't
* fgets() a new line at the top.
*/
if (p[0] == '[') {
skip_fgets = 1;
break;
}
strip_blank_end(p);
if (num_opts == alloc_opts) {
alloc_opts <<= 1;
opts = realloc(opts,
alloc_opts * sizeof(char *));
}
opts[num_opts] = strdup(p);
num_opts++;
}
ret = fio_options_parse(td, opts, num_opts);
if (!ret) {
if (dump_cmdline)
for (i = 0; i < num_opts; i++)
log_info("--%s ", opts[i]);
ret = add_job(td, name, 0);
} else {
log_err("fio: job %s dropped\n", name);
put_job(td);
}
for (i = 0; i < num_opts; i++)
free(opts[i]);
num_opts = 0;
} while (!ret);
if (dump_cmdline)
log_info("\n");
for (i = 0; i < num_opts; i++)
free(opts[i]);
free(string);
free(name);
free(opts);
if (f != stdin)
fclose(f);
return ret;
}
static int fill_def_thread(void)
{
memset(&def_thread, 0, sizeof(def_thread));
fio_getaffinity(getpid(), &def_thread.o.cpumask);
/*
* fill default options
*/
fio_fill_default_options(&def_thread);
def_thread.o.timeout = def_timeout;
return 0;
}
static void free_shm(void)
{
struct shmid_ds sbuf;
if (threads) {
void *tp = threads;
threads = NULL;
file_hash_exit();
fio_debug_jobp = NULL;
shmdt(tp);
shmctl(shm_id, IPC_RMID, &sbuf);
}
scleanup();
}
/*
* The thread area is shared between the main process and the job
* threads/processes. So setup a shared memory segment that will hold
* all the job info. We use the end of the region for keeping track of
* open files across jobs, for file sharing.
*/
static int setup_thread_area(void)
{
void *hash;
/*
* 1024 is too much on some machines, scale max_jobs if
* we get a failure that looks like too large a shm segment
*/
do {
size_t size = max_jobs * sizeof(struct thread_data);
size += file_hash_size;
size += sizeof(unsigned int);
shm_id = shmget(0, size, IPC_CREAT | 0600);
if (shm_id != -1)
break;
if (errno != EINVAL) {
perror("shmget");
break;
}
max_jobs >>= 1;
} while (max_jobs);
if (shm_id == -1)
return 1;
threads = shmat(shm_id, NULL, 0);
if (threads == (void *) -1) {
perror("shmat");
return 1;
}
memset(threads, 0, max_jobs * sizeof(struct thread_data));
hash = (void *) threads + max_jobs * sizeof(struct thread_data);
fio_debug_jobp = (void *) hash + file_hash_size;
*fio_debug_jobp = -1;
file_hash_init(hash);
atexit(free_shm);
return 0;
}
static void usage(const char *name)
{
printf("%s [options] [job options] <job file(s)>\n", name);
printf("\t--debug=options\tEnable debug logging\n");
printf("\t--output\tWrite output to file\n");
printf("\t--timeout\tRuntime in seconds\n");
printf("\t--latency-log\tGenerate per-job latency logs\n");
printf("\t--bandwidth-log\tGenerate per-job bandwidth logs\n");
printf("\t--minimal\tMinimal (terse) output\n");
printf("\t--version\tPrint version info and exit\n");
printf("\t--help\t\tPrint this page\n");
printf("\t--cmdhelp=cmd\tPrint command help, \"all\" for all of"
" them\n");
printf("\t--showcmd\tTurn a job file into command line options\n");
printf("\t--eta=when\tWhen ETA estimate should be printed\n");
printf("\t \tMay be \"always\", \"never\" or \"auto\"\n");
printf("\t--readonly\tTurn on safety read-only checks, preventing"
" writes\n");
printf("\t--section=name\tOnly run specified section in job file\n");
printf("\t--alloc-size=kb\tSet smalloc pool to this size in kb"
" (def 1024)\n");
printf("\t--warnings-fatal Fio parser warnings are fatal\n");
printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
printf("\n Jens Axboe <jaxboe@fusionio.com>\n");
}
#ifdef FIO_INC_DEBUG
struct debug_level debug_levels[] = {
{ .name = "process", .shift = FD_PROCESS, },
{ .name = "file", .shift = FD_FILE, },
{ .name = "io", .shift = FD_IO, },
{ .name = "mem", .shift = FD_MEM, },
{ .name = "blktrace", .shift = FD_BLKTRACE },
{ .name = "verify", .shift = FD_VERIFY },
{ .name = "random", .shift = FD_RANDOM },
{ .name = "parse", .shift = FD_PARSE },
{ .name = "diskutil", .shift = FD_DISKUTIL },
{ .name = "job", .shift = FD_JOB },
{ .name = "mutex", .shift = FD_MUTEX },
{ .name = "profile", .shift = FD_PROFILE },
{ .name = "time", .shift = FD_TIME },
{ .name = NULL, },
};
static int set_debug(const char *string)
{
struct debug_level *dl;
char *p = (char *) string;
char *opt;
int i;
if (!strcmp(string, "?") || !strcmp(string, "help")) {
log_info("fio: dumping debug options:");
for (i = 0; debug_levels[i].name; i++) {
dl = &debug_levels[i];
log_info("%s,", dl->name);
}
log_info("all\n");
return 1;
}
while ((opt = strsep(&p, ",")) != NULL) {
int found = 0;
if (!strncmp(opt, "all", 3)) {
log_info("fio: set all debug options\n");
fio_debug = ~0UL;
continue;
}
for (i = 0; debug_levels[i].name; i++) {
dl = &debug_levels[i];
found = !strncmp(opt, dl->name, strlen(dl->name));
if (!found)
continue;
if (dl->shift == FD_JOB) {
opt = strchr(opt, ':');
if (!opt) {
log_err("fio: missing job number\n");
break;
}
opt++;
fio_debug_jobno = atoi(opt);
log_info("fio: set debug jobno %d\n",
fio_debug_jobno);
} else {
log_info("fio: set debug option %s\n", opt);
fio_debug |= (1UL << dl->shift);
}
break;
}
if (!found)
log_err("fio: debug mask %s not found\n", opt);
}
return 0;
}
#else
static int set_debug(const char *string)
{
log_err("fio: debug tracing not included in build\n");
return 1;
}
#endif
static void fio_options_fill_optstring(void)
{
char *ostr = cmd_optstr;
int i, c;
c = i = 0;
while (l_opts[i].name) {
ostr[c++] = l_opts[i].val;
if (l_opts[i].has_arg == required_argument)
ostr[c++] = ':';
else if (l_opts[i].has_arg == optional_argument) {
ostr[c++] = ':';
ostr[c++] = ':';
}
i++;
}
ostr[c] = '\0';
}
static int parse_cmd_line(int argc, char *argv[])
{
struct thread_data *td = NULL;
int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
char *ostr = cmd_optstr;
while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
switch (c) {
case 'a':
smalloc_pool_size = atoi(optarg);
break;
case 't':
def_timeout = atoi(optarg);
break;
case 'l':
write_lat_log = 1;
break;
case 'b':
write_bw_log = 1;
break;
case 'o':
f_out = fopen(optarg, "w+");
if (!f_out) {
perror("fopen output");
exit(1);
}
f_err = f_out;
break;
case 'm':
terse_output = 1;
break;
case 'h':
usage(argv[0]);
exit(0);
case 'c':
exit(fio_show_option_help(optarg));
case 's':
dump_cmdline = 1;
break;
case 'r':
read_only = 1;
break;
case 'v':
log_info("%s\n", fio_version_string);
exit(0);
case 'e':
if (!strcmp("always", optarg))
eta_print = FIO_ETA_ALWAYS;
else if (!strcmp("never", optarg))
eta_print = FIO_ETA_NEVER;
break;
case 'd':
if (set_debug(optarg))
do_exit++;
break;
case 'x': {
size_t new_size;
if (!strcmp(optarg, "global")) {
log_err("fio: can't use global as only "
"section\n");
do_exit++;
exit_val = 1;
break;
}
new_size = (nr_job_sections + 1) * sizeof(char *);
job_sections = realloc(job_sections, new_size);
job_sections[nr_job_sections] = strdup(optarg);
nr_job_sections++;
break;
}
case 'p':
exec_profile = strdup(optarg);
break;
case FIO_GETOPT_JOB: {
const char *opt = l_opts[lidx].name;
char *val = optarg;
if (!strncmp(opt, "name", 4) && td) {
ret = add_job(td, td->o.name ?: "fio", 0);
if (ret)
return 0;
td = NULL;
}
if (!td) {
int is_section = !strncmp(opt, "name", 4);
int global = 0;
if (!is_section || !strncmp(val, "global", 6))
global = 1;
if (is_section && skip_this_section(val))
continue;
td = get_new_job(global, &def_thread);
if (!td)
return 0;
}
ret = fio_cmd_option_parse(td, opt, val);
break;
}
case 'w':
warnings_fatal = 1;
break;
default:
do_exit++;
exit_val = 1;
break;
}
}
if (do_exit)
exit(exit_val);
if (td) {
if (!ret)
ret = add_job(td, td->o.name ?: "fio", 0);
}
while (optind < argc) {
ini_idx++;
ini_file = realloc(ini_file, ini_idx * sizeof(char *));
ini_file[ini_idx - 1] = strdup(argv[optind]);
optind++;
}
return ini_idx;
}
int parse_options(int argc, char *argv[])
{
int job_files, i;
f_out = stdout;
f_err = stderr;
fio_options_fill_optstring();
fio_options_dup_and_init(l_opts);
if (setup_thread_area())
return 1;
if (fill_def_thread())
return 1;
job_files = parse_cmd_line(argc, argv);
for (i = 0; i < job_files; i++) {
if (fill_def_thread())
return 1;
if (parse_jobs_ini(ini_file[i], i))
return 1;
free(ini_file[i]);
}
free(ini_file);
options_mem_free(&def_thread);
if (!thread_number) {
if (dump_cmdline)
return 0;
if (exec_profile)
return 0;
log_err("No jobs(s) defined\n\n");
usage(argv[0]);
return 1;
}
if (def_thread.o.gtod_offload) {
fio_gtod_init();
fio_gtod_offload = 1;
fio_gtod_cpu = def_thread.o.gtod_cpu;
}
log_info("%s\n", fio_version_string);
return 0;
}