static int internal_init(int (*init_once)(void)) {
uint32_t seed;
int err;
if ((err = get_random_seed(&seed)))
return err;
init_random_state(&random_state, seed);
#if defined(GENESIS_OS_WINDOWS)
unsigned __int64 frequency;
if (QueryPerformanceFrequency((LARGE_INTEGER*) &frequency)) {
win32_time_resolution = 1.0 / (double) frequency;
} else {
return GenesisErrorSystemResources;
}
GetSystemInfo(&win32_system_info);
page_size = win32_system_info.dwAllocationGranularity;
#else
page_size = getpagesize();
#if defined(__MACH__)
host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &cclock);
#endif
#endif
if (init_once && (err = init_once())) {
return err;
}
return 0;
}
static int setup_random_seeds(struct thread_data *td)
{
unsigned long seed;
unsigned int i;
if (!td->o.rand_repeatable)
return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds));
for (seed = 0x89, i = 0; i < 4; i++)
seed *= 0x9e370001UL;
for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
td->rand_seeds[i] = seed;
seed *= 0x9e370001UL;
}
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;
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;
if (ioengine_load(td))
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;
flow_init_job(td);
/*
* IO engines only need this for option callbacks, and the address may
* change in subprocesses.
*/
if (td->eo)
*(struct thread_data **)td->eo = NULL;
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_percentiles = td->o.clat_percentiles;
if (td->o.overwrite_plist)
memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
else
memcpy(td->ts.percentile_list, def_percentile_list, sizeof(def_percentile_list));
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, td->rand_seeds, sizeof(td->rand_seeds))) {
td_verror(td, errno, "init_random_state");
goto err;
}
if (setup_rate(td))
goto err;
if (td->o.write_lat_log) {
setup_log(&td->lat_log, td->o.log_avg_msec);
setup_log(&td->slat_log, td->o.log_avg_msec);
setup_log(&td->clat_log, td->o.log_avg_msec);
}
if (td->o.write_bw_log)
setup_log(&td->bw_log, td->o.log_avg_msec);
if (td->o.write_iops_log)
setup_log(&td->iops_log, td->o.log_avg_msec);
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, 1);
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;
}
