[fio.git] / libfio.c

/*
 * fio - the flexible io tester
 *
 * Copyright (C) 2005 Jens Axboe <axboe@suse.de>
 * Copyright (C) 2006-2012 Jens Axboe <axboe@kernel.dk>
 *
 * The license below covers all files distributed with fio unless otherwise
 * noted in the file itself.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include <string.h>
#include <sys/types.h>
#include <signal.h>
#include <stdint.h>
#include <locale.h>
#include <fcntl.h>

#include "fio.h"
#include "smalloc.h"
#include "os/os.h"
#include "filelock.h"
#include "helper_thread.h"
#include "filehash.h"

/*
 * Just expose an empty list, if the OS does not support disk util stats
 */
#ifndef FIO_HAVE_DISK_UTIL
FLIST_HEAD(disk_list);
#endif

unsigned long arch_flags = 0;

uintptr_t page_mask = 0;
uintptr_t page_size = 0;

/* see os/os.h */
static const char *fio_os_strings[os_nr] = {
	"Invalid",
	"Linux",
	"AIX",
	"FreeBSD",
	"HP-UX",
	"OSX",
	"NetBSD",
	"OpenBSD",
	"Solaris",
	"Windows",
	"Android",
	"DragonFly",
};

/* see arch/arch.h */
static const char *fio_arch_strings[arch_nr] = {
	"Invalid",
	"x86-64",
	"x86",
	"ppc",
	"ia64",
	"s390",
	"alpha",
	"sparc",
	"sparc64",
	"arm",
	"sh",
	"hppa",
	"mips",
	"aarch64",
	"generic"
};

static void reset_io_counters(struct thread_data *td, int all)
{
	int ddir;

	if (all) {
		for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
			td->stat_io_bytes[ddir] = 0;
			td->this_io_bytes[ddir] = 0;
			td->stat_io_blocks[ddir] = 0;
			td->this_io_blocks[ddir] = 0;
			td->rate_bytes[ddir] = 0;
			td->rate_blocks[ddir] = 0;
			td->bytes_done[ddir] = 0;
			td->rate_io_issue_bytes[ddir] = 0;
			td->rate_next_io_time[ddir] = 0;
		}
	}

	td->zone_bytes = 0;

	td->last_was_sync = 0;
	td->rwmix_issues = 0;

	/*
	 * reset file done count if we are to start over
	 */
	if (td->o.time_based || td->o.loops || td->o.do_verify)
		td->nr_done_files = 0;
}

void clear_io_state(struct thread_data *td, int all)
{
	struct fio_file *f;
	unsigned int i;

	reset_io_counters(td, all);

	close_files(td);
	for_each_file(td, f, i) {
		fio_file_clear_done(f);
		f->file_offset = get_start_offset(td, f);
	}

	/*
	 * Re-Seed random number generator if rand_repeatable is true
	 */
	if (td->o.rand_repeatable)
		td_fill_rand_seeds(td);
}

void reset_all_stats(struct thread_data *td)
{
	int i;

	reset_io_counters(td, 1);

	for (i = 0; i < DDIR_RWDIR_CNT; i++) {
		td->io_bytes[i] = 0;
		td->io_blocks[i] = 0;
		td->io_issues[i] = 0;
		td->ts.total_io_u[i] = 0;
		td->ts.runtime[i] = 0;
		td->rwmix_issues = 0;
	}

	set_epoch_time(td, td->o.log_unix_epoch);
	memcpy(&td->start, &td->epoch, sizeof(struct timeval));
	memcpy(&td->iops_sample_time, &td->epoch, sizeof(struct timeval));
	memcpy(&td->bw_sample_time, &td->epoch, sizeof(struct timeval));

	lat_target_reset(td);
	clear_rusage_stat(td);
	helper_reset();
}

void reset_fio_state(void)
{
	groupid = 0;
	thread_number = 0;
	stat_number = 0;
	done_secs = 0;
}

const char *fio_get_os_string(int nr)
{
	if (nr < os_nr)
		return fio_os_strings[nr];

	return NULL;
}

const char *fio_get_arch_string(int nr)
{
	if (nr < arch_nr)
		return fio_arch_strings[nr];

	return NULL;
}

static const char *td_runstates[] = {
	"NOT_CREATED",
	"CREATED",
	"INITIALIZED",
	"RAMP",
	"SETTING_UP",
	"RUNNING",
	"PRE_READING",
	"VERIFYING",
	"FSYNCING",
	"FINISHING",
	"EXITED",
	"REAPED",
};

const char *runstate_to_name(int runstate)
{
	compiletime_assert(TD_LAST == 12, "td runstate list");
	if (runstate >= 0 && runstate < TD_LAST)
		return td_runstates[runstate];

	return "invalid";
}

void td_set_runstate(struct thread_data *td, int runstate)
{
	if (td->runstate == runstate)
		return;

	dprint(FD_PROCESS, "pid=%d: runstate %s -> %s\n", (int) td->pid,
						runstate_to_name(td->runstate),
						runstate_to_name(runstate));
	td->runstate = runstate;
}

int td_bump_runstate(struct thread_data *td, int new_state)
{
	int old_state = td->runstate;

	td_set_runstate(td, new_state);
	return old_state;
}

void td_restore_runstate(struct thread_data *td, int old_state)
{
	td_set_runstate(td, old_state);
}

void fio_mark_td_terminate(struct thread_data *td)
{
	fio_gettime(&td->terminate_time, NULL);
	write_barrier();
	td->terminate = 1;
}

void fio_terminate_threads(unsigned int group_id)
{
	struct thread_data *td;
	pid_t pid = getpid();
	int i;

	dprint(FD_PROCESS, "terminate group_id=%d\n", group_id);

	for_each_td(td, i) {
		if (group_id == TERMINATE_ALL || group_id == td->groupid) {
			dprint(FD_PROCESS, "setting terminate on %s/%d\n",
						td->o.name, (int) td->pid);

			if (td->terminate)
				continue;

			fio_mark_td_terminate(td);
			td->o.start_delay = 0;

			/*
			 * if the thread is running, just let it exit
			 */
			if (!td->pid || pid == td->pid)
				continue;
			else if (td->runstate < TD_RAMP)
				kill(td->pid, SIGTERM);
			else {
				struct ioengine_ops *ops = td->io_ops;

				if (ops && ops->terminate)
					ops->terminate(td);
			}
		}
	}
}

int fio_running_or_pending_io_threads(void)
{
	struct thread_data *td;
	int i;
	int nr_io_threads = 0;

	for_each_td(td, i) {
		if (td->flags & TD_F_NOIO)
			continue;
		nr_io_threads++;
		if (td->runstate < TD_EXITED)
			return 1;
	}

	if (!nr_io_threads)
		return -1; /* we only had cpuio threads to begin with */
	return 0;
}

int fio_set_fd_nonblocking(int fd, const char *who)
{
	int flags;

	flags = fcntl(fd, F_GETFL);
	if (flags < 0)
		log_err("fio: %s failed to get file flags: %s\n", who, strerror(errno));
	else {
		int new_flags = flags | O_NONBLOCK;

		new_flags = fcntl(fd, F_SETFL, new_flags);
		if (new_flags < 0)
			log_err("fio: %s failed to get file flags: %s\n", who, strerror(errno));
	}

	return flags;
}

static int endian_check(void)
{
	union {
		uint8_t c[8];
		uint64_t v;
	} u;
	int le = 0, be = 0;

	u.v = 0x12;
	if (u.c[7] == 0x12)
		be = 1;
	else if (u.c[0] == 0x12)
		le = 1;

#if defined(CONFIG_LITTLE_ENDIAN)
	if (be)
		return 1;
#elif defined(CONFIG_BIG_ENDIAN)
	if (le)
		return 1;
#else
	return 1;
#endif

	if (!le && !be)
		return 1;

	return 0;
}

int initialize_fio(char *envp[])
{
	long ps;

	/*
	 * We need these to be properly 64-bit aligned, otherwise we
	 * can run into problems on archs that fault on unaligned fp
	 * access (ARM).
	 */
	compiletime_assert((offsetof(struct thread_stat, percentile_list) % 8) == 0, "stat percentile_list");
	compiletime_assert((offsetof(struct thread_stat, total_run_time) % 8) == 0, "total_run_time");
	compiletime_assert((offsetof(struct thread_stat, total_err_count) % 8) == 0, "total_err_count");
	compiletime_assert((offsetof(struct thread_stat, latency_percentile) % 8) == 0, "stat latency_percentile");
	compiletime_assert((offsetof(struct thread_options_pack, zipf_theta) % 8) == 0, "zipf_theta");
	compiletime_assert((offsetof(struct thread_options_pack, pareto_h) % 8) == 0, "pareto_h");
	compiletime_assert((offsetof(struct thread_options_pack, percentile_list) % 8) == 0, "percentile_list");
	compiletime_assert((offsetof(struct thread_options_pack, latency_percentile) % 8) == 0, "latency_percentile");

	if (endian_check()) {
		log_err("fio: endianness settings appear wrong.\n");
		log_err("fio: please report this to fio@vger.kernel.org\n");
		return 1;
	}

#if !defined(CONFIG_GETTIMEOFDAY) && !defined(CONFIG_CLOCK_GETTIME)
#error "No available clock source!"
#endif

	arch_init(envp);

	sinit();

	if (fio_filelock_init()) {
		log_err("fio: failed initializing filelock subsys\n");
		return 1;
	}

	file_hash_init();

	/*
	 * We need locale for number printing, if it isn't set then just
	 * go with the US format.
	 */
	if (!getenv("LC_NUMERIC"))
		setlocale(LC_NUMERIC, "en_US");

	ps = sysconf(_SC_PAGESIZE);
	if (ps < 0) {
		log_err("Failed to get page size\n");
		return 1;
	}

	page_size = ps;
	page_mask = ps - 1;

	fio_keywords_init();
	return 0;
}

void deinitialize_fio(void)
{
	fio_keywords_exit();
}
Commit	Line	Data
2e1df07d JA	1	/*
	2	* fio - the flexible io tester
	3	*
	4	* Copyright (C) 2005 Jens Axboe <axboe@suse.de>
	5	* Copyright (C) 2006-2012 Jens Axboe <axboe@kernel.dk>
	6	*
	7	* The license below covers all files distributed with fio unless otherwise
	8	* noted in the file itself.
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License version 2 as
	12	* published by the Free Software Foundation.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	22	*
	23	*/
	24
	25	#include <string.h>
59dfce57 JA	26	#include <sys/types.h>
59dfce57 JA	27	#include <signal.h>
a569b45f JA	28	#include <stdint.h>
a569b45f JA	29	#include <locale.h>
4a851614	30	#include <fcntl.h>
a569b45f	31
2e1df07d	32	#include "fio.h"
a569b45f JA	33	#include "smalloc.h"
a569b45f JA	34	#include "os/os.h"
243bfe19	35	#include "filelock.h"
a39fb9ea	36	#include "helper_thread.h"
d619275c	37	#include "filehash.h"
2e1df07d	38
a3efc919 JA	39	/*
	40	* Just expose an empty list, if the OS does not support disk util stats
	41	*/
	42	#ifndef FIO_HAVE_DISK_UTIL
	43	FLIST_HEAD(disk_list);
	44	#endif
	45
	46	unsigned long arch_flags = 0;
	47
a569b45f JA	48	uintptr_t page_mask = 0;
	49	uintptr_t page_size = 0;
	50
c6da2c34	51	/* see os/os.h */
2e1df07d JA	52	static const char *fio_os_strings[os_nr] = {
	53	"Invalid",
	54	"Linux",
	55	"AIX",
	56	"FreeBSD",
	57	"HP-UX",
	58	"OSX",
	59	"NetBSD",
1c7eaa7b	60	"OpenBSD",
2e1df07d	61	"Solaris",
1c7eaa7b JA	62	"Windows",
1c7eaa7b JA	63	"Android",
239b2882	64	"DragonFly",
2e1df07d JA	65	};
2e1df07d JA	66
c6da2c34	67	/* see arch/arch.h */
2e1df07d JA	68	static const char *fio_arch_strings[arch_nr] = {
	69	"Invalid",
	70	"x86-64",
	71	"x86",
	72	"ppc",
	73	"ia64",
	74	"s390",
	75	"alpha",
	76	"sparc",
	77	"sparc64",
	78	"arm",
	79	"sh",
	80	"hppa",
c6da2c34 TK	81	"mips",
c6da2c34 TK	82	"aarch64",
2e1df07d JA	83	"generic"
	84	};
	85
ac28d905	86	static void reset_io_counters(struct thread_data *td, int all)
2e1df07d	87	{
6eaf09d6	88	int ddir;
bcd5abfa	89
ac28d905 JA	90	if (all) {
	91	for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
	92	td->stat_io_bytes[ddir] = 0;
	93	td->this_io_bytes[ddir] = 0;
	94	td->stat_io_blocks[ddir] = 0;
	95	td->this_io_blocks[ddir] = 0;
	96	td->rate_bytes[ddir] = 0;
	97	td->rate_blocks[ddir] = 0;
	98	td->bytes_done[ddir] = 0;
	99	td->rate_io_issue_bytes[ddir] = 0;
	100	td->rate_next_io_time[ddir] = 0;
	101	}
6eaf09d6	102	}
ac28d905	103
2e1df07d	104	td->zone_bytes = 0;
2e1df07d JA	105
2e1df07d JA	106	td->last_was_sync = 0;
bcd5abfa	107	td->rwmix_issues = 0;
2e1df07d JA	108
	109	/*
	110	* reset file done count if we are to start over
	111	*/
44cbc6da	112	if (td->o.time_based \|\| td->o.loops \|\| td->o.do_verify)
2e1df07d JA	113	td->nr_done_files = 0;
	114	}
	115
ac28d905	116	void clear_io_state(struct thread_data *td, int all)
2e1df07d JA	117	{
	118	struct fio_file *f;
	119	unsigned int i;
	120
ac28d905	121	reset_io_counters(td, all);
2e1df07d JA	122
2e1df07d JA	123	close_files(td);
ec803e97	124	for_each_file(td, f, i) {
2e1df07d	125	fio_file_clear_done(f);
ec803e97 BF	126	f->file_offset = get_start_offset(td, f);
ec803e97 BF	127	}
2e1df07d JA	128
2e1df07d JA	129	/*
1520f26e	130	* Re-Seed random number generator if rand_repeatable is true
2e1df07d	131	*/
1520f26e D	132	if (td->o.rand_repeatable)
1520f26e D	133	td_fill_rand_seeds(td);
2e1df07d JA	134	}
	135
	136	void reset_all_stats(struct thread_data *td)
	137	{
2e1df07d JA	138	int i;
2e1df07d JA	139
ac28d905	140	reset_io_counters(td, 1);
2e1df07d	141
6eaf09d6	142	for (i = 0; i < DDIR_RWDIR_CNT; i++) {
2e1df07d JA	143	td->io_bytes[i] = 0;
	144	td->io_blocks[i] = 0;
	145	td->io_issues[i] = 0;
	146	td->ts.total_io_u[i] = 0;
6eaf09d6	147	td->ts.runtime[i] = 0;
5b3faae6	148	td->rwmix_issues = 0;
2e1df07d JA	149	}
2e1df07d JA	150
3aea75b1 KC	151	set_epoch_time(td, td->o.log_unix_epoch);
	152	memcpy(&td->start, &td->epoch, sizeof(struct timeval));
	153	memcpy(&td->iops_sample_time, &td->epoch, sizeof(struct timeval));
	154	memcpy(&td->bw_sample_time, &td->epoch, sizeof(struct timeval));
3e260a46	155
6bb58215	156	lat_target_reset(td);
210dd0fc	157	clear_rusage_stat(td);
a47591e4	158	helper_reset();
2e1df07d JA	159	}
	160
	161	void reset_fio_state(void)
	162	{
	163	groupid = 0;
	164	thread_number = 0;
2caefeec	165	stat_number = 0;
2e1df07d JA	166	done_secs = 0;
	167	}
	168
	169	const char *fio_get_os_string(int nr)
	170	{
	171	if (nr < os_nr)
	172	return fio_os_strings[nr];
	173
	174	return NULL;
	175	}
	176
	177	const char *fio_get_arch_string(int nr)
	178	{
	179	if (nr < arch_nr)
	180	return fio_arch_strings[nr];
	181
	182	return NULL;
	183	}
	184
6e760cf3 JA	185	static const char *td_runstates[] = {
	186	"NOT_CREATED",
	187	"CREATED",
	188	"INITIALIZED",
	189	"RAMP",
	190	"SETTING_UP",
	191	"RUNNING",
	192	"PRE_READING",
	193	"VERIFYING",
	194	"FSYNCING",
	195	"FINISHING",
	196	"EXITED",
	197	"REAPED",
	198	};
	199
9cc8cb91	200	const char *runstate_to_name(int runstate)
6e760cf3 JA	201	{
	202	compiletime_assert(TD_LAST == 12, "td runstate list");
	203	if (runstate >= 0 && runstate < TD_LAST)
	204	return td_runstates[runstate];
	205
	206	return "invalid";
	207	}
	208
2e1df07d JA	209	void td_set_runstate(struct thread_data *td, int runstate)
	210	{
	211	if (td->runstate == runstate)
	212	return;
	213
6e760cf3 JA	214	dprint(FD_PROCESS, "pid=%d: runstate %s -> %s\n", (int) td->pid,
	215	runstate_to_name(td->runstate),
	216	runstate_to_name(runstate));
2e1df07d JA	217	td->runstate = runstate;
	218	}
	219
8edd973d JA	220	int td_bump_runstate(struct thread_data *td, int new_state)
	221	{
	222	int old_state = td->runstate;
	223
	224	td_set_runstate(td, new_state);
	225	return old_state;
	226	}
	227
	228	void td_restore_runstate(struct thread_data *td, int old_state)
	229	{
	230	td_set_runstate(td, old_state);
	231	}
	232
ebea2133 JA	233	void fio_mark_td_terminate(struct thread_data *td)
	234	{
	235	fio_gettime(&td->terminate_time, NULL);
	236	write_barrier();
	237	td->terminate = 1;
	238	}
	239
d883efbd	240	void fio_terminate_threads(unsigned int group_id)
2e1df07d JA	241	{
2e1df07d JA	242	struct thread_data *td;
41fa20ec	243	pid_t pid = getpid();
2e1df07d JA	244	int i;
	245
	246	dprint(FD_PROCESS, "terminate group_id=%d\n", group_id);
	247
	248	for_each_td(td, i) {
d883efbd	249	if (group_id == TERMINATE_ALL \|\| group_id == td->groupid) {
2e1df07d JA	250	dprint(FD_PROCESS, "setting terminate on %s/%d\n",
2e1df07d JA	251	td->o.name, (int) td->pid);
cba5460c JA	252
	253	if (td->terminate)
	254	continue;
	255
ebea2133	256	fio_mark_td_terminate(td);
2e1df07d JA	257	td->o.start_delay = 0;
	258
	259	/*
	260	* if the thread is running, just let it exit
	261	*/
36d80bc7	262	if (!td->pid \|\| pid == td->pid)
2e1df07d JA	263	continue;
	264	else if (td->runstate < TD_RAMP)
	265	kill(td->pid, SIGTERM);
36d80bc7	266	else {
2e1df07d JA	267	struct ioengine_ops *ops = td->io_ops;
2e1df07d JA	268
36d80bc7 JA	269	if (ops && ops->terminate)
36d80bc7 JA	270	ops->terminate(td);
2e1df07d JA	271	}
	272	}
	273	}
	274	}
	275
046395d7 JA	276	int fio_running_or_pending_io_threads(void)
	277	{
	278	struct thread_data *td;
	279	int i;
a691d82f	280	int nr_io_threads = 0;
046395d7 JA	281
	282	for_each_td(td, i) {
	283	if (td->flags & TD_F_NOIO)
	284	continue;
a691d82f	285	nr_io_threads++;
046395d7 JA	286	if (td->runstate < TD_EXITED)
	287	return 1;
	288	}
	289
a691d82f TK	290	if (!nr_io_threads)
a691d82f TK	291	return -1; /* we only had cpuio threads to begin with */
046395d7 JA	292	return 0;
	293	}
	294
3a35845f	295	int fio_set_fd_nonblocking(int fd, const char *who)
4a851614 JA	296	{
	297	int flags;
	298
	299	flags = fcntl(fd, F_GETFL);
	300	if (flags < 0)
	301	log_err("fio: %s failed to get file flags: %s\n", who, strerror(errno));
	302	else {
3a35845f JA	303	int new_flags = flags \| O_NONBLOCK;
	304
	305	new_flags = fcntl(fd, F_SETFL, new_flags);
	306	if (new_flags < 0)
4a851614 JA	307	log_err("fio: %s failed to get file flags: %s\n", who, strerror(errno));
4a851614 JA	308	}
3a35845f JA	309
3a35845f JA	310	return flags;
4a851614 JA	311	}
4a851614 JA	312
a569b45f JA	313	static int endian_check(void)
	314	{
	315	union {
	316	uint8_t c[8];
	317	uint64_t v;
	318	} u;
	319	int le = 0, be = 0;
	320
	321	u.v = 0x12;
	322	if (u.c[7] == 0x12)
	323	be = 1;
	324	else if (u.c[0] == 0x12)
	325	le = 1;
	326
	327	#if defined(CONFIG_LITTLE_ENDIAN)
	328	if (be)
	329	return 1;
	330	#elif defined(CONFIG_BIG_ENDIAN)
	331	if (le)
	332	return 1;
	333	#else
	334	return 1;
	335	#endif
	336
	337	if (!le && !be)
	338	return 1;
	339
	340	return 0;
	341	}
	342
	343	int initialize_fio(char *envp[])
	344	{
	345	long ps;
	346
976a7756 JA	347	/*
	348	* We need these to be properly 64-bit aligned, otherwise we
	349	* can run into problems on archs that fault on unaligned fp
	350	* access (ARM).
	351	*/
24ffb6f8	352	compiletime_assert((offsetof(struct thread_stat, percentile_list) % 8) == 0, "stat percentile_list");
3d0ebb30 GG	353	compiletime_assert((offsetof(struct thread_stat, total_run_time) % 8) == 0, "total_run_time");
3d0ebb30 GG	354	compiletime_assert((offsetof(struct thread_stat, total_err_count) % 8) == 0, "total_err_count");
24ffb6f8 JA	355	compiletime_assert((offsetof(struct thread_stat, latency_percentile) % 8) == 0, "stat latency_percentile");
	356	compiletime_assert((offsetof(struct thread_options_pack, zipf_theta) % 8) == 0, "zipf_theta");
	357	compiletime_assert((offsetof(struct thread_options_pack, pareto_h) % 8) == 0, "pareto_h");
	358	compiletime_assert((offsetof(struct thread_options_pack, percentile_list) % 8) == 0, "percentile_list");
b8c6b4de	359	compiletime_assert((offsetof(struct thread_options_pack, latency_percentile) % 8) == 0, "latency_percentile");
976a7756	360
a569b45f JA	361	if (endian_check()) {
	362	log_err("fio: endianness settings appear wrong.\n");
	363	log_err("fio: please report this to fio@vger.kernel.org\n");
	364	return 1;
	365	}
	366
	367	#if !defined(CONFIG_GETTIMEOFDAY) && !defined(CONFIG_CLOCK_GETTIME)
	368	#error "No available clock source!"
	369	#endif
	370
	371	arch_init(envp);
	372
	373	sinit();
	374
243bfe19 JA	375	if (fio_filelock_init()) {
	376	log_err("fio: failed initializing filelock subsys\n");
	377	return 1;
	378	}
	379
d619275c JA	380	file_hash_init();
d619275c JA	381
a569b45f JA	382	/*
	383	* We need locale for number printing, if it isn't set then just
	384	* go with the US format.
	385	*/
	386	if (!getenv("LC_NUMERIC"))
	387	setlocale(LC_NUMERIC, "en_US");
	388
	389	ps = sysconf(_SC_PAGESIZE);
	390	if (ps < 0) {
	391	log_err("Failed to get page size\n");
	392	return 1;
	393	}
	394
	395	page_size = ps;
	396	page_mask = ps - 1;
2e1df07d	397
a569b45f JA	398	fio_keywords_init();
	399	return 0;
	400	}
af1dc266 JA	401
	402	void deinitialize_fio(void)
	403	{
	404	fio_keywords_exit();
	405	}