[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"

/*
 * 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)
{
	struct timeval tv;
	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;
	}

	fio_gettime(&tv, NULL);
	memcpy(&td->epoch, &tv, sizeof(tv));
	memcpy(&td->start, &tv, sizeof(tv));
	memcpy(&td->iops_sample_time, &tv, sizeof(tv));
	memcpy(&td->bw_sample_time, &tv, sizeof(tv));
	memcpy(&td->ss.prev_time, &tv, sizeof(tv));

	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;
	}

	/*
	 * 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"
2e1df07d	37
a3efc919 JA	38	/*
	39	* Just expose an empty list, if the OS does not support disk util stats
	40	*/
	41	#ifndef FIO_HAVE_DISK_UTIL
	42	FLIST_HEAD(disk_list);
	43	#endif
	44
	45	unsigned long arch_flags = 0;
	46
a569b45f JA	47	uintptr_t page_mask = 0;
	48	uintptr_t page_size = 0;
	49
c6da2c34	50	/* see os/os.h */
2e1df07d JA	51	static const char *fio_os_strings[os_nr] = {
	52	"Invalid",
	53	"Linux",
	54	"AIX",
	55	"FreeBSD",
	56	"HP-UX",
	57	"OSX",
	58	"NetBSD",
1c7eaa7b	59	"OpenBSD",
2e1df07d	60	"Solaris",
1c7eaa7b JA	61	"Windows",
1c7eaa7b JA	62	"Android",
239b2882	63	"DragonFly",
2e1df07d JA	64	};
2e1df07d JA	65
c6da2c34	66	/* see arch/arch.h */
2e1df07d JA	67	static const char *fio_arch_strings[arch_nr] = {
	68	"Invalid",
	69	"x86-64",
	70	"x86",
	71	"ppc",
	72	"ia64",
	73	"s390",
	74	"alpha",
	75	"sparc",
	76	"sparc64",
	77	"arm",
	78	"sh",
	79	"hppa",
c6da2c34 TK	80	"mips",
c6da2c34 TK	81	"aarch64",
2e1df07d JA	82	"generic"
	83	};
	84
ac28d905	85	static void reset_io_counters(struct thread_data *td, int all)
2e1df07d	86	{
6eaf09d6	87	int ddir;
bcd5abfa	88
ac28d905 JA	89	if (all) {
	90	for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
	91	td->stat_io_bytes[ddir] = 0;
	92	td->this_io_bytes[ddir] = 0;
	93	td->stat_io_blocks[ddir] = 0;
	94	td->this_io_blocks[ddir] = 0;
	95	td->rate_bytes[ddir] = 0;
	96	td->rate_blocks[ddir] = 0;
	97	td->bytes_done[ddir] = 0;
	98	td->rate_io_issue_bytes[ddir] = 0;
	99	td->rate_next_io_time[ddir] = 0;
	100	}
6eaf09d6	101	}
ac28d905	102
2e1df07d	103	td->zone_bytes = 0;
2e1df07d JA	104
2e1df07d JA	105	td->last_was_sync = 0;
bcd5abfa	106	td->rwmix_issues = 0;
2e1df07d JA	107
	108	/*
	109	* reset file done count if we are to start over
	110	*/
44cbc6da	111	if (td->o.time_based \|\| td->o.loops \|\| td->o.do_verify)
2e1df07d JA	112	td->nr_done_files = 0;
	113	}
	114
ac28d905	115	void clear_io_state(struct thread_data *td, int all)
2e1df07d JA	116	{
	117	struct fio_file *f;
	118	unsigned int i;
	119
ac28d905	120	reset_io_counters(td, all);
2e1df07d JA	121
2e1df07d JA	122	close_files(td);
ec803e97	123	for_each_file(td, f, i) {
2e1df07d	124	fio_file_clear_done(f);
ec803e97 BF	125	f->file_offset = get_start_offset(td, f);
ec803e97 BF	126	}
2e1df07d JA	127
2e1df07d JA	128	/*
1520f26e	129	* Re-Seed random number generator if rand_repeatable is true
2e1df07d	130	*/
1520f26e D	131	if (td->o.rand_repeatable)
1520f26e D	132	td_fill_rand_seeds(td);
2e1df07d JA	133	}
	134
	135	void reset_all_stats(struct thread_data *td)
	136	{
	137	struct timeval tv;
	138	int i;
	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	}
	150
	151	fio_gettime(&tv, NULL);
2e1df07d JA	152	memcpy(&td->epoch, &tv, sizeof(tv));
2e1df07d JA	153	memcpy(&td->start, &tv, sizeof(tv));
604577f1 JA	154	memcpy(&td->iops_sample_time, &tv, sizeof(tv));
604577f1 JA	155	memcpy(&td->bw_sample_time, &tv, sizeof(tv));
16e56d25	156	memcpy(&td->ss.prev_time, &tv, sizeof(tv));
3e260a46	157
6bb58215	158	lat_target_reset(td);
210dd0fc	159	clear_rusage_stat(td);
a47591e4	160	helper_reset();
2e1df07d JA	161	}
	162
	163	void reset_fio_state(void)
	164	{
	165	groupid = 0;
	166	thread_number = 0;
2caefeec	167	stat_number = 0;
2e1df07d JA	168	done_secs = 0;
	169	}
	170
	171	const char *fio_get_os_string(int nr)
	172	{
	173	if (nr < os_nr)
	174	return fio_os_strings[nr];
	175
	176	return NULL;
	177	}
	178
	179	const char *fio_get_arch_string(int nr)
	180	{
	181	if (nr < arch_nr)
	182	return fio_arch_strings[nr];
	183
	184	return NULL;
	185	}
	186
6e760cf3 JA	187	static const char *td_runstates[] = {
	188	"NOT_CREATED",
	189	"CREATED",
	190	"INITIALIZED",
	191	"RAMP",
	192	"SETTING_UP",
	193	"RUNNING",
	194	"PRE_READING",
	195	"VERIFYING",
	196	"FSYNCING",
	197	"FINISHING",
	198	"EXITED",
	199	"REAPED",
	200	};
	201
9cc8cb91	202	const char *runstate_to_name(int runstate)
6e760cf3 JA	203	{
	204	compiletime_assert(TD_LAST == 12, "td runstate list");
	205	if (runstate >= 0 && runstate < TD_LAST)
	206	return td_runstates[runstate];
	207
	208	return "invalid";
	209	}
	210
2e1df07d JA	211	void td_set_runstate(struct thread_data *td, int runstate)
	212	{
	213	if (td->runstate == runstate)
	214	return;
	215
6e760cf3 JA	216	dprint(FD_PROCESS, "pid=%d: runstate %s -> %s\n", (int) td->pid,
	217	runstate_to_name(td->runstate),
	218	runstate_to_name(runstate));
2e1df07d JA	219	td->runstate = runstate;
	220	}
	221
8edd973d JA	222	int td_bump_runstate(struct thread_data *td, int new_state)
	223	{
	224	int old_state = td->runstate;
	225
	226	td_set_runstate(td, new_state);
	227	return old_state;
	228	}
	229
	230	void td_restore_runstate(struct thread_data *td, int old_state)
	231	{
	232	td_set_runstate(td, old_state);
	233	}
	234
ebea2133 JA	235	void fio_mark_td_terminate(struct thread_data *td)
	236	{
	237	fio_gettime(&td->terminate_time, NULL);
	238	write_barrier();
	239	td->terminate = 1;
	240	}
	241
d883efbd	242	void fio_terminate_threads(unsigned int group_id)
2e1df07d JA	243	{
2e1df07d JA	244	struct thread_data *td;
41fa20ec	245	pid_t pid = getpid();
2e1df07d JA	246	int i;
	247
	248	dprint(FD_PROCESS, "terminate group_id=%d\n", group_id);
	249
	250	for_each_td(td, i) {
d883efbd	251	if (group_id == TERMINATE_ALL \|\| group_id == td->groupid) {
2e1df07d JA	252	dprint(FD_PROCESS, "setting terminate on %s/%d\n",
2e1df07d JA	253	td->o.name, (int) td->pid);
cba5460c JA	254
	255	if (td->terminate)
	256	continue;
	257
ebea2133	258	fio_mark_td_terminate(td);
2e1df07d JA	259	td->o.start_delay = 0;
	260
	261	/*
	262	* if the thread is running, just let it exit
	263	*/
36d80bc7	264	if (!td->pid \|\| pid == td->pid)
2e1df07d JA	265	continue;
	266	else if (td->runstate < TD_RAMP)
	267	kill(td->pid, SIGTERM);
36d80bc7	268	else {
2e1df07d JA	269	struct ioengine_ops *ops = td->io_ops;
2e1df07d JA	270
36d80bc7 JA	271	if (ops && ops->terminate)
36d80bc7 JA	272	ops->terminate(td);
2e1df07d JA	273	}
	274	}
	275	}
	276	}
	277
046395d7 JA	278	int fio_running_or_pending_io_threads(void)
	279	{
	280	struct thread_data *td;
	281	int i;
a691d82f	282	int nr_io_threads = 0;
046395d7 JA	283
	284	for_each_td(td, i) {
	285	if (td->flags & TD_F_NOIO)
	286	continue;
a691d82f	287	nr_io_threads++;
046395d7 JA	288	if (td->runstate < TD_EXITED)
	289	return 1;
	290	}
	291
a691d82f TK	292	if (!nr_io_threads)
a691d82f TK	293	return -1; /* we only had cpuio threads to begin with */
046395d7 JA	294	return 0;
	295	}
	296
3a35845f	297	int fio_set_fd_nonblocking(int fd, const char *who)
4a851614 JA	298	{
	299	int flags;
	300
	301	flags = fcntl(fd, F_GETFL);
	302	if (flags < 0)
	303	log_err("fio: %s failed to get file flags: %s\n", who, strerror(errno));
	304	else {
3a35845f JA	305	int new_flags = flags \| O_NONBLOCK;
	306
	307	new_flags = fcntl(fd, F_SETFL, new_flags);
	308	if (new_flags < 0)
4a851614 JA	309	log_err("fio: %s failed to get file flags: %s\n", who, strerror(errno));
4a851614 JA	310	}
3a35845f JA	311
3a35845f JA	312	return flags;
4a851614 JA	313	}
4a851614 JA	314
a569b45f JA	315	static int endian_check(void)
	316	{
	317	union {
	318	uint8_t c[8];
	319	uint64_t v;
	320	} u;
	321	int le = 0, be = 0;
	322
	323	u.v = 0x12;
	324	if (u.c[7] == 0x12)
	325	be = 1;
	326	else if (u.c[0] == 0x12)
	327	le = 1;
	328
	329	#if defined(CONFIG_LITTLE_ENDIAN)
	330	if (be)
	331	return 1;
	332	#elif defined(CONFIG_BIG_ENDIAN)
	333	if (le)
	334	return 1;
	335	#else
	336	return 1;
	337	#endif
	338
	339	if (!le && !be)
	340	return 1;
	341
	342	return 0;
	343	}
	344
	345	int initialize_fio(char *envp[])
	346	{
	347	long ps;
	348
976a7756 JA	349	/*
	350	* We need these to be properly 64-bit aligned, otherwise we
	351	* can run into problems on archs that fault on unaligned fp
	352	* access (ARM).
	353	*/
24ffb6f8	354	compiletime_assert((offsetof(struct thread_stat, percentile_list) % 8) == 0, "stat percentile_list");
3d0ebb30 GG	355	compiletime_assert((offsetof(struct thread_stat, total_run_time) % 8) == 0, "total_run_time");
3d0ebb30 GG	356	compiletime_assert((offsetof(struct thread_stat, total_err_count) % 8) == 0, "total_err_count");
24ffb6f8 JA	357	compiletime_assert((offsetof(struct thread_stat, latency_percentile) % 8) == 0, "stat latency_percentile");
	358	compiletime_assert((offsetof(struct thread_options_pack, zipf_theta) % 8) == 0, "zipf_theta");
	359	compiletime_assert((offsetof(struct thread_options_pack, pareto_h) % 8) == 0, "pareto_h");
	360	compiletime_assert((offsetof(struct thread_options_pack, percentile_list) % 8) == 0, "percentile_list");
b8c6b4de	361	compiletime_assert((offsetof(struct thread_options_pack, latency_percentile) % 8) == 0, "latency_percentile");
976a7756	362
a569b45f JA	363	if (endian_check()) {
	364	log_err("fio: endianness settings appear wrong.\n");
	365	log_err("fio: please report this to fio@vger.kernel.org\n");
	366	return 1;
	367	}
	368
	369	#if !defined(CONFIG_GETTIMEOFDAY) && !defined(CONFIG_CLOCK_GETTIME)
	370	#error "No available clock source!"
	371	#endif
	372
	373	arch_init(envp);
	374
	375	sinit();
	376
243bfe19 JA	377	if (fio_filelock_init()) {
	378	log_err("fio: failed initializing filelock subsys\n");
	379	return 1;
	380	}
	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	}