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src/share/vm/runtime/timer.cpp@f08d439fab8c (annotated)

src/share/vm/runtime/timer.cpp

Sun, 25 Sep 2011 16:03:29 -0700

author

never

date

Sun, 25 Sep 2011 16:03:29 -0700

changeset 3156

f08d439fab8c

parent 2314

f95d63e2154a

child 4063

9646b7ff4d14

permissions

-rw-r--r--

7089790: integrate bsd-port changes
Reviewed-by: kvn, twisti, jrose
Contributed-by: Kurt Miller <kurt@intricatesoftware.com>, Greg Lewis <glewis@eyesbeyond.com>, Jung-uk Kim <jkim@freebsd.org>, Christos Zoulas <christos@zoulas.com>, Landon Fuller <landonf@plausible.coop>, The FreeBSD Foundation <board@freebsdfoundation.org>, Michael Franz <mvfranz@gmail.com>, Roger Hoover <rhoover@apple.com>, Alexander Strange <astrange@apple.com>

duke@435	1	/*
stefank@2314	2	* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#include "precompiled.hpp"
stefank@2314	26	#include "oops/oop.inline.hpp"
stefank@2314	27	#include "runtime/timer.hpp"
stefank@2314	28	#include "utilities/ostream.hpp"
stefank@2314	29	#ifdef TARGET_OS_FAMILY_linux
stefank@2314	30	# include "os_linux.inline.hpp"
stefank@2314	31	#endif
stefank@2314	32	#ifdef TARGET_OS_FAMILY_solaris
stefank@2314	33	# include "os_solaris.inline.hpp"
stefank@2314	34	#endif
stefank@2314	35	#ifdef TARGET_OS_FAMILY_windows
stefank@2314	36	# include "os_windows.inline.hpp"
stefank@2314	37	#endif
never@3156	38	#ifdef TARGET_OS_FAMILY_bsd
never@3156	39	# include "os_bsd.inline.hpp"
never@3156	40	#endif
duke@435	41
duke@435	42
duke@435	43	void elapsedTimer::add(elapsedTimer t) {
duke@435	44	_counter += t._counter;
duke@435	45	}
duke@435	46
duke@435	47	void elapsedTimer::start() {
duke@435	48	if (!_active) {
duke@435	49	_active = true;
duke@435	50	_start_counter = os::elapsed_counter();
duke@435	51	}
duke@435	52	}
duke@435	53
duke@435	54	void elapsedTimer::stop() {
duke@435	55	if (_active) {
duke@435	56	_counter += os::elapsed_counter() - _start_counter;
duke@435	57	_active = false;
duke@435	58	}
duke@435	59	}
duke@435	60
duke@435	61	double elapsedTimer::seconds() const {
duke@435	62	double count = (double) _counter;
duke@435	63	double freq = (double) os::elapsed_frequency();
duke@435	64	return count/freq;
duke@435	65	}
duke@435	66
duke@435	67	jlong elapsedTimer::milliseconds() const {
duke@435	68	jlong ticks_per_ms = os::elapsed_frequency() / 1000;
duke@435	69	return _counter / ticks_per_ms;
duke@435	70	}
duke@435	71
duke@435	72	jlong elapsedTimer::active_ticks() const {
duke@435	73	if (!_active) {
duke@435	74	return ticks();
duke@435	75	}
duke@435	76	jlong counter = _counter + os::elapsed_counter() - _start_counter;
duke@435	77	return counter;
duke@435	78	}
duke@435	79
duke@435	80	void TimeStamp::update_to(jlong ticks) {
duke@435	81	_counter = ticks;
duke@435	82	if (_counter == 0) _counter = 1;
duke@435	83	assert(is_updated(), "must not look clear");
duke@435	84	}
duke@435	85
duke@435	86	void TimeStamp::update() {
duke@435	87	update_to(os::elapsed_counter());
duke@435	88	}
duke@435	89
duke@435	90	double TimeStamp::seconds() const {
duke@435	91	assert(is_updated(), "must not be clear");
duke@435	92	jlong new_count = os::elapsed_counter();
duke@435	93	double count = (double) new_count - _counter;
duke@435	94	double freq = (double) os::elapsed_frequency();
duke@435	95	return count/freq;
duke@435	96	}
duke@435	97
duke@435	98	jlong TimeStamp::milliseconds() const {
duke@435	99	assert(is_updated(), "must not be clear");
duke@435	100
duke@435	101	jlong new_count = os::elapsed_counter();
duke@435	102	jlong count = new_count - _counter;
duke@435	103	jlong ticks_per_ms = os::elapsed_frequency() / 1000;
duke@435	104	return count / ticks_per_ms;
duke@435	105	}
duke@435	106
duke@435	107	jlong TimeStamp::ticks_since_update() const {
duke@435	108	assert(is_updated(), "must not be clear");
duke@435	109	return os::elapsed_counter() - _counter;
duke@435	110	}
duke@435	111
duke@435	112	TraceTime::TraceTime(const char* title,
duke@435	113	bool doit,
duke@435	114	bool print_cr,
duke@435	115	outputStream* logfile) {
duke@435	116	_active = doit;
duke@435	117	_verbose = true;
duke@435	118	_print_cr = print_cr;
duke@435	119	_logfile = (logfile != NULL) ? logfile : tty;
duke@435	120
duke@435	121	if (_active) {
duke@435	122	_accum = NULL;
duke@435	123	if (PrintGCTimeStamps) {
duke@435	124	_logfile->stamp();
duke@435	125	_logfile->print(": ");
duke@435	126	}
duke@435	127	_logfile->print("[%s", title);
duke@435	128	_logfile->flush();
duke@435	129	_t.start();
duke@435	130	}
duke@435	131	}
duke@435	132
duke@435	133	TraceTime::TraceTime(const char* title,
duke@435	134	elapsedTimer* accumulator,
duke@435	135	bool doit,
duke@435	136	bool verbose,
duke@435	137	outputStream* logfile) {
duke@435	138	_active = doit;
duke@435	139	_verbose = verbose;
duke@435	140	_print_cr = true;
duke@435	141	_logfile = (logfile != NULL) ? logfile : tty;
duke@435	142	if (_active) {
duke@435	143	if (_verbose) {
duke@435	144	if (PrintGCTimeStamps) {
duke@435	145	_logfile->stamp();
duke@435	146	_logfile->print(": ");
duke@435	147	}
duke@435	148	_logfile->print("[%s", title);
duke@435	149	_logfile->flush();
duke@435	150	}
duke@435	151	_accum = accumulator;
duke@435	152	_t.start();
duke@435	153	}
duke@435	154	}
duke@435	155
duke@435	156	TraceTime::~TraceTime() {
duke@435	157	if (_active) {
duke@435	158	_t.stop();
duke@435	159	if (_accum!=NULL) _accum->add(_t);
duke@435	160	if (_verbose) {
duke@435	161	if (_print_cr) {
duke@435	162	_logfile->print_cr(", %3.7f secs]", _t.seconds());
duke@435	163	} else {
duke@435	164	_logfile->print(", %3.7f secs]", _t.seconds());
duke@435	165	}
duke@435	166	_logfile->flush();
duke@435	167	}
duke@435	168	}
duke@435	169	}
duke@435	170
duke@435	171	TraceCPUTime::TraceCPUTime(bool doit,
duke@435	172	bool print_cr,
duke@435	173	outputStream *logfile) :
duke@435	174	_active(doit),
duke@435	175	_print_cr(print_cr),
duke@435	176	_starting_user_time(0.0),
duke@435	177	_starting_system_time(0.0),
duke@435	178	_starting_real_time(0.0),
duke@435	179	_logfile(logfile),
duke@435	180	_error(false) {
duke@435	181	if (_active) {
duke@435	182	if (logfile != NULL) {
duke@435	183	_logfile = logfile;
duke@435	184	} else {
duke@435	185	_logfile = tty;
duke@435	186	}
duke@435	187
duke@435	188	_error = !os::getTimesSecs(&_starting_real_time,
duke@435	189	&_starting_user_time,
duke@435	190	&_starting_system_time);
duke@435	191	}
duke@435	192	}
duke@435	193
duke@435	194	TraceCPUTime::~TraceCPUTime() {
duke@435	195	if (_active) {
duke@435	196	bool valid = false;
duke@435	197	if (!_error) {
duke@435	198	double real_secs; // walk clock time
duke@435	199	double system_secs; // system time
duke@435	200	double user_secs; // user time for all threads
duke@435	201
duke@435	202	double real_time, user_time, system_time;
duke@435	203	valid = os::getTimesSecs(&real_time, &user_time, &system_time);
duke@435	204	if (valid) {
duke@435	205
duke@435	206	user_secs = user_time - _starting_user_time;
duke@435	207	system_secs = system_time - _starting_system_time;
duke@435	208	real_secs = real_time - _starting_real_time;
duke@435	209
duke@435	210	_logfile->print(" [Times: user=%3.2f sys=%3.2f, real=%3.2f secs] ",
duke@435	211	user_secs, system_secs, real_secs);
duke@435	212
duke@435	213	} else {
duke@435	214	_logfile->print("[Invalid result in TraceCPUTime]");
duke@435	215	}
duke@435	216	} else {
duke@435	217	_logfile->print("[Error in TraceCPUTime]");
duke@435	218	}
duke@435	219	if (_print_cr) {
duke@435	220	_logfile->print_cr("");
duke@435	221	}
duke@435	222	}
duke@435	223	}