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src/share/vm/runtime/timer.cpp@b92c45f2bc75 (annotated)

src/share/vm/runtime/timer.cpp

Wed, 02 Feb 2011 11:35:26 -0500

author

bobv

date

Wed, 02 Feb 2011 11:35:26 -0500

changeset 2508

b92c45f2bc75

parent 2314

f95d63e2154a

child 3156

f08d439fab8c

permissions

-rw-r--r--

7016023: Enable building ARM and PPC from src/closed repository
Reviewed-by: dholmes, bdelsart

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
duke@435	38
duke@435	39
duke@435	40	void elapsedTimer::add(elapsedTimer t) {
duke@435	41	_counter += t._counter;
duke@435	42	}
duke@435	43
duke@435	44	void elapsedTimer::start() {
duke@435	45	if (!_active) {
duke@435	46	_active = true;
duke@435	47	_start_counter = os::elapsed_counter();
duke@435	48	}
duke@435	49	}
duke@435	50
duke@435	51	void elapsedTimer::stop() {
duke@435	52	if (_active) {
duke@435	53	_counter += os::elapsed_counter() - _start_counter;
duke@435	54	_active = false;
duke@435	55	}
duke@435	56	}
duke@435	57
duke@435	58	double elapsedTimer::seconds() const {
duke@435	59	double count = (double) _counter;
duke@435	60	double freq = (double) os::elapsed_frequency();
duke@435	61	return count/freq;
duke@435	62	}
duke@435	63
duke@435	64	jlong elapsedTimer::milliseconds() const {
duke@435	65	jlong ticks_per_ms = os::elapsed_frequency() / 1000;
duke@435	66	return _counter / ticks_per_ms;
duke@435	67	}
duke@435	68
duke@435	69	jlong elapsedTimer::active_ticks() const {
duke@435	70	if (!_active) {
duke@435	71	return ticks();
duke@435	72	}
duke@435	73	jlong counter = _counter + os::elapsed_counter() - _start_counter;
duke@435	74	return counter;
duke@435	75	}
duke@435	76
duke@435	77	void TimeStamp::update_to(jlong ticks) {
duke@435	78	_counter = ticks;
duke@435	79	if (_counter == 0) _counter = 1;
duke@435	80	assert(is_updated(), "must not look clear");
duke@435	81	}
duke@435	82
duke@435	83	void TimeStamp::update() {
duke@435	84	update_to(os::elapsed_counter());
duke@435	85	}
duke@435	86
duke@435	87	double TimeStamp::seconds() const {
duke@435	88	assert(is_updated(), "must not be clear");
duke@435	89	jlong new_count = os::elapsed_counter();
duke@435	90	double count = (double) new_count - _counter;
duke@435	91	double freq = (double) os::elapsed_frequency();
duke@435	92	return count/freq;
duke@435	93	}
duke@435	94
duke@435	95	jlong TimeStamp::milliseconds() const {
duke@435	96	assert(is_updated(), "must not be clear");
duke@435	97
duke@435	98	jlong new_count = os::elapsed_counter();
duke@435	99	jlong count = new_count - _counter;
duke@435	100	jlong ticks_per_ms = os::elapsed_frequency() / 1000;
duke@435	101	return count / ticks_per_ms;
duke@435	102	}
duke@435	103
duke@435	104	jlong TimeStamp::ticks_since_update() const {
duke@435	105	assert(is_updated(), "must not be clear");
duke@435	106	return os::elapsed_counter() - _counter;
duke@435	107	}
duke@435	108
duke@435	109	TraceTime::TraceTime(const char* title,
duke@435	110	bool doit,
duke@435	111	bool print_cr,
duke@435	112	outputStream* logfile) {
duke@435	113	_active = doit;
duke@435	114	_verbose = true;
duke@435	115	_print_cr = print_cr;
duke@435	116	_logfile = (logfile != NULL) ? logfile : tty;
duke@435	117
duke@435	118	if (_active) {
duke@435	119	_accum = NULL;
duke@435	120	if (PrintGCTimeStamps) {
duke@435	121	_logfile->stamp();
duke@435	122	_logfile->print(": ");
duke@435	123	}
duke@435	124	_logfile->print("[%s", title);
duke@435	125	_logfile->flush();
duke@435	126	_t.start();
duke@435	127	}
duke@435	128	}
duke@435	129
duke@435	130	TraceTime::TraceTime(const char* title,
duke@435	131	elapsedTimer* accumulator,
duke@435	132	bool doit,
duke@435	133	bool verbose,
duke@435	134	outputStream* logfile) {
duke@435	135	_active = doit;
duke@435	136	_verbose = verbose;
duke@435	137	_print_cr = true;
duke@435	138	_logfile = (logfile != NULL) ? logfile : tty;
duke@435	139	if (_active) {
duke@435	140	if (_verbose) {
duke@435	141	if (PrintGCTimeStamps) {
duke@435	142	_logfile->stamp();
duke@435	143	_logfile->print(": ");
duke@435	144	}
duke@435	145	_logfile->print("[%s", title);
duke@435	146	_logfile->flush();
duke@435	147	}
duke@435	148	_accum = accumulator;
duke@435	149	_t.start();
duke@435	150	}
duke@435	151	}
duke@435	152
duke@435	153	TraceTime::~TraceTime() {
duke@435	154	if (_active) {
duke@435	155	_t.stop();
duke@435	156	if (_accum!=NULL) _accum->add(_t);
duke@435	157	if (_verbose) {
duke@435	158	if (_print_cr) {
duke@435	159	_logfile->print_cr(", %3.7f secs]", _t.seconds());
duke@435	160	} else {
duke@435	161	_logfile->print(", %3.7f secs]", _t.seconds());
duke@435	162	}
duke@435	163	_logfile->flush();
duke@435	164	}
duke@435	165	}
duke@435	166	}
duke@435	167
duke@435	168	TraceCPUTime::TraceCPUTime(bool doit,
duke@435	169	bool print_cr,
duke@435	170	outputStream *logfile) :
duke@435	171	_active(doit),
duke@435	172	_print_cr(print_cr),
duke@435	173	_starting_user_time(0.0),
duke@435	174	_starting_system_time(0.0),
duke@435	175	_starting_real_time(0.0),
duke@435	176	_logfile(logfile),
duke@435	177	_error(false) {
duke@435	178	if (_active) {
duke@435	179	if (logfile != NULL) {
duke@435	180	_logfile = logfile;
duke@435	181	} else {
duke@435	182	_logfile = tty;
duke@435	183	}
duke@435	184
duke@435	185	_error = !os::getTimesSecs(&_starting_real_time,
duke@435	186	&_starting_user_time,
duke@435	187	&_starting_system_time);
duke@435	188	}
duke@435	189	}
duke@435	190
duke@435	191	TraceCPUTime::~TraceCPUTime() {
duke@435	192	if (_active) {
duke@435	193	bool valid = false;
duke@435	194	if (!_error) {
duke@435	195	double real_secs; // walk clock time
duke@435	196	double system_secs; // system time
duke@435	197	double user_secs; // user time for all threads
duke@435	198
duke@435	199	double real_time, user_time, system_time;
duke@435	200	valid = os::getTimesSecs(&real_time, &user_time, &system_time);
duke@435	201	if (valid) {
duke@435	202
duke@435	203	user_secs = user_time - _starting_user_time;
duke@435	204	system_secs = system_time - _starting_system_time;
duke@435	205	real_secs = real_time - _starting_real_time;
duke@435	206
duke@435	207	_logfile->print(" [Times: user=%3.2f sys=%3.2f, real=%3.2f secs] ",
duke@435	208	user_secs, system_secs, real_secs);
duke@435	209
duke@435	210	} else {
duke@435	211	_logfile->print("[Invalid result in TraceCPUTime]");
duke@435	212	}
duke@435	213	} else {
duke@435	214	_logfile->print("[Error in TraceCPUTime]");
duke@435	215	}
duke@435	216	if (_print_cr) {
duke@435	217	_logfile->print_cr("");
duke@435	218	}
duke@435	219	}
duke@435	220	}