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/*
* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "precompiled.hpp"
#include "oops/oop.inline.hpp"
#include "runtime/timer.hpp"
#include "utilities/ostream.hpp"
#ifdef TARGET_OS_FAMILY_linux
# include "os_linux.inline.hpp"
#endif
#ifdef TARGET_OS_FAMILY_solaris
# include "os_solaris.inline.hpp"
#endif
#ifdef TARGET_OS_FAMILY_windows
# include "os_windows.inline.hpp"
#endif
#ifdef TARGET_OS_FAMILY_bsd
# include "os_bsd.inline.hpp"
#endif
void elapsedTimer::add(elapsedTimer t) {
_counter += t._counter;
}
void elapsedTimer::start() {
if (!_active) {
_active = true;
_start_counter = os::elapsed_counter();
}
}
void elapsedTimer::stop() {
if (_active) {
_counter += os::elapsed_counter() - _start_counter;
_active = false;
}
}
double elapsedTimer::seconds() const {
double count = (double) _counter;
double freq = (double) os::elapsed_frequency();
return count/freq;
}
jlong elapsedTimer::milliseconds() const {
jlong ticks_per_ms = os::elapsed_frequency() / 1000;
return _counter / ticks_per_ms;
}
jlong elapsedTimer::active_ticks() const {
if (!_active) {
return ticks();
}
jlong counter = _counter + os::elapsed_counter() - _start_counter;
return counter;
}
void TimeStamp::update_to(jlong ticks) {
_counter = ticks;
if (_counter == 0) _counter = 1;
assert(is_updated(), "must not look clear");
}
void TimeStamp::update() {
update_to(os::elapsed_counter());
}
double TimeStamp::seconds() const {
assert(is_updated(), "must not be clear");
jlong new_count = os::elapsed_counter();
double count = (double) new_count - _counter;
double freq = (double) os::elapsed_frequency();
return count/freq;
}
jlong TimeStamp::milliseconds() const {
assert(is_updated(), "must not be clear");
jlong new_count = os::elapsed_counter();
jlong count = new_count - _counter;
jlong ticks_per_ms = os::elapsed_frequency() / 1000;
return count / ticks_per_ms;
}
jlong TimeStamp::ticks_since_update() const {
assert(is_updated(), "must not be clear");
return os::elapsed_counter() - _counter;
}
TraceTime::TraceTime(const char* title,
bool doit,
bool print_cr,
outputStream* logfile) {
_active = doit;
_verbose = true;
_print_cr = print_cr;
_logfile = (logfile != NULL) ? logfile : tty;
if (_active) {
_accum = NULL;
_logfile->stamp(PrintGCTimeStamps);
_logfile->print("[%s", title);
_logfile->flush();
_t.start();
}
}
TraceTime::TraceTime(const char* title,
elapsedTimer* accumulator,
bool doit,
bool verbose,
outputStream* logfile) {
_active = doit;
_verbose = verbose;
_print_cr = true;
_logfile = (logfile != NULL) ? logfile : tty;
if (_active) {
if (_verbose) {
_logfile->stamp(PrintGCTimeStamps);
_logfile->print("[%s", title);
_logfile->flush();
}
_accum = accumulator;
_t.start();
}
}
TraceTime::~TraceTime() {
if (_active) {
_t.stop();
if (_accum!=NULL) _accum->add(_t);
if (_verbose) {
if (_print_cr) {
_logfile->print_cr(", %3.7f secs]", _t.seconds());
} else {
_logfile->print(", %3.7f secs]", _t.seconds());
}
_logfile->flush();
}
}
}
TraceCPUTime::TraceCPUTime(bool doit,
bool print_cr,
outputStream *logfile) :
_active(doit),
_print_cr(print_cr),
_starting_user_time(0.0),
_starting_system_time(0.0),
_starting_real_time(0.0),
_logfile(logfile),
_error(false) {
if (_active) {
if (logfile != NULL) {
_logfile = logfile;
} else {
_logfile = tty;
}
_error = !os::getTimesSecs(&_starting_real_time,
&_starting_user_time,
&_starting_system_time);
}
}
TraceCPUTime::~TraceCPUTime() {
if (_active) {
bool valid = false;
if (!_error) {
double real_secs; // walk clock time
double system_secs; // system time
double user_secs; // user time for all threads
double real_time, user_time, system_time;
valid = os::getTimesSecs(&real_time, &user_time, &system_time);
if (valid) {
user_secs = user_time - _starting_user_time;
system_secs = system_time - _starting_system_time;
real_secs = real_time - _starting_real_time;
_logfile->print(" [Times: user=%3.2f sys=%3.2f, real=%3.2f secs] ",
user_secs, system_secs, real_secs);
} else {
_logfile->print("[Invalid result in TraceCPUTime]");
}
} else {
_logfile->print("[Error in TraceCPUTime]");
}
if (_print_cr) {
_logfile->print_cr("");
}
_logfile->flush();
}
}
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