| /* |
| * Copyright (c) 1997, 2016, 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 "logging/log.hpp" |
| #include "oops/oop.inline.hpp" |
| #include "runtime/timer.hpp" |
| #include "utilities/ostream.hpp" |
| |
| double TimeHelper::counter_to_seconds(jlong counter) { |
| double freq = (double) os::elapsed_frequency(); |
| return counter / freq; |
| } |
| |
| double TimeHelper::counter_to_millis(jlong counter) { |
| return counter_to_seconds(counter) * 1000.0; |
| } |
| |
| elapsedTimer::elapsedTimer(jlong time, jlong timeUnitsPerSecond) { |
| _active = false; |
| jlong osTimeUnitsPerSecond = os::elapsed_frequency(); |
| assert(osTimeUnitsPerSecond % 1000 == 0, "must be"); |
| assert(timeUnitsPerSecond % 1000 == 0, "must be"); |
| while (osTimeUnitsPerSecond < timeUnitsPerSecond) { |
| timeUnitsPerSecond /= 1000; |
| time *= 1000; |
| } |
| while (osTimeUnitsPerSecond > timeUnitsPerSecond) { |
| timeUnitsPerSecond *= 1000; |
| time /= 1000; |
| } |
| _counter = time; |
| } |
| |
| 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 { |
| return TimeHelper::counter_to_seconds(_counter); |
| } |
| |
| jlong elapsedTimer::milliseconds() const { |
| return (jlong)TimeHelper::counter_to_millis(_counter); |
| } |
| |
| 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(); |
| return TimeHelper::counter_to_seconds(new_count - _counter); |
| } |
| |
| jlong TimeStamp::milliseconds() const { |
| assert(is_updated(), "must not be clear"); |
| jlong new_count = os::elapsed_counter(); |
| return (jlong)TimeHelper::counter_to_millis(new_count - _counter); |
| } |
| |
| jlong TimeStamp::ticks_since_update() const { |
| assert(is_updated(), "must not be clear"); |
| return os::elapsed_counter() - _counter; |
| } |
| |
| 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->cr(); |
| } |
| _logfile->flush(); |
| } |
| } |
| |