61 lines
2.2 KiB
C++
61 lines
2.2 KiB
C++
/*
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* Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "gc/shared/gcTraceTime.inline.hpp"
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#include "logging/log.hpp"
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#include "runtime/os.hpp"
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GCTraceCPUTime::GCTraceCPUTime() :
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_active(log_is_enabled(Info, gc, cpu)),
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_starting_user_time(0.0),
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_starting_system_time(0.0),
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_starting_real_time(0.0)
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{
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if (_active) {
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bool valid = os::getTimesSecs(&_starting_real_time,
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&_starting_user_time,
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&_starting_system_time);
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if (!valid) {
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log_warning(gc, cpu)("TraceCPUTime: os::getTimesSecs() returned invalid result");
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_active = false;
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}
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}
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}
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GCTraceCPUTime::~GCTraceCPUTime() {
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if (_active) {
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double real_time, user_time, system_time;
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bool valid = os::getTimesSecs(&real_time, &user_time, &system_time);
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if (valid) {
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log_info(gc, cpu)("User=%3.2fs Sys=%3.2fs Real=%3.2fs",
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user_time - _starting_user_time,
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system_time - _starting_system_time,
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real_time - _starting_real_time);
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} else {
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log_warning(gc, cpu)("TraceCPUTime: os::getTimesSecs() returned invalid result");
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}
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}
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}
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