1 /* 2 * Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "gc/shared/gcTraceTime.hpp" 27 #include "logging/log.hpp" 28 #include "runtime/os.hpp" 29 30 GCTraceCPUTime::GCTraceCPUTime() : 31 _active(Log<LOG_TAGS(gc, cpu)>::is_info()), 32 _starting_user_time(0.0), 33 _starting_system_time(0.0), 34 _starting_real_time(0.0) 35 { 36 if (_active) { 37 bool valid = os::getTimesSecs(&_starting_real_time, 38 &_starting_user_time, 39 &_starting_system_time); 40 if (!valid) { 41 log_warning(gc, cpu)("TraceCPUTime: os::getTimesSecs() returned invalid result"); 42 _active = false; 43 } 44 } 45 } 46 47 GCTraceCPUTime::~GCTraceCPUTime() { 48 if (_active) { 49 double real_time, user_time, system_time; 50 bool valid = os::getTimesSecs(&real_time, &user_time, &system_time); 51 if (valid) { 52 log_info(gc, cpu)("User=%3.2fs Sys=%3.2fs Real=%3.2fs", 53 user_time - _starting_user_time, 54 system_time - _starting_system_time, 55 real_time - _starting_real_time); 56 } else { 57 log_warning(gc, cpu)("TraceCPUTime: os::getTimesSecs() returned invalid result"); 58 } 59 } 60 }