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 #ifndef SHARE_VM_GC_SHARED_GCTRACETIME_HPP 26 #define SHARE_VM_GC_SHARED_GCTRACETIME_HPP 27 28 #include "logging/log.hpp" 29 #include "logging/logHandle.hpp" 30 #include "logging/logStream.hpp" 31 #include "memory/allocation.hpp" 32 #include "utilities/ticks.hpp" 33 34 class GCTraceCPUTime : public StackObj { 35 bool _active; // true if times will be measured and printed 36 double _starting_user_time; // user time at start of measurement 37 double _starting_system_time; // system time at start of measurement 38 double _starting_real_time; // real time at start of measurement 39 public: 40 GCTraceCPUTime(); 41 ~GCTraceCPUTime(); 42 }; 43 44 class GCTimer; 45 46 class GCTraceTimeImpl : public StackObj { 47 private: 48 LogTargetHandle _out_start; 49 LogTargetHandle _out_stop; 50 bool _enabled; 51 Ticks _start_ticks; 52 const char* _title; 53 GCCause::Cause _gc_cause; 54 GCTimer* _timer; 55 size_t _heap_usage_before; 56 57 void log_start(jlong start_counter); 58 void log_stop(jlong start_counter, jlong stop_counter); 59 void time_stamp(Ticks& ticks); 60 61 public: 62 GCTraceTimeImpl(LogTargetHandle out_start, LogTargetHandle out_end, const char* title, GCTimer* timer = NULL, GCCause::Cause gc_cause = GCCause::_no_gc, bool log_heap_usage = false); 63 ~GCTraceTimeImpl(); 64 }; 65 66 template <LogLevelType Level, LogTagType T0, LogTagType T1, LogTagType T2, LogTagType T3, LogTagType T4, LogTagType GuardTag> 67 class GCTraceTimeImplWrapper : public StackObj { 68 GCTraceTimeImpl _impl; 69 public: 70 GCTraceTimeImplWrapper(const char* title, GCTimer* timer = NULL, GCCause::Cause gc_cause = GCCause::_no_gc, bool log_heap_usage = false); 71 ~GCTraceTimeImplWrapper(); 72 }; 73 74 // Similar to GCTraceTimeImpl but is intended for concurrent phase logging, 75 // which is a bit simpler and should always print the start line, i.e. not add the "start" tag. 76 template <LogLevelType Level, LogTagType T0, LogTagType T1 = LogTag::__NO_TAG, LogTagType T2 = LogTag::__NO_TAG, LogTagType T3 = LogTag::__NO_TAG, 77 LogTagType T4 = LogTag::__NO_TAG, LogTagType GuardTag = LogTag::__NO_TAG> 78 class GCTraceConcTimeImpl : public StackObj { 79 private: 80 bool _enabled; 81 jlong _start_time; 82 const char* _title; 83 public: 84 GCTraceConcTimeImpl(const char* title); 85 ~GCTraceConcTimeImpl(); 86 jlong start_time() { return _start_time; } 87 }; 88 89 #endif // SHARE_VM_GC_SHARED_GCTRACETIME_HPP