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_INLINE_HPP 26 #define SHARE_VM_GC_SHARED_GCTRACETIME_INLINE_HPP 27 28 #include "gc/shared/collectedHeap.hpp" 29 #include "gc/shared/gcTimer.hpp" 30 #include "gc/shared/gcTrace.hpp" 31 #include "gc/shared/gcTraceTime.hpp" 32 #include "logging/log.hpp" 33 #include "logging/logStream.inline.hpp" 34 #include "memory/universe.hpp" 35 #include "prims/jni_md.h" 36 #include "utilities/ticks.hpp" 37 38 #define LOG_STOP_HEAP_FORMAT SIZE_FORMAT "M->" SIZE_FORMAT "M(" SIZE_FORMAT "M)" 39 40 inline void GCTraceTimeImpl::log_start(jlong start_counter) { 41 if (_out_start.is_enabled()) { 42 LogStream out(_out_start); 43 44 out.print("%s", _title); 45 if (_gc_cause != GCCause::_no_gc) { 46 out.print(" (%s)", GCCause::to_string(_gc_cause)); 47 } 48 out.cr(); 49 } 50 } 51 52 inline void GCTraceTimeImpl::log_stop(jlong start_counter, jlong stop_counter) { 53 double duration_in_ms = TimeHelper::counter_to_millis(stop_counter - start_counter); 54 double start_time_in_secs = TimeHelper::counter_to_seconds(start_counter); 55 double stop_time_in_secs = TimeHelper::counter_to_seconds(stop_counter); 56 57 LogStream out(_out_stop); 58 59 out.print("%s", _title); 60 61 if (_gc_cause != GCCause::_no_gc) { 62 out.print(" (%s)", GCCause::to_string(_gc_cause)); 63 } 64 65 if (_heap_usage_before != SIZE_MAX) { 66 CollectedHeap* heap = GC::gc()->heap(); 67 size_t used_before_m = _heap_usage_before / M; 68 size_t used_m = heap->used() / M; 69 size_t capacity_m = heap->capacity() / M; 70 out.print(" " LOG_STOP_HEAP_FORMAT, used_before_m, used_m, capacity_m); 71 } 72 73 out.print_cr(" %.3fms", duration_in_ms); 74 } 75 76 inline void GCTraceTimeImpl::time_stamp(Ticks& ticks) { 77 if (_enabled || _timer != NULL) { 78 ticks.stamp(); 79 } 80 } 81 82 inline GCTraceTimeImpl::GCTraceTimeImpl(LogTargetHandle out_start, LogTargetHandle out_stop, const char* title, GCTimer* timer, GCCause::Cause gc_cause, bool log_heap_usage) : 83 _enabled(out_stop.is_enabled()), 84 _out_start(out_start), 85 _out_stop(out_stop), 86 _start_ticks(), 87 _heap_usage_before(SIZE_MAX), 88 _title(title), 89 _gc_cause(gc_cause), 90 _timer(timer) { 91 92 time_stamp(_start_ticks); 93 if (_enabled) { 94 if (log_heap_usage) { 95 _heap_usage_before = GC::gc()->heap()->used(); 96 } 97 log_start(_start_ticks.value()); 98 } 99 if (_timer != NULL) { 100 _timer->register_gc_phase_start(_title, _start_ticks); 101 } 102 } 103 104 inline GCTraceTimeImpl::~GCTraceTimeImpl() { 105 Ticks stop_ticks; 106 time_stamp(stop_ticks); 107 if (_enabled) { 108 log_stop(_start_ticks.value(), stop_ticks.value()); 109 } 110 if (_timer != NULL) { 111 _timer->register_gc_phase_end(stop_ticks); 112 } 113 } 114 115 template <LogLevelType Level, LogTagType T0, LogTagType T1, LogTagType T2, LogTagType T3, LogTagType T4, LogTagType GuardTag > 116 GCTraceConcTimeImpl<Level, T0, T1, T2, T3, T4, GuardTag>::GCTraceConcTimeImpl(const char* title) : 117 _enabled(LogImpl<T0, T1, T2, T3, T4, GuardTag>::is_level(Level)), _start_time(os::elapsed_counter()), _title(title) { 118 if (_enabled) { 119 LogImpl<T0, T1, T2, T3, T4>::template write<Level>("%s", _title); 120 } 121 } 122 123 template <LogLevelType Level, LogTagType T0, LogTagType T1, LogTagType T2, LogTagType T3, LogTagType T4, LogTagType GuardTag > 124 GCTraceConcTimeImpl<Level, T0, T1, T2, T3, T4, GuardTag>::~GCTraceConcTimeImpl() { 125 if (_enabled) { 126 jlong stop_time = os::elapsed_counter(); 127 LogImpl<T0, T1, T2, T3, T4>::template write<Level>("%s %0.3fms", _title, 128 TimeHelper::counter_to_millis(stop_time - _start_time)); 129 } 130 } 131 132 // Figure out the first __NO_TAG position and replace it with 'start'. 133 #define INJECT_START_TAG(T1, T2, T3, T4) \ 134 (( T1 == LogTag::__NO_TAG) ? PREFIX_LOG_TAG(start) : T1), \ 135 ((T1 != LogTag::__NO_TAG && T2 == LogTag::__NO_TAG) ? PREFIX_LOG_TAG(start) : T2), \ 136 ((T2 != LogTag::__NO_TAG && T3 == LogTag::__NO_TAG) ? PREFIX_LOG_TAG(start) : T3), \ 137 ((T3 != LogTag::__NO_TAG && T4 == LogTag::__NO_TAG) ? PREFIX_LOG_TAG(start) : T4) 138 139 template <LogLevelType level, LogTagType T0, LogTagType T1, LogTagType T2, LogTagType T3, LogTagType T4, LogTagType GuardTag> 140 GCTraceTimeImplWrapper<level, T0, T1, T2, T3, T4, GuardTag>::GCTraceTimeImplWrapper( 141 const char* title, GCTimer* timer, GCCause::Cause gc_cause, bool log_heap_usage) 142 : _impl( 143 LogTargetHandle::create<level, T0, INJECT_START_TAG(T1, T2, T3, T4), GuardTag>(), 144 LogTargetHandle::create<level, T0, T1, T2, T3, T4, GuardTag>(), 145 title, 146 timer, 147 gc_cause, 148 log_heap_usage) { 149 150 STATIC_ASSERT(T0 != LogTag::__NO_TAG); // Need some tag to log on. 151 STATIC_ASSERT(T4 == LogTag::__NO_TAG); // Need to leave at least the last tag for the "start" tag in log_start() 152 } 153 154 #undef INJECT_START_TAG 155 156 template <LogLevelType Level, LogTagType T0, LogTagType T1, LogTagType T2, LogTagType T3, LogTagType T4, LogTagType GuardTag> 157 GCTraceTimeImplWrapper<Level, T0, T1, T2, T3, T4, GuardTag>::~GCTraceTimeImplWrapper() {} 158 159 #define GCTraceTime(Level, ...) GCTraceTimeImplWrapper<LogLevel::Level, LOG_TAGS(__VA_ARGS__)> 160 #define GCTraceConcTime(Level, ...) GCTraceConcTimeImpl<LogLevel::Level, LOG_TAGS(__VA_ARGS__)> 161 162 #endif // SHARE_VM_GC_SHARED_GCTRACETIME_INLINE_HPP