1 /* 2 * Copyright (c) 2012, 2013, 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_IMPLEMENTATION_SHARED_GCTRACE_HPP 26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP 27 28 #include "gc_interface/gcCause.hpp" 29 #include "gc_interface/gcName.hpp" 30 #include "gc_implementation/shared/gcWhen.hpp" 31 #include "gc_implementation/shared/copyFailedInfo.hpp" 32 #include "memory/allocation.hpp" 33 #include "memory/referenceType.hpp" 34 #if INCLUDE_ALL_GCS 35 #include "gc_implementation/g1/g1YCTypes.hpp" 36 #endif 37 #include "utilities/macros.hpp" 38 #include "utilities/ticks.hpp" 39 40 typedef uint GCId; 41 42 class EvacuationInfo; 43 class GCHeapSummary; 44 class MetaspaceSummary; 45 class PSHeapSummary; 46 class ReferenceProcessorStats; 47 class TimePartitions; 48 class BoolObjectClosure; 49 50 class SharedGCInfo VALUE_OBJ_CLASS_SPEC { 51 public: 52 static const GCId UNSET_GCID = (GCId)-1; 53 54 private: 55 GCId _id; 56 GCName _name; 57 GCCause::Cause _cause; 58 Ticks _start_timestamp; 59 Ticks _end_timestamp; 60 Tickspan _sum_of_pauses; 61 Tickspan _longest_pause; 62 63 public: 64 SharedGCInfo(GCName name) : 65 _id(UNSET_GCID), 66 _name(name), 67 _cause(GCCause::_last_gc_cause), 68 _start_timestamp(), 69 _end_timestamp(), 70 _sum_of_pauses(), 71 _longest_pause() { 72 } 73 74 void set_id(GCId id) { _id = id; } 75 GCId id() const { return _id; } 76 77 void set_start_timestamp(const Ticks& timestamp) { _start_timestamp = timestamp; } 78 const Ticks start_timestamp() const { return _start_timestamp; } 79 80 void set_end_timestamp(const Ticks& timestamp) { _end_timestamp = timestamp; } 81 const Ticks end_timestamp() const { return _end_timestamp; } 82 83 void set_name(GCName name) { _name = name; } 84 GCName name() const { return _name; } 85 86 void set_cause(GCCause::Cause cause) { _cause = cause; } 87 GCCause::Cause cause() const { return _cause; } 88 89 void set_sum_of_pauses(const Tickspan& duration) { _sum_of_pauses = duration; } 90 const Tickspan sum_of_pauses() const { return _sum_of_pauses; } 91 92 void set_longest_pause(const Tickspan& duration) { _longest_pause = duration; } 93 const Tickspan longest_pause() const { return _longest_pause; } 94 }; 95 96 class ParallelOldGCInfo VALUE_OBJ_CLASS_SPEC { 97 void* _dense_prefix; 98 public: 99 ParallelOldGCInfo() : _dense_prefix(NULL) {} 100 void report_dense_prefix(void* addr) { 101 _dense_prefix = addr; 102 } 103 void* dense_prefix() const { return _dense_prefix; } 104 }; 105 106 #if INCLUDE_ALL_GCS 107 108 class G1YoungGCInfo VALUE_OBJ_CLASS_SPEC { 109 G1YCType _type; 110 public: 111 G1YoungGCInfo() : _type(G1YCTypeEndSentinel) {} 112 void set_type(G1YCType type) { 113 _type = type; 114 } 115 G1YCType type() const { return _type; } 116 }; 117 118 #endif // INCLUDE_ALL_GCS 119 120 class GCTracer : public ResourceObj { 121 protected: 122 SharedGCInfo _shared_gc_info; 123 124 public: 125 void report_gc_start(GCCause::Cause cause, const Ticks& timestamp); 126 void report_gc_end(const Ticks& timestamp, TimePartitions* time_partitions); 127 void report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary, const MetaspaceSummary& meta_space_summary) const; 128 void report_gc_reference_stats(const ReferenceProcessorStats& rp) const; 129 void report_object_count_after_gc(BoolObjectClosure* object_filter) NOT_SERVICES_RETURN; 130 bool has_reported_gc_start() const; 131 132 protected: 133 GCTracer(GCName name) : _shared_gc_info(name) {} 134 virtual void report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp); 135 virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions); 136 137 private: 138 void send_garbage_collection_event() const; 139 void send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const; 140 void send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const; 141 void send_reference_stats_event(ReferenceType type, size_t count) const; 142 void send_phase_events(TimePartitions* time_partitions) const; 143 }; 144 145 class YoungGCTracer : public GCTracer { 146 static const uint UNSET_TENURING_THRESHOLD = (uint) -1; 147 148 uint _tenuring_threshold; 149 150 protected: 151 YoungGCTracer(GCName name) : GCTracer(name), _tenuring_threshold(UNSET_TENURING_THRESHOLD) {} 152 virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions); 153 154 public: 155 void report_promotion_failed(const PromotionFailedInfo& pf_info); 156 void report_tenuring_threshold(const uint tenuring_threshold); 157 158 private: 159 void send_young_gc_event() const; 160 void send_promotion_failed_event(const PromotionFailedInfo& pf_info) const; 161 }; 162 163 class OldGCTracer : public GCTracer { 164 protected: 165 OldGCTracer(GCName name) : GCTracer(name) {} 166 virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions); 167 168 public: 169 void report_concurrent_mode_failure(); 170 171 private: 172 void send_old_gc_event() const; 173 void send_concurrent_mode_failure_event(); 174 }; 175 176 class ParallelOldTracer : public OldGCTracer { 177 ParallelOldGCInfo _parallel_old_gc_info; 178 179 public: 180 ParallelOldTracer() : OldGCTracer(ParallelOld) {} 181 void report_dense_prefix(void* dense_prefix); 182 183 protected: 184 void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions); 185 186 private: 187 void send_parallel_old_event() const; 188 }; 189 190 class SerialOldTracer : public OldGCTracer { 191 public: 192 SerialOldTracer() : OldGCTracer(SerialOld) {} 193 }; 194 195 class ParallelScavengeTracer : public YoungGCTracer { 196 public: 197 ParallelScavengeTracer() : YoungGCTracer(ParallelScavenge) {} 198 }; 199 200 class DefNewTracer : public YoungGCTracer { 201 public: 202 DefNewTracer() : YoungGCTracer(DefNew) {} 203 }; 204 205 class ParNewTracer : public YoungGCTracer { 206 public: 207 ParNewTracer() : YoungGCTracer(ParNew) {} 208 }; 209 210 #if INCLUDE_ALL_GCS 211 class G1NewTracer : public YoungGCTracer { 212 G1YoungGCInfo _g1_young_gc_info; 213 214 public: 215 G1NewTracer() : YoungGCTracer(G1New) {} 216 217 void report_yc_type(G1YCType type); 218 void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions); 219 void report_evacuation_info(EvacuationInfo* info); 220 void report_evacuation_failed(EvacuationFailedInfo& ef_info); 221 222 private: 223 void send_g1_young_gc_event(); 224 void send_evacuation_info_event(EvacuationInfo* info); 225 void send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const; 226 }; 227 #endif 228 229 class CMSTracer : public OldGCTracer { 230 public: 231 CMSTracer() : OldGCTracer(ConcurrentMarkSweep) {} 232 }; 233 234 class G1OldTracer : public OldGCTracer { 235 public: 236 G1OldTracer() : OldGCTracer(G1Old) {} 237 }; 238 239 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP