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10405
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1 /*
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2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP
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26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP
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27
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28 #include "gc_interface/gcCause.hpp"
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29 #include "gc_interface/gcName.hpp"
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30 #include "gc_implementation/shared/gcWhen.hpp"
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31 #include "gc_implementation/shared/copyFailedInfo.hpp"
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32 #include "memory/allocation.hpp"
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33 #include "memory/referenceType.hpp"
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34 #if INCLUDE_ALL_GCS
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35 #include "gc_implementation/g1/g1YCTypes.hpp"
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36 #endif
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37 #include "utilities/macros.hpp"
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38
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39 typedef uint GCId;
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40
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41 class EvacuationInfo;
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42 class GCHeapSummary;
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43 class MetaspaceSummary;
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44 class PSHeapSummary;
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45 class ReferenceProcessorStats;
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46 class TimePartitions;
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47 class BoolObjectClosure;
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48
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49 class SharedGCInfo VALUE_OBJ_CLASS_SPEC {
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50 static const jlong UNSET_TIMESTAMP = -1;
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51
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52 public:
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53 static const GCId UNSET_GCID = (GCId)-1;
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54
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55 private:
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56 GCId _id;
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57 GCName _name;
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58 GCCause::Cause _cause;
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59 jlong _start_timestamp;
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60 jlong _end_timestamp;
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61 jlong _sum_of_pauses;
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62 jlong _longest_pause;
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63
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64 public:
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65 SharedGCInfo(GCName name) : _id(UNSET_GCID), _name(name), _cause(GCCause::_last_gc_cause),
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66 _start_timestamp(UNSET_TIMESTAMP), _end_timestamp(UNSET_TIMESTAMP), _sum_of_pauses(0), _longest_pause(0) {}
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67
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68 void set_id(GCId id) { _id = id; }
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69 GCId id() const { return _id; }
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70
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71 void set_start_timestamp(jlong timestamp) { _start_timestamp = timestamp; }
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72 jlong start_timestamp() const { return _start_timestamp; }
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73
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74 void set_end_timestamp(jlong timestamp) { _end_timestamp = timestamp; }
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75 jlong end_timestamp() const { return _end_timestamp; }
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76
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77 void set_name(GCName name) { _name = name; }
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78 GCName name() const { return _name; }
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79
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80 void set_cause(GCCause::Cause cause) { _cause = cause; }
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81 GCCause::Cause cause() const { return _cause; }
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82
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83 void set_sum_of_pauses(jlong duration) { _sum_of_pauses = duration; }
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84 jlong sum_of_pauses() const { return _sum_of_pauses; }
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85
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86 void set_longest_pause(jlong duration) { _longest_pause = duration; }
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87 jlong longest_pause() const { return _longest_pause; }
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88 };
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89
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90 class ParallelOldGCInfo VALUE_OBJ_CLASS_SPEC {
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91 void* _dense_prefix;
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92 public:
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93 ParallelOldGCInfo() : _dense_prefix(NULL) {}
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94 void report_dense_prefix(void* addr) {
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95 _dense_prefix = addr;
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96 }
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97 void* dense_prefix() const { return _dense_prefix; }
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98 };
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99
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100 #if INCLUDE_ALL_GCS
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101
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102 class G1YoungGCInfo VALUE_OBJ_CLASS_SPEC {
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103 G1YCType _type;
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104 public:
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105 G1YoungGCInfo() : _type(G1YCTypeEndSentinel) {}
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106 void set_type(G1YCType type) {
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107 _type = type;
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108 }
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109 G1YCType type() const { return _type; }
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110 };
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111
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112 #endif // INCLUDE_ALL_GCS
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113
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114 class GCTracer : public ResourceObj {
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115 protected:
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116 SharedGCInfo _shared_gc_info;
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117
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118 public:
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119 void report_gc_start(GCCause::Cause cause, jlong timestamp);
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120 void report_gc_end(jlong timestamp, TimePartitions* time_partitions);
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121 void report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary, const MetaspaceSummary& meta_space_summary) const;
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122 void report_gc_reference_stats(const ReferenceProcessorStats& rp) const;
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123 void report_object_count_after_gc(BoolObjectClosure* object_filter) NOT_SERVICES_RETURN;
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124 bool has_reported_gc_start() const;
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125
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126 protected:
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127 GCTracer(GCName name) : _shared_gc_info(name) {}
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128 virtual void report_gc_start_impl(GCCause::Cause cause, jlong timestamp);
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129 virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
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130
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131 private:
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132 void send_garbage_collection_event() const;
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133 void send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const;
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134 void send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const;
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135 void send_reference_stats_event(ReferenceType type, size_t count) const;
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136 void send_phase_events(TimePartitions* time_partitions) const;
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137 };
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138
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139 class YoungGCTracer : public GCTracer {
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140 static const uint UNSET_TENURING_THRESHOLD = (uint) -1;
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141
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142 uint _tenuring_threshold;
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143
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144 protected:
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145 YoungGCTracer(GCName name) : GCTracer(name), _tenuring_threshold(UNSET_TENURING_THRESHOLD) {}
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146 virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
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147
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148 public:
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149 void report_promotion_failed(const PromotionFailedInfo& pf_info);
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150 void report_tenuring_threshold(const uint tenuring_threshold);
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151
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152 private:
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153 void send_young_gc_event() const;
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154 void send_promotion_failed_event(const PromotionFailedInfo& pf_info) const;
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155 };
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156
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157 class OldGCTracer : public GCTracer {
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158 protected:
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159 OldGCTracer(GCName name) : GCTracer(name) {}
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160 virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
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161
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162 public:
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163 void report_concurrent_mode_failure();
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164
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165 private:
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166 void send_old_gc_event() const;
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167 void send_concurrent_mode_failure_event();
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168 };
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169
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170 class ParallelOldTracer : public OldGCTracer {
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171 ParallelOldGCInfo _parallel_old_gc_info;
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172
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173 public:
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174 ParallelOldTracer() : OldGCTracer(ParallelOld) {}
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175 void report_dense_prefix(void* dense_prefix);
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176
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177 protected:
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178 void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
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179
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180 private:
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181 void send_parallel_old_event() const;
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182 };
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183
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184 class SerialOldTracer : public OldGCTracer {
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185 public:
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186 SerialOldTracer() : OldGCTracer(SerialOld) {}
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187 };
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188
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189 class ParallelScavengeTracer : public YoungGCTracer {
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190 public:
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191 ParallelScavengeTracer() : YoungGCTracer(ParallelScavenge) {}
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192 };
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193
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194 class DefNewTracer : public YoungGCTracer {
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195 public:
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196 DefNewTracer() : YoungGCTracer(DefNew) {}
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197 };
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198
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199 class ParNewTracer : public YoungGCTracer {
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200 public:
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201 ParNewTracer() : YoungGCTracer(ParNew) {}
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202 };
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203
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204 #if INCLUDE_ALL_GCS
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205 class G1NewTracer : public YoungGCTracer {
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206 G1YoungGCInfo _g1_young_gc_info;
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207
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208 public:
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209 G1NewTracer() : YoungGCTracer(G1New) {}
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210
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211 void report_yc_type(G1YCType type);
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212 void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
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213 void report_evacuation_info(EvacuationInfo* info);
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214 void report_evacuation_failed(EvacuationFailedInfo& ef_info);
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215
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216 private:
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217 void send_g1_young_gc_event();
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218 void send_evacuation_info_event(EvacuationInfo* info);
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219 void send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const;
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220 };
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221 #endif
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222
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223 class CMSTracer : public OldGCTracer {
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224 public:
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225 CMSTracer() : OldGCTracer(ConcurrentMarkSweep) {}
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226 };
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227
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228 class G1OldTracer : public OldGCTracer {
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229 public:
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230 G1OldTracer() : OldGCTracer(G1Old) {}
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231 };
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232
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233 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP
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