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/metaspace.hpp"
34 #include "memory/referenceType.hpp"
35 #if INCLUDE_ALL_GCS
36 #include "gc_implementation/g1/g1YCTypes.hpp"
37 #endif
38 #include "utilities/macros.hpp"
39 #include "utilities/ticks.hpp"
40
41 typedef uint GCId;
42
43 class EvacuationInfo;
44 class GCHeapSummary;
45 class MetaspaceChunkFreeListSummary;
46 class MetaspaceSummary;
47 class PSHeapSummary;
48 class ReferenceProcessorStats;
49 class TimePartitions;
50 class BoolObjectClosure;
51
52 class SharedGCInfo VALUE_OBJ_CLASS_SPEC {
53 public:
54 static const GCId UNSET_GCID = (GCId)-1;
55
56 private:
57 GCId _id;
58 GCName _name;
59 GCCause::Cause _cause;
60 Ticks _start_timestamp;
61 Ticks _end_timestamp;
62 Tickspan _sum_of_pauses;
63 Tickspan _longest_pause;
64
65 public:
66 SharedGCInfo(GCName name) :
67 _id(UNSET_GCID),
68 _name(name),
69 _cause(GCCause::_last_gc_cause),
70 _start_timestamp(),
71 _end_timestamp(),
72 _sum_of_pauses(),
73 _longest_pause() {
74 }
75
76 void set_id(GCId id) { _id = id; }
77 GCId id() const { return _id; }
78
79 void set_start_timestamp(const Ticks& timestamp) { _start_timestamp = timestamp; }
80 const Ticks start_timestamp() const { return _start_timestamp; }
81
82 void set_end_timestamp(const Ticks& timestamp) { _end_timestamp = timestamp; }
83 const Ticks end_timestamp() const { return _end_timestamp; }
84
85 void set_name(GCName name) { _name = name; }
86 GCName name() const { return _name; }
87
88 void set_cause(GCCause::Cause cause) { _cause = cause; }
89 GCCause::Cause cause() const { return _cause; }
90
91 void set_sum_of_pauses(const Tickspan& duration) { _sum_of_pauses = duration; }
92 const Tickspan sum_of_pauses() const { return _sum_of_pauses; }
93
94 void set_longest_pause(const Tickspan& duration) { _longest_pause = duration; }
95 const Tickspan longest_pause() const { return _longest_pause; }
96 };
97
98 class ParallelOldGCInfo VALUE_OBJ_CLASS_SPEC {
99 void* _dense_prefix;
100 public:
101 ParallelOldGCInfo() : _dense_prefix(NULL) {}
102 void report_dense_prefix(void* addr) {
103 _dense_prefix = addr;
104 }
105 void* dense_prefix() const { return _dense_prefix; }
106 };
107
108 #if INCLUDE_ALL_GCS
109
110 class G1YoungGCInfo VALUE_OBJ_CLASS_SPEC {
111 G1YCType _type;
112 public:
113 G1YoungGCInfo() : _type(G1YCTypeEndSentinel) {}
114 void set_type(G1YCType type) {
115 _type = type;
116 }
117 G1YCType type() const { return _type; }
118 };
119
120 #endif // INCLUDE_ALL_GCS
121
122 class GCTracer : public ResourceObj {
123 protected:
124 SharedGCInfo _shared_gc_info;
125
126 public:
127 void report_gc_start(GCCause::Cause cause, const Ticks& timestamp);
128 void report_gc_end(const Ticks& timestamp, TimePartitions* time_partitions);
129 void report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary) const;
130 void report_metaspace_summary(GCWhen::Type when, const MetaspaceSummary& metaspace_summary) const;
131 void report_gc_reference_stats(const ReferenceProcessorStats& rp) const;
132 void report_object_count_after_gc(BoolObjectClosure* object_filter) NOT_SERVICES_RETURN;
133 bool has_reported_gc_start() const;
134
135 protected:
136 GCTracer(GCName name) : _shared_gc_info(name) {}
137 virtual void report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp);
138 virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
139
140 private:
141 void send_garbage_collection_event() const;
142 void send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const;
143 void send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const;
144 void send_metaspace_chunk_free_list_summary(GCWhen::Type when, Metaspace::MetadataType mdtype, const MetaspaceChunkFreeListSummary& summary) const;
145 void send_reference_stats_event(ReferenceType type, size_t count) const;
146 void send_phase_events(TimePartitions* time_partitions) const;
147 };
148
149 class YoungGCTracer : public GCTracer {
150 static const uint UNSET_TENURING_THRESHOLD = (uint) -1;
151
152 uint _tenuring_threshold;
153
154 protected:
155 YoungGCTracer(GCName name) : GCTracer(name), _tenuring_threshold(UNSET_TENURING_THRESHOLD) {}
156 virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
157
158 public:
159 void report_promotion_failed(const PromotionFailedInfo& pf_info);
160 void report_tenuring_threshold(const uint tenuring_threshold);
161
162 private:
163 void send_young_gc_event() const;
164 void send_promotion_failed_event(const PromotionFailedInfo& pf_info) const;
165 };
166
167 class OldGCTracer : public GCTracer {
168 protected:
169 OldGCTracer(GCName name) : GCTracer(name) {}
170 virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
171
172 public:
173 void report_concurrent_mode_failure();
174
175 private:
176 void send_old_gc_event() const;
177 void send_concurrent_mode_failure_event();
178 };
179
180 class ParallelOldTracer : public OldGCTracer {
181 ParallelOldGCInfo _parallel_old_gc_info;
182
183 public:
184 ParallelOldTracer() : OldGCTracer(ParallelOld) {}
185 void report_dense_prefix(void* dense_prefix);
186
187 protected:
188 void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
189
190 private:
191 void send_parallel_old_event() const;
192 };
193
194 class SerialOldTracer : public OldGCTracer {
195 public:
196 SerialOldTracer() : OldGCTracer(SerialOld) {}
197 };
198
199 class ParallelScavengeTracer : public YoungGCTracer {
200 public:
201 ParallelScavengeTracer() : YoungGCTracer(ParallelScavenge) {}
202 };
203
204 class DefNewTracer : public YoungGCTracer {
205 public:
206 DefNewTracer() : YoungGCTracer(DefNew) {}
207 };
208
209 class ParNewTracer : public YoungGCTracer {
210 public:
211 ParNewTracer() : YoungGCTracer(ParNew) {}
212 };
213
214 #if INCLUDE_ALL_GCS
215 class G1NewTracer : public YoungGCTracer {
216 G1YoungGCInfo _g1_young_gc_info;
217
218 public:
219 G1NewTracer() : YoungGCTracer(G1New) {}
220
221 void report_yc_type(G1YCType type);
222 void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
223 void report_evacuation_info(EvacuationInfo* info);
224 void report_evacuation_failed(EvacuationFailedInfo& ef_info);
225
226 private:
227 void send_g1_young_gc_event();
228 void send_evacuation_info_event(EvacuationInfo* info);
229 void send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const;
230 };
231 #endif
232
233 class CMSTracer : public OldGCTracer {
234 public:
235 CMSTracer() : OldGCTracer(ConcurrentMarkSweep) {}
236 };
237
238 class G1OldTracer : public OldGCTracer {
239 public:
240 G1OldTracer() : OldGCTracer(G1Old) {}
241 };
242
243 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP