1 /*
2 * Copyright (c) 2012, 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 #ifndef SERIALGC
35 #include "gc_implementation/g1/g1YCTypes.hpp"
36 #endif
37
38 typedef uint GCId;
39
40 class GCHeapSummary;
41 class PermGenSummary;
42 class PSHeapSummary;
43 class ReferenceProcessorStats;
44 class TimePartitions;
45
46 class SharedGCInfo VALUE_OBJ_CLASS_SPEC {
47 static const jlong UNSET_TIMESTAMP = -1;
48
49 public:
50 static const GCId UNSET_GCID = (GCId)-1;
51
52 private:
53 GCId _id;
54 GCName _name;
55 GCCause::Cause _cause;
56 jlong _start_timestamp;
57 jlong _end_timestamp;
58 jlong _sum_of_pauses;
59 jlong _longest_pause;
60
61 public:
62 SharedGCInfo(GCName name) : _id(UNSET_GCID), _name(name), _cause(GCCause::_last_gc_cause),
63 _start_timestamp(UNSET_TIMESTAMP), _end_timestamp(UNSET_TIMESTAMP), _sum_of_pauses(0), _longest_pause(0) {}
64
65 void set_id(GCId id) { _id = id; }
66 GCId id() const { return _id; }
67
68 void set_start_timestamp(jlong timestamp) { _start_timestamp = timestamp; }
69 jlong start_timestamp() const { return _start_timestamp; }
70
71 void set_end_timestamp(jlong timestamp) { _end_timestamp = timestamp; }
72 jlong end_timestamp() const { return _end_timestamp; }
73
74 void set_name(GCName name) { _name = name; }
75 GCName name() const { return _name; }
76
77 void set_cause(GCCause::Cause cause) { _cause = cause; }
78 GCCause::Cause cause() const { return _cause; }
79
80 void set_sum_of_pauses(jlong duration) { _sum_of_pauses = duration; }
81 jlong sum_of_pauses() const { return _sum_of_pauses; }
82
83 void set_longest_pause(jlong duration) { _longest_pause = duration; }
84 jlong longest_pause() const { return _longest_pause; }
85 };
86
87 class ParallelOldGCInfo VALUE_OBJ_CLASS_SPEC {
88 void* _dense_prefix;
89 public:
90 ParallelOldGCInfo() : _dense_prefix(NULL) {}
91 void report_dense_prefix(void* addr) {
92 _dense_prefix = addr;
93 }
94 void* dense_prefix() const { return _dense_prefix; }
95 };
96
97 #ifndef SERIALGC
98
99 class G1YoungGCInfo VALUE_OBJ_CLASS_SPEC {
100 G1YCType _type;
101 public:
102 G1YoungGCInfo() : _type(G1YCTypeEndSentinel) {}
103 void set_type(G1YCType type) {
104 _type = type;
105 }
106 G1YCType type() const { return _type; }
107 };
108
109 #endif // SERIALGC
110
111 class GCTracer : public ResourceObj {
112 protected:
113 SharedGCInfo _shared_gc_info;
114
115 public:
116 void report_gc_start(GCCause::Cause cause, jlong timestamp);
117 void report_gc_end(jlong timestamp, TimePartitions* time_partitions);
118 void report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary, const PermGenSummary& perm_gen_summary) const;
119 void report_gc_reference_stats(const ReferenceProcessorStats& rp) const;
120
121 bool has_reported_gc_start() const;
122
123 protected:
124 GCTracer(GCName name) : _shared_gc_info(name) {}
125 virtual void report_gc_start_impl(GCCause::Cause cause, jlong timestamp);
126 virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
127
128 private:
129 void send_garbage_collection_event() const;
130 void send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const;
131 void send_perm_gen_summary_event(GCWhen::Type when, const PermGenSummary& perm_gen_summary) const;
132 void send_reference_stats_event(ReferenceType type, size_t count) const;
133 void send_phase_events(TimePartitions* time_partitions) const;
134 };
135
136 class YoungGCTracer : public GCTracer {
137 protected:
138 YoungGCTracer(GCName name) : GCTracer(name) {}
139
140 public:
141 void report_promotion_failed(const PromotionFailedInfo& pf_info);
142
143 protected:
144 virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
145
146 private:
147 void send_young_gc_event() const;
148 void send_promotion_failed_event(const PromotionFailedInfo& pf_info) const;
149 };
150
151 class OldGCTracer : public GCTracer {
152 protected:
153 OldGCTracer(GCName name) : GCTracer(name) {}
154
155 protected:
156 virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
157
158 private:
159 void send_old_gc_event() const;
160 };
161
162 class ParallelOldTracer : public OldGCTracer {
163 ParallelOldGCInfo _parallel_old_gc_info;
164
165 public:
166 ParallelOldTracer() : OldGCTracer(ParallelOld) {}
167 void report_dense_prefix(void* dense_prefix);
168
169 protected:
170 void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
171
172 private:
173 void send_parallel_old_event() const;
174 };
175
176 class SerialOldTracer : public OldGCTracer {
177 public:
178 SerialOldTracer() : OldGCTracer(SerialOld) {}
179 };
180
181 class ParallelScavengeTracer : public YoungGCTracer {
182 public:
183 ParallelScavengeTracer() : YoungGCTracer(ParallelScavenge) {}
184 };
185
186 class DefNewTracer : public YoungGCTracer {
187 public:
188 DefNewTracer() : YoungGCTracer(DefNew) {}
189 };
190
191 class ParNewTracer : public YoungGCTracer {
192 public:
193 ParNewTracer() : YoungGCTracer(ParNew) {}
194 };
195
196 #ifndef SERIALGC
197 class G1NewTracer : public YoungGCTracer {
198 G1YoungGCInfo _g1_young_gc_info;
199
200 public:
201 G1NewTracer() : YoungGCTracer(G1New) {}
202
203 void report_yc_type(G1YCType type);
204 void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
205
206 private:
207 void send_g1_young_gc_event();
208 };
209 #endif
210
211 class CMSTracer : public OldGCTracer {
212 public:
213 CMSTracer() : OldGCTracer(ConcurrentMarkSweep) {}
214 };
215
216 class G1OldTracer : public OldGCTracer {
217 public:
218 G1OldTracer() : OldGCTracer(G1Old) {}
219 };
220
221 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP