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/promotionFailedInfo.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 class BoolObjectClosure;
46
47 class SharedGCInfo VALUE_OBJ_CLASS_SPEC {
48 static const jlong UNSET_TIMESTAMP = -1;
49
50 public:
51 static const GCId UNSET_GCID = (GCId)-1;
52
53 private:
54 GCId _id;
55 GCName _name;
56 GCCause::Cause _cause;
57 jlong _start_timestamp;
58 jlong _end_timestamp;
59 jlong _sum_of_pauses;
60 jlong _longest_pause;
61
62 public:
63 SharedGCInfo(GCName name) : _id(UNSET_GCID), _name(name), _cause(GCCause::_last_gc_cause),
64 _start_timestamp(UNSET_TIMESTAMP), _end_timestamp(UNSET_TIMESTAMP), _sum_of_pauses(0), _longest_pause(0) {}
65
66 void set_id(GCId id) { _id = id; }
67 GCId id() const { return _id; }
68
69 void set_start_timestamp(jlong timestamp) { _start_timestamp = timestamp; }
70 jlong start_timestamp() const { return _start_timestamp; }
71
72 void set_end_timestamp(jlong timestamp) { _end_timestamp = timestamp; }
73 jlong end_timestamp() const { return _end_timestamp; }
74
75 void set_name(GCName name) { _name = name; }
76 GCName name() const { return _name; }
77
78 void set_cause(GCCause::Cause cause) { _cause = cause; }
79 GCCause::Cause cause() const { return _cause; }
80
81 void set_sum_of_pauses(jlong duration) { _sum_of_pauses = duration; }
82 jlong sum_of_pauses() const { return _sum_of_pauses; }
83
84 void set_longest_pause(jlong duration) { _longest_pause = duration; }
85 jlong longest_pause() const { return _longest_pause; }
86 };
87
88 class ParallelOldGCInfo VALUE_OBJ_CLASS_SPEC {
89 void* _dense_prefix;
90 public:
91 ParallelOldGCInfo() : _dense_prefix(NULL) {}
92 void report_dense_prefix(void* addr) {
93 _dense_prefix = addr;
94 }
95 void* dense_prefix() const { return _dense_prefix; }
96 };
97
98 #ifndef SERIALGC
99
100 class G1YoungGCInfo VALUE_OBJ_CLASS_SPEC {
101 G1YCType _type;
102 public:
103 G1YoungGCInfo() : _type(G1YCTypeEndSentinel) {}
104 void set_type(G1YCType type) {
105 _type = type;
106 }
107 G1YCType type() const { return _type; }
108 };
109
110 #endif // SERIALGC
111
112 class GCTracer : public ResourceObj {
113 friend class ObjectCountEventSenderClosure;
114 protected:
115 SharedGCInfo _shared_gc_info;
116
117 public:
118 void report_gc_start(GCCause::Cause cause, jlong timestamp);
119 void report_gc_end(jlong timestamp, TimePartitions* time_partitions);
120 void report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary, const PermGenSummary& perm_gen_summary) const;
121 void report_gc_reference_stats(const ReferenceProcessorStats& rp) const;
122 void report_object_count_after_gc(BoolObjectClosure* object_filter);
123
124 bool has_reported_gc_start() const;
125
126 protected:
127 GCTracer(GCName name) : _shared_gc_info(name) {}
128 virtual void report_gc_start_impl(GCCause::Cause cause, jlong timestamp);
129 virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
130
131 private:
132 void send_garbage_collection_event() const;
133 void send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const;
134 void send_perm_gen_summary_event(GCWhen::Type when, const PermGenSummary& perm_gen_summary) const;
135 void send_reference_stats_event(ReferenceType type, size_t count) const;
136 void send_phase_events(TimePartitions* time_partitions) const;
137 void send_object_count_after_gc_event(klassOop klass, jlong count, julong total_size) const;
138 bool should_send_object_count_after_gc_event() const;
139 };
140
141 class YoungGCTracer : public GCTracer {
142 protected:
143 YoungGCTracer(GCName name) : GCTracer(name) {}
144
145 public:
146 virtual void report_promotion_failed(const PromotionFailedInfo& pf_info);
147
148 protected:
149 virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
150
151 private:
152 void send_young_gc_event() const;
153 void send_promotion_failed_event(const PromotionFailedInfo& pf_info) const;
154 };
155
156 class OldGCTracer : public GCTracer {
157 protected:
158 OldGCTracer(GCName name) : GCTracer(name) {}
159
160 protected:
161 virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
162
163 private:
164 void send_old_gc_event() const;
165 };
166
167 class ParallelOldTracer : public OldGCTracer {
168 ParallelOldGCInfo _parallel_old_gc_info;
169
170 public:
171 ParallelOldTracer() : OldGCTracer(ParallelOld) {}
172 void report_dense_prefix(void* dense_prefix);
173
174 protected:
175 void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
176
177 private:
178 void send_parallel_old_event() const;
179 };
180
181 class SerialOldTracer : public OldGCTracer {
182 public:
183 SerialOldTracer() : OldGCTracer(SerialOld) {}
184 };
185
186 class ParallelScavengeTracer : public YoungGCTracer {
187 public:
188 ParallelScavengeTracer() : YoungGCTracer(ParallelScavenge) {}
189 };
190
191 class DefNewTracer : public YoungGCTracer {
192 public:
193 DefNewTracer() : YoungGCTracer(DefNew) {}
194 };
195
196 class ParNewTracer : public YoungGCTracer {
197 public:
198 ParNewTracer() : YoungGCTracer(ParNew) {}
199 };
200
201 #ifndef SERIALGC
202 class G1NewTracer : public YoungGCTracer {
203 G1YoungGCInfo _g1_young_gc_info;
204
205 public:
206 G1NewTracer() : YoungGCTracer(G1New) {}
207
208 void report_yc_type(G1YCType type);
209 void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
210
211 private:
212 void send_g1_young_gc_event();
213 };
214 #endif
215
216 class CMSTracer : public OldGCTracer {
217 public:
218 CMSTracer() : OldGCTracer(ConcurrentMarkSweep) {}
219 };
220
221 class G1OldTracer : public OldGCTracer {
222 public:
223 G1OldTracer() : OldGCTracer(G1Old) {}
224 };
225
226 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP