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comparison src/share/vm/gc_implementation/shared/gcTrace.hpp @ 10405:f2110083203d

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8005849: JEP 167: Event-Based JVM Tracing Reviewed-by: acorn, coleenp, sla Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
author sla
date Mon, 10 Jun 2013 11:30:51 +0200
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children 2cbc8f3011a0
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10404:d0add7016434 10405:f2110083203d
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/klassInfoClosure.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
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 static const jlong UNSET_TIMESTAMP = -1;
52
53 public:
54 static const GCId UNSET_GCID = (GCId)-1;
55
56 private:
57 GCId _id;
58 GCName _name;
59 GCCause::Cause _cause;
60 jlong _start_timestamp;
61 jlong _end_timestamp;
62 jlong _sum_of_pauses;
63 jlong _longest_pause;
64
65 public:
66 SharedGCInfo(GCName name) : _id(UNSET_GCID), _name(name), _cause(GCCause::_last_gc_cause),
67 _start_timestamp(UNSET_TIMESTAMP), _end_timestamp(UNSET_TIMESTAMP), _sum_of_pauses(0), _longest_pause(0) {}
68
69 void set_id(GCId id) { _id = id; }
70 GCId id() const { return _id; }
71
72 void set_start_timestamp(jlong timestamp) { _start_timestamp = timestamp; }
73 jlong start_timestamp() const { return _start_timestamp; }
74
75 void set_end_timestamp(jlong timestamp) { _end_timestamp = timestamp; }
76 jlong end_timestamp() const { return _end_timestamp; }
77
78 void set_name(GCName name) { _name = name; }
79 GCName name() const { return _name; }
80
81 void set_cause(GCCause::Cause cause) { _cause = cause; }
82 GCCause::Cause cause() const { return _cause; }
83
84 void set_sum_of_pauses(jlong duration) { _sum_of_pauses = duration; }
85 jlong sum_of_pauses() const { return _sum_of_pauses; }
86
87 void set_longest_pause(jlong duration) { _longest_pause = duration; }
88 jlong longest_pause() const { return _longest_pause; }
89 };
90
91 class ParallelOldGCInfo VALUE_OBJ_CLASS_SPEC {
92 void* _dense_prefix;
93 public:
94 ParallelOldGCInfo() : _dense_prefix(NULL) {}
95 void report_dense_prefix(void* addr) {
96 _dense_prefix = addr;
97 }
98 void* dense_prefix() const { return _dense_prefix; }
99 };
100
101 #if INCLUDE_ALL_GCS
102
103 class G1YoungGCInfo VALUE_OBJ_CLASS_SPEC {
104 G1YCType _type;
105 public:
106 G1YoungGCInfo() : _type(G1YCTypeEndSentinel) {}
107 void set_type(G1YCType type) {
108 _type = type;
109 }
110 G1YCType type() const { return _type; }
111 };
112
113 #endif // INCLUDE_ALL_GCS
114
115 class GCTracer : public ResourceObj {
116 friend class ObjectCountEventSenderClosure;
117 protected:
118 SharedGCInfo _shared_gc_info;
119
120 public:
121 void report_gc_start(GCCause::Cause cause, jlong timestamp);
122 void report_gc_end(jlong timestamp, TimePartitions* time_partitions);
123 void report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary, const MetaspaceSummary& meta_space_summary) const;
124 void report_gc_reference_stats(const ReferenceProcessorStats& rp) const;
125 void report_object_count_after_gc(BoolObjectClosure* object_filter) NOT_SERVICES_RETURN;
126
127 bool has_reported_gc_start() const;
128
129 protected:
130 GCTracer(GCName name) : _shared_gc_info(name) {}
131 virtual void report_gc_start_impl(GCCause::Cause cause, jlong timestamp);
132 virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
133
134 private:
135 void send_garbage_collection_event() const;
136 void send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const;
137 void send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const;
138 void send_reference_stats_event(ReferenceType type, size_t count) const;
139 void send_phase_events(TimePartitions* time_partitions) const;
140 void send_object_count_after_gc_event(Klass* klass, jlong count, julong total_size) const NOT_SERVICES_RETURN;
141 bool should_send_object_count_after_gc_event() const;
142 };
143
144 class ObjectCountEventSenderClosure : public KlassInfoClosure {
145 GCTracer* _gc_tracer;
146 const double _size_threshold_percentage;
147 const size_t _total_size_in_words;
148 public:
149 ObjectCountEventSenderClosure(GCTracer* gc_tracer, size_t total_size_in_words) :
150 _gc_tracer(gc_tracer),
151 _size_threshold_percentage(ObjectCountCutOffPercent / 100),
152 _total_size_in_words(total_size_in_words)
153 {}
154 virtual void do_cinfo(KlassInfoEntry* entry);
155 protected:
156 virtual void send_event(KlassInfoEntry* entry);
157 private:
158 bool should_send_event(KlassInfoEntry* entry) const;
159 };
160
161 class YoungGCTracer : public GCTracer {
162 static const uint UNSET_TENURING_THRESHOLD = (uint) -1;
163
164 uint _tenuring_threshold;
165
166 protected:
167 YoungGCTracer(GCName name) : GCTracer(name), _tenuring_threshold(UNSET_TENURING_THRESHOLD) {}
168 virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
169
170 public:
171 void report_promotion_failed(const PromotionFailedInfo& pf_info);
172 void report_tenuring_threshold(const uint tenuring_threshold);
173
174 private:
175 void send_young_gc_event() const;
176 void send_promotion_failed_event(const PromotionFailedInfo& pf_info) const;
177 };
178
179 class OldGCTracer : public GCTracer {
180 protected:
181 OldGCTracer(GCName name) : GCTracer(name) {}
182 virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
183
184 public:
185 void report_concurrent_mode_failure();
186
187 private:
188 void send_old_gc_event() const;
189 void send_concurrent_mode_failure_event();
190 };
191
192 class ParallelOldTracer : public OldGCTracer {
193 ParallelOldGCInfo _parallel_old_gc_info;
194
195 public:
196 ParallelOldTracer() : OldGCTracer(ParallelOld) {}
197 void report_dense_prefix(void* dense_prefix);
198
199 protected:
200 void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
201
202 private:
203 void send_parallel_old_event() const;
204 };
205
206 class SerialOldTracer : public OldGCTracer {
207 public:
208 SerialOldTracer() : OldGCTracer(SerialOld) {}
209 };
210
211 class ParallelScavengeTracer : public YoungGCTracer {
212 public:
213 ParallelScavengeTracer() : YoungGCTracer(ParallelScavenge) {}
214 };
215
216 class DefNewTracer : public YoungGCTracer {
217 public:
218 DefNewTracer() : YoungGCTracer(DefNew) {}
219 };
220
221 class ParNewTracer : public YoungGCTracer {
222 public:
223 ParNewTracer() : YoungGCTracer(ParNew) {}
224 };
225
226 #if INCLUDE_ALL_GCS
227 class G1NewTracer : public YoungGCTracer {
228 G1YoungGCInfo _g1_young_gc_info;
229
230 public:
231 G1NewTracer() : YoungGCTracer(G1New) {}
232
233 void report_yc_type(G1YCType type);
234 void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
235 void report_evacuation_info(EvacuationInfo* info);
236 void report_evacuation_failed(EvacuationFailedInfo& ef_info);
237
238 private:
239 void send_g1_young_gc_event();
240 void send_evacuation_info_event(EvacuationInfo* info);
241 void send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const;
242 };
243 #endif
244
245 class CMSTracer : public OldGCTracer {
246 public:
247 CMSTracer() : OldGCTracer(ConcurrentMarkSweep) {}
248 };
249
250 class G1OldTracer : public OldGCTracer {
251 public:
252 G1OldTracer() : OldGCTracer(G1Old) {}
253 };
254
255 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP