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 #include "precompiled.hpp"
26 #include "gc_implementation/shared/gcHeapSummary.hpp"
27 #include "gc_implementation/shared/gcTimer.hpp"
28 #include "gc_implementation/shared/gcTrace.hpp"
29 #include "memory/referenceProcessorStats.hpp"
30 #include "runtime/atomic.hpp"
31 #include "utilities/globalDefinitions.hpp"
32
33 #define assert_unset_gc_id() assert(_shared_gc_info.id() == SharedGCInfo::UNSET_GCID, "GC already started?")
34 #define assert_set_gc_id() assert(_shared_gc_info.id() != SharedGCInfo::UNSET_GCID, "GC not started?")
35
36 static volatile jlong GCTracer_next_gc_id = 0;
37 static GCId create_new_gc_id() {
38 return Atomic::add((jlong)1, &GCTracer_next_gc_id);
39 }
40
41 void GCTracer::report_gc_start_impl(GCCause::Cause cause, jlong timestamp) {
42 assert_unset_gc_id();
43
44 GCId gc_id = create_new_gc_id();
45 _shared_gc_info.set_id(gc_id);
46 _shared_gc_info.set_cause(cause);
47 _shared_gc_info.set_start_timestamp(timestamp);
48 }
49
50 void GCTracer::report_gc_start(GCCause::Cause cause, jlong timestamp) {
51 assert_unset_gc_id();
52
53 report_gc_start_impl(cause, timestamp);
54 }
55
56 bool GCTracer::has_reported_gc_start() const {
57 return _shared_gc_info.id() != SharedGCInfo::UNSET_GCID;
58 }
59
60 void GCTracer::report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions) {
61 assert_set_gc_id();
62
63 _shared_gc_info.set_sum_of_pauses(time_partitions->sum_of_pauses());
64 _shared_gc_info.set_longest_pause(time_partitions->longest_pause());
65 _shared_gc_info.set_end_timestamp(timestamp);
66
67 send_phase_events(time_partitions);
68 send_garbage_collection_event();
69 }
70
71 void GCTracer::report_gc_end(jlong timestamp, TimePartitions* time_partitions) {
72 assert_set_gc_id();
73
74 report_gc_end_impl(timestamp, time_partitions);
75
76 _shared_gc_info.set_id(SharedGCInfo::UNSET_GCID);
77 }
78
79 void GCTracer::report_gc_reference_processing(const ReferenceProcessorStats& rps) const {
80 assert_set_gc_id();
81
82 send_reference_processing_event(REF_SOFT, rps.soft_count());
83 send_reference_processing_event(REF_WEAK, rps.weak_count());
84 send_reference_processing_event(REF_FINAL, rps.final_count());
85 send_reference_processing_event(REF_PHANTOM, rps.phantom_count());
86 }
87
88 void GCTracer::report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary, const PermGenSummary& perm_gen_summary) const {
89 assert_set_gc_id();
90
91 send_gc_heap_summary_event(when, heap_summary);
92 send_perm_gen_summary_event(when, perm_gen_summary);
93 }
94
95 void YoungGCTracer::report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions) {
96 assert_set_gc_id();
97
98 GCTracer::report_gc_end_impl(timestamp, time_partitions);
99 send_young_gc_event();
100 }
101
102 void YoungGCTracer::report_promotion_failed(size_t size, uint count) {
103 assert_set_gc_id();
104
105 young_gc_info().register_promotion_failed();
106 send_promotion_failed_event(size, count);
107 }
108
109
110 void OldGCTracer::report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions) {
111 assert_set_gc_id();
112
113 GCTracer::report_gc_end_impl(timestamp, time_partitions);
114 send_old_gc_event();
115 }
116
117 void ParallelOldTracer::report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions) {
118 assert_set_gc_id();
119
120 OldGCTracer::report_gc_end_impl(timestamp, time_partitions);
121 send_parallel_old_event();
122 }
123
124 void ParallelOldTracer::report_dense_prefix(void* dense_prefix) {
125 assert_set_gc_id();
126
127 _parallel_old_gc_info.report_dense_prefix(dense_prefix);
128 }
129
130 #ifndef SERIALGC
131 void G1NewTracer::report_yc_type(G1YCType type) {
132 assert_set_gc_id();
133
134 _g1_young_gc_info.set_type(type);
135 }
136
137 void G1NewTracer::report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions) {
138 assert_set_gc_id();
139
140 YoungGCTracer::report_gc_end_impl(timestamp, time_partitions);
141 send_g1_young_gc_event();
142 }
143 #endif