1 /*
2 * Copyright (c) 2019, 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_GC_G1_G1TRACE_HPP
26 #define SHARE_GC_G1_G1TRACE_HPP
27
28 #include "gc/shared/gcTrace.hpp"
29 #include "gc/g1/g1YCTypes.hpp"
30
31 class G1EvacuationInfo;
32 class G1HeapSummary;
33 class G1EvacSummary;
34
35 class G1YoungGCInfo {
36 G1YCType _type;
37 public:
38 G1YoungGCInfo() : _type(G1YCTypeEndSentinel) {}
39 void set_type(G1YCType type) {
40 _type = type;
41 }
42 G1YCType type() const { return _type; }
43 };
44
45 class G1NewTracer : public YoungGCTracer {
46 G1YoungGCInfo _g1_young_gc_info;
47
48 public:
49 G1NewTracer() : YoungGCTracer(G1New) {}
50
51 void report_yc_type(G1YCType type);
52 void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
53 void report_evacuation_info(G1EvacuationInfo* info);
54 void report_evacuation_failed(EvacuationFailedInfo& ef_info);
55
56 void report_evacuation_statistics(const G1EvacSummary& young_summary, const G1EvacSummary& old_summary) const;
57
58 void report_basic_ihop_statistics(size_t threshold,
59 size_t target_occupancy,
60 size_t current_occupancy,
61 size_t last_allocation_size,
62 double last_allocation_duration,
63 double last_marking_length);
64 void report_adaptive_ihop_statistics(size_t threshold,
65 size_t internal_target_occupancy,
66 size_t current_occupancy,
67 size_t additional_buffer_size,
68 double predicted_allocation_rate,
69 double predicted_marking_length,
70 bool prediction_active);
71 private:
72 void send_g1_young_gc_event();
73 void send_evacuation_info_event(G1EvacuationInfo* info);
74 void send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const;
75
76 void send_young_evacuation_statistics(const G1EvacSummary& summary) const;
77 void send_old_evacuation_statistics(const G1EvacSummary& summary) const;
78
79 void send_basic_ihop_statistics(size_t threshold,
80 size_t target_occupancy,
81 size_t current_occupancy,
82 size_t last_allocation_size,
83 double last_allocation_duration,
84 double last_marking_length);
85 void send_adaptive_ihop_statistics(size_t threshold,
86 size_t internal_target_occupancy,
87 size_t current_occupancy,
88 size_t additional_buffer_size,
89 double predicted_allocation_rate,
90 double predicted_marking_length,
91 bool prediction_active);
92 };
93
94 class G1OldTracer : public OldGCTracer {
95 protected:
96 void report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp);
97 public:
98 G1OldTracer() : OldGCTracer(G1Old) {}
99 void set_gc_cause(GCCause::Cause cause);
100 };
101
102 class G1FullGCTracer : public OldGCTracer {
103 public:
104 G1FullGCTracer() : OldGCTracer(G1Full) {}
105 };
106
107 class G1MMUTracer : public AllStatic {
108 static void send_g1_mmu_event(double time_slice_ms, double gc_time_ms, double max_time_ms);
109
110 public:
111 static void report_mmu(double time_slice_sec, double gc_time_sec, double max_time_sec);
112 };
113
114 #endif