Mercurial > hg > truffle
comparison src/share/vm/gc_implementation/g1/g1HRPrinter.hpp @ 3778:5f6f2615433a
7049999: G1: Make the G1PrintHeapRegions output consistent and complete
Summary: Extend and make more consistent the output from the G1PrintHeapRegions flag.
Reviewed-by: johnc, jmasa
author | tonyp |
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date | Fri, 24 Jun 2011 12:38:49 -0400 |
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3777:e8b0b0392037 | 3778:5f6f2615433a |
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1 /* | |
2 * Copyright (c) 2011, 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_G1_G1HRPRINTER_HPP | |
26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1HRPRINTER_HPP | |
27 | |
28 #include "memory/allocation.hpp" | |
29 #include "gc_implementation/g1/heapRegion.hpp" | |
30 | |
31 #define SKIP_RETIRED_FULL_REGIONS 1 | |
32 | |
33 class G1HRPrinter VALUE_OBJ_CLASS_SPEC { | |
34 public: | |
35 typedef enum { | |
36 Alloc, | |
37 AllocForce, | |
38 Retire, | |
39 Reuse, | |
40 CSet, | |
41 EvacFailure, | |
42 Cleanup, | |
43 PostCompaction, | |
44 Commit, | |
45 Uncommit | |
46 } ActionType; | |
47 | |
48 typedef enum { | |
49 Unset, | |
50 Eden, | |
51 Survivor, | |
52 Old, | |
53 SingleHumongous, | |
54 StartsHumongous, | |
55 ContinuesHumongous | |
56 } RegionType; | |
57 | |
58 typedef enum { | |
59 StartGC, | |
60 EndGC, | |
61 StartFullGC, | |
62 EndFullGC | |
63 } PhaseType; | |
64 | |
65 private: | |
66 bool _active; | |
67 | |
68 static const char* action_name(ActionType action); | |
69 static const char* region_type_name(RegionType type); | |
70 static const char* phase_name(PhaseType phase); | |
71 | |
72 // Print an action event. This version is used in most scenarios and | |
73 // only prints the region's bottom. The parameters type and top are | |
74 // optional (the "not set" values are Unset and NULL). | |
75 static void print(ActionType action, RegionType type, | |
76 HeapRegion* hr, HeapWord* top); | |
77 | |
78 // Print an action event. This version prints both the region's | |
79 // bottom and end. Used for Commit / Uncommit events. | |
80 static void print(ActionType action, HeapWord* bottom, HeapWord* end); | |
81 | |
82 // Print a phase event. | |
83 static void print(PhaseType phase, size_t phase_num); | |
84 | |
85 public: | |
86 // In some places we iterate over a list in order to generate output | |
87 // for the list's elements. By exposing this we can avoid this | |
88 // iteration if the printer is not active. | |
89 const bool is_active() { return _active; } | |
90 | |
91 // Have to set this explicitly as we have to do this during the | |
92 // heap's initialize() method, not in the constructor. | |
93 void set_active(bool active) { _active = active; } | |
94 | |
95 // The methods below are convenient wrappers for the print() methods. | |
96 | |
97 void alloc(HeapRegion* hr, RegionType type, bool force = false) { | |
98 if (is_active()) { | |
99 print((!force) ? Alloc : AllocForce, type, hr, NULL); | |
100 } | |
101 } | |
102 | |
103 void alloc(RegionType type, HeapRegion* hr, HeapWord* top) { | |
104 if (is_active()) { | |
105 print(Alloc, type, hr, top); | |
106 } | |
107 } | |
108 | |
109 void retire(HeapRegion* hr) { | |
110 if (is_active()) { | |
111 if (!SKIP_RETIRED_FULL_REGIONS || hr->top() < hr->end()) { | |
112 print(Retire, Unset, hr, hr->top()); | |
113 } | |
114 } | |
115 } | |
116 | |
117 void reuse(HeapRegion* hr) { | |
118 if (is_active()) { | |
119 print(Reuse, Unset, hr, NULL); | |
120 } | |
121 } | |
122 | |
123 void cset(HeapRegion* hr) { | |
124 if (is_active()) { | |
125 print(CSet, Unset, hr, NULL); | |
126 } | |
127 } | |
128 | |
129 void evac_failure(HeapRegion* hr) { | |
130 if (is_active()) { | |
131 print(EvacFailure, Unset, hr, NULL); | |
132 } | |
133 } | |
134 | |
135 void cleanup(HeapRegion* hr) { | |
136 if (is_active()) { | |
137 print(Cleanup, Unset, hr, NULL); | |
138 } | |
139 } | |
140 | |
141 void post_compaction(HeapRegion* hr, RegionType type) { | |
142 if (is_active()) { | |
143 print(PostCompaction, type, hr, hr->top()); | |
144 } | |
145 } | |
146 | |
147 void commit(HeapWord* bottom, HeapWord* end) { | |
148 if (is_active()) { | |
149 print(Commit, bottom, end); | |
150 } | |
151 } | |
152 | |
153 void uncommit(HeapWord* bottom, HeapWord* end) { | |
154 if (is_active()) { | |
155 print(Uncommit, bottom, end); | |
156 } | |
157 } | |
158 | |
159 void start_gc(bool full, size_t gc_num) { | |
160 if (is_active()) { | |
161 if (!full) { | |
162 print(StartGC, gc_num); | |
163 } else { | |
164 print(StartFullGC, gc_num); | |
165 } | |
166 } | |
167 } | |
168 | |
169 void end_gc(bool full, size_t gc_num) { | |
170 if (is_active()) { | |
171 if (!full) { | |
172 print(EndGC, gc_num); | |
173 } else { | |
174 print(EndFullGC, gc_num); | |
175 } | |
176 } | |
177 } | |
178 | |
179 G1HRPrinter() : _active(false) { } | |
180 }; | |
181 | |
182 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1HRPRINTER_HPP |