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comparison src/share/vm/services/g1MemoryPool.cpp @ 1089:db0d5eba9d20

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6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC Summary: It introduces the necessary memory pools for G1. Reviewed-by: mchung, ysr
author tonyp
date Fri, 20 Nov 2009 14:47:01 -0500
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children ed52bcc32739
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1088:3fc996d4edd2 1089:db0d5eba9d20
1 /*
2 * Copyright (c) 2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 # include "incls/_precompiled.incl"
26 # include "incls/_g1MemoryPool.cpp.incl"
27
28 G1MemoryPoolSuper::G1MemoryPoolSuper(G1CollectedHeap* g1h,
29 const char* name,
30 size_t init_size,
31 size_t max_size,
32 bool support_usage_threshold) :
33 _g1h(g1h), CollectedMemoryPool(name,
34 MemoryPool::Heap,
35 init_size,
36 max_size,
37 support_usage_threshold) {
38 assert(UseG1GC, "sanity");
39 }
40
41 // See the comment at the top of g1MemoryPool.hpp
42 size_t G1MemoryPoolSuper::eden_space_committed(G1CollectedHeap* g1h) {
43 return eden_space_used(g1h);
44 }
45
46 // See the comment at the top of g1MemoryPool.hpp
47 size_t G1MemoryPoolSuper::eden_space_used(G1CollectedHeap* g1h) {
48 size_t young_list_length = g1h->young_list_length();
49 size_t eden_used = young_list_length * HeapRegion::GrainBytes;
50 size_t survivor_used = survivor_space_used(g1h);
51 eden_used = subtract_up_to_zero(eden_used, survivor_used);
52 return eden_used;
53 }
54
55 // See the comment at the top of g1MemoryPool.hpp
56 size_t G1MemoryPoolSuper::eden_space_max(G1CollectedHeap* g1h) {
57 return eden_space_committed(g1h);
58 }
59
60 // See the comment at the top of g1MemoryPool.hpp
61 size_t G1MemoryPoolSuper::survivor_space_committed(G1CollectedHeap* g1h) {
62 return survivor_space_used(g1h);
63 }
64
65 // See the comment at the top of g1MemoryPool.hpp
66 size_t G1MemoryPoolSuper::survivor_space_used(G1CollectedHeap* g1h) {
67 size_t survivor_num = g1h->g1_policy()->recorded_survivor_regions();
68 size_t survivor_used = survivor_num * HeapRegion::GrainBytes;
69 return survivor_used;
70 }
71
72 // See the comment at the top of g1MemoryPool.hpp
73 size_t G1MemoryPoolSuper::survivor_space_max(G1CollectedHeap* g1h) {
74 return survivor_space_committed(g1h);
75 }
76
77 // See the comment at the top of g1MemoryPool.hpp
78 size_t G1MemoryPoolSuper::old_space_committed(G1CollectedHeap* g1h) {
79 size_t committed = overall_committed(g1h);
80 size_t eden_committed = eden_space_committed(g1h);
81 size_t survivor_committed = survivor_space_committed(g1h);
82 committed = subtract_up_to_zero(committed, eden_committed);
83 committed = subtract_up_to_zero(committed, survivor_committed);
84 return committed;
85 }
86
87 // See the comment at the top of g1MemoryPool.hpp
88 size_t G1MemoryPoolSuper::old_space_used(G1CollectedHeap* g1h) {
89 size_t used = overall_used(g1h);
90 size_t eden_used = eden_space_used(g1h);
91 size_t survivor_used = survivor_space_used(g1h);
92 used = subtract_up_to_zero(used, eden_used);
93 used = subtract_up_to_zero(used, survivor_used);
94 return used;
95 }
96
97 // See the comment at the top of g1MemoryPool.hpp
98 size_t G1MemoryPoolSuper::old_space_max(G1CollectedHeap* g1h) {
99 size_t max = g1h->g1_reserved_obj_bytes();
100 size_t eden_max = eden_space_max(g1h);
101 size_t survivor_max = survivor_space_max(g1h);
102 max = subtract_up_to_zero(max, eden_max);
103 max = subtract_up_to_zero(max, survivor_max);
104 return max;
105 }
106
107 G1EdenPool::G1EdenPool(G1CollectedHeap* g1h) :
108 G1MemoryPoolSuper(g1h,
109 "G1 Eden",
110 eden_space_committed(g1h), /* init_size */
111 eden_space_max(g1h), /* max_size */
112 false /* support_usage_threshold */) {
113 }
114
115 MemoryUsage G1EdenPool::get_memory_usage() {
116 size_t maxSize = max_size();
117 size_t used = used_in_bytes();
118 size_t committed = eden_space_committed();
119
120 return MemoryUsage(initial_size(), used, committed, maxSize);
121 }
122
123 G1SurvivorPool::G1SurvivorPool(G1CollectedHeap* g1h) :
124 G1MemoryPoolSuper(g1h,
125 "G1 Survivor",
126 survivor_space_committed(g1h), /* init_size */
127 survivor_space_max(g1h), /* max_size */
128 false /* support_usage_threshold */) {
129 }
130
131 MemoryUsage G1SurvivorPool::get_memory_usage() {
132 size_t maxSize = max_size();
133 size_t used = used_in_bytes();
134 size_t committed = survivor_space_committed();
135
136 return MemoryUsage(initial_size(), used, committed, maxSize);
137 }
138
139 G1OldGenPool::G1OldGenPool(G1CollectedHeap* g1h) :
140 G1MemoryPoolSuper(g1h,
141 "G1 Old Gen",
142 old_space_committed(g1h), /* init_size */
143 old_space_max(g1h), /* max_size */
144 true /* support_usage_threshold */) {
145 }
146
147 MemoryUsage G1OldGenPool::get_memory_usage() {
148 size_t maxSize = max_size();
149 size_t used = used_in_bytes();
150 size_t committed = old_space_committed();
151
152 return MemoryUsage(initial_size(), used, committed, maxSize);
153 }