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comparison src/share/vm/services/memoryService.hpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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1 /*
2 * Copyright 2003-2006 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 // Forward declaration
26 class MemoryPool;
27 class MemoryManager;
28 class GCMemoryManager;
29 class CollectedHeap;
30 class Generation;
31 class DefNewGeneration;
32 class PSYoungGen;
33 class PSOldGen;
34 class PSPermGen;
35 class CodeHeap;
36 class ContiguousSpace;
37 class CompactibleFreeListSpace;
38 class PermanentGenerationSpec;
39 class GenCollectedHeap;
40 class ParallelScavengeHeap;
41 class CompactingPermGenGen;
42 class CMSPermGenGen;
43
44 // VM Monitoring and Management Support
45
46 class MemoryService : public AllStatic {
47 private:
48 enum {
49 init_pools_list_size = 10,
50 init_managers_list_size = 5
51 };
52
53 // index for minor and major generations
54 enum {
55 minor = 0,
56 major = 1,
57 n_gens = 2
58 };
59
60 static GrowableArray<MemoryPool*>* _pools_list;
61 static GrowableArray<MemoryManager*>* _managers_list;
62
63 // memory managers for minor and major GC statistics
64 static GCMemoryManager* _major_gc_manager;
65 static GCMemoryManager* _minor_gc_manager;
66
67 // Code heap memory pool
68 static MemoryPool* _code_heap_pool;
69
70 static void add_generation_memory_pool(Generation* gen,
71 MemoryManager* major_mgr,
72 MemoryManager* minor_mgr);
73 static void add_generation_memory_pool(Generation* gen,
74 MemoryManager* major_mgr) {
75 add_generation_memory_pool(gen, major_mgr, NULL);
76 }
77
78 static void add_compact_perm_gen_memory_pool(CompactingPermGenGen* perm_gen,
79 MemoryManager* mgr);
80 static void add_cms_perm_gen_memory_pool(CMSPermGenGen* perm_gen,
81 MemoryManager* mgr);
82
83 static void add_psYoung_memory_pool(PSYoungGen* gen,
84 MemoryManager* major_mgr,
85 MemoryManager* minor_mgr);
86 static void add_psOld_memory_pool(PSOldGen* gen,
87 MemoryManager* mgr);
88 static void add_psPerm_memory_pool(PSPermGen* perm,
89 MemoryManager* mgr);
90
91
92 static MemoryPool* add_space(ContiguousSpace* space,
93 const char* name,
94 bool is_heap,
95 size_t max_size,
96 bool support_usage_threshold);
97 static MemoryPool* add_survivor_spaces(DefNewGeneration* gen,
98 const char* name,
99 bool is_heap,
100 size_t max_size,
101 bool support_usage_threshold);
102 static MemoryPool* add_gen(Generation* gen,
103 const char* name,
104 bool is_heap,
105 bool support_usage_threshold);
106 static MemoryPool* add_cms_space(CompactibleFreeListSpace* space,
107 const char* name,
108 bool is_heap,
109 size_t max_size,
110 bool support_usage_threshold);
111
112 static void add_gen_collected_heap_info(GenCollectedHeap* heap);
113 static void add_parallel_scavenge_heap_info(ParallelScavengeHeap* heap);
114
115 public:
116 static void set_universe_heap(CollectedHeap* heap);
117 static void add_code_heap_memory_pool(CodeHeap* heap);
118
119 static MemoryPool* get_memory_pool(instanceHandle pool);
120 static MemoryManager* get_memory_manager(instanceHandle mgr);
121
122 static const int num_memory_pools() {
123 return _pools_list->length();
124 }
125 static const int num_memory_managers() {
126 return _managers_list->length();
127 }
128
129 static MemoryPool* get_memory_pool(int index) {
130 return _pools_list->at(index);
131 }
132
133 static MemoryManager* get_memory_manager(int index) {
134 return _managers_list->at(index);
135 }
136
137 static void track_memory_usage();
138 static void track_code_cache_memory_usage() {
139 track_memory_pool_usage(_code_heap_pool);
140 }
141 static void track_memory_pool_usage(MemoryPool* pool);
142
143 static void gc_begin(bool fullGC);
144 static void gc_end(bool fullGC);
145
146 static void oops_do(OopClosure* f);
147
148 static bool get_verbose() { return PrintGC; }
149 static bool set_verbose(bool verbose);
150
151 // Create an instance of java/lang/management/MemoryUsage
152 static Handle create_MemoryUsage_obj(MemoryUsage usage, TRAPS);
153 };
154
155 class TraceMemoryManagerStats : public StackObj {
156 private:
157 bool _fullGC;
158 public:
159 TraceMemoryManagerStats(bool fullGC);
160 TraceMemoryManagerStats(Generation::Name kind);
161 ~TraceMemoryManagerStats();
162 };