memoryService.hpp revision 5776:de6a9e811145 
1/*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
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7 * published by the Free Software Foundation.
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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
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24
25#ifndef SHARE_VM_SERVICES_MEMORYSERVICE_HPP
26#define SHARE_VM_SERVICES_MEMORYSERVICE_HPP
27
28#include "memory/allocation.hpp"
29#include "memory/generation.hpp"
30#include "runtime/handles.hpp"
31#include "services/memoryUsage.hpp"
32#include "gc_interface/gcCause.hpp"
33
34// Forward declaration
35class MemoryPool;
36class MemoryManager;
37class GCMemoryManager;
38class CollectedHeap;
39class Generation;
40class DefNewGeneration;
41class PSYoungGen;
42class PSOldGen;
43class CodeHeap;
44class ContiguousSpace;
45class CompactibleFreeListSpace;
46class GenCollectedHeap;
47class ParallelScavengeHeap;
48class G1CollectedHeap;
49
50// VM Monitoring and Management Support
51
52class MemoryService : public AllStatic {
53private:
54  enum {
55    init_pools_list_size = 10,
56    init_managers_list_size = 5
57  };
58
59  // index for minor and major generations
60  enum {
61    minor = 0,
62    major = 1,
63    n_gens = 2
64  };
65
66  static GrowableArray<MemoryPool*>*    _pools_list;
67  static GrowableArray<MemoryManager*>* _managers_list;
68
69  // memory managers for minor and major GC statistics
70  static GCMemoryManager*               _major_gc_manager;
71  static GCMemoryManager*               _minor_gc_manager;
72
73  // Code heap memory pool
74  static MemoryPool*                    _code_heap_pool;
75
76  static MemoryPool*                    _metaspace_pool;
77  static MemoryPool*                    _compressed_class_pool;
78
79  static void add_generation_memory_pool(Generation* gen,
80                                         MemoryManager* major_mgr,
81                                         MemoryManager* minor_mgr);
82  static void add_generation_memory_pool(Generation* gen,
83                                         MemoryManager* major_mgr) {
84    add_generation_memory_pool(gen, major_mgr, NULL);
85  }
86
87
88  static void add_psYoung_memory_pool(PSYoungGen* gen,
89                                      MemoryManager* major_mgr,
90                                      MemoryManager* minor_mgr);
91  static void add_psOld_memory_pool(PSOldGen* gen,
92                                    MemoryManager* mgr);
93
94  static void add_g1YoungGen_memory_pool(G1CollectedHeap* g1h,
95                                         MemoryManager* major_mgr,
96                                         MemoryManager* minor_mgr);
97  static void add_g1OldGen_memory_pool(G1CollectedHeap* g1h,
98                                       MemoryManager* mgr);
99
100  static MemoryPool* add_space(ContiguousSpace* space,
101                               const char* name,
102                               bool is_heap,
103                               size_t max_size,
104                               bool support_usage_threshold);
105  static MemoryPool* add_survivor_spaces(DefNewGeneration* gen,
106                                         const char* name,
107                                         bool is_heap,
108                                         size_t max_size,
109                                         bool support_usage_threshold);
110  static MemoryPool* add_gen(Generation* gen,
111                             const char* name,
112                             bool is_heap,
113                             bool support_usage_threshold);
114  static MemoryPool* add_cms_space(CompactibleFreeListSpace* space,
115                                   const char* name,
116                                   bool is_heap,
117                                   size_t max_size,
118                                   bool support_usage_threshold);
119
120  static void add_gen_collected_heap_info(GenCollectedHeap* heap);
121  static void add_parallel_scavenge_heap_info(ParallelScavengeHeap* heap);
122  static void add_g1_heap_info(G1CollectedHeap* g1h);
123
124public:
125  static void set_universe_heap(CollectedHeap* heap);
126  static void add_code_heap_memory_pool(CodeHeap* heap);
127  static void add_metaspace_memory_pools();
128
129  static MemoryPool*    get_memory_pool(instanceHandle pool);
130  static MemoryManager* get_memory_manager(instanceHandle mgr);
131
132  static const int num_memory_pools() {
133    return _pools_list->length();
134  }
135  static const int num_memory_managers() {
136    return _managers_list->length();
137  }
138
139  static MemoryPool* get_memory_pool(int index) {
140    return _pools_list->at(index);
141  }
142
143  static MemoryManager* get_memory_manager(int index) {
144    return _managers_list->at(index);
145  }
146
147  static void track_memory_usage();
148  static void track_code_cache_memory_usage() {
149    track_memory_pool_usage(_code_heap_pool);
150  }
151  static void track_metaspace_memory_usage() {
152    track_memory_pool_usage(_metaspace_pool);
153  }
154  static void track_compressed_class_memory_usage() {
155    track_memory_pool_usage(_compressed_class_pool);
156  }
157  static void track_memory_pool_usage(MemoryPool* pool);
158
159  static void gc_begin(bool fullGC, bool recordGCBeginTime,
160                       bool recordAccumulatedGCTime,
161                       bool recordPreGCUsage, bool recordPeakUsage);
162  static void gc_end(bool fullGC, bool recordPostGCUsage,
163                     bool recordAccumulatedGCTime,
164                     bool recordGCEndTime, bool countCollection,
165                     GCCause::Cause cause);
166
167
168  static void oops_do(OopClosure* f);
169
170  static bool get_verbose() { return PrintGC; }
171  static bool set_verbose(bool verbose);
172
173  // Create an instance of java/lang/management/MemoryUsage
174  static Handle create_MemoryUsage_obj(MemoryUsage usage, TRAPS);
175
176  static const GCMemoryManager* get_minor_gc_manager() {
177      return _minor_gc_manager;
178  }
179
180  static const GCMemoryManager* get_major_gc_manager() {
181      return _major_gc_manager;
182  }
183};
184
185class TraceMemoryManagerStats : public StackObj {
186private:
187  bool         _fullGC;
188  bool         _recordGCBeginTime;
189  bool         _recordPreGCUsage;
190  bool         _recordPeakUsage;
191  bool         _recordPostGCUsage;
192  bool         _recordAccumulatedGCTime;
193  bool         _recordGCEndTime;
194  bool         _countCollection;
195  GCCause::Cause _cause;
196public:
197  TraceMemoryManagerStats() {}
198  TraceMemoryManagerStats(bool fullGC,
199                          GCCause::Cause cause,
200                          bool recordGCBeginTime = true,
201                          bool recordPreGCUsage = true,
202                          bool recordPeakUsage = true,
203                          bool recordPostGCUsage = true,
204                          bool recordAccumulatedGCTime = true,
205                          bool recordGCEndTime = true,
206                          bool countCollection = true);
207
208  void initialize(bool fullGC,
209                  GCCause::Cause cause,
210                  bool recordGCBeginTime,
211                  bool recordPreGCUsage,
212                  bool recordPeakUsage,
213                  bool recordPostGCUsage,
214                  bool recordAccumulatedGCTime,
215                  bool recordGCEndTime,
216                  bool countCollection);
217
218  TraceMemoryManagerStats(Generation::Name kind, GCCause::Cause cause);
219  ~TraceMemoryManagerStats();
220};
221
222#endif // SHARE_VM_SERVICES_MEMORYSERVICE_HPP
223