author | stuefe |
Sat, 16 Jun 2018 07:05:09 +0200 | |
changeset 50600 | 8e17fffa0a4b |
parent 49936 | 4da7dce7e2bf |
child 50635 | 5d3c5af82654 |
child 56508 | f67f588ebf15 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
49936
4da7dce7e2bf
8201542: Remove unused _gc_timer field in GCMemoryManager
zgu
parents:
49658
diff
changeset
|
2 |
* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved. |
1 | 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 |
* |
|
5547
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
4459
diff
changeset
|
19 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
4459
diff
changeset
|
20 |
* or visit www.oracle.com if you need additional information or have any |
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
4459
diff
changeset
|
21 |
* questions. |
1 | 22 |
* |
23 |
*/ |
|
24 |
||
7397 | 25 |
#ifndef SHARE_VM_SERVICES_MEMORYMANAGER_HPP |
26 |
#define SHARE_VM_SERVICES_MEMORYMANAGER_HPP |
|
27 |
||
48114
e6b643827037
8191858: Add missing includes in memoryManager.hpp
stefank
parents:
47216
diff
changeset
|
28 |
#include "gc/shared/gcCause.hpp" |
7397 | 29 |
#include "memory/allocation.hpp" |
49658 | 30 |
#include "oops/oop.hpp" |
48114
e6b643827037
8191858: Add missing includes in memoryManager.hpp
stefank
parents:
47216
diff
changeset
|
31 |
#include "oops/oopsHierarchy.hpp" |
e6b643827037
8191858: Add missing includes in memoryManager.hpp
stefank
parents:
47216
diff
changeset
|
32 |
#include "runtime/handles.hpp" |
7397 | 33 |
#include "runtime/timer.hpp" |
34 |
#include "services/memoryUsage.hpp" |
|
35 |
||
1 | 36 |
// A memory manager is responsible for managing one or more memory pools. |
37 |
// The garbage collector is one type of memory managers responsible |
|
38 |
// for reclaiming memory occupied by unreachable objects. A Java virtual |
|
39 |
// machine may have one or more memory managers. It may |
|
40 |
// add or remove memory managers during execution. |
|
41 |
// A memory pool can be managed by more than one memory managers. |
|
42 |
||
43 |
class MemoryPool; |
|
44 |
class GCMemoryManager; |
|
45 |
class OopClosure; |
|
46 |
||
13195 | 47 |
class MemoryManager : public CHeapObj<mtInternal> { |
1 | 48 |
private: |
49 |
enum { |
|
50 |
max_num_pools = 10 |
|
51 |
}; |
|
52 |
||
53 |
MemoryPool* _pools[max_num_pools]; |
|
54 |
int _num_pools; |
|
55 |
||
48168
cb5d2d4453d0
8191564: Refactor GC related servicability code into GC specific subclasses
rkennke
parents:
48114
diff
changeset
|
56 |
const char* _name; |
cb5d2d4453d0
8191564: Refactor GC related servicability code into GC specific subclasses
rkennke
parents:
48114
diff
changeset
|
57 |
|
1 | 58 |
protected: |
59 |
volatile instanceOop _memory_mgr_obj; |
|
60 |
||
61 |
public: |
|
48168
cb5d2d4453d0
8191564: Refactor GC related servicability code into GC specific subclasses
rkennke
parents:
48114
diff
changeset
|
62 |
MemoryManager(const char* name); |
1 | 63 |
|
64 |
int num_memory_pools() const { return _num_pools; } |
|
65 |
MemoryPool* get_memory_pool(int index) { |
|
66 |
assert(index >= 0 && index < _num_pools, "Invalid index"); |
|
67 |
return _pools[index]; |
|
68 |
} |
|
69 |
||
70 |
void add_pool(MemoryPool* pool); |
|
71 |
||
49658 | 72 |
bool is_manager(instanceHandle mh) { return oopDesc::equals(mh(), _memory_mgr_obj); } |
1 | 73 |
|
74 |
virtual instanceOop get_memory_manager_instance(TRAPS); |
|
75 |
virtual bool is_gc_memory_manager() { return false; } |
|
48168
cb5d2d4453d0
8191564: Refactor GC related servicability code into GC specific subclasses
rkennke
parents:
48114
diff
changeset
|
76 |
|
cb5d2d4453d0
8191564: Refactor GC related servicability code into GC specific subclasses
rkennke
parents:
48114
diff
changeset
|
77 |
const char* name() const { return _name; } |
1 | 78 |
|
79 |
// GC support |
|
80 |
void oops_do(OopClosure* f); |
|
81 |
||
82 |
// Static factory methods to get a memory manager of a specific type |
|
83 |
static MemoryManager* get_code_cache_memory_manager(); |
|
18444
8adb4bc92f18
8013590: NPG: Add a memory pool MXBean for Metaspace
ehelin
parents:
16453
diff
changeset
|
84 |
static MemoryManager* get_metaspace_memory_manager(); |
8adb4bc92f18
8013590: NPG: Add a memory pool MXBean for Metaspace
ehelin
parents:
16453
diff
changeset
|
85 |
}; |
8adb4bc92f18
8013590: NPG: Add a memory pool MXBean for Metaspace
ehelin
parents:
16453
diff
changeset
|
86 |
|
11591
854c0dff3844
7066129: GarbageCollectorMXBean#getLastGcInfo leaks native memory
dsamersoff
parents:
9623
diff
changeset
|
87 |
class GCStatInfo : public ResourceObj { |
1 | 88 |
private: |
89 |
size_t _index; |
|
90 |
jlong _start_time; |
|
91 |
jlong _end_time; |
|
92 |
||
93 |
// We keep memory usage of all memory pools |
|
94 |
MemoryUsage* _before_gc_usage_array; |
|
95 |
MemoryUsage* _after_gc_usage_array; |
|
96 |
int _usage_array_size; |
|
97 |
||
98 |
void set_gc_usage(int pool_index, MemoryUsage, bool before_gc); |
|
99 |
||
100 |
public: |
|
101 |
GCStatInfo(int num_pools); |
|
102 |
~GCStatInfo(); |
|
103 |
||
104 |
size_t gc_index() { return _index; } |
|
105 |
jlong start_time() { return _start_time; } |
|
106 |
jlong end_time() { return _end_time; } |
|
107 |
int usage_array_size() { return _usage_array_size; } |
|
108 |
MemoryUsage before_gc_usage_for_pool(int pool_index) { |
|
109 |
assert(pool_index >= 0 && pool_index < _usage_array_size, "Range checking"); |
|
110 |
return _before_gc_usage_array[pool_index]; |
|
111 |
} |
|
112 |
MemoryUsage after_gc_usage_for_pool(int pool_index) { |
|
113 |
assert(pool_index >= 0 && pool_index < _usage_array_size, "Range checking"); |
|
114 |
return _after_gc_usage_array[pool_index]; |
|
115 |
} |
|
116 |
||
6245
c37d2cf6de1a
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
5547
diff
changeset
|
117 |
MemoryUsage* before_gc_usage_array() { return _before_gc_usage_array; } |
c37d2cf6de1a
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
5547
diff
changeset
|
118 |
MemoryUsage* after_gc_usage_array() { return _after_gc_usage_array; } |
c37d2cf6de1a
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
5547
diff
changeset
|
119 |
|
1 | 120 |
void set_index(size_t index) { _index = index; } |
121 |
void set_start_time(jlong time) { _start_time = time; } |
|
122 |
void set_end_time(jlong time) { _end_time = time; } |
|
123 |
void set_before_gc_usage(int pool_index, MemoryUsage usage) { |
|
124 |
assert(pool_index >= 0 && pool_index < _usage_array_size, "Range checking"); |
|
125 |
set_gc_usage(pool_index, usage, true /* before gc */); |
|
126 |
} |
|
127 |
void set_after_gc_usage(int pool_index, MemoryUsage usage) { |
|
128 |
assert(pool_index >= 0 && pool_index < _usage_array_size, "Range checking"); |
|
129 |
set_gc_usage(pool_index, usage, false /* after gc */); |
|
130 |
} |
|
131 |
||
6245
c37d2cf6de1a
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
5547
diff
changeset
|
132 |
void clear(); |
1 | 133 |
}; |
134 |
||
135 |
class GCMemoryManager : public MemoryManager { |
|
136 |
private: |
|
137 |
// TODO: We should unify the GCCounter and GCMemoryManager statistic |
|
138 |
size_t _num_collections; |
|
139 |
elapsedTimer _accumulated_timer; |
|
140 |
GCStatInfo* _last_gc_stat; |
|
6245
c37d2cf6de1a
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
5547
diff
changeset
|
141 |
Mutex* _last_gc_lock; |
c37d2cf6de1a
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
5547
diff
changeset
|
142 |
GCStatInfo* _current_gc_stat; |
1 | 143 |
int _num_gc_threads; |
9623
151c0b638488
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
7397
diff
changeset
|
144 |
volatile bool _notification_enabled; |
48168
cb5d2d4453d0
8191564: Refactor GC related servicability code into GC specific subclasses
rkennke
parents:
48114
diff
changeset
|
145 |
const char* _gc_end_message; |
1 | 146 |
public: |
48168
cb5d2d4453d0
8191564: Refactor GC related servicability code into GC specific subclasses
rkennke
parents:
48114
diff
changeset
|
147 |
GCMemoryManager(const char* name, const char* gc_end_message); |
1 | 148 |
~GCMemoryManager(); |
149 |
||
150 |
void initialize_gc_stat_info(); |
|
151 |
||
152 |
bool is_gc_memory_manager() { return true; } |
|
153 |
jlong gc_time_ms() { return _accumulated_timer.milliseconds(); } |
|
154 |
size_t gc_count() { return _num_collections; } |
|
155 |
int num_gc_threads() { return _num_gc_threads; } |
|
156 |
void set_num_gc_threads(int count) { _num_gc_threads = count; } |
|
157 |
||
6245
c37d2cf6de1a
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
5547
diff
changeset
|
158 |
void gc_begin(bool recordGCBeginTime, bool recordPreGCUsage, |
c37d2cf6de1a
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
5547
diff
changeset
|
159 |
bool recordAccumulatedGCTime); |
c37d2cf6de1a
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
5547
diff
changeset
|
160 |
void gc_end(bool recordPostGCUsage, bool recordAccumulatedGCTime, |
9623
151c0b638488
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
7397
diff
changeset
|
161 |
bool recordGCEndTime, bool countCollection, GCCause::Cause cause); |
1 | 162 |
|
163 |
void reset_gc_stat() { _num_collections = 0; _accumulated_timer.reset(); } |
|
6245
c37d2cf6de1a
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
5547
diff
changeset
|
164 |
|
c37d2cf6de1a
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
5547
diff
changeset
|
165 |
// Copy out _last_gc_stat to the given destination, returning |
c37d2cf6de1a
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
5547
diff
changeset
|
166 |
// the collection count. Zero signifies no gc has taken place. |
c37d2cf6de1a
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
5547
diff
changeset
|
167 |
size_t get_last_gc_stat(GCStatInfo* dest); |
1 | 168 |
|
9623
151c0b638488
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
7397
diff
changeset
|
169 |
void set_notification_enabled(bool enabled) { _notification_enabled = enabled; } |
151c0b638488
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
7397
diff
changeset
|
170 |
bool is_notification_enabled() { return _notification_enabled; } |
1 | 171 |
}; |
172 |
||
7397 | 173 |
#endif // SHARE_VM_SERVICES_MEMORYMANAGER_HPP |