Mercurial > hg > graal-jvmci-8
comparison src/share/vm/gc_implementation/shared/hSpaceCounters.hpp @ 3289:b52782ae3880
6946417: G1: Java VisualVM does not support G1 properly.
Summary: Added counters for jstat
Reviewed-by: tonyp, jwilhelm, stefank, ysr, johnc
author | jmasa |
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date | Thu, 21 Apr 2011 10:23:44 -0700 |
parents | |
children | d2a62e0f25eb |
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3288:c0dcda80820f | 3289:b52782ae3880 |
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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_SHARED_HSPACECOUNTERS_HPP | |
26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_HSPACECOUNTERS_HPP | |
27 | |
28 #ifndef SERIALGC | |
29 #include "gc_implementation/shared/generationCounters.hpp" | |
30 #include "memory/generation.hpp" | |
31 #include "runtime/perfData.hpp" | |
32 #endif | |
33 | |
34 // A HSpaceCounter is a holder class for performance counters | |
35 // that track a collections (logical spaces) in a heap; | |
36 | |
37 class HeapSpaceUsedHelper; | |
38 class G1SpaceMonitoringSupport; | |
39 | |
40 class HSpaceCounters: public CHeapObj { | |
41 friend class VMStructs; | |
42 | |
43 private: | |
44 PerfVariable* _capacity; | |
45 PerfVariable* _used; | |
46 | |
47 // Constant PerfData types don't need to retain a reference. | |
48 // However, it's a good idea to document them here. | |
49 | |
50 char* _name_space; | |
51 | |
52 public: | |
53 | |
54 HSpaceCounters(const char* name, int ordinal, size_t max_size, | |
55 size_t initial_capacity, GenerationCounters* gc); | |
56 | |
57 ~HSpaceCounters() { | |
58 if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space); | |
59 } | |
60 | |
61 inline void update_capacity(size_t v) { | |
62 _capacity->set_value(v); | |
63 } | |
64 | |
65 inline void update_used(size_t v) { | |
66 _used->set_value(v); | |
67 } | |
68 | |
69 debug_only( | |
70 // for security reasons, we do not allow arbitrary reads from | |
71 // the counters as they may live in shared memory. | |
72 jlong used() { | |
73 return _used->get_value(); | |
74 } | |
75 jlong capacity() { | |
76 return _used->get_value(); | |
77 } | |
78 ) | |
79 | |
80 inline void update_all(size_t capacity, size_t used) { | |
81 update_capacity(capacity); | |
82 update_used(used); | |
83 } | |
84 | |
85 const char* name_space() const { return _name_space; } | |
86 }; | |
87 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_HSPACECOUNTERS_HPP |