Mercurial > hg > truffle
comparison src/share/vm/gc_implementation/shared/gcPolicyCounters.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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1 /* | |
2 * Copyright 2002-2005 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 // GCPolicyCounters is a holder class for performance counters | |
26 // that track a generation | |
27 | |
28 class GCPolicyCounters: public CHeapObj { | |
29 friend class VMStructs; | |
30 | |
31 private: | |
32 | |
33 // Constant PerfData types don't need to retain a reference. | |
34 // However, it's a good idea to document them here. | |
35 // PerfStringConstant* _name; | |
36 // PerfStringConstant* _collector_size; | |
37 // PerfStringConstant* _generation_size; | |
38 | |
39 PerfVariable* _tenuring_threshold; | |
40 PerfVariable* _desired_survivor_size; | |
41 | |
42 const char* _name_space; | |
43 | |
44 public: | |
45 | |
46 enum Name { | |
47 NONE, | |
48 GCPolicyCountersKind, | |
49 GCAdaptivePolicyCountersKind, | |
50 PSGCAdaptivePolicyCountersKind, | |
51 CMSGCAdaptivePolicyCountersKind | |
52 }; | |
53 | |
54 GCPolicyCounters(const char* name, int collectors, int generations); | |
55 | |
56 inline PerfVariable* tenuring_threshold() const { | |
57 return _tenuring_threshold; | |
58 } | |
59 | |
60 inline PerfVariable* desired_survivor_size() const { | |
61 return _desired_survivor_size; | |
62 } | |
63 | |
64 const char* name_space() const { return _name_space; } | |
65 | |
66 virtual void update_counters() {} | |
67 | |
68 virtual GCPolicyCounters::Name kind() const { | |
69 return GCPolicyCounters::GCPolicyCountersKind; | |
70 } | |
71 }; |