Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/parallelScavenge/generationSizer.hpp @ 8090:2af22eb04623
Merge
author | vladidan |
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date | Thu, 21 Feb 2013 09:08:04 -0800 |
parents | da91efe96a93 |
children | 9e11762cee52 |
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0 | 1 /* |
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2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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12 * version 2 for more details (a copy is included in the LICENSE file that | |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP |
26 #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP | |
27 | |
28 #include "memory/collectorPolicy.hpp" | |
29 | |
0 | 30 // There is a nice batch of tested generation sizing code in |
31 // TwoGenerationCollectorPolicy. Lets reuse it! | |
32 | |
33 class GenerationSizer : public TwoGenerationCollectorPolicy { | |
34 public: | |
35 GenerationSizer() { | |
36 // Partial init only! | |
37 initialize_flags(); | |
38 initialize_size_info(); | |
39 } | |
40 | |
41 void initialize_flags() { | |
42 // Do basic sizing work | |
43 this->TwoGenerationCollectorPolicy::initialize_flags(); | |
44 | |
45 // If the user hasn't explicitly set the number of worker | |
46 // threads, set the count. | |
10
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47 assert(UseSerialGC || |
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48 !FLAG_IS_DEFAULT(ParallelGCThreads) || |
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49 (ParallelGCThreads > 0), |
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50 "ParallelGCThreads should be set before flag initialization"); |
0 | 51 |
52 // The survivor ratio's are calculated "raw", unlike the | |
53 // default gc, which adds 2 to the ratio value. We need to | |
54 // make sure the values are valid before using them. | |
55 if (MinSurvivorRatio < 3) { | |
56 MinSurvivorRatio = 3; | |
57 } | |
58 | |
59 if (InitialSurvivorRatio < 3) { | |
60 InitialSurvivorRatio = 3; | |
61 } | |
62 } | |
63 | |
64 size_t min_young_gen_size() { return _min_gen0_size; } | |
65 size_t young_gen_size() { return _initial_gen0_size; } | |
66 size_t max_young_gen_size() { return _max_gen0_size; } | |
67 | |
68 size_t min_old_gen_size() { return _min_gen1_size; } | |
69 size_t old_gen_size() { return _initial_gen1_size; } | |
70 size_t max_old_gen_size() { return _max_gen1_size; } | |
71 | |
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72 size_t metaspace_size() { return MetaspaceSize; } |
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73 size_t max_metaspace_size() { return MaxMetaspaceSize; } |
0 | 74 }; |
1972 | 75 |
76 #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP |