Mercurial > hg > graal-jvmci-8
annotate src/share/vm/gc_implementation/parallelScavenge/generationSizer.hpp @ 628:7bb995fbd3c0
Merge
author | trims |
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date | Thu, 12 Mar 2009 18:16:36 -0700 |
parents | d1605aabd0a1 |
children | c18cbe5936b8 |
rev | line source |
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0 | 1 /* |
196 | 2 * Copyright 2001-2008 Sun Microsystems, Inc. All Rights Reserved. |
0 | 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 // There is a nice batch of tested generation sizing code in | |
26 // TwoGenerationCollectorPolicy. Lets reuse it! | |
27 | |
28 class GenerationSizer : public TwoGenerationCollectorPolicy { | |
29 public: | |
30 GenerationSizer() { | |
31 // Partial init only! | |
32 initialize_flags(); | |
33 initialize_size_info(); | |
34 } | |
35 | |
36 void initialize_flags() { | |
37 // Do basic sizing work | |
38 this->TwoGenerationCollectorPolicy::initialize_flags(); | |
39 | |
40 // If the user hasn't explicitly set the number of worker | |
41 // threads, set the count. | |
10
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42 assert(UseSerialGC || |
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43 !FLAG_IS_DEFAULT(ParallelGCThreads) || |
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44 (ParallelGCThreads > 0), |
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45 "ParallelGCThreads should be set before flag initialization"); |
0 | 46 |
47 // The survivor ratio's are calculated "raw", unlike the | |
48 // default gc, which adds 2 to the ratio value. We need to | |
49 // make sure the values are valid before using them. | |
50 if (MinSurvivorRatio < 3) { | |
51 MinSurvivorRatio = 3; | |
52 } | |
53 | |
54 if (InitialSurvivorRatio < 3) { | |
55 InitialSurvivorRatio = 3; | |
56 } | |
57 } | |
58 | |
59 size_t min_young_gen_size() { return _min_gen0_size; } | |
60 size_t young_gen_size() { return _initial_gen0_size; } | |
61 size_t max_young_gen_size() { return _max_gen0_size; } | |
62 | |
63 size_t min_old_gen_size() { return _min_gen1_size; } | |
64 size_t old_gen_size() { return _initial_gen1_size; } | |
65 size_t max_old_gen_size() { return _max_gen1_size; } | |
66 | |
67 size_t perm_gen_size() { return PermSize; } | |
68 size_t max_perm_gen_size() { return MaxPermSize; } | |
69 }; |