author | kvn |
Thu, 27 May 2010 18:01:56 -0700 | |
changeset 5694 | 1e0532a6abff |
parent 670 | ddf3e9583f2f |
child 5547 | f4b087cbb361 |
permissions | -rw-r--r-- |
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/* |
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* Copyright 2001-2008 Sun Microsystems, Inc. All Rights Reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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* |
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*/ |
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||
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// There is a nice batch of tested generation sizing code in |
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// TwoGenerationCollectorPolicy. Lets reuse it! |
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class GenerationSizer : public TwoGenerationCollectorPolicy { |
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public: |
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GenerationSizer() { |
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// Partial init only! |
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initialize_flags(); |
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initialize_size_info(); |
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} |
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void initialize_flags() { |
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// Do basic sizing work |
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this->TwoGenerationCollectorPolicy::initialize_flags(); |
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// If the user hasn't explicitly set the number of worker |
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// threads, set the count. |
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ba55c7f3fd45
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
1
diff
changeset
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assert(UseSerialGC || |
ba55c7f3fd45
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
1
diff
changeset
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!FLAG_IS_DEFAULT(ParallelGCThreads) || |
ba55c7f3fd45
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
1
diff
changeset
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(ParallelGCThreads > 0), |
ba55c7f3fd45
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
1
diff
changeset
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"ParallelGCThreads should be set before flag initialization"); |
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// The survivor ratio's are calculated "raw", unlike the |
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// default gc, which adds 2 to the ratio value. We need to |
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// make sure the values are valid before using them. |
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if (MinSurvivorRatio < 3) { |
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MinSurvivorRatio = 3; |
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} |
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if (InitialSurvivorRatio < 3) { |
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InitialSurvivorRatio = 3; |
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} |
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} |
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size_t min_young_gen_size() { return _min_gen0_size; } |
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size_t young_gen_size() { return _initial_gen0_size; } |
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size_t max_young_gen_size() { return _max_gen0_size; } |
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size_t min_old_gen_size() { return _min_gen1_size; } |
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size_t old_gen_size() { return _initial_gen1_size; } |
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size_t max_old_gen_size() { return _max_gen1_size; } |
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size_t perm_gen_size() { return PermSize; } |
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size_t max_perm_gen_size() { return MaxPermSize; } |
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}; |