duke@435: /*
coleenp@4037:  * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP
stefank@2314: #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP
stefank@2314: 
stefank@2314: #include "memory/collectorPolicy.hpp"
stefank@2314: 
duke@435: // There is a nice batch of tested generation sizing code in
duke@435: // TwoGenerationCollectorPolicy. Lets reuse it!
duke@435: 
duke@435: class GenerationSizer : public TwoGenerationCollectorPolicy {
duke@435:  public:
duke@435:   GenerationSizer() {
duke@435:     // Partial init only!
duke@435:     initialize_flags();
duke@435:     initialize_size_info();
duke@435:   }
duke@435: 
duke@435:   void initialize_flags() {
duke@435:     // Do basic sizing work
duke@435:     this->TwoGenerationCollectorPolicy::initialize_flags();
duke@435: 
duke@435:     // If the user hasn't explicitly set the number of worker
duke@435:     // threads, set the count.
jmasa@445:     assert(UseSerialGC ||
jmasa@445:            !FLAG_IS_DEFAULT(ParallelGCThreads) ||
jmasa@445:            (ParallelGCThreads > 0),
jmasa@445:            "ParallelGCThreads should be set before flag initialization");
duke@435: 
duke@435:     // The survivor ratio's are calculated "raw", unlike the
duke@435:     // default gc, which adds 2 to the ratio value. We need to
duke@435:     // make sure the values are valid before using them.
duke@435:     if (MinSurvivorRatio < 3) {
duke@435:       MinSurvivorRatio = 3;
duke@435:     }
duke@435: 
duke@435:     if (InitialSurvivorRatio < 3) {
duke@435:       InitialSurvivorRatio = 3;
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   size_t min_young_gen_size() { return _min_gen0_size; }
duke@435:   size_t young_gen_size()     { return _initial_gen0_size; }
duke@435:   size_t max_young_gen_size() { return _max_gen0_size; }
duke@435: 
duke@435:   size_t min_old_gen_size()   { return _min_gen1_size; }
duke@435:   size_t old_gen_size()       { return _initial_gen1_size; }
duke@435:   size_t max_old_gen_size()   { return _max_gen1_size; }
duke@435: 
coleenp@4037:   size_t metaspace_size()      { return MetaspaceSize; }
coleenp@4037:   size_t max_metaspace_size()  { return MaxMetaspaceSize; }
duke@435: };
stefank@2314: 
stefank@2314: #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP