hotspot/src/share/vm/gc_implementation/parallelScavenge/generationSizer.hpp
author jmasa
Fri, 01 Aug 2014 15:40:12 -0700
changeset 25905 04a3d83cc752
parent 24353 148147d21135
permissions -rw-r--r--
8031323: Optionally align objects copied to survivor spaces Reviewed-by: brutisso, tschatzl

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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#ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP
#define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP

#include "memory/collectorPolicy.hpp"

// There is a nice batch of tested generation sizing code in
// GenCollectorPolicy. Lets reuse it!

class GenerationSizer : public GenCollectorPolicy {
 private:

  void trace_gen_sizes(const char* const str);

  // The alignment used for boundary between young gen and old gen
  static size_t default_gen_alignment() { return 64 * K * HeapWordSize; }

 protected:

  void initialize_alignments();
  void initialize_flags();
  void initialize_size_info();
};
#endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP