1 /*
   2  * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
   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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
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  24 
  25 #ifndef SHARE_GC_G1_G1HETEROGENEOUSCOLLECTORPOLICY_HPP
  26 #define SHARE_GC_G1_G1HETEROGENEOUSCOLLECTORPOLICY_HPP
  27 
  28 #include "gc/g1/g1CollectorPolicy.hpp"
  29 #include "gc/g1/g1HeterogeneousHeapYoungGenSizer.hpp"
  30 
  31 class G1HeterogeneousCollectorPolicy : public G1CollectorPolicy {
  32 private:
  33   // Max fraction of dram to use for young generation when MaxRAMFraction and
  34   // MaxRAMPercentage are not specified on commandline.
  35   static const double MaxRamFractionForYoung;
  36   static size_t MaxMemoryForYoung;
  37 
  38 protected:
  39   virtual void initialize_flags();
  40 
  41 public:
  42   G1HeterogeneousCollectorPolicy() {}
  43   virtual size_t heap_reserved_size_bytes() const;
  44   virtual bool is_hetero_heap() const;
  45   static size_t reasonable_max_memory_for_young();
  46 };
  47 
  48 #endif // SHARE_GC_G1_G1HETEROGENEOUSCOLLECTORPOLICY_HPP