src/hotspot/share/gc/epsilon/epsilonCollectorPolicy.hpp
author shade
Tue, 12 Jun 2018 15:03:00 +0200
changeset 50523 7b7c75d87f9b
child 53244 9807daeb47c4
permissions -rw-r--r--
8204180: Implementation: JEP 318: Epsilon, A No-Op Garbage Collector Summary: Introduce Epsilon GC Reviewed-by: rkennke, ihse, pliden, eosterlund, lmesnik, jgeorge, stefank

/*
 * Copyright (c) 2017, 2018, Red Hat, Inc. All rights reserved.
 *
 * 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).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

#ifndef SHARE_VM_GC_EPSILON_COLLECTORPOLICY_HPP
#define SHARE_VM_GC_EPSILON_COLLECTORPOLICY_HPP

#include "gc/shared/collectorPolicy.hpp"

class EpsilonCollectorPolicy: public CollectorPolicy {
protected:
  virtual void initialize_alignments() {
    size_t page_size = UseLargePages ? os::large_page_size() : os::vm_page_size();
    size_t align = MAX2((size_t)os::vm_allocation_granularity(), page_size);
    _space_alignment = align;
    _heap_alignment  = align;
  }

public:
  EpsilonCollectorPolicy() : CollectorPolicy() {};
};

#endif // SHARE_VM_GC_EPSILON_COLLECTORPOLICY_HPP