src/share/vm/gc_implementation/concurrentMarkSweep/cmsCollectorPolicy.hpp

Fri, 01 Nov 2013 17:09:38 +0100

author
jwilhelm
date
Fri, 01 Nov 2013 17:09:38 +0100
changeset 6085
8f07aa079343
parent 2314
f95d63e2154a
child 6198
55fb97c4c58d
permissions
-rw-r--r--

8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
7057939: jmap shows MaxNewSize=4GB when Java is using parallel collector
Summary: Major cleanup of the collectorpolicy classes
Reviewed-by: tschatzl, jcoomes

     1 /*
     2  * Copyright (c) 2007, 2010, 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
    21  * questions.
    22  *
    23  */
    25 #ifndef SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSCOLLECTORPOLICY_HPP
    26 #define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSCOLLECTORPOLICY_HPP
    28 #include "memory/collectorPolicy.hpp"
    30 class ConcurrentMarkSweepPolicy : public TwoGenerationCollectorPolicy {
    31  protected:
    32   void initialize_alignments();
    33   void initialize_generations();
    35  public:
    36   ConcurrentMarkSweepPolicy() {}
    38   ConcurrentMarkSweepPolicy* as_concurrent_mark_sweep_policy() { return this; }
    40   void initialize_gc_policy_counters();
    42   virtual void initialize_size_policy(size_t init_eden_size,
    43                                       size_t init_promo_size,
    44                                       size_t init_survivor_size);
    46   // Returns true if the incremental mode is enabled.
    47   virtual bool has_soft_ended_eden();
    48 };
    50 class ASConcurrentMarkSweepPolicy : public ConcurrentMarkSweepPolicy {
    51  public:
    53   // Initialize the jstat counters.  This method requires a
    54   // size policy.  The size policy is expected to be created
    55   // after the generations are fully initialized so the
    56   // initialization of the counters need to be done post
    57   // the initialization of the generations.
    58   void initialize_gc_policy_counters();
    60   virtual CollectorPolicy::Name kind() {
    61     return CollectorPolicy::ASConcurrentMarkSweepPolicyKind;
    62   }
    63 };
    65 #endif // SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSCOLLECTORPOLICY_HPP

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