jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/g1/g1MarkSweep.hpp@29e7d79232b9

6819065: G1: eliminate high serial card table clearing time
Reviewed-by: iveresov, tonyp

     1 /*

     2  * Copyright 2001-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    25 class ReferenceProcessor;

    27 // G1MarkSweep takes care of global mark-compact garbage collection for a

    28 // G1CollectedHeap using a four-phase pointer forwarding algorithm.  All

    29 // generations are assumed to support marking; those that can also support

    30 // compaction.

    31 //

    32 // Class unloading will only occur when a full gc is invoked.

    35 class G1MarkSweep : AllStatic {

    36   friend class VM_G1MarkSweep;

    37   friend class Scavenge;

    39  public:

    41   static void invoke_at_safepoint(ReferenceProcessor* rp,

    42                                   bool clear_all_softrefs);

    44  private:

    46   // Mark live objects

    47   static void mark_sweep_phase1(bool& marked_for_deopt,

    48                                 bool clear_all_softrefs);

    49   // Calculate new addresses

    50   static void mark_sweep_phase2();

    51   // Update pointers

    52   static void mark_sweep_phase3();

    53   // Move objects to new positions

    54   static void mark_sweep_phase4();

    56   static void allocate_stacks();

    57 };

Mercurial > jdk8-mips64-public > hotspot / file revision