jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/shared/gcStats.cpp@aaf61e68b255

6818524: G1: use ergonomic resizing of PLABs
Summary: Employ PLABStats instances to record information about survivor and old PLABs, and use the recorded stats to adjust the sizes of survivor and old PLABS.
Reviewed-by: johnc, ysr
Contributed-by: Brandon Mitchell <brandon@twitter.com>

     1 /*

     2  * Copyright (c) 2003, 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

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    22  *

    23  */

    25 #include "precompiled.hpp"

    26 #include "gc_implementation/shared/gcStats.hpp"

    27 #include "gc_implementation/shared/gcUtil.hpp"

    29 GCStats::GCStats() {

    30     _avg_promoted       = new AdaptivePaddedNoZeroDevAverage(

    31                                                   AdaptiveSizePolicyWeight,

    32                                                   PromotedPadding);

    33 }

    35 CMSGCStats::CMSGCStats() {

    36     _avg_promoted       = new AdaptivePaddedNoZeroDevAverage(

    37                                                   CMSExpAvgFactor,

    38                                                   PromotedPadding);

    39 }

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

src/share/vm/gc_implementation/shared/gcStats.cpp@aaf61e68b255

src/share/vm/gc_implementation/shared/gcStats.cpp