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

Sat, 27 Sep 2008 00:33:13 -0700

author
iveresov
date
Sat, 27 Sep 2008 00:33:13 -0700
changeset 808
06df86c2ec37
parent 435
a61af66fc99e
child 1907
c18cbe5936b8
permissions
-rw-r--r--

6740923: NUMA allocator: Ensure the progress of adaptive chunk resizing
Summary: Treat a chuck where the allocation has failed as fully used.
Reviewed-by: ysr

     1 /*
     2  * Copyright 2003-2006 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 GCStats : public CHeapObj {
    26  protected:
    27   // Avg amount promoted; used for avoiding promotion undo
    28   // This class does not update deviations if the sample is zero.
    29   AdaptivePaddedNoZeroDevAverage*   _avg_promoted;
    31  public:
    32   GCStats();
    34   enum Name {
    35     GCStatsKind,
    36     CMSGCStatsKind
    37   };
    39   virtual Name kind() {
    40     return GCStatsKind;
    41   }
    43   AdaptivePaddedNoZeroDevAverage*  avg_promoted() const { return _avg_promoted; }
    45   // Average in bytes
    46   size_t average_promoted_in_bytes() const {
    47     return (size_t)_avg_promoted->average();
    48   }
    50   // Padded average in bytes
    51   size_t padded_average_promoted_in_bytes() const {
    52     return (size_t)_avg_promoted->padded_average();
    53   }
    54 };
    56 class CMSGCStats : public GCStats {
    57  public:
    58   CMSGCStats();
    60   virtual Name kind() {
    61     return CMSGCStatsKind;
    62   }
    63 };

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