src/hotspot/share/gc/cms/allocationStats.cpp
changeset 59193 b83adf4bd4ee
parent 59192 a56b7a304bac
parent 59142 c4be5e03aff7
child 59194 10385df5d986
equal deleted inserted replaced
59192:a56b7a304bac 59193:b83adf4bd4ee
     1 /*
       
     2  * Copyright (c) 2005, 2015, 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  */
       
    24 
       
    25 #include "precompiled.hpp"
       
    26 #include "gc/cms/allocationStats.hpp"
       
    27 #include "utilities/macros.hpp"
       
    28 #include "utilities/ostream.hpp"
       
    29 
       
    30 // Technically this should be derived from machine speed, and
       
    31 // ideally it would be dynamically adjusted.
       
    32 float AllocationStats::_threshold = ((float)CMS_SweepTimerThresholdMillis)/1000;
       
    33 
       
    34 void AllocationStats::initialize(bool split_birth)   {
       
    35   AdaptivePaddedAverage* dummy =
       
    36     new (&_demand_rate_estimate) AdaptivePaddedAverage(CMS_FLSWeight,
       
    37                                                        CMS_FLSPadding);
       
    38   _desired = 0;
       
    39   _coal_desired = 0;
       
    40   _surplus = 0;
       
    41   _bfr_surp = 0;
       
    42   _prev_sweep = 0;
       
    43   _before_sweep = 0;
       
    44   _coal_births = 0;
       
    45   _coal_deaths = 0;
       
    46   _split_births = (split_birth ? 1 : 0);
       
    47   _split_deaths = 0;
       
    48   _returned_bytes = 0;
       
    49 }