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.
32float AllocationStats::_threshold = ((float)CMS_SweepTimerThresholdMillis)/1000;
33
34void 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}
50