src/share/vm/shark/sharkInvariants.cpp

Tue, 18 Jun 2013 12:31:07 -0700

author
johnc
date
Tue, 18 Jun 2013 12:31:07 -0700
changeset 5277
01522ca68fc7
parent 2314
f95d63e2154a
child 6876
710a3c8b516e
permissions
-rw-r--r--

8015237: Parallelize string table scanning during strong root processing
Summary: Parallelize the scanning of the intern string table by having each GC worker claim a given number of buckets. Changes were also reviewed by Per Liden <per.liden@oracle.com>.
Reviewed-by: tschatzl, stefank, twisti

twisti@2047 1 /*
stefank@2314 2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
twisti@2047 3 * Copyright 2008, 2009 Red Hat, Inc.
twisti@2047 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
twisti@2047 5 *
twisti@2047 6 * This code is free software; you can redistribute it and/or modify it
twisti@2047 7 * under the terms of the GNU General Public License version 2 only, as
twisti@2047 8 * published by the Free Software Foundation.
twisti@2047 9 *
twisti@2047 10 * This code is distributed in the hope that it will be useful, but WITHOUT
twisti@2047 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
twisti@2047 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
twisti@2047 13 * version 2 for more details (a copy is included in the LICENSE file that
twisti@2047 14 * accompanied this code).
twisti@2047 15 *
twisti@2047 16 * You should have received a copy of the GNU General Public License version
twisti@2047 17 * 2 along with this work; if not, write to the Free Software Foundation,
twisti@2047 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
twisti@2047 19 *
twisti@2047 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
twisti@2047 21 * or visit www.oracle.com if you need additional information or have any
twisti@2047 22 * questions.
twisti@2047 23 *
twisti@2047 24 */
twisti@2047 25
stefank@2314 26 #include "precompiled.hpp"
stefank@2314 27 #include "shark/sharkInvariants.hpp"
twisti@2047 28
twisti@2047 29 int SharkTargetInvariants::count_monitors() {
twisti@2047 30 int result = 0;
twisti@2047 31 if (is_synchronized() || target()->has_monitor_bytecodes()) {
twisti@2047 32 for (int i = 0; i < flow()->block_count(); i++) {
twisti@2047 33 result = MAX2(result, flow()->pre_order_at(i)->monitor_count());
twisti@2047 34 }
twisti@2047 35 }
twisti@2047 36 return result;
twisti@2047 37 }

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