Quelle TestCardTablePageCommits.java
Sprache: JAVA
/* * Copyright (c) 2014, 2022, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions.
*/
/* * @test TestCardTablePageCommits * @bug 8059066 * @summary Tests that the card table does not commit the same page twice * @requires vm.gc.Parallel * @library /test/lib * @modules java.base/jdk.internal.misc * @run driver gc.TestCardTablePageCommits
*/ publicclass TestCardTablePageCommits { publicstaticvoid main(String args[]) throws Exception { // The test is run with a small heap to make sure all pages in the card // table gets committed. Need 8 MB heap to trigger the bug on SPARC // because of 8kB pages, assume 4 KB pages for all other CPUs.
String Xmx = "-Xmx4m";
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