1 /*
   2 * Copyright (c) 2014, 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 import com.oracle.java.testlibrary.JDKToolFinder;
  25 import com.oracle.java.testlibrary.OutputAnalyzer;
  26 import com.oracle.java.testlibrary.ProcessTools;
  27 import com.oracle.java.testlibrary.Platform;
  28 
  29 /*
  30  * @test TestCardTablePageCommits
  31  * @key gc
  32  * @bug 8059066
  33  * @summary Tests that the card table does not commit the same page twice
  34  * @library /testlibrary
  35  * @run driver TestCardTablePageCommits
  36  */
  37 public class TestCardTablePageCommits {
  38     public static void main(String args[]) throws Exception {
  39         // The test is run with a small heap to make sure all pages in the card
  40         // table gets committed. Need 8 MB heap to trigger the bug on SPARC
  41         // because of 8kB pages, assume 4 KB pages for all other CPUs.
  42         String Xmx = Platform.isSparc() ? "-Xmx8m" : "-Xmx4m";
  43 
  44         String[] opts = {Xmx, "-XX:NativeMemoryTracking=detail", "-XX:+UseParallelGC", "-version"};
  45         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(opts);
  46         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  47         output.shouldHaveExitValue(0);
  48     }
  49 }