hotspot/test/gc/TestCardTablePageCommits.java
changeset 28026 3694b71eef6c
child 29678 dd2f3932c21e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/gc/TestCardTablePageCommits.java	Tue Dec 02 09:53:30 2014 +0100
@@ -0,0 +1,49 @@
+/*
+* Copyright (c) 2014, 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.
+*/
+
+import com.oracle.java.testlibrary.JDKToolFinder;
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.ProcessTools;
+import com.oracle.java.testlibrary.Platform;
+
+/*
+ * @test TestCardTablePageCommits
+ * @key gc
+ * @bug 8059066
+ * @summary Tests that the card table does not commit the same page twice
+ * @library /testlibrary
+ * @run driver TestCardTablePageCommits
+ */
+public class TestCardTablePageCommits {
+    public static void 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 = Platform.isSparc() ? "-Xmx8m" : "-Xmx4m";
+
+        String[] opts = {Xmx, "-XX:NativeMemoryTracking=detail", "-XX:+UseParallelGC", "-version"};
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(opts);
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+        output.shouldHaveExitValue(0);
+    }
+}