TestLargePageSizeInBytes.java revision 7064:cde40424bcd4 
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
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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
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22 */
23
24/* @test TestLargePageSizeInBytes
25 * @summary Tests that the flag -XX:LargePageSizeInBytes does not cause warnings on Solaris
26 * @bug 8049536
27 * @library /testlibrary
28 * @run driver TestLargePageSizeInBytes
29 */
30
31import com.oracle.java.testlibrary.OutputAnalyzer;
32import com.oracle.java.testlibrary.Platform;
33import com.oracle.java.testlibrary.ProcessTools;
34
35public class TestLargePageSizeInBytes {
36    private static long M = 1024L * 1024L;
37    private static long G = 1024L * M;
38
39    public static void main(String[] args) throws Exception {
40        if (!Platform.isSolaris()) {
41            // We only use the syscall mencntl on Solaris
42            return;
43        }
44
45        testLargePageSizeInBytes(4 * M);
46        testLargePageSizeInBytes(256 * M);
47        testLargePageSizeInBytes(512 * M);
48        testLargePageSizeInBytes(2 * G);
49    }
50
51    private static void testLargePageSizeInBytes(long size) throws Exception {
52        ProcessBuilder pb =
53            ProcessTools.createJavaProcessBuilder("-XX:+UseLargePages",
54                                                  "-XX:LargePageSizeInBytes=" + size,
55                                                  "-version");
56
57        OutputAnalyzer out = new OutputAnalyzer(pb.start());
58        out.shouldNotContain("Attempt to use MPSS failed.");
59        out.shouldHaveExitValue(0);
60    }
61}
62