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