1 /*
   2  * Copyright (c) 2013, 2015, 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 /*
  25  * @test
  26  * @key nmt jcmd
  27  * @library /test/lib
  28  * @modules java.base/jdk.internal.misc
  29  *          java.management
  30  * @build sun.hotspot.WhiteBox
  31  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  32  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  33  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ThreadedVirtualAllocTestType
  34  */
  35 
  36 import jdk.test.lib.process.ProcessTools;
  37 import jdk.test.lib.process.OutputAnalyzer;
  38 import jdk.test.lib.JDKToolFinder;
  39 import sun.hotspot.WhiteBox;
  40 
  41 public class ThreadedVirtualAllocTestType {
  42   public static long addr;
  43   public static final WhiteBox wb = WhiteBox.getWhiteBox();
  44   public static final long commitSize = 128 * 1024;
  45   public static final long reserveSize = 512 * 1024;
  46 
  47   public static void main(String args[]) throws Exception {
  48     OutputAnalyzer output;
  49 
  50     String pid = Long.toString(ProcessTools.getProcessId());
  51     ProcessBuilder pb = new ProcessBuilder();
  52 
  53     Thread reserveThread = new Thread() {
  54       public void run() {
  55         addr = wb.NMTReserveMemory(reserveSize);
  56       }
  57     };
  58     reserveThread.start();
  59     reserveThread.join();
  60 
  61     pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "detail"});
  62     output = new OutputAnalyzer(pb.start());
  63     output.shouldContain("Test (reserved=512KB, committed=0KB)");
  64     output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved 512KB for Test");
  65 
  66     Thread commitThread = new Thread() {
  67       public void run() {
  68         wb.NMTCommitMemory(addr, commitSize);
  69       }
  70     };
  71     commitThread.start();
  72     commitThread.join();
  73 
  74     output = new OutputAnalyzer(pb.start());
  75     output.shouldContain("Test (reserved=512KB, committed=128KB)");
  76     output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed 128KB");
  77 
  78     Thread uncommitThread = new Thread() {
  79       public void run() {
  80         wb.NMTUncommitMemory(addr, commitSize);
  81       }
  82     };
  83     uncommitThread.start();
  84     uncommitThread.join();
  85 
  86     output = new OutputAnalyzer(pb.start());
  87     output.shouldContain("Test (reserved=512KB, committed=0KB)");
  88     output.shouldNotMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed");
  89 
  90     Thread releaseThread = new Thread() {
  91       public void run() {
  92         wb.NMTReleaseMemory(addr, reserveSize);
  93       }
  94     };
  95     releaseThread.start();
  96     releaseThread.join();
  97 
  98     output = new OutputAnalyzer(pb.start());
  99     output.shouldNotContain("Test (reserved=");
 100     output.shouldNotContain("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved");
 101   }
 102 
 103 }