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