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 }