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 }