1 /* 2 * Copyright (c) 2013, 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 /* 25 * @test 26 * @key nmt jcmd 27 * @library /testlibrary /testlibrary/whitebox 28 * @build ThreadedVirtualAllocTestType 29 * @run main ClassFileInstaller sun.hotspot.WhiteBox 30 * sun.hotspot.WhiteBox$WhiteBoxPermission 31 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ThreadedVirtualAllocTestType 32 */ 33 34 import com.oracle.java.testlibrary.*; 35 import sun.hotspot.WhiteBox; 36 37 public class ThreadedVirtualAllocTestType { 38 public static long addr; 39 public static final WhiteBox wb = WhiteBox.getWhiteBox(); 40 public static final long commitSize = 128 * 1024; 41 public static final long reserveSize = 512 * 1024; 42 43 public static void main(String args[]) throws Exception { 44 OutputAnalyzer output; 45 46 String pid = Integer.toString(ProcessTools.getProcessId()); 47 ProcessBuilder pb = new ProcessBuilder(); 48 49 boolean has_nmt_detail = wb.NMTIsDetailSupported(); 50 if (has_nmt_detail) { 51 System.out.println("NMT detail support detected."); 52 } else { 53 System.out.println("NMT detail support not detected."); 54 } 55 56 Thread reserveThread = new Thread() { 57 public void run() { 58 addr = wb.NMTReserveMemory(reserveSize); 59 } 60 }; 61 reserveThread.start(); 62 reserveThread.join(); 63 64 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "detail"}); 65 output = new OutputAnalyzer(pb.start()); 66 output.shouldContain("Test (reserved=512KB, committed=0KB)"); 67 if (has_nmt_detail) { 68 output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved 512KB for Test"); 69 } 70 71 Thread commitThread = new Thread() { 72 public void run() { 73 wb.NMTCommitMemory(addr, commitSize); 74 } 75 }; 76 commitThread.start(); 77 commitThread.join(); 78 79 output = new OutputAnalyzer(pb.start()); 80 output.shouldContain("Test (reserved=512KB, committed=128KB)"); 81 if (has_nmt_detail) { 82 output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed 128KB"); 83 } 84 85 Thread uncommitThread = new Thread() { 86 public void run() { 87 wb.NMTUncommitMemory(addr, commitSize); 88 } 89 }; 90 uncommitThread.start(); 91 uncommitThread.join(); 92 93 output = new OutputAnalyzer(pb.start()); 94 output.shouldContain("Test (reserved=512KB, committed=0KB)"); 95 output.shouldNotMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed"); 96 97 Thread releaseThread = new Thread() { 98 public void run() { 99 wb.NMTReleaseMemory(addr, reserveSize); 100 } 101 }; 102 releaseThread.start(); 103 releaseThread.join(); 104 105 output = new OutputAnalyzer(pb.start()); 106 output.shouldNotContain("Test (reserved="); 107 output.shouldNotContain("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved"); 108 } 109 110 }