| /* |
| * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @key nmt jcmd |
| * @library /testlibrary /../../test/lib |
| * @build ThreadedMallocTestType |
| * @run main ClassFileInstaller sun.hotspot.WhiteBox |
| * sun.hotspot.WhiteBox$WhiteBoxPermission |
| * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ThreadedMallocTestType |
| */ |
| |
| import com.oracle.java.testlibrary.*; |
| import sun.hotspot.WhiteBox; |
| |
| public class ThreadedMallocTestType { |
| public static long memAlloc1; |
| public static long memAlloc2; |
| public static long memAlloc3; |
| |
| public static void main(String args[]) throws Exception { |
| OutputAnalyzer output; |
| final WhiteBox wb = WhiteBox.getWhiteBox(); |
| |
| // Grab my own PID |
| String pid = Integer.toString(ProcessTools.getProcessId()); |
| ProcessBuilder pb = new ProcessBuilder(); |
| |
| Thread allocThread = new Thread() { |
| public void run() { |
| // Alloc memory using the WB api |
| memAlloc1 = wb.NMTMalloc(128 * 1024); |
| memAlloc2 = wb.NMTMalloc(256 * 1024); |
| memAlloc3 = wb.NMTMalloc(512 * 1024); |
| } |
| }; |
| |
| allocThread.start(); |
| allocThread.join(); |
| |
| // Run 'jcmd <pid> VM.native_memory summary' |
| pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"}); |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldContain("Test (reserved=896KB, committed=896KB)"); |
| |
| Thread freeThread = new Thread() { |
| public void run() { |
| // Free the memory allocated by NMTMalloc |
| wb.NMTFree(memAlloc1); |
| wb.NMTFree(memAlloc2); |
| wb.NMTFree(memAlloc3); |
| } |
| }; |
| |
| freeThread.start(); |
| freeThread.join(); |
| |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldNotContain("Test (reserved="); |
| } |
| } |