| /* |
| * Copyright (c) 2013, 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 |
| * @summary Test consistency of NMT by leaking a few select allocations of the Test type and then verify visibility with jcmd |
| * @key nmt jcmd |
| * @library /testlibrary /testlibrary/whitebox |
| * @build AllocTestType |
| * @run main ClassFileInstaller sun.hotspot.WhiteBox |
| * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail AllocTestType |
| */ |
| |
| import com.oracle.java.testlibrary.*; |
| import sun.hotspot.WhiteBox; |
| |
| public class AllocTestType { |
| |
| public static void main(String args[]) throws Exception { |
| OutputAnalyzer output; |
| |
| // Grab my own PID |
| String pid = Integer.toString(ProcessTools.getProcessId()); |
| ProcessBuilder pb = new ProcessBuilder(); |
| |
| // Use WB API to alloc with the mtTest type |
| if (!WhiteBox.getWhiteBox().NMTAllocTest()) { |
| throw new Exception("Call to WB API NMTAllocTest() failed"); |
| } |
| |
| // Use WB API to ensure that all data has been merged before we continue |
| if (!WhiteBox.getWhiteBox().NMTWaitForDataMerge()) { |
| throw new Exception("Call to WB API NMTWaitForDataMerge() failed"); |
| } |
| |
| // 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=512KB, committed=512KB)"); |
| |
| // Free the memory allocated by NMTAllocTest |
| if (!WhiteBox.getWhiteBox().NMTFreeTestMemory()) { |
| throw new Exception("Call to WB API NMTFreeTestMemory() failed"); |
| } |
| |
| // Use WB API to ensure that all data has been merged before we continue |
| if (!WhiteBox.getWhiteBox().NMTWaitForDataMerge()) { |
| throw new Exception("Call to WB API NMTWaitForDataMerge() failed"); |
| } |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldNotContain("Test (reserved="); |
| } |
| } |