jdk8-mips64-public/hotspot: test/runtime/NMT/MallocTestType.java@3b890cd4da64 (annotated)

test/runtime/NMT/MallocTestType.java@3b890cd4da64 (annotated)

test/runtime/NMT/MallocTestType.java

Wed, 03 Apr 2013 21:41:33 +0200

author: ctornqvi
date: Wed, 03 Apr 2013 21:41:33 +0200
changeset 4885: 3b890cd4da64
parent 4637: test/runtime/NMT/AllocTestType.java@1b0dc9f87e75
child 6876: 710a3c8b516e
child 7075: ac12996df59b
permissions: -rw-r--r--

8009125: Add NMT tests for Virtual Memory operations
Summary: Tests added for Reserve/Commit/Uncommit/Unreserve operations
Reviewed-by: zgu, mgerdin

 /*
  * 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 MallocTestType
  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocTestType
  */
 import com.oracle.java.testlibrary.*;
 import sun.hotspot.WhiteBox;
 public class MallocTestType {
   public static void main(String args[]) throws Exception {
     OutputAnalyzer output;
     WhiteBox wb = WhiteBox.getWhiteBox();
     // Grab my own PID
     String pid = Integer.toString(ProcessTools.getProcessId());
     ProcessBuilder pb = new ProcessBuilder();
     // Use WB API to alloc and free with the mtTest type
     long memAlloc3 = wb.NMTMalloc(128 * 1024);
     long memAlloc2 = wb.NMTMalloc(256 * 1024);
     wb.NMTFree(memAlloc3);
     long memAlloc1 = wb.NMTMalloc(512 * 1024);
     wb.NMTFree(memAlloc2);
     // Use WB API to ensure that all data has been merged before we continue
     if (!wb.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
     wb.NMTFree(memAlloc1);
     // Use WB API to ensure that all data has been merged before we continue
     if (!wb.NMTWaitForDataMerge()) {
       throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
     }
     output = new OutputAnalyzer(pb.start());
     output.shouldNotContain("Test (reserved=");
   }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

test/runtime/NMT/MallocTestType.java@3b890cd4da64 (annotated)

test/runtime/NMT/MallocTestType.java