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/*
* 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=");
}
}
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