ctornqvi@4518: /*
ctornqvi@4518:  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
ctornqvi@4518:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ctornqvi@4518:  *
ctornqvi@4518:  * This code is free software; you can redistribute it and/or modify it
ctornqvi@4518:  * under the terms of the GNU General Public License version 2 only, as
ctornqvi@4518:  * published by the Free Software Foundation.
ctornqvi@4518:  *
ctornqvi@4518:  * This code is distributed in the hope that it will be useful, but WITHOUT
ctornqvi@4518:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ctornqvi@4518:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
ctornqvi@4518:  * version 2 for more details (a copy is included in the LICENSE file that
ctornqvi@4518:  * accompanied this code).
ctornqvi@4518:  *
ctornqvi@4518:  * You should have received a copy of the GNU General Public License version
ctornqvi@4518:  * 2 along with this work; if not, write to the Free Software Foundation,
ctornqvi@4518:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ctornqvi@4518:  *
ctornqvi@4518:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ctornqvi@4518:  * or visit www.oracle.com if you need additional information or have any
ctornqvi@4518:  * questions.
ctornqvi@4518:  */
ctornqvi@4518: 
ctornqvi@4518: /*
ctornqvi@4518:  * @test
ctornqvi@4518:  * @summary Test consistency of NMT by leaking a few select allocations of the Test type and then verify visibility with jcmd
ctornqvi@4518:  * @key nmt jcmd
mgerdin@4637:  * @library /testlibrary /testlibrary/whitebox
ctornqvi@4885:  * @build MallocTestType
mgerdin@4637:  * @run main ClassFileInstaller sun.hotspot.WhiteBox
ctornqvi@4885:  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocTestType
ctornqvi@4518:  */
ctornqvi@4518: 
ctornqvi@4518: import com.oracle.java.testlibrary.*;
ctornqvi@4518: import sun.hotspot.WhiteBox;
ctornqvi@4518: 
ctornqvi@4885: public class MallocTestType {
ctornqvi@4518: 
ctornqvi@4518:   public static void main(String args[]) throws Exception {
ctornqvi@4518:     OutputAnalyzer output;
ctornqvi@4885:     WhiteBox wb = WhiteBox.getWhiteBox();
ctornqvi@4518: 
ctornqvi@4518:     // Grab my own PID
ctornqvi@4518:     String pid = Integer.toString(ProcessTools.getProcessId());
ctornqvi@4518:     ProcessBuilder pb = new ProcessBuilder();
ctornqvi@4518: 
ctornqvi@4885:     // Use WB API to alloc and free with the mtTest type
ctornqvi@4885:     long memAlloc3 = wb.NMTMalloc(128 * 1024);
ctornqvi@4885:     long memAlloc2 = wb.NMTMalloc(256 * 1024);
ctornqvi@4885:     wb.NMTFree(memAlloc3);
ctornqvi@4885:     long memAlloc1 = wb.NMTMalloc(512 * 1024);
ctornqvi@4885:     wb.NMTFree(memAlloc2);
ctornqvi@4518: 
ctornqvi@4518:     // Use WB API to ensure that all data has been merged before we continue
ctornqvi@4885:     if (!wb.NMTWaitForDataMerge()) {
ctornqvi@4518:       throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
ctornqvi@4518:     }
ctornqvi@4518: 
ctornqvi@4518:     // Run 'jcmd <pid> VM.native_memory summary'
ctornqvi@4518:     pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"});
ctornqvi@4518:     output = new OutputAnalyzer(pb.start());
ctornqvi@4518:     output.shouldContain("Test (reserved=512KB, committed=512KB)");
ctornqvi@4518: 
ctornqvi@4518:     // Free the memory allocated by NMTAllocTest
ctornqvi@4885:     wb.NMTFree(memAlloc1);
ctornqvi@4518: 
ctornqvi@4518:     // Use WB API to ensure that all data has been merged before we continue
ctornqvi@4885:     if (!wb.NMTWaitForDataMerge()) {
ctornqvi@4518:       throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
ctornqvi@4518:     }
ctornqvi@4518:     output = new OutputAnalyzer(pb.start());
ctornqvi@4518:     output.shouldNotContain("Test (reserved=");
ctornqvi@4518:   }
ctornqvi@4518: }