aoqi@0: /*
aoqi@0:  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /*
aoqi@0:  * @test
aoqi@0:  * @summary Test consistency of NMT by leaking a few select allocations of the Test type and then verify visibility with jcmd
aoqi@0:  * @key nmt jcmd
aoqi@0:  * @library /testlibrary /testlibrary/whitebox
aoqi@0:  * @build MallocTestType
aoqi@0:  * @run main ClassFileInstaller sun.hotspot.WhiteBox
aoqi@0:  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocTestType
aoqi@0:  */
aoqi@0: 
aoqi@0: import com.oracle.java.testlibrary.*;
aoqi@0: import sun.hotspot.WhiteBox;
aoqi@0: 
aoqi@0: public class MallocTestType {
aoqi@0: 
aoqi@0:   public static void main(String args[]) throws Exception {
aoqi@0:     OutputAnalyzer output;
aoqi@0:     WhiteBox wb = WhiteBox.getWhiteBox();
aoqi@0: 
aoqi@0:     // Grab my own PID
aoqi@0:     String pid = Integer.toString(ProcessTools.getProcessId());
aoqi@0:     ProcessBuilder pb = new ProcessBuilder();
aoqi@0: 
aoqi@0:     // Use WB API to alloc and free with the mtTest type
aoqi@0:     long memAlloc3 = wb.NMTMalloc(128 * 1024);
aoqi@0:     long memAlloc2 = wb.NMTMalloc(256 * 1024);
aoqi@0:     wb.NMTFree(memAlloc3);
aoqi@0:     long memAlloc1 = wb.NMTMalloc(512 * 1024);
aoqi@0:     wb.NMTFree(memAlloc2);
aoqi@0: 
aoqi@0:     // Use WB API to ensure that all data has been merged before we continue
aoqi@0:     if (!wb.NMTWaitForDataMerge()) {
aoqi@0:       throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
aoqi@0:     }
aoqi@0: 
aoqi@0:     // Run 'jcmd <pid> VM.native_memory summary'
aoqi@0:     pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"});
aoqi@0:     output = new OutputAnalyzer(pb.start());
aoqi@0:     output.shouldContain("Test (reserved=512KB, committed=512KB)");
aoqi@0: 
aoqi@0:     // Free the memory allocated by NMTAllocTest
aoqi@0:     wb.NMTFree(memAlloc1);
aoqi@0: 
aoqi@0:     // Use WB API to ensure that all data has been merged before we continue
aoqi@0:     if (!wb.NMTWaitForDataMerge()) {
aoqi@0:       throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
aoqi@0:     }
aoqi@0:     output = new OutputAnalyzer(pb.start());
aoqi@0:     output.shouldNotContain("Test (reserved=");
aoqi@0:   }
aoqi@0: }