Thu, 04 Sep 2014 10:14:37 -0400
8054711: [TESTBUG] Enable NMT2 tests after NMT2 is integrated
Summary: enable tests for NMT2
Reviewed-by: ctornqvi, zgu
1 /*
2 * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
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7 * published by the Free Software Foundation.
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 */
24 /*
25 * @test
26 * @summary Test consistency of NMT by leaking a few select allocations of the Test type and then verify visibility with jcmd
27 * @key nmt jcmd
28 * @library /testlibrary /testlibrary/whitebox
29 * @build MallocTestType
30 * @run main ClassFileInstaller sun.hotspot.WhiteBox
31 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocTestType
32 */
34 import com.oracle.java.testlibrary.*;
35 import sun.hotspot.WhiteBox;
37 public class MallocTestType {
39 public static void main(String args[]) throws Exception {
40 OutputAnalyzer output;
41 WhiteBox wb = WhiteBox.getWhiteBox();
43 // Grab my own PID
44 String pid = Integer.toString(ProcessTools.getProcessId());
45 ProcessBuilder pb = new ProcessBuilder();
47 // Use WB API to alloc and free with the mtTest type
48 long memAlloc3 = wb.NMTMalloc(128 * 1024);
49 long memAlloc2 = wb.NMTMalloc(256 * 1024);
50 wb.NMTFree(memAlloc3);
51 long memAlloc1 = wb.NMTMalloc(512 * 1024);
52 wb.NMTFree(memAlloc2);
54 // Run 'jcmd <pid> VM.native_memory summary'
55 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"});
56 output = new OutputAnalyzer(pb.start());
57 output.shouldContain("Test (reserved=512KB, committed=512KB)");
59 // Free the memory allocated by NMTAllocTest
60 wb.NMTFree(memAlloc1);
62 output = new OutputAnalyzer(pb.start());
63 output.shouldNotContain("Test (reserved=");
64 }
65 }