Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: test/runtime/NMT/MallocTestType.java
test/runtime/NMT/MallocTestType.java
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| 1 /* | |
| 2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 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 | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 */ | |
| 23 | |
| 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 */ | |
| 33 | |
| 34 import com.oracle.java.testlibrary.*; | |
| 35 import sun.hotspot.WhiteBox; | |
| 36 | |
| 37 public class MallocTestType { | |
| 38 | |
| 39 public static void main(String args[]) throws Exception { | |
| 40 OutputAnalyzer output; | |
| 41 WhiteBox wb = WhiteBox.getWhiteBox(); | |
| 42 | |
| 43 // Grab my own PID | |
| 44 String pid = Integer.toString(ProcessTools.getProcessId()); | |
| 45 ProcessBuilder pb = new ProcessBuilder(); | |
| 46 | |
| 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); | |
| 53 | |
| 54 // Use WB API to ensure that all data has been merged before we continue | |
| 55 if (!wb.NMTWaitForDataMerge()) { | |
| 56 throw new Exception("Call to WB API NMTWaitForDataMerge() failed"); | |
| 57 } | |
| 58 | |
| 59 // Run 'jcmd <pid> VM.native_memory summary' | |
| 60 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"}); | |
| 61 output = new OutputAnalyzer(pb.start()); | |
| 62 output.shouldContain("Test (reserved=512KB, committed=512KB)"); | |
| 63 | |
| 64 // Free the memory allocated by NMTAllocTest | |
| 65 wb.NMTFree(memAlloc1); | |
| 66 | |
| 67 // Use WB API to ensure that all data has been merged before we continue | |
| 68 if (!wb.NMTWaitForDataMerge()) { | |
| 69 throw new Exception("Call to WB API NMTWaitForDataMerge() failed"); | |
| 70 } | |
| 71 output = new OutputAnalyzer(pb.start()); | |
| 72 output.shouldNotContain("Test (reserved="); | |
| 73 } | |
| 74 } |
