Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: test/runtime/NMT/MallocTrackingVerify.java
test/runtime/NMT/MallocTrackingVerify.java
- changeset 7156
- 4edd7572c235
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| 7142:4d8781a35525 | 7156:4edd7572c235 |
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| 1 /* | |
| 2 * Copyright (c) 2014, 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 * @bug 8054836 | |
| 27 * @summary Test to verify correctness of malloc tracking | |
| 28 * @key nmt jcmd | |
| 29 * @library /testlibrary /testlibrary/whitebox | |
| 30 * @build MallocTrackingVerify | |
| 31 * @run main ClassFileInstaller sun.hotspot.WhiteBox | |
| 32 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocTrackingVerify | |
| 33 * | |
| 34 */ | |
| 35 | |
| 36 import java.util.ArrayList; | |
| 37 import java.util.Random; | |
| 38 | |
| 39 import com.oracle.java.testlibrary.*; | |
| 40 | |
| 41 import sun.hotspot.WhiteBox; | |
| 42 | |
| 43 public class MallocTrackingVerify { | |
| 44 private static int MAX_ALLOC = 4 * 1024; | |
| 45 | |
| 46 static ArrayList<MallocMemory> mallocd_memory = new ArrayList<MallocMemory>(); | |
| 47 static long mallocd_total = 0; | |
| 48 public static WhiteBox wb = WhiteBox.getWhiteBox(); | |
| 49 | |
| 50 public static void main(String args[]) throws Exception { | |
| 51 OutputAnalyzer output; | |
| 52 | |
| 53 // Grab my own PID | |
| 54 String pid = Integer.toString(ProcessTools.getProcessId()); | |
| 55 ProcessBuilder pb = new ProcessBuilder(); | |
| 56 | |
| 57 Random random = new Random(); | |
| 58 // Allocate small amounts of memory with random pseudo call stack | |
| 59 while (mallocd_total < MAX_ALLOC) { | |
| 60 int size = random.nextInt(31) + 1; | |
| 61 long addr = wb.NMTMallocWithPseudoStack(size, random.nextInt()); | |
| 62 if (addr != 0) { | |
| 63 MallocMemory mem = new MallocMemory(addr, size); | |
| 64 mallocd_memory.add(mem); | |
| 65 mallocd_total += size; | |
| 66 } else { | |
| 67 System.out.println("Out of malloc memory"); | |
| 68 break; | |
| 69 } | |
| 70 } | |
| 71 | |
| 72 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary" }); | |
| 73 output = new OutputAnalyzer(pb.start()); | |
| 74 output.shouldContain("Test (reserved=4KB, committed=4KB)"); | |
| 75 | |
| 76 // Free | |
| 77 for (MallocMemory mem : mallocd_memory) { | |
| 78 wb.NMTFree(mem.addr()); | |
| 79 } | |
| 80 | |
| 81 // Run 'jcmd <pid> VM.native_memory summary', check for expected output | |
| 82 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, | |
| 83 "VM.native_memory", "summary" }); | |
| 84 output = new OutputAnalyzer(pb.start()); | |
| 85 output.shouldNotContain("Test (reserved="); | |
| 86 } | |
| 87 | |
| 88 static class MallocMemory { | |
| 89 private long addr; | |
| 90 private int size; | |
| 91 | |
| 92 MallocMemory(long addr, int size) { | |
| 93 this.addr = addr; | |
| 94 this.size = size; | |
| 95 } | |
| 96 | |
| 97 long addr() { | |
| 98 return this.addr; | |
| 99 } | |
| 100 | |
| 101 int size() { | |
| 102 return this.size; | |
| 103 } | |
| 104 } | |
| 105 } |
