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annotate test/runtime/NMT/MallocTrackingVerify.java @ 20941:4f45e4d3361c

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Truffle-DSL: rename GenericParser to Fallbackparser.
author Christian Humer <christian.humer@gmail.com>
date Tue, 14 Apr 2015 15:16:14 +0200
parents 4edd7572c235
children
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1 /*
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23
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24 /*
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25 * @test
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26 * @bug 8054836
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27 * @summary Test to verify correctness of malloc tracking
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28 * @key nmt jcmd
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29 * @library /testlibrary /testlibrary/whitebox
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30 * @build MallocTrackingVerify
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31 * @run main ClassFileInstaller sun.hotspot.WhiteBox
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32 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocTrackingVerify
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33 *
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34 */
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35
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36 import java.util.ArrayList;
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37 import java.util.Random;
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38
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39 import com.oracle.java.testlibrary.*;
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40
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41 import sun.hotspot.WhiteBox;
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42
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43 public class MallocTrackingVerify {
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44 private static int MAX_ALLOC = 4 * 1024;
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45
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46 static ArrayList<MallocMemory> mallocd_memory = new ArrayList<MallocMemory>();
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47 static long mallocd_total = 0;
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48 public static WhiteBox wb = WhiteBox.getWhiteBox();
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49
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50 public static void main(String args[]) throws Exception {
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51 OutputAnalyzer output;
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52
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53 // Grab my own PID
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54 String pid = Integer.toString(ProcessTools.getProcessId());
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55 ProcessBuilder pb = new ProcessBuilder();
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56
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57 Random random = new Random();
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58 // Allocate small amounts of memory with random pseudo call stack
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59 while (mallocd_total < MAX_ALLOC) {
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60 int size = random.nextInt(31) + 1;
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61 long addr = wb.NMTMallocWithPseudoStack(size, random.nextInt());
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62 if (addr != 0) {
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63 MallocMemory mem = new MallocMemory(addr, size);
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64 mallocd_memory.add(mem);
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65 mallocd_total += size;
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66 } else {
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67 System.out.println("Out of malloc memory");
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68 break;
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69 }
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70 }
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71
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72 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary" });
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73 output = new OutputAnalyzer(pb.start());
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74 output.shouldContain("Test (reserved=4KB, committed=4KB)");
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75
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76 // Free
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77 for (MallocMemory mem : mallocd_memory) {
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78 wb.NMTFree(mem.addr());
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79 }
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80
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81 // Run 'jcmd <pid> VM.native_memory summary', check for expected output
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82 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid,
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83 "VM.native_memory", "summary" });
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84 output = new OutputAnalyzer(pb.start());
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85 output.shouldNotContain("Test (reserved=");
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86 }
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87
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88 static class MallocMemory {
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89 private long addr;
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90 private int size;
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91
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92 MallocMemory(long addr, int size) {
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93 this.addr = addr;
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94 this.size = size;
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95 }
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96
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97 long addr() {
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98 return this.addr;
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99 }
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100
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101 int size() {
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102 return this.size;
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103 }
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104 }
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105 }