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annotate truffle/com.oracle.truffle.api.test/src/com/oracle/truffle/api/profiles/LazyProfileLoadingTest.java @ 22501:a63bda98cfdb

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Extract profiles into separate package. Add isProfilingEnabled in TruffleRuntime to disable profiling in the default runtime; Add low overhead profiles for primitives; Add LoopConditionProfile; Profile footprint/threadsafety improvements; Make toString implementations more consistent; Greatly enhanced javadoc documentation for profiles; Deprecate old profiles
author Christian Humer <christian.humer@oracle.com>
date Wed, 16 Dec 2015 16:38:13 +0100
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children 4ba1aa33fda4
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22501
a63bda98cfdb Extract profiles into separate package. Add isProfilingEnabled in TruffleRuntime to disable profiling in the default runtime; Add low overhead profiles for primitives; Add LoopConditionProfile; Profile footprint/threadsafety improvements; Make toString implementations more consistent; Greatly enhanced javadoc documentation for profiles; Deprecate old profiles
Christian Humer <christian.humer@oracle.com>
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1 /*
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2 * Copyright (c) 2015, 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
a63bda98cfdb Extract profiles into separate package. Add isProfilingEnabled in TruffleRuntime to disable profiling in the default runtime; Add low overhead profiles for primitives; Add LoopConditionProfile; Profile footprint/threadsafety improvements; Make toString implementations more consistent; Greatly enhanced javadoc documentation for profiles; Deprecate old profiles
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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
a63bda98cfdb Extract profiles into separate package. Add isProfilingEnabled in TruffleRuntime to disable profiling in the default runtime; Add low overhead profiles for primitives; Add LoopConditionProfile; Profile footprint/threadsafety improvements; Make toString implementations more consistent; Greatly enhanced javadoc documentation for profiles; Deprecate old profiles
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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
a63bda98cfdb Extract profiles into separate package. Add isProfilingEnabled in TruffleRuntime to disable profiling in the default runtime; Add low overhead profiles for primitives; Add LoopConditionProfile; Profile footprint/threadsafety improvements; Make toString implementations more consistent; Greatly enhanced javadoc documentation for profiles; Deprecate old profiles
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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
a63bda98cfdb Extract profiles into separate package. Add isProfilingEnabled in TruffleRuntime to disable profiling in the default runtime; Add low overhead profiles for primitives; Add LoopConditionProfile; Profile footprint/threadsafety improvements; Make toString implementations more consistent; Greatly enhanced javadoc documentation for profiles; Deprecate old profiles
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16 * 2 along with this work; if not, write to the Free Software Foundation,
a63bda98cfdb Extract profiles into separate package. Add isProfilingEnabled in TruffleRuntime to disable profiling in the default runtime; Add low overhead profiles for primitives; Add LoopConditionProfile; Profile footprint/threadsafety improvements; Make toString implementations more consistent; Greatly enhanced javadoc documentation for profiles; Deprecate old profiles
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a63bda98cfdb Extract profiles into separate package. Add isProfilingEnabled in TruffleRuntime to disable profiling in the default runtime; Add low overhead profiles for primitives; Add LoopConditionProfile; Profile footprint/threadsafety improvements; Make toString implementations more consistent; Greatly enhanced javadoc documentation for profiles; Deprecate old profiles
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
a63bda98cfdb Extract profiles into separate package. Add isProfilingEnabled in TruffleRuntime to disable profiling in the default runtime; Add low overhead profiles for primitives; Add LoopConditionProfile; Profile footprint/threadsafety improvements; Make toString implementations more consistent; Greatly enhanced javadoc documentation for profiles; Deprecate old profiles
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20 * or visit www.oracle.com if you need additional information or have any
a63bda98cfdb Extract profiles into separate package. Add isProfilingEnabled in TruffleRuntime to disable profiling in the default runtime; Add low overhead profiles for primitives; Add LoopConditionProfile; Profile footprint/threadsafety improvements; Make toString implementations more consistent; Greatly enhanced javadoc documentation for profiles; Deprecate old profiles
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21 * questions.
a63bda98cfdb Extract profiles into separate package. Add isProfilingEnabled in TruffleRuntime to disable profiling in the default runtime; Add low overhead profiles for primitives; Add LoopConditionProfile; Profile footprint/threadsafety improvements; Make toString implementations more consistent; Greatly enhanced javadoc documentation for profiles; Deprecate old profiles
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22 */
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23 package com.oracle.truffle.api.profiles;
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24
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25 import java.lang.reflect.InvocationTargetException;
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26 import java.lang.reflect.Method;
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27 import java.net.URLClassLoader;
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28
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29 import org.junit.Assert;
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30 import org.junit.Test;
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31 import org.junit.runner.RunWith;
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32 import org.junit.runners.BlockJUnit4ClassRunner;
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33 import org.junit.runners.model.InitializationError;
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34
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35 import com.oracle.truffle.api.Truffle;
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36 import com.oracle.truffle.api.profiles.LazyProfileLoadingTest.SeparateClassloaderTestRunner;
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37
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38 @RunWith(SeparateClassloaderTestRunner.class)
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39 public class LazyProfileLoadingTest {
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40
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41 @Test
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42 public void testLazyLoading() {
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43 IntValueProfile.createIdentityProfile();
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44 assertDefaultProfile(IntValueProfile.class);
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46 DoubleValueProfile.createRawIdentityProfile();
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47 assertDefaultProfile(DoubleValueProfile.class);
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49 LongValueProfile.createIdentityProfile();
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50 assertDefaultProfile(LongValueProfile.class);
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52 FloatValueProfile.createRawIdentityProfile();
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53 assertDefaultProfile(FloatValueProfile.class);
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55 ByteValueProfile.createIdentityProfile();
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56 assertDefaultProfile(ByteValueProfile.class);
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58 LoopConditionProfile.createCountingProfile();
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59 assertDefaultProfile(LoopConditionProfile.class);
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61 BranchProfile.create();
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62 assertDefaultProfile(BranchProfile.class);
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64 PrimitiveValueProfile.createEqualityProfile();
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65 assertDefaultProfile(PrimitiveValueProfile.class);
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67 ConditionProfile.createBinaryProfile();
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68 assertLoaded(ConditionProfile.class.getName(), "Binary", "Disabled");
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70 ConditionProfile.createCountingProfile();
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71 assertLoaded(ConditionProfile.class.getName(), "Counting", "Disabled");
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72
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73 ValueProfile.createClassProfile();
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74 assertLoaded(ValueProfile.class.getName(), "ExactClass", "Disabled");
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75
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76 ValueProfile.createIdentityProfile();
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77 assertLoaded(ValueProfile.class.getName(), "Identity", "Disabled");
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78 }
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79
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80 private void assertDefaultProfile(Class<?> clazz) {
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81 assertLoaded(clazz.getName(), "Enabled", "Disabled");
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82 }
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83
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84 private void assertLoaded(String className, String posInnerClass, String negInnerClass) {
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85 String enabledClass = className + "$" + posInnerClass;
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86 String disabledClass = className + "$" + negInnerClass;
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87 if (Truffle.getRuntime().isProfilingEnabled()) {
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88 Assert.assertFalse(isLoaded(disabledClass));
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89 Assert.assertTrue(isLoaded(enabledClass));
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90 } else {
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91 Assert.assertFalse(isLoaded(enabledClass));
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92 Assert.assertTrue(isLoaded(disabledClass));
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93 }
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94 }
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95
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96 private boolean isLoaded(String className) {
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97 ClassLoader classLoader = getClass().getClassLoader();
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98 Method m;
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99 try {
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100 m = ClassLoader.class.getDeclaredMethod("findLoadedClass", String.class);
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101 m.setAccessible(true);
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102 return m.invoke(classLoader, className) != null;
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103 } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
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104 throw new RuntimeException(e);
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105 }
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106 }
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107
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108 public static class SeparateClassloaderTestRunner extends BlockJUnit4ClassRunner {
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109
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110 public SeparateClassloaderTestRunner(Class<?> clazz) throws InitializationError {
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111 super(getFromTestClassloader(clazz));
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112 }
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113
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114 private static Class<?> getFromTestClassloader(Class<?> clazz) throws InitializationError {
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115 try {
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116 ClassLoader testClassLoader = new TestClassLoader();
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117 return Class.forName(clazz.getName(), true, testClassLoader);
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118 } catch (ClassNotFoundException e) {
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119 throw new InitializationError(e);
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120 }
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121 }
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122
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123 public static class TestClassLoader extends URLClassLoader {
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124 public TestClassLoader() {
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125 super(((URLClassLoader) getSystemClassLoader()).getURLs());
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126 }
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127
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128 @Override
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129 public Class<?> loadClass(String name) throws ClassNotFoundException {
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130 if (name.startsWith(Profile.class.getPackage().getName())) {
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131 return super.findClass(name);
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132 }
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133 return super.loadClass(name);
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134 }
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135 }
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136 }
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137
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138 }