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comparison 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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22500:fbe1eb7b4172 22501:a63bda98cfdb
1 /*
2 * Copyright (c) 2015, 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 package com.oracle.truffle.api.profiles;
24
25 import java.lang.reflect.InvocationTargetException;
26 import java.lang.reflect.Method;
27 import java.net.URLClassLoader;
28
29 import org.junit.Assert;
30 import org.junit.Test;
31 import org.junit.runner.RunWith;
32 import org.junit.runners.BlockJUnit4ClassRunner;
33 import org.junit.runners.model.InitializationError;
34
35 import com.oracle.truffle.api.Truffle;
36 import com.oracle.truffle.api.profiles.LazyProfileLoadingTest.SeparateClassloaderTestRunner;
37
38 @RunWith(SeparateClassloaderTestRunner.class)
39 public class LazyProfileLoadingTest {
40
41 @Test
42 public void testLazyLoading() {
43 IntValueProfile.createIdentityProfile();
44 assertDefaultProfile(IntValueProfile.class);
45
46 DoubleValueProfile.createRawIdentityProfile();
47 assertDefaultProfile(DoubleValueProfile.class);
48
49 LongValueProfile.createIdentityProfile();
50 assertDefaultProfile(LongValueProfile.class);
51
52 FloatValueProfile.createRawIdentityProfile();
53 assertDefaultProfile(FloatValueProfile.class);
54
55 ByteValueProfile.createIdentityProfile();
56 assertDefaultProfile(ByteValueProfile.class);
57
58 LoopConditionProfile.createCountingProfile();
59 assertDefaultProfile(LoopConditionProfile.class);
60
61 BranchProfile.create();
62 assertDefaultProfile(BranchProfile.class);
63
64 PrimitiveValueProfile.createEqualityProfile();
65 assertDefaultProfile(PrimitiveValueProfile.class);
66
67 ConditionProfile.createBinaryProfile();
68 assertLoaded(ConditionProfile.class.getName(), "Binary", "Disabled");
69
70 ConditionProfile.createCountingProfile();
71 assertLoaded(ConditionProfile.class.getName(), "Counting", "Disabled");
72
73 ValueProfile.createClassProfile();
74 assertLoaded(ValueProfile.class.getName(), "ExactClass", "Disabled");
75
76 ValueProfile.createIdentityProfile();
77 assertLoaded(ValueProfile.class.getName(), "Identity", "Disabled");
78 }
79
80 private void assertDefaultProfile(Class<?> clazz) {
81 assertLoaded(clazz.getName(), "Enabled", "Disabled");
82 }
83
84 private void assertLoaded(String className, String posInnerClass, String negInnerClass) {
85 String enabledClass = className + "$" + posInnerClass;
86 String disabledClass = className + "$" + negInnerClass;
87 if (Truffle.getRuntime().isProfilingEnabled()) {
88 Assert.assertFalse(isLoaded(disabledClass));
89 Assert.assertTrue(isLoaded(enabledClass));
90 } else {
91 Assert.assertFalse(isLoaded(enabledClass));
92 Assert.assertTrue(isLoaded(disabledClass));
93 }
94 }
95
96 private boolean isLoaded(String className) {
97 ClassLoader classLoader = getClass().getClassLoader();
98 Method m;
99 try {
100 m = ClassLoader.class.getDeclaredMethod("findLoadedClass", String.class);
101 m.setAccessible(true);
102 return m.invoke(classLoader, className) != null;
103 } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
104 throw new RuntimeException(e);
105 }
106 }
107
108 public static class SeparateClassloaderTestRunner extends BlockJUnit4ClassRunner {
109
110 public SeparateClassloaderTestRunner(Class<?> clazz) throws InitializationError {
111 super(getFromTestClassloader(clazz));
112 }
113
114 private static Class<?> getFromTestClassloader(Class<?> clazz) throws InitializationError {
115 try {
116 ClassLoader testClassLoader = new TestClassLoader();
117 return Class.forName(clazz.getName(), true, testClassLoader);
118 } catch (ClassNotFoundException e) {
119 throw new InitializationError(e);
120 }
121 }
122
123 public static class TestClassLoader extends URLClassLoader {
124 public TestClassLoader() {
125 super(((URLClassLoader) getSystemClassLoader()).getURLs());
126 }
127
128 @Override
129 public Class<?> loadClass(String name) throws ClassNotFoundException {
130 if (name.startsWith(Profile.class.getPackage().getName())) {
131 return super.findClass(name);
132 }
133 return super.loadClass(name);
134 }
135 }
136 }
137
138 }