Author: ebourg
Date: Thu Dec 18 23:48:27 2014
New Revision: 1646584
URL: http://svn.apache.org/r1646584
Log:
Added a JMH benchmark for the class parser and the class generator (run with:
mvn test -Pbenchmark)
Added:
commons/proper/bcel/trunk/src/test/java/org/apache/bcel/BCELBenchmark.java
(with props)
Modified:
commons/proper/bcel/trunk/pom.xml
commons/proper/bcel/trunk/src/test/java/org/apache/bcel/PerformanceTest.java
Modified: commons/proper/bcel/trunk/pom.xml
URL:
http://svn.apache.org/viewvc/commons/proper/bcel/trunk/pom.xml?rev=1646584&r1=1646583&r2=1646584&view=diff
==============================================================================
--- commons/proper/bcel/trunk/pom.xml (original)
+++ commons/proper/bcel/trunk/pom.xml Thu Dec 18 23:48:27 2014
@@ -190,6 +190,14 @@
</executions>
</plugin>
<plugin>
+ <artifactId>maven-compiler-plugin</artifactId>
+ <configuration>
+ <testExcludes>
+ <testExclude>**/*Benchmark*</testExclude>
+ </testExcludes>
+ </configuration>
+ </plugin>
+ <plugin>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<includes>
@@ -341,6 +349,89 @@
<findbugs.plugin.version>3.0.0</findbugs.plugin.version>
</properties>
</profile>
+
+ <!-- Profile to build and run the benchmarks. Use 'mvn test -Pbenchmark',
and add '-Dbenchmark=foo' to run only the foo benchmark -->
+ <profile>
+ <id>benchmark</id>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.openjdk.jmh</groupId>
+ <artifactId>jmh-core</artifactId>
+ <version>1.3.4</version>
+ <scope>test</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>org.openjdk.jmh</groupId>
+ <artifactId>jmh-generator-annprocess</artifactId>
+ <version>1.3.4</version>
+ <scope>test</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>commons-io</groupId>
+ <artifactId>commons-io</artifactId>
+ <version>2.4</version>
+ <scope>test</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.commons</groupId>
+ <artifactId>commons-collections4</artifactId>
+ <version>4.0</version>
+ <scope>test</scope>
+ </dependency>
+ </dependencies>
+
+ <properties>
+ <skipTests>true</skipTests>
+ <benchmark>org.apache</benchmark>
+ </properties>
+
+ <build>
+ <plugins>
+ <!-- Enable the compilation of the benchmarks -->
+ <plugin>
+ <artifactId>maven-compiler-plugin</artifactId>
+ <configuration combine.self="override">
+ <testIncludes>
+ <testInclude>**/*</testInclude>
+ </testIncludes>
+ </configuration>
+ </plugin>
+
+ <!-- Hook the benchmarks to the test phase -->
+ <plugin>
+ <groupId>org.codehaus.mojo</groupId>
+ <artifactId>exec-maven-plugin</artifactId>
+ <executions>
+ <execution>
+ <id>benchmark</id>
+ <phase>test</phase>
+ <goals>
+ <goal>exec</goal>
+ </goals>
+ <configuration>
+ <classpathScope>test</classpathScope>
+ <executable>java</executable>
+ <arguments>
+ <argument>-classpath</argument>
+ <classpath/>
+ <argument>org.openjdk.jmh.Main</argument>
+ <argument>-rf</argument>
+ <argument>json</argument>
+ <argument>-rff</argument>
+ <argument>target/jmh-result.json</argument>
+ <argument>${benchmark}</argument>
+ </arguments>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
+ </plugins>
+ </build>
+ </profile>
</profiles>
-
+
</project>
Added:
commons/proper/bcel/trunk/src/test/java/org/apache/bcel/BCELBenchmark.java
URL:
http://svn.apache.org/viewvc/commons/proper/bcel/trunk/src/test/java/org/apache/bcel/BCELBenchmark.java?rev=1646584&view=auto
==============================================================================
--- commons/proper/bcel/trunk/src/test/java/org/apache/bcel/BCELBenchmark.java
(added)
+++ commons/proper/bcel/trunk/src/test/java/org/apache/bcel/BCELBenchmark.java
Thu Dec 18 23:48:27 2014
@@ -0,0 +1,125 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.bcel;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+
+import org.apache.bcel.classfile.ClassParser;
+import org.apache.bcel.classfile.JavaClass;
+import org.apache.bcel.classfile.Method;
+import org.apache.bcel.generic.ClassGen;
+import org.apache.bcel.generic.InstructionList;
+import org.apache.bcel.generic.MethodGen;
+import org.apache.commons.collections4.Predicate;
+import org.apache.commons.collections4.iterators.EnumerationIterator;
+import org.apache.commons.collections4.iterators.FilterIterator;
+import org.apache.commons.collections4.iterators.IteratorIterable;
+import org.apache.commons.io.IOUtils;
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Fork;
+import org.openjdk.jmh.annotations.Measurement;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+import org.openjdk.jmh.annotations.Threads;
+import org.openjdk.jmh.annotations.Warmup;
+import org.openjdk.jmh.infra.Blackhole;
+
+@BenchmarkMode(Mode.AverageTime)
+@Fork(value = 1, jvmArgs = "-server")
+@Threads(1)
+@Warmup(iterations = 10)
+@Measurement(iterations = 20)
+@OutputTimeUnit(TimeUnit.MILLISECONDS)
+public class BCELBenchmark {
+
+ private JarFile getJarFile() throws IOException {
+ String javaHome = System.getProperty("java.home");
+ return new JarFile(javaHome + "/lib/rt.jar");
+ }
+
+ private Iterable<JarEntry> getClasses(JarFile jar) {
+ return new IteratorIterable<JarEntry>(new FilterIterator<JarEntry>(new
EnumerationIterator<JarEntry>(jar.entries()), new Predicate<JarEntry>() {
+ public boolean evaluate(JarEntry entry) {
+ return entry.getName().endsWith(".class");
+ }
+ }));
+ }
+
+ /**
+ * Baseline benchmark. Read the classes but don't parse them.
+ */
+ @Benchmark
+ public void baseline(Blackhole bh) throws IOException {
+ JarFile jar = getJarFile();
+
+ for (JarEntry entry : getClasses(jar)) {
+ byte[] bytes = IOUtils.toByteArray(jar.getInputStream(entry));
+ bh.consume(bytes);
+ }
+
+ jar.close();
+ }
+
+ @Benchmark
+ public void parser(Blackhole bh) throws IOException {
+ JarFile jar = getJarFile();
+
+ for (JarEntry entry : getClasses(jar)) {
+ byte[] bytes = IOUtils.toByteArray(jar.getInputStream(entry));
+
+ JavaClass clazz = new ClassParser(new ByteArrayInputStream(bytes),
entry.getName()).parse();
+ bh.consume(clazz);
+ }
+
+ jar.close();
+ }
+
+ @Benchmark
+ public void generator(Blackhole bh) throws IOException {
+ JarFile jar = getJarFile();
+
+ for (JarEntry entry : getClasses(jar)) {
+ byte[] bytes = IOUtils.toByteArray(jar.getInputStream(entry));
+
+ JavaClass clazz = new ClassParser(new ByteArrayInputStream(bytes),
entry.getName()).parse();
+
+ ClassGen cg = new ClassGen(clazz);
+
+ for (Method m : cg.getMethods()) {
+ MethodGen mg = new MethodGen(m, cg.getClassName(),
cg.getConstantPool());
+ InstructionList il = mg.getInstructionList();
+
+ if (il != null) {
+ mg.getInstructionList().setPositions();
+ mg.setMaxLocals();
+ mg.setMaxStack();
+ }
+ cg.replaceMethod(m, mg.getMethod());
+ }
+
+ bh.consume(cg.getJavaClass().getBytes());
+ }
+
+ jar.close();
+ }
+}
Propchange:
commons/proper/bcel/trunk/src/test/java/org/apache/bcel/BCELBenchmark.java
------------------------------------------------------------------------------
svn:eol-style = native
Propchange:
commons/proper/bcel/trunk/src/test/java/org/apache/bcel/BCELBenchmark.java
------------------------------------------------------------------------------
svn:keywords = Date Author Id Revision HeadURL
Modified:
commons/proper/bcel/trunk/src/test/java/org/apache/bcel/PerformanceTest.java
URL:
http://svn.apache.org/viewvc/commons/proper/bcel/trunk/src/test/java/org/apache/bcel/PerformanceTest.java?rev=1646584&r1=1646583&r2=1646584&view=diff
==============================================================================
---
commons/proper/bcel/trunk/src/test/java/org/apache/bcel/PerformanceTest.java
(original)
+++
commons/proper/bcel/trunk/src/test/java/org/apache/bcel/PerformanceTest.java
Thu Dec 18 23:48:27 2014
@@ -73,7 +73,7 @@ public final class PerformanceTest exten
String javaHome = System.getProperty("java.home");
- JarFile jar = new JarFile(javaHome + "/lib/dt.jar");
+ JarFile jar = new JarFile(javaHome + "/lib/rt.jar");
Enumeration<?> en = jar.entries();
int i = 0;
