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Posted to commits@beam.apache.org by lc...@apache.org on 2016/07/06 17:20:50 UTC
[44/50] [abbrv] incubator-beam git commit: Add initial
microbenchmarks directory
Add initial microbenchmarks directory
Project: http://git-wip-us.apache.org/repos/asf/incubator-beam/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-beam/commit/b36aeb92
Tree: http://git-wip-us.apache.org/repos/asf/incubator-beam/tree/b36aeb92
Diff: http://git-wip-us.apache.org/repos/asf/incubator-beam/diff/b36aeb92
Branch: refs/heads/runners-spark2
Commit: b36aeb92003b1c613c56633b2b5a0800260d92d3
Parents: a17a8b2
Author: bchambers <bc...@google.com>
Authored: Tue Jun 28 15:55:16 2016 -0700
Committer: Luke Cwik <lc...@google.com>
Committed: Wed Jul 6 10:18:53 2016 -0700
----------------------------------------------------------------------
.../beam/sdk/transforms/DoFnReflector.java | 12 +-
sdks/java/microbenchmarks/README.md | 42 ++++
sdks/java/microbenchmarks/pom.xml | 110 +++++++++
.../coders/AvroCoderBenchmark.java | 121 ++++++++++
.../coders/ByteArrayCoderBenchmark.java | 66 +++++
.../coders/CoderBenchmarking.java | 42 ++++
.../coders/StringUtf8CoderBenchmark.java | 72 ++++++
.../transforms/DoFnReflectorBenchmark.java | 239 +++++++++++++++++++
sdks/java/pom.xml | 1 +
9 files changed, 699 insertions(+), 6 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/b36aeb92/sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/DoFnReflector.java
----------------------------------------------------------------------
diff --git a/sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/DoFnReflector.java b/sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/DoFnReflector.java
index 452ee8e..e711d04 100644
--- a/sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/DoFnReflector.java
+++ b/sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/DoFnReflector.java
@@ -123,7 +123,7 @@ public abstract class DoFnReflector {
* @param c the {@link org.apache.beam.sdk.transforms.DoFnWithContext.ProcessContext}
* to pass to {@link ProcessElement}.
*/
- abstract <InputT, OutputT> void invokeProcessElement(
+ public abstract <InputT, OutputT> void invokeProcessElement(
DoFnWithContext<InputT, OutputT> fn,
DoFnWithContext<InputT, OutputT>.ProcessContext c,
ExtraContextFactory<InputT, OutputT> extra);
@@ -135,7 +135,7 @@ public abstract class DoFnReflector {
* @param c the {@link org.apache.beam.sdk.transforms.DoFnWithContext.Context}
* to pass to {@link StartBundle}.
*/
- <InputT, OutputT> void invokeStartBundle(
+ public <InputT, OutputT> void invokeStartBundle(
DoFnWithContext<InputT, OutputT> fn,
DoFnWithContext<InputT, OutputT>.Context c,
ExtraContextFactory<InputT, OutputT> extra) {
@@ -149,7 +149,7 @@ public abstract class DoFnReflector {
* @param c the {@link org.apache.beam.sdk.transforms.DoFnWithContext.Context}
* to pass to {@link FinishBundle}.
*/
- abstract <InputT, OutputT> void invokeFinishBundle(
+ public abstract <InputT, OutputT> void invokeFinishBundle(
DoFnWithContext<InputT, OutputT> fn,
DoFnWithContext<InputT, OutputT>.Context c,
ExtraContextFactory<InputT, OutputT> extra);
@@ -430,7 +430,7 @@ public abstract class DoFnReflector {
}
@Override
- <InputT, OutputT> void invokeProcessElement(
+ public <InputT, OutputT> void invokeProcessElement(
DoFnWithContext<InputT, OutputT> fn,
DoFnWithContext<InputT, OutputT>.ProcessContext c,
ExtraContextFactory<InputT, OutputT> extra) {
@@ -438,7 +438,7 @@ public abstract class DoFnReflector {
}
@Override
- <InputT, OutputT> void invokeStartBundle(
+ public <InputT, OutputT> void invokeStartBundle(
DoFnWithContext<InputT, OutputT> fn,
DoFnWithContext<InputT, OutputT>.Context c,
ExtraContextFactory<InputT, OutputT> extra) {
@@ -449,7 +449,7 @@ public abstract class DoFnReflector {
}
@Override
- <InputT, OutputT> void invokeFinishBundle(
+ public <InputT, OutputT> void invokeFinishBundle(
DoFnWithContext<InputT, OutputT> fn,
DoFnWithContext<InputT, OutputT>.Context c,
ExtraContextFactory<InputT, OutputT> extra) {
http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/b36aeb92/sdks/java/microbenchmarks/README.md
----------------------------------------------------------------------
diff --git a/sdks/java/microbenchmarks/README.md b/sdks/java/microbenchmarks/README.md
new file mode 100644
index 0000000..627e669
--- /dev/null
+++ b/sdks/java/microbenchmarks/README.md
@@ -0,0 +1,42 @@
+<!--
+ 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.
+-->
+
+# Microbenchmarks for parts of the Beam SDK
+
+To run benchmarks:
+
+ 1. Run `mvn install` in the top directory to install the SDK.
+
+ 2. Build the benchmark package:
+
+ cd microbenchmarks
+ mvn package
+
+ 3. run benchmark harness:
+
+ java -jar target/microbenchmarks.jar
+
+ 4. (alternate to step 3)
+ to run just a subset of benchmarks, pass a regular expression that
+ matches the benchmarks you want to run (this can match against the class
+ name, or the method name). E.g., to run any benchmarks with
+ "DoFnReflector" in the name:
+
+ java -jar target/microbenchmarks.jar ".*DoFnReflector.*"
+
http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/b36aeb92/sdks/java/microbenchmarks/pom.xml
----------------------------------------------------------------------
diff --git a/sdks/java/microbenchmarks/pom.xml b/sdks/java/microbenchmarks/pom.xml
new file mode 100644
index 0000000..96a76ec
--- /dev/null
+++ b/sdks/java/microbenchmarks/pom.xml
@@ -0,0 +1,110 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ 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.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+
+ <modelVersion>4.0.0</modelVersion>
+
+ <parent>
+ <groupId>org.apache.beam</groupId>
+ <artifactId>beam-sdks-java-parent</artifactId>
+ <version>0.2.0-incubating-SNAPSHOT</version>
+ <relativePath>../pom.xml</relativePath>
+ </parent>
+
+ <artifactId>beam-sdks-java-microbenchmarks</artifactId>
+ <name>Apache Beam :: SDKs :: Java :: Microbenchmarks</name>
+ <description>Microbenchmarks for components in the Beam Java SDK.</description>
+ <packaging>jar</packaging>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-compiler-plugin</artifactId>
+ </plugin>
+
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-source-plugin</artifactId>
+ </plugin>
+
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-jar-plugin</artifactId>
+ </plugin>
+
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-checkstyle-plugin</artifactId>
+ </plugin>
+
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-shade-plugin</artifactId>
+ <executions>
+ <execution>
+ <phase>package</phase>
+ <goals>
+ <goal>shade</goal>
+ </goals>
+ <configuration>
+ <finalName>microbenchmarks</finalName>
+ <transformers>
+ <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+ <mainClass>org.openjdk.jmh.Main</mainClass>
+ </transformer>
+ </transformers>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
+ </plugins>
+ </build>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.apache.beam</groupId>
+ <artifactId>beam-sdks-java-core</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>joda-time</groupId>
+ <artifactId>joda-time</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>org.slf4j</groupId>
+ <artifactId>slf4j-jdk14</artifactId>
+ <!-- When loaded at runtime this will wire up slf4j to the JUL backend -->
+ <scope>runtime</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>org.openjdk.jmh</groupId>
+ <artifactId>jmh-core</artifactId>
+ <version>1.0.1</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.openjdk.jmh</groupId>
+ <artifactId>jmh-generator-annprocess</artifactId>
+ <version>1.6.1</version>
+ <scope>provided</scope>
+ </dependency>
+ </dependencies>
+</project>
http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/b36aeb92/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/AvroCoderBenchmark.java
----------------------------------------------------------------------
diff --git a/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/AvroCoderBenchmark.java b/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/AvroCoderBenchmark.java
new file mode 100644
index 0000000..39b31ef
--- /dev/null
+++ b/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/AvroCoderBenchmark.java
@@ -0,0 +1,121 @@
+/*
+ * 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.beam.sdk.microbenchmarks.coders;
+
+import org.apache.beam.sdk.coders.AvroCoder;
+import org.apache.beam.sdk.coders.DefaultCoder;
+
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.Fork;
+import org.openjdk.jmh.annotations.Param;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.Warmup;
+
+import java.io.IOException;
+import java.util.Arrays;
+
+/**
+ * Benchmarks for {@link AvroCoder}.
+ */
+@State(Scope.Benchmark)
+@Fork(1)
+@Warmup(iterations = 5)
+public class AvroCoderBenchmark {
+
+ @DefaultCoder(AvroCoder.class)
+ private static class Pojo {
+ public String text;
+ public int count;
+
+ // Empty constructor required for Avro decoding.
+ @SuppressWarnings("unused")
+ public Pojo() {
+ }
+
+ public Pojo(String text, int count) {
+ this.text = text;
+ this.count = count;
+ }
+
+ // auto-generated
+ @Override
+ public boolean equals(Object o) {
+ if (this == o) {
+ return true;
+ }
+ if (o == null || getClass() != o.getClass()) {
+ return false;
+ }
+
+ Pojo pojo = (Pojo) o;
+
+ if (count != pojo.count) {
+ return false;
+ }
+ if (text != null
+ ? !text.equals(pojo.text)
+ : pojo.text != null) {
+ return false;
+ }
+
+ return true;
+ }
+
+ @Override
+ public int hashCode() {
+ return 0;
+ }
+
+ @Override
+ public String toString() {
+ return "Pojo{"
+ + "text='" + text + '\''
+ + ", count=" + count
+ + '}';
+ }
+ }
+
+ AvroCoder<Pojo> coder = AvroCoder.of(Pojo.class);
+
+ @Param({"true", "false"})
+ boolean isWholeStream;
+
+ Pojo shortPojo;
+ Pojo longPojo;
+
+ @Setup
+ public void setUp() {
+ shortPojo = new Pojo("hello world", 42);
+
+ char[] bytes60k = new char[60 * 1024];
+ Arrays.fill(bytes60k, 'a');
+ longPojo = new Pojo(new String(bytes60k), 42);
+ }
+
+ @Benchmark
+ public Pojo codeShortPojo() throws IOException {
+ return CoderBenchmarking.testCoder(coder, isWholeStream, shortPojo);
+ }
+
+ @Benchmark
+ public Pojo codeLongPojo() throws Exception {
+ return CoderBenchmarking.testCoder(coder, isWholeStream, longPojo);
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/b36aeb92/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/ByteArrayCoderBenchmark.java
----------------------------------------------------------------------
diff --git a/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/ByteArrayCoderBenchmark.java b/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/ByteArrayCoderBenchmark.java
new file mode 100644
index 0000000..df20a15
--- /dev/null
+++ b/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/ByteArrayCoderBenchmark.java
@@ -0,0 +1,66 @@
+/*
+ * 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.beam.sdk.microbenchmarks.coders;
+
+import org.apache.beam.sdk.coders.ByteArrayCoder;
+
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.Fork;
+import org.openjdk.jmh.annotations.Param;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.Warmup;
+
+import java.io.IOException;
+import java.util.Arrays;
+
+/**
+ * Benchmarks for {@link ByteArrayCoder}.
+ */
+@State(Scope.Benchmark)
+@Fork(1)
+@Warmup(iterations = 5)
+public class ByteArrayCoderBenchmark {
+
+ ByteArrayCoder coder = ByteArrayCoder.of();
+
+ @Param({"true", "false"})
+ boolean isWholeStream;
+
+ byte[] shortArray;
+ byte[] longArray;
+
+ @Setup
+ public void setUp() {
+ shortArray = new byte[10];
+ Arrays.fill(shortArray, (byte) 47);
+ longArray = new byte[60 * 1024];
+ Arrays.fill(longArray, (byte) 47);
+ }
+
+ @Benchmark
+ public byte[] codeShortArray() throws IOException {
+ return CoderBenchmarking.testCoder(coder, isWholeStream, shortArray);
+ }
+
+ @Benchmark
+ public byte[] codeLongArray() throws Exception {
+ return CoderBenchmarking.testCoder(coder, isWholeStream, longArray);
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/b36aeb92/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/CoderBenchmarking.java
----------------------------------------------------------------------
diff --git a/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/CoderBenchmarking.java b/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/CoderBenchmarking.java
new file mode 100644
index 0000000..8523cb2
--- /dev/null
+++ b/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/CoderBenchmarking.java
@@ -0,0 +1,42 @@
+/*
+ * 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.beam.sdk.microbenchmarks.coders;
+
+import org.apache.beam.sdk.coders.Coder;
+import org.apache.beam.sdk.util.CoderUtils;
+
+import java.io.IOException;
+
+/**
+ * Utilities for writing coder benchmarks.
+ */
+class CoderBenchmarking {
+
+ /**
+ * Encodes and decodes the given value using the specified Coder.
+ *
+ * @throws IOException if there are errors during encoding or decoding
+ */
+ public static <T> T testCoder(
+ Coder<T> coder, boolean isWholeStream, T value) throws IOException {
+ Coder.Context context =
+ isWholeStream ? Coder.Context.OUTER : Coder.Context.NESTED;
+ byte[] encoded = CoderUtils.encodeToByteArray(coder, value, context);
+ return CoderUtils.decodeFromByteArray(coder, encoded, context);
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/b36aeb92/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/StringUtf8CoderBenchmark.java
----------------------------------------------------------------------
diff --git a/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/StringUtf8CoderBenchmark.java b/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/StringUtf8CoderBenchmark.java
new file mode 100644
index 0000000..c0bcb45
--- /dev/null
+++ b/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/coders/StringUtf8CoderBenchmark.java
@@ -0,0 +1,72 @@
+/*
+ * 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.beam.sdk.microbenchmarks.coders;
+
+import org.apache.beam.sdk.coders.StringUtf8Coder;
+
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.Fork;
+import org.openjdk.jmh.annotations.Param;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.Warmup;
+
+import java.io.IOException;
+import java.util.Arrays;
+
+/**
+ * Benchmarks for {@link StringUtf8Coder}.
+ */
+@State(Scope.Benchmark)
+@Fork(1)
+@Warmup(iterations = 5)
+public class StringUtf8CoderBenchmark {
+
+ StringUtf8Coder coder = StringUtf8Coder.of();
+
+ @Param({"true", "false"})
+ boolean isWholeStream;
+
+ String shortString;
+ String longString;
+
+ @Setup
+ public void setUp() {
+ shortString = "hello world";
+
+ char[] bytes60k = new char[60 * 1024];
+ Arrays.fill(bytes60k, 'a');
+ longString = new String(bytes60k);
+ }
+
+ @Benchmark
+ public String codeEmptyString() throws IOException {
+ return CoderBenchmarking.testCoder(coder, isWholeStream, "");
+ }
+
+ @Benchmark
+ public String codeShortString() throws IOException {
+ return CoderBenchmarking.testCoder(coder, isWholeStream, shortString);
+ }
+
+ @Benchmark
+ public String codeLongString() throws IOException {
+ return CoderBenchmarking.testCoder(coder, isWholeStream, longString);
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/b36aeb92/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/transforms/DoFnReflectorBenchmark.java
----------------------------------------------------------------------
diff --git a/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/transforms/DoFnReflectorBenchmark.java b/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/transforms/DoFnReflectorBenchmark.java
new file mode 100644
index 0000000..1b8ec2a
--- /dev/null
+++ b/sdks/java/microbenchmarks/src/main/java/org/apache/beam/sdk/microbenchmarks/transforms/DoFnReflectorBenchmark.java
@@ -0,0 +1,239 @@
+/*
+ * 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.beam.sdk.microbenchmarks.transforms;
+
+import org.apache.beam.sdk.options.PipelineOptions;
+import org.apache.beam.sdk.transforms.Aggregator;
+import org.apache.beam.sdk.transforms.Combine.CombineFn;
+import org.apache.beam.sdk.transforms.DoFn;
+import org.apache.beam.sdk.transforms.DoFnReflector;
+import org.apache.beam.sdk.transforms.DoFnWithContext;
+import org.apache.beam.sdk.transforms.DoFnWithContext.ExtraContextFactory;
+import org.apache.beam.sdk.transforms.windowing.BoundedWindow;
+import org.apache.beam.sdk.transforms.windowing.PaneInfo;
+import org.apache.beam.sdk.util.WindowingInternals;
+import org.apache.beam.sdk.values.PCollectionView;
+import org.apache.beam.sdk.values.TupleTag;
+
+import org.joda.time.Instant;
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.Fork;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.Warmup;
+
+/**
+ * Benchmarks for {@link DoFn} and {@link DoFnWithContext} invocations, specifically
+ * for measuring the overhead of {@link DoFnReflector}.
+ */
+@State(Scope.Benchmark)
+@Fork(1)
+@Warmup(iterations = 5)
+public class DoFnReflectorBenchmark {
+
+ private static final String ELEMENT = "some string to use for testing";
+
+ private DoFn<String, String> doFn = new UpperCaseDoFn();
+ private DoFnWithContext<String, String> doFnWithContext = new UpperCaseDoFnWithContext();
+
+ private StubDoFnProcessContext stubDoFnContext = new StubDoFnProcessContext(doFn, ELEMENT);
+ private StubDoFnWithContextProcessContext stubDoFnWithContextContext =
+ new StubDoFnWithContextProcessContext(doFnWithContext, ELEMENT);
+ private ExtraContextFactory<String, String> extraContextFactory =
+ new ExtraContextFactory<String, String>() {
+
+ @Override
+ public BoundedWindow window() {
+ return null;
+ }
+
+ @Override
+ public WindowingInternals<String, String> windowingInternals() {
+ return null;
+ }
+ };
+
+ private DoFnReflector doFnReflector;
+ private DoFn<String, String> adaptedDoFnWithContext;
+
+ @Setup
+ public void setUp() {
+ doFnReflector = DoFnReflector.of(doFnWithContext.getClass());
+ adaptedDoFnWithContext = doFnReflector.toDoFn(doFnWithContext);
+ }
+
+ @Benchmark
+ public String invokeDoFn() throws Exception {
+ doFn.processElement(stubDoFnContext);
+ return stubDoFnContext.output;
+ }
+
+ @Benchmark
+ public String invokeDoFnWithContextViaAdaptor() throws Exception {
+ adaptedDoFnWithContext.processElement(stubDoFnContext);
+ return stubDoFnContext.output;
+ }
+
+ @Benchmark
+ public String invokeDoFnWithContext() throws Exception {
+ doFnReflector.invokeProcessElement(
+ doFnWithContext, stubDoFnWithContextContext, extraContextFactory);
+ return stubDoFnWithContextContext.output;
+ }
+
+ private static class UpperCaseDoFn extends DoFn<String, String> {
+
+ @Override
+ public void processElement(ProcessContext c) throws Exception {
+ c.output(c.element().toUpperCase());
+ }
+ }
+
+ private static class UpperCaseDoFnWithContext extends DoFnWithContext<String, String> {
+
+ @ProcessElement
+ public void processElement(ProcessContext c) throws Exception {
+ c.output(c.element().toUpperCase());
+ }
+ }
+
+ private static class StubDoFnProcessContext extends DoFn<String, String>.ProcessContext {
+
+ private final String element;
+ private String output;
+
+ public StubDoFnProcessContext(DoFn<String, String> fn, String element) {
+ fn.super();
+ this.element = element;
+ }
+
+ @Override
+ public String element() {
+ return element;
+ }
+
+ @Override
+ public <T> T sideInput(PCollectionView<T> view) {
+ return null;
+ }
+
+ @Override
+ public Instant timestamp() {
+ return null;
+ }
+
+ @Override
+ public BoundedWindow window() {
+ return null;
+ }
+
+ @Override
+ public PaneInfo pane() {
+ return null;
+ }
+
+ @Override
+ public WindowingInternals<String, String> windowingInternals() {
+ return null;
+ }
+
+ @Override
+ public PipelineOptions getPipelineOptions() {
+ return null;
+ }
+
+ @Override
+ public void output(String output) {
+ this.output = output;
+ }
+
+ @Override
+ public void outputWithTimestamp(String output, Instant timestamp) {
+ output(output);
+ }
+
+ @Override
+ public <T> void sideOutput(TupleTag<T> tag, T output) {
+ }
+
+ @Override
+ public <T> void sideOutputWithTimestamp(TupleTag<T> tag, T output, Instant timestamp) {
+ }
+
+ @Override
+ protected <AggInputT, AggOutputT> Aggregator<AggInputT, AggOutputT>
+ createAggregatorInternal(String name, CombineFn<AggInputT, ?, AggOutputT> combiner) {
+ return null;
+ }
+ }
+
+ private static class StubDoFnWithContextProcessContext
+ extends DoFnWithContext<String, String>.ProcessContext {
+ private final String element;
+ private String output;
+
+ public StubDoFnWithContextProcessContext(DoFnWithContext<String, String> fn, String element) {
+ fn.super();
+ this.element = element;
+ }
+
+ @Override
+ public String element() {
+ return element;
+ }
+
+ @Override
+ public <T> T sideInput(PCollectionView<T> view) {
+ return null;
+ }
+
+ @Override
+ public Instant timestamp() {
+ return null;
+ }
+
+ @Override
+ public PaneInfo pane() {
+ return null;
+ }
+
+ @Override
+ public PipelineOptions getPipelineOptions() {
+ return null;
+ }
+
+ @Override
+ public void output(String output) {
+ this.output = output;
+ }
+
+ @Override
+ public void outputWithTimestamp(String output, Instant timestamp) {
+ output(output);
+ }
+
+ @Override
+ public <T> void sideOutput(TupleTag<T> tag, T output) {
+ }
+
+ @Override
+ public <T> void sideOutputWithTimestamp(TupleTag<T> tag, T output, Instant timestamp) {
+ }
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/b36aeb92/sdks/java/pom.xml
----------------------------------------------------------------------
diff --git a/sdks/java/pom.xml b/sdks/java/pom.xml
index 55aea6a..0350804 100644
--- a/sdks/java/pom.xml
+++ b/sdks/java/pom.xml
@@ -41,6 +41,7 @@
a released artifact exists, we need to modify the build order.
<module>maven-archetypes</module> -->
<module>extensions</module>
+ <module>microbenchmarks</module>
</modules>
<profiles>