pnowojski commented on a change in pull request #3: URL: https://github.com/apache/flink-benchmarks/pull/3#discussion_r480893656
########## File path: src/main/java/org/apache/flink/benchmark/MultipleInputBenchmark.java ########## @@ -0,0 +1,161 @@ +/* + * 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.flink.benchmark; + +import org.apache.flink.api.common.restartstrategy.RestartStrategies; +import org.apache.flink.api.common.typeinfo.BasicTypeInfo; +import org.apache.flink.benchmark.functions.LongSource; +import org.apache.flink.benchmark.functions.QueuingLongSource; +import org.apache.flink.streaming.api.datastream.DataStreamSource; +import org.apache.flink.streaming.api.datastream.MultipleConnectedStreams; +import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; +import org.apache.flink.streaming.api.functions.sink.DiscardingSink; +import org.apache.flink.streaming.api.operators.AbstractInput; +import org.apache.flink.streaming.api.operators.AbstractStreamOperatorFactory; +import org.apache.flink.streaming.api.operators.AbstractStreamOperatorV2; +import org.apache.flink.streaming.api.operators.Input; +import org.apache.flink.streaming.api.operators.MultipleInputStreamOperator; +import org.apache.flink.streaming.api.operators.StreamOperator; +import org.apache.flink.streaming.api.operators.StreamOperatorParameters; +import org.apache.flink.streaming.api.transformations.MultipleInputTransformation; +import org.apache.flink.streaming.runtime.streamrecord.StreamRecord; + +import org.openjdk.jmh.annotations.Benchmark; +import org.openjdk.jmh.annotations.OperationsPerInvocation; +import org.openjdk.jmh.runner.Runner; +import org.openjdk.jmh.runner.RunnerException; +import org.openjdk.jmh.runner.options.Options; +import org.openjdk.jmh.runner.options.OptionsBuilder; +import org.openjdk.jmh.runner.options.VerboseMode; + +import java.util.Arrays; +import java.util.List; + +public class MultipleInputBenchmark extends BenchmarkBase { + + public static final int RECORDS_PER_INVOCATION = TwoInputBenchmark.RECORDS_PER_INVOCATION; + public static final int ONE_IDLE_RECORDS_PER_INVOCATION = TwoInputBenchmark.ONE_IDLE_RECORDS_PER_INVOCATION; + public static final long CHECKPOINT_INTERVAL_MS = TwoInputBenchmark.CHECKPOINT_INTERVAL_MS; + + public static void main(String[] args) + throws RunnerException { + Options options = new OptionsBuilder() + .verbosity(VerboseMode.NORMAL) + .include(".*" + MultipleInputBenchmark.class.getSimpleName() + ".*") + .build(); + + new Runner(options).run(); + } + + @Benchmark + @OperationsPerInvocation(RECORDS_PER_INVOCATION) + public void multiInputMapSink(FlinkEnvironmentContext context) throws Exception { + + StreamExecutionEnvironment env = context.env; + + env.enableCheckpointing(CHECKPOINT_INTERVAL_MS); + env.setParallelism(1); + env.setRestartStrategy(RestartStrategies.noRestart()); + + // Setting buffer timeout to 1 is an attempt to improve twoInputMapSink benchmark stability. + // Without 1ms buffer timeout, some JVM forks are much slower then others, making results + // unstable and unreliable. + env.setBufferTimeout(1); + + long numRecordsPerInput = RECORDS_PER_INVOCATION / 2; + DataStreamSource<Long> source1 = env.addSource(new LongSource(numRecordsPerInput)); + DataStreamSource<Long> source2 = env.addSource(new LongSource(numRecordsPerInput)); + connectAndDiscard(env, source1, source2); + + env.execute(); + } + + @Benchmark + @OperationsPerInvocation(ONE_IDLE_RECORDS_PER_INVOCATION) + public void multiInputOneIdleMapSink(FlinkEnvironmentContext context) throws Exception { + + StreamExecutionEnvironment env = context.env; + env.enableCheckpointing(CHECKPOINT_INTERVAL_MS); + env.setParallelism(1); + + QueuingLongSource.reset(); + DataStreamSource<Long> source1 = env.addSource(new QueuingLongSource(1, ONE_IDLE_RECORDS_PER_INVOCATION - 1)); + DataStreamSource<Long> source2 = env.addSource(new QueuingLongSource(2, 1)); + connectAndDiscard(env, source1, source2); + + env.execute(); + } + + private void connectAndDiscard( + StreamExecutionEnvironment env, + DataStreamSource<Long> source1, + DataStreamSource<Long> source2) { + MultipleInputTransformation<Long> transform = new MultipleInputTransformation<>( + "custom operator", + new MultiplyByTwoOperatorFactory(), + BasicTypeInfo.LONG_TYPE_INFO, + 1); + + transform.addInput(source1.getTransformation()); + transform.addInput(source2.getTransformation()); + + env.addOperator(transform); + new MultipleConnectedStreams(env) + .transform(transform) + .addSink(new DiscardingSink<>()); + } + + public static class MultiplyByTwoOperatorFactory extends AbstractStreamOperatorFactory<Long> { + @Override + public <T extends StreamOperator<Long>> T createStreamOperator(StreamOperatorParameters<Long> parameters) { + return (T) new MultiplyByTwoOperator(parameters); + } + + @Override + public Class<? extends StreamOperator> getStreamOperatorClass(ClassLoader classLoader) { + return MultiplyByTwoOperator.class; + } + } + + public static class MultiplyByTwoOperator extends AbstractStreamOperatorV2<Long> implements MultipleInputStreamOperator<Long> { + public MultiplyByTwoOperator(StreamOperatorParameters<Long> parameters) { + super(parameters, 2); + } + + @Override + public List<Input> getInputs() { + return Arrays.asList( + new MultiplyByTwoInput(this, 1), + new MultiplyByTwoInput(this, 2)); + } + + private class MultiplyByTwoInput extends AbstractInput<Long, Long> { + public MultiplyByTwoInput( + AbstractStreamOperatorV2<Long> owner, + int inputId) { + super(owner, inputId); + } + + @Override + public void processElement(StreamRecord<Long> element) { + output.collect(element.replace(element.getValue() * 2)); Review comment: Object reuse is enabled by default in the benchmarks (`FlinkEnvironmentContext`). ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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