rkhachatryan commented on a change in pull request #3: URL: https://github.com/apache/flink-benchmarks/pull/3#discussion_r480330566
########## 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> { Review comment: I see. I would extract it to a separate file then (nit). ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org