| /** |
| * 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 com.datatorrent.benchmark.util.serde; |
| |
| import java.util.Random; |
| |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.apex.malhar.lib.utils.serde.GenericSerde; |
| import org.apache.apex.malhar.lib.utils.serde.Serde; |
| import org.apache.apex.malhar.lib.utils.serde.SerializationBuffer; |
| import org.apache.apex.malhar.lib.utils.serde.StringSerde; |
| import org.apache.apex.malhar.lib.window.Window; |
| import org.apache.commons.lang3.tuple.ImmutablePair; |
| |
| import com.esotericsoftware.kryo.Kryo; |
| |
| public class GenericSerdePerformanceTest |
| { |
| private static final transient Logger logger = LoggerFactory.getLogger(GenericSerdePerformanceTest.class); |
| private SerializationBuffer buffer = SerializationBuffer.READ_BUFFER; |
| private Random random = new Random(); |
| private int serdeDataSize = 1000000; |
| |
| @Test |
| public void testCompareSerdeForString() |
| { |
| long beginTime = System.currentTimeMillis(); |
| testSerdeForString(new GenericSerde<String>(String.class)); |
| long genericSerdeCost = System.currentTimeMillis() - beginTime; |
| logger.info("Generic Serde cost for String: {}", genericSerdeCost); |
| |
| beginTime = System.currentTimeMillis(); |
| testSerdeForString(new StringSerde()); |
| long stringSerdeCost = System.currentTimeMillis() - beginTime; |
| logger.info("String Serde cost for String: {}", stringSerdeCost); |
| |
| beginTime = System.currentTimeMillis(); |
| Kryo kryo = new Kryo(); |
| for (int i = 0; i < serdeDataSize; ++i) { |
| kryo.writeObject(buffer, "" + random.nextInt(1000)); |
| buffer.toSlice(); |
| } |
| buffer.release(); |
| long kryoSerdeCost = System.currentTimeMillis() - beginTime; |
| logger.info("Kryo Serde cost for String: {}", kryoSerdeCost); |
| } |
| |
| protected void testSerdeForString(Serde<String> serde) |
| { |
| for (int i = 0; i < serdeDataSize; ++i) { |
| serde.serialize("" + random.nextInt(1000), buffer); |
| buffer.toSlice(); |
| } |
| buffer.release(); |
| } |
| |
| @Test |
| public void testCompareSerdeForRealCase() |
| { |
| long beginTime = System.currentTimeMillis(); |
| GenericSerde<ImmutablePair> serde = new GenericSerde<ImmutablePair>(); |
| for (int i = 0; i < serdeDataSize; ++i) { |
| serde.serialize(generatePair(beginTime), buffer); |
| buffer.toSlice(); |
| } |
| buffer.release(); |
| long genericSerdeCost = System.currentTimeMillis() - beginTime; |
| logger.info("Generic Serde cost for ImmutablePair: {}", genericSerdeCost); |
| |
| beginTime = System.currentTimeMillis(); |
| Kryo kryo = new Kryo(); |
| for (int i = 0; i < serdeDataSize; ++i) { |
| kryo.writeObject(buffer, generatePair(beginTime)); |
| buffer.toSlice(); |
| } |
| buffer.release(); |
| long kryoSerdeCost = System.currentTimeMillis() - beginTime; |
| logger.info("Kryo Serde cost for ImmutablePair without class info: {}", kryoSerdeCost); |
| |
| beginTime = System.currentTimeMillis(); |
| Kryo kryo1 = new Kryo(); |
| for (int i = 0; i < serdeDataSize; ++i) { |
| kryo1.writeClassAndObject(buffer, generatePair(beginTime)); |
| buffer.toSlice(); |
| } |
| buffer.release(); |
| long kryoSerdeCost2 = System.currentTimeMillis() - beginTime; |
| logger.info("Kryo Serde cost for ImmutablePair with class info: {}", kryoSerdeCost2); |
| } |
| |
| protected ImmutablePair generatePair(long now) |
| { |
| return new ImmutablePair(new Window.TimeWindow(now + random.nextInt(100), |
| random.nextInt(100)), "" + random.nextInt(1000)); |
| } |
| } |