| /* |
| * 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.extensions.sorter; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.charset.Charset; |
| import java.nio.file.Files; |
| import java.util.UUID; |
| import org.apache.beam.sdk.extensions.sorter.ExternalSorter.Options.SorterType; |
| import org.apache.beam.sdk.values.KV; |
| |
| /** {@link ExternalSorter} benchmarks. */ |
| public class ExternalSorterBenchmark { |
| private static final int N = 1000 * 1000; // 1m * (36 * 2) ~= 72MB per 1 million KVs |
| |
| public static void main(String[] args) throws IOException { |
| File tempDirectory = Files.createTempDirectory("sorter").toFile(); |
| tempDirectory.deleteOnExit(); |
| |
| ExternalSorter.Options options = |
| new ExternalSorter.Options().setMemoryMB(32).setTempLocation(tempDirectory.toString()); |
| |
| options.setSorterType(SorterType.HADOOP); |
| benchmark(ExternalSorter.create(options)); |
| |
| options.setSorterType(SorterType.NATIVE); |
| benchmark(ExternalSorter.create(options)); |
| } |
| |
| private static void benchmark(Sorter sorter) throws IOException { |
| long start = System.currentTimeMillis(); |
| for (int i = 0; i < N; i++) { |
| sorter.add( |
| KV.of( |
| UUID.randomUUID().toString().getBytes(Charset.defaultCharset()), |
| UUID.randomUUID().toString().getBytes(Charset.defaultCharset()))); |
| } |
| int i = 0; |
| for (KV<byte[], byte[]> ignored : sorter.sort()) { |
| i++; |
| } |
| long end = System.currentTimeMillis(); |
| System.out.println( |
| String.format("%s: %fs", sorter.getClass().getSimpleName(), (end - start) / 1000.0)); |
| } |
| } |