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test PR apache#498 (take 1) (apache#501)
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.../src/test/scala/org/apache/spark/shuffle/sort/BypassMergeSortShuffleWriterBenchmark.scala
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| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.spark.shuffle.sort | ||
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| import java.io.File | ||
| import java.util.UUID | ||
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| import org.apache.commons.io.FileUtils | ||
| import org.mockito.{Mock, MockitoAnnotations} | ||
| import org.mockito.Answers.RETURNS_SMART_NULLS | ||
| import org.mockito.Matchers.{any, anyInt} | ||
| import org.mockito.Mockito.{doAnswer, when} | ||
| import org.mockito.invocation.InvocationOnMock | ||
| import org.mockito.stubbing.Answer | ||
| import scala.collection.mutable | ||
| import scala.util.Random | ||
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| import org.apache.spark.{HashPartitioner, ShuffleDependency, SparkConf, TaskContext} | ||
| import org.apache.spark.benchmark.{Benchmark, BenchmarkBase} | ||
| import org.apache.spark.executor.{ShuffleWriteMetrics, TaskMetrics} | ||
| import org.apache.spark.serializer.{JavaSerializer, SerializerInstance, SerializerManager} | ||
| import org.apache.spark.shuffle.IndexShuffleBlockResolver | ||
| import org.apache.spark.storage.{BlockId, BlockManager, DiskBlockManager, DiskBlockObjectWriter, TempShuffleBlockId} | ||
| import org.apache.spark.util.Utils | ||
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| /** | ||
| * Benchmark to measure performance for aggregate primitives. | ||
| * {{{ | ||
| * To run this benchmark: | ||
| * 1. without sbt: bin/spark-submit --class <this class> <spark sql test jar> | ||
| * 2. build/sbt "sql/test:runMain <this class>" | ||
| * 3. generate result: SPARK_GENERATE_BENCHMARK_FILES=1 build/sbt "sql/test:runMain <this class>" | ||
| * Results will be written to "benchmarks/<this class>-results.txt". | ||
| * }}} | ||
| */ | ||
| object BypassMergeSortShuffleWriterBenchmark extends BenchmarkBase { | ||
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| @Mock(answer = RETURNS_SMART_NULLS) private var blockManager: BlockManager = _ | ||
| @Mock(answer = RETURNS_SMART_NULLS) private var diskBlockManager: DiskBlockManager = _ | ||
| @Mock(answer = RETURNS_SMART_NULLS) private var taskContext: TaskContext = _ | ||
| @Mock(answer = RETURNS_SMART_NULLS) private var blockResolver: IndexShuffleBlockResolver = _ | ||
| @Mock(answer = RETURNS_SMART_NULLS) private var dependency: | ||
| ShuffleDependency[String, String, String] = _ | ||
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| private var tempDir: File = _ | ||
| private var shuffleHandle: BypassMergeSortShuffleHandle[String, String] = _ | ||
| private val blockIdToFileMap: mutable.Map[BlockId, File] = new mutable.HashMap[BlockId, File] | ||
| private val partitioner: HashPartitioner = new HashPartitioner(10) | ||
| private val defaultConf: SparkConf = new SparkConf(loadDefaults = false) | ||
| private val javaSerializer: JavaSerializer = new JavaSerializer(defaultConf) | ||
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| private val MIN_NUM_ITERS = 10 | ||
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| def setup(transferTo: Boolean): BypassMergeSortShuffleWriter[String, String] = { | ||
| MockitoAnnotations.initMocks(this) | ||
| val conf = new SparkConf(loadDefaults = false) | ||
| conf.set("spark.file.transferTo", String.valueOf(transferTo)) | ||
| conf.set("spark.shuffle.file.buffer", "32k") | ||
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| if (shuffleHandle == null) { | ||
| shuffleHandle = new BypassMergeSortShuffleHandle[String, String]( | ||
| shuffleId = 0, | ||
| numMaps = 1, | ||
| dependency = dependency | ||
| ) | ||
| } | ||
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| val taskMetrics = new TaskMetrics | ||
| when(dependency.partitioner).thenReturn(partitioner) | ||
| when(dependency.serializer).thenReturn(javaSerializer) | ||
| when(dependency.shuffleId).thenReturn(0) | ||
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| // Create the temporary directory to write local shuffle and temp files | ||
| tempDir = Utils.createTempDir() | ||
| val outputFile = File.createTempFile("shuffle", null, tempDir) | ||
| // Final mapper data file output | ||
| when(blockResolver.getDataFile(0, 0)).thenReturn(outputFile) | ||
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| // Create the temporary writers (backed by files), one for each partition. | ||
| when(blockManager.diskBlockManager).thenReturn(diskBlockManager) | ||
| when(diskBlockManager.createTempShuffleBlock()).thenAnswer( | ||
| (invocation: InvocationOnMock) => { | ||
| val blockId = new TempShuffleBlockId(UUID.randomUUID) | ||
| val file = new File(tempDir, blockId.name) | ||
| blockIdToFileMap.put(blockId, file) | ||
| (blockId, file) | ||
| }) | ||
| when(blockManager.getDiskWriter( | ||
| any[BlockId], | ||
| any[File], | ||
| any[SerializerInstance], | ||
| anyInt(), | ||
| any[ShuffleWriteMetrics] | ||
| )).thenAnswer(new Answer[DiskBlockObjectWriter] { | ||
| override def answer(invocation: InvocationOnMock): DiskBlockObjectWriter = { | ||
| val args = invocation.getArguments | ||
| val manager = new SerializerManager(javaSerializer, conf) | ||
| new DiskBlockObjectWriter( | ||
| args(1).asInstanceOf[File], | ||
| manager, | ||
| args(2).asInstanceOf[SerializerInstance], | ||
| args(3).asInstanceOf[Int], | ||
| syncWrites = false, | ||
| args(4).asInstanceOf[ShuffleWriteMetrics], | ||
| blockId = args(0).asInstanceOf[BlockId] | ||
| ) | ||
| } | ||
| }) | ||
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| // writing the index file | ||
| doAnswer(new Answer[Void] { | ||
| def answer(invocationOnMock: InvocationOnMock): Void = { | ||
| val tmp: File = invocationOnMock.getArguments()(3).asInstanceOf[File] | ||
| if (tmp != null) { | ||
| outputFile.delete | ||
| tmp.renameTo(outputFile) | ||
| } | ||
| null | ||
| } | ||
| }).when(blockResolver) | ||
| .writeIndexFileAndCommit(anyInt, anyInt, any(classOf[Array[Long]]), any(classOf[File])) | ||
| when(blockManager.diskBlockManager).thenReturn(diskBlockManager) | ||
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| val shuffleWriter = new BypassMergeSortShuffleWriter[String, String]( | ||
| blockManager, | ||
| blockResolver, | ||
| shuffleHandle, | ||
| 0, | ||
| conf, | ||
| taskMetrics.shuffleWriteMetrics | ||
| ) | ||
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| shuffleWriter | ||
| } | ||
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| def cleanupTempFiles(): Unit = { | ||
| FileUtils.deleteDirectory(tempDir) | ||
| } | ||
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| def writeBenchmarkWithLargeDataset(): Unit = { | ||
| val size = 10000000 | ||
| val random = new Random(123) | ||
| val data = (1 to size).map { i => { | ||
| val x = random.alphanumeric.take(5).mkString | ||
| Tuple2(x, x) | ||
| } }.toArray | ||
| val benchmark = new Benchmark( | ||
| "BypassMergeSortShuffleWrite (with spill) " + size, | ||
| size, | ||
| minNumIters = MIN_NUM_ITERS, | ||
| output = output) | ||
| benchmark.addTimerCase("without transferTo") { timer => | ||
| val shuffleWriter = setup(false) | ||
| timer.startTiming() | ||
| shuffleWriter.write(data.iterator) | ||
| timer.stopTiming() | ||
| cleanupTempFiles() | ||
| } | ||
| benchmark.addTimerCase("with transferTo") { timer => | ||
| val shuffleWriter = setup(true) | ||
| timer.startTiming() | ||
| shuffleWriter.write(data.iterator) | ||
| timer.stopTiming() | ||
| cleanupTempFiles() | ||
| } | ||
| benchmark.run() | ||
| } | ||
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| def writeBenchmarkWithSmallDataset(): Unit = { | ||
| val size = 10000 | ||
| val random = new Random(123) | ||
| val data = (1 to size).map { i => { | ||
| val x = random.alphanumeric.take(5).mkString | ||
| Tuple2(x, x) | ||
| } }.toArray | ||
| val benchmark = new Benchmark("BypassMergeSortShuffleWrite (in memory buffer) " + size, | ||
| size, | ||
| minNumIters = MIN_NUM_ITERS, | ||
| output = output) | ||
| benchmark.addTimerCase("small dataset without spills on disk") { timer => | ||
| val shuffleWriter = setup(false) | ||
| timer.startTiming() | ||
| shuffleWriter.write(data.iterator) | ||
| timer.stopTiming() | ||
| cleanupTempFiles() | ||
| } | ||
| benchmark.run() | ||
| } | ||
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| override def runBenchmarkSuite(mainArgs: Array[String]): Unit = { | ||
| runBenchmark("BypassMergeSortShuffleWriter write") { | ||
| writeBenchmarkWithSmallDataset() | ||
| writeBenchmarkWithLargeDataset() | ||
| } | ||
| } | ||
| } |
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