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Optimize in clause evaluation (#11557)
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pinot-perf/src/main/java/org/apache/pinot/perf/BenchmarkDictionaryLookup.java
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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. | ||
| */ | ||
| package org.apache.pinot.perf; | ||
|
|
||
| import it.unimi.dsi.fastutil.ints.IntOpenHashSet; | ||
| import it.unimi.dsi.fastutil.ints.IntSet; | ||
| import java.io.File; | ||
| import java.io.IOException; | ||
| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.HashSet; | ||
| import java.util.List; | ||
| import java.util.Set; | ||
| import java.util.concurrent.TimeUnit; | ||
| import org.apache.commons.io.FileUtils; | ||
| import org.apache.commons.lang.RandomStringUtils; | ||
| import org.apache.pinot.segment.local.segment.creator.impl.SegmentDictionaryCreator; | ||
| import org.apache.pinot.segment.local.segment.index.readers.StringDictionary; | ||
| import org.apache.pinot.segment.spi.V1Constants; | ||
| import org.apache.pinot.segment.spi.index.reader.Dictionary; | ||
| import org.apache.pinot.segment.spi.memory.PinotDataBuffer; | ||
| import org.apache.pinot.spi.data.DimensionFieldSpec; | ||
| import org.apache.pinot.spi.data.FieldSpec.DataType; | ||
| import org.openjdk.jmh.annotations.Benchmark; | ||
| import org.openjdk.jmh.annotations.BenchmarkMode; | ||
| import org.openjdk.jmh.annotations.Mode; | ||
| import org.openjdk.jmh.annotations.OutputTimeUnit; | ||
| import org.openjdk.jmh.annotations.Param; | ||
| import org.openjdk.jmh.annotations.Scope; | ||
| import org.openjdk.jmh.annotations.Setup; | ||
| import org.openjdk.jmh.annotations.State; | ||
| import org.openjdk.jmh.annotations.TearDown; | ||
| import org.openjdk.jmh.runner.Runner; | ||
| import org.openjdk.jmh.runner.options.ChainedOptionsBuilder; | ||
| import org.openjdk.jmh.runner.options.OptionsBuilder; | ||
| import org.openjdk.jmh.runner.options.TimeValue; | ||
|
|
||
|
|
||
| @State(Scope.Benchmark) | ||
| public class BenchmarkDictionaryLookup { | ||
| private static final File INDEX_DIR = new File(FileUtils.getTempDirectory(), "BenchmarkDictionaryLookup"); | ||
| private static final int MAX_LENGTH = 10; | ||
| private static final String COLUMN_NAME = "column"; | ||
|
|
||
| @Param({"100", "1000", "10000", "100000", "1000000"}) | ||
| private int _cardinality; | ||
|
|
||
| @Param({"1", "2", "4", "8", "16", "32", "64", "100"}) | ||
| private int _lookupPercentage; | ||
|
|
||
| private StringDictionary _dictionary; | ||
| private List<String> _lookupValues; | ||
|
|
||
| @Setup | ||
| public void setUp() | ||
| throws IOException { | ||
| FileUtils.deleteDirectory(INDEX_DIR); | ||
| Set<String> uniqueValues = new HashSet<>(); | ||
| while (uniqueValues.size() < _cardinality) { | ||
| uniqueValues.add(RandomStringUtils.randomAscii(MAX_LENGTH)); | ||
| } | ||
| String[] sortedValues = uniqueValues.toArray(new String[0]); | ||
| Arrays.sort(sortedValues); | ||
| int maxLength; | ||
| try (SegmentDictionaryCreator creator = new SegmentDictionaryCreator( | ||
| new DimensionFieldSpec(COLUMN_NAME, DataType.STRING, true), INDEX_DIR, false)) { | ||
| creator.build(sortedValues); | ||
| maxLength = creator.getNumBytesPerEntry(); | ||
| } | ||
| _dictionary = new StringDictionary( | ||
| PinotDataBuffer.mapReadOnlyBigEndianFile(new File(INDEX_DIR, COLUMN_NAME + V1Constants.Dict.FILE_EXTENSION)), | ||
| _cardinality, maxLength); | ||
| int numLookupValues = _cardinality * _lookupPercentage / 100; | ||
| if (numLookupValues == _cardinality) { | ||
| _lookupValues = Arrays.asList(sortedValues); | ||
| } else { | ||
| IntSet lookupValueIds = new IntOpenHashSet(); | ||
| while (lookupValueIds.size() < numLookupValues) { | ||
| lookupValueIds.add((int) (Math.random() * _cardinality)); | ||
| } | ||
| int[] sortedValueIds = lookupValueIds.toIntArray(); | ||
| Arrays.sort(sortedValueIds); | ||
| _lookupValues = new ArrayList<>(numLookupValues); | ||
| for (int lookupValueId : sortedValueIds) { | ||
| _lookupValues.add(sortedValues[lookupValueId]); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| @TearDown | ||
| public void tearDown() | ||
| throws Exception { | ||
| FileUtils.deleteDirectory(INDEX_DIR); | ||
| } | ||
|
|
||
| @Benchmark | ||
| @BenchmarkMode(Mode.Throughput) | ||
| @OutputTimeUnit(TimeUnit.SECONDS) | ||
| public int benchmarkDivideBinarySearch() { | ||
| IntSet dictIds = new IntOpenHashSet(); | ||
| _dictionary.getDictIds(_lookupValues, dictIds, Dictionary.SortedBatchLookupAlgorithm.DIVIDE_BINARY_SEARCH); | ||
| return dictIds.size(); | ||
| } | ||
|
|
||
| @Benchmark | ||
| @BenchmarkMode(Mode.Throughput) | ||
| @OutputTimeUnit(TimeUnit.SECONDS) | ||
| public int benchmarkScan() { | ||
| IntSet dictIds = new IntOpenHashSet(); | ||
| _dictionary.getDictIds(_lookupValues, dictIds, Dictionary.SortedBatchLookupAlgorithm.SCAN); | ||
| return dictIds.size(); | ||
| } | ||
|
|
||
| @Benchmark | ||
| @BenchmarkMode(Mode.Throughput) | ||
| @OutputTimeUnit(TimeUnit.SECONDS) | ||
| public int benchmarkPlainBinarySearch() { | ||
| IntSet dictIds = new IntOpenHashSet(); | ||
| _dictionary.getDictIds(_lookupValues, dictIds); | ||
| return dictIds.size(); | ||
| } | ||
|
|
||
| public static void main(String[] args) | ||
| throws Exception { | ||
| ChainedOptionsBuilder opt = | ||
| new OptionsBuilder().include(BenchmarkDictionaryLookup.class.getSimpleName()).warmupTime(TimeValue.seconds(3)) | ||
| .warmupIterations(1).measurementTime(TimeValue.seconds(5)).measurementIterations(1).forks(1); | ||
| new Runner(opt.build()).run(); | ||
| } | ||
| } |
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