chenboat commented on code in PR #16364: URL: https://github.com/apache/pinot/pull/16364#discussion_r2389533984
########## pinot-perf/src/main/java/org/apache/pinot/perf/BenchmarkNgramFilteringIndex.java: ########## @@ -0,0 +1,100 @@ +/** + * 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 java.util.concurrent.TimeUnit; +import org.apache.pinot.segment.local.realtime.impl.invertedindex.RealtimeNgramFilteringIndex; +import org.openjdk.jmh.annotations.Benchmark; +import org.openjdk.jmh.annotations.BenchmarkMode; +import org.openjdk.jmh.annotations.Fork; +import org.openjdk.jmh.annotations.Level; +import org.openjdk.jmh.annotations.Measurement; +import org.openjdk.jmh.annotations.Mode; +import org.openjdk.jmh.annotations.OutputTimeUnit; +import org.openjdk.jmh.annotations.Scope; +import org.openjdk.jmh.annotations.Setup; +import org.openjdk.jmh.annotations.State; +import org.openjdk.jmh.annotations.Warmup; +import org.openjdk.jmh.runner.Runner; +import org.openjdk.jmh.runner.options.ChainedOptionsBuilder; +import org.openjdk.jmh.runner.options.OptionsBuilder; +import org.roaringbitmap.IntIterator; +import org.roaringbitmap.buffer.MutableRoaringBitmap; + + +/** + * This benchmark is a benchmark for testing the performance of N-gram filtering index vs a pure regex matcher + */ +@OutputTimeUnit(TimeUnit.MILLISECONDS) +@Fork(1) +@Warmup(iterations = 1) +@Measurement(iterations = 2) +@State(Scope.Benchmark) +public class BenchmarkNgramFilteringIndex { + public static final String PREFIX = "somelonglongveryverylongword"; + RealtimeNgramFilteringIndex _realtimeNgramFilteringIndex; + + public static void main(String[] args) + throws Exception { + ChainedOptionsBuilder opt = new OptionsBuilder().include(BenchmarkNgramFilteringIndex.class.getSimpleName()); + new Runner(opt.build()).run(); + } + + @Setup(Level.Trial) + public void setUp() + throws Exception { + _realtimeNgramFilteringIndex = new RealtimeNgramFilteringIndex("col", 2, 3); + // Load the index with 10000 words + for (int i = 0; i < 10000; i++) { + _realtimeNgramFilteringIndex.add(PREFIX + i); + } + } + + @Benchmark + @BenchmarkMode(Mode.All) + @OutputTimeUnit(TimeUnit.MILLISECONDS) + public int benchmarkTextMatchingUsingNgram() { + // First retrieve the docIds using the N-gram index + MutableRoaringBitmap map = _realtimeNgramFilteringIndex.getDocIds("ord78"); + IntIterator intIterator = map.getIntIterator(); + // Next doing regex matching on the docIds to validate the results + while (intIterator.hasNext()) { + int docId = intIterator.next(); + // Simulate regex validate on th + (PREFIX + docId).matches(".*ord78.*"); + } + return 0; + } + + @Benchmark + @BenchmarkMode(Mode.All) + @OutputTimeUnit(TimeUnit.MILLISECONDS) + public int benchmarkMatchingViaRegexScan() { + // Matching the documents using regex scan + for (int i = 0; i < 10000; i++) { + (PREFIX + i).matches(".*ord78.*"); + } + return 0; + } + + public void tearDown() Review Comment: Added. -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
