| /* |
| * 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.camel.itest.jmh; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.concurrent.TimeUnit; |
| import java.util.stream.Collectors; |
| import java.util.stream.IntStream; |
| |
| import org.apache.camel.util.CaseInsensitiveMap; |
| import org.junit.Test; |
| import org.openjdk.jmh.annotations.Benchmark; |
| import org.openjdk.jmh.annotations.Level; |
| import org.openjdk.jmh.annotations.Mode; |
| import org.openjdk.jmh.annotations.Scope; |
| import org.openjdk.jmh.annotations.Setup; |
| import org.openjdk.jmh.annotations.State; |
| import org.openjdk.jmh.infra.Blackhole; |
| import org.openjdk.jmh.runner.Runner; |
| import org.openjdk.jmh.runner.options.Options; |
| import org.openjdk.jmh.runner.options.OptionsBuilder; |
| import org.openjdk.jmh.runner.options.TimeValue; |
| |
| import static org.apache.commons.lang3.RandomStringUtils.randomAlphabetic; |
| |
| /** |
| * Tests {@link CaseInsensitiveMap} |
| */ |
| public class CaseInsensitiveMapTest { |
| |
| @Test |
| public void launchBenchmark() throws Exception { |
| Options opt = new OptionsBuilder() |
| // Specify which benchmarks to run. |
| // You can be more specific if you'd like to run only one benchmark per test. |
| .include(this.getClass().getName() + ".*") |
| // Set the following options as needed |
| .mode(Mode.SampleTime) |
| .timeUnit(TimeUnit.MILLISECONDS) |
| .warmupTime(TimeValue.seconds(1)) |
| .warmupIterations(2) |
| .measurementTime(TimeValue.seconds(5)) |
| .measurementIterations(5) |
| .threads(1) |
| .forks(1) |
| .shouldFailOnError(true) |
| .shouldDoGC(true) |
| .measurementBatchSize(1000000) |
| .build(); |
| |
| new Runner(opt).run(); |
| } |
| |
| // The JMH samples are the best documentation for how to use it |
| // http://hg.openjdk.java.net/code-tools/jmh/file/tip/jmh-samples/src/main/java/org/openjdk/jmh/samples/ |
| @State(Scope.Thread) |
| public static class MapsBenchmarkState { |
| CaseInsensitiveMap camelMap; |
| com.cedarsoftware.util.CaseInsensitiveMap cedarsoftMap; |
| HashMap hashMap; |
| |
| @Setup(Level.Trial) |
| public void initialize() { |
| camelMap = new CaseInsensitiveMap(); |
| cedarsoftMap = new com.cedarsoftware.util.CaseInsensitiveMap(); |
| hashMap = new HashMap(); |
| } |
| |
| } |
| |
| @State(Scope.Benchmark) |
| public static class MapsSourceDataBenchmarkState { |
| Map<String, Object> map1 = generateRandomMap(10); |
| Map<String, Object> map2 = generateRandomMap(10); |
| |
| private Map<String, Object> generateRandomMap(int size) { |
| return IntStream.range(0, size) |
| .boxed() |
| .collect(Collectors.toMap(i -> randomAlphabetic(10), i-> randomAlphabetic(10))); |
| } |
| } |
| |
| @Benchmark |
| public void camelMapSimpleCase(MapsBenchmarkState state, Blackhole bh) { |
| Map map = state.camelMap; |
| |
| map.put("foo", "Hello World"); |
| Object o1 = map.get("foo"); |
| bh.consume(o1); |
| Object o2 = map.get("FOO"); |
| bh.consume(o2); |
| |
| map.put("BAR", "Bye World"); |
| Object o3 = map.get("bar"); |
| bh.consume(o3); |
| Object o4 = map.get("BAR"); |
| bh.consume(o4); |
| } |
| |
| @Benchmark |
| public void cedarsoftMapSimpleCase(MapsBenchmarkState state, Blackhole bh) { |
| Map map = state.cedarsoftMap; |
| |
| map.put("foo", "Hello World"); |
| Object o1 = map.get("foo"); |
| bh.consume(o1); |
| Object o2 = map.get("FOO"); |
| bh.consume(o2); |
| |
| map.put("BAR", "Bye World"); |
| Object o3 = map.get("bar"); |
| bh.consume(o3); |
| Object o4 = map.get("BAR"); |
| bh.consume(o4); |
| } |
| |
| @Benchmark |
| public void hashMapSimpleCase(MapsBenchmarkState state, Blackhole bh) { |
| Map map = state.hashMap; |
| |
| map.put("foo", "Hello World"); |
| Object o1 = map.get("foo"); |
| bh.consume(o1); |
| Object o2 = map.get("FOO"); |
| bh.consume(o2); |
| |
| map.put("BAR", "Bye World"); |
| Object o3 = map.get("bar"); |
| bh.consume(o3); |
| Object o4 = map.get("BAR"); |
| bh.consume(o4); |
| } |
| |
| @Benchmark |
| public void camelMapComplexCase(MapsBenchmarkState mapsBenchmarkState, MapsSourceDataBenchmarkState sourceDataState, Blackhole blackhole) { |
| // step 1 - initialize map with existing elements |
| Map map = mapsBenchmarkState.camelMap; |
| |
| // step 2 - add elements one by one |
| sourceDataState.map2.entrySet().forEach(entry -> blackhole.consume(map.put(entry.getKey(), entry.getValue()))); |
| |
| // step 3 - remove elements one by one |
| sourceDataState.map1.keySet().forEach(key -> blackhole.consume(map.get(key))); |
| |
| // step 4 - remove elements one by one |
| sourceDataState.map1.keySet().forEach(key -> blackhole.consume(map.remove(key))); |
| |
| // step 5 - add couple of element at once |
| map.putAll(sourceDataState.map1); |
| |
| blackhole.consume(map); |
| } |
| |
| |
| @Benchmark |
| public void cedarsoftMapComplexCase(MapsBenchmarkState mapsBenchmarkState, MapsSourceDataBenchmarkState sourceDataState, Blackhole blackhole) { |
| // step 1 - initialize map with existing elements |
| Map map = mapsBenchmarkState.cedarsoftMap; |
| |
| // step 2 - add elements one by one |
| sourceDataState.map2.entrySet().forEach(entry -> blackhole.consume(map.put(entry.getKey(), entry.getValue()))); |
| |
| // step 3 - remove elements one by one |
| sourceDataState.map1.keySet().forEach(key -> blackhole.consume(map.get(key))); |
| |
| // step 4 - remove elements one by one |
| sourceDataState.map1.keySet().forEach(key -> blackhole.consume(map.remove(key))); |
| |
| // step 5 - add couple of element at once |
| map.putAll(sourceDataState.map1); |
| |
| blackhole.consume(map); |
| } |
| |
| @Benchmark |
| public void hashMapComplexCase(MapsBenchmarkState mapsBenchmarkState, MapsSourceDataBenchmarkState sourceDataState, Blackhole blackhole) { |
| // step 1 - initialize map with existing elements |
| Map map = mapsBenchmarkState.hashMap; |
| |
| // step 2 - add elements one by one |
| sourceDataState.map2.entrySet().forEach(entry -> blackhole.consume(map.put(entry.getKey(), entry.getValue()))); |
| |
| // step 3 - remove elements one by one |
| sourceDataState.map1.keySet().forEach(key -> blackhole.consume(map.get(key))); |
| |
| // step 4 - remove elements one by one |
| sourceDataState.map1.keySet().forEach(key -> blackhole.consume(map.remove(key))); |
| |
| // step 5 - add couple of element at once |
| map.putAll(sourceDataState.map1); |
| |
| blackhole.consume(map); |
| } |
| |
| } |