| /* |
| * 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.groovy.bench.dispatch; |
| |
| import org.openjdk.jmh.annotations.*; |
| import org.openjdk.jmh.infra.Blackhole; |
| |
| import java.util.Arrays; |
| import java.util.Random; |
| import java.util.concurrent.TimeUnit; |
| |
| @Warmup(iterations = 5, time = 2, timeUnit = TimeUnit.SECONDS) |
| @Measurement(iterations = 5, time = 2, timeUnit = TimeUnit.SECONDS) |
| @Fork(3) |
| @BenchmarkMode(Mode.Throughput) |
| @OutputTimeUnit(TimeUnit.MILLISECONDS) |
| public class CallsiteBench { |
| |
| @Benchmark |
| public void dispatch_1_monomorphic_groovy(MonomorphicState state, Blackhole bh) { |
| Callsite.dispatch(state.receivers, bh); |
| } |
| |
| @Benchmark |
| public void dispatch_1_monomorphic_java(MonomorphicState state, Blackhole bh) { |
| JavaDispatch.dispatch(state.receivers, bh); |
| } |
| |
| @Benchmark |
| public void dispatch_3_polymorphic_groovy(PolymorphicState state, Blackhole bh) { |
| Callsite.dispatch(state.receivers, bh); |
| } |
| |
| @Benchmark |
| public void dispatch_3_polymorphic_java(PolymorphicState state, Blackhole bh) { |
| JavaDispatch.dispatch(state.receivers, bh); |
| } |
| |
| @Benchmark |
| public void dispatch_8_megamorphic_groovy(MegamorphicState state, Blackhole bh) { |
| Callsite.dispatch(state.receivers, bh); |
| } |
| |
| @Benchmark |
| public void dispatch_8_megamorphic_java(MegamorphicState state, Blackhole bh) { |
| JavaDispatch.dispatch(state.receivers, bh); |
| } |
| |
| private static class JavaDispatch { |
| static void dispatch(Object[] receivers, Blackhole bh) { |
| for (Object receiver : receivers) { |
| bh.consume(receiver.toString()); |
| } |
| } |
| } |
| |
| private static final int RECEIVER_COUNT = 64; |
| |
| private static final Object[] RECEIVERS = new Object[] { |
| new Receiver1(), new Receiver2(), new Receiver3(), new Receiver4(), |
| new Receiver5(), new Receiver6(), new Receiver7(), new Receiver8() |
| }; |
| |
| @State(Scope.Thread) |
| public static class MonomorphicState { |
| Object[] receivers; |
| @Setup(Level.Trial) |
| public void setUp() { |
| receivers = new Object[RECEIVER_COUNT]; |
| Arrays.fill(receivers, RECEIVERS[0]); |
| } |
| } |
| |
| @State(Scope.Thread) |
| public static class PolymorphicState { |
| final Random random = new Random(); |
| Object[] receivers; |
| @Setup(Level.Iteration) |
| public void setUp() { |
| receivers = new Object[RECEIVER_COUNT]; |
| for (int i = 0; i < RECEIVER_COUNT; i++) { |
| receivers[i] = RECEIVERS[random.nextInt(3)]; |
| } |
| } |
| } |
| |
| @State(Scope.Thread) |
| public static class MegamorphicState { |
| final Random random = new Random(); |
| Object[] receivers; |
| @Setup(Level.Iteration) |
| public void setUp() { |
| receivers = new Object[RECEIVER_COUNT]; |
| for (int i = 0; i < RECEIVER_COUNT; i++) { |
| receivers[i] = RECEIVERS[random.nextInt(8)]; |
| } |
| } |
| } |
| |
| private static class Receiver1 { |
| @Override public String toString() { return "receiver1"; } |
| } |
| |
| private static class Receiver2 { |
| @Override public String toString() { return "receiver2"; } |
| } |
| |
| private static class Receiver3 { |
| @Override public String toString() { return "receiver3"; } |
| } |
| |
| private static class Receiver4 { |
| @Override public String toString() { return "receiver4"; } |
| } |
| |
| private static class Receiver5 { |
| @Override public String toString() { return "receiver5"; } |
| } |
| |
| private static class Receiver6 { |
| @Override public String toString() { return "receiver6"; } |
| } |
| |
| private static class Receiver7 { |
| @Override public String toString() { return "receiver7"; } |
| } |
| |
| private static class Receiver8 { |
| @Override public String toString() { return "receiver8"; } |
| } |
| |
| } |