AbstractMicrobenchmark.java — netty Source File

Source Code

/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project 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:
 *
 *   https://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 io.netty.microbench.util;

import io.netty.util.concurrent.AbstractEventExecutor;
import io.netty.util.concurrent.DefaultThreadFactory;
import io.netty.util.concurrent.EventExecutor;
import io.netty.util.concurrent.FastThreadLocalThread;
import io.netty.util.concurrent.Future;
import io.netty.util.internal.EmptyArrays;
import io.netty.util.internal.PlatformDependent;
import io.netty.util.internal.SystemPropertyUtil;
import io.netty.util.internal.ThreadExecutorMap;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.runner.options.ChainedOptionsBuilder;

/**
 * Default implementation of the JMH microbenchmark adapter.  There may be context switches introduced by this harness.
 */
@Fork(AbstractMicrobenchmark.DEFAULT_FORKS)
public class AbstractMicrobenchmark extends AbstractMicrobenchmarkBase {

    protected static final int DEFAULT_FORKS = 2;

    public static final class HarnessExecutor extends ThreadPoolExecutor {
        private static final InternalLogger logger = InternalLoggerFactory.getInstance(AbstractMicrobenchmark.class);

        public HarnessExecutor(int maxThreads, String prefix) {
            super(maxThreads, maxThreads, 0, TimeUnit.MILLISECONDS,
                    new LinkedBlockingQueue<Runnable>(),
                    new DefaultThreadFactory(prefix));
            EventExecutor eventExecutor = new AbstractEventExecutor() {
                @Override
                public void shutdown() {
                    throw new UnsupportedOperationException();
                }

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