ByteBufAllocatorAllocPatternBenchmark.java — netty Source File

Source Code

/*
 * Copyright 2025 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.buffer;

import io.netty.buffer.AdaptiveByteBufAllocator;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufAllocator;
import io.netty.buffer.PooledByteBufAllocator;
import io.netty.microbench.util.AbstractMicrobenchmark;
import io.netty.util.concurrent.FastThreadLocalThread;
import io.netty.util.internal.MathUtil;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.CompilerControl;
import org.openjdk.jmh.annotations.Measurement;
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.annotations.Threads;
import org.openjdk.jmh.annotations.Warmup;
import org.openjdk.jmh.infra.BenchmarkParams;

import java.util.ArrayList;
import java.util.SplittableRandom;
import java.util.concurrent.TimeUnit;
import java.util.function.Supplier;

@Warmup(iterations = 10, time = 1)
@Measurement(iterations = 10, time = 1)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@State(Scope.Benchmark)
@BenchmarkMode(Mode.AverageTime)
@Threads(1)
public class ByteBufAllocatorAllocPatternBenchmark extends AbstractMicrobenchmark {

    public enum AllocatorType {
        ADAPTIVE(AdaptiveByteBufAllocator::new),
        POOLED(() -> PooledByteBufAllocator.DEFAULT);

        private final Supplier<ByteBufAllocator> factory;

        AllocatorType(Supplier<ByteBufAllocator> factory) {
            this.factory = factory;
// ... (570 more lines)