VarintDecodingBenchmark.java — netty Source File

Source Code

/*
 * Copyright 2024 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.handler.codec.protobuf;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.handler.codec.CorruptedFrameException;
import io.netty.microbench.util.AbstractMicrobenchmark;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Measurement;
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.Warmup;

import java.util.Random;
import java.util.concurrent.TimeUnit;

@State(Scope.Benchmark)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@BenchmarkMode(org.openjdk.jmh.annotations.Mode.AverageTime)
@Fork(2)
@Warmup(iterations = 10, time = 400, timeUnit = java.util.concurrent.TimeUnit.MILLISECONDS)
@Measurement(iterations = 5, time = 400, timeUnit = java.util.concurrent.TimeUnit.MILLISECONDS)
public class VarintDecodingBenchmark extends AbstractMicrobenchmark {

    private static final int SEED = 0;

    // Ryzen 7950X is exceptionally good to predict branches, so we need to use A LOT of inputs!
    @Param({ "1", "128", "128000" })
    int inputs;

    public enum InputDistribution {
        SMALL,
        LARGE,
        MEDIUM,
        ALL
    }

    @Param
    InputDistribution inputDistribution;
    ByteBuf[] data;
    int index;
// ... (136 more lines)