【java】JMH微基准测试，报错Unable to find the resource: /META-INF/BenchmarkList

1.概述

代码如下

package com.java.thread.demo.volatiled;

import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.infra.Blackhole;
import org.openjdk.jmh.runner.Runner;
import org.openjdk.jmh.runner.RunnerException;
import org.openjdk.jmh.runner.options.Options;
import org.openjdk.jmh.runner.options.OptionsBuilder;

import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.LongAdder;

@BenchmarkMode(Mode.AverageTime) // 测试完成时间
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@Warmup(iterations = 1, time = 1, timeUnit = TimeUnit.SECONDS) // 预热 1 轮，每次 1s
@Measurement(iterations = 5, time = 5, timeUnit = TimeUnit.SECONDS) // 测试 5 轮，每次 3s
@Fork(1) // fork 1 个线程
@State(Scope.Benchmark)
@Threads(100) // 开启 1000 个并发线程
public class AlibabaAtomicTest {
    
    

    public static void main(String[] args) throws RunnerException {
    
    
        // 启动基准测试
        Options opt = new OptionsBuilder()
                .include(AlibabaAtomicTest.class.getSimpleName()) // 要导入的测试类
                .build();
        new Runner(opt).run(); // 执行测试
    }

    @Benchmark
    public int atomicTest(Blackhole blackhole) throws InterruptedException {
    
    
        AtomicInteger atomicInteger = new AtomicInteger();
        for (int i = 0; i < 1024; i++) {
    
    
            atomicInteger.addAndGet(1);
        }
        // 为了避免 JIT 忽略未被使用的结果
        return atomicInteger.intValue();
    }

    @Benchmark
    public int longAdderTest(Blackhole blackhole) throws InterruptedException {
    
    
        LongAdder longAdder = new LongAdder();
        for (int i = 0; i < 1024; i++) {
    
    
            longAdder.add(1);
        }
        return longAdder.intValue();
    }
}

刚开始值导入了

<dependency>
    <groupId>org.openjdk.jmh</groupId>
    <artifactId>jmh-core</artifactId>
    <version>1.18</version>
</dependency>
 

这个jar包，运行jmh报错

加入这个即可

<dependency>
    <groupId>org.openjdk.jmh</groupId>
    <artifactId>jmh-generator-annprocess</artifactId>
    <version>1.20</version>
    <scope>provided</scope>
</dependency>