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SpringBoot-JMH

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尝试在spring test中使用基准测试。

演示代码

  • JMH 是一个用于在 JVM 上编写基准测试的 Java 工具库，它是作为 OpenJDK 项目的一部分开发的。

  • 在与spring test集成过程中，只需要成功加载spring即可。

Console

  • 当jmh先启动，在启动spring就正常使用了。
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# JMH version: 1.21
# VM version: JDK 1.8.0_275, OpenJDK 64-Bit Server VM, 25.275-b01
# VM invoker: /Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk/Contents/Home/jre/bin/java
# VM options: -server
# Warmup: 1 iterations, 10 s each
# Measurement: 1 iterations, 10 s each
# Timeout: 10 min per iteration
# Threads: 1 thread, will synchronize iterations
# Benchmark mode: Average time, time/op
# Benchmark: cn.z201.jmh.AppApplicationTest.environment

# Run progress: 0.00% complete, ETA 00:00:20
# Fork: N/A, test runs in the host VM
# *** WARNING: Non-forked runs may silently omit JVM options, mess up profilers, disable compiler hints, etc. ***
# *** WARNING: Use non-forked runs only for debugging purposes, not for actual performance runs. ***
# Warmup Iteration   1: 
  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::                (v2.4.5)

[cn.z201.jmh.AppApplicationTest.environment-jmh-worker-1] [StartupInfoLogger.java : 55] Starting application using Java 1.8.0_275 on z201MacBook-Pro.local with PID 23242 (started by zengqingfeng in /Users/zengqingfeng/word/code-example/SpringBoot-JMH)
[cn.z201.jmh.AppApplicationTest.environment-jmh-worker-1] [SpringApplication.java : 679] The following profiles are active: dev
[cn.z201.jmh.AppApplicationTest.environment-jmh-worker-1] [Bootstrap.java : 68] UT026010: Buffer pool was not set on WebSocketDeploymentInfo, the default pool will be used
[cn.z201.jmh.AppApplicationTest.environment-jmh-worker-1] [ServletContextImpl.java : 371] Initializing Spring embedded WebApplicationContext
[cn.z201.jmh.AppApplicationTest.environment-jmh-worker-1] [ServletWebServerApplicationContext.java : 289] Root WebApplicationContext: initialization completed in 809 ms
[cn.z201.jmh.AppApplicationTest.environment-jmh-worker-1] [ExecutorConfigurationSupport.java : 181] Initializing ExecutorService 'applicationTaskExecutor'
[cn.z201.jmh.AppApplicationTest.environment-jmh-worker-1] [Undertow.java : 120] starting server: Undertow - 2.2.7.Final
[cn.z201.jmh.AppApplicationTest.environment-jmh-worker-1] [Xnio.java : 95] XNIO version 3.8.0.Final
[cn.z201.jmh.AppApplicationTest.environment-jmh-worker-1] [NioXnio.java : 59] XNIO NIO Implementation Version 3.8.0.Final
[cn.z201.jmh.AppApplicationTest.environment-jmh-worker-1] [Version.java : 52] JBoss Threads version 3.1.0.Final
[cn.z201.jmh.AppApplicationTest.environment-jmh-worker-1] [UndertowWebServer.java : 133] Undertow started on port(s) 9031 (http)
[cn.z201.jmh.AppApplicationTest.environment-jmh-worker-1] [StartupInfoLogger.java : 61] Started application in 2.018 seconds (JVM running for 3.629)
[cn.z201.jmh.AppApplicationTest.environment-jmh-worker-1] [AppApplicationTest.java : 40] dev

测试代码

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@Slf4j
@State(Scope.Benchmark)
public class AppApplicationTest {

    private final static Integer MEASUREMENT_ITERATIONS = 1;
    private final static Integer WARMUP_ITERATIONS = 1;

    // 初始化容器，通过getBean获取spring 管理的bean。
    static ConfigurableApplicationContext context;

    public String[] activeProfiles;

    @Setup(Level.Trial)
    public synchronized void initialize() {
        try {
            String args = "";
            if (context == null) {
                context = SpringApplication.run(AppApplication.class, args);
                activeProfiles = context.getEnvironment().getActiveProfiles();
            }
            log.info("{}",activeProfiles);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @Test
    @Disabled
    public void executeJmhRunner() throws RunnerException {
        Options opt = new OptionsBuilder()
                // 设置类名正则表达式基准为搜索当前类
                .include("\\." + AppApplicationTest.class.getSimpleName() + "\\.")
                // 都是一些基本的参数，可以根据具体情况调整。一般比较重的东西可以进行大量的测试，放到服务器上运行。
                .warmupIterations(WARMUP_ITERATIONS) // 多少次预热
                .measurementIterations(MEASUREMENT_ITERATIONS) // 要做多少次测量m
                .timeUnit(TimeUnit.MILLISECONDS) // 毫秒
                // 不使用多线程
                .forks(0) // 进行 fork 的次数。如果 fork 数是2的话，则 JMH 会 fork 出两个进程来进行测试。
                .threads(1) // 每个进程中的测试线程，这个非常好理解，根据具体情况选择，一般为cpu乘以2。
                .mode(Mode.AverageTime)
                .shouldDoGC(true)
                .shouldFailOnError(true)
                .resultFormat(ResultFormatType.JSON) // 输出格式化
//                .result("/dev/null") // set this to a valid filename if you want reports
                .result("benchmark.json")
                .shouldFailOnError(true)
                .jvmArgs("-server")
                .build();
        new Runner(opt).run();
    }

    @Benchmark
    public void environment(){

    }

}

END