在java中强制内联

import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.Level;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.State;
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;

public class InliningExample {

    @State(Scope.Benchmark)
    public static class MyState {
        int x = 10;
        int y = 20;
    }

    @Benchmark
    public int add(MyState state) {
        return addInlined(state.x, state.y);
    }

    @Benchmark
    public int addNoInline(MyState state) {
        return addNoInline(state.x, state.y);
    }

    @org.openjdk.jmh.annotations.ForceInline
    private int addInlined(int a, int b) {
        return a + b;
    }

    private int addNoInline(int a, int b) {
        return a + b;
    }

    public static void main(String[] args) throws RunnerException {
        Options options = new OptionsBuilder()
                .include(InliningExample.class.getSimpleName())
                .warmupIterations(5)
                .measurementIterations(5)
                .forks(1)
                .build();
        new Runner(options).run();
    }
}