InliningBenchmark.java

package bench;

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

@State(Scope.Thread)
public class InliningBenchmark {
    static volatile int value = 20;

    @Benchmark
    public int inlineStaticSmall() {
        return smallMethod();
    }

    @Benchmark
    public int inlineVirtualLarge() {
        return largeMethod();
    }

    public static int smallMethod() {
        if (value == 10) {
            return 111;
        } else if (value == 20) {
            return 222;
        } else {
            return 0;
        }
    }

    public int largeMethod() {
        if (value == 10) {
            return 111;
        } else if (value == 20) {
            return 222;
        } else if (value == 30) {
            return 333;
        } else if (value == 40) {
            return 444;
        } else if (value == 50) {
            return 555;
        } else if (value == 60) {
            return 666;
        } else if (value == 70) {
            return 777;
        } else if (value == 80) {
            return 888;
        } else if (value == 90) {
            return 999;
        } else {
            return 0;
        }
    }
}