benchmark-getter-setter.java

import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Level;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.Param;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;

@BenchmarkMode({Mode.Throughput})
public class TestSomethingInJava {
	
	@State(Scope.Benchmark)
	public static class TestState {
		
		@Param({"1", "2", "3", "4", "5", "6", "7", "8", "9", "10"})
		public int arg;
		
		public Test1 test1;
		
		public Test1_1 test1_1;
		
		public Test2 test2;
		
		@Setup(value = Level.Invocation)
		public void setup(){
			test1 = new Test1();
			test1_1 = new Test1_1();
			test2 = new Test2();
		}
	}
	
	public static class Test1 {
		private int i;
		public int getI() {
			return i;
		}
		public void setI(int i) {
			this.i = i;
		}
	}
	
	public static class Test1_1 {
		private int i;
		public void kindoflikesetI(int i) {
			this.i = i;
		}
		public int kindoflikegetI(){
			return i;
		}
	}
	
	public static class Test2 {
		public int i;
	}
	
	@Benchmark
	public Test1 testInstantiate1(){
		return new Test1();
	}
	
	@Benchmark
	public Test2 testInstantiate2(){
		return new Test2();
	}
	
	@Benchmark
	public int testSetAndGet1(TestState state){
		state.test1.setI(state.arg);
		return state.test1.getI();
	}
	
	@Benchmark
	public int testSetAndGet1_1(TestState state){
		state.test1_1.kindoflikesetI(state.arg);
		return state.test1_1.kindoflikegetI();
	}
	
	@Benchmark
	public int testSetAndGet2(TestState state){
		state.test2.i = state.arg;
		return state.test2.i;
	}
	
	public static Integer something(int i) {
		return i;
	}
}