using System;

public class Program

{

    public delegate bool ConditionDelegate();

    public static void Main()

    {

        MyClass o = new MyClass();

        ConditionDelegate dele = () => o.Func();

        System.Func<bool> func = o.Func;

        System.Action action = o.Action;

        var sw = System.Diagnostics.Stopwatch.StartNew();

        for(int i = 0; i < 100; i++)

        {

            o.Func();

        }

        sw.Stop();

        Console.WriteLine("norm " + sw.Elapsed.TotalMilliseconds);

        sw.Restart();

        for(int i = 0; i < 100; i++)

        {

            dele();

        }

        sw.Stop();

        Console.WriteLine("dele " + sw.Elapsed.TotalMilliseconds);

        sw.Restart();

        for(int i = 0; i < 100; i++)

        {

            func.Invoke();

        }

        sw.Stop();

        Console.WriteLine("func " + sw.Elapsed.TotalMilliseconds);

        sw.Restart();

        for(int i = 0; i < 100; i++)

        {

            action.Invoke();

        }

        sw.Stop();

        Console.WriteLine("acti " + sw.Elapsed.TotalMilliseconds);

    }

}

​

public class MyClass

{

    private int blaa;

    public bool Func()

    {

        return (blaa % 2) == 0;

    }

    public void Action()

    {

        blaa++;

    }

}