Test performance of overload vs optional in simple use case

gistfile1.cs

using System;
using System.Diagnostics;

namespace OverloadOrOptional
{
    public class Program
    {
        public static void OverloadParamMethod(bool input)
        {
            OverloadParamMethod(input, null);
        }

        private static int OverloadParamMethodCounter = 0;

        public static void OverloadParamMethod(bool input, string input2)
        {
            OverloadParamMethodCounter++;
        }

        private static int OptionalParamMethodCounter = 0;

        public static void OptionalParamMethod(bool input, string input2 = null)
        {
            OptionalParamMethodCounter++;
        }

        public static void Main(string[] args)
        {
            OptionalParamMethod(true);
            OptionalParamMethod(false, "hello");
            OverloadParamMethod(true);
            OverloadParamMethod(false, "hello");

            var sw = Stopwatch.StartNew();
            for (int i = 0; i < 100000000; i++)
            {
                OverloadParamMethod(true);
                OverloadParamMethod(false, "hello");
            }
            sw.Stop();
            Console.WriteLine("Overload {0} ticks", sw.ElapsedTicks);

            var sw2 = Stopwatch.StartNew();
            for (int i = 0; i < 100000000; i++)
            {
                OptionalParamMethod(true);
                OptionalParamMethod(false, "hello");
            }
            sw2.Stop();
            Console.WriteLine("Optional {0} ticks", sw2.ElapsedTicks);

            Console.ReadLine();
        }
    }
}