using System;

public class Program

    {

        public static void Main(string[] args)

        {

            var iterations = 100000;

            var fooTimer = new DateTime();

​

            Console.WriteLine("starting struct loop");

​

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

            {

                foo f = new foo(3.14);

            }

​

            //Console.WriteLine("struct loop completed, starting class loop");

            Console.WriteLine("struct loop completed, duration = {0}ms, starting class loop", (DateTime.Now - fooTimer).Milliseconds);

            var barTimer = new DateTime();

​

            for (int j = 0; j < iterations; j++)

            {

                bar f = new bar(3.14);

            }

​

            //Console.WriteLine("class loop completed");

            Console.WriteLine("class loop completed, duration = {0}ms", (DateTime.Now - barTimer).Milliseconds);

        }

    }

​

    public class foo

    {

        public foo(double arg)

        {

            y = arg;

        }

​

        double y;

    }

​

    public class bar

    {

        public bar(double arg)

        {

            y = arg;

        }

​

        double y;

    }

​