Test object instance creation

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq.Expressions;
using System.Reflection.Emit;
using System.Runtime.Serialization;

namespace ConsoleApplication1
{
    public class Program
    {
        public static void Main()
        {
            const int iterations = 10000;
            var functions = new Dictionary<string, Func<Created>>();

            functions.Add("new", () => new Created());

            functions.Add("Activator", () => (Created)Activator.CreateInstance(typeof(Created)) );

            functions.Add("constructorInfo.Invoke", () =>
                                    {
                                        var constructorInfo = typeof(Created).GetConstructor(Type.EmptyTypes);
                                        return (Created) constructorInfo.Invoke(null);
                                    });
            functions.Add("constructorInfo.Invoke GetUninitializedObject", () =>
                                    {
                                        var constructorInfo = typeof(Created).GetConstructor(Type.EmptyTypes);
                                        object o = FormatterServices.GetUninitializedObject(typeof(Created));
                                        return (Created)constructorInfo.Invoke(o, null);
                                    });
            functions.Add("DynamicMethod", () =>
                                    {
                                        var type = typeof (Created);
                                        var constructorInfo = typeof(Created).GetConstructor(Type.EmptyTypes);
                                        var dm = new DynamicMethod("MyCtor", type, Type.EmptyTypes, typeof(Program).Module, true);
                                        ILGenerator ilgen = dm.GetILGenerator();
                                        ilgen.Emit(OpCodes.Nop);
                                        ilgen.Emit(OpCodes.Newobj, constructorInfo);
                                        ilgen.Emit(OpCodes.Ret);

                                        return (Created)dm.Invoke(null, null);
                                    });
            functions.Add("DynamicMethod with Delegate", () =>
                                    {
                                        var type = typeof (Created);
                                        var constructorInfo = typeof(Created).GetConstructor(Type.EmptyTypes);
                                        var dm = new DynamicMethod("MyCtor", type, Type.EmptyTypes, typeof(Program).Module, true);
                                        ILGenerator ilgen = dm.GetILGenerator();
                                        ilgen.Emit(OpCodes.Nop);
                                        ilgen.Emit(OpCodes.Newobj, constructorInfo);
                                        ilgen.Emit(OpCodes.Ret);
                                        return ((Func<Created>)dm.CreateDelegate(typeof(Func<Created>)))();
                                    });
            functions.Add("Expression", () =>
                                    {
                                        var constructorInfo = typeof(Created).GetConstructor(Type.EmptyTypes);
                                        var newExp = Expression.New(constructorInfo);
                                        var lambda = Expression.Lambda(typeof(Func<Created>), newExp);
                                        return ((Func<Created>) lambda.Compile())();
                                    });


            foreach (var item in functions)
            {
                var watch = Stopwatch.StartNew();
                for (int i = 0; i < iterations; i++)
                {
                   item.Value();

                }
                Console.WriteLine("{1}  {0}",item.Key, watch.Elapsed);
            }
            Console.ReadLine();
        }
    }

    public class Created
    {
        public int Num;
        public string Name;

        public Created(int num, string name)
        {
            Num = num;
            Name = name;
        }

        public Created()
        {
            Num = 1;
            Name = "Created";
        }
    }
}