gistfile1.cs

namespace SimpleConsole
{
    using System;
    using System.Collections.Generic;
    using System.Linq;

    class Program
    {
        /// <summary> 
        /// The main entry point for the application. 
        /// </summary>
        static void Main(string[] args)
        {
            var random = new Random(DateTime.Now.Millisecond);
            var array = Enumerable.Repeat(0, 1000 * 500).Select(_ => random.Next()).ToArray();

            CodeTimer.Initialize();

            CodeTimer.Time("SortWithDefaultComparer", 100,
                () => SortWithDefaultComparer(CloneArray(array)));

            CodeTimer.Time("SortWithCustomComparer", 100,
                () => SortWithCustomComparer(CloneArray(array)));

            CodeTimer.Time("SortWithDelegate", 100,
                () => SortWithDelegate(CloneArray(array)));

            CodeTimer.Time("SortWithLinq", 100,
                () => SortWithLinq(CloneArray(array)));

            Console.ReadLine();
        }

        static void SortWithDefaultComparer(int[] array)
        {
            Array.Sort(array, Comparer<int>.Default);
        }

        static void SortWithCustomComparer(int[] array)
        {
            Array.Sort(array, new Int32Comparer());
        }

        static void SortWithDelegate(int[] array)
        {
            Array.Sort(array, (x, y) => x - y);
        }

        static void SortWithLinq(int[] array)
        {
            var sorted =
                (from i in array
                 orderby i
                 select i).ToList();
        }

        private class Int32Comparer : IComparer<int>
        {
            #region IComparer<int> Members

            public int Compare(int x, int y)
            {
                return x - y;
            }

            #endregion
        }

        static T[] CloneArray<T>(T[] source)
        {
            var dest = new T[source.Length];
            Array.Copy(source, dest, source.Length);
            return dest;
        }
    }
}