SkipPerformance

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace SkipTest
{
    class Program
    {


        static void Main(string[] args)
        {
            for (int i = 1; i < 100000; i+=1)
            {
                Stopwatch sw = new Stopwatch();
                sw.Start();
                int sum = Enumerable.Range(0, i * 100).Sum(n => { /*Thread.Sleep(1);*/ return n; });
                sw.Stop();
                var iterative = sw.ElapsedMilliseconds;


                sw.Reset();
                sw.Start();
                sum = RecursiveSum(Enumerable.Range(0, i * 100));
                sw.Stop();
                var recursive = sw.ElapsedMilliseconds;

                Console.WriteLine("Iterative\t{0}\tRecursive\t{1}", iterative / i, recursive / i);
            }
        }

        private static int RecursiveSum(IEnumerable<int> enumerable)
        {
            if (!enumerable.Any())
                return 0;

            return enumerable.First() + RecursiveSum(enumerable.Skip(1));
        }
    }
}