using System;

using System.Diagnostics;

using System.Linq;

using System.Text;

​

public class Program

{

    public static void Main()

    {

        var text = "asdasdasd\nasdasdasdasdasd\nasdasdasdassd    \r\naasdasdsadsadasd\n\n   \n\n\nasdasdaasdasda\nasdasdasd\rasdasdsd\r\nadasdasdas";

        var sw = new Stopwatch();

        var splits1 = new[] { "\n", "\r\n", "\n\n", "\r" };

​

        string[] arguments1 = new string[0];

        sw.Start();

        for (var i = 0; i < 100000; i++)

        {

            arguments1 = text.Split(splits1, StringSplitOptions.RemoveEmptyEntries);

        }

        sw.Stop();

        if (arguments1.Length != 8)

        {

            Console.WriteLine("ERROR: length mismatch");

        }

        Console.WriteLine("Milliseconds using split strings: "+ sw.ElapsedMilliseconds);

​

        var splits2 = new[] { '\n', '\r' };

        string[] arguments2 = new string[0];

        sw.Restart();

        for (var i = 0; i < 100000; i++)

        {

            arguments2 = text.Split(splits2, StringSplitOptions.RemoveEmptyEntries).Where(s => !string.IsNullOrWhiteSpace(s)).ToArray();

        }

        sw.Stop();

        if (arguments2.Length != 8)

        {

            Console.WriteLine("ERROR: length mismatch");

        }

        Console.WriteLine("Milliseconds using split chars + Linq filter: " + sw.ElapsedMilliseconds);

    }

}