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IpParse DnsGetHost Entry

using System;
using System.Collections.Generic;
using System.Collections;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Threading;

namespace Server
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.SetWindowSize(40, 20);

            List<long> time1 = new List<long>();
            List<long> time2 = new List<long>();

            System.Diagnostics.Stopwatch st1 = new System.Diagnostics.Stopwatch();
            System.Diagnostics.Stopwatch st2 = new System.Diagnostics.Stopwatch();
            
            for (int i = 0; i < 100; ++i)
            {
                st1.Start();
                IPEndPoint ep = new IPEndPoint(IPAddress.Parse("192.168.212.21"), 48888);
                st1.Stop();
                time1.Add(st1.ElapsedMilliseconds);
            }

            for (int i = 0; i < 100; ++i)
            {
                st2.Start();
                IPEndPoint serverEndpoint = new IPEndPoint(Dns.GetHostEntry("192.168.212.21").AddressList[0], 48888);
                st2.Stop();
                time2.Add(st2.ElapsedMilliseconds);
            }
             
            long avg = 0;
            StringBuilder sb = new StringBuilder(); 
            foreach (long l in time1)
            {
                sb.Append(l.ToString() + ", ");
                avg += l;                
            }
            Console.WriteLine(@"IP-Address Parse Average: {0}", avg / time1.Count);
            Console.WriteLine(sb.ToString());
            
            avg = 0;
            sb = new StringBuilder();
            foreach (long l in time2)
            {
                sb.Append(l.ToString() + ", ");
                avg += l;
            }
            Console.WriteLine(@"DNS GetHostEntry Average: {0}", avg / time2.Count);
            Console.WriteLine(sb.ToString());
            Console.ReadLine();
        }
    }
}