array iteration

Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApp1
{
    using System.Diagnostics;
    using System.Threading.Tasks;

    class Program
    {
        static void Main(string[] args)
        {
            var random = new Random();
            var length = 100000;
            var array1 = Enumerable.Range(0, length).Select(
                i =>
                    {
                        return (byte)random.Next(255);

                    }).ToArray();

            var array2 = new byte[length];

            Array.Copy(array1, array2, length);
            int testLength = 100000;
            bool equals = true;
            var sw = Stopwatch.StartNew();
            for (int j = 0; j < testLength; j++)
            {
                for (int i = 0; i < array2.Length; i++)
                {
                    if (array1[i] != array2[i])
                    {
                        equals = false;
                    }
                }
            }
            sw.Stop();
            Console.WriteLine(equals);
            Console.WriteLine(sw.Elapsed);

            sw = Stopwatch.StartNew();
            for (int j = 0; j < testLength; j++)
            {
                for (int i = 0; i < array2.Length/2; i++)
                {
                    var lengthToCheck = array2.Length -1 - i;
                    if (array1[i] != array2[i] || array1[lengthToCheck] != array2[lengthToCheck])
                    {
                        equals = false;
                    }
                }
            }
            sw.Stop();
            Console.WriteLine(equals);
            Console.WriteLine(sw.Elapsed);

            //True
            //00:00:07.9054352
            //True
            //00:00:12.5653817
            //Press any key to continue . . .

        }
    }
}