using System;
using System.Diagnostics;

namespace DeleteThis
{
    internal class Program
    {
        private static Stopwatch watcher = new Stopwatch();

        private static void Main()
        {
            var objCount = 30;
            var loopsCount = 5;

            for (int i = 0; i < loopsCount; i++)
                RunClasses(objCount);

            for (int i = 0; i < loopsCount; i++)
                RunStructs(objCount);

            Console.WriteLine("Done");
            Console.ReadKey();
        }

        private static void RunClasses(int objCount)
        {
            watcher.Restart();
            var list = new class1[objCount * 1000 * 1000];
            for (int i = 0; i < list.Length; i++)
                list[i] = new class1(i, i * 2);
            watcher.Stop();
            Console.WriteLine("Class run elapsed: " + watcher.Elapsed);
            GC.Collect();
        }

        private static void RunStructs(int objCount)
        {
            watcher.Restart();
            var list = new struct1[objCount * 1000 * 1000];
            for (int i = 0; i < list.Length; i++)
                list[i] = new struct1(i, i * 2);
            watcher.Stop();
            Console.WriteLine("Struct run elapsed: " + watcher.Elapsed);
            GC.Collect();
        }

        private class class1
        {
            public class1(int x, int y)
            {
                X = x;
                Y = y;
            }

            public int X { get; set; }
            public int Y { get; set; }
        }

        private struct struct1
        {
            public struct1(int x, int y)
            {
                X = x;
                Y = y;
            }

            public int X { get; set; }
            public int Y { get; set; }
        }
    }
}
==================================    Run      =================================
Class run elapsed: 00:00:04.5652342
Class run elapsed: 00:00:04.7994383
Class run elapsed: 00:00:05.3744633
Class run elapsed: 00:00:05.3462232
Class run elapsed: 00:00:05.6153301
Struct run elapsed: 00:00:00.2896144
Struct run elapsed: 00:00:00.2870866
Struct run elapsed: 00:00:00.3003215
Struct run elapsed: 00:00:00.2613126
Struct run elapsed: 00:00:00.2651348
Done
=================================================================================