Test DateTime.UtcNow resolution

TimeTest.cs

using System;
class Program
{
    static void Main(string[] args)
    {
        int total = 0;
        int count = 0;
        while (true) {
            count++;
            var start = DateTime.UtcNow;
            for (int i = 0; ; i++) {
                var now = DateTime.UtcNow;
                if (now > start) {
                    total += i;
                    var avg = total / count;
                    Console.WriteLine(avg + " " + (now - start).ToString());
                    start = now;
                    break;
                }
            }
        }
    }
}