Struct Performance and beforefieldinit

    public struct NoStaticCtor
    {
        private static int _myValue = 3;
        public static int GetMyValue() { return _myValue; }
    }

    public struct StaticCtor
    {
        private static int _myValue;
        public static int GetMyValue() { return _myValue; }
        static StaticCtor()
        {
            _myValue = 3;
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            long numTimes = 5000000000;
            Stopwatch sw = new Stopwatch();
            sw.Start();
            for (long i = 0; i < numTimes; i++)
            {
                NoStaticCtor.GetMyValue();
            }
            sw.Stop();
            Console.WriteLine("No static ctor: {0}", sw.Elapsed);

            sw.Restart();
            for (long i = 0; i < numTimes; i++)
            {
                StaticCtor.GetMyValue();
            }
            sw.Stop();
            Console.WriteLine("with static ctor: {0}", sw.Elapsed);

            sw.Restart();
            for (long i = 0; i < numTimes; i++)
            {
                NoStaticCtor.GetMyValue();
            }
            sw.Stop();
            Console.WriteLine("No static ctor: {0}", sw.Elapsed);

            sw.Restart();
            for (long i = 0; i < numTimes; i++)
            {
                StaticCtor.GetMyValue();
            }
            sw.Stop();
            Console.WriteLine("with static ctor: {0}", sw.Elapsed);
        }
    }

-----
No static ctor: 00:00:03.3342359
with static ctor: 00:00:14.6139917
No static ctor: 00:00:03.2229995
with static ctor: 00:00:12.9524860
Press any key to continue . . .