使用缓存行提供效率

  public  class T {
            //private  long p1,p2,p3,p4,p5,p6,p7;
            public  long x = 0L;// 8bytes
            //private  long p9, p10, p11, p12, p13, p14, p15;
        }

        public static T[] arr = new T[2];
        private const long count = 10_0000_0000L;

        static void Main(string[] args)
        {

            arr[0] = new T();
            arr[1] = new T();

            var st = new Stopwatch();
            st.Start();
            Thread thread1 = new Thread(() => {
                for (long i = 0; i < count; i++)
                {
                    arr[0].x = i;
                }
            });
            Thread thread2 = new Thread(() => {
                for (long i = 0; i < count; i++)
                {
                    arr[1].x = i;  
                }
            });
            thread1.Start();
            thread2.Start();
            st.Stop();
            Console.WriteLine(st.ElapsedMilliseconds);//84  180（不加前面）

            Console.ReadKey();
}