/// <summary>
        /// clear the performance counter
        /// </summary>
        public static void Close()
        {
            PerfCounterAccess.Close();
#if DEBUG
            PerfCounterAccess.DeleteCategory();
#endif
        }
 /// <summary>
 /// delete the performance counter
 /// </summary>
 public static void DeleteCategory()
 {
     PerfCounterAccess.DeleteCategory();
 }