Describing data structures with C# 1: Detailed code explanation of statistical code execution time objects

Customize a class that counts code execution time CalcTiming, taking into account:

• During the statistical execution process, no Garbage collection. That is, let the GC complete garbage collection before counting the code execution time.

• Make sure that the statistics are the execution time of the code in the current process.

  Write the code as follows:

    public class CalcTiming
    {
        TimeSpan startTime;        
        private TimeSpan endTime;
        TimeSpan duration;        
        public CalcTiming()
        {
            startTime = new TimeSpan(0);
            duration = new TimeSpan(0);
        }        public void StartTime()
        {            //强制对所有代进行垃圾回收
            GC.Collect();            //挂起线程，终结器线程清空该队列为止
            GC.WaitForPendingFinalizers();            //用户运行代码的起始时间   
            startTime = Process.GetCurrentProcess().UserProcessorTime; 

        }        //统计的代码执行完毕的时间
        public void StopTime()
        {
            endTime = Process.GetCurrentProcess().UserProcessorTime;

            duration = endTime.Subtract(startTime);           
        }        //返回统计的代码执行消耗的时间
        public TimeSpan Result()
        {            return duration;
        }

    }

Use the above CalcTiming class to statistically display the time consumption of the array:

    class Program
    {
        static void Main(string[] args)
        {            int[] nums = new int[100000];
            BuildArray(nums);
            CalcTiming calcTime= new CalcTiming();
            calcTime.StartTime();
            DisplayNums(nums);
            calcTime.StopTime();
            Console.WriteLine(string.Format("共用时间:{0} ms",calcTime.Result().TotalMilliseconds));
            Console.Read();
        }        static void BuildArray(int[] arr)
        {            for (int i = 0; i < 100000; i++)
                arr[i] = 1;
        }        static void DisplayNums(int[] arr)
        {            for (int i = 0; i <= arr.GetUpperBound(0); i++)
                    Console.Write(arr[i] + " ");
        }
    }

Summary, Next, use C# to describe all data structures and use the CalcTiming object when counting the time consumed.
　

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