本篇通過(guò)一小段代碼的console程序來(lái)進(jìn)行性能的分析以及改進(jìn)、直到后面的改進(jìn)前、改進(jìn)后性能比較結(jié)果。

先看console代碼(源代碼下載)：

代碼如下:
static void Main(string[] args)
        {
            int i = 10000;
            while(i-->0)
            {
                Core c=new  Core();
                c.Process(DateTime.Now.ToString());
            }
        }
public class Core
    {
        public void Process(string input)
        {
            //process logic
            string result = string.Format("{0}-{1}", DateTime.Now, input);

            //log to file
            Log(result);
        }

        public void Log(string message)
        {
            string fileName = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "log.txt");

            string msg = "{Now}: {Message}";
            msg = msg.Replace("{Now}", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
            msg = msg.Replace("{Message}", message);
            using (StreamWriter sw = System.IO.File.AppendText(fileName))
            {
                sw.WriteLine(msg);
                sw.Flush();
                sw.Close();
            }
        }
    }

 點(diǎn)擊“完成”按鈕，此時(shí)會(huì)自動(dòng)進(jìn)行分析，直接跑完控制臺(tái)程序，vs2012會(huì)自動(dòng)顯示出分析報(bào)告，如下：