怎样衡量一个功能正在运行多久？ [英] How do I measure how long a function is running?

问题描述

我想看到一个功能正在运行多长时间。所以我说我的窗体上的计时器对象，我来到了这个code：

I want to see how long a function is running. So I added a timer object on my form, and I came out with this code:

private int counter = 0;

// Inside button click I have:
timer = new Timer();
timer.Tick += new EventHandler(timer_Tick);
timer.Start();
Result result = new Result();
result = new GeneticAlgorithms().TabuSearch(parametersTabu, functia);
timer.Stop();

和

private void timer_Tick(object sender, EventArgs e)
{
    counter++;
    btnTabuSearch.Text = counter.ToString();
}

不过这还不算什么。为什么呢？

But this is not counting anything. Why?

推荐答案

要避免将来的问题，一个计时器，这里是正确的code：

To avoid future problems with a timer, here is the right code:

timer = new Timer();
timer.Tick += new EventHandler(timer_Tick);
timer.Interval = 1; //set interval on 1 milliseconds
timer.Enabled = true; //start the timer
Result result = new Result();
result = new GeneticAlgorithms().TabuSearch(parametersTabu, functia);
timer.Enabled = false; //stop the timer

---

private void timer_Tick(object sender, EventArgs e)
{
   counter++;
   btnTabuSearch.Text = counter.ToString();
}

但它是错误的形式给出。您必须使用秒表（System.Diagnostic）类，因为它是一个高分辨率定时器和单词的诊断的说的一切。

But it's the wrong aproach. You must use the Stopwatch (System.Diagnostic) class because it's a High resolution timer and the word Diagnostic says everything.

所以，试试这个：

Stopwatch timer = Stopwatch.StartNew();

Result result = new Result();
result = new GeneticAlgorithms().TabuSearch(parametersTabu, functia);

timer.Stop();  
TimeSpan timespan = timer.Elapsed;

btnTabuSearch.Text = String.Format("{0:00}:{1:00}:{2:00}", timespan.Minutes, timespan.Seconds, timespan.Milliseconds / 10);

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