C# calculate time stamp

Question

I want to check the amount of time it takes for a specific function to be performed ,so that I will add accurate time delay on my program... I tried to write this before and after my function:

public static String (this DateTime value)
{
   return value.ToString("mmssffff");
}

Then I calculated the difference between both results, and I get 350.I do not know if it microseconds or milliseconds...

Do you know the meaning of the result?(350) Do you have another idea to do this? Thanks!

Why don't you make it easy on yourself and use `value.ToString("mm:ss:ffff");`? You'll know immediatly what gives the output. — Jeroen Vannevel, Nov 23 '13 at 20:40
Don't use `DateTime` to measure elapsed time but [`StopWatch`](http://msdn.microsoft.com/en-us/library/system.diagnostics.stopwatch(v=vs.110).aspx). — Tim Schmelter, Nov 23 '13 at 20:41
Have you looked at using the [StopWatch](http://msdn.microsoft.com/en-us/library/system.diagnostics.stopwatch(v=vs.110).aspx)? — Metro Smurf, Nov 23 '13 at 20:41
http://stackoverflow.com/questions/16376191/measuring-code-execution-time — Soner Gönül, Nov 23 '13 at 20:42
@Tehila: Read the MSDN docs. Is it still unclear? It's really just the same as the real world entity 'stopwatch'.. — Jeroen Vannevel, Nov 23 '13 at 20:44

score 3 · Answer 1 · answered Nov 23 '13 at 20:40

3

Use Stopwatch for performance profiling.

 Stopwatch sw = new Stopwatch();
  sw.Start();
  SayHello();
  sw.Stop();
  Console.WriteLine("Total time elapsed {0} millseconds", sw.Elapsed.TotalMilliSeconds);

answered Nov 23 '13 at 20:40

Tilak

30,108
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Wilton · Answer 2 · 2013-11-23T20:51:17.503

2

I normally use something like this:

Stopwatch sw = Stopwatch.StartNew();
// rest of the code
sw.Stop();
Console.WriteLine("Total time (ms): {0}", sw.ElapsedMilliseconds);

edited Nov 23 '13 at 20:51

answered Nov 23 '13 at 20:41

Wilton

218
2
11

1

Why cast a `long` to a `long`? – Jeroen Vannevel Nov 23 '13 at 20:42
Sorry, don't need the cast. Edited. – Wilton Nov 23 '13 at 20:51

score 0 · Accepted Answer · answered Nov 23 '13 at 20:54

You can use profilers for this task. In many cases the single method takes a lot of time but a sub-method which should be executed instantly takes most of the time. In fact, I was working on a Java project before and I have observed that it took unreasonably much time to work out the solution. I have used a profiler there and have seen that a simple object instantiation took most of the time. The problem was, of course, that the Java library initialized a hole lot of things because of that constructor, so I have chosen an alternative instead. So, I think you should use a profiler, read more here and here to start working with C# profilers.

It looks complicated .. But I'll try. – Tehila Nov 23 '13 at 20:59 — Tehila, Nov 23 '13 at 20:59

C# calculate time stamp

3 Answers3