C# Determine execution Time of a method

Question

2.33/5 (2 votes)

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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:

C#

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

Then I calculated the difference between both results, and I get 350.I dont know if it microseconds or milliseconds...

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

Posted 23-Nov-13 9:36am

Member 10304617

Updated 23-Nov-13 11:37am

Marco Bertschi

v3

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Marco Bertschi · Accepted Answer · 2013-11-23T10:16:00

Solution 1

Why don't you write something like this:

C#

DateTime start = DateTime.Now; //Start time
DoFoo(); //Execute your method
DateTime end = DateTime.Now;   //End time

TimeSpan timeDifference = end - start; //Time span between start and end = the time span needed to execute your method
int difference_Miliseconds = (int)span.TotalMilliseconds; //Gives you the time needed to execute the method in miliseconds (= time between start and end in miliseconds)

Posted 23-Nov-13 10:16am

Marco Bertschi

Comments

Member 10304617 23-Nov-13 16:30pm

You are right, its better!
Thanks!!!

Marco Bertschi 23-Nov-13 17:35pm

You are welcome, glad that I was Abel to help you.

Sergey Alexandrovich Kryukov 23-Nov-13 20:33pm

It will work, but this isn't a most accurate method. Please see my solution.
—SA

Marco Bertschi 24-Nov-13 5:59am

Hi Sergey,

I know that my solution is not the most exact one. Thank you for providing another, more exact solution.

Sergey Alexandrovich Kryukov 24-Nov-13 10:18am

My pleasure.
—SA

Sergey Alexandrovich Kryukov · Accepted Answer · 2013-11-23T14:32:00

The method shown in Solution 1 is not the most accurate. The most accurate timing is provided by the class System.Diagnostics.Stopwatch:
http://msdn.microsoft.com/en-us/library/system.diagnostics.stopwatch%28v=vs.110%29.aspx[^].

You can find out time resolution provided by checking these two static fields:
http://msdn.microsoft.com/en-us/library/system.diagnostics.stopwatch.frequency(v=vs.110).aspx[^],
http://msdn.microsoft.com/en-us/library/system.diagnostics.stopwatch.ishighresolution(v=vs.110).aspx[^].

—SA