hello,
i am trying to see how a method in my application does in terms of cpu usage. i have used performancecounter class objects to get the %values of the cpu usages, but dont know how to get the time the cpu takes to execute my method.

if you have any ideas, please let me know
thanks

The easiest thing you can do it to use StopWatch class in System.Diagnostics...

Call its method Start before calling that function and call Stop method right after the ending line of function.

It'll give you what you want i.e result in Miliseonds, CPU Ticks using ElapsedTicks, or ElapsedMiliseconds properties....

I hope this will help!

Best Regards,

rizwan.

You can mesure the time using date variables where you can set the first variable to DateTime.Now and the second also the same, and then substract those dates and get passed time for executing method. There is also another way, to mesure CPU ticks needed to execute your method. Here is a class for that:
public class PerfTimer
{
   [DllImport("Kernel32.dll")]
   public static extern void QueryPerformanceCounter(ref long ticks);

   private long startTime = 0;
   private long stopTime = 0;

   public void Start()
   {
      QueryPerformanceCounter(ref startTime);
   }  

   public void Stop()
   {
      QueryPerformanceCounter(ref stopTime);
   }

   public long Time
   {
      get { return stopTime - startTime; }
   }
}

You will invoke start method before the start of the method and stop after finishing method. And then you will have CPU ticks needed to finish the method. Here is an exaple how to do that:
Int64 ticks = 0;
perfTimer.Start();
YourMethod();  //execute your method
perfTimer.Stop();

ticks = perfTimer.Time;

Debug.WriteLine("ticks: " + ticks);

QueryPerformanceCounter uses CPU clock timer and that's way is more accurate. But be aware that doesn't works properly on all processors, for example Athlon64.

The easiest thing you can do it to use StopWatch class in System.Diagnostics...

Call its method Start before calling that function and call Stop method right after the ending line of function.

It'll give you what you want i.e result in Miliseonds, CPU Ticks using ElapsedTicks, or ElapsedMiliseconds properties....

I hope this will help!

Best Regards,

rizwan.