Elapse time

[stm]

Hi,

I'm doing a performance test on calling a function in different situation. I record the start and end time to a DateTime variable, and calculate the no. of seconds elapsed using Datediff function.

However, I found that it only accurate to seconds, if the different is less than 1, it will became 0. How can I measure the time in more accurate way?

Thx!

[MrPolite]

Hi,

I'm doing a performance test on calling a function in different situation. I record the start and end time to a DateTime variable, and calculate the no. of seconds elapsed using Datediff function.

However, I found that it only accurate to seconds, if the different is less than 1, it will became 0. How can I measure the time in more accurate way?

Thx!

hmm how are you using DateTime as a counter? show me I wanna know
I think the correct way to do this is to use performance counters. I dont really know how to do this with .NET but I think you can use these apis
QueryPerformanceFrequency
QueryPerformanceCounter


umm anyways I did this in C# with the TimeSpan object and it works fine, gives the miliseconds too. Try using it...

a = new TimeSpan(DateTime.Now.Ticks);
b = new TimeSpan(DateTime.Now.Ticks);

b= b.Subtract(a);
MessageBox.Show (b.Seconds.ToString() + " " + b.Milliseconds.ToString());

[stm]

HoHo...Don't laugh me.

I just record the current time using Now, and Datediff.........

[MrPolite]

HoHo...Don't laugh me.

I just record the current time using Now, and Datediff.........

oh got you... I wasnt laughing at you haha
umm and THAT didn't give you the milliseconds?

[stm]

yes and it helps.......thx a lot!