Re: Measure time

[Der Herr Hofrat]

> 
> Hi,
> 
> ftime() will return milliseconds, but it's considered an obsolete function.
> You could use gettimeofday() (as Richard Johnson suggested) to get
> microseconds and divide them to get milliseconds, although I don't know how
> time critical your routines are.
> 
> If you're still looking for nanoseconds, I'm told you can use
> clock_gettime() but it's still quite unavailable (I've never seen it myself,
> yet).. however even if it was available you possibly wouldn't get a very
> high resolution from it with current systems..
>
clock_gettime() is available in the hard realtime extensions like RTLinux .
The clock resolution is limited to 32ns though - and atleast on X86 I don't
think there is a way to get below that.

hofrat