Re: CPU time for Win32 & GNAT

["Pat Rogers" <progers@classwide.com>]

"Ted Dennison" <dennison@telepath.com> wrote in message
news:tkDx7.26129$ev2.34679@www.newsranger.com...
> In article <oyCx7.10592$Lz2.3580572774@newssvr30.news.prodigy.com>, Pat
Rogers
> says...
> >
> >"Gautier" <gautier_niouzes@hotmail.com> wrote in message
> >news:17cd177c.0110120321.3077bccf@posting.google.com...
> >> Does someone know how to obtain the CPU time (or a CPU
> >> duration...) for Win32 (under GNAT) in a simple way ?
> >> The program doesn't use tasking and no more resolution
> >> than the one of Duration is needed for time spans.
> >> I'm sure someone has a ready-made function in his/her toolbox...
> >
> >Better yet, why not use the Pentium ReadTimeStampCounter (RDTSC)
> >instruction?  It samples the register that keeps a count of the number of
> >clock cycles since boot-up.  Given the exact clock speed you can compute
> >exactly how much time has elapsed between two samples.
>
> I think he wants elapsed CPU time for his process, not for the whole
system.
> That would essentially just give him wall time (really really precise wall
> time).
>
> Is that instruction avalilable in ring 3?

I can't say.  (I know I can trust you -- I just don't know!  :-)