On 31 Oct 1999, Marcus Sundberg wrote:
> [EMAIL PROTECTED] (Christoph Egger) writes:
>
> > On 30 Oct 1999, Marcus Sundberg wrote:
> > >
> > > Note however that the direct acceleration you get using matroxfb
> > > is 4-6 times faster that the ioctl() based acceleration of the Matrox
> > > KGIcon driver. On a related note - direct acceleration using KGIcon
> > > is also about 50% slower than direct acceleration using matroxfb,
> > > so something must be broken with our mmap() handler.
> > >
> >
> > Could it be, that there is a additional Software-Layer in kgicon?
>
> What "software-layer" are you referring to?
Not to a specific one. It was a common thought up.
> The ioctl() slowness is because of the context-switches required when
> you make a sys-call.
Oh - I assume I am wrong with that.
Christoph Egger
E-Mail: [EMAIL PROTECTED]
