Re: gtkFB performance

[Sven Neumann <sven gimp org>]

Hi,

Peter Gasper <pgasper designadvantage com> writes:

> Well, I compiled the geode specific framebuffer drivers. While there was
> a tiny noticeable speed improvement in redrawing, it is still much too
> slow. Any other ideas? What sort of linux OS environment related things
> could cause poor performance.

The framebuffer driver will not give you any speed improvements unless
you use GTK+-DirectFB and have a gfx card supported by DirectFB. The
linuxfb backend does not take advantage of hardware acceleration. One
thing you should also take care of is that you have mtrr enabled.
Check what /proc/mtrr says and read what the kernel docs say about
mtrr and framebuffer devices.


Sven