Date: Sat, 24 Jan 1998 16:38:52 -0500 From: Charles Henrich <henrich@crh.cl.msu.edu> To: dyson@FreeBSD.ORG Cc: hackers@FreeBSD.ORG Subject: Re: fastvid lkm Message-ID: <19980124163852.02128@crh.cl.msu.edu> In-Reply-To: <199801240343.WAA00438@dyson.iquest.net>; from John S. Dyson on Fri, Jan 23, 1998 at 10:43:50PM -0500 References: <19980123223708.26224@crh.cl.msu.edu> <199801240343.WAA00438@dyson.iquest.net>
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On the subject of Re: fastvid lkm, John S. Dyson stated:
> Charles Henrich said:
> > How can one tell if its actually helping or hindering?
> >
> You can turn on the X benchmark mode, it should show the speed improvment (I
> see a 3-4X improvement for certain CPU/Video transfers.) Also, text mode
> scrolling should be faster. Some bioses might set the memory type registers
> correctly. Some do not (mine doesn't.) There was a bug in my initial
> version, in that the memory type was not being set correctly for the video
> mem (it was being set to 0, instead of 1 (write combining).) The ISA memory
> hole video mem was being set correctly though.
>
> I don't have time to look at it right now. Sorry... Lars is supporting it
> though :-).
Running the lkm makes my display quite unhappy, I guess it isnt for my
motherboard/graphics card :)
-Crh
Charles Henrich Michigan State University henrich@msu.edu
http://pilot.msu.edu/~henrich
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