From: sgccseh@citec.oz.au (Steve Hocking) Subject: Re: X and math co-processor; A Speed up? Date: Wed, 17 Mar 1993 03:42:22 GMT
lcd@umcc.ais.org (Leon Dent) writes:
>I run XFree86 1.2 under Linux 99p6 on a 386sx-25 with 8 megs. On the
>whole I'm satisfied with performance (since I can't afford faster!).
>But after watching two xterms try to keep up with scrolling (one at 2400bps,
>the other with a sort output) I began to wonder if the addition of
>a math chip would be a noticeable addition (i.e. in regards to scrolling).
>This question has come up before, so it might be a good one for the FAQ.
Scrolling is just a function of the bitblt speed and is unrelated
to math speed. Hence the limiting factor (for dumb cards such as the
ET4000) is the bus/card interface. Other cards (such as the S3) can
do their own bltting and are much faster at scrolling.
>Thanks,
>Leon Dent
>lcd@ais.org
--
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"Toddlers are the stormtroopers of the Lord of Entropy"
Stephen Hocking sgccseh@citecuc.citec.oz.au