From: duty@ariel.ucs.unimelb.EDU.AU (Duty Programmer) Subject: Re: X and math co-processor; A Speed up? Date: 16 Mar 1993 13:29:25 +1000
In article <1ntt6iINN5i3@fbi-news.Informatik.Uni-Dortmund.DE> muenx@heike.informatik.uni-dortmund.de (Holger Muenx) writes:
>I've upgraded my VGA graphics adapter from ET3000 to ET4000 since X was not
>usuable with ET3000 (slow scrolling in xterm etc). There was a reasonable
>speed up. I measured the xstones on my system (386/33/128k 8MB) yesterday:
>
> TOTAL 51530 lineStones
> TOTAL 9430 fillStones
> TOTAL 5119 blitStones
> TOTAL 479224 arcStones
> TOTAL 32312 textStones
> TOTAL 18300 complexStones
> TOTAL 13468 xStones
Hmm, this is interesting: i ran xbench last night on my system:
486DX/33/256k 8MB with Tseng Labs MegaEva/2 ET4000 xvga card (1MB) and got:
TOTAL 79463 lineStones better
TOTAL 8465 fillStones worse
TOTAL 3510 blitStones worse
TOTAL 1024090 arcStones better
TOTAL 77343 textStones better
TOTAL 12483 complexStones worse
TOTAL 11493 xStones worse
Given that i have a 486DX and a larger cache, it seems that your ET4000
card is running rings around mine :-(
>If you have a fast graphics adapter and still there is slow scrolling you
>should examine the global resources (ie. your files in the app-defaults dir
>and the .Xdefaults). It is necessary to switch the jump scroll mode
>of xterm on (see the xterm man page).
Agreed; something i haven't really looked into is turning backing-store
and save-unders off and on. Has anyone played with these ? I might have
a go tonight.
rab
========================================================================
Richard Brown | E-mail: rab@tauon.ph.unimelb.EDU.AU
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