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Re: [TEKNIK] Har Linux mon support for SIS760GX



On Mon, 17 Apr 2006 18:17:19 +0200
Mogens wrote:

> Fri 14. donald_j_axel wrote:
> > 1950 frames in 5.0 seconds = 390.000 FPS
> 
> Ikke specielt hurtigt, men for et priskompromis ikke dårligt.
> Mit aldrende Leadtek nVidia 5700LE baserede AGP:
> 5411 frames in 5.0 seconds = 1082.200 FPS
> 6343 frames in 5.0 seconds = 1268.600 FPS
> 6890 frames in 5.0 seconds = 1378.000 FPS
> 8259 frames in 5.0 seconds = 1651.800 FPS
> 6497 frames in 5.0 seconds = 1299.400 FPS
> 6261 frames in 5.0 seconds = 1252.200 FPS
> 6474 frames in 5.0 seconds = 1294.800 FPS
> 7092 frames in 5.0 seconds = 1418.400 FPS

OBS! I første omgang installerede Scientific Linux (SL) en generel
vesa X11-driver. Jeg opdagede, at der er en SiS driver, se
/usr/X11R6/lib/X11/doc/README.SiS, og jeg har fået den til at køre
en enkelt gang. Den kører lidt flere frames/sec (500 FPS) men ikke
så mange som Leadtek nVidia.

Forfatteren til X11 "sis_drv.o" driveren forklarer:

Anvendelse af SiS-760 chipsættet uden dedikeret, lokal video RAM,
det giver ikke god performance, fordi AMD-CPU'en kører intern
memory-control (godt for CPU) og derfor skal video-controlleren ud
på system-bussen for at arbejde med video RAM'en med mindre den
altså har lokal RAM.

Der var jo så alligevel andre fordele ved sis_drv.o, fx. har
mplayer flere features når den kører med "sis_drv.o" Der er flere
interessante ting i dette emne:-) 

Det generelle resultat er at hvis nogen vil have en hurtig
spille-maskine, så skal der være rigtig dedikeret video RAM hvis
det er denne AMD-sempron64 CPU ellers skal der være en extern
memory-controller.






-- 
donald_j_axel donax snabela get2net.dk -- http://d-axel.dk/


 
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