Re: [Dri-devel] Why so difference between root and non root?

[Zilvinas V. <zva...@ca...>]

On Mon, Jun 24, 2002 at 10:52:37PM +0200, Michel D?nzer wrote:
> On Mon, 2002-06-24 at 22:46, Willy Gardiol wrote:
> > 
> > I feel big differences between playng games as root and as non root
> > 
> > i have put the "mode 666" in the dri section in the xfree config file, i have 
> > dri enabled both as root and as non root.
> > 
> > glxgears says:
> > 
> > as root 770 fps
> > as non root 700 fps
> 
> Doesn't seem to make a difference here. Beware that the first numbers
> from glxinfo are unreliable, are these after letting it run for a while?
> 
> > and games are croppy as non root and perfect as root.
> 
> Maybe some of them take advantage of the root credentials to enhance
> their scheduling parameters?


Well it depends :))) not that scheduler make root processes to be
scheduled first ;) more often ... the difference is rather the nice
level of Xserver ! mine is -10 by default (debian). So if you run xdm
which is niced at -10 by default, and thus Xserver too. 

Sounds like all the difference would be here :)
> 
> 
> -- 
> Earthling Michel D?nzer (MrCooper)/ Debian GNU/Linux (powerpc) developer
> XFree86 and DRI project member   /  CS student, Free Software enthusiast
> 
> 
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-- 
Zilvinas Valinskas