Re: radeon graphic speed regression 2.4 -> 2.6 test7 benh
On Wed, 2003-10-29 at 17:39, Soeren Sonnenburg wrote:
> On Wed, 2003-10-29 at 17:28, Michel Dänzer wrote:
> > On Wed, 2003-10-29 at 09:51, Soeren Sonnenburg wrote:
> > > On Wed, 2003-10-29 at 09:43, Benjamin Herrenschmidt wrote:
> > > >
> > > > You may be encountering a different issue ... (2.6 is usually overall
> > > > faster than 2.4 here,
> > Same here. Soeren, have you verified the difference actually is related
> > to X, e.g. by redirecting the output to a file? Did you conduct both
> > tests as soon after bootup as possible to minimize the influence of
> > caching? ...
> Yes fresh reboot - both this morning.
> A time find ./ >/dev/null says on 2.6. :
> time find >/dev/null
> real 4m27.772s
> user 0m0.855s
> sys 0m11.292s
> while it seems slower than 2.4 (not yet tested) it does not justify the
> 28minutes to display the files :-/
Weird. Maybe this (rather synthetic BTW - it doesn't feel slow doing
'real' work, does it?) test tickles very bad behaviour in something
which has changed radically in the 2.6 kernel, the scheduler maybe?
CONFIG_PREEMPT might make a difference, pity it causes crashes and all
around weird behaviour about as soon as RAM is fully used.
Earthling Michel Dänzer | Debian (powerpc), X and DRI developer
Software libre enthusiast | http://svcs.affero.net/rm.php?r=daenzer