Re: Profile a widget style

Olivier Goffart <[email protected]> Tue, 31 Aug 2010 08:00:33 +0200
Newsgroups gmane.comp.kde.devel.optimize
Message-ID <[email protected]>
Le Monday 30 August 2010, Mantia Andras a =E9crit :
> Hi,
> =

>  if you missed my blog (http://www.kdedevelopers.org/node/4318), here is
> the summary: I found that Oxygen + nvidia driver + certain nvidia cards
> cause high CPU usage on XOrg. Plastique doesn't cause it.
> The question: anyone has an idea how could I profile what goes wrong?


Hi,

Which Qt graphicssystem do you use?  You may try to use raster instead of t=
he =

native X11 backend.

I guess oxygen triggers primitives that are not optimized.  I know for exam=
ple =

that Oxygen draws a lot of gradian which can be slow  (And Qt X11 graphics =

system does not use the latest X11 extensions to make it fast) =



But to be honest, I'm not an expert in that area.

-- =

Olivier