[kdepim-users] Cumulative problem?

[Anne Wilson]

On Wednesday 18 February 2009 17:20:53 Anne Wilson wrote:
> On Wednesday 18 February 2009 16:22:21 Mikolaj Machowski wrote:
> > On Tuesday 17 February 2009 14:22:11 Anne Wilson wrote:
> > > I mentioned yesterday that I had changed the Desktop Effects backend
> > > from OpenGL to XRender.  The improvement was immediate, and startling. 
> > > I still want another day or two to be absolutely certain, but it looks
> > > as though most of the performance problems have gone.  KMail doesn't
> > > take those long pauses any more.  X and kwin still top the list of cpu
> > > users, but they now take 10-12% cpu between them.
> > >
> > > I know that other people may have quite different factors, but in the
> > > light of my experience this is something that  is definitely worth
> > > checking out.
> >
> > Thanks for the tip. For the record I describe my experiences after one
> > day of XRender usage:
> >
> > - applications are working much smoother, thanks!
> > - KWin and other 3D effects are slower
> > - even with extra smoothing quality of effects is a bit lower than with
> > OpenGL rendering; for example with OpenGL smoothing I was able to easily
> > read text on web pages or Konsole tabs in Windows present thumbs, with
> > XRender it is hard or in some cases impossible.
> >
> > So, there are some trade-offs but XRender option is very good alternative
> > for people experiencing problems with default OpenGL rendering.
> >
> > Also I noticed that in many cases (but not all!) Konqueror freezing when
> > connection may be caused by nspluginviewer. In big majority of cases I
> > was able to "fix" things with `kill -2`.
>
> I'll file a bug report this evening, all being well, and post the number
> here.
>
> Things do generally continue to be better, although today I've seen a
> number of 2-second freezes - something that hasn't been happening for the
> last couple of days.  Again, it will take some monitoring to find out why.
>
I've had some fairly long delays again today, which is discouraging.  However, 
I've filed  bug report at https://bugzilla.redhat.com/show_bug.cgi?id=486348 
so please add any additional information.  It seems that Intel graphics do 
have some problems, but other graphics cards are not immune, so let's get in 
any info we have, and give the devs a chance to work out what's relevant and 
what isn't.

Anne
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