Re: metacity slowness
On Sun, 2003-08-24 at 04:07, Marek Habersack wrote:
> On Sun, Aug 24, 2003 at 02:58:20AM +0200, Michel Dänzer scribbled:
>
> > > > http://bugs.xfree86.org/show_bug.cgi?id=414 might be related, as the
> > > > radeon driver doesn't accelerate the RENDER extension yet.
> > > Note this comment http://bugs.xfree86.org/show_bug.cgi?id=414#c18 - it does
> > > seem to confirm that the metacity itself might be the cause of the slowness.
> >
> > I fail to see how metacity can have an impact on x11perf, it certainly
> > doesn't here.
> That's not what I meant by pointing it out, but rather the comment the guy
> makes about metacity being sluggish.
Because of the seemingly uninformed remark about it and xmms?
> The x11perf is just for comparison with some model system, I presume.
If the bandwidth to the framebuffer is low, that may explain at least
some of the slowness you're seeing (apps using the RENDER extension slow
to handle expose events).
> And the comparison of sawfish with metacity makes it quite clear that
> metacity is slow. With sawfish when flipping workspaces I can hardly see
> the desktop+windows redraw while with metacity I can easily make out the
> three phases - original workspace is "erased" with the root window
> redraw, then on the new workspace first the windows frames are drawn
> (and it's really visible..) and then the window interiors, with a
> flicker. In fact, when switching to a workspace with maximized mozilla
> window displaying a largish document I'm pretty much positive that the
> window interior is redrawn twice. Anyhow, not knowing what's the cause, I
> know that metacity is really, really slow on a fast system :(
The thing is that different people can have very different perceptions
of what's 'fast' and what's 'slow'. I can't seem to tell much difference
between metacity and sawfish here (except that opaque window resizing
works much better with metacity :), YMMV.
--
Earthling Michel Dänzer \ Debian (powerpc), XFree86 and DRI developer
Software libre enthusiast \ http://svcs.affero.net/rm.php?r=daenzer
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