XFCE Terminal resize poor performance

[Michel Dänzer]

On Mon, 2008-05-19 at 23:21 -0700, Ray Van Dolson wrote:
> > oprofile results are here:
> > 
> >   http://www.bludgeon.org/~rayvd/xorg/opreport_l.txt
> >   http://www.bludgeon.org/~rayvd/xorg/opreport_callgraph.txt
> >   http://www.bludgeon.org/~rayvd/xorg/xorg.conf
> 
> In addition:
> 
>   http://www.bludgeon.org/~rayvd/xorg/Terminal.png
> 
> I guess this seems to be resulting from compositor calls.  Other
> applications within XFCE seem to resize just fine -- but not Terminal.
> 
> If I disable the compositor explicitly in xorg.conf window resizes are
> fast again.  So I guess I have a workaround; but should this work with
> compositing on?  Seems to be fine in Gnome's terminal.

Basically, you need to find out why these operations are falling back to
ExaCheckComposite instead of being accelerated. A start could be to
rebuild the radeon driver with

#define RADEON_TRACE_FALL 0

changed to 1 in src/radeon_exa.c and record the resulting fallback
messages in the log file.


-- 
Earthling Michel Dänzer           |          http://tungstengraphics.com
Libre software enthusiast         |          Debian, X and DRI developer