xserver-xorg-video-radeon 6.14.4: X has constant 10 % CPU usage

[Paul Menzel]

Am Dienstag, den 11.09.2012, 14:55 +0200 schrieb Michel Dänzer:
> On Die, 2012-09-11 at 14:42 +0200, Paul Menzel wrote: 
> > 
> > using Debian Sid/unstable with the awesome 3.4.13-1 window manager and
> > Evolution 3.4.3-1, htop shows X to constantly use 10 % of the CPU.
> > Closing Evolution the usage goes back to more or less 0 %.
> 
> I'm not seeing this. Is there something in your Evolution window(s) that
> is constantly repainting, e.g. a spinner in the status bar, a blinking
> cursor, ... ?

Now that you are mentioning it, in the bottom there is the message
»Checking for New Messages« and next to it there is an animation where
something goes around a circle. Canceling that removes X’s CPU usage.

Thanks a lot.

Should I recommend something to the Evolution folks on how to due such
animations? Or is the only way to avoid animations?

> > Could somebody please tell me what component (X driver, DRM, Evolution,
> > Cairo, …) to investigate and how?
> 
> I'd focus on profiling the X server, making sure the profiles show
> symbols, ideally with call graphs. sysprof or perf might work better for
> this than oprofile.

Thanks. Lucky me, that this is not needed now and I can postpone how to
figure out how to start X that way under Debian with GDM.


Michael, thanks as always!

Paul
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