Re: [gentoo-user] what is overloaded my X server?

[Helmut Jarausch]

Thanks David, thanks Zhen!

I'm running the 2.6.31-gentoo-r6 kernel,
xorg-server-1.6.5-r1 and  x11-drivers/ati-drivers-9.11
So, this is quite recent.
I've patched my xorg-server as described here
http://www.mail-archive.com/gentoo-amd64@l.g.o/msg11704.html

I don't run KDE and most of the time everything works just fine.
Then, suddenly X takes much CPU time, the mouse gets nearly
non-responsive. I have killed nearly any user process without any
change. Only killing X itself cures the problem.
Of course, I have reemerged x11-base/xorg-server x11-drivers/ati-drivers
and I have run revdep-rebuild.

Probably I have to somehow compare every lib on the "faulty" machine
to another once which should have identical packages.

Thanks again,
Helmut.

On 26 Nov, daid kahl wrote:
>> 2009/11/25 Helmut Jarausch <jarausch@××××××××××××××××.de>:
>>> Hi,
>>>
>>> on one of several machines and only occasionally
>>> my X-server (/usr/bin/X) takes nearly 100% CPU.
>>> I have killed some applications but this didn't help
>>> unless I killed X itself and restarted it.
>>>
>>> Is there any way to find out what is hogging my X server?
>>>
>
> Another thing worth note is what version of the kernel you are running
> versus how updated X is.  I noticed when I migrated to libxcb under a
> 2.6.27 kernel that X starts running much more slowly for strange cases
> (like when audio is running, for example, X hogs the processor).
>
> I don't have a lot of insight as to how to determine which program
> makes X run hot, except for running very few things in X and starting
> a program and keeping an eye on something like top.
>
> But, in any case, another solution may be to keep the kernel updated
> if you are running the latest X software.
>
> ~daid
>

-- 
Helmut Jarausch

Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany