FW: Re: Xorg with ATI / RV370 sneakily eats half my CPU with empty screen?

[Michel Dänzer]

On Wed, 2009-01-21 at 10:54 +0100, John Clarke wrote:
>  
> > The above indicates this is due to the 'isis' process, not X?
>  
> Is that possible?  isis is my big number-crunching task - I/O from
> files and very occasional (every 20 seconds or so) printf()s to show
> progress.  Absolutely no X calls - not even linked to the X libraries.
> How could that be hammering Xorg?  Moreover Xorg's memory usage seems
> a little extreme -- 400MB?  My screen is otherwise idle.

I was referring to the top output, but I realize now that probably isn't
representative of the problem.

> So far Xorg has clocked up nearly a day of CPU time - that's an extra
> day I'm waiting for my results, so the current setup is unacceptable.
>  
> Can someone please let me know how to enable more logging, or some
> other way to debug this.

I'm not sure there's any logging that could help here, you're probably
better off seeing where the X server process is burning cycles using a
system profiler like sysprof or oprofile.


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