Re: X under heavy load
On Fri, Oct 14, 2005 at 09:29:26PM +0200, Marc Br?nink wrote:
> Hiho,
>
> I'm generating a map. So it has nothing to do with X. However does
> someone have a clue how to track this down?
>
> Thanks
> Marc
>
>
> On Freitag, Okt 14, 2005, at 20:45 Europe/Berlin, Antonio Paiva wrote:
>
> >Marc,
> >
> >I don't know exactly what you are using but I can tell you that I
> >frequently do computationally demanding tasks in my work desktop and
> >home laptop (both running Debian Sarge) and X continues working fine.
> >While I'm waiting I frequently browse the web without major changes in
> >speed. Maybe your program is "X intensive"...
As another possibility, the program may be memory demanding. Anything
that induces substantial amounts of swapping will slow down X (and
everything else too -- using a console won't be much better).
You can use ``ps aux'' to find out about the memory hunger of your
processes -- look at the %MEM column for a general overview and check
the RSS and VSZ columns. A process with a size exceeding the amount
of physical RAM (check /proc/meminfo) on the system usually means a
noticeable slowdown (the amount of perceived and of real slowdown hugely
depends on the process' memory access patterns, though).
> >Antonio
> >
> >Marc Br?nink wrote:
> >>Hi,
> >>if I put my 500 Mhz machine under heavy load, X doesn't respond
> >>anymore. Actually it works, but it's much to slow. I want to do some
> >>hard calculations in background AND use X. I guess this should be
> >>possible, shouldn't it?
> >>I tryed to use nice 20 heavy-load-process but this didn't help a bit.
> >>Is process scheduler of Linux just crap? Is this a problem of X? What
> >>should I try next?
> >>Thanks
> >>Marc
> >
> >--
> >Ant?nio Rafael C. Paiva
> >
> >Graduate student
> >Computational NeuroEngineering Laboratory
> >Electrical & Computer Engineering Department
> >University of Florida
> >Gainesville, FL 32611
> >WWW: arpaiva.webhop.net
> >
> >
> >--
> >To UNSUBSCRIBE, email to debian-user-REQUEST@lists.debian.org with a
> >subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
> >
>
--
+- Jan T. Kim -------------------------------------------------------+
| *NEW* email: jtk@cmp.uea.ac.uk |
| *NEW* WWW: http://www.cmp.uea.ac.uk/people/jtk |
*-----=< hierarchical systems are for files, not for humans >=-----*
Reply to: