Xorg.bin: 99% CPU

[Patrick Dupre]

Hello,

Thank for the comments.

Actually, it seems to be strongly related to  xmgrace.
If I open 2 times xmgrace, Xorg.bin move up to 99%!
In addition, some functions of xmgrace are very slow while it was
OK a while ago, may fc19 or fc18.

I could report a bug, but I would like to be able to send instructions
relative to the reproducibility.

===========================================================================
 Patrick DUPRÉ                                 | | email: pdupre at gmx.com
 Laboratoire de Physico-Chimie de l'Atmosphère | |
 Université du Littoral-Côte d'Opale           | |
 Tel.  (33)-(0)3 28 23 76 12                   | | Fax: 03 28 65 82 44
 189A, avenue Maurice Schumann                 | | 59140 Dunkerque, France
===========================================================================


> Sent: Wednesday, October 07, 2015 at 8:58 PM
> From: stan <stanl-fedorauser at vfemail.net>
> To: "Patrick Dupre" <pdupre at gmx.com>
> Cc: fedora <users at lists.fedoraproject.org>
> Subject: Re: Xorg.bin: 99% CPU
>
> On Wed, 7 Oct 2015 20:21:05 +0200
> "Patrick Dupre" <pdupre at gmx.com> wrote:
> 
> > Why Xorg.bin uses 99% of the CPU?
> 
> > Any idea?
> 
> I used to get that when the system was dealing with a lot of open tabs
> in firefox.  It seems that tabs in firefox continue refreshing even
> when they are not visible.  And so X had to deal with all the message
> passing and memory munging this required.  I think it was a form of
> thrashing, as competing tasks were swapped in and out of execution.
> 
> I haven't seen it for a while.  So maybe firefox doesn't do that
> anymore, or the version of X deals better.  Or the kernel.  I'm running
> a custom compiled 4.3 kernel, maybe that's the difference.
> 
> That it is only occurring on your system, suggests it is something
> about your use case or hardware that is the culprit, in concert with
> the OS.  That is, you've hit a corner case.
>