[CentOS] Clunky Xorg with latest 6.7 upgrade?

Fri Aug 14 10:39:17 UTC 2015
Bill Maltby (C4B) <centos4bill at gmail.com>

On Fri, 2015-08-14 at 06:02 -0400, Bill Maltby (C4B) wrote: 
> On Thu, 2015-08-13 at 23:51 -0700, Gordon Messmer wrote:
> > On 08/13/2015 02:44 PM, Bill Maltby (C4B) wrote:
> > > Top shows
> > >    PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
> > > 32160 root      20   0  259m 104m  22m R 76.5  1.3 559:07.79 Xorg
> > > 23391 hardtolo  20   0 6293m 215m  26m S 16.9  2.7  21:49.86 java
> > 
> > Well, what's process 23391, 
> <snip>

> > and does Xorg stop using a lot of CPU time 
> > if you terminate it?
> 
> <snip>


> Ended the trade screens applet and tried selection of a region with
> ksnapshot - same results were a lag and jerkiness. I checked all the
> open FF windows to see if I had other known hog applets runing but
> didn't see any.
> 
> Trying shutting down FF and restarting, which used to provide some
> temporary relief - like Alka-seltzer.
> 
> After shutting down FF and before restarting FF, region selection still
> lagging and jerky. Top shows
>   PID USER     PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
> 32160 root     20   0  221m  75m  13m R 68.7  1.0   1192:08 Xorg
>  2025 hardtolo 20   0 1479m 281m  78m R 14.6  3.6 226:35.72 soffice.bin
>  1035 wild-bil 20   0 1116m 315m  43m S  7.6  4.0 196:15.91 firefox
> 
> The FF above is different user, with which there are generally no
> effects because of low usage. Xorg dropped from 76.5% at the time I
> posted yesterday. So even with that heavy user's FF shutdown, Xork (a
> new snigglet?!) is taking a big slice of CPU time when the only thing
> happening interactively is me editing this reply.

Ended the above FF, ksnapshot selection still lagging and jerky, CPU
dropped another few points to hover around 53% or so - some improvement.

Ah! I just noticed that user still has the check for updates showing on
the panel. I'll disable it, log out and in and see what X shows for CPU
usage then.

Ending Evolution dropped CPU usage on Xorg down another 3% to ~50%.

Anyway, logging the user out and back in, the panel shows no checking
for updates. Ksnapshot selection for the other user still lagging and
jerky. CPU usage now bouncing 49%-53% with only this message composing
going on and the other user on the other X session just sitting with
open terminals and some openoffice spreadsheets open. soffice.bin
showing about ~9%-~12% CPU usage.

> 
> <snip>

Bill