[kde-freebsd] KDE Slows down X

[Chuck Burns]

On Tue, Sep 18, 2012 at 9:54 AM, Kris Moore <kris at pcbsd.org> wrote:
> On 09/18/2012 10:02, Andriy Gapon wrote:
>> on 18/09/2012 16:20 Kris Moore said the following:
>>> KDE Team,
>>>
>>> I've gotten a number of reports from our users, that when using KDE
>>> 4.8.4 and leaving the system up for more than 24-48 hours eventually it
>>> causes Xorg to use 100% CPU and the desktop slows down to a crawl. This
>>> is *only* occurring when KDE is the running desktop, Gnome, LXDE and
>>> others don't seem to have this issue. I've confirmed it here as well on
>>> an ATI system, so its doing it on both that and NVIDIA hardware. Logging
>>> out and back in again fixes the problem.
>>>
>>> Has anybody else run into this? Its easy to duplicate, just leave your
>>> desktop session up for a day or two. I tried disabling all the KDE
>>> Energy Savings in their control panel, but it still occurs. Can anybody
>>> else think of any knobs to tweak?
>>>
>> What HW?  Anything interesting in Xorg.log or system messages when the slowdown
>> happens?
>>
>
> Its happening on all the systems we've tested at the iX office. Various
> nvidia cards, Intel i5 / i7 chipsets. On the laptop I tested here it is
> running an ATI radeon 5400 series, i5 Proc. When this occurs, I don't
> see any particular messages in dmesg or Xorg.0.log that would indicate
> the problem. We've tried it with 3D enabled and disabled to try and rule
> that out.
>

I have no such issues on this box.  I generally have -two- KDE
sessions logged in at the same time.. on :0 and :1 respectively.. and
even with both of them logged in, cpu usage stays pretty low..  My
power was fluctuating badly yesterday, so I powered down everything..
I've been back up for about 18hrs now, and the following "top -PCa"
output is pretty much what I always have, unless my daughter is
playing her nickjr.com games (which use flash... then CPU usage will
climb because of nspluginplayer/flash)


CPU 0:  0.7% user,  0.0% nice,  0.7% system,  0.0% interrupt, 98.7% idle
CPU 1:  0.7% user,  0.0% nice,  0.7% system,  0.0% interrupt, 98.7% idle
Mem: 983M Active, 340M Inact, 6151M Wired, 21M Cache, 391M Free
ARC: 5125M Total, 3654M MRU, 500M MFU, 1317K Anon, 53M Header, 916M Other
Swap: 2048M Total, 480K Used, 2047M Free

Plus.. ps aux | grep X produces:

root       1895   0.4  0.6  971676  50072 ??  S     5:11PM    1:58.79
/usr/local/bin/X -br -quiet :0 -nolisten tcp -auth
/var/run/xauth/A:0-Ux6I7d (Xorg)
root       5751   0.0  0.7  955868  58992 ??  S    11:14AM    0:01.21
/usr/local/bin/X -br -quiet :1 -nolisten tcp -auth
/var/run/xauth/A:1-WvE0De (Xorg)

FreeBSD blackbeast.local 9.1-PRERELEASE FreeBSD 9.1-PRERELEASE #0
r240222: Fri Sep  7 21:44:52 CDT 2012
root at blackbeast.local:/usr/obj/usr/src/sys/GENERIC  amd64

Uptime: 11:18AM  up 18:08, 3 users, load averages: 0.07, 0.21, 0.13

As I said, I normally leave it on all the time, and even with 2 Xorg
instances, neither of them ever climb above normal usage..

--
Chuck Burns