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Old 02-18-2011, 03:16 PM
Georgi Kourtev
 
Default Effects vs. Screen performance

Hello friends,

Since quite awhile I have a continuous problems with the desktop effects (which
I like a lot) and the screen performance. Although my PC is quite OK in terms
of graphical card. processor speed and so on, but as soon as I enable the
desktop effects the screen refresh rate becomes so slow that I need often to
minimise the window to get what is inside...

This issue appeared after I had 10.04 installed and onwards (currently I am
with 10.10). It was not the case with previous versions of Kubuntu. Some
people suggest to simply disable the effects, but I like the KDE effects and
would like to keep them running.

I'll appreciate if some can share ideas on how to solve this once and forever.
Cheers,
gk

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Old 02-18-2011, 03:33 PM
Bruce Marshall
 
Default Effects vs. Screen performance

On Friday, February 18, 2011, Georgi Kourtev wrote:
> This issue appeared after I had 10.04 installed and onwards (currently I
> am with 10.10). It was not the case with previous versions of Kubuntu.
> Some people suggest to simply disable the effects, but I like the KDE
> effects and would like to keep them running.
>
> I'll appreciate if some can share ideas on how to solve this once and
> forever. Cheers,
> gk

Have you run 'top' to see if something is tying up your CPU?

Or 'free' to see if you are running low on free space?

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Old 02-18-2011, 09:59 PM
Waleed Hamra
 
Default Effects vs. Screen performance

On 02/18/2011 06:33 PM, Bruce Marshall wrote:
> On Friday, February 18, 2011, Georgi Kourtev wrote:
>> This issue appeared after I had 10.04 installed and onwards (currently I
>> am with 10.10). It was not the case with previous versions of Kubuntu.
>> Some people suggest to simply disable the effects, but I like the KDE
>> effects and would like to keep them running.
>>
>> I'll appreciate if some can share ideas on how to solve this once and
>> forever. Cheers,
>> gk
>
> Have you run 'top' to see if something is tying up your CPU?
>
> Or 'free' to see if you are running low on free space?
>

yeah, both checks, and run glxgears while effects are off, and system is
not overly busy, record the frame rate, then enable effects and
compare... sometimes the computer can be slow even with no effects, but
it wouldn't be obvious. if that's the case, then there needs to be more
digging, which most probably might end up as a process choking the
processor as Bruce suggested.

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Manager of Hamra Information Systems

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Old 02-21-2011, 05:23 AM
Georgi Kourtev
 
Default Effects vs. Screen performance

On Friday, February 18, 2011 18:33:32 Bruce Marshall wrote:
> On Friday, February 18, 2011, Georgi Kourtev wrote:
> > This issue appeared after I had 10.04 installed and onwards (currently I
> > am with 10.10). It was not the case with previous versions of Kubuntu.
> > Some people suggest to simply disable the effects, but I like the KDE
> > effects and would like to keep them running.
> >
> > I'll appreciate if some can share ideas on how to solve this once and
> > forever. Cheers,
> > gk
>
> Have you run 'top' to see if something is tying up your CPU?
>
> Or 'free' to see if you are running low on free space?

Both does not show anything worrying: see below the output.

FROM free
--------------
total used free shared buffers cached
Mem: 2051240 1904628 146612 0 40064 1261936
-/+ buffers/cache: 602628 1448612
Swap: 6142972 0 6142972

---------
FROM top
-----
gkourtev@gkourtev-laptop:~$ top
top - 08:21:31 up 26 min, 2 users, load average: 0.77, 0.87, 0.91
Tasks: 167 total, 2 running, 165 sleeping, 0 stopped, 0 zombie
Cpu(s): 2.9%us, 1.6%sy, 0.0%ni, 95.4%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 2051240k total, 1894048k used, 157192k free, 40064k buffers
Swap: 6142972k total, 0k used, 6142972k free, 1230000k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1244 root 20 0 114m 44m 19m S 4 2.2 3:19.88 Xorg
2306 gkourtev 20 0 124m 21m 15m S 2 1.1 0:03.39 konsole
1617 gkourtev 20 0 214m 41m 23m S 1 2.0 1:47.81 kwin
1631 gkourtev 20 0 346m 69m 31m S 1 3.5 0:31.18 plasma-desktop
7 root 20 0 0 0 0 S 0 0.0 0:02.97 ksoftirqd/1
1129 root 15 -5 0 0 0 S 0 0.0 0:01.12 kslowd000
1521 root 20 0 20924 4940 2844 S 0 0.2 0:01.15 upowerd
1593 gkourtev 20 0 105m 18m 14m S 0 0.9 0:00.48 kwalletd
2452 gkourtev 20 0 2620 1144 840 R 0 0.1 0:00.16 top
1 root 20 0 2868 1684 1204 S 0 0.1 0:00.71 init
2 root 20 0 0 0 0 S 0 0.0 0:00.00 kthreadd
3 root 20 0 0 0 0 S 0 0.0 0:00.18 ksoftirqd/0
4 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0
5 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/0
6 root RT 0 0 0 0 S 0 0.0 0:00.01 migration/1
8 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/1
9 root 20 0 0 0 0 R 0 0.0 0:00.05 events/0
10 root 20 0 0 0 0 S 0 0.0 0:00.53 events/1
11 root 20 0 0 0 0 S 0 0.0 0:00.00 cpuset
12 root 20 0 0 0 0 S 0 0.0 0:00.00 khelper
13 root 20 0 0 0 0 S 0 0.0 0:00.00 netns
14 root 20 0 0 0 0 S 0 0.0 0:00.00 async/mgr
15 root 20 0 0 0 0 S 0 0.0 0:00.00 pm
17 root 20 0 0 0 0 S 0 0.0 0:00.00 sync_supers
18 root 20 0 0 0 0 S 0 0.0 0:00.00 bdi-default
19 root 20 0 0 0 0 S 0 0.0 0:00.00 kintegrityd/0
20 root 20 0 0 0 0 S 0 0.0 0:00.00 kintegrityd/1
21 root 20 0 0 0 0 S 0 0.0 0:00.20 kblockd/0
22 root 20 0 0 0 0 S 0 0.0 0:00.00 kblockd/1
23 root 20 0 0 0 0 S 0 0.0 0:00.00 kacpid
24 root 20 0 0 0 0 S 0 0.0 0:00.00 kacpi_notify
25 root 20 0 0 0 0 S 0 0.0 0:00.00 kacpi_hotplug
26 root 20 0 0 0 0 S 0 0.0 0:00.00 ata_aux
27 root 20 0 0 0 0 S 0 0.0 0:00.06 ata_sff/0
28 root 20 0 0 0 0 S 0 0.0 0:00.05 ata_sff/1
29 root 20 0 0 0 0 S 0 0.0 0:00.01 khubd


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