High lag in KDE!

dlworld · Posted: Sat Jun 28, 2003 9:10 pm Post subject: High lag in KDE!

Hey!

I was enjoying my brand new gentoo install... took me too long to emerge everything (X, KDE, kdevelop & OOo included), and everything set up propperly (HD USB, sound card...). But, suddenly, I have an incredible delay between clicking an app, and the moment it starts to exec.

This happens every time, on every app I launch (xterm, emacs...). I click (or invoke on the command shell), and wait 'bout 30 secs. (no joking). The hard disk is NOT working. Then, the app begins to load normally... It's like a 'sleep(30)' line were included in the code of every package :cry:

I did nothing between the moment everything worked ok and now. The only thing I did was unplug my eth0 (I have a laptop, and right now I'm not at home), but I think this cannot be the reason why... anyway, I brought down eth0, buth still the same.

Any suggestion??

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Registered Linux user #184323. "The software said Windows95 or better, so I got a Gentoo..."

mb · Guru Joined: 25 Apr 2002 Posts: 355 Location: Hessen | .de

hej,

append your ip and hostname to your /etc/hosts e.g.

qubex · Posted: Sun Jun 29, 2003 8:02 am Post subject:

I think the network answer hit this one.. I was experiencing minor delays here and there until I plunged into the dev kernels (now at 2.5.73). The scheduler makes a HUGE difference. Are you using any of the kernels with an O(1) scheduler? If not, you might want to try it. DEFINITELY helps with a gui! (What does your CPU do during this time? Can you check it with a monitor like gkrellm?)

Oh yes, also try prelinking. Prelinking (in KDE) sped up opening apps by about 50% or so on my system..

M
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Yes.

dlworld · Posted: Sun Jun 29, 2003 8:21 am Post subject: It worked!

Thanks both for helping!

I added my IP to my /etc/hosts and solved the problem. Now everything is working fine...

Just one more question, qubex... What is this 'prelinking' stuff in KDE? What do I have to configure to speed up my KDE up to a 50%?
_________________
Registered Linux user #184323. "The software said Windows95 or better, so I got a Gentoo..."

qubex · Posted: Sun Jun 29, 2003 1:59 pm Post subject:

rawler · Posted: Tue Jul 15, 2003 11:53 pm Post subject:

Hey

I were just bugging the KDE developers about this issue, until i discovered also Qt applications have this problem, so do xterm(!?). I just had to bow, apologise and start bugging this forum instead. =)

The problem for me (and I'm sure there are more like me) is ad-hoc networking. What if my ip change a lot? (DHCP leases, wireless network etc)

When searching i saw another topic about the same thing as well.
https://forums.gentoo.org/viewtopic.php?t=63439

Now what I would like to know is if this is something specific to gentoo, or if this behaviour exists also in other distros? Can anyone test it?

This problem seriously has to go away, or I'll be forced to run Windows XP on my laptop and that's