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Old 11-20-2010, 11:38 AM   #1
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cpu load tops out and stays there - dont know why

I don't know where to begin with this problem, because I'm not really sure what is causing it. What is happening is that every now and then my cpu load jumps up to 90-100% and just stays there. Programs that typically take a 1-5% of the cpu load start taking up around 40-50% of the total load. Everything bogs down to the point that only a restart fixes it. Does anyone have any idea on what might be happening?

To give a little background, I recently switched from Ubuntu 10.04 with Gnome to a dual boot with Windows XP and Slackware 13.1 with XFCE, Slackware being the main boot. What I'm experiencing now never happened with Ubuntu either.

I will say that it does seem to happen when I stream media (movies and music) online, but it doesn't just start immediately. The increase occurs at irregular times, so I can't pinpoint one thing that causes. Moreover, I can't find a process that might be causing it. Closing programs and killing processes doesn't help, only a reboot.
Old 11-20-2010, 11:57 AM   #2
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Are you checking with top? Run top as root in a terminal:

# top
This will tell you all running processes, plus the percentage of cpu use and memory use. The PID is to the left and you can kill any process from top. Just be careful what you kill or a reboot will be necessary!

I have actually had this problem also when I don't close a program properly from a terminal. Not sure why it happens either. I might see in top that root has a dialog open and its screaming like crazy at 100% use of everything it can get ahold of. When I can't seem to successfully kill that, I end up rebooting.
Old 11-20-2010, 11:59 AM   #3
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This is a wild guess here, but are you using a completely different version of hardware-accelerated display drivers now that you're running Slackware?

I ask this as it seems to occur only when you're streaming media online--and that's an activity that might very well include accelerated video drivers... or perhaps Adobe Flashplayer. Many streaming services utilize flash, so it's possible it's related.

I've heard some horror stories about Flashplayer on linux but, luckily, it's worked well for me overall, including on my Android phone.

Presuming you're running Firefox (not sure how things work w/Chrome), you could try flushing your flash cache/cookies and see if that helps:

Hope this helps.
Old 11-20-2010, 12:52 PM   #4
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I am using the Adobe Flash Player Square Preview release. I thought this might have something to do with it, but like I said, it is irregular when it happens and I don't see any flash-player like process running when it happens.
Old 11-20-2010, 06:26 PM   #5
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Okay, I think I've noticed something that might be causing my problem. The last time my system bogged down (about 5 minutes ago), multiple processes popped up called nepomukservices. As I killed them, they popped back up. I've seen some stuff on the google talking about how this thing can kill, or bog down, systems. Do I need this, or can I disable it?


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