View All Products
Compute
Storage
Networking
Databases
Services
Developer Tools
Industries
Pricing
Community
Engage With Us
Community ▶ Questions ▶ Ubuntu 10.04.1 LTS And High CPU Usage From kswapd0
Log in to Ask a Question

Ubuntu 10.04.1 LTS And High CPU Usage From kswapd0

performance

I've been noticing high cpu utilization from kswapd0 on my Ubuntu 10.0.4.1 VPS. The hight utilization slows the system down a great deal and for long periods of time ( server load at 6 or higher )

I was using the recommend Paravirt kernel for this installation. I read that newer kernels had a patch for the kswapd0 high cpu issue, so I am now using the 2.6.39-linode33 kernel and I am not seeing any issues with kswapd0.

Has anyone else come across high cpu utilization for kswapd0 on their Ubuntu 10.04 installations?

Also is it advisable to run the 2.6.39-linode33 kernel on 10.04? Any recommendations appreciated.

4 Replies

You should be using Latest 3.0. The 2.6.39 series is affected by the CVE-2012-0056 vulnerability and you should not be using it at all.

Why aren't you on 3.0? The linode 2.6.39 kernel is deprecated (http://www.linode.com/kernels). You might want to consider upgrading to the "Latest 3.0" branch. Also, 10.04.4 is the latest LTS, so you may want to consider running updates :)

How do I upgrade from 10.04.1 to 10.04.4? I've tried apt-get update/upgrade

I think there could be a lot of different things causing this.

I also have been dealing with this problem over the past few days, and for me I think it was that I had a memory leak and my linode was running out of memory. When that happened, it would just hit swap and the I/O would spike.

I don't know if I've fixed it yet, but what has helped me is running 'htop' to see what processes are taking up a lot of memory and seeing how to optimize those.

Reply

Please enter an answer
Tips:

You can mention users to notify them: @username

You can use Markdown to format your question. For more examples see the Markdown Cheatsheet.

> I’m a blockquote.

I’m a blockquote.

[I'm a link] (https://www.google.com)

I'm a link

**I am bold** I am bold

*I am italicized* I am italicized

Log in to Reply
Community Code of Conduct