Re: High CPU load when machine is idle (related to PROBLEM: Unusually high load average when idle in 2.6.35, 2.6.35.1 and later)

Kyle McMartin
2010-11-09T18:55:30Z

On Fri, Oct 29, 2010 at 09:42:23PM +0200, Peter Zijlstra wrote:
>
> not tested other than compile, but how does that look...?
>

Hi Peter,

I finally got around to building a test kernel for a user who had been
reporting this against F-14 (2.6.35) but they report there's not much
improvement.

Sorry. :/

<quote>
Date: Tue, 09 Nov 2010 12:46:53 -0600
From: Michael Cronenworth <mike@cchtml.com>
To: test@lists.fedoraproject.org
Subject: Re: Virtually impossible to keep load under 0.5 on idle desktop with
F14+kms

On 11/09/2010 11:55 AM, Kyle McMartin wrote:
> http://kyle.fedorapeople.org/kernel/2.6.35.6-52.sched1.fc14/

Running this kernel is not any better. After leaving my system idle for
10 minutes I finally saw it dip below 0.10, but after leaving the
computer, and coming back 10 minutes later, I see a load of 0.25. No
programs running.

Before I hit "send" on this message, I ran uptime again and got this:
$ uptime
12:45:24 up 32 min, 3 users, load average: 0.82, 0.43, 0.34

Thunderbird was the only program running. 99.8% idle.
</quote>

regards, Kyle