From mboxrd@z Thu Jan  1 00:00:00 1970
From: Len Brown <lenb@kernel.org>
Subject: Re: ondemand: cpu load calculation with kernel processus
Date: Thu, 31 May 2007 20:57:45 -0400
Message-ID: <200705312057.45963.lenb@kernel.org>
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On Thursday 31 May 2007 17:57, Nicolas Capit wrote:
> Hello,
> 
> I am running a Debian unstable with a kernel 2.6.21-1-686 and using
> modules powernow_k8 and cpufreq_ondemand.
> 
> My configuration with the ondemand governor seems to work very well
> except when my cpu is busy by the kernel processus kcryptd. The cpu is
> 100% busy but the frequency is not increased.
> (I am using the module dm_crypt to encrypt my home filesystem)
> 
> So my question is:
> Does the ondemand governor calculate the load of the machine with user
> level and *kernel* level processus?

both user and kernel time should count as busy time.

do the cpu stats exposed by top show that you have idle time available?

-Len