lkml.org 
[lkml]   [2003]   [Oct]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] 3/3 Dynamic cpufreq governor and updates to ACPI P-state driver
On Tue, Oct 21, 2003 at 10:38:53AM +0200, Arjan van de Ven wrote:
> On Tue, 2003-10-21 at 04:56, Pallipadi, Venkatesh wrote:
> > Patch 3/3: New dynamic cpufreq driver (called
> > DemandBasedSwitch driver), which periodically monitors CPU
> > usage and changes the CPU frequency based on the demand.
>
>
> it's all nice code and such, but I still wonder why this can't be done
> by a userland policy daemon. The 2.6 kernel has the infrastructure to
> give very detailed information to userspace (eg top etc) about idle
> percentages...... I didn't see anything in this driver that couldn't be
> done from userspace.

I remember Linus forcing a kernel only policy management:
http://www.linux.org.uk/mailman/private/cpufreq/2002-August/000865.html

Also: I think the userspace governor is a workaround to allow userspace
policies.

ciao
--
mattia
:wq!
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2005-03-22 13:58    [W:0.075 / U:0.620 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site