On Tue, 14 Dec 2010 03:51:40 -0500 (EST)
Jaroslav Skarvada <[email protected]> wrote:

> PowerTOP should not recommend ondemand when p4-clockmod is used. 
> AFAIK the p4-clockmod is autoloaded for thermal purposes, but the
> latency is too high for ondemand. There is RH bugzilla on it:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=497167
> 
> Proposed patch is attached. The idea is not to suggest ondemand
> if there is at least one p4-clockmod driver found as the
> suggestion is: "Enable the ondemand cpu speed governor for all 
> processors...".
> 
> Jaroslav

kernel/cpu/cpufreq/Kconfig says that p4-clockmod shouldn't be used at
all, SpeedStep should be used instead,  which would be the acpi-cpufreq
driver, right?
So maybe powertop should suggest using that (if CPU supports it)
instead of p4-clockmod?

Best regards,
--Edwin

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