Re: [Xen-devel][PATCH] Change default cpufreq governor from performance to ondemand

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 11/12/2008 11:52, "Liu, Jinsong" <jinsong.liu@xxxxxxxxx> wrote:

> Sorry, I didn't speak clear the reason why we change default cpufreq governor
> from 'performance' to 'ondemand'.
> We send out user PM interface patch yesterday, at that time the default
> governor is 'performance', which is similar to the default setting of native
> linux.
> However, since we didn't send out xenpm tools until now, and considering
> people want to test 'ondemand' governor, we temporarily set default governor
> as 'ondemand', as what we did recently.
> After we send out xenpm tools, we will set default governor as 'performance'
> again. At that time, user can use xenpm tool to change cpufreq governor to
> 'ondemand' on-the-fly if he want.

Perhaps a boot-time option to set the initial default would be better?

 -- Keir



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