demand based power management

[sumeet linux]

On Thu, Aug 12, 2010 at 8:50 PM, John Mahoney <jmahoney at waav.com> wrote:
> On Thu, Aug 12, 2010 at 3:22 AM, er krishna <erkrishna at gmail.com> wrote:
>> Yes its fine, I am just wandering if this option is enabled by bios ? How ?
>
> In sys these values are listed on a per cpu basis.
>
> To list possible governors:
> cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_governors
>
> To view current governor
> cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor


To enable the demand base power management in kernel, You can set the
"Ondemand Governor" as an active governor in kernel with below
command,

echo ondemand > /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor



>
> Also, if using gnome you can add to your panel the "CPU Frequency
> Monitor" which allows the user to adjust these settings
>
> --
> John
>
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