sched: ARM: arch_scale_freq_power
amit.kucheria at linaro.org
Tue Oct 11 07:16:07 UTC 2011
Adding Peter to the discussion..
On Thu, Oct 6, 2011 at 5:06 PM, Vincent Guittot
<vincent.guittot at linaro.org> wrote:
> I work to link the cpu_power of ARM cores to their frequency by using
> arch_scale_freq_power. It's explained in the kernel that cpu_power is
> used to distribute load on cpus and a cpu with more cpu_power will
> pick up more load. The default value is SCHED_POWER_SCALE and I
> increase the value if I want a cpu to have more load than another one.
> Is there an advised range for cpu_power value as well as some time
> scale constraints for updating the cpu_power value ?
> I'm also wondering why this scheduler feature is currently disable by default ?
In discussions with Vincent regarding this, I've wondered whether
cpu_power wouldn't be better renamed to cpu_capacity since that is
what it really seems to describe.
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