cpufreqd as standard install?

[Matthew Garrett]

On Mon, Mar 05, 2012 at 09:39:34PM -0500, Phillip Susi wrote:

> With correct frequency management, the lower power per instruction of 
> the lower frequencies outweighs the reduced time in the lower C 
> states.

This is (broadly speaking) untrue. There's a bunch of fixed costs that a 
naive P=IV² doesn't take into account. Assuming a fixed amount of work, 
race to idle is almost always the most power efficient strategy.

-- 
Matthew Garrett | mjg59 at srcf.ucam.org