cpufreqd as standard install?
mjg59 at srcf.ucam.org
Thu Mar 8 14:47:17 UTC 2012
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
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
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