Re: [PATCH] timers: Introduce the concept of timer slack for legacytimers

From: Arjan van de Ven
Date: Thu Jan 14 2010 - 04:53:37 EST

On Wed, 13 Jan 2010 22:07:55 -0800
Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> hm.
> Have you any feeling for how much power this sort of thing saves? I
> guess "change in interrupts per minute" would be easy to measure.

depends on what kind of system obviously. For a laptop, it's not all
that much, but for a cellphone it can be easily 30% to 40% extra
standby power.... a few wakeups per second already is a huge power
delta for those.

Arjan van de Ven Intel Open Source Technology Centre
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