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SubjectRe: [patch 4/7] sched: convert rq->avg_idle to rq->avg_event
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On Wed, 2011-11-23 at 12:55 +0100, Peter Zijlstra wrote:
> On Tue, 2011-11-22 at 15:22 +0100, Mike Galbraith wrote:
> > We update rq->clock only at points of interest to the scheduler.
> > Using this distance has the same effect as measuring idle time
> > for idle_balance() throttling, and allows other uses as well.
>
> I'm not sure I follow, suppose we're happily context switching away, how
> is the avg distance between context switches related to idle time?

Average idle time can't be larger.

-Mike




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