Re: [patch 6/7] sched: use rq->avg_event to resurrect nohzratelimiting

[Peter Zijlstra]

On Tue, 2011-11-22 at 15:24 +0100, Mike Galbraith wrote:
> Entering nohz at high frequency eats cycles, ratelimit it
> just as we do idle_balance(), and for the same reason.

ideally we should have some per-arch information on how costly it
actually is to enter/leave nohz.

Also, can you confirm, or otherwise run this by whoemever reported that
power-usage regression the last time we tried this?

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/