linux-kernel - RE: [patch 3/6] sched: use rq->avg_event to resurrect nohz ratelimiting

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Message-ID: <26E9B811E137AB4B95200FD4C950886BFF9781E8@orsmsx507.amr.corp.intel.com>
Date:	Fri, 18 Nov 2011 16:51:20 -0800
From:	"Van De Ven, Arjan" <arjan.van.de.ven@...el.com>
To:	Mike Galbraith <efault@....de>,
	Peter Zijlstra <peterz@...radead.org>
CC:	"Siddha, Suresh B" <suresh.b.siddha@...el.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>, Paul Turner <pjt@...gle.com>
Subject: RE: [patch 3/6] sched: use rq->avg_event to resurrect nohz
 ratelimiting

> > Arjan, can we do something smart with the idle governor which already
> > guestimates the idle duration for us?
> 
> That would be great.  Won't help my Intel Q6600 though, the intel_idle
> governor doesn't support it.  Other idle_governor gizmos really need to
> get smarter too.


you're confusing the governor (menu) and the low level hardware driver.