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

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Message-ID: <1321676101.6307.3.camel@marge.simson.net>
Date:	Sat, 19 Nov 2011 05:15:01 +0100
From:	Mike Galbraith <efault@....de>
To:	"Van De Ven, Arjan" <arjan.van.de.ven@...el.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	"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

On Fri, 2011-11-18 at 16:51 -0800, Van De Ven, Arjan wrote:
> > > 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.

Ok, I just saw that intel_idle_probe() says go away.

[    2.479695] intel_idle: MWAIT substates: 0x20
[    2.484144] intel_idle: does not run on family 6 model 15

	-Mike

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