Date: Wed, 22 Oct 2008 13:12:18 -0700
From: Arjan van de Ven <arjan@infradead.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Gregory Haskins <ghaskins@novell.com>,
       Steven Rostedt <rostedt@goodmis.org>, Ingo Molnar <mingo@elte.hu>,
       LKML <linux-kernel@vger.kernel.org>,
       Jon Masters <jonathan@jonmasters.org>
Subject: Re: sched: deep power-saving states
Message-ID: <20081022131218.14a1b686@infradead.org>
In-Reply-To: <1224705925.20069.76.camel@twins>
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On Wed, 22 Oct 2008 22:05:25 +0200
Peter Zijlstra <peterz@infradead.org> wrote:

> > 
> > in fact you already have this *exactly* today; this isn't future
> > technology.
> 
> Interesting, what knob do I turn to get idle=poll dynamically?

you ask PMQOS for a 0 usec latency, and you just get idle=poll behavior;
you can do this from the kernel, or, as root, from userland.


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org
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