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
Date: Wed, 22 Oct 2008 13:12:18 -0700 [thread overview]
Message-ID: <20081022131218.14a1b686@infradead.org> (raw)
In-Reply-To: <1224705925.20069.76.camel@twins>
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
next prev parent reply other threads:[~2008-10-22 20:12 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-22 13:42 Gregory Haskins
2008-10-22 13:47 ` Arjan van de Ven
2008-10-22 14:05 ` Gregory Haskins
2008-10-22 14:07 ` Arjan van de Ven
2008-10-22 14:26 ` Gregory Haskins
2008-10-22 14:36 ` Arjan van de Ven
2008-10-22 19:49 ` Peter Zijlstra
2008-10-22 19:55 ` Arjan van de Ven
2008-10-22 20:05 ` Peter Zijlstra
2008-10-22 20:12 ` Arjan van de Ven [this message]
2008-10-22 13:44 Gregory Haskins
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