From: "Andreas Herrmann" <andreas.herrmann3@amd.com>
To: "Andi Kleen" <ak@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86_64: prevent auto select of mwait_idle for AMD CPUs
Date: Wed, 11 Apr 2007 16:46:09 +0200 [thread overview]
Message-ID: <20070411144609.GE12476@alberich.amd.com> (raw)
In-Reply-To: <200704102011.18752.ak@suse.de>
On Tue, Apr 10, 2007 at 08:11:18PM +0200, Andi Kleen wrote:
> On Tuesday 10 April 2007 19:24:25 Andreas Herrmann wrote:
> > This fix is needed for AMD family 10h CPUs.
> >
> > It prevents auto select of mwait_idle for AMD CPUs.
> > MWAIT does not enter C-states on family 10h and more
> > power saving is reached by entering C1 with
> > default_idle.
> >
> > The patch also adds an idle=mwait command line option
> > to select mwait_idle for benchmarking.
>
> I already did my own patch earlier. Applied for reference.
>
> -Andi
Great. Your patch is the better solution.
Regards,
Andreas
prev parent reply other threads:[~2007-04-11 14:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-10 17:24 [PATCH] x86_64: prevent auto select of mwait_idle for AMD CPUs Andreas Herrmann
2007-04-10 17:31 ` Andreas Herrmann
2007-04-10 18:11 ` Andi Kleen
2007-04-11 14:46 ` Andreas Herrmann [this message]
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