From: Arjan van de Ven <arjan@linux.intel.com>
To: John Fremlin <john@fremlin.org>
Cc: linux-ide@vger.kernel.org, power@bughost.org
Subject: Re: [PATCH] AHCI powersaving and port-stopping (2.6.22-rc4)
Date: Mon, 11 Jun 2007 07:05:38 -0700 [thread overview]
Message-ID: <466D56B2.5080109@linux.intel.com> (raw)
In-Reply-To: <873b0yvk14.fsf-genuine-vii@john.fremlin.org>
> This is very different from the patch I posted a while ago turning on
> a few bits in the CMD register (ALPE and ASP) and which Intel is
we've not seen a patch that actually works in this area unfortunately.
We know Kristen's patch does work
> apparently now trying. That only saves around 250mW. Tejun's patch
.. and saves close to a watt on a laptop in our measurements
the patch is available on
http://www.kernel.org/pub/linux/kernel/people/kristen/patches/SATA/alpm/
maybe worth a try as well..
next prev parent reply other threads:[~2007-06-11 14:07 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-11 10:54 [PATCH] AHCI powersaving and port-stopping (2.6.22-rc4) John Fremlin
2007-06-11 11:20 ` Peter Ganzhorn
2007-06-11 11:33 ` Peter Ganzhorn
2007-06-11 14:20 ` John Fremlin
2007-06-11 21:49 ` Peter Ganzhorn
2007-06-12 0:43 ` John Fremlin
2007-06-11 14:05 ` Arjan van de Ven [this message]
2007-06-11 19:44 ` Kristen Carlson Accardi
2007-06-12 0:52 ` AHCI aggressive powersaving John Fremlin
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