linux-kernel - Re: [patch 0/3] AHCI Link Power Management

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Message-ID: <20070613090430.GK13747@elf.ucw.cz>
Date:	Wed, 13 Jun 2007 11:04:30 +0200
From:	Pavel Machek <pavel@....cz>
To:	Tejun Heo <htejun@...il.com>
Cc:	Arjan van de Ven <arjan@...ux.intel.com>,
	Kristen Carlson Accardi <kristen.c.accardi@...el.com>,
	jeff@...zik.org, james.bottomley@...eleye.com,
	linux-ide@...r.kernel.org, linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org, Jens Axboe <jens.axboe@...cle.com>
Subject: Re: [patch 0/3] AHCI Link Power Management

Hi!

> >> I'm not sure about this.  We need better PM framework to support 
> >> powersaving in other controllers and some ahcis don't save much
> >> when only link power management is used,
> > 
> > do you have data to support this?
> 
> Yeah, it was some Lenovo notebook.  Pavel is more familiar with the
> hardware.  Pavel, what was the notebook which didn't save much power
> with standard SATA power save but needed port to be completely turned off?

Thinkpad x60. Some one Kristen probably used while developing the
patch :-).
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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