From: Chuck Ebbert <cebbert@redhat.com>
To: Arjan van de Ven <arjan@linux.intel.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Liunx power consumption on laptops -- Enormous progress in the last few months
Date: Fri, 06 Jul 2007 12:34:20 -0400 [thread overview]
Message-ID: <468E6F0C.1090601@redhat.com> (raw)
In-Reply-To: <468D4D82.8030009@linux.intel.com>
On 07/05/2007 03:58 PM, Arjan van de Ven wrote:
> While it's hard to show "one size fits all" number/percentage, we took a
> bog standard Lenovo T61 laptop (no vendor preference, they just were the
> first one to deliver a model with the latest Intel chipset to our cubes)
> and measured the effect. The baseline we used was a 32 bit Fedora 7
> installation; note that this already has the tickless kernel, but is
> lacking several of the key bugfixes that came afterwards.
>
> We've put our measurements in a graph at
>
> http://ww.linuxpowertop.org/results.php
>
> With kernel fixes and features, the power consumption of this laptop
> went from 21.06 Watts to 18.25 Watts; with 2 additional userspace fixes
> the power consumption ended up at 15.5 Watts.
>
Where is the ondemand-fix.patch? I can't find any link to it.
next prev parent reply other threads:[~2007-07-06 16:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-05 19:58 Liunx power consumption on laptops -- Enormous progress in the last few months Arjan van de Ven
2007-07-06 16:34 ` Chuck Ebbert [this message]
2007-07-06 16:35 ` Arjan van de Ven
2007-07-06 17:02 ` Dave Jones
2007-07-09 21:42 ` Valdis.Kletnieks
2007-07-09 21:46 ` Dave Jones
2007-07-06 18:02 ` Chuck Ebbert
2007-07-09 17:55 ` Bill Davidsen
2007-07-10 18:59 ` Pavel Machek
2007-07-11 12:42 ` PCI devices power management, w/o sysfs? [Was: Re: Liunx power consumption on laptops ...] Richard Mittendorfer
2007-07-12 1:15 ` Arjan van de Ven
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