From: Andi Kleen <andi@firstfloor.org>
To: Vedran Rodic <vrodic@gmail.com>
Cc: linux-acpi@vger.kernel.org
Subject: Re: Thinkpad X60s power usage on battery - Windows/Linux comparison
Date: Tue, 19 Aug 2008 03:42:32 +0200 [thread overview]
Message-ID: <87bpzp231z.fsf@basil.nowhere.org> (raw)
In-Reply-To: <8ccf2e9c0808181554o930f235maa79bdb365cd808d@mail.gmail.com> (Vedran Rodic's message of "Tue, 19 Aug 2008 00:54:58 +0200")
"Vedran Rodic" <vrodic@gmail.com> writes:
>
> Windows power monitoring tool from Lenovo reports power usage of 6.5 W under
> the same LCD brightness level and with wireless disabled.
It would be better if you compared using the same "neutral" method.
Most cheap power measurements tend to quite inaccurate and who
knows in which direction this Windows power monitoring tool is wrong.
It might be wrong in a different direction than what you used
under Linux.
A reasonable accurate method might be to just measure the time how
long the battery lasts in both cases using a similar workload
(e.g. keeping it completely idle)
-Andi
next prev parent reply other threads:[~2008-08-19 1:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-18 22:54 Thinkpad X60s power usage on battery - Windows/Linux comparison Vedran Rodic
2008-08-19 1:42 ` Andi Kleen [this message]
2008-08-21 0:05 ` Vedran Rodic
2008-08-21 15:07 ` Henrique de Moraes Holschuh
2008-08-19 3:12 ` Karthik Gopalakrishnan
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