linux-kernel - [QUERY] Power consumption on a 2013 MBP

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Message-ID: <CALkWK0n0q+a9EmMbJXsgo6eO1B+0Lq6tqsN3moLbXz+Y0GGu0g@mail.gmail.com>
Date:	Tue, 31 Dec 2013 15:24:00 +0530
From:	Ramkumar Ramachandra <artagnon@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: [QUERY] Power consumption on a 2013 MBP

Hi,

On a 2013 Macbook Pro, Linux consumes 21W of power while OS X consumes
just 9W. I found this very disturbing; Linux more than halves the
battery life of the device. I checked to see that I wasn't running any
especially power-hungry applications or drivers (using powertop). I'm
using just one proprietary driver: the broadcom-wl wireless driver;
otherwise, I'm running the stock 3.12 kernel from Arch's repositories.

How do I figure out what is consuming power, and what can I do to help
minimize consumption?

Thanks.

Ram
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