From: Pavel Machek <pavel@ucw.cz>
To: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: [QUERY] Power consumption on a 2013 MBP
Date: Mon, 6 Jan 2014 22:11:15 +0100 [thread overview]
Message-ID: <20140106211115.GA23421@amd.pavel.ucw.cz> (raw)
In-Reply-To: <CALkWK0n0q+a9EmMbJXsgo6eO1B+0Lq6tqsN3moLbXz+Y0GGu0g@mail.gmail.com>
On Tue 2013-12-31 15:24:00, Ramkumar Ramachandra wrote:
> 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?
USB usually does that. Try rmmoding hcd(s). If that does not help, try
removing other modules. Oh and try without that broadcom-wl driver.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2014-01-06 21:11 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-31 9:54 Ramkumar Ramachandra
2014-01-06 21:11 ` Pavel Machek [this message]
2014-01-06 21:17 ` Ramkumar Ramachandra
2014-01-06 21:36 ` Pavel Machek
2014-01-06 23:05 ` Ramkumar Ramachandra
2014-01-07 0:27 ` Pavel Machek
2014-01-07 10:33 ` Ramkumar Ramachandra
2014-01-07 12:24 ` Pavel Machek
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