Gentoo Archives: gentoo-user

From: Walter Dnes <waltdnes@××××××××.org>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Tips for saving power needed...
Date: Mon, 02 Apr 2012 06:27:24
In Reply to: Re: [gentoo-user] Tips for saving power needed... by Volker Armin Hemmann
On Sun, Apr 01, 2012 at 05:56:20PM +0200, Volker Armin Hemmann wrote
> Am Sonntag, 1. April 2012, 17:04:58 schrieb Jarry: > > Hi, > > > > admin of a colo-center keeps complaining my server is going > > a little over power-limit (which they have set as ~120W per > > 24h/avg, while my server needs ~130-135W). So I need to find > > a way to save at least those 15W, or I will be moved to > > higher tarif (which means higher costs for server-housing).
> don't use cpufreqd? Just use the ondemand cpu governor. Only run > services you need. If there is graphics hardware make sure the driver > knows about power saving. An amd card on a virtual terminal needs > as much power as an amd card in X doing heavy 3d lifting ...
The following may seem obvious, but here goes... * remove unnecessary video cards, and drivers. Most colo machines should do OK with just a text console running on the onboard GPU. Dump all video driver stuff "/dev/agpgart (AGP Support)" and "Direct Rendering Manager". This assumes you're not running X on your colo machines. mc (Midnight Commander) is a great text-based tool, along the lines of ye olde Norton Commander. * disable sound cards/chips in BIOS and remove drivers and kernel support. * Run "rc-update show" and look for any services you don't need. -- Walter Dnes <waltdnes@××××××××.org>


Subject Author
Re: [gentoo-user] Tips for saving power needed... particulary on laptops Frank Steinmetzger <Warp_7@×××.de>