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
Message-Id: 20120402052250.GB12677@waltdnes.org
In Reply to: Re: [gentoo-user] Tips for saving power needed... by Volker Armin Hemmann
1 On Sun, Apr 01, 2012 at 05:56:20PM +0200, Volker Armin Hemmann wrote
2 > Am Sonntag, 1. April 2012, 17:04:58 schrieb Jarry:
3 > > Hi,
4 > >
5 > > admin of a colo-center keeps complaining my server is going
6 > > a little over power-limit (which they have set as ~120W per
7 > > 24h/avg, while my server needs ~130-135W). So I need to find
8 > > a way to save at least those 15W, or I will be moved to
9 > > higher tarif (which means higher costs for server-housing).
10
11 > don't use cpufreqd? Just use the ondemand cpu governor. Only run
12 > services you need. If there is graphics hardware make sure the driver
13 > knows about power saving. An amd card on a virtual terminal needs
14 > as much power as an amd card in X doing heavy 3d lifting ...
15
16 The following may seem obvious, but here goes...
17
18 * remove unnecessary video cards, and drivers. Most colo machines
19 should do OK with just a text console running on the onboard GPU.
20 Dump all video driver stuff "/dev/agpgart (AGP Support)" and
21 "Direct Rendering Manager". This assumes you're not running X on
22 your colo machines. mc (Midnight Commander) is a great text-based
23 tool, along the lines of ye olde Norton Commander.
24
25 * disable sound cards/chips in BIOS and remove drivers and kernel
26 support.
27
28 * Run "rc-update show" and look for any services you don't need.
29
30 --
31 Walter Dnes <waltdnes@××××××××.org>

Replies

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