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To: gentoo-user@g.o
From: "Walter Dnes" <waltdnes@...>
Subject: Re: Tips for saving power needed...
Date: Mon, 2 Apr 2012 01:22:50 -0400
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@...>


Replies:
Re: Tips for saving power needed... particulary on laptops
-- Frank Steinmetzger
References:
Tips for saving power needed...
-- Jarry
Re: Tips for saving power needed...
-- Volker Armin Hemmann
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Updated May 04, 2012

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