From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1SENCw-0008HT-OA for garchives@archives.gentoo.org; Sun, 01 Apr 2012 16:00:51 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 5A0C2E0BAB; Sun, 1 Apr 2012 16:00:33 +0000 (UTC) Received: from mail-wi0-f169.google.com (mail-wi0-f169.google.com [209.85.212.169]) by pigeon.gentoo.org (Postfix) with ESMTP id 8D23DE0B5B for ; Sun, 1 Apr 2012 15:58:43 +0000 (UTC) Received: by wibhm17 with SMTP id hm17so1864611wib.4 for ; Sun, 01 Apr 2012 08:58:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20120113; h=from:to:subject:date:message-id:user-agent:in-reply-to:references :mime-version:content-transfer-encoding:content-type; bh=8Xy2BfVdIiAsj7rWSLFTcIROupDaS/YRwli4z0p+LGg=; b=n/3qFYUNlwHHhMOIXW1lRh0Vz7d9p+m9VJhq7asRAq7YthLyTaAFUOwDT8uDI6xw6M enBbePgoGHQjyZRTabuqAsJ+ViVApKvkrqfQTW8hwz9V65syEZuA1z/yUhsOEW29LDWR YSmcv4jchAgq53BLsNshnvJJgWv9kekenx4mBqZm57Z4i7JzBI0r3E1euNMCTTO1fB40 JNR1P4O/0Xt/L07nt8Ets+st/fZpzIkUCpPcf5vyRuiS7PeHZ3nFfU9Xdkp1gRJJeqEC KUqXm3esIAJSq8yTR61JmY64pCs9Zh2FcLOHu/DQej66BLmn6xjBwyT0zEXMoWPBbfd4 QYQQ== Received: by 10.180.95.34 with SMTP id dh2mr16288989wib.15.1333295922787; Sun, 01 Apr 2012 08:58:42 -0700 (PDT) Received: from localhost.localnet (p4FC6064A.dip0.t-ipconnect.de. [79.198.6.74]) by mx.google.com with ESMTPS id u9sm26299696wix.0.2012.04.01.08.58.40 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 01 Apr 2012 08:58:41 -0700 (PDT) From: Volker Armin Hemmann To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Tips for saving power needed... Date: Sun, 01 Apr 2012 17:56:20 +0200 Message-ID: <2320074.M2zdZi9kkL@localhost> User-Agent: KMail/4.8.0 (Linux/3.0.25; KDE/4.8.1; x86_64; ; ) In-Reply-To: <4F786E9A.60404@gmail.com> References: <4F786E9A.60404@gmail.com> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Archives-Salt: 15d06d41-c8bd-43ca-999b-19b92627a46a X-Archives-Hash: 19e742446605d1b1991dd53b9f82b48e 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). > > Before going hard(ware) way, I would like to try first > all possible software solutions. What I tried up to now is > cpufreqd, CONFIG_NO_HZ=y, and spindown. In addition to that > I adjusted fan-speeds to a little lower values and turned > off some unneeded peripherials (in bios). > > Is there anything else I could do? Any tips would be greatly > welcomed... > > Jarry 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 ... -- #163933