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 1N6vMj-0002hz-Te for garchives@archives.gentoo.org; Sun, 08 Nov 2009 00:10:46 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id C9623E0728; Sun, 8 Nov 2009 00:10:44 +0000 (UTC) Received: from mail-ew0-f206.google.com (mail-ew0-f206.google.com [209.85.219.206]) by pigeon.gentoo.org (Postfix) with ESMTP id 89CA9E0728 for ; Sun, 8 Nov 2009 00:10:44 +0000 (UTC) Received: by ewy2 with SMTP id 2so269386ewy.34 for ; Sat, 07 Nov 2009 16:10:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:received:received:from:to:subject:date :user-agent:references:in-reply-to:mime-version:content-type :content-transfer-encoding:message-id; bh=yk9AbNbwLGyqCshDXVrgivdIKvlDifSN26UH9uiCkF0=; b=Ilr0JMlYv0J36guExmn4Sd2uPSXn6GjTm02d8uIgGhwUtWNU2oaoNGiSV2Bs9zdEt+ BB9jhLErNB7xChuc1Rbo8uoI6Iir8KUViPNsOqKlzniC5SNh6jb4HzDu/csRgNucqo6F CHfb+72VhY8hHnAgv1CG1L3/o/m/qfgwPeu/g= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=from:to:subject:date:user-agent:references:in-reply-to:mime-version :content-type:content-transfer-encoding:message-id; b=Nt9YpaXVQ2N9I55+5mWd03XuePMt5MpiQHAEJSBWxKULEsTIFlZTZIkyVNjBBv1Du6 ty1KWO5g5v8E3fntxMzV5VX+DLKaTAXTJd3Vtd+fuTpIhixKc++sEr9GmgDSQZYsxN3o SuzZyRtdR+Uj0ZN1p0SjlymBF3hCNsMQu0hT8= Received: by 10.216.90.11 with SMTP id d11mr296045wef.187.1257639042128; Sat, 07 Nov 2009 16:10:42 -0800 (PST) Received: from energy.localnet (energy.heim10.tu-clausthal.de [139.174.197.94]) by mx.google.com with ESMTPS id g9sm4000771gvc.10.2009.11.07.16.10.41 (version=TLSv1/SSLv3 cipher=RC4-MD5); Sat, 07 Nov 2009 16:10:41 -0800 (PST) From: Volker Armin Hemmann To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Re: decrapify your kernel config WAS: ps shows pegasus process running - what is it? Date: Sun, 8 Nov 2009 01:10:37 +0100 User-Agent: KMail/1.12.3 (Linux/2.6.32-rc6-zen1r4; KDE/4.3.3; x86_64; ; ) References: <39CFC182-B039-4D26-9880-DC26485DF8F2@stellar.eclipse.co.uk> <200911071232.55583.volkerarmin@googlemail.com> In-Reply-To: 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-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200911080110.37891.volkerarmin@googlemail.com> X-Archives-Salt: 5015aeee-0461-4375-a3be-9dd31c02f3b3 X-Archives-Hash: 6d0d9299b9b0631555d98f15806e6dcc On Sonntag 08 November 2009, Stroller wrote: > On 7 Nov 2009, at 11:32, Volker Armin Hemmann wrote: > >> ... > >> I'd love to know what the name of the kernel module is so I can > >> unload > >> it: > >> > >> $ zcat /proc/config.gz | grep -i pegasus > >> CONFIG_USB_PEGASUS=y > > > > it is not a module, but compiled in. You have to rebuild your > > kernel. And > > probably decrapify your config a lot. > > Doh! I was fairly tired when I wrote that, sorry. > > I tend to just occasionally copy the kernel .config from that used on > the latest Knoppix disk, and `make oldconfig` between times. I figure > I don't know enough about the kernel that I'm likely to be able to > select a better set of options than that, and learning what to change > will surely not produce improvements worth the time expended. > > I would love a recommended "default" kernel .config - either for > Gentoo or Linux in general, but based towards on "small server" use - > but I'm not aware of anyone publishing one. I like the notion of a > small, minimal and "sleek" kernel, but with lots of modules available > to load as necessary, should I install a new PCI card. If anyone has > any low-overhead suggestions, I would love to hear them. > > Stroller. > using a livecds kernel is probably the worst decision out there. http://www.kroah.com/lkn/ as you can see, you don't have to download it. Or just do it step for step, reading help files. seccomp? Except Andrea Arcangeli nobody uses it. Can be deactivated. I2O? Almost nobody uses it. Especially not 'commodity' hardware, out it goes. Numa? Do you have a multi-socket system? No? Then you don't need it. ... you can remove a lot of cruft that way. Namespaces - you don't need it? Kick 'em out. Group scheduling? Sure, a great way to reduce performance... ...