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 1O4LCd-00027C-Hw for garchives@archives.gentoo.org; Tue, 20 Apr 2010 21:41:55 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id BE01CE0976; Tue, 20 Apr 2010 21:41:20 +0000 (UTC) Received: from fg-out-1718.google.com (fg-out-1718.google.com [72.14.220.152]) by pigeon.gentoo.org (Postfix) with ESMTP id 02214E0976 for ; Tue, 20 Apr 2010 21:41:19 +0000 (UTC) Received: by fg-out-1718.google.com with SMTP id 16so2466312fgg.10 for ; Tue, 20 Apr 2010 14:41:19 -0700 (PDT) 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=J92VMzkr20P8Kd5GNUWI7Q4tMHkiXncG4o0/VwvetKo=; b=JKl3/o0DAtkU5Gt9D8NCXGCyxYwgdVmKQ8ohlsYTDpIKPNIR17lug9cXxTj/UcYUAB KsN/4qNMG5v2mHqPOZrXNK6x89xvbHw4xg3wkXOGgF3n/bG8sq5Etz1xRtGSe/3djTpf zWpnxI1NwTNeVjFs9HtuelCA6/q8/ZQQII2CA= 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=CksK0F6yvikFX2Mgqfa5IHMlXzsuQsSN0kuEW5YcLsSxy8O0sztJXIT+Q0xVqqZAKx tQLnLwyTQEXMrCGIlJYKl/QxlpJd6t5cUSItbcNC3LTjOLcZCtAX/ndXyD4ie/EiU3QJ nr8q+aKHNao6cudDdXuEirljbr1f5lDQM/UYI= Received: by 10.223.62.202 with SMTP id y10mr998123fah.100.1271799477263; Tue, 20 Apr 2010 14:37:57 -0700 (PDT) Received: from energy.localnet (p5DCC0EF0.dip0.t-ipconnect.de [93.204.14.240]) by mx.google.com with ESMTPS id 22sm3195251fkr.29.2010.04.20.14.37.56 (version=TLSv1/SSLv3 cipher=RC4-MD5); Tue, 20 Apr 2010 14:37:56 -0700 (PDT) From: Volker Armin Hemmann To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Re: sys-kernel/ck-sources - why should I use them? Date: Tue, 20 Apr 2010 23:37:54 +0200 User-Agent: KMail/1.13.2 (Linux/2.6.33r4; KDE/4.4.2; x86_64; ; ) References: 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: <201004202337.55038.volkerarmin@googlemail.com> X-Archives-Salt: e0b79cc7-badb-4253-aa38-55410c125f63 X-Archives-Hash: 52ecee00190ae58eb0c459192235a997 On Dienstag 20 April 2010, Nikos Chantziaras wrote: > On 04/20/2010 05:41 PM, Helmut Jarausch wrote: > > On 20 Apr, Volker Armin Hemmann wrote: > >> On Dienstag 20 April 2010, Helmut Jarausch wrote: > >>> Hi, > >>> > >>> has anybody experience with these new sys-kernel/ck-sources? > >>> I could only see they have additional patches (in addition to those > >>> of gentoo-sources). > >>> But I didn't find which patches and why these have only been applied to > >>> ck-sources? > >>> > >>> Thanks for your opinion, > >>> Helmut. > >> > >> if you have more than 2 cores, you shouldn't use them ;) > > > > Why, it's said to scale well up to 16 cores (at least)? > > It's practically *made* for 2 and 4 cores. Single core enhancements > were added later. > > Volker's recommendations is based on his own tests with the patches. > I'm on a dual core Intel E6600 and the patches help a big deal to keep > the GUI responsive and fluid. > > Also note that there's much hate and fanboy-ism around this issue. > Expect people telling you how this is crap, or how the default Linux > scheduler is crap, etc, without them really having a clue what they're > talking about. (I am *not* referring to Volker here, mind you.) to be honest - whenever I try ck patches I see zero improvements - so I stay with my usual kernel-policy: the less patches the better and scrap them.