From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.gentoo.org ([140.105.134.102] helo=robin.gentoo.org) by nuthatch.gentoo.org with esmtp (Exim 4.62) (envelope-from ) id 1HpSDP-0004Xv-HT for garchives@archives.gentoo.org; Sat, 19 May 2007 16:55:35 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.14.0/8.14.0) with SMTP id l4JGr6w2019462; Sat, 19 May 2007 16:53:06 GMT Received: from hades.rz.tu-clausthal.de (hades.rz.tu-clausthal.de [139.174.2.20]) by robin.gentoo.org (8.14.0/8.14.0) with ESMTP id l4JGr6tr019438 for ; Sat, 19 May 2007 16:53:06 GMT Received: from hades.rz.tu-clausthal.de (localhost [127.0.0.1]) by localhost (Postfix) with SMTP id 38E051FF619 for ; Sat, 19 May 2007 18:53:06 +0200 (CEST) Received: from tu-clausthal.de (poseidon [139.174.2.21]) by hades.rz.tu-clausthal.de (Postfix) with ESMTP id 29A1E1FF5C4 for ; Sat, 19 May 2007 18:53:06 +0200 (CEST) Received: from energy.heim10.tu-clausthal.de (account wevah [139.174.197.94] verified) by tu-clausthal.de (CommuniGate Pro SMTP 5.1.9) with ESMTPSA id 23034477 for gentoo-amd64@lists.gentoo.org; Sat, 19 May 2007 18:53:06 +0200 From: "Hemmann, Volker Armin" To: gentoo-amd64@lists.gentoo.org Subject: Re: [gentoo-amd64] Choice of processor timer frequency? Date: Sat, 19 May 2007 18:53:05 +0200 User-Agent: KMail/1.9.6 References: <200705181126.48654.prh@gotadsl.co.uk> In-Reply-To: <200705181126.48654.prh@gotadsl.co.uk> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-amd64@gentoo.org Reply-to: gentoo-amd64@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200705191853.05727.volker.armin.hemmann@tu-clausthal.de> X-Virus-Scanned: by PureMessage V4.7 at tu-clausthal.de X-Archives-Salt: 53a517c2-0e38-4b1d-b567-6dd70262cb18 X-Archives-Hash: 1af348df82b13447758448b238dc28e1 On Freitag, 18. Mai 2007, Peter Humphrey wrote: > It's just occurred to me to question this kernel configuration option, > which is under Processor Type and Features. > > We used to have to choose from 100, 250 and 1000 Hz, but recently 300 Hz > has been added, with the following Help text: > > ---- > CONFIG_HZ_300: > 300 Hz is a good compromise choice allowing server performance while also > showing good interactive responsiveness even on SMP and NUMA systems and > exactly dividing by both PAL and NTSC frame rates for video and multimedia > work. > ---- > > At first I followed the advice without thought, but on reflection it occurs > to me to wonder about the truth of this statement. I suspect it's only true > in North America, northern Japan and a few other places, where the public > supply frequency is 60 Hz. In the rest of the world, with its 50 Hz, I > think 250 would be a better choice. and 300 is not dividable by 50? -- gentoo-amd64@gentoo.org mailing list