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 1HCXm3-0006qg-FR for garchives@archives.gentoo.org; Thu, 01 Feb 2007 08:58:31 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.8/8.13.8) with SMTP id l118vJFG019344; Thu, 1 Feb 2007 08:57:19 GMT Received: from mail79.messagelabs.com (mail79.messagelabs.com [195.245.230.147]) by robin.gentoo.org (8.13.8/8.13.8) with SMTP id l118pW9R010899 for ; Thu, 1 Feb 2007 08:51:32 GMT X-VirusChecked: Checked X-Env-Sender: David.Nelson2@astrazeneca.com X-Msg-Ref: server-11.tower-79.messagelabs.com!1170319891!2285018!1 X-StarScan-Version: 5.5.10.7.1; banners=-,-,- X-Originating-IP: [85.158.136.131] Received: (qmail 11412 invoked from network); 1 Feb 2007 08:51:31 -0000 Received: from unassigned.messagelabs.net (HELO zcsn24.ukhx.astrazeneca.net) (85.158.136.131) by server-11.tower-79.messagelabs.com with SMTP; 1 Feb 2007 08:51:31 -0000 Received: from ukblemefe01.emea.astrazeneca.net (ukblemefe01.emea.astrazeneca.net [172.19.98.7]) by zcsn24.ukhx.astrazeneca.net (8.13.6/8.13.6) with ESMTP id l118pUQw003109 for ; Thu, 1 Feb 2007 08:51:31 GMT Received: from ukmcrdembx01.rd.astrazeneca.net ([172.24.184.164]) by ukblemefe01.emea.astrazeneca.net with Microsoft SMTPSVC(6.0.3790.211); Thu, 1 Feb 2007 08:51:30 +0000 Content-class: urn:content-classes:message Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Subject: RE: [gentoo-user] Symlinking /usr/portage/distfiles Date: Thu, 1 Feb 2007 08:51:30 -0000 Message-ID: <3D60AF2712C16D42A38076E52FD6E3D23F0D70@ukmcrdembx01.rd.astrazeneca.net> In-Reply-To: <45C12AED.2040109@paradise.net.nz> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [gentoo-user] Symlinking /usr/portage/distfiles thread-index: AcdFkysBaOhs6TgZRHWODRtFJowiIgASrtvg From: "Nelson, David \(ED, PAR&D\)" To: X-OriginalArrivalTime: 01 Feb 2007 08:51:30.0938 (UTC) FILETIME=[2AF935A0:01C745DE] X-MIME-Autoconverted: from quoted-printable to 8bit by robin.gentoo.org id l118pW9R010899 Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by robin.gentoo.org id l118vJFT019344 X-Archives-Salt: 301bf346-64db-4d21-a84e-bcfe9171c8f9 X-Archives-Hash: b72bb04ce3b9a81fb9cbda8c01bf7e39 > -----Original Message----- > From: Mark Kirkwood [mailto:markir@paradise.net.nz] > Sent: 31 January 2007 23:49 > To: gentoo-user@lists.gentoo.org > Subject: Re: [gentoo-user] Symlinking /usr/portage/distfiles >=20 >=20 > Boyd Stephen Smith Jr. wrote: > > On Wednesday 31 January 2007 09:58, Alan McKinnon=20 > > wrote about 'Re: [gentoo-user]=20 > > Symlinking /usr/portage/distfiles': > >> On Wednesday 31 January 2007, Bo =D8rsted Andresen wrote: > >>> Furthermore Pentium 4 is a joke (it performs horribly). A 2 GHz > >>> (Dothan I presume) Pentium-M should be faster than a 2,8=20 > GHz Pentium > >>> 4. My timing is for an 1,6 GHz (Banias) Pentium-M btw. > >> This sounds odd, but I'm not a cpu expert so can't really=20 > comment. Care > >> to elaborate on why the P4 performs so horribly? > >=20 > > The instruction pipeline is very long, the CPU <-> RAM=20 > bandwith is quite=20 > > small, and the pipeline has to be emptied any time the=20 > branch predictor is=20 > > wrong. While the pipeline fills, the CPU works but no results are=20 > > visible. > >=20 > > Hz has never been a complete trump of other issues affecting CPU=20 > > performance, but is always a factor to consider. (Among=20 > CPUs that are=20 > > otherwise identical, higher Hz wins.) > >=20 >=20 > Also Pentium-M has a lower latency L2 cache than P-4. With respect to=20 > pipeline lengths I was curious to see what they actually=20 > were: P-4 has=20 > 20 stages, P-M has.. err... < 20 stages (Intel won't say exactly!). >=20 > I found this an interesting read for those of you interested in this: >=20 > http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=3D2342&p=3D1 >=20 > Cheers >=20 > Mark At the risk of pulling this topic a little more off-topic - the P-M vs P-= 4 is an interesting case of a Pentium 3 chipset with a die shrink outperf= orming a P-4. The Intel Core (2) Solo/Duo CPUs are based on the Pentium M as well. Netb= urst is pretty much dead afaik. -- djn Disclaimer: I represent no-one else in my emails to this list. Use any ad= vice given at your own risk. --=20 gentoo-user@gentoo.org mailing list