From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263734AbTL3Anz (ORCPT ); Mon, 29 Dec 2003 19:43:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264141AbTL3Anz (ORCPT ); Mon, 29 Dec 2003 19:43:55 -0500 Received: from tmr-02.dsl.thebiz.net ([216.238.38.204]:47623 "EHLO gatekeeper.tmr.com") by vger.kernel.org with ESMTP id S263734AbTL3Anx (ORCPT ); Mon, 29 Dec 2003 19:43:53 -0500 To: linux-kernel@vger.kernel.org Path: gatekeeper.tmr.com!davidsen From: davidsen@tmr.com (bill davidsen) Newsgroups: mail.linux-kernel Subject: Re: [PATCH] 2.6.0 batch scheduling, HT aware Date: 30 Dec 2003 00:32:03 GMT Organization: TMR Associates, Schenectady NY Message-ID: References: <200312231138.21734.kernel@kolivas.org> <20031226225652.GE197@elf.ucw.cz> <3FED4838.6050908@kolumbus.fi> X-Trace: gatekeeper.tmr.com 1072744323 16027 192.168.12.62 (30 Dec 2003 00:32:03 GMT) X-Complaints-To: abuse@tmr.com Originator: davidsen@gatekeeper.tmr.com Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org In article <3FED4838.6050908@kolumbus.fi>, =?ISO-8859-1?Q?Mika_Penttil=E4?= wrote: | heh...and the situation gets even worse when you add cpus, with 16way | you get only 1/16 of the speed ;) No, not when you add CPUs, when you add siblings. There's a big difference, since sibs compete for cache on the chip, and some execution units (FPU?). -- bill davidsen CTO, TMR Associates, Inc Doing interesting things with little computers since 1979.