From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753909AbZIGPdw (ORCPT ); Mon, 7 Sep 2009 11:33:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753505AbZIGPdv (ORCPT ); Mon, 7 Sep 2009 11:33:51 -0400 Received: from casper.infradead.org ([85.118.1.10]:49752 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753720AbZIGPdv (ORCPT ); Mon, 7 Sep 2009 11:33:51 -0400 Date: Mon, 7 Sep 2009 08:37:10 -0700 From: Arjan van de Ven To: Xavier Bestel Cc: Markus Tornqvist , Ingo Molnar , Frans Pop , kernel@kolivas.org, linux-kernel@vger.kernel.org, a.p.zijlstra@chello.nl, efault@gmx.de Subject: Re: [quad core results] BFS vs. mainline scheduler benchmarks and measurements Message-ID: <20090907083710.3d78393c@infradead.org> In-Reply-To: <1252337069.31087.17.camel@skunk> References: <20090907121613.GA32097@elte.hu> <20090907131905.GP28624@nysv.org> <20090907074507.7f00a3ec@infradead.org> <1252337069.31087.17.camel@skunk> Organization: Intel X-Mailer: Claws Mail 3.7.2 (GTK+ 2.14.7; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 07 Sep 2009 17:24:29 +0200 Xavier Bestel wrote: > > On Mon, 2009-09-07 at 07:45 -0700, Arjan van de Ven wrote: > > On Mon, 7 Sep 2009 16:41:51 +0300 > > > >It shows similar curves and behavior to the 8-core results i > > > >posted > > > >- BFS is slower than mainline in virtually every measurement. > > > >The ratios are different for different parts of the graphs - but > > > >the trend is similar. > > > > > > Dude, not cool. > > > > > > 1. Quad HT is not the same as a 4-core desktop, you're doing it > > > with 8 cores > > > > 4 cores, 8 threads. Which is basically the standard desktop cpu > > going forward... (4 cores already is today, 8 threads is that any > > day now) > > Except on your typical smartphone, which will run linux and probably > vastly outnumber the number of "traditional" linux desktops. yeah the trend in cellphones is only quad core without HT, not quad core WITH ht ;-) -- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org