Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757595AbYCHHMV (ORCPT ); Sat, 8 Mar 2008 02:12:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752661AbYCHHMO (ORCPT ); Sat, 8 Mar 2008 02:12:14 -0500 Received: from smtp-4.orange.nl ([193.252.22.249]:40854 "EHLO smtp-4.orange.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752637AbYCHHMN (ORCPT ); Sat, 8 Mar 2008 02:12:13 -0500 X-ME-UUID: 20080308071210896.DAF3E7000082@mwinf6304.orange.nl Message-ID: <47D23C4A.1030409@zonnet.nl> Date: Sat, 08 Mar 2008 08:12:10 +0100 From: belcampo User-Agent: Thunderbird 2.0.0.9 (X11/20071031) MIME-Version: 1.0 To: Andi Kleen Cc: Chris Snook , Andrew Buehler , Frederik Deweerdt , linux-kernel@vger.kernel.org Subject: Re: Hyperthreading performance oddities References: <47BE9781.3030304@zonnet.nl> <20080222100630.GE5906@slug> <47D14526.2070103@gmail.com> <47D192BF.5090501@redhat.com> <87zltae3y7.fsf@basil.nowhere.org> In-Reply-To: <87zltae3y7.fsf@basil.nowhere.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 475 Lines: 17 Hi all, Back to basics: Kernel 2.6.22.9 smp hyperthreading needs 338.143s with 2.6.17 kernel smp/hyperthreading needs 247.704s for exactly the same job on the same machine. For me it's not about HT vs. non-MT Henk Schoneveld -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/