Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 17 Sep 2002 16:03:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 17 Sep 2002 16:03:59 -0400 Received: from e34.co.us.ibm.com ([32.97.110.132]:58252 "EHLO e34.co.us.ibm.com") by vger.kernel.org with ESMTP id ; Tue, 17 Sep 2002 16:03:58 -0400 Date: Tue, 17 Sep 2002 13:05:35 -0700 From: "Martin J. Bligh" To: Duc Vianney , linux-kernel@vger.kernel.org, lse-tech@lists.sourceforge.net Subject: Re: [Lse-tech] Hyperthreading performance on 2.4.19 and 2.5.32 Message-ID: <49950000.1032293135@flay> In-Reply-To: <3D878A90.F5E4B8B0@us.ibm.com> References: <3D878A90.F5E4B8B0@us.ibm.com> X-Mailer: Mulberry/2.1.2 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 660 Lines: 16 > Benchmarks. For multithreaded benchmarks: chat, dbench and tbench. > Summary of results. The results on Linux kernel 2.4.19 show HT might > improve multithreaded application by as much as 30%. On kernel 2.5.32, > HT may provide speed-up as high as 60%. What happened to the -38% degradation you found? That seems to have fallen off the results list for some reason ... did you fix it, or is it still there? M. - 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/