Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 17 Apr 2002 19:33:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 17 Apr 2002 19:32:59 -0400 Received: from e21.nc.us.ibm.com ([32.97.136.227]:21941 "EHLO e21.nc.us.ibm.com") by vger.kernel.org with ESMTP id ; Wed, 17 Apr 2002 19:32:58 -0400 Date: Wed, 17 Apr 2002 17:31:05 -0700 From: "Martin J. Bligh" To: "Jeff V. Merkey" cc: James Bourne , Ingo Molnar , linux-kernel@vger.kernel.org Subject: Re: Hyperthreading Message-ID: <1871700000.1019089865@flay> In-Reply-To: <20020417142617.B27778@vger.timpanogas.org> 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 >> Before you get too excited about that, how much performance boost do >> you actually get by turning on Hyperthreading? ;-) > > In my testing with SCI, it speeds up some operations and with 3Ware > it increases throuput about 10 MB/S. Not a lot but there is some > improvement (if you can get around the lockups during boot). What's that 10MB/s as a percentage of the overall performance? 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/