From mboxrd@z Thu Jan 1 00:00:00 1970 From: "George Spelvin" Subject: Re: Request for benchmarking: x86 SHA1 code Date: 31 Jul 2009 10:05:32 -0400 Message-ID: <20090731140532.18327.qmail@science.horizon.com> References: <20090731132702.GY12813@osiris.978.org> Cc: linux@horizon.com To: brian@ristuccia.com, git@vger.kernel.org X-From: git-owner@vger.kernel.org Fri Jul 31 16:05:43 2009 Return-path: Envelope-to: gcvg-git-2@gmane.org Received: from vger.kernel.org ([209.132.176.167]) by lo.gmane.org with esmtp (Exim 4.50) id 1MWsjt-0001ke-Dj for gcvg-git-2@gmane.org; Fri, 31 Jul 2009 16:05:41 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751783AbZGaOFe (ORCPT ); Fri, 31 Jul 2009 10:05:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751540AbZGaOFd (ORCPT ); Fri, 31 Jul 2009 10:05:33 -0400 Received: from science.horizon.com ([71.41.210.146]:46213 "HELO science.horizon.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751390AbZGaOFd (ORCPT ); Fri, 31 Jul 2009 10:05:33 -0400 Received: (qmail 18328 invoked by uid 1000); 31 Jul 2009 10:05:32 -0400 In-Reply-To: <20090731132702.GY12813@osiris.978.org> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: > The revised code is faster on Intel Atom N270 by around 15% (results below > typical of several runs): > > $ ./586test ; ./x86test > Result: a9993e36 4706816a ba3e2571 7850c26c 9cd0d89d > Expected:a9993e36 4706816a ba3e2571 7850c26c 9cd0d89d > 500000000 bytes: 4.981760 s > Result: a9993e36 4706816a ba3e2571 7850c26c 9cd0d89d > Expected:a9993e36 4706816a ba3e2571 7850c26c 9cd0d89d > 500000000 bytes: 4.323324 s Cool, thanks! I hadn't optimized it at all for Atom's in-order pipe, so I'm pleasantly surprised.