From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756534Ab2I1Cyj (ORCPT ); Thu, 27 Sep 2012 22:54:39 -0400 Received: from terminus.zytor.com ([198.137.202.10]:36109 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755482Ab2I1Cyh (ORCPT ); Thu, 27 Sep 2012 22:54:37 -0400 Message-ID: <50651163.5050101@zytor.com> Date: Thu, 27 Sep 2012 19:54:27 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120911 Thunderbird/15.0.1 MIME-Version: 1.0 To: Tim Chen CC: Herbert Xu , "David S. Miller" , Fengguang Wu , David Cote , Suresh Siddha , Chaohong Guo , Austin Zhang , linux-kernel , linux-crypto@vger.kernel.org, James Guilford , Wajdi Feghali , Min Li Subject: Re: [PATCH 0/3 v2] Optimize CRC32C calculation using PCLMULQDQ in crc32c-intel module References: <1348785854.17632.15.camel@schen9-DESK> In-Reply-To: <1348785854.17632.15.camel@schen9-DESK> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/27/2012 03:44 PM, Tim Chen wrote: > Version 2 > This version of the patch series fixes compilation errors for > 32 bit x86 targets. > > Version 1 > This patch series optimized CRC32C calculations with PCLMULQDQ > instruction for crc32c-intel module. It speeds up the original > implementation by 1.6x for 1K buffer and by 3x for buffer 4k or > more. The tcrypt module was enhanced for doing speed test > on crc32c calculations. > Herbert - you are handling this one, right? -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.