From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758181Ab2DJRhV (ORCPT ); Tue, 10 Apr 2012 13:37:21 -0400 Received: from terminus.zytor.com ([198.137.202.10]:49249 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757641Ab2DJRhR (ORCPT ); Tue, 10 Apr 2012 13:37:17 -0400 Message-ID: <4F846FBC.9060503@zytor.com> Date: Tue, 10 Apr 2012 10:37:00 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120209 Thunderbird/10.0.1 MIME-Version: 1.0 To: Jim Kukunas CC: x86@kernel.org, neilb@suse.de, linux-kernel@vger.kernel.org, mingo@redhat.com, tglx@linutronix.de, linux-raid@vger.kernel.org Subject: Re: arch/86: AVX RAID5 xor checksumming References: <1334078551-6859-1-git-send-email-james.t.kukunas@linux.intel.com> In-Reply-To: <1334078551-6859-1-git-send-email-james.t.kukunas@linux.intel.com> X-Enigmail-Version: 1.4 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/10/2012 10:22 AM, Jim Kukunas wrote: > Hi Folks, > > The following patch adds an AVX implementation of the RAID5 xor checksumming > functions. > > Based on xor_speed, the AVX implementation appears to be ~32% faster than the > SSE implementation on my i7 2600: > > generic_sse: 15088.000 MB/sec > avx: 19936.000 MB/sec > > Thanks. > I think this (and the SSSE3 patches for RAID-6) should go in via the RAID tree. Neil, do you agree? However, Acked-by: H. Peter Anvin -hpa