Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754649Ab3JYNGw (ORCPT ); Fri, 25 Oct 2013 09:06:52 -0400 Received: from charlotte.tuxdriver.com ([70.61.120.58]:56563 "EHLO smtp.tuxdriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753309Ab3JYNGv (ORCPT ); Fri, 25 Oct 2013 09:06:51 -0400 Date: Fri, 25 Oct 2013 09:06:36 -0400 From: Neil Horman To: "H. Peter Anvin" Cc: linux-kernel@vger.kernel.org, sebastien.dugue@bull.net, Thomas Gleixner , Ingo Molnar , x86@kernel.org Subject: Re: [PATCH] x86: Run checksumming in parallel accross multiple alu's Message-ID: <20131025130636.GC9281@hmsreliant.think-freely.org> References: <1381510298-20572-1-git-send-email-nhorman@tuxdriver.com> <5259CD44.2000200@zytor.com> <20131018164218.GB4019@hmsreliant.think-freely.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Spam-Score: -2.9 (--) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 706 Lines: 14 On Fri, Oct 18, 2013 at 10:09:54AM -0700, H. Peter Anvin wrote: > If implemented properly adcx/adox should give additional speedup... that is the whole reason for their existence. > Ok, fair enough. Unfotunately, I'm not going to be able to get my hands on a stepping of this CPU to test any code using these instructions for some time, so I'll back burner their use and revisit them later. I'm still working on the parallel alu/prefetch angle though. Neil -- 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/