From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755308Ab1G0Vfx (ORCPT ); Wed, 27 Jul 2011 17:35:53 -0400 Received: from one.firstfloor.org ([213.235.205.2]:47435 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753875Ab1G0Vfv (ORCPT ); Wed, 27 Jul 2011 17:35:51 -0400 Date: Wed, 27 Jul 2011 23:35:48 +0200 From: Andi Kleen To: Christoph Hellwig Cc: Andi Kleen , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, dehrenberg@google.com Subject: Re: RFC: Micro-optimize direct IO submission path Message-ID: <20110727213548.GD8006@one.firstfloor.org> References: <1308770322-22565-1-git-send-email-andi@firstfloor.org> <20110727210606.GA12714@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110727210606.GA12714@infradead.org> User-Agent: Mutt/1.4.2.2i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 27, 2011 at 05:06:06PM -0400, Christoph Hellwig wrote: > Any chance you could resend these against current mainline? It would > be sad to miss these easy optimizations. I was waiting for the benchmarkers to rerun them. I had done an additional prefetch optimization that seemed to give 1% more on a big benchmark for one result, but there was another suspicious one. Hopefully soon. -Andi -- ak@linux.intel.com -- Speaking for myself only.