From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755664AbYBDRvv (ORCPT ); Mon, 4 Feb 2008 12:51:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751168AbYBDRvn (ORCPT ); Mon, 4 Feb 2008 12:51:43 -0500 Received: from mga09.intel.com ([134.134.136.24]:26361 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752111AbYBDRvm (ORCPT ); Mon, 4 Feb 2008 12:51:42 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.25,303,1199692800"; d="scan'208";a="295670994" Date: Mon, 4 Feb 2008 09:55:26 -0800 From: mark gross To: Matthew Wilcox Cc: Linus Torvalds , Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: Pull request: DMA pool updates Message-ID: <20080204175526.GA21144@linux.intel.com> Reply-To: mgross@linux.intel.com References: <20080129001147.GD31101@parisc-linux.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080129001147.GD31101@parisc-linux.org> User-Agent: Mutt/1.5.15+20070412 (2007-04-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jan 28, 2008 at 05:11:47PM -0700, Matthew Wilcox wrote: > G'day Linus, mate > > Could you pull the dmapool branch of > git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc.git please? > > All the patches have been posted to linux-kernel before, and various > comments (and acks) have been taken into account. > > It's a fairly nice performance improvement, so would be good to get in. > It's survived a few hours of *mumble* high-stress database benchmark, > so I have high confidence in its stability. I haven't looked at this yet but, I've been doing some work with the IOMMU performance impacts on DMA operations. DMApooling could provide a way to mitigate some of the spankage gotten when using IOMMU's. --mgross > > -- > Intel are signing my paycheques ... these opinions are still mine > "Bill, look, we understand that you're interested in selling us this > operating system, but compare it to ours. We can't possibly take such > a retrograde step." > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@kvack.org. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: email@kvack.org