From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751044AbXDZSQT (ORCPT ); Thu, 26 Apr 2007 14:16:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754901AbXDZSQT (ORCPT ); Thu, 26 Apr 2007 14:16:19 -0400 Received: from netops-testserver-4-out.sgi.com ([192.48.171.29]:53297 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751006AbXDZSQS (ORCPT ); Thu, 26 Apr 2007 14:16:18 -0400 Date: Thu, 26 Apr 2007 11:16:17 -0700 (PDT) From: Christoph Lameter X-X-Sender: clameter@schroedinger.engr.sgi.com To: William Lee Irwin III cc: Nick Piggin , "Eric W. Biederman" , linux-kernel@vger.kernel.org, Mel Gorman , David Chinner , Jens Axboe , Badari Pulavarty , Maxim Levitsky Subject: Re: [00/17] Large Blocksize Support V3 In-Reply-To: <20070426145310.GH19966@holomorphy.com> Message-ID: References: <20070424222105.883597089@sgi.com> <46303A98.9000605@yahoo.com.au> <46304C74.9040304@yahoo.com.au> <46305177.7060102@yahoo.com.au> <463057D9.9030804@yahoo.com.au> <20070426145310.GH19966@holomorphy.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 26 Apr 2007, William Lee Irwin III wrote: > On Thu, Apr 26, 2007 at 05:42:17PM +1000, Nick Piggin wrote: > > I don't think that it is solved, and I think the heuristics that are > > there would be put under more stress if they become widely used. And > > it isn't only about whether we can get the page or not, but also about > > the cost. Look up Linus's arguments about page colouring, which are > > similar and I also think are pretty valid. > > Perhaps broader exposure would help demonstrate their efficacy, or > otherwise discover what deficits need to be addressed. It would help if developers would once in a while look at how other operating systems handle this. They have supported such features for a long time.