Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 26 Feb 2003 00:16:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 26 Feb 2003 00:16:28 -0500 Received: from 200-195-242-247.cwb.visp.ifx.net.br ([200.195.242.247]:47585 "EHLO 200-195-242-247.cwb.visp.ifx.net.br") by vger.kernel.org with ESMTP id ; Wed, 26 Feb 2003 00:16:27 -0500 Date: Wed, 26 Feb 2003 02:24:18 -0300 (BRT) From: Rik van Riel To: William Lee Irwin III cc: Andrea Arcangeli , "Martin J. Bligh" , Andrew Morton , Hanna Linder , "" , "" Subject: Re: Minutes from Feb 21 LSE Call In-Reply-To: <20030225212635.GE10411@holomorphy.com> Message-ID: References: <20030222192424.6ba7e859.akpm@digeo.com> <20030225171727.GN29467@dualathlon.random> <20030225174359.GA10411@holomorphy.com> <20030225175928.GP29467@dualathlon.random> <20030225185008.GF10396@holomorphy.com> <20030225191817.GT29467@dualathlon.random> <372680000.1046201260@flay> <20030225203001.GV29467@dualathlon.random> <417110000.1046206424@flay> <20030225211718.GY29467@dualathlon.random> <20030225212635.GE10411@holomorphy.com> X-spambait: aardvark@kernelnewbies.org X-spammeplease: aardvark@nl.linux.org 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 Content-Length: 1037 Lines: 29 On Tue, 25 Feb 2003, William Lee Irwin III wrote: > My impression thus far is that the anonymous case has not been pressing > with respect to space consumption or cpu time once the file-backed code > is in place, though if it resurfaces as a serious concern the anonymous > rework can be pursued (along with other things). ... but making the anonymous pages use an object based scheme probably will make things too expensive. IIRC the object based reverse map patches by bcrl and davem both failed on the complexities needed to deal with anonymous pages. My instinct is that a hybrid system will work well in most cases and the worst case with mapped files won't be too bad. cheers, Rik -- Engineers don't grow up, they grow sideways. http://www.surriel.com/ http://kernelnewbies.org/ - 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/