Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932252AbXAWIdO (ORCPT ); Tue, 23 Jan 2007 03:33:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932180AbXAWIdN (ORCPT ); Tue, 23 Jan 2007 03:33:13 -0500 Received: from amsfep16-int.chello.nl ([62.179.120.11]:43809 "EHLO amsfep16-int.chello.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932252AbXAWIdN (ORCPT ); Tue, 23 Jan 2007 03:33:13 -0500 Subject: Re: Why active list and inactive list? From: Peter Zijlstra To: Christoph Lameter Cc: Rik van Riel , Balbir Singh , Andrea Arcangeli , Niki Hammler , linux-kernel@vger.kernel.org, Vaidyanathan Srinivasan In-Reply-To: References: <45B55286.5060909@nobaq.net> <20070123003939.GY13798@opteron.random> <45B56575.10807@in.ibm.com> <45B569A4.3010006@redhat.com> Content-Type: text/plain Date: Tue, 23 Jan 2007 09:29:52 +0100 Message-Id: <1169540992.6197.202.camel@twins> Mime-Version: 1.0 X-Mailer: Evolution 2.8.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1091 Lines: 30 On Mon, 2007-01-22 at 18:03 -0800, Christoph Lameter wrote: > What happened to all those advanced page replacement endeavors? They are here: http://programming.kicks-ass.net/kernel-patches/page-replace/2.6.19-pr1/ I should update to .20 soonish. > What is the most promising of those? I'm still torn between CLOCK-Pro and CART. CLOCK-Pro is still vulnerable to the cyclic scan use case, since at that time all pages will have equal distance. CART might be fixable (my CART-r approach) but I still have to study the full ramifications of that (does it hurt other workloads?). Both seems quite capable to distinguish between recency and frequency. Neither use this horrid swappiness knob to distinguish between mapped and unmapped pages. The main problem I'm having is test cases, notably the lack thereof. (and lack of time ofcourse ;-) - 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/