From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 6 Nov 2007 18:11:39 -0800 (PST) From: Christoph Lameter Subject: Re: [RFC PATCH 0/10] split anon and file LRUs In-Reply-To: <20071103184229.3f20e2f0@bree.surriel.com> Message-ID: References: <20071103184229.3f20e2f0@bree.surriel.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Rik van Riel Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: On Sat, 3 Nov 2007, Rik van Riel wrote: > The current version only has the infrastructure. Large changes to > the page replacement policy will follow later. Hmmmm.. I'd rather see where we are going. One other way of addressing many of these issues is to allow large page sizes on the LRU which will reduce the number of entities that have to be managed. Both approaches actually would work in tandem. > TODO: > - have any mlocked and ramfs pages live off of the LRU list, > so we do not need to scan these pages I think that is the most urgent issue at hand. At least for us. > - switch to SEQ replacement for the anon LRU lists, so the > worst case number of pages to scan is reduced greatly. No idea what that is? > - figure out if the file LRU lists need page replacement > changes to help with worst case scenarios We do not have an accepted standard load. So how would we figure that one out? -- 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