From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 23 Jun 2006 10:52:08 -0700 (PDT) From: Christoph Lameter Subject: Re: [PATCH] mm: tracking shared dirty pages -v10 In-Reply-To: <1151083338.30819.28.camel@lappy> Message-ID: References: <20060619175243.24655.76005.sendpatchset@lappy> <20060619175253.24655.96323.sendpatchset@lappy> <1151019590.15744.144.camel@lappy> <1151083338.30819.28.camel@lappy> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Peter Zijlstra Cc: Hugh Dickins , Linus Torvalds , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrew Morton , David Howells , Christoph Lameter , Martin Bligh , Nick Piggin List-ID: On Fri, 23 Jun 2006, Peter Zijlstra wrote: > On Fri, 2006-06-23 at 10:00 -0700, Christoph Lameter wrote: > > > Also Peter has made the tracking configurable. So there is a way > > to switch it off if it is harmful for some situations. > > Oh? mapping_cap_account_dirty is not a way for a fs to switch this on and off? > > You mean anonymous pages? Anonymous pages are always dirty unless > > you consider swap and we currently do not take account of dirty anonymous > > pages. With swap we already have performance problems and maybe there are > > additional issues to fix in that area. But these are secondary. > > I intent to make swap over NFS work next. I am still a bit unclear on what you mean by "work." The only issue may be to consider the amount of swap pages about to be written out for write throttling. -- 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