From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932343AbWDBOJY (ORCPT ); Sun, 2 Apr 2006 10:09:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932344AbWDBOJY (ORCPT ); Sun, 2 Apr 2006 10:09:24 -0400 Received: from smtp104.mail.mud.yahoo.com ([209.191.85.214]:12222 "HELO smtp104.mail.mud.yahoo.com") by vger.kernel.org with SMTP id S932343AbWDBOJX (ORCPT ); Sun, 2 Apr 2006 10:09:23 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=Received:Message-ID:Date:From:User-Agent:X-Accept-Language:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=TASoCLnXyYbZ0VmOwA0Aekdz8pEbZTRvU/wQXoXTVEaQiX1E75tJgmRFFRf6L6yldxL5XCjYu2ubWtLzi7Er1JoYAN4PNnc4ffApH1btAaABwkV/B1keIVsnOADS/q5k66d0kF1dAp+/85dDXYhmGTqiBfq4ajqfb8gCLNvSh+g= ; Message-ID: <442F9B55.9030809@yahoo.com.au> Date: Sun, 02 Apr 2006 19:37:25 +1000 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20051007 Debian/1.7.12-1 X-Accept-Language: en MIME-Version: 1.0 To: Con Kolivas CC: ck list , linux list , Andrew Morton Subject: Re: 2.6.16-ck3 References: <200604021401.13331.kernel@kolivas.org> <442F5721.2040906@yahoo.com.au> <200604021851.39763.kernel@kolivas.org> In-Reply-To: <200604021851.39763.kernel@kolivas.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Con Kolivas wrote: > On Sunday 02 April 2006 14:46, Nick Piggin wrote: > > Curious. I was under the impression lowmem reserve only did anything if you > manually set it, and the users reporting on swap prefetch behaviour are not > the sort of users likely to do so. I'm happy to fix whatever the lowmem It is enabled by default for over a year. > reserve bug is but I doubt this bug is making swap prefetch behave better for > ordinary users. Well, whatever the case is I'll have another look at lowmem > reserve of course. > It would potentially make swap prefetch very happy to swap pages into the dma zone and the normal zone on highmem systems when the system is otherwise full of pagecache. So it might easily change behaviour on those systems. -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com