From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756456AbZETPjX (ORCPT ); Wed, 20 May 2009 11:39:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752897AbZETPjQ (ORCPT ); Wed, 20 May 2009 11:39:16 -0400 Received: from mga14.intel.com ([143.182.124.37]:12143 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751126AbZETPjP (ORCPT ); Wed, 20 May 2009 11:39:15 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.41,222,1241420400"; d="scan'208";a="145019397" Date: Wed, 20 May 2009 23:38:51 +0800 From: Wu Fengguang To: gnome-list@gnome.org Cc: Andi Kleen , KOSAKI Motohiro , Christoph Lameter , Andrew Morton , LKML , Elladan , Nick Piggin , Johannes Weiner , Peter Zijlstra , Rik van Riel , "tytso@mit.edu" , "linux-mm@kvack.org" , "minchan.kim@gmail.com" , "xorg@lists.freedesktop.org" Subject: Re: [PATCH 2/3] vmscan: make mapped executable pages the first class citizen Message-ID: <20090520153851.GA6572@localhost> References: <20090519032759.GA7608@localhost> <20090519133422.4ECC.A69D9226@jp.fujitsu.com> <20090519062503.GA9580@localhost> <87pre4nhqf.fsf@basil.nowhere.org> <20090520143258.GA5706@localhost> <20090520144731.GB4753@basil.nowhere.org> <20090520145607.GA6281@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090520145607.GA6281@localhost> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi list, On Wed, May 20, 2009 at 10:56:07PM +0800, Wu Fengguang wrote: > On Wed, May 20, 2009 at 10:47:31PM +0800, Andi Kleen wrote: > > > > One scenario that might be useful to test is what happens when some > > > > very large processes, all mapped and executable exceed memory and > > > > > > Good idea. Too bad I may have to install some bloated desktop in order > > > to test this out ;) I guess the pgmajfault+pswpin numbers can serve as > > > negative scores in that case? > > > > I would just generate a large C program with a script and compile > > and run that. The program can be very dumb (e.g. only run > > a gigantic loop), it just needs to be large. > > > > Just don't compile it with optimization, that can be quite slow. > > > > And use multiple functions, otherwise gcc might exceed your memory. > > > Hehe, an arbitrary C program may not be persuasive..but I do have some > bloated binaries at hand :-) > > -rwsr-sr-x 1 root wfg 36M 2009-04-22 17:21 Xorg > lrwxrwxrwx 1 wfg wfg 4 2009-04-22 17:21 X -> Xorg > -rwxr-xr-x 1 wfg wfg 39M 2009-04-22 17:21 Xvfb > -rwxr-xr-x 1 wfg wfg 35M 2009-04-22 17:21 Xnest I would like to create a lot of windows in gnome, and to switch between them. Any ideas on scripting/automating the "switch window" actions? Thanks, Fengguang