Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030323AbWHOOpb (ORCPT ); Tue, 15 Aug 2006 10:45:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030324AbWHOOpb (ORCPT ); Tue, 15 Aug 2006 10:45:31 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:13443 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S1030323AbWHOOpa (ORCPT ); Tue, 15 Aug 2006 10:45:30 -0400 Subject: Re: Shared page tables patch... some results From: Arjan van de Ven To: Andi Kleen Cc: hugh@veritas.com, akpm@osdl.org, dmccr@us.ibm.com, linux-kernel@vger.kernel.org In-Reply-To: References: <1155638047.3011.96.camel@laptopd505.fenrus.org> Content-Type: text/plain Organization: Intel International BV Date: Tue, 15 Aug 2006 16:45:05 +0200 Message-Id: <1155653105.3011.167.camel@laptopd505.fenrus.org> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1058 Lines: 31 On Tue, 2006-08-15 at 16:41 +0200, Andi Kleen wrote: > Arjan van de Ven writes: > > and the result is interesting: > > Just booting into runlevel 5 and logging into gnome (without starting > > any apps) gets a sharing of 1284 pte pages! This means that five > > megabytes (!!) of memory is saved, and countless pagefaults are avoided. > > > > When I start SLES10 GNOME after boot with one firefox window and > one gnome terminal I only have ~5.3MB in total page tables according > to /proc/meminfo > > You're saying you can share 5MB of those. Call me sceptical of your > numbers. PageTables: 9836 kB (this is after sharing, so before it was more) maybe your gnome is not as bloated as my gnome ;) -- if you want to mail me at work (you don't), use arjan (at) linux.intel.com - 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/