Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750751AbWHPIIW (ORCPT ); Wed, 16 Aug 2006 04:08:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750760AbWHPIIW (ORCPT ); Wed, 16 Aug 2006 04:08:22 -0400 Received: from rhlx01.fht-esslingen.de ([129.143.116.10]:31372 "EHLO rhlx01.fht-esslingen.de") by vger.kernel.org with ESMTP id S1750751AbWHPIIW (ORCPT ); Wed, 16 Aug 2006 04:08:22 -0400 Date: Wed, 16 Aug 2006 10:08:20 +0200 From: Andreas Mohr To: Dave McCracken Cc: Arjan van de Ven , Diego Calleja , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Hugh Dickins Subject: Re: [PATCH 2/2] Simple shared page tables Message-ID: <20060816080820.GA6330@rhlx01.fht-esslingen.de> References: <20060815225607.17433.32727.sendpatch@wildcat> <20060815225618.17433.84777.sendpatch@wildcat> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060815225618.17433.84777.sendpatch@wildcat> User-Agent: Mutt/1.4.2.1i X-Priority: none Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 678 Lines: 20 Hi, On Tue, Aug 15, 2006 at 05:56:18PM -0500, Dave McCracken wrote: > +config PTSHARE > + bool "Share page tables" > + default y > + help > + Turn on sharing of page tables between processes for large shared > + memory regions. A bit too terse IMHO. It could have mentioned (briefly!) that it is able to save up to several MB of memory, or any other benefits. Plus, are there drawbacks? (Management overhead, ...) Andreas Mohr - 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/