Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751042AbWAJOZV (ORCPT ); Tue, 10 Jan 2006 09:25:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932182AbWAJOZV (ORCPT ); Tue, 10 Jan 2006 09:25:21 -0500 Received: from ns.virtualhost.dk ([195.184.98.160]:57115 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S1751042AbWAJOZV (ORCPT ); Tue, 10 Jan 2006 09:25:21 -0500 Date: Tue, 10 Jan 2006 15:25:40 +0100 From: Jens Axboe To: Gerd Hoffmann Cc: Mikael Pettersson , linux-kernel@vger.kernel.org, Andrew Morton , Linus Torvalds Subject: Re: 2G memory split Message-ID: <20060110142540.GK3389@suse.de> References: <20060110125852.GA3389@suse.de> <17347.47882.735057.154898@alkaid.it.uu.se> <20060110135404.GF3389@suse.de> <43C3C023.9040308@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <43C3C023.9040308@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 883 Lines: 20 On Tue, Jan 10 2006, Gerd Hoffmann wrote: > changing PAGE_OFFSET. As the whole point of this split patchery is to > avoid highmem in the first place it maybe makes sense to have some > "optimize for 1/2/4/more GB main memory" config option which in turn > picks sane PAGE_OFFSET+HIGHMEM+PAE settings? Forgot to comment on that... Yes that is indeed an option, but it's a little complicated since it depends on the role of the machine. A file server may want a very small user land virtual memory size, whereas a database server may want the opposite. So I think it's still saner to expose a select range of settings. -- Jens Axboe - 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/