From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 31 Mar 2003 13:57:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 31 Mar 2003 13:57:30 -0500 Received: from holomorphy.com ([66.224.33.161]:36292 "EHLO holomorphy") by vger.kernel.org with ESMTP id ; Mon, 31 Mar 2003 13:57:29 -0500 Date: Mon, 31 Mar 2003 11:08:03 -0800 From: William Lee Irwin III To: Christoph Hellwig , Andrea Arcangeli , linux-kernel@vger.kernel.org Subject: Re: 64GB NUMA-Q after pgcl Message-ID: <20030331190803.GS30140@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Christoph Hellwig , Andrea Arcangeli , linux-kernel@vger.kernel.org References: <20030328040038.GO1350@holomorphy.com> <20030330231945.GH2318@x30.local> <20030331042729.GQ30140@holomorphy.com> <20030331183506.GC11026@x30.random> <20030331194117.A27859@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030331194117.A27859@infradead.org> User-Agent: Mutt/1.3.28i Organization: The Domain of Holomorphy Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 31, 2003 at 08:35:06PM +0200, Andrea Arcangeli wrote: >> About you not caring anymore about the mem_map array size, that still >> matters on the embedded usage, infact rmap on the embedded usage is the >> biggest waste there, normally they don't even have swap so if something >> you should use the rmap provided for truncate, rather than wasting >> memory in the mem_map array. On Mon, Mar 31, 2003 at 07:41:17PM +0100, Christoph Hellwig wrote: > We have CONFIG_SWAP for that in 2.5.. I think the rmap allocations currently depend on CONFIG_MMU; IMHO it can be moved to CONFIG_SWAP if/when objrmap is merged since only anonymous memory will need pte_chains then, and it can't be evicted. -- wli