From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261155AbUKVWmW (ORCPT ); Mon, 22 Nov 2004 17:42:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261157AbUKVWj5 (ORCPT ); Mon, 22 Nov 2004 17:39:57 -0500 Received: from omx1-ext.sgi.com ([192.48.179.11]:5092 "EHLO omx1.americas.sgi.com") by vger.kernel.org with ESMTP id S261156AbUKVWjY (ORCPT ); Mon, 22 Nov 2004 17:39:24 -0500 Date: Mon, 22 Nov 2004 14:39:19 -0800 (PST) From: Christoph Lameter X-X-Sender: clameter@schroedinger.engr.sgi.com To: Nick Piggin cc: Linus Torvalds , Hugh Dickins , akpm@osdl.org, Benjamin Herrenschmidt , linux-mm@kvack.org, linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: deferred rss update instead of sloppy rss In-Reply-To: <41A26910.7090401@yahoo.com.au> Message-ID: References: <41A26910.7090401@yahoo.com.au> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 23 Nov 2004, Nick Piggin wrote: > Deferred rss might be a practical solution, but I'd prefer this if it can > be made workable. Both results in an additional field in task_struct that is going to be incremented when the page_table_lock is not held. It would be possible to switch to looping in procfs later. The main question with this patchset is: How and when can we get this get into the kernel?