From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Date: Sat, 28 Aug 2004 03:42:41 +0000 Subject: Re: page fault scalability patch final : i386 tested, x86_64 Message-Id: <20040827204241.25da512b.akpm@osdl.org> List-Id: References: <20040816143903.GY11200@holomorphy.com> <20040827233602.GB1024@wotan.suse.de> <20040827172337.638275c3.davem@davemloft.net> <20040827173641.5cfb79f6.akpm@osdl.org> <20040828010253.GA50329@muc.de> <20040827183940.33b38bc2.akpm@osdl.org> <16687.59671.869708.795999@cargo.ozlabs.ibm.com> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Christoph Lameter Cc: paulus@samba.org, ak@muc.de, davem@davemloft.net, ak@suse.de, wli@holomorphy.com, davem@redhat.com, raybry@sgi.com, benh@kernel.crashing.org, manfred@colorfullife.com, linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org, vrajesh@umich.edu, hugh@veritas.com Christoph Lameter wrote: > > So I think the move to atomic for rss acceptable? Short-term, yes. Longer term (within 12 months), no - 50-bit addresses on power5 will cause it to overflow. We may as well fix it up now, but let's set that aside during consideration of the rest of your patch. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264386AbUH1DpN (ORCPT ); Fri, 27 Aug 2004 23:45:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268149AbUH1DpN (ORCPT ); Fri, 27 Aug 2004 23:45:13 -0400 Received: from fw.osdl.org ([65.172.181.6]:6353 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S264386AbUH1DpI (ORCPT ); Fri, 27 Aug 2004 23:45:08 -0400 Date: Fri, 27 Aug 2004 20:42:41 -0700 From: Andrew Morton To: Christoph Lameter Cc: paulus@samba.org, ak@muc.de, davem@davemloft.net, ak@suse.de, wli@holomorphy.com, davem@redhat.com, raybry@sgi.com, benh@kernel.crashing.org, manfred@colorfullife.com, linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org, vrajesh@umich.edu, hugh@veritas.com Subject: Re: page fault scalability patch final : i386 tested, x86_64 support added Message-Id: <20040827204241.25da512b.akpm@osdl.org> In-Reply-To: References: <20040816143903.GY11200@holomorphy.com> <20040827233602.GB1024@wotan.suse.de> <20040827172337.638275c3.davem@davemloft.net> <20040827173641.5cfb79f6.akpm@osdl.org> <20040828010253.GA50329@muc.de> <20040827183940.33b38bc2.akpm@osdl.org> <16687.59671.869708.795999@cargo.ozlabs.ibm.com> X-Mailer: Sylpheed version 0.9.7 (GTK+ 1.2.10; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Christoph Lameter wrote: > > So I think the move to atomic for rss acceptable? Short-term, yes. Longer term (within 12 months), no - 50-bit addresses on power5 will cause it to overflow. We may as well fix it up now, but let's set that aside during consideration of the rest of your patch.