From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261374AbULHVnh (ORCPT ); Wed, 8 Dec 2004 16:43:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261373AbULHVnh (ORCPT ); Wed, 8 Dec 2004 16:43:37 -0500 Received: from fw.osdl.org ([65.172.181.6]:7365 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S261374AbULHVm6 (ORCPT ); Wed, 8 Dec 2004 16:42:58 -0500 Date: Wed, 8 Dec 2004 13:42:46 -0800 (PST) From: Linus Torvalds To: "David S. Miller" cc: Christoph Lameter , jbarnes@engr.sgi.com, nickpiggin@yahoo.com.au, jgarzik@pobox.com, hugh@veritas.com, benh@kernel.crashing.org, linux-mm@kvack.org, linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Anticipatory prefaulting in the page fault handler V1 In-Reply-To: <20041208132627.1c73177e.davem@davemloft.net> Message-ID: References: <20041202101029.7fe8b303.cliffw@osdl.org> <200412080933.13396.jbarnes@engr.sgi.com> <20041208132627.1c73177e.davem@davemloft.net> 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 Wed, 8 Dec 2004, David S. Miller wrote: > > I see. Yet I noticed that while the patch makes system time decrease, > for some reason the wall time is increasing with the patch applied. > Why is that, or am I misreading your tables? I assume that you're looking at the final "both patches applied" case. It has ten repetitions, while the other two tables only have three. That would explain the discrepancy. Linus