From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 8 Dec 2004 13:42:46 -0800 (PST) From: Linus Torvalds 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: owner-linux-mm@kvack.org Return-Path: 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 List-ID: 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: aart@kvack.org