From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 8 Dec 2004 13:26:27 -0800 From: "David S. Miller" Subject: Re: Anticipatory prefaulting in the page fault handler V1 Message-Id: <20041208132627.1c73177e.davem@davemloft.net> In-Reply-To: References: <20041202101029.7fe8b303.cliffw@osdl.org> <200412080933.13396.jbarnes@engr.sgi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: jbarnes@engr.sgi.com, nickpiggin@yahoo.com.au, jgarzik@pobox.com, torvalds@osdl.org, 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 09:56:00 -0800 (PST) Christoph Lameter wrote: > A patch like this is important for applications that allocate and preset > large amounts of memory on startup. It will drastically reduce the startup > times. 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? -- 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