From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Lankes Subject: RE: [RFC PATCH 0/4]: affinity-on-next-touch Date: Thu, 11 Jun 2009 20:45:29 +0200 Message-ID: <000001c9eac4$cb8b6690$62a233b0$@rwth-aachen.de> References: <000c01c9d212$4c244720$e46cd560$@rwth-aachen.de> <87zldjn597.fsf@basil.nowhere.org> Mime-Version: 1.0 Content-Transfer-Encoding: 7BIT Return-path: In-reply-to: <87zldjn597.fsf@basil.nowhere.org> Content-language: de Sender: linux-numa-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: 'Andi Kleen' Cc: linux-kernel@vger.kernel.org, Lee.Schermerhorn@hp.com, linux-numa@vger.kernel.org, Boris Bierbaum , 'Brice Goglin' > Your patches seem to have a lot of overlap with > Lee Schermerhorn's old migrate memory on cpu migration patches. > I don't know the status of those. I analyze Lee Schermerhorn's migrate memory on cpu migration patches (http://free.linux.hp.com/~lts/Patches/PageMigration/). I think that Lee Schermerhorn add similar functionalities to the kernel. He called the "affinity-on-next-touch" functionality "migrate_on_fault" and uses in his patches the normal NUMA memory policies. Therefore, his solution fits better to the Linux kernel. I tested his patches with our test applications and got nearly the same performance results. I found only patches for the kernel 2.6.25-rc2-mm1. Does someone develop these patches further? Stefan