From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753408AbaJQHaL (ORCPT ); Fri, 17 Oct 2014 03:30:11 -0400 Received: from shelob.surriel.com ([74.92.59.67]:35985 "EHLO shelob.surriel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753335AbaJQHaG (ORCPT ); Fri, 17 Oct 2014 03:30:06 -0400 From: riel@redhat.com To: linux-kernel@vger.kernel.org Cc: chegu_vinod@hp.com, peterz@infradead.org, mingo@redhat.com, mgorman@suse.de Subject: [PATCH 0/6] sched,numa: weigh nearby nodes for task placement on complex NUMA topologies (v2) Date: Fri, 17 Oct 2014 03:29:48 -0400 Message-Id: <1413530994-9732-1-git-send-email-riel@redhat.com> X-Mailer: git-send-email 1.9.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch set integrates two algorithms I have previously tested, one for glueless mesh NUMA topologies, where NUMA nodes communicate with far-away nodes through intermediary nodes, and backplane topologies, where communication with far-away NUMA nodes happens through backplane controllers (which cannot run tasks). Due to the inavailability of 8 node systems, and the fact that I am flying out to Linuxcon Europe / Plumbers / KVM Forum on Friday, I have not tested these patches yet. However, with a conference (and many familiar faces) coming up, it seemed like a good idea to get the code out there, anyway. Vinod tested the v1 series + patch 6 on a backplane topology system, and I changed v2 on a glueless mesh topology system. The patches appear to behave. Placement of tasks on smaller, directly connected, NUMA systems should not be affected at all by this patch serie v2: remove the hops table, and use numa_distance instead, tested on a system with glueless mesh topology, not yet tested on a backplane style system (but the algorithm should be unchanged)