From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753159AbcAGR5k (ORCPT ); Thu, 7 Jan 2016 12:57:40 -0500 Received: from outbound-smtp08.blacknight.com ([46.22.139.13]:43979 "EHLO outbound-smtp08.blacknight.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751920AbcAGR5i (ORCPT ); Thu, 7 Jan 2016 12:57:38 -0500 From: Mel Gorman To: Linux-Stable Cc: Srikar Dronamraju , Peter Zijlstra , Ingo Molnar , LKML , Mel Gorman Subject: [PATCH 4.3-stable 0/5] Disable automatic numa balancing on UMA Date: Thu, 7 Jan 2016 17:57:31 +0000 Message-Id: <1452189456-8486-1-git-send-email-mgorman@techsingularity.net> X-Mailer: git-send-email 2.6.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Automatic NUMA balancing only makes sense on NUMA machines but was enabled in 4.3 on UMA by commit 2a1ed24 ("sched/numa: Prefer NUMA hotness over cache hotness") and is still enabled in 4.3.3 despite the fixes being in mainline. With this series applied, UMA has zero automatic NUMA-related page table updates as expected. kernel/sched/core.c | 18 ++++++------------ kernel/sched/fair.c | 8 ++++---- kernel/sched/features.h | 16 ---------------- kernel/sched/sched.h | 12 +----------- 4 files changed, 11 insertions(+), 43 deletions(-) -- 2.6.4