From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753525AbbCEXy6 (ORCPT ); Thu, 5 Mar 2015 18:54:58 -0500 Received: from cantor2.suse.de ([195.135.220.15]:44645 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752335AbbCEXy4 (ORCPT ); Thu, 5 Mar 2015 18:54:56 -0500 From: Mel Gorman To: Dave Chinner Cc: Andrew Morton , Ingo Molnar , Linus Torvalds , Aneesh Kumar , Linux Kernel Mailing List , Linux-MM , xfs@oss.sgi.com, linuxppc-dev@lists.ozlabs.org, Mel Gorman Subject: [RFC PATCH 0/2] Automatic NUMA balancing and PROT_NONE handling followup Date: Thu, 5 Mar 2015 23:54:50 +0000 Message-Id: <1425599692-32445-1-git-send-email-mgorman@suse.de> X-Mailer: git-send-email 2.1.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Dave Chinner reported a problem due to excessive NUMA balancing activity and bisected it. These are two patches that address two major issues with that series. The first patch is almost certainly unrelated to what he saw due to fact his vmstats showed no huge page activity but the fix is important. The second patch restores performance of one benchmark to similar levels to 3.19-vanilla but it still has to be tested on his workload. While I have a test configuration for his workload, I don't have either the KVM setup or suitable storage to test against. It also needs to be reviewed and tested on ppc64. arch/powerpc/include/asm/pgtable-ppc64.h | 16 ++++++++++++++++ arch/x86/include/asm/pgtable.h | 14 ++++++++++++++ include/asm-generic/pgtable.h | 19 +++++++++++++++++++ mm/huge_memory.c | 23 ++++++++++++++++++----- mm/mprotect.c | 5 +++++ 5 files changed, 72 insertions(+), 5 deletions(-) -- 2.1.2