Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754548AbaDRUFr (ORCPT ); Fri, 18 Apr 2014 16:05:47 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:42213 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752263AbaDRUFp (ORCPT ); Fri, 18 Apr 2014 16:05:45 -0400 Date: Fri, 18 Apr 2014 13:05:43 -0700 From: Andrew Morton To: Mel Gorman Cc: Robert Haas , Josh Berkus , Andres Freund , Christoph Lameter , Linux-MM , LKML , Michal Hocko Subject: Re: [PATCH 0/2] Disable zone_reclaim_mode by default v2 Message-Id: <20140418130543.8619064c0e5d26cd914c4c3c@linux-foundation.org> In-Reply-To: <1396945380-18592-1-git-send-email-mgorman@suse.de> References: <1396945380-18592-1-git-send-email-mgorman@suse.de> X-Mailer: Sylpheed 3.2.0beta5 (GTK+ 2.24.10; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 8 Apr 2014 09:22:58 +0100 Mel Gorman wrote: > Changelog since v1 > o topology comment updates > > When it was introduced, zone_reclaim_mode made sense as NUMA distances > punished and workloads were generally partitioned to fit into a NUMA > node. NUMA machines are now common but few of the workloads are NUMA-aware > and it's routine to see major performance due to zone_reclaim_mode being > enabled but relatively few can identify the problem. > > Those that require zone_reclaim_mode are likely to be able to detect when > it needs to be enabled and tune appropriately so lets have a sensible > default for the bulk of users. > This patchset conflicts with commit 70ef57e6c22c3323dce179b7d0d433c479266612 Author: Michal Hocko AuthorDate: Mon Apr 7 15:37:01 2014 -0700 Commit: Linus Torvalds CommitDate: Mon Apr 7 16:35:50 2014 -0700 mm: exclude memoryless nodes from zone_reclaim It was pretty simple to resolve, but please check that I didn't miss anything. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/