From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f172.google.com (mail-pd0-f172.google.com [209.85.192.172]) by kanga.kvack.org (Postfix) with ESMTP id 18CEC6B0031 for ; Fri, 18 Apr 2014 16:05:46 -0400 (EDT) Received: by mail-pd0-f172.google.com with SMTP id p10so1745154pdj.3 for ; Fri, 18 Apr 2014 13:05:45 -0700 (PDT) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org. [140.211.169.12]) by mx.google.com with ESMTP id ev1si11681198pbb.294.2014.04.18.13.05.44 for ; Fri, 18 Apr 2014 13:05:45 -0700 (PDT) Date: Fri, 18 Apr 2014 13:05:43 -0700 From: Andrew Morton 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> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: Robert Haas , Josh Berkus , Andres Freund , Christoph Lameter , Linux-MM , LKML , Michal Hocko 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, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org