Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752613AbcD2I7r (ORCPT ); Fri, 29 Apr 2016 04:59:47 -0400 Received: from mga02.intel.com ([134.134.136.20]:13849 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750847AbcD2I7m (ORCPT ); Fri, 29 Apr 2016 04:59:42 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,551,1455004800"; d="scan'208";a="965253199" Date: Fri, 29 Apr 2016 16:59:37 +0800 From: Aaron Lu To: Michal Hocko Cc: "Huang, Ying" , kernel test robot , Stephen Rothwell , Tetsuo Handa , Hillf Danton , LKML , Johannes Weiner , Mel Gorman , David Rientjes , Andrew Morton , lkp@01.org, KAMEZAWA Hiroyuki , linux-mm@kvack.org Subject: Re: [LKP] [lkp] [mm, oom] faad2185f4: vm-scalability.throughput -11.8% regression Message-ID: <20160429085937.GA20922@aaronlu.sh.intel.com> References: <20160427031556.GD29014@yexl-desktop> <20160427073617.GA2179@dhcp22.suse.cz> <87fuu7iht0.fsf@yhuang-dev.intel.com> <20160427083733.GE2179@dhcp22.suse.cz> <87bn4vigpc.fsf@yhuang-dev.intel.com> <20160427091718.GG2179@dhcp22.suse.cz> <20160428051659.GA10843@aaronlu.sh.intel.com> <20160428085702.GB31489@dhcp22.suse.cz> <20160428112135.GD31489@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160428112135.GD31489@dhcp22.suse.cz> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 697 Lines: 16 On Thu, Apr 28, 2016 at 01:21:35PM +0200, Michal Hocko wrote: > All of them are order-2 and this was a known problem for "mm, oom: > rework oom detection" commit and later should make it much more > resistant to failures for higher (!costly) orders. So I would definitely > encourage you to retest with the current _complete_ mmotm tree. OK, will run the test on this branch: https://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git since-4.5 with head commit: commit 81cc2e6f1e8bd81ebc7564a3cd3797844ee1712e Author: Michal Hocko Date: Thu Apr 28 12:03:24 2016 +0200 drm/amdgpu: make amdgpu_mn_get wait for mmap_sem killable Please let me know if this isn't right.