From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752184AbbCLStg (ORCPT ); Thu, 12 Mar 2015 14:49:36 -0400 Received: from cantor2.suse.de ([195.135.220.15]:33086 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750773AbbCLSte (ORCPT ); Thu, 12 Mar 2015 14:49:34 -0400 Date: Thu, 12 Mar 2015 18:49:26 +0000 From: Mel Gorman To: Linus Torvalds Cc: Dave Chinner , Ingo Molnar , Andrew Morton , Aneesh Kumar , Linux Kernel Mailing List , Linux-MM , xfs@oss.sgi.com, ppc-dev Subject: Re: [PATCH 4/4] mm: numa: Slow PTE scan rate if migration failures occur Message-ID: <20150312184925.GH3406@suse.de> References: <20150307163657.GA9702@gmail.com> <20150308100223.GC15487@gmail.com> <20150309112936.GD26657@destitution> <20150309191943.GF26657@destitution> <20150312131045.GE3406@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Mar 12, 2015 at 09:20:36AM -0700, Linus Torvalds wrote: > On Thu, Mar 12, 2015 at 6:10 AM, Mel Gorman wrote: > > > > I believe you're correct and it matches what was observed. I'm still > > travelling and wireless is dirt but managed to queue a test using pmd_dirty > > Ok, thanks. > > I'm not entirely happy with that change, and I suspect the whole > heuristic should be looked at much more (maybe it should also look at > whether it's executable, for example), but it's a step in the right > direction. > I can follow up when I'm back in work properly. As you have already pulled this in directly, can you also consider pulling in "mm: thp: return the correct value for change_huge_pmd" please? The other two patches were very minor can be resent through the normal paths later.