From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-f174.google.com (mail-ig0-f174.google.com [209.85.213.174]) by kanga.kvack.org (Postfix) with ESMTP id 2F840829A3 for ; Thu, 12 Mar 2015 12:20:49 -0400 (EDT) Received: by igbhn18 with SMTP id hn18so17776143igb.2 for ; Thu, 12 Mar 2015 09:20:49 -0700 (PDT) Received: from mail-ie0-x22e.google.com (mail-ie0-x22e.google.com. [2607:f8b0:4001:c03::22e]) by mx.google.com with ESMTPS id bg7si7412421icc.72.2015.03.12.09.20.48 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 12 Mar 2015 09:20:48 -0700 (PDT) Received: by iecsl2 with SMTP id sl2so47396559iec.1 for ; Thu, 12 Mar 2015 09:20:48 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <20150312131045.GE3406@suse.de> References: <1425741651-29152-1-git-send-email-mgorman@suse.de> <1425741651-29152-5-git-send-email-mgorman@suse.de> <20150307163657.GA9702@gmail.com> <20150308100223.GC15487@gmail.com> <20150309112936.GD26657@destitution> <20150309191943.GF26657@destitution> <20150312131045.GE3406@suse.de> Date: Thu, 12 Mar 2015 09:20:36 -0700 Message-ID: Subject: Re: [PATCH 4/4] mm: numa: Slow PTE scan rate if migration failures occur From: Linus Torvalds Content-Type: text/plain; charset=UTF-8 Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: Dave Chinner , Ingo Molnar , Andrew Morton , Aneesh Kumar , Linux Kernel Mailing List , Linux-MM , xfs@oss.sgi.com, ppc-dev 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. So I committed it and added a comment, and wrote a commit log about it. I suspect any further work is post-4.0-release, unless somebody comes up with something small and simple and obviously better. Linus -- 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