From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f199.google.com (mail-pf0-f199.google.com [209.85.192.199]) by kanga.kvack.org (Postfix) with ESMTP id 57CB96B0022 for ; Thu, 22 Feb 2018 21:16:53 -0500 (EST) Received: by mail-pf0-f199.google.com with SMTP id e126so3444285pfh.4 for ; Thu, 22 Feb 2018 18:16:53 -0800 (PST) Received: from NAM02-BL2-obe.outbound.protection.outlook.com (mail-bl2nam02on0124.outbound.protection.outlook.com. [104.47.38.124]) by mx.google.com with ESMTPS id m14si988011pff.156.2018.02.22.18.16.51 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 22 Feb 2018 18:16:52 -0800 (PST) From: "Zi Yan" Subject: Re: [RFC 1/2] Protect larger order pages from breaking up Date: Thu, 22 Feb 2018 21:16:07 -0500 Message-ID: <1B85435E-A9FB-47E7-A2FE-FE21632778F0@cs.rutgers.edu> In-Reply-To: References: <20180216160110.641666320@linux.com> <20180216160121.519788537@linux.com> <20180219101935.cb3gnkbjimn5hbud@techsingularity.net> <68050f0f-14ca-d974-9cf4-19694a2244b9@schoebel-theuer.de> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=_MailMate_25FC8291-A103-4243-9FB9-4D6E70C4853F_="; micalg=pgp-sha512; protocol="application/pgp-signature" Sender: owner-linux-mm@kvack.org List-ID: To: Christopher Lameter Cc: Thomas Schoebel-Theuer , Mel Gorman , Matthew Wilcox , linux-mm@kvack.org, linux-rdma@vger.kernel.org, akpm@linux-foundation.org, andi@firstfloor.org, Rik van Riel , Michal Hocko , Guy Shattah , Anshuman Khandual , Michal Nazarewicz , Vlastimil Babka , David Nellans , Laura Abbott , Pavel Machek , Dave Hansen , Mike Kravetz This is an OpenPGP/MIME signed message (RFC 3156 and 4880). --=_MailMate_25FC8291-A103-4243-9FB9-4D6E70C4853F_= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Yes. I saw the attached patches. I am definitely going to apply them and = see how they work out. In his last patch, there are a bunch of magic numbers used to reserve fre= e page blocks at different orders. I think that is the most interesting part. If Thomas= can share how to determine these numbers with his theory based on workloads, hardware/c= hipset, that would be a great guideline for sysadmins to take advantage of the patches. =E2=80=94 Best Regards, Yan Zi On 22 Feb 2018, at 21:01, Christopher Lameter wrote: > On Thu, 22 Feb 2018, Zi Yan wrote: > >> I am very interested in the theory behind your patch. Do you mind shar= ing it? Is there >> any required math background before reading it? Is there any related p= apers/articles I could >> also read? > > His patches were attached to the email you responded to. Guess I should= > update the patchset with the suggested changes and repost. --=_MailMate_25FC8291-A103-4243-9FB9-4D6E70C4853F_= Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- Comment: GPGTools - https://gpgtools.org iQFKBAEBCgA0FiEEOXBxLIohamfZUwd5QYsvEZxOpswFAlqPeWcWHHppLnlhbkBj cy5ydXRnZXJzLmVkdQAKCRBBiy8RnE6mzLd4CACMKJTGTIMRbpnMwABt9NYEDXEu EaDO6Ugwp6H3Kb2xCCFHCW0+PTDKM+H9itRQuy3b4tqGmSSF0xFudf/lwC5ZItis SxtgDXzzeCxulHXQWffQHfvigxi0ZFyKPnv3ebFusohzMf2u/BXziMbxBLl8t9kT kZgLD2+steB5/kLj2MOXRG3CIttLzRVbqnLI80Goso43VIcIe2ZLpjDxXxuXFyxY FEOz+prDhT3gmrVURn8nQGvMJMqt27tnHSKetmfCYqxrEVcJglSGS8FNObL50w7d tkLnJCr3BryJ99Dvt4LM0UwICXGPCxRlhfxYKZU+j2272IRa+S85CNGzOn4h =0Pgj -----END PGP SIGNATURE----- --=_MailMate_25FC8291-A103-4243-9FB9-4D6E70C4853F_=-- -- 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