From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f197.google.com (mail-wr0-f197.google.com [209.85.128.197]) by kanga.kvack.org (Postfix) with ESMTP id 135B16B0038 for ; Mon, 3 Apr 2017 12:57:11 -0400 (EDT) Received: by mail-wr0-f197.google.com with SMTP id i18so25014619wrb.21 for ; Mon, 03 Apr 2017 09:57:11 -0700 (PDT) Received: from mx2.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id 189si11789499wmy.102.2017.04.03.09.57.09 for (version=TLS1 cipher=AES128-SHA bits=128/128); Mon, 03 Apr 2017 09:57:09 -0700 (PDT) Date: Mon, 3 Apr 2017 18:57:06 +0200 From: Michal Hocko Subject: Re: [LSF/MM TOPIC][LSF/MM,ATTEND] shared TLB, hugetlb reservations Message-ID: <20170403165706.GR24661@dhcp22.suse.cz> References: <20170403115137.GB24668@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Mike Kravetz Cc: lsf-pc@lists.linux-foundation.org, linux-mm@kvack.org, linux-kernel On Mon 03-04-17 09:24:52, Mike Kravetz wrote: > On 04/03/2017 04:51 AM, Michal Hocko wrote: > > On Wed 08-03-17 17:30:55, Mike Kravetz wrote: > >> On 01/10/2017 03:02 PM, Mike Kravetz wrote: > >>> Another more concrete topic is hugetlb reservations. Michal Hocko > >>> proposed the topic "mm patches review bandwidth", and brought up the > >>> related subject of areas in need of attention from an architectural > >>> POV. I suggested that hugetlb reservations was one such area. I'm > >>> guessing it was introduced to solve a rather concrete problem. However, > >>> over time additional hugetlb functionality was added and the > >>> capabilities of the reservation code was stretched to accommodate. > >>> It would be good to step back and take a look at the design of this > >>> code to determine if a rewrite/redesign is necessary. Michal suggested > >>> documenting the current design/code as a first step. If people think > >>> this is worth discussion at the summit, I could put together such a > >>> design before the gathering. > >> > >> I attempted to put together a design/overview of how hugetlb reservations > >> currently work. Hopefully, this will be useful. > > > > I am still too busy to read through this carefuly and provide a useful > > feedback but I believe this should go int Documentation/vm/hugetlb$foo > > file. Care to send it as a patch please? > > Sure > > There is some incomplete information in the document, so I will make > some revisions and then send out as patch later this week. Thanks a lot. This is highly appreciated! -- Michal Hocko SUSE Labs -- 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