From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CF838ECDFB8 for ; Mon, 23 Jul 2018 11:09:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8C54720846 for ; Mon, 23 Jul 2018 11:09:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8C54720846 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388060AbeGWMKM (ORCPT ); Mon, 23 Jul 2018 08:10:12 -0400 Received: from mx2.suse.de ([195.135.220.15]:55078 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2387823AbeGWMKM (ORCPT ); Mon, 23 Jul 2018 08:10:12 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id CDAC2AD9E; Mon, 23 Jul 2018 11:09:29 +0000 (UTC) Date: Mon, 23 Jul 2018 13:09:28 +0200 From: Michal Hocko To: Dave Hansen Cc: Dan Williams , pasha.tatashin@oracle.com, dalias@libc.org, Jan Kara , Benjamin Herrenschmidt , Heiko Carstens , linux-mm , Paul Mackerras , "H. Peter Anvin" , Yoshinori Sato , "linux-nvdimm@lists.01.org" , the arch/x86 maintainers , Matthew Wilcox , daniel.m.jordan@oracle.com, Ingo Molnar , fenghua.yu@intel.com, Jerome Glisse , Thomas Gleixner , "Luck, Tony" , Linux Kernel Mailing List , Michael Ellerman , Martin Schwidefsky , Andrew Morton , Christoph Hellwig Subject: Re: [PATCH v2 00/14] mm: Asynchronous + multithreaded memmap init for ZONE_DEVICE Message-ID: <20180723110928.GC31229@dhcp22.suse.cz> References: <153176041838.12695.3365448145295112857.stgit@dwillia2-desk3.amr.corp.intel.com> <20180717155006.GL7193@dhcp22.suse.cz> <20180718120529.GY7193@dhcp22.suse.cz> <3f43729d-fd4e-a488-e04d-026ef5a28dd9@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3f43729d-fd4e-a488-e04d-026ef5a28dd9@intel.com> User-Agent: Mutt/1.10.0 (2018-05-17) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu 19-07-18 11:41:10, Dave Hansen wrote: > On 07/18/2018 05:05 AM, Michal Hocko wrote: > > On Tue 17-07-18 10:32:32, Dan Williams wrote: > >> On Tue, Jul 17, 2018 at 8:50 AM Michal Hocko wrote: > > [...] > >>> Is there any reason that this work has to target the next merge window? > >>> The changelog is not really specific about that. > >> > >> Same reason as any other change in this space, hardware availability > >> continues to increase. These patches are a direct response to end user > >> reports of unacceptable init latency with current kernels. > > > > Do you have any reference please? > > Are you looking for the actual end-user reports? This was more of a > case of the customer plugging in some persistent memory DIMMs, noticing > the boot delta and calling the folks who sold them the DIMMs (Intel). But this doesn't sound like something to rush a solution for in the upcoming merge windown, does it? -- Michal Hocko SUSE Labs