Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp7546323imu; Thu, 27 Dec 2018 23:56:50 -0800 (PST) X-Google-Smtp-Source: AFSGD/UpbIeW1kvjtCqCrxMvSbzViHdWmtj5opHiVBDQg34OsIqfQLpw1yA0E00xbL/zewwPCpXH X-Received: by 2002:a62:d448:: with SMTP id u8mr27089216pfl.105.1545983810177; Thu, 27 Dec 2018 23:56:50 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1545983810; cv=none; d=google.com; s=arc-20160816; b=R2rdd9/FsMNjYIIz89PtRUc8jwvi+Xz1gRT58hXu2lGWXnkl3/a5OTe/CGBOeNGrZ3 y0pDUDM3Cpf6p+tqOxwhVC1fwqWH3ttJeAOuUdhv5ptP/bHL2kfBZTgFP7DYdKfc5zqI xo+QkUkXb2SIfAhQ7lbmxWJxzul9XARJ0rWskF87NxbNPFK7lJCPQm87VymT9k0Nihum yXUQln5nvtlog3OXda6NUtmVeCz3i9OwLexUcrflONp9o4g/p3rJkOo+t+JpsKO3geUu VPu6D+gGDualRUumDZa5pSAkT2+x7sn5J3e9GQn6ZFSi51r5XFblavEtNLgcRAZk2FUH Ph3w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=LyEIazl60RbVmTM+Cs6/A0yy5dmmGdZPhFsDgF78BU8=; b=JbdW9NM9bMPOzSLEsV4OfrLaO1FZOhAOAB5uwkH7ZtWdSkK1GK4+l/8JXhihEc1e25 LQxZ61Z8t4VY25TXsTNuvBarmYr+ML7+Zj4BX0KanANy5c+Z6Xbpy/cTHab2XTnNlZ/Q +K1DhUqPDmnWRUO+jn1+QTulTA8L2f1tl0t9sCZe/CDLkqtNEs0yS5VBm77ydljYHXLs x4KVYzkHP45FE+eeYucpyXAFOVOrS66gIo/42He/lgwzV7+HLXeDwYCzXWvIHWDnkgXS Kfy7f+dBsEuwSGOqioraFP/bxMezjdS8asW6pUUbP3ObwdoMEndEWczBF34VQV1ShIB2 P2rA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f12si16762098pgd.68.2018.12.27.23.56.35; Thu, 27 Dec 2018 23:56:50 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729953AbeL0UcC (ORCPT + 99 others); Thu, 27 Dec 2018 15:32:02 -0500 Received: from mx2.suse.de ([195.135.220.15]:33500 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729900AbeL0UcC (ORCPT ); Thu, 27 Dec 2018 15:32:02 -0500 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 6ECFBAD88; Thu, 27 Dec 2018 20:32:00 +0000 (UTC) Date: Thu, 27 Dec 2018 21:31:58 +0100 From: Michal Hocko To: Fengguang Wu Cc: Andrew Morton , Linux Memory Management List , kvm@vger.kernel.org, LKML , Fan Du , Yao Yuan , Peng Dong , Huang Ying , Liu Jingqi , Dong Eddie , Dave Hansen , Zhang Yi , Dan Williams Subject: Re: [RFC][PATCH v2 00/21] PMEM NUMA node and hotness accounting/migration Message-ID: <20181227203158.GO16738@dhcp22.suse.cz> References: <20181226131446.330864849@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181226131446.330864849@intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed 26-12-18 21:14:46, Wu Fengguang wrote: > This is an attempt to use NVDIMM/PMEM as volatile NUMA memory that's > transparent to normal applications and virtual machines. > > The code is still in active development. It's provided for early design review. So can we get a high level description of the design and expected usecases please? -- Michal Hocko SUSE Labs