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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 40A53C47258 for ; Fri, 26 Jan 2024 00:04:49 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id B1FF06B0075; Thu, 25 Jan 2024 19:04:48 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id AD07E6B0078; Thu, 25 Jan 2024 19:04:48 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 998686B007B; Thu, 25 Jan 2024 19:04:48 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 895076B0075 for ; Thu, 25 Jan 2024 19:04:48 -0500 (EST) Received: from smtpin30.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 32C1480EC1 for ; Fri, 26 Jan 2024 00:04:48 +0000 (UTC) X-FDA: 81719516256.30.40348CB Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by imf04.hostedemail.com (Postfix) with ESMTP id 128824001F for ; Fri, 26 Jan 2024 00:04:45 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=Blycz+y1; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf04.hostedemail.com: domain of sj@kernel.org designates 145.40.73.55 as permitted sender) smtp.mailfrom=sj@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1706227486; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=njrRTokaCLaN6gejZLM04/OH1UmSBUVz0n3PGPTkWxo=; b=qfZy3IqFu4VVV0W3Q2w8C9I/s27dRWdAdqzJ/XZtjEJRIgToCK3rC/JPRAYlasH2kcRY47 e78OE1hfyScFUiLzui0D2NKKmoTM6R6FPWCLH+A5qRM8f2rJGz4WwSyBlKBznNFx5dHG0Q nrE1wGzizHaVpKRxUTJFcXdz5QfmSDY= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=Blycz+y1; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf04.hostedemail.com: domain of sj@kernel.org designates 145.40.73.55 as permitted sender) smtp.mailfrom=sj@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1706227486; a=rsa-sha256; cv=none; b=TjRFQfqIyiZhzEObjJovJH6V6nLkcPUrJ5u2bb+0s2mSPH7vp6yJBthP2UUT6MfOyy1jii RpnwZMqtYPlBTJp7eIF0/oCHU6QNF1Yzh8qFsPzTf78CI5juce9wngovuYYiBFSEaal5yq OZHv4F4pgU/FKp2zR3Bhv85WksNEfaI= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 3E835CE3597; Fri, 26 Jan 2024 00:04:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3719EC433C7; Fri, 26 Jan 2024 00:04:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706227481; bh=LKvUdbyOeVco0rWxZ979yP/+9x0F57cxS7WEyA7WwJo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Blycz+y1nJh+4PohG5Rho/dr1VpjE9Q1fWWEWAiEv1Y/qRcVi7Pw8LCJ4g4/uDV/1 2e/4FrdPMMKoRsPuS/OdJaYpO5kzL+9hY+iHclmuKpta2/M2cOLN8XOgRv0oh5MRKd /ZBa+q90flQZpikoc1/AObcwrg6eNuzd2FNlJOGruMRIDKuRiKxbih7AUxiP8nFOVK iOKbG+oWBPzzxanOxyOvhjel/M87qW9yLbyXkB4SPuy76rop+BgM6DmaRluS68Jb3q NiQqH43ZdTuE96Uu78vS+UurEAztVWbDhoo+B/Ugv7QMcb0hAiXLGHZh7QpzLOL/YX LuxYbC3ZezjqA== From: SeongJae Park To: David Rientjes Cc: John Hubbard , Zi Yan , Bharata B Rao , Dave Jiang , "Aneesh Kumar K.V" , "Huang, Ying" , Alistair Popple , Christoph Lameter , Andrew Morton , Linus Torvalds , Dave Hansen , Mel Gorman , Jon Grimm , Gregory Price , Brian Morris , Wei Xu , Johannes Weiner , linux-mm@kvack.org Subject: Re: [RFC] Memory tiering kernel alignment Date: Thu, 25 Jan 2024 16:04:38 -0800 Message-Id: <20240126000439.13239-1-sj@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <75f21150-1e12-4f4b-e578-e170e4fea18b@google.com> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: z16hwkqo59i96gaseo8y5hqed4dhm6q3 X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 128824001F X-HE-Tag: 1706227485-200571 X-HE-Meta: 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 I+VUJ2wX MHEum6RtdFuSsbz6vNz1cscijln5eH6geW+W6acUFDwxMU/PsjPHTtcMuauqGyEwgFo/zS4MGwMsTXaQme4OGqytP9027OHV5k8jPSbwe9Pgj9hFL0Si4g3mGuwKSC5zMo4zEpxyFPUd7DktwL0sIi1KDb/Fl1wYyponhELb3Zl9IgOv44XIql5FGyeQ07T6yJbCOsIfnstHfqfwtEfnBUB4K+uBVRF3ArKYwmLXHw9GZTXvPkbouH3fR5+yi3D1nLxAPcmKCWUQyMsFVW/SZJ6EPD9gXbx9q+9kQXPKs/jFaQVd9BquGMhqGdy1xm02uHWG1M40K+Xfhas3Wiag8dTctFUT9i3TbTsTwwhme+oo55TPxjb/7rYnS0w== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi David, On Thu, 25 Jan 2024 10:26:19 -0800 (PST) David Rientjes wrote: > Hi everybody, > [...] > I'm interested to learn if there is interest in forming a "Linux Memory > Tiering Work Group" to share ideas, discuss multi-faceted approaches, and > keep track of work items? [...] > If folks are interested in this topic and your name doesn't appear above > (I already got you :), please: > > - reply-all to this email to express interest and expand upon the list > of topics above to represent additional areas of interest that should > be included, *or* > > - email me privately to express interest to make sure you are included I'm taking the option one :) I'm interested in this topic. I'm not directly working on this, but collaborating with several parties who working on the area. Some academic papers[1] exploring the usage have published, and recently SK Hynix released their tiered memory management SDK using DAMON[2]. I also shared a humble idea for DAMOS-based tiered memory management[3]. Please let me in the loop. [1] https://arxiv.org/abs/2302.09468 [2] https://github.com/skhynix/hmsdk/releases/tag/hmsdk-v2.0 [3] https://lore.kernel.org/r/20231112195602.61525-1-sj@kernel.org Thanks, SJ [...]