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=-0.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 8A201C3F2CE for ; Wed, 4 Mar 2020 17:02:35 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 5FB4322B48 for ; Wed, 4 Mar 2020 17:02:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5FB4322B48 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lwn.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id EEA0D6B0003; Wed, 4 Mar 2020 12:02:34 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id E729A6B0005; Wed, 4 Mar 2020 12:02:34 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D3B156B0007; Wed, 4 Mar 2020 12:02:34 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0219.hostedemail.com [216.40.44.219]) by kanga.kvack.org (Postfix) with ESMTP id B7F3D6B0003 for ; Wed, 4 Mar 2020 12:02:34 -0500 (EST) Received: from smtpin09.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 37124824999B for ; Wed, 4 Mar 2020 17:02:34 +0000 (UTC) X-FDA: 76558298628.09.list13_337550428e922 X-HE-Tag: list13_337550428e922 X-Filterd-Recvd-Size: 1369 Received: from ms.lwn.net (ms.lwn.net [45.79.88.28]) by imf20.hostedemail.com (Postfix) with ESMTP for ; Wed, 4 Mar 2020 17:02:33 +0000 (UTC) Received: from lwn.net (localhost [127.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ms.lwn.net (Postfix) with ESMTPSA id 37C6B823; Wed, 4 Mar 2020 17:02:32 +0000 (UTC) Date: Wed, 4 Mar 2020 10:02:31 -0700 From: Jonathan Corbet To: Tejun Heo Cc: Benjamin Berg , cgroups@vger.kernel.org, linux-mm@kvack.org, Johannes Weiner Subject: Re: Memory reclaim protection and cgroup nesting (desktop use) Message-ID: <20200304100231.2213a982@lwn.net> In-Reply-To: <20200304163044.GF189690@mtj.thefacebook.com> References: <20200304163044.GF189690@mtj.thefacebook.com> Organization: LWN.net MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000010, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, 4 Mar 2020 11:30:44 -0500 Tejun Heo wrote: > > (In a realistic scenario I expect to have swap and then reserving may= be > > a few hundred MiB; DAMON might help with finding good values.) =20 >=20 > What's DAMON? https://lwn.net/Articles/812707/ jon