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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 C7CECC433E0 for ; Fri, 29 May 2020 07:25:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 92C62207BC for ; Fri, 29 May 2020 07:25:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590737125; bh=SEGf7HPanKZuuMLH9HEIWpQrN2M5+ZEQMhjjVYgR1GE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=IaldXYtOf9SV89N82Rmsi10j3gVD/F+xXXVej173cz+cVgktEMO8BGm5vx7sT8ctu hfOfkoFZ1IsL2aI9liwOH183A5Q/6QgFNEeskCnSWu+BRExkV5qthKOV+8Mtgf4oDS RBW7AQzGEe5Wrl+QRU4SVJgjW3BvPdOKXiaPxo1Q= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725836AbgE2HZZ (ORCPT ); Fri, 29 May 2020 03:25:25 -0400 Received: from mail-wr1-f66.google.com ([209.85.221.66]:37756 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725355AbgE2HZY (ORCPT ); Fri, 29 May 2020 03:25:24 -0400 Received: by mail-wr1-f66.google.com with SMTP id x13so2247575wrv.4; Fri, 29 May 2020 00:25:23 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=Cu9vzNZYc7Xw8z9bCnT/mNbRyFHSEb5aY4LsyXQDvtk=; b=YrPWLBXp6/zcPwAl433ddMJ7NYhVyXgL7hx7q2+PkQyJcEjIwykx0J5O0wKQiMsWzz Z9OBa2x8MopgAzXShlHXiGvdDJ9iIOU5tsWPvO/GtTmO7FW0fwVaFbLekwZdNjLWhuv7 vxRCrKfCYxDt4VS8OsTrVfUCYGYXRxlT7WtxtMn10gldf9mY6tuwNrFlgTNXhJwIOmut Q0C8e0oEWmiJAPANZyr078oBooM9JjILHph2j2xTh6wu9qoTgkwInzgbtyIMd+Q5w6N4 Gn7ddi4jB+F97uHtSVlEVe0AYDfLY9eTKToAQPXkSMguUrDUEpTdAqP+PWujnvFbm2I2 essw== X-Gm-Message-State: AOAM531cY6wp2Cty1FqNSLPSGrR0fO9jb+tWB2qcAAkmm/71qtnYZoo2 X8iKfD6Rh0Z5ar3GrC1/7tw= X-Google-Smtp-Source: ABdhPJwf7DObSBiktuX8OHOA8HzkfiD7CcXiSTDiz9IrSF4MaH1zYmpZrK7vPF6TDC0tV1NJi4Yh7w== X-Received: by 2002:a5d:4484:: with SMTP id j4mr7133757wrq.325.1590737122925; Fri, 29 May 2020 00:25:22 -0700 (PDT) Received: from localhost (ip-37-188-185-40.eurotel.cz. [37.188.185.40]) by smtp.gmail.com with ESMTPSA id b9sm8810619wrt.39.2020.05.29.00.25.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 May 2020 00:25:21 -0700 (PDT) Date: Fri, 29 May 2020 09:25:20 +0200 From: Michal Hocko To: Johannes Weiner Cc: Chris Down , Shakeel Butt , Andrew Morton , Tejun Heo , Linux MM , Cgroups , LKML , Kernel Team Subject: Re: [PATCH] mm, memcg: reclaim more aggressively before high allocator throttling Message-ID: <20200529072445.GD4406@dhcp22.suse.cz> References: <20200520143712.GA749486@chrisdown.name> <20200528194831.GA2017@chrisdown.name> <20200528202944.GA76514@cmpxchg.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200528202944.GA76514@cmpxchg.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu 28-05-20 16:29:44, Johannes Weiner wrote: [...] > How about this: > > Reclaim memcg_nr_pages_over_high in the first iteration, then switch > to SWAP_CLUSTER_MAX in the retries. Yes, that makes much more sense to me. -- Michal Hocko SUSE Labs