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=-1.0 required=3.0 tests=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 B8490C433DF for ; Fri, 29 May 2020 07:25:25 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 70566207D4 for ; Fri, 29 May 2020 07:25:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 70566207D4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 162D58001A; Fri, 29 May 2020 03:25:25 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 113A580010; Fri, 29 May 2020 03:25:25 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id F1CAB8001A; Fri, 29 May 2020 03:25:24 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0165.hostedemail.com [216.40.44.165]) by kanga.kvack.org (Postfix) with ESMTP id D7F3880010 for ; Fri, 29 May 2020 03:25:24 -0400 (EDT) Received: from smtpin06.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 8C08D181AEF1D for ; Fri, 29 May 2020 07:25:24 +0000 (UTC) X-FDA: 76868920968.06.lip66_1211648891234 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin06.hostedemail.com (Postfix) with ESMTP id 6228010048085 for ; Fri, 29 May 2020 07:25:24 +0000 (UTC) X-HE-Tag: lip66_1211648891234 X-Filterd-Recvd-Size: 2853 Received: from mail-wr1-f65.google.com (mail-wr1-f65.google.com [209.85.221.65]) by imf42.hostedemail.com (Postfix) with ESMTP for ; Fri, 29 May 2020 07:25:24 +0000 (UTC) Received: by mail-wr1-f65.google.com with SMTP id y17so2180668wrn.11 for ; 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=ropAe/0oPacEdIDsWbeAr5RaZluHnQY5ZLhCdLXY+ylmHNGNDnF2iIPlyVHmevf6fs O/VrsuXwoheBNIkEDQdY9O3ip92ujZAqp1LgsL9te1J0aUtDBaHGId98uc1FN/1F0UEv D4kGddwQYQtCaJ326qThc0l19SAzp5GIipydJAXQAvqs64ais7+ojhiUE7j7tI38p+Fq x0YAP6cjGxi8IwDrPKBKVEQC0fNOuobbXyI1bg2vJDCo+DkZf/1tqZdB1kg8549+jzEC XNniPrCm3dxPp+8ysXy9+ZjQk8iwTpHTWQhPVOc0fo+lyuVH0WvRODEzBZfNx7LP7clH voaA== X-Gm-Message-State: AOAM532xsmVUwC/3rycsqE2eH+EGZoQw8OiNmWXakbMVtqKib7M+4glL 7ZOG04t79RMU97vN83I1QhU= 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> X-Rspamd-Queue-Id: 6228010048085 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 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: 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