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=-3.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,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 4D361C433E4 for ; Tue, 18 Aug 2020 10:37:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 20DEF204EA for ; Tue, 18 Aug 2020 10:37:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="ZIG+qq8o" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726845AbgHRKgx (ORCPT ); Tue, 18 Aug 2020 06:36:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43138 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726836AbgHRKgt (ORCPT ); Tue, 18 Aug 2020 06:36:49 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 90132C061389; Tue, 18 Aug 2020 03:36:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=PxEaa92aYsiybSQz7oa3HYw1NYI/WkEv9koOqjkqg9g=; b=ZIG+qq8oCuBvwA6kUWik1qng6i gsAHaPDDaBpBiqmSE+bS+HV0Am2meWwZ/5N2iApKqvG82BvkrYckosoFUPFeVdtoPIGxRJLIGHG5t RE8DMo8VfBnHb1OVTyx9cXhLAtMAO79PAXH2sn7L5XgU7REAOmlfJIiASqIf6wGbS/Gxha5Z/XUzH OAVioWo7QCzixURvFN8KwYPR/N9gkEcppIQDoY6sqf/DVwzGAhiOVqeRqAshnGTklMfHCDo6ojldT 7qUlMgUAAii5usQ4/2CQiOvYqv91YNC56GXLP24yc3ZhYTRLZsxbPnXU6bHz/Goss7ihx+L07PvAd TK+aRVPg==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1k7yys-00020X-6A; Tue, 18 Aug 2020 10:36:38 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 6D802305DD1; Tue, 18 Aug 2020 12:36:37 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 3214D2B2C8DCD; Tue, 18 Aug 2020 12:36:37 +0200 (CEST) Date: Tue, 18 Aug 2020 12:36:37 +0200 From: peterz@infradead.org To: Michal Hocko Cc: Waiman Long , Andrew Morton , Johannes Weiner , Vladimir Davydov , Jonathan Corbet , Alexey Dobriyan , Ingo Molnar , Juri Lelli , Vincent Guittot , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org Subject: Re: [RFC PATCH 0/8] memcg: Enable fine-grained per process memory control Message-ID: <20200818103637.GR2674@hirez.programming.kicks-ass.net> References: <20200817140831.30260-1-longman@redhat.com> <20200818091453.GL2674@hirez.programming.kicks-ass.net> <20200818092617.GN28270@dhcp22.suse.cz> <20200818095910.GM2674@hirez.programming.kicks-ass.net> <20200818100516.GO28270@dhcp22.suse.cz> <20200818101844.GO2674@hirez.programming.kicks-ass.net> <20200818103059.GP28270@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200818103059.GP28270@dhcp22.suse.cz> Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Tue, Aug 18, 2020 at 12:30:59PM +0200, Michal Hocko wrote: > The proposal also aims at much richer interface to define the > oom behavior. Oh yeah, I'm not defending any of that prctl() nonsense. Just saying that from a math / control theory point of view, the current thing is a abhorrent failure.