From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yk0-f170.google.com (mail-yk0-f170.google.com [209.85.160.170]) by kanga.kvack.org (Postfix) with ESMTP id 933786B0254 for ; Fri, 28 Aug 2015 13:41:43 -0400 (EDT) Received: by ykek5 with SMTP id k5so8791361yke.3 for ; Fri, 28 Aug 2015 10:41:43 -0700 (PDT) Received: from mail-yk0-x22a.google.com (mail-yk0-x22a.google.com. [2607:f8b0:4002:c07::22a]) by mx.google.com with ESMTPS id l22si4512219ywe.105.2015.08.28.10.41.42 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 28 Aug 2015 10:41:42 -0700 (PDT) Received: by ykay144 with SMTP id y144so7320583yka.2 for ; Fri, 28 Aug 2015 10:41:42 -0700 (PDT) Date: Fri, 28 Aug 2015 13:41:40 -0400 From: Tejun Heo Subject: Re: [PATCH 4/4] memcg: always enable kmemcg on the default hierarchy Message-ID: <20150828174140.GN26785@mtj.duckdns.org> References: <1440775530-18630-1-git-send-email-tj@kernel.org> <1440775530-18630-5-git-send-email-tj@kernel.org> <20150828164918.GJ9610@esperanza> <20150828171438.GD21463@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150828171438.GD21463@dhcp22.suse.cz> Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko Cc: Vladimir Davydov , hannes@cmpxchg.org, cgroups@vger.kernel.org, linux-mm@kvack.org, kernel-team@fb.com On Fri, Aug 28, 2015 at 07:14:38PM +0200, Michal Hocko wrote: > On Fri 28-08-15 19:49:18, Vladimir Davydov wrote: > > On Fri, Aug 28, 2015 at 11:25:30AM -0400, Tejun Heo wrote: > > > On the default hierarchy, all memory consumption will be accounted > > > together and controlled by the same set of limits. Always enable > > > kmemcg on the default hierarchy. > > > > IMO we should introduce a boot time knob for disabling it, because kmem > > accounting is still not perfect, besides some users might prefer to go > > w/o it for performance reasons. > > I would even argue for opt-in rather than opt-out. Definitely not. We wanna put all memory consumptions under the same roof by default. Thanks. -- tejun -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org