From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx112.postini.com [74.125.245.112]) by kanga.kvack.org (Postfix) with SMTP id 1556C6B0002 for ; Tue, 23 Apr 2013 08:51:07 -0400 (EDT) Date: Tue, 23 Apr 2013 14:51:01 +0200 From: Michal Hocko Subject: Re: memcg: softlimit on internal nodes Message-ID: <20130423125101.GE8001@dhcp22.suse.cz> References: <20130420002620.GA17179@mtj.dyndns.org> <20130420031611.GA4695@dhcp22.suse.cz> <20130421022321.GE19097@mtj.dyndns.org> <20130422042445.GA25089@mtj.dyndns.org> <20130422153730.GG18286@dhcp22.suse.cz> <20130422154620.GB12543@htj.dyndns.org> <20130422155454.GH18286@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Michel Lespinasse Cc: Tejun Heo , Johannes Weiner , Balbir Singh , KAMEZAWA Hiroyuki , cgroups@vger.kernel.org, linux-mm@kvack.org, Hugh Dickins , Ying Han , Glauber Costa , Greg Thelen On Tue 23-04-13 02:58:19, Michel Lespinasse wrote: [...] > However, your proposal takes that weak guarantee away as soon as one > tries to use cgroup hierarchies with it, because it reclaims from > every child cgroup as soon as the parent hits its soft limit. Reading this again I am really getting confused. The primary objection used to be that under-soft-limit inter-node subtree shouldn't be reclaimed although there are children over their soft limits. Now we have moved to over-limit inder-node shouldn't hammer its subtree? -- Michal Hocko SUSE Labs -- 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