From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx169.postini.com [74.125.245.169]) by kanga.kvack.org (Postfix) with SMTP id CD0B36B0032 for ; Fri, 17 May 2013 12:57:18 -0400 (EDT) Received: by mail-qe0-f46.google.com with SMTP id f6so2836751qej.19 for ; Fri, 17 May 2013 09:57:17 -0700 (PDT) Date: Fri, 17 May 2013 09:57:12 -0700 From: Tejun Heo Subject: Re: [patch v3 -mm 1/3] memcg: integrate soft reclaim tighter with zone shrinking code Message-ID: <20130517165712.GB12632@mtj.dyndns.org> References: <1368431172-6844-1-git-send-email-mhocko@suse.cz> <1368431172-6844-2-git-send-email-mhocko@suse.cz> <20130517160247.GA10023@cmpxchg.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130517160247.GA10023@cmpxchg.org> Sender: owner-linux-mm@kvack.org List-ID: To: Johannes Weiner Cc: Michal Hocko , Andrew Morton , linux-mm@kvack.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, KAMEZAWA Hiroyuki , Ying Han , Hugh Dickins , Glauber Costa , Michel Lespinasse , Greg Thelen , Balbir Singh Hello, Johannes. On Fri, May 17, 2013 at 12:02:47PM -0400, Johannes Weiner wrote: > There are setups with thousands of groups that do not even use soft > limits. Having them pointlessly iterate over all of them for every > couple of pages reclaimed is just not acceptable. Hmmm... if the iteration is the problem, it shouldn't be difficult to build list of children which should be iterated. Would that make it acceptable? 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