Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757194Ab2BWWfq (ORCPT ); Thu, 23 Feb 2012 17:35:46 -0500 Received: from mail-pz0-f46.google.com ([209.85.210.46]:63321 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756405Ab2BWWfo (ORCPT ); Thu, 23 Feb 2012 17:35:44 -0500 Date: Thu, 23 Feb 2012 14:34:57 -0800 From: Tejun Heo To: Vivek Goyal Cc: Peter Zijlstra , Li Zefan , containers@lists.linux-foundation.org, cgroups@vger.kernel.org, Andrew Morton , Kay Sievers , Lennart Poettering , Frederic Weisbecker , linux-kernel@vger.kernel.org, Christoph Hellwig Subject: Re: [RFD] cgroup: about multiple hierarchies Message-ID: <20120223223457.GJ22536@google.com> References: <20120221211938.GE12236@google.com> <20120222163858.GB4128@redhat.com> <20120222165714.GC4128@redhat.com> <1329990094.24994.64.camel@twins> <20120223213847.GK19691@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20120223213847.GK19691@redhat.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1153 Lines: 29 On Thu, Feb 23, 2012 at 04:38:47PM -0500, Vivek Goyal wrote: > On Thu, Feb 23, 2012 at 10:41:34AM +0100, Peter Zijlstra wrote: > > On Wed, 2012-02-22 at 11:57 -0500, Vivek Goyal wrote: > > > > > > Again, it does not mean I am advocating flat hiearchy. I am just wondering > > > in case of fully nested hierarchies (task at same level as groups), how > > > does one explain it to a layman user who understands things in terms of > > > % of resources. > > > > If your complete control is % based then I would assume its a % of a %. > > Simple enough. > > But % of % will vary dynamically and not be static. So if root has got > 100% of resources and we want 25% of that for a group, then hierarchy > might look as follows. It is complex but semantics is pretty well defined. It should behave exactly the same as HTB. Whether the complexity would be justifiable is a different issue. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/