Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750902AbWHPTHd (ORCPT ); Wed, 16 Aug 2006 15:07:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750903AbWHPTHd (ORCPT ); Wed, 16 Aug 2006 15:07:33 -0400 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:61413 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S1750887AbWHPTHc (ORCPT ); Wed, 16 Aug 2006 15:07:32 -0400 Subject: Re: [RFC][PATCH] UBC: user resource beancounters From: Alan Cox To: rohitseth@google.com Cc: Kirill Korotaev , Andrew Morton , Linux Kernel Mailing List , Ingo Molnar , Christoph Hellwig , Pavel Emelianov , Andrey Savochkin , devel@openvz.org, Rik van Riel , hugh@veritas.com, ckrm-tech@lists.sourceforge.net, Andi Kleen In-Reply-To: <1155754427.22595.88.camel@galaxy.corp.google.com> References: <44E33893.6020700@sw.ru> <1155754427.22595.88.camel@galaxy.corp.google.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Wed, 16 Aug 2006 20:26:25 +0100 Message-Id: <1155756386.24077.398.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.6.2 (2.6.2-1.fc5.5) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1118 Lines: 25 Ar Mer, 2006-08-16 am 11:53 -0700, ysgrifennodd Rohit Seth: > > pages shared between containers are correctly > > charged as fractions (tunable). > > > > I wouldn't be too worried about doing fractions. Make it unfair and > charge it to either the container who first instantiated the file or the > container who faulted on that page first. Thats no good if you can arrange who gets charged, it becomes possible to accumulate the advantages and break the constraints intended. > Though the part that seems important is to be able to define a directory > in fs and say all pages belonging to files underneath that directory are > going to be put in specific container. Thats an extremely crude use of beancounters. You can do far more useful things with them and namespaces (and even at times without namespaces) such as preventing one web site breaking another. - 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/