From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Serge E. Hallyn" Subject: Re: [libvirt] kernel summit topic - 'containers end-game' Date: Tue, 30 Jun 2009 15:06:13 -0500 Message-ID: <20090630200613.GA22283@us.ibm.com> References: <20090623145611.GB19332@us.ibm.com> <661de9470906290335i74f76a55t57438a781e6a84c8@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: <661de9470906290335i74f76a55t57438a781e6a84c8@mail.gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com To: Balbir Singh Cc: Linux Containers , libvir-list@redhat.com List-Id: containers.vger.kernel.org Quoting Balbir Singh (balbir@linux.vnet.ibm.com): > On Tue, Jun 23, 2009 at 8:26 PM, Serge E. Hallyn wrot= e: > > A topic on ksummit agenda is 'containers end-game and how do we > > get there'. > > > > So for starters, looking just at application (and system) containers,= what do > > the libvirt and liblxc projects want to see in kernel support that is= currently > > missing? =A0Are there specific things that should be done soon to mak= e containers > > more useful and usable? > > > > More generally, the topic raises the question... what 'end-games' are= there? > > A few I can think of off-hand include: > > > > =A0 =A0 =A0 =A01. resource control >=20 > We intend to hold a io-controller minisummit before KS, we should have > updates on that front. We also need to discuss CPU hard limits and > Memory soft limits. We need control for memory large page, mlock, OOM > notification support, shared page accounting, etc. Eventually on the > libvirt front, we want to isolate cgroup and lxc support into > individual components (long term) Thanks, Balbir. By the last sentence, are you talking about having cgroup in its own libcgroup, or do you mean something else? On the topic of cgroups, does anyone not agree that we should try to get rid of the ns cgroup, at least once user namespaces can prevent root in a container from escaping their cgroup? thanks, -serge