OpenVZ Forum


Home » Mailing lists » Devel » [patch00/05]: Containers(V2)- Introduction
Re: [ckrm-tech] [patch00/05]: Containers(V2)- Introduction [message #6616 is a reply to message #6584] Wed, 20 September 2006 19:09 Go to previous messageGo to previous message
Chandra Seetharaman is currently offline  Chandra Seetharaman
Messages: 88
Registered: August 2006
Member
On Wed, 2006-09-20 at 09:25 -0700, Christoph Lameter wrote:

For some reason the email i sent about 30 mins back didn't make it...
her is a resend.

> On Tue, 19 Sep 2006, Rohit Seth wrote:
>
> > For example, a user can run a batch job like backup inside containers.
> > This job if run unconstrained could step over most of the memory present
> > in system thus impacting other workloads running on the system at that
> > time. But when the same job is run inside containers then the backup
> > job is run within container limits.
>
> I just saw this for the first time since linux-mm was not cced. We have
> discussed a similar mechanism on linux-mm.
>
> We already have such a functionality in the kernel its called a cpuset. A

Christoph,

There had been multiple discussions in the past (as recent as Aug 18,
2006), where we (Paul and CKRM/RG folks) have concluded that cpuset and
resource management are orthogonal features.

cpuset provides "resource isolation", and what we, the resource
management guys want is work-conserving resource control.

cpuset partitions resource and hence the resource that are assigned to a
node is not available for other cpuset, which is not good for "resource
management".

chandra
PS:
Aug 18 link: http://marc.theaimsgroup.com/?l=linux-
kernel&m=115593114408336&w=2

Feb 2005 thread: http://marc.theaimsgroup.com/?l=ckrm-
tech&m=110790400330617&w=2

> container could be created simply by creating a fake node that then
> allows constraining applications to this node. We already track the
> types of pages per node. The statistics you want are already existing.
> See /proc/zoneinfo and /sys/devices/system/node/node*/*.
>
> > We use the term container to indicate a structure against which we track
> > and charge utilization of system resources like memory, tasks etc for a
> > workload. Containers will allow system admins to customize the
> > underlying platform for different applications based on their
> > performance and HW resource utilization needs. Containers contain
> > enough infrastructure to allow optimal resource utilization without
> > bogging down rest of the kernel. A system admin should be able to
> > create, manage and free containers easily.
>
> Right thats what cpusets do and it has been working fine for years. Maybe
> Paul can help you if you find anything missing in the existing means to
> control resources.
>
> ------------------------------------------------------------ -------------
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share your
> opinions on IT & business topics through brief surveys -- and earn cash
> http://www.techsay.com/default.php?page=join.php&p=sourc eforge&CID=DEVDEV
> _______________________________________________
> ckrm-tech mailing list
> https://lists.sourceforge.net/lists/listinfo/ckrm-tech
--

------------------------------------------------------------ ----------
Chandra Seetharaman | Be careful what you choose....
- sekharan@us.ibm.com | .......you may get it.
------------------------------------------------------------ ----------

Report message to a moderator

[Message index]
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: Re: Re: namespace and nsproxy syscalls
Next Topic: [Lxc-devel] [patch 093/203] pidspace: is_init()
Goto Forum:
  

[ Syndicate this forum (XML) ] [ RSS ] [ PDF ]

Current Time: Mon Nov 24 03:16:00 GMT 2025

Total time taken to generate the page: 0.13996 seconds
Powered by FUDforum Powered by Virtuozzo Containers