lkml.org 
[lkml]   [2006]   [Sep]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [ckrm-tech] [patch00/05]: Containers(V2)- Introduction
From
Date
On Wed, 2006-09-20 at 17:42 -0700, Paul Menage wrote:
> On 9/20/06, Paul Jackson <pj@sgi.com> wrote:
> > Chandra wrote:
> > > AFAICS, That doesn't help me in over committing resources.
> >
> > I agree - I don't think cpusets plus fake numa ... handles over commit.
> > You might could hack up a cheap substitute, but it wouldn't do the job.
>
> I have some patches locally that basically let you give out a small
> set of nodes initially to a cpuset, and if memory pressure in
> try_to_free_pages() passes a specified threshold, automatically
> allocate one of the parent cpuset's unused memory nodes to the child
> cpuset, up to specified limit. It's a bit ugly, but lets you trade of
> performance vs memory footprint on a per-job basis (when combined with
> fake numa to give lots of small nodes).

Interesting. So you could set up the fake node with "guarantee" and let
it grow till "limit" ?

BTW, can you do these with fake nodes:
- dynamic creation
- dynamic removal
- dynamic change of size

Also, How could we account when a process moves from one node to
another ?

>
> Paul
--

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


-
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/

\
 
 \ /
  Last update: 2006-09-21 03:49    [W:0.857 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site