[Devel] Re: [ckrm-tech] containers development plans (July 10 version)

Balbir Singh balbir at linux.vnet.ibm.com
Wed Jul 11 10:10:09 PDT 2007

Serge E. Hallyn wrote:
> Quoting Paul Menage (menage at google.com):
>> On 7/11/07, Takenori Nagano <t-nagano at ah.jp.nec.com> wrote:
>>> Hi,
>>> I think Balbir's idea is very simple and reasonable way to develop per 
>>> container
>>> swapping. Because kernel needs the information that a target page belongs 
>>> to
>>> which container. Fortunately, we already had page based memory management 
>>> system
>>> which included in RSS controller. I think it is appropriate that we 
>>> develop per
>>> container swapping on page based memory management system.
>> So what about people who want to do per-container swapping without
>> using a page-based memory controller?
> Hmm, yes, I'm a few steps behind, but will what Balbir is suggesting
> prevent me from just using a per-container swapfile for checkpointing
> an application?  (where the checkpoint consists of kicking out the
> dirty pages to swap and making a new copy-on-write version of the
> swapfile)

I don't think it should. However, it would be nice to start this effort
right away, so that we can ensure it works both for memory control
and containers.

> thanks,
> -serge

	Warm Regards,
	Balbir Singh
	Linux Technology Center

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