| Re: Re: [ckrm-tech] containers development plans (July 10 version) [message #14843 is a reply to message #14840] |
Wed, 11 July 2007 17:10   |
Balbir Singh
Messages: 491
Registered: August 2006
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Senior Member |
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Serge E. Hallyn wrote:
> Quoting Paul Menage (menage@google.com):
>> On 7/11/07, Takenori Nagano <t-nagano@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
IBM, ISTL
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