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Re: containers development plans (July 10 version) [message #14796 is a reply to message #14793] Wed, 11 July 2007 06:06 Go to previous messageGo to previous message
Paul Menage is currently offline  Paul Menage
Messages: 642
Registered: September 2006
Senior Member
On 7/10/07, Serge E. Hallyn <serge@hallyn.com> wrote:
>
> A (still under construction) list of features we expect to be worked on
> next year looks like this:
> 4. task containers functionality
> specific containers

A couple of more container subsystem requests that have come out of
the Linux Foundation Japan symposium, although I think they've also
been mentioned before more than once - per-container swap and disk I/O
scheduling.

I'm not familiar enough with the current Linux disk scheduler code to
know how easy/hard it is to add rate guarantees on a per-container
basis, but the swap one should be easier.

One potential issue with the swap container is how integrated should
it be with the memory controller? I can certainly see people wanting
to be able to use a swap controller without requiring a page-based
memory controller (e.g. you might want to combine it with node-based
control via cpusets instead) but adding two pointers to the mm_struct,
one for swap controller subsystem and one for memory controller
subsystem, seems a little bit ugly.

Paul

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