Re: [RFC v2 PATCH 0/8] CFS Hard limits - v2

[Bharata B Rao]

On Wed, Sep 30, 2009 at 05:36:29PM +0400, Pavel Emelyanov wrote:
> Bharata B Rao wrote:
> > Hi,
> > 
> > Here is the v2 post of hard limits feature for CFS group scheduler. This
> > RFC post mainly adds runtime borrowing feature and has a new locking scheme
> > to protect CFS runtime related fields.
> > 
> > It would be nice to have some comments on this set!
> 
> I have a question I'd like to ask before diving into the code.
> Consider I'm a user, that has a 4CPUs box 2GHz each and I'd like
> to create a container with 2CPUs 1GHz each. Can I achieve this
> after your patches?

I am not sure if I understand the GHz specification you mention here.
Are you saying that you want run a container with 2 CPUS with each of
them running at half their (frequency)capacity ?

This hard limits scheme is about time based rate limiting where you can
specify a runtime(=hard limit) and a period for the container and the
container will not be allowed to consume more than the specified CPU time
within a given period.

Regards,
Bharata.
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