Re: [PATCH 0/9] namespaces: Introduction

From: Sam Vilain
Date: Fri May 19 2006 - 20:59:17 EST

On Fri, 2006-05-19 at 05:41 -0600, Eric W. Biederman wrote:
> > It would help set minds at ease if someone could produce a
> > bullet-point list of what features the kernel will need to get it to the
> > stage where "most or all vserver and openvz functionality can be
> > implemented by controlling resource namespaces from userspace." Then we
> > can discuss that list, make sure that everyone's pretty much in
> > agreement.
> So this is slightly the wrong question. If you look at Sam's list you

Yes - the wrong question because it's too top down and encourages
hacks :) It's wrong for the purposes of planning an implementation, but
ok for easing minds about what will be covered, I think.

> will see that there are several independent dimensions to the complete
> solution. Most of them dealing with the increase in the number of users
> and the amount of work that is happening on a single kernel in this
> context.
> Basically we need to expect a lot of kernel tuning after we get the
> basics working.
> The proper question is: What needs to happen before we can run separate
> user space instances?

My guess would be most of the points under "isolation". The others are
really just fine tuning / resource partitioning and fixing various
things that break under virtualisation because of their design (eg,


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