Re: [Xen-devel] App virtualisation, not OS virtualisation

[graham <the_ether@xxxxxxxxxxx>]

> > > e OS.
> > >      
> > Not really: Xen is extremely oriented towards encapsulating operating systems.
> > Encapsulating an application (whilst useful) is too "high level" for Xen;
> > it's really a separate problem space, since it'd basically share no code in
> > common with Xens current functionality.
> >    
> On a sort of related note, I was wondering if it was on any roadmap to
> support RAM sharing between OS instances -- like with VMware's clone
> feature (or something like that), I think if you had two very similar
> VMs, they would actually use less RAM and disk than each have, they
> would just diverge where they are different (some sort of
> copy-on-write scheme).
>
> Thanks
>  
Yes, that would solve my concern about wasted resource of having 
multiple copies of the same OS when all I want to do is run multiple apps.
In my case, I don't mind waiting 6 months for the virtualisation-enabled 
AMD or Intel processors to be available.
BTW, in my case I intend using Windows XP embedded which, amongst other 
things, will allow me to reduce the footprint of the Windows OS. I am 
assuming that there shouldn't be any problems with that with the current 
plans for Xen supporting Windows (?).
g.



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