Re: NUMA TODO-list for xen-devel

[Dario Faggioli <raistlin@linux.it>]

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On Fri, 2012-08-03 at 15:42 -0700, Dan Magenheimer wrote:
> > > [D] - Dynamic memory migration between different nodes of the host. As
> > >        the counter-part of the NUMA-aware scheduler.
> > 
> > I once read about a VMware feature: bandwith-limited migration in the
> > background, hot pages first. So we get flexibility and avoid CPU
> > starving, but still don't hog the system with memory copying.
> > Sounds quite ambitious, though.
> 
> Something like this, but between NUMA nodes instead of physical systems?
> 
> http://osnet.cs.binghamton.edu/publications/hines09postcopy_osr.pdf 
>
Likely. The analogy between this kind of "memory migration" and the
actual live migration we already have is indeed something I want to take
advantage of. The fact that we support that small thing called
_paravirtualization_ is complicating it all quite a bit, but I'm looking
into it... Thanks for the reference. :-)

Regards,
Dario

-- 
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://retis.sssup.it/people/faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)


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