Re: [Xen-devel] [PATCH] x86/S3: Restore broken vcpu affinity on resume (v4)

[Keir Fraser <keir.xen@xxxxxxxxx>]

On 02/04/2013 08:49, "Jan Beulich" <JBeulich@xxxxxxxx> wrote:

>>> Thanks George.
>>> 
>>> Jan,
>>> 
>>> Is this a sufficient Ack, or does Kier need to weigh in as well?
>> 
>> Acked-by: Keir Fraser <keir@xxxxxxx>
>> 
>> I kind of feel this sort of thing should be done in dom0 userspace but,
>> pragmatically, I know that's not really going to happen!
> 
> How would that work, considering the Dom0's vCPU affinities are
> equally affected, and considering that all domains get thawed at
> once? Minimally you'd have a burst of (overcommit) load on pCPU0
> right after resume, and whether the system would survive that is
> impossible to predict.

Ha, yes, well you'd put freeze/thaw in dom0 too. Well, it wasn't really a
serious suggestion on my part, what we have works, this new patch will also
work, and I'm happy. :)

 -- Keir



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