>>> On 30.05.17 at 08:41, <o...@aepfle.de> wrote:
> On Mon, May 29, Jan Beulich wrote:
> 
>> Finally I don't think a host wide option will do. If it is to be of use
>> (considering that it used wrong may break applications), it needs
>> to be per-domain, and its value needs to be migrated (perhaps
>> in the form of a low/high pair of TSC frequency values).
> 
> How is it supposed to be propagated from one host to another?
> 
> With the global option one can unconditionally receive a domU and
> preserve "native performance" in case of tsc_mode=default. With a
> per-domU option one has to know upfront.

I don't understand: If the incoming stream tells you the acceptable
clock range, what else do you need to know (upfront or later)?

Jan


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