On 5/27/2016 4:19 PM, Lan Tianyu wrote:
> As for the individual issue of 288vcpu support, there are already issues
> with 64vcpu guests at the moment. While it is certainly fine to remove
> the hard limit at 255 vcpus, there is a lot of other work required to
> even get 128vcpu guests stable.
Could you give some points to these issues? We are enabling more vcpus
support and it can boot up 255 vcpus without IR support basically. It's
very helpful to learn about known issues.
Hi Andrew:
We are designing vIOMMU support for Xen. Increasing vcpu
from 128 to 255 also can be implemented parallelly since it doesn't
need vIOMMU support. From your previous comment "there is a lot of other
work required to even get 128vcpu guests stable", you have some concerns
about stability of 128vcpus. I wonder what we need to do before
starting work of increasing vcpu number from 128 to 255?
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