Re: [Qemu-devel] [PATCH 1/2] sched: add virt sched domain for the guest

[Peter Zijlstra]

On Wed, 2012-05-23 at 16:10 +0800, Liu ping fan wrote:
> the movement of vcpu
> threads among host nodes will break the topology initialized by -numa
> option. 

You want to remap vcpu to nodes? Are you bloody insane? cpu:node maps
are assumed static, you cannot make that a dynamic map and pray things
keep working.

Also, have you any idea how expensive it is to rebuild the topology vs
migrating the vcpu?