Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation

[Paolo Bonzini]

Il 14/04/2013 13:59, Michael S. Tsirkin ha scritto:
> > I agree assuming guest has lots of zero pages won't work, but I think
> > you are overstating the importance of overcommit.  Let's mark the damn
> > thing as experimental, and stop making perfect the enemy of good.
> 
> It looks like we have to decide, before merging, whether migration with
> rdma that breaks overcommit is worth it or not.  Since the author made
> it very clear he does not intend to make it work with overcommit, ever.

To me it is very much worth it.

I would like to understand if unregistration would require a protocol
change, but that's really more a curiosity than anything else.

Perhaps it would make sense to make chunk registration permanent only
after the bulk phase.  Chunks registered in the bulk phase are not
permanent.

Paolo