Messages in this thread | | | Date | Wed, 9 Aug 2023 08:59:16 -0300 | From | Jason Gunthorpe <> | Subject | Re: [RFC PATCH 3/3] KVM: x86/mmu: skip zap maybe-dma-pinned pages for NUMA migration |
| |
On Wed, Aug 09, 2023 at 08:11:17AM +0800, Yan Zhao wrote:
> > Can we just tell userspace to mbind() the pinned region to explicitly exclude the > > VMA(s) from NUMA balancing?
> For VMs with VFIO mdev mediated devices, the VMAs to be pinned are > dynamic, I think it's hard to mbind() in advance.
It is hard to view the mediated devices path as a performance path that deserves this kind of intervention :\
Jason
| |