Any cloud provider with sufficient security doesn't allow customers to share SMT cores anyway. For example, AWS hard partitions their physical servers, which i

Any cloud provider with sufficient security doesn't allow customers to share SMT cores anyway. For example, AWS hard partitions their physical servers, which is why you can get exactly 16 m4.xlarge instances, 8 m4.2xlarge, 4 m4.4xlarge, 2 m4.8xlarge, or 1 m4.16xlarge instances on a physical box. I do predict that the VPS providers will see some nasty side-channel attacks in the coming years due to the way they've chosen to share SMT between customers to reduce their costs and overprovision their hardware.