I should add to my above comment about the IC doing this kind of thing in Kubernetes on EC2 instances that they utilize the Amazon Elastic Fabric Adapter, which

I should add to my above comment about the IC doing this kind of thing in Kubernetes on EC2 instances that they utilize the Amazon Elastic Fabric Adapter, which bypasses the ethernet NIC to avoid all of the queueing delay you can't tolerate in applications that need to be basically unaware that some threads are local and some are remote. And obviously they make sure your servers are in the same or physically nearby racks.