Kubernetes predecessors like Mesos/Aurora tend to already run on metal, but workloads are still going through the kernel for I/O. To take advantage of this, you

Kubernetes predecessors like Mesos/Aurora tend to already run on metal, but workloads are still going through the kernel for I/O. To take advantage of this, you would expose NICs and SSDs directly to applications, potentially bypassing the controls currently offered around containers (because these are enforced in the kernel).