"kernel on a kernel" is one of the worst things you can do to a distributed computing environment. This is why Google does containers. I have double digit thou

"kernel on a kernel" is one of the worst things you can do to a distributed computing environment. This is why Google does containers. I have double digit thousands of machines for one application, and have an Excel spreadsheet outlining the additional hardware that would need to be purchased to handle the same workload but virtualized. I pull it out every time some recent Stanford grad tells me the cloud is the future.