I've always been somewhat wary of the self tuning systems. The challenge is that the runtime profile of a well-utilized machine is not always predictable especi

I've always been somewhat wary of the self tuning systems. The challenge is that the runtime profile of a well-utilized machine is not always predictable especially if it is multi-tenant and/or running a mixture of different workloads in a container like abstraction. I think a level higher is easier to manage and understand, so, we're dealing with and managing multiple machines or multiple containers of vm's as processing units. As a whole, that seems more manageable as a self tuning system.