Due to a major update in our architecture, we now have a few unused application pools under IIS (there are no web sites mapped to them).
I understand how it can a good idea to remove them just to improve readibility, but my question is more about performance implications: Does having these unused application pools matter in term of memory, CPU, IIS request processing speed, or any other performance metric?
From what I can see, an application pool with no web sites does not create a worker process, so I suspect there's no difference in performance, but I want to be sure I'm not missing something.