Currently PI Analysis Service has a built-in Statistics tool in PI System Explorer.

It is able to show statistics regarding Evaluation and Calculation Lag as well as Skipped Evaluations and some other important information.

PI System Explorer could run these statistics periodically and notify the user (in the Management tab or in the Analysis tab itself) whenever a PI Analysis has its parameters out of certain values (could cause a bad performance)

So that the users could avoid performance issues more easily.