EV - performance stats, how long between an email arriving in journal mailbox to being discoverable in EV?

Hi

EV 9.0.2

I'm trying to get some stats around how long it takes between an email arriving in journal mailbox to being discoverable in EV.

I can pull archiving rates via SQL, and indexing rates via Log Parser.

But I can't think of a good way to automate an large end to end test, besides manually emailing the journal mailbox, then searching in EV to see if the message has been indexed and therefore is discoverable. I am not sure if this is even possible given that EV does not know if there is a big backlog of messages it needs to process in the journal mailbox.

Any suggestions? Thanks!