imap server performance benchmarks

[Da Rock]

I'm reconsidering my current setup (postfix/courier) for imap and I was 
doing some research on performance comparisons between imap server 
setups. I stumbled on this article just just about fell of my chair 
laughing when I read the last article on future benchmarking tests to 
perform:

research.microsoft.com/pubs/138302/lisa.pdf

Considering I have close to a hundred folders or more, and an average of 
50,000 emails in each (yes, not good, and I am working on archiving but 
it won't help _that_ much) with nearly 200,000 in just one! I got a real 
kick out of the comment that "no sane email user would have more than 
21,000 emails in a folder" - that would make me certifiable :D Oh, and 
that most email wouldn't be more than a GB or so... mine's edging 6GB 
already...

So, all jokes aside, I contemplated that I would make an ideal test case 
to the extreme for benchmarking imap servers. Anyone have any 
suggestions on what to test/how? Anyone have some tools they have 
created for a similar challenge? I have my own ideas, but if anyone 
wants me to try something I'd be willing to give it a shot.

If anyone has a better idea on which list this should be posted to as 
well - I considered the lists available (I'm hooked up to most) and 
couldn't see any better.