A colleague of mine introduced me to TinyGet a few weeks ago. Since then it's been my friend! TinyGet is a tool which can be used to make calls to a web server, to simulate traffic for example. It's part of the IIS 6 Resource Kit, which is available to freely download from Microsoft's web site.
Here is an example of call you might wish to make :
tinyget -srv:localhost -uri:/enterprisevault/listarchives.aspx -auth:1 -u:ev\pfg3 Passw0rd -threads:30 -loop:50
If you run that from your EV server, it will talk to the localhost on the URL you mention, with a specific username and password, spinning up 30 threads, and looping 50 times in total.
You get a very satisfying spew of information in to your IIS logs, and of course whilst that's running you could then do other things, like retrieval of archived items from the Outlook client, to see whether the load on the EV server impacts the...