Wikifunctions needs to capture data about functions and function invocations, such as:

• Call latency (how long does this function take to run?)
• Call frequency (how often is a function invoked?)
• Call graph (what calls this function?)

We need to figure out where we're going to store this data, how we are going to query it, and how long we are going to retain it. The first step will be to catalog the various bits of metadata we expect to produce. We've started doing so in this spreadsheet.