1. A method, comprising: (a) collecting a value indicating a level of computer resource utilization in a first computer system; (b) selecting a bucket from an array corresponding to the collected value, wherein each bucket from the array contains a count value providing a recorded history of how many times a particular computer resource level value was observed; (c) modifying a count value maintained in the bucket corresponding to the collected value; (d) repeating, iteratively, the operational acts described in paragraphs (a), (b), and (c) for a specified period of time; and (e) generating a report based on the count values contained in the array indicative of the levels of computer resource utilization realized during at least the period of time.