Attached is the example Power Pivot Model I used to analyse Report Server Logs complete with 3D pie chart to shock the DataViz world 😉
I want to get time to extend this to include a lot of the “version 3” data which includes per Dataset metrics on query and processing time.
Feel free to use this as a starting point for analysing Report Server performance or usage.

You’ll need to update the connection in the Power Picot window to point to your ReportServer database.