Reza Rad analyzes Power BI logs in Power BI:
Power BI dashboard and reports come with a usage metric, which you can see how users used this content. There is another report for usage metrics across the entire tenant, which you can see if you have access to the Power BI Administrator account under Admin Panel in the Power BI Service. However, what if you want to create your own detailed usage metrics report across the entire tenant? How if you want to see across all workspaces in the tenant, how was the consumption of reports and dashboards? Who created reports, who are users of them, in which workspace these are located and etc. This information is not easily accessible in the Power BI Service. In this article and video, I will show you how to extract the Audit log from Office 365, export it into text files, and create a Power BI report from it, or in other words, How to create your custom usage metrics report across the tenant. If you like to learn more about Power BI, read the Power BI book from Rookie to Rock Star.
Click through for a video as well as the full blog post.