How do I view the CPU Utilization for my RDS instance?

Each RDS instance will display a spark line graph of the last 10 minutes of average CPU Utilization for that instance. You can hover over the spark line to see the CPU utilization for the last minute. If you click on the spark line, a window with all of the detailed cloudwatch charts for that instance will be displayed, and you can drill down into the time period of your choice.