Metrics section, you can observe the utilization of Processor(s) & Memory (CPU & RAM), Storage (Disk Read & Write), and Network (Bandwidth Download & Upload) over a user-defined time period. 

Use the radio buttons to select time spans such as hour, day, week, month, or year, and customize the graphs to display either average or maximum utilization. 

Save the graphs as an image by right-clicking and selecting Save Image, or as a PDF file by clicking the PDF icon at the top right corner of each graph.