Abstract: A system and method for evaluating resource utilization are provided. The utilization of each subsystem can then be displayed in a manner enabling a user to easily evaluate performance evaluation. The present invention determines whether any of the resources constituting a computer system are subject to a heavy load by entering system management facility records and comparing them with preset threshold values for resource utilization ratios. The job or resource which has subjected this resource to a heavy load is then identified as the bottleneck. The result is presented to the user via a graphical display.