the current resource utilization UI for VM is a bar showing percentage from 100%. this doesn't look too nice... please change the bar to a monitor graph. i.e., once this tab has opened, every refresh would redraw the graph with an additional data point (start showing trend of this resource usage from when the graph appears)
Feature page: http://www.ovirt.org/Features/ResourceUsageGraph
verified on :Red Hat Enterprise Virtualization Manager Version: 3.6.2-0.1.el6 polarion test link: https://polarion.engineering.redhat.com/polarion/#/project/RHEVM3/wiki/Compute/3_6_VIRT_Improve_graphs_for_vm_resources?query=TEST_RECORDS:%28%22RHEVM3/3_6_VIRT_Improve_graphs_for_vm_resources_2%22,@any%29&tree_depth=0&sidebar=testrun&testrun=3_6_VIRT_Improve_graphs_for_vm_resources_2&tab=tree
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHEA-2016-0376.html