Created attachment 1221665 [details]
screen shot of VM NOR

Description of problem:
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NOR CPU and memory % usage can sometimes be off.See attached screen shot.

In the attached screen shot,
max CPU = 26.15 MHz, max CPU usage % = 52.49 %
high CPU = 28.23 MHz, high CPU usage % = 2.06 %

Total memory allocated to VM  = 2048 MB
1)max memory = 45.11 MB, max memory usage % = 75 %
  memory usage % in this case is actually 2.02 % and not 75%
2)high memory = 34.63 MB, high memory usage % = 9.78 %
  memory usage % in this case is 1.69 %


Version-Release number of selected component (if applicable):
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5.6.3
5.7.0.10


How reproducible:
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Sometimes


Steps to Reproduce:
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1.Enable C&U collection for a managed provider.
2.Collect C&U data for a few days.
3.Navigate to the summary page of a VM.View NOR on the summary page.


Actual results:
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NOR CPU and memory usage % can sometimes be off.


Expected results:
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NOR CPU and memory usage % should be more accurate. 


Additional info:
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