How do I calculate CPU usage?
The logic of CPU calculation in the OnApp Dashboard is as follows:
The CPU used value shows the total number of CPUs used by virtual machines in the cloud.
The Total value shows the number of physical cores in the cloud.
The negative number of CPU is the number of CPUs sold over the number of physical cores in the cloud (see Image 1).
In case the number of CPUs sold is less than the number of physical cores, the number of unused physical cores will be greyed out (see Image 2).