Getting VM Memory Usage and Demand Programmatically
A couple of people have recently asked me how to get virtual machine memory usage and memory demand programmatically. What I am referring to is the information that we display here in Hyper-V Manager:
I have blogged about this in the past – but things have changed a bit since then – so I thought I would post an updated code sample. Right here:
There are two main things to call out about this sample:
- This information is all exposed on Msvm_SummaryInformation – which is documented here.
- Memory demand is actually reported as a percentage of the used memory in the underlying API. So to get the same information as is displayed by Hyper-V Manager – you have to do some math (included in the sample above)