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 Tony Voellm: In the next few posts I’ll be covering Hyper-V performance counters.  There have been a lot of changes from Beta -> RC -> post RC. 
In Beta the counters sets for Hyper-V were not grouped under a common namespace.  This made them hard to find.  In RC the counters are grouped under the “Hyper-V” namespace.  That is each counter set starts with “Hyper-V.”  For example “Hypervisor Logical Processors” are now “Hyper-V Hypervisor Logical Processors.”  The prefix causes all the Hyper-V counters to be grouped together.
  
Post RC you will see some counter sets get renamed and a few like “Hyper-V VMMS Task Manager Summary"  have been removed because they did not provide a lot of value.  The most notable renaming was “Hyper-V Hypervisor …” rate counters where “/ sec” has been appended to to make it clear they are a rate.  You will also see some counters have been removed. 
Also available: 
Hyper-V Performance Counters – Part two of many – “Hyper-V Hypervisor” counter set
  
Hyper-V Performance Counters – Part three of many – “Hyper-V Hypervisor Logical Processors” counter set 
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