So I just wanted to provide an update to this.
After some internal discussion, I've decided to open a bug on this issue. While we are not convinced that Splunk is generating invalid data, we are investigating whether or not the data being returned by WMI is valid.
We have, so far, concluded unequivocally that splunk-wmi does, in fact, return non-zero data for average- and per-second performance counters gathered against the local WMI namespace. The questions that remain are:
How reliable or valid is this data?
How is splunk-wmi presenting this data?
Once our investigation is complete, I'll post an update here. In the meantime, there are ways to work around this possible issue:
Use a universal forwarder to collect data from your remote Windows machines, instead of a light forwarder.
Use performance monitoring inputs to get your data, instead of WMI.
Cheers.
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