CODEWITHSUNDEEP
windowswmiwmi-query
Matt
Matt

Reputation: 26981

Does WMI data exist only when a program fetches it?

Let's say I fetch data from select * from Win32_TemperatureProbe - is that location populated with the sensor data whether I query it or not, or rather, is it loaded on demand, that is when I query it, the WMI engine in turn interrogates the hardware itself and only then reports the data back - In essence, does the query create overhead beyond simply going to the WMI data store or is it written to anyways?

Upvotes: 1

Views: 55

Answers (1)

John Wurdlack
John Wurdlack

Reputation: 11

WMI itself is a Windows service and the data depends on the provider. In the case of Win32_TemperatureProbe, the data is dynamically provided:

https://learn.microsoft.com/en-us/windows/desktop/cimwin32prov/cimwin32-wmi-providers

Upvotes: 1

Related Questions