How to find out the speed of writing and reading files that a process uses?

Question

C++ / C#

I need to calculate the write / read speed (specific file). One process can use multiple file descriptors. But I can only calculate the overall read speed using the PerformanceCounter class . How do I split this speed as shown in the screenshot. I know about winapi and about PerformanceCounter too . I would just like to narrow the circle of search a little, there is no time to study everything in a row. Which function to use from winapi or if there are higher level functions like PerformanceCounter ? If it is not clear, write to clarify the question. Thank you in advance.

Answer 1

make periodic requests to WMI
https://docs.microsoft.com/en-us/windows/win32/wmi...
watch performance data provider
the first link from google is an example , not quite right, but I think to dig through the documentation and finish it.