Is it possible to provide an interface for other providers to read
data from the hardware performance counters?

The current CPC provider gives us hardware "events", but not the
actual value of the counters. Say if I am interested in the number of
cache misses caused a function, I can't even with the support of the
CPC provider, as I don't have access to the values of the counters
inside the PID provider...

Rayson
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