Hi,
I am trying to understand how oprofile works, and so far I have
a question:
When rfi’ing back into user context the PMM is
cleared. However, if PMM is cleared and then a context switch happens (say, to
another CPU-local thread) the counters keep getting incremented. Is that right?
If this is the case, then the PMC statistics account not
just for the current user thread, but also for other ones as well and thus are
not “pure.”
Thanks in advance for your help.
-Ilya