> OProfile has a simplistic view of the performance monitoring hardware. The
> routines in libop/op_alloc_counter.c determine what set of performance registers
> is available from the processor in use. There is no check to see what registers
> are actually available in the /dev/oprofile directory.
>
> opcontrol executes ophelp to determine which specific counters to count which
> events. The function map_event_to_counter() in libop/op_alloc_counter.c does the
> actual selection. It seems what is needed is for map_event_to_counter() to check
> to see which counters are available and mark the others as unavailable
Thanks for the explanation. Can you please fix it and release a new version?
Documentation/Changes could be adapted then.
-Andi
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