Hi,
This is an informational field. It is not used on perf_events. It reports
the counters on which the
event can be measured. It is not exported via the libpfm4 API. In
perf_events the kernel knows
those constraints and schedules the event appropriately.
On Mon, Dec 16, 2013 at 8:41 PM, Wei Wang <[email protected]> wrote:
> Hi,
>
> Could anybody please tell me the meaning of "cntmsk" in structure
> "intel_x86_entry_t"? It has the comment "supported counters", but I don't
> quite understand what kind of counters are "supported" and what are
> "unsupported". Additionally, it seems that "cntmsk" is not used much in the
> code?
>
> Thank you,
> Wei
>
>
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