[RFC PATCH 1/1] perf tools: Add 'm' event modifier for counting machine

Atish Patra atishp at atishpatra.org
Tue Jan 11 10:59:43 PST 2022


On Tue, Jan 11, 2022 at 10:53 AM Andi Kleen <ak at linux.intel.com> wrote:
>
>
> >
> >    u - user-space counting
> >    k - kernel counting
> > + m - machine counting
>
>
> You really need to explain what "machine counting" actually is, as well
> that is likely irrelevant for most CPUs.
>

Ideally, this should firmware counting instead of "machine counting"
which is a RISC-V specific terminology
(Machine mode is highest privilege mode similar to EL3 in ARM where
the firmware runs)

> I also didn't see that anywhere in the commit logs.
>
> -Andi
>
>
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-- 
Regards,
Atish



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