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SubjectRe: [PATCH 4/4] perf, x86: Add PERF_COUNT_HW_NMI_WATCHDOG event

* Don Zickus <dzickus@redhat.com> wrote:

> From: Cyrill Gorcunov <gorcunov@gmail.com>
>
> Due to restriction and specifics of Netburst PMU we need
> a separated event for NMI watchdog. Note that on all other
> than P4 PMU cpus this event is a simple alias for PERF_COUNT_HW_CPU_CYCLES.
>
> This event is only used by x86 for now so no other archs involved.

hm, there's no explanation exactly why this is needed and what the alternatives
are.

This sentence:

> + /* we use that named non-sleeping calls */

does not parse for me.

Thanks,

Ingo


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