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

[Andi Kleen]

>   
>    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.

I also didn't see that anywhere in the commit logs.

-Andi