Re: [PATCH v3 2/2] proc: add /proc/<pid>/arch_state

[Peter Zijlstra]

On Thu, Nov 15, 2018 at 07:00:07AM +0800, Aubrey Li wrote:
> Add a /proc/<pid>/arch_state interface to expose per-task cpu specific
> state values.
> 
> Exposing AVX-512 Hi16_ZMM registers usage is for the user space job
> scheduler to cluster AVX-512 using tasks together, because these tasks
> could cause core turbo frequency drop.

I still don't much like the name; how about arch_simd_state ? Also,
since we're printing an integer, I still prefer we go print the turbo
license level. I know level 1 isn't too interesting atm, but consider
future hardware widening the thing again and us growing level 3 or
something.

Also; you were going to shop around with the other architectures to see
what they want/need for this interface. I see nothing on that.