[RFC v1 PATCH 0/11] Optimize this_cpu_*() ops for non-x86 (ARM64 for this series)

[David Hildenbrand (Arm)]

> =========
> The benchmarks are done on 160 core AmpereOne machine. The baseline is
> v7.1-rc1 kernel.
> 
> 1. Kernel Build
> ---------------
> Run kernel build (make -j160) with the default Fedora kernel config in a
> memcg.
> 13% - 18% sys time improvment
> 3% - 7% wall time improvement

This is pretty impressive!

There was quite some feedback during the LSF/MM session, what's the current plan?

Also, it was raised that Linus so far didn't enjoy per-process page tables. Is
there a way forward?


Finally, in the LSF/MM session, there was the question why the preemption
handling is even required. Can you describe what the problem is?

-- 
Cheers,

David