Re: [patch 55/60] x86/mm: Use INVPCID for __native_flush_tlb_single()

[Dave Hansen]

On 12/04/2017 02:51 PM, Peter Zijlstra wrote:
> We should find some of the benchmarks that were used to determine
> tlb_single_page_flush_ceiling and measure. I've not gotten around to
> doing either.
> 
> Someone called Dave Hansen did that patch and might still have something
> lying around to help with that:
> 
>   a5102476a24b ("x86/mm: Set TLB flush tunable to sane value (33)")

I hate git. :)

But, yeah, we have certainly changed enough variables to necessitate
measuring it again.