Re: [RFC PATCH v2 0/3] x86/mm/tlb: Defer TLB flushes with PTI

From: Dave Hansen
Date: Tue Sep 03 2019 - 11:17:33 EST


On 8/23/19 3:52 PM, Nadav Amit wrote:
> n_pages concurrent +deferred-pti change
> ------- ---------- ------------- ------
> 1 2119 1986 -6.7%
> 10 6791 5417 -20%
>
> Please let me know if I missed something that affects security or
> performance.

Hi Nadav,

Is this in a VM or on bare metal? Could you also share the bare
/proc/cpuinfo for one of the CPU threads? I want to make sure that any
oddities in the stepping or microcode are known.