Re: [PATCH 0/2] Speed MTRR programming up when we can

[Thomas Gleixner]

On Thu, 27 Jun 2019, Ricardo Neri wrote:
> By measuring the execution time of mtrr_aps_init() (from which MTRRs
> in all CPUs are programmed in lock-step at boot), I find savings in the
> time required to program MTRRs as follows:
> 
> Platform                      time-with-wbinvd(ms) time-no-wbinvd(ms)
> 104-core (208 LP) Skylake            1437                 28
> 2-core (4 LP) Haswell                 114                  2

Impressive!