Re: [PATCH v2 2/3] x86, sched: Bail out of frequency invariance if turbo frequency is unknown

[Ricardo Neri]

On Sun, May 31, 2020 at 08:24:52PM +0200, Giovanni Gherdovich wrote:
> There may be CPUs that support turbo boost but don't declare any turbo
> ratio, i.e. their MSR_TURBO_RATIO_LIMIT is all zeroes. In that condition
> scale-invariant calculations can't be performed.
> 
> Signed-off-by: Giovanni Gherdovich <ggherdovich@xxxxxxx>
> Suggested-by: Ricardo Neri <ricardo.neri-calderon@xxxxxxxxxxxxxxx>

FWIW,

Tested-by: Ricardo Neri <ricardo.neri-calderon@xxxxxxxxxxxxxxx>