Re: performance anomaly in rep movsq/movsb as seen on Sapphire Rapids executing sync_regs()

[Dave Hansen]

On 11/27/25 01:58, david laight wrote:
> I wonder if Sapphire Rapids has some similar perversion?
> Or, is that one of the big/little cpu where most of the cpu are
> actually atom ones - which may not have either ERMS or FSRM ?

No, if it's really Sapphire Rapids, then the CPUs are homogeneous.