Twice the cores leads me to think we're getting ecores
The key point is that the cores are otherwise the same so you don't have the weird intel situation where the e-cores don't support the same instructions as the p-cores.
Intel didn’t have this problem. They simply disabled instructions available on P and not on E. They did face the scheduling issues inherent in heterogenous systems. But so will AMD.
I read somewhere that part of what makes the iOS experience better is tight control over how much CPU background jobs can steal.
systemctl set-property system.slice AllowedCPUs=16-19
Not the friendliest mechanism for defining what runs on what but it's what I use to make sure that server software I really want on the P cores stays on the P cores.
> We don't know yet what types of cores these new Zen 5 core clusters will have. Half of Zen 5's core count could be dedicated entirely to Zen 5c efficiency cores, or the entire stack could be vanilla Zen 5 performance cores. It could be a mix of both since AMD's slides suggest that there will be different models featuring FP-512 support and some models with low-power cores.