Comment by dwattttt

Yes. However the number of times I've scheduled millions of concurrent tasks is 0; hence my question about subjective experience.

I would guess that how well integrated OS threads or green threads are into a language has a much stronger impact on experience & quality.

EDIT: you're also comparing hyper threading itself to the green thread scheduler (M green threads vs 2 logical cores), that doesn't make any sense. You probably want to compare to the OS's scheduler. It will schedule those millions of threads over all the hardware concurrency available too.