[acqq]

> See e.g. false-sharing.

It's also an effect of a badly written software, not something that is constantly present in the CPU execution. You based the claim to which I've replied on "sharing is illusory", "if two threads" and "the CPU deals with it" like it's necessary to happen all the time in the CPU as soon as the threads exist and they access the same data.

> when you go to scale of several thousands cores in a geographically distributed system.

There you are not describing "a CPU" (as in, the thing that's in the CPU slot of the motherboard) which is all I discussed, and I'm not interested in changing the topic.