Memory stall means re-fetching an evicted or not-yet-faulted-in page from disk, ...

gpderetta · on July 4, 2023

I would say that the article is really talking about cache misses, not page faults.

anonymoushn · on July 4, 2023

This is not what it means. Maybe you're thinking of page faults, which happen for this reason among other reasons.

kazinator · on July 4, 2023

A page fault stall is visible to tools like top. A task waiting for a page to be faulted in so that it can continue is descheduled, and so 0% CPU. So I don't think that's what the article is talking about.