[the8472]

> slow storage

Linux recently gained the ability to swap huge pages to NVMe without having to split them. Combined with THP this can be quite fast.

[eikenberry]

How recent? Did this happen back in the 4.x series or is it new to the 5.x series?

[the8472]

4.14 contains some of the changes I read about. But the patch notes are different than what I originally read, I'm not sure whether this is the full feature or whether some of it stalled.