Great article, thanks for posting! Worth noting that swap is also used for tmpfs partitions. Meaning that if you don’t have any swap, temporary files in /tmp will use your actual physical RAM. That’s probably not what you want.

Interesting deep dive and very much worth a read. I’d say it probably underestimates the weight of finance-related pressures coming from the CFO’s office, though.

Correct, AFAIU.

They never took it off. That was an Internet meme. They just never did.