[warrenm]

>I have 30k servers and not a single one of them has swap.

Physical? VM? Cloud?

I've never seen an environment with more than a couple carefully-tuned machines that didn't run swap on every last one

[LinuxBender]

30k physical servers. 512GB to 1TB ram each.

[warrenm]

>30k physical servers. 512GB to 1TB ram each.

You running an AWS data center?

[LinuxBender]

Not a public cloud. It does involve some private cloud visualization and containers.