It really doesn't. When the author article writes about swap helping "Under moderate/high memory contention" -- most people have already powercycled their devic

It really doesn't. When the author article writes about swap helping "Under moderate/high memory contention" -- most people have already powercycled their device at this point (or monitoring has pulled the struggling node from production). It's utterly useless, due to the huge difference in latency between RAM and storage. On most production systems, memory allocation is roughly 1% system and 99% application (not counting temporary, evictable allocations like disk cache). Modern applications are not designed to have their pages swapped out to disk and it is not particularly helpful to swap the teeny tiny bits of OS. There are parts of this article which are true, but the overall picture it paints is not accurate and the conclusion that swap is helpful is not correct for high performance systems - both workstations and servers.