Yeah, it's old. Most basic principles described by Bruce are still valid, though. But if you're looking for fresh info on PostgreSQL tuning, buy this: https://www.packtpub.com/big-data-and-business-intelligence/...

It's not exactly new (it's from 2010, when 9.0 was the current version, and we're waiting for 9.4 to be released soon), but it's much more accurate considering the current hardware.

Interesting, but dated, deep dive. There is also no mention of NUMA, and SSDs certainly must have been rare.