Wordpress is its own beast with horizontal scaling too. It's quite difficult to run a load balanced ep instance simply because it was never designed for that. W

Wordpress is its own beast with horizontal scaling too. It's quite difficult to run a load balanced ep instance simply because it was never designed for that. We used to runs ton of wp sites at my last place, and if the cache wasn't enough the usual course of action was to throw it on a server/database combo that was practically a supercomputer. PHP takes up way too much RAM per thread and it's just slow and terrible to work with on popular sites :(