Drupal Memory Performance

Drupal has been known to be quite resource intensive, but I'm happy to hear about the improvements that are being made for Drupal 8. I just wanted to share this interesting post I found on Drupal and the PHP Memory Limit:

Why does Drupal need so much memory? Among other things, because it has a cache problem (which of course saves your database) Drupal currently likes to cache ALL views in one place, ALL fields in one place, etc. So once you get a site with many content types, fields, views, the caches become huge, and they are all loaded into your memory with each request.... [read more]