Juozas Kaziukenas has posted the third part of his series looking at the powerful combination of Zend Framework and the Doctrine ORM layer.

During last two months I spent massive amount of time tweaking Doctrine ORM framework and making it to perform as fast as possible (as you might have noticed from my never ending tweets). This post is devoted to performance and efficiency, with practical tips & tricks how to reduce memory usage, make it work faster and save resources.

He's broken it up into two main parts with points underneath:

• Speed including a look at hydrators, DQL and optimization
• Memory usage and how you can optimize things that seem simple and some recommendations of tools you can use to resolve some of the trouble spots.