Rails Performance Optimization

Been doing some research and I found some good articles for Rails performance optimization. For those interested in such things, I thought I'd share:

• Good set of slides (once you get past some early slides) with some tips focused on different aspects of the stack: http://www.scribd.com/doc/15336193/Advanced-Performance-Optimization-of-Rails-Applications


• A short list of optimization tips (which look to have been learned the hard way): http://garrickvanburen.com/archive/optimization-tips-ruby-on-rails-and-mysql


• A not so short list of optimization tips: http://blog.pluron.com/2008/01/guerrillas-way.html


• A bit of a high-level article, but I found the three design tips insightful: http://blogs.zdnet.com/enterprisealley/?p=188


• And in general, I really liked the content linked on this site for resource on rails performance tuning: http://www.buildingwebapps.com/topic/5197-performance-tuning-for-ruby-on-rails

Enjoy. And please, share some other links if you have em.