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JRuby is a 100% pure-Java implementation of Ruby with high performance, real threading, and a vast array of libraries. Chris McCann explores how JRuby can provide real value for Rails developers. Bonus content: download the slides from this talk.

Emanuele Tozzato gives a brief introduction to Redis, then demonstrates real-life database performance optimization with redis-object and how to manage background jobs using Resque. Bonus content: download the slides from this talk.

Nick Zadrozny takes us on a tour of basic website performance optimization, covering 13 optimizations you shouldn't deploy your site without. He'll also go over some sample implementations for a typical Rails app, including a demo of how to serve your public assets from Amazon's new CloudFront CDN.