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Memcached & Dalli
Memcached is an excellent cache store, and Dalli is the best way to interact with it through Ruby. Here I show various ways to use Memcached in a Rails app including how to set it up in production.
(12 minutes)
Memoization (revised)
Memoization is a convenient way to cache a method's response. Here I show several ways to accomplish this from scratch since the ActiveSupport::Memoizable module has been deprecated.
(9 minutes)
JRuby Basics
JRuby is a polished and stable Ruby implementation. Here I show the basics of setting it up and executing Java from within Ruby. I also see how it compares with MRI at running threads.
(10 minutes)
Trinidad
Trinidad is designed to serve JRuby web applications and gives you the power of Java while still keeping the feel of traditional Rails deployment. Here I show how to setup a Capistrano recipe, configure it, and more.
(15 minutes)
Zero-Downtime Deployment
Here I show how to accomplish zero-downtime deployment using Unicorn. I also cover gotchas when working with migrations and how to put up a maintenance page when you do need to take down the site.
(12 minutes)
Bullet
Bullet will notify you of database queries that can potentially be improved through eager loading or counter cache column. A variety of notification alerts are supported.
(6 minutes)
Thread-Safety
The config.threadsafe! option will likely be enabled by default in Rails 4.0. Here you will learn what this option does, how it affects production, and some tips on thread safety.
(10 minutes)
Client-Side Performance
Optimizing Rails performance can only take you so far. The client-side plays a big part in how fast a page feels. Here I show many tools that can help make your apps faster than ever.
(14 minutes)
Fragment Caching (revised)
If you need to cache a certain section of a page instead of the entire page, fragment caching is the way to go. Learn how caching is stored, how to create auto expiring caches, and more.
(9 minutes)
Dynamic Page Caching (revised)
Page caching is great for speeding up the performance of a page, but what if it contains user-specific content? Learn how to load content in dynamically through JavaScript in this episode.
(7 minutes)