View: 
Categories
- Active Record
- Active Resource
- Active Support
- Administration
- Ajax
- APIs
- Authentication
- Authorization
- Background Jobs
- Caching
- Code Walkthrough
- Controllers
- Debugging
- Deployment
- eCommerce
- Forms
- Mailing
- Models
- Performance
- Plugins
- Production
- Rack
- Rails 2.0
- Rails 2.1
- Rails 2.2
- Rails 2.3
- Rails 3.0
- Rails 3.1
- Rails 3.2
- Rails 4.0
- Refactoring
- Routing
- Search
- Security
- Testing
- Tools
- Views
Performance Testing
Learn how to add performance tests that automate benchmark and profile reports. Here I show how to find the bottlenecks to optimize a page. I also show how to compile Ruby with gcdata to get information about memory usage.
(16 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)
Eager Loading (revised)
One way to improve performance is to reduce the number of database queries through eager loading. Here I demonstrate this and compare the difference between the "includes" and "joins" methods.
(7 minutes)
Autocomplete Search Terms
Learn how to add autocompletion to a search form and improve performance using Rack middleware, caching and switching from SQL to Redis.
(17 minutes)
MiniProfiler
MiniProfiler allows you to see the speed of a request conveniently on the page. It also shows the SQL queries performed and allows you to profile a specific block of code.
(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)
Rails Metal
Rails Metal is a way to bypass the standard Rails request process for a performance boost. In this episode you will learn how to shave off a few milliseconds using Metal.
(9 minutes)
Request Profiling
You can use profiling to determine where the performance bottlenecks are in specific Rails actions. Watch this episode for details.
(10 minutes)
Analyzing the Production Log
In order to improve performance of your Rails application you need to find the bottlenecks. A great starting point is your production log. In this episode you will see how to use RAWK to analyze your log file and determine which controller actions take up the most processing time.
(5 minutes)
Counter Cache Column
If you need to display the record count for a has_many association, you can improve performance by caching that number in a column.
(7 minutes)