How to use Heroku CI Parallel to save time. Heroku CI quick start: Heroku CI Parallel Test Runs Beta: How to split tests in a dynamic way across parallel CI nodes with knapsack_pro Queue Mode and how it works: Learn more about optimal test suite parallelisation:
Learn how to continually measure and optimize the performance and availability of your Java, .NET and Ruby on Rails applications. Understand how you can quickly locate and rectify common performance issues such as CPU spike, memory leaks, slow database calls, etc.
In this video Alessandro Rodi shows how to use Hot Module Reloading in Rails to speed up our frontend development process.