Learn all about Performance with these posts

Optimize your Swift code for better performance.

How to profile your app's performance and Main Thread usage with Instruments and os_signposts

Learn how to use Instruments to understand the root cause of app hangs and high Main Thread usage and identify areas where you can optimize your app's performance.

Master the reduce operator in Swift and make your code more performant

Learn all about Sequence's reduce operator in Swift through a series of real-world examples.