Do We Really Need Actors in Swift Concurrency?
summary
The talk examines Swift Concurrency features introduced in Swift 5.5—Task, async/await, and actors—focusing on why actors were added and how they fit into the concurrency model. It reviews historical reasons and problems with GCD, explains what an actor is, how to use actors in Swift, and which concurrency problems actors are intended to solve.
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chapters (13)
- 0:00Introduction
- 1:48What is Swift Concurrency
- 2:30Moore's Law and threading
- 7:49GCD and thread issues
- 13:08Actors in Swift
- 15:23How actors work
- 18:34Actor usage tips
- 25:14Swift Concurrency executors
- 28:49Global actors
- 31:20Context inheritance in Swift 6
- 33:49Future of actors and Swift 6
- 34:50Do we really need actors
- 35:52Q&A
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