Profiling with the SwiftUI Instrument
Find redraw hotspots with Instruments.
Why Profile?
Performance work without measurement is guesswork. The SwiftUI Instrument in Instruments shows exactly which views update and how often.
Opening the Instrument
In Xcode, choose Product > Profile (or Command-I) to launch Instruments, then pick the SwiftUI template. Run your app and exercise the slow screen.
All lessons in this course
- Understanding View Identity
- Minimizing Body Re-evaluation
- Equatable Views and @State Scope
- Profiling with the SwiftUI Instrument