Watchdog
A Swift class that logs excessive blocking on the main thread to help identify performance issues in iOS/macOS/tvOS apps.
What is Watchdog?
Watchdog is a Swift library that monitors the main thread in iOS, macOS, and tvOS applications to detect and log excessive blocking that can cause UI stuttering. It helps developers identify performance bottlenecks by alerting when the main thread is blocked longer than a defined threshold, and can optionally halt execution for debugging.
iOS, macOS, and tvOS developers who need to ensure smooth UI performance and debug main thread blocking issues in their Swift applications.
Developers choose Watchdog for its simplicity and effectiveness in catching main thread blocks without overhead, offering configurable thresholds and a strict mode for immediate debugging, unlike manual instrumentation.
Overview
Class for logging excessive blocking on the main thread
Use Cases
Best For
- Debugging UI stuttering in iOS apps
- Identifying performance bottlenecks in Swift applications
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