Performance Metrics
Key metrics include app startup time, frame rate (60fps target), memory usage, network latency, and battery consumption. Set performance budgets and monitor them.
Startup Optimization
Defer non-critical initialization. Use lazy loading. Minimize work on the main thread during launch. Aim for under 1 second cold start.
UI Performance
Avoid complex layouts. Use view recycling in lists. Minimize overdraw. Profile with Instruments (iOS) or Android Profiler.
Memory Management
Avoid memory leaks. Use weak references appropriately. Respond to memory warnings. Cache strategically.
Network Optimization
Minimize request count. Use compression. Cache responses. Implement proper retry logic with exponential backoff.
Battery Efficiency
Minimize background work. Use efficient location tracking. Batch network requests. Avoid excessive wake-ups.
Profiling Tools
Use Xcode Instruments, Android Profiler, Firebase Performance Monitoring, and third-party tools like Bugsnag Performance.