Performance Profiling

概要

Optimizes modern xOS applications by providing structured guidance on using Xcode Instruments to solve lag, memory growth, and battery drain. It helps developers move beyond guessing by offering a performance decision tree to select the right diagnostic tool, whether it's the Time Profiler for CPU spikes, Allocations for memory management, or Core Data SQL debugging for query optimization. By addressing common pitfalls like misinterpreting 'Self Time' versus 'Total Time' and differentiating between caching and leaks, this skill ensures efficient troubleshooting even under intense deadline pressure.

主な機能

• Deep-dive workflows for Time Profiler, Allocations, and Core Data instruments
• 60 GitHub stars
• Decision trees to select the correct diagnostic tool based on app symptoms
• Core Data SQL debugging strategies to identify N+1 query problems
• Techniques to distinguish between intentional caching and genuine memory leaks
• Pressure-tested scenarios to avoid common data misinterpretation mistakes

ユースケース

• Troubleshooting UI lag, scrolling stutters, or slow application startup
• Investigating unexpected memory growth or high battery consumption
• Optimizing slow database queries and data loading operations