How to monitor hitches, cpu, hangs, allocations all at once without affecting the app performance while using instruments

To monitor hitches, CPU usage, hangs, and allocations all at once without significantly affecting app performance, you can use a combination of tools and techniques available in Xcode and Instruments. Here are some steps and tools you can use:

1. Instruments: This is the primary tool for performance analysis. You can use various templates like Allocations, Time Profiler, and Leaks to monitor different aspects of your app's performance. The Allocations instrument records the history of all allocation and free events over time, which helps in tracking memory usage and potential leaks (Analyze heap memory).

2. Flame Graph: In Xcode 16, the new flame graph feature provides a high-level overview of CPU usage, helping you visualize and analyze performance bottlenecks during app launch or execution (What’s new in Xcode 16).

3. Malloc Stack Logging: This can be enabled in Xcode to track memory allocations and provide backtraces for each allocation, which is useful for identifying memory issues (Analyze heap memory).

4. Thread Performance Checker: This tool surfaces runtime issues related to thread performance, such as main thread hangs and priority inversions, and helps pinpoint the exact line of code causing the issue (What’s new in Xcode 16).

5. Memory Graph Debugger: This tool captures memory graphs, which are snapshots of all allocations and references, helping you focus on specific allocations and understand memory growth patterns (Analyze heap memory).

By using these tools, you can effectively monitor and diagnose performance issues in your app without significantly impacting its performance.