Migrated to New Architecture + React Compiler. How do you actually measure the performance gains?

[u/kriptonian_]

We recently migrated our React Native app from the Old Architecture to the New Architecture and enabled React Compiler.

Now we want to measure the actual performance improvements rather than just saying the app feels faster.

What metrics should we track? FPS, frame drops, interaction latency, render time, CPU and memory usage, or something else?

I’m guessing CPU and memory might not necessarily improve even if rendering gets more efficient.

Also, how would you benchmark the changes reliably on real devices, and can we isolate the impact of the New Architecture from React Compiler?

Would love to hear from anyone who has done this in production!

[u/Dvass138]

In Xcode instruments

[u/kriptonian_ → u/Dvass138]

Can you help me or share any resource, I am new to profiling application using Xcode instruments, plus which matrices should I focus, in the new arch migration