Use the ProfilerA window that helps you to optimize your game. It shows how much time is spent in the various areas of your game. For example, it can report the percentage of time spent rendering, animating, or in your game logic. More info
See in Glossary to collect performance data about your application. You can collect performance data while in Play mode in the Unity Editor. However, to get the most accurate data about your application, you can connect the Profiler directly to an iOS device that’s on your network.
If you’re using a firewall, open ports 54998 to 55511 in your firewall’s outbound rules. These are the ports Unity uses for remote profiling.
To enable remote profiling, follow these steps:
After you open the Profiler window, it populates with data from your application. If the Editor doesn’t connect to the device automatically, select the Target Selection dropdown menu in the Profiler window and choose the appropriate device to start the Profiler connection manually.
You can also plug the target device directly into your computer to avoid network or connection issues.