# Baseline profiles The baseline profile for this app is located at [`app/src/main/baseline-prof.txt`](../app/src/main/baseline-prof.txt). It contains rules that enable AOT compilation of the critical user path taken during app launch. For more information on baseline profiles, read [this document](https://developer.android.com/studio/profile/baselineprofiles). > Note: The baseline profile needs to be re-generated for release builds that touch code which changes app startup. To generate the baseline profile, select the `devBenchmark` build variant and run the `BaselineProfileGenerator` benchmark test on an AOSP Android Emulator. Then copy the resulting baseline profile from the emulator to [`app/src/main/baseline-prof.txt`](../app/src/main/baseline-prof.txt).