How can performance degradation inside a Composable function be detected?

To detect performance degradation within a Composable function in Jetpack Compose, several approaches can be used:

• Profiling with Android Studio Profiler — allows measuring execution time, CPU, and memory usage during app operation.

• Using Layout Inspector with Compose mode — helps visualize and analyze the composition and re-composition of Composable.

• Logging and debugging with trace and Debug API in Compose — you can wrap suspicious code sections in trace to measure time.

• Using Modifier.onGloballyPositioned and Modifier.drawWithContent for rendering analysis.

• Optimization with remember, derivedStateOf, and LaunchedEffect — to avoid unnecessary recompositions.

Example of using trace to measure time:

import androidx.compose.runtime.trace

@Composable
fun MyComposable() {
    trace("MyComposable render") {
        // Composable code
    }
}

Thus, combining profiling tools and built-in Compose features helps identify bottlenecks and reduce load.