This package enable profiling your Dart applications and currently supports two backends:

• Web Tracing Framework
• Dart Observatory

Add the tracing package as a dependencie to your pubspec.yaml

Use the tracing API to profile your application.

The Observatory backend is enabled by default and in order to enable the WTF backend, the client code must call detectWTF() with the js context as a parameter:

import 'dart:js' show context;
import 'package:tracing/tracing.dart';

void main() {
    // Switch to the WTF backend when available
    detectWTF(context);

    // ... your application code to be profiled
}