
This relands https://github.com/flutter/flutter/pull/35297 The followings have been done to fix the broken tests: 1. Add `didSendFirstFrameRasterizedEvent` extension and its tests 2. Wait for `didSendFirstFrameRasterizedEvent` instead of `didSendFirstFrameEvent` during start up tests 3. Mark missed (probably newly added) start up tests as flaky
complex_layout
Scrolling benchmark
To run the scrolling benchmark on a device:
flutter drive --profile test_driver/scroll_perf.dart
Results should be in the file build/complex_layout_scroll_perf.timeline_summary.json
.
More detailed logs should be in build/complex_layout_scroll_perf.timeline.json
.
Startup benchmark
To measure startup time on a device:
flutter run --profile --trace-startup
Results should be in the logs.
Additional results should be in the file build/start_up_info.json
.