
This attempts to reland https://github.com/flutter/flutter/pull/126848 This was reverted because it made some unexpected changes to our perf measurements. After landing https://github.com/flutter/flutter/pull/127900, we have much less noise in our benchmarks, so I'd like to reland this and see if there is still a significant measurement difference.
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
The results should be in the logs.
Additional results should be in the file build/start_up_info.json
.