[Impeller] first raster performance regresses with UI thread = platform thread.

flutter / flutter

Flutter makes it easy and fast to build beautiful apps for mobile and beyond

https://flutter.dev

BSD 3-Clause "New" or "Revised" License

164.8k stars 27.16k forks source link

[Impeller] first raster performance regresses with UI thread = platform thread. #152977

Closed jonahwilliams closed 2 weeks ago

jonahwilliams commented 1 month ago

See: https://flutter-flutter-perf.skia.org/e/?queries=sub_result%3Dworst_frame_build_time_millis%26sub_result%3Dworst_frame_rasterizer_time_millis%26test%3Dnew_gallery_ios__transition_perf&selected=commit%3D41923%26name%3D%252Carch%253Dintel%252Cbranch%253Dmaster%252Cconfig%253Ddefault%252Cdevice_type%253DiPhone_11%252Cdevice_version%253Dnone%252Chost_type%253Dmac%252Csub_result%253Dworst_frame_build_time_millis%252Ctest%253Dnew_gallery_ios__transition_perf%252C

Though UI time improves. Possibly due to UI getting better affinity/priority. Fix is to make raster task faster.

jonahwilliams commented 1 month ago

Waiting to see if this actually improves first

github-actions[bot] commented 2 days ago

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.