CPU/GPU usage (a good approximation for energy use)
    
      The usage is currently only available through trace events. See
profiling_summarizer.dart.
      See metrics for the simple_animation_perf_ios test.

release_size_bytes to approximately measure the size of a Flutter app
    
      See the basic_material_app_android, basic_material_app_ios,
hello_world_android, hello_world_ios, flutter_gallery_android,
and flutter_gallery_ios tests.
      See metrics in the dashboard.
      For info on how to measure the size more accurately,
see the app size page.

For a complete list of performance metrics Flutter measures per commit, visit 
the following sites, click Query, and filter the test and 
sub_result fields:

https://flutter-flutter-perf.skia.org/e/

https://flutter-engine-perf.skia.org/e/