SkiaPerf has detected a performance regression in rater times on the Engine roll here: #96980

A commit related to the benchmark appears to be flutter/engine#30264.

https://flutter-flutter-perf.skia.org/e/?begin=1642722918&end=1642789127&keys=X7a5f4d5efc625314dab01a9ed5ff3015&num_commits=50&request_type=1&xbaroffset=27242

/cc @WasserEsser @blasten @cyanglaz