tree 20da160422440e6727c8a80cdeb36b062e8109ca
parent 952ef3e0647215edbae15a45fe4cabc4b33ddd69
author Marcin Oczeretko <marcinoc@google.com> 1604658576 +0000
committer Marcin Oczeretko <marcinoc@google.com> 1605007535 +0000

Add trace metric to root cause jank in SysUI CUJs

Detects a few common jank root causes with the following caveats:
* We do not use VSYNC-app counter to determine the start
  of the frame. Instead we assume the frame starts with
  Choreographer#doFrame
* Thresholds for jank causes have to be adjusted
* SQL query runtime seems quite high so it has to be optimized


Bug: 161781469
Test: tools/diff_test_trace_processor.py + manual
Change-Id: I343b46e700babac95535244f797c0f7b04d9dd5c