MotionMark focus test can cause extreme variance in whichever test runs directly after it
Created attachment 418608 [details] Patch
*** Bug 220847 has been marked as a duplicate of this bug. ***
<rdar://problem/72143661>
Comment on attachment 418608 [details] Patch Should we add an option in the developer.html page to inject a long frame at the beginning pf the test as away to verify this change?
Committed r272044: <https://trac.webkit.org/changeset/272044>