Open Bug 1387904 Opened 9 years ago Updated 3 years ago

constant layout/restyle on twitter for no painting, maybe servo related

Categories

(Core :: Layout, enhancement, P3)

Product:
Core
Component:
Layout
Type:
enhancement

Tracking

()

People

(Reporter: bkelly, Unassigned)

Details

Today on my mac I noticed that leaving my twitter tab focused caused my macbook to spin a core. I took a profile and there is no js running AFAICT: https://perfht.ml/2vcvPe7 Instead it seems we are constantly doing some kind of layour or restyle on every vsync tick. I turned on paint flashing and nothing seemed to be getting painted. Maybe something off screen? Note, I do seem to be opted in to the stylo experiment on nightly. I'm not sure if that could be causing this or not. I tried flipping the servo pref and reloading the page, but I could not reproduce the problem regardless of the value. Not sure what changed. Anyway, maybe something can be determined from the profile above.
Priority: -- → P3
Severity: normal → S3
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