static.davidchouinard.com/congress janks Firefox main thread in argb32_image_mark_argb32()

NEW
Unassigned

Status

()

5 years ago
5 years ago

People

(Reporter: cpeterson, Unassigned)

Tracking

Trunk
x86
Mac OS X
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

(URL)

(Reporter)

Description

5 years ago
STR:
1. Load http://static.davidchouinard.com/congress/
2. Try to interact with the animation or the browser UI.

RESULT:
Firefox janks. The UI responds a little bit about every 10 seconds.

The Gecko profiler says the main thread spends about 60% of its time in argb32_image_mark_argb32(). I'm running OS X 10.9 on a Retina MacBook Pro.

http://people.mozilla.org/~bgirard/cleopatra/#report=8da903867d536427935fbe1c5e6361f5ed26c3aa
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