trollitc.com scrolling is janky

RESOLVED WORKSFORME

Status

()

Firefox for Android
Toolbar
RESOLVED WORKSFORME
5 years ago
3 years ago

People

(Reporter: cpeterson, Unassigned)

Tracking

17 Branch
ARM
Android
Points:
---

Firefox Tracking Flags

(firefox14 affected, firefox15 affected, firefox16 affected, firefox17 affected)

Details

(URL)

(Reporter)

Description

5 years ago
STR:
1. Load http://trollitc.com/2012/06/catan-junior-in-review-or-go-out-and-get-this-game-it-rocks/
2. Scroll down the long page

AR:
Scrolling is very janky. Even when slow scrolling, the page will pause for 1/4 second every 1/2 screen or so.

ER:
This long page scrolls more smoothly (but is not perfect) in Chrome and ICS stock browser.
I profiled this page and uploaded the profile to http://people.mozilla.com/~bgirard/cleopatra/?report=e6613622a95d7330da14e5f7a78a268c3c1eebfc - some symbols are missing but it appears that drawing backgrounds and borders is causing the jankiness.
See Also: → bug 780615
(In reply to Kartikaya Gupta (:kats) from comment #1)
> but it appears that drawing backgrounds and borders is causing the jankiness.

Uh, ignore that. With paintflashing turned on, I can see large parts of the page are getting repainted on scrolling, so the large uploads are inducing jank.
No jank or paintflashing on latest nightly on a nexus 4.
Status: NEW → RESOLVED
Last Resolved: 3 years ago
Resolution: --- → WORKSFORME
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