1088909 - Firefox scrolling is really slow while displaying SVG

Status: RESOLVED WORKSFORME

(Core :: SVG, defect)

Description

[inscription]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:36.0) Gecko/20100101 Firefox/36.0
Build ID: 20141024080300

Steps to reproduce:

Firefox Nightly 64 bits on linux Mint 17, e10S disabled.
go on http://kartograph.org/showcase/italia/


Actual results:

The loading of the map is slow, but even worst : when the map is properly displayed the scrolling is really slow. Moreover, the animations on the map are really jerky.


Expected results:

When the map is fully rendered, the scrolling and the animations on it should be smooth.

It's not the first time I noticed performances issues on FF when it comes to SVG, that's why I decided to fill this bug

Comment 1

[Jean Claveau]

Attachment: slow_svg_profile.json

I have the same result on this article : http://www.lemonde.fr/politique/article/2015/03/24/departementales-l-alliance-front-de-gauche-europe-ecologie-les-verts-a-t-elle-fonctionne_4599573_823448.html

Scrolling is only slow when the svg map is visible.

The attached file is a profile recorded during scroll.

Comment 2

[Robert Longson [:longsonr]]

Best if you create your own bug Jean. Your example is slow on Mac whereas the comment 0 testcase is not.

Comment 3

[inscription]

Maybe I should mark this bug as resolved, because this test case is running way better nowadays (maybe not completely smoothly, but at least it doesn't look really buggy anymore). What do you think Robert ?

Comment 4

[Robert Longson [:longsonr]]

As you raised it, it's up to you, feel free to close it as WORKSFORME if you wish.

Comment 5

[Wayne Mery (:wsmwk)]

WFM per comment 3