157824 - Scrolling performance is woeful

Status: RESOLVED DUPLICATE of bug 90198

(Core :: Layout, defect)

Description

[Simon Stewart]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020714
BuildID:    

This page uses a lot of CSS, and a background image that does not scroll with
the rest of the page. Vertical scrolling in this page is extremely slow, even
compared with other native Linux browsers (konqueror, for example) Scrolling
this page in IE on Win32 does not exhibit the same problem.

The sidebar was not open at the time that these tests were done. I am marking
this bug as "minor" because Mozilla does the Right Thing, though slowly. The
work-a-round is obviously to be patient.

Reproducible: Always
Steps to Reproduce:
1.Visit http://www.dutchbint.org/
2.Reduce the window's size until a vertical scroll bar is present (though this
is normally not needed because the page is a long one)
3.Attempt to scroll the page

Actual Results:  Scrolling is slow and feels "laggy"

Expected Results:  Smooth scrolling, as with most other pages on the Net

This could form the basis of a good stress test for Mozilla's rendering engine ;)

Comment 1

[jay garcia]

Reproducible at that URL in Windows98SE Mozilla 2002071608

Comment 2

[Vidar Haarr (not reading bugmail)]

Confirmed on WinXP trunk build 2002071608.
Could anybody check this for dups ?

Comment 3

[Vidar Haarr (not reading bugmail)]

This is probably due to the 'background-attachment: fixed;' attribute in
http://www.dutchbint.org/css/simple.css

*** This bug has been marked as a duplicate of 90198 ***