133105 - Major Slowdown when moving a object's style.left etc. and using style.position = "absolute"

Status: RESOLVED WORKSFORME

(Core Graveyard :: GFX, defect, P1)

Description

[michael bystrom]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Macintosh; U; PPC; en-US; rv:0.9.9) Gecko/20020311
BuildID:    

Major slowdown when moving a object's style.left etc. and using style.position =
"absolute". I've set up a test page http://www.michaelbystrom.com/test/ this
will show the diffrence using "absolute" and "relative"

Reproducible: Always
Steps to Reproduce:
1.Look at my test case http://www.michaelbystrom.com/test/
2.
3.

Comment 1

[Olivier Cahagne]

might be dupe of bug 107091.

Comment 2

[Boris Zbarsky [:bzbarsky]]

I suspect this is a compositor problem.

Comment 3

[Markus Hübner]

Is this related to Sam's comment "The mozilla osx port would need use a native 
(asm or compiler) fastram PRLock implementation, not an PRLock that uses 
operating system api lock/unlock."

Comment 4

[michael bystrom]

MAJOR Improvments in 1.1a. 
All my tests and javascript widgets a working much faster now, how about PC
Was this a REAL code fix or was it married to another fix
If so this bug could be closed!!

Comment 5

[Markus Hübner]

Testcase no longer exists :/
Has anyone made a backup somewhere?

Comment 6

[michael bystrom]

Sorry I moved to a new server and lost some stuff!
The test case is now there again

Comment 7

[Chris Petersen]

Reporter,

So has this bug been resolved for you ?

Comment 8

[michael bystrom]

Yes!
It looks like it's been resolved in Mozilla 1.1b

Comment 9

[Markus Hübner]

michael, could you please verify with a recent trunk build - just for 
verification.

Comment 10

[Markus Hübner]

Any Mac people that can test this?

Comment 11

[Jo Hermans]

Verified in build 2003042508 on Mac OS X 10.2.5 : I can't see a difference
between absolute and relative positioning.

(on my 300 MHz iBook, the loop executes in 0.177 seconds btw)