53594 - typing in bugzilla form slow, but typing not slow elsewhere

Status: VERIFIED DUPLICATE of bug 51392

(Core :: Layout: Form Controls, defect, P1)

Description

[buster]

Running on WinNT, build id 2000092108 commercial build (and debug build).
There's been a major performance regression in typing speed in HTML forms.
by comparison, on the same machine with the same build, typing in the editor is
very fast, as is typing into text fields in the chrome (like the URL bar.)  This
seems limited to HTML text controls.  We need a quantify profile to see what's
going on.

Comment 1

[Simon Fraser [no longer active]]

Buster: we know about this. The Enter-bug page has text fields in a table, and 
the entire table reflows every time you hit a key. Dude, you need to run with 
double buffering turned off -- #define at the top of nsViewManager2.cpp.

Comment 2

[buster]

thanks simon, will do.
I'll take this bug for now, and see if there's anything I can do on the layout 
side of things.  

Chris, is this a dup of a bug you already have about not invalidating lines so 
eagerly, or is this a separate issue?

Comment 3

[buster]

Turns out this is the evil "over-eager table-invalidation
when-incremental-reflow-occurs-in-a-colspan-cell bug."
Karnaze already has a fix for this that I've tested.  Yeah, Chris!


*** This bug has been marked as a duplicate of 51392 ***

Comment 4

[bsharma]

Updating QA contact.

Comment 5

[Scott Brodmerkle]

Verified dupe.