45617 - [FEATURE] Mozilla becomes unresponsive while rendering

Status: VERIFIED INVALID

(SeaMonkey :: General, enhancement, P3)

Description

[Taneli Leppä]

When rendering, for example, a page with a big table, Mozilla becomes
unresponsive during the rendering. No toolbar buttons can be pressed, or menus
accessed or other browser windows used. Also the browser windows don't update
properly (other windows draw over them). 

Mozilla/5.0 (X11; U; Linux 2.2.16 i586; en-US; m17) Gecko/20000716

Comment 1

[Andreas Franke (gone)]

Adding perf keyword.

Comment 2

[Andreas Franke (gone)]

See also mostfrequent bug 17325 "Limit number of incremental reflows".

Comment 3

[Taneli Leppä]

Comments on bug 17325 say:
"Ideally (sorry), we'd do more reflows, not fewer, for big complicated tables, 
in order to service UI events more often.  If a big reflow takes too long away 
from the event loop, the UI starves."

It doesn't seem like the proper solution, why block the UI while reflowing? The 
UI should never block - otherwise the user might think the browser crashed.

Comment 4

[Doron Rosenberg (IBM)]

well, all browsers (4.7, ie) do that when takign ups lots of memory, you can't
really do this that easily, if at all.

yes, mozilla does it more than the others, but that is due to memory bugs, this
is not a feature, but is a nessecity. And therefore invalid, as this is
optimisation work

Comment 5

[Rann Bar-On]

makes sense, verifying