19199 - pulldown menus is extremely slow

Status: VERIFIED FIXED

(Core :: XUL, defect, P3)

Description

[jim_nance]

I observed the following problem using a Nov 17 9:00 PM EDT pull.  It had
Chris'es new gtk code in it, so I suspect that is what is causing this.

The problem is that the pulldown menus under the title bar are very slow.  You
dont notice it if you just pull down 1 menu, but if you pull a menu down and
then slide the mouse horizontally across several menu headings so that they
all get dropped it becomes quite apparent.

This was with Red Hat 6.1/x86 , gtk 1.2.6, & libIDL from Orbit-0.5.

Comment 1

[Christopher Blizzard (:blizzard)]

There were some rendering problems with menus right after the landing.  Should
be a lot better now.

Comment 2

[jim_nance]

I just tried it and its not fixed.  Just to be clear, this is not the problem
with the scroll bars being slow.  That IS much better than it used to be.

This problem is with the pulldown menus in the titlebar.  To see the problem
it is helpful to compare with communicator 4.7.  Bring up the browser and
depress the mouse button on top of the File menu.  Now, keeping the button
depressed, slide the pointer over to the Edit menu and then on through Go and
Communicator.  Even if you do this very quickly, communicator can keep up with
what you are doing.

Now try this with Mozilla.  I would guess its about 100X slower.  We probably
do not need to be as fast as communicator, but it would be nice to be
significantly faster than we are now.

Comment 3

[leger]

Clearing FIXED resolution due to reopen.

Comment 4

[Peter Trudelle]

changing component to xptoolkit menus.  Blizzard, do you still think this is a 
significant problem for users?  Do you still have time for it, or should we take 
it?

Comment 5

[Christopher Blizzard (:blizzard)]

I think menus are pretty good.  It's related to the fact that rendering on Linux
is slow in general.  It doesn't need a seperate bug.  I'm not going to spend any
time on it any more than the other rendering problems.

Comment 6

[jim_nance]

Linux rendering seems to be much improved (scrolling is much faster).  The

pulldown menus are still slow.

Comment 7

[janne hayrynen]

while the top pulldown menus on ns4.x are near-instant even on my p90, on
mozilla they are almost unbearable.. and now testing the opening of the pulldown
menus on athlon600, sliding mouse over the menubar button depressed, it's still
sluggish, very noticeably so.. unacceptable.

Comment 8

[mrs30]

> I think menus are pretty good.
> It's related to the fact that rendering
> on Linux is slow in general.

General rendering doesn't seem as bad as the menus...

> It doesn't need a seperate bug.  I'm not going
> to spend any time on it any more than the other rendering problems.

Why on EARTH has this simple thing not been resolved before?  I cannot believe
that people can think that this is acceptable performance.

Elementary things such as this should be sorted out before all the fancy
features Mozilla has.  For goodness' sake, even opening menus on the latest
build causes half the menu to disappear and the "location" text box to appear in
front of the menu.

Comment 9

[Stuart Parmenter]

I know what is going on here.  I will look at this later.

Comment 10

[Christopher Blizzard (:blizzard)]

Ok, what is going on here then?  Share and someone else might fix it.  Open
source is a beautiful thing.

Comment 11

[leger]

Updating QA Contact.

Comment 12

[Christopher Blizzard (:blizzard)]

Pav seems to think he knows what's going on.  It's his bug now.

Comment 13

[jim_nance]

Pavlov, I tried running mozilla w/o a windown manager.  The pulldown menus are

still slow, so the

slowness is not due entirly to window manager interactions.

Comment 14

[Peter Trudelle]

Mass-moving all M16 non-feature bugs to M17, which we still consider to be 
part of beta2

Comment 15

[Peter Trudelle]

m18

Comment 16

[Stuart Parmenter]

they are pretty damn fast now.  if anyone disagrees, please reopen.

Comment 17

[sairuh (rarely reading bugmail)]

yeah, they seem pretty zippy to me. verif on linux [opt comm] 2000.05.18.08.

Comment 18

[janne hayrynen]

what the hell.... :P
i just noticed something weird. i have 2 linux machines lan, not connected to
internet, no apps running over the network, network monitor shows absolutely no
traffic between the two machines. now i start up mozilla, press mousebutton on
the menubar and slide mouse horizontally across the menus, and the network meter
gives 5kbytes/s traffic on the lan. traffic stops when i stop fiddling with the
menus.
whaaaaat is going on here?? :P huh?!