Gareth Emery Reporter
	Description • 23 years ago

DIV elements that have a scroll bar are very sluggish when scrolled. The Windows
version of Mozilla does not have this problem. The only reason I mention this is
that we're shipping a web app that's going to run on both Windows and Linux
platforms, and the Linux users are a bit miffed...

	David Baron :dbaron:
	Comment 1 • 23 years ago

Who owns performance issues with the GTK widget port?

	David Baron :dbaron:
	Comment 2 • 23 years ago

well, anyway, ->widgets

	Dan Rosen
	Comment 3 • 23 years ago

christ, that's probably me...

	Dan Rosen
	Comment 4 • 23 years ago

Don't think this is a dup. This is probably yet another "abusing X" issue, so
marking as a blocker of bug 83395... OTOH we might just be doing something
stupid with native widgets.

	John Morrison
	Comment 5 • 23 years ago

May God have mercy on us all. The 212 bug spam-o-rama is Now!

	Dan Rosen
	Comment 6 • 23 years ago

[spam] dr@netscape.com's bugs subject to redistribution by chofmann. R!

	Peter Maydell
	Comment 8 • 23 years ago

I ran xmon on mozilla 0.9.6 to see what it was doing when pointed at the page
given as an attachment. Judging by the trace of X events, if you enter a single
keystroke into the 'notes' box it does a complete redraw of the page twice!

If you enter a bunch of text into the notes field, and then scroll down a bit so
we can scroll up, then the single mouse click on the scroll bar up arrow causes
the entire page to be redrawn no less than four times.

(I'm basing 'redraws whole page N times' on how many times we issue the
PolyText8 request to draw the big "Maintain Episode" string at the top of the page.)

I can provide complete xmon logs if you want, but they're 10MB long...
If there's any interest I can look again with a newer mozilla.

	Gareth
	Comment 9 • 23 years ago

The scrolling speed seems much better in build 2002012121 but it's still almost
unusable if you try and type anything in the notes field. 

	bugs
	Comment 10 • 23 years ago

Scrolling this URL ( http://pixel.recoil.org/ ) is awfully slow (on a
Celeron@850), and causes Xfree86 and Moz use almost all of the CPU (~50% and
~30% according to top). 

Build id: 2002031008 (0.9.9), Linux

(Got here from bug 135491)

	Wayne Mery (:wsmwk)
	Comment 11 • 14 years ago

linux retest needed - still slow?

Gareth address is dead (I think). and 135491 is fixed

	Marco Castelluccio [:marco]
	Comment 12 • 13 years ago

The address is dead, but I normally haven't problems in scrolling under Linux.
I think this bug can be closed.

	Wayne Mery (:wsmwk)
	Comment 13 • 13 years ago

(In reply to comment #12)
> I normally haven't problems in scrolling under Linux.

can you try the testcase?

	Marco Castelluccio [:marco]
	Comment 14 • 13 years ago

Yes, I've tried the test in the attachment and the scroll isn't slow.

	Wayne Mery (:wsmwk)
	Comment 15 • 13 years ago

Thanks