266111 - this page uses twice as much memory in Firefox as in IE

Status: RESOLVED DUPLICATE of bug 542158

(Core :: Layout: Tables, defect)

Description

[fred]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040616
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040616

when opening this URL (large page with lot of images), firefox uses more than
200Mb of memory, whereas IE6 uses less than 100Mb.

Reproducible: Always
Steps to Reproduce:
1. open firefox - note its memory use in the task manager (windows XP)
2. open the URL
3. note the new memory use in task manager

Actual Results:  
less memory left

Expected Results:  
use no more memory than IE for the same URL

Comment 1

[Patrick]

adding perf keyword.

Comment 2

[Boris Zbarsky [:bzbarsky]]

Almost certainly a duplicate.  The page has pretty ugly HTML, and we aim to get
such things "right" more so than "with little memory usage".

Comment 3

[mhonline]

this issue is still a seriuos problem:
memory-consumtion: abt. 80 MB for this page only


Martin




(suite 1.8.0 nightly 05-06-28  on WinNT 4.0 )

Comment 4

[Wayne Mery (:wsmwk)]

>this page uses twice as much memory in Firefox as in IE

actually depending how you measure it - 1.5x (mem-usage) to 3x (virtual mem)*.
*memory
     usage  virt
  IE ~90k   ~87k
  SM ~130k  ~244k

in addition it scrolls like a pig (if a pig could scroll). the later is most noticable when you encounter one of the many .png images.

dup of Bug 226243?
moving to layout

Trunk - Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9a1) Gecko/20051228 SeaMonkey/1.5a

Comment 5

[Bernd]

the URL does not work, please  provide a working url

Comment 6

[Frederic Besnard]

this huge page has since been truncated into smaller ones (with help of wiki). It's still can be found here:
http://web.archive.org/web/20060428001051/http://api.openoffice.org/docs/DevelopersGuide/Spreadsheet/Spreadsheet.htm

Comment 7

[Wayne Mery (:wsmwk)]

Mozilla/5.0 (Windows NT 6.0; rv:2.0b12pre) Gecko/20110214 Firefox/4.0b12pre
IE uses about ~100MB, FF 4 about 400MB, so it's now 4x

Comment 8

[Marco Castelluccio [:marco]]

Still reproducible with Firefox 8.0a2 and IE9. This bug seems strange however, as Firefox uses really too much more memory than IE.

Comment 9

[Nicholas Nethercote [inactive]]

Removing the MemShrink tag because it blocks tracking bug 689769 which also has the MemShrink tag.

Comment 10

[Nathan Froyd [:froydnj]]

The archive.org URL doesn't seem to have the same behavior when viewed in recent Nightly; I see only ~16MB of memory usage from that page (x86-64 Linux).  Did we fix this somewhere along the way?

Comment 11

[Nicholas Nethercote [inactive]]

I can still reproduce this on Mac.  It's very much the images that are the issue.

With a pre-689623 build, images memory consumption is ~250 MiB.

With a post-689623 build, images memory consumption is ~250 MiB just after the page finishes loading.  Then it drops down to just a few MiB after 10--20 seconds, because most of the decoded images are discarded.  If you scroll quickly through the whole page the images jump up to ~250 MiB again, which is reasonable;  it drops down to almost nothing again 10--20 seconds after you stop scrolling.  So, identical behaviour to that in bug 658790 comment 3.