497506 - Massive memory and cpu hit

Status: RESOLVED INVALID

(Firefox :: General, defect)

Description

[Joe]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1b99) Gecko/20090605 Firefox/3.5b99 GTB5
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1b99) Gecko/20090605 Firefox/3.5b99 GTB5

While Scrolling down the page "http://lifehacker.com/tag/feature/" firefox appeared to hit a snag and slowed down my computer immensely.  I looked in task manager and the memory useage spiked to over 500M for about 1 minute using over 30% cpu.  

It eventually released alot - (currently at 106M with only 3 tabs open - iGoogle, Above link and this page.)

Reproducible: Didn't try




Using standard theme:
about:buildconfig

Source

Built from http://hg.mozilla.org/releases/mozilla-1.9.1/rev/3f775c3bb24a
Build platform
target
i686-pc-mingw32

Build tools
Compiler 	Version 	Compiler flags
cl 	14.00.50727.762 	-TC -nologo -W3 -Gy -Fdgenerated.pdb -DNDEBUG -DTRIMMED -Zi -UDEBUG -DNDEBUG -GL -wd4624 -wd4952 -O1
cl 	14.00.50727.762 	-GR- -TP -nologo -Zc:wchar_t- -W3 -Gy -Fdgenerated.pdb -DNDEBUG -DTRIMMED -Zi -UDEBUG -DNDEBUG -GL -wd4624 -wd4952 -O1

Configure arguments
--enable-application=browser --enable-update-channel=beta --enable-update-packaging --enable-jemalloc --enable-official-branding

Comment 1

[Wayne Mery (:wsmwk)]

I wouldn't say there's a bug here.  There's a crapload of stuff being loaded here, to put it politely. Once all the images are loaded and such, there is no cpu load, and memory has gone back to "normal".

So I think this is invalid (i.e. not a bug)

Comment 2

[Wayne Mery (:wsmwk)]

iirc the memory goes way up and then goes way back down. not unusual for graphics intensive pages