610372 - Beta 7 (Build 1) gobbles an unusual amount of RAM

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[Jacob]

User-Agent:       Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b7) Gecko/20100101 Firefox/4.0b7
Build Identifier: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b7) Gecko/20100101 Firefox/4.0b7

I've been trying out Build 1 of Beta 7, and on average it uses about 50% more RAM than Beta 6 under the same circumstances. This seems to be an unusually large gain.

Reproducible: Always

Steps to Reproduce:
1. Open Firefox.
2. Load some tabs.
3. Watch memory usage surge sky-high.
Actual Results:  
RAM gone.

Expected Results:  
Same, or less, memory usage as Beta 6.

Comment 1

[Matthias Versen [:Matti]]

"Using more Ram" or "using more CPU" with loading some unknown URLS isn't useful as report.

- Test in the Firefox safemode http://support.mozilla.com/en-US/kb/Safe+Mode as start.
- include the used URLs
- number, we need numbers like FF4.0b6 uses 150MB while FF4.0b7 uses 500mb

Comment 2

[Jacob]

Sorry. I'll run proper tests when I get a chance. I'm just a bit flustered by the sudden spike in resource usage.

To be a little more specific, most of the tabs open were from the forum at http://www.neogaf.com/forum/ and average memory usage went from the 600-800 MB range (Beta 6) to the 900-1200 MB range (Beta 7).

Comment 3

[Marco Castelluccio [:marco]]

Reporter, do you still see issues with the newer versions of Firefox?