308572 - memory leaks in 1.5 b1

Status: RESOLVED DUPLICATE of bug 174604

(Firefox :: Tabbed Browser, defect)

Description

[the.oldgoat]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b4) Gecko/20050908 Firefox/1.4
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b4) Gecko/20050908 Firefox/1.4

When I start FF 1.5b1 up, it takes about 30Mb of memory. This slowly creeps up,
until no matter how many tabs/windows I close of FF it keeps the accumulated
memory - was 90Mb a little while ago.

Running a memory cleaning utility instantly drops the FF memory used to its
origianl level  

Reproducible: Always

Steps to Reproduce:
1. open FF
2. use for an hour or so (or just have open)
3. monitor the memory via taskman

Actual Results:  
the FF memory repored in taskman

Expected Results:  
release memory back when tab(s) are closed.

Comment 1

[Ryan Flint [:rflint] (ping via IRC for reviews)]

*** This bug has been marked as a duplicate of 174604 ***

Comment 2

[Jo Hermans]

(In reply to comment #0)
> Running a memory cleaning utility instantly drops the FF memory used to its
> origianl level  

Not really. They just shrink your working set, but that isn't permanent. You're
looking at the wrong column in Task Manager (the real memory is in a hidden column).

Comment 3

[the.oldgoat]

which is the right column?
As an example, I've got 1 FF window, minimised , no tabs:
mem usage = 66mb, peak MU = 177Mb, VM = 80mb
is there an alternative to taskman that shows the memory accurately?