196055 - mozilla performance degrades over time while browser is open

Status: RESOLVED DUPLICATE of bug 76831

(SeaMonkey :: General, defect)

Description

[john seely]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3b) Gecko/20030207
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3b) Gecko/20030207

my morning routine is to hit /., g00glenews, and a few other pages (luv tabbed
homepages) to see what stories are out there that i'm interested in reading.  i
generally open up a number of stories in multiple tabs, and then minimize the
browser and read the stories over time through my day. 

since upgrading to a nightly build of 1.3 (wanted to try spam filters) i have
noticed that the longer mozilla is open, the slower it responds over time.  for
instance, when i initially open the browser (reguardless of # of tabs)
performance is quite good and snappy for minimize/restore, changing between
tabs, etc.

as the day progresses however, the browser becomes sluggish quite quickly.  if
my browser is open for more than 3-4 hours, a restore from a minimize can take
over 10-15 seconds to complete.  

also, when the browser has been open for a couple of hours, and then i close it,
i have noticed a very large increase in the amount of time it takes mozilla to
clear out the quick load icon from the sys-tray.  if i open mozilla and then
close it relatively quickly (less than an hour) the reload of the systray icon
is quite fast, but after a longer day w/ the browser open, the time it takes for
the icon to disapear (unload?) and then reappear (reload?) becomes significantly
longer, approaching 30 seconds at times.

this sluggishness seems to *only* come about when the actually browser is open,
*not* when the browser is closed and the quickload has been in the systray for
an extended period.  

i have not sat down w/ a stopwatch to see if the number of tabs open influences
this degredation...

Reproducible: Always

Steps to Reproduce:
1. open mozilla and open between 4-20 diff pages in diff tabs
2. minimize and restore
3. note quick response and redraw of window
4. minimize
5. wait 1 hour
6. restore; note slightly slower response time for redraw of window
7. minimize
8. wait 3 hours
9. restore; note significantly slower response time

Actual Results:  
performance degraded

Expected Results:  
performance should not be dependent on the amt of time the browser is open...

it seems like there's a mem leak somewhere or something... which doesn't make
much sense...

perhaps calling the garbage collector and forcing it to clean out the garbage
every 5-10 min or so that the browser is open would solve the problem...

Comment 1

[Daniel Wang]

*** This bug has been marked as a duplicate of 76831 ***

Comment 2

[john seely]

doh... sry for the dupe... i searched... :(  

m/b one of those g00gle appliance boxes would make searching easier ;)  or, i
guess, i could spend more time searching... that would be cheaper...

btw:  Debug->Leak Detector->Dump Memory Leaks seems to restore normal
functionality...