Bug#640331: iceweasel 6.0 - huge ram use

niky 45 niky.el45 at gmail.com
Wed Sep 14 22:10:16 UTC 2011


ok, some more tests.

i was thinking, which extension can use so much ram?? so i had started
disabling te obvious ones: fasterfox (has some cache options that would use
pretty much ram), autopager, lazarus...

the i thought: hey. what if i dis-enable ALL of them (again)??  the results
of the previous test, showed me that an idle measure of ram used (i.e.
having firefox opened for a couple minutes), are not always relevant. many
times, opening a (blank) tab, almost duplicates the ram use.

so, i had disabled all of them, and opened some tabs: gmail (writing this),
the addons manager, the about memory one (which i show in the attached
screenshot), gogle reader, and a forum i usualy read (espaciolinux.com).

at launch time, conky read ~300 Mb, a very good measurement. after opening
these tabs... voila!! now conky reads 1.31 Gb, and you can see (in the
attachment) that the about:memory gives similar data.

in the second attachment, you can also see the addons: none enabled. (if
anybody wants the modified preferences section, tell me and i'll find a way
to upload it.)

so, now, I think addons have nothing to do with the huge ram use.

however, enabling safe mode, same tabs, showed a ram use of ~250 Mb. (sorry,
no screenshots, i thougth my email had been erased, so i closed iceweasel
without more testing, just to restart it in normal mode and see that my
email was just there.)

so.... this shows that the problem is in the config?? should i reset the
config to see what happens?? any way to save a backup to restore it back in
case it's not a config problem??

PS: thank you both for helping. i never thought i would receive such replies
(the last time i sent a bug report (to debian lists), i think it got lost in
the mailing list, since i don't remeber receiving any reply)

2011/9/14 niky 45 <niky.el45 at gmail.com>

> ok, since I also know nothing about XUL, i'll try disabling extensions one
> by one, to see if at any point, that ram use falls to acceptable levels.
>
> first try is ABP, since is the only common extension we (Leo and me) are
> using.
>
> the ram use looks stable at 720 Mb (lower than before, but not enough),
> using gmail, google reader (showing a "random" tag), and the addons manager
>
> ok. just disabled all addons (but NO safe mode, just disabled them). same
> tabs. 447 Mb (looks stable).
>
> trying to enable back ABP (but BEFORE restarting, so no addons actualy
> enabled), memory rises to 649 Mb. what's happening here?? the extensions tab
> was already open, but *switching to it *raised memory use from ~450 Mb to
> ~650 Mb.
>
> ABP + addon compatibility reporter (same tabs), 477 Mb. ?!?!? no rise in
> memory use if i go to extensions tab, or if i tell it to enable a "random"
> one. (WITHOUT restarting)
>
> plus auto pager and bartab* (same tabs), ~496 Mb *bartab is NOT officialy
> comaptible with iceweasel 7.0. however, it works as expected.
>
> now a rise: plus easy youtube video downloader, and element hidig helper
> for ABP (same tabs) ~708 Mb. however, its not nearly to those almos 2 Gb
> that used before.
>
> disabling (only) the element hiding helper for APB doesn't help: 1.09 Gb
> (same tabs).
>
> enabling it back, and disabling the easy youtube video converter, gives me
> ~510 Mb.
>
> ok, now i have to study, so i'll test more things later. but i can't help
> thinking: *why, with some extensions, memory use falls?? I mean, if
> everything works as it's supposed to be, I would expect no changes, or a
> small rise (in memory use). *but a fall??
>
> one last try (had to close it to read conky's data without iceweasel open):
> same addons, just gmail: ~295 Mb (don't know if it would rise if I play
> around, or if it's a stable measure.)
> opening a blank tab rises it to 500 Mb. loading google reader, rises it
> again to ~700. closing it, does nothing.
>
> *side note: meory uses are givien by just looking at conky (so, whole
> system's memory use is counted). if i close iceweasel, conky reads ~130 Mb
>
>
> --
> _.-'((NikY))'-._
>
> English it's not my language. I'm trying to do my best, but forgive me if I
> make a mistake.
>
>
>
>
>


-- 
_.-'((NikY))'-._

English it's not my language. I'm trying to do my best, but forgive me if I
make a mistake.
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