[Opera-Linux] Huge memory-footprint problem SOLVED! It's GNOME's fault!

[Patricia Aas]

On Thu, 02 Jul 2009 08:59:30 +0200, Eirik Byrkjeflot Anonsen  
<eirik at opera.com> wrote:

> Kenneth Crudup <kenny at panix.com> writes:
>
>>> Hmmm ... there's some 19,000 files in that directory; if GNOME's file-
>>> selector is leaking every time I save a file (sometimes as many as 300
>>> per day), that's something to consider.
>>
>>> I've changed opera:config to use the Qt selector instead. Let's see
>>> how this does. (I didn't save many files on the session running XVnc).
>>
>> Since doing this, I haven't seen Opera run more than about 2.8GB  
>> working,
>> and it subsequently dropped back to its quiescent value of ~1.6GB.
>>
>> So Opera Devs (et al.)- the problem lay with *GNOME*! (Is it too late to
>> go "Ah, I knew Opera wasn't at fault!" :)
>
> That is certainly a strong hint.  Bug report?  (Or add a comment to the
> already existing bug report, if there is such a thing...)
>
> It may have something to do with running the gtk/gnome file chooser on
> top of qt.  But this is completely unknown code to me, so I don't know.
>
> [...]
>> Also, I figured out what the deal is with the million file-descriptors-
>> NEVER use "Automatic" memory cache- if I set it there for some reason it
>> creates a huge amount of *on-disk* cache files that don't go away; I  
>> think
>> that might actually be a bug (right now I'm using a 400MB disk cache
>> size for testing, and with maybe some 80 tabs open I've only got 13
>> cache files open and 82 open FDs).
>
> Make a bug report.  This feels like it could be a possible explanation.
> (Although it is probably not because it is "automatic", but because it
> is big.  If I understand correctly, "automatic" is a fraction of
> available memory, which is unreasonably much on modern computers.)

We have enough info at least for now to investigate, so we are currently  
starting analysis, hopefully it is fixable on our end :)

Patricia

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