[webkit-help] WebKit Memory Management

[Nilesh Patil]

Hi
Not really sure whether webkit has its own memory model. It does have a
memory based cache layout.
To make memory management work on ARM platform , i think , you need to
implement your own memory management algo/logic.
For reference you can refer to Fastmalloc procedure.

Probably you can refer to opensource S60 webkit (
http://opensource.nokia.com/projects/S60browser/) and (
http://trac.webkit.org/wiki/S60Webkit).
This has memmory manager ( though very primitive ) implemented.

Thanks &Regards
Niilesh

On Wed, Sep 23, 2009 at 7:19 AM, Fan, Jim <Jim.Fan at polycom.com> wrote:

>  Hi All,
>
>
>
> Can someone explain briefly on how WebKit manages dynamic memory
> allocations? And whether it’s possible to limit the memory WebKit uses?
>
> We have a ARM based device with 256MB of physical memory, running Qt
> 4.5.2/Webkit 527 on embedded Linux, We’ve disabled the internal cache in
> WebKit by doing:
>
>
>
>        QWebSettings::setMaximumPagesInCache(0);
>
>        QWebSettings::setOfflineStorageDefaultQuota(0);
>
>        QWebSettings::setObjectCacheCapacities(0, 0, 0);
>
>
>
> And I’ve also verified that the internal cache is disabled (by doing
> Cache::dumpStats()), however the memory utilization would keep growing while
> we click through random pages starting from google (e.g. www.google.com,
> click on news, click on the first news page, etc). The allocated memory
> however, would stabilize after it reaches about 53MB, suggesting some kind
> of limitation/recycling mechanism kicking in.
>
>
>
> So my question is, if there’s some kind of limitation for the maximum
> dynamic memory webkit can get, can we modify that limit to a smaller number?
>
>
>
> P.S. The allocated memory data was retrieved from mallinfo.arena (
> http://docs.sun.com/app/docs/doc/816-5168/mallinfo-3malloc?a=view), and
> we’ve ruled out the possibility that the application code itself is leaking.
>
>
>
> Thanks,
>
> Jim
>
> _______________________________________________
> webkit-help mailing list
> webkit-help at lists.webkit.org
> http://lists.webkit.org/mailman/listinfo.cgi/webkit-help
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-help/attachments/20090923/ce14b6f8/attachment.html>