It is happening on WinXP, FF 3.5.1, 3.5.2, 3.5.3, on "clean" setup as well.
It is apparently specific to Windows (not surprising), and is some
side effect of the ABBR element; using lots and lots on a page causes
endless or nearly endless CPU.
Attempting to turn it off with "abbr { display:none; }" makes it
worse: it is then 100% CPU instead of 95-97%. FF renders the page,
then goes back and re-renders the first occurrence of each ABBR
element with a superscript giving the expansion. I suspect it is doing
this (re-render) for all of the elements on the page, so with more
than a few it goes CPU bound for a long time. But also in some way
worse than that, since it doesn't stop. (quadratic with number of the
elements? ;-)
Makes RC and watchlist unusable for now.
(mozilla seems to be susceptible to going CPU bound and thrashing VM
under various odd conditions, almost always on Windoze ;-)
Best,
Robert
On Thu, Sep 17, 2009 at 11:20 PM, Platonides <platoni...@gmail.com> wrote:
> Robert Ullmann wrote:
>> Hi,
>>
>> Something bad happened, having to do with the "legend" junk add to RC
>> and similar pages. Firefox will go compute bound (or very nearly) as
>> long as the page is open, even if hours.
>>
>> It isn't java/javascript (first suspect ;-), turning them off has no
>> effect. It doesn't quite happen with 50 changes shown, always happens
>> with 100 or more. Long pages without the cruft (eg.
>> http://en.wiktionary.org/wiki/Special:Contributions/93.152.180.56 )
>> don't cause the problem.
>>
>> WinXP updated to current, FF at 3.5.1 and 3.5.2.
>>
>> Is there a way to turn that added stuff off? It is pure noise, not
>> helpful at all. (yes, css display:none, but must everyone do that?)
>>
>> best,
>> Robert
>
>
> Can't reproduce. Where *is* it happening?
> http://en.wiktionary.org/wiki/Special:RecentChanges ?
>
>
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