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 <Platonides(a)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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