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@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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