[Webkit-unassigned] [Bug 14859] New: Removal of plugin event cap causes flash to eat 70%+ CPU on some sites

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=14859

           Summary: Removal of plugin event cap causes flash to eat 70%+ CPU
                    on some sites
           Product: WebKit
           Version: 522+ (nightly)
          Platform: Macintosh
               URL: http://www.dominos.com.au/home/
        OS/Version: Mac OS X 10.4
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Plug-ins
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: webkit-bugs at gentlyusedunderwear.com


Make sure the flash plugin is enabled and go to http://www.dominos.com.au/home/
and then click on the huge "order online" button. (you don't have to be in oz
to reproduce the issue). Now with the two flash movies playing, look at
Safari's CPU usage in top. On my computer box, it is around 79%.

A similar problem happens with the ads on
http://www.nytimes.com/2007/08/02/us/02bridge.html?_r=1&hp=&adxnnl=1&oref=slogin&adxnnlx=1186027285-8Uu/CbTQXNhjogdbpnioag
(if you get flash ads).

This becomes a significant issue when you're on a laptop, in the shower,
running off of battery and a Dell ad is looping in the background. The battery
quickly drains. This may become a very loud issue in the future if people start
complaining their battery doesn't last 2 hours (when they actually have an
unknown flash ad in the background).

Now, it'd be nice if someone could get Apple's evangelist people to bug Adobe
to fix the problem in flash itself, but I don't think Adobe would fix it based
on another bugs/implementation details that exist in the flash plugin.


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