Bug 18458

Summary:	very high processor and disk usage on wmv clips
Product:	WebKit	Reporter:	mntek <mntek>
Component:	Plug-ins	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED WORKSFORME
Severity:	Normal	CC:	ap
Priority:	P2	Keywords:	InRadar, Performance
Version:	528+ (Nightly build)
Hardware:	Mac
OS:	OS X 10.5
URL:	http://ru.fishki.net/picsw/042008/11/vileo/hakuho_vs_asashoryu_the_real_sumo_fighting_8.wmv

Description mntek 2008-04-13 04:40:26 PDT

very high processor and disk usage while opening this clip, and after close tab with it.
only restart helps

Comment 1 J. Charles Holt 2008-04-13 08:06:19 PDT

I'm using Flip4Mac, and attempting to play a WMV file spikes the processor usage to maximum, causing my MacBook to get scorching hot.

Comment 2 Alexey Proskuryakov 2008-04-14 00:42:29 PDT

This sounds mostly like a Flip4Mac issue - but it the fact that processor usage stays high after closing the tab might indicate a WebKit plug-in handling problem, too.

I don't have Flip4Mac installed, so I haven't tried to reproduce.

Comment 3 Alexey Proskuryakov 2008-04-14 00:43:42 PDT

<rdar://problem/5861206>

Comment 4 Alexey Proskuryakov 2008-04-14 01:02:13 PDT

*** Bug 18457 has been marked as a duplicate of this bug. ***

Comment 5 Deirdre Saoirse Moen 2008-04-14 16:01:56 PDT

What version(s) of Flip4Mac?

Comment 6 mntek 2008-04-15 00:21:28 PDT

(In reply to comment #5)
> What version(s) of Flip4Mac?
> 

2.2.0.49

Comment 7 Alexey Proskuryakov 2008-05-30 14:56:53 PDT

Could you please attach a sample of Safari after closing the tab? To take the sample, you can use /Applications/Utilities/Activity Monitor.app.

Comment 8 Alexey Proskuryakov 2008-10-02 07:06:18 PDT

I cannot reproduce this issue with Flip4Mac 2.2.1.11. When the video from bug URL is playing, Safari processor usage of my PowerMac G4/1.25 is under 25%. When I close the tab, it immediately drops to zero.

Tested with shipping Safari/WebKit 3.1.2 and with a local WebKit build under Mac OS X 10.4.11.

Closing as WORKSFORME, please re-open if you are still seeing this issue with latest Flip4Mac.