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Issue 666935 link

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Issue metadata

Status: WontFix
Owner: ----
Closed: Jan 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug-Regression



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Video playback starts consuming insane amount of CPU

Reported by teo8...@gmail.com, Nov 18 2016

Issue description

UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.100 Safari/537.36

Example URL:
https://www.youtube.com/watch?v=t86v3N4OshQ&t=2465s

Steps to reproduce the problem:
1. play https://www.youtube.com/watch?v=t86v3N4OshQ&t=2465s (probably any video will do, and this may happen randomly and not be systematically reproducible)
2. Be sure to watch it for several minutes

What is the expected behavior?
should never consume more than barely noticeably amount of CPU

What went wrong?
After several minutes playing, it starts to consume 300% CPU and more (on a quad core), hence beginning to stutter horribly and render the whole system unresponsive. CPU consumption will drop, of course, if you stop playing, and go high again if you resume playing.

Restarting Chrome won't fix the issue. Restarting the fucking computer will.

Did this work before? Yes ages ago

Is it a problem with Flash or HTML5? HTML5

Does this work in other browsers? N/A

Chrome version: 54.0.2840.100  Channel: stable
OS Version: 
Flash Version: Shockwave Flash 23.0 r0
 
Labels: M-54 Needs-Triage-M54
Cc: krajshree@chromium.org
Labels: Needs-Feedback
Unable to reproduce the issue on MAC 10.11.6, Windows 10 and Ubuntu 14.04 using chrome reported version #54.0.2840.100, latest dev #56.0.2924.3 and latest canary #57.0.2928.0.

Attached a screen cast for reference.

Following are the steps followed to reproduce the issue.
------------
1. Navigated to https://www.youtube.com/watch?v=t86v3N4OshQ&t=2465s and watched video for 5 minutes.
2. Observed that it consumed only 20-30% amount of CPU.

teo8976@ - Could you please check this issue on latest dev #56.0.2924.3 by creating a new profile without any apps and extensions and please let us know if the issue still persist or not.

Thanks...!!

Comment 3 by teo8...@gmail.com, Nov 23 2016

How long did you play it and how many times did you try? This happens sporadically and starts happening only after playing for a pretty long time (tens of minutes). And I suspect it only happens after the system has been up for hours. Actually I doubt whether this is an issue in Chrome or in the OS itself.

Can't do the test you ask, since the issue is not reproducible at will, it only happens sporadically and randomly.

In the meantime I've also found out that SOMETIMES, after stopping playing video and waiting for a few minutes, the issue goes away.
Project Member

Comment 4 by sheriffbot@chromium.org, Nov 30 2016

Labels: -Needs-Feedback Needs-Review
Owner: krajshree@chromium.org
Thank you for providing more feedback. Adding requester "krajshree@chromium.org" for another review and adding "Needs-Review" label for tracking.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Labels: -Needs-Review TE-NeedsTriageHelp
Owner: ----
Status: WontFix (was: Unconfirmed)
not repro on our side with latest Chrome 57.0.2970.0. 

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