[wp-trac] [WordPress Trac] #39560: 4.7 About page causes high CPU usage

[WordPress Trac]

#39560: 4.7 About page causes high CPU usage
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 Reporter:  SergeyBiryukov  |       Owner:
     Type:  defect (bug)    |      Status:  new
 Priority:  normal          |   Milestone:  4.7.2
Component:  Help/About      |     Version:  4.7
 Severity:  normal          |  Resolution:
 Keywords:                  |     Focuses:
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Description changed by SergeyBiryukov:

Old description:

> After the upgrade to 4.7, some users
> [https://ru.wordpress.org/support/topic/вп-4-7-и-цп-100x4/ reported a
> 100% CPU load] after being redirected to the About page, apparently
> caused by three videos set to `autoplay="1"` simultaneously. Others made
> a point that it's also a bad UX for users with slow and/or limited data
> plans.
>
> We should try to fix it in 4.7.2 or at least avoid doing that for future
> releases.

New description:

 Upon the upgrade to 4.7, some users
 [https://ru.wordpress.org/support/topic/вп-4-7-и-цп-100x4/ reported a 100%
 CPU load] after being redirected to the About page, apparently caused by
 [source:tags/4.7.1/src/wp-admin/about.php?marks=90,107,122#L84 three
 videos set to autoplay simultaneously]. Others made a point that it's also
 a bad UX for users with slow and/or limited mobile data plans.

 We should try to fix it in 4.7.2 or at least avoid doing that for future
 releases.

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Ticket URL: <https://core.trac.wordpress.org/ticket/39560#comment:1>
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