[wp-trac] [WordPress Trac] #54447: Site Icons on My Sites in multisite network causing performance issue

[WordPress Trac]

#54447: Site Icons on My Sites in multisite network causing performance issue
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 Reporter:  wslyhbb                 |      Owner:  (none)
     Type:  defect (bug)            |     Status:  new
 Priority:  normal                  |  Milestone:  Awaiting Review
Component:  Administration          |    Version:  5.8
 Severity:  normal                  |   Keywords:
  Focuses:  multisite, performance  |
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 WordPress 5.8 added displaying the site icon on the My Sites menu. When a
 site has an icon, it takes 0.05 seconds per get_site_icon_url, and there
 are three of them per site, for a total of 0.15 seconds per site. When a
 multisite has hundreds of sites and 100 hundred of them have site icons,
 this adds up and adds 15 seconds to the page load time.

 The change causing performance issues:
 https://core.trac.wordpress.org/changeset/50834

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Ticket URL: <https://core.trac.wordpress.org/ticket/54447>
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