[wp-trac] [WordPress Trac] #57648: Performance regression in `wp_enqueue_global_styles()` for classic themes

[WordPress Trac]

#57648: Performance regression in `wp_enqueue_global_styles()` for classic themes
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 Reporter:  flixos90      |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  high          |   Milestone:  6.2
Component:  Editor        |     Version:  trunk
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:  performance
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Comment (by oandregal):

 Thanks for investigating and sharing your observations, Felix.

 I wanted to add a small note: the transient behavior was a bug. Users
 didn't see the changes they did in the site editor until 1 minute later
 because the transient wasn't invalidated properly. And, in some setups,
 the transient wasn't even flushed at all, causing issues with layout in
 6.1 as per https://github.com/WordPress/gutenberg/issues/45713 It's good
 that it was removed.

 All in all, the overall performance for 6.2 has been improved for all
 themes, so I agree we should close this ticket and focus on other things
 (investigate how to switch these caches to be persistent, fix more
 performance bottlenecks for all themes, etc.).

 As a side note, we can probably see a similar effect in the
 `wp_get_global_styles_svg_filters` function, that was also updated from a
 1-minute transient to a non-persistent object cache in
 https://github.com/WordPress/wordpress-develop/pull/3926

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Ticket URL: <https://core.trac.wordpress.org/ticket/57648#comment:18>
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