[wp-trac] [WordPress Trac] #58196: Improve performance of `_get_block_templates_paths`

[WordPress Trac]

#58196: Improve performance of `_get_block_templates_paths`
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 Reporter:  spacedmonkey  |      Owner:  (none)
     Type:  enhancement   |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Themes        |    Version:  5.9
 Severity:  normal        |   Keywords:
  Focuses:  performance   |
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 The `_get_block_templates_paths` function, is extremely expensive to run
 from a performance standard. Some profiles, mark it as much as 8% of the
 page load of a block theme page request. This is because of the recursive
 directory lookup.

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Ticket URL: <https://core.trac.wordpress.org/ticket/58196>
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