[wp-trac] [WordPress Trac] #34359: Cache output of `wp_upload_dir()` to improve performance

[WordPress Trac]

#34359: Cache output of `wp_upload_dir()` to improve performance
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 Reporter:  DH-Shredder   |       Owner:  DH-Shredder
     Type:  defect (bug)  |      Status:  assigned
 Priority:  normal        |   Milestone:  4.4
Component:  Media         |     Version:
 Severity:  normal        |  Resolution:
 Keywords:  needs-patch   |     Focuses:  multisite, performance
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Comment (by DH-Shredder):

 Replying to [comment:6 azaozz]:
 > As far as I see responsive images only need `$uploads_dir['baseurl']`.
 Maybe only this can be cached for now, so there is only one call to
 `wp_upload_dir()` per front-end page load.

 If we can avoid the call completely, that's likely fine for responsive
 images.
 If it's going to be cached for responsive images, though, I'd definitely
 prefer to see it in `wp_upload_dir()`, so it improves performance beyond
 just responsive image support.

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Ticket URL: <https://core.trac.wordpress.org/ticket/34359#comment:8>
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