[wp-trac] [WordPress Trac] #31277: Many WP Dashboard-only transients for 'browser version' set to autoload=yes in wp_options

[WordPress Trac]

#31277: Many WP Dashboard-only transients for 'browser version' set to autoload=yes
in wp_options
--------------------------------+------------------------------
 Reporter:  archon810           |       Owner:
     Type:  defect (bug)        |      Status:  new
 Priority:  normal              |   Milestone:  Awaiting Review
Component:  Options, Meta APIs  |     Version:  4.1
 Severity:  normal              |  Resolution:
 Keywords:                      |     Focuses:  performance
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Changes (by dd32):

 * component:  Database => Options, Meta APIs


Comment:

 As a recap of the rules we currently have

 `set_transient()`:
  - autoload = no, if it never expires
  - autoload = yes, if it expires (as is the case of `browser_*` cached for
 a week)
 `set_site_transient()`:
  - multisite: never autoloaded (it uses sitemeta, which only autoloads
 specific options, the `theme_roots` transient being one of them)
  - non-multisite; See `set_transient()`

 It's also worth noting that most users should only ever really have one or
 two `browser_*` rows, as most peoples browser UA doesn't change often. If
 you have many different people accessing wp-admin with different browsers
 though, it'll certainly add up.

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Ticket URL: <https://core.trac.wordpress.org/ticket/31277#comment:1>
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