[wp-trac] [WordPress Trac] #63858: Trigger the wp_cron action from the shutdown hook instead of the init hook to reduce TTFB (⏱️ Time To First Byte) and improve performance 📈

[WordPress Trac]

#63858: Trigger the wp_cron action from the shutdown hook instead of the init hook
to reduce TTFB (⏱️ Time To First Byte) and improve performance 📈
-------------------------------------------------+-------------------------
 Reporter:  pmbaldha                             |       Owner:
                                                 |  westonruter
     Type:  enhancement                          |      Status:  closed
 Priority:  normal                               |   Milestone:  6.9
Component:  Cron API                             |     Version:  2.1
 Severity:  normal                               |  Resolution:  fixed
 Keywords:  has-patch needs-testing needs-dev-   |     Focuses:
  note has-unit-tests                            |  performance
-------------------------------------------------+-------------------------
Changes (by peterwilsoncc):

 * status:  accepted => closed
 * resolution:   => fixed


Comment:

 In [changeset:"60925" 60925]:
 {{{
 #!CommitTicketReference repository="" revision="60925"
 Cron API: Spawn cron jobs on shutdown hook.

 Modifies `wp_cron()` to register the spawning of cron jobs on the
 `shutdown` hook rather than the `wp_loaded` hook.

 The loopback request made while spawning cron jobs is intended to be non-
 blocking, however in some circumstances that isn't the case and the
 spawning will increase the time to first byte.

 Props westonruter, pmbaldha, mukesh27.
 Fixes #63858.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/63858#comment:12>
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