[wp-trac] [WordPress Trac] #31245: Replace alloptions with a key cache

[WordPress Trac]

#31245: Replace alloptions with a key cache
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 Reporter:  rmccue                             |       Owner:  rmccue
     Type:  enhancement                        |      Status:  assigned
 Priority:  normal                             |   Milestone:  Future
Component:  Options, Meta APIs                 |  Release
 Severity:  normal                             |     Version:
 Keywords:  has-patch needs-testing 4.4-early  |  Resolution:
                                               |     Focuses:  performance
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Comment (by tellyworth):

 I've been looking into whether we can adapt this for WordPress.com, and I
 have some concerns, mainly about the `wp_cache_set()` loop.

 The `wp_cache_set()` loop would cause many set calls instead of one.
 Depending on traffic patterns that could significantly increase the load
 on the cache, especially on large multisite installs. Adding a
 `wp_cache_set_multi()` function would fix that. Unfortunately the pecl
 memcache extension only supports single gets
 http://php.net/manual/en/memcache.set.php, so that's not a solution for us
 or anyone else who relies on it. (The memcached extension appears to
 support set multi, but internally it might just iterate over set, see
 [http://php.net/manual/en/memcached.setmulti.php]).

 I'm looking into whether we can simplify things a bit and make it
 filterable, perhaps combined with some of the ideas in #23330
 (specifically, making notoptions optional).

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Ticket URL: <https://core.trac.wordpress.org/ticket/31245#comment:18>
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