[wp-trac] [WordPress Trac] #54221: _transient_dirsize_cache is set to autoload=yes and kills db performance if it grows (20MB in our case)

[WordPress Trac]

#54221: _transient_dirsize_cache is set to autoload=yes and kills db performance if
it grows (20MB in our case)
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 Reporter:  archon810     |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Database      |     Version:  2.8
 Severity:  major         |  Resolution:
 Keywords:                |     Focuses:  multisite, performance
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Comment (by SergeyBiryukov):

 Replying to [comment:6 iandunn]:
 > Instead of calculating the size synchronously (but with the data
 partially cached), we could do a full calculation '''asynchronously''',
 and cache the result. That way the user always sees cached data, which is
 faster and avoids storing megabytes of data in an option.

 That sounds like a good approach.

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Ticket URL: <https://core.trac.wordpress.org/ticket/54221#comment:7>
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