[wp-trac] [WordPress Trac] #15812: Introduce wp_suspend_caching

[WordPress Trac]

#15812: Introduce wp_suspend_caching
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 Reporter:  duck_            |       Owner:                 
     Type:  feature request  |      Status:  new            
 Priority:  normal           |   Milestone:  Awaiting Review
Component:  Cache            |     Version:                 
 Severity:  normal           |    Keywords:  has-patch      
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 There are some occasions when it may be beneficial to temporarily disable
 object caching (just adding objects to the cache).

 '''Example'''
 I was doing some testing/profiling of large WXR imports and I noticed
 calls to wp_cache_add for every single post being imported (from
 wp_import_post -> get_post -> wp_cache_add). However, for the rest of the
 import these posts are not queried again making their existence in the
 cache redundant and using up a lot of memory unnecessarily. See
 [http://pastie.org/1376186 this paste] for my quick figures (from
 $wp_object_cache->stats() and memory_get_peak_usage) from local testing...
 tl;dr is ~199MB -> ~124MB memory usage for no increase in cache misses
 when importing 10000 posts.

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Ticket URL: <http://core.trac.wordpress.org/ticket/15812>
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