Title: [Plugin: W3 Total Cache] uncached persistent objects
Last modified: August 20, 2016

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# [Plugin: W3 Total Cache] uncached persistent objects

 *  [Stephane Boisvert](https://wordpress.org/support/users/sboisvert/)
 * (@sboisvert)
 * [14 years, 5 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-uncached-persistent-objects/)
 * Here are the general debug stats:
    Engine: apc Caching: enabled Total calls: 
   3057 Cache hits: 2563 Cache misses: 494 Total time: 0.0601 This is warm cache
   after a bit of browsing and hitting that same page many times. There seems to
   be, to my humble eyes, a high level of uncached objects. Now this may be because
   of my configurations (defaults) or something else perhaps. But I see that most(
   but not all) of the source: persistent objects are not cached example: # | Status
   | Source | Data size (b) | Query time (s) | ID:Group 1 | not cached | persistent
   | 0 | 0.0001 | current_site:site-options 2 | not cached | persistent | 0 | 0 
   | 1:site_name:site-options 3 | not cached | persistent | 0 | 0 | current_blog_libdev.
   ca:site-options 4 | not cached | persistent | 0 | 0 | 2f62c95411244c91f75ab49cc9434b91:
   blog-lookup
 * it seems that it is alot of objects with a size of 0. Perhaps there is a check
   of 0 == false that could be converted to 0=== false to speed things up? Of course
   these are just my speculations and I could just be way off. I believe apc_fetch
   has a param by reference that returns if it was a successful value return (to
   determine the difference between retrieving the value false from the cache and
   not being able to retrieve anything).
 * Thank you,
 * -Stéphane
 * [http://wordpress.org/extend/plugins/w3-total-cache/](http://wordpress.org/extend/plugins/w3-total-cache/)

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Andreas](https://wordpress.org/support/users/andreasnrb/)
 * (@andreasnrb)
 * [14 years, 3 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-uncached-persistent-objects/#post-2486539)
 * –
 *  Plugin Contributor [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
 * (@fredericktownes)
 * [14 years, 3 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-uncached-persistent-objects/#post-2486543)
 * Changed it so that it can display empty value in the next release.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘[Plugin: W3 Total Cache] uncached persistent objects’ is closed to new
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 * ![](https://ps.w.org/w3-total-cache/assets/icon-256x256.png?rev=1041806)
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 * 2 replies
 * 3 participants
 * Last reply from: [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
 * Last activity: [14 years, 3 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-uncached-persistent-objects/#post-2486543)
 * Status: not resolved