Title: Performance decrease
Last modified: August 30, 2016

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# Performance decrease

 *  [pulponair](https://wordpress.org/support/users/pulponair/)
 * (@pulponair)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/performance-decrease/)
 * As soon as i activate the plugin the performance (time to first byte) decreases
   by aprox. 300-500ms (cache warm). event though the amount of queries wents down
 * I experienced similar behavior when using other plugins enabling the apcu object
   cache.
 * I am using wp 4.3.1 + woocommerce, php-fpm 5.5 apc shm set to 64 MB.
 * The old apc object cache plugin does not shows that kind of behavior even though
   it has a worse hit/miss ration.
 * Any hints on how to track that down? Might be related to some system limits, 
   but not sure
 * [https://wordpress.org/plugins/apcu/](https://wordpress.org/plugins/apcu/)

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [miguelkennedy](https://wordpress.org/support/users/miguelkennedy/)
 * (@miguelkennedy)
 * [10 years, 2 months ago](https://wordpress.org/support/topic/performance-decrease/#post-6552135)
 * I’m experiencing the same issue too… My site runs much slower when I activate
   this plugin :/
 *  [Djib's](https://wordpress.org/support/users/djibs13/)
 * (@djibs13)
 * [9 years, 12 months ago](https://wordpress.org/support/topic/performance-decrease/#post-6552148)
 * Same issue
 *  [Nazar Hotsa](https://wordpress.org/support/users/bugnumber9/)
 * (@bugnumber9)
 * [9 years, 5 months ago](https://wordpress.org/support/topic/performance-decrease/#post-8485813)
 * Same issues under PHP 7 and apcu installed. According to query monitor DB times
   got considerably lower, but page generation times got much higher.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Performance decrease’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/apcu.svg)
 * [APCu Object Cache Backend](https://wordpress.org/plugins/apcu/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/apcu/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/apcu/)
 * [Active Topics](https://wordpress.org/support/plugin/apcu/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/apcu/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/apcu/reviews/)

## Tags

 * [down](https://wordpress.org/support/topic-tag/down/)
 * [performance](https://wordpress.org/support/topic-tag/performance/)

 * 3 replies
 * 4 participants
 * Last reply from: [Nazar Hotsa](https://wordpress.org/support/users/bugnumber9/)
 * Last activity: [9 years, 5 months ago](https://wordpress.org/support/topic/performance-decrease/#post-8485813)
 * Status: not resolved