~~NOTOC~~

====== Site Slowing Down Over Time ======

==== Symptoms ====
  * Site gets slower over time.

==== Cause ====
For some big sites, 35,000 products & 500,000 SKUs for example, the speed at which pages are served begins to slow down after the ''var/cache'' directory fills up. 

==== Solution ====
The problem can be resolved by switching Magento's backend default filesystem cache (in ''var/cache'') to an in-memory cache directory using [[http://www.devdocs.magento.com/guides/m1x/ce18-ee113/using_redis.html|Redis]] or Memcached. 

If this problem persists, try flushing both the Magento cache and Redis/Memcached manually.