Caching is a method programs use to speed up processing time by saving frequently used and infrequently changing content to the hard drivelready. In this Video Joomla tutorial we will try to enable caching in Joomla.
Click Sites, then Global Configuration, go to System
Scroll down and and right to the Cache Settings, click Yes next to Cache to enable caching
Cache Time controls how to frequently, in minutes, the cache is refreshed. The default of 15 should be okay.
Choose a Cache Handler from the list. The default is Memcache, but that might not be installed on your server. Choose File if it isn't
Persistent connections to a server such as Memcache are kept open constantly and can somtimes provide a boost in speed. This is especially useful when connecting to a server that isn't located on the same computer as your website
If Joomla slows down after you enable caching, try turning on Memcache Persistent
Enabling Memcache Compression might also provide a performance boost
Lastly, enter the host and port where your memcache server is running. This default is localhost: 11211. If this isn't the case for you, or you just aren't sure, contact Support
Type localhost
Now type 11211
Now let's scroll back up and save these settings
Click [Save]
Caching has now been enable! If you have problems with Memcache, remember you can always change the cache handler to File