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The Geo Cache system will cache data, and module output, in cache files. Using the cache system will greatly reduce the amount of data that is retrieved from the database, resulting in faster page loads and less strain on the database server.
This section lists information about the file caching system. If you have it turned on, it will list the number items that have been cached so far.
Removes all cache items
Removes any cache items that caches the "end product" of what is displayed on the end user's computer.
Removes any cache items that caches things based on raw data that is stored in the database.
Turning on the cache system should significantly speed up high-traffic sites, since it eliminates the need to retrieve certain data from the database, instead being able to retrieve the information from the cache files.
Turning on activates the cache system.
If you turn the cache system on, but when the page refreshes it goes back to off, you may need to CHMOD 777 the directory _geoCache/ in order to use the cache system.
More "advanced" settings to control how the cache system work are planned for future releases. At this time, however, the only available setting is to turn the cached system on or off.