File cache is fast and reliable, but requires many filesystem lookups. * > Database cache can be used to cache items remotely, but is slower. * > Memcache is very high performance, but prevents cache tags from being used. * * params - Driver parameters, specific to each driver. * * lifetime - Default lifetime of caches in seconds. By default caches are stored for * thirty minutes. Specific lifetime can also be set when creating a new cache. * Setting this to 0 will never automatically delete caches. * * requests - Average number of cache requests that will processed before all expired * caches are deleted. This is commonly referred to as "garbage collection". * Setting this to 0 or a negative number will disable automatic garbage collection. */ $config["default"] = array ( "driver" => "database", "params" => null, "lifetime" => 84600, "requests" => 1000, "prefix" => null, );