Manual:$wgMainCacheType/zh

细节
允许配置使用的对象缓存.

Here are the keys available by default (defined as constants in Defines.php):
 * – Do not cache (default).
 * – Use or  if they are set to something other than   or  . 否则，请使用.
 * – 使用APCu或WinCache（如果有）.
 * – Use if available. Servers must additionally be specified in.
 * – 使用数据库表.
 * 警告： 这可能比没有缓存要慢，即.

See for an example of a custom cache backend (e.g. Redis).