The caching-store is a plugin which provides a store that will query a memcached server on a get. If the entity is not found in memcache, then the cached-store is queried. The cached-store is any other store, e.g. the text store, where the content is persisted.

This is a highly experimental plugin. It is in use on the server hosting this content but is not having much impact because use of this server is insufficiently concurrent to require it. It is likely the plugin would have a positive impact in a very high volume situation where individual tiddlers are being requested often. If you have an application like this, please let us know because that would be fun to help optimize.

The code and configuration information can be found at the tiddlyweb plugins github. As it says in the README you'll need to do some fiddling to make it go.