You may find this article helpful: http://rethinkdb.com/docs/memory-usage/ http://rethinkdb.com/docs/memory-usage/ The article describes how RethinkDB uses mem

You may find this article helpful: http://rethinkdb.com/docs/memory-usage/ http://rethinkdb.com/docs/memory-usage/ The article describes how RethinkDB uses memory to reduce disk access and process queries, as well as how to reduce its memory usage with `--cache-size`.