You can also use the MongoDB Profiler to get a historical view of the performance of your queries and can easily separate out results based on scanned documents

You can also use the MongoDB Profiler to get a historical view of the performance of your queries and can easily separate out results based on scanned documents and query time. http://docs.mongodb.org/manual/tutorial/manage-the-database-profiler/ http://docs.mongodb.org/manual/tutorial/manage-the-database-...