PMM Query Analytics - 2 Questions about some Queries

I´m using PMM version 1.17.1

What kind of Queries are Low Ranking Queries, that are on the top of Load of my system?
What are INIT DB, that are also consuming some resources?

Hi,

  1. Low Ranking Queries are queries which have not made to the topN queries which PMM stores for every period. You have lots of queries it looks!
  2. Init DB is what is logged to the query when you change database (like use XYZ)

More info here http://www.justskins.com/forums/what-does-init-db-245849.html

1 - Yes we do.
2 - Got it! It´s the PHP mysql_select_db().

Thanks for help Peter.