MySQL Enterprise Monitor 3.3.9 Manual

20.2 Database File I/O and Lock Waits

This chapter describes the Database File I/O and Lock Waits reports. These reports identify I/O hot spots and lock wait contention in your application using the sys schema, thereby enabling you to tune the performance of your queries.

Important

The Database File I/O requires the MySQL sys schema, which is supported on MySQL 5.6 and 5.7, only.