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Performance Schema. The Performance Schema includes several new features:

•    Instrumentation for table input and output. Instrumented operations include row-level accesses to

persistent base tables or temporary tables. Operations that affect rows are fetch, insert, update, and delete.

•    Event filtering by table, based on schema and/or table names.

•    Event filtering by thread. Morę information is collected for threads.

•    Summary tables for table and index l/O, and for table locks.

•    Instrumentation for statements and stages within statements.

•    Configuration of instruments and consumers at server startup, which previously was possible only

at runtime.