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## 5.15.3 System ``Statistics

Displays the System Statistics page statistics.

The System Statistics page displays statistics for:

- Physical I/O. A physical I/O is an I/O that requires disk access. This report displays disk access statistics for physical reads and writes.

- Logical I/O. A logical I/O is an I/O that is satisfied in memory or disk. Displays the sum of buffer reads which might be consistent gets or current mode gets. Redo is the buffer in the SGA that contains information about changes.

- Memory Statistics. Displays memory consumption of the database.

- Time Statistics. Shows various times consumed by the database.

- SQL Cursor Statistics. Displays statistics about the cursors in the Oracle database.

- Transaction Statistics. Shows the number of transactions performed.

Parent topic: Monitoring the Database