Evaluate Performance in Detail › Tabular Report Sections › Summary Statistics Sections › I/O Rates

I/O Rates

This section describes the I/O subsystem collected from OpenVMS performance data.

Direct I/Os

The number of direct I/O operations performed per second during the reporting interval, exclusive of page and swap I/O. This system-wide statistic is also exclusive of I/O to mapped image sections, but includes RMS I/O.

Buffrd I/Os

The number of buffered I/O operations system-wide, performed per second during the reporting interval.

Lognam Trans

The number of logical name translations system-wide, performed per second during the reporting interval.

Mailbx Reads

The number of mailbox reads system-wide, performed per second during the reporting interval.

Mailbx Write

The number of mailbox writes performed per second during the reporting interval.