audit queue size

audit queue size determines the size of an audit queue. The in-memory audit queue holds audit records generated by user processes until the records can be processed and written to the audit trail.

Summary Information

Default value


Range of values

1 – 65535



Display level


Required role

System security officer

Configuration groups

Memory Use, Security Related

When you configure the queue suze, there is a trade-off between performance and risk. If the queue is too large, records can remain in it for some time. As long as records are in the queue, they are at risk of being lost if the system fails. However, if the queue is too small, it can repeatedly become full, which affects overall system performance; user processes that generate audit records sleep if the audit queue is full.

Following are some guidelines for determining how big your audit queue should be. You must also take into account the amount of auditing to be performed at your site.

The number of audit records that can fit on a page varies from 4 to as many as 80 or more. The memory requirement for the default audit queue size of 100 is approximately 42K.