ASA Database Administration Guide
  Database Options
    Alphabetical list of options

PINNED_CURSOR_PERCENT_OF_CACHE option [database]

Function 

Specifies how much of the cache can be used for pinning cursors.

Allowed values 

Integer, between 0-100

Scope 

Can be set for the PUBLIC group.

Default 

10

Description 

The server uses pages of virtual memory for the data structures needed to implement cursors. These pages are kept locked in memory between fetch requests so they are readily available when the next fetch request arrives.

To prevent these pages from occupying too much of the cache in low memory environments, a limit is placed on the percentage of the cache allowed to be used for pinning cursors. You can use the PINNED_CURSOR_PERCENT_OF_CACHE option to adjust this limit.

The option value is specified as a percentage from 0 to 100, with a default of 10. Setting the option to 0 means that cursor pages will not be pinned between fetch requests.