Prefetch Priority (-prefetchPriority)
- Last Updated: January 27, 2026
- 1 minute read
- OpenEdge
- Version 12.8
- Documentation
| Operating system and syntax | UNIX / Windows |
|
||
|---|---|---|---|---|
| Use with | Maximum value | Minimum value | Single-user default | Multi-user default |
| DBS | 32766 | 0 | – | 1 |
- n
- The number of prefetch records to add to a network message.
Use Prefetch Priority (-prefetchPriority)
to utilize a "pollskip" that adds n records to the
network message of an in-process prefetch query without additional polling. Adding more than
one record to the message at a time can greatly reduce the number of poll() calls being made on a large database configuration. The expected result
is that reducing poll() calls improves overall system
performance by decreasing the "System CPU" cycles allow for increased "User CPU" cycles. The
pollskip only occurs if the previous poll() call returned
nothing waiting.
To change this parameter while the database is running, use PROMON or the _DbParams VST.
You can use this parameter to support continuous operation of the database. For more information, see Change database parameters while the database is running.