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Database Administration
Reference : Database Startup Parameters : Alphabetical listing of database startup parameters : Prefetch Priority (-prefetchPriority)
 
Prefetch Priority (-prefetchPriority)
Operating system and syntax
UNIX Windows
-prefetchPriority n
Use with
Maximum value
Minimum value
Single-user default
Multi-user default1
DBS
32766
0
0

1 The default of 0 produces the pre-Release 11.1 behavior.

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.