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Startup Command and Parameter Reference
Startup Parameter Descriptions : Prefetch Priority (-prefetchPriority)

Prefetch Priority (-prefetchPriority)

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.
Operating system and syntax
UNIX / Windows
-prefetchPriority n
Use with
Maximum value
Minimum value
Single-user default
Multi-user default
Database Server

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

The number of prefetch records to add to a network message.
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.