The onpload configuration parameters control the number of threads that onpload starts and the number and size of the buffers that are used to transfer data. Figure 125 shows which part of the onpload process is affected by each configuration parameter.
The AIOBUFSIZE and AIOBUFFERS parameters control the number and size of the buffers that onpload uses for reading from the input device. CONVERTTHREADS and CONVERTVPS control the amount of CPU resources to apply to data conversion. STRMBUFSIZE and STRMBUFFERS control the number and size of the buffers used to transport data between onpload and the database server.
The onpload configuration parameters are stored in the following files:
Appendix B. High-Performance Loader Configuration File describes each configuration parameter and gives the default value for each parameter. For information on how to choose appropriate values for the configuration parameters, see Usage Models and Performance Hints.
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