3.3.8 Buffer size during transfer and reception

Determine the size of the buffer per client connection that JP1/DH - Server uses in transfer and reception. You can estimate the buffer size for optimal performance by using the following calculation formula:

Buffer size per client connection maximum number of TCP connections block size

For details about the maximum number of TCP connections, see the Job Management Partner 1/Data Highway - Server System Administrator Guide and the Job Management Partner 1/Data Highway - Server Administrator Guide. For details about the block size, see 3.3.7 Block size during transfer and reception.

These settings can limit allocation of communication buffer memory to the specified values even if the size of data to be transferred or received is larger than one of the values set here. However, too small of a value can slow the transfer rate.

Table 3‒10: Default settings for the buffer size for transfer and reception

Setting item	Default value
Transfer buffer size in JP1/DH - Server	8 MB
Reception buffer size in JP1/DH - Server	8 MB

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