Hitachi

JP1 Version 12 JP1/Data Highway - Server Configuration and Administration Guide


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 JP1/Data Highway - Server System Administrator Guide and the JP1/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