bufsize

CFTPARM

[BUFSIZE = n]    {512..see below}

Size of the Transfer CFT internal buffer used to exchange data between monitor tasks, expressed in characters (bytes).

A large size favors performance but uses more memory.

Enter the size of the monitor internal buffer used to exchange data between monitor tasks:

  • 4096: default value for UNIX, Windows
  • 36608: default value for MVS
  • any other value from:
  • 512 to 65535 for Windows
  • 512 to 65535 for UNIX
  • 512 to 65535 for MVS

If this value is not greater than or equal to the maximum value of the rrusize and srusize parameters, the monitor sets this field to the maximum value of rrusize and srusize.

A large bufsize value improves performance but uses more memory.

The value of BUFSIZE must be equal to or greater than the maximum of the values of the RRUSIZE and SRUSIZE parameters of the various protocols. If this value is lower, the monitor sets the BUFSIZE value to the maximum of the values of the RRUSIZE and SRUSIZE parameters.

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