The HiperSockets™ multiple write facility moves multiple output data buffers in a single write operation. This facility might reduce CPU usage, and might provide a performance improvement for large outbound messages that are typically generated by traditional streaming workloads such as file transfer, and interactive web-based services workloads such as XML or SOAP.
To enable the HiperSockets multiple write facility on all HiperSockets interfaces, including interfaces created for dynamic XCF, add the IQDMULTIWRITE parameter to the GLOBALCONFIG statement. For more information about the GLOBALCONFIG statement and the HiperSockets multiple write facility, see z/OS Communications Server: IP Configuration Reference.