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IBM z/OS V2R1 Communications Server TCP/IP Implementation Volume 3: High Availability, Scalability, and Performance by Maulide Xavier, Rutsakon Techo, Georg Senfleben, Micky Reichenberg, Gilson Cesar de Oliveira, Uma Maheswari Kumaraguru, Rufus P. Credle Jr.

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HiperSockets Multiple Write
In IBM z/OS Communications Server, a HiperSockets interface can move multiple output data buffers in a single write operation. CPU usage can be reduced and there might be a performance improvement for large outbound messages typically generated by traditional streaming workloads such as FTP.
This appendix includes three scenarios to demonstrate the CPU utilization reduction that is obtained by using the HiperSockets Multiple ...

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