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Network performance considerations for IBM Z

Presentation abstract
  • Performance comparison of HiperSockets and shared RoCE Express 2 in different scenarios
  • Scenarios ranging from latency critical to large transactional and streaming workloads with varying number of parallel connections
  • Besides latency and throughput, the processor consumption is part of the comparison

View Network_performance_considerations_for_IBM_Z

Creation date January 2018

Network tuning

Presentation abstract
  • General Linux network performance considerations
  • Recommendations for using HiperSocket and OSA connections
  • Special settings for SAP systems

View Network tuning

Creation date March 2009 Last update December 2016

OSA Express4s

Presentation abstract
  • Performance comparison of OSA Express4s and OSA Express3
  • Comparison in LPAR and under z/VM

View OSA Express4s

Creation date March 2014

Network connection types

Presentation abstract
  • Performance comparison of different scenarios:
    • Linux LPAR to external via OSA
    • Linux LPAR to Linux LPAR via HiperSockets
    • Linux guest to Linux guest
    • Linux guest to external via OSA
    • Linux guest to external via VSWITCH
    • Linux guest to Linux LPAR via HiperSockets
  • Scaling the number of connections
  • Typical workloads such as: online transaction, database query, and file transfer

View Network connection types

Creation date September 2009 Last update June 2010