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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
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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
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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
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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
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Creation date
September 2009
Last update
June 2010