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Linux on Power I/O Performance Tuning GuideThis document covers the following categories of tuning Linux for optimal performance:
The performance tuning of a system is often a trade-off between choices. For instance,tuning the system for low latency may reduce throughput. Hence, it is important to havespecific goals for the desired tuning outcomes.This document provides tuning information for the following types of I/O:
Each I/O type is described in an individual tuning section because each I/O type hasunique performance tuning techniques and tunable parameters.When tuning a system for performance, a performance baseline should first bemeasured. Tuning changes should be made incrementally or in small sets. Afterchanges are made, the performance of the system should be re-measured so that theeffects of the changes can be quantified in relation to the baseline. This will allow youto identify the most beneficial tunings.Many factors influence the performance in a system. This document describes somebest practices for performance optimization in Linux on Power systems. Actualperformance measurements may vary.
Thanks for the input Fredrik. I've added it to our topic list for the next release.
A great addition to the VETH tuning section is if you could add a section on MTU bypass, both explicit and implicit (plso) and examples to determine if it is set up correctly.
Version 3 of the Guide is now available.
Thank you Greg, and team !
This is very valuable for me from SAP on Power platform support, and I want to say for the overall SAP on Power development team.
Ralf Kokowski