Appendix B. Performance tooling and empirical performance analysis 159
Figure B-3 is a snapshot of the LPAR performance advisor, focusing on the LPAR optimization
section of the report, which applies virtualization preferred practice guidance to LPAR
configuration, resource usage of the LPAR, and shared processor pool, and determines if the
LPAR configuration is optimized. If the advisor finds that the LPAR configuration is not optimal
for the workload, it guides the user in determining the best possible configuration. The LPAR
Performance Advisor can be found at:
https://www.ibm.com/developerworks/wikis/display/WikiPtype/PowerVM+Virtualization+
performance+advisor
Figure B-3 LPAR Virtualization Advisor
Java Performance Advisor
The Java Performance Advisor provides recommendations to improve performance of a
stand-alone Java or WebSphere Application Server application that is running on an AIX
machine. The guidance that is provided is categorized into four groups as follows:
Hardware and LPAR-related parameters: Processor sharing, SMT levels, memory, and
so on
AIX specific tunables: Process RSET, TCP buffers, memory affinity, and so on
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