92 POWER7 and POWER7+ Optimization and Tuning Guide
/var/log/aso/aso_process.log
The aso_process.log file contains data from aso.log, plus a detailed audit trail of
workloads that are considered for optimization, the actions that are taken, or reasons for
not acting (and, if not, why not). See Example 4-3.
Example 4-3 Sample aso_process.log file that includes data, an audit trail, and a list of actions
taken
Timestamp ASO process id
Oct 21 05:52:47 localhost aso:info aso[5963954]: [SC][5243360] Considering for
optimisation (cmd='circularBufferBenchmark', utilisation=1.14,pref=0; attaching
StabilityMonitorBasic)
Name of workload
Tag
Oct 21 05:54:12 localhost aso:info aso[5963954]: [EF][sys_action][5243360]
Attaching (load 2.14) to domain TwoCore (cores=2,firstCpu=0)
4.3 AIX preferred practices
This section describes AIX preferred practices, and includes three subsections:
AIX preferred practices that are applicable to all Power Systems generations
AIX preferred practices that are applicable to POWER7
POWER7 mid-range and high-end High Impact or Pervasive advisory
4.3.1 AIX preferred practices that are applicable to all Power Systems
generations
Preferred practices for the installation and configuration of all Power Systems
generations are:
If this server is a VIO Server, then run the VIO Performance Advisor on the VIO Server.
Instructions are available for VIOS Advisor at:
http://www.ibm.com/developerworks/wikis/display/WikiPtype/VIOS+Advisor
For more information, see “VIOS Performance Advisor” on page 157.
For logical partitions (LPARs) with Java applications, run and evaluate the output from the
Java Performance Advisor, which can be run on POWER5 and POWER6, to determine if
there is an existing issue before you migrate to POWER7. Instructions are available for
Java Performance Advisor at:
https://www.ibm.com/developerworks/wikis/display/WikiPtype/Java+Performance+Adv
isor
For more information, see “Java Performance Advisor” on page 159.
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