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Category Archives: Performance tuning
Graphing ilcs in Grafana
Graphing of ilcs in AIX is not included in the nimon data output because ilcs comes from the mpstat command and ilcs is not part of the perfstat library that njmon uses. ilcs is “Involuntary Logical CPU switches” and occurs … Continue reading
Posted in AIX, IBM POWER, Performance tuning, Scripting
Tagged aix, IBM power, ilcs, perfomance, POWER, processor pool, processor switches, shared processor pools
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Capacity and performance check script
Another little script I wrote to check capacity aspects of an AIX LPAR. I call it capacity checks as it is basing most of the checks on counters and averaging out over 90 days. Some of this is based on … Continue reading
Starting tactic script for CPU allocation calculations on POWER9/10
Based on Earl Jew’s presentation on the 6th of October 2022, “Simplest starting tactic for Power10 AIX exploitation V1.2″. Excellent IBM POWER VUG materials can be found here: https://ibm.ent.box.com/s/6hn2orvig4r2peu6e39owmp07ewyyf4x And the meeting presentation replay here: https://ibm.ent.box.com/s/5atsp26sxup1ob04c3urbkiovj8epbax This is an analytic … Continue reading
Posted in AIX, IBM POWER, Linux, Performance tuning, Scripting
Tagged IBM, LPAR, POWER, Processor entitlement, script, smt, Tuning, virtual CPU
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