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Published on Apr 4, 2013
Nigel answers 7 questions he gets asked regularly about POWER7 Performance Entitlement (E) Virtual Processors (VP) & Affinity and Memory - Monitoring SMT use - Set Entitlement to typical use & monitor/tune it - Get to know your performance statistics - RTFM - Memory leak - unlikely & processes don't shrink - Lower the VP to get SMT threads working for you - rPerf sizing is fine but watch those assumption - Spare Capacity is hard to determine Watch those ratios - LPAR Entitlement : Virtual Processor - Machine Total VPs : Physical CPUs in the Pool