2950 - 在 IBM Power11 上使用 PowerVM 最大限度地减少 SMT8 的 CPU 时间回收.pdf

1、Orlando,FLOctober 69IBM TechXchange 2025Earl Jew()IBM Technology Expert Labs/USA Senior Delivery Consultant2950 Minimizing CPUtime recycling at SMT8 on IBM Power11 with IBM PowerVMIBM Technology Expert Labs/USA Copyright IBM Corporation 20252ABSTRACT TechXchange 2025This session presents tactical me

2、thods for minimizing CPU time recycling at SMT8 on IBM Power11 running AIX.Excess CPU time recyclingreflected when AIX vmstat reports more than 50%in the(cpu:pc)fieldindicates over-inflation of CPU usage,often due to an excessive number of configured virtual CPUs(vCPUs)with insufficient workload.Thi

3、s inefficiency results in underutilized software licenses spread thinly across too many vCPUs.With the introduction of the new Resource Groups feature in IBM Power11,administrators gain enhanced control over workload placement and resource prioritization,enabling more intelligent tuning of CPU alloc

4、ations.Attendees will learn how reducing CPU time recycling at SMT8 enables more efficient processing on fewer vCPUs,leading to tighter software license utilization and improved overall system performance.Minimizing CPUtime recycling at SMT8 on IBM Power11 with PowerVMEarl Jew ()Senior Delivery Cons

5、ultant-IBM Power Systems and IBM Systems Storage IBM Technology Expert Labs/USA-Power delivery practice200 Spectrum Center Dr,Suite 2000(20thFloor),Irvine,CA USA 92618IBM Technology Expert Labs/USA Copyright IBM Corporation 20253ABSTRACT originalThis session will detail the tactics for:Minimizing CP

6、Utime recycling at SMT8 Minimizing CPUtime recycling at SMT8 reduces excess CPUtime recycling to the SharedPool.Sustaining long durations of AIX:vmstat:cpu:(id+wa)at greater than 50%means:AIX:vmstat:cpu:pc is over-inflated with excess CPUtime recycling to the SharedPool;there are too many configured