60 Minutes of NUMA VMworld Session Commands

August 27, 2019901 views

Verify Distribution of Memory Modules with PowerCLI

Get-CimInstance -CimSession $Session CIM_PhysicalMemory | select BankLabel, Description, @{n=‘Capacity in GB';e={$_.Capacity/1GB}}

PowerCLI Script to Detect Node Interleaving

Get-VMhost | select @{Name="Host Name";Expression={$_.Name}}, @{Name="CPU Sockets";Expression={$_.ExtensionData.Hardware.CpuInfo.NumCpuPackages}}, @{Name="NUMA Nodes";Expression={$_.ExtensionData.Hardware.NumaInfo.NumNodes}}

Action-Affinity Monitoring

Sched-Stats
-t numa-migration

Disable Action Affinity

numa.LocalityWeightActionAffinity = 0

numa.PreferHT

For more information on how to enable PreferHT: KB article 2003582

Host Setting:  numa.PreferHT=1

VM Setting:  numa.vcpu.PreferHT = TRUE