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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

3 Responses

  2. Mark Seymour

    Your session was the last one at VMworld 2019 Europe before I flew back to the UK and can I say it was numa.af :-). It was an area of virtualisation that I had not considered in depth, but now I will be paying more attention to it. So thanks for insight.

    • frankdenneman

      Thanks for the kind words and glad to be of help. In the host deep dive book I go into much more detail. It’s available at amazon, and a free ebook version is available at hostdeepdive.com