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Hyper-V MPE 2012 NUMA Remote Pages

HyperVMPE2012.VirtualMachine.NUMARemotePages.Monitor (UnitMonitor)

Knowledge Base article:

Summary

Every VM in Hyper-V has a default NUMA node preference. Hyper-V uses this NUMA node preference when assigning physical memory to the VM and when scheduling the VM’s virtual processors. A VM runs best when the virtual processors and the memory that backs the VM are both on the same NUMA node, since such “remote” memory access is significantly slower than “local” access

Element properties:

TargetMicrosoft.Windows.HyperV.2012.VirtualMachine
Parent MonitorSystem.Health.PerformanceState
CategoryPerformanceHealth
EnabledTrue
Instance NameHyper-V VM Vid Partition
Counter NameRemote Physical Pages
Frequency300
Alert GenerateTrue
Alert SeverityMatchMonitorHealth
Alert PriorityNormal
Alert Auto ResolveTrue
Monitor TypeSystem.Performance.ConsecutiveSamplesThreshold
RemotableTrue
AccessibilityPublic
Alert Message
NUMA Remote Pages
Instance {0}
Object {1}
Counter {2}
Has a value {3}
RunAsDefault

Source Code:

<UnitMonitor ID="HyperVMPE2012.VirtualMachine.NUMARemotePages.Monitor" Accessibility="Public" Enabled="true" Target="MSWinHV2012Dis!Microsoft.Windows.HyperV.2012.VirtualMachine" ParentMonitorID="SHLib!System.Health.PerformanceState" Remotable="true" Priority="Normal" TypeID="SPerf!System.Performance.ConsecutiveSamplesThreshold" ConfirmDelivery="false">

  <Category>PerformanceHealth</Category>

  <AlertSettings AlertMessage="HyperVMPE2012.VirtualMachine.NUMARemotePages.Monitor_AlertMessageResourceID">

    <AlertOnState>Warning</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>MatchMonitorHealth</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Data/Context/InstanceName$</AlertParameter1>

      <AlertParameter2>$Data/Context/ObjectName$</AlertParameter2>

      <AlertParameter3>$Data/Context/CounterName$</AlertParameter3>

      <AlertParameter4>$Data/Context/SampleValue$</AlertParameter4>

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

    <OperationalState ID="ConditionFalse" MonitorTypeStateID="ConditionFalse" HealthState="Success"/>

    <OperationalState ID="ConditionTrue" MonitorTypeStateID="ConditionTrue" HealthState="Warning"/>

  </OperationalStates>

  <Configuration>

    <ComputerName>$Target/Host/Host/Property[Type="MSWinLib!Microsoft.Windows.Computer"]/NetworkName$</ComputerName>

    <CounterName>Remote Physical Pages</CounterName>

    <ObjectName>Hyper-V VM Vid Partition</ObjectName>

    <InstanceName/>

    <AllInstances>false</AllInstances>

    <Frequency>300</Frequency>

    <Threshold>1</Threshold>

    <Direction>greater</Direction>

    <NumSamples>4</NumSamples>

  </Configuration>

</UnitMonitor>