Home
  •  

Hyper-V MPE 2019 Virtual TLB Flushes (Non-Optimized Video card)

HyperV.MPE.2019.SRHV.VirtualTLBFlush.Monitor (UnitMonitor)

Knowledge Base article:

Summary

Video card drivers tend to use memory access methods that cause Hyper-V to need to clear out the CPU cache for memory page table mapping a lot. This is an expensive thing to do in Hyper-V at the best of times.

External content

http://blogs.msdn.com/b/virtual_pc_guy/archive/2009/11/16/understanding-high-end-video-performance-issues-with-hyper-v.aspx

Element properties:

TargetMicrosoft.Windows.HyperV.Discovery.ServerRole
Parent MonitorSystem.Health.PerformanceState
CategoryPerformanceHealth
EnabledFalse
Instance NameHyper-V Hypervisor Root Partition
Counter NameVirtual TLB Flush Entires/sec
Frequency1200
Alert GenerateTrue
Alert SeverityMatchMonitorHealth
Alert PriorityNormal
Alert Auto ResolveTrue
Monitor TypeSystem.Performance.ConsecutiveSamplesThreshold
RemotableTrue
AccessibilityPublic
Alert Message
Hyper-V MPE 2019 Alert: Virtual TLB Flushes (Non-Optimized Video card)

Instance {0}
Object {1}
Counter {2}
Has a value {3}
RunAsDefault

Source Code:

<UnitMonitor ID="HyperV.MPE.2019.SRHV.VirtualTLBFlush.Monitor" Accessibility="Public" Enabled="false" Target="MSWinHV2019Dis!Microsoft.Windows.HyperV.Discovery.ServerRole" ParentMonitorID="SHLib!System.Health.PerformanceState" Remotable="true" Priority="Normal" TypeID="SPerf!System.Performance.ConsecutiveSamplesThreshold" ConfirmDelivery="false">

  <Category>PerformanceHealth</Category>

  <AlertSettings AlertMessage="HyperV.MPE.2019.SRHV.VirtualTLBFlush.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>$Target/Host/Property[Type="MSWinLib!Microsoft.Windows.Computer"]/NetworkName$</ComputerName>

    <CounterName>Virtual TLB Flush Entires/sec</CounterName>

    <ObjectName>Hyper-V Hypervisor Root Partition</ObjectName>

    <InstanceName/>

    <AllInstances>true</AllInstances>

    <Frequency>1200</Frequency>

    <Threshold>100</Threshold>

    <Direction>greaterequal</Direction>

    <NumSamples>3</NumSamples>

  </Configuration>

</UnitMonitor>