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Operating System Total Percent Interrupt Time

Microsoft.Linux.XenServer.6.OperatingSystem.TotalPercentInterruptTime.Monitor (UnitMonitor)

Citrix XenServer 6 Operating System Total Percent Interrupt Time Monitor

Knowledge Base article:

Summary

This monitor checks the Total Percent Interrupt Time for the system. If you receive an alert from this monitor, action can be required in order to bring the system back to an operational state.

Percent Interrupt Time is the time the processor spends receiving and servicing hardware interrupts during sample intervals. This value is an indirect indicator of the activity of devices that generate interrupts, such as the system clock, disk drivers, data communication lines, network interface cards, and other peripheral devices. These devices normally interrupt the processor when they have completed a task or require attention.

Causes

A High % Interrupt Time most often indicates that there is a problem with a hardware device.

Resolutions

The % Interrupt Time counter will not specifically identify the device that is causing a High % Interrupt Time. System log files should be checked to identify device errors.

Element properties:

TargetMicrosoft.Linux.XenServer.6.OperatingSystem
Parent MonitorSystem.Health.PerformanceState
CategoryPerformanceHealth
EnabledTrue
Alert GenerateTrue
Alert SeverityError
Alert PriorityNormal
Alert Auto ResolveTrue
Monitor TypeMicrosoft.Unix.WSMan.Performance.Filtered.Average.Threshold.MonitorType
RemotableTrue
AccessibilityPublic
Alert Message
Total Percentage Interrupt Time is too high
The threshold for the Processor\\% Interrupt Time\_Total performance counter has been exceeded. The value that exceeded the threshold is: {0}.
RunAsDefault

Source Code:

<UnitMonitor ID="Microsoft.Linux.XenServer.6.OperatingSystem.TotalPercentInterruptTime.Monitor" Accessibility="Public" Target="Microsoft.Linux.XenServer.6.OperatingSystem" TypeID="Unix!Microsoft.Unix.WSMan.Performance.Filtered.Average.Threshold.MonitorType" Enabled="true" ParentMonitorID="SystemHealth!System.Health.PerformanceState">

  <Category>PerformanceHealth</Category>

  <AlertSettings AlertMessage="Microsoft.Linux.XenServer.6.OperatingSystem.TotalPercentInterruptTime.AlertMessage">

    <AlertOnState>Error</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>Error</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Data/Context/Value$</AlertParameter1>

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

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

    <OperationalState HealthState="Error" MonitorTypeStateID="OverThreshold" ID="OverThreshold"/>

  </OperationalStates>

  <Configuration>

    <TargetSystem>$Target/Host/Property[Type="Unix!Microsoft.Unix.Computer"]/NetworkName$</TargetSystem>

    <Uri>http://schemas.microsoft.com/wbem/wscim/1/cim-schema/2/SCX_ProcessorStatisticalInformation?__cimnamespace=root/scx</Uri>

    <Filter/>

    <SplitItems>true</SplitItems>

    <Interval>300</Interval>

    <ObjectName>Processor</ObjectName>

    <CounterName>% Interrupt Time</CounterName>

    <InstanceName>_Total</InstanceName>

    <InstanceProperty>//*[local-name()="Name"]</InstanceProperty>

    <Value>$Data///*[local-name()="PercentInterruptTime"]$</Value>

    <Threshold>10</Threshold>

    <NumSamples>5</NumSamples>

  </Configuration>

</UnitMonitor>