Collect .NET Statistic/\% of Performance violations/sec

Microsoft.SystemCenter.Apm.Transaction.PerformanceRateMonitor (UnitMonitor)

Collect .NET Statistic/\% of Performance violations/sec performance counter

Knowledge Base article:

Summary

The instance state becomes unhealthy if the rate of performance events per defined time period exceeds the monitor threshold.

Causes

Transaction performance alerts are generated when the rate of performance events exceeds the configured monitor threshold.

Excessively long database calls might be caused by a problem with the database server or with the structure and complexity of the database query. Long file I/O times might be due to problems with the file server. Web Services performance issues might occur because the Web Service or the server it resides on is down or there is a problem in the Web Service code. Long internal execution times for applications might result from complex or inefficient code.

Resolutions

Typical application performance degradation could be caused by a long database call, a long web service call, a slow .NET Remoting call, a slow COM+ call, or inefficient application code.

Element properties:

Target

Microsoft.SystemCenter.Apm.Transaction

Parent Monitor

System.Health.PerformanceState

Category

Custom

Enabled

False

Instance Name

.NET Statistic

Counter Name

\% of Performance violations/sec

Alert Generate

True

Alert Severity

MatchMonitorHealth

Alert Priority

Normal

Alert Auto Resolve

True

Monitor Type

System.Performance.ConsecutiveSamplesThreshold

Remotable

False

Accessibility

Public

Alert Message

.NET Statistic/\% of Performance violations/sec exceeded the threshold

The .NET Statistic/\% of Performance violations/sec performance counter has exceeded the configured threshold of {0}\%. The performance counter value was {1}\%.

RunAs

Default

Source Code:

<UnitMonitor ID="Microsoft.SystemCenter.Apm.Transaction.PerformanceRateMonitor" Accessibility="Public" Enabled="false" Target="Microsoft.SystemCenter.Apm.Transaction" ParentMonitorID="Health!System.Health.PerformanceState" Remotable="false" Priority="Normal" TypeID="Performance!System.Performance.ConsecutiveSamplesThreshold" ConfirmDelivery="false">

  <Category>Custom</Category>

  <AlertSettings AlertMessage="Microsoft.SystemCenter.Apm.Transaction.PerformanceRateMonitor.AlertMessage">

    <AlertOnState>Warning</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>MatchMonitorHealth</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Target/Property[Type="Microsoft.SystemCenter.Apm.TransactionBase"]/PerformanceRateMonitorThreshold$</AlertParameter1>

      <AlertParameter2>$Data/Context/SampleValue$</AlertParameter2>

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

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

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

  </OperationalStates>

  <Configuration>

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

    <CounterName>% of Performance violations/sec</CounterName>

    <ObjectName>.NET Statistic</ObjectName>

    <InstanceName>$Target/Property[Type="Microsoft.SystemCenter.Apm.Transaction"]/CounterInstance$</InstanceName>

    <AllInstances>false</AllInstances>

    <Frequency>$Target/Property[Type="Microsoft.SystemCenter.Apm.TransactionBase"]/PerformanceRateMonitorInterval$</Frequency>

    <Threshold>$Target/Property[Type="Microsoft.SystemCenter.Apm.TransactionBase"]/PerformanceRateMonitorThreshold$</Threshold>

    <Direction>greater</Direction>

    <NumSamples>3</NumSamples>

  </Configuration>

</UnitMonitor>