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Home > Success Center > Server & Application Monitor (SAM) > SAM - Knowledgebase Articles > AppInsight for SQL: CPU usage is at 100%

AppInsight for SQL: CPU usage is at 100%


The CPU usage is at 100%.


All SAM versions 
Monitoring versions below Cumulative update package 5 for SQL Server 2005 Service Pack 3
Monitoring SQL server Cumulative update package 7 for SQL Server 2008


The execution of a command in Appinsight for SQL Server for the component item SQL Event Log Monitor exec xp_readerrorlog stops responding and the usage of the CPU that is running the command increases to 100 percent. This is a known Microsoft issue.


Apply the Microsoft hotfix located at:



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