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Resource Model Reference


Thresholds

The following table lists the thresholds that can be set for the Processor resource model. For each threshold it shows the name, a short description, and the default value:

Threshold Description Default
High CPU Usage (HighCPUUsage) This threshold indicates when a high percent of the CPU is being used. CPUs are expected to reach 100% marks quite often, but generally not expected to sustain that rate for an extended amount of time. 80
High CPU Usage Interrupt (HighCPUUsageInterrupt) This threshold indicates when a high percent of the CPU is being used for interrupt requests, generally made by hardware devices. 20
High CPU Usage Process (HighCPUUsageProcess) This threshold indicates the maximum percent of CPU usage for a single process allowed. 40
High CPU Usage User Privilege (HighCPUUsageUserPriv) This threshold indicates the maximum percent of CPU usage by all the processes running. This value is obtained by adding the percent user time and the percent privileged time 70
High Interrupts per Second (HighInterruptsSec) This threshold indicates the maximum rate at which the devices installed on the system are accessing the CPU (interrupts per second) 600
High Percent Usage Delta (HighPercentUsageDelta) This threshold indicates the difference in percentage usage between the highest used CPU and the lowest used CPU. 5
Total CPUs Modifier (TotalCPUsMod) This threshold is a modifier that is added to the total number of CPUs in the system. The result is the threshold that determines when the queue for the systems processors is too long.The processor queue length is the instantaneous length of the processor queue in units of threads. All processors use a single queue in which threads wait for processor cycles. This length does not include the threads that are currently running. 10


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