The system event CPU Utilization is based on the system-wide average of node CPU percent busy on the TASM/TIWM event interval. CPU Utilization indicates whether the system can do more work or if it is at peak capacity.
- If sustained system CPU > 95% for 15 minutes: Set the health condition to Yellow, which reduces lower-priority workload throttle limits.
- If sustained CPU < 50% (low system CPU utilization) for 20 minutes: Send a Post to QTable:notification to DBC.SystemQTbl to tell applications to execute background-type work.
Teradata recommends using the Averaging qualification to distinguish between temporary and persistent utilization. Averaging smooths out the peaks and valleys of CPU utilization patterns typical during a week.