Dynamic Thresholds

16 minutes ago, Stuart Weenig said:

The dynamic threshold visualization isn't smart enough to know that the metric can't/won't go above 100%. It's just calculating what the expected value might be based on historical norms. I'd lengthen the timeframe that you're looking at to get a better idea of what the algorithm thinks compared to actual values. You're right though, this particular CPU seems to run hot, so a dynamic threshold would consider 100% utilization "normal". Remember, dynamic thresholds don't tell you what's good vs. what's bad. They tell you what's "normal" vs. "abnormal". If this server normally fluctuates between 50% and 100% all the time, then a current value of 99.9% would be considered "normal" and wouldn't trigger an alert.

Ah ok, so in this case with CPU usage, it would be best to have it at a static threshold, that may need to be tuned per instance to a level to reduce noise

Thanks