Dynamic Threshold

Islam, Amreen Nahid 21

How is the dynamic threshold calculated for CPU monitoring on azure VMS? What is the logic behind it?

vipullag-MSFT 26,391 Reputation points

2020-12-14T13:34:03.087+00:00

@Islam, Amreen Nahid

Dynamic Thresholds continuously learns the data of the metric series and tries to model it using a set of algorithms and methods. It detects patterns in the data such as seasonality (Hourly / Daily / Weekly), and is able to handle noisy metrics (such as machine CPU or memory) as well as metrics with low dispersion (such as availability and error rate).

This information is documented in this FAQ document. Hope this information is helpful.

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vipullag-MSFT 26,391 Reputation points

2020-12-14T15:02:00.787+00:00

@Islam, Amreen Nahid

Yes, your understanding is correct. The same is illustrated in the same document Interpreting Dynamic Threshold charts which has details on how the threshold are set and the alerts are fired and resolved.

Hope this helps clarify your query.

Please 'Accept as answer' if it helped, so that it can help others in the community looking for help on similar topics.
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Islam, Amreen Nahid 21 Reputation points

2020-12-14T13:42:49.33+00:00

Does that mean if my average CPU usage is around 10 % - 12%, using dynamic threshold, the threshold will be calculated around 10 -12 % right? and alerts will be thrown at this threshold only
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