Hi,
you use future_timespan=70, which means 70 * 5 min is predicted into the future, since you are calculating 5min buckets with timechart. Also you have configured holdback=30, which means you are not using the last 30*5min for your prediction. If you just want to predict more points in future increase future_timespan and do not use holdback.
For an even better prediction, try out the new algorithm in the machine learning toolkit "StateSpaceForecast".
You can see an example of usage here: https://www.splunk.com/blog/2019/03/20/what-s-new-in-the-splunk-machine-learning-toolkit-4-2.html
In short, it makes better use of seasonal pattern, like weekends, holidays, time of the day. Which is typically applicable for CPU usage.
Greetings
Tom
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