Answer by warren for Calculating event throughput in splunk

Use timechart:

index=myIndex namespace=myNamespace host=myHost log=\*EVENT_PROCESSED*
| timechart span=1h count(EVENT_PROCESSED) as count

from User warren – Stack Overflow https://stackoverflow.com/questions/63115125/calculating-event-throughput-in-splunk/63116119#63116119
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