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9.5. Initializing queue statistics
The queue_stats tapset provides functions that, when given notification of queuing events like wait, run, or done, track averages such as queue length, service and wait times, and utilization. Call the following three functions from appropriate probes, in sequence.
9.5.1. qs_wait
General syntax:
qs_wait:unknown (qname:string)
This function records that a new request was enqueued for the given queue name.
