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probe::ioscheduler_trace.unplug_io − Fires when a request queue is unplugged;
ioscheduler_trace.unplug_io
rq_queue
request queue
name
Name of the probe point
Either, when number of pending requests in the queue exceeds threshold or, upon expiration of timer that was activated when queue was plugged.
tapset::ioscheduler(3stap)