DOKK / manpages / debian 12 / systemtap-doc / probe::ioscheduler_trace.unplug_io.3stap.en
PROBE::IOSCHEDULER_T(3stap) IO Scheduler and block IO Taps PROBE::IOSCHEDULER_T(3stap)

probe::ioscheduler_trace.unplug_io - Fires when a request queue is unplugged;

ioscheduler_trace.unplug_io 

name

Name of the probe point

rq_queue

request queue

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)

November 2022 SystemTap Tapset Reference