DOKK / manpages / debian 10 / systemtap-doc / probe::ioscheduler_trace.plug.3stap.en
PROBE::IOSCHEDULER_T(3stap) IO Scheduler and block IO Taps PROBE::IOSCHEDULER_T(3stap)

probe::ioscheduler_trace.plug - Fires when a request queue is plugged;

ioscheduler_trace.plug

name

Name of the probe point

rq_queue

request queue

ie, requests in the queue cannot be serviced by block driver.

tapset::ioscheduler(3stap)

October 2018 SystemTap Tapset Reference