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

rq_queue

request queue

name

Name of the probe point

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

tapset::ioscheduler(3stap)

November 2023 SystemTap Tapset Reference