DOKK / manpages / debian 12 / systemtap-doc / probe::ioscheduler.elv_next_request.3stap.en
PROBE::IOSCHEDULER(3stap) IO Scheduler and block IO Taps PROBE::IOSCHEDULER(3stap)

probe::ioscheduler.elv_next_request - Fires when a request is retrieved from the request queue

ioscheduler.elv_next_request 

name

Name of the probe point

elevator_name

The type of I/O elevator currently enabled

tapset::ioscheduler(3stap)

November 2022 SystemTap Tapset Reference