PROBE::IOSCHEDULER(3stap) IO Scheduler and block IO Taps PROBE::IOSCHEDULER(3stap)

probe::ioscheduler.elv_add_request.tp - tracepoint based probe to indicate a request is added to the request queue.

ioscheduler.elv_add_request.tp

disk_minor

Disk minor number of request.

rq

Address of request.

rq_flags

Request flags.

disk_major

Disk major no of request.

elevator_name

The type of I/O elevator currently enabled.

q

Pointer to request queue.

name

Name of the probe point

tapset::ioscheduler(3stap)

November 2023 SystemTap Tapset Reference