Provided by: systemtap-doc_3.1-3ubuntu0.1_all 

NAME
probe::ioscheduler.elv_next_request - Fires when a request is retrieved from the request queue
SYNOPSIS
ioscheduler.elv_next_request
VALUES
elevator_name
The type of I/O elevator currently enabled
name
Name of the probe point
SEE ALSO
tapset::ioscheduler(3stap)
SystemTap Tapset Reference March 2016 PROBE::IOSCHEDULER(3stap)