Provided by: systemtap-doc_2.3-1ubuntu1.4_all bug

NAME

       probe::ioscheduler_trace.unplug_io - Fires when a request queue is unplugged;

SYNOPSIS

       ioscheduler_trace.unplug_io

VALUES

       name
           Name of the probe point

       rq_queue
           request queue

DESCRIPTION

       Either, when number of pending requests in the queue exceeds threshold or, upon expiration of timer that
       was activated when queue was plugged.

SystemTap Tapset Reference                         March 2016                        PROBE::IOSCHEDULER_T(3stap)