TAPSET::IOSCHEDULER(3stap) TAPSET::IOSCHEDULER(3stap)

NAME
       tapset::ioscheduler - systemtap ioscheduler tapset


DESCRIPTION
        This family of probe points is used to probe IO scheduler activities.



       ioscheduler.elvnextrequest
              Fires when a request is retrieved from the request queue

               See probe::ioscheduler.elvnextrequest(3stap)
               for details.

       ioscheduler.elvnextrequest.return
              Fires when a request retrieval issues a return signal

               See probe::ioscheduler.elvnextrequest.return(3stap)
               for details.

       ioscheduler.elvcompletedrequest
              Fires when a request is completed

               See probe::ioscheduler.elvcompletedrequest(3stap)
               for details.

       ioscheduler.elvaddrequest.kp
              kprobe  based  probe to indicate that a request was added
              to the request queue

               See probe::ioscheduler.elvaddrequest.kp(3stap)
               for details.

       ioscheduler.elvaddrequest.tp
              tracepoint based probe to indicate a request is added  to
              the request queue.

               See probe::ioscheduler.elvaddrequest.tp(3stap)
               for details.

       ioscheduler.elvaddrequest
              probe to indicate request is added to the request queue.

               See probe::ioscheduler.elvaddrequest(3stap)
               for details.

       ioschedulertrace.elvcompletedrequest
              Fires when a request is

               See                    probe::ioschedulertrace.elvcom‐
              pletedrequest(3stap)
               for details.

       ioschedulertrace.elvissuerequest
              Fires when a request is

               See probe::ioschedulertrace.elvissuerequest(3stap)
               for details.

       ioschedulertrace.elvrequeuerequest
              Fires when a request is

               See probe::ioschedulertrace.elvrequeuerequest(3stap)
               for details.

       ioschedulertrace.elvabortrequest
              Fires when a request is aborted.

               See probe::ioschedulertrace.elvabortrequest(3stap)
               for details.

       ioschedulertrace.plug
              Fires when a request queue is plugged;

               See probe::ioschedulertrace.plug(3stap)
               for details.

       ioschedulertrace.unplugio
              Fires when a request queue is unplugged;

               See probe::ioschedulertrace.unplugio(3stap)
               for details.

       ioschedulertrace.unplugtimer
              Fires when unplug timer associated

               See probe::ioschedulertrace.unplugtimer(3stap)
               for details.


SEE ALSO
                 probe::ioscheduler.elvnextrequest(3stap),
       probe::ioscheduler.elvnextrequest.return(3stap),
       probe::ioscheduler.elvcompletedrequest(3stap),
       probe::ioscheduler.elvaddrequest.kp(3stap),
       probe::ioscheduler.elvaddrequest.tp(3stap),
       probe::ioscheduler.elvaddrequest(3stap),
       probe::ioschedulertrace.elvcompletedrequest(3stap),
       probe::ioschedulertrace.elvissuerequest(3stap),
       probe::ioschedulertrace.elvrequeuerequest(3stap),
       probe::ioschedulertrace.elvabortrequest(3stap),
       probe::ioschedulertrace.plug(3stap),
       probe::ioschedulertrace.unplugio(3stap),
       probe::ioschedulertrace.unplugtimer(3stap),           stap(1),
       stapprobes(3stap)



SystemTap Tapset Reference         June 2018        TAPSET::IOSCHEDULER(3stap)