TAPSET::IOSCHEDULER(3stap)

NAME
tapset::ioscheduler - systemtap ioscheduler tapset

DESCRIPTION

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

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

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

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

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

ioscheduler.elv_completed_request
    Fires when a request is completed

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

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

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

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

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

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

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

ioscheduler_trace.elv_completed_request
    Fires when a request is

     See probe::ioscheduler_trace.elv_completed_request(3stap)
     for details.

ioscheduler_trace.elv_issue_request
    Fires when a request is

     See probe::ioscheduler_trace.elv_issue_request(3stap)
     for details.

ioscheduler_trace.elv_requeue_request
    Fires when a request is

     See probe::ioscheduler_trace.elv_requeue_request(3stap)
     for details.

ioscheduler_trace.elv_abort_request
    Fires when a request is aborted.

     See probe::ioscheduler_trace.elv_abort_request(3stap)
     for details.

ioscheduler_trace.plug
    Fires when a request queue is plugged;

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

ioscheduler_trace.unplug_io
    Fires when a request queue is unplugged;

     See probe::ioscheduler_trace.unplug_io(3stap)
     for details.

ioscheduler_trace.unplug_timer
    Fires when unplug timer associated

     See probe::ioscheduler_trace.unplug_timer(3stap)
     for details.

SEE ALSO
probe::ioscheduler.elv_next_request(3stap), probe::ioscheduler.elv_next_request.return(3stap), probe::ioscheduler.elv_completed_request(3stap), probe::ioscheduler.elv_add_request.kp(3stap), probe::ioscheduler.elv_add_request.tp(3stap), probe::ioscheduler.elv_add_request(3stap), probe::ioscheduler_trace.elv_completed_request(3stap), probe::ioscheduler_trace.elv_issue_request(3stap), probe::ioscheduler_trace.elv_requeue_request(3stap), probe::ioscheduler_trace.elv_abort_request(3stap), probe::ioscheduler_trace.plug(3stap), probe::ioscheduler_trace.unplug_io(3stap), probe::ioscheduler_trace.unplug_timer(3stap), stap(1), stapprobes(3stap)