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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.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)
May 2021 SystemTap Tapset Reference