tapset::ioscheduler.3stap man page

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)

Info

March 2016 SystemTap Tapset Reference