02-14-2007
do a:
setenv auto-boot? false
reset-all
probe-scsi-all
probe-ide
and post the output of the last two commands!
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LEARN ABOUT CENTOS
tapset::ioscheduler
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)
IBM
--- tapset::ioscheduler(3stap)