tapset::iosched(3stap) [debian man page]

TAPSET::IOSCHED(3stap)													    TAPSET::IOSCHED(3stap)

NAME

       tapset::iosched - systemtap IO scheduler probe points

DESCRIPTION

       This family of probe points is used to probe the IO scheduler activities.  It contains the following probe points:

       ioscheduler.elv_next_request
	      Fires when retrieves a request from request queue

	      Arguments:

	      elevator_name
		The elevator name

       ioscheduler.elv_next_request.return
	      Fires when return from retrieving a request

	      Arguments:

	      req
		Address of the request

	      req_flags
		request flags

	      disk_major
		disk major number of the request

	      disk_minor
		disk minor number of the request

       ioscheduler.elv_add_request
	      Fires when add a request into request queue

	      Arguments:

	      elevator_name
		The elevator name

	      req
		Address of the request

	      req_flags
		request flags

	      disk_major
		disk major number of the request

	      disk_minor
		disk minor number of the request

       ioscheduler.elv_completed_request
	      Fires when a request is completed

	      Arguments:

	      elevator_name
		The elevator name

	      req
		Address of the request

	      req_flags
		request flags

	      disk_major
		disk major number of the request

	      disk_minor
		disk minor number of the request

SEE ALSO

       stap(1), stapprobes(3stap)

IBM
															    TAPSET::IOSCHED(3stap)

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)