man7.org > Linux > man-pages

Linux/UNIX system programming training

tapset::ioscheduler(3stap) — Linux manual page

NAME | DESCRIPTION | SEE ALSO | COLOPHON 

TAPSET::IOSCHEDULER(3stap)                    TAPSET::IOSCHEDULER(3stap)

NAME         top

       tapset::ioscheduler - systemtap ioscheduler tapset

DESCRIPTION         top

        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         top

       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)

COLOPHON         top

       This page is part of the systemtap (a tracing and live-system
       analysis tool) project.  Information about the project can be
       found at ⟨https://sourceware.org/systemtap/⟩.  If you have a bug
       report for this manual page, send it to [email protected].
       This page was obtained from the project's upstream Git repository
       ⟨git://sourceware.org/git/systemtap.git⟩ on 2024-06-14.  (At that
       time, the date of the most recent commit that was found in the
       repository was 2024-06-13.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       [email protected]

SystemTap Tapset Reference     April 2024     TAPSET::IOSCHEDULER(3stap)

Pages that refer to this page: probe::ioscheduler.elv_add_request(3stap),  probe::ioscheduler.elv_add_request.kp(3stap),  probe::ioscheduler.elv_add_request.tp(3stap),  probe::ioscheduler.elv_completed_request(3stap),  probe::ioscheduler.elv_next_request(3stap),  probe::ioscheduler.elv_next_request.return(3stap),  probe::ioscheduler_trace.elv_abort_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.plug(3stap),  probe::ioscheduler_trace.unplug_io(3stap),  probe::ioscheduler_trace.unplug_timer(3stap)

HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface.

For details of in-depth Linux/UNIX system programming training courses that I teach, look here.

Hosting by jambit GmbH.

Cover of TLPI