irqtop(1) — Linux manual page


IRQTOP(1)                     User Commands                    IRQTOP(1)

NAME         top

       irqtop - utility to display kernel interrupt information

SYNOPSIS         top

       irqtop [options]

DESCRIPTION         top

       Display kernel interrupt counter information in top(1) style

       The default output is subject to change. So whenever possible,
       you should avoid using default outputs in your scripts. Always
       explicitly define expected columns by using --output.

OPTIONS         top

       -o, --output list
           Specify which output columns to print. Use --help to get a
           list of all supported columns. The default list of columns
           may be extended if list is specified in the format +list.

       -c, --cpu-stat mode
           Show per-cpu statistics by specified mode. Available modes
           are: auto, enable, disable. The default option auto detects
           the width of window, then shows the per-cpu statistics if the
           width of window is large enough to show a full line of

       -C, --cpu-list list
           Specify cpus in list format to show.

       -d, --delay seconds
           Update interrupt output every seconds intervals.

       -s, --sort column
           Specify sort criteria by column name. See --help output to
           get column names. The sort criteria may be changes in
           interactive mode.

       -S, --softirq
           Show softirqs information.

       -h, --help
           Display help text and exit.

       -V, --version
           Print version and exit.


           sort by short irq name or number field

           sort by total count of interrupts (the default)

           sort by delta count of interrupts

           sort by long descriptive name field

       q Q
           stop updates and exit program

AUTHORS         top

       Zhenwei Pi <>, Sami Kerola
       <>, Karel Zak <>

REPORTING BUGS         top

       For bug reports, use the issue tracker at

AVAILABILITY         top

       The irqtop command is part of the util-linux package which can be
       downloaded from Linux Kernel Archive
       <>. This page
       is part of the util-linux (a random collection of Linux
       utilities) project. Information about the project can be found at
       ⟨⟩. If you have
       a bug report for this manual page, send it to This page was obtained from the
       project's upstream Git repository
       ⟨git://⟩ on
       2023-12-22. (At that time, the date of the most recent commit
       that was found in the repository was 2023-12-14.) 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

util-linux 2.39.594-1e0ad      2023-07-19                      IRQTOP(1)