irqtop - display kernel interrupt information
Display interrupt-counter information from the kernel in the style
of top(1).
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.
-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.
-b, --batch
Send the produced tables to stdout instead of to a static
screen. This can be used for sending the output to other programs or to a
file.
-c, --cpu-stat when
Whether to show the per-CPU statistics. Possible
arguments are: auto, never, always. The default is
auto: the per-CPU statistics are shown when the window is wide enough
for the full list of CPUs.
-C, --cpu-list list
Specify cpus in list format to show.
-d, --delay seconds
Update the tables every this number of
seconds.
-J, --json
Use JSON output format. Implies --batch.
-n, --iter number
Specifies the maximum iterations before quitting.
-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.
-t, --threshold min
Only show IRQs with counters above the specified
threshold. Human readable values are supported (e.g. 1.2K).
-h, --help
Display help text and exit.
-V, --version
Display version and exit.
LIBSMARTCOLS_DEBUG=all
enables libsmartcols debug output.
LIBSMARTCOLS_DEBUG_PADDING=on
use visible padding characters.
LIBSMARTCOLS_JSON=compact|lines
Controls JSON output format when using --json.
Supported values are compact for JSON output with minimal whitespace,
and lines for JSON Lines format (one JSON object per line). If unset or
set to any other value, pretty-printed JSON is used.
i
sort by short irq name or number field
t
sort by total count of interrupts (the default)
d
sort by delta count of interrupts
n
sort by long descriptive name field
q Q
stop updates and exit program
Zhenwei Pi <pizhenwei@bytedance.com>, Sami
Kerola <kerolasa@iki.fi>, Karel Zak <kzak@redhat.com>
Robin Jarry <robin@jarry.cc>
For bug reports, use the issue tracker
<https://github.com/util-linux/util-linux/issues>.
The irqtop command is part of the util-linux package which
can be downloaded from Linux Kernel Archive
<https://www.kernel.org/pub/linux/utils/util-linux/>.