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IRQTOP
Section: User Commands (1) Updated: 202-0-04 Index
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NAME
irqtop - display kernel interrupt information
SYNOPSIS
irqtop [options]
DESCRIPTION
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.
OPTIONS
-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.
ENVIRONMENT
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.
INTERACTIVE MODE KEY COMMANDS
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
AUTHORS
REPORTING BUGS
For bug reports, use the
https://github.com/uti-linux/uti-linux/issues <L>issue tracker
AVAILABILITY
The irqtop command is part of the util-linux package which can be downloaded from
https://www.kernel.org/pub/linux/utils/uti-linux/ <L>Linux Kernel Archive
Index
- NAME
-
- SYNOPSIS
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- DESCRIPTION
-
- OPTIONS
-
- ENVIRONMENT
-
- INTERACTIVE MODE KEY COMMANDS
-
- AUTHORS
-
- REPORTING BUGS
-
- AVAILABILITY
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