---
name: "lsirq"
section: "1"
platform: "linux"
package: "util-linux"
version: "2.42.4-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/lsirq"
---

# lsirq(1)

utility to display kernel interrupt information

## NAME

lsirq - utility to display kernel interrupt information

## SYNOPSIS

**lsirq** \[options\]

## DESCRIPTION

Display kernel interrupt counter information.

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

- **-n**, **--noheadings**

  Don’t print headings.

- **-i**, **--input** *file*

  Read data from *file* (Which was created by other tools, e.g. [**sosreport**(1)](/sosreport/1.md)).

- **-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*.

- **-s**, **--sort** *column*

  Specify sort criteria by column name. See **--help** output to get column names.

- **-J**, **--json**

  Use JSON output format.

- **-P**, **--pairs**

  Produce output in the form of key="value" pairs. All potentially unsafe characters are hex-escaped (\\x\<code\>).

- **-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).

- **-C**, **--cpu-list** *list*

  Only show interrupt counters on the specified CPU list.

- **-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.

## AUTHORS

*Zhenwei Pi* \<pizhenwei@bytedance.com\>, *Sami Kerola* \<kerolasa@iki.fi\>, *Karel Zak* \<kzak@redhat.com\>, *Robin Jarry* \<robin@jarry.cc\>

## REPORTING BUGS

For bug reports, use the *issue tracker* \<https://github.com/util-linux/util-linux/issues\>.

## AVAILABILITY

The **lsirq** 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/\>.