126 lines
No EOL
3 KiB
Groff
126 lines
No EOL
3 KiB
Groff
'\" t
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.\" Title: irqtop
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.\" Author: [see the "AUTHOR(S)" section]
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.\" Generator: Asciidoctor 2.0.20
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.\" Date: 2025-03-18
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.\" Manual: User Commands
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.\" Source: util-linux 2.41
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.\" Language: English
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.\"
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.TH "IRQTOP" "1" "2025-03-18" "util\-linux 2.41" "User Commands"
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.ss \n[.ss] 0
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.nh
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.ad l
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.de URL
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\fI\\$2\fP <\\$1>\\$3
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..
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.als MTO URL
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.if \n[.g] \{\
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. mso www.tmac
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. am URL
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. ad l
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. .
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. am MTO
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. ad l
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. .
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. LINKSTYLE blue R < >
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.\}
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.SH "NAME"
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irqtop \- utility to display kernel interrupt information
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.SH "SYNOPSIS"
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.sp
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\fBirqtop\fP [options]
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.SH "DESCRIPTION"
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.sp
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Display kernel interrupt counter information in \fBtop\fP(1) style view.
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.sp
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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 \fB\-\-output\fP.
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.SH "OPTIONS"
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.sp
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\fB\-o\fP, \fB\-\-output\fP \fIlist\fP
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.RS 4
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Specify which output columns to print. Use \fB\-\-help\fP to get a list of all supported columns. The default list of columns may be extended if list is specified in the format \fI+list\fP.
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.RE
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.sp
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\fB\-c\fP, \fB\-\-cpu\-stat\fP \fImode\fP
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.RS 4
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Show per\-cpu statistics by specified mode. Available modes are: \fBauto\fP, \fBenable\fP, \fBdisable\fP. The default option \fBauto\fP 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 statistics.
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.RE
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.sp
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\fB\-C\fP, \fB\-\-cpu\-list\fP \fIlist\fP
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.RS 4
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Specify cpus in list format to show.
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.RE
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.sp
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\fB\-d\fP, \fB\-\-delay\fP \fIseconds\fP
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.RS 4
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Update interrupt output every \fIseconds\fP intervals.
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.RE
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.sp
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\fB\-s\fP, \fB\-\-sort\fP \fIcolumn\fP
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.RS 4
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Specify sort criteria by column name. See \fB\-\-help\fP output to get column names. The sort criteria may be changes in interactive mode.
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.RE
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.sp
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\fB\-S\fP, \fB\-\-softirq\fP
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.RS 4
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Show softirqs information.
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.RE
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.sp
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\fB\-t\fP, \fB\-\-threshold\fP \fImin\fP
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.RS 4
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Only show IRQs with counters above the specified threshold. Human readable values are supported (e.g. 1.2K).
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.RE
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.sp
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\fB\-h\fP, \fB\-\-help\fP
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.RS 4
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Display help text and exit.
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.RE
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.sp
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\fB\-V\fP, \fB\-\-version\fP
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.RS 4
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Display version and exit.
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.RE
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.SH "INTERACTIVE MODE KEY COMMANDS"
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.sp
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\fBi\fP
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.RS 4
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sort by short irq name or number field
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.RE
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.sp
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\fBt\fP
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.RS 4
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sort by total count of interrupts (the default)
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.RE
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.sp
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\fBd\fP
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.RS 4
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sort by delta count of interrupts
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.RE
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.sp
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\fBn\fP
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.RS 4
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sort by long descriptive name field
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.RE
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.sp
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\fBq Q\fP
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.RS 4
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stop updates and exit program
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.RE
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.SH "AUTHORS"
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.sp
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.MTO "pizhenwei\(atbytedance.com" "Zhenwei Pi" ","
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.MTO "kerolasa\(atiki.fi" "Sami Kerola" ","
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\c
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.MTO "kzak\(atredhat.com" "Karel Zak"
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.MTO "robin\(atjarry.cc" "Robin Jarry" ""
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.SH "REPORTING BUGS"
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.sp
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For bug reports, use the \c
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.URL "https://github.com/util\-linux/util\-linux/issues" "issue tracker" "."
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.SH "AVAILABILITY"
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.sp
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The \fBirqtop\fP command is part of the util\-linux package which can be downloaded from \c
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.URL "https://www.kernel.org/pub/linux/utils/util\-linux/" "Linux Kernel Archive" "." |