79 lines
1.7 KiB
Groff
79 lines
1.7 KiB
Groff
.TH IRQTOP "1" "February 2020" "util-linux" "User Commands"
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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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.B irqtop
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[options]
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.SH DESCRIPTION
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Display kernel interrupt counter information in
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.BR top (1)
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style view.
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.PP
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The default output is subject to change. So whenever possible, you should
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avoid using default outputs in your scripts. Always explicitly define
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expected columns by using
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.BR \-\-output .
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.SH OPTIONS
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.TP
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.BR \-o , " \-\-output " \fIlist\fP
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Specify which output columns to print. Use
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.B \-\-help
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to get a list of all supported columns. The default list of columns may be
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extended if list is specified in the format
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.IR +list .
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.TP
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.BR \-d , " \-\-delay " \fIseconds\fP
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Update interrupt output every
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.I seconds
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intervals.
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.TP
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.BR \-s , " \-\-sort " \fIcolumn\fP
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Specify sort criteria by column name. See
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.B \-\-help
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output to get column names. The sort criteria may be changes in interactive
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mode.
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.TP
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.BR \-S , " \-\-softirq "
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Show softirqs information.
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.TP
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.BR \-V ", " \-\-version
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Display version information and exit.
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.TP
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.BR \-h ,\ \-\-help
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Display help text and exit.
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.SH INTERACTIVE MODE KEY COMMANDS
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.PD 0
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.TP
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.B i
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sort by short irq name or number field
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.TP
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.B t
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sort by total count of interrupts (the default)
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.TP
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.B d
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sort by delta count of interrupts
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.TP
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.B n
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sort by long descriptive name field
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.TP
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.B q Q
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stop updates and exit program
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.PD 1
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.SH AUTHORS
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.MT pizhenwei@\:bytedance.com
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Zhenwei Pi
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.ME
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.br
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.MT kerolasa@\:iki.fi
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Sami Kerola
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.ME
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.br
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.MT kzak@\:redhat.com
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Karel Zak
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.ME
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.SH AVAILABILITY
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The irqtop command is part of the util-linux package and is available from
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.UR https://\:www.kernel.org\:/pub\:/linux\:/utils\:/util-linux/
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Linux Kernel Archive
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.UE .
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