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.Dd February 22, 2021
.Dt INTRCTL 8
.Os
.Sh NAME
.Nm intrctl
.Nd program to control interrupts
.Sh SYNOPSIS
.Nm intrctl
.Ar command
.Op Ar options
.Sh DESCRIPTION
The
.Nm
command can be used to control and inspect the state of interrupts
in the system.
.Pp
The first argument,
.Ar command ,
specifies the action to take.
Valid commands are:
.Bl -tag -width XofflineXcpunoX
.It affinity Fl c Ar cpu_index Fl i Ar intrid
set an
.Ar intrid
interrupt's affinity to
.Ar cpu_index .
.It intr Fl c Ar cpu_index
enable to set an interrupt's affinity to
.Ar cpu_index .
If
.Ar cpu_index
is already enabled, this command has no effect.
.It list Oo Fl cz Oc Oo Fl w Ar wait Oc
for each intrid in the system, display interrupt counts per CPU.
The intrid is an interrupt name such as "ioapic0 pin 22" for x86.
.Pp
If
.Fl c
is specified, display compact list with total counts per interrupt,
and CPU affinity as list of CPU indexes.
.Pp
If
.Fl w
is specified then
.Nm
display the data continuously with a
.Ar wait
seconds delay between each iteration.
.Pp
If
.Fl z
is specified then rows with all CPUs having zero interrupts will be skipped.
.It nointr Fl c Ar cpu_index
disable to set an interrupt's affinity to
.Ar cpu_index .
If
.Ar cpu_index
is already disabled, this command has no effect.
.El
.Sh SEE ALSO
.Xr cpuctl 8
.Sh HISTORY
.Nm
first appeared in
.Nx 8.0 .
.Sh AUTHORS
.An Kengo NAKAHARA Aq Mt knakahara@NetBSD.org