Reference

cpuctl(8)

program to control CPUs

NAME

cpuctl – program to control CPUs

SYNOPSIS

cpuctl command [arguments]

DESCRIPTION

The cpuctl command can be used to control and inspect the state of CPUs in the system.

The first argument, command, specifies the action to take. Valid commands are:

list

For each CPU in the system, display the current state and time of the last state change.

offline cpu [cpu ...]

Set the specified CPUs off line.

At least one CPU in the system must remain on line.

online cpu [cpu ...]

Set the specified CPUs on line.

EXAMPLES

Run

cpuctl offline 2

and then

cpuctl list

The output should reflect the fact that CPU#2 was taken offline.