CPUCTL(8) System Manager's Manual CPUCTL(8)
cpuctl – program to control CPUs
cpuctl command [arguments]
The cpuctl command can be used to control and inspect the state of CPUs in
The first argument, command, specifies the action to take. Valid commands
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.
cpuctl offline 2
The output should reflect the fact that CPU#2 was taken offline.
Darwin March 18, 2019 Darwin