CPU Hot-Plugging - 2020.2 English

You may take one or more APU cores on-line and off-line as needed using the CPU Hot-plug control interface. The required kernel configurations are as follows:

• Kernel Features
  • [*] Support for hot-pluggable CPUs

For example, to take CPU1 off-line, run the following command:

echo 0 > /sys/devices/system/cpu/cpu1/online

For more information, refer to the following resources:

• https://www.kernel.org/doc/Documentation/cpu-hotplug.txt
• http://lxr.free-electrons.com/source/Documentation/devicetree/bindings/arm/idle-states.txt