RZ-G/RZG2 kernel

RZ/G2 Kernel and Linux FAQ

= CPU Hotplug = You can enable and disable CPU cores by wrriting to a sysfs value. This is helpful for when you want to experiment with the performance of your application if you were to use a processor with less CPU cores.

For example, this command will disable the 2nd core.

More detailed information can be found here: https://www.cyberciti.biz/faq/debian-rhel-centos-redhat-suse-hotplug-cpu