This app requires ROOT permissions to change settings. By now, this app is only tested using Meizu MX4. It MAY work in other devices. This is a open source software. Project page: What settings can it change? Active cores manually. /proc/hps/enabled. /sys/devices/system/cpu/cpu /online. Minimum numbers of online big and little cores. /proc/hps/num_base_perf_serv.