Here is the snippet of the file "/sys/devices/system/cpu/cpu0/core_ctl/global_state"

Here is the snippet of the file "/sys/devices/system/cpu/cpuX/core_ctl/global_state"

    CPU0
    CPU: 0
    Online: 1
    Isolated: 0
    First CPU: 0
    Busy%: 0
    Is busy: 0
    Not preferred: 0
    Nr running: 0
    Active CPUs: 2
    Need CPUs: 2
    Nr isolated CPUs: 2
    Boost: 0

What do the Busy% indicate can anyone explain?
Is the busy% accurate?