service update_engine /system/bin/update_engine --logtostderr --foreground
    class late_start
    user root
    group root system wakelock dbus inet cache

    writepid /dev/cpuctl/update_engine/tasks

on post-fs
    # update_engine
    mkdir /dev/cpuctl/update_engine
    chown system system /dev/cpuctl/update_engine/tasks
    chmod 0666 /dev/cpuctl/update_engine/tasks
    write /dev/cpuctl/update_engine/cpu.shares 1024
    write /dev/cpuctl/update_engine/cpu.rt_runtime_us 700000
    write /dev/cpuctl/update_engine/cpu.rt_period_us 1000000