_cpu_utils.py 文件源码

def set_highest_priority():
    try:
        import psutil
    except ImportError:
        return

    proc = psutil.Process()
    if not hasattr(proc, 'nice'):
        return

    # Want to set realtime on Windows.
    # Fail hard for anything else right now, so it is obvious what to fix
    # when adding other OS support.
    try:
        proc.nice(psutil.REALTIME_PRIORITY_CLASS)
        return True
    except psutil.AccessDenied:
        pass