si.py 文件源码

def uptime(self):
        with open('/proc/uptime', 'r') as f:
            uptime, idletime = f.readline().split()
            up_seconds = int(float(uptime))
            idle_seconds = int(float(idletime))
            # in some machine like Linode VPS, idle time may bigger than up time
            if idle_seconds > up_seconds:
                cpu_count = multiprocessing.cpu_count()
                idle_seconds = idle_seconds/cpu_count
                # in some VPS, this value may still bigger than up time
                # may be the domain 0 machine has more cores
                # we calclate approximately for it
                if idle_seconds > up_seconds:
                    for n in range(2,10):
                        if idle_seconds/n < up_seconds:
                            idle_seconds = idle_seconds/n
                            break
            fmt = '{days} ? {hours} ?? {minutes} ? {seconds} ?'
            uptime_string = strfdelta(datetime.timedelta(seconds = up_seconds), fmt)
            idletime_string = strfdelta(datetime.timedelta(seconds = idle_seconds), fmt)
        return {
            'up': uptime_string,
            'idle': idletime_string,
            'idle_rate': div_percent(idle_seconds, up_seconds),
        }