def get_loadavg():
  # For more details, "man proc" and "man uptime"
  if platform.system() == "Linux":
    return open('/proc/loadavg').read().strip().split()[:3]
  else:
    command = "uptime"
    process = subprocess.Popen(command, stdout=subprocess.PIPE, shell=True)
    os.waitpid(process.pid, 0)
    output = process.stdout.read().replace(',', ' ').strip().split()
    length = len(output)
    return output[length - 3:length]