这是一个好的多线程服务器设计吗？

[server start]
load/create game state
start game loop on new thread
start listening for udp packets on new thread
while not closing
  listen for new tcp connection
    create new tcp client
    start clients tcp listener on new thread
save game state
exit

[game loop]
  sleep n milliseconds // Should I sleep here or not?
  update game state
  send relevant udp packet updates to client
  every second
    remove timed out clients

[listen for udp]
  on receive, send to correct tcp client to process

[listen for tcp] (1 for each client)
  manage tcp packets