See this discussion on stackoverflow that is about
using Comet and jQuery[
^] in unison. Comet is based on the
Bayeux protocol[
^] and is the reverse of
Ajax[
^]. Whilst Ajax polls the server Comet relies on a standing connection between client and server and the messages are pushed from the server to the client.
This does reduce the traffic a whole lot when there are a large number of clients. Each of them polling the server in intervals of a couple of seconds will put some load onto your machine.
If you still have some questions leave a comment by clicking on "Add comment".
Best Regards,
-MRB