I have a client/server scenario with ENet driving an RTS deterministic simulation. The server is an Ubuntu Linux Server, Client is a Macbook Pro. The server sends a reliable packet to each client (only 1 right now) 10 times a second. The client can send commands to the server but is not needed to reproduce the problem.
I can packet sniff with Wireshark on the client to verify there are about 11 packets/second from server->client (56 bytes each) and about 11 packets sent back from client->server (52 bytes each, I'm assuming these are the ACKs). The problem is the simulation runs fine for anywhere from 30 seconds to 10 minutes... but eventually I get a stall of 3-5 seconds where no packets are received from the server. The client-side simulation runs out of Turns to process and is forced to freeze. Finally I get the expected packets in bulk and the simulation recovers. This will happen every so often until eventually it is so bad (7-10 seconds, multiple stalls in a row) that the server disconnects the client. Originally I was sending 20 packets per second.. and I turned it down to 10 but it didnt really help. I have tried hosting on different servers... and running the client from within different networks, same problem. However, the problem does NOT show up when I host a LAN server on another Mac on the same subnet. I have debugged as much as I can and I am sure the server is *trying* to send the packets... they are just getting stalled in the network somewhere. When I ping the server during one of these timeouts... my pings also timeout... so It's definitely some kind of network issue. The bandwidth seems overloaded but I have no clue that it's going to stall until I lose connection for 4 seconds. I have 0% packet loss with the ENET_DEBUG output until I stall, then it's like 2% packet loss. So my questions are: -What is happening? I am always using broadband internet, I am sure I am not exceeding my bandwidth. -From what I've read it sounds like I am congesting my router or something.. but how can this happen with only 10 packets/s each way at 56 bytes each? -How can I debug this with ENet? How can I find out where the problem lies? Thank you to anyone who can help me with this. I'm pulling my hair out trying to debug it. _______________________________________________ ENet-discuss mailing list [email protected] http://lists.cubik.org/mailman/listinfo/enet-discuss
