Performance issues.

Networking & Multiplayer
#1

Hi

I’m trying to get updates from my clients across to the server 4 times a second, and updates from the server to the clients at 1 a second (the max timer resolution atm). The messages from the client to the server are about 44 bytes. SGS is obviously doing some queuing of the messages and here is why I think that.

I ran 2 clients for the first time the other night. I ran up SGS on another box and saw both clients being updated. Then the updates started to get delayed, then it got worse. I closed one client and it took 60 seconds before the SGS logs spat out the ‘client disconnected’ message, in the mean time it carried on with message recieved messages, and the remaining working client continued to get updates for the position of the client that had quit. These were updates sent before it closed, but the effect hadn’t been seen in either client, and here they are, now 60 seconds behind when they were sent. Then 60 seconds after I closed the client, pop, it goes from the other’s view.

I’ve tried it a number of times, and it seems that the longer I run 2 clients for, the further behind the server gets. The implication is that even if I run at 1 tick per second (which seems to solve it) that 8 clients would still kill the server.

Any ideas?

Endolf

#2

You do not get a client diocsonnected message imemdiately on client drop.

This is bcause the client may be failign over.

You only get the message, on both client and server, after the expiration of the time-limited reconnct key.

I need to check what the deault time out is, but 60 secodns DOES seem extreme. The afct ythat your data is backign up is also suspicious.

Im reptty surprised yo uare seeing this back up since we can run thinsg like Shawn’s racign game on our 4100s with no problem.

Can you maybe send me the sample app so we can profile it?

JK

#3

Hi

When I connect with a single client, and run it for a while, then disconnect, it’s immediate, so I don’t think its waiting for a timeout there. It’s all just backed up I think. I’ll upload it somewhere and email you the URL for both server and client.

Endolf