Lags when > 20 players

#1 The engine has a built in Profiler that is useful for finding out where your game is spending valuable time. You'll need to add start and end markers around the code sections that concern you. The command is ProfilerEnable();

I think you can also use the NetGraph by pressing N while in the game.
The window will show up in the upper right of the game window. It too, may help you track down the issue.

Last thing I can suggest is the forums here have tips on tweaking the network settings, there are several posts that talk about it, but I don't have those links ready for post here.
Hope that helps.

#2 If you're using T3D 1.1 I think there's an issue with mission bounds reading all Ai/Player movements every tick. You'll have to search the forums for the solution and to see if it is part of your problem.

#3 For reference, here's that issue.

#4 Oh wow, it was one of my own threads! lol.

Edit actually looks like it's not fixed at all in stock :/

#5 Thank you for your attention of my thread.
Your gave very interesting answers!
I think I gave not enough information with my question, so I gonna correct:
We develop a MMOg, and when I say about 20 players I mean 20 real players, who connect to the game server from client.
May be it clarify this situation.
Steve said about a problem with AIPlayer in Torque 1.1. Is this problem corrected in Torque 1.2? We're using Torque 1.1 now. And if this problem was really corrected, we will move to this version.

#6 The problem Steve mentioned exists with AIPlayers, Players and FlyingVehicles, and was not fixed in 1.2, or at least not in the MIT release. However, I submitted the fix, which should be fairly easy to integrate into 1.1 if you don't want to upgrade.

#7 Thank you, Daniel!
I will try today, test and tell about results

#8 It helps!
I placed 100 bots and had 0.8 fps without this fix
Then I inserted this fix and now I have 80 fps