Maximum websocket connections active at a time?

Hi,

While experimenting with websockets (ABAP Push Channels) I noticed the following in transaction SMICM.

I had 3 applications open which were using websockets, it permanently showed the connections while those applications are open, which is what I would have expected since the connection is active and waiting for a message to be broadcast.

However I noticed that on this particular system the maximum connections is set to 500.

What would that maximum be on a Production system, and is it possible to increase that without any issues?

Are there any performance implications if the active websocket connections starts going into the thousands? Say 10 000 or more?

Cheers,

Brad