SourceTV and HLTV CPU usage

[Terrorkarotte]

I know there is exact usage. But I would like to know if anyone knows the average CPU usage of SourceTV and HLTV. I am talking about the relay server you can connect to a gameserver and not the intigrated tv.

Bandwidth usage is easy to limit and estimate with the tv_rate cvar.

But with cpu it is different:
For sourcTV there is tv_snapshotrate. I guess something similar to tickrate?
But how man slots can a modern core handle? Most leagues force a snapshotrate of 24 (16 default). A rough estimate for playerslots is 30-40 per modern cpu core. With SourceTV it must be higher?!

I found this cvars/cmds for hltv:
- fullupdateinterval
- maxframes
- cachesize

I guess the have an impact on cpu usage?

It would be nice if somebody could clear things up a bit.

[BehaartesEtwas]

you can host much more sourcetv slots than normal game slots. it depends also strongly whether you have tv_transmitall 1 or 0. sorry, I don't have exact numbers, as I never got even close to some limit there. an educated guess would be you can host 10 times more slots than usual (maybe 5 or 20... I dunno; also transmitall will make a factor of 2 or so). usually I run the srctv server with a lower priority (or with no realtime/fifo scheduling at all) so it doesn't disturb the normal game server when running on the same machine.

[Terrorkarotte]

I am thinking of expending server4lau to offer also tv servers. I could achive that with minimal adjustments in my code.
But before I do so I would like to know how much cpu is needed.

[BehaartesEtwas]

I think to be sure you will have to try it out. Start with low limits (i.e. allow only one or two servers with not so many slots) and have them running with a lower priority than the normal game servers. Then you can see how much the load increases and carefully raise the limits. (btw: look at the load from the uptime command, I think it's more reliable)