[mohaa] Server Requirements

[monthos at mx3.org]

"My uplink is 768kbps (kil bits per second) which I think is about 768/8
= 96KBps (Kilo Bytes per second)"

that figure is slightly off becouse your not compensating for overhead by
the protocol, so assume around a 76-80 Kps real world connection.

If your assumeing 3KByte a second per client, your grossly underestimating
it. my clients on my servers typically pull 7 to 10Kbytes/sec each.

your milage may vary, but this has been my finding on data throughput and
theoretical limits on several occasions.


On Tue, 22 Apr 2003, Eduardo E. Silva wrote:

>
> Eric Koldeweij said:
> > Some remarks:
> >
> > Eduardo E. Silva wrote:
> >
> >>4.- I have never gone past 40k bytes per second (upstream) EVEN with 11
> >>players.
> >>
> > Of course not, your uplink cannot handle more :)
>   My uplink is 768kbps (kil bits per second) which I think is about 768/8
> = 96KBps (Kilo Bytes per second). So I still have about 40KB left for
> band width.
>
> I have measured my bandwidth to be about 3KB-4KB on a 100mbps LAN hooked
> to a switch with the server -- both are in full duplex mode. When I do a
> status with RCON my PC's rate shows to be 30000. Is this is in bits or
> bytes ? If it is bits, then 30000/8 = 3750 which reflects the measurement
> of 3KB-4KB I did above.
>
> Assuming a *cough* 'perfect' connection from clients to my server on the
> cable modem. 768kbps/30kbps = 25 players -- 'MAX'.
>
> >
> >>question for Ryan:
> >>
> >> Why does MOHAA pumps more thru the upstream than down stream ? It seems
> >>like for every byte it receives it send two. If this the way it is or is
> >>it a 'bug' ?
> >>
> > If you think hard enough you will find the answer yourself........
> >
> > No?
> >
> > Ok here it is.
> >  From server point of view, the downstreams are clients.  Each client
> > needs to transfer just a little bit to the server, namely the client's
> > deltas (changes in movement, position etc) But the server needs to send
> > the deltas of ALL players/clients back to EACH client. If they hadn't
> > built in tricks you'd have 20 times more upstream than downstream (on a
> > 20-player server). Consider yourself lucky they managed to bring it down
> > to 2:1 :)
> >
> > Eric.
> >
>
> Pretty lucky indeed...;)
>
> --
> Thanks,
>
> Ed Silva
> Silvex Consulting Inc.
> esilva at silvex.com
> (714) 504-6870 Cell
> (714) 897-3800 Fax
>
>