Re: [Mldonkey-users] Protocol efficiency

[Christian H. Kuhn]

Hi Goswin,

& Goswin Brederlow <address@hidden> [2002-11-28 20:55]:
> "Christian H. Kuhn" <address@hidden> writes:
> Its a problem of dsl and tcp/ip.
[very good explanation snipped]

Your explanation gives the cause of the general inefficiency of the
donkey protocol. It does not explain the difference between eMule
and mldonkey.

> So what can one do?
> 
> 1.) Limit the upload to 4 KB/s for each donkey. Don't have more than
> 12 KB/s upload alltogether. The ACKs need some bandwith too so 4+4
> does make 12 given enough downloads.

This can be done. But IIRC there is an automatic download limit when
the upload is limited below 10 kB?
 
> 2.) Use QoS (Quality of Service) alias "Fair" Scheduling.  You can
> resort waiting frames so ACKs can skip to the front of the line. You
> can also limit the upload generated by mldonkey to say 8KB/s
> alltogether for all clients so there is enough for irc, web, mail,
> ftp. You can schedule the traffic so that mldonkey only gets bandwith
> thats not used up otherwise, usw.

AFAIK QoS is not really available in 2.4.19. And i can't afford being
a beta tester. But i remember an article about bandwith limitation in
c't ... when 2.4.20 is available, i'll try it.

thx a lot

Kind regards,
Chris