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Re: irc.debian.org

On Sun, Aug 18, 2002 at 03:09:22PM -0400, David B Harris wrote:
> On Sun, 18 Aug 2002 14:42:13 -0400
> Joey Hess <joeyh@debian.org> wrote:
> >   We already have servers, and bandwidth, and it would seem to could
> >   create a small, stable irc network that could handle our modest load
> >   of ~700 concurrent clients. I don't know how well irc scales; could
> >   a single server handle that load?
> Yeah. You're talking about what we refer to as a 'leaf' node. ie: a
> server that primarily handles end-user traffic.
> Hubs are much less bandwidth-intensive than leaf nodes, because they
> don't have to repeat a message once for each user that receives the
> message (think channels). Leaf nodes will end up replicating a lot of
> messages and sending them out, but it's pretty unavoidable at the
> moment.

It's unavoidable, period. Those clients need to receive the data.

(Other daemons are less discriminate, but dancer-ircd 1.0 almost never
replicates unnecessary messages).

> Anyhoo, a T1 could typically handle that many users without breaking a
> sweat. Hardware-wise, something very modest (think P233 or so) could
> handle it.

That's bottom-end hardware for a server on that scale, even with a
highly efficient daemon.

  .''`.  ** Debian GNU/Linux ** | Andrew Suffield
 : :' :  http://www.debian.org/ | Dept. of Computing,
 `. `'                          | Imperial College,
   `-             -><-          | London, UK

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