Re: [PHP] PHP telnet server

On Wed, 2008-12-31 at 17:35 +0100, Per Jessen wrote:
ceo@xxxxxxxxx wrote:


I often thought PHP would be a nice language for a MUD, if one could
get the performance out of it...

Design your code such that you can just throw more hardware at it
whenever you need more performance.

That's easily said, but a MUD means all the users have to share a
significant portion of your data model.

That's fine - there are many well-known schemes for distributing and
updating such data.

Though I suspect the bandwidth issue would be the main bottleneck most
of the time...
I don't want to get into this in much detail, mainly because I've
spent all of 5 minutes seriously thinking about it, and may just need
more bake-time...
But it's not ALWAYS that easy to architect something to be
"shared-nothing" even with PHP.

It's not easy in any language, but if your key concern is the
performance of PHP (as a language), hardware is what you need. You can
design your software to run on a single box with lots of CPU cores, or
you can go for a distributed (and more easily scalable) approach. If
you don't need/want straight scalability, go for the 32 cores all
ticking at 3GHz. Once that is saturated, buy another one.

If you go multi core then you need to go with a threaded approach...
which makes the development a bit complex for newbies to MUD
development. I don't think I'd go distributed since people whine about
lag that takes a 1/4 second... distributed would inherently require more
time while messages are passed to and fro.

Cheers,
Rob.
--
http://www.interjinn.com
Application and Templating Framework for PHP

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