Well the current system runs of a 20MB internet connection in London,
seeing as that's the UK that about 2MB.
It runs fine, responses are snappy even dealing with loads of users.
This, however, is written in C: does PHP have that much of an overhead so
that bandwidth is actually that much of an issue?
On Thu, 1 Jan 2009, Per Jessen wrote:
Robert Cummings wrote:
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.
'ceo@xxxxxxxxx' doesn't seem like a newbie to me, but you're right, it
would be a complex job for a newbie. Nevertheless, given todays
machines where even laptops have multiple cores, I would certainly
design any new performance-critical application for multi-threading.
(Multi-threading in PHP is a challenge in itself, and I wouldn't choose
PHP for such a job, but that's a different story).
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.
That is perhaps a valid consideration, but isn't it easily dealt with by
using gigabit ethernet or infiniband or something similar?
The distributed vs. one big monolith discussion is also a matter of
space, cooling, electricity etc. The big monolith is easier to deal
with, but also carries a different pricetag. The many machines can be
gradually expanded at a lower cost, but need much more in terms of
infrastructure.
/Per Jessen, Zürich
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