> Maybe so, but they also accomplish the same performance at lower clock
>speeds.
>
>-Simon

This has nothing to do with a server application.   For a server, you want
it to run as cool as possible, and in todays 1u applications, case space
comes at a premium.  Less fans means more room for HD's, Gig-E cards and the
like.  Let us also not forget what one of the main enemies of solid state
electronics is.  HEAT.   Heat speeds up the degradation process and is the
primary factor in electronics failures.  Don't believe me?  Take the Fan off
of your AMD and see what happens.  Yeah, that smoke is a direct result of
things getting to hot.  How do you think the capacitors and diodes on the
motherboard react to the elevated ambient temperatures over a long period of
time?

I know I still have PIII-500's humming away in a datacenter that are almost
5 years old now, and they're running fine.  AMD didn't even launch the
Duron/T-bird series until (late?)2000, and the first year or so was spent
mostly exchanging processors for ones that didn't have crushed cores.  Intel
has proven the test of time.  Not saying today's AMD's won't or can't, but
they just haven't been around long enough yet.

So yes, while they "accomplish the same feats at the same clock speed", they
do it at the cost of added thermal energy.  As someone who's helped to run a
very large datacenter, I can tell you that the difference in temperature
between an Intel and an AMD might not seem like a lot, until you've got 800
of those machines.

Also, Xeons aren't really that expensive anymore.   Go check Pricewatch and
do some comparisons.  Intel is really pushing Itanium as its die-hard server
solution, and Xeons are at a mid-point performance wise, with the price
reflecting that.  I can build a Dual Xeon 3.06 Ghz (Hyperthreaded, of
course) server for cheaper than I can buy a Single AMD Opteron 248.  (Dual
Xeons + mobo cost between 900-1100 dollars depending on mobo, Single Opteron
+ Mobo costs between 1200-1400 dollars depending on the motherboard)  Yeah,
go look for yourself, Xeons are cheaper.

AMD might have something with Opteron, but right now, it's really too early
to tell.   Most Linux distros don't take advantage of it, and 99% of your
standard binaries and utilities aren't compiled with support for it either.
So running an Opteron is more for coolness factor than anything else.  You
can talk about "What's coming out next week/month/year" all you want, but
the fact is, its not here yet.  There might be some marginal gains to be had
with running an Opteron, but nothing awesome.  This could change with time,
but only time will tell. =)

AMD has some good ideas, and some cool applications, but for right now, in
my opinion, the only way to go for server applications like what we're doing
with HLDS is Intel.  Hyperthreading is VERY cool on a Linux based HL server.
Like when I can watch top, and I can see my gameservers bouncing between 4
cpu's and other tasks being offloaded on the fly, not having to wait, or
fight for CPU time, this makes me and my players happy.

I firmly expect to see the AMD fanboys riled up and give me 23432432
different reasons as to why AMD is better because they read on xxx review
site that it just is, but I've run both platforms, and seen the difference
for myself.  Given the choice between processor x, which is less expensive,
has proven track record spanning years of reliability and is fully supported
by an OS I put on it, or Processor Y that is slightly more expensive, about
as fast as the other processor, runs hotter, and doesn't have ANY extensive
datacenter testing yet, I know which one I'd go with.


My .02.

Chris



_______________________________________________
To unsubscribe, edit your list preferences, or view the list archives, please visit:
http://list.valvesoftware.com/mailman/listinfo/hlds_linux

Reply via email to