Flex deployed on a large scale?

We plan on developing a new product and Flex popped in my
mind as a development platform. I know a good deal of Flex 1.5, but
only used it for personal sites.
My question is how well Flex behaves in a large scale
environment to those who have deployed it in such. Server load will
be at least thousand / day.
Thanks!

Hmm... I made one medium sized application in 1.5 (approx 10
screens, user access <1000 times per day) and it seems to be
working alright for the client.
Now I am working on a major application (over 20 main
screens, and definately access>1000 times per day) and it is not
going well. I am really worried about the bugs and memory issues of
Flex 2.0. I have also not found a sure-fire way to address these
potential issues. I can say this: for the size of application we
are making, Flex and Flash Player just aren't up to the job.
Compiled and executed as a single .swf application results in 755MB
ram usage and for some reason a constant CPU access of 60% (Pentium
4 proc.) after accessing every screen. And this is just FlashPlayer
doing what it is supposed to. Me, not being a computer engineer,
can't really address these problems. Flex and AS aren't C. I can't
control memory usage with my code. By breaking up the huge
application into smaller ones and then loading those via an
SWFLoader I may be able to avoid this rampant resource hogging but
it's sort of illogical from an application architecture standpoint
because this is ONE application.
As a developer, I can see plenty of places to streamline the
application but this simply isn't possible when dealing with the
client. They want this screen to look and act this way and that
screen to look and act the other way. I can talk about how if both
screens use the same layout and logic they can both use the same
template class, share static resources, blah blah until I am blue
in the face but it won't matter because they are the client and
they decide how the application is going to look--at the expense of
streamlining. That's just the real world. Then I have to somehow
make it work.
By the way... before you think "just use view states!", I do
use those--and bitwise logic flags for more complicated
configurations--it's still not enough, although it did cut approx
160 screens in documentation form down to just 20 in
implementation.
In worst case scenarios, I have to deny the client what they
want and if they ask me why, I have to reply "it can't be done with
Flex". Then their satisfaction in the product drops. Flex suddenly
isn't as incredible as it seemed at first. Doesn't matter how
pretty and animated the screens are when if you run them over an
hour your computer slows to a halt or .ttc fonts stop loading (HUGE
issue here in Japan).
I have yet to see a sample application that comes close to
the scale of our current project: A library book browser? neat but
that's just square one; A Commodore 64 emulator? cute. no place in
business; A real-estate browswer? in our project that would be the
equivalent of ONE SCREEN out of the entire application.
I like Flex. It's fun--on a small scale. But I never want to
develop a real world business application using it again. There are
way more (and way more skilled) Java, JSP, PHP, etc. etc.
developers out there than Flex developers who can make much more
robust applications. It's a shame the client got caught up in the
hype of Flex RIA before the technology was ready for the task.
Very long story short: Beware using Flex for an involved
application.
It's going to require exponentially more time than a smaller,
less ambitious project--especially if you don't purchase FDS. And
oh my god implementing a Flex application on a legacy Struts
framework... kill me now! As much as I hate "page-refresh"
applications, Flex (both 1.5 and 2.0) has not proven to be the
god-send that I had hoped and dreamed it would be as a developer.
What can you expect, though? It's only been out a few years.... And
as far as clients' perspectives go, the price for FDS also
certainly doesn't help make it appealing. That is why it is so
embarrassing to tell them their dream application is quickly
becoming an egregious memory hog.
Anyway, good luck if you take on your project with flex. Just
be careful!

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From: Inman, Kal
Sent: Thursday, June 12, 1997 7:07 AM
To: [email protected]
Subject: RE: large scale forte implementation
Farhad
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From: [email protected][SMTP:[email protected]]
Sent: Wednesday, June 11, 1997 10:07 AM
To: [email protected]
Subject: large scale forte implementation
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