On Sep 10, 2007, at 7:06 AM, Vincent de Phily wrote:
On Monday 10 September 2007 14:23:29 Chenri wrote:
- able to generate dynamic charts in line, candlestick based on
the client side from the price feed received
Haven't looked at laszlo charts recently, but should be ok.
Charting and Graphing just underwent a major rewrite, but I don't think
it's available to the community yet. I think it's planned for inclusion
in 4.1 -- but if you're interested in evaluating it, we could arrange
for
you to get access.
- due to the high responsiveness type of the forex trading
industry, it
need also quite responsive interface. I've tested some of the sample
application, but they're kinda slow, it could be my internet line
though, i
hope someone can pointed at me some examples for the kind of
application or
the possibility to do it with lazlo
Writing a snappy laszlo app requires either a very small app or
lots of work.
I have to agree with Vincent here: it can take a lot of work to make
Laszlo
apps fast. A lot of *learning*, actually. This is something that
Laszlo Systems'
professional services and training can help with; see
http://www.laszlosystems.com/services/consulting#profiling
To make a better understanding about the system i'm thinking,
consider creating an online stock trading system where users
can see real time prices (asynchronous but capable of high rate
speed)
with also real time charts that can went back to see years of
historical
prices
and then can orders through the system and can see their online/
realtime
account balance. All of that in one screen.
Laszlo can make very pretty interfaces, but I think that some of your
requirements will be hard to meet. This would be the same with any
browser-based technology.
Check out the Barclays/iShares product, which was developed by Laszlo
Systems for Barclays:
http://www.ishares.com/tools/index_tracker.jhtml
One thing I also want to add is the load burden for providing
connection
for something like 1000 simultaneous connection, how many connections
will it provide service per server, i know this is depends on many
factors,
but do anyone have a rough estimation or experiences about it?
You really want to ask the tomcat or apache guys about that.
Indeed; for SOLO deployments the laszlo server isn't in the loop at all;
you just have tomcat or apache or whatever serving up a swf or an
html file.
So this is really a question for whatever server technology you're
using.
Hope this helps!
-ben
