Rick,
 
Thanks for your quick response. That's what I was suspecting. Yes, we
are doing everything in the worst possible way. This application was
written several years ago for what was, back then, a small shipping
system. Since we have grown in that timeframe from 400 people to over
1000 and the system has been expanded to cover all shipping and
additional functionality it's degrading into almost total uselessness. 
 
   I'm going to try coding some of the larger queries into stored
procedures and using direct DBMS calls to see if this helps. You also
have a good idea of bringing much of the data into an array and
filtering the contents instead of calling another query. This is
something I had not thought of and my be able to be used as well.

________________________________

From: Rick Sanders [mailto:[EMAIL PROTECTED] 
Sent: Thursday, June 28, 2007 9:05 AM
To: [email protected]
Subject: RE: Witango-Talk: Very puzzling...



In my experience with WiTango loops, it's the application that's badly
written. When returning a lot of records from the SQL database in a
loop, it can take a really long time to display the results. I've tested
queries and ran them directly on the database returning as many records,
and it took a fraction of the time.

 

ODBC has gotten better over the years, but it's still not as fast as
connecting natively to the SQL engine. I've also done tests with the
same function and query in Cold Fusion & ASP.net, and it was at least 25
times faster than WiTango. In some cases using the DirectDBMS action
instead of a Search action has given me better performance. I've even
gone as far as dumping the results to an excel file and displaying that
back in the browser which was also quicker.

 

I'd look at the queries, and see if there's a way to further limit the
search results. Also, are you dumping the results to an array, then
filtering or parsing the results?

 

 
Rick Sanders 
President
902-401-7689
www.webenergy-sw.com 

 

Shop online for computer systems, accessories, and much, much more! 
http://shop.webenergy-sw.com <http://shop.webenergy-sw.com/> 

 

From: Wolf, Gene [mailto:[EMAIL PROTECTED] 
Sent: June 28, 2007 9:50 AM
To: [email protected]
Subject: Witango-Talk: Very puzzling...

 

   I have a situation here that I find very puzzling. So I am going back
to the experts for advice. 

   We have a few applications that, by their nature, perform thousands
of requests against a SQL database and return thousands of records. I am
quite sure that the coding of the application isn't as good as it could
be and we will look into rewriting it. Here's our issue: This program,
from start to the time it displays the returning page will take about 3
minutes. (stop groaning). We are testing this same application on a new
box containing 8 dual core cpu's. I would expect one of those cpus to be
pegged while Witango rips through these thousands of requests. Just the
opposite. The cpus indicate hardly anything happening on the box. The
same is true of SQL server. Even though I am literally throwing
thousands of requests at SQL 2005 I'm seeing virtually no cpu activity
on that box either.

   It looks almost like Witango is waiting for something, processes a
request, waits a bit more, processes the next request, waits again, etc.
The environment is Windows Server 2003. One Box is running Witango 5.5
with 8 dual core processors and the other box is Windows Server 2003
running SQL Server 2005. Yes, this program is coded and does some
looping but I would still expect it to run one heck of a lot faster than
it is.

   Any suggestions? 

Gene Wolf 
Supervisor, Business Systems 
DRS Sensors & Targeting Systems-Optronics 
2330 Commerce Park Drive NE 
Palm Bay, Florida 32905 
Phone: 321-309-0685 
           321-309-0202 (fax) 

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