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Also it is very common for database connections to be expensive and hence
usually pooled. This automatically makes clients more complex.

Would such pooling improve the numbers?

-----Original Message-----
From: web400-bounces@xxxxxxxxxxxx [mailto:web400-bounces@xxxxxxxxxxxx] On
Behalf Of Dean, Robert
Sent: 6. august 2012 12:50
To: Web Enabling the AS400 / iSeries
Subject: Re: [WEB400] XMLSERVICE with .Net

The relatively poor performance of QZDASOINIT might be due to the client.
Typically a database tool would not only need to retrieve the data, but it
would also have to retrieve the table metadata to know the column data
types. A CGI interface has no such requirement.

An apples-to-apples comparison would be, for example, a Java program that
uses an HTTP client to consume the CGI program results and JDBC to consume
an SQL result set. I suspect that comparison might come out just about
even, but I don't have time to invest in backing that up with testing.
________________________________________
From: web400-bounces@xxxxxxxxxxxx [web400-bounces@xxxxxxxxxxxx] on behalf of
Nathan Andelin [nandelin@xxxxxxxxx]
Sent: Monday, August 06, 2012 1:32 AM
To: Web Enabling the AS400 / iSeries
Subject: Re: [WEB400] XMLSERVICE with .Net

From: "Dean, Robert"
I'm actually reserving judgment. I'd like a little more detail on the
tests.
Based on the descriptions Nathan's provided, I have a concern that it
might not be an apples-to-apples comparison.


I tried to make it clear that I wasn't testing calls to XMLSERVICE
procedures or comparing its CGI interface vs. its QZDASOINIT interface. I
was just bench marking my own CGI interface vs. a QZDASOINIT interface for
downloading SQL result sets to my browser, Visual Foxpro, and IBM i
Navigator.

The CGI interface performs slightly better than the QZDASOINIT interface, in
my benchmark.

So I question Alan's and Brian's performance "warnings" with respect to the
XMLSERVICE CGI Interface.

-Nathan
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