RE: I have a couple of questions concerning Xerces and Performance....
Crain, David B. (LNG-DAY <David.Crain <at> lexisnexis.com>
2006-10-02 17:30:31 GMT
I do not have any issues with what is contained within the any of the
given content of the Xerces libraries. I do not have any issues with the
fact that this version of Xerces will execute with any version of
My question is "how well"???
David B. Crain
Consultant Software Engineer
Editorial & Conversion Systems
Phone: 937-865-6800 ext. 56303
From: Jacob Kjome [mailto:hoju <at> visi.com]
Sent: Monday, October 02, 2006 1:04 PM
To: j-users <at> xerces.apache.org
Subject: Re: I have a couple of questions concerning Xerces and
Quoting "Crain, David B. (LNG-DAY)" <David.Crain <at> lexisnexis.com>:
> 1) What version of the JDK/SDK was used to build the latest
> version of Xerces jars. I am referring to the following download site:
Did you try looking at the xercesImpl.jar MANIFEST.MF? It says...
Created-By: 1.3.1 (IBM Corporation)
Not sure about the rest below. However, I don't think the JDK used to
the code should have much (any?) effect on performance at runtime. I
newer compilers might optimize the bytecode a little better. In any
Xerces is compiled with a lowest-common-denominator JDK so that (I
Note I'm not a Xerces project team member, so this is my own $0.02)...
1. It can run in the earlier JDK's as well as the newer ones. Setting
"target" and "source" compile options are another way to do this, but
doesn't solve #2...
2. Newer API's aren't accidentally introduced.
> 2) Has anyone ever done a performance test between different
> versions of the JDK/SDK, like:
> a. Sun 1.4.2 vs. IBM 1.4.2???
> b. 1.4.2 vs. 1.5.0??? (I would assume performance differences
> 3) Is there a website where this has been documented???
> David B. Crain
> Consultant Software Engineer
> Editorial & Conversion Systems
> Phone: 937-865-6800 ext. 56303
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