Tomcat Performance Problem (W2K)

[Michael Schroeder]

Hi all

I have a strange performance problem using Tomcat:

Versions:
Java 1.4.1_03-b02
Tomcat 4.1.27-LE
PC1: Windows 2000 Server latest SP
PC2: Windows XP latest SP

I have a simple JSP-application that makes use of an ODBC database
(access). When I run it using Tomcat on PC2 (XP) its performance is
very good. However, running on PC1 (W2K Server) is orders of
magnitudes slower! :-(

I have already read most of the relevant manuals and tried various
settings (server.xml, JAVA_OPTS, ...). No help.

Has anybody observed similiar problems?
Any help is appreciated...

Greetings
Michael Schroeder

 

[Jon Skeet]

I have a strange performance problem using Tomcat:

Versions:
Java 1.4.1_03-b02
Tomcat 4.1.27-LE
PC1: Windows 2000 Server latest SP
PC2: Windows XP latest SP

I have a simple JSP-application that makes use of an ODBC database
(access).

That sounds like a bad move to start with, to be honest - especially if
you're using the JDBC-ODBC bridge, which really isn't meant for
production.

When I run it using Tomcat on PC2 (XP) its performance is
very good. However, running on PC1 (W2K Server) is orders of
magnitudes slower! :-(

I have already read most of the relevant manuals and tried various
settings (server.xml, JAVA_OPTS, ...). No help.

Has anybody observed similiar problems?
Any help is appreciated...

Have you tried a stand-alone app which does similar database access, to
see whether it's likely to be that or Tomcat itself?

 

[Michael Schroeder]

Thank you very much for your answer, Jon!

That sounds like a bad move to start with, to be honest - especially if
you're using the JDBC-ODBC bridge, which really isn't meant for
production.

Unfortunately, I am not able to change the design of the application.
On PC2 the perfomance of the application is very good.

Have you tried a stand-alone app which does similar database access, to
see whether it's likely to be that or Tomcat itself?

I haven't had time for this. Since the performance is good on PC2, I
guess the problem is related to the configuration of W2K/tomcat/java.

Are there any pecularities for running java apps on W2K server?

Greetings
Michael

 

[Jon Skeet]

I haven't had time for this. Since the performance is good on PC2, I
guess the problem is related to the configuration of W2K/tomcat/java.

Are there any pecularities for running java apps on W2K server?

Not particularly, that I know of. I would seriously suggest running
that stand-alone app to test performance - it shouldn't be that hard to
write.