Perfs problems on AIX

[2005 IR Help]

By: Jean-Louis Berliet - jlberliet

Perfs problems on AIX

2004-02-12 01:12

i'm using jasperReports in a web application.

When the application runs on windows 2000 the pdf files are generated quickly (< 2s).

When the same application runs on Aix 5.1, JVM 1.4 the pdf files are generated very very slowly... (> 30s). The server has a lot of memory (4 Go) !

My application server is tomcat 4.18 and the report is generated in a servlet and i put -Djava.awt.headless=true

in the CATALINA_OPTS

 

Thanks.

 

 

 

 

 

By: Teodor Danciu - teodord

RE: Perfs problems on AIX

2004-02-12 02:14

 

Hi,

 

I think you have overriden the memory allocation

settings for tomcat by modifyind CATALINA_OPTS.

I had this problem myself last week.

The -Xmx command line parameters are set somewhere before and by setting the

CATALINA_OPTS you remove them.

So your tomcat runs with the default amount of

memory and the JVM spends a lot of time garbage

collecting things.

 

 

I hope this helps.

Teodor

 

 

 

 

 

By: Jean-Louis Berliet - jlberliet

RE: Perfs problems on AIX

2004-02-12 03:12

I have the same problem without TOMCAT, on a standalone application on a linux box :

 

- with IBM/JVM 1.4 (and "-Xmx512m") : 3 minutes

- with SUN/JVM 1.4.1 : 30 seconds

 

What is the problem ?