Hi,

We are running servlet on Tomcat 4.1.x /RedHat EL 3.0 and Java 1.5.0_04. 
The servlet creates PDF documents using FOP . This servlet will be used 
from another Java application to create PDF documents on the fly. Because 
of that we are trying to increase the number of concurrent users this 
servlet can serve to 50. 

Usually above 10 concurrent users the test starts failing with the 
following JVM settings -Xmx512M:

When the memory settings are increased to something like this 
-Xms1280m -Xmx1280m -XX:NewSize=512m -XX:MaxNewSize=512m 
-XX:+UseParallelGC -XX:PermSize=64m -XX:MaxPermSize=64m

The test start failing with 2 concurrent users which is strange 
considering the bigger memory allocated to Tomcat.

I would like to know if there are users of FOP who could help with memory 
tuning of JVM to increase the scalability of an application using FOP.

Thanks,

Dimitar 

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