RE: Optimizing Native Java

Aaron,

One thing to check is that your garbage collection interval is not defaulting, 
causing excessive GC. Try adding -Xms32m to your java command. Like all the 
other suggestions, it's no magic button but it might help a little.

-Marty

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date: Mon, 16 Oct 2006 10:12:29 -0500
from: "albartell" <albartell@xxxxxxxxx>
subject: Optimizing Native Java

Hi All,
 
I am just completing a project where I wrote a Java proxy of sorts and there
were a bunch of third party jar files involved in the mix. To make a long
story short we are not satisfied with the performance we are getting out of
the Java processes on the iSeries (note the Java is running in it's own job
listening to a data queue - only one JVM startup).  We have run the
CRTJVAPGM against all .class and .jar files involved and are wondering are
there any other mechanisms to look at concerning getting more speed on the
Java end?
 
Obviously one solution would be to throw more memory at it, but is there a
way to section off the memory so this Java process gets sole use of it
(similar to how you can do the same for Websphere Application Server)?
 
Any other idea's?
 
Aaron Bartell