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  2. JAVA400-L
  3. July 2010

Re: Optimize java to run on AS400

Ashish,

David went where I was going to go. If you are on the more recent versions of the OS, you shouldn't have to optimize. Also, as I understand it, the 64bit "classic" version is going away in IBM i 7.1.

The 32bit JVM has performed very well in my Tomcat and JRuby applications (Glassfish) on i. Not sure what WAS is best optimized for.

Pete


On 7/6/2010 7:44 AM, David Gibbs wrote:
Ashish Kulkarni wrote:
We are on V6R1 and just turned on 64 bit on AS400
If you're using the 64bit JVM, then you're using the PASE based JVM ... and I don't think you need to do anything to optimize the bytecode.

At one time, with the classic JVM, you could run the CRTJVAPGM command to pre-create the native code that was attached to the byte code. But I think the need for that mostly went away in later releases.

david


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