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  2. JAVA400-L
  3. January 2022

Re: Java performance qshell javac

On 1/19/22 12:51 PM, John Allen wrote:
I have a java program (class file) that performs AES 256 encryption

On one partition running 7.3 it runs in 15 seconds (wish it was faster)

On partition 2 running 7.3 it runs in 80 seconds (not acceptable)

Any suggestions on what I can change that might make a difference?

How are you invoking the java? Are you loading a new instance every time?

My personal recommendation is to create a java server that's launched on system start up. The server code listens on a data queue. Native code would then send a message to the server via the data queue and get it's response there.

That way you incur the java startup penalty once.

david


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