Are you only running this in 1 jvm?

How many cores does your ibmi have?

I would suggest using parallel streaming. Its pretty easy to do in java and
allows you to make use of all cores.

Ive never done this on ibmi but it works well on windows, so not sure what
it would do to your overall system performance if you have other things
running on the box...


On Mon, 23 Nov 2020, 19:39 Logic IT: K. Fritz, <k.fritz@xxxxxxxx> wrote:


I've a very special case of a customer.

Case: Printing a QR Code with the Swiss flag in the middle.

Printerfiles are not able to do that, QR-Codes yes, but not with an

So I've wrote a small ZXING Java program and a colleague a DataQ server
program to prevent multiple starts of the JVM.

But it's still too slow! For 1000 QR Codes needs my i9 3 Min and the
customer talks about 2 Million documents with a QR-Code.

How can I achieve much more speed to run the java prog?

This customer wants a full IBM i solution.

Who can give me a good advice.

Thanks and take care.


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