Re: 'Multi-threading' and RPG

Ok Nathan, I probably got it wrong. I understand it as the combination of
RPG and threads.
In normal processing I don’t have much use of threads in RPG, however when
it comes to communication and asynchronere invocation- then Threads fits
the bill... Always use the right tool for the right solution

fre. 21. aug. 2020 kl. 19.22 skrev Nathan Andelin <nandelin@xxxxxxxxx>:

On Fri, Aug 21, 2020 at 1:16 AM Niels Liisberg <nli@xxxxxxxxxxxxxxxxx>

wrote:

Take a look at the ILEastic project. It is all multi-threaded.

Especially look at the examples - since the core it self a written in C,

however all the “cool-stuff” is multi-threaded RPG

Niels,



I think Stephen was asking about using RPG to instantiate threads. At

least, that's how I interpreted his question. On the other hand, it would

be nice if he clarified.



If I understand correctly, ILEastic is a multi-threaded socket server

written in C that calls RPG programs, which are thread-safe by using
ctl-opt

thread(*CONCURRENT).



I do agree this may be a viable option for distributing work to multiple

RPG instances, comparable to having a pool of RPG servers listening on a

data queue.



But as Scott Klement alluded, workload distribution may NOT improve overall

performance or throughput, particularly when using a partition with a

single core or less.



Stephen,



You indicated that the JSON documents could be divided into 2 blocks. Were

you thinking of writing your own program to parse the original document

into 2 stream files?

Then using YAJLINTO to parse each of those?



Do you need to map most or all the JSON values to RPG data structures?

Data-Into and YAJLINTO are designed for that.



But if you don't need all the data, you could greatly improve overall

throughput by mapping only those values that you need.

--

This is the RPG programming on IBM i (RPG400-L) mailing list

To post a message email: RPG400-L@xxxxxxxxxxxxxxxxxx

To subscribe, unsubscribe, or change list options,

visit: https://lists.midrange.com/mailman/listinfo/rpg400-l

or email: RPG400-L-request@xxxxxxxxxxxxxxxxxx

Before posting, please take a moment to review the archives

at https://archive.midrange.com/rpg400-l.



Please contact support@xxxxxxxxxxxxxxxxxxxx for any subscription related
questions.



Help support midrange.com by shopping at amazon.com with our affiliate
link: https://amazon.midrange.com