On Wed, Apr 10, 2019 at 6:40 AM Gadi Ben-Avi <[email protected]> wrote:

> Does Python running under USS know how to utilise zIIP ?
> I downloaded Python from Rocket Software's site.
> Thanks
>

I would doubt it. There is a special, undocumented & restricted, API to
switch work from a CP to a zIIP. As far as I know, only the IBM Java JVM
does this. Python is written in C (or maybe C++) and so I doubt it would
qualify.

Just as an aside, I can imagine (hope not) that at some point in time, use
of a zIIP by "application code", even written in Java, will stop. I think
that creating the zAAP back in the day was to lure "Web" work off of
Windows/Linux to z/OS by making such work "free" if written in Java (or at
least in Java byte code, running on the JVM). I know that I made a vain
attempt many years ago to convince management to get a zAAP and start
writing in Java. I even pointed out that CICS can run Java; as can batch.
And that the programmers could use Windows Java tools to write and even do
minor testing on their Windows desktop; saving MSUs by reducing TSO editing
and running compiles on z/OS (since a Windows generated jar file, if
properly written, can be uploaded and run on z/OS -- I've done it.)


> Gadi Ben-Avi
> z/OS systems Programmer
> Malam Systems
> Jerusalem, Israel
>
>
-- 
This is clearly another case of too many mad scientists, and not enough
hunchbacks.


Maranatha! <><
John McKown

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