On 4/25/2022 6:29 AM, Matt Hogstrom wrote:
Kirk, IIRC Node.js was one such technology. I don’t have a lot of familiarity
on the tech but from what I remember it was not possible to “port” the engine
because it directly generated x86 instructions (I was told) so it basically
compiled the code to x86. IBM had a challenge getting it on z/OS because of
this. Given there is now ARM, x86, s390x I presume that the architecture has
changed, but like I said, my information was from the sidelines. That is not
an easy port.
IBM did a GREAT job with the heavy lifting for node.js!
Much of our back-office infrastructure supporting our web pages and
secure portal is written in node.js. The same programmer can write
node.js targeted for Linux on x86, Linux for Z, and z/OS. There is no
difference in how it's programmed, but there is a difference how it
performs.
The z/OS version is not zIIP-eligible and is therefore running on
knee-capped CPs in our environment. When running on Linux for Z it runs
on an IFL which is fast (and SMT-threaded). The Linux for x86 version is
also fast (and hyper-threaded). Given this constraint, we try to put
CPU-intensive activities (such as code page conversion) on the
faster-executing platforms.
--
Phoenix Software International
Edward E. Jaffe
831 Parkview Drive North
El Segundo, CA 90245
https://www.phoenixsoftware.com/
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