On Thu, 11 Aug 2022 22:06:57 +0000, Longnecker, Dennis
<[email protected]> wrote:
>We run a lot of JAVA workloads under WebSphere Liberty on our z15.
>
>We are seeing hardly any utilization on our 2 specialty engines (ziip/zaap).
>It is my understanding that ALL java workload is eligible to run under those
>engines, so it has left me confused. We are seeing some offloaded DB2 work
>for the distributed connections, so the engines are working.
>
>Curious if anyone has any suggestions/thoughts on what we might be missing?
>All the settings we have chased down look correct.
>
>Dennis
>
>----------------------------------------------------------------------
zAAP on a z15? Is that even possible? I didn't think so.
Running on zAAP is the default but it can be turned off.
https://www.ibm.com/docs/en/zos/2.1.0?topic=usage-review-java-parameter-settings
The only other thing I can think off of hand (assuming you only have zIIP
engines) is "ZAAPZIIP"
in IEASYSxx, The default is YES, but it can be turned off and then I assume
Java being a
zAAP workload wouldn't use zIIP.
If it isn't either of those, have you considered opening a case with IBM? Your
CPU is certainly
a supported model, but you didn't say anything about OS version, Java version
or liberty.
Best Regards,
Mark
--
Mark Zelden - Zelden Consulting Services - z/OS, OS/390 and MVS
ITIL v3 Foundation Certified
mailto:[email protected]
Mark's MVS Utilities: http://www.mzelden.com/mvsutil.html
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