On Thu, 11 Aug 2022 22:06:57 +0000, Longnecker, Dennis <dennis.longnec...@courts.wa.gov> 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:m...@mzelden.com Mark's MVS Utilities: http://www.mzelden.com/mvsutil.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN