As your zIIP utilization approaches 100 percent what you should expect is a corresponding increase in zIIP-on-CP time. That is a system-wide processor optimization technique. It does not deal directly with the subject of WLM workload dispatching priorities.
-----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Andrew Rowley Sent: Wednesday, September 6, 2023 6:37 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: [EXTERNAL] Re: Switching between SMT-1 and SMT-2 ====================================================================== I'm not advising customers, I'm just saying that workloads like Java in particular can and will easily drive zIIP to 100%. I would have expected that WLM would be able to manage dispatching priorities to avoid impacting DB2. That might require e.g. the Java work running in a discretionary service class. Is that not the case? -- Andrew Rowley Black Hill Software ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
