What’s Important? CICS Transaction vs Region Goals

When assessing how well a WLM policy protects key work it’s necessary to understand how much CPU is used at each importance level. \ If there is very little work at a lower importance (higher importance number) a CPU crunch will leave work at this importance level vulnerable to CPU queuing. Let me give a real, recent example: Db2 “Engine” (DBM1, MSTR, DIST address spaces) were in a service class at Importance 1 - with CPU Critical enabled.

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