Duration. Seems simple enough: how long do I give a transaction to get done? The reality is somewhat more complex. Firstly, the duration is not wall-clock time, it’s weighted Service Units. And what are your ‘weights’ (coefficients) anyway?
Are you aware that, as of z/OS 2.5, these variables become fixed by IBM? If yours are different – they will change – along with your accounting, if it’s based on service units. Further, every machine is different: have you checked durations since your last upgrade?
Multiple periods are one of the most powerful – and dangerous – tools in the performance analyst’s arsenal. They can ensure critical work gets done and runaway work can’t take over. This webinar provides a timely update to setting up or reviewing this critical area.
More IntelliMagic zAcademy Sessions
Don’t Keep Your CPU Waiting: Speed Reading for Machines | IntelliMagic zAcademy
This webinar discusses the many tiers of storage in IT systems and offers ideas about how to optimize access to those areas.
Best Practices in CICS Performance Analysis (Transactions and Statistics) | IntelliMagic zAcademy
This session will introduce you to several best practices for enhancing your analysis of CICS Transaction and Statistics data.
From CPU MF Counters to z16 Invoices: Thoughts on the Impact of Processor Cache Measurements | IntelliMagic zAcademy
The z16 introduced substantial processor cache design changes. Learn how this impacts the operation and efficiency of your workloads.