Stream: Virtual Room 5
Time: 15:00 - 15:45
Interrupt Delay is technically part of I/O response time. Unlike the original subcomponents: IOSQ, PEND, CONNECT, and DISCONNECT, I/O Interrupt Delay has nothing to do with your storage; it is entirely within the CEC. In recent years, IBM has updated their guidance on CPENABLE and, with z/OS 3.1 we introduce a new option CPENABLE=SYSTEM. Rather than specific high/low values, this new option will apply IBM's recommended setting (currently "5,15" for z14 and later). Join us to gain helpful insights into sources of Interrupt Delay and how to measure them, as well as if this new option is right for you.
There is currently no attachment for Pardon the Interruption: CPENABLE and Interrupt Delay
John Baker, Principal Consultant at IBM, has been working with mainframes for over 30 years, both as a customer and consultant. His primary focus has been on system and application performance. As a customer, John designed, implemented and maintained many critical projects such as WLM Goal Mode, GDPS/Data Mirroring, and merging datacenters. As a consultant, John has assisted many of the world's largest datacenters with their z/OS performance challenges. John is a frequent and much appreciated speaker at industry events like SHARE, CMG, GSE and IBM conferences. He has served on the Board of Directors of the Computer Measurement Group (CMG) and currently volunteers with the MVS Performance Project (MVSP) at SHARE. In his spare time, John enjoys pool, motorcycles, his dog, old port and a spirited political debate. He lives with his family near Toronto, Canada.
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