15835: Sharing CPUs: How z/OS and PR/SM Manage Logical and Physical Processors
Project and Program:
Service Delivery,
Performance & Capacity Management
Tags:
Proceedings ,
2023 ,
SHARE New Orleans 2023
Inside your mainframe there are physical CPUs, but in almost all cases z/OS gets
logical CPUs to run work on. This distinction is sometimes confusing to people,
especially in relation to how it can affect performance and available capacity.
In this session we'll discuss logical CPUs, physical CPUs, and the importance of
understanding LPAR configuration options that can impact performance. After
attending this session you should have a clear mental model of logical versus
physical CPUs as well some ideas about how to optimally configure your important
LPARs.
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